Leaking stopper for pressure pipeline test

Abstract

The utility model belongs to the technical field of pipeline leakage stoppers, and particularly relates to a leakage stopper for pressure pipeline testing, which comprises a leakage stoppage snap ring (1) and a diameter adaptation structure arranged inside the leakage stoppage snap ring (1). The diameter adaptation structure comprises two arc plates (2) arranged in the leaking stoppage clamping ring (1) in a sleeved mode, and the two arc plates (2) are evenly distributed in the leaking stoppage clamping ring (1). According to the leak stopper for the pressure pipeline test, recovery expansion of the high-pressure nitrogen (4) and the elastic rubber body (6) can be utilized to adapt to the diameter of a pipeline, operation of people is not needed, the supporting strength can be effectively improved through the double-supporting effect of the high-pressure nitrogen (4) and the elastic rubber body (6), compared with an existing leak stopper, the leak stopper can support the pipeline in a high-stability mode, and the leak stopper is convenient to use. Manual operation of people is not needed, the application range is widened, product popularization is facilitated, and selection and use of people are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline leak plugging devices, and specifically relates to a leak plugging device for pressure pipeline testing. Background Art

[0002] A pipeline plugger is a device used to plug pipeline leaks, usually made of metal or rubber. Its function is to quickly plug the leaking part when a pipeline leaks, prevent the medium from flowing out, and ensure the normal operation of the pipeline. When testing pressure pipelines, it is necessary to use a plugger to plug the seams for protection.

[0003] Different models of pressure pipes have different diameters. To ensure that the plugging device can adapt to pressure pipes of different diameters, an adaptation structure is generally set inside the existing plugging device to adapt to the diameter of the pipe. The existing adaptation structures are roughly divided into two types:

[0004] 1. For example, a pressure pipe plugger proposed in the patent with the authorization announcement number CN218780943U, in which the spring is used as an adaptive element, and the elasticity of the spring can drive the arc plate to fit on the pipe surface, thereby completing the adaptive plugging of pipes with different diameters. The advantage of this method is that it does not require manual adjustment, but the strength is not enough to support the pipe well;

[0005] 2. For example, the patent with the authorization announcement number CN219841229U proposes a leak plugging device for pressure pipes. The application uses a screw-type driving rod to drive the arc plate to fit on the pipe surface, thereby completing the adaptive plugging of pipes with different diameters. The advantage of this method is that the supporting strength is sufficient, but it still requires manual operation, which is troublesome;

[0006] The two adaptive structures have their own effects, but each has its own defects, and the scope of application is poor, which is not conducive to the promotion of leak plugging devices. Utility Model Content

[0007] The purpose of this utility model is to provide a leak plugger for testing a pressure pipeline, which can support the pipeline with high stability and is an adaptive pipeline diameter leak plugger that does not require manual operation by people, thereby increasing the scope of application, facilitating product promotion, and facilitating people's selection and use.

[0008] The technical solutions adopted in this utility are as follows:

[0009] A leak stopper for testing a pressure pipeline, comprising a leak stopper ring and a diameter adaptation structure, wherein the diameter adaptation structure is arranged inside the leak stopper ring;

[0010] The diameter adaptation structure includes an arc plate sleeved inside the leak-plugging clamp, the number of the arc plates is two and they are evenly distributed inside the leak-plugging clamp, a bin body is opened inside the leak-plugging clamp, the inside of the bin body is filled with high-pressure nitrogen, a transmission rod is fixedly connected to the inside of the bin body, one end of the transmission rod is located inside the bin body and the other extends out of the bin body and is fixedly connected to the arc plate, and one end of the transmission rod located inside the bin body is fixedly connected to an elastic colloid.

[0011] One end of the transmission rod located inside the warehouse body is T-shaped.

[0012] The technical effects achieved by this utility model are:

[0013] This practical leak plugging device for pressure pipeline testing can adapt to the pipeline diameter by utilizing the recovery expansion of high-pressure nitrogen and elastic colloid without human operation, and the dual support effect of high-pressure nitrogen and elastic colloid can effectively increase the support strength. Compared with the existing leak plugging devices, this device can support the pipeline with high stability without manual operation, thereby increasing the scope of application, facilitating product promotion, and facilitating people's selection and use.

[0014] The practical leak stopper for testing a pressure pipeline can prevent a transmission rod from being separated from a bin body by utilizing a T-shaped clamping effect, while increasing the blocking effect on high-pressure nitrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a practical Figure 1 A cross-sectional view of

[0017] Figure 3 This is a practical Figure 2 A is an enlarged view of the middle image.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Leak-proof snap ring; 2. Arc plate; 3. Bin body; 4. High-pressure nitrogen; 5. Transmission rod; 6. Elastic colloid; 7. Sealing ring; 8. Anti-skid layer; 9. High-pressure resistant spring. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0021] like Figures 1 to 3As shown, a leak plugging device for testing a pressure pipeline comprises a leak plugging clamp 1 and a diameter adaptation structure. The leak plugging clamp 1 is a clamp-type leak plugging device commonly used in the market for testing pressure pipelines. The leak plugging clamp 1 is divided into two upper and lower half rings, and the two half rings are connected by screws. The diameter adaptation structure is arranged inside the leak plugging clamp 1. The diameter adaptation structure can adapt to the pipe diameter inside the leak plugging clamp 1, so as to meet the use of pipes with different diameters and increase the scope of use.

[0022] The diameter adaptation structure includes an arc plate 2 sleeved inside the plugging clamp 1. The number of the arc plates 2 is two and they are evenly distributed inside the plugging clamp 1. The arc plate 2 is a structure that is in direct contact with the pipeline and can be tightly attached to the surface of the pipeline. A bin body 3 is opened inside the plugging clamp 1. When producing the plugging clamp 1, a groove can be opened on the surface. After the other components are installed and the nitrogen is filled, a cover plate can be welded on the groove to form a bin body 3. The inside of the bin body 3 is filled with high-pressure nitrogen 4. The high-pressure nitrogen 4 is the main element for supporting the pipeline. The expansion effect of the high-pressure gas can be used to apply a certain strength of support force to the pipeline, thereby ensuring the stability of the pipeline. As for the expansion force of the high-pressure nitrogen 4, it is related to the pressure of the high-pressure nitrogen 4. It only needs to be filled with a sufficient amount of high-pressure nitrogen 4 to ensure that the pressure is sufficient, thereby achieving sufficient expansion force. The bin body 3 is the bearing space of the high-pressure nitrogen 4, which can be used to store and concentrate the high-pressure nitrogen 4. The plugging clamp 1 in this application During production, it is necessary to use high-pressure resistant materials to prevent the high-pressure nitrogen 4 from damaging the leak-proof snap ring 1. A transmission rod 5 is fixedly connected to the interior of the warehouse body 3. One end of the transmission rod 5 is located inside the warehouse body 3 and the other extends out of the warehouse body 3 and is fixedly connected to the arc plate 2. The transmission rod 5 is an important component for supporting force transmission, which can transmit the supporting force generated by the expansion of the high-pressure nitrogen 4 to the arc plate 2. The high-pressure nitrogen 4 is located between the warehouse body 3 and the transmission rod 5, so that it can directly contact the transmission rod 5, and can well transmit the supporting force to the transmission rod 5. The transmission rod 5 is fixedly connected to an elastic colloid 6 at one end of the warehouse body 3, and the elastic colloid 6 is fixedly connected to the inner wall of the warehouse body 3. The elastic colloid 6 is the second support driving component. The recovery of the elastic colloid 6 after being compressed can generate a secondary supporting force, thereby enhancing the support stability. The elastic colloid 6 can be specifically made of a high-pressure resistant elastic material, and specifically synthetic rubber, polyester fiber, silicone rubber, etc. can be selected to prevent the elastic colloid 6 from being easily damaged by the high-pressure nitrogen 4.

[0023] like Figure 3 As shown, one end of the transmission rod 5 located inside the silo 3 is T-shaped. The T-shaped clamping effect can prevent the transmission rod 5 from being separated from the silo 3, while increasing the blocking effect on the high-pressure nitrogen 4.

[0024] like Figure 3As shown, a sealing ring 7 is fixedly connected to the surface of one end of the transmission rod 5 inside the bin body 3. The sealing ring 7 fits closely with the bin body 3. The sealing ring 7 can be used to increase the sealing degree and effectively prevent leakage of the high-pressure nitrogen 4.

[0025] like Figure 1 As shown, the arc plate 2 is fixedly connected to the side away from the transmission rod 5 with an anti-skid layer 8, and the anti-skid layer 8 fits the pipeline. The anti-skid layer 8 can effectively increase the friction force and prevent the device from sliding on the surface of the pipeline.

[0026] like Figure 2 As shown, there are several bin bodies 3, high-pressure nitrogen 4, transmission rods 5 and elastic colloids 6, which are evenly distributed on the inner wall of the leak-proof clamping ring 1. By using multiple groups of structures, the arc plate 2 can be supported from multiple directions, thereby ensuring the uniform distribution of the supporting effect.

[0027] like Figure 3 As shown, the surface of the elastic colloid 6 is sleeved with a high-pressure resistant spring 9, which is made of high-strength steel. The high-pressure resistant spring 9 is fixedly connected to the bin body 3 and the transmission rod 5. The restoring force of the high-pressure resistant spring 9 after being compressed can be used to strengthen the supporting force, thereby further enhancing the supporting effect.

[0028] The working principle of the utility model is as follows: when in use, after the leak-stopping clamp 1 is clamped on the pipe body, the diameter of the pipe body will squeeze the arc plate 2, and then the arc plate 2 will drive the transmission rod 5 to slide inside the warehouse body 3, thereby squeezing the high-pressure nitrogen 4 and the elastic colloid 6 through the transmission rod 5, and the squeezed high-pressure nitrogen 4 and elastic colloid 6 will recover and expand, thereby pressurizing the arc plate 2 in the reverse direction, so that the arc plate 2 can be tightly fitted on the surface of the pipe, and stable support can be achieved. In the whole process, people only need to operate the leak-stopping clamp 1, and there is no need to operate the diameter adaptation structure, which can simplify the operation process, increase the scope of application, facilitate product promotion, and facilitate people's selection and use.

[0029] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. Leak plugging device for pressure pipeline testing, characterized by: It comprises a leak-proof snap ring (1) and a diameter adaptation structure, wherein the diameter adaptation structure is arranged inside the leak-proof snap ring (1); The diameter adaptation structure comprises an arc plate (2) sleeved inside the leak-blocking clamp (1); the number of the arc plates (2) is two and they are evenly distributed inside the leak-blocking clamp (1); a bin (3) is provided inside the leak-blocking clamp (1); the bin (3) is filled with high-pressure nitrogen (4); a transmission rod (5) is fixedly connected inside the bin (3); one end of the transmission rod (5) is located inside the bin (3) and the other end extends out of the bin (3) and is fixedly connected to the arc plate (2); and one end of the transmission rod (5) located inside the bin (3) is fixedly connected to an elastic colloid (6).

2. The leak stopper for pressure pipeline testing according to claim 1 is characterized in that: One end of the transmission rod (5) located inside the warehouse body (3) is T-shaped.

3. The leak stopper for pressure pipeline testing according to claim 1 is characterized in that: A sealing ring (7) is fixedly connected to the surface of one end of the transmission rod (5) located inside the warehouse body (3), and the sealing ring (7) is in close contact with the warehouse body (3).

4. The leak stopper for pressure pipeline testing according to claim 1, characterized in that: A side of the arc plate (2) away from the transmission rod (5) is fixedly connected with an anti-skid layer (8), and the anti-skid layer (8) is in contact with the pipeline.

5. The leak stopper for pressure pipeline testing according to claim 1, characterized in that: The number of the bin body (3), high-pressure nitrogen (4), transmission rod (5) and elastic colloid (6) is several and evenly distributed on the inner wall of the leak-stopping clamp ring (1).

6. The leak stopper for pressure pipeline testing according to claim 1, characterized in that: A high-pressure resistant spring (9) is sleeved on the surface of the elastic colloid (6), and the high-pressure resistant spring (9) is fixedly connected to the bin body (3) and the transmission rod (5).

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