A filter cartridge assembly based on a spin-on process

Abstract

The utility model discloses a filter element assembly connected into an organic whole based on spin melt process, which comprises a shell, a filter material assembly arranged in the shell and a joint formed into an organic whole with the shell; the filter material assembly comprises a filter core, an end cover located between the filter core and the joint and formed into an organic whole with the filter core; a plurality of sealing rings are arranged between the filter element assembly and the joint; a connecting column extending towards the end cover is arranged on the joint, and a stress assembly matched with the connecting column is arranged on the end cover; the synchronous rotation of the end cover and the joint is realized by the cooperation of the connecting column and the stress assembly. The filter element assembly is designed by the cooperation of the connecting column and the stress assembly, so that the filter material assembly and the joint are kept stable before spin melting, the synchronous rotation of the filter material assembly and the joint is realized during the spin melting process, the first sealing ring and the second sealing ring are prevented from rotating by friction, and the filter core is prevented from being turned over or damaged, thereby improving the sealing performance of the filter core as a whole.

Description

Technical Field

[0001] This utility model belongs to the field of water purifier filter elements, and in particular relates to a filter element assembly that is connected into one piece based on a spin-melting process. Background Technology

[0002] The filter cartridge assembly of a water purifier includes a connector, filter media, end caps, and a housing. The filter media and end caps are housed within the housing, and the connector is integrated with the housing. The connector contains water channels for connecting water, facilitating water outlet and wastewater discharge. The filter media filters the water, and the housing protects the internal filter media and provides a waterproof seal. End caps cover the ends of the filter media, creating a tight seal between the filter media and the connector. The connector also contains water channels that connect to the outlet of the end caps for purified water discharge. A sealing ring ensures a tight seal between the connector and the outlet of the end caps.

[0003] The existing method for connecting the filter element connector to the housing is spin-welding assembly. This involves generating heat through rotational friction to melt the contact surfaces, followed by pressure holding and cooling to achieve a high-strength watertight / airtight connection. However, in actual production, this assembly method can lead to asynchronous rotation of the filter media end caps, filter element, and connector during the connector's rotation. In this case, the high-speed rotating connector rubs against the sealing ring, causing the sealing ring to rotate and potentially damage it, resulting in a low product yield.

[0004] Based on this, the structure of the filter element assembly has been improved to effectively prevent the sealing ring from rotating due to friction and causing damage during spin welding assembly. Utility Model Content

[0005] Purpose of the utility model: The purpose of this utility model is to provide a filter element assembly that is connected as one piece based on the spin welding process, so as to solve the problem of wear of the sealing ring during the spin welding assembly process of existing filter elements.

[0006] Technical solution: This utility model is a filter element assembly formed by spin welding. The filter element assembly includes a shell, a filter media assembly disposed inside the shell, and a connector integrally formed with the shell. The filter media assembly includes a filter element and an end cap located between the filter element and the connector, which is integrally formed with the filter element. Several sealing rings are provided between the filter element assembly and the connector.

[0007] The connector is provided with a connecting post extending toward the end cap, and the end cap is provided with a force-bearing component that cooperates with the connecting post. With the cooperation of the connecting post and the force-bearing component, the end cap and the connector can rotate synchronously.

[0008] Furthermore, the force-bearing components used in this filter element assembly are force-bearing plates located before and after the rotation direction of the connecting column.

[0009] Furthermore, the force-bearing component used in this filter element assembly is a connecting cylinder that mates with the connecting column.

[0010] Furthermore, the end cap of the filter element assembly is also provided with a connecting plate that overlaps with the connector, and the connector is provided with a connecting platform that mates with the overlapping end of the connecting plate.

[0011] Furthermore, the connecting cylinder used in the filter element assembly has connecting ends that overlap with the connector on both sides of the connecting column along the rotation direction, and the connector has a connecting platform that mates with the connecting ends of the connecting cylinder.

[0012] Furthermore, the top of the connection end used in this filter assembly is set as an inclined surface.

[0013] Furthermore, the connector of the filter element assembly is provided with a water inlet channel, a clean water channel, and a wastewater channel; a water inlet channel is formed between the filter element and the outer shell, and is connected to the water inlet channel on the connector; the central pipe of the filter element forms a water inlet channel, and is connected to the clean water channel of the connector; a wastewater channel is formed between the filter element and the end cap, and is connected to the wastewater channel of the connector.

[0014] Furthermore, the filter element assembly has several sealing rings, namely a first sealing ring between the filter element's central pipe and the connector, and a second sealing ring between the end cap and the connector located at the wastewater channel connection.

[0015] Furthermore, the connector of the filter element assembly is provided with an inlet end, a clean water end, and a wastewater end corresponding to the water inlet channel, the clean water channel, and the wastewater channel, respectively.

[0016] Beneficial effects: Compared with the prior art, the beneficial effects of this utility model are as follows: The filter element assembly, through the cooperative design of the connecting column and the force-bearing component, makes the filter material assembly and the joint stable before spin welding, and realizes the synchronous rotation of the filter material assembly and the joint during the spin welding process, avoiding frictional rotation of the first sealing ring and the second sealing ring, which could cause folding or damage, thereby improving the overall sealing performance of the filter element. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the end cap structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the water flow direction in the filter element of the water purifier of this utility model. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0022] This utility model discloses a filter element assembly for water purifiers, adapted for assembly using a spin-welding process. This allows for synchronous rotation of the connector, end cap, and filter element, preventing frictional damage to the sealing rings connecting these three components. Specifically, as shown... Figures 1 to 3 As shown, the filter element assembly includes a connector 2, a filter media assembly, and a housing 1. The filter media assembly includes a filter element 3 and an end cap 4 integrally formed with the filter element 3. The end cap 4 is located between the connector 2 and the filter element 3. The filter element material is located inside the housing 1, and the connector 2 and the housing 1 are integrally formed by a spin-welding process.

[0023] The connector 1 has an inlet end 11, a purified water end 12, and a wastewater end 13. The inlet end 11 is connected to an external water source. The connector 1 has an inlet channel, a purified water channel, and a wastewater channel, which are respectively connected to the inlet end 11, the purified water end 12, and the wastewater end 13. The filter element 3 has a hollow purified water channel formed by an integral molding method, and the purified water channel is located on the central axis of the filter element 3. A water pipe is fixedly installed in the purified water channel, and the water pipe has several holes to allow purified water to enter. The diameter of the filter element 3 is smaller than the diameter of the outer shell 1, and a fixed gap is set between the filter element 3 and the outer shell 1 to form the inlet channel. The end cap 4 covers the end of the filter element 3. The end cap 4 is sealed to the side wall of the filter element 3, but the end cap 4 is not completely fitted to the end face of the filter element 3, leaving a gap to form a wastewater channel, so that the wastewater filtered by the filter element 3 can enter the end cap 4. A circular wastewater outlet is provided on the central axis of end cap 4, with a clean water channel located in the middle of the wastewater outlet. The clean water end of connector 2 covers the clean water channel. A first sealing ring 9 is provided between the central pipe of filter element 3 and connector 2. A second sealing ring 10 is located at the connection between end cap 4 and connector 2 in the wastewater channel. Inlet end 11, clean water end 12, and wastewater end 13 correspond to the inlet channel, clean water channel, and wastewater channel, respectively.

[0024] In this utility model, the filter element 3 and the outer shell 1 form a water inlet channel, which is connected to the water inlet channel on the connector 2. The central pipe of the filter element 3 forms a clean water channel, which is connected to the clean water channel of the connector 2. The filter element 3 and the end cap 4 form a wastewater channel, which is connected to the wastewater channel of the connector 2. The water flow direction is as follows: Figure 4 As shown in the diagram. The red line indicates the direction of the raw water flow. The raw water enters through the inlet 11, is purified by the filter element 3 through the inlet channel, and then flows out through the purified water channel from the purified water end 12, as shown by the blue line. The concentrated water, i.e., wastewater, flows out through the wastewater channel from the wastewater end 13, as shown by the black line.

[0025] The core of this utility model lies in the arrangement of the connecting post 5 on the connector 2 and the arrangement of the force-bearing component on the end cap 4 that cooperates with the connecting post 5. Specifically, as shown... Figure 2As shown. Two force-bearing components are symmetrically arranged on the end cap 4, which can be elastic connecting cylinders 6. Connecting posts 5 that engage with connecting cylinders 6 are fixedly installed on the connector 1. When the connecting posts 5 rotate, they squeeze the sides of the connecting cylinder 6 along the rotation direction, causing the end cap 4 and the filter element 3 integrated with it to rotate synchronously. Connecting ends 7 that overlap with the connector 2 are provided on both sides of the connecting cylinder 6 along the rotation direction of the connecting posts 5. The connecting ends 7 can be in the form of claws. The connector 2 is provided with connecting platforms 8 that cooperate with the connecting ends 7 of the connecting cylinder 6, that is, the connecting ends 7 and the connecting platforms 8 overlap. The connecting ends 7 can be set as bevels to facilitate their passage through the connecting platforms from the bottom. Setting the connecting cylinder 6 as elastic is to facilitate the elastic deformation space when it passes through the connecting platforms 8 from the bottom based on the setting of the connecting ends 7, so as to avoid jamming.

[0026] Alternatively, the force-bearing component provided in this invention can simply be a force-bearing plate located before or after the rotation direction of the connecting column 5. During the rotation of the connecting column 5, it pushes the connecting plate, achieving synchronous rotation. Furthermore, a connecting plate that overlaps with the connector 2 can also be provided on the end cap 4. The end of this connecting plate can also be in the form of a claw and be set as an inclined surface. The connector 2 is provided with a connecting platform corresponding to the overlapping end of the connecting plate. The cooperation between the connecting platform and the connecting end serves two purposes: firstly, it forms a connection between the end cap 4 and the connector 2; secondly, it promotes the synchronous rotation of the end cap 4 and the filter element 3 during the rotation of the connector 2.

[0027] The assembly steps of the filter element assembly are as follows: the filter element 3 and the end cap 4 are integrally formed and fixedly connected to form a filter material assembly. The filter material assembly is placed inside the outer shell 1. The outer shell 1 is placed on the spin welding equipment. Similarly, the connector 2 is placed. The outer shell 1 is placed on the connector 2. At this time, the connecting post 5 is located inside the force-bearing component, and the connecting end 7 and the connecting platform 8 are also connected. All channels are connected accordingly.

[0028] After aligning the connector 2 and the outer shell 1, spin welding is performed to fix them. During the spin welding process, the connector 2 rotates through the connecting column 5 and the force-bearing component. The connecting column 5 synchronously applies rotational force to the force-bearing component, which smoothly causes the end cap 4, filter element 3 and connector 2 to rotate synchronously until the connector 2 and the end of the outer shell 1 are completely fused and fixed.

Claims

1. A filter element assembly integrally joined by a spin-welding process, characterized in that, The filter element assembly includes a housing (1), a filter media assembly disposed within the housing (1), and a connector (2) integrally formed with the housing (1); the filter media assembly includes a filter element (3), and an end cap (4) located between the filter element (3) and the connector (2) and integrally formed with the filter element (3); a plurality of sealing rings are provided between the filter element assembly and the connector (2); The connector (2) is provided with a connecting post (5) extending toward the end cap (4), and the end cap (4) is provided with a force-bearing component that cooperates with the connecting post (5). With the cooperation of the connecting post (5) and the force-bearing component, the end cap (4) and the connector (2) can rotate synchronously.

2. The filter element assembly formed by spin welding according to claim 1, characterized in that, The force-bearing component is a force-bearing plate located before and after the rotation direction of the connecting column (5).

3. The filter element assembly formed by spin welding according to claim 1, characterized in that, The force-bearing component is a connecting cylinder (6) that cooperates with the connecting column (5).

4. The filter element assembly formed by spin welding according to claim 2, characterized in that, The end cap (4) of the filter element assembly is also provided with a connecting plate that overlaps with the connector (2), and the connector (2) is provided with a connecting platform (8) that cooperates with the overlapping end of the connecting plate.

5. The filter element assembly formed by spin welding according to claim 3, characterized in that, The connecting cylinder (6) extends on both sides along the rotation direction of the connecting column (5) and is provided with connecting ends (7) that overlap with the joint. The joint (2) is provided with a connecting platform (8) that cooperates with the connecting ends (7) of the connecting cylinder (6).

6. The filter element assembly formed by spin welding according to claim 5, characterized in that, The top of the connecting end (7) is set as an inclined surface.

7. The filter element assembly formed by spin welding according to claim 1, characterized in that, The connector is provided with a water inlet channel, a clean water channel, and a wastewater channel; a water inlet channel is formed between the filter element and the outer shell and is connected to the water inlet channel on the connector; a clean water channel is formed in the central pipe of the filter element and is connected to the clean water channel of the connector; a wastewater channel is formed between the filter element and the end cap and is connected to the wastewater channel of the connector.

8. The filter element assembly formed by spin welding according to claim 1, characterized in that, The sealing rings are the first sealing ring (9) between the central pipe of the filter element (3) and the connector (2), and the second sealing ring (10) between the end cap (4) and the connector (2) at the connection of the wastewater channel.

9. The filter element assembly formed by spin welding according to claim 7, characterized in that, The connector is respectively provided with an inlet end, a clean water end, and a wastewater end corresponding to the water inlet channel, the clean water channel, and the wastewater channel.

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