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Air filter provided with lockable back cover

An air filter and lock-type technology, which is applied in the direction of fuel air filter, building fastening devices, construction, etc., to achieve the effect of saving cost, good strength, and avoiding plastic deformation problems

Inactive Publication Date: 2012-03-14
蚌埠国威滤清器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned design method, provide a new air filter design method, solve the installation problem between the back cover and the shell of the existing plastic air filter, and improve the use of the air filter. life

Method used

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  • Air filter provided with lockable back cover
  • Air filter provided with lockable back cover
  • Air filter provided with lockable back cover

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Embodiment Construction

[0021] Embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings:

[0022] see figure 1 , figure 2 , This air filter comprises outlet pipe 5, shell 6, filter element 7, back cover 2, lock pin 1, dust bag 8. The air outlet pipe 5 is installed on one end of the casing 6, the filter element 7 is installed inside the casing 6, the back cover 2 is screwed on the other end of the casing 6, and a dust discharge belt 8 is installed on the back cover 2, between the back cover 2 and the casing Lock pin 1 is arranged between 6.

[0023] like figure 1 , figure 2 As shown, several evenly distributed protruding bars 3 are provided at the junction between the inner side of the rear cover 2 and the shell 6, and several evenly distributed protruding slots 4 are provided on the outer wall of the shell 6 corresponding thereto; 2. There is a lock pin groove 2a at a horizontal bar on the periphery corresponding to the opposite di...

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Abstract

The invention relates to an air filter provided with a lockable back cover. The air filter comprises an air outlet pipe (5), a shell (6), a filter core (7), a back cover (2), a lock pin (1) and a dust removal bag (8), wherein the back cover of the air filter is connected with the shell by adopting a screwing way; the combination part of the back cover and the shell is respectively provided with paired horizontal strips (3) and a clamping groove (4) which are distributed along the circumference; one horizontal strip at the periphery of the back cover, which reversely corresponds to the dust removal bag is provided with a lock pin slot (2a), and the lock pin is arranged in the lock pin slot; when the lock pin is pushed in, the back cover is locked; and when the lock pin is pulled open, the back cover can be screwed off. Due to the structure of the invention, the problems that the back cover of the air filter falls down due to vibration of an engine or automobile when the air filter works, the back cover cannot be mounted due to plastic deformation of parts of the air filter after used for along time are effectively avoided; and the air filter has the advantages of connection reliability and greatly-reduced maintenance cost of the engine.

Description

technical field [0001] The invention relates to a dry plastic air filter, in particular to a dry plastic air filter with a lockable rear cover. Background technique [0002] The air filter is a part of the engine intake system. Its function is to filter out the dust in the intake air, provide clean air for the system, protect the cylinder, piston and piston ring of the engine, and prolong the service life of the engine. With the continuous and rapid development of modern industry, non-renewable resources are constantly decreasing, and the voice of energy saving, environmental protection and green manufacturing projects is getting higher and higher. "Replacing steel with plastic" is the current development trend of the automobile industry. The filter industry Along with the development of the automobile industry, many engineering plastic products have appeared. [0003] Compared with the filter products of metal shell parts, engineering plastic parts have the characteristics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/02E05C1/02
Inventor 陈峰
Owner 蚌埠国威滤清器有限公司
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