Closestool flushing sealing water tank device

Abstract

The utility model belongs to the technical field of closestools, and particularly relates to a closestool flushing sealing water tank device which comprises a water tank body, a water inlet valve body is installed in the water tank body, a water inlet of the water inlet valve body penetrates out of the side wall of the water tank body, and a ventilation check valve is installed at the top of the water tank body. A water outlet of the water inlet valve body is connected with a water inlet pipe which penetrates upwards from the inside of the water tank body and penetrates into the top of the water tank body, and the part, outside the water tank body, of the water inlet pipe is connected with an air isolation valve. The toilet flushing sealing water tank device has the effect of preventing water in the water tank body from being sucked back to the water supply pipeline due to negative pressure of the water supply pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of toilets, in particular to a toilet flushing sealing water tank device. Background Art

[0002] Toilets are common bathroom products and are increasingly widely used in people's daily lives. Existing toilet water tanks are mostly divided into open water tanks and sealed water tanks. Regardless of the open water tank or the sealed water tank, the existing water inlet valves are mostly installed inside the open water tank or the sealed water tank.

[0003] For an open water tank, when the water inlet valve fails, the water in the water tank can overflow from the top of the water tank, and the water will not flood the water inlet valve. However, for a sealed water tank, when the water inlet valve fails, the water will fill the water tank and flood the water inlet valve. If negative pressure occurs in the water supply pipe at this time, the water inside the sealed water tank will be sucked back, polluting the water source inside the water supply pipe.

[0004] When negative pressure appears in the water supply pipe of a sealed water tank, how to prevent the water in the sealed water tank from being sucked back is an urgent problem to be solved. Utility Model Content

[0005] In order to solve the problems in the above-mentioned background technology, the utility model provides a sealed water tank device for flushing toilets. When the water inlet valve body fails, the water tank body is filled with water. If negative pressure appears in the water supply pipe at this time, the part of the water inlet pipe passing through the water tank body from the inside of the water tank body is no longer filled with water. The air isolation valve is in an open state when there is no water pressure, and the inside of the water inlet pipe is connected with the outside world. The air isolation valve can balance the negative pressure inside the water inlet pipe when there is no water pressure, thereby preventing the water inside the water tank body from being sucked back into the water supply pipe due to the negative pressure of the water supply pipe, thereby preventing the water inside the water tank body from being sucked back into the water supply pipe and polluting the water source.

[0006] The utility model provides a sealed water tank device for flushing a toilet, comprising a water tank body, a water inlet valve body installed inside the water tank body, a water inlet of the water inlet valve body passing through a side wall of the water tank body, a breathable check valve installed on the top of the water tank body, a water outlet of the water inlet valve body connected to a water inlet pipe passing upward from the inside of the water tank body and then passing through the top of the water tank body, and a portion of the water inlet pipe placed outside the water tank body connected to an air isolation valve.

[0007] Furthermore, a first connecting pipe is connected to the bottom of the water tank body, the first connecting pipe is connected to a water pump, the water pump is connected to a second connecting pipe, the end of the second connecting pipe away from the water pump is connected to a tee, and the tee is connected to a side flushing pipe and a bottom flushing pipe.

[0008] Furthermore, the position height of the tee is higher than the preset water level height inside the water tank body, and the position height of the tee is higher than the highest water storage height inside the toilet.

[0009] Furthermore, the air isolation valve is connected to a vent pipe, and one end of the vent pipe away from the air isolation valve is placed above the breathable check valve.

[0010] Furthermore, a first valve capable of allowing liquid to flow in one direction is connected between the three-way connection and the second connecting pipe.

[0011] Furthermore, a water supply pipe is connected between the water inlet pipe and the tee.

[0012] Furthermore, the water supply pipe is installed with a second valve that enables the liquid to flow in one direction.

[0013] Furthermore, the side flush pipe is equipped with a water volume regulating valve.

[0014] Furthermore, a water outlet muffler is fixedly connected to the water outlet end of the water inlet pipe.

[0015] Furthermore, the outer wall of the water tank body is affixed with foamed polystyrene.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) When the water inlet valve body fails, the water tank body is filled with water. If negative pressure occurs in the water supply pipe at this time, the part of the water inlet pipe that passes through the water tank body from the inside of the water tank body is no longer filled with water. The air isolation valve is in an open state when there is no water pressure, and the inside of the water inlet pipe is connected to the outside. The air isolation valve can balance the negative pressure inside the water inlet pipe when there is no water pressure, thereby preventing the water inside the water tank body from being sucked back into the water supply pipe due to the negative pressure of the water supply pipe, thereby preventing the water inside the water tank body from being sucked back into the water supply pipe and polluting the water source.

[0018] (2) When the air isolation valve that supplies water from the water inlet pipe to the inside of the water tank body is closed, a small amount of water droplets may overflow through the air isolation valve. The overflowing water droplets drip through the vent pipe to the side close to the air-permeable check valve, and the water droplets flow into the inside of the water tank body through the air-permeable check valve.

[0019] (3) After the toilet is flushed, the water inlet valve body supplies water to the inside of the water tank body, and at the same time the water supply pipe supplies water to the bottom flush pipe and the side flush pipe, and the water flows into the inside of the toilet, which has the effect of achieving a water seal at the bottom of the toilet.

[0020] (4) When the water inlet pipe supplies water to the inside of the water tank body, the water outlet silencer can reduce the noise during the water outlet process of the water inlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the structure of the water inlet pipe in this embodiment;

[0024] Figure 3 Schematic diagram of the structure of the ventilation pipe in this embodiment.

[0025] Explanation of the reference numerals in the accompanying drawings: 1. Water tank body; 11. Air-permeable check valve; 2. Water inlet valve body; 3. Water inlet pipe; 31. Air isolation valve; 311. Ventilation pipe; 32. Water outlet silencer; 4. First connecting pipe; 5. Water pump; 6. Second connecting pipe; 7. Tee; 71. Side flush pipe; 711. Water volume regulating valve; 72. Bottom flush pipe; 73. First valve; 8. Water supply pipe; 81. Second valve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0027] The following is combined with Figure 1 To Attachment Figure 3 And specific embodiments describe the present invention in detail.

[0028] like Figures 1 to 3 As shown, the utility model provides a sealed water tank device for flushing toilet, comprising a water tank body 1, a water inlet valve body 2 is installed inside the water tank body 1, and the water inlet of the water inlet valve body 2 is arranged through the side wall of the water tank body 1. A breathable check valve 11 is installed on the top of the water tank body 1, and the breathable check valve 11 is used to maintain the air pressure balance inside and outside the water tank body 1 during the process of water inflow and water outflow of the water tank body 1. When the water fills the entire water tank body 1, the breathable check valve 11 is closed, and the inside of the water tank body 1 is a sealed environment.

[0029] The water outlet of the water inlet valve body 2 is fixedly connected with a water inlet pipe 3, which passes upward from the inside of the water tank body 1 and out of the water tank body 1, and then passes into the inside of the water tank body 1 from the top of the water tank body 1, and the part of the water inlet pipe 3 placed outside the water tank body 1 is fixedly connected with an air isolation valve 31. The water supply pipeline (not shown in the figure) supplies water to the inside of the water inlet pipe 3 through the water inlet valve body 2, and the water inlet pipe 3 supplies water to the inside of the water tank body 1. When the water level inside the water tank body 1 reaches a preset height, the water inlet valve body 2 is closed, and the water supply to the water tank body 1 is stopped.

[0030] During the process of the water inlet pipe 3 supplying water to the inside of the water tank body 1, the air isolation valve 31 is in a closed state under the action of the water pressure inside the water inlet pipe 3. When the water inlet valve body 2 is closed, the part of the water inlet pipe 3 that penetrates from the outside of the water tank body 1 into the water tank body 1 is no longer filled with water, and the air isolation valve 31 is in an open state.

[0031] The bottom of the side wall of the water tank body 1 is fixedly connected with a first connecting pipe 4, and the end of the first connecting pipe 4 away from the water tank is connected to a water pump 5, and the first connecting pipe 4 is connected to the water inlet of the water pump 5. The water outlet of the water pump 5 is connected to a second connecting pipe 6, and the end of the second connecting pipe 6 away from the water pump 5 is connected to a tee 7, and the height of the tee 7 is higher than the set water level inside the water tank body 1. One of the outlets of the tee 7 is connected to a side flush pipe 71, and the side flush pipe 71 is connected to the side of the toilet, and the other outlet of the tee 7 is connected to a bottom flush pipe 72, and the bottom flush pipe 72 is connected to the bottom of the toilet.

[0032] The water supply pipeline supplies water to the inside of the water tank body 1 through the water inlet valve body 2 and the water inlet pipe 3. When the water level inside the water tank body 1 reaches a preset height, the water inlet valve body 2 stops supplying water. At this time, the second connecting pipe 6 is connected to the water tank body 1 through the water pump 5 and the first connecting pipe 4, and the water level in the second connecting pipe 6 is consistent with the water level in the water tank body 1. When it is necessary to flush the toilet, the water pump 5 pumps water to the water tank body 1, and the water in the water tank body 1 passes through the first connecting pipe 4, the water pump 5, and the tee 7 and is discharged from the side flushing pipe 71 and the bottom flushing pipe 72 respectively to flush the toilet. After the flushing of the toilet is completed, the water pump 5 stops working. When the water level in the water tank body 1 does not reach the preset height, the water supply pipeline supplies water to the water tank body 1 through the water inlet valve body 2 and the water inlet pipe 3 until the water level in the water tank body 1 reaches the preset height.

[0033] When the water inlet valve body 2 fails, the water inlet valve body 2 continuously supplies water to the water tank body 1 through the water inlet pipe 3. When the water tank body 1 is full of water, the air-permeable check valve 11 is closed. Under the action of the water pressure in the water supply pipeline, the water inside the water tank body 1 passes through the first connecting pipe 4, the water pump 5, and the tee 7 and overflows through the side flushing pipe 71 and the bottom flushing pipe 72 respectively.

[0034] After the water inlet valve body 2 fails, the water tank body 1 is filled with water. If negative pressure appears in the water supply pipe at this time, the part of the water inlet pipe 3 passing through the water tank body 1 from the inside of the water tank body 1 is no longer filled with water. The air isolation valve 31 is in an open state when there is no water pressure, and the inside of the water inlet pipe 3 is connected with the outside. The air isolation valve 31 can balance the negative pressure inside the water inlet pipe 3 when there is no water pressure, thereby preventing the water inside the water tank body 1 from being sucked back into the water supply pipe due to the negative pressure of the water supply pipe, thereby preventing the water in the water tank body 1 from being sucked back and polluting the water source.

[0035] During the process of flushing the toilet, the water pump 5 provides power for the water in the water tank body 1, and when the water in the water tank body 1 overflows, overflow is achieved through the bottom flush pipe 72 and the side flush pipe 71. Compared with the existing open water tank gravity flushing, there is no need to set an overflow port at the top, which can improve the flushing effect of the toilet while reducing the installation height of the water tank body 1, thereby saving space.

[0036] The height of the tee 7 is higher than the highest water storage height inside the toilet. When the toilet is blocked and filled with dirt, the liquid level in the bottom flush pipe 72 and the side flush pipe 71 is flush with the liquid level in the toilet. The height of the tee 7 is higher than the liquid level in the toilet, which can effectively reduce the possibility of dirt in the toilet flowing back into the water tank body 1.

[0037] A first valve 73 is connected between the water inlet end of the tee 7 and the second connecting pipe 6, which can allow liquid to flow in only one direction. The first valve 73 is a first one-way valve, and can also be replaced by a flap check valve or other valves that can allow liquid to flow in only one direction. The first valve 73 can only allow water in the second connecting pipe 6 to flow into the tee 7, and the water in the tee 7 cannot flow back into the second connecting pipe 6. The first valve 73 further reduces the possibility of waste in the toilet flowing back into the water tank body 1, and can also block the siphon phenomenon caused by the backflow of liquid in the bottom flush pipe 72 and the side flush pipe 71.

[0038] A water volume regulating valve 711 is installed in the side flushing pipe 71 , and the water volume regulating valve 711 is used to regulate the amount of side flushing water flowing out of the side flushing pipe 71 , thereby reducing the possibility of splashing when flushing water in the side flushing pipe 71 .

[0039] The part of the water inlet pipe 3 outside the water tank body 1 is connected with a water supply pipe 8, and one end of the water supply pipe 8 away from the water inlet pipe 3 is connected to the tee 7. After the toilet is flushed, the water inlet valve body 2 supplies water to the inside of the water tank body 1 through the water inlet pipe 3, and the water supply pipe 8 supplies water to the bottom flushing pipe 72 and the side flushing pipe 71, and the water flows into the inside of the toilet, achieving a water seal effect at the bottom of the toilet.

[0040] A second valve 81 is installed on the water supply pipe 8, which can allow the liquid to flow in only one direction. The second valve 81 is a one-way valve, which can also be replaced by a flap check valve or other valves that can allow the liquid to flow in only one direction. The second valve 81 can only allow the water in the water supply pipe 8 to flow into the tee 7, and the water in the tee 7 cannot flow back into the water supply pipe 8. The second valve 81 further reduces the possibility of waste in the toilet flowing back into the water supply pipe 8.

[0041] The air isolation valve 31 is connected to a vent pipe 311 , which is connected to the inside of the air isolation valve 31 . When there is no water pressure inside the water supply pipe, the air isolation valve 31 is in an open state, and the water inlet pipe 3 is connected to the outside through the vent pipe 311 .

[0042] The end of the ventilation pipe 311 away from the air isolation valve 31 is placed above the air-permeable check valve 11. When the water inlet pipe 3 supplies water to the inside of the water tank body 1 and the air isolation valve 31 is closed, a small amount of water droplets may overflow through the air isolation valve 31. The overflowed water droplets drip to the side close to the air-permeable check valve 11 through the ventilation pipe 311, and the water droplets flow into the inside of the water tank body 1 through the air-permeable check valve 11.

[0043] The water outlet end of the water inlet pipe 3 is fixedly connected with a water outlet muffler 32 . When the water inlet pipe 3 supplies water to the inside of the water tank body 1 , the water outlet muffler 32 can reduce the noise during the water outlet process of the water inlet pipe 3 .

[0044] The outer wall of the water tank body 1 is pasted with foamed polystyrene (not shown in the figure), which can effectively reduce the possibility of water droplets being generated on the outer wall of the water tank body 1 due to condensation.

[0045] The utility model provides a toilet flushing sealed water tank device with the following implementation principle: the water supply pipeline supplies water to the inside of the water tank body 1 through the water inlet valve body 2 and the water inlet pipe 3. When the water level in the water tank body 1 reaches a preset height, the water inlet valve body 2 stops supplying water. When the toilet needs to be flushed, the water pump 5 pumps water from the water tank body 1. The water in the water tank body 1 passes through the first connecting pipe 4, the water pump 5, and the tee 7 and is discharged from the side flushing pipe 71 and the bottom flushing pipe 72 respectively to flush the toilet. After the flushing of the toilet is completed, the water pump 5 stops working.

[0046] When the water level in the water tank body 1 does not reach the preset height, the water supply pipe supplies water to the water tank body 1 through the water inlet valve body 2 and the water inlet pipe 3 until the water level in the water tank body 1 reaches the preset height. At the same time, the water replenishment pipe 8 replenishes water to the bottom flush pipe 72 and the side flush pipe 71, and the water flows into the inside of the toilet to seal the bottom of the toilet.

[0047] When the water inlet valve body 2 fails, water is continuously supplied to the water tank body 1. When the water tank body 1 is filled with water, the air-permeable check valve 11 is closed, and the water inside the water tank body 1 overflows through the side flushing pipe 71 and the bottom flushing pipe 72 after passing through the first connecting pipe 4, the water pump 5, and the tee 7. If negative pressure occurs in the water supply pipeline at this time, the water inlet pipe 3 is no longer full of water, and the air isolation valve 31 is in an open state without water pressure, and the inside of the water inlet pipe 3 is connected to the outside. The air isolation valve 31 can balance the negative pressure inside the water inlet pipe 3 when it is opened, thereby preventing the water inside the water tank body 1 from being sucked back into the water supply pipeline due to the negative pressure of the water supply pipeline.

[0048] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A toilet flushing sealed water tank device, characterized in that: The invention comprises a water tank body (1), wherein a water inlet valve body (2) is installed inside the water tank body (1), a water inlet of the water inlet valve body (2) passes through the side wall of the water tank body (1), a breathable check valve (11) is installed on the top of the water tank body (1), a water outlet of the water inlet valve body (2) is connected to a water inlet pipe (3) passing upward from the inside of the water tank body (1) and then passing through the top of the water tank body (1), and a portion of the water inlet pipe (3) disposed outside the water tank body (1) is connected to an air isolation valve (31).

2. A toilet flushing sealed water tank device according to claim 1, characterized in that: The bottom of the water tank body (1) is connected to a first connecting pipe (4), the first connecting pipe (4) is connected to a water pump (5), the water pump (5) is connected to a second connecting pipe (6), the end of the second connecting pipe (6) away from the water pump (5) is connected to a tee (7), and the tee (7) is connected to a side flushing pipe (71) and a bottom flushing pipe (72).

3. A toilet flushing sealed water tank device according to claim 2, characterized in that: The position height of the three-way connection (7) is higher than the preset water level height inside the water tank body (1), and the position height of the three-way connection (7) is higher than the highest water storage height inside the toilet.

4. A toilet flushing sealed water tank device according to claim 1, characterized in that: The air isolation valve (31) is connected to a vent pipe (311), and one end of the vent pipe (311) away from the air isolation valve (31) is placed above the air permeable check valve (11).

5. A toilet flushing sealed water tank device according to claim 2, characterized in that: A first valve (73) capable of enabling one-way flow of liquid is connected between the three-way connection (7) and the second connecting pipe (6).

6. A toilet flushing sealed water tank device according to claim 2, characterized in that: A water supply pipe (8) is connected between the water inlet pipe (3) and the tee (7).

7. A toilet flushing sealed water tank device according to claim 6, characterized in that: The water supply pipe (8) is provided with a second valve (81) capable of enabling the liquid to flow in one direction.

8. A toilet flushing sealed water tank device according to claim 2, characterized in that: The side flush pipe (71) is installed with a water volume regulating valve (711).

9. A toilet flushing sealed water tank device according to claim 1, characterized in that: The water outlet end of the water inlet pipe (3) is fixedly connected to a water outlet silencer (32).

10. A toilet flushing sealed water tank device according to claim 1, characterized in that: The outer wall of the water tank body (1) is affixed with foamed polystyrene.

Images