A filter with a replaceable interface
By designing a filter with replaceable interfaces, using polyurethane materials and adjustment components, the problems of inconvenient installation and operation of existing filters and fixed interface sizes have been solved, achieving convenient installation and flexible adjustment, and improving practicality and wear resistance.
Patent Information
- Application Number
- CN202522627851.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-11
AI Technical Summary
Existing filters are difficult to install and operate conveniently, and their fixed interface size cannot adapt to filter structures of different sizes.
A replaceable filter screen with a replaceable filter interface made of polyurethane material is designed and equipped with an adjustment component, including a fixed base, a flexible guard, a pressure block and a threaded rod. The interface can be easily replaced by a handle and the interface size can be adjusted by the adjustment component to adapt to different filter structures.
It enables convenient installation and flexible adjustment of interface size, improves the practicality of the filter, enhances wear resistance and stain resistance, and maintains a soft touch.
Smart Images

Figure CN224937771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter screen interface technology, specifically a filter screen with a replaceable interface. Background Technology
[0002] Replaceable filter screens are precision processing tools designed specifically for powdered materials such as milk powder. With their unique design concept and excellent practical performance, they occupy an indispensable position in the production of milk powder and other powdered materials. Especially in the manufacturing of products such as milk powder that require extremely high purity, they can effectively block impurities, clumps and other potential foreign objects in the raw materials.
[0003] Existing filters, due to their relatively simple overall structure, are difficult to install conveniently. Furthermore, the interface size of current filters is fixed, making it impossible to adjust the size of the filter structure for installation when faced with different sized filter structures, resulting in poor practicality.
[0004] Therefore, a filter with a replaceable interface is needed to improve the above-mentioned problems. Utility Model Content
[0005] To address the problem that existing filters, due to their relatively simple overall structure, are difficult to install and operate conveniently, this invention provides a filter with a replaceable interface to solve the aforementioned problem.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A replaceable filter includes a replaceable filter interface and a filter bag. The filter bag is installed at one end of the replaceable filter interface. An adjustment component is installed on the inner wall of the replaceable filter interface. A handle is installed on the inner wall of the replaceable filter interface. The replaceable filter interface is made of polyurethane material. The filter bag has a frayed edge at the port.
[0008] The filter bag includes a high-temperature textile bottom layer, which is disposed on the outer wall of the replaceable filter interface. Antistatic metal wires are disposed on the outer wall of the high-temperature textile bottom layer, and an ultra-fine polyester fiber surface felt is disposed on one side of the antistatic metal wires and on the outer wall of the high-temperature textile bottom layer.
[0009] As a preferred embodiment of this utility model, the adjustment component includes a fixed base shell, which is pluggably installed at the port of the replaceable filter interface.
[0010] As a preferred embodiment of this utility model, the fixed bottom shell is located on one side of the filter bag, and the cross-section of the fixed bottom shell is a T-shaped structure.
[0011] As a preferred embodiment of this utility model, an elastic barrier is installed on the outer wall of the fixed base shell, and a pressing block is slidably connected to the inner wall of the fixed base shell.
[0012] As a preferred embodiment of this utility model, the lower pressure block has an annular structure, and a threaded rod is threadedly connected to the outer wall of the lower pressure block.
[0013] As a preferred embodiment of this utility model, one end of the threaded rod is rotatably connected to the outer wall of the fixed bottom shell, and an elastic support plate is installed on the outer wall of the lower pressure block.
[0014] As a preferred embodiment of this utility model, the elastic support plate is provided in multiple sets and is located on the outer wall of the lower pressure block, and one end of the elastic support plate is connected to the inner wall of the fixed bottom shell.
[0015] As a preferred embodiment of this utility model, the elastic support plate is located on one side of the threaded rod, the elastic support plate is located in the inner cavity of the fixed bottom shell, and the elastic support plate is located on one side of the elastic enclosure.
[0016] Compared with the prior art, this utility model enables easy replacement of the filter interface by setting a filter bag in the filter screen with a replaceable interface. The replaceable filter interface is equipped with a handle installed on the inner wall. The replaceable filter interface is made of polyurethane material. Simply lift the handle and apply force to make the handle move the replaceable filter interface for replacement. The suede surface has a similar texture to suede, which is wear-resistant, stain-resistant and temperature-adaptable. It enhances friction while maintaining a soft touch. This solves the problem that the existing filter screen is difficult to install and operate due to its relatively simple overall structure.
[0017] This invention enables adjustment of the interface size by incorporating an adjustment component within a replaceable filter screen. A threaded rod rotates on the outer wall of a fixed base, while one end of the threaded rod, connected by a thread, drives a downward-pressing block. This causes the pressing block to move downwards on the inner wall of the fixed base. Since one end of an elastic support plate is fixed to the inner wall of the fixed base, when pressed down by the pressing block, the elastic support plate elastically deforms outwards. This causes the elastic support plate to exert outward pressure on the elastic barrier, thus expanding the elastic barrier outwards. This allows the diameter of the elastic barrier to be adjusted to suit filter structures of different sizes. This solves the problem that current filter screens have fixed interface sizes, making it impossible to adjust the size of the filter structure for installation when faced with different sized filter structures, resulting in poor practicality. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a cross-sectional structural diagram of the filter bag of this utility model;
[0020] Figure 3 This utility model Figure 2 Front view diagram of the structure;
[0021] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A;
[0022] Figure 5 This is a schematic diagram of the filter bag structure of this utility model.
[0023] In the diagram: 1. Replaceable filter interface; 2. Filter bag; 21. High-temperature textile bottom layer; 22. Antistatic metal wire; 23. Ultra-fine polyester fiber surface felt; 3. Adjustment component; 301. Fixed bottom shell; 302. Elastic enclosure; 303. Pressure block; 304. Threaded rod; 305. Elastic support plate; 4. Handle; 5. Frayed edge. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Example: Please refer to Figure 1-5 The filter screen shown includes a replaceable filter interface 1 and a filter bag 2. The filter bag 2 is installed at one end of the replaceable filter interface 1. An adjustment component 3 is installed on the inner wall of the replaceable filter interface 1. A handle 4 is installed on the inner wall of the replaceable filter interface 1. The replaceable filter interface 1 is made of polyurethane material. The filter bag 2 has a frayed edge 5 at the port.
[0026] In this embodiment, specific references Figure 1 and Figure 5 The filter bag 2 includes a high-temperature textile bottom layer 21, which is disposed on the outer wall of the replaceable filter interface 1. An antistatic metal wire 22 is disposed on the outer wall of the high-temperature textile bottom layer 21, and an ultra-fine polyester fiber surface felt 23 is disposed on one side of the antistatic metal wire 22 and on the outer wall of the high-temperature textile bottom layer 21.
[0027] In this embodiment, specific references Figure 1 , Figure 2 , Figure 3 and Figure 4 The adjusting component 3 includes a fixed base 301, which is pluggable and detachable at the port of the replaceable filter interface 1. The fixed base 301 is located on one side of the filter bag 2. The cross-section of the fixed base 301 is T-shaped. An elastic barrier 302 is installed on the outer wall of the fixed base 301. A pressing block 303 is slidably connected to the inner wall of the fixed base 301. The pressing block 303 is an annular structure. A threaded rod 304 is threadedly connected to the outer wall of the pressing block 303. One end of the threaded rod 304 is rotatably connected to the outer wall of the fixed base 301. An elastic support plate 305 is installed on the outer wall of the pressing block 303.
[0028] Among them, multiple sets of elastic support plates 305 are provided and are respectively located on the outer wall of the lower pressure block 303, and one end of the elastic support plate 305 is connected to the inner wall of the fixed bottom shell 301.
[0029] Among them, the elastic support plate 305 is located on one side of the threaded rod 304, the elastic support plate 305 is located in the inner cavity of the fixed bottom shell 301, and the elastic support plate 305 is located on one side of the elastic enclosure 302.
[0030] Based on the above structural features and connection relationships, the high-temperature textile bottom layer 21 is set on the outer wall of the replaceable filter interface 1. The outer wall of the high-temperature textile bottom layer 21 is provided with antistatic metal wires 22. Under the action of the antistatic metal wires 22 and the ultra-fine polyester fiber surface felt 23 on one side of the high-temperature textile bottom layer 21, the filter bags 2 are fixed by melting point welding. The filter bags 2 have water spunlace and water vapor resistance, hard front and soft back, high air permeability, and can also intercept fine dust. The antistatic metal wires 22 have an antistatic material structure and can be used for spraying and aluminum materials. The ultra-fine polyester fiber surface felt 23 has a wet non-woven micro-fine polyester fiber preparation structure.
[0031] In this solution, the replaceable filter screen has a handle 4 installed on the inner wall of the replaceable filter interface 1. The replaceable filter interface 1 is made of polyurethane material. The filter bag 2 has a frayed edge 5 at the port. The replaceable filter interface 1 is made of polyurethane material. Simply lift the handle 4 and apply force to the replaceable filter interface 1. The frayed edge 5 has a texture similar to suede, which is wear-resistant, stain-resistant and temperature-adaptable. It enhances friction while maintaining a soft touch. This solves the problem that the existing filter screen is difficult to install and operate due to its relatively simple overall structure.
[0032] A downward pressing block 303 is slidably connected to the inner wall of the fixed base shell 301. The downward pressing block 303 has a ring structure, and a threaded rod 304 is threadedly connected to the outer wall of the downward pressing block 303. One end of the threaded rod 304 is rotatably connected to the outer wall of the fixed base shell 301. Under the action of an elastic support plate 305 installed on the outer wall of the downward pressing block 303, simply turning the threaded rod 304 causes it to rotate on the outer wall of the fixed base shell 301. At the same time, one end of the threaded rod 304 drives the downward pressing block 303 to move downward through the threaded connection. This causes the downward pressing block 303 to move downward on the inner wall of the fixed base shell 301. Since one end of the elastic support plate 305 is fixed to the inner wall of the fixed base shell 301, when one end of the elastic support plate 305 is pressed down by the downward pressing block 303, the elastic support plate 305 moves downward through the inner wall of the fixed base shell 301. Multiple sets of plates 305 are provided and are located on the outer wall of the lower pressure block 303. One end of the elastic support plate 305 is connected to the inner wall of the fixed base shell 301. The elastic support plate 305 is located on one side of the threaded rod 304 and in the inner cavity of the fixed base shell 301. Under the action of the elastic support plate 305 on one side of the elastic barrier 302, the elastic support plate 305 will elastically deform outward, thereby applying outward pressure to the elastic barrier 302, which will cause the elastic barrier 302 to open outward, so that the diameter of the elastic barrier 302 can be adjusted to suit the filter structure of different sizes. This solves the problem that the interface size of the current filter screen is fixed, and when facing filter structures of different sizes, the size of the structure cannot be adjusted for installation, resulting in poor practicality.
[0033] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A replaceable filter screen, comprising a replaceable filter interface (1) and a filter bag (2), characterized in that: A filter bag (2) is installed at one end of the replaceable filter interface (1), an adjustment component (3) is installed on the inner wall of the replaceable filter interface (1), a handle (4) is installed on the inner wall of the replaceable filter interface (1), the replaceable filter interface (1) is made of polyurethane material, and a frayed edge (5) is provided at the port of the filter bag (2). The filter bag (2) includes a high-temperature textile bottom layer (21), which is disposed on the outer wall of the replaceable filter interface (1). An antistatic metal wire (22) is disposed on the outer wall of the high-temperature textile bottom layer (21), and an ultra-fine polyester fiber surface felt (23) is disposed on one side of the antistatic metal wire (22) and on the outer wall of the high-temperature textile bottom layer (21).
2. The filter screen with a replaceable interface according to claim 1, characterized in that: The adjustment assembly (3) includes a fixed base (301) which is pluggable installed at the port of the replaceable filter interface (1).
3. A filter screen with a replaceable interface according to claim 2, characterized in that: The fixed bottom shell (301) is located on one side of the filter bag (2), and the cross-section of the fixed bottom shell (301) is a T-shaped structure.
4. A filter screen with a replaceable interface according to claim 3, characterized in that: An elastic barrier (302) is installed on the outer wall of the fixed base shell (301), and a pressing block (303) is slidably connected to the inner wall of the fixed base shell (301).
5. A filter screen with a replaceable interface according to claim 4, characterized in that: The lower pressure block (303) has an annular structure, and a threaded rod (304) is threadedly connected to the outer wall of the lower pressure block (303).
6. A filter screen with a replaceable interface according to claim 5, characterized in that: One end of the threaded rod (304) is rotatably connected to the outer wall of the fixed base shell (301), and an elastic support plate (305) is installed on the outer wall of the lower pressure block (303).
7. A filter screen with a replaceable interface according to claim 6, characterized in that: Multiple sets of elastic support plates (305) are provided and are respectively located on the outer wall of the lower pressure block (303). One end of the elastic support plate (305) is connected to the inner wall of the fixed bottom shell (301).
8. A filter screen with a replaceable interface according to claim 7, characterized in that: The elastic support plate (305) is located on one side of the threaded rod (304), the elastic support plate (305) is located in the inner cavity of the fixed bottom shell (301), and the elastic support plate (305) is located on one side of the elastic enclosure (302).
