Portable pressure calibration tool

By adopting a combined structure of ejection assembly and sealing ring in the portable pressure calibration tool, the problem of reduced pressurization effect caused by wear of piston or inner cylinder is solved, achieving more efficient calibration detection and longer service life.

CN222671301UActive Publication Date: 2025-03-25SHENZHEN SHUOSU TECH CO LTD
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Patent Information

Application Number
CN202421539611.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2025-03-25
Estimated Expiration
2034-07-02

AI Technical Summary

Technical Problem

When using a portable pressure calibration tool, the piston or inner cylinder is prone to wear, resulting in a reduced pressure effect and affecting the effect of subsequent calibration detection.

Method used

A portable pressure calibration tool is designed, using a combination of ejection assembly and sealing ring to slow down the wear of the piston through the structure of the spring rod and the top ring, and provides a quick way to disassemble the sealing cylinder and sealing ring, so as to facilitate replacement of the worn sealing ring.

Benefits of technology

It effectively slows down the wear speed of the piston, extends the service life of the piston, and improves the pressurization effect and calibration detection accuracy, which facilitates subsequent seal ring replacement and maintenance.

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Abstract

The utility model discloses a portable pressure calibration tool, relates to the calibration tool field, the portable pressure calibration tool comprises a pressure gauge main body and a boost housing, the boost housing is internally provided with an inner cylinder, the inner cylinder is internally provided with a pop-up assembly, and the pop-up assembly comprises a positioning groove arranged in the inner wall of the inner cylinder and an annular cavity arranged in the inner cylinder. Due to the fact that the pop-up assembly is arranged, the outer wall of the piston is attached to the inner wall of the sealing ring, the abrasion speed of the piston can be reduced through the arrangement of the sealing ring, the situation that the piston continuously moves upwards to cause serious abrasion, and then the pressurization effect is affected is avoided, the service life of the piston is prolonged, and when the sealing ring is abraded and needs to be replaced, the sealing ring can be replaced conveniently. A user can rotate the limiting bolt firstly, so that the limiting bolt moves out of the cavity and does not limit the sealing cylinder any more, the spring rod extends to push the top ring to move upwards, the top ring can push the sealing cylinder to move upwards, and then the user can take out the sealing cylinder so as to replace the sealing cylinder.
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