Metal filter of air compressor

Abstract

The utility model relates to a metal filter of an air compressor, which is connected with an air inlet pipe of the air compressor and comprises a filter body, a fixing pipe, a connecting pipe and a connecting component, the fixing pipe is detachably connected with the filter body, and one end of the connecting pipe is detachably connected with the air inlet pipe. The connecting assembly comprises an elastic sealing piece and an elastic buffering piece, and the connecting pipe extends to a port in the fixing pipe and is connected with the opening of the fixing pipe through the elastic sealing piece and the elastic buffering piece; the elastic buffer part is arranged on the inner wall of the fixed pipe and is connected with the part, extending into the fixed pipe, of the connecting pipe, so that relative displacement is generated between the fixed pipe and the connecting pipe; the problems that a connecting structure between a metal filter with a damping effect and an air inlet pipe is complex, and mounting and dismounting are inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a metal filter for air compressors. Background Art

[0002] An air compressor is a device used to compress gas. A metal filter is installed inside the air compressor. The metal filter is connected to the air intake valve of the air compressor through a joint and a threaded pipe to filter out dust in the air.

[0003] Since the existing metal filter and the air compressor are fixedly connected, the metal filter is easy to detach from the air intake pipe of the air compressor due to vibration. For this purpose, a metal filter for an air compressor with a shock-absorbing effect proposed in the utility model patent with application number CN202322249807.6 can be used, wherein the metal filter includes an air compressor and an air intake pipe arranged inside the air compressor, an air intake valve is fixedly sleeved on the pipe wall of the air intake pipe, a sleeve is sleeved on the outer side of the air intake pipe, and the sleeve is connected to the metal filter; a first annular plate is provided on the outer side of one end of the sleeve away from the air intake pipe through a shock-absorbing component, the first annular plate is sleeved on the outer side of the air intake pipe, and a plug-in positioning mechanism for connecting the first annular plate and the air intake pipe is provided at both ends of the inner wall of the first annular plate and the outer side of the air intake pipe.

[0004] However, the connection structure between the metal filter and the air intake pipe is complex, and installation and disassembly are inconvenient. Utility Model Content

[0005] In view of this, it is necessary to provide a metal filter for an air compressor to solve the problem of complex connection structure between the metal filter with a shock-absorbing effect and the air intake pipe and inconvenient installation and disassembly.

[0006] The utility model provides a metal filter for an air compressor, which is connected to an air intake pipe of the air compressor and comprises a filter body, a fixed pipe, a connecting pipe and a connecting assembly, wherein the fixed pipe is detachably connected to the filter body, one end of the connecting pipe is detachably connected to the air intake pipe, the other end of the connecting pipe passes through an opening of the fixed pipe away from one end of the filter body and extends into the fixed pipe, the connecting assembly comprises an elastic sealing member and an elastic buffer member, the port of the connecting pipe extending into the fixed pipe is connected via the elastic sealing member and the opening of the fixed pipe so as to form a closed passage between the fixed pipe, the elastic sealing member and the connecting pipe, the elastic buffer member is installed on the inner wall of the fixed pipe and is connected to the portion of the connecting pipe extending into the fixed pipe so as to buffer the relative force between the fixed pipe and the connecting pipe.

[0007] Furthermore, the fixing pipe and the filter body are detachably connected via a flange connection.

[0008] Furthermore, the connecting pipe is threadedly connected to the air intake pipe.

[0009] Furthermore, a retaining ring for abutting against the air intake pipe is fixedly connected to the outer wall of the connecting pipe.

[0010] Furthermore, it also includes a connecting ring, which is coaxially arranged at the opening of the fixed tube. The part of the connecting tube extending into the fixed tube is in a T-shaped structure, and its outer edge is arranged opposite to the connecting ring. The outer edge of the connecting tube extending to the end of the fixed tube is connected to the connecting ring via the elastic seal.

[0011] Furthermore, the elastic sealing member is an annular rubber sleeve.

[0012] Furthermore, the elastic buffer comprises a plurality of top blocks and springs uniformly arranged along the circumference of the connecting tube, one end of each of the springs is fixedly connected to the inner wall of the connecting ring, and the other end is respectively fixedly connected to the plurality of top blocks, and the top blocks abut against the outer wall of the connecting tube.

[0013] Furthermore, the top block is a spherical block.

[0014] Furthermore, the fixed tube includes a tube body and a tube cap, one end of the tube body is detachably connected to the filter body, and the other end of the tube body is detachably connected to the tube cap, the connecting tube passes through the opening formed on the tube cap and extends into the tube cap, and the connecting assembly is installed in the tube cap.

[0015] Furthermore, the opening of the fixing pipe is clearance-matched with the connecting pipe.

[0016] Compared with the prior art, the fixed pipe, the connecting pipe and the connecting assembly are assembled as a whole before leaving the factory. During installation, it is only necessary to connect the connecting pipe to the air intake pipe of the air compressor and connect the fixed pipe to the filter body. The installation is convenient. The fixed pipe and the connecting pipe are connected via an elastic sealing member. While achieving sealing, relative displacement between the fixed pipe and the connecting pipe is allowed. At the same time, an elastic buffer is provided to buffer the relative force between the fixed pipe and the connecting pipe, thereby achieving a shock absorbing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of the metal filter of the air compressor provided by the embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of the connection between the fixed pipe and the connecting pipe in the metal filter of the air compressor provided by the embodiment of the utility model;

[0019] Figure 3 Air compressor metal filter provided by the utility model embodiment Figure 2 Enlarged schematic diagram of part A in the middle. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0021] like Figure 1-2 As shown, the utility model provides a metal filter for an air compressor, which is connected to an air intake pipe M of the air compressor, and includes a filter body 100, a fixed pipe 200, a connecting pipe 300 and a connecting assembly 400. The fixed pipe 200 is detachably connected to the filter body 100, one end of the connecting pipe 300 is detachably connected to the air intake pipe M, and the other end of the connecting pipe 300 passes through an opening of the fixed pipe 200 away from one end of the filter body 100 and extends into the fixed pipe 200. The connecting assembly 400 includes an elastic seal 410 and an elastic buffer 420. The port of the connecting pipe 300 extending into the fixed pipe 200 passes through the elastic seal 410 and the opening of the fixed pipe 200 to form a closed passage between the fixed pipe 200, the elastic seal 410 and the connecting pipe 300. The elastic buffer 420 is installed on the inner wall of the fixed pipe 200 and is connected to the portion of the connecting pipe 300 extending into the fixed pipe 200 to buffer the relative force between the fixed pipe 200 and the connecting pipe 300.

[0022] During implementation, the fixed pipe 200, the connecting pipe 300 and the connecting assembly 400 are assembled as a whole before leaving the factory. During installation, it is only necessary to connect the connecting pipe 300 to the air intake pipe M of the air compressor and connect the fixed pipe 200 to the filter body 100. The installation is convenient. The fixed pipe 200 and the connecting pipe 300 are connected via an elastic seal 410. While achieving sealing, relative displacement between the fixed pipe 200 and the connecting pipe 300 is allowed. At the same time, an elastic buffer 420 is provided to buffer the relative force between the fixed pipe 200 and the connecting pipe 300, thereby achieving a shock absorbing function.

[0023] The filter body 100 in this embodiment is a structure for filtering the gas entering the air compressor, which is a structure that can be thought of by those skilled in the art and will not be elaborated and illustrated in detail here.

[0024] The fixing pipe 200 in this embodiment is detachably connected to the filter body 100 .

[0025] In one embodiment, the fixing pipe 200 and the filter body 100 are detachably connected via a flange connection. Of course, in other embodiments, a clamp connection or the like may also be used, which is not limited thereto.

[0026] In this embodiment, one end of the connecting pipe 300 is detachably connected to the air inlet pipe M, and the other end of the connecting pipe 300 passes through an opening of the fixed pipe 200 at one end away from the filter body 100 and extends into the fixed pipe 200.

[0027] In one embodiment, the connecting pipe 300 is threadedly connected to the air intake pipe M. During installation, the fixing pipe 200, the connecting pipe 300 and the connecting assembly 400 are rotated as a whole relative to the air intake pipe M so that the connecting pipe 300 is screwed into the air intake pipe M. After the connection between the connecting pipe 300 and the air intake pipe M is completed, the fixing pipe 200 is connected to the filter body 100.

[0028] In order to limit the depth of the connecting pipe 300 being screwed into the air intake pipe M, in one embodiment, a retaining ring 310 for abutting against the air intake pipe M is fixedly connected to the outer wall of the connecting pipe 300 .

[0029] The connecting assembly 400 in this embodiment includes an elastic seal 410 and an elastic buffer 420. The connecting tube 300 extends to the port in the fixed tube 200 via the elastic seal 410 and the opening of the fixed tube 200 to form a closed passage between the fixed tube 200, the elastic seal 410 and the connecting tube 300. The elastic buffer 420 is installed on the inner wall of the fixed tube 200 and is connected to the part of the connecting tube 300 extending into the fixed tube 200 to buffer the relative force between the fixed tube 200 and the connecting tube 300.

[0030] To facilitate the installation of the elastic seal 410, the present embodiment also includes a connecting ring 210, which is coaxially arranged at the opening of the fixed tube 200. The portion of the connecting tube 300 extending into the fixed tube 200 is in a T-shaped structure, and its outer edge is arranged opposite to the connecting ring 210. The outer edge of the connecting tube 300 extending to the end of the fixed tube 200 is connected to the connecting ring 210 via the elastic seal 410.

[0031] In one embodiment, the elastic sealing member 410 is an annular rubber sleeve, which can be deformed in multiple directions, thereby providing relative displacement in multiple directions between the fixed tube 200 and the connecting tube 300. It is understandable that the annular rubber sleeve and the connecting ring 210 and the connecting tube 300 can be bonded with glue or in other ways, which is not limited in the embodiment of the utility model.

[0032] like Figure 3As shown, in one embodiment, the elastic buffer 420 includes a plurality of top blocks 421 and springs 422 uniformly arranged along the circumference of the connecting tube 300, one end of each of the plurality of springs 422 is fixedly connected to the inner wall of the connecting ring 210, and the other end is fixedly connected to the plurality of top blocks 421, respectively, and the top blocks 421 abut against the outer wall of the connecting tube 300. The top blocks 421 are spherical blocks.

[0033] It is understandable that the top block 421 may also be in other shapes, and the spring 422 may also be replaced by a rubber pad or other structure.

[0034] For the edge assembly connecting assembly 400, in one embodiment, the fixed tube 200 includes a tube body 220 and a tube cap 230, one end of the tube body 220 is detachably connected to the filter body 100, and the other end of the tube body 220 is detachably connected to the tube cap 230, the connecting tube 300 passes through an opening formed on the tube cap 230 and extends into the tube cap 230, and the connecting assembly 400 is installed in the tube cap 230.

[0035] The opening of the fixing pipe 200 is loosely matched with the connecting pipe 300 .

[0036] Compared with the prior art: the fixed pipe 200, the connecting pipe 300 and the connecting assembly 400 are assembled as a whole before leaving the factory. During installation, it is only necessary to connect the connecting pipe 300 to the air intake pipe M of the air compressor and connect the fixed pipe 200 to the filter body 100. The installation is convenient. The fixed pipe 200 and the connecting pipe 300 are connected via an elastic seal 410. While achieving sealing, relative displacement between the fixed pipe 200 and the connecting pipe 300 is allowed. At the same time, an elastic buffer 420 is provided to buffer the relative force between the fixed pipe 200 and the connecting pipe 300, thereby achieving a shock absorbing function.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A metal filter for an air compressor, connected to an air intake pipe of the air compressor, characterized in that: Including filter body, fixing pipe, connecting pipe and connecting components: The fixed tube is detachably connected to the filter body; One end of the connecting pipe is detachably connected to the air inlet pipe, and the other end of the connecting pipe passes through an opening of the fixing pipe away from one end of the filter body and extends into the fixing pipe; The connecting assembly includes an elastic seal and an elastic buffer. The connecting tube extends to a port in the fixed tube via the elastic seal and an opening of the fixed tube so as to form a closed passage between the fixed tube, the elastic seal and the connecting tube. The elastic buffer is installed on the inner wall of the fixed tube and connected to the portion of the connecting tube extending into the fixed tube so as to buffer the relative force between the fixed tube and the connecting tube.

2. The air compressor metal filter according to claim 1, characterized in that: The fixing pipe and the filter body are detachably connected via a flange connection piece.

3. The air compressor metal filter according to claim 1, characterized in that: The connecting pipe is threadedly connected to the air intake pipe.

4. The air compressor metal filter according to claim 3, characterized in that: The outer wall of the connecting pipe is fixedly connected with a retaining ring for abutting against the air intake pipe.

5. The air compressor metal filter according to claim 1, characterized in that: It also includes a connecting ring, which is coaxially arranged at the opening of the fixed tube. The part of the connecting tube extending into the fixed tube is in a T-shaped structure, and its outer edge is arranged opposite to the connecting ring. The outer edge of the connecting tube extending to the end of the fixed tube is connected to the connecting ring via the elastic sealing member.

6. The air compressor metal filter according to claim 5, characterized in that: The elastic sealing member is an annular rubber sleeve.

7. The air compressor metal filter according to claim 5, characterized in that: The elastic buffer comprises a plurality of top blocks and springs uniformly arranged along the circumference of the connecting tube, one end of each of the springs is fixedly connected to the inner wall of the connecting ring, and the other end is respectively fixedly connected to the plurality of top blocks, and the top blocks abut against the outer wall of the connecting tube.

8. The air compressor metal filter according to claim 7, characterized in that: The top block is a spherical block.

9. The air compressor metal filter according to claim 1, characterized in that: The fixed tube includes a tube body and a tube cap, one end of the tube body is detachably connected to the filter body, and the other end of the tube body is detachably connected to the tube cap, the connecting tube passes through the opening formed on the tube cap and extends into the tube cap, and the connecting assembly is installed in the tube cap.

10. The air compressor metal filter according to claim 1, characterized in that: The opening of the fixing pipe is clearance-matched with the connecting pipe.

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