Pneumatic hydraulic rod with self-locking function

By installing a self-locking structure on the outside of the pneumatic hydraulic rod and using a self-locking housing and self-locking components, the problem of the piston rod slightly extending or retracting after stopping is solved, achieving higher precision and stability.

CN223424379UActive Publication Date: 2025-10-10TIANJINSHI BOTAI METALLIC PROD CO LTD
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Patent Information

Application Number
CN202422261451.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-10-10
Estimated Expiration
2034-09-14

AI Technical Summary

Technical Problem

The piston rod of the existing pneumatic hydraulic rod is prone to slight extension or contraction after stopping, resulting in insufficient precision.

Method used

A pneumatic hydraulic rod with a self-locking function is designed. A self-locking structure is installed on the outside of the hydraulic rod structure, including a self-locking shell, a follower rod assembly and a self-locking assembly. A micro-electric telescopic rod and a self-locking unit are used. When the piston rod stops, the self-locking ball is tightly pressed against the self-locking groove to avoid micro-extension or micro-contraction.

Benefits of technology

It effectively solves the problem of the piston rod slightly extending or contracting after stopping, improves accuracy and practicality, and ensures that the piston rod remains stable when stopped.

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Abstract

The pneumatic hydraulic rod with the self-locking function comprises a hydraulic rod structure and a self-locking structure, the hydraulic rod structure is sleeved with the self-locking structure, and the self-locking structure is connected with the end of a piston rod of the hydraulic rod structure. The self-locking structure has the advantages that the self-locking structure is suitable for an existing pneumatic rod or a hydraulic rod, the self-locking structure can solve the problem that after the piston rod stops advancing, the piston rod slightly stretches or shrinks easily through the follow-up rod assembly and the self-locking assemblies, practicability is high, the multiple self-locking assemblies can be arranged, and the self-locking structure is convenient to use. Therefore, the risk that the piston rod slightly stretches or shrinks after stopping advancing is further avoided.
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