Drainage fitting
Technical field
The present invention relates to a kind of drainage fittings as described in the preamble according to claim 1.
Background technique
From the prior art, it is known that for triggering the drainage fitting from Water flushing for cistern.Specifically, it is known that being touched for selectivity
Distribute the drainage fitting of full flushing or partial flushing.
For example, EP 0722020 shows such flushing device.For partial flushing, being disposed with can be selective
It is connected to the weighing body of valve body.
According to DE 10 2,007 001 718, it is known that another drainage fitting has the extension adjacent with float chamber.
Due to hydrostatic and fluid dynamics condition, this drainage fitting is unfavorable, because valve body is from flush position to close stance
The movement speed set quickly, when closure body hits valve seat, can generate very big noise.
Summary of the invention
According to the prior art, the purpose of the present invention is define a kind of drainage fitting that can overcome prior art disadvantage.
In particular it is preferred to purpose be define it is a kind of with lesser noise close drainage fitting.
The purpose is realized by the theme of claim 1.Accordingly, a kind of drainage fitting for water tank includes: to have
With the valve body and float of the sealing element of valve seat cooperation, wherein the valve body can be together from valve seat along central axis with sealing element
Line is moved to flush position from resting position, and is moved to resting position from flush position;And the float chamber with opening,
Valve body passes through opening and extends and be movably mounted therein, wherein the float can be in the float chamber along central axis
Movement simultaneously carries out hydraulic cooperation with the float chamber.Float chamber includes at least one control channel, by the channel, once it surrounds
The flushing water level of drainage fitting drops to the height of control channel, and the air of the perimeter from float chamber is just able to enter floating
Seed cell enables the pressure ratio between float chamber and the perimeter of float chamber balanced, wherein in pressure ratio equilibrium, float
Resting position can be moved to from flush position.Float chamber has base portion, extends entirely around central axis, and has logical
Tracheae portion, it is adjacent with base portion.It is observed transverse to central axis, the cross section for pipe portion of ventilating is less than the cross section of base portion.Float
With lower part, columnar part extends far from the lower part, and wherein float is extended to together with columnar part in ventilation pipe portion.Lower part extends
And it is moved to base portion substantially.
Float, which extends into the advantages of ventilation pipe portion, is, with the increase of float volume, the water that is pressed in float chamber on float
Ratio can reduce, thus the noise generated during reducing shutoff operation.
In addition, being less than the ventilation pipe portion of base portion by arrangement cross section, the volume of float chamber can be expanded, without to row
The structure size of water accessory or its function adversely affect.This has the advantage of can simplify closing since volume increases
The optimization of operation.
As previously mentioned, float has lower part, and middle and lower part is substantially cylindrical, especially cylinder below columnar part
Shape, and in flush position, the lower part is preferably filled with or is substantially filled with the base portion of float chamber.
Columnar part is preferably configured to float.It is particularly preferred that columnar part and lower part are substantially configured as inflatable chamber.
Statement " extending to " is interpreted as, and in flush position and resting position, columnar part all extends to ventilation pipe portion.
Statement " ventilation pipe portion " is interpreted as supplementing the part of base portion upwards in installation site.
Preferably, float or cavity are closed upward.This means that air can not be escaped from the top of float.Therefore, under
Portion and columnar part are closed upward.This means that lower part and columnar part do not have air that can pass through its opening escaped from top.Cause
This, provided float is completely enclosed upward.Therefore, advantage is that float is always subjected to floating in the case where being surrounded by water
Power.The active control of float can also be omitted.
In other words, float has closed cavity upward.Closed cavity is formed by columnar part and lower part upward.It is preferred that
Ground sees that the cavity of float is provided with the circumferential side wall extended around lower part from below;Transverse to circumferential side wall or and peripheral side
The angled transition wall extended of wall, limits the top of lower part;The circumferential direction of adjacent transition wall and laterally limiting columnar part at top
Side wall;And the roof at the top of closing columnar part.Roof angularly extends transverse to circumferential side wall or with circumferential side wall.
In this connection type, " upward " refers to the direction to look up in assembled position from valve seat, that is, refers to separate
The direction of valve seat.
In preferred variants, lower part is opened wide downward.If water tank is filled, due to the closing of lower part and columnar part upward
Still there are air in structure, lower part and columnar part.Buoyancy is provided by air.It is particularly preferred that lower part is all protected at each moment
It holds and opens wide downward, and substantially limited by the side wall of lower part.It needs to control in any way this means that not providing
To provide the opening of float function.
In the second variant, lower part also can be closed.
Preferably, valve body also has overflow pipe, and the float with columnar part and lower part extends around overflow pipe in outside, special
It is not so that overflow pipe is extended through float at center, so that columnar part and lower part have the cross section of circular ring shape.Preferably, it floats
Son is integrally formed by the roof with overflow pipe, the top of the roof limitation columnar part.
It is particularly preferred that overflow pipe extends to the top of columnar part upward, and extend bottom downward.Sealing element can be with
It is connected to overflow pipe.
Preferably, the float with columnar part and lower part does not need to carry out active control to realize the removable of float function
Dynamic component.
Preferably, the ventilation pipe portion of float chamber substantially concentrically extends to base portion.Pipe portion of ventilating and base portion are preferably same
Heart one is located on another.Wherein, it is observed transverse to central axis, the range for pipe portion of ventilating is preferably smaller than the model of base portion
It encloses.
Herein, it " concentrically " can be understood as ventilation pipe portion and base portion to extend around common central axis.Wherein,
The two are partially configured to so that they are extended concentrically about around central axis.
Preferably, the columnar part of float substantially concentrically extends to lower part.Columnar part and lower part preferably concentrically one
On another.Wherein, it is observed transverse to central axis, the range of columnar part is preferably smaller than the range of lower part.
Herein, columnar part and lower part " concentrically " is interpreted as to extend around common central axis.Wherein, the two
It is partially configured to so that they are extended concentrically about around central axis.
The inside shape of the outer shape of float with lower part and columnar part and the float chamber with base portion and ventilation pipe portion
Shape move float can in float chamber.The two shape configurations are so that they are substantially matched, and are needing
When have certain gap each other.
Preferably, from central axial direction, snorkel portion is located in the maximum gauge of base portion.Therefore, ventilation pipe portion
Diameter be less than base portion diameter.Diameter ratio between lower part and columnar part is also such.
Preferably, pipe portion of ventilating and base portion extend entirely around central axis, and preferably respectively have substantially permanent
Fixed diameter.Therefore, pipe portion of ventilating and base portion are substantially configured as cylinder, especially have border circular areas.Wherein, ventilation pipe portion
Diameter be less than base portion diameter.
Preferably, columnar part and lower part circumferentially extend completely around central axis, and preferably respectively have substantially
Constant diameter.Therefore, columnar part and lower part are substantially configured as cylinder, especially have border circular areas.Wherein, columnar part
Diameter is less than the diameter of lower part.
Preferably, the transition part ventilated between pipe portion and base portion is configured to cone.By this transition part, realize
From base portion to the reduction of the diameter of ventilation pipe portion.
Preferably, from the direction of central axis, the height of base portion is substantially less than the height for pipe portion of ventilating, wherein base
Portion is highly preferable the 5% to 20% of entire float chamber height.Therefore, it can be realized the compact arrangement of drainage fitting.
Preferably, from the direction of central axis, the height of lower part is substantially less than the height for pipe portion of ventilating, wherein under
Portion is highly preferable the 5% to 20% of entire float height.The height of entire float by lower part height and columnar part
Height forms.
Preferably, therefore, other than at least one control channel, float chamber, ventilation pipe portion and base portion are configured to utilize
Side wall is until end wall completely seals off on lateral.In downward direction, float chamber is configured as open.Preferably, in end wall
It is open in the presence of support, valve body is movably mounted in support opening.
Preferably, water tank is present in above float chamber, and water tank has the channel for leading to float chamber, wherein by this
Channel, the water energy in water tank enough flow into float chamber.Water tank is filled when filling water tank, and is configured to only pass through channel
It can be emptied when water tank empties.Water tank can also be known as water receiver.
Preferably, in flush position, the lower part of float is located substantially entirely in float chamber.That is, when triggering punching
When washing, lower part is moved substantially completely into float chamber.
It is particularly preferred that the sealing element of valve body is located substantially entirely in float chamber in flush position.Therefore, it seals
Influence of the element from the water flowed through.
Preferably, it is observed in the cross section transverse to central axis, columnar part substantially completely fills ventilation pipe portion
Cross section, or at least filling 55%, especially at least fill 75%.That is, in the cross section transverse to central axis
Observation, columnar part substantially completely or almost extend in the major part of the cross section of ventilation pipe portion.
Preferably, when float is in flush position, columnar part substantially completely fills the volume of ventilation pipe portion, or at least
Filling 55% or at least filling 90%.Herein, " substantially completely " refer to columnar part and ventilation pipe portion cloth relative to each other
It sets, so that there is residual amount always between columnar part and ventilation pipe portion.The advantages of configuration is, when float is from flush position
When being moved to resting position, the ratio for the water being pressed on float is able to maintain very little.
It is particularly preferred that between the outside of columnar part and the inside for pipe portion of ventilating, there are gaps.
Preferably, control channel is configured so that the first flushing dose triggering first is rinsed.In addition, drainage fitting includes being used for
Control the control unit of the second flushing dose.When reaching the water level for the setting of the second flushing dose, control unit is heavy using closing
It measures part and provides closing forces to the valve body, wherein the closing forces can be connected to valve body from control unit by switch element.
Preferably, when control unit increases, switch element is connect automatically into the locking with valve body.
Preferably, the height and position for closing weight part is arranged so that it can be adjusted in adjusting range.Also
It is to say, closing weight part can move in adjusting range.The water being discharged in higher position, flushing process is less than compared with low level
Set the water of discharge.
Preferably, the first flushing is to rinse completely, and the second flushing is partial flushing.That is, when weight is closed in starting
When part, meeting triggering part is rinsed, and when water level reaches control channel, can trigger complete flushing.
Alternatively, the first flushing is partial flushing, the second flushing is to rinse completely.That is, when weight part is closed in starting
When, complete flushing can be triggered, it, can triggering part flushing when water level reaches control channel.
Preferably, multiple control channels are arranged in different height and positions, and wherein drainage fitting further includes at least one pass
Element is closed, one of control channel can be opened by closing element, and other control channels can be closed.
Preferably, closing element is slide-valve, is movably mounted at the outside of drainage fitting.
Preferably, at least one control channel is arranged in ventilation pipe portion, wherein other control channels (if there is
Words) it is arranged in ventilation pipe portion and/or base portion.
Preferably, the adjusting range for closing weight part at least extends to the lower section of highest control channel in height.Cause
This, can be realized the overlapping of height between control unit and control channel, to increase the flexibility of draining adjustment.
Preferably, control unit is arranged in the outside of ventilation pipe portion and can move up and down near ventilation pipe portion.
Preferably, ventilation pipe portion includes the opening for being vented during filling float chamber.
Other embodiments are defined in dependent claims.
Detailed description of the invention
The preferred embodiment of the present invention is described below based on attached drawing, the purpose that these attached drawings are merely to illustrate, without answering
It is interpreted restrictive.In the accompanying drawings:
Fig. 1 a/1b shows the perspective view of the embodiment of drainage fitting according to the present invention;
Fig. 2 shows the sectional views according to the drainage fitting in resting position of Fig. 1;
Fig. 3 shows another sectional view of the drainage fitting in flush position according to Fig. 1;
Fig. 4 shows the schematic diagram of the drainage fitting according to the present invention in resting position;
Fig. 5 show drainage fitting according to the present invention about the schematic diagram rinsed completely;And
Fig. 6 shows the schematic diagram about partial flushing of drainage fitting according to the present invention.
Specific embodiment
In the accompanying drawings, the drainage fitting 1 for water tank is shown.Drainage fitting 1 includes having sealing element 4 and float 5
Valve body 2, the sealing element 4 and valve seat cooperate.Valve body 2 can together with sealing element 4 from valve seat 3 along central axis M from static
Position is moved to flush position, and is moved to resting position from flush position.In flush position, water energy enough passes through 3 He of valve seat
Gap outflow between sealing element 4.
In addition, drainage fitting 1 includes float chamber 6.Float chamber 6 has opening 28, and valve body 2 is extended through the opening.Valve body 2
It is movably mounted in opening 28.Float 5 moves in float chamber 6 at this substantially along central axis M, and and float chamber
6 carry out hydraulic cooperation.
Float chamber 6 is arranged so that other than at least one control channel 7, by sidewall 34 until end wall 19 is lateral
It is upper completely enclosed.Wherein, control channel 7 passes through sidewall 34.Sidewall 34 limits base portion 9 and ventilation pipe portion 10 in an outward direction.
Opening 28 is located in end wall 19.In a downward direction, float chamber 6 is open.
Float chamber 6 includes at least one control channel 7, once the flushing water level S of drainage fitting 1 is surrounded in control channel 7
Height at decline, air can from the perimeter of float chamber 68 enter float chamber 6 so that the outside of float chamber 6 and float chamber 6
Pressure ratio between region 8 can be balanced.When reaching equilibrium, float 5 or valve body 2 can be moved to rest position from flush position
It sets.
Float 5 is extended to columnar part 11 together in ventilation pipe portion 10.Therefore, it most preferably utilizes related to being promoted and being reduced
Volume, and the movement of valve body 2 can be optimized.In the lower section of columnar part 11, float preferably has lower part 29, and lower part 29 is in base
It is moved up and down in portion 9.Float 5 completely encloses upward.This means that air can be entered by the lower part 29 of float, but air is not
It may be escaped from top.
It is explained in more detail based on interior shape of the Fig. 2 and Fig. 3 to float chamber 6.Float chamber 6 include it is cylindrical,
Especially cylindrical base portion 9 and the ventilation pipe portion 10 adjacent with base portion 9, wherein base portion 9 is circumferential entirely around central axis M
Extend.Wherein, ventilation pipe portion 10 and base portion 9 are adjacent.In installation site, base portion 9 is located at the lower section of ventilation pipe portion 10, and ventilates
Pipe portion 10 is located at the top of base portion 9.In other words, ventilation pipe portion 10 extends float chamber 6 upwards from base portion 9.In upward direction,
Ventilation pipe portion 10 is limited by end wall 19.
Wherein, it is observed transverse to central axis M, the cross section of ventilation pipe portion 10 is less than the cross section of base portion 9.Ventilation pipe portion
10 volume is preferably greater than the volume of base portion 9.
Ventilation pipe portion 10 substantially concentrically extends to base portion 9.That is, two cylinders or cylindrical body surround public affairs respectively
Concentrically axis M extends.Pipe portion 10 of ventilating has constant diameter on its entire height H10.Equally, base portion 9 is entire high at it
It is had the same diameter on degree H9.Here, diameter refers to internal diameter.Wherein, the internal diameter of base portion 9 is greater than the internal diameter of ventilation pipe portion 10.
In the shown embodiment, the transition part 30 between base portion 9 and ventilation pipe portion 10 is in cone configuration.That is,
In the region of transition part 30, the diameter of float chamber is reduced to the small diameter of ventilation pipe portion 10 from the larger diameter of base portion 9.
The outer shape of float 5 is illustrated in more detail based on Fig. 2 and Fig. 3.The outer shape of float 5 is configured to and float
The interior shape matching or substantially similar of room 6.That is, interior shape is equal or similar with outer shape.As described herein,
If there are gaps between interior shape and outer shape, that is advantageous.
The lower part 29 of float 5 has the outer shape of cylindricality, particularly cylinder.The columnar part 11 of float 5 have cylindricality,
Especially cylindrical outer shape.The outer diameter of circular cylindrical external shape in 29 region of 11 region of columnar part and lower part is preferably
Constant.
At center, overflow pipe 33 extends through float 5.That is, columnar part 11 and lower part 29 have the interior of circular ring shape
Cross section.
It is configured to the jump of diameter herein to the transition of columnar part 11 from lower part 29.As shown, transition wall is provided,
It is closed completely upward in the region of diameter leap.Transition wall has appended drawing reference 35.
Columnar part 11 substantially concentrically extends to lower part 29.That is, two cylinders or cylindrical body surround public affairs respectively
Concentrically axis M extends.Columnar part 11 upward on it end 18 region in closed by roof 36.Roof 36 is from columnar part 11
Side wall 37 extends to the side wall 38 of overflow pipe 33.Roof 36 is closed upward, it means that it is not open.Columnar part 11 and lower part
29 have constant diameter, and wherein the diameter of columnar part 11 is less than the diameter of lower part 29.Here, diameter refers to outer diameter.
Preferably, the outer diameter of the outer diameter with sealing element 4 of lower part 29 is substantially corresponding.
In the shown embodiment, lower part 29 and columnar part 11 are each configured to cavity, so that they rise in water.Cavity court
Upper closing, enabling will not have air to escape upward from float 5 or lower part 29 and columnar part 11.Wherein, it is provided by two parts
Cavity can fill air.In the shown embodiment, cavity is configured to close and open downwards upwards.It can also be configured to be closed
Cavity.
In the shown embodiment, from the bottom up it can be seen that, the cavity of float 5 be provided with around lower part 29 extend circumferential direction
Side wall 37, transverse to circumferential side wall extend and limit lower part 29 top transition wall 35, upward abut transition wall 35 and
It laterally limits the circumferential side wall 38 of columnar part and closes the end wall 36 at the top of columnar part 11.Here in the area of lower part 29
In domain, float 5 is unlimited downward.
By the sectional view of Fig. 2 and Fig. 3, the columnar part 11 observed in the cross section transverse to central axis M is shown
It is substantially filled with the cross section of ventilation pipe portion 10.When columnar part 11 and float 5 are in flush position, filling extent is preferably at least
It is 70%.However, columnar part 11 can also fill at least the 80% of ventilation pipe portion 10, or substantially completely fill.
Based on fig. 4 to fig. 6, the various pieces feature of drainage fitting 1 according to the present invention is explained in greater detail now.
In Fig. 4, float 5 is in resting position.Wherein, sealing element 4 is pressed against on valve seat 3.When triggering first is rinsed
When, float 5 is risen by actuation part 22.Due to the cooperation between float 5 and float chamber 6, float 5 is maintained at its flush position.
Float 5 is maintained at its flush position, is down to water level shown in Fig. 5 until rinsing water level S.When reaching the water level, air energy
Float chamber 6 is enough entered by control channel 7, the hydro-cushion between float 5 and float chamber 6 is disturbed, to make float 5 along valve
The direction of seat 3 drops to resting position from flush position.
The second flushing is shown in FIG. 6.In this case float 5 is risen by actuation part 23, and actuation part 23 is control
A part of unit 12.This leads to switch element 14 and closes the engagement between weight part 13.Wherein closing weight part 13 has
Fill the form of the cup of water.Once water level shown in flushing water potential drop to Fig. 6 closes the weight of the water in weight part 13 just
It can come into force, and by switch element 14 to 5 applied force of float.Due to this power, float 5 is then from flush position along valve seat 3
Direction is moved to resting position.
As shown in the figure, columnar part 11 is arranged so that when valve body 2 is in flush position, the upper end 26 and ventilation pipe portion
10 end wall 19 keeps certain distance.Due to this distance, there can be a certain amount of residual water in float chamber 6.However, distance
Cannot be too big, otherwise closing noise will increase.
Preferably, there are certain intervals between the outside 20 of columnar part 11 and the inside 21 for pipe portion 10 of ventilating.On the one hand, should
The relative motion that gap is conducive to columnar part 11 between pipe portion 10 of ventilating.On the other hand, it is ensured that the region exists centainly always
The residual water of amount.
Ventilation pipe portion 10 and columnar part 11 are respectively relative to base portion 9 or lower part 29 and have the advantages that the configuration of reduced diameter
It is, a part, particularly closing weight part 13 of control unit 12 can extend close to ventilation pipe portion 10 downwards.Namely
It says, a part of control unit 12 can move up and down near ventilation pipe portion 10.
From the direction of central axis M, ventilation pipe portion 10 has height H10.Height H10 is greater than the height of base portion 9 herein
Spend H9.Therefore the movement routine of control unit 12 can be further increased.The height H9 of base portion 9 is substantially less than pipe portion of ventilating
Height H10.Preferably, the height H9 of base portion 9 is the 5% to 20% of entire 5 height H of float chamber.
Similar height ratio is provided between the height H29 of lower part 29 and the height H11 of columnar part 11 on float 5.
As described above, control channel 7 is configured so that the first flushing dose triggering first is rinsed.Control unit 12 is configured to control
Make the second flushing dose.First flushing dose is preferably complete flushing dose, and the second flushing dose is preferably partial flushing amount.
In the shown embodiment, multiple control channels 7 are disposed with.It is located at different height in this control channel 7.Herein
One control channel 7 is located in the upper area of ventilation pipe portion 10.Other control channels 7 are arranged in ventilation pipe portion 10.Namely
Say, in the shown embodiment, control channel 7 by be highly distributed in ventilation pipe portion 10 on.However, it is also possible to be arranged in base portion 9
Additional control channel.In this case, control channel 7 by be highly distributed in base portion 9 and ventilation pipe portion 10 on.
Drainage fitting 1 further includes at least one closing element 16, can open a corresponding control by closing element
Channel 7, and remaining control channel 7 can be closed.That is, installation personnel can limit which control is led to using closure member
Road 7 should be active control channel.Then accordingly close other control channels 7.
The setting of at least one control channel 7 is in ventilation pipe portion 10.The setting of remaining control channel 7 is in ventilation pipe portion 10 or base
In portion 9.
Closing weight part 13 can adjust according to adjusting range 15.It can be according to its height that is, closing weight part 13
It is adjusted.It can thereby determine washing water quantity appropriate.Preferably, adjusting range 15 at least extends to highest according to its height
The lower section of control channel 7.Therefore, it can be realized the overlapping of washing water quantity.
In an illustrated embodiment, control unit 12 further includes strut 24, is mounted on strut wherein closing weight part 13,
It makes it possible to and is adjusted relative to strut 24.Switch element 14 is controlled by appropriately configured control plane 25, is controlled herein
Face 25 processed is arranged on the shell near water tank 31.
Below float chamber 6, includes connecting element 26 in this drainage fitting, is provided with valve seat 3 in the connecting element 26,
Wherein connecting element 26 may be connected to water tank.Connecting element 26 has multiple through-holes 27, rinses water energy and is flowed to by these through-holes
Valve seat 3.
Above float chamber 6, there are optional water tanks 31, have the channel 32 for leading to float chamber 6.Pass through channel
32, the water energy in water tank 31 enough subsequently flows into float chamber 6.
Reference signs list
1 drainage fitting, 24 strut
2 valve body, 25 control plane
3 valve seat, 26 connecting element
4 sealing element, 27 through-hole
5 floats 28 opening
6 float chamber, 29 lower part
7 control channel, 30 transition part
31 water tank of perimeter of 8 float chambers
9 base portion, 32 channel
10 ventilation 33 overflow pipes of pipe portion
11 columnar part, 34 side wall
12 control unit, 35 transition wall
13 close 36 roof of weight part
14 switch element, 37 side wall
15 adjusting range, 38 side wall
16 closing element, 39 central axis
18 upper end S rinse water level
19 end wall H height
20 outsides
21 insides
22 actuation parts
23 actuation parts