Air cleaner double-layer filter paper dismounting structure

Abstract

The utility model relates to air filter technical field discloses a kind of air filter double-layer filter paper dismounting structure, including filter structure, the filter structure includes outer filter paper, outer fixed mounting frame and inner filter paper, outer fixed mounting frame is installed to the outer wall of outer filter paper, the inner side of outer filter paper is equipped with inner filter paper, inner fixed mounting frame is installed to the outer side of inner filter paper, connecting structure, the connecting structure includes rubber pad, connecting plate and locating plate, the bottom of inner fixed mounting frame is equipped with rubber pad, the outer wall of inner fixed mounting frame is equipped with multiple connecting plate, the outer wall of connecting plate is equipped with locating plate;The utility model is stable and reliable to install, double sealing is prevented from air leakage, handle operation does not need tool, dismounting is simple and easy, modular design supports layered replacement, effectively reduces maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically to a disassembly and assembly structure for a double-layer filter paper in an air filter. Background Technology

[0002] Air filters are the core components that filter impurities (such as dust and sand) from the air entering the engine or equipment. Essentially, they provide clean air for the engine to "breathe" and prevent impurities from wearing down internal parts.

[0003] Most existing air filters have a single-layer filter paper structure, which has limited filtration accuracy, is prone to clogging, and has a short service life. Although some double-layer filter elements improve filtration performance, they have problems such as complicated disassembly and assembly, poor sealing, and easy air leakage. Moreover, replacement often requires complete disassembly, which is inconvenient and costly to maintain. In addition, the connection method is laborious to install and make it difficult to achieve quick replacement. In view of the above, we propose a double-layer filter paper disassembly and assembly structure for air filters. Utility Model Content

[0004] The purpose of this invention is to provide a disassembly and assembly structure for a double-layer filter paper in an air filter, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-layer filter paper disassembly and assembly structure for an air filter, comprising a filter structure, wherein the filter structure comprises an outer filter paper, an outer fixed mounting bracket and an inner filter paper, the outer wall of the outer filter paper is fitted with an outer fixed mounting bracket, the inner side of the outer filter paper is provided with an inner filter paper, and the outer side of the inner filter paper is fitted with an inner fixed mounting bracket;

[0006] The connection structure includes a rubber pad, a connecting plate, and a positioning plate. A rubber pad is installed at the bottom of the inner fixed mounting frame. Multiple connecting plates are installed on the outer wall of the inner fixed mounting frame. A positioning plate is installed on the outer wall of the connecting plate. The positioning plate is located inside a positioning groove, which is located inside the outer fixed mounting frame. A mounting plate is located above the filter structure. A handle is installed at the center of the top of the mounting plate. A fixing cylinder is located at the bottom of the mounting plate, positioned between the inner and outer fixed mounting frames. A sealing ring is located on the outer side of the fixing cylinder, and its upper part is installed at the bottom of the mounting plate.

[0007] Preferably, the middle position of the outer filter paper is on the same horizontal line as the middle position of the inner filter paper.

[0008] Preferably, the internal fixing bracket and the rubber pad are fitted together in a tight fit.

[0009] Preferably, the internal fixed mounting bracket and the connecting plate are fixedly connected, and the connecting plate and the positioning plate are arranged in a T-shape.

[0010] Preferably, the positioning plate and the positioning groove are slidably connected, and the positioning groove and the external fixed mounting bracket are integrated.

[0011] Preferably, the multiple connecting plates are arranged at equal distances.

[0012] Preferably, the mounting plate and the fixed cylinder are fixedly connected, and the mounting plate and the handle are integrated.

[0013] Preferably, a first internal thread is installed on the upper part of the inner wall of the external fixing bracket, and a second external thread is installed on the upper part of the outer wall of the internal fixing bracket.

[0014] Preferably, the outer wall of the fixed cylinder is provided with a first external thread, and the inner wall of the fixed cylinder is provided with a second internal thread.

[0015] Preferably, the fixing cylinders are threadedly connected to the upper part of the outer wall of the inner fixing bracket and the upper part of the inner wall of the outer fixing bracket, and the mounting plate and the sealing ring are tightly fitted together.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] This utility model uses a fixed cylinder with internal and external reverse threads, which can simultaneously lock the inner and outer filter element frames by turning the handle, achieving a fast and reliable fixed connection. The positioning plate and positioning groove ensure precise assembly. The double sealing structure composed of rubber gaskets and sealing rings effectively prevents airflow bypass. The inner filter paper can be independently installed and removed, supporting layer replacement and reducing usage costs. The guide positioning design makes assembly simple, prevents misalignment, and improves installation efficiency and reliability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a frontal cross-sectional view of the present invention.

[0021] Figure 3 This is a top view sectional structural diagram of the present invention;

[0022] Figure 4 This is a partial three-dimensional structural diagram of the connection structure of this utility model.

[0023] In the diagram: 1. Filter structure; 2. Connection structure; 101. Outer filter paper; 102. Outer fixed mounting bracket; 103. Inner filter paper; 104. Inner fixed mounting bracket; 201. Rubber pad; 202. Connecting plate; 203. Positioning plate; 204. Positioning groove; 205. Mounting plate; 206. Handle; 207. Fixing cylinder; 208. Sealing ring. Detailed Implementation

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution for the disassembly and assembly structure of a double-layer filter paper in an air filter: a disassembly and assembly structure of a double-layer filter paper in an air filter includes a filter structure 1, the filter structure 1 includes an outer filter paper 101, an outer fixed mounting bracket 102 and an inner filter paper 103, the outer wall of the outer filter paper 101 is equipped with the outer fixed mounting bracket 102, the inner side of the outer filter paper 101 is provided with the inner filter paper 103, and the outer side of the inner filter paper 103 is equipped with the inner fixed mounting bracket 104;

[0028] The connecting structure 2 includes a rubber pad 201, a connecting plate 202, and a positioning plate 203. The bottom of the inner fixed mounting bracket 104 is equipped with a rubber pad 201. Multiple connecting plates 202 are installed on the outer wall of the inner fixed mounting bracket 104. The outer wall of the connecting plate 202 is equipped with a positioning plate 203. The positioning plate 203 is located inside the positioning groove 204. The positioning groove 204 is located inside the outer fixed mounting bracket 102. The filter structure 1 is equipped with a mounting plate 205 above it. A handle 206 is installed at the middle of the top of the mounting plate 205. A fixing cylinder 207 is provided at the bottom of the mounting plate 205. The fixing cylinder 207 is located between the inner fixed mounting bracket 104 and the outer fixed mounting bracket 102. A sealing ring 208 is provided on the outer side of the fixing cylinder 207. The top of the sealing ring 208 is installed at the bottom of the mounting plate 205.

[0029] The middle position of the outer filter paper 101 and the middle position of the inner filter paper 103 are on the same horizontal line. The outer filter paper 101 intercepts large dust particles, while the inner filter paper 103 filters out tiny impurities, achieving two-stage purification and significantly improving air quality.

[0030] The internal fixing bracket 104 and the rubber pad 201 are designed to fit tightly together.

[0031] The internal fixed mounting bracket 104 is fixedly connected to the connecting plate 202, and the connecting plate 202 and the positioning plate 203 form a T-shaped arrangement.

[0032] The positioning plate 203 and the positioning groove 204 are slidably connected, and the positioning groove 204 and the external fixed mounting bracket 102 are integrated.

[0033] The multiple connecting plates 202 are set at equal distances.

[0034] The mounting plate 205 and the fixed cylinder 207 are fixedly connected, and the mounting plate 205 and the handle 206 are integrated, which facilitates one-handed operation, requires no tools, and is suitable for frequent maintenance scenarios.

[0035] The upper part of the inner wall of the external mounting bracket 102 is provided with a first internal thread, and the upper part of the outer wall of the internal mounting bracket 104 is provided with a second external thread.

[0036] The outer wall of the fixed cylinder 207 is fitted with a first external thread, and the inner wall of the fixed cylinder 207 is fitted with a second internal thread.

[0037] The fixed cylinder 207 is threadedly connected to the upper part of the outer wall of the inner fixed mounting bracket 104 and the upper part of the inner wall of the outer fixed mounting bracket 102. The mounting plate 205 and the sealing ring 208 are tightly fitted together. The first external thread on the outer wall of the fixed cylinder 207 and the second internal thread on its inner wall have opposite directions of rotation. When the handle 206 is turned in one direction, the two threaded connections can be tightened at the same time, achieving a fast and synchronous locking effect, making the operation more efficient and convenient.

[0038] Working principle:

[0039] First, insert the inner filter paper 103 together with the inner fixed mounting bracket 104 into the outer filter paper 101 to ensure that the two layers of filter paper are concentrically aligned, and align the positioning plate 203 on the connecting plate 202 with the positioning groove 204 on the inner side of the outer fixed mounting bracket 102 and slide it into it to complete the initial positioning and prevent the inner components from shifting or rotating during the assembly process.

[0040] Next, the user holds the handle 206 and places the fixing cylinder 207 below the mounting plate 205 between the inner fixing mounting bracket 104 and the outer fixing mounting bracket 102. By rotating the handle 206, the fixing cylinder 207 is rotated, and the first external thread on its outer wall engages with the first internal thread on the inner wall of the outer fixing mounting bracket 102. At the same time, the second internal thread on its inner wall engages with the second external thread on the outer wall of the inner fixing mounting bracket 104, thereby achieving synchronous locking of the inner and outer mounting brackets.

[0041] As the fixing cylinder 207 is screwed in, its lower end presses against the rubber pad 201, making a tight contact between the inner fixing bracket 104 and the outer fixing bracket 102. At the same time, the sealing ring 208 at the bottom of the mounting plate 205 is compressed and fits against the top of the outer fixing bracket 102, further enhancing the overall sealing and preventing airflow bypass.

[0042] During disassembly, rotate the handle 206 in the opposite direction to loosen the fixing cylinder 207, release the locking of the positioning plate 203 and the positioning groove 204, and easily remove the inner filter paper 103 assembly for cleaning and replacement.

[0043] Although embodiments of the present utility 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 utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disassembly and assembly structure for a double-layer filter paper in an air filter, characterized in that, include The filter structure (1) includes an outer filter paper (101), an outer fixed mounting bracket (102), and an inner filter paper (103). The outer wall of the outer filter paper (101) is fitted with the outer fixed mounting bracket (102), the inner side of the outer filter paper (101) is provided with the inner filter paper (103), and the outer side of the inner filter paper (103) is fitted with the inner fixed mounting bracket (104). The connecting structure (2) includes a rubber pad (201), a connecting plate (202), and a positioning plate (203). A rubber pad (201) is installed at the bottom of the inner fixed mounting bracket (104). Multiple connecting plates (202) are installed on the outer wall of the inner fixed mounting bracket (104). A positioning plate (203) is installed on the outer wall of the connecting plate (202). The positioning plate (203) is located inside the positioning groove (204). The positioning groove (204) is located on the outer fixed mounting bracket (104). Inside the filter structure (1), an installation plate (205) is provided above the filter structure (1). A handle (206) is installed at the middle position of the top of the installation plate (205). A fixing cylinder (207) is provided at the bottom of the installation plate (205). The fixing cylinder (207) is located between the inner fixing mounting bracket (104) and the outer fixing mounting bracket (102). A sealing ring (208) is provided on the outer side of the fixing cylinder (207). The sealing ring (208) is installed at the bottom of the installation plate (205).

2. The air filter double-layer filter paper disassembly and assembly structure according to claim 1, characterized in that: The middle position of the outer filter paper (101) and the middle position of the inner filter paper (103) are on the same horizontal line.

3. The air filter double-layer filter paper disassembly and assembly structure according to claim 2, characterized in that: The internal fixing bracket (104) and the rubber pad (201) are fitted together tightly.

4. The air filter double-layer filter paper disassembly and assembly structure according to claim 3, characterized in that: The internal fixed mounting bracket (104) and the connecting plate (202) are fixedly connected, and the connecting plate (202) and the positioning plate (203) form a T-shaped arrangement.

5. The air filter double-layer filter paper disassembly and assembly structure according to claim 4, characterized in that: The positioning plate (203) and the positioning groove (204) are slidably connected, and the positioning groove (204) and the external fixed mounting bracket (102) are integrated.

6. The air filter double-layer filter paper disassembly and assembly structure according to claim 5, characterized in that: The multiple connecting plates (202) are arranged at equal distances.

7. The air filter double-layer filter paper disassembly and assembly structure according to claim 6, characterized in that: The mounting plate (205) and the fixed cylinder (207) are fixedly connected, and the mounting plate (205) and the handle (206) are integrated.

8. The air filter double-layer filter paper disassembly and assembly structure according to claim 7, characterized in that: The upper part of the inner wall of the external fixed mounting bracket (102) is provided with a first internal thread, and the upper part of the outer wall of the internal fixed mounting bracket (104) is provided with a second external thread.

9. The air filter double-layer filter paper disassembly and assembly structure according to claim 8, characterized in that: The outer wall of the fixed cylinder (207) is fitted with a first external thread, and the inner wall of the fixed cylinder (207) is fitted with a second internal thread.

10. The air filter double-layer filter paper disassembly and assembly structure according to claim 9, characterized in that: The fixed cylinder (207) is threadedly connected to the upper part of the outer wall of the inner fixed mounting bracket (104) and the upper part of the inner wall of the outer fixed mounting bracket (102), and the mounting plate (205) and the sealing ring (208) are tightly fitted together.

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