Waterway switching structure, closestool flushing device and closestool

Abstract

The waterway switching structure comprises a valve body and a floating body, the valve body is provided with a water storage cavity, a water inlet channel, a first water outlet and a second water outlet, and the second water outlet is communicated with the water storage cavity; the floating body is arranged in the water storage cavity; a small water passing hole is formed between the water storage cavity and the water inlet channel, when water enters the water inlet channel for the first time, the floating body is in a falling state under the action of water pressure and closes the second water outlet, part of water enters the water storage cavity through the small water passing hole, and the rest water is discharged through the first water outlet; the floating body floats after the water level of the water storage cavity reaches a preset value and first water feeding of the water inlet channel is stopped, and the second water outlet is opened and the first water outlet is closed; when water enters the water inlet channel for the second time, the floating body keeps floating under the action of water pressure, and the water enters the water storage cavity and is discharged from the second water outlet. The utility model can solve the problem of failure caused by the adoption of a limiting block for limiting in the prior art, and can prevent the first water outlet and the second water outlet from discharging water at the same time.

Description

Technical Field

[0001] The utility model relates to the field of sanitary ware, in particular to a water channel switching structure, a toilet flushing device and a toilet. Background Art

[0002] The Chinese invention patent application with application number 202310739951.X discloses a water circuit switching structure and a toilet, which uses a limit block or friction force to act on the side of the float through the water inlet flow, so that the float is limited to the initial position, that is, the second water outlet position is blocked, and water is discharged from the first water outlet. This water circuit switching structure has the following shortcomings: after the pipeline has been used for a long time, it is easy for bacteria and water films to grow on the pipe wall, making the pipe wall smooth, resulting in insufficient lateral limiting force of the limit block on the float and failure. In addition, this water circuit switching structure uses the closing of the first water flow, and the float floats up under the buoyancy of the water tank to block the first water outlet and open the second water outlet. At the same time, the water inlet waterway is opened for the second time to realize water discharge from the second water outlet, but its float is designed as an integral float. In this way, when the second water inlet is opened too quickly, it is easy for the float to enter water before it completely floats up, which may cause water to discharge from the two waterways at the same time. Utility Model Content

[0003] The utility model aims at the technical problems existing in the prior art and provides a water channel switching structure, a toilet flushing device and a toilet.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a water circuit switching structure, including a valve body and a float, the valve body is provided with a water storage chamber, a water inlet channel, a first water outlet and a second water outlet, the second water outlet is connected to the water storage chamber; the float is arranged in the water storage chamber; a water hole is arranged between the water storage chamber and the water inlet channel, when the water inlet channel is filled with water for the first time, the float is in a falling state due to the water pressure and the second water outlet is closed, a part of the water enters the water storage chamber through the water hole, and the rest of the water is discharged through the first water outlet; the float floats up after the water level in the water storage chamber reaches a preset value and the water inlet channel stops inletting for the first time, and the second water outlet is opened and the first water outlet is closed; when the water inlet channel is filled with water for the second time, the float remains floating due to the water pressure, water enters the water storage chamber, and is discharged from the second water outlet.

[0005] Furthermore, the first water outlet and the water inlet channel are respectively located above the water storage chamber, and a water outlet connected to the water inlet channel is provided on the top of the water storage chamber. The float is provided with a first blocking portion, which is fitted between the water outlet and the first water outlet, and closes the first water outlet when the float floats up, and closes the water outlet when the float falls; when the water inlet channel is filled with water for the first time, the water pressure acts downward on the first blocking portion, and when the water inlet channel is filled with water for the second time, the water pressure acts upward on the first blocking portion.

[0006] Furthermore, the water-passing holes are arranged at the top of the water storage cavity, and there are multiple water-passing holes, which are distributed around the water outlet.

[0007] Furthermore, the floating body is provided with a first extension rod passing upward through the water outlet, and the first blocking portion is provided at an end of the first extension rod.

[0008] Furthermore, the float chamber of the float is located in the lower middle part of the water storage chamber when the float is in a floating state.

[0009] Furthermore, the second water outlet is located at the bottom of the water storage chamber, and the float is provided with a second blocking portion for opening and closing the second water outlet.

[0010] Furthermore, the floating body is provided with a second extension rod extending downward, and the second blocking portion is provided at an end of the second extension rod.

[0011] Furthermore, the valve body includes an upper cover, a shell and a lower cover, the upper cover is provided with the first water outlet, the lower cover is provided with the second water outlet, the shell is provided with the water storage chamber, the water inlet channel and the water passing hole, the shell is also provided with a first connecting port connected to the water inlet channel and a second connecting port connected to the water storage chamber, the upper cover is sealed connected to the first connecting port of the shell, and the lower cover is sealed connected to the second connecting port of the shell.

[0012] The utility model further provides a toilet flushing device, including a water supply unit and also including the water circuit switching mechanism as described in the utility model above, the water supply unit includes a water tank and a water pump, the water inlet end of the water pump is connected to the water tank, and the water outlet end of the water pump is connected to the water inlet channel of the valve body, or the water supply unit includes a control valve that can control the on and off of the water circuit, the water inlet end of the control valve is connected to a water source, and the water outlet end of the control valve is connected to the water inlet channel of the valve body.

[0013] Furthermore, the control valve is a pulse valve.

[0014] The utility model further provides a toilet, including a toilet body and a toilet flushing device as described in the utility model above, wherein the first water outlet of the valve body is connected to the wash ring water path of the toilet body, and the second water outlet is connected to the injection water path of the toilet body.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. Since a small water hole is provided between the water storage chamber and the water inlet channel, when the water inlet channel is filled with water for the first time, the float is in a falling state due to the water pressure and the second water outlet is closed, a part of the water enters the water storage chamber through the small water hole, and the rest of the water is discharged through the first water outlet; the float floats up after the water level in the water storage chamber reaches a preset value and the water inlet channel stops inletting for the first time, and the second water outlet is opened and the first water outlet is closed; when the water inlet channel is filled with water for the second time, the float remains floating due to the water pressure, water enters the water storage chamber and is discharged from the second water outlet, so that the utility model completely relies on water pressure, buoyancy and deadweight of the float to control the state of the float, which can solve the failure problem of the prior art using a limit block to limit the float, and the float floats up only after the water level in the water storage chamber reaches a preset value and the water inlet channel stops inletting for the first time, which can avoid the situation where water flows out of the first water outlet and the second water outlet at the same time. In addition, when water enters the water inlet channel for the first time, part of the water flows into the water storage chamber, which helps to improve the situation where the toilet brush ring floats or splashes water onto the human body due to front-end water hammer when the water channel is suddenly opened.

[0017] 2. The float chamber of the float is located in the lower middle part of the water storage chamber when the float is in the floating state, so that the float can delay falling, thereby requiring lower precision for the second water inlet time of the water inlet channel, that is, the time difference from the first water inlet stop to the second water inlet can be set longer, thereby avoiding premature falling of the float and causing functional failure.

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; however, the water channel switching structure, toilet flushing device and toilet of the present invention are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded schematic diagram of the waterway switching structure of the utility model;

[0020] Figure 2 The three-dimensional structure of the housing of the utility model is shown in FIG. Figure 1

[0021] Figure 3 The three-dimensional structure of the housing of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the water channel switching structure of the utility model;

[0023] Figure 5 It is a cross-sectional view of the waterway switching structure of the utility model in an initial state;

[0024] Figure 6 It is a cross-sectional view of the water channel switching structure of the utility model in the first water inflow state of the water inlet channel;

[0025] Figure 7 It is a cross-sectional view of the water channel switching structure of the utility model when the water inlet channel stops inflowing for the first time;

[0026] Figure 8 It is a cross-sectional view of the water channel switching structure of the utility model in the state of the water inlet channel being filled with water for the second time;

[0027] Fig. 9 It is a three-dimensional structural schematic diagram of the water channel switching structure and the pulse valve of the utility model in a combined state;

[0028] Fig.10 It is a cross-sectional view of the hydraulic switching structure and the pulse valve of the utility model in a combined state;

[0029] Fig.11 It is a three-dimensional structural schematic diagram of the water channel switching structure and the water pump of the utility model in a combined state;

[0030] Fig.12 It is a cross-sectional view of the water channel switching structure and the water pump of the utility model in a combined state;

[0031] In the figure, 1. shell, 11. water inlet channel, 12. water storage chamber, 13. water hole, 14. water outlet, 15. first connecting port, 16. second connecting port, 2. upper cover, 21. first water outlet, 3. lower cover, 31. second water outlet, 4. float, 41. first extension rod, 42. first blocking part, 421. water sealing disk, 422. first sealing gasket, 43. second sealing gasket, 44. second extension rod, 5. first screw, 6. first sealing ring, 7. second screw, 8. second sealing ring, 9. pulse valve, 10. water pump. DETAILED DESCRIPTION

[0032] In the present utility model, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In the description, the orientation or position relationship indicated by "upper", "lower", "inner", "outer", "top / bottom", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0033] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0034] See also Figure 1-Figure 8 As shown, a waterway switching structure of the utility model comprises a valve body and a float 4. The valve body is provided with a water storage chamber 12, a water inlet channel 11, a first water outlet 21 and a second water outlet 31. The float 4 is provided in the water storage chamber 12, and a water-passing hole 13 is provided between the water storage chamber 12 and the water inlet channel 11. When the water inlet channel 11 is filled with water for the first time, the float 4 is in a falling state due to the water pressure and closes the second water outlet 31. A part of the water enters the water storage chamber 12 through the water-passing hole 13, and the rest of the water is discharged through the first water outlet 21. The float 4 floats up after the water level in the water storage chamber 12 reaches a preset value and the water inlet channel 11 stops filling with water for the first time, and opens the second water outlet 31 and closes the first water outlet 21. When the water inlet channel 11 is filled with water for the second time, the float 4 remains floating due to the water pressure, and water enters the water storage chamber 12 and is discharged from the second water outlet 31.

[0035] In this embodiment, the first water outlet 21 and the water inlet channel 11 are respectively located above the water storage chamber 12, and a water outlet 14 connected to the water inlet channel 11 is provided at the top of the water storage chamber 12. The float 4 is provided with a first blocking portion 42, which is fitted between the water outlet 14 and the first water outlet 21, and closes the first water outlet 21 when the float 4 floats up, and closes the water outlet 14 when the float 4 falls. When the water inlet channel 11 is filled with water for the first time, the water pressure acts downward on the first blocking portion 42, and when the water inlet channel 11 is filled with water for the second time, the water pressure acts upward on the first blocking portion 42. The above-mentioned water-passing holes 13 are provided at the top of the water storage chamber 12, and the number of the water-passing holes 13 is multiple, and the multiple water-passing holes 13 are distributed around the water-passing hole 14.

[0036] In this embodiment, the float 4 is provided with a first extension rod 41 passing upward through the water outlet 14, and the first blocking portion 42 is provided at the end of the first extension rod 41. The first blocking portion 42 specifically includes a water sealing disc 421 provided at the end of the first extension rod 41 and a first sealing gasket 422 sleeved on the outer periphery of the water sealing disc 421. Specifically, a circle of limiting grooves is provided on the outer periphery of the water sealing disc 421, and the first sealing gasket 422 is sleeved on the limiting groove, and the outer edges of the first sealing gasket 422 protrude from the outer peripheral surface of the water sealing disc 421, so that when the water outlet 14 is closed, it can be placed on the edges of the top of the water outlet 14. The above-mentioned second water outlet 31 is specifically located at the bottom of the water storage chamber 12, and the float 4 is provided with a second blocking portion for opening and closing the second water outlet 31. Specifically, the float 4 is provided with a second extension rod 44 extending downward, and the second blocking portion is provided at the tail of the second extension rod 44. The second blocking portion specifically includes a second sealing gasket 43 sleeved outside the end of the second extension rod 44.

[0037] In this embodiment, the float 4 is specifically a buoy structure with an open lower end, but is not limited thereto. The float cavity of the float 4 (i.e., the inner cavity of the float) is located in the lower middle part of the water storage cavity 12 when the float 4 is in the floating state. In this way, the float 4 can be delayed to fall after the first water inflow of the water inlet channel 11 stops, so that the time requirement for the second water inflow of the water inlet channel 11 is lower, that is, the time difference from the first water inflow stop to the second water inflow of the water inlet channel 11 can be set longer, thereby avoiding premature falling of the float 4 and causing functional failure.

[0038] like Figure 1-Figure 3 As shown, the valve body specifically includes an upper cover 2, a shell 1 and a lower cover 3. The upper cover 2 is provided with a first water outlet 21, the lower cover 3 is provided with a second water outlet 31, the shell 1 is provided with a water storage chamber 12, a water inlet channel 11 and a water through hole 13, the top of the shell 1 is provided with a first connection port 15 connected to the water inlet channel 11, the bottom of the shell 1 is provided with a second connection port 16 connected to the water storage chamber 12, the upper cover 2 is sealed and connected to the first connection port 15 of the shell 1, and the lower cover 3 is sealed and connected to the second connection port 16 of the shell 1. Specifically, the upper cover 2 is connected to the shell 1 by a plurality of first screws 5, and a first sealing ring 6 is matched between the two. Similarly, the lower cover 3 is connected to the shell 1 by a plurality of second screws 7, and a second sealing ring 8 is matched between the two.

[0039] The utility model provides a waterway switching structure, the initial state of which is as follows Figure 5 As shown, at this time, the water inlet channel 11 has not taken in water, the float 4 is in a falling state, and the first blocking portion 42 of the float 4 closes the water outlet 14 at the top of the water storage chamber 12, and the second blocking portion of the float 4 closes the second water outlet 31, and the water inlet channel 11 is connected to the first water outlet 21.

[0040] When water enters the water inlet channel 11 for the first time, the water first forms a full-tube dynamic water flow in the water inlet channel 11 that flows out toward the first water outlet 21, and applies a vertical downward water pressure to the first blocking portion 42 of the float 4, so that the float 4 remains in a falling state, thereby keeping the second water outlet 31 closed. At the same time, the water outlet 14 at the top of the water storage chamber 12 is closed by the first blocking portion 42, and a part of the water flow can only flow into the water storage chamber 12 from the water holes 13 around the water outlet 14. In this process, the buoyancy force on the float 4 is less than the water pressure F acting downward on the float 4. 水压 and the sum of the gravity of the float 4, so the float 4 does not float up, and the first water outlet 21 remains in the water outlet state, such as Figure 6 shown.

[0041] When the water inlet channel 11 stops inletting water for the first time, the water level in the water storage chamber 12 is also full or substantially full of water. At this time, the water pressure acting on the float 4 disappears, and the buoyancy F of the float 4 is 浮力 The floating body 4 floats up, or, although the water storage chamber 12 is not filled, as long as the buoyancy is greater than the sum of the pressure and the gravity, the floating body 4 will also float up, so that the first blocking portion 42 opens the water inlet 14 at the top of the water storage chamber 12 and closes the first water outlet 21, and at the same time, the second blocking portion of the floating body 4 opens the second water outlet 31, as shown in FIG. Figure 7 shown.

[0042] When the water inlet channel 11 is filled with water for the second time before the floating body 4 falls, the water flow first forms a full-tube dynamic water flow in the water inlet channel 11, so that the first blocking portion 42 of the floating body 4 is subjected to a vertical upward water pressure F 水压 , so that the float 4 remains in a floating state, and at the same time, water flows into the water storage chamber 12 through the water outlet 14 opened at the top of the water storage chamber 12 and the surrounding water holes 13, and is discharged from the opened second water outlet 31, such as Figure 8 shown.

[0043] Therefore, the water flow switching structure of the utility model completely relies on water pressure, buoyancy, and the self-weight of the float 4 to control the state of the float 4, which can solve the failure problem of the existing technology using a limit block to limit the float, and the float 4 will float only after the water level of the water storage chamber 12 reaches the preset value and the first water inflow of the water inlet channel 11 stops, which can avoid the situation where the first water outlet 21 and the second water outlet 31 are out of water at the same time. In particular, when the water inlet channel 11 is filled with water for the first time, a part of the water flows into the water storage chamber 12, which helps to improve the situation where the front water hammer causes the toilet brush ring to float or splash onto the human body when the water channel is suddenly opened.

[0044] The utility model provides a toilet flushing device, including a water supply unit and a water circuit switching mechanism as described above. The water supply unit includes a control valve capable of controlling the on-off of the water circuit. The control valve is preferably a pulse valve 9, but is not limited thereto. The water inlet end of the pulse valve 9 is connected to a normal pressure water source (i.e., a tap water pipe), and the water outlet end of the pulse valve 9 is connected to a water inlet channel 11 of a valve body. Fig. 9 , Fig.10 In another embodiment, the water supply unit includes a water tank (not shown) and a water pump 10, the water inlet end of the water pump 10 is connected to the water tank, and the water outlet end of the water pump 10 is connected to the water inlet channel 11 of the valve body, as shown in FIG. Fig.11 , Fig.12 shown.

[0045] A toilet of the utility model includes a toilet body and a toilet flushing device of the utility model, wherein the first water outlet 21 of the valve body is connected to the wash ring water path of the toilet body, and the second water outlet 31 is connected to the spray water path of the toilet body. The first water inflow and the second water inflow of the water inlet channel 11 refer to the first water inflow and the second water inflow performed during each flushing process of the toilet, and the timing of the first water inflow and the second water inflow of the water inlet channel 11 is controlled by reasonably controlling the start timing of the water pump.

[0046] The utility model provides a water channel switching structure, a toilet flushing device and a toilet, and the uninvolved parts are the same as the prior art or can be implemented by using the prior art.

[0047] The above embodiments are only used to further illustrate a water circuit switching structure, a toilet flushing device and a toilet of the utility model, but the utility model is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the protection scope of the technical solution of the utility model.

Claims

1. A waterway switching structure, comprising a valve body and a float, wherein the valve body is provided with a water storage chamber, a water inlet channel, a first water outlet and a second water outlet, wherein the second water outlet is connected to the water storage chamber; the float is arranged in the water storage chamber; and the characteristics are: A water hole is provided between the water storage chamber and the water inlet channel. When the water inlet channel is filled with water for the first time, the float is in a falling state due to the water pressure and the second water outlet is closed. A part of the water enters the water storage chamber through the water hole, and the rest of the water is discharged through the first water outlet. The float floats up after the water level in the water storage chamber reaches a preset value and the water inlet channel stops inflowing for the first time, and the second water outlet is opened and the first water outlet is closed. When the water inlet channel is filled with water for the second time, the float remains floating due to the water pressure, and water enters the water storage chamber and is discharged from the second water outlet.

2. The waterway switching structure according to claim 1, characterized in that: The first water outlet and the water inlet channel are respectively located above the water storage chamber. The top of the water storage chamber is provided with a water outlet connected to the water inlet channel. The float is provided with a first blocking portion, which is fitted between the water outlet and the first water outlet, and closes the first water outlet when the float floats up, and closes the water outlet when the float falls. When the water inlet channel is filled with water for the first time, the water pressure acts downward on the first blocking portion, and when the water inlet channel is filled with water for the second time, the water pressure acts upward on the first blocking portion.

3. The waterway switching structure according to claim 2, characterized in that: The water-passing holes are arranged on the top of the water storage cavity, and there are multiple water-passing holes, which are distributed around the water-passing port.

4. The waterway switching structure according to claim 2, characterized in that: The floating body is provided with a first extension rod passing upward through the water outlet, and the first blocking portion is provided at the end of the first extension rod.

5. The waterway switching structure according to claim 1, characterized in that: The float cavity of the float is located in the lower middle part of the water storage cavity when the float is in a floating state.

6. The waterway switching structure according to claim 1, characterized in that: The second water outlet is located at the bottom of the water storage chamber, and the float is provided with a second blocking portion for opening and closing the second water outlet.

7. The waterway switching structure according to claim 6, characterized in that: The floating body is provided with a second extension rod extending downward, and the second blocking portion is provided at the end of the second extension rod.

8. The waterway switching structure according to any one of claims 1 to 6, characterized in that: The valve body includes an upper cover, a shell and a lower cover. The upper cover is provided with the first water outlet, the lower cover is provided with the second water outlet, the shell is provided with the water storage chamber, the water inlet channel and the water passing hole, the shell is also provided with a first connecting port connected to the water inlet channel and a second connecting port connected to the water storage chamber, the upper cover is sealed and connected to the first connecting port of the shell, and the lower cover is sealed and connected to the second connecting port of the shell.

9. A toilet flushing device, comprising a water supply unit, characterized in that: It also includes a water circuit switching mechanism as described in any one of claims 1 to 8, the water supply unit includes a water tank and a water pump, the water inlet end of the water pump is connected to the water tank, and the water outlet end of the water pump is connected to the water inlet channel of the valve body, or the water supply unit includes a control valve that can control the on and off of the water circuit, the water inlet end of the control valve is connected to a water source, and the water outlet end of the control valve is connected to the water inlet channel of the valve body.

10. The toilet flushing device according to claim 9, characterized in that: The control valve is a pulse valve.

11. A toilet, comprising a toilet body, characterized in that: It also includes the toilet flushing device as described in claim 9 or 10, wherein the first water outlet of the valve body is connected to the wash ring water path of the toilet body, and the second water outlet is connected to the injection water path of the toilet body.

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