Angle valve with filtering function

Abstract

This utility model belongs to the field of angle valve technology, and in particular to an angle valve with a filtering function. It includes: a valve body, with an inlet pipe and an outlet pipe respectively provided on the bottom and side wall for water inlet and outlet; a fixed cylinder, threadedly installed on the inner cavity of the inlet pipe at the end away from the outlet pipe; and a filter assembly, disposed within the inner cavity of the fixed cylinder. The filter assembly includes three rubber piston discs, which are slidably installed sequentially within the inner cavity of the fixed cylinder. Each of the three rubber piston discs has a filter screen plate on the side near the inlet of the inlet pipe. This utility model discloses an angle valve that, by adding a fixed cylinder to the inlet pipe, uses multiple filter screen plates with different pore sizes within the fixed cylinder to sequentially filter impurities of different particle sizes. This prevents impurities in the water from entering the valve body and causing valve core blockage, avoids the filter screen surface from being covered by dense mud cakes formed by impurities of various sizes, thus accelerating filter screen blockage and improving the filtering effect.

Description

Technical Field

[0001] This utility model belongs to the field of angle valve technology, specifically relating to an angle valve with a filtering function. Background Technology

[0002] An angle valve, also known as an angle gate valve, is a commonly used small pipeline control valve. Similar to a ball valve, its structure and characteristics are modified from the ball valve. The difference lies in the fact that the outlet and inlet of an angle valve are at a 90-degree angle. It is mainly used to control the water flow between water pipes and water-using appliances (such as faucets, toilets, and water heaters). It features precise opening and closing (simply rotate the handle 90 degrees to open or close), allowing for quick water shut-off during maintenance or equipment replacement to prevent backflow. Its compact L-shaped structure saves installation space, making it a crucial connection hub and safety control component in household and commercial water systems.

[0003] However, due to impurities in the water, most existing angle valves incorporate an internal filter structure to prevent these impurities from accumulating and clogging the valve core. However, these existing angle valves rely on a single filter screen for this purpose. As the water flows, various particles impact the screen, forming a dense sludge cake that clogs the filter pores. Furthermore, the filter screen is located inside the valve body and cannot be easily removed, hindering future maintenance. Therefore, there is an urgent need for an angle valve with a built-in filter that is highly clogging-resistant and easy to disassemble. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides an angle valve with a filtration function. By installing a fixed cylinder in the water inlet pipe, multiple filter screens with different pore sizes in the fixed cylinder sequentially filter impurities of different particle sizes, preventing impurities in the water from entering the valve body and causing valve core blockage, avoiding the filter screen surface from being covered by dense mud cakes formed by impurities of various sizes, thus accelerating filter screen blockage and improving the filtration effect, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An angle valve with filtering function includes:

[0007] The valve body has an inlet pipe and an outlet pipe for water inlet and drainage respectively installed at the bottom and side wall of the valve body;

[0008] A fixed cylinder is threadedly installed on the end of the inlet pipe away from the outlet pipe within its inner cavity.

[0009] The filter assembly is located inside the fixed cylinder. The filter assembly includes three rubber piston discs, which are slidably installed in the inner cavity of the fixed cylinder. Each of the three rubber piston discs has a filter screen plate on one side near the water inlet of the water inlet pipe, and a limiting ear on the other side. The limiting ear on the back of the filter screen plate presses it tightly against one side of the rubber piston disc for limiting its position. The filter hole diameter of the three filter screen plates decreases sequentially along the water inlet direction. The limiting ear has a reserved groove inside.

[0010] The limiting cylinder is threaded onto the bottom of the fixed cylinder to limit the position of the filter screen plate located at the bottom.

[0011] Preferably, the bottom of the fixed cylinder is provided with an annular baffle for limiting its position. The annular baffle is in close contact with the end face of the water inlet of the water inlet pipe, and the diameter of the annular baffle is smaller than the diameter of the water inlet pipe.

[0012] Preferably, the inlet pipe has a drain outlet for connecting with the outlet pipe, and the fixed cylinder has an outlet hole at one end of the inlet pipe cavity. The fixed cylinder is connected to the outlet pipe through the outlet hole and the drain outlet.

[0013] Preferably, a groove is provided on the side of the rubber piston disc near the water inlet of the water inlet pipe, and the filter screen is fitted and installed inside the groove.

[0014] Preferably, the end face of the rubber piston disc is provided with a communication port connected to the groove on the inner side of the limiting lug. The filter screen plate, which is installed inside the groove, is connected to the inner cavity of the fixed cylinder through the communication port, and the inner diameter of the communication port is smaller than the inner diameter of the water outlet hole.

[0015] Preferably, the bottom of the limiting cylinder is provided with a limiting end plate for limiting its position. The end face of the limiting end plate is provided with a threaded lug around the outside of the limiting cylinder. The end face of the annular baffle is provided with a threaded groove at the position corresponding to the threaded lug. The threaded lug is threadedly installed inside the threaded groove.

[0016] Preferably, a sealing gasket is provided around the end face of the annular baffle surrounding the outside of the fixed cylinder, and the annular baffle is tightly attached to the end face of the water inlet of the water inlet pipe through the sealing gasket.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] By installing a fixed cylinder into the inlet pipe, multiple filter screens with different pore sizes within the fixed cylinder sequentially filter impurities of varying particle sizes. This prevents impurities in the water from entering the valve body and causing valve core blockage, and avoids the filter screen surface from being covered by dense mud cakes formed by impurities of various sizes, thus accelerating filter screen blockage and improving filtration efficiency. Furthermore, the fixed cylinder can be directly disassembled, and the limiting cylinder at the bottom of the fixed cylinder can be removed to take out the rubber piston disc and filter screens inside the fixed cylinder for maintenance and replacement, which facilitates subsequent maintenance work. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional schematic diagram of the angle valve of this utility model;

[0021] Figure 2 This is a cross-sectional view of the angle valve in this utility model;

[0022] Figure 3 This is a schematic diagram showing the disassembled filter assembly and the fixed cylinder in this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the piston disc in this utility model;

[0024] Figure 5 for Figure 2 Enlarged schematic diagram of part A in the middle.

[0025] In the diagram: 1. Valve body; 11. Inlet pipe; 111. Drain outlet; 12. Outlet pipe; 2. Fixed cylinder; 201. Outlet hole; 21. Annular baffle; 211. Threaded groove; 22. Limiting cylinder; 23. Limiting end plate; 231. Threaded lug; 24. Sealing gasket; 3. Filter assembly; 31. Rubber piston disc; 311. Connecting port; 312. Groove; 32. Filter screen; 33. Limiting lug. Detailed Implementation

[0026] Please see Figures 1-5 In this embodiment: an angle valve with a filtering function includes: a valve body 1, with an inlet pipe 11 and an outlet pipe 12 for water inlet and water outlet respectively provided on the bottom and side wall of the valve body 1; the valve body 1 is connected to a pipeline through the inlet pipe 11, and the water in the pipeline is discharged through the outlet pipe 12 to realize the on-off control of the water flow in the pipeline.

[0027] In this embodiment, a fixed cylinder 2 is threadedly installed in the inner cavity of the water inlet pipe 11 at the end away from the water outlet pipe 12. The bottom of the fixed cylinder 2 is provided with an annular baffle 21 for limiting its position. The annular baffle 21 is tightly attached to the end face of the water inlet of the water inlet pipe 11, and the diameter of the annular baffle 21 is smaller than the diameter of the water inlet pipe 11. The fixed cylinder 2 is threaded into the water inlet pipe 11, and the annular baffle 21 is tightly attached to the end face of the water inlet pipe 11 through the sealing gasket 24, limiting the position of the fixed cylinder 2 and improving the sealing between the fixed cylinder 2 and the water inlet pipe 11. This achieves the installation of the fixed cylinder 2 on the water inlet pipe 11. At the same time, since the diameter of the annular baffle 21 is smaller than the diameter of the water inlet pipe 11, the annular baffle 21 will not interfere with the connection between the water inlet pipe 11 and the pipeline.

[0028] In this embodiment, the filter assembly 3 is disposed in the inner cavity of the fixed cylinder 2. The filter assembly 3 includes three rubber piston discs 31, which are slidably installed in the inner cavity of the fixed cylinder 2. Each of the three rubber piston discs 31 is provided with a filter screen plate 32 on the side near the water inlet of the water inlet pipe 11, and the pore size of the three filter screen plates 32 decreases sequentially along the water inlet direction. The filter screen plates 32 filter out impurities in the water entering the valve body 1 in the fixed cylinder 2, preventing impurities in the water from entering the valve body 1 and causing valve core blockage. At the same time, the filter screen plates 32 with different pore sizes sequentially filter impurities of different particle sizes, preventing the filter screen surface from being covered by dense mud cakes formed by impurities of various sizes, which accelerates filter screen blockage and improves the filtration effect.

[0029] In this embodiment, three rubber piston discs 31 are provided with limiting lugs 33 on the side away from the water inlet of the water inlet pipe 11. The limiting lugs 33 on the back of the filter screen plate 32 press tightly against one side of the rubber piston disc 31 for its limiting. The limiting lugs 33 have reserved slots inside. The limiting cylinder 22 is threadedly installed at the bottom of the fixed cylinder 2 to limit the position of the filter screen plate 32 at the bottom. The rubber piston discs 31 and the filter screen plate 32 are stacked in the inner cavity of the fixed cylinder 2 in sequence through the limiting lugs 33 and the limiting cylinder 22, which limits the rubber piston discs 31 and the filter screen plate 32, prevents the filter screen plate 32 from loosening or falling off, and ensures the use of the filter screen plate 32. Moreover, the non-adhesive impurities filtered by the filter screen plate 32 can accumulate in the reserved slots inside the limiting lugs 33 to prevent the filter screen plate 32 from clogging.

[0030] In this embodiment, the inlet pipe 11 has a drain port 111 for connecting with the outlet pipe 12. The fixed cylinder 2 is provided with a water outlet hole 201 at one end of the inner cavity of the inlet pipe 11. The fixed cylinder 2 is connected to the outlet pipe 12 through the water outlet hole 201 and the drain port 111. Water in the pipe flows into the fixed cylinder 2, enters the inlet pipe 11 through the water outlet hole 201 on the fixed cylinder 2, and then flows into the valve body 1 through the drain port 111 on the inlet pipe 11 and is discharged from the outlet pipe 12, thus ensuring the use of the valve body 1.

[0031] In this embodiment, a groove 312 is provided on the side of the rubber piston disc 31 near the water inlet of the water inlet pipe 11, and the filter screen plate 32 is snapped into the inside of the groove 312. The filter screen plate 32 is installed in the groove 312 on one side of the rubber piston disc 31, and the rubber piston disc 31 supports the filter screen plate 32 in the fixed cylinder 2. The piston sealing formed by the rubber piston disc 31 in the inner cavity of the fixed cylinder 2 improves the sealing between the filter screen plates 32, preventing impurities in the water from entering the valve body 1 through the gaps between the filter screen plates 32, resulting in strong sealing.

[0032] In this embodiment, the end face of the rubber piston disc 31 is provided with a communication port 311 connected to the groove 312 on the inner side of the limiting lug 33. The filter screen plate 32, which is installed inside the groove 312, is connected to the inner cavity of the fixed cylinder 2 through the communication port 311, and the inner diameter of the communication port 311 is the same as the inner diameter of the drain port 111. Water that has been filtered of impurities by the filter screen plate 32 flows into the inner cavity of the fixed cylinder 2 through the communication port 311, ensuring the flow of water. Moreover, since the inner diameter of the communication port 311 is smaller than the inner diameter of the water outlet 201, the rubber piston disc 31 can be directly pushed to slide in the inner cavity of the fixed cylinder 2 at the water outlet 201, thereby realizing the disassembly of the rubber piston disc 31.

[0033] In this embodiment, the bottom of the limiting cylinder 22 is provided with a limiting end plate 23 for limiting its position. The end face of the limiting end plate 23 is provided with a threaded lug 231 around the outside of the limiting cylinder 22. The end face of the annular baffle 21 is provided with a threaded groove 211 at the position corresponding to the threaded lug 231. The threaded lug 231 is threadedly installed inside the threaded groove 211. By installing the threaded lug 231 inside the threaded groove 211, the limiting cylinder 22 extends into the inner cavity of the fixed cylinder 2 to press the rubber piston disc 31 and the filter screen 32, thereby limiting the rubber piston disc 31 and the filter screen 32.

[0034] The angle valve with filtration function proposed in this utility model is installed in the water inlet pipe 11 with a fixed cylinder 2. The water in the pipe is installed on the pipeline and the water in the pipeline enters the fixed cylinder 2 and flows through three filter screens 32 in sequence. The three filter screens 32 with different filter hole diameters filter impurities of different particle sizes in sequence, preventing impurities in the water from entering the valve body 1 and causing valve core blockage. It also avoids the filter screen surface from being covered by dense mud cake formed by impurities of various sizes, which accelerates filter screen blockage and improves the filtration effect. Moreover, the fixed cylinder 2 can be directly removed from the water inlet pipe 11 and the limiting cylinder 22 at the bottom of the fixed cylinder 2 can be removed to take out the rubber piston disc 31 and filter screen 32 inside the fixed cylinder 2 for maintenance and replacement, which is beneficial for later maintenance work.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An angle valve with filtering function, characterized in that: include: The valve body (1) is provided with an inlet pipe (11) for water inlet and a outlet pipe (12) for water inlet and water outlet respectively on the bottom and side wall of the valve body (1). A fixed cylinder (2) is threadedly installed on the end of the inner cavity of the water inlet pipe (11) away from the water outlet pipe (12); The filter assembly (3) is disposed in the inner cavity of the fixed cylinder (2). The filter assembly (3) includes three rubber piston discs (31). The three rubber piston discs (31) are slidably installed in the inner cavity of the fixed cylinder (2). Each of the three rubber piston discs (31) is provided with a filter screen plate (32) on one side near the water inlet of the water inlet pipe (11), and a limiting ear (33) is provided on the other side. The limiting ear (33) located on the back of the filter screen plate (32) presses it tightly against one side of the rubber piston disc (31) for its limiting. The filter hole diameter of the three filter screen plates (32) decreases sequentially along the water inlet direction. The limiting ear (33) has a reserved empty groove inside. A limiting cylinder (22) is threadedly installed at the bottom of the fixed cylinder (2) to limit the position of the filter screen (32) located at the bottom.

2. The angle valve with filtering function according to claim 1, characterized in that: The bottom of the fixed cylinder (2) is provided with an annular baffle (21) for limiting its position. The annular baffle (21) is in close contact with the end face of the water inlet of the water inlet pipe (11), and the diameter of the annular baffle (21) is smaller than the diameter of the water inlet pipe (11).

3. The angle valve with filtering function according to claim 1, characterized in that: The inlet pipe (11) has a drain outlet (111) for communicating with the outlet pipe (12). The fixed cylinder (2) is provided with a water outlet hole (201) at one end of the inner cavity of the inlet pipe (11). The fixed cylinder (2) is connected to the outlet pipe (12) through the water outlet hole (201) and the drain outlet (111).

4. The angle valve with filtering function according to claim 3, characterized in that: The rubber piston disc (31) has a groove (312) on the side near the water inlet of the water inlet pipe (11), and the filter screen (32) is fitted inside the groove (312).

5. The angular valve with filtering function according to claim 4, characterized in that: The end face of the rubber piston disc (31) is located inside the limiting lug (33) and has a communication port (311) that communicates with the groove (312). The filter screen plate (32) that is fitted inside the groove (312) is connected to the inner cavity of the fixed cylinder (2) through the communication port (311), and the inner diameter of the communication port (311) is smaller than the inner diameter of the water outlet (201).

6. The angle valve with filtering function according to claim 2, characterized in that: The bottom of the limiting cylinder (22) is provided with a limiting end plate (23) for limiting its position. The end face of the limiting end plate (23) is provided with a threaded lug (231) around the outside of the limiting cylinder (22). The end face of the annular baffle (21) is provided with a threaded groove (211) at the position corresponding to the threaded lug (231). The threaded lug (231) is threadedly installed inside the threaded groove (211).

7. The angular valve with filtering function according to claim 2, characterized in that: The end face of the annular baffle (21) is provided with a sealing gasket (24) around the outside of the fixed cylinder (2), and the annular baffle (21) is tightly attached to the end face of the water inlet of the water inlet pipe (11) through the sealing gasket (24).

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