Clamping structure of air filter cover

Abstract

The utility model discloses an air filter cover clamping structure, which relates to the technical field of automobile air filters, and adopts the technical scheme that the air filter cover clamping structure comprises an air filter shell and an air filter cover body which are connected in a clamping manner, and is characterized in that a clamping part is arranged at the end part of the air filter shell, and a clamping groove connected with the air filter shell is formed in the air filter cover body; the clamping part and the clamping groove are correspondingly arranged, a pressing ring is rotationally arranged in the clamping groove, a plurality of inclined limiting strips are annularly arrayed on the peripheral wall of the clamping part, a plurality of pull rods are annularly arrayed on the pressing ring, and pressing faces corresponding to the limiting strips are arranged on the end sides, close to the pressing ring, of the pull rods; and a sealing piece corresponding to the end part of the air filter shell is arranged in the clamping groove. According to the air filter cover, the limiting strip is arranged on the clamping part, and the limiting strip is extruded by the pull rod on the pressing ring, so that the clamping part of the air filter shell extrudes the sealing piece in the clamping groove of the air filter cover body, and the connecting position of the air filter cover body and the air filter shell is sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air filters, and more specifically, it relates to a clamping structure for an air filter cover. Background Art

[0002] An automobile air filter is an item for removing particulate impurities in the air inside an automobile. When assembling the air filter, it is generally assembled through an air filter housing and an air filter cover. During the assembly process, it is necessary to ensure that the air filter housing and the air filter cover are assembled tightly and sealed, so as to ensure the normal and stable operation of the air filter. However, the existing air filter housing and air filter cover are fastened and fixed with spring clips. Therefore, multiple spring clips need to be installed on each air filter housing, and each spring clip needs to be fastened when assembling the air filter cover. The setting of the spring clips occupies most of the installation space, resulting in the need to reserve most of the space during assembly. At the same time, the practical process of the spring clips is cumbersome and the work efficiency is low.

[0003] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a clamping structure for an air filter cover. By setting a limiting strip on the clamping part and squeezing the limiting strip by the pull rod on the pressing ring, the clamping part of the air filter housing squeezes the sealing member in the clamping groove of the air filter cover body, so as to seal the connection between the air filter cover body and the air filter housing.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A clamping structure for an air filter cover, including a clamped air filter housing and an air filter cover body. A clamping part is arranged at the end of the air filter housing. A clamping groove for connecting with the air filter housing is opened on the air filter cover body. The clamping part and the clamping groove are arranged corresponding to each other. A pressing ring is rotatably arranged in the clamping groove. A plurality of inclined limiting strips are annularly arranged on the outer peripheral wall of the clamping part. A plurality of pull rods are annularly arranged on the pressing ring. A pressing surface corresponding to the limiting strip is arranged on the end side of the pull rod close to the pressing ring. A sealing member corresponding to the end of the air filter housing is arranged in the clamping groove.

[0006] The utility model is further arranged as follows: A plurality of horizontal supporting surfaces are arranged on the end side of the limiting strip far away from the air filter cover body. The supporting surfaces and the pressing surfaces are arranged corresponding to each other. An inclined connecting surface is arranged between adjacent supporting surfaces.

[0007] The utility model is further arranged as follows: A slot hole is opened on the pressing surface. A limiting post is arranged in the slot hole. An elastic member for pushing the limiting post to slide towards the limiting strip is also arranged in the slot hole. A limiting hole corresponding to the limiting post is opened on each of the plurality of supporting surfaces. The end of the limiting post is provided with a rounded corner.

[0008] The present utility model is further configured as follows: Sector-shaped through grooves are annularly arrayed on the side wall of the clamping groove, a plurality of connecting strips are arrayed on the outer peripheral wall of the pressing ring, all of the plurality of connecting strips are connected to the inner wall of a rotating ring, and a plurality of anti-slip portions are annularly arrayed on the outer peripheral wall of the rotating ring.

[0009] The present utility model is further configured as follows: A plurality of limiting rods are annularly arrayed on the outer peripheral wall of the clamping portion, and a plurality of grooves corresponding to the plurality of limiting rods one by one are annularly arrayed on the inner wall of the clamping groove.

[0010] In summary, the present utility model has the following beneficial effects:

[0011] 1. When it is necessary to install the air filter cover body and the air filter housing together, rotate the pressing ring so that the pull rod on the pressing ring corresponds to the limiting strip, align the clamping groove of the air filter cover with the clamping portion, insert the clamping portion completely into the clamping groove, and then rotate the pressing ring so that the pressing surface on the pull rod contacts the limiting strip. Since the limiting strip is inclined, the pressing surface pushes the clamping portion through the limiting strip to squeeze the seal in the clamping groove, thereby achieving the sealing of the connection between the air filter cover body and the air filter housing.

[0012] 2. When the pressing surface fits with the supporting surface, the elastic member will push the limiting post to slide towards the supporting surface, so that when the limiting post corresponds to the limiting hole, the elastic potential energy of the elastic member pushes the limiting post into the limiting hole to limit the clamping portion of the air filter housing and the clamping groove of the air filter cover body, preventing the pressing ring from falling off easily. When disassembly is required, only apply a certain force to rotate the pressing ring in the reverse direction. Since a fillet is provided at the end of the limiting post, the fillet is squeezed against the side wall of the limiting hole, and the limiting post squeezes the elastic member, causing the limiting post to move away from the limiting hole, the pressing surface and the supporting surface move away from each other, and then the sealed air filter cover body is disassembled from the air filter housing, thereby achieving the effects of quick assembly and disassembly.

[0013] 3. The connecting strips are arranged in the sector-shaped through grooves, and the width of the sector-shaped through grooves is greater than that of the connecting strips, so that the pressing ring can rotate in the clamping groove. The outer peripheral wall of the rotating ring is provided with anti-slip portions, and when the rotating ring rotates, the pressing ring is driven to rotate through the connecting strips.

[0014] 4. The limiting rods on the outer peripheral wall of the clamping portion correspond to the grooves on the inner wall of the clamping groove when the clamping portion is inserted into the clamping groove. When the rotating pressing ring makes the supporting surface contact the pressing surface, the side wall of the groove resists the limiting rod, preventing the clamping portion from rotating in the clamping groove when the pressing ring rotates, so that the pressing surface is squeezed against the limiting strip to achieve the pushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present utility model;

[0016] Figure 2 is the cross-sectional view of the present utility model;

[0017] Figure 3 is the exploded view of the present utility model;

[0018] Figure 4 is the schematic structural view of the air filter cover body of the present utility model.

[0019] In the figure: 1. air filter housing; 2. air filter cover body; 3. clamping portion; 4. clamping groove; 5. pressing ring; 6. limiting strip; 7. pull rod; 8. pressing surface; 9. sealing member; 10. supporting surface; 11. connecting surface; 12. slot hole; 13. limiting post; 14. elastic member; 15. limiting hole; 16. sector-shaped through groove; 17. connecting strip; 18. rotating ring; 19. anti-slip portion; 20. limiting rod; 21. groove body. Specific embodiments

[0020] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] An air filter cover clamping structure, as Figures 1 to 4 shown, includes a clamped air filter housing 1 and an air filter cover body 2, a clamping portion 3 provided at the end of the air filter housing 1, and a clamping groove 4 provided at the connecting end of the air filter cover body 2. The clamping portion 3 is inserted into the clamping groove 4. A pressing ring 5 for pushing the clamping portion 3 is rotatably provided in the clamping groove 4, and a sealing member 9 corresponding to the end of the air filter housing 1 is clamped in the clamping groove 4.

[0022] A plurality of inclined limiting strips 6 are annularly arranged on the outer peripheral wall of the clamping portion 3. A plurality of horizontal supporting surfaces 10 are arranged on the limiting strips 6, and inclined connecting surfaces 11 are provided between adjacent supporting surfaces 10. A plurality of pull rods 7 are annularly arranged on the pressing ring 5, and a pressing surface 8 corresponding to the limiting strips 6 is provided on the end side of the pull rod 7 close to the pressing ring 5.

[0023] In the above embodiment, when it is necessary to install the air filter cover body 2 and the air filter housing 1 together, rotate the pressing ring 5 so that the pull rod 7 on the pressing ring 5 corresponds to the limiting strip 6, align the clamping groove 4 of the air filter cover with the clamping portion 3, insert the clamping portion 3 completely into the clamping groove 4, and then rotate the pressing ring 5 so that the pressing surface 8 on the pull rod 7 contacts the limiting strip 6. Since the limiting strip 6 is inclined, the pressing surface 8 pushes the clamping portion 3 through the limiting strip 6 to squeeze the sealing member 9 in the clamping groove 4, thereby achieving the sealing of the connection between the air filter cover body 2 and the air filter housing 1.

[0024] Refer to Figure 3As shown in the figure: A slot hole 12 is formed on the pressing surface 8. A limiting post 13 is slidably arranged in the slot hole 12. An elastic member 14 for pushing the limiting post 13 to slide towards the limiting strip 6 is also arranged in the slot hole 12. Limiting holes 15 corresponding to the limiting post 13 are formed on several supporting surfaces 10. The end of the limiting post 13 is provided with a rounded corner.

[0025] In the above embodiment, when the pressing surface 8 is attached to the supporting surface 10, the elastic member 14 will push the limiting post 13 to slide towards the supporting surface 10, so that when the limiting post 13 corresponds to the limiting hole 15, the elastic potential energy of the elastic member 14 will push the limiting post 13 into the limiting hole 15 to limit the clamping portion 3 of the air filter housing 1 and the clamping groove 4 of the air filter cover body 2, preventing the pressing ring 5 from falling off easily. When disassembly is required, only a certain force needs to be applied to rotate the pressing ring 5 in the reverse direction. Since the end of the limiting post 13 is provided with a rounded corner, the rounded corner is squeezed against the side wall of the limiting hole 15, and the limiting post 13 squeezes the elastic member 14, so that the limiting post 13 moves away from the limiting hole 15, the pressing surface 8 and the supporting surface 10 move away, and then the sealed air filter cover body 2 is disassembled from the air filter housing 1, thereby achieving the effect of rapid assembly and disassembly.

[0026] Reference Figure 3 As shown in the figure: Sector-shaped through slots 16 are annularly arranged on the side wall of the clamping groove 4. A plurality of connecting strips 17 are arranged on the outer peripheral wall of the pressing ring 5 in an array. The plurality of connecting strips 17 are fixedly connected to the rotating ring 18 by screws. A plurality of anti-slip portions 19 are annularly arranged on the outer peripheral wall of the rotating ring 18.

[0027] In the above embodiment, the connecting strip 17 is arranged in the sector-shaped through slot 16, and the width of the sector-shaped through slot 16 is greater than that of the connecting strip 17, so that the pressing ring 5 can rotate in the clamping groove 4. The outer peripheral wall of the rotating ring 18 is provided with anti-slip portions 19, and when the rotating ring 18 rotates, the pressing ring 5 is driven to rotate through the connecting strip 17.

[0028] Reference Figure 3 And Figure 4 As shown in the figure: A plurality of limiting rods 20 are annularly arranged on the outer peripheral wall of the clamping portion 3. A plurality of slots 21 corresponding to the plurality of limiting rods 20 one by one are annularly arranged on the inner wall of the clamping groove 4.

[0029] In the above embodiment, the limiting rods 20 on the outer peripheral wall of the clamping portion 3 correspond to the slots 21 on the inner wall of the clamping groove 4 when the clamping portion 3 is inserted into the clamping groove 4. When the pressing ring 5 is rotated so that the supporting surface 10 contacts the pressing surface 8, the side wall of the slot 21 resists the limiting rod 20, preventing the clamping portion 3 from rotating in the clamping groove 4 when the pressing ring 5 is rotated, so that the pressing surface 8 is squeezed against the limiting strip 6 to achieve a pushing effect.

[0030] Working principle:

[0031] When it is necessary to install the air filter cover body 2 and the air filter housing 1 together, rotate the compression ring 5 so that the pull rod 7 on the compression ring 5 corresponds to the limit strip 6, align the clamping groove 4 of the air filter cover with the clamping part 3, insert the clamping part 3 completely into the clamping groove 4, and then rotate the compression ring 5 so that the compression surface 8 on the pull rod 7 contacts the limit strip 6. Since the limit strip 6 is inclined, the compression surface 8 pushes the clamping part 3 through the limit strip 6 to squeeze the seal 9 in the clamping groove 4, thereby sealing the connection between the air filter cover body 2 and the air filter housing 1.

[0032] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A clamping structure for an air filter cover, comprising a clamped air filter housing (1) and an air filter cover body (2), characterized in that: A clamping portion (3) is provided at the end of the air filter housing (1). A clamping groove (4) for connecting with the air filter housing (1) is formed in the air filter cover body (2). The clamping portion (3) and the clamping groove (4) are arranged correspondingly. A pressing ring (5) is rotatably arranged in the clamping groove (4). A plurality of inclined limiting strips (6) are annularly arrayed on the outer peripheral wall of the clamping portion (3). A plurality of pull rods (7) are annularly arrayed on the pressing ring (5). A pressing surface (8) corresponding to the limiting strip (6) is arranged on the end side of the pull rod (7) close to the pressing ring (5). A sealing member (9) corresponding to the end of the air filter housing (1) is arranged in the clamping groove (4).

2. The air filter cover clamping structure according to claim 1, wherein: A plurality of horizontal supporting surfaces (10) are arrayed on the end side of the limiting strip (6) far from the air filter cover body (2). The supporting surface (10) and the pressing surface (8) are arranged correspondingly. An inclined connecting surface (11) is arranged between adjacent supporting surfaces (10).

3. The air filter cover clamping structure according to claim 2, characterized in that: A slot hole (12) is formed in the pressing surface (8). A limiting post (13) is arranged in the slot hole (12). An elastic member (14) for pushing the limiting post (13) to slide towards the limiting strip (6) is further arranged in the slot hole (12). A limiting hole (15) corresponding to the limiting post (13) is formed in each of the plurality of supporting surfaces (10). The end of the limiting post (13) is provided with a rounded corner.

4. The air filter cover clamping structure according to claim 3, characterized in that: Sector-shaped through grooves (16) are annularly arrayed on the side wall of the clamping groove (4). A plurality of connecting strips (17) are arrayed on the outer peripheral wall of the pressing ring (5). Each of the plurality of connecting strips (17) is connected to the inner wall of a rotating ring (18). A plurality of anti-slip portions (19) are annularly arrayed on the outer peripheral wall of the rotating ring (18).

5. The air filter cover clamping structure according to claim 4, characterized in that: A plurality of limiting rods (20) are annularly arrayed on the outer peripheral wall of the clamping portion (3). A plurality of grooves (21) corresponding to the plurality of limiting rods (20) one by one are annularly arrayed on the inner wall of the clamping groove (4).

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