Tunnel culvert pipe external pressure testing device

Abstract

The invention discloses a tunnel culvert pipe external pressure testing device. The bottom of a parallel sliding seat is arc-shaped and is the same as the outer ring of a pipeline, a threaded ring is fixedly arranged at the joint of lead screw shafts and the interior of the sliding seat, a lead screw shaft is driven to rotate by a motor, and the sliding seat can move to both sides through mutual cooperation of threads of the inner ring of the threaded ring and threads of the outer ring of the lead screw shaft, so that the distance in the parallel sliding seat is enlarged; meanwhile, an isolation box is installed between the parallel lead screw shafts in the sliding seats, a rotating shaft is driven by a motor in the isolation box, and a chuck on the rotating shaft is connected with a wheel disc in the middle of a fixing shaft on a connecting plate fixedly arranged between the isolation box and the inner walls of the sliding seats through a belt; the rotating fixing shaft drives rolling wheels at the bottom to rotate. According to the tunnel culvert pipe external pressure testing device, the rolling wheels are transversely installed, one half of each rolling wheel is located in a sliding seat, the surfaces of the rolling wheels are connected with the outer ring of the pipeline so that the tunnel culvert pipe external pressure testing device can move, and comprehensive pressure checking can be conducted on the pipeline.

Description

technical field [0001] The invention relates to the technical field of pressure testing, in particular to an external pressure testing device for tunnel culvert pipes. Background technique [0002] A pipeline is a device used to transport gas, liquid or fluid with solid particles connected by pipes, pipe connectors and valves. The use of pipelines is usually buried underground, and the pressure on the outer ring of the pipeline increases as the depth of the pipeline is buried. At this time, it is necessary to detect the maximum pressure that the pipeline can withstand, and a pressure test device is needed. However, the previous pressure test device The size of the pipe diameter cannot be adjusted, so it cannot be applied to the pressure test of various specifications of pipes; for this reason, we propose an external pressure test device for tunnel culvert pipes to solve the above problems. Contents of the invention [0003] The purpose of the present invention is to provi...

AI Technical Summary

Problems solved by technology

The use of pipelines is usually buried underground, and the pressure on the outer ring of the pipeline increases as the depth of the pipeline is buried. At this time, it is necessary to detect the maximum pressure that the pipeline can withstand, and a pressure test device is needed. However, the previous pressure test device The size of the pipe diameter cannot be adjusted, so it cannot be applied to the pressure test of various specifications of pipes; for this reason, we propose an external pressure test device for tunnel culvert pipes to solve the above problems

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