CN207073173U - A kind of closestool water inlet valve backflow preventing structure - Google Patents
A kind of closestool water inlet valve backflow preventing structure Download PDFInfo
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- CN207073173U CN207073173U CN201720812004.9U CN201720812004U CN207073173U CN 207073173 U CN207073173 U CN 207073173U CN 201720812004 U CN201720812004 U CN 201720812004U CN 207073173 U CN207073173 U CN 207073173U
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Abstract
The utility model discloses a kind of closestool water inlet valve backflow preventing structure, including valve body and water intaking valve, the valve body is included into water route and water outlet path, the water intaking valve is located at into water route and including a valve seat, a force piece and an actuator, the force piece can drive actuator movable, and the actuator activity can drive valve seat action to control into water route break-make；The valve body is provided with annular brace platform, the inside and outside through hole run through and counterflow-preventing block, current enter and sequentially after valve seat, annular brace platform from water outlet path water outlet from water route is entered, the counterflow-preventing block is flexibly connected valve body and the relative valve body of energy is movable between counterflow-preventing position and sealing station, current can act on counterflow-preventing block and be located at sealing station with sealing through holes, or, the counterflow-preventing block seals annular supporting table table top when being located at counterflow-preventing position, and communicates valve body inner air and outer air by through hole.It has the following advantages that：Overflow can be prevented, water route pressurize, water hammer-resistant, counterflow-preventing, noise is small.
Description
Technical field
It the utility model is related to a kind of closestool accessory, more particularly to a kind of closestool water inlet valve backflow preventing structure.
Background technology
In order to avoid the water in cistern is back to water inlet pipe, it is anti-reverse that closestool is typically all equipped with a kind of closestool water inlet valve
Flow structure, such as CN201080015167.5, CN201510906682.7.In the CN201080015167.5, diaphragm stickiness is not
It is good, outlet pipeline meeting leak, pressure release, cause water flow and discharge pressure to reduce；Diaphragm resilience is big by influence of hydraulic pressure, hydraulic pressure
Hour, resilience is not in time, it is impossible to effective anti-return；When hydraulic pressure is big, diaphragm does not have protecting against shock effect；When water intaking valve is closed, noise
Greatly.In the CN201510906682.7, water shutoff rubber cushion is opened by water gravity, is closed by water suction force, and when hydraulic pressure is mutated, rubber cushion can be with
Variation in water pressure swings back and forth, and anti-return effect is bad；During low hydraulic pressure, suction is small, and resilience is not in time, it is impossible to effective anti-return；Enter
When water valve is closed, noise is big.In a word, in traditional backflow preventing structure, it all there are following deficiency：1st, during use to outside pipe
Spilling water is more, the water route pressure loss is big；2nd, when water inlet pipe hydraulic pressure is mutated, it is impossible to protect water inlet valve film from hydraulic blow；3、
When low hydraulic pressure, hydraulic pressure are mutated, cut off the water supply suddenly, counterflow-preventing is slow in one's movements or is unable to counterflow-preventing；4th, when water intaking valve is closed, noise is big,
Can not effective noise reduction.
Utility model content
The utility model provides a kind of closestool water inlet valve backflow preventing structure, which overcomes traditional anti-reverse in background technology
Deficiency present in flow structure.
The used technical scheme that the utility model solves its technical problem is：
A kind of closestool water inlet valve backflow preventing structure, including valve body and water intaking valve, the valve body include into water route and turn on into
The water outlet path of water route upper end, the water intaking valve be located at into water route and including a valve seat, one by cistern water level high low action energy
The force piece and an actuator of activity, the force piece can drive actuator movable, and the actuator activity can drive valve seat to act；Should
Valve body is provided with annular brace platform, the inside and outside through hole run through and counterflow-preventing block, and current enter and sequentially through valve seat, ring from water route is entered
From water outlet path water outlet after shape supporting table, the counterflow-preventing block is flexibly connected valve body and the relative valve body of energy is in counterflow-preventing position and sealing position
Movable between putting, sealing through holes when the counterflow-preventing block is located at sealing station, the counterflow-preventing block seals when being located at counterflow-preventing position
Annular brace platform table top, and communicate valve body inner air and outer air by through hole.
Among one embodiment：The through hole and annular brace platform arrange that the counterflow-preventing block is in self gravitation or/and valve up and down
Counterflow-preventing block can be located at counterflow-preventing position in the presence of entering the negative pressure in water route in vivo.
Among one embodiment：The counterflow-preventing block is fixed in the firmware portion on seal including a seal and one, and this is close
Sealing is abutted against valve interior wall with sealing through holes when sealing is in sealing station, seals and leans on when the seal is in counterflow-preventing position
Annular brace platform table top is connected on to seal annular supporting table, the firmware portion passes through and stayed between through hole and firmware portion and through hole hole wall
There is gap.
Among one embodiment：The counterflow-preventing block also includes a head being fixed on firmware portion, and the head outer diameter is more than
Through hole external diameter, it is high that the firmware portion is highly more than through hole hole.
Among one embodiment：The spacing of the annular brace platform table top and through hole top periphery and head base wall and seal bottom
The spacing adaptation of wall.
Among one embodiment：The through hole and annular brace platform consistency from top to bottom arrangement, the counterflow-preventing block can up and down companies
Connect valve body.
Among one embodiment：The water outlet path and enter water route and intersect.
Among one embodiment：The through hole is located at the position that the correspondence of valve body enters water route and water outlet path intersects, annular branch
Support platform is located at at the upper end in water route.
Among one embodiment：The valve body includes water inlet pipe, outlet pipe and upper lid；The outlet pipe includes the first pipeline, second
Pipeline and the 3rd pipeline, second pipeline are set upward, and the 3rd pipeline is set down, first pipeline, the second pipeline and
Three pipelines are connected in three-port structure；Lid closure is connected on the second pipeline upper port on this, and the through hole is opened in lid；This enters
Water pipe connects the 3rd pipeline, and the water intaking valve, annular brace platform are located at the 3rd pipeline.
Among one embodiment：The force piece includes one and slips floating drum in water inlet pipe, and the water inlet pipe is provided with inside and outside run through
Through hole, the actuator are movably connected in water inlet pipe, control whether actuator seals through hole by the height of floating drum, are by through hole
No seal control valve seat action.
Among one embodiment：Second pipeline inner wall is convexly equipped with annular flange, and the annular flange inner peripheral extends into upward
Above-mentioned annular brace platform, the annular flange inner peripheral extend into lower convex platform down, and the table top of the valve seat and lower convex platform coordinates in fact
Now cut-off.
Compared with background technology, it has the following advantages that the technical program：
Valve body is provided with annular brace platform, through hole and counterflow-preventing block；Current can act on counterflow-preventing block and be located at sealing position
Put with sealing through holes, then：Overflow can effectively be prevented, avoid or reduce water loss, water route pressure can be effectively ensured, avoid or
Reduce the pressure loss；Counterflow-preventing block seals annular supporting table table top when being located at counterflow-preventing position, and is made by through hole in valve body
Outer space gas phase is led to, then：A, when water intake valve hydraulic pressure is mutated, counterflow-preventing block can make instantaneous water of the water intaking valve from flowing back to the water come
Pressure impact, possesses water hammer-resistant function；B, enter water route low hydraulic pressure, cut off the water supply, hydraulic pressure mutation when, can effectively realize counterflow-preventing act on；
C, counterflow-preventing block can communicate in counterflow-preventing with atmospheric pressure, will not form pipeline vacuum negative pressure, and impulsive force is small, and noise is small.
Through hole and annular brace platform arrange that counterflow-preventing block enters the negative pressure in water route in self gravitation or/and valve body up and down
In the presence of counterflow-preventing block can be located at counterflow-preventing position, it is rationally distributed, it is simple in construction, compact.
Water outlet path and enter water route and intersect, through hole be located at valve body it is it is corresponding enter water route and the intersecting position of water outlet path, annular
Supporting table is located at at the upper end in water route, rationally distributed, simple in construction, compact.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a kind of partly cut-away's schematic perspective view of closestool water inlet valve backflow preventing structure.
Fig. 2 is the schematic perspective view that a kind of closestool water inlet valve backflow preventing structure is in original state.
Fig. 3 is the diagrammatic cross-section that a kind of closestool water inlet valve backflow preventing structure is in original state.
Fig. 4 is that a kind of closestool water inlet valve backflow preventing structure is in schematic perspective view into water state.
Fig. 5 is that a kind of closestool water inlet valve backflow preventing structure is in diagrammatic cross-section into water state.
Fig. 6 is the diagrammatic cross-section that a kind of closestool water inlet valve backflow preventing structure is in packing state.
Fig. 7 is the schematic perspective view that a kind of closestool water inlet valve backflow preventing structure is closed.
Fig. 8 is the diagrammatic cross-section that a kind of closestool water inlet valve backflow preventing structure is closed.
Embodiment
A kind of closestool water inlet valve backflow preventing structure, it refer to Fig. 1 to Fig. 8, including valve body 1 and water intaking valve 2.The valve body 1 wraps
Include into water route 11 and turn on the water outlet path 12 into the upper end of water route 11.The water intaking valve 2 be located at into water route 11 and including a valve seat 21,
One can be driven actuator by the movable actuator 23 of force piece 22 and one of the high low action energy of cistern water level, the force piece 22
23 activities, the activity of actuator 23 can drive valve seat 21 to act to control into the break-make of water route 11.The valve body 1 is provided with annular brace platform
13rd, the inside and outside through hole 14 and counterflow-preventing block 3 run through, current enter sequentially through valve seat 21, annular branch from the lower port of water route 11 is entered
Arranged after support platform 13 from the water outlet of water outlet path 12, the through hole 14 and annular brace platform about 13, the counterflow-preventing block 3 is flexibly connected valve
Body 1 and can relative valve body 1 it is movable between counterflow-preventing position and sealing station, current enter and sequentially from entering the lower port of water route 11
From during 12 water outlet of water outlet path after valve seat 21, annular brace platform 13, current can act on counterflow-preventing block 3 be located at sealing station with
Sealing through holes 14, counterflow-preventing block 3 can be located at counterflow-preventing position under the self gravitation effect of counterflow-preventing block 3 when other, sealing
The table top of annular brace platform 13, and communicate the inner air and outer air of valve body 1 by through hole 14.
The valve body 1 includes water inlet pipe 15, outlet pipe 16 and upper lid 17；The outlet pipe 16 is managed including the first pipeline 161, second
The pipeline 163 of road 162 and the 3rd, first pipeline 161 is horizontally disposed, and second pipeline 162 is set upward, the 3rd pipeline 163
Set down, first pipeline 161, the second pipeline 162 and the 3rd pipeline 163 are connected in three-port structure；Lid 17 seals on this
Lid is connected on the upper port of the second pipeline 162, and the through hole 14 is opened in lid 17；The water inlet pipe 15 is arranged and connects the 3rd pipe vertically
Road 163, the water intaking valve 2, annular brace platform 13 are located at the 3rd pipeline 163.Water outlet path 12 is formed in the first above-mentioned pipeline 161,
Above-mentioned water inlet pipe, the 3rd pipeline 163 are formed into water route 11, and first pipeline 161 and water inlet pipe 15 are arranged vertically, and this enters water route
11 and water outlet path 12 intersect vertically arrangement；The through hole 14 is located at lid 17, i.e. is located at the correspondence of valve body 1 and enters water route 11 and go out
The intersecting position in water route 12.The inwall of second pipeline 162 is convexly equipped with annular flange, and the annular flange inner peripheral extends into upward
The annular brace platform 13 stated, i.e. the annular brace platform 13 is located at at the upper end in water route 11.The annular flange inner peripheral is towards downward
Lower convex platform 164 is stretched into, the table top of the valve seat 21 and lower convex platform 164 coordinates realization to cut-off.
Among the present embodiment, the through hole 14 and the consistency from top to bottom of annular brace platform 13 arrangement, the counterflow-preventing block 3 can live up and down
Dynamic connection valve body 1.
The force piece 22 includes one and slips floating drum in water inlet pipe 15, and the water inlet pipe 15 is provided with the inside and outside through hole 151 run through,
The actuator 23, which can be swung, is connected to water inlet pipe 15, and floating drum is provided with a contact bar 152, the contact floating drum of contact bar 152, with logical
Contact bar 152 is crossed so that high low energy control actuator 23 is swung residing for floating drum, whether control actuator 23 seals through hole 151, controls
The whether ventable body of through hole 151 processed, realized by the way that whether through hole 151 is acted by gas control valve seat 21 into the break-make control of water route 11
System.
The counterflow-preventing block 3 includes the firmware portion 32 and one that a seal 31, one is fixed on seal 31 and is fixed in
Head 33 on part portion 32.Sealing is abutted against lid inwall with sealing through holes 14 when the seal 31 is in sealing station, should
Sealing abuts against the table top of annular brace platform 13 to seal annular supporting table 13 when seal 31 is in counterflow-preventing position；The firmware portion
32 between through hole 14 and firmware portion 32 and the hole wall of through hole 14 through leaving gap so that inside and outside valve body 1 gas can by through
Hole 14 communicates.The external diameter of head 33 is more than the external diameter of through hole 14, and the height of firmware portion 32 is more than the hole of through hole 14 height, annular branch
The spacing that the support table top of platform 12 and through hole 14 push up periphery is adapted to the spacing of the bottom wall of head 33 and the bottom wall of seal 31, so that anti-reverse
When stream block 3 is in counterflow-preventing position, head 33 is just articulated in the roof of lid 17, and now gas passes through through hole inside and outside valve body 1
14 inside and outside can connect.
In one concrete structure, the table surface height of annular brace platform 13 is not less than the endoporus topnotch of the first pipeline, to avoid
Influenceed to slide up and down guiding by flow action；The lower periphery of through hole 14 extends downwardly into perisporium, is leaned on by the sealing of seal 31
Connect perisporium end face and realize sealing, strengthen sealing property；Upper cover top surface is arranged with the open spilling water of racetrack for connecting through hole 14
Runner；The mouth of pipe of first pipeline of outlet pipe is provided with screw thread.
Fig. 2 and Fig. 3 are refer to, a kind of closestool water inlet valve backflow preventing structure is in original state, and cistern water level rises
During to cistern preset water level CL, actuator 23 is rotated up under the pushing up of floating drum (force piece) so that actuator
Seal gasket on 23 blocks the through hole 151 of water inlet pipe；For counterflow-preventing block 3 under self-gravity action, seal 31 abuts against annular
On the table top of supporting table 13, in putting adverse current position；Now the water in water inlet pipe 15 is in static pressure state, will not produce flowing；
Because the water route of outlet pipe is higher than cistern preset water level, therefore cistern is just flowed back to if having water in outlet pipe.
Refer to Fig. 4 and Fig. 5, a kind of closestool water inlet valve backflow preventing structure is in into water state, during closestool draining, closestool water
Water inside case starts to drain, when cistern water level is less than cistern preset water level CL, actuator 23 floating drum to
Rotated under lower pulling so that the seal gasket of actuator 23 leaves through hole 151, and through hole 151 communicates with air so that water intaking valve 2
Start water inlet；Current enter from the lower port of water inlet pipe 14, and upward strong thrust, counterflow-preventing are produced to the lower surface of counterflow-preventing block 3
After block 3 is jacked up, the perisporium that the bore edges of the upper limb face of seal 31 and upper lid 17 extend downwardly is leaning closely against realization sealing together,
Counterflow-preventing block 3 is in sealing station, and produces sealing under the effect of lasting hydraulic pressure；Water stays from the first pipeline 161 of outlet pipe 16
When going out, loss of liquid, the pressure loss are all minimum in valve body, are considered the first pipeline and are in packing state；In this shape
Under state, the upper end tapered protrusion of counterflow-preventing block 3 protrudes from the upper surface of lid, and user can be in water inlet by intuitive judgment water intaking valve very much
State.
Fig. 6 is refer to, a kind of closestool water inlet valve backflow preventing structure is in packing state, after toilet drain valve is closed, water inlet
Valve 2 continues opening and thinks that cistern continues moisturizing (continuing to intake), and during this, counterflow-preventing block 3 is still located by flow action
In sealing station；Sealing ring is housed between the second pipeline and upper lid, produces possess sealing effectiveness between the two.Water is from outlet pipe stream
When going out, between water inlet pipe mouth to effluent pipe mouth, due to possessing above-mentioned sealing effectiveness, the loss of liquid of whole valve body, pressure damage
Mistake is all minimum, is considered valve body and is in packing state；The beneficial effect of this pressurize is：From water inlet to delivery port
Fluid loss, the pressure loss are all minimum, can provide guarantee for the flow and pressure requirements of follow-up negative pressure flow increasing.
Fig. 7 and Fig. 8 are refer to, a kind of closestool water inlet valve backflow preventing structure is closed, or, anti-reverse stream mode, when
When water level in cistern rises towards setting water level CL, the floating drum gradually to be floated with the water surface starts to produce actuator 23
Upwards thrust so that the sealing gasket of actuator 23 moves closer to the flange of through hole 151, until blocking through hole 151 completely, makes water intaking valve
2 are closed (the water shutoff pad of valve seat 21 seals the table top of lower convex platform 164, and firmly seal under hydraulic pressure effect), to stop
Water inlet；Because the table top moment of lower convex platform 164 is enclosed, the water flowed to outlet pipe 15 is truncated suddenly, and moment can be to whole
The water outlet path of individual pressurize water outlet produces negative pressure, and water can instantaneously flow back；Under suction function, counterflow-preventing block 3 is absorbed suddenly,
So that the table top of counterflow-preventing block 3 and annular brace platform 13 produces instantaneous negative-pressure sealing, counterflow-preventing block 3 is in counterflow-preventing position, had
The current direction water inlet pipe prevented in outlet pipe of power；Especially, due to household water occur often it is unexpected into water pipe pressure
The situation of reduction, counterflow-preventing block just can be when pressure reduce, by suction function, and the table top generation of moment and annular brace platform is close
Envelope, prevents the water of cistern to be back to water inlet pipe；Especially, in the case where there is water inlet pipe dehydration, counterflow-preventing block is with regard to energy
When water inlet pipe abrupt pressure reduction is zero, by water inlet pipe suction function, moment and annular brace platform 13 produce sealing, prevent from having flowed
Water in cistern is pressed back into (backflow) water inlet pipe by strong suction function；Especially, when water route is closed, counterflow-preventing block quilt
Absorb suddenly, the gap between the through hole of the fixed part of counterflow-preventing block and upper lid, can be effectively valve body and the external world
Atmospheric pressure UNICOM, effectively eliminate and vacuum negative pressure condition formed in outlet pipe, have the advantages that can the impact of anti-non-return water, also may be used
Noise caused by reducing backwater impact.Especially, when water route hydraulic pressure is extremely low, counterflow-preventing block vertically upward can also rely on gravity work
With falling down, moment and annular brace platform 13 produce sealing, prevent toilet tank water to be back to inlet pipeline.
It is described above, only the utility model preferred embodiment, therefore the utility model implementation can not be limited according to this
Scope, i.e., the equivalent changes and modifications made according to the utility model patent scope and description, it is new all should still to belong to this practicality
In the range of type covers.
Claims (11)
1. a kind of closestool water inlet valve backflow preventing structure, including valve body and water intaking valve, the valve body includes into water route and turned on into water
The water outlet path of road upper end, the water intaking valve is located at can be lived into water route and including a valve seat, one by the high low action of cistern water level
Dynamic force piece and an actuator, the force piece can drive actuator movable, and the actuator activity can drive valve seat to act；It is special
Sign is：The valve body is provided with annular brace platform, the inside and outside through hole run through and counterflow-preventing block, and current enter and sequentially from entering water route
From water outlet path water outlet after valve seat, annular brace platform, the counterflow-preventing block is flexibly connected valve body and the relative valve body of energy is in counterflow-preventing position
It is movable between sealing station to put, and sealing through holes when the counterflow-preventing block is located at sealing station, the counterflow-preventing block is located at counterflow-preventing
Annular supporting table table top is sealed during position, and valve body inner air and outer air is communicated by through hole.
A kind of 2. closestool water inlet valve backflow preventing structure according to claim 1, it is characterised in that：The through hole and annular are propped up
Support platform to arrange up and down, the counterflow-preventing block enters counterflow-preventing block energy position in the presence of the negative pressure in water route in self gravitation or/and valve body
In counterflow-preventing position.
A kind of 3. closestool water inlet valve backflow preventing structure according to claim 1, it is characterised in that：The counterflow-preventing block includes one
Seal and one is fixed in firmware portion on seal, when the seal is in sealing station sealing be abutted against valve interior wall, should
Sealing abuts against annular brace platform table top when seal is in counterflow-preventing position, and the firmware portion is through through hole and firmware portion and passes through
Gap is left between perforation hole wall.
A kind of 4. closestool water inlet valve backflow preventing structure according to claim 3, it is characterised in that：The counterflow-preventing block also includes
One is fixed in the head on firmware portion, and the head outer diameter is more than through hole external diameter, and it is high that the firmware portion is highly more than through hole hole.
A kind of 5. closestool water inlet valve backflow preventing structure according to claim 4, it is characterised in that：The annular brace platform table top
It is adapted to the spacing of through hole top periphery with the spacing of head base wall and seal bottom wall.
A kind of 6. closestool water inlet valve backflow preventing structure according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that：This is passed through
Perforation and annular brace platform consistency from top to bottom arrangement, the counterflow-preventing block can up and down connection valve bodies.
A kind of 7. closestool water inlet valve backflow preventing structure according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that：This goes out
Water route and enter water route and intersect.
A kind of 8. closestool water inlet valve backflow preventing structure according to claim 7, it is characterised in that：The through hole is located at valve body
The position that correspondence enters water route and water outlet path intersects, the annular brace platform are located at at the upper end in water route.
A kind of 9. closestool water inlet valve backflow preventing structure according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that：The valve
Body includes water inlet pipe, outlet pipe and upper lid；The outlet pipe includes the first pipeline, the second pipeline and the 3rd pipeline, second pipeline
Set upward, the 3rd pipeline is set down, and first pipeline, the second pipeline and the 3rd pipeline are connected in three-port structure；Should
Upper lid closure is connected on the second pipeline upper port, and the through hole is opened in lid；The water inlet pipe connects the 3rd pipeline, the water inlet
Valve, annular brace platform are located at the 3rd pipeline.
A kind of 10. closestool water inlet valve backflow preventing structure according to claim 9, it is characterised in that：The force piece includes one
The floating drum in water inlet pipe is slipped, the water inlet pipe is provided with the inside and outside through hole run through, and the actuator is movably connected in water inlet pipe, by floating
Whether the height control actuator of cylinder seals through hole, and by through hole, whether seal control valve seat acts.
A kind of 11. closestool water inlet valve backflow preventing structure according to claim 9, it is characterised in that：Second pipeline inner wall
Annular flange is convexly equipped with, the annular flange inner peripheral extends into above-mentioned annular brace platform upward, the annular flange inner peripheral court
Under extend into lower convex platform, the table top of the valve seat and lower convex platform coordinates realization to cut-off.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720812004.9U CN207073173U (en) | 2017-07-06 | 2017-07-06 | A kind of closestool water inlet valve backflow preventing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720812004.9U CN207073173U (en) | 2017-07-06 | 2017-07-06 | A kind of closestool water inlet valve backflow preventing structure |
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| Publication Number | Publication Date |
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| CN207073173U true CN207073173U (en) | 2018-03-06 |
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| CN201720812004.9U Active CN207073173U (en) | 2017-07-06 | 2017-07-06 | A kind of closestool water inlet valve backflow preventing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208719A (en) * | 2017-07-06 | 2019-01-15 | 厦门松霖家居有限公司 | Closestool water inlet valve backflow preventing structure |
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2017
- 2017-07-06 CN CN201720812004.9U patent/CN207073173U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208719A (en) * | 2017-07-06 | 2019-01-15 | 厦门松霖家居有限公司 | Closestool water inlet valve backflow preventing structure |
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