Multi-station pipeline detection tool

Abstract

The utility model discloses a multi-station pipeline detection tool which comprises a plurality of detection devices installed on a bottom plate, each detection device comprises limiting blocks installed at ports of the two sides of a pipeline to be detected, the limiting blocks are provided with arc-shaped grooves for limiting the side walls of the pipeline, and the detection devices further comprise inflation air cylinders which are installed on the connector sides of the two ends of the pipeline respectively. The inflation air cylinder is provided with an inflation head, and a first sealing gasket is installed at the contact end, corresponding to the pipeline, of the inflation head. During working, the port side of a to-be-tested pipeline is aligned and fixed with the limiting block, then the corresponding pipe orifice side of the pipeline is aligned and provided with the inflation cylinder, the corresponding inflation head extends to be aligned with the pipe orifice interface side, and the first sealing gasket is in contact with the pipe orifice side of the pipeline, so that the automatic sealing of the pipe orifice side of the pipeline is realized, and the inflation time is limited; detecting an air pressure value in the pipeline in a constant inflation volume state, setting a standard part as a control group, and determining that the air tightness is qualified if the air pressure value is constant in rated time.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline air tightness detection equipment, in particular to a multi-station pipeline detection tool. Background Art

[0002] The principle of airtightness test is to use pressure difference or flow difference to detect the leakage of the object being tested, so as to determine its airtightness performance. The significance of airtightness test is to ensure that the equipment, system or building can effectively prevent gas leakage and energy loss during normal operation, so as to improve its working efficiency and safety. For example: airtightness test in automobile manufacturing is mainly used to evaluate the sealing performance of the car and the air quality in the car. Qualified automobile sealing performance can effectively prevent the intrusion of noise, dust and harmful gases, and improve driving comfort and riding safety.

[0003] The air tightness test involves pipeline detection, which is aimed at the pipeline sealing test process, detecting the sealing of each position of the pipeline to prevent the influence of sand holes and cracks on the quality of the pipeline. Since most pipelines are irregular structures with multiple turns and multiple connection ports, the air tightness test of the pipeline involves multiple sealing components, so the installation of the sealing components at the pipeline structure during the test is a cumbersome process. Therefore, the utility model designs a tooling for pipeline air tightness detection, which is used to efficiently and quickly seal the interface of the pipeline to improve the detection efficiency. Utility Model Content

[0004] The utility model aims to provide a multi-station pipeline detection tool, which is designed for pipeline air tightness detection and is used to efficiently and quickly seal the interface of the pipeline to improve the detection efficiency.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] A multi-station pipeline detection tool, comprising a plurality of detection devices installed on a bottom plate, wherein the plurality of detection devices are connected to the same pressure detection gauge;

[0007] The detection device comprises a limit block installed at the ports on both sides of the pipeline to be tested, and the limit block has an arc groove that limits the side wall of the pipeline;

[0008] The detection device also includes an inflation cylinder, which is respectively installed on the interface sides of both ends of the pipeline. The inflation cylinder has an inflation head, which is telescopically matched with the inflation cylinder. The inflation head is installed with a first sealing gasket corresponding to the contact end of the pipeline.

[0009] Furthermore, a support frame is installed on the high-position interface side of the pipeline corresponding to the bottom plate, and the support frame has a vertical support part and a horizontal support plate, and the inflation cylinder and limit block corresponding to the high-position port side of the pipeline are both installed on the support frame.

[0010] Furthermore, a first cylinder assembly is installed on the limit block corresponding to the low-position interface side of the pipeline, and the output end of the first cylinder assembly has a clamp fixing part, which corresponds to the arc groove, is located above the limit block, and is driven by the first cylinder assembly to complete the lifting and pressing fit.

[0011] The clamp fixing piece is an arc-shaped pipe segment structure, and a rubber pad is installed corresponding to the inner arc surface.

[0012] Furthermore, the bottom plate is equipped with a support block for supporting the middle of the pipeline, the position of the support block corresponds to the position of the branch pipe of the pipeline, and the bottom plate is also equipped with a sealing device for sealing the branch pipe outlet side. The sealing device includes a second cylinder assembly, the second cylinder assembly has a pressure block corresponding to the output end, the pressure block corresponds to the branch pipe outlet side, and the pressure block has a second sealing gasket corresponding to the sealing side.

[0013] The utility model has the following beneficial effects: an inflatable cylinder is installed at both ends of the pipeline to be tested, which is used for bidirectional inflation and deflation, shortening the inflation and deflation time and improving the inflation and deflation efficiency. When working, align the port side of the pipeline to be tested with the limit block and fix it, and then align the inflation cylinder with the corresponding pipe mouth side of the pipeline, and start the inflation cylinders at the same time, and the corresponding inflation head is extended to align with the pipe mouth interface side, and the first sealing gasket is contacted with the pipe mouth side of the pipeline to achieve automatic sealing of the pipe mouth side of the pipeline, and then the pipeline is inflated in both directions, the inflation time is limited, and the air pressure value in the pipeline under the constant inflation state is detected, and a standard part is set as a control group. If the air pressure value is constant within the rated time, the air tightness is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0015] Figure 1 : Schematic diagram of the structure of the detection device of the utility model.

[0016] Figure 2 : Schematic diagram of the structure of the detection device of the utility model.

[0017] Figure 3 : A schematic diagram of the structure in which the detection device of the utility model is installed on a base plate.

[0018] In the accompanying drawings, the list of components represented by each reference numeral is as follows: base plate 1, pipeline 2, limit block 4, arc groove 41, inflation cylinder 3, inflation head 31, first sealing gasket 32, support frame 7, first cylinder assembly 5, clamp fixing 42, rubber pad 43, support block 61, branch pipe 21, second cylinder assembly 6, pressure block 62, second sealing gasket 63. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] like Figure 1-3 As shown: a multi-station pipeline inspection tool, including multiple inspection devices installed on a base plate 1, and the multiple inspection devices are all connected to the same pressure inspection gauge; the inspection device is a combined component, installed on the base plate and arranged in a row, and multiple simultaneous inspections are performed through the same pressure inspection gauge to improve the inspection efficiency, and the base plate used for installation has installation holes of various specifications.

[0021] The detection device includes a limit block 4 installed at the ports on both sides of the pipeline 2 to be tested, and the limit block 4 has an arc groove 41 that limits the side wall of the pipeline 2; the limit block is used to locate the port side of the pipeline and to preliminarily locate the position of the pipeline. The limit block is a block structure with an arc groove that extends along the length direction of the port side of the pipeline and matches the arc wall of the pipeline side wall.

[0022] The detection device also includes an inflatable cylinder 3, which is used to input gas to increase the air pressure in the pipeline. The inflatable cylinder has an inflating valve and an air release valve, which are respectively installed on the interface sides of both ends of the pipeline 2. The inflatable cylinder 3 has an inflating head 31, which is telescopically matched with the inflatable cylinder 3. The inflating head 31 is installed with a first sealing gasket 32 ​​at the contact end corresponding to the pipeline 2. Inflatable cylinders are installed at both ends of the pipeline to be tested for bidirectional inflation and deflation, which shortens the inflation and deflation time and improves the inflation and deflation efficiency. During operation, align the port side of the pipeline to be tested with the limit block and fix it. Then align the corresponding pipe mouth side of the pipeline with the inflation cylinder, start the inflation cylinders at the same time, extend the corresponding inflation head and align it with the pipe mouth interface side, and make the first sealing gasket contact the pipe mouth side of the pipeline to achieve automatic sealing of the pipe mouth side of the pipeline. Then, inflate the pipeline in both directions, limit the inflation time, detect the air pressure value in the pipeline when the inflation amount is constant, set the standard parts as the control group, and if the air pressure value is constant within the rated time, the air tightness is qualified.

[0023] like Figure 1 As shown: a support frame 7 is installed on the high-position interface side of the bottom plate 1 corresponding to the pipeline 2. The support frame 7 has a vertical support part and a horizontal support plate. The vertical support part is supported on the bottom plate. The air cylinder 3 and the limit block 4 corresponding to the high-position port side of the pipeline 2 are installed on the support frame 7. The support frame is used to raise the corresponding limit block and the air cylinder, so as to position and align the interface side of the pipeline with the air cylinder. The position and height of the support frame are adjustable to match the different extension directions of the pipeline.

[0024] The limit block 4 corresponding to the low-position interface side of the pipeline 2 is installed with a first cylinder assembly 5. The output end of the first cylinder assembly 5 has a clamp fixing 42. The clamp fixing 42 corresponds to the arc groove 41, is located above the limit block 4, and is driven by the first cylinder assembly 5 to complete the lifting and pressing fit. The clamp fixing is lifted and driven by the first cylinder assembly. The clamp fixing is an arc-shaped pipe segment structure, which is used to match the upper side wall of the pipeline. Under the upper and lower alignment clamping of the clamp fixing and the arc groove, the low-position port position of the pipeline is fixed. The clamp fixing 42 is an arc-shaped pipe segment structure, and a rubber pad 43 is installed on the corresponding inner arc surface. It is used to improve the clamping stability.

[0025] like Figure 2 As shown: the base plate 1 is installed with a support block 61 for supporting the middle of the pipeline 2. The position of the support block 61 corresponds to the position of the branch pipe 21 of the pipeline 2. The base plate 1 is also installed with a sealing device for sealing the pipe opening side of the branch pipe 21. Since the pipe body of the pipeline is relatively long, a middle support is required to maintain the installation balance of the pipeline. There are also many functional branch pipes on the side walls of the pipeline. The pipe opening side of the branch pipe needs to be sealed during inspection. The sealing device includes a second cylinder assembly 6. The second cylinder assembly 6 has a pressure block 62 at the corresponding output end. The pressure block 62 corresponds to the pipe opening side of the branch pipe. The pressure block 62 has a second sealing gasket 63 at the corresponding sealing side.

[0026] The first sealing gasket is different from the second sealing gasket in that the first sealing gasket is annular and has a central air hole for filling and releasing air, while the second sealing gasket is a pure sealing component, which is a circular elastic gasket.

[0027] This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.

Claims

1. A multi-station pipeline detection tool, characterized in that: It comprises a plurality of detection devices installed on a bottom plate (1), wherein the plurality of detection devices are all connected to the same pressure detection gauge; The detection device comprises a limit block (4) installed at two side ports of the pipeline (2) to be tested, and the limit block (4) has an arc groove (41) that limits the side wall of the pipeline (2); The detection device also includes an air-charging cylinder (3) which is respectively installed at the interface sides of both ends of the pipeline (2); the air-charging cylinder (3) has an air-charging head (31) which is telescopically matched with the air-charging cylinder (3); and a first sealing gasket (32) is installed at the contact end of the air-charging head (31) corresponding to the pipeline (2).

2. According to claim 1, a multi-station pipeline detection tool is characterized in that: A support frame (7) is installed on the high-position interface side of the bottom plate (1) corresponding to the pipeline (2), and the support frame (7) has a vertical support portion and a horizontal support plate. The air cylinder (3) and the limit block (4) corresponding to the high-position port side of the pipeline (2) are both installed on the support frame (7).

3. According to claim 1, a multi-station pipeline detection tool is characterized in that: The limiting block (4) corresponding to the low-position interface side of the pipeline (2) is installed with a first cylinder assembly (5), and the output end of the first cylinder assembly (5) has a clamp fixing piece (42), and the clamp fixing piece (42) corresponds to the arc groove (41), is located above the limiting block (4), and is driven by the first cylinder assembly (5) to complete the lifting and pressing fit.

4. According to claim 3, a multi-station pipeline detection tool is characterized in that: The clamp fixing member (42) is an arc-shaped tube segment structure, and a rubber pad (43) is installed corresponding to the inner arc surface.

5. According to claim 1, a multi-station pipeline detection tool is characterized in that: The bottom plate (1) is provided with a support block (61) for supporting the middle part of the pipeline (2); the position of the support block (61) corresponds to the position of the branch pipe (21) of the pipeline (2); and the bottom plate (1) is also provided with a sealing device for sealing the pipe opening side of the branch pipe (21).

6. According to claim 5, a multi-station pipeline detection tool is characterized in that: The sealing device comprises a second cylinder assembly (6), the second cylinder assembly (6) having a pressure block (62) at the corresponding output end, the pressure block (62) corresponding to the branch pipe outlet side, and the pressure block (62) having a second sealing gasket (63) at the corresponding sealing side.

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