Cylinder cover fixing structure of gas compressor

By combining threaded connections, sealing gaskets, and anti-slip rings, the problem of cylinder head fixing structure loosening under high-frequency vibration environment is solved, achieving stable connection and sealing effect of cylinder head, and ensuring safe operation of gas compressor.

CN224550311UActive Publication Date: 2026-07-24DAYE SANHUAN ELECTRIC APPLIANCE FACTORY
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Patent Information

Application Number
CN202522109950.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-07-24
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

The cylinder head fixing structure of existing gas compressors is prone to loosening due to the attenuation of friction of the threaded pair under high-frequency vibration environment, leading to sealing failure and safety hazards.

Method used

The threaded connection is combined with a sealing gasket and an anti-slip ring. The anti-slip ring generates a mechanical self-locking effect, which enhances the anti-loosening ability of the threaded connection. The diagonal brace and double convex surface structure improve the stability and durability of the seal.

Benefits of technology

Under high-frequency vibration and high-pressure conditions, it ensures the long-term stability and sealing integrity of the cylinder head fixing structure, prevents leakage of high-pressure gas and lubricating oil, and improves the reliability and durability of the connection.

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Abstract

The utility model provides a cylinder cover fixing structure of a gas compressor, which relates to the technical field of gas compressors and comprises a screw rod, two ends of the screw rod are respectively provided with a first thread and a second thread, the first thread is in threaded connection with a nut, and a sealing rubber mat is arranged on the screw rod between the first thread and the second thread. The sealing rubber mat is embedded in the supporting ring, and the supporting ring is arranged in the anti-skid ring in a sleeved mode. Reliable static sealing is achieved through threaded connection and the middle pad, leakage of high-pressure gas and lubricating oil is effectively prevented, and the anti-loosening capacity of threaded connection is greatly enhanced through the mechanical self-locking effect generated by the anti-skid ring. Therefore, the whole cylinder cover fixing structure can keep the connection stability and the sealing integrity for a long time under the continuous high-frequency vibration and high-pressure working conditions of the compressor.
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