Flushing valve and squat toilet
By connecting the inner cavity of the box to the water outlet pipe, timely detection of leaks in the squat toilet flushing valve and anti-siphon effect are achieved, solving the problems of squat toilet leakage and siphon, and improving the reliability and maintenance efficiency of the equipment.
Patent Information
- Application Number
- CN202522347664.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-05
AI Technical Summary
Existing squat toilets are prone to leaks between the flush valve and the domestic water pipes, and the anti-siphon structure is prone to failure, making it difficult to detect and repair in time, resulting in water leakage and backflow of pollutants.
Design a flushing valve with the inner cavity of the box connected to the outlet pipe. When a leak occurs, water flows into the inner cavity of the box and then to the outlet pipe, allowing for timely detection of the leak. The outlet pipe is connected to the atmosphere to prevent siphoning, achieving the anti-siphoning effect without the need for additional mechanical structures.
Timely detection and repair of leaks reduce water loss, prevent backflow of pollutants, improve sealing and anti-siphon effect, and simplify structure to reduce maintenance costs.
Smart Images
Figure CN224943236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bathroom equipment technology, and in particular to a flushing valve and a squat toilet. Background Technology
[0002] Squat toilets are a type of bathroom fixture that is frequently used in daily life. Existing squat toilets typically use a water tank for flushing, which is exposed on the wall, taking up bathroom space and being unsightly. Therefore, related technologies propose a tankless squat toilet that controls flushing by opening and closing a flush valve connected to the domestic water pipe. The flush valve is installed in a pre-embedded box within the wall.
[0003] To ensure the sealing between the flush valve and the domestic water pipe, O-rings or floating gaskets are usually installed between the flush valve and the domestic water pipe to form a sealing surface. However, these seals are prone to aging phenomena such as expansion, hardening, and cracking when in contact with water and chemicals in the water for a long time, which can lead to leakage between the flush valve and the domestic water pipe. Since the flush valve is embedded in the wall, it is difficult to detect the leakage in time, and the leakage can easily damage the wall where the flush valve is located.
[0004] In addition, to prevent water in the squat toilet body from flowing back to the flush valve due to siphon effect and thus causing pollution of domestic water, the flush valve is also equipped with an anti-siphon structure. The sealing performance of the anti-siphon structure relies on mechanical structures such as springs and floats. These components are prone to failure due to scale, silt blockage or material aging, thus losing the anti-siphon effect. Utility Model Content
[0005] The purpose of this utility model is to provide a flushing valve and a squat toilet to solve the problems of difficulty in timely detection of leaks between the flushing valve and the domestic water pipe and the easy failure of the anti-siphon structure.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] In a first aspect, this utility model provides a flushing valve, including a housing, a valve body, and a water outlet pipe. The housing has an opening, and the inner cavity of the housing is connected to the outside atmosphere through the opening. The valve body is disposed in the inner cavity of the housing. The first end of the water outlet pipe is connected to the outlet end of the valve body, and the first end of the water outlet pipe is also connected to the inner cavity of the housing. Water in the housing can flow from the housing to the water outlet pipe.
[0008] In one embodiment, the flushing valve further includes a water outlet branch pipe, one end of which is connected to the bottom of the box and communicates with the inner cavity of the box, and the other end of which is connected to the water outlet pipe. The height of the end of the water outlet branch pipe connected to the water outlet pipe is lower than the height of the end of the water outlet branch pipe connected to the box.
[0009] In one embodiment, the water outlet branch pipe is connected to the housing via a quick-connect fitting; and / or, the water outlet branch pipe is connected to the water outlet pipe via a quick-connect fitting.
[0010] In one embodiment, the water outlet branch pipe is a flexible hose, which is connected to the housing via a quick-connect fitting and to the water outlet pipe via a rubber plunger fitting.
[0011] In one embodiment, the diameter of the outlet branch pipe is smaller than the diameter of the outlet pipe.
[0012] In one embodiment, the outlet end of the valve body extends out of the housing, and a connecting channel is provided on the side wall of the portion of the outlet end of the valve body located inside the housing, which connects to the inner cavity of the housing. The height of the end of the connecting channel that connects to the water outlet pipe is lower than the height of the end of the connecting channel that connects to the inner cavity of the housing.
[0013] In one embodiment, a protrusion is provided on the inner wall of the outlet end of the valve body, and the connecting flow channel is provided through the protrusion and the inner wall of the valve body.
[0014] In one embodiment, the first end of the water outlet pipe is located inside the box body, and a connecting channel is provided on the side wall of the portion of the water outlet pipe located inside the box body, which connects to the inner cavity of the box body. The height of the end of the connecting channel that connects to the water outlet pipe is lower than the height of the end of the connecting channel that connects to the inner cavity of the box body.
[0015] In one embodiment, a protrusion is provided on the inner wall of the water outlet pipe, and the connecting channel is provided through the protrusion and the inner wall of the water outlet pipe.
[0016] Secondly, this utility model provides a squat toilet, including a squat toilet body and a flushing valve as described in any of the above claims, wherein the flushing valve is connected to the squat toilet body through the water outlet pipe.
[0017] The beneficial effects of this utility model are as follows: The aforementioned flushing valve connects the inner cavity of the box to the first end of the outlet pipe. When a leak occurs between the valve body inlet and the external water supply pipe, or when the valve body itself leaks, water flows into the inner cavity of the box and then to the first end of the outlet pipe, finally flowing into the squat toilet. Therefore, when the valve body is in a non-working state (the valve body is disconnected from the external water supply pipe), and water flows out of the outlet pipe, it indicates that there is a leak between the valve body and the external water supply pipe, or the valve body itself. At this time, the flushing valve can be checked in time to reduce the possibility of water leakage damaging the wall, thereby reducing losses. When the valve body is in a working state, if the external water supply pipe forms a negative pressure due to lack of water, a negative pressure will also form at the first end of the outlet pipe. Since the outlet pipe is connected to the box and thus to the outside atmosphere, the negative pressure at the first end of the outlet pipe can be balanced, reducing the possibility of contaminants being sucked from the squat toilet body through the outlet pipe into the external water supply pipe. No additional mechanical anti-siphon structure is needed to achieve a vacuum anti-siphon effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the flushing valve described in an embodiment of the present invention;
[0019] Figure 2 This is a partial cross-sectional view of the flushing valve described in an embodiment of this utility model;
[0020] Figure 3 yes Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 This is a cross-sectional view of the squat toilet described in an embodiment of this utility model.
[0022] In the picture:
[0023] 10. Flushing valve;
[0024] 1. Box body; 11. Opening; 2. Valve body; 21. Outlet end; 3. Water outlet pipe; 4. Water outlet branch pipe; a. First connecting port; b. Second connecting port; c. Connecting flow channel; 5. Protrusion;
[0025] 20. Squat toilet body. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0030] like Figures 1-4 As shown, an embodiment of this utility model provides a flushing valve 10 and a squat toilet. The squat toilet includes a squat toilet body 20 and a flushing valve 10. The flushing valve 10 includes a housing 1, a valve body 2, and a water outlet pipe 3. The valve body 2 is disposed in the inner cavity of the housing 1. An opening 11 is provided on one side of the housing 1. The inner cavity of the housing 1 is connected to the outside atmosphere through the opening 11. The inlet end of the valve body 2 can be connected to an external water supply pipeline (not limited to a domestic water pipeline). The first end of the water outlet pipe 3 is connected to the outlet end 21 of the valve body 2. The second end of the water outlet pipe 3 is connected to the squat toilet body 20. At the same time, the first end of the water outlet pipe 3 is also connected to the inner cavity of the housing 1. Water in the housing 1 can flow from the housing 1 to the water outlet pipe 3.
[0031] The aforementioned flush valve 10 connects the inner cavity of the housing 1 to the first end of the outlet pipe 3. When a leak occurs between the inlet of the valve body 2 and the external water supply pipe, or when the valve body 2 itself leaks, water flows into the inner cavity of the housing 1 and then to the first end of the outlet pipe 3, finally flowing to the squat toilet. Therefore, when the valve body 2 is in a non-working state (the valve body 2 is disconnected from the external water supply pipe), but water flows out of the outlet pipe 3, it indicates that there is a leak between the valve body 2 and the external water supply pipe, or the valve body 2 itself. At this time, the flush valve 10 can be checked in time to reduce the possibility of water leakage damaging the wall, thereby reducing losses. When valve body 2 is in working condition (valve body 2 is connected to the external water supply pipeline), if the external water supply pipeline forms a negative pressure due to lack of water, a negative pressure will be formed at the first end of the outlet pipe 3. Since the outlet pipe 3 is connected to the box body 1 and then to the outside atmosphere, the negative pressure at the first end of the outlet pipe 3 can be balanced, reducing the possibility of pollutants being sucked from the squat toilet body 20 into the external water supply pipeline through the outlet pipe 3. There is no need to set up other mechanical anti-siphon structures, which can play a vacuum anti-siphon role, and the anti-siphon effect is highly reliable.
[0032] In some embodiments, the flushing valve 10 further includes a water outlet branch pipe 4. One end of the water outlet branch pipe 4 connects to the inner cavity of the box body 1 through a first connecting port a located at the bottom of the box body 1, and the other end connects to the water outlet pipe 3 through a second connecting port b located on the first end side wall of the water outlet pipe 3. It should be noted that the height of the end of the water outlet branch pipe 4 connected to the water outlet pipe 3 is lower than the height of the end of the water outlet branch pipe 4 connected to the box body 1, so as to prevent water from flowing from the water outlet pipe 3 into the inner cavity of the box body 1.
[0033] Obviously, the water outlet branch pipe 4 is located outside the housing 1. To facilitate the assembly and replacement of the water outlet branch pipe 4, both ends of the water outlet branch pipe 4 can be connected to the water outlet pipe 3 and the housing 1 using quick-connect couplings. The specific form of the quick-connect coupling can be selected according to actual needs and is not specifically limited here. For example, the end of the water outlet branch pipe 4 connected to the housing 1 can use a quick-tight coupling, and the connection between the housing 1 and the water outlet branch pipe 4 can be sealed by tightening the nut. In this case, the water outlet branch pipe 4 is a flexible hose. The end of the water outlet branch pipe 4 connected to the water outlet pipe 3 can use a rubber plunger coupling.
[0034] Specifically, the diameter of the outlet branch pipe 4 is smaller than that of the outlet pipe 3 to save space and reduce operating costs.
[0035] refer to Figure 2As shown, in some embodiments, the outlet end 21 of the valve body 2 extends through the lower surface of the housing 1 and is fixedly connected to the water outlet pipe 3. Based on this, a connecting channel c is provided on the side wall of the portion of the valve body 2's outlet end 21 located in the housing 1, connecting to the inner cavity of the housing 1. Since the first end of the water outlet pipe 3 connects to the outlet of the valve body 2, it connects to the inner cavity of the housing 1 through the connecting channel c. The height of the end of the connecting channel c connecting to the water outlet pipe 3 is lower than the height of the end of the connecting channel c connecting to the inner cavity of the housing 1, to prevent water from flowing from the water outlet pipe 3 into the inner cavity of the housing 1. It is understood that the distance in the height direction between the connecting channel c and the bottom surface of the housing 1 should be as small as possible so that in the event of a leak, the water in the housing 1 can quickly flow to the water outlet pipe 3 through the connecting channel c.
[0036] refer to Figure 3 As shown, a protrusion 5 is provided on the inner wall of the outlet end 21 of the valve body 2, and the connecting channel c is provided through the protrusion 5 and the inner wall of the valve body 2. Specifically, one end of the connecting channel c that connects to the water outlet pipe 3 extends vertically, and one end of the connecting channel c that connects to the inner cavity of the box body 1 extends horizontally, so as to ensure that the height of the end port of the connecting channel c that connects to the water outlet pipe 3 is lower than the height of the end port of the connecting channel c that connects to the inner cavity of the box body 1.
[0037] In other embodiments, the first end of the water outlet pipe 3 is located inside the box 1 to connect with the outlet end 21 of the valve body 2 located inside the box 1. In this case, a connecting channel c is provided on the side wall of the part of the water outlet pipe 3 located inside the box 1. The connecting channel c connects to the inner cavity of the box 1, and the height of the end port of the connecting channel c that connects to the water outlet pipe 3 is lower than the height of the end port of the connecting channel c that connects to the inner cavity of the box 1, so as to reduce the possibility of water flowing from the water outlet pipe 3 to the box 1.
[0038] Specifically, a protrusion 5 is provided on the inner wall of the water outlet pipe 3, and a connecting channel c is provided through the protrusion 5 and the inner wall of the water outlet pipe 3. Specifically, one end of the connecting channel c that connects to the water outlet pipe 3 extends vertically, and the other end of the connecting channel c that connects to the inner cavity of the box body 1 extends horizontally.
[0039] In the current embodiment, in order to facilitate timely replacement of the water outlet pipe 3, the outlet end 21 of the valve body 2 extends out of the box body 1 and is connected to the box body 1 by a quick connector.
[0040] It is understandable that the outlet branch pipe 4 and the connecting channel c can be set at the same time. When the outlet branch pipe 4 or the connecting channel c is blocked by foreign objects, the flushing valve 10 also has the functions of leakage warning and balancing negative pressure.
[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A flush valve characterized by, include: The box body (1) has an opening (11) on it, and the inner cavity of the box body (1) is connected to the outside atmosphere through the opening (11); Valve body (2), the valve body (2) is disposed in the inner cavity of the box body (1); Water outlet pipe (3), the first end of the water outlet pipe (3) is connected to the outlet end (21) of the valve body (2), and the first end of the water outlet pipe (3) is also connected to the inner cavity of the box body (1), so that the water in the box body (1) can flow from the box body (1) to the water outlet pipe (3).
2. The flush valve of claim 1, wherein The flushing valve also includes a water outlet branch pipe (4), one end of which is connected to the bottom of the box body (1) and communicates with the inner cavity of the box body (1), and the other end of which is connected to the water outlet pipe (3). The height of the end of the water outlet branch pipe (4) connected to the water outlet pipe (3) is lower than the height of the end of the water outlet branch pipe (4) connected to the box body (1).
3. The flush valve of claim 2, wherein The water outlet branch pipe (4) is connected to the box body (1) via a quick-connect fitting; and / or, the water outlet branch pipe (4) is connected to the water outlet pipe (3) via a quick-connect fitting.
4. The flush valve of claim 3, wherein The water outlet branch pipe (4) is made of a flexible hose. The water outlet branch pipe (4) is connected to the box body (1) through a quick-connect fitting. The water outlet branch pipe (4) is connected to the water outlet pipe (3) through a rubber plunger fitting.
5. The flush valve of claim 2 wherein, The diameter of the outlet branch pipe (4) is smaller than the diameter of the outlet pipe (3).
6. A flush valve according to any one of claims 1-5, characterized in that The outlet end (21) of the valve body (2) extends out of the box body (1). The side wall of the part of the outlet end (21) of the valve body (2) located inside the box body (1) is provided with a connecting flow channel (c) that connects to the inner cavity of the box body (1). The height of the end port of the connecting flow channel (c) that connects to the water outlet pipe (3) is lower than the height of the end port of the connecting flow channel (c) that connects to the inner cavity of the box body (1).
7. The flush valve of claim 6, wherein A protrusion (5) is provided on the inner wall of the outlet end (21) of the valve body (2), and the connecting flow channel (c) is provided through the protrusion (5) and the inner wall of the valve body (2).
8. The flush valve according to any one of claims 1-5, wherein The first end of the water outlet pipe (3) is located inside the box body (1). The side wall of the part of the water outlet pipe (3) located inside the box body (1) is provided with a connecting channel (c) that connects to the inner cavity of the box body (1). The height of the end port of the connecting channel (c) that connects to the water outlet pipe (3) is lower than the height of the end port of the connecting channel (c) that connects to the inner cavity of the box body (1).
9. The flush valve of claim 8, wherein, The inner wall of the water outlet pipe (3) is provided with a protrusion (5), and the connecting channel (c) is provided through the protrusion (5) and the inner wall of the water outlet pipe (3).
10. A squat toilet, characterized by It includes a squat toilet body (20) and a flush valve (10) as described in any one of claims 1-9, wherein the flush valve (10) is connected to the squat toilet body (20) through the water outlet pipe (3).