CN1454276A

CN1454276A - Toilet bowl and method of manufacturing the toilet bowl

Info

Publication number: CN1454276A
Application number: CN01801428A
Authority: CN
Inventors: 小杉建博; 杉田泰司; 小川孝一; 德永博之; 大谷孝幸
Original assignee: Toto Ltd
Current assignee: Toto Ltd
Priority date: 2001-08-13
Filing date: 2001-12-20
Publication date: 2003-11-05
Anticipated expiration: 2021-12-20
Also published as: KR20040015668A; TW508398B; CN1246546C; AU2001298055A1; AU1951002A; WO2003016643A1; US20030115664A1; JP3760916B2; JPWO2003016643A1

Abstract

In order to enable a low profile for a toilet, and provide more universal toilet installation. A first principal flow S1 is formed by convergence of flush water discharged from a first basal nozzle basal first nozzle hole 41 and a basal second nozzle hole 42. By means of this convergence the first principal flow S1 is generated with correct directionality and strong force, and converges with the bowl water RS diagonally rightward and forward from the left rear end of the toilet, as seen in the plan view. Flush water discharged from a left central nozzle hole 43 circles around the upper peripheral wall of the toilet bowl at the bottom edge of the rim, but during this time the discharge course thereof is corrected by means of converging flows of flush water discharged from the rim, to produce a second principal flow S2 generated by means of this convergence with correct directionality and strong force. The second principal flow S2 converges with the bowl water RS diagonally leftward and rearward from the right front of the toilet. This first principal flow S1 and second principal flow S2 converge substantially parallel to either long side of the bowl water RS, as viewed in the horizontal plane, and in the same circling direction. In this way circular flow is reliably produced in the bowl water RS and circulation thereof is accelerated.

Description

Lavatory pan and manufacture method thereof

Technical field

The flushing water that the present invention relates to the outside is supplied with is to the lavatory pan of closet pelvic part discharging with the flushing closet, and, belong to this lavatory pan and have the manufacture method of the lavatory pan of siphon trap pipeline.

Background technology

For this lavatory pan, requiring it to have can be with dirt with the ponding of closet pelvic part and outer for the flushing water performance of discharging expeditiously together, and can reduce outer for the flushing water total amount.Satisfy this requirement, various methods are arranged, following classification substantially.The 1st method is to make outer flushing water and the ponding interflow of supplying to produce rotary water current, utilizes flowing of this eddy flow dirt to be pressed into the method for trap.The 2nd method is a method of utilizing siphonage that dirt is taken away with flushing water with ponding.

When adopting said method, normally the upper limb periphery at the closet pelvic part is provided with ring water flowing road, supplies flushing water from the weep hole that is arranged on this water flowing road outside the ponding discharging, thereby makes ponding produce eddy flow.And produce the method for siphonage, utilization be ponding to be pressed in the trap by said eddy flow, perhaps, rely on the simple whereabouts that is arranged at the flushing water that a plurality of weep hole discharged on the ring water flowing road and with principles such as ponding are pressed into.

But the method that existing lavatory pan is adopted still can not be satisfactory, also exists problem as described below.

In recent years, the cry that require to reduce the flushing water total amount (supplying the flushing water total amount outward) that is used to wash away dirt is more surging, and this flushing water total amount has generally reached 6 liters of so few degree.In order to produce above-mentioned eddy flow or siphonage with so little total flow, people are conceived to the bigger flow of water, promptly supply with flushing water with big flow, make flushing water flow into the closet pelvic part with about about 100～150 liters/minute flow mostly.

Owing to need the big like this flow of water, therefore, for the lavatory pan of flushing water,, need to improve the water surface of flushing water stored in the water tank to guarantee head pressure in order to guarantee the big flow of water from the discharging of flushing water water tank for outer.Therefore, have to do the flushing water water tank higher, thereby for the product that water tank and closet are made of one, be restricted in appearance design, the low dwarfing of lavatory pan is affected.

In addition, for the flushing water of primary side pipe arrangements such as running water pipe is directly supplied with in the closet of a kind of like this form of closet,, need supply with the primary side feedwater with higher hydraulic pressure in order to strengthen the flow of water of the flushing water that collaborates with ponding.On the other hand, flushing water is collaborated to produce the occasion of eddy flow, though the big flow of water helps the generation of eddy flow, because flushing water keeps its big flow of water to collaborate constantly with the big flow of water and ponding, therefore, also can make the useless rotation turbulent flow of generation in the eddy flow sometimes.So, the continuation that might make the energy (flow of water) of flushing water be helpless to eddy flow produces, and causes eddy flow that the efficient that flushing water is pressed in the trap is reduced.And in the lower area of primary side pressure of supply water, the flow of water of the flushing water that determines by feeding water also will weaken, and the pushing efficient of eddy flow also reduces.Therefore, the spiral-flow type lavatory pan does not make progress in pressure of supply water low area or national popularizing.

And utilize in the lavatory pan of siphonage the generation of siphonage and can to continue be indispensable.Therefore, more extremely important, that is, supply the inflow of flushing water in ponding outward, when initial the inflow, it is outside and make and be full of water in the pipeline that the air in the pipeline of siphon trap all is discharged into trap.For this reason, no matter flushing water is cyclone mode or falls into mode to the discharging of closet pelvic part, as long as the inflow of flushing water in ponding carried out with the big flow of water, just can make the air in the pipeline be discharged into the outside and make it to be full of water in the short period of time with the less flushing water water yield, so be suitable for employing.Otherwise, if the flow of water that flushing water flows into is less, then need supply with flushing water with exhaust air and make and be full of water in the pipeline with the long period, must use a large amount of flushing waters, and present situation is at present, still unmannedly inquiring into aspect the little flow of water inflow of flushing water adopting.Under this background,, still to increase the height of flushing water water tank in order to guarantee head pressure, thereby be restricted, and be subjected to the restriction (high pressure of supply water) of primary side pressure of supply water at the outward appearance design aspect even if use in the lavatory pan of siphon trap.

On the other hand, for existing siphon trap formula lavatory pan, produce in early days for making siphonage, people have thought various ways, and what adopt morely is to make the water-filled in early days method of siphon trap pipeline.Promptly, with respect to the closet pelvic part, make flushing water with the big flow of water, promptly about about 90～100 liters/minute or according to circumstances flow into the closet pelvic part with about 150 liters/minute big like this flow, impulse force with this water is released the air in the siphon trap pipeline outside the pipeline, makes flushing water in early days whole pipeline is full of.

As this existing siphon trap formula lavatory pan, be that to make pipeline be full of water with flushing water that big flow is supplied be prerequisite, therefore, for the inflow of satisfying big flow flushing water with pass through, for from riser culverts through the siphon trap rail mark of dog leg piping till the decline pipeline, people have proposed various technology.And these technology, special consideration is done in the forming accuracy of siphon trap pipeline and the aspects such as pipeline shape of various piece when improving manufacturing.Yet, in recent years, because reducing the cry of the flushing water total amount (supplying the flushing water total amount outward) that is used to wash away dirt, requirement grows to even greater heights, therefore, also need and improve and try every possible means aspect the precision in the shape of siphon trap pipeline various piece, and present situation to be this respect do not enough.

Below specifically describe.

As previously mentioned, because flushing water flows into the closet pelvic part with big flow, therefore, as long as by riser culverts portion, have the curved top portion on the weir, top that water accumulation level is limited and decline pipeline and link to each other and form siphon trap pipeline continuously, just can not influence the generation of siphonage.Therefore, when making closet, piled stock on mould with the protuberance shape that conforms to the internal perisporium shape of closet pelvic part, with the blank that forms like this its closely a side of contact mould as inwall of closet pelvic part, with the opposite side of blank inwall as riser culverts portion.An opposite side of this blank is not contact and form with the profile of mould, therefore, produces concavo-convex sometimes.For curved top portion too.Particularly, in this curved top portion, because the weir, top is positioned at pipeline inside, therefore, turning back because of pipeline and can only make in the projecting inward shape of pipeline in the top, can't try every possible means in shape at it again.That is,,, owing to be prerequisite, therefore, needn't worry that the circulation in pipeline forms and hinders to flushing water in this concavo-convex meeting, needn't treat as a problem to supply with big flow flushing water as existing lavatory pan even if produced concavo-convexly at pipeline inner wall.In addition, as existing lavatory pan, be air in the pipeline to be driven out of quickly with big flow flushing water, therefore, the weir, top can to turn back be convex form owing to pipeline, its shape can not become problem yet.Just, consider inadequately at the vpg connection that improves forming accuracy and each pipeline owing to these reasons.

But, when this siphon trap formula lavatory pan is installed, need be connected between the outfall of closet outside and the siphon trap pipeline.The specification of this outfall and disunity, be subjected to the predetermined restricted of employer's organization and government or group etc., therefore, in being connected of the outfall of closet outside and siphon trap pipeline, using the split member that is known as so-called Connection Block with the material manufacturing different with the closet of porcelain manufacturing.

For example, determining the center to center distance from the closet wall to outfall centre distance, there is different regulations each countries and regions.The center to center distance difference, the closet rear end is just different with distance between the outfall.With respect to this, the siphon trap path in the closet is roughly the same, therefore, when closet is installed, need select the above-mentioned Connection Block after the processing such as carrying out bending according to different center to center distance for use, bothers very much when constructing.In order to eliminate this trouble, as long as change the terminal position that porcelain is made siphon trap pipeline in the closet according to center to center distance, yet, therewith correspondingly, the kind that the closet body is made employed mould (this body and function mould) will increase, need prepare accordingly and work such as mould selection, will cause die manufacturing cost to increase, the mold management cost increases.Therefore, actual conditions are to have to by selecting above-mentioned Connection Block to solve.

The present invention is intended to address the above problem, and its objective is, advances the low dwarfing of lavatory pan and improves the versatility that lavatory pan is installed.

In addition, its objective is, as siphon trap formula lavatory pan, seek the diversity of siphon trap pipeline shape and lavatory pan itself raising made from porcelain to the compliance of outfall specification.

Disclosure of an invention

In order to realize the part of above-mentioned task at least, the 1st lavatory pan of the present invention is that a kind of flushing water that the outside is supplied with discharges from the top of closet pelvic part, holds at the closet pelvic part to produce the lavatory pan of eddy flow with the flushing closet in the ponding that stays, it is characterized in that,

Have the said outer head race that supplies flushing water to guide the top periphery of said closet pelvic part into,

This head race have discharging outer for flushing water makes it as the current that include two main flows with the discharge portion at said ponding interflow,

This discharge portion is outer for flushing water with a kind of like this ponding confluent relation discharging, promptly, make said two flushing water main flows see past tense with said ponding almost parallel ground and the said ponding interflow that is clipped in the middle, and the eddy flow ground and the said ponding that produce same direction of rotation in said ponding collaborate from the angle of overlooking closet.

As the 1st lavatory pan of the present invention with above-mentioned formation, when making two flushing water main flows and ponding interflow, seeing over from the angle of overlooking closet and ponding be clipped in the middle and almost parallel ground carries out in the interflow of these main flows, produces the eddy flow of same direction of rotation in ponding.Because each main flow keeps a kind of like this ponding confluent relation and ponding interflow, therefore, main flow each other can not upset the generation of eddy flow mutually.Therefore, can in ponding, cause eddy flow conscientiously.And, for the eddy flow that main flow produced each other, because the interflow is to carry out with almost parallel and to a kind of like this relation of same direction of rotation, thereby the rotation of the eddy flow of can mutually promoting and can not make its direction of rotation disorder, therefore, the energy (flow of water) of the flushing water that discharges can not have the generation that is used for eddy flow lavishly, thus, can improve the efficient of eddy flow pushing ponding.And this situation also can produce in the less occasion of the flow of two flushing water main flows, and therefore, even it is less to be used for producing the flushing water of two flushing water main flows, the pushing performance of depending on rotation to realize still can be maintained.Its result, the discharging of flushing water can be a low discharge, can realize the minimizing of flushing water total amount.

And, since can take into account the discharging of flushing water low discharge as described above and reduce the flushing water total amount, therefore, for the occasion of the flushing water of supplying with for the generation main flow from the flushing water water tank, head pressure can be less, so the height of flushing water water tank can correspondingly reduce.Therefore, can realize including the raising of the overall appearance design of the lavatory pan of flushing water water tank and the low dwarfing of lavatory pan.

And for the flushing water of supplying with the primary side pipe arrangement as serving as the occasion that produces the flushing water that main flow supplies with owing to can produce the needed eddy flow of flushing with the flushing water of low discharge discharging, thereby, also suitable in the area that primary side pipe arrangement pressure of supply water is lower.Therefore, though at the primary side pressure of supply water because of former thereby lower areas such as water supply pipe laying situations, also lavatory pan of the present invention can be installed.Therefore, with respect to the versatility raising of installation site, thereby can promote to adopt the lavatory pan of this cyclone mode of the present invention in the area of low pressure of supply water and popularizing of country.And, can install and use lavatory pan of the present invention by simple methods such as installation reducing valve in the countries and regions of the high pressure of supply waters of regulation such as rules.

And, because need be not depend on the big flow of water discharging flushing water of big flow, therefore, the noise that can suppress to be accompanied by flushing water discharging and flushing water and ponding interflow and produce, quietness when improving the flushing closet, and, spatter in the time of also can preventing to produce when the big flow of water discharging from cleaning water.

Carry out in long limit one side of the water surface profile of ponding respectively at the interflow that also can make above-mentioned two flushing water main flows that ponding is clipped in the middle and ponding.Like this, the flow direction when each main flow and ponding interflow is controlled easily, so more suitable.

The 1st lavatory pan of the present invention with above-mentioned formation can also adopt following various forms.

That is, the discharge portion of said head race has:

The flushing water that said head race is guided discharges from oblique upper with respect to said ponding towards closet the place ahead one side, to form the 1st discharge portion as one the 1st flushing water main flow in said two flushing water main flows;

The flushing water that said head race is guided is from respect to the same side discharging of center line of two minutes about said the 1st discharge portion and closet, with the 2nd discharge portion of the circumferential rotating flushing water current of said closet pelvic part face this pelvic part face of upper edge that are formed on said ponding water surface top;

With the flushing water current of the 2nd discharge portion interflow and the flushing water current of said the 2nd discharge portion are corrected, the flushing water current of the 2nd discharge portion after this is corrected are as another the 3rd discharge portion of the 2nd flushing water main flow in said two flushing water main flows.

Like this, the 2nd flushing water main flow forms through the interflow of flushing water current, thereby the interflow by current can make it to have the directionality and the powerful flow of water accurately.Therefore, can make the stability-of-path of the current of the 2nd flushing water main flow, thus can be conscientiously with the current direction almost parallel and the guiding of same direction of rotation of main flow.Therefore, when discharging is used for producing the flushing water of the 1st, the 2nd flushing water main flow, can improves by low discharge discharging flushing water and realize the reliability that the flushing water total amount reduces.

In addition, said the 1st discharge portion, the flushing water that said head race is guided is respectively from being formed at a plurality of discharge orifices dischargings on the said head race, makes the flushing water current interflow of each discharge orifice discharging and forms said the 1st flushing water main flow.

Like this, the 1st flushing water main flow also can become the stable current of its flow trace, and collaborate partly to form strong current, so combine, can further improve reliability with low discharge discharging flushing water and minimizing flushing water total amount with the stabilizing of the 2nd flushing water main flow track.

In addition, said the 3rd discharge portion has:

The flushing water that said head race is guided discharges towards said ponding in the place ahead of said closet pelvic part one side, and make it current interflow with the flushing water of said the 2nd discharge portion, the 4th discharge portion that the flow direction of the flushing water of said the 2nd discharge portion is corrected to the said ponding water surface one side;

The flushing water that said head race is guided is with respect to two minutes center line about closet is discharged from an opposite side with said the 1st discharge portion, and make it and the current interflow of the flushing water of said the 2nd discharge portion after the flushing water of said the 4th discharge portion discharging is corrected, its flow direction is corrected once more to the said ponding water surface one side, and, the current of the flushing water of said the 2nd discharge portion after correcting as said the 2nd flushing water main flow, are made it to keep said ponding confluent relation and the 5th discharge portion of collaborating with said ponding with respect to said the 1st flushing water main flow.

In this occasion, as the 5th discharge portion, also can be, flushing water made it current with the flushing water of the 2nd discharge portion discharging are relative to be discharged to ground, make the current interflow of the flushing water of the flushing water of this discharging and the 2nd discharge portion, make the current of flushing water of the 2nd discharge portion and the 1st flushing water current almost parallel and on same direction of rotation, collaborate with ponding.

Like this, rectification to the 2nd flushing water main flow is to carry out from diagonal angle one side of closet the place ahead one side and the 1st flushing water main flow, therefore, can make that the track of the 2nd flushing water main flow after correcting is more stable, main flow almost parallel each other and the reliability to the interflow of same direction of rotation are improved, and the reliability that the flushing water total amount reduces further improves.

In addition, said head race is provided with the flushing water that said head race is guided in addition with respect to said the 1st～the 5th discharge portion and makes it the secondary discharge portion of discharging along said closet pelvic part Surface runoff ground; Make and to comprise that the flushing water from the flushing water of said secondary discharge portion discharging flows in the roughly whole zone on said closet pelvic part surface.

Like this, can make flushing water arrive the roughly whole zone on closet pelvic part surface.Therefore, can be conscientiously with pouring in the ponding attached to the toilet paper on pelvic part surface and dirt etc., improve the cleannes on pelvic part surface.

In addition, said closet pelvic part has:

Said the 1st flushing water main flow is stopped and guides its rotation, and the 1st pelvic part surrounding wall portion that limits of the rotary state of the flushing water after said the 1st flushing water main flow and said ponding collaborated;

Said the 2nd flushing water main flow is stopped and guides its restriction, and the 2nd pelvic part surrounding wall portion that limits of the rotary state of the flushing water after said the 2nd flushing water main flow and said ponding collaborated.

Like this, can make that the flow trace of the 1st, the 2nd flushing water main flow is more stable, therefore, main flow each other can be maintained conscientiously for almost parallel and to this ponding confluent relation of same direction of rotation as previously mentioned, and, can further improve the reliability that the flushing water total amount reduces.

In addition, said the 1st, the 2nd pelvic part surrounding wall portion make with ponding interflow after the flushing water rotary state there are differences, a side pelvic part surrounding wall portion makes that the helical pitch of rotating is bigger on the depth of accumulated water direction, the opposing party's pelvic part surrounding wall portion makes that the helical pitch of said rotation is less.In this occasion, also can be, the 2nd pelvic part surrounding wall portion makes that the helical pitch of said rotation of said the 2nd flushing water main flow is bigger, said the 1st pelvic part surrounding wall portion makes that the helical pitch of said rotation of said the 1st flushing water main flow is less.

Like this, not only can further improve the ponding pushing performance that depends on rotation that produces by the bigger eddy flow of helical pitch, and be sent to the bigger eddy flow of helical pitch after can dirt being concentrated with the less eddy flow of helical pitch and carry out the discharging of dirt.Therefore, even generation is the flushing water main flow of low discharge, also can keep the pushing performance.In other words,, can keep the pushing performance that rotation produces, can bring into play dirt reliably with this pushing performance and discharge ability (toilet stool washing ability) though be to discharge flushing water to seek the minimizing of flushing water total amount with low discharge.

In addition, the bottom of closet pelvic part is the mortar shape and forms, and therefore, the radius of gyration of the eddy flow that the trap opening towards the pelvic part bottom rotates diminishes gradually, and swirl strength increases gradually.Therefore, the pushing performance that above-mentioned eddy flow produced will further improve.

As the pelvic part surrounding wall portion that helical pitch be there are differences,

Said the 1st pelvic part surrounding wall portion also can be, have with the trap of the bottom that is opened on said closet pelvic part side guiding canopy portion that form with the state that said ponding is fenced up, that said the 1st flushing water main flow is stopped in opposite directions, and this guiding canopy portion is positioned on the height and position that roughly aligns with the ponding water surface of said ponding, makes said the 1st flushing water main flow with the less situation rotation of the helical pitch of said rotation.

In addition, said the 2nd pelvic part surrounding wall portion also can be, in the position that said the 2nd flushing water main flow is stopped and make it to collaborate with said ponding, has the big perisporium face of the more said guiding canopy of above-below direction updip gradient portion, so that said the 2nd flushing water main flow is with the bigger situation rotation of the helical pitch of said rotation at said ponding.

Like this, near the 1st flushing water main flow be subjected to leading stopping of canopy portion and the ponding water surface, be directed and roughly to horizontal rotation, so can produce the less eddy flow of helical pitch of rotation more reliably.The 2nd flushing water main flow is subjected to stopping of the bigger perisporium face of gradient, can produce the bigger eddy flow of helical pitch of rotation reliably owing to the existence of this gradient.Its result not only can further improve the above-mentioned pushing performance that is produced by eddy flow, and can conscientiously dirt be put together with the less eddy flow of helical pitch.

In this occasion, also can be the said perisporium face of said the 2nd pelvic part surrounding wall portion can make along with flushing water flow to said ponding and ratio that ponding water surface area when rising enlarges with respect to original area in about 40%.

Like this, under the guiding of the perisporium face of the 2nd pelvic part surrounding wall portion, the 2nd flushing water main flow will produce the bigger eddy flow of helical pitch more reliably in ponding, therefore, can further improve the above-mentioned pushing performance that is produced by eddy flow reliably.

In addition, if make the 2nd pelvic part surrounding wall portion the perisporium face at its vertical cross section in shape, the angle that forms between the peripheral wall surfaces with the ponding water surface and perisporium face is about the inclination of the steep like this gradient of 5～25 degree, then more helps producing the bigger eddy flow of helical pitch.

In addition, in order to realize the part of above-mentioned task at least, the 2nd lavatory pan of the present invention is that a kind of flushing water that the outside is supplied with discharges from the top of closet pelvic part, holds at the closet pelvic part to produce the lavatory pan of eddy flow with the flushing closet in the ponding that stays, it is characterized in that

It is two discharge portion that the diagonal position at center has the outer confession of discharging flushing water that this head race is seen in the central authorities with said ponding from the angle of overlooking closet, each this discharge portion makes said outer for flushing water and said ponding interflow, so that produce unidirectional rotation in said ponding.

Do so also can make from the current of the flushing water of each discharge portion discharging and interflow that ponding carries out to see over the ponding almost parallel ground that is clipped in the middle is carried out the eddy flow of the same direction of rotation of generation in ponding from the angle of overlooking closet.Therefore, this lavatory pan also can produce eddy flow equally reliably with stating the 1st lavatory pan in ponding, thereby has the advantage same with the 1st lavatory pan.

For the 2nd lavatory pan, also can adopt the various forms same with the 1st lavatory pan.

In addition, in order to realize the part of above-mentioned task at least, the 3rd lavatory pan of the present invention is that a kind of flushing water inflow closet pelvic part of outside supply that makes holds in the ponding that stays, it with the lavatory pan that said ponding is discharged from the siphon trap, be is characterized in that,

Said siphon trap has:

Have the trap opening that is opened on said closet pelvic part side, form riser culverts portion from this trap opening towards the pipeline of oblique upper,

Be connected with the upper end of this riser culverts portion and crooked, have a top duct portion on the weir, top that said water accumulation level is limited,

Be connected and downward decline duct portion of extending with this top duct portion, said decline duct portion has, to along with said outer for flushing water flow in the said ponding and cross said riser culverts portion and the weir, said top of said top duct portion and drop to flushing water in the said decline duct portion stop the pipeline canopy portion that makes the flushing water bounce-back, will the flushing water of this pipeline canopy portion place's bounce-back guide the downstream duct portion in downstream into and make that the pipeline area diminishes in the end of this downstream duct portion with flushing water to the footpath of the outfall guiding of the closet outside portion of contracting;

Said decline duct portion has a kind of like this decline pipeline shape, promptly, at the flushing water that said riser culverts portion is transported when said outfall is discharged, the flushing water that generation flows down crossing weir, said top is with stopping that said pipeline canopy portion carries out, the flow direction that makes the said flushing water that flows down changes to the said footpath flow direction that portion's one side changes that contracts, and the said flushing water that flows down the holding of portion place of contracting in said footpath stayed, thereby the portion place of contracting in said footpath forms sealing to the upstream side pipeline by flushing water, and, even still remaining the pipeline portions till from said top duct portion to said pipeline canopy portion have an air, hold the flushing water that stays the portion of contracting in said footpath and still can form water column till weir, said top, be in the state that said air pocket is enclosed in the duct portion of said top after said water column forms, the siphonage that makes flushing water to said closet pelvic part aspirate produces and can make the decline pipeline shape of this siphonage continuation.

As the 3rd lavatory pan of the present invention with above-mentioned formation, when outer when beginning to wash closet, cross pipeline canopy portion that flushing water that the weir, top of top duct portion flows down to the decline duct portion is lowered by duct portion from riser culverts portion and stop and rebound for flushing water flows into ponding.Contract in the flow direction radius vector of flushing water through the flushing water of like this bounce-back and further to flow down downstream after portion's one side changes, at this moment, be accompanied by in the decline duct portion that air is involved in and dirty along pipeline, and the dirty speed that is accompanied by the change flushing water of flow direction reduces, the footpath that the arrives downstream duct portion end in this state portion of contracting.Arrive the contract flushing water of portion of footpath and keep that air is involved in the state that comes and contract by the footpath and flow out from outfall after the portion,, stay owing to the pipeline area diminishes to hold in this portion of directly contracting.Through holding the flushing water that stays like this, its part flows out from outfall by the footpath portion of contracting.In this occasion, hold that above-mentioned dirty speed reduces when staying flushing water, thereby, cross the weir, top and fall the flow of the flushing water that the flow of the flushing water in the decline duct portion will flow out to outfall greater than the portion of contracting via the footpath, therefore, initial in the flushing beginning, the holding of portion's place's flushing water of directly contracting stayed and can be carried out simultaneously to the discharge of outfall.And footpath the holding of portion place flushing water of contracting stays the water yield along with flushing water continues to flow down and increase to the decline duct portion, and therefore, in the decline duct portion, the portion of contracting utilizes to hold and stays flushing water that the upstream side pipeline is sealed in the footpath.After like this forming sealing, along with after flushing water continue to flow down, the portion of contracting forms water column to the weir, top from the footpath, prevents that by this water column air from entering from the outlet opening outside.

In the rinse stage after forming sealing and water column with flushing water as mentioned above, above-mentioned established water column is circulated flushing water under the effect of the head when outlet opening falls in the duct portion of downstream, thereby produces the decompression phenomenon in trap.And, inflow still continuation during this decompression phenomenon of flowing through riser culverts portion and crossing the flushing water that top weir and desire flow into the decline duct portion, thereby can air not sucked in from riser culverts portion one side.Therefore,, the ponding water surface of closet pelvic part has difference in height between the portion because contracting with the footpath, the so-called siphonage that the flushing water that produces the closet pelvic part is aspirated, and up to because of till sucking the elimination of air siphonage, this siphonage will continue.Therefore, the dirt of closet pelvic part will be with ponding and is forced to suck the siphon trap and discharges for flushing water outward.

The flushing that forms at above-mentioned flushing water water column begins under the initial situation, state as preceding, the bounce-back, air that produces pipeline canopy portion place's flushing water of decline duct portion is by being involved in and the discharge of air after dirty, the pipeline canopy portion of pipeline under this bounce-back flushing water effect.In this occasion, undischarged air after the pipeline canopy portion owing to formed is realized the water column that seals, and therefore, this water column rises and the pipeline portions till accumulating in from the top duct portion to said pipeline canopy portion.Perhaps, ascending air accumulates in from the outstanding guide plate portion in weir, top.

The occasion that remains in less flushing water flushing closet of above-mentioned air obviously produces, and with a large amount of flushing waters carry out the flushing of closet and the existing closets of will the air in the trap pipeline all discharging in can not produce.Yet, as the present invention, even if remaining the pipeline portions till from the top duct portion to pipeline canopy portion as mentioned above have an air, by trying every possible means in shape at the decline pipeline, on basis, thereby make the formation of water column become to produce siphonage and make it to be continued the sealing of this air pocket.Therefore, can continue siphonage with a spot of flushing water.Siphonage one produces, and the air pocket that is enclosed in the duct portion of top will be involved in the flushing water that is sucked, but owing to till the weir, top, formed water column, thereby be not easy to discharge outside from outlet opening by water column.Therefore, be not easy to cause the water column fragmentation, help siphonage and continue because of the discharge of air pocket.

Even, therefore have following advantage owing to have air that siphonage is produced and continue in that the flushing beginning is initial remaining in a part of pipeline portions of siphon trap as mentioned above.

For existing lavatory pan with siphon trap, state as preceding, promptly initial when flowing in the ponding for flushing water outside to paying much attention to more like this in the flushing beginning, the air in the pipeline of siphon trap is all discharged outside the trap.Therefore, must make the flushing water of big flow from just continuing to flow at first to the closet pelvic part.

And as lavatory pan of the present invention, need from the siphon trap air not discharged at first in the flushing beginning, therefore, as long as make outer promptly enough from continuing to go on the little water yield at first for the inflow of flushing water in ponding.Therefore,, can reduce the head pressure of water tank, thereby can be correspondingly the height of flushing water water tank be reduced for the lavatory pan that adopts the flushing water water tank in order to supply with flushing water.Its result can realize the low dwarfing of closet, and can improve freedom of appearance design.

And,, supply the inflow of flushing water in ponding outside also can making from continuing with low discharge at first even the primary side pressure of supply water is lower as the lavatory pan of the flushing water of primary side pipe arrangements such as running water pipe directly being supplied with closet.Therefore, even because the laying situation of water supply pipe and precipitation situation or because weather and typical regional characters etc. are former thereby cause the lower area of primary side pressure of supply water, lavatory pan of the present invention also can be suitable for, versatility is improved.Even if lavatory pan of the present invention by reducing valve etc. is installed, also can be installed and used at an easy rate in the countries and regions of the higher pressure of supply water of regulation such as rules.

Have again, as in ponding, producing eddy flow flushing water is pressed into the lavatory pan of trap, for the flushing water that makes it in order to produce eddy flow to collaborate with ponding, can be enough as long as discharge with low discharge.That is, needn't make it to get final product and discharge flushing water to depend on the big flow of water discharging flushing water of big flow with the ponding interflow with the less flow of water of low discharge.Therefore, when producing eddy flow at the interflow that utilizes flushing water and ponding, by with the little flow of water (low discharge) discharging flushing water, the rotation that can prevent to be unprofitable to the disorder of eddy flow produces.Its result, the energy of the flushing water of discharging (flow of water) can not have the generation that is used for eddy flow lavishly, realizes the stable formation of eddy flow and the high efficiency that eddy flow is pressed into flushing water trap.

In addition, needn't therefore, can reduce the noise of following discharging flushing water and flushing water and ponding interflow and producing, the quietness when improving the flushing closet to depend on the big flow of water discharging flushing water of big flow.But also can prevent to cause that because of the big flow of water discharging flushing water accident splashes.

In order to realize the part of above-mentioned task at least, the 4th lavatory pan of the present invention is that a kind of flushing water inflow closet pelvic part of outside supply that makes holds in the ponding that stays, it with the lavatory pan that said ponding is discharged from the siphon trap, be is characterized in that,

Said siphon trap has:

Said decline duct portion has a kind of like this decline pipeline shape, promptly, at the flushing water that said riser culverts portion is transported when said outfall is discharged, the flushing water that generation flows down crossing weir, said top is with stopping that said pipeline canopy portion carries out, the flow direction that makes the said flushing water that flows down changes to the said footpath flow direction that portion's one side changes that contracts, and the said flushing water that flows down the holding of portion place of contracting in said footpath stayed, thereby portion place forms sealing to the upstream side pipeline by flushing water by contracting in said footpath, be present in the flushing water extruding that the air in the duct portion of said top risen and come and flow in the pipeline after the duct portion of said top from said riser culverts portion, and the downstream that this leaked-in air is enclosed in said top duct portion made it to return said top duct portion side, make and contract said footpath the portion place holds that the flushing water that stays forms until the water column till the weir, said top, and the siphonage that makes flushing water to said closet pelvic part the aspirate decline pipeline shape that produces and this siphonage is continued.

For this 4th lavatory pan of the present invention, being the imagination flushing water crosses the weir, top of top duct portion and when falling the decline duct portion from riser culverts portion, the air of top duct portion is subjected to the extruding of this flushing water and flows in the pipeline after the duct portion of top, in this different with the 3rd lavatory pan of foregoing invention.That is to say, though be to supply with flushing water with low discharge, because riser culverts area and head tube road surface are long-pending etc., the air that can make the top duct portion is squeezed and flows in the pipeline after the duct portion of top, therefore, above-mentioned idea is realized in the following manner.

Be subjected to flushing water extruding and leaked-in air, its part is same with above-mentioned the 3rd lavatory pan, be involved in to arrive the footpath and contract in the flushing water of portion and flow out to outfall from the footpath portion of contracting, and undischarged air rises in pipeline.When such air rises to the top duct portion always, can cause the water column disjunction, promptly cause siphonage to disappear.But, in the present invention, in the downstream of top duct portion this air is sealed and makes it can not mortgage originator duct portion side.Therefore, the 4th lavatory pan of this invention also can obtain and the same effect of above-mentioned the 3rd invention.

The the 3rd, the 4th lavatory pan of the present invention for having above-mentioned formation also can adopt following various forms.

That is, said decline duct portion has a kind of like this decline pipeline shape,, is controlled in about 50～100 liters/minute said outer inflow of flushing water in said ponding, decline pipeline shape that can make said siphonage produce and continue of supplying with respect to flow that is.

Like this, self-evident with the flow that existing flow is close substantially, even, also can accomplish to force suction dirt, ponding and flushing water with siphonage less than this flow.

In addition, said top duct portion has a kind of like this pipeline shape, that is, the pipeline portions that will be connected with said decline duct portion falls into the flushing water of said decline duct portion to cross the weir, top current are the pipeline shape that the boundary marks off the remaining zone of air.

Like this, can make the remaining zone of air be fixing pipeline portions, therefore, can effectively air be involved in the current of the flushing water that falls into said decline duct portion and discharge, help sealing with the formation of water column, the generation of siphonage that depends on this and the ponding of closet pelvic part and discharge with effective suction of dirt to the outside.

In addition, said top duct portion couples together said riser culverts portion and said decline duct portion with the big cross-sectional area of pipeline cross-sectional area than said riser culverts portion.

Like this, can guarantee to seal the zone of air pocket conscientiously, thereby can more effectively realize being involved in and exhaust air with the current of the flushing water that falls into said decline duct portion, therefore, help effective suction discharging of the ponding and the dirt of the formation of above-mentioned sealing and water column, the generation of siphonage that depends on this and closet pelvic part.Though, having the cross-sectional area big than the pipeline cross-sectional area of riser culverts portion with the top duct portion is advisable, but dwindle factors such as situation according to outer flow and the contract area of portion of footpath when flowing into ponding for flushing water, it is identical substantially or less than its cross-sectional area also can to make head tube road portion have a pipeline cross-sectional area with riser culverts portion.Thus, can make the holding to stay expeditiously and carry out of flushing water in the decline duct portion.

In addition, said decline duct portion has a kind of like this decline pipeline shape, that is, contract the portion to said footpath from said pipeline canopy portion, and the area of pipeline section is varied down at least the area with the pipeline cross-sectional area same degree of said riser culverts portion gradually.

In the occasion that area changes as mentioned above gradually, can make the section configuration of said pipeline section on the closet left and right directions, directly contracting of said decline duct portion to the pipeline centerline side.

Like this, crossing the flushing water that rebounds in the pipeline canopy portion of decline duct portion on the weir, top seals the part of decline pipeline in early days, and then can be conscientiously hold and stay in the footpath portion of contracting, therefore, can improve the reliability that the siphonage of the formation of the above-mentioned sealing that depends on air and discharge and water column produces and continues.That is, can force suction to dirt etc. reliably, thereby improve the emissions performance with siphonage.

And, if the pipeline section of decline duct portion is made on the closet left and right directions in the section configuration that pipeline center line one side directly contracts, take following form, then have with below the explanation advantage.

On the basis outside the above-mentioned section configuration, said decline duct portion has can make the flushing water crossing weir, above-mentioned top and fall into be drawn towards the contract said decline pipeline of portion of said footpath to said closet pelvic part one side bounce-back,

The said footpath portion of contracting has the said flushing water that is directed in the canopy portion that said closet pelvic part side stops, guides this flushing water into said outfall after stopping with this canopy portion.

Around closet, there are clubs such as used for example cotton rod and match easily, these clubs are fallen in the closet sometimes by mistake, are mixed in and flow into trap in the flushing water.This club arrives the decline duct portion with flushing water, and the flushing water that falls into crossing the weir, top flows down to bounce-back of closet pelvic part side and the radius vector portion of contracting, and afterwards, the canopy portion of the portion of contracting in the footpath is subjected to stopping that the back arrives outfall.

Because the pipeline section of decline duct portion directly contracts to pipeline center line one side on the closet left and right directions, therefore, the club that passes through in the duct portion that descending, its attitude of passing through will be by this pipeline section levelling.Promptly, as club, can only with the length direction of rod and the length direction of pipeline section (closet fore-and-aft direction) attitude unanimous on the whole or, the attitude of intersecting with it from the flow direction (falling direction) of flushing water with the length direction with respect to length direction (closet fore-and-aft direction) rod of pipeline section falls the pipeline.Therefore, the club that flows down with such attitude, when closet pelvic part side is bounced, the length direction that is rod and flushing water contract the direction of canopy portion one side flow of portion substantially one along the canopy portion of ground towards the portion of directly contracting towards the footpath.Also can rebound at this canopy portion place's club, therefore, after canopy portion, for club, flushing water will make that the length direction of rod is unanimous on the whole with the flushing water flow direction towards outfall that flows to thereafter.Be in the club of this situation, will enter frontward in this outfall with the end on the length direction towards outfall.Therefore, can avoid club to take place effectively in the jammed phenomenon of portion that directly contracts.

In addition, hold in the ponding that stays in order to make the outside flushing water of supplying with flow into the closet pelvic part, also can be formed as described above the 1st, the 2nd flushing water main flow in ponding, producing eddy flow, or make it to possess closet pelvic part with the perisporium shape that can produce this eddy flow effectively.

Like this, can improve the pushing efficient that depends on above-mentioned eddy flow, and except the above-mentioned effect that can obtain to produce therefrom, can also obtain because the effect that siphonage is produced and continues to be brought under the remaining situation that air arranged.

In addition, in order to realize the part of above-mentioned task at least, the 5th lavatory pan of the present invention is a kind ofly to hold the closet pelvic part that stays ponding by having, be used for closet body that said closet pelvic part is supported, produce the siphon trap pipeline of siphonage when discharging dirt, this siphon trap pipeline is from the trap opening of the bottom sides that the is opened on said closet pelvic part riser culverts portion towards oblique upper; Be connected with the upper end of this riser culverts portion and form dog leg piping, have the top duct portion on the weir, top that the water level to said ponding limits; And be connected with this top duct portion and lavatory pan that the decline duct portion of extending downwards forms, it is characterized in that,

In the dog leg piping of said top duct portion with the wall portion of weir, said top channel wall in opposite directions on from the connecting portion of above-mentioned riser culverts portion to connecting portion that said decline duct portion is connected till the said wall portion of set scope, under the blank state before closet burns till, be that blank with said siphon trap pipeline remaining except said wall portion and said closet pelvic part and said closet body is split

The blank of said wall portion engaged with the blank of said remaining said siphon trap pipeline and will burn till after the shutoff of said siphon trap pipeline.

Have in the 5th lavatory pan of the present invention of above-mentioned formation, under the blank state before burning till, the connecting portion of riser culverts portion to connecting portion that the decline duct portion is connected between, do not exist in the dog leg piping of top duct portion of siphon trap pipeline as with the wall portion of the set scope of weir, top channel wall in opposite directions.Therefore, do not exist and this corresponding part of wall portion, thereby be used for forming the inwall of riser culverts portion and the mould on weir, top can be installed on other the mould.Therefore, can be with the black skin of the side that closely contacts with die face and pile up internal face and weir, top wall as riser culverts portion, thereby, can make these positions have the inwall of no concave-convex, can form and have outstanding weir, top of waiting part in pipeline.And, the blank of wall portion is engaged with siphon trap pipeline blank and this pipeline shutoff is become continuous siphon trap pipeline, burn till afterwards.As the mould that is used for forming weir, above-mentioned top etc.,,, therefore can realize the variation of siphon trap pipeline shape because the degree of freedom of mold shape improves although needing being subjected to be installed in restriction on other mould with it.

In addition, be intended to realize at least the lavatory pan of the part of above-mentioned task for manufacturing, manufacture method of the present invention is that a kind of manufacturing has and holds the closet pelvic part that stays ponding, be used for closet body that said closet pelvic part is supported, and the siphon trap pipeline that when discharging dirt, produces siphonage, this siphon trap route is from the trap opening of the bottom sides that the is opened on said closet pelvic part riser culverts portion towards oblique upper, be connected with the upper end of this riser culverts portion and form the top duct portion with weir, top that the water level to said ponding limits of dog leg piping, and be connected with this top duct portion and the manufacture method of the formed lavatory pan of decline duct portion that extends downwards, it is characterized in that having following operation:

Become in the dog leg piping with said top duct portion in the wall portion with weir, said top channel wall in opposite directions, from the connecting portion of above-mentioned riser culverts portion to connecting portion that said decline duct portion is connected till the wall portion blank of said wall portion of set scope with the operation (1) of die forming

Will be except said wall portion remaining said siphon trap pipeline and said closet pelvic part and said closet body all-in-one-piece closet blank be with the operation (2) of die forming,

The blank of said wall portion engaged with the blank of said closet and with the shutoff of said siphon trap pipeline, said siphon trap pipeline is become the operation (3) of burning till under the consecutive state in said riser culverts portion and said top duct portion and said decline duct portion;

Said operation (2) has following operation:

Prepare: have with the base wall shape of the base wall shape of said closet pelvic part and said closet body with remove said wall portion the bed die of the recess shapes that the outline wall shape of said decline duct portion conforms in the said siphon trap pipeline that is left,

Side form with the recess shapes that conforms to the side walls shape of said closet body,

Have mould in the pelvic part of the protuberance shape that conforms to the internal perisporium shape of said closet pelvic part,

Have the outer contour shape that conforms to the shape on the weir, said top of the pipeline inner wall shape of the said riser culverts portion of said siphon trap pipeline and said top duct portion, the operation that can be assembled in the branch pattern in the mould in the said pelvic part, this minute, pattern was in being assembled in said pelvic part in the mould time, the part that conforms to the bottom interior wall of said closet pelvic part in the said protuberance shape of mould in said pelvic part engages, with the opening of this joint as said trap opening

Each mould matched moulds with this preparation, said recess shapes and protuberance shape with each mould, formation is intended to form the operation of die cavity that said siphon trap pipeline remaining except that said wall portion and said closet pelvic part and said closet body are the said closet blank of one

In said die cavity, inject slurry, through making that slurry is deposited on said each mould, plasma discharge, drying, the demoulding, obtain the operation of said closet blank.

According to lavatory pan manufacture method of the present invention with above-mentioned formation, become the wall portion with top weir channel wall in opposite directions in the dog leg piping of top duct portion, under its blank state, with other closet position be split.Therefore, when forming the closet blank, do not exist and this corresponding part of wall portion, thereby the somatotype module that is used for forming the inwall of riser culverts portion and weir, top can be installed in the pelvic part in the mould, and can be with the black skin of the side of on the profile of this minute pattern, piling up in intimate contact internal face and weir, top wall as riser culverts portion.Therefore, as mentioned above, this minute the degree of freedom of mold shape of pattern improve, thereby can produce the diversified lavatory pan of siphon trap pipeline shape at an easy rate.In this occasion, with the joint of mould in minute pattern and the pelvic part opening, so can form the trap opening with high dimension precision as the trap opening.

Lavatory pan of the present invention and manufacture method thereof with above-mentioned formation also can adopt following various forms.

Promptly, the terminal duct portion that is connected with the outfall of closet outside as end at siphon trap pipeline, under its blank state, with lavatory pan be split, the blank of this end duct portion is bonded on the blank state siphon trap pipeline end and burn till.And, as this end duct portion, when forming its blank, form blank in order to adapt to the different occasion of distance between outfall and the closet rear end in advance with multiple ready shape, therefrom select the blank that adapts with said distance, the bonding station of this blank is adjusted according to above-mentioned distance.Like this, under the general situation of the closet body mold with siphon trap pipeline,, therefore, can reduce mould manufacturing and management costs thereof as long as be ready to make the necessary mould of terminal duct portion.And, through the joint of the blank of terminal duct portion and burning till and the closet that obtains afterwards, can with the closet itself that porcelain is made deacclimatize above-mentioned distance as one of outfall specifications parameter, promptly from the closet wall to the center to center distance the outfall center.

In this occasion, as terminal duct portion, also can be with outfall in opposite directions, and by extruding be placed in lip ring around this outfall to sealing around this outfall to the terminal duct portion of outfall draining.Like this, to the outfall draining time, can itself avoid the leakage of draining with terminal duct portion, at this moment, owing to do not need through the Connection Block of processing such as bending etc., so very easy.

In addition, as terminal duct portion, also can be with outfall in opposite directions, and by in the terminal duct portion that is connected with outfall between outfall and draining connector between the terminal duct portion.Like this, to the outfall draining time, can prevent the leakage of draining by the draining connector.And, as this draining Connection Block,, thereby make the straight tube shape and get final product as long as outfall and the terminal duct portion that has in opposite directions relation are coupled together, dying because of shape tube list also is easy to handle.

In addition, also terminal duct portion can be made and to insert outfall and set, like this, make with porcelain, also can carry out the installation of this closet by terminal duct portion is inserted outfall although comprise the whole closet of terminal duct portion.Therefore, the operation of installing in advance, make Connection Block and the equipment management of Connection Block etc. all can be omitted, and help reducing cost.In addition, because terminal duct portion can be inserted outfall and set, therefore, make the specification that can adapt to outfall for porcelain though have the siphon trap pipeline of this end duct portion.

As mentioned above, because terminal duct portion is to form separately, so its blank can use punch and die to form, its external diameter shape limits with die, and the internal diameter shape limits with punch.Therefore, terminal duct portion can be made the variform shape of inside and outside wall, for example make outer wall and be cylindrical shape and inwall for oval.

In addition, the 5th lavatory pan of the present invention be a kind of have hold the closet pelvic part that stays ponding, be used for closet body that said closet pelvic part is supported and the lavatory pan that when discharging dirt, produces the siphon trap pipeline of siphonage, it is characterized in that,

Have the end that is positioned at said siphon trap pipeline, with the terminal duct portion that the outfall of closet outside is connected, said terminal duct portion is used for by this end duct portion said decline duct portion being connected with said outfall,

Said terminal duct portion under the blank state before closet burns till, is that blank with said siphon trap pipeline and said closet pelvic part and said closet body is split,

With the blank of said terminal duct portion with burn till after the end of the said siphon trap pipeline of blank state engages.

Like this, even the inwall of riser culverts portion and weir, top etc. do not need to have the lavatory pan of shape facility, also can be by preparing the terminal duct portion of blank state in addition, the closet itself that obtains to make with porcelain adapts to a kind of like this and aforementioned same effect of outfall.

The simple declaration of accompanying drawing

Fig. 1 be to the lavatory pan 10 of embodiment from it face cut key diagram open to describe.

Fig. 2 is the key diagram of lavatory pan 10 so that its left view of cutting open from the central authorities of fore-and-aft direction is showed to Fig. 1.

Fig. 3 is the key diagram of being showed with its right view.

Fig. 4 is with near the key diagram of partly cut-away the to describe left central part weep hole 43 of ring shown in Figure 2.

Fig. 5 is to the key diagram that dynamically describes from the flushing water of root the 1st weep hole 41 and root the 2nd weep hole 42 dischargings.

Fig. 6 corrects the key diagram that describes with the discharging of weep hole 48 and right median weep hole 47 with weep hole 45, the 44, the 2nd rectification of ring front weep hole to flushing water from left central authorities weep hole 43 and the 1st, Fig. 6 (a) is the key diagram that dynamically describes of supposition flushing water flushing water when each weep hole discharges separately, and Fig. 6 (b) is the key diagram that dynamically describes of the flushing water that produces from each weep hole discharging along with flushing water.

Fig. 7 is the key diagram that dynamically describes in a schematic way to the flushing water that produces when all weep holes discharge flushing waters.

Fig. 8 is the key diagram that the situation when supposition is produced this flushing water dynamic each main flow S1, S2 and collaborates with ponding RS separately describes in a schematic way.

Fig. 9 is the dynamic key diagram that describes in a schematic way of eddy flow in ponding when two main flow S1, S2 collaborates with ponding RS simultaneously.

Figure 10 collaborates lavatory pan 10 with locate the key diagram that near 10-10, Fig. 1 is showed to sectional view with the 2nd main flow S2 and ponding.

Figure 11 is used for the pipeline of siphon trap 20 is constituted the key diagram that describes, show to sectional view with the 11-11 of Fig. 3.

Figure 12 is the key diagram that decline duct portion 28 is showed to sectional view with the 12-12 of Fig. 3 and Figure 11.

Figure 13 is the key diagram that decline duct portion 28 is showed to sectional view with the 13-13 of Fig. 3 and Figure 11.

Figure 14 is the key diagram that decline duct portion 28 is showed to sectional view with the 14-14 of Fig. 3 and Figure 11.

Figure 15 is the key diagram that dynamically describes to flushing beginning initial stage flushing water.

Figure 16 is held flushing water to stay the key diagram that describes in the situation of terminal duct portion 74.

Figure 17 is the key diagram that the situation that siphonage takes place is described.

Figure 18 is the key diagram that the state that is provided with of the U-shaped pipe of under the remaining state of air the situation of the generation of siphonage and continuation being confirmed is showed.

Figure 19 is the curve map of the liquid level change of expression U-shaped pipe.

Figure 20 is the stereogram that the situation of assembling flushing water waterworks 100 on lavatory pan 10 is showed by broken section.

Figure 21 is that periphery to these flushing water waterworks 100 is by analysing and observe the key diagram that describes.

Figure 22 is the lavatory pan that compares at the lavatory pan 10 with present embodiment, just to the feedwater of closet pelvic part, compare and the key diagram that describes to the inflow of pelvic part, each flow that flushing water is discharged from trap.

Figure 23 is the key diagram that the result of evaluation test that the lavatory pan 10 of present embodiment and comparative example closet are carried out shows.

Figure 24 is the key diagram that the closet of the present embodiment that does not have the siphon trap is showed.

Figure 25 is the key diagram of being showed with regard to the result that the pushing efficient of eddy flow compares embodiment goods and comparative example goods.

Figure 26 is the key diagram that the lavatory pan 10 as modified example of having assembled the flushing water water-storing tank is described.

Figure 27 is the key diagram that the blank state when making lavatory pan 10 describes.

Figure 28 is the key diagram that terminal pipeline blank MK is described with the situation of die forming, Figure 28 (a) is the key diagram that the situation to matched moulds external genitalia mould 200 and formpiston 210 describes, Figure 28 (b) is the key diagram that the situation to the die cavity MKK behind these two mould matched moulds describes, and Figure 28 (c) is the key diagram that to sectional view the situation of die cavity MKK is described with the x-x of Figure 28 (b).

Figure 29 is the key diagram that the shaping situation when terminal duct portion is shaped with the closet blank that comprises siphon trap pipeline compares, and Figure 29 (a) is the key diagram that situation is showed that adheres to the blank of terminal duct portion and siphon trap pipeline.Figure 29 (b) is with the x-x of Figure 29 (a) key diagram that adheres to situation to the terminal duct portion blank of cross sectional view show.

Figure 30 is the key diagram that employed mould describes during with die forming to top duct portion blank TK.

Figure 31 is the key diagram that this top duct portion blank TK is described with the situation of die forming.

Figure 32 is the key diagram that ring blank RK is described with the situation of die forming.

Figure 33 is the key diagram that closet body blank BK is described with the situation of die forming.

Figure 34 is the approximate three-dimensional map of this closet body blank BK employed bed die 250 during with die forming.

Figure 35 is the key diagram that the section when the 34-34 line is cut open among Figure 34 is showed.

Figure 36 is closet body blank BK approximate three-dimensional map of mould 260 in the employed pelvic part during with die forming.

Figure 37 is the approximate three-dimensional map of closet body blank BK employed minute pattern 270 during with die forming.

Figure 38 is the approximate three-dimensional map of closet body blank BK side form 280 of an employed side during with die forming.

Figure 39 be equipment in the lavatory pan 10 is put portion's 11 peripheries closet body blank BK during with die forming situation and when being shaped employed in the key diagram showed of part type mould.

Figure 40 is the key diagram that the lavatory pan 300 to other embodiment describes.

Figure 41 is to the key diagram that describes with the corresponding situation of various center to center distance, and Figure 41 (a), Figure 41 (b) and Figure 41 (c) are the key diagrams of being showed respectively corresponding to the situation of center to center distance 200, center to center distance 305, center to center distance 405.

Figure 42 is the key diagram that the situation that terminal duct portion 74 is connected with outfall is described, Figure 42 (a) is the key diagram that the method that adopts draining connector HSC is described, and Figure 42 (b) is the key diagram that the method that adopts drainage flange dish HSF is described.

Figure 43 does with riser culverts portion 24 same degree so that the air of top duct portion 30 flows into the key diagram that the lavatory pan of its pipeline is afterwards showed to the pipeline area of top duct portion 26.

Figure 44 is to be key diagram that the diagonal position at center to ponding discharging with the lavatory pan of the modified example that produce eddy flow showed with ponding central authorities to the flushing water of the 1st main flow S1, the 2nd main flow S2 when overlooking.

The best mode that carries out an invention

Below, the form of implementation of lavatory pan involved in the present invention is described in conjunction with the embodiments.Fig. 1 is that lavatory pan 10 to embodiment is with the key diagram of cutting open above it and describing, Fig. 2 is the key diagram that the left view that the lavatory pan 10 of Fig. 1 is cut open with the central authorities from fore-and-aft direction is showed, Fig. 3 is the key diagram of showing with its right view, and Fig. 4 is the key diagram that near the partly cut-away central part of ring shown in Figure 2 is described.The lavatory pan 10 of the 1st embodiment as described later, the pipeline shape at each position of its siphon trap pipeline has feature, even if the flushing water of low discharge feedwater also can make siphonage produce and continue.At first, the integral body formation with regard to closet describes.

As shown in these figures, lavatory pan 10 has closet pelvic part 12, with its upper limb as ring 14.Ring 14 forms with the state that closet pelvic part 12 is fenced up, and its inside has the ring head race 16 of hollow.Ring head race 16 is connected with flushing water water supply road 18 at the closet rear side.

The rear side of closet pelvic part 12 is that the equipment that puts flushing water waterworks described later puts portion 11, and flushing water water supply road 18 is accepted the flushing water feedwater by connecting hole 19 from the flushing water waterworks that are received within this equipment and put in the portion 11.To the flushing water that flushing water water supply road 18 is supplied with, as shown in Figure 1, direction enters in the ring head race 16 to the left and right, and is drawn towards the upper limb periphery of closet pelvic part 12.

Closet pelvic part 12 is connected with siphon trap 20 at its 13 places, pelvic part bottom.Siphon trap 20 has: in the face of the trap inlet 22 of pelvic part bottom 13 openings; From the riser culverts portion 24 that this trap inlet 22 forms towards the pipeline of closet rear side oblique upper; Be connected with the upper end of riser culverts portion 24 and curved top portion duct portion 26 downwards; Be connected and downward decline duct portion 28 of extending with top duct portion 26.Top duct portion 26 has to the weir, top 30 of decline duct portion 28 1 lateral bending songs at the connecting portion place that is connected with riser culverts portion 24, utilizes the water level of this weir, top ponding RS that stays that 30 pairs of closet pelvic parts 12 hold to limit.About the pipeline shape of this siphon trap 20, will narrate in the back.

As ring 14, on its ring head race 16, except having in closet left side shown in Figure 1 root the 1st weep hole 41, root the 2nd weep hole 42, the left central authorities weep hole 43, between this left central authorities' weep hole 43 and ring front weep hole 44, have the 1st of porous and correct, the auxiliary weep hole 46 that between left central authorities' weep hole 43 and root the 2nd weep hole 42, has porous with weep hole 45.In addition, ring 14 has right median weep hole 47 on the closet right side, between this right median weep hole 47 and ring front weep hole 44, have the 2nd of porous and correct, between the connecting portion on right median weep hole 47 and flushing water water supply road 18, have the 4th of porous and correct with weep hole 50 and auxiliary weep hole 51 with weep hole the 48, the 3rd rectification weep hole 49.

Root the 1st weep hole 41 and root the 2nd weep hole 42 are formed at the bottom of ring head race 16, and as shown in the figure, (in the present embodiment, by wide * long size, root the 1st weep hole 41 is 12 * 43mm, and root the 2nd weep hole 42 is 13 * 35mm) for long hole shape.Auxiliary weep hole 46 and the 1st is corrected and is used weep hole 45, the 44, the 2nd rectification of ring front weep hole to correct with weep hole 49, right median weep hole the 47, the 4th rectification weep hole 50 and auxiliary weep hole 51 with weep hole the 48, the 3rd, is formed at the bottom of ring head race 16 separately with the shape that is roughly circular hole.In this occasion, the aperture of above-mentioned weep hole is that auxiliary weep hole 46 and auxiliary weep hole 51 are about 4mm in this form of implementation, the 1st rectification is about 13mm with weep hole 45, ring front weep hole 44 and the 2nd is corrected and is about 10mm with weep hole 48, the 3rd rectification is corrected with weep hole 49 and the 4th and is about 5mm with weep hole 50, and right median weep hole 47 is about 16mm.

The speed that flow determined (flow velocity) of flushing water to provide by the flushing water waterworks of ring head race 16 is provided, pass through from ring head race 16 along the head race path, when arriving each weep hole place, has the corresponding directionality in weep hole position with ring head race ring week.Therefore, above-mentioned each weep hole discharges along the surface of closet pelvic part 12 flushing water according to directionality illustrated in Figure 1, that flushing water had to pelvic part bottom 13.

On ring head race 16, the about central part about closet is formed with from the left protrusion 52 of head race bottom heave and right-hand protrusion 53.These two protrusions are divided into the bigger roomy head race 16a of the head race cross-sectional area of flushing water flow direction upstream side and the less narrow and small head race 16b of head race cross-sectional area in downstream with ring head race 16.Therefore, the water yield of the flushing water that passes through from roomy head race 16a increases, and what flow through from narrow and small head race 16b is flushing water through left and right sides protrusion rectification.

During from above-mentioned each weep hole discharging flushing water such as root the 1st weep hole 41, as root the 1st weep hole 41 and root the 2nd weep hole 42, the long hole shape that is shaped as owing to the hole, and be weep hole and the close flushing water water supply road 18 that is arranged in roomy head race 16a, therefore, compare with other weep hole, with big volume exhaust flushing water.And correct with weep hole 45, right median weep hole 47, ring front weep hole 44 and the 2nd rectification weep hole 48 as the 1st, rectification by narrow and small head race 16b, with the directionality stable status discharging flushing water of discharged flushing water, the discharge value of this moment is relevant with the aperture.

As shown in Figure 4, left central authorities weep hole 43 is the aperture formation of sentencing about 16mm at left protrusion 52, and its opening direction is consistent with the flushing water water flowing direction of roomy head race 16a.Therefore, move ahead from the flushing water of this left central authorities weep hole 43 dischargings from this left central authorities weep hole 43 always and be introduced to the upper limb perisporium 55 of the closet pelvic part 12 of ring 14 lower ends, its trajectory of discharge is shown in the trajectory of discharge TS of Fig. 2 and Fig. 3.In this occasion, ring 14 is in closet pelvic part 12 sides of narrow and small head race 16b,, fence up to having sagging board 56 the closet front side from left protrusion 52 with the bottom 57 of sagging board 56 and narrow and small head race 16b and upper limb perisporium 55 front region with left central authorities weep hole 43.Therefore, left central authorities weep hole 43 discharges flushing water with very strong directionality and convergence according to above-mentioned trajectory of discharge TS.

Below, dynamically the describing of the flushing water to from discharging flushing waters such as above-mentioned root the 1st weep holes 41 time.Fig. 5 is to the key diagram that dynamically describes from the flushing water of root the 1st weep hole 41 and root the 2nd weep hole 42 dischargings, Fig. 6 corrects the key diagram that describes with the discharging of weep hole 48 and right median weep hole 47 with weep hole 45, the 44, the 2nd rectification of ring front weep hole to flushing water from left central authorities weep hole 43 and the 1st, Fig. 6 (a) is the key diagram that dynamically describes to the flushing water of supposition flushing water when each weep hole discharges separately, and Fig. 6 (b) is the key diagram that dynamically describes of the flushing water that produces from each weep hole discharging of flushing water.Fig. 7 is the key diagram that dynamically describes in a schematic way of flushing water that flushing water is produced during from the discharging of all weep holes, Fig. 8 is the key diagram that the situation when supposition is produced dynamic each main flow of this flushing water separately with ponding RS interflow describes in a schematic way, and Fig. 9 is the dynamic key diagram that describes in a schematic way of eddy flow in ponding when two main flows are collaborated with ponding RS simultaneously.

As Fig. 1 and shown in Figure 5, root the 1st weep hole 41 and root the 2nd weep hole 42, it forms the bottom that the position is positioned at the closet rear side and is opened on roomy head race 16a.Therefore, these two weep holes discharge flushing water towards closet the place ahead from oblique upper facing to ponding RS.In this occasion form because two weep holes are long hole shape separately, therefore with flushing water with the face of broad and it is discharged along with long hole shape with expanding.And, because these two adjacent formation of weep hole, make flushing water current interflow after the discharging, therefore,, can form main flow (the 1st main flow S1) with directionality accurately and very strong flow of water by this interflow, the 1st main flow S1 and ponding RS collaborate.The 1st main flow S1, from above-mentioned weep hole position along the flushing water emission direction with respect to ponding RS, the closet left side vertical-depth when overlooking as shown in the figure collaborates with it to oblique right front.In addition, the 1st main flow S1 is by from the flushing water current interflow of two weep holes discharging and form, and therefore, collaborates along stable track and ponding RS.From above-mentioned two weep holes discharging and with the current and ponding RS interflow of the irrelevant flushing water of the formation of the 1st main flow S1 as the 1st main flow S1 both sides, to the 1st main flow S1 the surface of the closet pelvic part 12 that can not reach wash away.Also identical therewith from the flushing water of auxiliary weep hole 46 dischargings.

The flushing water that left central authorities weep hole 43 will be introduced in the ring head race 16 discharges from a side (closet left side specifically) identical with root the 1st weep hole 41 and root the 2nd weep hole 42.Pai Fang flushing water is shown in Fig. 6 (a) like this, according to circumferentially rotating along upper limb perisporium 55 (with reference to Fig. 4), state trajectory of discharge TS and flow.Yet when this left central authorities weep hole 43 discharged flushing waters, the 1st rectification was corrected with weep hole 48 and right median weep hole 47 with weep hole 45 or ring front weep hole the 44, the 2nd and is also being discharged flushing water.Intersect with trajectory of discharge TS separately from the flushing water of these weep holes discharging from the flushing water of left central authorities weep hole 43 dischargings.Therefore, flushing water current with respect to trajectory of discharge TS, in the closet front side, from the 1st correcting flushing water, correcting with the flushing water of weep hole 48 dischargings and from the 3rd from the flushing water of ring front weep hole 44 dischargings, from the 2nd and correct with the flushing water of weep hole 49 dischargings interflow with it successively with weep hole 45 dischargings.In addition, on the closet right side of left central authorities weep hole 43 opposite sides, in the current of the flushing water of trajectory of discharge TS, collaborate with it from the flushing water of right median weep hole 47 dischargings with from the 4th flushing water of correcting with weep hole 50 dischargings.

The above-mentioned interflow of flushing water, when the flushing water current of trajectory of discharge TS are corrected by the interflow, make the flushing water current of trajectory of discharge TS become by the interflow and have the main flow (the 2nd main flow S2) of directionality and the powerful flow of water accurately, the 2nd main flow S2 and ponding RS collaborate.The 2nd main flow S2 is the flushing water current that flow with respect to according to the trajectory of discharge TS along 55 ring weeks of upper limb perisporium, in the closet front side, the closet right side collaborates and correct and form, therefore, with respect to ponding RS, collaborate with it towards oblique left back the closet right front when overlooking shown in Fig. 6 (b).As the 2nd main flow S2, be to correct with the flushing water of a plurality of weep holes dischargings such as weep hole 45 through the interflow with correct and form from the 1st, therefore, collaborate along stable track and ponding RS; When collaborating with ponding, as Fig. 6 (b) and shown in Figure 7, see over from the angle of overlooking closet, be sandwich ponding RS and keep the relation of almost parallel with the 1st main flow S1, along with the interflow of two main flows, in ponding RS, produce the eddy flow of same direction of rotation.Correct with weep hole 50 as the 4th of auxiliary weep hole 51 and this weep hole side, the surface (closet rear side surface) of the closet pelvic part 12 that can not reach the 2nd main flow S2 institute is washed away.

As mentioned above, the two has the relation of seeing the past tense almost parallel and making the eddy flow of the same direction of rotation of generation the ponding RS from the angle of overlooking closet with respect to ponding RS the 1st main flow S1 and the 2nd main flow S2, therefore, in the lavatory pan 10 of present embodiment, each main flow is when making ponding RS produce eddy flow, and main flow each other can not upset the direction of rotation of eddy flow mutually.Therefore, its rotation can be under the situation that can not upset eddy flow, impelled,, thus, the efficient of eddy flow pushing ponding can be improved so the energy (flow of water) of the flushing water of discharging can not have the generation that is used for eddy flow lavishly.To narrate in the back about this effect.

Below, just be intended to realize that the formation interflow, the duct portion inwall of above-mentioned main flow describes.Figure 10 is the key diagram that near the 10-10 position that lavatory pan 10 is collaborated with the 2nd main flow S2 and ponding, Fig. 1 is showed to sectional view.Extremely shown in Figure 3 as this Figure 10 and Fig. 1, in the lavatory pan 10 of present embodiment, the closet front side inwall of closet pelvic part 12 is made of the upper limb perisporium 55 of ring 14 belows, the slow rake 60 that is attached thereto continuous inclination, the lower end canopy portion 62 etc. of tilting bigger rake 61 and slowing down inclination, and this lower end canopy portion 62 is arranged near the water surface of ponding RS.62 couples the 1st main flow S1 of this lower end canopy portion stop and guide its rotation, simultaneously, make that the rotation along with the 1st main flow S1 flushing water of generation with ponding RS interflow is in a kind of like this situation, promptly, as shown in Figure 8, the helical pitch S1L of its rotation is less on the depth direction of ponding RS.

In addition, the closet rear side inwall of closet pelvic part 12 is the rear rakes 63 that tilt with roughly constant big gradient from ring 14 belows.The trap that this rear rake 63 continues up to the pelvic part bottom 13 of ponding RS water surface below 22 places that enter the mouth.In addition, the inwall of the side of closet pelvic part 12 is

rake

64R, 64L and bigger rake 65R, the 65L of gradient from the slow inclination of upper limb perisporium 55 continuities of the below of ring 14 as shown in figure 10.As rake 64R, 64L, be connected with the rake 60 of closet front side and when the flow direction of stating the 2nd main flow S2 is corrected, become the flushing water bearing plane, and be connected with the rear rake 63 of closet rear side.Although this rake 64L is with near the 1st main flow S1 channeling conduct ponding RS, but the 1st main flow S1 forwards flows from oblique rear, therefore, carry out as preceding having stated by lower end canopy portion 62 at the interflow of the 1st main flow S1 and ponding and impel its guiding of after this rotating.

Rake 65R, 65L are connected with rear rake 63 at the closet rear side at closet front side and rake 61.Rake 65R and be attached thereto that the 2nd main flow S2 that 63 pairs of continuous rear rakes obtain correcting as mentioned above stops and to ponding RS channeling conduct, and the rotary state of the flushing water that produces collaborating along with the 2nd main flow S2 behind the interflow and ponding RS is limited.In this occasion, rake 65R and rear rake 63 all tilt greatlyyer, the degree of its inclination is, in the Figure 10 that causes flowing into ponding RS along with flushing water the extensive magnitude Δ S of the ascending amount Δ H of water accumulation level and ponding water surface area the two when comparing, with respect to water accumulation level ascending amount Δ H, water surface extensive magnitude Δ S is about 1/5～2/5 degree, when water level rises the ponding water surface area with respect to original enlarged areas approximately less than 40%.That is, as the 2nd main flow S2, even after with big like this gradient and ponding RS interflow, still can under the guiding of these rakes, rotate.Therefore, the situation of the flushing water rotation that produces along with the 2nd main flow S2 and ponding RS interflow will be as shown in Figure 8, and the helical pitch S2L of the rotation on the depth direction of ponding RS is bigger.Because of rake 65R and rear rake 63 and rake 65L are flexure plane, therefore, its inclined degree is described with the ratio of ponding water surface area extensive magnitude Δ S with aforementioned water accumulation level ascending amount Δ H, but also can be, from they vertical cross section in shape, the angle between the section peripheral wall surfaces of the ponding water surface and perisporium face is like that steep angles of about 5～25 degree.Like this, can produce the eddy flow of big helical pitch S2L through the 2nd main flow S2 of above-mentioned each rake guiding.

But the eddy flow that above-mentioned each back, main flow interflow is produced not is independent generation, but in ponding, produce simultaneously.Therefore, can dynamically draw an inference according to following.

By the eddy flow that in ponding RS, produces of the 2nd bigger main flow S2 of helical pitch of rotation as mentioned above utilize rotation with ponding RS to pelvic part bottom 13 1 sides, be that trap inlet 22 pushes.And as shown in Figure 9, this pushing is also worked for the less eddy flow of helical pitch of the rotation that is produced by the 1st main flow S1, and therefore, also dirt that will rotate along with the eddy flow of the 1st main flow S1 and spin rinse water itself push to trap inlet 22.Therefore, the performance of pushing ponding RS and dirt etc. is further enhanced.Even under the situation that this pushing effect is worked, also can not make the direction of rotation disorder of eddy flow.

In addition, the pelvic part of closet pelvic part 12 bottom 13 is the mortar shape and forms, and therefore, will diminish gradually towards the radius of gyration of above-mentioned two eddy flows of trap inlet 22, and the impetus of eddy flow strengthens.Therefore, the pushing performance of above-mentioned eddy flow further improves.For the effect that obtains therefrom, will narrate in the back.

When producing above-mentioned rotation with the 1st main flow S1 and the 2nd main flow S2 in ponding, flushing water in the closet pelvic part 12 and dirt enter in (being pressed into) siphon trap 20 from trap inlet 22, and emit from siphon trap 20 as described below.Here, before the situation to emissions described, the detailed formation to siphon trap 20 described earlier.Figure 11 is used for the pipeline of siphon trap 20 is constituted the key diagram that describes, show to sectional view with the 11-11 of Fig. 3, Figure 12 is the key diagram that decline duct portion 28 is showed to sectional view with the 12-12 of Fig. 3 and Figure 11, Figure 13 is the key diagram that decline duct portion 28 is showed to sectional view with the 13-13 of Fig. 3 and Figure 11, and Figure 14 is the key diagram that decline duct portion 28 is showed to sectional view with the 14-14 of Fig. 3 and Figure 11.

Top duct portion 26 is extended to the closet rear mutually continuously with riser culverts portion 24, and flushing water is fallen to decline duct portion 28 from weir 30, top.In the present embodiment, this top duct portion 26, it is big that its pipeline cross-sectional area begins from riser culverts portion 24 places to become, and makes it possible to as described later, with inwall topmost 70 places of air seal in top duct portion 26.

As top duct portion 26, except weir 30, top, also has the tongue of giving prominence to decline duct portion 28 towards oblique below from this weir, top 30 71.Weir 30, top becomes from riser culverts portion 24 and a little and as previously mentioned water accumulation level is limited to the turning back of pipeline the decline duct portion 28, and this tongue 71, rely on it to oblique below side-prominent a kind of like this shape facility in the pipeline, cross weir 30, top at flushing water and when decline duct portion 28 falls, play the guiding role.Therefore, the flushing water on weir 30, arrival top obtains the guiding of tongue 71 and falls to decline duct portion 28, thereby can reliably arrive upper pipeline canopy portion 75 that decline duct portion 28 has, described later and bottom pipeline canopy portion 77 etc. and locate, stopped at these canopy portions places and fallen downstream after rebounding.As shown in the figure, tongue 71 is given prominence to the bending of oblique below, therefore, zone in its lower section, air will be stranded in this when flushing water discharges.

As decline duct portion 28,, have dog leg piping portion 72, intermediate duct portion 73 and terminal duct portion 74 from top duct portion 26.Decline duct portion 28 to shown in Figure 14, has such dog leg piping portion 72 and intermediate duct portion 73 as Figure 11, that is, diminish gradually towards their pipeline cross-sectional area of terminal duct portion 74.That is to say, dog leg piping portion 72 and intermediate duct portion 73 diminish gradually along its cross-sectional area of direction that passes through of the flushing water that passes through from these duct portion, the footpath takes place to pipeline center line one side and contracts in the said situation that diminishes gradually as shown in Figure 12 and Figure 13 on the closet left and right directions.

Dog leg piping portion 72 has upper pipeline canopy portion 75 at the connecting portion place with intermediate duct portion 73.75 pairs of flushing waters that fall from weir 30, top through tongue 71 guiding of upper pipeline canopy portion stop and make the flushing water bounce-back, and make flushing water fall into the intermediate duct portion 73 in downstream.

Intermediate duct portion 73 has bottom pipeline canopy portion 77 at the connecting portion place with terminal duct portion 74.The flushing water that 77 pairs in this bottom pipeline canopy portion falls from tongue 71 and stop from the flushing water that upper pipeline canopy portion 75 falls through the periphery wall portion 76 of intermediate duct portion 73 and to make these flushing waters bounce-backs, and make flushing water fall into the terminal duct portion 74 in downstream.

Terminal duct portion 74 as shown in figure 14, the outer wall shape is cylindrical, its inside is that section is oval-shaped duct portion 79.And this end duct portion 74 is carried out so-called edge cover via not shown draining connector and not shown outfall, thereby this outfall and decline duct portion 28 are coupled together.Terminal duct portion 74 has the through hole 78 of reserving canopy portion 80 bottom and forming opening in the lower end of duct portion 79, this through hole 78 plays the effect that the open section area is diminished.80 pairs in canopy portion is above-mentioned bottom stops and makes the flushing water bounce-back to the flushing water of closet pelvic part 12 sides bounce-back at upper pipeline canopy portion 75 and pipeline canopy portion 77 places, bottom, guides flushing water into outfall from through hole 78.

As mentioned above, decline duct portion 28 has upper pipeline canopy portion 75 and bottom pipeline canopy portion 77, therefore, the flow of crossing the flushing water that weir 30, top falls to decline duct portion 28 hour, flushing water is stopped at pipeline canopy portion 77 places, bottom and is rebounded, if the flow that falls is bigger, then the two stops that flushing water makes it bounce-back by upper pipeline canopy portion 75 and bottom pipeline canopy portion 77.Therefore, the flow of the flushing water that no matter falls into is still to be to lack more, and all the portion of canopy bottom 80 with terminal duct portion 74 stops that flushing water makes it bounce-back, discharges flushing water afterwards to outfall.In this occasion, the two position relation of the tongue 71 on the periphery wall portion 76 of intermediate duct portion 73 and weir 30, top is, even if the minimum flow that the feedwater flow of flushing water waterworks (discharge value) sets for present embodiment (about 40 liters/minute), the flushing water that falls from weir 30, top can be reliably in 77 bounce-backs of bottom pipeline canopy portion.In addition, the size of the aperture area at the pipeline cross-sectional area of intermediate duct portion 73 and terminal duct portion 74 places 78 etc. even if can make that the feedwater flow of flushing water waterworks is above-mentioned minimum flow, can realize as described later that also holding of flushing water stay.

For carrying out the situation of emissions, with dynamically describing of flushing water in the decline duct portion 28 to have the decline duct portion 28 that as above constitutes.Figure 15 is the key diagram that dynamically describes to flushing beginning initial stage flushing water, and Figure 16 is held to flushing water that to stay the key diagram that describes in the situation of terminal duct portion 74, Figure 17 be the key diagram that the situation that siphonage takes place is described.

When beginning to wash closet when operating not shown push button or flush lever, flushing water flows into ring head race 16 from the flushing water waterworks, and as previously mentioned, flushing water flows among the ponding RS with the form of the 1st main flow S1, the 2nd main flow S2.So as shown in figure 15, the flushing water that enters in the riser culverts portion 24 is pressed in the flushing water that flows into ponding RS, therefore, the water level at riser culverts portion 24 places will rise.Being pressed into of this flushing water is based on aforementioned the 1st main flow S1 and the 2nd main flow S2 almost parallel and produces to the eddy flow that same direction of rotation and ponding RS interflow are produced.

The flushing water that is pressed into is as mentioned above crossed the weir, top 30 of top duct portion 26 and is fallen to decline duct portion 28 from riser culverts portion 24.As shown in figure 16, this flushing water be subjected to descending stopping of the upper pipeline canopy portion 75 of duct portion 28 and bottom pipeline canopy portion 77 etc. and rebounding.Flushing water also further falling downstream through bounce-back like this with the flushing water current towards terminal duct portion 74 sides of changed course, at this moment, being involved in of air in being accompanied by the decline pipeline and flow down along pipeline, under dirty speed reduces along with the change of flow direction the situation, arrive the terminal duct portion 74 in downstream.By flushing water this dynamically, in upper pipeline canopy portion 75 downstreams, flushing water to the sealing of its downstream pipeline with following beginning.

Because terminal duct portion 74 has canopy portion 80 bottom, therefore, flushing water is discharged from through hole 78 the canopy portion back of rebounding once more at 80 places bottom at this.In this occasion, as shown in figure 14, through hole 78 its aperture areas are less, therefore, as terminal duct portion 74, although a part of flushing water is discharged from through hole 78, also flushing water held and stay in the duct portion 79.

As present embodiment, even supplying with above-mentioned minimum flow under the situation of flushing water, still can by above-mentioned bounce-back dirty speed be reduced holding when staying flushing water at canopy portion place, therefore, cross weir 30, top and fall into the flow of the flushing water of decline duct portion 28 will be more than the flow of the flushing water that flows out to outfall through terminal duct portion 74.Therefore, initial in flushing beginning, duct portion 74 places realize simultaneously that holding of flushing water stayed and to the discharging of outfall endways.And the holding of terminal duct portion 74 place's flushing waters stayed the water yield to continue to fall into decline duct portion 28 along with flushing water and increased.The flushing water current that fall in 28 form cascade at the front end of tongue 71 from weir 30, top as shown in figure 16 to upper pipeline canopy portion 75 or bottom pipeline canopy portion 77.

The initial terminal duct portion of flushing beginning 74 places as mentioned above formed that holding of flushing water stayed and the situation of discharging under, the air that remains in the downstream under the effect of upper pipeline canopy portion 75 is involved in the flushing water of above-mentioned canopy portion bounce-back and discharges from terminal duct portion 74.And because the holding to stay and proceed of above-mentioned end duct portion 74 place's flushing waters, therefore, as shown in figure 17, intermediate duct portion 73 and terminal duct portion 74 will be full of flushing water and sealed.So, along with flushing water after this continues to fall, form the water column that arrives weir 30, top from terminal duct portion 74, and prevent that with this flushing water water column through hole 78 air outside from entering.After this water column forms, flushing water still continues to fall to decline duct portion 28 from weir 30, top, make holding of terminal duct portion 74 place's flushing waters stay the water yield to increase, therefore, established above-mentioned water column is when through hole 78 falls in the decline duct portion 28, its head can impel the flushing water circulation, thereby produces the decompression phenomenon in trap.And, via riser culverts portion 24 and cross weir 30, top and during this decompression phenomenon generation, still proceed, therefore, still can air not sucked from riser culverts portion 24 1 sides to the inflow of the flushing water that decline duct portion 28 flows into.Therefore, utilize height poor of the ponding water surface of closet pelvic part 12 and terminal duct portion 74, produced the so-called siphonage that the flushing water to closet pelvic part 12 aspirates, until make before siphonage disappears because of sucking air, this siphonage will continue.Therefore, the dirt of closet pelvic part 12 will and emit with ponding and outer suction siphon trap 20 with supplying being forced to property of flushing water.

But, the initial air that just remains in the inwall topmost 70 of top duct portion 26 still is closed in this inwall topmost 70, as air through not discharging as yet after above-mentioned being involved under the flushing water effect from decline duct portion 28, owing in decline duct portion 28, formed water column, therefore, rise along with this water column and be closed in the inwall topmost 70.In addition, sometimes also can air accumulation below tongue 71.But, owing to holding to stay and discharge, the existing flushing water in duct portion 74 places endways is in sealing state, and therefore, air can not invaded from through hole 78.And owing to also do not have air to suck in closet pelvic part 12 1 sides, therefore, the air cut-out that the above-mentioned water column of formation can not be closed air and enter, thereby the siphonage that produces as mentioned above can continue.Therefore, under the effect of siphonage, the dirt of closet pelvic part 12 sucks siphon trap 20 with being forced to property of ponding RS ground and emits.That is to say, this lavatory pan 10 has such feature, promptly, even if air is being discharged and is being made under the different situation of the water-filled existing closet of pipeline quickly with the flushing water of supplying with big flow, promptly, in the inwall topmost 70 of top duct portion 26 remaining have to be detained below air or the tongue 71 have under the situation of air, also can siphonage be produced and continue.And,, in the riser culverts portion 24 of siphon trap 20, top duct portion 26, decline duct portion 28 and the terminal duct portion 74, adopted the special shape of having stated for this siphonage being produced and continuing.

Can expect, when siphonage as mentioned above produces and continue, be closed in air pockets in the inwall topmost 70 of top duct portion 26 and will be involved in the flushing water that is sucked and continue to emit with this flushing water.

But in the present embodiment, to shown in Figure 14, decline duct portion 28 its pipeline areas are more down more little as Figure 11.Therefore, can impel and cross flushing water that weir 30, top falls into decline duct portion 28 and hold and stay in duct portion 74 places endways, thereby can realize conscientiously that holding of flushing water stay.Therefore, above-mentioned by air discharging and sealing produces and the reliability of the siphonage that continues is improved.That is, more reliable with siphonage to the pressure suction that dirt carries out, thus improve the emissions performance.

In the present embodiment, be to produce rotation with the helical pitch of rotation different the 1st main flow S1 and the 2nd main flow S2, therefore, by effect contrast described later also as can be known, the pushing efficient of rotation improves.Therefore, the situation that produces and continue for siphonage under the remaining situation that air arranged as mentioned above, can be by the U-shaped pipe being connected the suitable position of siphon trap 20, for example be connected near the inwall topmost 70, observe and confirmed for the liquid level change of the U time shape pipe that begins from toilet stool washing.Figure 18 is that Figure 19 is the curve map of the liquid level change of reflection U-shaped pipe to the key diagram that siphonage under the remaining situation of air produces and the state that is provided with of the U-shaped pipe that the situation that continues is confirmed is showed.

As shown in the figure, the liquid level of U-shaped pipe 90 produces at first in siphonage and changes to malleation, becomes negative pressure afterwards.To this, can consider like this.That is to say, can describe like this, promptly, in the present embodiment, with the flushing water of a small amount of at flushing initial stage with descend duct portion sealing of a part, therefore, when flushing beginning was pressed into the siphon trap by the pushing effect of rotation with flushing water at first, air pocket was compressed and makes pressure rising in the pipeline.Observe negative pressure after why producing malleation as mentioned above, illustrate that generation along with siphonage has formed the pressure suction to flushing water in the pipeline.Therefore, can think, so long as can produce the closet of above-mentioned U-shaped pipe liquid level change, just can accomplish be pressed into powerful pushing force under the situation of air pocket flushing water and after produce siphonage and make it and continue.

With the flushing water flow design occasion with effective higher total flow (about 6 liters) of water-saving closet with toilet stool washing, as the existing closet that just makes the ponding rotation at most merely, do not find above-mentioned malleation negative pressure variation, just from washing beginning from the beginning of there is negative pressure appearance to exist always.

Below, the emissions effect of embodiment is described.At first, describe with regard to the flushing water waterworks.As the present invention, the flushing water water supply modes is not subjected to constructional restriction, therefore, in the following description, the waterworks that use water jet pump are described, but obviously, for utilizing the head pressure feedwater person who holds the flushing water that stays in the flushing water water tank also to be suitable for.Figure 20 is the stereogram that the situation of assembling flushing water waterworks 100 on lavatory pan 10 is showed by broken section, and Figure 21 is that periphery to these flushing water waterworks 100 is by analysing and observe the key diagram that describes.

Flushing water waterworks 100 put the equipment that is installed in the closet rear and put in the portion 11, supply with flushing water to the ring head race 16 of ring 14.As Figure 21 institute detail display, these flushing water waterworks 100 have the flushing water water tank 108 that stores flushing water.In addition, flushing water waterworks 100 have the pipe arrangement 110 that is connected with running water tube through sealing valve 109, and the branched pipe 110a, the 110b that this pipe arrangement are branched into two troubles pass the water tank sidewall and stretch in the flushing water water tank 108.Flushing water water tank 108 its upper ends are opened wide, and are convenient to ball valve described later 115 in the water tank and water jet pump 113 etc. are assembled and keeped in repair.

Has flushing valve 111 on the pipeline of branched pipe 110a in its water tank, as the water-filled pipe of the flushing water that leads to water jet pump 113 (work water).The handle 111a that operates when flushing valve 111 has the flushing closet opens pipeline by the operation to this handle, makes flushing water lead to its downstream.

In the downstream of flushing valve 111, as after flushing pipe, be equipped with the pipe arrangement 112 and the pipe arrangement 114 that water jet pump 113 are clipped in the middle and set.Pipe arrangement 112 is downward always to be constituted along the path of water tank bottom to the side bending with downward end near flushing water water tank 108 bottoms, is connected with water jet pump 113 with path ends.Be positioned at the pipe arrangement 114 in water jet pump 113 downstreams, guide the flushing water of water jet pump ejection into ring head race 16 by flushing water water supply road 18.

This pipe arrangement 114 sets with path shown in Figure 20, has: extend near the 114a of riser culverts portion in water tank upper end upward from water jet pump 113; To the crooked and horizontal duct portion 114b that outside flushing water water tank 108, extend from the water tank sidewall in side; The decline duct portion 114c that extends downwards along the tank outer wall bending; And the 114d of connecting pipeline portion that is connected with flushing water water supply road 18 in its downstream.In this occasion, horizontal duct portion 114b is provided on the position that is higher than the full water water level WS when flushing water water tank 108 is full of flushing water W2 before the toilet stool washing, has vacuum shutter 114e in the middle of pipeline.Therefore, even cause flushing water to flow backwards from lavatory pan 10 sides for a certain reason, pipeline is communicated with atmosphere by vacuum shutter 114e, so can be easy to and prevent that reliably flushing water is to 108 refluences of flushing water water tank.In addition, the 114d of connecting pipeline portion of the pipeline end of pipe arrangement 114 is tightness with the connecting hole 19 on flushing water water supply road 18 and is connected on the position that is higher than full water water level WS.

Branched pipe 110b is connected in water tank on the ball valve 115, along with the switching of ball valve 115, carries out the supplementary feed of flushing water to flushing water water tank 108.Ball valve 115 is connected with an end of ball float steady arm 116, and the other end of steady arm is connected with ball float 117.Ball float 117 is provided in the little water tank 118 that is installed on flushing water water tank 108 tops.The upper end of little water tank 118 is opened wide.On the diapire of little water tank 118, be formed with through hole 118a.Therefore, ball float 117 fluctuates along with the variation of the flushing water water yields (water level) in the little water tank 118, and therefore the fluctuating mutually interlock of ball valve 115 and ball float and opening and closing, by its switching, make flushing water water tank 108 keep set full water water level WS.

Pipe arrangement 114 ejections of flushing water (tap water) that water jet pump 113 is supplied with pipe arrangement 112 in the face of setting in opposite directions.Pen Chu flushing water enters in the trunnion of pipe arrangement 114 lower ends like this, and at this moment, the Cistern flushing water in the flushing water water tank 108 are involved in this trunnion and flow into.So, from pipe arrangement 114, have jet flow water that flow velocity has been enhanced via flushing water water supply road 18 to 16 feedwater of ring head race.Afterwards, flushing water such as preceding stated from above-mentioned each weep hole discharging of ring head race 16.

Tap water pressure (primary side pressure) when carrying out the feedwater of above-mentioned flushing water according to toilet stool washing with flushing water total amount (about 4.5～6 liters) and flushing water flow (about 18～25 liters/minute) decision of supplying with water jet pump, the 0.098MPa that has an appointment (about 1kgf/cm ²) like this primary side feed pressure of low degree get final product.

Stopping feedwater carrying out like this.Ponding RS in closet pelvic part 12 is taken away, closet pelvic part 12 becomes skies and siphonage when stopping, the water level of flushing water W2 in the flushing water water tank 108 will be below horizontal at water jet pump 113, because the suction of air makes the flow amplification of water jet pump 113 stop.Afterwards, the tap water that discharges from nozzle 131 arrives rings 14 via pipe arrangement 114, to 12 feedwater of closet pelvic part.Its result, tap water flows in the closet pelvic part 12 that becomes empty, and ponding RS runs up to the water level that is limited by weir 30, top always.

Flushing valve 111 is closed after flowing through both quantitative tap water automatically.So, stopping to supply with tap water to water jet pump 113, water jet pump 113 quits work.The sequential that stops sequential, promptly stops tap water feedwater of this flushing valve 111 was adjusted according to the time that ponding RS in the closet pelvic part 12 reaches above-mentioned water level as mentioned above.When carrying out the adjustment of this sequential, consider to amplify degree, toilet stool washing with total washing water quantity etc. such as the flow of the ponding water yield and water jet pump 113, according to the requirement that can stop according to the sequential that these factors determined, design and manufacturing flushing valve 111.

Along with the work of water jet pump 113, flushing water W2 discharges from flushing water water tank 108, and therefore, the water level of flushing water W2 reduces in the flushing water water tank 108.Along with the reduction of flushing water W2 water level in the flushing water water tank 108, the water level of the flushing water W2 in the little water tank 118 also reduces.In this occasion, flushing water W2 in the little water tank 118 flows in the flushing water water tank 108 at leisure by the through hole 118a that is formed at the small-bore on the diapire, therefore, the speed that flushing water W2 water level reduces in the little water tank 118 is lower than the speed that flushing water W2 water level reduces in the flushing water water tank 108.Therefore, ball float 117 descends with less decrease speed, and therefore, ball valve 15 will be later than to water jet pump 113 supply flushing waters valve is opened.The decrease speed of ball float 117 by the speed of flushing water by through hole 118a, be the size decision of through-hole aperture, therefore, by adjusting through-hole aperture, that can adjust ball valve 115 opens the valve sequential.Following in the present embodiment carrying out.That is, 118a is adjusted into through hole, closes and water jet pump 113 quits work and the flushing of lavatory pan 10 when finishing in flushing valve 111, makes ball float 117 drop to set level.Therefore, in the same time that approximately finishes with toilet stool washing, ball valve 115 is opened and is begun flushing water to the feedwater of flushing water water tank 108 and additional, afterwards, makes flushing water water tank 108 be in to store the state of the flushing water W2 of full water water level WS.

Below, describe for the effect of the lavatory pan 10 that is assembled with above-mentioned flushing water waterworks 100.The lavatory pan that compares is existing water tank type siphon lyophobic closet, has the identical substantially siphon trap of pipeline area, by make the ponding rotation to closet pelvic part discharging flushing water.Test has as a comparison carried out reflecting the general microparticle residue number test and the residual number test of PP (polypropylene) pearl of dirt discharge ability.In this occasion, microparticle residue number test is carried out like this, that is, the particulate that to make about 2500 particle diameters be 4.5mm floats on ponding, washes closet under this state.In this test, as long as the microparticle residue number, thinks just that having dirt discharges ability below 125.The residual number test of PP pearl is carried out like this, that is, the PP pearl that makes 100 particle diameters be about 19mm is floated on ponding, washes closet under this state.In this test, as long as the residual number of PP pearl, thinks just that having dirt discharges ability below 25.To the lavatory pan 10 and the above-mentioned comparative example closet of present embodiment, change flushing water total amount (desired value) and carried out above-mentioned test.Figure 22 is the lavatory pan that compares at the lavatory pan 10 with present embodiment, just to the feedwater of closet pelvic part, compare and the key diagram that describes to the inflow of pelvic part, each flow that flushing water is discharged from trap, Figure 23 is the key diagram that the result of evaluation test that the lavatory pan 10 of present embodiment and comparative example closet are carried out shows.

By this Figure 22, Figure 23 as can be known, as the lavatory pan 10 of present embodiment, although the flow-rate ratio contrast lavatory pan that flow that flows into to the feedwater water yield of closet pelvic part, to pelvic part and flushing water are discharged from trap is little, the result of evaluation test is good especially.That is to say,, can increase substantially rinse capability with the effective existing flushing water total amount (about 6 liters) of water saving actual effect according to lavatory pan 10.We can say, this be because, in the present embodiment, conscientiously produced above-mentioned siphonage, not only there are the powerful suction dirt and the suction force of ponding to work, and the cause that works expeditiously of the pushing force of the eddy flow that produced of the 1st main flow S1 and the 2nd main flow S2 almost parallel ground and collaborate to same direction of rotation.Therefore, according to the closet of present embodiment, can bring into play very strong dirt and discharge ability.Closet as a comparative example, though also observed the generation of siphonage, from the existing difference of result of microparticle residue number test, the pushing efficient of the suction force of siphonage and eddy flow is less than the present embodiment closet.As for the residual number test of PP pearl, discharge ability owing to confirmed to obtain as described above high dirt, thereby do not give enforcement.

Secondly, with the water yield (5 liters) that is less than existing flushing water total amount, carried out the residual number test of test of microparticle residue number and PP pearl, its result according to the lavatory pan 10 of present embodiment, all can bring into play the rinse capability higher than the closet of comparative example.Result at this point, we can say equally, this be because, as present embodiment, conscientiously there is above-mentioned siphonage to produce, therefore not only there are the powerful suction dirt and the suction force of ponding to work, and the cause that works expeditiously of the pushing force of the eddy flow that produced of the 1st main flow S1 and the 2nd main flow S2 almost parallel ground and collaborate to same direction of rotation.Particularly, though be above-mentioned 5 liters (in fact being about 4 liters) few like this flushing water feedwater, PP pearl number residual in the ponding is reduced.We can say, this be because, the result that the pushing force of the eddy flow that the 1st main flow S1 and the 2nd main flow S2 almost parallel ground and collaborate to same direction of rotation is produced works expeditiously.

Secondly, the pushing efficient with regard to eddy flow compares.That is, change to watering supply characteristic, embodiment goods closet and comparative example goods closet are made the form of no siphon trap, and compare with regard to the pushing efficient of eddy flow such as closet pelvic part and ponding in order not make flushing water.Additional disclosure substitutes the siphon trap and the P pipe arrangement that will have a wall discharge structure is connected the upper end of riser culverts portion 24.Figure 24 is the key diagram that the closet of the present embodiment that does not have the siphon trap is showed, Figure 25 is the key diagram of being showed with regard to the result that the pushing efficient of eddy flow compares embodiment goods and comparative example goods.Test as a comparison, what carry out is the residual number test of PP pearl.

As shown in figure 24, being intended to the lavatory pan that eddy flow pushing efficient is confirmed is the pipeline of having removed in the lavatory pan 10 of the foregoing description after the weir, top 30, substitutes siphon trap 20 and is watertightness the draining Connection Block 170 that the wall draining is used has been installed.Like this, siphonage will can not produce, thereby for illustrated lavatory pan 10, can determine to depend on the dirt conveying capacity of eddy flow pushing efficient.

As shown in figure 25, according to the lavatory pan 10 of present embodiment, can bring into play the rinse capability higher (PP pearl pushing efficient) than comparative example goods closet.The result we can say equally at this point, and this is because in the present embodiment, the result that the pushing force of the eddy flow that the 1st main flow S1 and the 2nd main flow S2 almost parallel ground and collaborate to same direction of rotation is produced works expeditiously.

This means, owing to obtaining the high pushing efficient that eddy flow produces in the lavatory pan 10 that produces eddy flow as described above, therefore, utilize the eddy flow of present embodiment can obtain high rinse capability by using lavatory pan draining Connection Block shown in Figure 24, wall draining specification not adopt like that in the closet of structure of siphonage.In addition, be not limited to wall draining specification shown in Figure 24,, also can obtain high rinse capability by the eddy flow that adopts present embodiment using crooked draining Connection Block to be connected under the situation on the land drainage pipe arrangement.

In the present embodiment, can supply with flushing water with low discharge and bring into play above-mentioned high rinse capability.Flushing water to closet is supplied with the result that the water yield is confirmed, as the lavatory pan 10 of present embodiment, the supply water yield of flushing water is about 70 liters/minute, and comparative example goods closet is about 150 liters/minute.With so little flow, can't drive the air pocket of siphon trap out of the trap pipeline at first in the flushing beginning, therefore, existing closet does not adopt low discharge.But, as the present invention, will not discharge a kind of so new idea at first in the flushing beginning based on all remaining air, make that obtaining high ability with the low discharge feedwater becomes a reality.

As existing closet (comparative example product), all discharge in order to wash the initial remaining air of beginning, to ponding with the big flow of water, promptly supply with flushing water with big flow.Therefore, follow flushing water feedwater and the noise that produces and follow the discharge of air pocket and the noise that produces is bigger.But as present embodiment, as long as supply with flushing water with low discharge, therefore, above-mentioned noise is correspondingly little, can improve quietness.According to the result that noisemeter detects, the size of noise can reduce about 5～10% in the lavatory pan 10 of present embodiment.Be about 4 liters occasion in the flushing water total amount, be 66 decibels with the comparative example goods and compare, present embodiment can reach about 59 decibels.The flushing water total amount is about 5 liters occasion, according to present embodiment, can be reduced to about 63 decibels from about 67 decibels.

As form of implementation of the present invention, also can substitute aforesaid flushing water waterworks 100 and supply with flushing water by head pressure.Figure 26 is the key diagram that the lavatory pan 10 as the modified example of having assembled the flushing water water-storing tank is described.

As shown in the figure, in this lavatory pan 10, put at equipment and to have put flushing water water-storing tank device 150 in the portion 11, the flushing water that provides in the water tank to flushing water water supply road 18 below by water service pipe 151 from water tank.Supply with the flushing water on flushing water water supply road 18, state, flow in the ring head race 16, wait each weep hole to 12 dischargings of closet pelvic part from root the 1st weep hole 41 as preceding.Afterwards, utilize the 1st main flow S1, the 2nd main flow S2 almost parallel ground and realize pushing flushing water to the eddy flow that same direction of rotation collaborates to be produced, and, siphonages produced by siphon trap 20.Therefore, even if adopt the lavatory pan 10 of water-storing tank device 150, also can obtain the effect of above-mentioned minimizing flushing water total amount.

As this lavatory pan 10, flow into the head pressure h decision that the flushing water flow among the ponding RS obtains according to the full water water level of the stored Cistern flushing water of water-storing tank device 150.Even if this lavatory pan 10 is discharged at all air that flushing beginning is initial in will trap, thereby supply with flushing water with low discharge and get final product.Therefore, as long as water-storing tank device 150 can guarantee as preceding that stated, just only requiring that realization is fed water the head pressure h of this requirement with about 70 liters/minute low discharge can be enough.Therefore, the height of water-storing tank device 150 is compared with existing flushing water water tank type water-saving closet (6 liters of water saving targets), if be about its 1/2～2/3, thereby, though be the flushing water water tank type, also can realize low dwarfing and improve configuration design, freedom of appearance design.

Below, even if at air is arranged and below tongue 71, having under the situation of air trapping in that the inwall topmost 70 of top duct portion 26 is remaining as mentioned above, still can siphonage be produced and the manufacturing process of the lavatory pan 10 that continues describes.Figure 27 is the key diagram that the blank state when making lavatory pan 10 describes.

As shown in the figure, the blank state of lavatory pan 10 before burning till be, includes closet pelvic part 12 and pelvic part bottom 13 etc. and closet body BH and equipment that they are supported are put portion 11 at interior closet body blank BK; The top duct portion blank TK of the first half of top duct portion 26; Include ring 14 and be attached thereto continuous equipment and put the antetheca of portion 11 at interior ring blank RK; And the terminal pipeline blank MK that will become terminal duct portion 74.In this occasion, top duct portion blank TK, be the blank that becomes in the dog leg piping of top duct portion 26 shown in Fig. 2, Fig. 3 etc. with the wall portion of weir 30, top channel wall in opposite directions, and this wall portion be from the connecting portion of riser culverts portion 24, promptly from the joint that riser culverts portion 24 and closet pelvic part 12 separated rear rakes 63 are engaged to the connecting portion of decline duct portion 28 till the wall portion of set scope.And, lavatory pan 10 be with above-mentioned each blank respectively in advance with die forming, and burn till after each blank engaged as described later and produced.

Figure 28 is the key diagram that terminal pipeline blank MK is described with the situation of die forming, and Figure 29 is with including the key diagram that the shaping situation of siphon trap pipeline when interior closet blank is shaped compares to terminal duct portion.

As shown in figure 28, former 200 and formpiston 210 have been used.These two moulds are the aspiration-type moulds that formed by made from porous material, piled stock on profile separately.Former 200 in the central the position have a tubular end recess 201 arranged, have the abnormity depression 202 that matched moulds is used in top surface edge portion.Formpiston 210 have from top be the outstanding protuberance 211 of Long Circle shape approximately and at an end of this protuberance with round-shaped outstanding front end protuberance 212, in top surface edge portion, have the 202 chimeric special-shaped protuberances 213 that can cave in the abnormity of former 200.

With these two moulds with front end shape protuberance 212 embed the mode matched moulds of end recess 201 is arranged after, as Figure 28 (b) and its x-x to shown in Figure 28 of sectional view (c), formation die cavity MKK between the profile that end recess 201 and protuberance 211 are arranged.

Secondly, in die cavity MKK, inject slurry,, make slurry be deposited on the profile of each mould and slurry is adhered to through the attraction of each mould by not shown inlet.At this moment, as die cavity MKK, the part that contacts with the profile of each mould is buried by the thick slurry that adheres to of about 10mm, and remainder residual have have mobile slurry.After the outside is discharged in the never illustrated plasma discharge of slurry hole that should flowability, carry out dryly removing with the moisture in the slurry that will adhere in the die cavity.Like this, so-called fixedly promptly finish can be divided mould with above-mentioned two moulds.So the terminal pipeline blank MK terminal duct portion 74, the cylinder cup-shaped before being equivalent to burn till just finishes.In this occasion, in above-mentioned die cavity since the front end end face of front end protuberance 212 with have the bottom surface of end recess 201 to be bonded together, therefore, terminal pipeline blank MK has the through hole 74mk of the circle that the external diameter shape of copying front end protuberance 212 forms in its bottom surface.In this end pipeline blank MK, its outer wall shape becomes the drum of the inner wall shape formation of copying end recess 201, and inner wall shape becomes the Long Circle roughly of the outer wall shape formation of copying protuberance 211.That is, can make internal and external walls shape difference.Through hole 78mk on the terminal pipeline blank MK becomes through hole 78 after burning till, the base section except that this through hole 78mk becomes canopy portion 80 bottom.

But, with terminal duct portion with including the occasion that siphon trap pipeline is shaped at interior closet blank, shown in Figure 29 (a), the side form 215,216 about using that the closet blank forming uses.Like this, be equivalent to the blank part of terminal duct portion, the accumulation of slurry is adhered to and is so-called individual layer, therefore, the inner wall shape of this blank part can only be made the outer wall shape of copying the reflection mold shape and the shape (round-shaped) that forms, and can't resemble to make different inside and outside wall shapes above-described.

Figure 30 is the key diagram that employed mould describes during with die forming to top duct portion blank TK, and Figure 31 is the key diagram that this top duct portion blank TK is described with the situation of die forming.

As shown in figure 30, patrix 220 and counterdie 230 have been used in the shaping of top duct portion blank TK.Two moulds also are the aspiration-type moulds that is made of made from porous material about this, piled stock on profile separately.Patrix 220 has recessed with the shape that the outer wall shape that is equivalent to the top duct portion blank TK of above-mentioned wall portion in the top duct portion 26 is limited and recess 221 that form has the abnormity depression 222 that matched moulds is used in its left and right edges portion.Counterdie 230 has the shape that limits with the inner wall shape to top duct portion blank TK and the protuberance 231 that forms highlightedly, has abnormity with the patrix 220 222 chimeric special-shaped protuberances 223 that cave in its left and right edges portion.

With these two moulds so that after protuberance 231 carries out matched moulds opposite to each other with recess 221, will as shown in figure 31, formation die cavity TKK between the two profile of recess 221 and protuberance 231.

Secondly, never illustrated inlet injects slurry in die cavity TKK, go forward side by side worked the attraction of each mould make slurry pile up attached on the profile, work such as plasma discharge, drying.After super-dry, promptly finish in the die cavity so-called fixed, so after divide mould with above-mentioned two moulds.Like this, the top duct portion blank TK of the above-mentioned wall portion before being equivalent to burn till promptly finishes.The top duct portion blank TK of Cheng Xinging like this, the internal and external walls shape is limited by the profile shape of recess on the above-mentioned upper and lower mould and protuberance, and therefore, this inside and outside wall shape can variation, has improved the degree of freedom of design.In addition, because the inside and outside wall of top duct portion blank TK can be to pile up the black skin that adheres to a side in intimate contact in profile, thereby be to produce unexpected concavo-convex wall.

As shown in the figure, patrix 240 and counterdie 242 have been used in the shaping of ring blank RK.Two moulds also are the aspiration-type moulds that is made of made from porous material up and down, piled stock on profile separately.Patrix 240 has: have the profile that puts the antetheca of portion 11 to the first half of ring 14 with ring 14 consecutive equipment and include the shape that the outer wall shape of ring peristome perisporium at interior position limit.Counterdie 242 has: have the latter half and the described antetheca of ring 14 and the profile that includes the shape that the ring peristome bottom surface outer wall shape of perisporium at interior position limit.And, after with two mould matched moulds, between the profile of two moulds, form die cavity RKK, therefore, never illustrated inlet injects slurry in this die cavity RKK, go forward side by side worked the attraction of each mould make slurry pile up attached on the profile, work such as plasma discharge, drying.In this occasion, among the above-mentioned die cavity RKK, slurry is individual layer to be piled up on the profile attached to upper and lower mould, carries out under this state after the drying, and fixed in the die cavity promptly finished.Therefore, after divide mould with above-mentioned two moulds after, on the blank behind minute mould, except as the preceding root of having stated the 1st weep hole 41 and left central authorities weep hole 43 wait each weep hole, also formed connecting hole 19 through holes such as grade.Like this, the ring blank RK of the ring 14 before being equivalent to burn till promptly finishes.

Figure 33 is the key diagram that closet body blank BK is described with the situation of die forming, Figure 34 is the approximate three-dimensional map of this closet body blank BK employed bed die 250 during with die forming, Figure 35 is the key diagram that the section when the 34-34 line is cut open among Figure 34 is showed, Figure 36 is closet body blank BK approximate three-dimensional map of mould 260 in the employed pelvic part during with die forming, Figure 37 is the approximate three-dimensional map of closet body blank BK employed minute pattern 270 during with die forming, Figure 38 is the approximate three-dimensional map of closet body blank BK side form 280 of an employed side during with die forming, Figure 39 be equipment in the lavatory pan 10 is put portion's 11 peripheries closet body blank BK during with die forming situation and when being shaped employed in the key diagram showed of part type mould.

As shown in figure 33, when shaping closet body blank BK, at first, mould 260 in the pelvic part described later stood upside down with pelvic part protuberance 263 state up to be placed on the mould table (omitting among the figure).Secondly, with state that mould 260 in this pelvic part is fenced up side form 280 matched moulds about with closet.At this moment, in pelvic part, be assembled with branch pattern 270 in the mould 260 as described later.Afterwards, the mould upper limb that bed die 250 is placed on side form 280 carries out matched moulds.Like this, formed by each mould and be die cavity BKK handstand state, shown in Figure 33.Each mould is the aspiration-type mould that is formed by made from porous material, is deposited on the profile, makes slurry adhere to by attracting that slurry is connected airtight.In addition, on each mould, be formed with the special-shaped recess that is used for matched moulds and protuberance etc.

This die cavity BKK be for form the closet body BH that includes closet pelvic part 12 and pelvic part bottom 13 etc. and they are supported and equipment put portion 11 at interior, as to include the siphon trap 20 except the duct portion blank TK of top pipeline at interior closet body blank BK, so with its following division.Promptly, die cavity BKK as shown in the figure, about closet the place ahead and closet, be divided into the die cavity position BKK2 that fences up by the profile of mould in the pelvic part 260 and bed die 250, the die cavity position BKK3 that fences up by the profile of minute pattern 270 and bed die 250, the die cavity position BKK4 that fences up by the profile of mould 260 in bed die 250 and side form 280 and the pelvic part and by mould in the pelvic part 260 with divide the pattern 270 die cavity position BKK5 that fences up.Die cavity position BKK5 is upwardly extending in the positive and negative side of paper on Figure 33, and mutually continuous with die cavity position BKK2.Die cavity position BKK4 also extends on the positive and negative direction of paper, and BKK2 is mutually continuous with the die cavity position.

The bed die 250 that is used for forming this die cavity BKK has the bottom 251 as the matched moulds position as Figure 34, shown in Figure 35, has protuberance 252 in the above.This protuberance 252 has the bossing 253 of the pipeline outer wall that is used for forming siphon trap 20 and is used for forming device and puts the bossing 254 of the lower wall of portion 11, has trap recess 255 on the bossing 253.Trap recess 255 caves in and forms, except with siphon trap 20 in, the peripheral wall shape of decline duct portion 28 conforms to, also with closet pelvic part 12 in the soffit outer contour shape, closet body BH of outer contour shape, closet pelvic part 12 lower portion of soffit of pelvic part bottom 13 the outer wall shape of the BHK of downside foot (with reference to Figure 27) such as soffit and bottom conform to, can their shape being limited.In this occasion, because decline duct portion 28 as shown in figure 11, the taper shape that narrows down more with past more below forms, and therefore, as trap recess 255, the position of its duct portion 28 that is equivalent to descend is conical and forms as shown in figure 35.

As bossing 254, in order to form the part of above-mentioned die cavity position BKK4, its upper surface shape forms to put the shape that the soffit outer contour shape of the lower wall of portion 11 conforms to equipment.And being equivalent to the blank that equipment puts the lower wall of portion 11, its whole zone is formed by mould 260 in this bossing 254 and side form described later 280 and the pelvic part.

As shown in figure 36, in the pelvic part mould 260 have in the top as with described later about the upper limb of the side form 280 top rising wood 261 and being used for that carries out the part of matched moulds form bottom rising wood 262 with the connecting portion that is connected as the preceding ring blank RK that has stated.And mould 260 has pelvic part protuberance 263 and rear portion protuberance 264 in the pelvic part below the rising wood of its underpart.

Has the lower end protuberance 265 that protrudes shape formation that is that can limit to the internal perisporium shape of pelvic part bottom 13 in the lower end of pelvic part protuberance 263.This lower end protuberance 265 has the end notch part 266 that forms with the opening shape of the trap of riser culverts portion 24 inlet 22 (with reference to Fig. 2, Fig. 3) with conforming to.

The protrusion shape of pelvic part protuberance 263, except its lower end protuberance 265, it is whole internal perisporium shape with closet pelvic part 12, specifically, be to conform to the internal perisporium shape of upper limb perisporium 55 shown in Fig. 2 and Fig. 3 etc., rake 60, rake 61, lower end canopy portion 62 and rear rake 63 also can their shape to be limited.

Rear portion protuberance 264 with pelvic part protuberance 263 in opposite directions a side have the insertion depression 268 that described later minute pattern 270 inserted and assemble.And, this rear portion protuberance 264, its lower surface puts the lower wall of portion 11 with rear end face (left side among the figure) and equipment and the inner surface profile shape of rear wall conforms to, to form the part of above-mentioned die cavity position BKK4.

As shown in figure 37, divide pattern 270 to have, the insertion position 271 and the pipeline that can insert in the insertion depression 268 of mould 260 in the above-mentioned pelvic part form with protuberance 272, and these two is bonded into two trouble shapes.In this occasion, insert position 271 and have following relation with insertion depression 268.Promptly, by the size and dimension that inserts position 271 and insertion depression 268 is adjusted, can make and insert will divide in the depression 268 in the pelvic part that pattern 270 is assembled in handstand and can not produce spacious moving landform forming cavity under the state in the mould 260 will inserting position 271, and when carrying out mould operation in described later minute in the pelvic part mould 260 and branch pattern 270 can divide mould independently.

In addition, the also attached attached mould 273 that the trap opening that is used for being shaped is arranged on this minute pattern 270, by being embedded in the not shown solenoid in two moulds, by magnetic make attached mould 273 closely contact form with on the lower end side side of protuberance 272 at pipeline.Attached moulds 273 through utilizing magnetic like this and dividing pattern 270 closely to contact, under finishing the state of matched moulds with pelvic part in the end notch part 266 of lower end protuberance 265 of mould 260 seamlessly engage.In addition,, under this state, form with protuberance 272 and leave the gap between in opposite directions the pelvic part protuberance 263 with it at pipeline as minute pattern 270, with this gap as above-mentioned die cavity position BKK5.

Pipeline forms with the shape formation of protuberance 272 to conform to the pipeline inner wall shape of riser culverts portion 24 in the siphon trap 20 and this inner wall shape is limited.In addition, this pipeline forms with the fork-shaped linking part 274 at protuberance 272 and insertion position 271 and conforms to the pipeline side wall surface shape with the weir, top 30 of top duct portion 26 and tongue 71 and shape formation that their shape is limited.Be coated with resin etc. inserting position, lower surface 275 position 271, among the figure, make that slurry can be attached to this zone.The occasion of coated with resin not on this position, lower surface 275 for the slurry that is attached on this position, after the demoulding gets final product its removal.

Side form 280 has as shown in figure 38: as the closet cephalolateral margin portion 281 of the part of matched moulds between the side form of the left and right sides, closet posterior lateral margin portion 282, as with the root edge portion 283 of the part of bed die 250 matched moulds and as with the lower end edge portion 284 of the part of the side matched moulds of the bossing 254 of bed die 250.And side form 280 is to be peripheral recess 285 with the part of being surrounded by these edge portions.This peripheral recess 285 with include equipment and put portion 11 and conform to and the shape that this shape limits is formed in the outer wall shape of interior closet body BH.

When these bed dies 250 and side form 280 as shown in figure 33 behind the matched moulds, have been stated die cavity BKK and formed by each profile.In this occasion, put the closet rear side position of portion 11 at the desire forming device, as shown in figure 39, part type mould 290～293 in side form 280 and pelvic part, being assembled with between the rear portion protuberance 264 of mould 260, the perisporium shape of copying equipment to put portion 11 forms suitable die cavity position BKK4.

As mentioned above with above-mentioned each mould and by their matched moulds formed be used for forming the die cavity BKK of closet body blank BK after, never illustrated inlet injects slurry in this die cavity BKK, go forward side by side worked the attraction of each mould make slurry pile up attached on the profile, work such as plasma discharge, drying.In this occasion, at die cavity position BKK1 and the BKK3 place, die cavity position of above-mentioned die cavity BKK, slurry is on the profile of individual layer attached to each mould, and at other die cavity position, has formed so-called dual the adhering to of being filled by slurry between the profile in opposite directions.Afterwards, through above-mentioned drying, fixed in the die cavity promptly finished, and formed closet body blank BK by die cavity BKK.

Here the corresponding relation with regard to each die cavity position and blank describes.

On the BKK1 of die cavity position, in the internal perisporium zone of closet pelvic part 12 blank in the roughly whole zone of the whole zone of the upper limb perisporium 55 of closet pelvic part 12 upper limbs and rake 60 and rake 61, also be formed with the BHK of downside foot among the closet body BH and the blank at position from closet body the place ahead to its sidewall interval, left and right sides.On the BKK2 of die cavity position, be formed with the blank in the coupling part of rake 61 and lower end canopy portion 62 and lower end canopy portion 62 and the full field of pelvic part bottom 13.On the BKK3 of die cavity position, the lower end side channel wall of the riser culverts portion 24 in siphon trap 20 (and the partition wall between the decline duct portion 28) and being attached thereto the continuous weir, top 30 and tongue 71 also is formed with pipeline, the upper pipeline canopy portion 75 in this pipeline and the bottom pipeline canopy portion 77 of the dog leg piping portion 72 that includes decline duct portion 28, intermediate duct portion 73 and periphery wall portion 76 at interior blank.On the BKK4 of die cavity position, be formed with and contain the blank that equipment is put the closet wall that portion 11 fences up, and on the BKK5 of die cavity position, be formed with blank with the whole zone of closet pelvic part 12 and riser culverts portion 24 separated rear rakes 63 and the position that is connected with above-mentioned closet pelvic part internal perisporium.

After fixed, dividing mould through super-dry as mentioned above with above-mentioned each mould.At first, carry on the bed die 250 of topmost being installed in and make its demoulding, through hole 77mk is as shown in figure 35 offered in the lower end of the decline duct portion 28 of the blank after the demoulding.Lower end wall position around this through hole 77mk will become the bottom pipeline canopy portion 77 shown in Fig. 2 etc.Gripper shoe is installed is used for the bed die 250 that blank to the next demoulding partly supports with replacement, with entire die turn make the closet body blank BK that has been shaped return to normally towards.Secondly, will be through carrying on the mould 260 in the superposed pelvic part in upset back.In this occasion, divide pattern 270 on the direction that makes progress, to be subjected to some restraint forcess of blank fixed in the BKK5 of die cavity position, therefore, utilize and to have stated position 271 and the relation (adjustment of size and dimension) of inserting depression 268 inserted, mould in the pelvic part 260 is carried on separately.

In the pelvic part after mould 260 demouldings, minute pattern 270 is carried on the rear on tiltedly under with the attitude after the shape upset shown in Figure 33, made its minute mould.At this moment, lean on magnetic and divide the pattern 270 tight attached moulds 273 that contact in the some restraint forcess that on the direction of oblique upper, also are subjected to fixed blank in the BKK5 of die cavity position, therefore, dividing pattern 270 to overcome magnetic connects airtight the effect of power and carries out the branch mould and stay attached mould 273, with after attached mould 273 demouldings, just formed the good trap opening of precision after this.Afterwards, after the interior part type mould 290～293 of process carries out the stage of branch mould, because the closet body blank BK of the closet body BH before being equivalent to burn till finishes, therefore, this moment with preformed manufacturings formula closet 10 necessary all blanks, promptly, top duct portion blank TK, ring blank RK, terminal pipeline blank MK, closet body blank BK etc. make it to become one by the following method.

At first, top duct portion blank TK and terminal pipeline blank MK are bonded on the closet body blank BK.When engage top duct portion blank TK, as shown in figure 27, the riser culverts portion 24 among the closet body blank BK and decline duct portion 28 coupled together and the pipeline shutoff of siphon trap 20.And when engagement end pipeline blank MK,, carry out position adjustment with respect to decline duct portion 28 according to lavatory pan 10 users' the outfall and the situation of center to center distance.For example, make it to be positioned at such as the terminal duct portion 74 after burning till can be inserted on the position of outfall when closet is installed.Joint about terminal pipeline blank MK will be narrated in the back.Secondly, ring blank RK is bonded on the upper limb of closet body blank BK, afterwards will to closet body blank BK support about side form 280 remove.The blank of the lavatory pan 10 through obtaining like this carries out burning till of blank with predetermined firing condition after super-dry, the manufacturing of lavatory pan 10 is just finished.After burning till, carry out the assembling of flushing water waterworks 100.For water tank type shown in Figure 26, carry out the assembling of water service pipe 151 and water-storing tank device 150.

Make discussed above, have the low discharge flushing water that can never adopt with prior art institute to the water generates siphonage and when making it to be continued a kind of like this lavatory pan 10 of feature, under the blank state before burning till, dog leg piping place in the top of siphon trap 20 duct portion 26, from the connecting portion of riser culverts portion 24 to connecting portion that decline duct portion 28 is connected, do not exist as with the top duct portion blank TK of the wall portion of weir 30, top channel wall in opposite directions.Therefore, the inwall by will being used for forming riser culverts portion 24 and the branch pattern 270 of weir 30, top and tongue 71 are assembled in the pelvic part in the mould 260, just can form closet body blank BK.Thereby, can be with that side black skin of closely contacting with minute pattern 270 profiles and piling up as the internal face of riser culverts portion 24 and the wall of weir 30, top and tongue 71, therefore, can make these positions have the inwall of no concave-convex, and, can also produce weir, top 30 with outstanding position (tongue 71) in the pipeline that can't form by existing die forming.

With regard to the branch pattern 270 that is used for forming this riser culverts portion 24 and weir 30, top, though be subjected to be inserted in the insertion depression 268 of mould 260 in the pelvic part and assemble a kind of like this restriction, but the degree of freedom of mold shape is improved, thereby can realize the variation of siphon trap pipeline shape.Therefore, according to the manufacture method of present embodiment, can produce the diversified lavatory pan of siphon trap pipeline shape at an easy rate.And, the lower end protuberance 265 of mould 260 in the attached mould 273 of branch pattern 270 and the pelvic part is engaged, and with the opening part of this place as trap inlet 22, thereby can form trap inlet 22 with high dimension precision.

In addition, divide the shape of pattern 270 and attached mould weir 30,273 pairs of tops and trap inlet 22 to limit owing to utilize, therefore, can obtain closed height that shape was determined, pelvic part ponding (equal to push up weir 30 and trap enter the mouth the poor of 22 upper ends height) with good precision by them.

Additional disclosure, this closed height are just to prevent toy or the stink index from the performance defined of the anti-trap that comes up of gutter, height otherwise less than certain value.But if excessive height, the dirt that flies on the pelvic part ponding strengthens apart from the displacement that trap enters the mouth, and the emissions performance will be reduced.Therefore, in order to guarantee above-mentioned functions, the value of closed height must be in suitable scope, thereby, reaching the high accuracy this point from making this closed height, lavatory pan of the present invention and manufacture method thereof have impayable advantage.

In addition, because the terminal duct portion of inserting in the outfall 74 is split under the blank state, therefore, although this end duct portion 74 that includes after burning till is made by porcelain at interior whole closet, but when this lavatory pan 10 was installed, terminal duct portion 74 can be inserted in outfall.Therefore, the operation and the equipment that do not need to install in advance Connection Block etc. and make Connection Block, thereby help reducing cost.In addition, because terminal duct portion 74 can be inserted outfall and set, therefore, the siphon trap 20 with terminal duct portion 74 can adapt with the outfall specification as chinaware article.In addition, this end duct portion 74 is to utilize former 200 and formpiston 210 to form, its outer wall shape is being made under the columnar situation that to insert outfall rightly, inner wall shape can made as preceding and be suitable for discharges such as cotton rods with having stated and be suitable for holding the ellipse of continuing to employ the flushing water that produces siphonage.Therefore, lavatory pan 10 surcharges own are improved.

Below, other embodiment is described.Among this embodiment, be the embodiment that produces siphonage with the flushing water that big flow is supplied with, siphon trap pipeline shape is identical substantially with prior art.Figure 40 is used for the key diagram that lavatory pan 300 to other embodiment describes.

As shown in the figure, this lavatory pan 300 has crooked simply siphon trap 20A, and the 24A of its riser culverts portion faces closet pelvic part 12A via trap inlet 22.Ring 14 with state lavatory pan 10 identical in shape, but feedwater is envisioned for about 100～150 liters of/minute so big flows from the flushing water of ring.

Same with lavatory pan 10, the siphon trap 20A of this lavatory pan 300 has, and forms towards the closet rear obliquely the 24A of riser culverts portion of the pipeline of side, is connected with the 24A of riser culverts portion upper end and curved top portion duct portion 26A and being connected with top duct portion 26A and the decline duct portion 28A of extension downwards downwards from trap inlet 22A.But, owing to be that to supply with flushing water with above-mentioned big flow be prerequisite, therefore, not only duct portion 26A in top has weir, the top 30A that is crooked convex that the water accumulation level to closet pelvic part 12A limits, and above-mentioned each pipeline has identical substantially pipeline section configuration.And in this lavatory pan 300, the end portion of its decline duct portion 28A also is to be the terminal pipeline blank MK of split at interior closet body blank BKA with including ring 14 and closet body BH and siphon trap 20A under the blank state.The occasion of this end pipeline blank MK and lavatory pan 10 is same, engages with the end of the decline duct portion 28A of closet body blank BKA in advance before blank burns till.Closet body blank BKA is that the ring blank RK of ring 14 is split with respect to closet body blank BK with the blank of the integrally formed siphon trap 20A part of mould in bed die, left and right sides side form, the pelvic part.

Among this embodiment, the terminal duct portion 74 of inserting outfall also for split, therefore, can obtain to have stated the above-mentioned effect of terminal duct portion 74 under the blank state.

Below, the joint of terminal pipeline blank MK is described.In the above-described embodiments, for split, can insert in the outfall by the terminal duct portion 74 after burning till under the blank state for terminal duct portion 74.In this occasion, when duct portion 74 lower ends are positioned at the nearer height in closet bottom surface endways, outfall moved from ground, rest room get final product.Afterwards, as long as in the outfall of moving be inserted in and place suitable seal material (filler) between wherein the terminal duct portion 74, just can avoid draining to leak reliably from ground.Except this form, also can adopt following form.Figure 41 is that Figure 42 is the key diagram that the situation that terminal duct portion 74 is connected with outfall is described to the key diagram that describes with the corresponding situation of various center to center distance.

As center to center distance, be about 200mm at Japanese majority, the U.S. is about 305mm, and China is about 305mm and 405mm, and Taiwan is about 405mm, because of the difference difference of countries and regions.In the above-described embodiments, be illustrated for the 200mm that uses in Japan,, taked following measure in order to adapt to different center to center distance with supposition center to center distance.Figure 41 (a) illustrates the situation corresponding to center to center distance 200, and Figure 41 (b) illustrates the situation corresponding to center to center distance 305, Figure 41 (c) illustrate corresponding to the situation of center to center distance 405.As shown in these figures, when center to center distance Rf not simultaneously, also different from the closet rear end to terminal duct portion 74 (its center, limbers specifically) apart from Brf, this determines according to center to center distance Rf apart from Brf.

As shown in Figure 41, if center to center distance Rf is narrower, terminal pipeline blank MK is after engaging to close position, closet rear end, and BK burns till with closet body blank.And Rf broadens along with center to center distance, and terminal pipeline blank MK is engaged in the position of deflection closet pelvic part one side, and BK burns till with closet body blank.That is,, adjust the bonding station of terminal pipeline blank MK according to different center to center distance Rf.This adjustment is above-mentionedly carrying out in apart from Brf of realizing being determined by center to center distance Rf.In addition, for resembling the center to center distance Rf405, also do the shape of terminal pipeline blank MK (terminal duct portion 74) bigger, the limbers of decline duct portion 28 lower ends can be hidden to the bigger occasion of side-play amount of closet pelvic part side.That is, get the multiple terminal pipeline blank MK (terminal duct portion 74) that shape has nothing in common with each other in advance ready,, the bonding station of terminal pipeline blank MK is adjusted in the closet fabrication stage according to the actual conditions of the center to center distance of closet installation site according to Rf.Like this, can realize the generalization of closet body blank BK, that is to say, can realize the generalization of the molding die of the big and closet body blank BK that management its manufacturing and keeping etc. are numerous and diverse of die size.Therefore, as long as preparation can produce the terminal necessary mould of pipeline blank MK (with reference to Figure 28) as less blank parts, therefore, can reduce mould manufacturing and management costs thereof.And, through the joint of terminal pipeline blank MK and after this burn till and the closet that obtains can itself be deacclimatized center to center distance as one of outfall specification with the porcelain closet.

Shown in Figure 41 (c), the bigger occasion of terminal pipeline blank MK (terminal duct portion 74), though this duct portion can't insert in the outfall, as long as take following measure.That is,, seal, just can under the situation that prevents the draining leakage, flushing water be discharged from outfall around the outfall as long as below terminal duct portion 74, push down the annular packing material that outfall is fenced up.

Below, for not being terminal duct portion 74 is inserted from the outfall that ground is moved but will to be described with terminal duct portion 74 the two situation that are connected with the outfall that ground flushes substantially.Shown in Figure 42 (a), the 1st method is, with outfall HS that ground flushes in draining connector HSC is set.This draining connector HSC is the straight tube shape, terminal duct portion 74 is controlled and realize sealing with the handle part UP of its first half.In addition, this draining connector HSC, the insertion section DP of its latter half stretch among the outfall HS to realize the draining sealing.Like this, can will be connected on the outfall HS via draining connector HSC, can also guarantee the draining sealing with outfall HS terminal duct portion 74 in opposite directions.And this draining Connection Block HSC is the straight tube shape that handle part UP and insertion section DP are simply coupled together, because its shape is unified, therefore, can not gets wrong when closet is installed, and operate also very simple.

The 2nd method is shown in Figure 42 (b), and terminal duct portion 74 has discoid flange 74f near the perisporium its lower end.When making the terminal duct portion 74 of this shape, as long as former shown in Figure 28 200 is made and can be separated up and down, the die cavity that formation is used for forming flange 74f on its profile of separating gets final product.And before closet was installed, the drainage flange dish HSF that earlier upper end is had flange inserted among the outfall HS, put into annular packing material (so-called P sealing) endways between the flange part of the flange 74f of duct portion 74 and drainage flange dish HSF.Afterwards, seal around the outfall HS, can avoid draining to leak with the flange 74f of terminal duct portion 74 extruding P sealing.Like this, with outfall HS be connected and anti-draining is leaked and can itself be realized with terminal duct portion 74, do not need to make the Connection Block etc. of shapes such as bending thereby simple.

More than be illustrated with regard to embodiments of the invention, but obviously, the present invention is not limited to the foregoing description and form of implementation, can be implemented with various forms in the scope that does not exceed main idea of the present invention.

For example, in the above-described embodiments, the 1st main flow S1 makes the flushing water of root the 1st weep hole 41 dischargings and root the 2nd weep hole 42 discharge flushing waters interflow and formation, but the flushing water that also a weep hole from long hole shape can be discharged is as the 1st main flow S1.

In addition, in the lavatory pan 10 shown in the drawings such as Fig. 2 and Figure 26, also can be, top duct portion 26 has the pipeline area with riser culverts portion 24 same degree as shown in figure 43, and the air that relies on the weir 30, flushing water extruding top of rising in the riser culverts portion 24 makes it to flow in the following pipeline of top duct portion.Even do like this constitute owing to have the pipeline of aforesaid decline duct portion 28, too can by with air seal below tongue 71, and avoid ascending air with the water column disjunction and even siphonage is disappeared.Therefore can obtain the effect same with the foregoing description.

In addition, as shown in figure 44, the 1st weep hole 41a at rear, closet left side and the 2nd weep hole 43a in the place ahead, closet right side are set on ring 14, these two weep holes are on the diagonal position at center in the central authorities that are positioned on the closet vertical view with ponding RS.And, when from these two weep hole discharging flushing waters, the 1st main flow S1 and the 2nd main flow S2 will be as shown in figure, and relation and the ponding RS parallel substantially so that ponding RS is clipped in the middle collaborate, since the interflow of two main flows, the eddy flow of the same direction of rotation of generation among the ponding RS.Therefore, this modified example also has the advantage same with having stated lavatory pan 10.In addition, for the 2nd weep hole 43a, utilize ring head race 16 or utilize flexible pipe 43b to get final product to its guiding flushing water.In addition, stable in order to make from the 2nd main flow S2 of the 2nd weep hole 43a discharging, nozzle also can be set as this weep hole.

The possibility of utilizing on the industry

The present invention can be used in the flushing water that the outside is supplied with and discharge with toilet flushing to the closet pelvic part W.c.pan and have a manufacture method of this w.c.pan of siphon trap.

Claims

1. the flushing water that the outside is supplied with discharges from the top of closet pelvic part, holds at the closet pelvic part to produce the lavatory pan of eddy flow with the flushing closet in the ponding that stays, it is characterized in that,

This discharge portion is outer for flushing water with a kind of like this ponding confluent relation discharging, promptly, said two flushing water main flows are seen past tense with said ponding almost parallel ground and the said ponding interflow that is clipped in the middle from the angle of overlooking closet, and the eddy flow ground and the said ponding that produce same direction of rotation in said ponding collaborate.

2. as the said lavatory pan of claim 1, it is characterized in that,

The discharge portion of said head race has:

3. as the said lavatory pan of claim 2, it is characterized in that,

Said the 1st discharge portion, the flushing water that said head race is guided be respectively from being formed at a plurality of discharge orifices dischargings on the said head race, makes the flushing water current interflow of each discharge orifice discharging and form said the 1st flushing water main flow.

4. as claim 2 or 3 said lavatory pans, it is characterized in that,

Said the 3rd discharge portion has:

5. as the said lavatory pan of claim 4, it is characterized in that,

Said head race is provided with the secondary discharge portion that flushing water that said head race is guided discharges along said closet pelvic part Surface runoff ground in addition with respect to said the 1st～the 5th discharge portion; Comprise from the flushing water of the flushing water of said secondary discharge portion discharging and flowing in the roughly whole zone on said closet pelvic part surface.

6. want each said lavatory pan in 1～5 as right, it is characterized in that,

Said closet pelvic part has:

7. as the said lavatory pan of claim 6, it is characterized in that,

Said the 1st, the 2nd pelvic part surrounding wall portion make with ponding interflow after the flushing water rotary state there are differences, a side pelvic part surrounding wall portion makes that the helical pitch of rotating is bigger on the depth of accumulated water direction, the opposing party's pelvic part surrounding wall portion makes that the helical pitch of said rotation is less.

8. as the said lavatory pan of claim 7, it is characterized in that,

The 2nd pelvic part surrounding wall portion makes that the helical pitch of said rotation of said the 2nd flushing water main flow is bigger, and said the 1st pelvic part surrounding wall portion makes that the helical pitch of said rotation of said the 1st flushing water main flow is less.

9. as the said lavatory pan of claim 8, it is characterized in that,

Said the 1st pelvic part surrounding wall portion have with the trap of the bottom that is opened on said closet pelvic part side guiding canopy portion that form with the state that said ponding is fenced up, that said the 1st flushing water main flow is stopped in opposite directions, and this guiding canopy portion is positioned on the height and position that roughly aligns with the ponding water surface of said ponding, make said the 1st flushing water main flow with the less situation rotation of the helical pitch of said rotation

Said the 2nd pelvic part surrounding wall portion is in the position that said the 2nd flushing water main flow is stopped and make it to collaborate with said ponding, has the big perisporium face of the more said guiding canopy of above-below direction updip gradient portion, so that said the 2nd flushing water main flow is with the bigger situation rotation of the helical pitch of said rotation at said ponding.

10. as the said lavatory pan of claim 9, it is characterized in that,

The said perisporium of said the 2nd pelvic part surrounding wall portion is facial make along with flushing water flow to said ponding and ratio that ponding water surface area when rising enlarges with respect to original area in about 40%.

11. the flushing water that the outside is supplied with discharges from the top of closet pelvic part, holds at the closet pelvic part to produce the lavatory pan of eddy flow with the flushing closet in the ponding that stays, it is characterized in that,

12. one kind makes the outside flushing water of supplying with flow into the closet pelvic part and holds in the ponding that stays, it with the lavatory pan that said ponding is discharged from the siphon trap, be is characterized in that,

Said siphon trap has:

13. one kind makes the outside flushing water of supplying with flow into the closet pelvic part and holds in the ponding that stays, it with the lavatory pan that said ponding is discharged from the siphon trap, be is characterized in that,

Said siphon trap has:

14. as claim 12 or 13 said lavatory pans, it is characterized in that,

Weir, said top has flushing water is led so that the prerotation vane that flushing water is gone into towards said pipeline canopy clan, and said prerotation vane is provided with highlightedly so that the air trapping that this prerotation vane can make the pipeline after said pipeline canopy portion rise.

15. as the said lavatory pan of claim 12 to 14, it is characterized in that,

Said decline duct portion has a kind of like this decline pipeline shape,, is controlled in about 50～100 liters/minute said outer inflow of flushing water in said ponding, decline pipeline shape that can make said siphonage produce and continue of supplying with respect to flow that is.

16. as each said lavatory pan in the claim 12 to 15, it is characterized in that,

Said top duct portion has a kind of like this pipeline shape, that is, the pipeline portions that will be connected with said decline duct portion falls into the flushing water of said decline duct portion to cross the weir, top current are the pipeline shape that the boundary marks off the remaining zone of air.

17. as the said lavatory pan of claim 16, it is characterized in that,

Said top duct portion couples together said riser culverts portion and said decline duct portion with the big cross-sectional area of pipeline cross-sectional area than said riser culverts portion.

18. as the said lavatory pan of claim 17, it is characterized in that,

Said decline duct portion has a kind of like this decline pipeline shape, that is, contract the portion to said footpath from said pipeline canopy portion, and the area of pipeline section is varied down at least the area with the pipeline cross-sectional area same degree of said riser culverts portion gradually.

19., it is characterized in that the section configuration of the said pipeline section of said decline duct portion as the said lavatory pan of claim 18 on the closet left and right directions, directly contracting to pipeline center line one side.

20. as the said lavatory pan of claim 19, it is characterized in that,

Said decline duct portion has can make the flushing water crossing weir, above-mentioned top and fall into be drawn towards the contract said decline pipeline of portion of said footpath to said closet pelvic part one side bounce-back,

21. as each said lavatory pan in the claim 12 to 20, it is characterized in that,

Hold in the ponding that stays in order to make the outside flushing water of supplying with flow into the closet pelvic part, have each said said head race in the claim 1 to 5, and each said said closet pelvic part in the claim 6 to 9.

22. lavatory pan, hold the closet pelvic part that stays ponding by having, be used for closet body that said closet pelvic part is supported, produce the siphon trap pipeline of siphonage when discharging dirt, this siphon trap pipeline is from the trap opening of the bottom sides that the is opened on said closet pelvic part riser culverts portion towards oblique upper; Be connected with the upper end of this riser culverts portion and form dog leg piping, have the top duct portion on the weir, top that the water level to said ponding limits; And be connected with this top duct portion and the decline duct portion of extending downwards forms, it is characterized in that,

23. as the said lavatory pan of claim 22, it is characterized in that,

Have, be positioned at siphon trap pipeline the end, with the terminal duct portion that the outfall of closet outside is connected, said terminal duct portion is used for by this end duct portion said decline duct portion being connected with said outfall,

24. a lavatory pan has and holds the closet pelvic part that stays ponding, is used for closet body that said closet pelvic part is supported and the siphon trap pipeline that produces siphonage when discharging dirt, it is characterized in that,

Have, be positioned at said siphon trap pipeline end, with the terminal duct portion that the outfall of closet outside is connected, said terminal duct portion is used for by this end duct portion said decline duct portion being connected with said outfall,

25. as claim 23 or 24 said lavatory pans, it is characterized in that,

Said terminal duct portion be to select from multiple ready shape in order to adapt to the different occasion of distance between said outfall and the closet rear end, and the bonding station under its blank state can be adjusted according to said distance.

26. as the said lavatory pan of claim 25, it is characterized in that,

Said terminal duct portion be with said outfall in opposite directions, and by extruding be placed in lip ring around the said outfall to sealing around the said outfall to the terminal duct portion of said outfall draining.

27. as the said lavatory pan of claim 25, it is characterized in that,

Said terminal duct portion be with outfall in opposite directions, and by in be connected with said outfall with draining connector between the terminal duct portion between said outfall, to the terminal duct portion of said outfall draining.

28. as the said lavatory pan of claim 25, it is characterized in that,

Said terminal duct portion is made and can be inserted said outfall and set.

29. the manufacture method of a lavatory pan, be to make to have to hold the closet pelvic part that stays ponding, be used for closet body that said closet pelvic part is supported, and the siphon trap pipeline that when discharging dirt, produces siphonage, this siphon trap route is from the trap opening of the bottom sides that the is opened on said closet pelvic part riser culverts portion towards oblique upper, be connected with the upper end of this riser culverts portion and form the top duct portion with weir, top that the water level to said ponding limits of dog leg piping, and be connected with this top duct portion and the formed lavatory pan of decline duct portion that extends downwards, it is characterized in that having following operation:

Said operation (2) has following operation:

30. the manufacture method as the said lavatory pan of claim 29 is characterized in that, has following operation:

Have, the terminal duct portion blank of terminal duct portion end, that be connected with the outfall of closet outside that will be positioned at said siphon trap pipeline is with the operation of die forming, said terminal duct portion is used for by this end duct portion said decline duct portion being connected with said outfall

In said operation (3) before, the blank of said terminal duct portion is bonded on operation on the end of said siphon trap pipeline of blank state.