Water inlet valve for preventing water leakage

Abstract

The application provides a water inlet valve capable of preventing water leakage, comprising a valve body, a first water stop assembly, a second water stop assembly, a first float and a second float. The valve body is provided with a water inlet channel and a water outlet channel. The first water stop assembly and the second water stop assembly are both installed on the valve body. The first float is connected to control the first water stop assembly to open / close the water inlet channel. The second float is connected to control the second water stop assembly to open / close the water inlet channel, and the second float is located above the first float. By arranging the second float and the second water stop assembly, in the case that the first water stop assembly fails, the second water stop assembly as a backup can be started and the water path is closed, thereby avoiding the problem of continuous water inlet of the toilet tank and water waste.

Description

TECHNICAL FIELD

[0001] The present application relates to a water inlet valve capable of preventing water leakage. BACKGROUND

[0002] The water inlet valve of a toilet has the function of automatic water stop. When the water stop pad of the water inlet valve fails, the water inlet valve will keep filling water. When the water in the water tank is excessive, it will flow into the toilet from the overflow pipe, causing the toilet to easily produce water flow sound and water inlet sound, which will bring trouble to the life of consumers, and also cause the toilet to have an obvious water scale mark, which is difficult to clean, and also cause the problem of water waste. SUMMARY

[0003] The present application is to solve the above technical problems, and proposes a structure capable of effectively preventing water leakage of the water inlet valve.

[0004] A water inlet valve capable of preventing water leakage, comprising a valve body, a first water stop assembly, a second water stop assembly, a first float and a second float, wherein,

[0005] The valve body is provided with a water inlet channel and a water outlet channel.

[0006] The first water stop assembly and the second water stop assembly are both installed on the valve body. The first float is connected to control the first water stop member to open / close the water inlet channel.

[0007] The second float is connected to control the second water stop member to open / close the water inlet channel, and the second float is located above the first float.

[0008] When the first water stop assembly fails or leaks, the first water stop assembly cannot close the water inlet, and in the continuous water inlet state, the water level rises to the position of the second float, causing the second float to float up, thereby driving the second water stop member to close the water inlet channel, achieving water stop.

[0009] The present application sets the second float and the second water stop assembly. In the case of failure of the first water stop assembly, the second water stop assembly as a backup can start and block the waterway, thereby avoiding the problem of continuous water inlet of the toilet water tank and avoiding water waste.

[0010] Preferably, the valve body is provided with a first mounting port and a second mounting port for mounting the first water stop assembly and the second water stop assembly, respectively. The first mounting port and the second mounting port are the same mounting port or different mounting ports, which can be designed according to actual needs and installation space.

[0011] Preferably, the first mounting port has an inlet and an outlet. The second mounting port has an inlet hole and an outlet hole. The inlet of the first mounting port connects to the water inlet channel of the valve body, the inlet hole of the second mounting port connects to the outlet of the first mounting port, and the outlet hole connects to the water outlet channel of the valve body. The first water-stop component opens / blocks the inlet. The second water-stop component opens / blocks the outlet hole.

[0012] Preferably, the inlet and outlet of the first mounting port are coaxially arranged, with the outlet surrounding the inlet. The first water-stopping assembly includes a sealing plate, an end cap, and a swing member. The sealing plate is installed at the inlet and outlet. The sealing plate is movably installed or uses an elastic element and has a water passage hole to connect / isolate the inlet and outlet. The end cap covers the first mounting port and forms a pressure relief chamber, and the end cap has a pressure relief hole. The swing member is movably installed on the end cap or valve body. The first float connects to drive the swing member to swing, thereby opening / sealing the pressure relief hole. In use, when the water level rises, the first float rises and drives the swing member to seal the pressure relief hole. Water from the inlet channel enters the pressure relief chamber through the water passage hole of the sealing plate, and the sealing plate, under water pressure, presses against the inlet and outlet. When the water level drops, the first float descends and causes the pendulum to open the pressure relief hole. The water in the pressure relief chamber is discharged through the pressure relief hole, relieving the pressure on the sealing plate. The sealing plate is then flushed open by the water in the inlet, thereby connecting the inlet and outlet.

[0013] Preferably, the sealing piece is an elastic element and is installed at the bottom of the groove of the first mounting port. The end cap presses against the periphery of the sealing piece and is provided with a guide rod passing through the water passage hole.

[0014] Preferably, the second water-stopping assembly includes a plug, a connector, and a lifting rod. The plug is movably installed near the water outlet. The bottom end of the lifting rod is mounted on the second float, and the top end extends into the water outlet channel of the valve body and connects to one end of the connector. The other end of the connector passes through the water outlet and connects to the plug to seal / open the water outlet. In use, when the first water-stopping assembly fails, causing the water level to rise continuously, the second float floats up and moves the lifting rod upward, thereby pulling the plug up through the connector to block the water outlet and achieve a water-stopping effect. When the water level drops, the second float and the lifting rod fall, causing the plug to move downward through the connector, or the plug falls under gravity, reopening the water outlet.

[0015] Preferably, the water outlet faces upward and is coaxially arranged with the water outlet channel of the valve body, and the water outlet channel of the valve body surrounds the water outlet. The lower part of the water outlet channel of the valve body has a contraction, and a through hole is provided at the contraction position. The lifting rod enters the water outlet channel through the through hole and extends upward to the position of the water outlet.

[0016] Preferably, to improve the stability of the second water-stopping component, at least two lifting rods are evenly distributed around the periphery of the water outlet and connected at the top. The connecting member is a connecting rod, or the connecting rod is a pull rope, and the plug is a metal block.

[0017] Preferably, a check valve or filter is provided between the water inlet and the water outlet of the second installation port to prevent backflow of water.

[0018] Preferably, the second buoy is provided with a guide hole. The second buoy is located directly above the first buoy. The screw of the first buoy passes through the guide hole and connects to the first water-stopping assembly, resulting in a compact structure.

[0019] As can be seen from the above description of the present invention, the present invention has the following beneficial effects:

[0020] By setting up a second float and a second water-stopping component, the second water-stopping component, which serves as a backup, can be activated and block the water passage in the event of failure of the first water-stopping component, thereby preventing the toilet tank from continuously filling with water and also preventing water waste.

[0021] By passing the screw of the first float through the second float, not only can the movement direction of the second float be guided and restricted, but the overall structure of the inlet valve can also be made more compact. Attached Figure Description

[0022] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0023] in:

[0024] Figure 1 Axial view of a water inlet valve designed to prevent leakage. Figure 1

[0025] Figure 2 Axial view of a water inlet valve designed to prevent leakage. Figure 2 ;

[0026] Figure 3 This is a front view of a water inlet valve designed to prevent leakage.

[0027] Figure 4 A cross-section of a water inlet valve designed to prevent leaks.Figure 1 ;

[0028] Figure 2 A cross-section of a water inlet valve designed to prevent leaks. Figure 6 ;

[0029] Figure 3 A cross-section of a water inlet valve designed to prevent leaks. Figure 7 ;

[0030] Figure 8 This is a cross-sectional view of a leak-proof inlet valve in its normal water flow state.

[0031] Figure 9 This is another cross-sectional view of a water inlet valve in its normal water flow state, designed to prevent leakage.

[0032] Figures 1 to 9 This is a cross-sectional view of the second stop valve assembly of a water inlet valve in its water-stopping state to prevent leakage.

[0033] Figures 1 to 6 The markings are as follows: Valve body 1, Inlet channel 11, Outlet channel 12, First mounting port 13, Inlet 131, Outlet 132, Second mounting port 14, Inlet hole 141, Outlet hole 142, Check valve 15, First water-stopping assembly 2, Sealing plate 21, End cap 22, Orbital piece 23, Second water-stopping assembly 3, Plug 31, Connector 32, Lifting rod 33, First float 4, Second float 5. Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects of this invention clearer and more understandable, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0035] Please see Figure 7 A water inlet valve for preventing leakage includes a valve body 1, a first water-stopping assembly 2, a second water-stopping assembly 3, a first float 4, and a second float 5, wherein...

[0036] The valve body 1 is provided with an inlet channel 11 and an outlet channel 12.

[0037] Both the first water-stop component 2 and the second water-stop component 3 are mounted on the valve body 1. The first float 4 controls the opening / closing of the water inlet channel 11. The second float 5 controls the opening / closing of the water inlet channel 11, and the second float 5 is located above the first float 4. In one embodiment, the second float 5 has a guide hole. The second float 5 is located directly above the first float 4. The screw of the first float 4 passes through the guide hole and connects to the first water-stop component 2, resulting in a compact structure. When the first water-stop component 2 fails or leaks, it cannot close the water inlet. Under continuous water inlet conditions, the water level rises to the position of the second float 5, causing the second float 5 to float upwards, thereby driving the second water-stop component to block the water inlet channel 11, thus stopping the water flow.

[0038] In one embodiment, the valve body 1 is provided with a first mounting port 13 and a second mounting port 14, which are respectively used to install the first water-stopping component 2 and the second water-stopping component 3.

[0039] The first mounting port 13 is provided with an inlet 131 and an outlet 132. The second mounting port 14 is provided with an inlet hole 141 and an outlet hole 142. The inlet 131 of the first mounting port 13 is connected to the water inlet channel 11 of the valve body 1, the inlet hole 141 of the second mounting port 14 is connected to the outlet 132 of the first mounting port 13, and the outlet hole 142 is connected to the water outlet channel 12 of the valve body 1. The first water-stopping component 2 opens / blocks the inlet 131. The second water-stopping component opens / blocks the outlet hole 142.

[0040] In this embodiment, the first mounting port 13 and the second mounting port 14 are different mounting ports. In other embodiments, the first mounting port 13 and the second mounting port 14 can be set as the same mounting port, depending on the actual needs and installation space.

[0041] The inlet 131 and outlet 132 of the first mounting port 13 are coaxially arranged, with the outlet 132 surrounding the inlet 131. The first water-stopping assembly 2 includes a sealing plate 21, an end cap 22, and a swing member 23. The sealing plate 21 is installed at the positions of the inlet 131 and the outlet 132. The sealing plate 21 is movably installed or uses an elastic element and has a water passage hole to connect / isolate the inlet 131 and the outlet 132. The end cap 22 covers the first mounting port 13 and forms a pressure relief chamber, and the end cap 22 has a pressure relief hole 221. The swing member 23 is movably installed on the end cap 22 or the valve body 1. The first float 4 drives the swing member 23 to swing, thereby opening / sealing the pressure relief hole 221. In this embodiment, the sealing plate 21 uses an elastic element and is installed at the bottom of the groove of the first mounting port 13. The end cap 22 presses against the periphery of the sealing piece 21 and is provided with a guide rod that passes through the water passage.

[0042] In use, when the water level rises, the first float 4 rises and drives the swing member 23 to block the pressure relief hole 221. Water from the inlet channel 11 enters the pressure relief chamber through the water passage of the sealing plate 21. Under water pressure, the sealing plate 21 presses against the inlet 131 and the outlet 132. When the water level drops, the first float 4 descends and drives the swing member 23 to open the pressure relief hole 221. Water in the pressure relief chamber is discharged through the pressure relief hole 221, relieving the pressure on the sealing plate 21. The sealing plate 21 is then opened by the water from the inlet 131, thus connecting the inlet 131 and the outlet 132.

[0043] The second water-stopping assembly 3 includes a plug 31, a connector 32, and a lifting rod 33. The plug 31 is movably installed near the water outlet 142. The bottom end of the lifting rod 33 is mounted on the second float 5, and the top end extends into the water outlet channel 12 of the valve body 1 and connects to one end of the connector 32. The other end of the connector 32 passes through the water outlet 142 and connects to the plug 31 to seal / open the water outlet 142. In this embodiment, the water outlet 142 faces upward and is coaxially arranged with the water outlet channel 12 of the valve body 1, and the water outlet channel 12 of the valve body 1 surrounds the water outlet 142. The lower part of the water outlet channel 12 of the valve body 1 has a contraction, and a perforation is provided at the contraction position. The lifting rod 33 enters the water outlet channel 12 through the perforation and extends upward to the position of the water outlet 142. In addition, to improve the stability of the second water-stopping component 3, at least two lifting rods 33 are evenly distributed around the periphery of the water outlet 142 and connected at the top. The connecting member 32 is a connecting rod, or, in other embodiments, the connecting rod is a pull rope, and the plug 31 is a metal block capable of descending under its own weight. In this embodiment, the top surface of the plug 31 is conical; in other embodiments, a spherical, flat, or semi-circular surface may also be used.

[0044] In use, when the first water-stopping component 2 fails, causing the water level to rise continuously, the second float 5 floats up and moves the lifting rod 33 upward, thereby pulling the plug 31 up through the connector 32 to block the water outlet 142, achieving a water-stopping effect. When the water level drops, the second float 5 and the lifting rod 33 fall, causing the plug 31 to move down through the connector 32, or the plug 31 falls under gravity, reopening the water outlet 142.

[0045] To prevent water backflow, in one embodiment, a check valve 15 is provided between the water inlet 141 and the water outlet 142 of the second mounting port 14. In other embodiments, it can also be a filter.

[0046] During normal water intake, please refer to the instructions for the water valve provided by this invention. Figure 8 and Figure 9 Both the sealing plate 21 and the plug 31 are in the open state, and the water flow path is shown in the figure. When the water in the tank reaches the preset height, and in the event of failure of the first water-stopping component 2, the backup second water-stopping component 3 can be activated and block the water path, thereby preventing the toilet tank from continuously filling with water and also preventing water waste. ​ .

[0047] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A water inlet valve to prevent leakage, characterized in that, It includes a valve body, a first water-stop assembly, a second water-stop assembly, a first float, and a second float; The valve body is provided with an inlet channel and an outlet channel, and the outer periphery of the inlet channel is provided with threads; Both the first and second water-stop components are mounted on the valve body: The valve body is provided with a first mounting port and a second mounting port, which are respectively used to install the first water-stopping component and the second water-stopping component. The first mounting port and the second mounting port are different mounting ports. The first mounting port is provided with an inlet and an outlet; the second mounting port is provided with an inlet hole and an outlet hole; the inlet of the first mounting port is connected to the water inlet channel of the valve body, the inlet hole of the second mounting port is connected to the outlet of the first mounting port, and the outlet hole is connected to the outlet channel of the valve body; The first float connects to control the first water-stopping component to open / block the water inlet channel; The second float connects to control the second water-stopping assembly to open / block the water inlet channel, and the second float is located above the first float.

2. The water inlet valve for preventing water leakage according to claim 1, characterized in that, The first water-stopping component opens / blocks the water inlet; the second water-stopping component opens / blocks the water outlet.

3. A water inlet valve for preventing water leakage according to claim 2, characterized in that, The inlet and outlet of the first mounting port are coaxially arranged, with the outlet surrounding the inlet; the first water-stopping assembly includes a sealing plate, an end cap, and a swing member; the sealing plate is installed at the positions of the inlet and outlet; the sealing plate is movably installed or uses an elastic element, and is provided with a water passage hole to connect / isolate the inlet and outlet; the end cap covers the first mounting port and forms a pressure relief chamber, and the end cap is provided with a pressure relief hole; the swing member is movably installed on the end cap or valve body; the first float connects to drive the swing member to swing, thereby opening / sealing the pressure relief hole.

4. A water inlet valve for preventing water leakage according to claim 3, characterized in that, The sealing piece is made of an elastic element and is installed at the bottom of the groove of the first installation port; the end cap presses against the periphery of the sealing piece and is provided with a guide rod passing through the water passage hole.

5. A water inlet valve for preventing water leakage according to claim 2, characterized in that, The second water-stopping assembly includes a plug, a connector, and a lifting rod; the plug is movably installed close to the water outlet; the bottom end of the lifting rod is installed on the second float, and the top end extends into the water outlet channel of the valve body and is connected to drive one end of the connector, and the other end of the connector passes through the water outlet and is connected to drive the plug to seal / open the water outlet.

6. A water inlet valve for preventing water leakage according to claim 5, characterized in that, The water outlet faces upward and is coaxially arranged with the water outlet channel of the valve body, and the water outlet channel of the valve body surrounds the water outlet; the lower part of the water outlet channel of the valve body is provided with a contraction, and a through hole is provided at the contraction position; the lifting rod enters the water outlet channel through the through hole and extends upward to the position of the water outlet.

7. A water inlet valve for preventing water leakage according to claim 5 or 6, characterized in that, The lifting rods are at least two in number, evenly distributed around the water outlet, and connected at the top; the connecting member is a connecting rod, or the connecting member is a pull rope, and the plug is a metal block.

8. A water inlet valve for preventing water leakage according to claim 2, characterized in that, A check valve or filter is provided between the water inlet and the water outlet of the second installation port.

9. A water inlet valve for preventing water leakage according to claim 1, characterized in that, The second buoy is provided with a guide hole; the second buoy is located directly above the first buoy; the screw of the first buoy passes through the guide hole and connects to the first water-stopping assembly.

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