A water inlet valve

Abstract

The utility model discloses a water inlet valve, including the valve body, the water inlet cavity and the water cavity are formed in the valve body, the water inlet cavity is connected to the water source, is provided with the water stop pad on the water inlet cavity, and the water stop pad is used for opening or closing the water inlet cavity, can be communicated with the water outlet cavity after opening the water inlet cavity, the valve body is provided with the upper water channel and the sewer channel with longitudinal extension side by side, and the upper water channel bottom side is communicated with the water outlet cavity side wall, and the upper water channel top side is communicated with the sewer channel top side, and the sewer channel bottom side is communicated to the closestool water tank, so that the sewer channel can pour the water to the closestool water tank. The water inlet and water outlet integration is in the valve body, and the structure is compact and simple, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of water inlet valves, and in particular to a water inlet valve. Background Technology

[0002] The toilet inlet valve is a key automatic control device inside the toilet tank. Its core function is to automatically control the water inlet and outlet of the tank, and to automatically replenish water when the tank is empty or the water level is too low, so as to ensure that the tank can be restored to the preset and appropriate water level after each flush. Traditional inlet valves have a split structure, including an inner core and an outer sleeve, which are rotatably connected by threads or a rotating disc. The structure is complex and the manufacturing cost is high. Summary of the Invention

[0003] The purpose of this utility model is to provide a water inlet valve, and the technical problem to be solved is to provide a compact, integrated water inlet valve.

[0004] To achieve the above objectives, the solution of this utility model is as follows: it includes a valve body, in which an inlet chamber and an outlet chamber are formed. The inlet chamber is connected to a water source. A water-stop pad is provided on the inlet chamber. The water-stop pad is used to open or close the inlet chamber. After the inlet chamber is opened, the inlet chamber can communicate with the outlet chamber. The valve body has a longitudinally extending water inlet channel and a water outlet channel arranged side by side. The bottom side of the water inlet channel is connected to the side wall of the water outlet chamber, the top side of the water inlet channel is connected to the top side of the water outlet channel, and the bottom side of the water outlet channel is connected to the toilet tank, so that the water outlet channel can fill the toilet tank with water.

[0005] Furthermore, an anti-siphon device is installed on the top side of the water supply channel. The anti-siphon device forms an air inlet that communicates with the atmosphere. The anti-siphon device is used to block the air inlet when water flows from the water supply channel to the water drainage channel, and to open the air inlet when the water flow stops.

[0006] Furthermore, a water passage cavity is formed on the top side of the valve body, with the top sides of the upper water passage and the lower water passage exposed inside the water passage cavity. An air inlet is formed on the top wall of the water passage cavity and located directly above the upper water passage. The anti-siphon device also includes an anti-siphon pad, which is movably installed inside the water passage cavity and can slide up and down to open or close the air inlet.

[0007] Furthermore, the inlet chamber extends laterally, the outlet chamber surrounds the outer periphery of the inlet chamber, and the bottom side of the water inlet channel is connected to the top wall of the outlet chamber.

[0008] Furthermore, the side wall of the drain channel is horizontally connected to form a drain outlet, the bottom of which is connected to the water outlet pipe. The water outlet pipe extends vertically, and after the water flows horizontally out of the drain channel, it is injected downward into the toilet tank through the water outlet pipe.

[0009] Furthermore, the valve body forms a connector on the bottom side of the drain channel. The connector has a cylindrical structure, and the drain outlet is exposed inside the connector. The water outlet pipe is sleeved on the connector, so that the drain outlet and the water outlet pipe are connected.

[0010] Furthermore, the drain outlet has a trapezoidal structure that is wider at the top and narrower at the bottom.

[0011] Furthermore, it also includes a pontoon assembly and a swing arm. One end of the swing arm is hinged to a water-stop pad, and the other end is movably connected to the pontoon assembly. The pontoon assembly can move up and down to drive the swing arm to control the opening or closing of the water-stop pad.

[0012] Furthermore, the float assembly is equipped with an adjusting rod, and the swing arm is hooked to the top of the adjusting rod. The adjusting rod extends longitudinally and can be displaced relative to the float assembly in the longitudinal direction to adjust the height of the float assembly.

[0013] Furthermore, the valve body is connected to a water inlet pipe, which can be either a bottom inlet or a side inlet.

[0014] The beneficial effects of this utility model after adopting the above solution are as follows: an inlet chamber and an outlet chamber are formed in the valve body. The inlet chamber is controlled to open or close by a water-stop pad. In addition, the valve body is provided with a longitudinally extending water inlet channel and a water outlet channel. The bottom side of the water inlet channel is connected to the side wall of the outlet chamber, the top side of the water inlet channel is connected to the top side of the water outlet channel, and the bottom side of the water outlet channel is connected to the toilet tank. The water inlet and outlet are integrated into the valve body, which has a compact and simple structure and reduces costs. Attached Figure Description

[0015] Figure 1 This is a top view of the present invention.

[0016] Figure 2 yes Figure 1 AA cross-sectional three-dimensional structure diagram.

[0017] Figure 3 yes Figure 1 Schematic diagram of BB cross-section three-dimensional structure.

[0018] Figure 4 This is a partial cross-sectional structural diagram of the valve body of this utility model.

[0019] Figure 5 This is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 6 yes Figure 5 A schematic diagram of its decomposed structure.

[0021] Figure 7 This is a schematic diagram of another embodiment of the present invention.

[0022] Figure 8This is a schematic diagram of the bottom water inlet structure of this utility model.

[0023] Figure 9 This is a schematic diagram of the adjusting rod and the water inlet valve snap-fit ​​structure of this utility model.

[0024] Label Explanation: 1-Valve body, 2-Inlet chamber, 3-Outlet chamber, 4-Water stop pad, 5-Water inlet channel, 6-Water outlet channel, 7-Drain outlet, 8-Outlet pipe, 9-Connector, 10-Water passage chamber, 11-Anti-siphon pad, 12-Float assembly, 13-Swing arm, 14-Adjusting rod, 15-Inlet pipe, 16-Mounting chamber, 21-Inlet inlet of inlet chamber, 22-Outlet outlet of inlet chamber, 31-Inlet inlet of outlet chamber, 41-Pressure cap, 42-Swing rod, 43-Water stop pad, 44-Gasket, 45-O-ring seal, 46-Needle valve, 51-Outlet outlet of inlet channel, 61-Inlet of outlet channel, 101-Air inlet, 121-Mounting groove, 122-Snap protrusion, 131-Hook, 141-Pull ring, 142-Snap-fit ​​hole. Detailed Implementation

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "middle", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] like Figures 1-9 As shown, this utility model provides a water inlet valve, including a valve body 1. The valve body 1 has an inlet chamber 2 and an outlet chamber 3. The inlet chamber 2 is connected to a water source. A water-stopping pad 4 is provided on the inlet chamber 2. The water-stopping pad 4 is used to open or close the inlet chamber 2. The water-stopping pad 4 is any existing sealing device used in toilet inlet valves that can reliably and dynamically seal the outlet 22 of the inlet chamber. After the inlet chamber 2 is opened, the inlet chamber 2 can communicate with the outlet chamber 3. There are multiple ways to set up the water chamber 3. It can be set up end to end or side by side. There are no specific restrictions. The valve body 1 has a longitudinally extending water inlet channel 5 and a water outlet channel 6 arranged side by side. The bottom side of the water inlet channel 5 is connected to the side wall of the water outlet chamber 3, and the top side of the water inlet channel 5 is connected to the top side of the water outlet channel 6. The bottom side of the water outlet channel 6 is connected to the toilet tank, so that the water outlet channel 6 can fill the toilet tank with water. The water inlet and outlet are integrated into the valve body 1, and the structure is compact and simple.

[0028] In this specific embodiment, the water inlet chamber 2 extends laterally, with one end forming a water inlet 21 and the other end forming a water outlet 22. The water inlet 21 is connected to a water source, and the water outlet 22 is equipped with the water-stopping pad 4. The water outlet chamber 3 surrounds the outer periphery of the water inlet chamber 2, focusing on... Figure 2-4 As shown, the inlet chamber 2 has a circular cross-section, which matches the shape of the water pipe and facilitates water intake. The outlet chamber 3 has a square cross-section, which can adapt to the outer contour shape of the valve body 1 to increase the flow rate. The outlet chamber 3 and the inlet chamber 2 form a coaxial nested structure, that is, the inner layer is the inlet chamber 2 and the outer layer is the outlet chamber 3, which integrates the inlet and outlet highly and has a compact structure. Moreover, the coaxial nesting setting allows the outlet chamber inlet 31 and the inlet chamber outlet 22 to be located on the same side. After the water stop pad 4 opens the inlet chamber 2, the outlet chamber inlet 31 and the inlet chamber outlet 22 are connected, allowing the water in the inlet chamber 2 to quickly enter the outlet chamber 3, resulting in a fast response speed.

[0029] Preferably, the bottom side of the water inlet channel 5 is connected to the top wall of the water outlet cavity 3, which can save space and make the structure more compact.

[0030] To prevent backflow of water, an anti-siphon device is installed on the top side of the upper water channel 5. The anti-siphon device has an air inlet 101 that communicates with the atmosphere. The anti-siphon device is used to block the air inlet 101 when water flows from the upper water channel 5 to the lower water channel 6 to form a water seal. The anti-siphon device is also used to open the air inlet 101 when water flow stops to prevent water from flowing back from the lower water channel 6 into the upper water channel 5. As shown in Figure 4, a water passage cavity 10 is formed on the top side of the valve body 1. A water outlet 51 is formed on the top side of the water inlet channel 5, and a water inlet 61 is formed on the top side of the water outlet channel 6. Both the water outlet 51 and the water inlet 61 are exposed within the water passage cavity 10. An air inlet 101 is formed on the top wall of the water passage cavity 10 and is provided through it. The air inlet 101 is located directly above the water inlet channel 5. The anti-siphon device also includes an anti-siphon pad 11, which is movably disposed within the water passage cavity 10 and can slide up and down to open. The air inlet 101 is opened or closed. Specifically, the anti-siphon pad 11 extends downward from its top side to form a sliding rod. A sliding groove runs through the top wall of the water passage cavity 10, and the sliding rod slides within the sliding groove. When the water stop pad 4 is opened, the water in the water inlet cavity 2 flows into the water outlet cavity 3 and into the water inlet channel 5. The water inlet channel 5 flows upward, and the water pressure pushes the anti-siphon pad 11, making the air pressure in the water passage cavity 10 higher than atmospheric pressure. This causes the anti-siphon pad 11 to block the air inlet 101, allowing water to flow in rapidly. The drain channel 6 fills the toilet tank with water, enabling rapid filling. As the water level in the toilet tank gradually rises to the predetermined position, the float assembly 12 also rises with the water level and drives the swing arm 13 to control the water stop pad 4 to close, blocking the water outlet 22 of the inlet chamber. The anti-siphon pad 11 slides down by gravity, opening the air inlet 101, allowing the water passage chamber 10 to be connected to the atmosphere. This can create negative pressure when the water pressure is too low, preventing water in the toilet tank from flowing back into the inlet pipe 15.

[0031] Key points combined Figure 7-8 As shown, the valve body 1 is connected to a water inlet pipe 15. The water inlet pipe 15 can be a bottom inlet or a side inlet. Specifically, the water inlet pipe 15 extends laterally and is sealed to the water inlet 21 of the water inlet chamber, thus enabling the valve body 1 to achieve side water inlet. Alternatively, the water inlet pipe 15 can be an L-shaped structure, with its bottom side connected to the water source and its top side sealed to the water inlet 21 of the water inlet chamber, enabling the valve body 1 to achieve bottom water inlet (e.g., ...). Figure 8 As shown), side or bottom water inlet is achieved, with a focus on combining... Figure 5 and Figure 7 As shown, the valve body 1 can be integrally formed with a fixed side inlet on one side of the water inlet 21 of the water inlet chamber. The direction of the arrow in the figure indicates the direction of water flow. In other embodiments, it can also be integrally formed with an L-shaped fixed bottom inlet, without specific limitations.

[0032] To reduce the noise of the inlet valve filling the toilet tank, the side wall of the drain channel 6 is horizontally connected to form a drain outlet 7, which is connected to the outlet pipe 8. The outlet pipe 8 extends vertically, so that after the water flows horizontally out of the drain channel 6, it is injected downward into the toilet tank through the outlet pipe 8, avoiding the drain channel 6 from directly filling the water downward and reducing the noise of water filling.

[0033] As shown in Figure 4, the valve body 1 forms a connector 9 on the bottom side of the drain channel 6. The connector 9 has a cylindrical structure, and the drain outlet 7 is exposed inside the connector 9. The water outlet pipe 8 is sleeved on the connector 9, so that the drain outlet 7 and the water outlet pipe 8 are connected. The water outlet pipe 8 and the connector 9 are sealed together, which can be fixed by snap-fit, without specific limitations.

[0034] Preferably, the drain outlet 7 has a trapezoidal structure that is larger at the top and smaller at the bottom.

[0035] Key points combined Figure 5-6As shown, the valve body 1 has an installation cavity 16 formed on the side of the water outlet 22 of the inlet chamber. The water-stop gasket 4 is sealed and installed in the installation cavity 16. The water-stop gasket 4 consists of a pressure cap 41, a rocker rod 42, a water-stop rubber gasket 43, a gasket 44, and an O-ring seal 45. The pressure cap 41 extends towards the installation cavity 16 to form a needle valve 46. A pressure relief hole is formed on the pressure cap 41. A through hole for the needle valve 46 to pass through is formed on the water-stop rubber gasket 43. The gasket 44 has an annular structure. The O-ring seal 45, the gasket 44, and the water-stop rubber gasket 43 are installed in the installation cavity 16 in sequence. The needle valve 46 passes through the through hole of the water-stop rubber gasket 43 and the gasket in sequence. After 44, the pressure cap 41 seals and covers the mounting cavity 16, and is snapped and fixed to the mounting cavity 16. The outer edge of the gasket 44 protrudes from the water-stopping rubber gasket 43, is made of rubber material, and fits against the pressure cap 41 to seal the connection between the pressure cap 41 and the mounting cavity 16. A back pressure cavity is formed between the pressure cap 41 and the water-stopping rubber gasket 43. The swing rod 42 is hinged to the side of the pressure cap 41 away from the mounting cavity 16. By swinging the swing rod 42, the needle valve 46 opens and closes the pressure relief hole, so that back pressure is formed or discharged in the back pressure cavity, thereby realizing the opening or closing of the water-stopping valve 4. After the water inlet cavity 2 is opened, the water in the water inlet cavity 2 flows into the water outlet cavity 3 through the mounting cavity 16.

[0036] Key points combined Figure 5 As shown, it also includes a float assembly 12 and a swing arm 13. The swing arm 13 is connected to the water-stop pad 4 and is used to control the opening or closing of the water-stop pad 4. Specifically, one end of the swing arm 13 is hinged to the swing rod 42, and the other end is movably connected to the float assembly 12. The float assembly 12 can rise and fall in the toilet tank with the water level, so as to drive the swing rod 42 to swing through the swing arm 13 to control the opening and closing of the water-stop pad 4. When the float assembly 12 rises, it drives the swing arm 13 to control the water-stop pad 4 to open; when the float assembly 12 falls, it drives the swing arm 13 to control the water-stop pad 4 to close.

[0037] Key points combined Figure 7 As shown, the float assembly 12 is equipped with an adjusting rod 14, which extends longitudinally. A swing arm 13 is hooked to the top of the adjusting rod 14, and a hook 131 is formed at the bottom of the swing arm 13. A pull ring 141 is formed at the top of the adjusting rod 14. The hook 131 and the pull ring 141 are hooked together to connect the swing arm 13 and the adjusting rod 14. The adjusting rod 14 and the float assembly 12 can move longitudinally relative to each other to adjust the height of the float assembly 12. (Further details omitted as the text is incomplete.) Figure 9 As shown, the adjusting rod 14 has several locking holes 142 arranged longitudinally. The outer wall of the float assembly 12 is recessed to form an installation groove 121 for installing the adjusting rod 14. The installation groove 121 extends longitudinally and penetrates the top and bottom walls of the float assembly 12. The installation groove 121 has protrusions that engage with the locking holes 142. During the up and down movement of the adjusting rod 14, the protrusions 122 can slide into different locking holes 142, so that the height of the float assembly 12 is different, thereby adjusting the water level in the toilet tank.

[0038] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A water inlet valve, characterized in that: The valve body (1) includes an inlet chamber (2) and an outlet chamber (3) formed inside the valve body (1). The inlet chamber (2) is connected to a water source. A water stop pad (4) is provided on the inlet chamber (2). The water stop pad (4) is used to open or close the inlet chamber (2). After the inlet chamber (2) is opened, the inlet chamber (2) can communicate with the outlet chamber (3). The valve body (1) is provided with a longitudinally extending water inlet channel (5) and a water outlet channel (6) side by side. The bottom side of the water inlet channel (5) is connected to the side wall of the water outlet chamber (3), the top side of the water inlet channel (5) is connected to the top side of the water outlet channel (6), and the bottom side of the water outlet channel (6) is connected to the toilet tank, so that the water outlet channel (6) can inject water into the toilet tank.

2. The inlet valve as described in claim 1, characterized in that: An anti-siphon device is installed on the top side of the water supply channel (5). The anti-siphon device forms an air inlet (101) that communicates with the atmosphere. The anti-siphon device is used to block the air inlet (101) when water flows from the water supply channel (5) to the water supply channel (6), and to open the air inlet (101) when water flow stops.

3. The inlet valve as described in claim 2, characterized in that: The valve body (1) forms a water passage cavity (10) on the top side. The top sides of the upper water channel (5) and the lower water channel (6) are exposed in the water passage cavity (10). The air inlet (101) is formed on the top wall of the water passage cavity (10) and is located directly above the upper water channel (5). The anti-siphon device also includes an anti-siphon pad (11). The anti-siphon pad (11) is movably disposed in the water passage cavity (10) and can slide up and down to open or close the air inlet (101).

4. The inlet valve as described in claim 1, characterized in that: The inlet chamber (2) extends laterally, and the outlet chamber (3) surrounds the outer periphery of the inlet chamber (2). The bottom side of the water supply channel (5) is connected to the top wall of the outlet chamber (3).

5. The inlet valve as described in claim 1, characterized in that: The drain channel (6) has a horizontally through-wall forming a drain outlet (7). The bottom of the drain outlet (7) is connected to the water outlet pipe (8). The water outlet pipe (8) extends longitudinally. After the water flows horizontally through the drain channel (6), it is injected downward into the toilet tank through the water outlet pipe (8).

6. The inlet valve as described in claim 5, characterized in that: The valve body (1) forms a connector (9) on the bottom side of the drain channel (6). The connector (9) has a cylindrical structure. The drain outlet (7) is exposed inside the connector (9). The water outlet pipe (8) is sleeved on the connector (9) so that the drain outlet (7) and the water outlet pipe (8) are connected.

7. The inlet valve as described in claim 5, characterized in that: The drain outlet (7) has a trapezoidal structure that is larger at the top and smaller at the bottom.

8. The inlet valve as described in claim 1, characterized in that: It also includes a float assembly (12) and a swing arm (13). One end of the swing arm (13) is hinged to the water-stop pad (4), and the other end is movably connected to the float assembly (12). The float assembly (12) can move up and down to drive the swing arm (13) to control the opening or closing of the water-stop pad (4).

9. The inlet valve as described in claim 8, characterized in that: The float assembly (12) is provided with an adjusting rod (14), and the swing arm (13) is hooked to the top of the adjusting rod (14). The adjusting rod (14) extends longitudinally and can be relatively displaced longitudinally with the float assembly (12) to adjust the height of the float assembly (12).

10. The inlet valve as described in claim 1, characterized in that: The valve body (1) is connected to a water inlet pipe (15), which is either a bottom inlet or a side inlet.

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