CN111456175A - Overflow anti-siphon valve, closestool flushing system and closestool - Google Patents

Abstract

The invention discloses an overflowable anti-siphon valve, a toilet flushing system and a toilet. The overflowable anti-siphon valve is located in the water tank of the toilet flushing system and connected to the outlet of the toilet flushing system. The water pipeline includes a valve body and an anti-siphon valve core. The valve body is provided with a cavity, and an air port, a water inlet, and a water outlet that communicate with the cavity. The anti-siphon valve core is movably arranged on the valve body. Whether the water inlet or not controls the air outlet to close or not. The overflowable anti-siphon valve of the present invention can not only destroy the siphon phenomenon formed by the water outlet pipeline of the toilet flushing system, but also can discharge the excess water when the water inflow control of the water tank fails and the water tank is continuously filled with water, so that the Therefore, the two functions of anti-siphoning and overflowing are realized, and the two functions are combined into one, so that the anti-siphoning valve of the present invention is smaller in volume, simpler in structure and more convenient in assembly.

Description

An overflowable anti-siphon valve and toilet flushing system and toilet

technical field

The invention relates to the field of sanitary ware, in particular to an overflow-preventable siphon valve, a toilet flushing system and a toilet.

Background technique

A toilet flushing system in the prior art includes a water tank, a water pumping device, and a water outlet pipeline. The water in the water tank is pumped to the water outlet pipeline through the water pumping device, and flows to the inner pipeline of the toilet through the water outlet pipeline. When the water level of the water tank is higher than the water outlet end of the water outlet pipe, and the pumping device stops pumping water, and the water outlet pipe is full of water, a siphon phenomenon will occur, sucking the water in the water tank away, causing unnecessary waste of water resources. In order to destroy the siphon phenomenon, the air introduction design is usually added at the highest point of the water outlet pipeline. During the water inlet process of the water tank, if the water inlet component fails, the water tank will continue to be filled with water. At the same time, in order to prevent the water from the water tank from flowing back into the water supply equipment, it must be ensured that the water level of the water tank is not higher than a certain water level, which must be in the water tank. The overflow design is set in the middle to allow the excess water to flow away to ensure that the water in the water tank is stable at a certain height. The anti-siphon design and overflow design of the flushing system of the toilet mentioned above are realized by different devices, resulting in large volume, complicated structure and inconvenient installation.

SUMMARY OF THE INVENTION

Aiming at the technical problems existing in the prior art, the present invention provides an overflow anti-siphon valve, a toilet flushing system and a toilet.

The technical solution adopted by the present invention to solve the technical problem is as follows: an overflowable anti-siphon valve, which is used in a toilet flushing system with a water outlet pipeline, is located in the water tank of the toilet flushing system, and is connected to the toilet The water outlet pipeline of the flushing system includes a valve body and an anti-siphon valve core. The valve body is provided with a cavity, and an air port, a water inlet and a water outlet communicating with the cavity. The anti-siphon valve core is movably arranged on the valve body. The anti-siphon valve core controls whether the air port is closed or not according to whether the water inlet is inflow or not.

Further, when water enters the water inlet, the anti-siphon valve core is pushed by the water pressure to close the air port, and when the water inlet stops water intake, the anti-siphon valve core resets and opens the air port.

Further, the air port is on the top, the water inlet is on the bottom, and the air port is vertically opposite to the water inlet, and the anti-siphon valve core is arranged on the valve body so as to be movable up and down; the water inlet When the water intake is stopped, the anti-siphon valve core relies on the self-repeating position to open the air port; the anti-siphon valve core closes the water intake port in the reset state.

Further, the number of the water outlets is two, wherein the flow rate of one water outlet is greater than the flow rate of the other water outlet.

Further, a flow restrictor is arranged in the other water outlet.

Further, the valve body includes a valve shell and a valve cover, the valve shell is provided with the water inlet and the water outlet, the valve cover is provided with the air port, the valve cover and the valve shell are connected together, and the two are enclosed. The cavity; the anti-siphon valve core can be moved up and down on the valve cover or valve shell.

Further, it also includes a water blocking cover, the water blocking cover is connected to the valve cover and is fitted above the air port, and the air port passes through the gap between the water blocking cover and the valve cover and/or Or the through holes provided on the water blocking cover lead to the outside.

Further, the anti-siphon valve core includes a valve core body and a sealing sheet, the sealing sheet is sleeved on the valve core body and located in the cavity, and a guide rod extends upward from the middle of the valve core body, and the guide rod passes upwards. The guide hole provided through the valve cover.

The present invention further provides a toilet flushing system, including a power mechanism, a water outlet pipeline, a water tank connected with a water inlet component, and the water in the water tank is output to the water outlet pipeline by the power mechanism; An overflow anti-siphon valve, the anti-siphon valve is connected to the water outlet pipeline through the water inlet and outlet of the valve body; the air port of the valve body is higher than the working water level line of the water tank, or the valve body The air port is flush with the working water level of the water tank.

Further, the power mechanism is a water pumping device, the water inlet end of the water pumping device is connected to the water tank, and the water outlet end of the water pumping device is connected to the water inlet end of the water outlet pipeline.

The present invention further provides a toilet, which includes a toilet seat, and also includes the toilet flushing system of the present invention, wherein the water outlet end of the water outlet pipeline is connected to the internal water channel of the toilet seat.

Compared with the prior art, the present invention has the following beneficial effects:

1. The anti-siphon valve of the present invention includes the valve body and the anti-siphon valve core, which can destroy the siphon phenomenon formed by the water outlet pipeline of the toilet flushing system. , when the water inflow control of the water tank fails and the water tank keeps inflowing water, the anti-siphon valve of the present invention can drain excess water and play an overflow role, thereby realizing the two functions of anti-siphoning and overflowing, and The combination of these two functions makes the present invention smaller in size, simpler in structure and more convenient in assembly.

2. The air port is on the top, the water inlet is on the bottom, and the air port is opposite to the water inlet. The anti-siphon valve core can be moved up and down on the valve body to stop the water inlet. When the water is in, the anti-siphon valve core can fall by its own weight to block the water inlet, so that the structure of the anti-siphon valve core can be designed more simply.

3. The number of the water outlets is two, and the flow rate of one water outlet is greater than the flow rate of the other water outlet, so that when the present invention is applied to a toilet with a jetting waterway and a washing ring waterway, one of the water outlets can be used for jetting. For water supply, another water outlet is used to supply water for the washing ring water circuit, so as to meet the requirements of large water flow demand for the jet water circuit and small water flow demand for the washing ring water circuit.

4. The design of the water blocking cover can prevent water from splashing out of the air port.

The present invention will be described in further detail below with reference to the accompanying drawings and embodiments; however, the overflow anti-siphon valve, toilet flushing system and toilet of the present invention are not limited to the embodiments.

Description of drawings

1 is an exploded schematic view of the overflowable anti-siphon valve of the present invention;

Figure 2 is a front view of the overflowable anti-siphon valve of the present invention;

3 is a top view of the overflowable anti-siphon valve of the present invention;

4 is an A-A sectional view of the overflowable anti-siphon valve of the present invention (water inlet state);

Fig. 5 is a cross-sectional view of the overflowable anti-siphon valve of the present invention in a state where water is stopped at the water inlet.

Fig. 6 is the sectional view of the toilet flushing system of the present invention in the water-inlet state of the water tank;

7 is a cross-sectional view of the toilet flushing system of the present invention in a state where the water pumping device is pumping;

8 is a sectional view of the toilet flushing system of the present invention in an anti-siphon state;

9 is a cross-sectional view of the toilet flushing system of the present invention in a state where the water pumping device stops pumping and the water tank continues to be filled with water;

10 is a cross-sectional view of the toilet flushing system of the present invention when the water inlet speed of the water tank is consistent with the water discharge speed.

Detailed ways

For an embodiment, please refer to FIG. 1-FIG. 5. An overflow anti-siphon valve of the present invention, used in a toilet flushing system with a water outlet pipeline, is located in the water tank of the toilet flushing system, and is Connected to the water outlet pipeline of the toilet flushing system, it includes a valve body 1, an anti-siphon valve core 2, the valve body 1 is provided with a cavity, and an air port 121, a water inlet 111, and a water outlet 112 connected to the cavity, and the anti-siphon The valve core 2 is movably arranged on the valve body 1 , and the anti-siphon valve core 2 controls whether the air port 121 is closed or not according to whether the water inlet 111 enters the water or not. Specifically, when the water inlet 111 enters water, the anti-siphon valve core 2 is pushed by the water pressure to close the air inlet 121 , as shown in FIG. 4 . When the water inlet 111 stops feeding water, the anti-siphon valve core 2 resets and opens the air port 121, and the anti-siphon valve core 2 closes the water inlet 111 in the reset state, as shown in FIG. 5 . . In this way, when water enters the water inlet, the water will not release pressure from the gap between the water inlet and the anti-siphon valve core, but can fully act on the anti-siphon valve core, thereby stably pushing the anti-siphon valve core to move toward the air port. .

In this embodiment, the air port 121 is on the top, the water inlet 111 is on the bottom, and the air port 121 and the water inlet 111 are vertically opposite to each other, and the anti-siphon valve core 2 can be moved up and down. valve body 1. When the water inlet 111 stops entering water, the anti-siphon valve core 2 relies on the self-repetitive position to open the air port 121, but it is not limited to this. In other embodiments, the anti-siphon valve core relies on elasticity to reset and open the air port.

In this embodiment, the number of the water outlets 112 is two, and the flow rate of one water outlet is greater than the flow rate of the other water outlet. Specifically, the diameter of one of the water outlets is larger than that of the other water outlet, and the other water outlet is provided with a flow restrictor 4 .

In this embodiment, the valve body 1 includes a valve shell 11 and a valve cover 12 , the valve shell 11 is provided with the water inlet 111 and the water outlet 112 , the valve cover 12 is provided with the air port 121 , and the valve cover 12 is provided with the water inlet 111 and the water outlet 112 . The valve shells 11 are connected together (the gap between the valve cover 12 and the valve shell 11 is sealed by a sealing ring 13), and the two enclose the cavity; the anti-siphon valve core 2 can be moved up and down. The valve cover 12 is not limited to this. In other implementations, the anti-siphon valve core is disposed on the valve housing so as to be movable up and down. The anti-siphon valve core 2 specifically includes a valve core body 21 and a sealing sheet 22. The sealing sheet 22 is sleeved on the valve core body 21 and located in the cavity. A guide rod 211 extends upward from the middle of the valve core body 21. The guide rod 211 passes upward through the guide hole 122 provided in the valve cover 12 . The number of the air ports 121 is multiple, and the multiple air ports 121 are distributed along the circumferential direction of the guide hole 122 at intervals.

In this embodiment, the anti-siphon valve further includes a water blocking cover 3 , the water blocking cover 3 is connected to the valve cover 12 and fitted above the air port 121 , and the air port 121 passes through the water blocking cover 3 . The gap between the cover 3 and the valve cover 12 and the through holes provided on the water blocking cover 3 lead to the outside. Specifically, the valve cover 3 is provided with a plurality of struts 123 , and the water blocking device 3 is disposed at the top of the plurality of struts 123 .

In this embodiment, the valve body 1 is provided with a first annular boss 124 extending downward on the inner side of the air port 121. When the anti-siphon valve core 2 is pushed up, the sealing sheet 22 of the anti-siphon valve core 2 and the first annular boss 124 are set up. The bottom surface of an annular boss 124 is attached, so that the anti-siphon valve core 2 can effectively close the air port 121 , as shown in FIG. 4 . The valve body 1 is provided with an upwardly extending second annular boss 113 on the inner side of its water inlet 111 . When the anti-siphon valve core 2 falls, the sealing sheet 22 of the anti-siphon valve core 2 and the second annular boss 113 are placed on top of each other. The surfaces are fitted together, so that the anti-siphon valve core 2 can effectively close the water inlet 111, as shown in FIG. 5 .

An overflow anti-siphon valve of the present invention, when applied, is connected to the water outlet pipeline 7 of the toilet flushing system, and is located in the water tank 5 of the toilet flushing system, and at the same time, the air port of the valve body is ensured 121 is higher than the working water level line of the water tank 5, or, the air port 121 of the valve body is flush with the working water level line of the water tank 5 (the air port 121 being flush with the working water level line of the water tank 5 means that the lowest point of the air port is approximately the same as the working water level line of the water tank 5). The working water level line of the water tank is flush, and when the water in the water tank reaches the working water level line, the water just does not enter the valve body from the air port), as shown in Figure 6-Figure 10. In the initial state, the anti-siphon valve core 2 closes the water inlet 111 of the valve body 1 , as shown in FIG. 6 . When the water pumping device 8 of the toilet flushing system is activated, the water in the water tank 5 is pumped to the water outlet pipe 7. When the water enters the water inlet 111 along the water outlet pipe 7, the water pushes up the anti-siphon valve core 2. , so that it closes the air port 121 of the valve body 1 to prevent water from flowing out from the air port 121, as shown in FIG. The outlet end of the water pipeline 7 flows out. When the water pumping device 8 stops pumping water, the water inlet 111 stops feeding water (that is, the water will no longer enter the cavity of the valve body through the water inlet 111. At this time, there may be a certain amount of water in the water inlet 111, but the water does not With pressure, it will not lift up the anti-siphon valve core 2), the anti-siphon valve core 2 falls under the action of its own gravity, opens the air port 121, and allows the air to enter the cavity of the valve body 1, as shown in Figure 8, Therefore, the siphon phenomenon is destroyed, and the remaining water in the water tank 5 is prevented from being sucked away from the water outlet pipeline 7 . At this time, if the cavity of the valve body 1 is in a closed state, when the water pumping device 8 stops pumping water, the water outlet pipe 7 is still full of water, and the water level in the water tank 5 is higher than the height of the water outlet end of the water outlet pipe 7 (both The height difference is H1 and H2, as shown in Figure 8), a siphon phenomenon will occur, and the water in the water tank 5 will be siphoned away through the water outlet pipe 7, resulting in unnecessary waste of water resources.

When the water inlet component 6 of the water tank 5 fails, causing the water tank 5 to be filled with water all the time, the water level of the water tank 5 rises. When the water level of the water tank 5 is higher than the air port 121 of the valve body 1, the water in the water tank 5 will enter the cavity of the valve body 1 from the air port 121, as shown in FIG. 9, and pass through the water outlet of the valve body 1. 112 is discharged, and finally discharged from the water outlet end of the water outlet pipeline 7, so as to play the role of overflow of the water tank 5. When the water inlet speed of the water tank 5 is greater than the drainage speed, the water level of the water tank 5 will continue to rise, and the drainage speed will also be accelerated at this time. When the water inlet speed of the water tank 5 is consistent with the drainage speed, the water level of the water tank 5 Raise it again to ensure that the water level at this time meets the safety requirements.

1-10, a toilet flushing system of the present invention includes a power mechanism, a water outlet pipeline 7, a water tank 5 connected with a water inlet component 6, and the water in the water tank 5 is output to the water outlet pipe by the power mechanism. Road 7; also includes the overflowable anti-siphon valve of the present invention, the anti-siphon valve is located in the water tank 5, and is connected to the water outlet pipeline through the water inlet 111 and the water outlet 112 of the valve body 1. 7; the air port 121 of the valve body is higher than the working water level line of the water tank 5, or, the air port 121 of the valve body is flush with the working water level line of the water tank 5 (the air port 121 is flush with the working water level line of the water tank 5 It means that the lowest point of the air port is roughly flush with the working water level line of the water tank, and when the water in the water tank reaches the working water level line, the water will just not enter the valve body from the air port)

In this embodiment, the power mechanism is a water pumping device 8 , the water inlet end of the water pumping device 8 is connected to the water tank 5 , and the water outlet end of the water pumping device 8 is connected to the water inlet end of the water outlet pipeline 7 .

In this embodiment, since the valve body 1 has two water outlets 112 , the water outlet pipeline 7 specifically includes a main pipeline 71 and two branch pipelines 72 , and the main pipeline 71 is connected to the water outlet of the water pumping device 8 . One end of the two pipelines 72 is connected to the two water outlets 112 of the valve body 1 one by one, respectively.

In this embodiment, the water inlet component 6 is specifically a solenoid valve, which is installed at the water inlet 111 of the water tank 5 . In other embodiments, the water inlet component is a water inlet valve, which is provided in the water tank.

A toilet flushing system of the present invention has the following working process:

The water enters the water tank 5 through the water inlet component 6. When the water level in the water tank 5 reaches the water inlet height, the water tank 5 stops water inflow, as shown in Figure 6. At this time, the anti-siphon valve core 2 is in the reset state and blocked. The water inlet 111 of the valve body 1;

When flushing, the water pumping device 8 is activated, and the water in the water tank 5 is pumped out, and the water enters the water inlet 111 of the valve body 1 through the main pipeline of the water outlet pipeline 7. Since the pumped water has a certain pressure, the anti-siphon valve core will be removed. 2 Lift up, so that the anti-siphon valve core 2 closes the air port 121 of the valve body 1, and prevents the water from flowing out of the air port 121, as shown in Figure 7; The water outlet 112 flows out, and finally flows out from each branch of the water outlet pipeline 7, as shown in FIG. 7;

When the water pumping device 8 stops pumping water, the anti-siphon valve core 2 falls down under the action of its own gravity, and the air port 121 is opened to allow air to enter the cavity of the valve body 1, as shown in FIG. 8, thereby destroying the siphon and preventing the water tank The remaining water in 5 is sucked away from the water outlet line 7. When the water inlet component 6 of the water tank 5 fails, causing the water tank 5 to be filled with water all the time, the water level of the water tank 5 rises. When the water level of the water tank 5 is higher than the air port 121 of the valve body 1, the water in the water tank 5 will enter the cavity of the valve body 1 from the air port 121, as shown in FIG. 9, and pass through the water outlet of the valve body 1. 112 is discharged, and finally discharged from the water outlet end of the water outlet pipeline 7, so as to play the role of overflow of the water tank 5. When the water inlet speed of the water tank 5 is greater than the drainage speed, the water level of the water tank 5 will continue to rise, and the drainage speed will also be accelerated at this time. When the water inlet speed of the water tank 5 is consistent with the drainage speed, the water level of the water tank 5 Raise it again to ensure that the water level at this time meets the safety requirements.

In the toilet flushing system of the present invention, the anti-siphon valve of the anti-siphon valve can not only destroy the siphon phenomenon formed by the water outlet pipeline 7 of the toilet flushing system, but also can remove the excess water when the water inlet control of the water tank 5 fails and the water tank 5 is always filled with water. The water is drained away and the overflow function is realized, thus realizing the two functions of anti-siphon and overflow, and combining these two functions into one, making the anti-siphon valve smaller in size, simpler in structure and convenient in assembly.

A toilet of the present invention includes a toilet seat, and also includes the toilet flushing system of the present invention, wherein the water outlet end of the water outlet pipeline is connected to the internal water channel of the toilet seat.

In this embodiment, the internal water circuit of the toilet seat includes a jet water circuit and a washing ring water circuit. Among the two branches of the water outlet pipeline, the branch pipe corresponding to one of the water outlets of the valve body is connected to the jet water circuit, which is connected to the valve body. The branch pipe corresponding to the other water outlet of the pipe is connected to the washing ring water circuit.

In the toilet of the present invention, the working process of the flushing system is as described above, which will not be further described here.

In the toilet of the present invention, the unrelated parts are the same as the prior art or can be realized by adopting the prior art.

The above embodiments are only used to further illustrate a kind of overflow anti-siphon valve, toilet flushing system and toilet of the present invention, but the present invention is not limited to the embodiments, and all the above embodiments are made according to the technical essence of the present invention. Any simple modifications, equivalent changes and modifications of the present invention fall within the protection scope of the technical solutions of the present invention.

Claims (11)

1. An overflow anti-siphon valve, characterized in that: the anti-siphon valve core is movably arranged on the valve body, and the siphon valve core controls whether the air port is closed or not according to whether water enters the water inlet or not.

2. The spillable anti-siphon valve of claim 1, wherein: when the water inlet intakes water, the anti-siphon valve element is pushed by water pressure to close the air port, and when the water inlet stops intaking water, the anti-siphon valve element resets and opens the air port.

3. The spillable anti-siphon valve of claim 2, wherein: the siphon valve core is arranged on the valve body in a vertically movable manner; when the water inlet stopped intaking, the anti-siphon valve core relies on the dead weight to reset and opens the air mouth, the anti-siphon valve core is closed at the reset state the water inlet.

4. The spillable anti-siphon valve of claim 1, wherein: the number of the water outlets is two, and the flow of one water outlet is larger than that of the other water outlet.

5. The spillable anti-siphon valve of claim 4, wherein: and a flow limiting sheet is arranged in the other water outlet.

6. The spillable anti-siphon valve of any of claims 1-5, wherein: the valve body comprises a valve casing and a valve cover, the valve casing is provided with the water inlet and the water outlet, the valve cover is provided with the air port, the valve cover is connected with the valve casing, and the valve cover and the valve casing are enclosed into the cavity; the anti-siphon valve core can be arranged on the valve cover or the valve shell in a vertically movable mode.

7. The spillable anti-siphon valve of claim 6, wherein: the water retaining cover is connected to the valve cover and matched above the air port, and the air port is communicated with the outside through a gap between the water retaining cover and the valve cover and/or a through hole formed in the water retaining cover.

8. The spillable anti-siphon valve of claim 6, wherein: the anti-siphon valve core comprises a valve core body and a sealing sheet, the sealing sheet is sleeved on the valve core body and is positioned in the cavity, a guide rod extends upwards from the middle of the valve core body, and the guide rod upwards penetrates through a guide hole formed in the valve cover.

9. A closestool flushing system comprises a power mechanism, a water outlet pipeline and a water tank connected with a water inlet component, wherein water in the water tank is conveyed to the water outlet pipeline under the action of the power mechanism; the method is characterized in that: the overflow anti-siphon valve according to any of claims 1-8, further comprising an anti-siphon valve located in the tank and connected to the outlet line through the inlet and outlet ports of the valve body; the air port of the valve body is higher than the working water level line of the water tank, or the air port of the valve body is flush with the working water level line of the water tank.

10. The automatic flush system of claim 9, wherein: the power mechanism is a water pumping device, the water inlet end of the water pumping device is communicated with the water tank, and the water outlet end of the water pumping device is communicated with the water inlet end of the water outlet pipeline.

11. A toilet comprising a toilet seat and further comprising the toilet flushing system of claim 9 or 10, wherein the water outlet end of the water outlet pipeline is communicated with the internal waterway of the toilet seat.

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