CN219315911U - Anti-siphon structure of water inlet valve - Google Patents
Anti-siphon structure of water inlet valve Download PDFInfo
- Publication number
- CN219315911U CN219315911U CN202320474390.0U CN202320474390U CN219315911U CN 219315911 U CN219315911 U CN 219315911U CN 202320474390 U CN202320474390 U CN 202320474390U CN 219315911 U CN219315911 U CN 219315911U
- Authority
- CN
- China
- Prior art keywords
- water
- valve
- siphon
- inlet
- water outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to an anti-siphon structure of a water inlet valve, wherein a water inlet channel, a water outlet channel and a water stopping component are arranged in a valve body; the anti-siphon structure of the water inlet valve comprises an anti-siphon movable plug and a water blocking valve, wherein the anti-siphon movable plug is sleeved at the water outlet end of the water outlet channel of the valve body inwards and moves up and down to close and open the air inlet; the water blocking valve is arranged at the periphery of the water outlet end of the water outlet channel of the valve body, the water blocking valve is of a double-layer structure with an upper layer disc and a lower layer disc which are integrally formed, the lower layer disc is provided with a water passing seam through which water flows when the water inlet valve is in water inlet or negative pressure occurs, and the lower layer disc covers the siphon water inlet channel outwards; the water gap is covered downwards by the upper disc, so that the upward flow of water in the water tank is turned when the negative pressure is generated, and an anti-siphon structure with difficult siphon water flow is formed. The air suction valve has the advantages that air at the air inlet of the valve cover is preferentially sucked to reach the anti-siphon effect, the CL line is lifted, and the space utilization rate of the water tank is improved.
Description
Technical Field
The utility model relates to an anti-siphon structure of a water inlet valve.
Background
When water in the tap water pipeline is stopped, negative pressure can be formed in the pipeline, water in the toilet water tank can enter the tap water pipeline through the water inlet valve to form siphon, and the lower water level line in the two water inlet valve siphoning starts or siphons ends is defined as a critical water level line of the water tank, namely a CL line.
The water inlet valve of the existing water tank mostly needs to be provided with a special anti-siphon structure, for example, chinese patent CN104633211A discloses an anti-siphon structure and an anti-siphon method of the water inlet valve, a water inlet channel, a water outlet channel and a water stopping component which is movably arranged in the valve body and can be communicated with or cut off the water inlet channel are arranged in the valve body of the water inlet valve. The anti-siphon structure needs to be provided with the isolation cavity, and the water outlet position of the isolation cavity is higher than the water inlet position, so that the anti-siphon effect of the water inlet valve is effectively improved. The anti-siphon structure does not weaken the suction effect of negative pressure on water flow, so the anti-siphon plug does not preferentially suck the air in the air inlet of the valve cover.
Disclosure of Invention
The utility model aims to solve the problems, and provides an anti-siphon structure of a water inlet valve, which is free of an isolation cavity and reduces the suction effect of negative pressure on water flow, so that an anti-siphon plug can preferentially suck air at an air inlet of a valve cover to improve the anti-siphon effect, thereby improving a CL line and the space utilization rate of a water tank.
The utility model aims to realize that an anti-siphon structure of a water inlet valve is realized, a water inlet channel, a water outlet channel and a water stopping component which is movably arranged in a valve body and can be communicated with or block the water inlet channel are arranged in the valve body of the water inlet valve, a valve cover is arranged at the upper part of the valve body, and an air inlet which is communicated with the inside and the outside of the valve body is formed in the valve cover; the anti-siphon structure of the water inlet valve comprises an anti-siphon movable plug and a water blocking valve, wherein the anti-siphon movable plug is sleeved at the water outlet end of the water outlet channel of the valve body inwards and moves up and down to close and open the air inlet; the water blocking valve is arranged at the periphery of the water outlet end of the water outlet channel of the valve body, the water blocking valve is of a double-layer structure with an upper layer disc and a lower layer disc which are integrally formed, the lower layer disc is provided with a water passing seam through which water flows when the water inlet valve is in water inlet or negative pressure occurs, and the lower layer disc covers the siphon water inlet channel outwards; the water gap is covered downwards by the upper disc, so that the upward flow of water in the water tank is turned when the negative pressure is generated, and an anti-siphon structure with difficult siphon water flow is formed.
The water passing slits are circumferentially distributed along the center of the water outlet channel, and the outer diameter of the upper disc of the water blocking valve is larger than that of the water passing slits arranged on the lower disc, so that the water passing slits are completely covered downwards.
According to the utility model, the water blocking valve is approximately consistent with the water outlet position of the water outlet channel in the height direction, and the water blocking valve is not required to be higher than the water outlet position of the water outlet channel in the water inlet position, and is generally leveled.
The top and bottom surfaces of the upper disc are arc-shaped.
According to the utility model, a water blocking valve anti-drop sealing ring is sleeved between a water blocking valve and a water outlet end of a water outlet channel of a valve body.
The utility model discloses an anti-siphon movable plug, which is provided with a sealing gasket at the upper end part.
According to the utility model, aiming at the problems that an isolation cavity is required to be arranged in a traditional anti-siphon structure and water flow in a water tank is direct current from bottom to top when siphon starts, the water blocking valve is designed, the water passing seam of the lower disc is covered downwards by the upper disc, so that the water flow in the water tank is turned upwards, the water flow flowing path in the water tank is prolonged when siphon starts, the suction effect of negative pressure on water flow is weakened, the anti-siphon movable plug is enabled to suck air in the air inlet of the valve cover preferentially, and the anti-siphon effect is improved. The water blocking valve structure improves the CL line of the water inlet valve by weakening the suction effect of negative pressure on water flow.
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a partially cut-away perspective view of a fill valve in a fill state according to one embodiment of the present utility model;
FIG. 2 is a schematic view of the embodiment of FIG. 1 with a partially cut-away view of the inlet valve in the inlet position;
FIG. 3 is a schematic perspective view of the embodiment of FIG. 1 with a water inlet valve partially cut away in a siphoned state;
FIG. 4 is a schematic view of the embodiment of FIG. 1 with a water inlet valve partially broken away in a siphoned state;
FIG. 5 is a schematic perspective view of the block valve of the embodiment of FIG. 1;
fig. 6 is a schematic perspective view, partially in section, of the block valve of the embodiment of fig. 1.
In the figure, 1, a valve body; 2. a water stop assembly; 3. a valve cover; 4. an air inlet; 5. an anti-siphon removable plug; 6. a water blocking valve; 7. water passing slits; 8. a water inlet position; 9. the water outlet is positioned; 10. anti-drop sealing ring of water blocking valve; 11. and a sealing gasket.
Description of the embodiments
Referring to fig. 1 to 6, the present embodiment is an anti-siphon structure of a water inlet valve, wherein a water inlet channel, a water outlet channel and a water stopping component 2 which is movably installed in a valve body and can be communicated with or block the water inlet channel are arranged in a valve body 1 of the water inlet valve, a valve cover 3 is arranged at the upper part of the valve body, and an air inlet 4 which is communicated with the inside and the outside of the valve body is arranged on the valve cover; the anti-siphon structure of the water inlet valve comprises an anti-siphon movable plug 5 and a water blocking valve 6, wherein the anti-siphon movable plug is sleeved at the water outlet end of the water outlet channel of the valve body inwards and moves up and down so as to close and open the air inlet; the water blocking valve is arranged at the periphery of the water outlet end of the water outlet channel of the valve body, the water blocking valve is of a double-layer structure with an upper layer disc and a lower layer disc which are integrally formed, the lower layer disc is provided with a water passing seam 7 through which water flows when the water inlet valve is in water inlet or negative pressure occurs, and the lower layer disc covers the siphon water inlet channel outwards; the water gap is downwards covered by the upper disc, so that the upward flow of water in the water tank is turned when the negative pressure is generated, and an anti-siphon structure with difficult siphon water flow circulation is formed; the water passing slits are circumferentially distributed along the center of the water outlet channel, and the outer diameter of the upper disc of the water blocking valve is larger than that of the water passing slits arranged on the lower disc; the water blocking valve is approximately consistent with the water outlet position 9 of the water outlet channel in the height direction at the water inlet position 8, and the water blocking valve is not required to be higher than the water outlet position of the water outlet channel at the water inlet position; the top surface and the bottom surface of the upper disc are arc structures, a water blocking valve anti-drop sealing ring 10 is sleeved between the water blocking valve and the water outlet end of the water outlet channel of the valve body, and a sealing washer 11 is arranged at the upper end part of the anti-siphon movable plug.
In the utility model, when water is fed, referring to FIG. 2, a water stopping component in a water inlet valve opens a water inlet channel, water flow from the water inlet channel moves up an anti-siphon movable plug, the water flow flows to a water stopping valve through a water outlet hole of the anti-siphon movable plug, and normal water feeding to a water tank is realized through a water feeding slot of the water stopping valve; when the water inlet channel generates negative pressure during sudden water cut-off, referring to fig. 4, the water flow in the water tank flows upwards to touch the water blocking valve to turn, and the siphon water flow path is prolonged, so that the suction effect of the negative pressure on the water flow is weakened; simultaneously, the anti-siphon movable plug is enabled to absorb air of the valve cover air inlet preferentially and finally enter the water inlet channel to compensate the negative pressure of the water inlet channel, and the anti-siphon movable plug moves downwards and is finally completely sealed with the water outlet end pipe orifice of the valve body water outlet channel, so that the siphon is prevented.
Claims (6)
1. An anti-siphon structure of a water inlet valve is characterized in that a water inlet channel, a water outlet channel and a water stopping component (2) which is movably arranged in the valve body and can be communicated with or block the water inlet channel are arranged in a valve body (1) of the water inlet valve, a valve cover (3) is arranged at the upper part of the valve body, and an air inlet (4) which is communicated with the inside and the outside of the valve body is formed in the valve cover; the method is characterized in that: the anti-siphon structure of the water inlet valve comprises an anti-siphon movable plug (5) and a water blocking valve (6), wherein the anti-siphon movable plug is sleeved at the water outlet end of the water outlet channel of the valve body inwards and moves up and down so as to close and open the air inlet; the water blocking valve is arranged at the periphery of the water outlet end of the water outlet channel of the valve body, the water blocking valve is of a double-layer structure with an upper layer disc and a lower layer disc which are integrally formed, the lower layer disc is provided with a water slot (7) through which water flows when the water inlet valve is used for water inlet or negative pressure is generated, and the lower layer disc covers the siphon water inlet channel outwards; the water gap is covered downwards by the upper disc, so that the upward flow of water in the water tank is turned when the negative pressure is generated, and an anti-siphon structure with difficult siphon water flow is formed.
2. The anti-siphon structure of the inlet valve according to claim 1, wherein: the water passing slits are circumferentially distributed along the center of the water outlet channel, and the outer diameter of the upper disc of the water blocking valve is larger than that of the water passing slits arranged on the lower disc.
3. The anti-siphon structure of the inlet valve according to claim 1, wherein: the water blocking valve is approximately consistent with the water outlet position (9) of the water outlet channel in the height direction at the water inlet position (8).
4. The anti-siphon structure of the inlet valve according to claim 1, wherein: the top surface and the bottom surface of the upper disc are arc-shaped structures.
5. The anti-siphon structure of the inlet valve according to claim 1, wherein: a water blocking valve anti-drop sealing ring (10) is sleeved between the water blocking valve and the water outlet end of the water outlet channel of the valve body.
6. The anti-siphon structure of the inlet valve according to claim 1, wherein: the anti-siphon movable plug is provided with a sealing gasket (11) at the upper end part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320474390.0U CN219315911U (en) | 2023-03-14 | 2023-03-14 | Anti-siphon structure of water inlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320474390.0U CN219315911U (en) | 2023-03-14 | 2023-03-14 | Anti-siphon structure of water inlet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219315911U true CN219315911U (en) | 2023-07-07 |
Family
ID=87035015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320474390.0U Active CN219315911U (en) | 2023-03-14 | 2023-03-14 | Anti-siphon structure of water inlet valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219315911U (en) |
-
2023
- 2023-03-14 CN CN202320474390.0U patent/CN219315911U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102493533B (en) | Canister flush valve | |
| CN203200875U (en) | Vacuum breaker, automatic closestool flushing system and electronic closestool | |
| CN104633211A (en) | Water inlet valve anti-siphon structure and anti-siphon method | |
| CN110106948B (en) | Anti-siphon toilet cistern inlet valve | |
| CN219315911U (en) | Anti-siphon structure of water inlet valve | |
| CN206128223U (en) | Anti -siphon water intake valve | |
| CN212956794U (en) | Overflow assembly | |
| CN110117978B (en) | Water inlet valve for toilet cistern | |
| CN207880170U (en) | A kind of ball-cock assembly | |
| CN205401909U (en) | Leakage prevention exhaust valve | |
| CN109805763B (en) | Smart seat and water dispenser with same | |
| CN204879015U (en) | Row of closing air valve group slowly | |
| CN212001441U (en) | Intelligent water tank anti-siphon device | |
| CN213597137U (en) | Upper water outlet and inlet valve for toilet cistern | |
| CN111188390A (en) | Overflow device for improving overflow capacity and accelerating discharge speed of drain valve | |
| CN218152622U (en) | Water inlet valve with bypass water outlet function | |
| CN105386491A (en) | Backflow preventing water closet water inlet valve | |
| CN205136688U (en) | Low resistance backflow preventer | |
| CN220814123U (en) | Water inlet valve for toilet cistern | |
| CN209654675U (en) | A kind of through type Fluorine-lined check-valves | |
| CN210727528U (en) | Water dispenser | |
| CN214619916U (en) | Launching control device and humidifier | |
| CN215371131U (en) | Sensitive and reliable air gap anti-siphon valve | |
| CN216201037U (en) | Antiseized air valve of preventing leaking | |
| CN211290464U (en) | Floating ball with lengthened lever |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |