Locking-direction-adjustable hydraulic air filter with lock

By designing a lockable hydraulic air filter with adjustable locking direction, the problems of single locking direction and easy loss of air filter head are solved, realizing flexible installation, anti-theft and anti-dismantling, and high-efficiency filtration, thus improving the safety and reliability of the equipment.

CN224187847UActive Publication Date: 2026-05-01LIMING HYDRAULIC CO LTD
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Patent Information

Application Number
CN202620433547.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-04-02
Publication Date
2026-05-01
Estimated Expiration
2036-04-02

AI Technical Summary

Technical Problem

Existing hydraulic air filters have poor adaptability to locking direction, and the air filter head is easily lost, affecting installation flexibility and equipment safety.

Method used

An adjustable locking hydraulic air filter was designed. The locking direction is adjustable through the structural design of the lower and upper locking tongue plates. Flexible connectors prevent the air filter head from being lost, and a double sealing structure ensures reliable sealing.

Benefits of technology

It enables flexible adjustment of the locking direction, improves installation adaptability and anti-theft and anti-tampering functions, prevents the loss of air filter heads, ensures sealing reliability and filtration efficiency, and enhances the safety and ease of operation of the equipment.

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Abstract

The utility model relates to the technical field of hydraulic accessories, and discloses a locking-direction-adjustable hydraulic air filter with a lock, which comprises a mounting flange fixedly connected with a hydraulic oil tank interface through a plurality of connecting bolts arranged circumferentially, and the bottom end of the mounting flange is connected with an oiling filter cartridge; the lower spring bolt piece is connected between any connecting bolt and the flange face of the installation flange in a pressed mode. The air filter head is rotationally connected to the top of the mounting flange; the upper spring bolt piece is rotationally connected to the air filter head, and the upper spring bolt piece and the lower spring bolt piece are connected in a locked mode through a lock. The lower spring bolt piece can be fixed by selecting any one connecting bolt, and the upper spring bolt piece can be independently rotated and adjusted relative to the air filter head, so that the locking direction is not limited by the end position of thread screwing or the fixing direction of the mounting flange any more. A user can flexibly select the optimal locking angle according to the requirements of peripheral space layout, operation habits and the like of the oil tank, and the problems that an existing product is single in locking direction and limited in installation are solved.
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