Pipe fitting sealing property testing device

A testing device and sealing technology, which are used in liquid/vacuum measurement for liquid tightness, and by measuring the acceleration and deceleration rates of fluids, etc., can solve the problems of complicated operation process, troublesome installation of pipe fittings, uneven end surface of pipe fittings, etc. To achieve the effect of strengthening the sealing effect, improving the sealing effect, and the overall structure is reasonable

Inactive Publication Date: 2015-12-30
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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Examples

Experimental program
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Effect test

Embodiment 1

[0040] Embodiment 1: as Figure 1 to Figure 5 In the shown embodiment, a pipe fitting tightness testing device 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, a main end cover 4, The auxiliary end cover 5, the main end cover and the auxiliary end cover are parallel to each other, the main frame is provided with a pipe fitting support frame 6 for supporting the measured pipe fittings, and two push plate cylinders are respectively arranged on the two side frames 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 pad 7 of the pipe end of the pipe fitting, the surface of the side of the auxiliary end cover close to the pipe fitting support frame is provided with an auxiliary elastic sealing ring plate 8 for contacting the pipe ...

Embodiment 2

[0044] Embodiment 2: as Figure 6 to Figure 8 In the shown embodiment, a pipe fitting tightness testing device 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 pipe to be tested, and two push plate cylinders are respectively arranged on the two side frames, one of which push plate The piston rod of the 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. The surface of the main end cover close to the pipe support frame is provided with a main spring for contacting the pipe end of the measured pipe. Sealing ring gasket 7, the surface of the auxiliary end cover near the side of the pipe fitting support frame is prov...

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 pipe fitting sealing property testing device and aims at achieving the effects that the pipe fitting sealing property testing device is convenient to operate, high in testing result accuracy and capable of guaranteeing that the two pipe ends of a pipe fitting are not prone to being damaged due to clamping. The device comprises an air feed pump, a baroceptor, a main rack, two push plate air cylinders, two side racks, a main end cover and a subsidiary end cover, the two push plate air cylinders are arranged on the two side racks respectively, a piston rod of one of the push plate air cylinders is connected with the main end cover, a piston rod of the other push plate air cylinder is connected with the subsidiary end cover, a main elastic sealing ring pad is arranged on the main end cover, a subsidiary elastic sealing ring plate is arranged on the subsidiary end cover, and a main cover air hole is formed in the main end cover. The pipe fitting sealing property testing device has the advantages that the pipe fitting can be positioned to the right position, the sealing property can be guaranteed, and the pipe fitting is not damaged due to clamping; the device is provided with a sealing structure which can be adjusted in a self-adaptation mode, and the sealing effect in the high pressure testing process can be intensified; the device is provided with an assistant positioning structure, the end covers can be prevented from moving backward, the push plate air cylinders can be protected, the sealing effect can be improved, and stability in the testing process can be maintained.

Description

technical field [0001] The invention belongs to the technical field of airtightness testing of pipe fittings, in particular to a device for testing the 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 end) for...

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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