Air filter

Abstract

The utility model discloses an air filter, which belongs to the field of air filters and comprises an outer shell, a shell cover and an air filter body, an arranged connecting mechanism is matched with the air filter body for use, when the air filter body is placed in the outer shell, connecting blocks on two sides of an air outlet are aligned with positioning ports on a connecting sleeve, and then the air filter body is connected with the shell cover. The air filter body is pushed to enable the air outlet to extrude the movable ring in the connecting sleeve, the movable ring moves upwards along the connecting hole in the fixed ring through the movable rod and forces the compression spring to perform retraction operation until the air filter body cannot be pushed, the air filter body is rotated, and the connecting block enters the rotating opening and cannot rotate, so that the air filter body is pushed to be closed. The air filter body is loosened to enable the compression spring to conduct stretching recovery operation, the air outlet is pushed downwards through the movable ring, the connecting block is clamped into the limiting opening, finally, the shell cover is screwed into the bottom of the outer shell through the handle, and therefore the air filter body can be rapidly installed in the outer shell.

Description

Technical Field

[0001] The utility model relates to the field of air filters, in particular to an air filter. Background Art

[0002] The air filter element is a kind of filter, also called air filter cartridge, air filter, style, etc. It is mainly used for air filtration in engineering locomotives, automobiles, agricultural locomotives, laboratories, sterile operating rooms and various precision operating rooms.

[0003] The engine needs to inhale a large amount of air during operation. If the air is not filtered, the dust suspended in the air will be sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder. Large particles entering between the piston and the cylinder will cause serious "cylinder pulling", which is particularly serious in dry and sandy working environments. The air filter is installed in front of the carburetor or the intake pipe to filter out dust and sand in the air to ensure that sufficient and clean air enters the cylinder.

[0004] In the prior art, the air filter is generally placed in a lower housing machine for installing the air filter in the equipment, and then the upper housing is fixed to the upper housing with several bolts through auxiliary tools to complete the installation of the air filter. This operation not only makes the installation of the air filter more troublesome, but also requires the use of more tools during installation, which is time-consuming and labor-intensive. At the same time, it is also convenient to disassemble the air filter when it is necessary to clean and replace the air filter later, which brings inconvenience to the disassembly and assembly of the air filter. Utility Model Content

[0005] The main purpose of the utility model is to provide an air filter which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An air filter comprises an outer shell, a shell cover and an air filter body, wherein the air filter body is fixedly connected to the outer shell by a connecting mechanism, and the connecting mechanism comprises a connecting sleeve, a fixed ring, a movable ring and a compression spring, the connecting sleeve is fixedly connected to the inner top surface of the outer shell, and the fixed ring is fixedly connected to the inside of the connecting sleeve, the movable ring is movably connected to the fixed ring through a movable rod on the top surface, and the compression spring is sleeved on the outside of the movable rod and fixedly connected between the fixed ring and the movable ring, and the air filter body is fixedly connected to the connecting sleeve through connecting blocks on both sides of the outer wall of the top surface air outlet.

[0008] Preferably, an air inlet pipe is fixedly mounted on the left side wall of the shell, an air outlet pipe is fixedly mounted on the right side wall of the shell, and an external threaded ring is fixedly mounted on the bottom surface of the shell.

[0009] Preferably, an internal thread is provided on the inner wall of the shell cover and is threadably connected to an external thread ring through the internal thread, and a handle is fixedly mounted on the bottom surface of the shell cover.

[0010] Preferably, the connecting sleeve is fixedly mounted on the inner top surface of the shell, and vertical positioning openings are respectively provided on both side walls of the connecting sleeve, and a horizontal rotating opening is provided on the inner side wall of the positioning opening, and a limiting opening is provided on the inner bottom surface of the rotating opening.

[0011] Preferably, the fixed ring is fixedly mounted on the inner wall of the connecting sleeve, and connecting holes are respectively opened on the four sides of the top surface of the fixed ring, movable rods are respectively fixedly mounted on the four sides of the top surface of the movable ring, and the movable rods are inserted into the connecting holes, a compression spring is sleeved on the rod body of the movable rod, and the compression spring is fixedly mounted between the fixed ring and the movable ring.

[0012] Preferably, an air outlet is fixedly mounted on the top surface of the air filter body, and a group of symmetrical connecting blocks are fixedly mounted on the outer wall of the air outlet and are located in the limiting opening.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The air filter body is then pushed to squeeze the movable ring in the connecting sleeve, and the movable ring moves upward along the connecting hole on the fixing ring through the movable rod and forces the compression spring to retract until the air filter body cannot be pushed, and then the air filter body is rotated to make the connecting block enter the rotating opening and cannot be rotated, and then the air filter body is released to make the compression spring restore and extend, and the air outlet is pushed downward through the movable ring to make the connecting block stuck in the limiting opening, and finally, the shell cover can be screwed into the bottom of the shell by the handle and installed, so that the air filter body can be quickly installed in the shell, and no auxiliary tools and bolts are needed during installation, and the installation operation is simple and quick, so that it is convenient to disassemble the air filter body when cleaning and replacing it later, thereby achieving the purpose of facilitating the disassembly and assembly of the air filter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic cutaway diagram of the overall structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall structure of the shell and shell cover of the utility model;

[0018] Figure 4 It is a schematic diagram of the structural disassembly of the connecting mechanism of the utility model;

[0019] Figure 5 It is a schematic diagram of the overall structure of the air filter body of the utility model.

[0020] In the figure: 1. outer shell; 2. shell cover; 3. air filter body; 4. connecting mechanism; 5. air inlet pipe; 6. air outlet pipe; 7. external thread ring; 8. internal thread; 9. handle; 10. connecting sleeve; 11. positioning port; 12. rotating port; 13. limiting port; 14. fixing ring; 15. connecting hole; 16. movable ring; 17. movable rod; 18. compression spring; 19. air outlet; 20. connecting block. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1 - Figure 5 As shown, an air filter comprises an outer shell 1, a shell cover 2 and an air filter body 3, the air filter body 3 is fixedly connected to the outer shell 1 through a connecting mechanism 4, and the connecting mechanism 4 comprises a connecting sleeve 10, a fixed ring 14, a movable ring 16 and a compression spring 18, the connecting sleeve 10 is fixedly connected to the inner top surface of the outer shell 1, and the fixed ring 14 is fixedly connected to the inside of the connecting sleeve 10, the movable ring 16 is movably connected to the fixed ring 14 through a movable rod 17 on the top surface, and the compression spring 18 is sleeved on the outside of the movable rod 17 and fixedly connected between the fixed ring 14 and the movable ring 16, and the air filter body 3 is fixedly connected to the connecting sleeve 10 through connecting blocks 20 on both sides of the outer wall of the top surface air outlet 19.

[0023] like Figure 1 - Figure 5As shown, in this embodiment, in order to achieve the purpose of facilitating the disassembly and assembly of the air filter body 3 through the connection mechanism 4, an air inlet pipe 5 is fixedly installed on the left wall of the shell 1, and an air outlet pipe 6 is fixedly installed on the right wall of the shell 1, an external thread ring 7 is fixedly installed on the bottom surface of the shell 1, an internal thread 8 is opened on the inner wall of the shell cover 2 and is threadedly connected with the external thread ring 7 through the internal thread 8, and a handle 9 is also fixedly installed on the bottom surface of the shell cover 2, a connecting sleeve 10 is fixedly installed on the inner top surface of the shell 1, and vertical positioning openings 11 are respectively opened on the two side walls of the connecting sleeve 10, and a transverse positioning opening 11 is opened on the inner side wall of the positioning opening The rotating opening 12 has a limited opening 13 formed on the inner bottom surface of the rotating opening 12, a fixed ring 14 is fixedly mounted on the inner wall of the connecting sleeve 10, and connecting holes 15 are respectively formed on the four sides of the top surface of the fixed ring 14, movable rods 17 are respectively fixedly mounted on the four sides of the top surface of the movable ring 16, and the movable rods 17 are inserted and installed in the connecting holes 15, a compression spring 18 is sleeved on the rod body of the movable rod 17, and the compression spring 18 is fixedly mounted between the fixed ring 14 and the movable ring 16, an air outlet 19 is fixedly mounted on the top surface of the air filter body 3, and a group of symmetrical connecting blocks 20 are fixedly mounted on the outer wall of the air outlet 19 and are located in the limited opening 13;

[0024] The specific use principle of the connecting mechanism 4 in conjunction with the air filter body 3 is as follows:

[0025] When installing the air filter body 3, place the air filter body 3 inside the housing 1, and in the process of placing, align the connecting blocks 20 installed on both sides of the outer wall of the air outlet 19 on the top surface of the air filter body 3 with the vertical positioning holes 11 opened on both sides of the outer wall of the connecting sleeve 10 installed on the top surface inside the housing 1, and then push the air filter body 3 to make the air outlet 19 enter the positioning hole 11. When pushing the air filter body 3, the air outlet 19 will squeeze the movable ring 16 in the connecting sleeve 10, and the movable ring 16 will move along the connecting holes 15 opened on the four sides of the top surface of the fixing ring 14 installed on the inner wall of the connecting sleeve 10 through the movable rods 17 installed on the four sides of the top surface, and force the movable rods 17 to move. 7 The compression spring 18 which is externally sheathed and fixedly installed between the fixed ring 14 and the movable ring 16 is retracted. At the same time, as the movable ring 16 moves, the positioning opening 11 will gradually be exposed, and the connecting block 20 will move in the positioning opening 11 until the air filter body 3 can no longer be pushed. The air filter body 3 is rotated counterclockwise, and the connecting block 20 enters the lateral rotation opening 12 opened on one side of the inner wall from the positioning opening 11. The air filter body 3 is continuously rotated until it can no longer be rotated. At this time, the pushing and rotating of the air filter body 3 are released, and the compression spring 18 will restore the extension operation and push the movable ring 16 downward so that the movable ring 16 pushes the air outlet 19 until the connecting block 2 0 enters the limiting opening 13 opened on the inner bottom surface of the rotating opening 12, so that the air filter body 3 can be quickly installed in the housing 1. If the connecting block 20 cannot be aligned with the positioning opening 11, after the air filter body 3 is placed in the housing 1, the air filter body 3 can be pushed and rotated until the connecting block 20 is aligned with the positioning opening 11 during this process and enters the positioning opening 11 after being forced. Then, the air filter body 3 can also be quickly installed by pushing and rotating it. Finally, the shell cover 2 is screwed into the bottom end of the housing 1 through the handle 9, so that the internal thread 8 on the inner wall of the shell cover 2 is threadedly connected with the external thread ring 7 at the bottom end of the housing 1. The external air enters the housing through the intake pipe 5. 1, the air filter body 3 installed in the shell 1 is purified and filtered, and the filtered air is discharged through the air outlet 19 and then discharged into the equipment through the air outlet pipe 6. When the air filter body 3 needs to be cleaned and replaced, the shell cover 2 is unscrewed by the handle 9, and the air filter body 3 is pushed to make the connecting block 20 enter the rotating port 12 from the limiting port 13, and then the air filter body 3 is rotated to make the connecting block 20 enter the positioning port 11, so that the air filter body 3 can be removed from the shell 1. Therefore, when disassembling and assembling the air filter body 3, there is no need to use auxiliary tools and bolts, and the disassembly and assembly operation is simple and quick, thereby achieving the purpose of facilitating the disassembly and assembly of the air filter body 3.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced by equivalents, or some of its technical features may be replaced by equivalents without departing from the scope of the present invention. All that is within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air filter, comprising a housing (1), a housing cover (2) and an air filter body (3), characterized in that: The air filter body (3) is fixedly connected to the housing (1) via a connecting mechanism (4), and the connecting mechanism (4) comprises a connecting sleeve (10), a fixing ring (14), a movable ring (16) and a compression spring (18). The connecting sleeve (10) is fixedly connected to the inner top surface of the housing (1), and the fixing ring (14) is fixedly connected to the inside of the connecting sleeve (10). The movable ring (16) is movably connected to the fixing ring (14) via a movable rod (17) on the top surface, and the compression spring (18) is sleeved on the outside of the movable rod (17) and fixedly connected between the fixing ring (14) and the movable ring (16). The air filter body (3) is fixedly connected to the connecting sleeve (10) via connecting blocks (20) on both sides of the outer wall of the top surface air outlet (19).

2. An air filter according to claim 1, characterized in that: An air inlet pipe (5) is fixedly mounted on the left side wall of the shell (1), an air outlet pipe (6) is fixedly mounted on the right side wall of the shell (1), and an external threaded ring (7) is fixedly mounted on the bottom surface of the shell (1).

3. An air filter according to claim 2, characterized in that: An internal thread (8) is provided on the inner wall of the shell cover (2) and is threadedly connected to the external thread ring (7) via the internal thread (8), and a handle (9) is also fixedly mounted on the bottom surface of the shell cover (2).

4. An air filter according to claim 3, characterized in that: The connecting sleeve (10) is fixedly mounted on the inner top surface of the outer shell (1), and vertical positioning openings (11) are respectively provided on the two side walls of the connecting sleeve (10), and a transverse rotating opening (12) is provided on the inner side wall of the positioning opening (11), and a limiting opening (13) is provided on the inner bottom surface of the rotating opening (12).

5. An air filter according to claim 4, characterized in that: The fixed ring (14) is fixedly mounted on the inner wall of the connecting sleeve (10), and connecting holes (15) are respectively opened on four sides of the top surface of the fixed ring (14). The movable rods (17) are respectively fixedly mounted on four sides of the top surface of the movable ring (16), and the movable rods (17) are inserted into the connecting holes (15). A compression spring (18) is sleeved on the rod body of the movable rod (17), and the compression spring (18) is fixedly mounted between the fixed ring (14) and the movable ring (16).

6. An air filter according to claim 5, characterized in that: An air outlet (19) is fixedly mounted on the top surface of the air filter body (3), and a group of symmetrical connecting blocks (20) are fixedly mounted on the outer wall of the air outlet (19) and are located in the limiting opening (13).

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