CN113700911B - Double-waterway flushing valve capable of preventing siphon backflow - Google Patents
Double-waterway flushing valve capable of preventing siphon backflow Download PDFInfo
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- CN113700911B CN113700911B CN202110998273.XA CN202110998273A CN113700911B CN 113700911 B CN113700911 B CN 113700911B CN 202110998273 A CN202110998273 A CN 202110998273A CN 113700911 B CN113700911 B CN 113700911B
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- water
- water outlet
- valve
- siphon
- air inlet
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 226
- 238000007789 sealing Methods 0.000 claims description 34
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a double-waterway flushing valve for preventing siphon backflow, which comprises: the valve body with the water inlet end and the water outlet end comprises an outer pipe part and an inner pipe part arranged in the outer pipe part, the pipe edge of the inner pipe part is higher than the upper edge of the water outlet end, an anti-siphon valve is arranged on the inner pipe part, an air inlet component is arranged above the anti-siphon valve, the anti-siphon valve seals the bottom of the air inlet component to form a sealed water passage when the water inlet end is filled with water, the pipe edge of the water inlet end is sealed when the water inlet end generates negative pressure, the air inlet component is opened to cut off siphonage, the pipe opening of the inner pipe part is higher than the upper edge of the water inlet of the water outlet end by improving the height of the inner pipe part, residual water at the water outlet end cannot flow into the water inlet end beyond the inner pipe part, the anti-siphon valve can ventilate and block the siphon along the upper position on the water inlet of the water outlet end, the water flow in the water outlet end cannot flow beyond the pipe opening height of the inner pipe opening, and the phenomenon that the toilet water flows back to the water inlet end through the water outlet end siphon is stopped.
Description
Technical Field
The invention relates to a flushing valve, in particular to a double-waterway flushing valve capable of preventing siphon backflow.
Background
The existing flushing valve comprises a water inlet pipeline, a water pumping device and a water outlet pipeline, wherein the water inlet pipeline is connected with a public water channel, the water outlet pipeline is connected with a bedpan, when the water inlet water level is higher than the water outlet end of the water outlet pipeline, and the water pumping device stops pumping water, the water outlet pipeline can generate a siphon phenomenon, in order to destroy the siphon phenomenon, a one-way valve is additionally arranged on the water outlet pipeline, so that the water inlet pipeline can normally outlet water, and the water outlet pipeline can be ensured not to flow back to a polluted water source of the water inlet pipeline.
The existing one-way valve of the flushing valve is a spring one-way valve, which is in a normally closed state with an air inlet end, namely, only when the water inlet pipeline suddenly stops water, the generated negative pressure can suck the spring towards the direction of the water inlet pipeline, the spring one-way valve can seal the water inlet pipeline to avoid water backflow of the water outlet pipeline, but when water stops, the water inlet pipeline does not suddenly generate negative pressure, but slowly generates negative pressure, so that when a certain vacuum node is reached, the spring cannot be timely sucked down, so that water of the water outlet pipeline can flow back to the water inlet pipeline, and the water of a toilet is polluted by the whole public water channel, and water use sanitation is affected.
In the existing flushing valve, the difference between the height of the water inlet end port and the height of the water outlet end port is small, and even under the condition of no water pressure, residual water at the water outlet end easily flows back to the water inlet end port.
Disclosure of Invention
The invention provides a double-waterway flushing valve capable of preventing siphon backflow, which can effectively solve the problems.
The invention is realized in the following way:
A double waterway flush valve for preventing siphon backflow, comprising:
A valve body having a water inlet end and a water outlet end, the water inlet end including an outer tube portion, and
An inner pipe part arranged inside the outer pipe part, the pipe edge of the inner pipe part is higher than the upper edge of the water outlet end,
The utility model provides a siphon control valve, be provided with on the inner tube portion, the top of siphon control valve is provided with the subassembly that admits air, the siphon control valve is in the intake end is intake the time seal the bottom of subassembly that admits air, and intake end produces the negative pressure time seal the pipe edge of intake end, the siphon control valve includes:
An elastic pressing member which is pressed against the pipe edge of the water inlet end under the self weight or when the water inlet end generates negative pressure, and
A closing presser arranged above the elastic presser, the closing presser
The water flow pressure of the water inlet end is pressed against the air inlet component.
As a further improvement, the anti-siphon valve further comprises a valve rod penetrating through the elastic pressing piece and the sealing pressing piece, a flow dividing head is arranged at the bottom of the valve rod, and the valve rod reciprocates along the axial direction of the air inlet assembly.
As a further improvement, the flow dividing head is of a conical structure with a conical head facing the water inlet direction of the water inlet end.
As a further improvement, the water inlet end further comprises a connecting part connected with an external water source, and the connecting part is connected with the bottom of the inner pipe part.
As a further improvement, the inner tube portion is integrally formed with the connecting portion, or the inner tube portion is detachably connected with the connecting portion.
As a further improvement, a sealing surface is arranged between the anti-siphon valve and the air inlet component, and comprises a sealing gasket clung to the air inlet component and an air inlet concave surface which is arranged in the sealing gasket and is concave to one side of the air inlet component.
As a further improvement, the air inlet assembly comprises an air inlet cover connected with the outer pipe part, a cavity arranged in the air inlet cover, a connector arranged on one side of the air inlet cover, a valve rod connected with the inner side of the cavity in a guiding manner, and a plurality of air inlets arranged on the air inlet cover.
As a further improvement, the water outlet assembly comprises a water outlet piece connected with the water outlet end, a water outlet upper cover arranged on the water outlet piece, a water stop pad connected between the water outlet upper cover and the water outlet piece, and an electromagnetic valve arranged on the water outlet upper cover, wherein the water stop pad is used for opening or closing a channel between the water outlet end and the water outlet piece.
As a further improvement, a first guide vane is arranged at the position where the outer peripheral surface of the inner pipe part is flush with the water outlet end, and a second guide vane is arranged at the position where the water outlet piece is flush with the water outlet end.
The water tank comprises the double-waterway flushing valve for preventing siphon backflow, and the water tank comprises a water inlet channel which is communicated with the water inlet end.
The beneficial effects of the invention are as follows:
According to the invention, the height of the inner pipe part is increased to be higher than the upper edge height of the water outlet end, so that the water outlet end cannot pass over the height of the inner pipe part and then flow back to the water inlet end even if backflow occurs, the phenomenon that the water flow of the water outlet end flows back to the water inlet end is stopped, the water inlet end is separated from the water outlet end, and residual water at the water outlet end cannot enter the water inlet end to pollute a water source.
When no water is fed, the anti-siphon valve seals the water inlet end through dead weight, so that the anti-siphon valve and the water inlet end are in a normally closed state, the anti-siphon valve and the air inlet assembly are in a normally open state, once negative pressure is generated at the water inlet end, the anti-siphon valve and the water inlet end can be sucked tightly in the original sealed state, and if the water outlet end generates the phenomenon of siphon water flow inertia backflow, the water cannot flow into the water inlet end, but can be discharged through the air inlet assembly through a normally open channel, and the sensitivity is higher, and meanwhile, the sealing performance is better.
According to the invention, the stroke between the anti-siphon valve and the air inlet assembly is shortened by improving the inner pipe part, so that the air inlet of the air inlet assembly can be rapidly sealed when the anti-siphon valve receives pressurized water at the water inlet end, and the water is prevented from seeping out from the air inlet to cause waste; when negative pressure is generated, the inner pipe part can be rapidly closed, and water at the water outlet end is prevented from flowing back into the public water channel at the water inlet end.
The invention selects the elastic pressing piece which is elastic, when the inner pipe part generates negative pressure, the pipe edge of the inner pipe part can be tightly attached, the pipe edge is sealed in a concave mode, the sealing performance is high, and when the inner pipe part discharges water, namely the elastic pressing piece rapidly deforms, and the whole anti-siphon valve is rapidly sprung upwards, the sensitivity is high, and the anti-overflow effect is good.
The invention selects the rigid sealing pressing piece to be matched with the flexible sealing surface, when the anti-siphon valve is pressed, the rigid sealing pressing piece can be pressed against the flexible sealing surface, the combination degree of the rigid sealing pressing piece and the flexible sealing surface is improved, and the matching degree of the air inlet component and the anti-siphon valve is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a cross-sectional view of a double-waterway flushometer for preventing siphon backflow according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a dual-waterway flushing valve for preventing siphon backflow according to an embodiment of the present invention.
Fig. 3 is an exploded view of a double-waterway flushometer for preventing siphon backflow according to embodiment 1 of the present invention.
Fig. 4 is a schematic diagram of a first operating state of a dual-waterway flushometer for preventing siphon backflow according to embodiment 1 of the present invention.
Fig. 5 is a schematic diagram of a second operating state of a dual-waterway flushometer for preventing siphon backflow according to embodiment 1 of the present invention.
Fig. 6 is a schematic structural diagram of an air intake assembly according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a first baffle according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a second baffle according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a double-waterway flushing valve for preventing siphon backflow according to embodiment 2 of the present invention.
Detailed Description
For the purpose of making embodiments of the present invention fall within the scope of the present invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as referring to purposes, technical solutions and advantages of the present invention in any way. All other implementations, which can be derived by a person skilled in the art without making any inventive effort, show or imply relative importance or implicitly indicate the number of technical features indicated on the basis of the implementations in the invention. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1-9, a dual waterway flush valve for preventing siphon backflow, comprising: the valve body with the water inlet end 1 and the water outlet end 2, wherein the water inlet end 1 comprises an outer pipe part 13 and an inner pipe part 12 arranged inside the outer pipe part 13, the pipe edge of the inner pipe part 12 is higher than the upper edge of the water outlet end 2, an anti-siphon valve 3 is arranged on the inner pipe part 12, an air inlet assembly 5 is arranged above the anti-siphon valve 3, the anti-siphon valve 3 seals the bottom of the air inlet assembly 5 when the water inlet end 1 is used for water inlet, and seals the pipe edge of the water inlet end 1 when the water inlet end 1 is used for generating negative pressure, and the valve body further comprises a water outlet assembly 6.
Wherein, because the pipe edge of the inner pipe 12 is higher than the upper edge of the water outlet end 2, the water flowing into the water inlet end 1 remained in the water outlet end 2 can be avoided, and even if the water outlet end 2 has a backflow phenomenon, the backflow is required to a certain flow and height to possibly cause the backflow to the anti-siphon valve 3 on the inner pipe 12, and the self-weight effect of the anti-siphon valve 3 can ensure that the water inlet end 1 generates negative pressure once losing water, the anti-siphon valve 3 can rapidly seal the water inlet end 1, the high design of the inner pipe 12 cooperates with the anti-siphon valve 3 capable of acting along with the self weight and pressure water, under double pipes, the backflow of the water outlet end 2 is stopped from flowing into the water inlet end 1, and the high inner pipe 12 provides sufficient buffer time for the movement of the anti-siphon valve 3.
Specifically, the anti-siphon valve 3 includes: an elastic pressing piece 32, wherein the elastic pressing piece 32 is pressed against the pipe edge of the water inlet end 1 when the water inlet end 1 generates negative pressure, and a closing pressing piece 33 arranged above the elastic pressing piece 32 closes the pressing piece 33, and the closing pressing piece 33 is pressed against the air inlet assembly 5 under the water flow pressure of the water inlet end 1.
In order to improve the sealing effect between the sealing pressing piece 33 and the air inlet component 5, a sealing surface 4 is further disposed between the anti-siphon valve 3 and the air inlet component 5, and the sealing surface 4 includes a sealing pad 41 closely attached to the air inlet component 5, and an air inlet concave surface 42 disposed in the sealing pad 41 and concave to one side of the air inlet component 5.
Wherein, the soft elastic pressing piece 32 is matched with the pipe edge of the hard inner pipe part 12, and the hard sealing pressing piece 33 is matched with the soft sealing surface 4, so that the sealing effect of the elastic pressing piece 32 on the water inlet end 1 and the sealing effect of the sealing pressing piece 33 on the air inlet concave surface 42 of the bottom sealing surface 4 of the air inlet assembly 5 can be ensured to a great extent.
The anti-siphon valve 3 further comprises a valve rod 34 penetrating through the elastic pressing piece 32 and the closing pressing piece 33, a flow dividing head 31 is arranged at the bottom of the valve rod 34, and the valve rod 34 reciprocates along the axial direction of the air inlet assembly 5.
Specifically, the flow dividing head 31 has a conical structure with a conical head facing the water inlet direction of the water inlet end 1, so that the pressurized water flowing in from the water inlet end 1 can be divided, and the pressurized water can be dispersed and discharged along the two ends, so that turbulence or vortex is prevented from being formed at the flow dividing head 31.
Further, the water inlet end 1 further comprises a connecting portion 11 connected with an external water source, and the connecting portion 11 is connected with the bottom of the inner tube portion 12.
Further, the inner pipe 12 is integrally formed with the connecting portion 11.
Further, the air intake assembly 5 includes an air intake cover 51 connected to the outer tube 13, a cavity 52 disposed in the air intake cover 51, a joint 53 disposed at one side of the air intake cover 51, a valve rod 34 connected to the inner side of the cavity 52 in a guiding manner, and a plurality of air inlets 54 disposed on the air intake cover 51, wherein the air intake assembly 5 communicates with the external atmosphere through the air inlets 54, so as to break siphon phenomenon in the flushing valve.
Wherein, the die cavity 52 can limit the motion path of the valve rod 34, ensure the valve rod 34 to move along the vertical direction all the time, and the joint 53 can timely guide out the suction water possibly sucked in, prevent accumulation in the air inlet cover 51 to obstruct air inlet.
Further, the water outlet assembly 6 includes a water outlet member 64 connected to the water outlet end 2, a water outlet upper cover 62 disposed on the water outlet member 64, a water stop pad 63 connected between the water outlet upper cover 62 and the water outlet member 64, and an electromagnetic valve 61 disposed on the water outlet upper cover 62, wherein the water stop pad 63 is used for opening or closing a channel between the water outlet end 2 and the water outlet member 64.
Further, a first deflector 121 is disposed at a position where the outer peripheral surface of the inner pipe 12 is flush with the water outlet end 2, and a second deflector 641 is disposed at a position where the water outlet member 64 is flush with the water outlet end 2.
The first guide vane 121 can guide and split the water flow flowing from the inner tube portion 12 into the outer tube portion 13, and the second guide vane 641 can guide and split the water flow flowing from the outer tube portion 13 into the water outlet member 64, so that turbulence and turbulence phenomena can be reduced, and at the same time, impact and retention of the water flow at the time are reduced, and the flow resistance is reduced so that the water flow can pass through quickly, and meanwhile, the water flow noise is reduced.
The specific implementation process of the invention is as follows:
when the water inlet end 1 supplies water normally:
At this time, the pressurized water flows in through the connecting part 11 and flows into the inner pipe part 12, the diversion head 31 is jacked up, the diversion head 31 pushes the valve rod 34 to move upwards, the elastic pressing piece 32 and the closing pressing piece 33 sleeved on the valve rod 34 also act along with the valve rod, when the elastic pressing piece 32 is jacked up, the pressurized water can quickly flow into the outer pipe part 13 from the jacked gap, meanwhile, when the elastic pressing piece 32 is jacked up, the closing pressing piece 33 also quickly presses the sealing surface 4, the air channel between the air inlet assembly 5 and the outer pipe part 13 is closed, the water is prevented from being sprayed out from the air inlet assembly 5, and the pressurized water at this time can flow into the water outlet end 2 until the electromagnetic valve 61 opens the water stop pad 63 to output the water from the water outlet piece 64 to the bedpan for flushing.
When the water inlet end 1 suddenly loses water supply and generates negative pressure, the water inlet end comprises the following components:
When water supply is lost, the anti-siphon valve 3 instantaneously loses the support of water pressure, the anti-siphon valve can rapidly descend due to the gravity of the anti-siphon valve and the negative pressure attractive force of the anti-siphon valve, the elastic pressing piece 32 can be pressed on the pipe edge of the inner pipe 12 during descending, the sealing pressing piece 33 descends and breaks away from the sealing surface 4, so that external air can enter the outer pipe 13 through the air inlet concave surface 42 in the middle of the sealing surface 4, namely, the external air can enter the water outlet end 2 through the air inlet assembly 5 and the air inlet concave surface 42 to block siphoning, so that the water outlet end 2 loses negative pressure and can not suck dirty water communicated with toilet water in the water outlet piece 64, and due to the high design of the inner pipe 12, the water sucked by the siphoning negative pressure does not reach the pipe edge of the inner pipe 12, the elastic pressing piece 32 falls and seals the inner pipe 12, and the phenomenon that the toilet water is sucked back to the inner pipe 12 is stopped when the siphoning negative pressure is generated; when the siphon is blocked, the suction water is possibly discharged through the air inlet assembly 5 by the flow inertia through the sealing surface 4, and the negative pressure is also possibly lost immediately, and the suction water directly flows back into the toilet bowl through the water outlet piece 64.
Example 2
Referring to fig. 9, this embodiment is different from embodiment 1 in that:
The inner pipe 12 is detachably connected with the connecting part 11, so that the inner pipe 12 and the connecting part 11 can be independently detached and replaced when being independently damaged, and the whole assembly is not required to be replaced.
Example 3
The water tank comprises the double-waterway flushing valve for preventing siphon backflow, and the water tank comprises a water inlet channel which is communicated with the water inlet end 1.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A dual waterway flush valve for preventing siphon backflow, comprising: valve body with inlet end (1) and play water end (2), inlet end (1) include an outer tube portion (13), and set up inner tube portion (12) inside outer tube portion (13), the pipe edge of inner tube portion (12) is higher than the upper edge of play water end (2), be provided with on inner tube portion (12) and prevent siphon valve (3), the top of preventing siphon valve (3) is provided with inlet unit (5), prevent siphon valve (3) when inlet end (1) is intake seal the bottom of inlet unit (5), and when inlet end (1) produces negative pressure seal inlet end (1) pipe edge, prevent siphon valve (3) include: an elastic pressing piece (32), wherein the elastic pressing piece (32) is clung to the pipe edge of the water inlet end (1) under the self weight or when the water inlet end (1) generates negative pressure, and a closing pressing piece (33) arranged above the elastic pressing piece (32), and the closing pressing piece (33) is pressed against the air inlet assembly (5) under the water flow pressure of the water inlet end (1);
The anti-siphon valve (3) further comprises a valve rod (34) penetrating through the elastic pressing piece (32) and the sealing pressing piece (33), a flow dividing head (31) is arranged at the bottom of the valve rod (34), and the valve rod (34) reciprocates along the axial direction of the air inlet assembly (5);
A sealing surface (4) is further arranged between the anti-siphon valve (3) and the air inlet component (5), the sealing surface (4) comprises a sealing gasket (41) which is tightly attached to the air inlet component (5), and an air inlet concave surface (42) which is arranged in the sealing gasket (41) and is concave to one side of the air inlet component (5);
the air inlet assembly (5) comprises an air inlet cover (51) connected with the outer pipe part (13), a cavity (52) arranged in the air inlet cover (51), a joint (53) arranged on one side of the air inlet cover (51), a valve rod (34) connected with the inner side of the cavity (52) in a guiding way, and a plurality of air inlets (54) arranged on the air inlet cover (51);
The water outlet assembly (6) comprises a water outlet piece (64) connected with the water outlet end (2), a water outlet upper cover (62) arranged on the water outlet piece (64), a water stopping pad (63) connected between the water outlet upper cover (62) and the water outlet piece (64), and an electromagnetic valve (61) arranged on the water outlet upper cover (62), wherein the water stopping pad (63) is used for opening or closing a channel between the water outlet end (2) and the water outlet piece (64).
2. A double waterway flushing valve for preventing siphon backflow according to claim 1, characterized in that the said diversion head (31) is a conical structure with a conical head facing the water inlet direction of the said water inlet end (1).
3. A double waterway flushing valve for preventing siphon backflow according to claim 1, characterized in that the water inlet end (1) further comprises a connection part (11) connected with an external water source, the connection part (11) being connected with the bottom of the inner tube part (12).
4. A double waterway flushing valve for preventing siphon backflow according to claim 3, characterized in that the inner pipe part (12) is integrally formed with the connecting part (11) or the inner pipe part (12) is detachably connected with the connecting part (11).
5. The double-waterway flushing valve for preventing siphon backflow according to claim 1, wherein a first deflector (121) is arranged at a position where the outer peripheral surface of the inner tube (12) is flush with the water outlet end (2), and a second deflector (641) is arranged at a position where the water outlet member (64) is flush with the water outlet end (2).
6. A cistern comprising a double waterway flush valve for preventing siphon backflow according to any one of claims 1 to 5, characterised in that it includes a water inlet channel communicating with said water inlet end (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110998273.XA CN113700911B (en) | 2021-08-27 | 2021-08-27 | Double-waterway flushing valve capable of preventing siphon backflow |
| PCT/CN2021/133461 WO2023024297A1 (en) | 2021-08-27 | 2021-11-26 | Dual-waterway flush valve for preventing siphon backflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110998273.XA CN113700911B (en) | 2021-08-27 | 2021-08-27 | Double-waterway flushing valve capable of preventing siphon backflow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113700911A CN113700911A (en) | 2021-11-26 |
| CN113700911B true CN113700911B (en) | 2024-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110998273.XA Active CN113700911B (en) | 2021-08-27 | 2021-08-27 | Double-waterway flushing valve capable of preventing siphon backflow |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113700911B (en) |
| WO (1) | WO2023024297A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117168863B (en) * | 2023-10-31 | 2024-01-26 | 苏州市产品质量监督检验院(苏州市质量技术监督综合检验检测中心、苏州市质量认证中心) | Toilet anti-siphon test method, system and storage medium based on artificial intelligence |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN216344135U (en) * | 2021-08-27 | 2022-04-19 | 厦门帝恒诺卫浴科技有限公司 | Double-water-path flushing valve capable of preventing siphon backflow and water tank using same |
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| JP2007321544A (en) * | 2006-06-05 | 2007-12-13 | Inax Corp | Flush valve device |
| CN105612294B (en) * | 2013-07-15 | 2019-05-17 | As知识产权控股有限公司 | Self-cleaning toilet assemblies and system |
| CN205315813U (en) * | 2015-11-26 | 2016-06-15 | 佛山市法恩洁具有限公司 | Two water route pulse solenoid valve |
| CN207878583U (en) * | 2017-08-15 | 2018-09-18 | 广东顺威智能科技有限公司 | A kind of intelligent closestool bath valve assembly |
| CN207599101U (en) * | 2017-11-22 | 2018-07-10 | 乐清市康乐达新能源有限公司 | Solenoid valve, integrated flashing valve, cistern free intelligent closestool valve |
| CN208183903U (en) * | 2018-05-10 | 2018-12-04 | 乐清市富鑫电器厂 | A kind of intelligent closestool flashing valve vacuum brake |
| CN108661138A (en) * | 2018-07-18 | 2018-10-16 | 金华市宏昌电器有限公司 | A kind of impulse electromagnetic valve jettison gear |
| CN209975657U (en) * | 2018-11-16 | 2020-01-21 | 乳源南岭智能家用机械有限公司 | Integrated intelligent toilet without water tank and with vacuum breaker electromagnetic valve flushing device |
| CN109357063B (en) * | 2018-12-20 | 2024-05-24 | 宁波展鹰智能卫浴科技有限公司 | Electromagnetic valve device with backflow prevention and automatic dirt isolation functions |
| CN209540143U (en) * | 2019-01-04 | 2019-10-25 | 浙江康乐达新能源有限公司 | Solenoid valve and valve assembly |
| CN213361260U (en) * | 2020-08-28 | 2021-06-04 | 浙江康乐达新能源有限公司 | Electromagnetic valve |
-
2021
- 2021-08-27 CN CN202110998273.XA patent/CN113700911B/en active Active
- 2021-11-26 WO PCT/CN2021/133461 patent/WO2023024297A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216344135U (en) * | 2021-08-27 | 2022-04-19 | 厦门帝恒诺卫浴科技有限公司 | Double-water-path flushing valve capable of preventing siphon backflow and water tank using same |
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| Publication number | Publication date |
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| WO2023024297A1 (en) | 2023-03-02 |
| CN113700911A (en) | 2021-11-26 |
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