Connecting structure for air filter

Abstract

The invention discloses a connecting structure for an air filter. The connecting structure comprises an upper shell body, a bottom cap and a connecting assembly connecting the upper shell body with the bottom cap. The connecting assembly comprises a first support fixedly connected with the upper shell body, a second support fixedly connected with the bottom cap and a tensioning part connecting the first support with the second support. The tensioning part tensions the first support and the second support to fix the upper shell body to the bottom cap. According to the technical scheme, the first support is arranged on the upper shell body, the second support is arranged on the bottom cap, and the tensioning part tensions the first support and the second support and achieves fastening of the upper shell body and the bottom cap through pulling force; abrasion to the connecting assembly, the upper shell body and the bottom cap is reduced; reliability and leakproofness of connecting of the air filter are improved.

Description

technical field [0001] The invention relates to the technical field of engine systems, in particular to a connection structure of an air filter. Background technique [0002] The car engine takes in a lot of air during its working process. 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 cylinder, and if larger particles enter the piston and cylinder In between, it will cause a serious "squeeze" phenomenon. [0003] In the engine system, the air filter is an assembly for filtering dust in the air. The structure of the air filter in the prior art is as follows: figure 1 As shown, the air filter 1' includes an upper casing 11' and a bottom cover 12', the upper casing and the bottom cover are clamped and fixed by a card 13', the card 13' is a curved structure, one end is a handle 131', and the other end is a curved The hook 132' and the card 13' are rotatably connected to the upp...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned structure, the handle rubs against the upper case, and when the hook is inserted into the groove, the hook rubs against the bottom cover, which causes a large amount of wear of the card during multiple clamping or loosening processes, resulting in The clamping connection between the upper shell and the bottom cover of the air filter is loose and the seal is poor. At the same time, because the card is an elastic thin plate, it is easy to deform under the action of the clamping force, resulting in defects such as insufficient clamping force.

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