Filter structure of water inlet valve

Abstract

The utility model discloses a filtering structure of a water inlet valve. The filtering structure comprises a three-way connecting piece, a filter body and an end cover, a first water flow channel, a second water flow channel and an installation channel which are communicated with one another are formed in the three-way connecting piece, the installation channel extends to the communication position of the first water flow channel and the second water flow channel, an installation opening is formed in the end of the installation channel, and the filter body is placed into the installation channel from the installation opening. The filter body extends to the communication position of the first water flow channel and the second water flow channel, so that water flows out after being filtered when entering the first water flow channel or the second water flow channel, and the end cover is used for blocking the mounting opening; one of the first water flow channel and the second water flow channel is communicated with the water inlet pipe, and the other one of the first water flow channel and the second water flow channel is used for being detachably connected with the water inlet valve. The assembly mode is flexible, when the filter body is cleaned, the filter body is taken out from the three-way connecting piece to be cleaned, the inner wall of the water inlet valve cannot be abraded, and the service life of the water inlet valve is prolonged.

Description

Technical Field

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

[0002] Existing water inlet valves typically have a filter screen inserted in the water inlet channel. The main function of the filter screen is to filter impurities in the water entering the toilet, such as dirt and particles, preventing them from entering the water inlet valve and the toilet, thus protecting the water inlet valve and the toilet from the risk of blockage and maintaining normal flushing. In order to maintain normal flushing effect, the filter screen needs to be cleaned regularly. Therefore, the filter screen needs to be removed from the water inlet channel of the water inlet valve, cleaned, and then reinstalled. Repeated disassembly and reassembly will cause varying degrees of wear to the water inlet channel of the water inlet valve. Therefore, a more convenient and easily replaceable filter structure is needed to solve this problem. Utility Model Content

[0003] The purpose of this utility model is to provide a water inlet valve filter structure. The technical problem it solves is that the filter body is installed on the three-way connector, and the filter body can be disassembled and cleaned from the three-way connector during cleaning without causing wear to the water inlet valve.

[0004] To achieve the above objectives, the solution of this utility model is as follows: it includes a three-way connector, a filter body, and an end cap;

[0005] The three-way connector forms a first water flow channel, a second water flow channel, and an installation channel that are interconnected. The installation channel extends to the connection between the first water flow channel and the second water flow channel. An installation port is formed at the end of the installation channel. The filter body is inserted into the installation channel through the installation port. The filter body extends to the connection between the first water flow channel and the second water flow channel so that the water flow in the first water flow channel can flow through the filter body for filtration and then enter the second water flow channel, or the water flow in the second water flow channel can flow through the filter body for filtration and then enter the first water flow channel. The end cap is used to seal the installation port.

[0006] One of the first and second water flow channels is connected to the inlet pipe, and the other of the first and second water flow channels is used for detachable connection with the inlet valve.

[0007] Furthermore, the first water flow channel is coaxially arranged with the installation channel.

[0008] Furthermore, the tee connector has a T-shaped structure, with the first water flow channel and the second water flow channel perpendicular to each other.

[0009] Furthermore, the filter body has a cylindrical structure. After being inserted into the installation channel through the installation port, the filter body is divided into a filter cavity within the installation channel. The end of the filter body facing the first water flow channel is sealed and connected to the first water flow channel, so that the filter cavity is only connected to the first water flow channel. After the water flows into the filter cavity from the first water flow channel, it is filtered by the side wall of the filter body and then enters the second water flow channel; or the water flows into the second water flow channel, is filtered by the side wall of the filter body, and then enters the first water flow channel from the filter cavity.

[0010] Furthermore, an outer filter cavity is formed between the outer wall of the filter body and the inner wall of the installation channel. The outer filter cavity surrounds the inner filter cavity and is connected to the second water flow channel.

[0011] Furthermore, the installation channel extends radially inward from the end opposite to the installation port to form an annular flange, and the filter cavity forms a water outlet on the side wall of the first water flow channel. The outer edge of the water outlet protrudes radially outward to form a protrusion, so that after the filter body is installed in the installation channel, the protrusion abuts against the annular flange, and the outer wall of the protrusion abuts against the inner wall of the installation channel, so that the water outlet is only connected to the first water flow channel.

[0012] Furthermore, the filter body has a disassembly post protruding outward along the axial direction at the end facing the installation port. The disassembly post protrudes out of the installation port, and the top wall of the end cover extends axially into the installation channel to form a limiting groove. After the end cover is screwed and fixed to the installation port, the disassembly post is inserted into the limiting groove, and at the same time, the protrusion is pressed against the annular flange along the axial direction to limit the axial movement of the filter body.

[0013] Furthermore, the outer wall of the filter body is provided with several ribs, which are arranged in a circumferential ring so that when the filter body is installed in the installation channel, the ribs abut against the inner wall of the installation channel.

[0014] Furthermore, it also includes fasteners, which are used to connect and fix the water inlet pipe to the tee connector, or to connect and fix the water inlet valve to the tee connector.

[0015] Furthermore, an adapter is formed on the end cap, which is used to connect the posterior shower head. After the water flows through the side wall of the filter body and is filtered, it passes through the connector and is sprayed out from the posterior shower head.

[0016] The beneficial effects of this utility model after adopting the above solution are as follows: The three-way connector forms a first water flow channel, a second water flow channel, and an installation channel that are interconnected. The installation channel extends to the connection point of the first and second water flow channels. An installation port is formed at the end of the installation channel. The filter body is inserted into the installation channel through the installation port. The filter body extends to the connection point of the first and second water flow channels. Water can enter from the first water flow channel, be filtered by the filter body, and then enter the second water flow channel. Water can also enter from the second water flow channel, be filtered by the filter body, and then enter the first water flow channel. Filtration can be achieved when water enters from either water flow channel. Therefore, the inlet valve can be installed in either the first or second water flow channel. This allows for flexible installation according to the specific installation environment during assembly, making it more flexible and convenient to use. When cleaning the filter body, the three-way connector can be disassembled separately before removing the filter body for cleaning. This will not cause wear on the inner wall of the inlet valve, resulting in a longer service life. At the same time, it is not limited to operation in a certain space, making it more convenient to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the combined structure of the end cap of this utility model being placed on the tee connector.

[0018] Figure 2 yes Figure 1 Decomposition structure diagram Figure 1 .

[0019] Figure 3 yes Figure 1 Another perspective on the decomposition structure Figure 2 .

[0020] Figure 4 This is a cross-sectional structural diagram of the tee connector of this utility model.

[0021] Figure 5 This is a schematic diagram showing the water flow direction after the filter body of this utility model is placed into the installation channel.

[0022] Figure 6 This is a schematic diagram showing another water flow direction after the filter body of this utility model is placed into the installation channel.

[0023] Figure 7 This is a three-dimensional structural diagram of the filter body of this utility model.

[0024] Figure 8 This is a schematic diagram of the first combination structure of the three-way connector of this utility model, the water inlet pipe, and the water inlet valve.

[0025] Figure 9 yes Figure 8 A schematic diagram of its decomposed structure.

[0026] Figure 10 This is a schematic diagram of the second combination structure of the three-way connector of this utility model, the water inlet pipe, and the water inlet valve.

[0027] Figure 11 This is a schematic diagram of the third combination structure of the three-way connector of this utility model, assembled with the water inlet pipe and the water inlet valve.

[0028] Figure 12 This is a schematic diagram of the connector being installed in the mounting port in another embodiment of the present invention.

[0029] Labeling Explanation: 1-Tee connector, 2-Filter body, 3-End cap, 4-First water flow channel, 5-Second water flow channel, 6-Installation channel, 7-Inlet pipe, 8-Inlet valve, 9-Fixing component, 10-Adapter, 11-First water seal, 12-Second water seal, 13-Third water seal, 14-Snap-fit ​​component, 61-Installation port, 62-Inner filter cavity, 63-Outer filter cavity, 64-Annular flange, 65-First sealing groove, 66-Second sealing groove, 67-Third sealing groove, 21-Water outlet, 22-Protrusion, 23-Disassembly column, 24-Rib, 31-Limiting groove. Detailed Implementation

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Unless otherwise expressly defined, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" in the claims, description, and accompanying drawings of this invention is merely for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0032] like Figures 1 to 12 As shown, this utility model provides a water inlet valve filter structure, including a three-way connector 1, a filter body 2, and an end cap 3; focusing on... Figure 4 As shown, the three-way connector 1 forms a first water flow channel 4, a second water flow channel 5, and an installation channel 6 that are interconnected. The installation channel 6 extends to the connection point of the first water flow channel 4 and the second water flow channel 5. An installation port 61 is formed at the end of the installation channel 6, which is used for key connections. Figure 5As shown, the filter body 2 is inserted into the installation channel 6 through the installation port 61. The filter body 2 extends to the connection between the first water flow channel 4 and the second water flow channel 5, so that the water in the first water flow channel 4 can flow through the filter body 2 for filtration before entering the second water flow channel 3, or the water in the second water flow channel 3 can flow through the filter body 2 for filtration before entering the first water flow channel 4. Several annular filter holes are formed through the side wall of the filter body 2. The filter holes are arranged in an axial array along the side wall of the filter body 2, which can block dirt or larger particles. Of course, the side wall of the filter body 2 can also be mesh-like, as long as it can filter dirt or larger particles, there is no specific limitation. The end cap 3 is used to seal the installation port 61. Specifically, the inner wall of the end cap 3 is provided with an internal thread, and the outer wall of the installation port 61 is provided with an external thread that mates with the internal thread. It also includes a first water seal 11. A first sealing groove 65 is formed on the outer wall of the installation port 61. The first water seal 11 is an annular sealing ring, and it is embedded in the first sealing groove 65. When the end cap 3 is screwed onto the installation port 61, the first water seal 11 presses against the inner wall of the end cap 3, forming a water seal between the end cap 3 and the tee connector 1. One of the first water flow channel 4 and the second water flow channel 5 is connected to the inlet pipe 7, and the other of the first water flow channel 4 and the second water flow channel 5 is used for detachable connection with the inlet valve 8. (Focus on...) Figure 9 As shown, the tee connector 1 has a second sealing groove 66 formed on the outer wall of the first water flow channel 4, and a third sealing groove 67 formed on the outer wall of the second water flow channel 5. It also includes a second water seal 12 and a third water seal 13, both of which are annular sealing rings. The second water seal 12 is embedded in the second sealing groove 66, and the third water seal 13 is embedded in the third sealing groove 67. When the water inlet pipe 7 and the water inlet valve 8 are detachably installed on the tee connector 1, the second water seal 12 abuts against the inner wall of the water inlet pipe 7 or the water inlet valve 8, and the third water seal 13 abuts against the inner wall of the water inlet pipe 7 or the water inlet valve 8. It also includes a fixing member 9, which is used to connect and fix the water inlet pipe 7 to the tee connector 1, or to connect and fix the water inlet valve 8 to the tee connector 1.

[0033] In this specific embodiment, the first water flow channel 4 and the installation channel 6 are coaxially arranged, and an angle is formed between the first water flow channel 4 and the second water flow channel 5. For greater applicability and replaceability, preferably, the tee connector 1 has a T-shaped structure, with the first water flow channel 4 and the second water flow channel 5 perpendicular to each other. When the inlet pipe 7 and the inlet valve 8 are installed on the tee connector 1, various assembly methods can be achieved. Figure 8 In the first assembly method, the water inlet pipe 7 and the installation channel 6 are coaxially arranged. The installation channel 6 is arranged longitudinally and is located above the water inlet pipe 7. This is a bottom water inlet method. After the water enters from below the water inlet pipe 7, it flows through the filter body 2 and then flows into the water inlet valve 8 after filtration. Figure 10The second assembly method differs from the first assembly method in that the installation channel 6 is located below the water inlet pipe 7, which is an upper water inlet method. After the water enters from above the water inlet pipe 7, it flows through the filter body 2, and after filtration, it flows into the water inlet valve 8. Figure 11 In the third assembly method, the inlet pipe of the inlet valve 8 is coaxially arranged with the installation channel 6. The installation channel 6 is arranged horizontally, and the tee connector 1 is placed in a T-shape. It is also a bottom water inlet method. The water flows in from below the inlet pipe 7, flows through the filter body 2, is filtered, and then flows into the inlet valve 8. Based on the third assembly method, the tee connector 1 can also be inverted to form an inverted T-shape, forming a top water inlet method. The assembly is flexible and can be changed flexibly according to the installation environment. It is simple and convenient to use.

[0034] Key points combined Figure 5 and Figure 6 As shown, the filter body 2 has a cylindrical structure. After being inserted into the installation channel 6 through the installation port 61, the filter body 2 separates into a filter cavity 62 within the installation channel 6. The end of the filter body 2 facing the first water flow channel 4 is sealed to the first water flow channel 4, so that the filter cavity 62 is only connected to the first water flow channel 4. After the water flows into the filter cavity 62 from the first water flow channel 4, it is filtered by the side wall of the filter body 2 and then enters the second water flow channel 5. Figure 5 (as shown); or the water flows into the second water flow channel 5, is filtered through the side wall of the filter body 2, and then enters the first water flow channel 4 from the filter inner cavity 62 (as shown); Figure 6 (as shown); Preferably, an outer filter cavity 63 is formed between the outer wall of the filter body 2 and the inner wall of the installation channel 6. The outer filter cavity 63 surrounds the inner filter cavity 62 and is connected to the second water flow channel 5 to increase the water flow area and facilitate water flow.

[0035] Key points combined Figure 1-3 As shown, the installation channel 6 extends radially inward from the installation port 61 to form an annular flange 64. The filter cavity 62 passes through the side wall of the first water flow channel 4 to form a water outlet 21. The outer edge of the water outlet 21 protrudes radially outward to form a protrusion 22. The protrusion 22 has an annular structure. After the filter body 2 is installed in the installation channel 6, the protrusion 22 abuts against the annular flange 64, and the outer wall of the protrusion 22 abuts against the inner wall of the installation channel 6, so that the water outlet 21 is only connected to the first water flow channel 4.

[0036] In this specific embodiment, the filter body 2 has a disassembly post 23 protruding axially outward from the end facing the mounting port 61. The disassembly post 23 protrudes from the mounting port 61. The top wall of the end cap 3 extends axially into the mounting channel 6 to form a limiting groove 31. After the end cap 3 is screwed and fixed to the mounting port 61, the disassembly post 23 is inserted into the limiting groove 31 to limit the axial movement of the filter body 2 (e.g., ...). Figure 5-6 (As shown).

[0037] The outer wall of the filter body 2 is provided with a number of protruding ribs 24. The protruding ribs 24 are arranged in a ring around the periphery so that when the filter body 2 is installed in the installation channel 6, the protruding ribs 24 abut against the inner wall of the installation channel 6, so that the filter body 2 can be fixed radially in the installation channel 6.

[0038] Key points combined Figure 9 As shown, the fixing member 9 is a movable nut, which is axially through-type. The tee connector 1 has three connectors, one of which has an installation channel 6, and the other two have a first water flow channel 4 and a second water flow channel 5, respectively. Movable nuts are movably fitted onto these two connectors. The tee connector 14 is also included, used to connect the movable nut to the tee connector 1. When the movable nut is fitted onto the connector along its axis, an annular gap is formed between it and the connector. The snap-fit ​​14 slides into the annular gap. The snap-fit ​​14 can be a C-ring or... As shown in the figure, the conical ring has an annular groove on the connector head. The snap-fit ​​part 14 is embedded in the groove and abuts against the movable nut, preventing the movable nut from sliding out of the connector head and connecting the movable nut with the connector head. The connector head is used to insert into the water inlet pipe 7 or the water inlet valve 8 and seal the connection. The inner wall of the movable nut has an internal thread, and the outer walls of the water inlet pipe 7 and the water inlet valve 8 have external threads, which can be screwed into the movable nut. In use, the water inlet pipe 7 and the water inlet valve 8 are inserted into the connector head respectively, and then the movable nut is rotated to fix the water inlet pipe 7 and the water inlet valve 8 together with the three-way connector 1.

[0039] In another embodiment, an adapter 10 is formed on the end cap 3. The adapter 10 is used to connect to the posterior shower head (not shown in the figure). One end of the adapter 10 is screwed to the connector of the tee connector 1 located at one end of the mounting port 21. The adapter 10 and the posterior shower head are connected by a water pipe. The other end of the adapter 10 is used to make a sealed connection with the water pipe. After the water flows through the side wall of the filter body 2 and is filtered, it passes through the connector 10 and is sprayed out from the posterior shower head.

[0040] 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 filter structure, characterized in that: It includes a three-way connector (1), a filter body (2), and an end cap (3); The three-way connector (1) forms a first water flow channel (4), a second water flow channel (5), and an installation channel (6) that are interconnected. The installation channel (6) extends to the connection between the first water flow channel (4) and the second water flow channel (5). An installation port (61) is formed at the end of the installation channel (6). The filter body (2) is inserted into the installation channel (6) through the installation port (61). The filter body (2) extends to the connection between the first water flow channel (4) and the second water flow channel (5) so that the water flow in the first water flow channel (4) can flow through the filter body (2) for filtration and then enter the second water flow channel (3), or so that the water flow in the second water flow channel (3) can flow through the filter body (2) for filtration and then enter the first water flow channel (4). The end cap (3) is used to seal the installation port (61). One of the first water flow channel (4) and the second water flow channel (5) is connected to the water inlet pipe (7), and the other of the first water flow channel (4) and the second water flow channel (5) is used for detachable connection with the water inlet valve (8).

2. The inlet valve filter structure according to claim 1, characterized in that: The first water flow channel (4) is coaxially arranged with the installation channel (6).

3. The inlet valve filter structure according to claim 2, characterized in that: The three-way connector (1) has a T-shaped structure, and the first water flow channel (4) and the second water flow channel (5) are perpendicular to each other.

4. The inlet valve filter structure according to any one of claims 1-3, characterized in that: The filter body (2) has a cylindrical structure. After being inserted into the installation channel (6) through the installation port (61), the filter body (2) is separated into a filter cavity (62) in the installation channel (6). The end of the filter body (2) facing the first water flow channel (4) is sealed to the inner wall of the first water flow channel (4), so that the filter cavity (62) is only connected to the first water flow channel (4). After the water flows from the first water flow channel (4) into the filter cavity (62), it is filtered by the side wall of the filter body (2) and then enters the second water flow channel (5); or the water flows into the second water flow channel (5), is filtered by the side wall of the filter body (2), and then enters the first water flow channel (4) from the filter cavity (62).

5. The inlet valve filter structure according to claim 4, characterized in that: The outer wall of the filter body (2) and the inner wall of the installation channel (6) form a filter outer cavity (63), which surrounds the filter inner cavity (62) and is connected to the second water flow channel (5).

6. The inlet valve filter structure according to claim 4, characterized in that: The installation channel (6) extends radially inward at one end away from the installation port (61) to form an annular flange (64). The filter cavity (62) passes through the side wall of the first water flow channel (4) to form a water outlet (21). The outer edge of the water outlet (21) protrudes radially outward to form a protrusion (22). After the filter body (2) is installed in the installation channel (6), the protrusion (22) abuts against the annular flange (64), and the outer side wall of the protrusion (22) abuts against the inner side wall of the installation channel (6), so that the water outlet (21) is only connected to the first water flow channel (4).

7. The inlet valve filter structure according to claim 6, characterized in that: The filter body (2) has a disassembly post (23) protruding outward along the axial direction at the end facing the installation port. The disassembly post (23) protrudes out of the installation port (61). The top wall of the end cover (3) extends axially into the installation channel (6) to form a limiting groove (31). After the end cover (3) is screwed and fixed in the installation port (61), the disassembly post (23) is inserted into the limiting groove (31), and at the same time, the protrusion (22) is pressed against the annular flange (64) along the axial direction to limit the filter body (2) axially.

8. The inlet valve filter structure according to claim 6, characterized in that: The filter body (2) has several ribs (24) arranged in a ring around the perimeter, so that when the filter body (2) is installed in the installation channel (6), the ribs (24) abut against the inner side wall of the installation channel (6).

9. The inlet valve filter structure according to claim 1, characterized in that: It also includes a fastener (9), which is used to connect and fix the water inlet pipe (7) to the tee connector (1), or to connect and fix the water inlet valve (8) to the tee connector (1).

10. The inlet valve filter structure according to claim 1, characterized in that: An adapter (10) is formed on the end cap (3). The adapter (10) is used to connect the posterior shower nozzle. After the water flows through the side wall of the filter body (2) and passes through the connector (10), it is sprayed out from the posterior shower nozzle.

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