Water inlet valve switch with double-layer filter screen

Abstract

The utility model discloses a water inlet valve switch with a double-layer filter screen, which relates to the technical field of water inlet valves and comprises a water inlet valve main body, a water inlet pipe is arranged above the water inlet valve main body, a water outlet pipe is arranged below the water inlet valve main body, and a connecting pipe orifice is arranged below the water outlet pipe. A connecting block is arranged between the connecting pipe opening and the water outlet pipe, a through hole is formed in the connecting block, a filter assembly is arranged in the water inlet valve body, a fixing groove is formed in the inner wall of the filter assembly, a first sealing ring is arranged on the inner side of the fixing groove, and a first filter screen is arranged on the side face of the filter assembly. According to the water inlet valve switch with the double-layer filter screen, the water inlet valve body is connected with an external water pipe through the arranged water inlet pipe, impurities in water are filtered through the arranged first filter screen and the arranged second filter screen, and water in the water inlet valve body is prevented from flowing back through the arranged water return valve.

Description

Technical Field

[0001] The utility model relates to the technical field of water inlet valves, in particular to a water inlet valve switch with a double-layer filter screen. Background Technique

[0002] As an accident valve and a maintenance valve, the water inlet valve usually has only two working states: fully open or fully closed. The water inlet valve has the advantages of simple structure, convenient maintenance, low cost, small hydraulic loss when fully open, good sealing performance when fully closed, and will not be opened or closed automatically due to water flow impact. Therefore, there is no need to set a locking device. When opening, the water inlet valve should meet three basic conditions: the water pressures on both sides of the water inlet valve are basically equal, the sealing device withdraws from the working position, and the locking device withdraws, and then the valve can be opened (static water opening). The water inlet valve is not allowed to be opened under dynamic water conditions because this will not only increase the operating torque but also is not required in operation.

[0003] When the existing water inlet valve switch is installed and used, the filtering efficiency of impurities in the water flow is relatively low, resulting in impurities in the water being easily blocked by the valve, and it is not convenient for the staff to install and replace the filtering mechanism, affecting the normal operation of the equipment, which brings certain adverse effects to the use process. In order to solve the deficiencies of the existing technology, we propose a water inlet valve switch with a double-layer filter screen. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a water inlet valve switch with a double-layer filter screen, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A water inlet valve switch with a double-layer filter screen, including a water inlet valve main body, a water inlet pipe is arranged above the water inlet valve main body, a water outlet pipe is arranged below the water inlet valve main body, a connecting pipe orifice is arranged below the water outlet pipe, a connecting block is arranged between the connecting pipe orifice and the water outlet pipe, a through hole is arranged inside the connecting block, a filtering component is arranged inside the water inlet valve main body, a fixing block is arranged on the side of the filtering component, connecting threads are arranged on the outer sides of the filtering component and the water inlet pipe, a fixing groove is arranged on the inner wall of the filtering component, a first sealing ring is arranged inside the fixing groove, a first filter screen is arranged on the side of the filtering component, a convex block is arranged on the side of the first filter screen, and a water inlet is arranged inside the convex block.

[0007] Preferably, a return water valve is arranged inside the water inlet pipe. A first clamping groove is arranged on the inner side wall of the return water valve. A second sealing ring is arranged inside the first clamping groove. A limiting block and an anti - detachment block are arranged below the return water valve. A connecting rod is arranged between the anti - detachment block and the return water valve. A plurality of drain holes are arranged on the inner wall of the return water valve. A baffle is arranged below the return water valve. A limiting groove is arranged on the inner wall of the baffle. The limiting block slides inside the limiting groove. A second filter screen is arranged below the baffle.

[0008] Preferably, the connecting pipe orifice is detachably connected to the water outlet pipe through the arranged connecting block and connecting thread. The fixing block is fixedly arranged on the side of the filtering component. The filtering component is detachably connected to the main body of the water inlet valve through the arranged connecting thread.

[0009] Preferably, the first filter screen is fixedly arranged on the side of the filtering component. The first sealing ring is detachably connected to the filtering component through the arranged fixing groove. The convex block is fixedly arranged on the side of the first filter screen.

[0010] Preferably, the return water valve is detachably connected to the water outlet pipe. The second sealing ring is detachably connected to the return water valve through the arranged clamping groove. The anti - detachment block and the limiting block are fixedly arranged below the return water valve.

[0011] Preferably, the connecting rod passes through the inner wall of the baffle. The return water valve is slidably connected to the baffle through the arranged connecting rod and anti - detachment block. The second filter screen is detachably connected to the baffle.

[0012] Beneficial effects

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, the main body of the water inlet valve is connected to the water supply pipe through the arranged water outlet pipe. The connecting pipe orifice facilitates the staff to connect the main body of the water inlet valve to the external water pipe. The connecting block facilitates the staff to replace connecting pipe orifices of different specifications according to the diameter of the water pipe, which is convenient for the staff to install and disassemble the main body of the water inlet valve. The arranged filtering component filters impurities in the water entering the water pipe.

[0015] 2. In the present utility model, the set fixing blocks facilitate the staff to rotate the filtering assembly, so as to disassemble it, which is convenient for the staff to clean the impurities inside the first filter screen. The set first sealing ring seals the filtering assembly to prevent leakage. The set return water valve prevents the water flow inside the main body of the inlet valve from flowing back. The set second sealing ring seals the return water valve to prevent leakage. The set anti - detachment block and connecting rod limit the return water valve. At the same time, the set second filter screen filters the impurities in the water flow entering the main body of the inlet valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is the schematic diagram of the structure of the main body of the inlet valve of the present utility model;

[0018] Figure 3 is the schematic diagram of the structure of the connecting member of the present utility model;

[0019] Figure 4 is the schematic diagram of the structure of the reflux device of the present utility model;

[0020] Figure 5 is the schematic diagram of the structure of the filtering device of the present utility model.

[0021] In the figure: 1. Main body of the inlet valve; 2. Inlet pipe; 3. Outlet pipe; 4. Connecting thread; 5. Filtering assembly; 6. Connecting block; 7. Through hole; 8. Return water valve; 9. Card slot; 10. Drainage hole; 11. Limit groove; 12. Connecting rod; 13. Baffle; 14. Anti - detachment block; 15. Fixing block; 16. Fixing groove; 17. Water inlet; 18. Convex block; 19. First filter screen; 20. Connecting pipe orifice; 21. First sealing ring; 22. Limit block; 23. Second sealing ring; 24. Second filter screen. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific embodiments.

[0023] Such as Figures 1 - 3As shown, a water inlet valve switch with a double-layer filter screen comprises a water inlet valve body 1, a water inlet pipe 2 is arranged above the water inlet valve body 1, and a water outlet pipe 3 is arranged below the water inlet valve body 1. The water inlet valve body 1 is connected to an external water supply pipeline through the arranged water inlet pipe 2, and a connecting block 6 is arranged inside the water inlet pipe 2. The connecting block 6 is passed through the inside of the connecting pipe opening 20. The staff inserts the hexagonal wrench into the inside of the through hole 7 and rotates the wrench to fix the connecting pipe opening 20 and the water outlet pipe 3. The arranged connecting pipe opening 20 makes it convenient for the staff to connect the water inlet valve body 1 to the external pipeline, and at the same time, it is convenient for the staff to replace the connecting pipe openings 20 of different specifications according to the diameter of the pipeline.

[0024] like Figure 4 As shown, a water inlet valve switch with a double-layer filter screen is provided, a return valve 8 is provided inside the water inlet pipe 2, the return valve 8 is fixed on the inner side of the water inlet pipe 2, and the return valve 8 is sealed by a second sealing ring 23 to prevent water from entering the inside of the water inlet valve body 1 through the gap between the return valve 8 and the water inlet pipe 2 to affect the water source quality. The provided card slot 9 is convenient for the staff to install and disassemble the second sealing ring 23, and the second sealing ring 23 is limited to prevent it from deflecting. When the water source enters the inside of the water inlet valve body 1 from the water inlet pipe 2, the water flows into the inside of the water inlet valve body 1 from the drainage hole 10, and the impact force of the water flow will separate the baffle 13 from the return valve 8, so that water quickly enters the inside of the water inlet valve body 1 for water supply, and the return valve 8 and the baffle 13 are limited by the provided connecting rod 12 and the anti-slip block 14 to prevent them from slipping, and the impurities in the water entering the inside of the water inlet valve body 1 are filtered by the provided second filter screen 24.

[0025] like Figure 5 As shown, a water inlet valve switch with a double-layer filter screen is fixedly provided with a fixing block 15 on the side of the filter component 5. The fixed block 15 and the connecting thread 4 are convenient for the staff to rotate the filter component 5, so as to facilitate its installation and disassembly and clean the impurities filtered by the first filter screen 19. The fixed groove 16 is convenient for the staff to install and disassemble the first sealing ring 21, and the first sealing ring 21 is limited at the same time. The filter component 5 is sealed by the first sealing ring 21 to prevent leakage. The water source inside the water inlet valve body 1 enters the interior of the first filter screen 19 through the water inlet 17. The interior of the water inlet valve body 1 is sealed by the protrusion 18, so that all water sources enter the interior of the first filter screen 19 from the water inlet 17. The impurities in the water are deeply filtered by the first filter screen 19 to improve the water source quality.

[0026] It greatly reduces the labor intensity of the staff, facilitates the operation of the workers, improves the practicability of the equipment, reduces the investment cost, and improves the market competitive advantage.

[0027] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A water inlet valve switch with a double-layer filter screen, comprising a water inlet valve body (1), characterized in that: A water inlet pipe (2) is arranged above the water inlet valve body (1), a water outlet pipe (3) is arranged below the water inlet valve body (1), a connecting pipe opening (20) is arranged below the water outlet pipe (3), a connecting block (6) is arranged between the connecting pipe opening (20) and the water outlet pipe (3), a through hole (7) is arranged inside the connecting block (6), a filter assembly (5) is arranged inside the water inlet valve body (1), and a filter assembly (5) is arranged on the side of the filter assembly (5). A fixing block (15) is provided, the outer sides of the filter assembly (5) and the water inlet pipe (2) are both provided with connecting threads (4), the inner wall of the filter assembly (5) is provided with a fixing groove (16), the inner side of the fixing groove (16) is provided with a first sealing ring (21), the side of the filter assembly (5) is provided with a first filter screen (19), the side of the first filter screen (19) is provided with a protrusion (18), and the inner wall of the protrusion (18) is provided with a water inlet (17).

2. The water inlet valve switch with a double-layer filter according to claim 1, characterized in that: A return valve (8) is arranged inside the water inlet pipe (2), a first clamping groove (9) is arranged on the inner wall of the side of the return valve (8), a second sealing ring (23) is arranged on the inner side of the first clamping groove (9), a limiting block (22) and an anti-slipping block (14) are arranged below the return valve (8), a connecting rod (12) is arranged between the anti-slipping block (14) and the return valve (8), a plurality of drainage holes (10) are arranged on the inner wall of the return valve (8), a baffle (13) is arranged below the return valve (8), a limiting groove (11) is arranged on the inner wall of the baffle (13), the limiting block (22) slides on the inner side of the limiting groove (11), and a second filter screen (24) is arranged below the baffle (13).

3. The water inlet valve switch with a double-layer filter according to claim 1, characterized in that: The connecting pipe opening (20) is detachably connected to the water outlet pipe (3) via a connecting block (6) and a connecting thread (4); the fixing block (15) is fixedly arranged on the side of the filter assembly (5); and the filter assembly (5) is detachably connected to the water inlet valve body (1) via a connecting thread (4).

4. The water inlet valve switch with a double-layer filter according to claim 1, characterized in that: The first filter screen (19) is fixedly arranged on the side of the filter assembly (5), the first sealing ring (21) is detachably connected to the filter assembly (5) through a fixed groove (16), and the protrusion (18) is fixedly arranged on the side of the first filter screen (19).

5. The water inlet valve switch with a double-layer filter according to claim 2, characterized in that: The water return valve (8) is detachably connected to the water outlet pipe (3), the second sealing ring (23) is detachably connected to the water return valve (8) via a provided clamping groove (9), and the anti-dropping block (14) and the limiting block (22) are fixedly arranged below the water return valve (8).

6. The water inlet valve switch with a double-layer filter according to claim 2, characterized in that: The connecting rod (12) passes through the inner wall of the baffle (13); the return valve (8) is slidably connected to the baffle (13) via the connecting rod (12) and the anti-detachment block (14); and the second filter screen (24) is detachably connected to the baffle (13).

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