Clamp of pipe hydrostatic testing machine

Abstract

The invention relates to the technical field of pipe pressure measurement, in particular to a clamp of a pipe hydrostatic testing machine, which comprises a first clamp body, a second clamp body and a liquid inlet pipe, the first clamp body is arranged at one end of a pipe, and the second clamp body is arranged at the other end of the pipe; the first clamp body and the second clamp body each comprise a main body and a clamping sealing assembly, a containing groove for containing a pipe is formed in each main body, and the cross section of each containing groove is larger than that of the pipe. The clamping and sealing assembly is arranged on the main body and abuts against the pipe. And the liquid inlet pipe is arranged on the main body of the first clamp body and is communicated with a pipe. The effect of widening the application range of the clamp is achieved.

Description

technical field [0001] The present application relates to the technical field of pipe pressure measurement, in particular to a fixture of a pipe hydrostatic testing machine. Background technique [0002] The pipe hydrostatic test is used to determine the pressure-resistant failure time or the maximum pressure value of instantaneous blasting of various pipes such as thermoplastic pipes, composite pipes and aluminum-plastic composite pipes under long-term constant internal pressure and constant temperature. important experiment. [0003] At present, the Chinese patent with the publication number CN104931340A discloses a sealing fixture for the hydrostatic test of pipe materials. The sealing fixture includes a front end plug, a rear end plug, a pull rod and a sealing ring. hole and a pipe threaded hole; flange holes are provided around the front and rear plugs, and independent grooves are provided on the inner wall; sealing rings are embedded in the independent grooves; the ti...

AI Technical Summary

Problems solved by technology

[0004] In the process of implementing the present application, the inventors found that there are at least the following problems in this technology: in order to reduce the phenomenon of medium water leakage, the inner wall of the front end plugging and the inner wall of the rear end plugging will interfere with the side wall of the pipe; therefore, when the diameter of the pipe occurs When changing, it is necessary to replace the front-end plug and the rear-end plug, resulting in a relatively low scope of application of the fixture

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