Device for testing internal sealing property of piping

A technology for sealing detection and pipe fittings, which is applied in the use of liquid/vacuum for liquid tightness measurement, and by measuring the acceleration and deceleration rates of fluids, etc., which can solve the problems of pipe fitting deformation, troublesome pipe fitting installation, and uneven end face of pipe fittings. Guarantee the effect of sealing and reasonable overall structure

Inactive Publication Date: 2016-01-27
宁波新合博园林机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned test method has the following disadvantages: 1. The operation process is complicated, and the weight of the frame is relatively heavy. It is necessary to immerse the frame in water with the help of external equipment, and the installation of the pipe fittings is also relatively troublesome; 2. Use a jack to press down the plate to seal the pipe fittings And when the sealing ring is placed outside the two ends of the pipe fitting and clamped by the hydraulic cylinder to seal at both ends of the pipe fitting, the strength of both is difficult to control. If the forc

Method used

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  • Device for testing internal sealing property of piping
  • Device for testing internal sealing property of piping
  • Device for testing internal sealing property of piping

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Effect test

Embodiment 1

[0040] Embodiment 1: as Figure 1 to Figure 5 In the shown embodiment, a device for detecting the internal tightness of pipe fittings includes an air supply pump, an air pressure sensor 14, a main frame 1, two push plate cylinders 2, two side frames 3 with opposite inner surfaces, and a main end cover 4 , auxiliary end cover 5, described main end cover and auxiliary end cover are parallel to each other, described main frame is provided with the pipe fitting supporting frame 6 that is used to support tested pipe fitting, two push plate cylinders are respectively located at two side machine On the frame, the piston rod of one of the push pedal cylinders is connected to the main end cover, and the piston rod of the other push pedal cylinder is connected to the auxiliary end cover. The main elastic sealing ring gasket 7 of the pipe end of the pipe under test, the surface of the auxiliary end cover close to the pipe support frame is provided with an auxiliary elastic sealing ring p...

Embodiment 2

[0044] Embodiment 2: as Figure 6 to Figure 8In the shown embodiment, a device for detecting internal airtightness of pipe fittings includes an air supply pump 13, an air pressure sensor, a main frame, two push plate cylinders, two side frames with opposite inner surfaces, a main end cover, and a secondary end cover , the main end cover and the auxiliary end cover are parallel to each other, the main frame is provided with a pipe support frame for supporting the tested pipe, and two push plate cylinders are respectively arranged on the two side frames, one of which pushes The piston rod of the plate cylinder is connected to the main end cover, and the piston rod of the other push plate cylinder is connected to the auxiliary end cover. Elastic sealing ring pad 7, the surface of the auxiliary end cover near the side of the pipe fitting support frame is provided with an auxiliary elastic sealing ring plate 8 for contacting the pipe end of the measured pipe fitting, and the main e...

Embodiment 3

[0052] Embodiment 3: the basic structure and implementation mode of this embodiment are the same as embodiment 2, and its difference is, as Figure 9 to Figure 12 As shown in: It also includes two anti-retraction cylinders 31, one of which is fixed on the main end cover through an anti-retraction bracket 32, and the other anti-retraction cylinder is fixed on the secondary end cover through an anti-retraction bracket , the anti-retraction cylinder is provided with a push plate piston 33 that can slide up and down in the anti-retraction cylinder, the described push plate piston is connected with the inner end of a disc piston rod 34, and the outer end of the disc piston rod is provided with There is a suction cup 35, and the described connecting disk piston rod is vertical, and the described pushing disk piston divides the anti-retraction cylinder where it is located into an air chamber 36 and an active chamber 37, and the described inflatable chamber is connected with an anti-re...

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Abstract

The invention discloses a device for testing the internal sealing property of a piping and aims to provide the device which is convenient for operation, provides high-accuracy testing results, and ensures that an end of the piping cannot be easily damaged by clamping. The device comprises an air supplying pump, an air pressure sensor, a main machine support, two push plate cylinders, two side machine supports, a main end cap, and an auxiliary end cap. The two push plate cylinders are arranged on the two side machine supports respectively. A piston rod of one of the push plate cylinders is connected with the main end cap, and a piston rod of the other push plate cylinder is connected with the auxiliary end cap. A main elastic sealing ring pad is arranged on the main end cap. An auxiliary elastic sealing ring pad is arranged on the auxiliary end cap. The main end cap is provided with a main cap vent. The device can precisely position a piping, ensures sealing property without damaging the piping through clamping, has an adaptive sealing structure, can reinforce the sealing effect during high-pressure testing, has an auxiliary positioning structure, can avoid end cap retreat and protect the push plate cylinders, is improved in sealing effect, and maintains the stability of the testing process.

Description

technical field [0001] The invention belongs to the technical field of airtightness testing of pipe fittings, in particular to a device for detecting the inner airtightness of pipe fittings. Background technique [0002] Pipe fittings (pipes) of various materials are often used to transport various gases and liquids. Gas or liquid flows in pipe fittings. Pipe fittings have different sealing requirements when used in different occasions. Generally speaking, pipe fittings with sealing requirements are used in Leakage testing is required before leaving the factory, otherwise there will be greater safety hazards. [0003] In the prior art, when testing pipe fittings, gaskets or sealing rings are usually placed on the outside of both ends of the pipe fittings, and at the same time, force-applying devices such as jacks or hydraulic cylinders are used to clamp the two ends of the pipe fittings, so that the two ends of the gasket or sealing ring and the pipe fittings The end (pipe ...

Claims

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Application Information

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IPC IPC(8): G01M3/28
Inventor 金建丰赵文敏
Owner 宁波新合博园林机械有限公司
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