Tension testing device for O-shaped rubber sealing ring

By introducing a servo motor-driven lead screw and protective cover into the O-ring tensile testing device, the problems of difficult replacement and safety hazards when the tensile gauge fails are solved, and convenient replacement and safe operation are achieved.

CN223940525UActive Publication Date: 2026-02-24LUZHOU CHANGJIANG HYDRAULIC SEAL CO LTD
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Patent Information

Application Number
CN202520704662.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-02-24
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

The existing O-ring tensile testing device integrates the tensile gauge with the testing device, which means that the entire device needs to be replaced when it malfunctions, increasing costs. In addition, the lack of protective devices makes it easy to injure workers when the rubber seal breaks.

Method used

A testing device was designed, comprising a servo motor, a lead screw, a threaded block, a mounting block, a threaded rod, and a protective cover. The servo motor drives the lead screw to rotate, thereby moving the threaded block to achieve automatic tensioning. The threaded rod can be rotated to release the locking of the tension gauge for easy replacement. The protective cover covers the pull hook to prevent splashing when the rubber seal breaks.

Benefits of technology

It enables convenient replacement of the force gauge, reduces the cost of use, and improves the safety and ease of operation of the device by using a protective cover to prevent accidental injury to staff.

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Abstract

The utility model relates to the technical field of rubber sealing rings, and discloses an O-shaped rubber sealing ring tension testing device which comprises a base, a mounting groove is formed in the right side of the top of the base, the surface of a lead screw is in threaded connection with a threaded block, and the left end of the top of the threaded block is fixedly connected with a first drag hook. A baffle is fixedly connected to the left side of the top of the base, a tension meter is arranged on the left side of the baffle, a second pull hook is arranged at the right end of the tension meter, a mounting block is fixedly connected to the left side of the top of the base, a threaded rod is in threaded connection with the interior of the mounting block, and a limiting block is fixedly connected to the inner side of the threaded rod. The installation block, the threaded rod and the like are arranged to be matched with the baffle for use, the threaded rod is rotated to drive the limiting block to be separated from the tension meter, locking of the tension meter is relieved, at the moment, a worker can replace the tension meter, operation is easy and convenient, the whole testing device does not need to be replaced, the use cost is reduced, and the worker can use the device conveniently.
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