High-strength durable filter and production mold

Abstract

The high-strength durable filter comprises a shell, membrane filaments and a sealing layer, the shell is of a barrel-shaped structure with two open ends, the membrane filaments are fixed in the shell in a bunched mode and fixed through the sealing layer, a plurality of fixing grooves are formed in the outer surface of the shell, and the sealing layer is arranged in the fixing grooves. At least one circle of concave ring groove is formed in the sealing layer, and the concave ring groove is formed in the sealing layer; according to the filter disclosed by the utility model, a complex fixing structure in the prior art is simplified based on the consideration of strength and structure, the membrane filaments and the shell are directly fixed through AB epoxy resin glue, and the concave ring groove is additionally formed in the inner side of the shell, so that after the shell is subjected to glue dipping solidification, and after the shell is used at high pressure and high flow or for a long time, the shell cannot be aged due to glue aging; and the epoxy resin sealing layer with the membrane wire is separated or loosened to cause poor sealing, so that the service life of the product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a high-strength and durable filter and its production mold. Background Technology

[0002] Due to environmental pollution and other factors, filters are becoming increasingly important. Filters are categorized by application, including gas filters and liquid filters, and by properties, including vacuum filters and pressure filters. Furthermore, with continuous technological advancements, filter size and filtration efficiency are constantly being improved. Hollow fiber membrane filters, in particular, offer advantages such as high precision, high membrane flux, and small size. These filters are primarily composed of numerous hollow fiber membrane filaments. These filaments are fibrous materials with a hollow structure and specific microporous structures in their walls. The outer diameter of the membrane filaments is typically between several hundred micrometers and several millimeters, while the inner diameter is usually in the range of tens to hundreds of micrometers. Numerous membrane filaments are encapsulated in a housing, which usually has inlet, outlet, and drain ports. However, while existing hollow fiber membrane filters are small in overall size, their manufacturing remains complex. Utility Model Content

[0003] In view of the prior art, the purpose of this utility model is to provide a filter component structure that is simple in structure and has high strength and durability.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-strength and durable filter, comprising a shell, membrane fibers and a sealing layer. The shell is a cylindrical structure with openings at both ends. The membrane fibers are bundled and fixed inside the shell and fixed by the sealing layer. The outer surface of the shell is provided with several fixing grooves, and at least one concave annular groove is provided inside the groove. The concave annular groove is located at the sealing layer.

[0005] As a further feature of the above solution, the sealing layer is made of epoxy resin adhesive, which is injected from the bottom opening of the outer shell, and the membrane fibers are fixed after the adhesive solidifies.

[0006] As a further feature of the above scheme, the membrane filaments extend outward in a U-shape from the center in a uniform circumferential direction and form a multi-layered bundle structure within the outer shell.

[0007] As a further provision of the above scheme, the middle part of the U-shaped membrane filament and the end of the diffuser are parallel to form a convergence part, and the end of the convergence part extends through the sealing layer.

[0008] As a further feature of the above scheme, the concave annular groove is provided with a vertical stepped annular surface axially upward relative to the outer shell.

[0009] As a further feature of the above solution, a guide surface is provided on the outer side wall of the fixing groove, and the side of the groove wall facing the fixing groove is set vertically.

[0010] A production mold for the aforementioned high-strength and durable filter includes a housing bracket, a glue injection mold, and a glue injection tube. The housing bracket is provided with several U-shaped grooves for engaging with the fixing groove of the housing for horizontal suspension. The glue injection mold is fitted onto the end of the housing to seal the lower opening. The glue injection tube is connected to the bottom glue injection hole of the glue injection mold. The glue injection mold is made of silicone material.

[0011] It is worth noting that, as described above, the mold of this embodiment is adapted to the simple structural design of the filter. Considering the characteristics of AB epoxy resin, a silicone mold is used to cooperate with the injection mold and injection tube. Furthermore, the size of the injection mold fitted on the end of the outer shell is set to be smaller than the size of the outer shell. The elastic expansion of the silicone fits onto the outer shell, which not only facilitates the fitting and production, but also allows the injection mold to be easily removed after the resin solidifies. In addition, the elastic silicone fit can also provide sealing force to avoid the problem of glue leakage.

[0012] Compared to the complex structure of the filter membrane cartridge in the prior art, the filter component of this utility model simplifies the existing structure based on strength and structural considerations. It directly fixes the membrane fibers and the outer shell using AB epoxy resin glue through a silicone mold, and adds a concave annular groove on the inner side of the outer shell. After the shell is impregnated and solidified, the epoxy resin sealing layer will not detach or loosen due to glue aging after high pressure, high flow or long-term use, thus preventing poor sealing. This not only facilitates production and processing, but also extends the product's service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the filter structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the filter of this utility model.

[0015] Figure 3 This is an enlarged view of the concave annular groove on the outer shell of the filter of this utility model.

[0016] Figure 4 This is a schematic diagram of the production mold structure for the filter of this utility model.

[0017] Reference numerals: 1. Outer shell; 11. Fixing groove; 12. Recessed annular groove; 13. Vertical stepped annular surface; 14. Vertical surface; 15. Groove wall; 16. Guide surface; 2. Membrane filament; 21. Bundling section; 3. Sealing layer; 7. Shell bracket; 71. U-shaped groove; 8. Injection mold; 81. Injection hole; 9. Injection tube. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0019] like Figure 1-3 The high-strength and durable filter shown includes a housing 1, membrane fibers 2 and a sealing layer 3. The housing 1 has a cylindrical structure with open ends. The membrane fibers 2 are bundled and fixed inside the housing 1 and fixed by the sealing layer 3. The outer surface of the housing 1 is provided with a plurality of fixing grooves 11, and at least one concave annular groove 12 is provided inside the groove. The concave annular groove 12 is located at the sealing layer 3.

[0020] As a further provision of the above scheme, the sealing layer 3 is made of epoxy resin adhesive, which is injected from the bottom opening of the outer shell 1, and the membrane filament 2 is fixed after the adhesive solidifies.

[0021] As a further provision of the above scheme, the membrane filament 2 extends outward in a U-shape from the center in a uniform circumferential direction and forms a multi-layered bundle structure inside the outer shell 1. The middle part of the U-shape and the diffused end of the membrane filament 2 form a convergence part 21 in parallel. The end of the convergence part 21 extends through the sealing layer 3.

[0022] As a further feature of the above scheme, the concave annular groove 12 is provided with a vertical stepped annular surface 13 axially upward relative to the outer shell 1.

[0023] As a further feature of the above solution, a guide surface 16 is provided on the outer side wall 15 of the fixing groove 11, and the side of the groove wall 15 facing the fixing groove 11 is arranged as a vertical surface 14.

[0024] like Figure 1 The filter main body structure shown in this embodiment is a cylindrical outer shell 1. Two sets of fixing grooves 11 are provided on the outer surface of the outer shell 1 for connection with the water inlet and water outlet components. The inner surface of the outer shell 1 in this embodiment is as follows... Figure 2 Membrane filaments 2 are arranged in a bundle-like structure. The membrane filaments 2 are prefabricated outside the outer shell 1 and placed inside the outer shell 1 as follows: Figure 2 The filter shown extends outward in a U-shape from the outlet end of the outer casing 1 near the other end of the outer casing 1, then extends parallel to the outlet end in the opposite direction, finally converging at the outlet end with a converging portion 21. When manufacturing the filter of this embodiment, refer to... Figure 4The production mold for the filter in this embodiment includes a housing bracket 7, a glue injection mold 8, and a glue injection tube 9. The housing bracket 7 is provided with several U-shaped grooves 71 for being inserted into the fixing groove 11 of the housing 1 for horizontal suspension. The glue injection mold 8 is used to fit over the end of the housing 1 to seal the lower opening. The glue injection tube 9 is connected to the bottom glue injection hole 81 of the glue injection mold 8. The glue injection mold 8 is made of silicone material.

[0025] In preparing the filter of this embodiment, the membrane fibers 2 are prefabricated and bundled. Then, the fixing groove 11 on the side of the outer shell 1 without the concave annular groove 12 is inserted into the U-shaped groove 71 of the shell bracket 7. The outer shell 1 is then suspended horizontally. The bundled membrane fibers 2 are then placed into the outer shell 1 and temporarily fixed. The injection mold 8 can be fitted onto the outer shell 1 as needed during the intervals between the above actions. After the production mold is stabilized, epoxy resin glue is injected into the outer shell 1 and the injection mold 8 through the injection tube 9. The glue will flow continuously upward from the bottom and into the concave annular groove 12. After solidification, the staff can remove the filter. After disassembling the injection mold 8, the water outlet side of the membrane fibers 2 is processed and trimmed. The temporary fixing auxiliary parts are removed to expose the water outlet hole in the middle of the hollow fiber membrane fibers. Then, some water inlet and water outlet components are fitted on.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A high-strength and durable filter, characterized in that: The device includes an outer shell (1), membrane fibers (2) and a sealing layer (3). The outer shell (1) is a cylindrical structure with open ends. The membrane fibers (2) are bundled and fixed inside the outer shell (1) and fixed by the sealing layer (3). The outer surface of the outer shell (1) is provided with several fixing grooves (11), and at least one concave annular groove (12) is provided inside. The concave annular groove (12) is located at the sealing layer (3).

2. The high-strength and durable filter according to claim 1, characterized in that: The sealing layer (3) is made of epoxy resin glue, which is injected from the bottom opening of the outer shell (1) and the membrane filaments (2) are fixed after the glue solidifies.

3. The high-strength and durable filter according to claim 1, characterized in that: The membrane filament (2) extends outward in a U-shape from the center in a uniform circumferential direction and forms a multi-layered bundle structure within the outer shell (1).

4. A high-strength and durable filter according to claim 3, characterized in that: The U-shaped middle part and the diffused end of the membrane filament (2) form a convergence part (21) which extends through the sealing layer (3) at the end.

5. A high-strength and durable filter according to claim 1, characterized in that: The concave annular groove (12) is provided with a vertical stepped annular surface (13) axially relative to the outer shell (1).

6. A high-strength and durable filter according to claim 1, characterized in that: A guide surface (16) is provided on the outer side wall (15) of the fixed groove (11), and the side of the groove wall (15) facing the fixed groove (11) is set as a vertical surface (14).

7. A production mold for the filter according to any one of claims 1-6, characterized in that: The device includes a housing bracket (7), an injection mold (8), and an injection tube (9). The housing bracket (7) is provided with several U-shaped grooves (71) for inserting into the fixing groove (11) of the outer shell (1) for horizontal suspension. The injection mold (8) is used to cover the lower opening at the end of the outer shell (1). The injection tube (9) is connected to the bottom injection hole (81) of the injection mold (8).

8. The production mold according to claim 7, characterized in that: The injection mold (8) is made of silicone material.

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