CN202048231U - Half-ball valve with leakage preventing mechanism - Google Patents
Half-ball valve with leakage preventing mechanism Download PDFInfo
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- CN202048231U CN202048231U CN2011201367024U CN201120136702U CN202048231U CN 202048231 U CN202048231 U CN 202048231U CN 2011201367024 U CN2011201367024 U CN 2011201367024U CN 201120136702 U CN201120136702 U CN 201120136702U CN 202048231 U CN202048231 U CN 202048231U
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Abstract
A half-ball valve with a leakage preventing mechanism comprises a valve body, a top through hole, a bottom through hole, a valve rod, the leakage preventing mechanism, a valve part and a side cover body, wherein the valve body is provided with a valve chamber and a through hole which is intersected and communicated with the valve chamber; the top through hole is arranged at the top, and the bottom through hole is arranged at the bottom; the valve rod penetrates through the top through hole; the leakage preventing mechanism is arranged in the valve body for preventing leakage; the valve part reaches against a valve seat; the valve rod penetrates through the valve part, and the opening and closing of the valve part are used for controlling the flow of passing fluid; the aperture size of the side cover body is larger than the size of an aperture through hole corresponding to the valve body; and the side cover body is locked and fastened at one side of the aperture through hole. The leakage preventing mechanism is arranged at the front end of the valve part and is used for sealing the joint of the valve part and the valve body to prevent the two sides from being communicated through the joint by the fluid. The side cover body is locked and fastened on the valve body; the leakage preventing mechanism is arranged between the side cover body and the valve body in the manner of interference fit; and the leakage preventing mechanism can be taken out only by disassembling the side cover body during the maintenance, and is very easy to maintain.
Description
Technical field
The utility model relates to a kind of valve body, especially a kind of semispherical valve with stopping leak mechanism.
Background technique
Semispherical valve of the prior art comprises: a valve body, and this valve body has a valve chamber, and a caliber through hole that intersect to connect with this valve chamber; Reach the top and be provided with a top through hole, the bottom is provided with a bottom through-hole; One valve rod, this valve rod penetrated this top through hole, and the axis hole of this valve body, and this valve stem tip can connect a valve operator, were used to drive this valve body rotation, so that the caliber through hole can optionally be opened or close to this valve body; One valve member, this valve member are arranged on the valve seat, the unlatching of this valve member and close can control flow by fluid; One side cover body, this side cover body caliber size is corresponding to the size of the caliber through hole of this valve body, and the one side of this side cover body is provided with several screws, and this side cover body uses several screws, passes those screws, and locking is on a side of this caliber through hole.
Just, existing semispherical valve Chang Yin overuses and causes the inclination or the damage of valve seat and valve rod, and makes this semispherical valve leak, and causes the raising of industrial maintenance cost.
TaiWan, China patent announcement of the prior art number No. 582471 " the bulb stopper protection structure of valve body " novel patent case, learn according to its claim content: it is to comprise: at least two coating guard shields of symmetrical kenel each other, this coating guard shield is a columned post portion, post portion one side is provided with the mouth that acts during a vacancy of a semicircle, post portion is extended with the bigger ring antelabium of external diameter in an end, coat guard shield and axially run through post portion and be equipped with opening one, the end face that post portion differs from antelabium is to be formed with cambered surface differing from mouthful position that acts during a vacancy; So as to making at least two cambered surfaces that coat guard shields envelope the both sides of bulb stopper respectively, with the protection bulb stopper.
Just; case before above-mentioned " the bulb stopper protection structure of valve body " novel patent; when practical operation is used, owing to elasticity and the adaptation that can't adjust voluntarily between bulb stopper and the coating guard shield, when elasticity is too tight; it is very big to rotate the required torsion of bulb stopper; need be used more powerful controller, cost is higher, when adaptation is too low; can derive the problem of leakage again, so it remains the problem and the disappearance of solution to be overcome.
The model utility content
So the purpose of this utility model is for solving the problem on the above-mentioned prior art, the utility model purpose is to propose a kind of semispherical valve with stopping leak mechanism, it is that a stopping leak mechanism is inserted in this valve seat, when this side cover body and this valve seat clamping, when this stopping leak mechanism that mediates is clamped, can produce reaction force and strengthen the in-house sealing packing ring of this stopping leak by the clamping power, and can form a space in this valve seat and this valve body caliber through hole, rotate the needed torsion of valve member so as to reducing, it is low to make it have a cost, volume is little, lightweight advantage can effectively prevent the problem of leaking simultaneously.
Be to propose a kind of semispherical valve with stopping leak mechanism in the utility model that achieves the above object, it comprises: a valve body, and this valve body has a valve chamber, and one intersects the caliber through hole that connects with this valve chamber; Reach the top and be provided with a top through hole, the bottom is provided with a bottom through-hole; One valve rod, this valve rod penetrated this top through hole, and this valve rod wore this valve member, so that the caliber through hole can optionally be opened or close to this valve body; One stopping leak mechanism, this stopping leak mechanism is arranged in this valve body, is used to prevent escape of liquid; One valve member, this valve member is connected to valve seat; The unlatching of this valve member and close can control flow by fluid; And a side cover body, this side cover body caliber size is corresponding to the size of the caliber through hole of this valve body, and this side cover body locking is on a side of this caliber through hole; Wherein this stopping leak mechanism is positioned at the front end of this valve member, is mainly used in the junction point of this valve member of sealing and this valve body, prevents that fluid is communicated with both sides via this junction point.
Wherein, this stopping leak mechanism can be made as three kinds of different modules, and each module is installed in the above-mentioned valve body in interchangeable mode again, and need not change the kenel of other assemblies, and each module can be used in different Environmental Conditions.
Wherein, this side cover body is preferably with screw and is locked on this valve body, and this stopping leak mechanism is installed between side cover body and the valve body in the close-fitting mode, only need during maintenance this side cover body is disassembled, this stopping leak mechanism can be taken out maintenance quite easily, also available other common detachable connections certainly.
Wherein, this stopping leak mechanism comprises:
Connect a valve seat, this valve seat is placed in this valve chamber; This valve seat is circular, and has a chase and bottom indent stepped along the top of circumferential surface;
Connect a drop-stopping ring, this drop-stopping ring is an O shape ring, and this drop-stopping ring is inserted in the chase of this valve seat, and this drop-stopping ring has preferable elasticity;
Connect a sealing packing ring, this sealing packing ring is an annulus, and its anchor ring is, and the undulating springs shape provides reaction force when clamping; The sealing packing ring generally is made of metal material; When the sealing gasket deforms, because this drop-stopping ring has preferable elasticity, so quite good water seal can be provided;
Wherein when assembling, earlier this valve member is gone into by this caliber through hole one side, this drop-stopping ring is inserted in the chase of this valve seat, again this valve seat is gone into by this caliber through hole one side equally, and cover props up this valve seat should valve member is gone into this sealing packing ring again by this caliber through hole one side, at last this side cover body is inserted this caliber through hole, and use those screws that its side cover body is locked on this valve body; When this side cover body and this valve seat clamping, middle sealing packing ring is when being clamped, because of it is the wave moulding, therefore can produce reaction force, can produce reaction force and strengthen this sealing packing ring, and this valve seat and this valve body caliber through hole form a space, rotate the needed torsion of valve member so as to reducing by the power of clamping, have that cost is low, volume is little, lightweight advantage, can effectively prevent the problem of leaking simultaneously.
Wherein, its ring that is constituted for falope ring or graphite or PTEF material of this drop-stopping ring.
Wherein, this stopping leak mechanism comprises:
Connect a valve seat, this valve seat is placed in this valve chamber; This valve seat is circular, and along the top of circumferential surface and the bottom all to center of circle indent and steppedly be axial evagination; This valve seat is constituted by metal material;
Connect an adapter ring, this adapter ring is stepped; This adapter ring is positioned at this nearly valve body place, valve seat top, and is sleeved in this valve body; And this adapter ring and this valve seat intersection are tied to form a space, so that an elasticity enough and to spare to be provided;
Connect one first stopping leak pressure ring, this first stopping leak pressure ring has a vee-cut in the form of a ring in the intermediate portion; This first stopping leak pressure ring is positioned on this valve seat, and this first stopping leak pressure ring bottom contacts this adapter ring;
Connect one second stopping leak pressure ring, this second stopping leak pressure ring has a flange in the form of a ring in the intermediate portion, and wherein this flange is to the shape of vee-cut that should the first stopping leak pressure ring; This second stopping leak pressure ring is positioned on this valve seat, and this second stopping leak pressure ring flange sleeve is should the vee-cut of the first stopping leak pressure ring;
Connect wherein that this second stopping leak pressure ring is that elastic material is made, when this second stopping leak pressure ring is extruded, be ductile, characteristic such as inflatable is so that form close-fitting with each element in the above-mentioned stopping leak mechanism;
Connect a shell fragment, this shell fragment in the form of a ring, this shell fragment is positioned on this valve seat, and this second stopping leak pressure ring of conflicting; This shell fragment is in order to an elasticity enough and to spare to be provided, with the distortion that other elements were produced that diminishes;
Wherein when assembling, earlier this valve member is gone into by this caliber through hole one side, again adapter ring is inserted in the valve body, this adapter ring is positioned on this valve seat, and this adapter ring and this valve seat intersection are tied to form a space, this first stopping leak pressure ring is inserted in this valve body, and this first stopping leak pressure ring bottom contacts this adapter ring; This second stopping leak pressure ring is inserted subsequently, and this second stopping leak pressure ring flange sleeve is should the vee-cut of the first stopping leak pressure ring, and this shell fragment is inserted in this valve body, this shell fragment is positioned on this valve seat, and this second stopping leak pressure ring of conflicting, at last this side cover body is inserted this caliber through hole, and use those screws that its side cover body is locked on this valve body; When this side cover body and this valve seat clamping, the first middle stopping leak pressure ring and the second stopping leak pressure ring are when being clamped, can reach better tightness with the mutual chimeric form of groove therebetween, and this adapter ring and this valve body caliber through hole form a space, one elasticity enough and to spare is provided, so as to reduce rotating the needed torsion of valve member, have that cost is low, volume is little, lightweight advantage, can effectively prevent the problem of leaking simultaneously.
Wherein, this adapter ring is constituted by elastic material, a kind of among silica gel or graphite or the PTEF.
Wherein, this first stopping leak pressure ring is constituted by elastic material, a kind of among silica gel or graphite or the PTEF.
Wherein, this second stopping leak pressure ring is constituted by elastic material, a kind of among silica gel or graphite or the PTEF.
Wherein, this stopping leak mechanism comprises:
One valve seat, this valve seat are placed in this valve chamber; It is circular that this valve seat slightly is, and a chase is arranged along the inboard at the top of circumferential surface and inwardly contract away from the outboard shafts of valve body, and the inner shafts of nearly valve body is stepped to evagination; This valve seat is the assembly of PTFE material manufacturing; General PTFE material becomes a kind of plastic cement of usefulness for the worker, and its lubricity is low, and stopping leak is respond well, can be so that the torsion of valve body reduces a lot;
Wherein the caliber bottom surface of this side cover body is convexly equipped with a flange; This flange engages the chase of this valve seat, has the function of ear clip with formation, difficult drop-off during use.
This valve member is any in ball valve or the semispherical valve.
Useful technique effect of the present utility model is: a kind of semispherical valve with stopping leak mechanism of the present utility model comprises: a valve body, and this valve body has a valve chamber, and a caliber through hole that intersect to connect with this valve chamber; Reach the top and be provided with a top through hole, the bottom is provided with a bottom through-hole; One valve rod, this valve rod penetrated this top through hole, and the axis hole of this valve body, and this valve stem tip can connect a valve operator, were used to drive this valve body rotation, so that the caliber through hole can optionally be opened or close to this valve body; One stopping leak mechanism, this stopping leak mechanism is arranged in this valve body, is used to prevent leak; One valve member, this valve member is connected to this valve seat; This valve rod wore this valve member, the unlatching of this valve member and close can control flow by fluid; One side cover body, this side cover body caliber size is corresponding to the size of the caliber through hole of this valve body, and the one side of this side cover body is provided with several screws, and this side cover body uses several screws, passes those screws, and locking is on a side of this caliber through hole.
By said structure, this stopping leak mechanism can be inserted in this valve seat, when this side cover body and this valve seat clamping, when this stopping leak mechanism of centre is clamped, can produce reaction force and strengthen the in-house sealing packing ring of this stopping leak by the clamping power, and this valve seat and this valve body caliber through hole form a space, rotates the needed torsion of valve member so as to reducing, make it have that cost is low, volume is little, lightweight advantage, can effectively prevent the problem of leaking simultaneously.
Can further understand feature of the present utility model and advantage thereof by explanation hereinafter, during reading and please refer to accompanying drawing.
Description of drawings
Fig. 1 shows the utility model first embodiment's stereogram.
Fig. 2 shows the utility model first embodiment's sectional view.
Fig. 3 shows the utility model second embodiment's stereogram.
Fig. 4 shows the utility model second embodiment's sectional view.
Fig. 5 shows the utility model the 3rd embodiment's stereogram.
Fig. 6 shows the utility model the 3rd embodiment's sectional view.
[primary component symbol description]
1 valve body, 2 valve rods
3 stopping leak mechanisms 4,4 ' side cover body
6 stopping leak mechanisms of 5 stopping leak mechanisms
10 valve chambers, 11 caliber through holes
30 valve seats, 31 valve members
32 drop-stopping rings, 33 sealing packing rings
40 screws, 41 ' flange
50 valve seats, 51 adapter rings
52 first stopping leak pressure rings, 53 second stopping leak pressure rings
54 shell fragments, 61 valve seats
101 top through holes, 102 caliber through holes
103 bottom through-holes, 301 chases
520 vee-cuts, 530 flanges
601 chases.
Embodiment
Now sincerely form with regard to structure of the present utility model, and the effect and the advantage that can produce, conjunction with figs. is lifted a preferred embodiment of the present utility model and is described in detail as follows.
Please refer to Figure 1 and Figure 2, show the semispherical valve with stopping leak mechanism of the present utility model, comprise following elements:
One valve body 1, this valve body have a valve chamber 10, and a caliber through hole 11 that intersect to connect with this valve chamber; Reach the top and be provided with a top through hole 101, the bottom is provided with a bottom through-hole 103;
One valve rod 2, this valve rod penetrated this top through hole 101, and the axis hole of this valve body, and this valve stem tip can connect a valve operator (not shown), were used to drive this valve body rotation, so that caliber through hole 11 can optionally be opened or close to this valve body.
One stopping leak mechanism 3, this stopping leak mechanism comprises:
One valve seat 30, this valve seat are placed in this valve chamber 10; It is circular that this valve seat slightly is, and have a chase 301 and bottom indent stepped along the top of circumferential surface.
One drop-stopping ring 32, this drop-stopping ring 32 are O shape ring, and it is falope ring or graphite or PTEF(teflon) ring that material constituted, this drop-stopping ring 32 is inserted in the chase 301 of this valve seat, and this drop-stopping ring 32 has preferable elasticity.
One sealing packing ring 33, this sealing packing ring 33 is an annulus, its anchor ring undulate spring-like can provide reaction force when clamping.Sealing packing ring 33 generally is made of metal material.When 33 distortion of sealing packing ring,, can provide quite good water seal because this drop-stopping ring 32 has preferable elasticity.
One valve member 31, this valve member 31 are arranged on this valve seat 30, the unlatching of this valve member 31 and close can control flow by fluid; Wherein this valve member is ball valve or semispherical valve.
One side cover body 4, these side cover body 4 caliber sizes are corresponding to the size of the caliber through hole of this valve body, and the one side of this side cover body 4 is provided with several screws, and this side cover body uses several screws 40, passes those screws, and locking is on a side of this caliber through hole.
Please refer to shown in Figure 2, generalized section for the utility model elements combination, when assembling, earlier this valve member is gone into by these caliber through hole 11 1 sides, this drop-stopping ring 32 is inserted in the chase 301 of this valve seat, again this valve seat 30 is gone into by these caliber through hole 11 1 sides equally, and cover is should valve member, again this sealing packing ring 33 is gone into by these caliber through hole 11 1 sides, prop up this valve seat 30, at last this side cover body 4 is inserted this caliber through hole 11, and use those screws that its side cover body 4 is locked on this valve body.When this side cover body 4 and this valve seat clamping, middle sealing packing ring 33 is when being clamped, because of it is the wave moulding, can produce reaction force and strengthen this sealing packing ring 33 by the power of clamping, and this valve seat 30 forms a space with this valve body caliber through hole 11, rotate the needed torsion of valve member so as to reducing, thereby it has, and cost is low, volume is little, lightweight advantage, can effectively prevents the problem of leaking simultaneously.
Illustrating that hereinafter of the present utility model second implements sharply, among the utility model second embodiment, only is the stopping leak mechanism in the middle of having changed, and wherein in the element person that is the same numeral, all is same as an embodiment, does not just add to give unnecessary details at this, only difference is illustrated.Please refer to Fig. 3 and shown in Figure 4.
One valve body 1, this valve body have a valve chamber 10, and a caliber through hole 11 that intersect to connect with this valve chamber; Reach the top and be provided with a top through hole 101, the bottom is provided with a bottom through-hole 103;
One valve rod 2, this valve rod penetrated this top through hole 101, and the axis hole of this valve body, and this valve stem tip can connect a valve operator (not shown), were used to drive this valve body rotation, so that caliber through hole 102 can optionally be opened or close to this valve body.
One stopping leak mechanism 5, this stopping leak mechanism comprises:
Connect a valve seat 50, this valve seat is placed in this valve chamber 10; It is circular that this valve seat slightly is, and along the top of circumferential surface and the bottom all to center of circle indent and steppedly be axial evagination.This valve seat 50 is constituted by metal material.
One adapter ring 51, this adapter ring 51 is stepped.This adapter ring 51 is positioned at this nearly valve body place, valve seat 50 tops, and is sleeved in this valve body.And this adapter ring is into a space with this valve seat intersection, and so that an elasticity enough and to spare to be provided, this adapter ring 51 is by being made of elastic material, for example silica gel or or graphite or PTEF.
One first stopping leak pressure ring 52, this first stopping leak pressure ring 52 have a vee-cut 520 in the form of a ring in the intermediate portion; This first stopping leak pressure ring 52 is constituted by elastic material, and as silica gel or graphite or PTEF, this first stopping leak pressure ring 52 is positioned on this valve seat, and these first stopping leak pressure ring, 52 bottoms contact this adapter ring 51.
One second stopping leak pressure ring 53, this second stopping leak pressure ring 53 have a flange 530 in the form of a ring in the intermediate portion, wherein this flange is to the shape of vee-cut 520 that should the first stopping leak pressure ring; This second stopping leak pressure ring 53 is positioned on this valve seat, and these second stopping leak pressure ring, 53 flange sleeves are should the vee-cut 520 of the first stopping leak pressure ring.This second stopping leak pressure ring 53 is by being made of elastic material, for example silica gel or graphite or PTEF.
Connect wherein this second stopping leak pressure ring 53 and be elastic material (as, PTFE) made, when this second stopping leak pressure ring 53 is extruded, be ductile, characteristic such as inflatable so that with above-mentioned stopping leak mechanism 5 in each element formation close-fitting.
Connect a shell fragment 54, this shell fragment 54 in the form of a ring, this shell fragment 54 is positioned on this valve seat, and this second stopping leak pressure ring 53 of conflicting.This shell fragment 54 is in order to an elasticity enough and to spare to be provided, with the distortion that other elements were produced that diminishes.
One side cover body 4, these side cover body 4 caliber sizes are corresponding to the size of the caliber through hole of this valve body, and the one side of this side cover body 4 is provided with several screws, and this side cover body uses several screws 40, passes those screws, and locking is on a side of this caliber through hole.
Please refer to shown in Figure 4, generalized section for the utility model elements combination, when assembling, earlier this valve member is gone into by these caliber through hole 11 1 sides, adapter ring 51 is inserted in the valve body, this adapter ring 51 is positioned on this valve seat again, and this adapter ring is into a space with this valve seat intersection, this first stopping leak pressure ring 52 is inserted in this valve body, and these first stopping leak pressure ring, 52 bottoms contact this adapter ring 51; This second stopping leak pressure ring 53 is inserted subsequently, and these second stopping leak pressure ring, 53 flange sleeves are should the vee-cut 520 of the first stopping leak pressure ring, and this shell fragment 54 is inserted in this valve body, this shell fragment 54 is positioned on this valve seat, and this second stopping leak pressure ring 53 of conflicting, at last this side cover body 4 is inserted this caliber through hole 11, and use those screws that its side cover body 4 is locked on this valve body.When this side cover body 4 and this valve seat clamping, the first middle stopping leak pressure ring 52 and the second stopping leak pressure ring 53 are when being clamped, can reach better tightness with the mutual chimeric form of groove therebetween, and this adapter ring and this valve body caliber through hole form a space, one elasticity enough and to spare is provided, rotate the needed torsion of valve member so as to reducing, thereby it has, and cost is low, volume is little, lightweight advantage, can effectively prevents the problem of leaking simultaneously.
Present embodiment is to be suitable under high temperature, the high pressure effect, can avoid the arbitrary element in this stopping leak mechanism to come off, so this valve body is in when action, this stopping leak mechanism forms the state of close-fitting, be difficult for producing and leak, all can bring bigger convenience for producing and selling, keeping in repair.
Among the utility model the 3rd embodiment, the stopping leak mechanism in the middle of only changing wherein in the element person that is the same numeral, all is same as above embodiment, does not just add to give unnecessary details at this, only difference is illustrated.Please refer to Fig. 5 and shown in Figure 6.
One valve body 1, this valve body have a valve chamber 10, and a caliber through hole 11 that intersect to connect with this valve chamber; Reach the top and be provided with a top through hole 101, the bottom is provided with a bottom through-hole 103;
One valve rod 2, this valve rod penetrated this top through hole 101, and the axis hole of this valve body, and this valve stem tip can connect a valve operator (not shown), were used to drive this valve body rotation, so that caliber through hole 102 can optionally be opened or close to this valve body.
One stopping leak mechanism 6, this stopping leak mechanism comprises:
Connect a valve seat 61, this valve seat is placed in this valve chamber 10; It is circular that this valve seat slightly is, and have along the inboard at the top of circumferential surface contract in a chase 601 and the bottom outside stepped.
One valve member 31, this valve member 31 are arranged on this valve seat 61, the unlatching of this valve member 31 and close can control flow by fluid; Wherein this valve member is ball valve or semispherical valve.
One side cover body 4 ', this side cover body 4 ' caliber size is corresponding to the size of the caliber through hole of this valve body, and the caliber bottom surface of this side cover body 4 ' is convexly equipped with a flange 41 '; This flange 41 ' is sticked in the chase 601 of this valve seat 61, to form the function of ear clip, difficult drop-off during use.Wherein the one side of this side cover body 4 is provided with several screws, and this side cover body uses several screws 40, passes those screws, and locking is on a side of this caliber through hole.
Above embodiment discloses this stopping leak mechanism of three kinds of different modules, and each module can be installed in the above-mentioned valve body in interchangeable mode, and need not change the form of other assemblies, and each module is to be fit to be used in different Environmental Conditions; Wherein this side cover body is locked on this valve body with screw, and this stopping leak mechanism is installed between side cover body and the valve body in the close-fitting mode, only needs during maintenance this side cover body is disassembled, and this stopping leak mechanism can be taken out, quite easily maintenance.
In sum, the design of consideration of the utility model hommization, quite realistic demand.Its concrete improvement has disappearance now, obviously has breakthrough progressive advantage compared to prior art, the enhancement that has effect really, and non-being easy to reached.
Above-listed detailed description is specifying at a possible embodiments of the present utility model, just this embodiment is not in order to limit claim of the present utility model, allly do not break away from the equivalence that the utility model skill spirit does and implement or change, all should be contained in the claim of the present utility model.
Claims (10)
1. semispherical valve with stopping leak mechanism is characterized in that it comprises:
A valve body, this valve body have a valve chamber, and one intersect the caliber through hole of perforation with this valve chamber, and this valve body top is provided with a top through hole, and the bottom is provided with a bottom through-hole;
A valve member of opening and close the fluid flow that can control passes through;
A valve rod, this valve rod penetrated this top through hole and wore this valve member, so that this caliber through hole is optionally opened or closed to this valve body;
A stopping leak mechanism that is used to prevent escape of liquid, this stopping leak mechanism is arranged in this valve body, and the front end that is positioned at this valve member prevents with the space of the junction point of this valve body that to seal this valve member fluid is communicated with both sides via this junction point, and this valve member is connected to the valve seat of this stopping leak mechanism;
A side cover body, this side cover body caliber size are corresponding to the size of the caliber through hole of this valve body, and this side cover body locking is on a side of this caliber through hole.
2. the semispherical valve with stopping leak mechanism according to claim 1, it is characterized in that the one side of this side cover body is provided with several screws, this side cover body passes those screws by several screws, to be locked on this valve body, this stopping leak mechanism is installed between side cover body and the valve body in the close-fitting mode.
3. the semispherical valve with stopping leak mechanism according to claim 1 and 2 is characterized in that, this stopping leak mechanism comprises:
A valve seat, this valve seat are placed in this valve chamber; This valve seat is circular, and then indent is stepped along the top of circumferential surface a chase and bottom;
A drop-stopping ring, this drop-stopping ring are the flexible O shape ring of tool, and this drop-stopping ring is inserted in the chase of this valve seat;
The sealing packing ring that reaction force is provided when clamping, this sealing packing ring is an annulus, its anchor ring undulate spring-like; This sealing packing ring is made of metal material;
Wherein this valve seat cover is should valve member, and this sealing packing ring and this valve seat form a space that reduces the needed torsion of rotation valve member with this valve body caliber through hole.
4. the semispherical valve with stopping leak mechanism according to claim 3 is characterized in that, this drop-stopping ring is the ring that falope ring or graphite or PTEF material are constituted.
5. the semispherical valve with stopping leak mechanism according to claim 1 and 2 is characterized in that, this stopping leak mechanism comprises:
A valve seat, this valve seat are placed in this valve chamber; This valve seat is circular, and along the top of circumferential surface and the bottom all to center of circle indent and in axial stepped evagination; This valve seat is constituted by metal material;
An adapter ring, this adapter ring is stepped; This adapter ring is positioned at this nearly valve body place, valve seat top, and is sleeved in this valve body; And this adapter ring becomes a space that the elasticity enough and to spare is provided with this valve seat intersection;
One first stopping leak pressure ring, this first stopping leak pressure ring have a vee-cut in the form of a ring in the intermediate portion; This first stopping leak pressure ring is positioned on this valve seat, and this first stopping leak pressure ring bottom contacts this adapter ring;
One second stopping leak pressure ring, this second stopping leak pressure ring have a flange in the form of a ring in the intermediate portion, wherein this flange is to the shape of vee-cut that should the first stopping leak pressure ring; This second stopping leak pressure ring is positioned on this valve seat, and this second stopping leak pressure ring flange sleeve is should the vee-cut of the first stopping leak pressure ring;
Wherein this second stopping leak pressure ring is that elastic material is made, when this second stopping leak pressure ring is extruded, makes each element in the above-mentioned stopping leak mechanism form drive fit;
One provides the shell fragment of elasticity enough and to spare with the distortion that other elements were produced that diminishes, this shell fragment in the form of a ring, this shell fragment is positioned on this valve seat, and this second stopping leak pressure ring of conflicting;
Wherein this adapter ring is positioned on this valve seat, and this adapter ring and this valve seat intersection are to form one to reduce the space of rotating the needed torsion of valve member, this first stopping leak pressure ring is inserted in this valve body, and this first stopping leak pressure ring bottom contacts this adapter ring, this second stopping leak pressure ring flange sleeve is should the vee-cut of the first stopping leak pressure ring, this shell fragment is positioned on this valve seat, and this second stopping leak pressure ring of conflicting.
6. the semispherical valve with stopping leak mechanism according to claim 5 is characterized in that this adapter ring is constituted by elastic material, and this elastic material is a kind of among silica gel or graphite or the PTEF.
7. the semispherical valve with stopping leak mechanism according to claim 5 is characterized in that, this first stopping leak pressure ring is constituted by elastic material, and this elastic material is a kind of among silica gel or graphite or the PTEF.
8. the semispherical valve with stopping leak mechanism according to claim 5 is characterized in that, this second stopping leak pressure ring is constituted by elastic material, and this elastic material is a kind of among silica gel or graphite or the PTEF.
9. the semispherical valve with stopping leak mechanism according to claim 1 is characterized in that, this stopping leak mechanism comprises:
A valve seat, this valve seat are placed in this valve chamber; It is circular that this valve seat slightly is, and a chase is arranged along the inboard at the top of circumferential surface and inwardly contract away from the outboard shafts of valve body, and the inner shafts of nearly valve body is stepped to evagination; This valve seat is the assembly of PTFE material manufacturing;
Wherein the caliber bottom surface of this side cover body is convexly equipped with a flange; This flange engages the chase of this valve seat.
10. the semispherical valve with stopping leak mechanism according to claim 1 is characterized in that, this valve member is any in ball valve or the semispherical valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201367024U CN202048231U (en) | 2011-05-03 | 2011-05-03 | Half-ball valve with leakage preventing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201367024U CN202048231U (en) | 2011-05-03 | 2011-05-03 | Half-ball valve with leakage preventing mechanism |
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| CN202048231U true CN202048231U (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201367024U Expired - Fee Related CN202048231U (en) | 2011-05-03 | 2011-05-03 | Half-ball valve with leakage preventing mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339454A (en) * | 2017-02-24 | 2017-11-10 | 效高岗企业有限公司 | Valve structure with elastic leakage-proof block |
| CN110220043A (en) * | 2019-06-13 | 2019-09-10 | 西安交通大学 | A kind of adaptive irrigation system pipeline impact of water hammer abatement device |
-
2011
- 2011-05-03 CN CN2011201367024U patent/CN202048231U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339454A (en) * | 2017-02-24 | 2017-11-10 | 效高岗企业有限公司 | Valve structure with elastic leakage-proof block |
| CN110220043A (en) * | 2019-06-13 | 2019-09-10 | 西安交通大学 | A kind of adaptive irrigation system pipeline impact of water hammer abatement device |
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Granted publication date: 20111123 Termination date: 20200503 |