Water treatment filter with improved filter cartridge structure

Abstract

The utility model discloses a water treatment filter of improved filter core structure, including a barrel -shaped casing, and the casing opening sets up to the upwards, and the upper end of casing is set gradually from top to bottom with installation lid, connecting joint and filter core body, and the inner wall between filter core body and casing is provided with sealing washer, and the downside of filter core body is provided with a central tube, and the inner wall of central tube is provided with internal thread, still including a tubular support seat, and the upper portion of support seat is provided with first interface, and the lower portion of support seat is provided with second interface, and the outer wall of the upper portion of support seat is provided with external thread, and the upper portion of support seat is inserted into central tube, and the middle part of the bottom of shell cavity is provided with positioning column, and second interface is sleeved in the outer periphery of positioning column, the utility model has the advantages of providing the installation mode of multiple barrels, providing the connecting mode of multiple water inlet and water outlet pipelines, keeping the fastener connected between end cover and barrel, optimizing the operation mode of barrel disassembly and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of physics, and in particular to filters, specifically a water treatment filter with an improved filter element structure. Background Technology

[0002] In the water treatment field, pre-filters are key pretreatment devices installed at the upstream end of the water supply network. They are used to filter out large particulate impurities such as sediment, rust, and algae from the water to protect downstream water purification equipment (such as water softeners and pure water machines) and water appliances. As users' requirements for water quality increase, they desire cleaner water at the pretreatment stage. Therefore, a technical solution has emerged that integrates high-precision hollow fiber ultrafiltration (UF) membrane cartridges into pre-filters. In existing technologies, both the housing and the filter cartridge are of fixed dimensions. The filter cartridge cannot be adapted to housings of different heights, resulting in poor compatibility between the cartridge and the housing. Furthermore, due to the sealing ring between the cartridge and the housing, disassembling the cartridge requires overcoming significant resistance, which is very inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a water treatment filter with an improved filter element structure. This improved filter element structure aims to solve the technical problem in the prior art where the filter element needs to overcome significant resistance during installation and removal.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A water treatment filter with an improved filter element structure includes a barrel-shaped shell with its opening facing upwards. From top to bottom, the shell comprises a mounting cover, a connecting joint, and a filter element body. A sealing ring is provided between the filter element body and the inner wall of the shell. A central tube is located on the lower side of the filter element body, and the inner wall of the central tube has internal threads. A tubular support base is also located below the filter element body. The upper part of the support base has a first interface, and the lower part of the support base has a second interface. The outer wall of the upper part of the support base has external threads. The upper part of the support base extends into the central tube, and the upper part of the support base and the lower part of the central tube form a helical pair. A positioning post is located at the center of the bottom of the inner cavity of the shell. The second interface is sleeved on the outer circumference of the positioning post. The support base and the positioning post form a rotating pair. The central tube, the support base, and the positioning post are coaxially arranged.

[0006] Furthermore, the first interface and the second interface are slots for adapting to hex wrenches or other special wrenches.

[0007] Furthermore, the lower side of the filter element is provided with a plurality of hollow membrane filaments, the membrane filaments being U-shaped, and any end of any membrane filament being connected to the upper side of the filter element.

[0008] Furthermore, the central tube and the membrane filament are provided with a plurality of micropores.

[0009] Furthermore, the surface of the mounting cover is provided with at least one water inlet port and at least one water outlet port. The mounting cover is provided with a water inlet chamber and a water outlet chamber, which are isolated from each other. The water inlet chamber is connected to the water inlet port, and the water outlet chamber is connected to the water outlet port. The outer periphery of the filter element is sealed to the inner wall of the housing 1 by a sealing ring. A radial partition is provided in the middle of the filter element. A connecting joint is provided on the upper side of the partition. The inside of the connecting joint is connected to the water inlet chamber. The space between the inner wall of the filter element and the outer wall of the connecting joint is connected to the water outlet chamber. The lower end of the connecting joint is connected to the inner cavity of the central tube. Micropores are provided on the side wall of the central tube. The inner cavity of the central tube and the inner cavity of the housing are connected through the micropores.

[0010] Working principle:

[0011] In existing technology, the central tube at the bottom of the filter element is directly connected to the positioning post at the bottom of the housing. This invention adds a support base between the central tube and the positioning post. By rotating an Allen wrench at the bottom of the support base (with the wrench inserted into the second interface), the height of the filter element and support base assembly can be adjusted to accommodate different housing sizes. By rotating an Allen wrench at the top of the support base (with the wrench inserted into the first interface), the filter element is driven to rise axially. Once the filter element is removed from the housing, it can be disassembled, greatly reducing the difficulty of filter element installation and disassembly.

[0012] Compared with the prior art, the advantages of this utility model are: the filter element height is flexibly adjustable through the spiral pair structure, which can be adapted to filter housings of different specifications; the design of the rotating pair and special tool interface enables convenient disassembly of the filter element in the housing, which greatly simplifies the maintenance process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the explosion effect of a water treatment filter with an improved filter element structure according to this utility model.

[0014] Figure 2 This is a cross-sectional schematic diagram of a water treatment filter with an improved filter element structure according to this utility model.

[0015] Figure 3 This is a schematic diagram illustrating the height adjustment of a water treatment filter with an improved filter element structure according to this utility model.

[0016] Figure 4 This is a schematic diagram illustrating the disassembly and assembly of a water treatment filter with an improved filter element structure according to this utility model.

[0017] Figure 5 This is a schematic diagram illustrating the disassembly and assembly of a water treatment filter with an improved filter element structure according to this utility model. Detailed Implementation

[0018] Example 1

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model provides a technical solution:

[0020] A water treatment filter with an improved filter element structure includes a barrel-shaped housing 1 with its opening facing upwards. From top to bottom, the housing 1 is provided with a mounting cover 2, a connecting joint 3, and a filter element body 4. A sealing ring is provided between the filter element body 4 and the inner wall of the housing 1. A central tube 5 is provided on the lower side of the filter element body 4, and the inner wall of the central tube 5 is provided with internal threads. A tubular support 6 is also provided below the filter element body 4. A first interface 7 is provided on the upper part of the support 6, and a second interface 8 is provided on the lower part of the support 6. The outer wall of the upper part of the support 6 is provided with external threads. The upper part of the support 6 extends into the central tube 5, and the upper part of the support 6 and the lower part of the central tube 5 form a helical pair. A positioning post 9 is provided in the middle of the bottom of the inner cavity of the housing 1. The second interface 8 is sleeved on the outer periphery of the positioning post 9. The support 6 and the positioning post 9 form a rotating pair. The central tube 5, the support 6, and the positioning post 9 are coaxially arranged.

[0021] Furthermore, the first interface 7 and the second interface 8 are slots for adapting to the internal hex wrench 20 or other special wrenches.

[0022] Furthermore, a plurality of hollow membrane filaments 10 are provided on the lower side of the filter element body 4. The membrane filaments 10 are arranged in a U-shape, and any end of any membrane filament 10 is connected to the upper side of the filter element body 4.

[0023] Furthermore, the central tube 5 and the membrane filament 10 are provided with a plurality of micropores.

[0024] Furthermore, the surface of the mounting cover 2 is provided with at least one water inlet port 201 and at least one water outlet port 202. The mounting cover 2 is provided with a water inlet chamber 203 and a water outlet chamber 204. The water inlet chamber 203 and the water outlet chamber 204 are isolated from each other. The water inlet chamber 203 is connected to the water inlet port 201, and the water outlet chamber 204 is connected to the water outlet port 202.

[0025] Work process:

[0026] like Figure 2 As shown, the surface of the mounting cover 2 is provided with at least one water inlet port 201 and at least one water outlet port 202. Multiple water inlet ports 201 and multiple water outlet ports 202 can be combined and used according to the requirements of water inlet and outlet directions. The mounting cover 2 is provided with a water inlet chamber 203 and a water outlet chamber 204, which are isolated from each other. The water inlet chamber 203 is connected to the water inlet port 201, and the water outlet chamber 204 is connected to the water outlet port 202.

[0027] The filter element 4 is tubular. The outer periphery of the filter element 4 is sealed to the inner wall of the housing 1 by a sealing ring. A radial partition is provided in the middle of the filter element 4. The connecting joint 3 is located on the upper side of the partition. The connecting joint 3 divides the upper part of the filter element 4 into an inlet water cavity (i.e., the inner cavity of the connecting joint 3) and an outlet water cavity (the space between the inner wall of the filter element 4 and the outer wall of the connecting joint 3). The outlet pre-cavity 204 is connected to the outlet water cavity. The central tube 5 is coaxially arranged with the connecting joint 3 on the lower side of the partition. The upper end of the connecting joint 3 is connected to the inlet pre-cavity 203 (i.e., the inlet pre-cavity 203 is connected to the inlet water cavity). The lower end of the connecting joint 3 is connected to the inner cavity of the central tube 5. Micropores are provided on the side wall of the central tube 5. The inner cavity of the central tube 5 and the inner cavity of the housing 1 are connected through the micropores.

[0028] The membrane filament 10 is arranged in a U-shape on the lower side of the partition, and both ends of the membrane filament 10 are connected to the upper side of the partition. The membrane filament 10 is a well-known technical solution in the prior art, and it includes micropores. The membrane filament 10 and the inner cavity of the shell 1 are connected through the micropores.

[0029] Both the central tube 5 and the membrane fiber 10 are disposed in the inner cavity of the housing 1;

[0030] Raw water enters the pre-inlet chamber 203 from the inlet port 201, then enters the inlet middle chamber (i.e., the inner chamber of the connecting connector 3) from the inlet middle chamber, then passes through the partition and enters the inner chamber of the central tube 5, then enters the inner chamber of the housing 1 through the micropores from the inner chamber of the central tube 5 (at this time, the raw water completes the initial filtration), then enters the membrane fiber 10 through the micropores from the inner chamber of the housing 1 (at this time, the water flow completes the fine filtration), then enters the outlet middle chamber from the membrane fiber 10 through the partition, then enters the outlet pre-outlet chamber 203 from the outlet middle chamber, and then flows out of the water treatment filter through the outlet port 202 from the outlet pre-outlet chamber 203.

[0031] like Figure 3 As shown, insert a tool such as an Allen wrench 20 into the second interface at the bottom of the support base 6 and rotate it to adjust the total height of the filter element. After adjustment, put the filter element (filter element body 4 and central tube 5) together with the support base 6 into the housing for assembly. Different total heights of the filter element can be adapted to different housings.

[0032] like Figure 4 , Figure 5 As shown, during disassembly, first remove the mounting cover 2 and the connecting joint 3. Insert the long handle end of a tool such as an Allen wrench 20 through the central tube 5 into the first interface on the upper part of the support seat 6 from the upper side of the filter element body 4 and loosen it. The support seat 5 can no longer move downward at the bottom of the inner cavity of the housing 1. After the support seat 6 is rotated, the entire filter element mechanism (filter element body 4 and central tube 5) can be lifted upward and removed.

Claims

1. An improved water treatment filter with a filter core structure, comprising a barrel-shaped shell (1), the shell (1) being arranged with an upward opening, the shell (1) being sequentially provided from top to bottom with a mounting cover (2), a connecting joint (3) and a filter core body (4), characterized in that: A sealing ring is provided between the inner wall of the filter element (4) and the inner wall of the housing (1). A central tube (5) is provided on the lower side of the filter element (4). The inner wall of the central tube (5) is provided with internal threads. A tubular support seat (6) is also provided below the filter element (4). A first interface (7) is provided on the upper part of the support seat (6). A second interface (8) is provided on the lower part of the support seat (6). The outer wall of the upper part of the support seat (6) is provided with external threads. The upper part of the support seat (6) extends into the central tube (5). The upper part of the support seat (6) and the lower part of the central tube (5) form a helical pair. A positioning post (9) is provided in the middle of the bottom of the inner cavity of the housing (1). The second interface (8) is sleeved on the outer circumference of the positioning post (9). The support seat (6) and the positioning post (9) form a rotating pair. The central tube (5), the support seat (6) and the positioning post (9) are coaxially arranged.

2. The water treatment filter with improved filter element structure according to claim 1, characterized in that: The first interface (7) and the second interface (8) are slots for adapting to hex wrenches.

3. A water treatment filter with an improved filter element structure according to claim 1, characterized in that: The filter element body (4) has a plurality of hollow membrane fibers (10) on its lower side. The membrane fibers (10) are U-shaped, and any end of any membrane fiber (10) is connected to the upper side of the filter element body (4).

4. A water treatment filter with an improved filter element structure according to claim 3, characterized in that: The central tube (5) and the membrane filament (10) are provided with a plurality of micropores.

5. A water treatment filter with an improved filter element structure according to claim 1, characterized in that: The surface of the mounting cover (2) is provided with at least one water inlet port (201) and at least one water outlet port (202). The mounting cover (2) is provided with a water inlet chamber (203) and a water outlet chamber (204). The water inlet chamber (203) and the water outlet chamber (204) are isolated from each other. The water inlet chamber (203) is connected to the water inlet port (201), and the water outlet chamber (204) is connected to the water outlet port (202). The outer periphery of the filter element body (4) is connected to the shell (1). The inner wall of the filter element (4) is sealed by a sealing ring. A radial partition is provided in the middle of the filter element (4). The connecting joint (3) is located on the upper side of the partition. The interior of the connecting joint (3) is connected to the inlet chamber (203). The space between the inner wall of the filter element (4) and the outer wall of the connecting joint (3) is connected to the outlet chamber (204). The lower end of the connecting joint (3) is connected to the inner cavity of the central tube (5). Micropores are provided on the side wall of the central tube (5). The inner cavity of the central tube (5) and the inner cavity of the shell (1) are connected through the micropores.

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