Pipeline air leakage detection device

Abstract

The utility model discloses a pipeline air leakage detection device, and belongs to the technical field of pipeline air tightness detection. Comprising an inspection pipe body provided with an air leakage detector. The communication pressure pipe fitting is provided with a control valve and is fixedly communicated with one side of the inspection pipe body; the double-head piston part is arranged in the communicating pressure pipe fitting in a sliding fit mode; and the inflatable air rings are fixedly connected in the two grooves of the inspection pipe body in a symmetrical structure and are fixedly communicated with the communication pressure pipe fitting. According to the invention, the double-headed piston piece is used for limiting and drawing, so that the air ring can be filled with air in the communication pressure pipe fitting, the air ring is expanded and wraps the outside of the to-be-detected air delivery pipe, the air tightness of the connection between the inspection pipe body and the air delivery pipe is guaranteed, and the service life of the inspection pipe body and the air delivery pipe is guaranteed; and redundant gas in the inspection pipe body can be sucked, so that the rapid detection of the inspection pipe body on leaked gas is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline air tightness detection, and more specifically, to a pipeline leakage detection device. Background Art

[0002] As a transmission object that can transport gas and liquid structures, the sealing of the pipeline connection is particularly important. In order to ensure good sealing after the pipeline is connected, it is necessary to perform airtightness testing on the pipeline connection to ensure the safe transportation of gas and liquid substances.

[0003] The document with the prior art disclosure (announcement) number CN221991582U provides a pipeline leakage detection device. In the related technology of the device, the teeth are clamped by a positioning rod to prevent the tension wheel from rotating, so that the pipeline can be connected to the connecting pipe. By adjusting the rope and the adjusting part, pipelines of different sizes can be connected to the connecting pipe through a flexible connecting sleeve, so that it can adapt to pipelines of different sizes, making it easier to carry the pipeline leakage detection device, avoiding inconvenience for the repairer to carry it, and thus improving the maintenance efficiency.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when the adjustment rope is repeatedly tightened to tightly press the flexible connecting sleeve onto the outside of the pipeline to be inspected, it is easy to cause marks on the flexible connecting sleeve, thereby affecting the service life of the flexible connecting sleeve and causing the sealing performance to be reduced.

[0005] In view of this, we propose a pipeline leakage detection device. Utility Model Content

[0006] In order to improve the problems raised in the above background technology, the present application provides a pipeline leakage detection device.

[0007] The pipeline gas leakage detection device provided in this application adopts the following technical solution:

[0008] A pipeline gas leakage detection device, comprising:

[0009] An inspection tube body equipped with a gas leak detector;

[0010] A connecting pressure pipe with a control valve is installed and fixedly connected to one side of the inspection pipe body;

[0011] A double-headed piston member is slidably fitted into the interior of the communicating pressure pipe member;

[0012] The inflatable air ring is fixedly connected in two grooves of the inspection pipe body in a symmetrical structure and is fixedly communicated with the communicating pressure pipe fitting.

[0013] By adopting the above technical solution and utilizing the double-headed piston to limit the movement, the gas in the connected pressure pipe can be filled into the air ring, so that the air ring expands and wraps around the outside of the gas pipe to be inspected, thereby ensuring the airtightness of the connection between the inspection tube body and the gas pipe and ensuring its service life. When the internal air pressure of the connected pressure pipe is transferred, the excess gas inside the inspection tube body can be sucked out, thereby improving the rapid detection of leaked gas by the inspection tube body.

[0014] As an optional solution to the technical solution of this application document, the inspection tube body is symmetrically structured with two compression rings installed on the outside, a rubber sleeve is sleeved inside the compression ring, and an elastic Velcro is fixedly connected to the outside of the rubber sleeve.

[0015] By adopting the above technical solution and utilizing the assembled connection between the compression ring and the rubber sleeve, not only can the old rubber sleeve be quickly replaced and the sealing of the connection between the compression ring and the inspection tube body be ensured, but the rubber sleeve can also be tightly wrapped around the outside of the gas pipe under the connection of the elastic Velcro, further ensuring the sealing of the connection between the inspection tube body and the gas pipe.

[0016] As an optional solution of the technical solution of this application document, two blocking rings are fixedly connected inside the communicating pressure pipe, and a spring member is provided between the blocking ring and the communicating pressure pipe.

[0017] By adopting the above technical solution, the position of the double-headed piston member can be limited by the blocking ring, ensuring that the double-headed piston member has a stable reset and suction effect under the elastic support of the spring member.

[0018] As an optional solution to the technical solution of this application document, a hook plate is rotatably connected to the middle part of the double-headed piston component, and the hook plate can be hooked and limited with the connecting pressure pipe component.

[0019] By adopting the above technical solution, the position of the double-headed piston member is limited by the limited rotation of the hook plate and the connecting pressure pipe, thereby ensuring the suction limit of the double-headed piston member and achieving airtight operation.

[0020] As an optional solution to the technical solution of this application document, the linear equidistant structure on the inner wall of the balloon is fixedly connected with a plurality of annular gaskets.

[0021] By adopting the above technical solution, multiple annular gaskets are used to closely fit the outer wall of the gas pipe under the action of the balloon expansion, and multiple sealing interceptions are performed to improve the sealing effect between the balloon and the gas pipe.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This application utilizes a double-headed piston to limit the movement, so that the gas in the connected pressure pipe can be filled into the air ring, so that the air ring expands and wraps around the outside of the gas pipe to be inspected, thereby ensuring the airtightness of the connection between the inspection tube body and the gas pipe and ensuring its service life. When the internal air pressure of the connected pressure pipe is transferred, the excess gas inside the inspection tube body can be sucked out, thereby improving the rapid detection of gas leakage by the inspection tube body.

[0024] 2. This application utilizes a matching connection between a compression ring and a rubber sleeve, which not only enables quick replacement of old rubber sleeves and ensures the sealing of the connection between the compression ring and the inspection tube body, but also enables the rubber sleeve to be tightly wrapped around the outside of the gas pipe under the connection of the elastic Velcro, further ensuring the sealing of the connection between the inspection tube body and the gas pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a pipeline gas leakage detection device disclosed in a preferred embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the structure of a compression ring of a pipeline gas leakage detection device disclosed in a preferred embodiment of the present application;

[0027] Figure 3 This is a partial structural diagram of a pipeline gas leakage detection device disclosed in a preferred embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the air ring structure of a pipeline leakage detection device disclosed in a preferred embodiment of the present application;

[0029] Explanation of the numbers in the figure: 1. Inspection tube body; 2. Pressure pipe fitting; 3. Double-headed piston fitting; 4. Air ring; 11. Pressing ring; 12. Rubber sleeve; 13. Elastic Velcro; 21. Blocking ring; 22. Spring fitting; 31. Hook plate; 41. Ring gasket. DETAILED DESCRIPTION

[0030] The present application is further described in detail below with reference to the accompanying drawings.

[0031] Reference Figure 1-4 A pipeline gas leakage detection device in the embodiment of the present application includes:

[0032] An inspection tube body 1 equipped with a gas leak detector;

[0033] A connecting pressure pipe fitting 2 equipped with a control valve is fixedly connected to one side of the inspection pipe body 1;

[0034] A double-headed piston member 3 is slidably fitted inside the communicating pressure pipe member 2;

[0035] The expandable air ring 4 is fixedly connected in two grooves of the inspection tube body 1 in a symmetrical structure and is fixedly connected with the connecting pressure pipe 2.

[0036] The pipeline leakage detection device can fill the gas in the connecting pressure pipe 2 into the air ring 4 by using the double-headed piston 3 to limit the pulling, so that the air ring 4 expands and wraps around the outside of the gas pipeline to be detected, thereby ensuring the airtightness of the connection between the inspection tube body 1 and the gas pipeline and ensuring its service life. When the internal air pressure of the connecting pressure pipe 2 is transferred, the excess gas in the inspection tube body 1 can be sucked out, thereby improving the rapid detection of gas leakage by the inspection tube body 1.

[0037] Reference Figure 2 and Figure 1 In the pipeline leakage detection device recorded in the embodiment of the present application, the inspection tube body 1 is symmetrically structured and has two pressing rings 11 installed on the outside. A rubber sleeve 12 is sleeved inside the pressing ring 11, and an elastic Velcro 13 is fixedly connected to the outside of the rubber sleeve 12.

[0038] The pipeline leakage detection device utilizes the assembled connection between the compression ring 11 and the rubber sleeve 12, which not only enables the rapid replacement of the old rubber sleeve 12 and ensures the sealing of the connection between the compression ring 11 and the inspection tube body 1, but also enables the rubber sleeve 12 to be tightly wrapped around the outside of the gas pipe under the connection of the elastic Velcro 13, further ensuring the sealing of the connection between the inspection tube body 1 and the gas pipe.

[0039] Reference Figure 3 and Figure 1 In the pipeline gas leakage detection device described in the embodiment of the present application, two blocking rings 21 are fixedly connected to the inside of the connecting pressure pipe 2, and a spring member 22 is provided between the blocking ring 21 and the connecting pressure pipe 2.

[0040] The pipeline gas leakage detection device can limit the position of the double-headed piston member 3 by utilizing the blocking ring 21, thereby ensuring that the double-headed piston member 3 has a stable reset and suction effect under the elastic support of the spring member 22.

[0041] Reference Figure 3 and Figure 1 In the pipeline leakage detection device recorded in the embodiment of the present application, the middle part of the double-headed piston member 3 is rotatably connected to a hook plate 31, and the hook plate 31 can be hung and limited with the connecting pressure pipe member 2.

[0042] The pipeline leakage detection device limits the position of the double-headed piston member 3 by utilizing the limited rotation of the hook plate 31 and the connection limit of the pressure pipe 2, thereby ensuring the suction limit of the double-headed piston member 3 and achieving airtight operation.

[0043] Reference Figure 4 and Figure 1In the pipeline leakage detection device described in the embodiment of the present application, a plurality of annular gaskets 41 are fixedly connected to the linear equidistant structure of the inner wall of the air ring 4.

[0044] The pipeline gas leakage detection device utilizes multiple annular gaskets 41 to closely fit the outer wall of the gas pipeline under the expansion action of the balloon 4, performs multiple sealing interceptions, and improves the sealing effect between the balloon 4 and the gas pipeline.

[0045] Working principle: When the device is placed on the outside of the gas pipeline to be inspected for air tightness testing, first place the inspection tube body 1 on the outside of the gas pipeline, and tightly connect the rubber sleeve 12 to the surface of the gas pipeline through the elastic Velcro 13;

[0046] Next, manually press the double-headed piston 3 to fill the gas in the pressure pipe 2 into the air ring 4, so that the expanded air ring 4 wraps around the outside of the gas pipe to seal it. When the double-headed piston 3 moves, it also sucks out the excess gas in the inspection pipe body 1;

[0047] When the hook plate 31 and the pressure pipe 2 are hooked and limited, and the position of the double-headed piston 3 is fixed, the changes in the instrument indication of the pipe body 1 can be observed and checked.

Claims

1. A pipeline leakage detection device, characterized in that: include: An inspection tube body (1) equipped with a gas leak detector; A connecting pressure pipe (2) equipped with a control valve is fixedly connected to one side of the inspection pipe body (1); A double-headed piston member (3) is slidably fitted inside the communicating pressure pipe member (2); The expandable air ring (4) is fixedly connected in two grooves of the inspection tube body (1) in a symmetrical structure and is fixedly connected to the connecting pressure pipe (2).

2. The pipeline gas leakage detection device according to claim 1, characterized in that: The inspection tube body (1) is symmetrically structured with two pressing rings (11) installed on the outside. A rubber sleeve (12) is sleeved inside the pressing ring (11). The rubber sleeve (12) is fixedly connected to the outside of the rubber sleeve (12) with an elastic Velcro (13).

3. The pipeline gas leakage detection device according to claim 1, characterized in that: Two blocking rings (21) are fixedly connected inside the communicating pressure pipe (2), and a spring member (22) is provided between the blocking rings (21) and the communicating pressure pipe (2).

4. The pipeline gas leakage detection device according to claim 1, characterized in that: The middle part of the double-headed piston member (3) is rotatably connected to a hook plate (31), and the hook plate (31) can be hooked and limited with the communicating pressure pipe member (2).

5. The pipeline gas leakage detection device according to claim 1, characterized in that: The inner wall of the air ring (4) is fixedly connected to a plurality of annular gaskets (41) in a linear, equidistant structure.

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