Gas pipeline pressure testing device

Abstract

The utility model discloses a gas pipeline pressure testing device, which comprises a working frame and a position adjusting mechanism, two groups of end positioning mechanisms are fixedly mounted at the top of the working frame, and an inflating mechanism for supplying gas to the inside of a gas pipeline is arranged at the top of the working frame. A pressure detection mechanism for detecting the internal pressure of the gas pipeline is arranged at the top of the working frame, and a positioning mechanism for positioning the gas pipeline is arranged at the top of the position adjusting mechanism. According to the gas pipeline positioning device, the two ends of a gas pipeline can be positioned and fixed through the end positioning mechanism, then the gas pipeline can be placed in the positioning mechanism to be positioned, the front-back position of the positioning mechanism can be adjusted through the arranged position adjusting mechanism, and therefore gas pipelines of different lengths can be positioned; the inflation mechanism and the pressure detection mechanism are fixed to the two ends of the gas pipeline in a contact mode, then the inflation mechanism supplies gas, and the pressure detection mechanism can be used for detecting the internal pressure change of the gas pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline processing, in particular to a gas pipeline pressure testing device. Background Art

[0002] Gas pipelines refer to pipeline systems used to transport natural gas, liquefied petroleum gas (LPG), manufactured gas, or other combustible gases. These pipelines can be part of a city gas network or distribution lines within a building.

[0003] When using gas pipelines, high sealing requirements are required for them. Therefore, high sealing requirements are needed for gas pipelines. When testing the sealing, internal pressure tests are usually performed. However, the existing pressure testing devices are more complicated to test when in use, and if the gas pipeline is soft, inflation testing can easily cause the pipeline to bend. For this reason, we propose a gas pipeline pressure testing device. Utility Model Content

[0004] The purpose of the utility model is to provide a gas pipeline pressure testing device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a gas pipeline pressure testing device, comprising a work frame, a support frame fixedly installed at the bottom of the work frame, two groups of end positioning mechanisms fixed to the two ends of the gas pipeline fixedly installed on the top of the work frame, an inflation mechanism for supplying gas to the inside of the gas pipeline is provided at the top of the work frame and at a position corresponding to one side of one group of the end positioning mechanisms, a pressure detection mechanism for detecting the internal pressure of the gas pipeline is provided at the top of the work frame and at a position located on the side of the other group of the end positioning mechanisms, a position adjustment mechanism is fixedly installed on the top of the work frame and on the other side of the end positioning mechanism, and a positioning mechanism for positioning the gas pipeline is provided on the top of the position adjustment mechanism.

[0006] Furthermore, the end positioning mechanism includes a first support frame, a lower positioning seat, a first driving cylinder and an upper positioning seat. The first support frame is fixedly installed on the working frame, the lower positioning seat is fixedly installed on the bottom of the inner wall of the first support frame, the first driving cylinder is fixedly installed on the top of the first support frame, and the output end of the first driving cylinder is fixedly connected to the upper positioning seat.

[0007] Furthermore, the inflation mechanism includes a second support frame, a second driving cylinder, a first positioning block and a supply pipe. The second support frame is fixedly installed on the top of the work frame. The second driving cylinder is fixedly installed on the second support frame. The output end of the second driving cylinder is fixedly connected to the first positioning block. The first positioning block is in contact with the inner wall of one end of the gas pipeline. A supply pipe extending to the inside of the gas pipeline is provided inside the first positioning block.

[0008] Furthermore, the pressure detection mechanism includes a third support frame, a third driving cylinder, a second positioning block and a pressure tester. The third support frame is fixedly installed on the work frame. The third driving cylinder is fixedly installed on the third support frame. The output end of the third driving cylinder is fixedly connected to the second positioning block that is attached to the inner wall of the other end of the rain gas pipeline. The second positioning block is penetrated by a pressure tester. One side of the first positioning block and the second positioning block are both fixedly connected to a conical sealing head.

[0009] Furthermore, the position adjustment mechanism includes a mounting plate, a threaded rod, a threaded sleeve, a slide rail and a slider. Two sets of mounting plates are fixedly installed on the top of the work frame. A threaded rod is rotatably connected between the two sets of mounting plates. A turntable is fixedly connected to one end of the mounting plate. Two sets of slide rails are fixedly installed on the top of the work frame. The top of the slide rail is slidably connected to a positioning mechanism through a slider. The outer surface of the threaded rod is threadedly connected to a threaded sleeve, and the top of the threaded sleeve is fixedly connected to the positioning mechanism.

[0010] Furthermore, the positioning mechanism includes a positioning seat and a positioning groove. The positioning seat is configured to be "U"-shaped. The positioning seat is fixedly connected to the threaded sleeve and the slider. A "U"-shaped positioning groove is provided on the top of the positioning seat.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the present invention can position and fix the two ends of the gas pipeline by setting an end positioning mechanism, and then the gas pipeline can be placed inside the positioning mechanism for positioning, which can prevent the pipeline from bending during inflation, and the set position adjustment mechanism can adjust the front and rear positions of the positioning mechanism, so that gas pipelines of different lengths can be positioned. When the positioning of the gas pipeline is completed, the inflation mechanism and the pressure detection mechanism are contacted and fixed with the two ends of the gas pipeline, and then the inflation mechanism can use the pressure detection mechanism to detect the internal pressure changes of the gas pipeline, so that the sealing of the gas pipeline can be detected in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the first stereoscopic structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the second stereoscopic structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the positioning mechanism of the utility model.

[0015] In the figure: 1 working frame, 2 supporting frame, 3 end positioning mechanism, 4 charging mechanism, 5 pressure detecting mechanism, 6 position adjusting mechanism, 7 positioning mechanism, 8 first supporting frame, 9 lower positioning seat, 10 first driving cylinder, 11 upper positioning seat, 12 second supporting frame, 13 second driving cylinder, 14 first positioning block, 15 supply pipe, 16 third supporting frame, 17 third driving cylinder, 18 second positioning block, 19 pressure tester, 20 sealing head, 21 mounting plate, 22 threaded rod, 23 threaded sleeve, 24 turntable, 25 slide rail, 26 slider, 27 positioning seat, 28 positioning groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 3 The utility model provides a technical solution: a gas pipeline pressure testing device, comprising a work frame 1, a support frame 2 is fixedly installed on the bottom of the work frame 1, two groups of end positioning mechanisms 3 for fixing the two ends of the gas pipeline are fixedly installed on the top of the work frame 1, an inflation mechanism 4 for supplying gas to the inside of the gas pipeline is arranged at the top of the work frame 1 and at a position corresponding to one side of one group of the end positioning mechanisms 3, a pressure detection mechanism 5 for detecting the internal pressure of the gas pipeline is arranged at the top of the work frame 1 and at a position on the side of the other group of the end positioning mechanisms 3, a position adjustment mechanism 6 is fixedly installed on the top of the work frame 1 and at the other side of the end positioning mechanism 3, and a positioning mechanism 7 for positioning the gas pipeline is arranged on the top of the position adjustment mechanism 6.

[0018] Among them, by setting the end positioning mechanism 3, the two ends of the gas pipeline can be positioned and fixed, and then the gas pipeline can be placed inside the positioning mechanism 7 for positioning, so as to prevent the pipeline from bending during inflation, and the set position adjustment mechanism 6 can adjust the front and rear positions of the positioning mechanism 7, so that gas pipelines of different lengths can be positioned. When the positioning of the gas pipeline is completed, the inflation mechanism 4 and the pressure detection mechanism 5 are contacted and fixed with the two ends of the gas pipeline, and then the inflation mechanism 4 supplies gas and the pressure detection mechanism 5 can be used to detect the internal pressure changes of the gas pipeline, so that the sealing of the gas pipeline can be detected in time.

[0019] See also Figure 1 and Figure 2 The end positioning mechanism 3 includes a first support frame 8, a lower positioning seat 9, a first driving cylinder 10 and an upper positioning seat 11. The first support frame 8 is fixedly installed on the working frame 1. The lower positioning seat 9 is fixedly installed on the bottom of the inner wall of the first support frame 8. The first driving cylinder 10 is fixedly installed on the top of the first support frame 8. The output end of the first driving cylinder 10 is fixedly connected to the upper positioning seat 11.

[0020] Among them, the end of the gas pipeline is placed on the lower positioning seat 9, and then the first driving cylinder 10 is operated, and the first driving cylinder 10 drives the upper positioning seat 11 to move downward, so that the gas pipeline can be fixedly installed through the lower positioning seat 9 and the upper positioning seat 11.

[0021] See also Figure 1 、 Figure 2 and Figure 3 The position adjustment mechanism 6 includes a mounting plate 21, a threaded rod 22, a threaded sleeve 23, a slide rail 25 and a slider 26. Two groups of mounting plates 21 are fixedly installed on the top of the work frame 1. A threaded rod 22 is rotatably connected between the two groups of mounting plates 21. A turntable 24 is fixedly connected to one end of the mounting plate 21. Two groups of slide rails 25 are fixedly installed on the top of the work frame 1. The top of the slide rail 25 is slidably connected to the positioning mechanism 7 through the slider 26. The outer surface of the threaded rod 22 is threadedly connected to the threaded sleeve 23, and the top of the threaded sleeve 23 is fixedly connected to the positioning mechanism 7.

[0022] Among them, the front and rear positions of the positioning mechanism 7 are adjusted by the position adjustment mechanism 6 according to the length of the gas pipeline. When the position of the positioning mechanism 7 is adjusted, the turntable 24 is rotated, and the turntable 24 drives the threaded rod 22 to rotate. Then, the threaded sleeve 23 can be used to push the positioning mechanism 7 and the slider 26 to move forward and backward along the slide rail 25, so that the position adjustment of the positioning mechanism 7 can be completed.

[0023] See also Figure 1 、 Figure 2 and Figure 3 The positioning mechanism 7 includes a positioning seat 27 and a positioning groove 28. The positioning seat 27 is set to be "U"-shaped. The positioning seat 27 is fixedly connected to the threaded sleeve 23 and the slider 26. A "U"-shaped positioning groove 28 is opened on the top of the positioning seat 27.

[0024] Among them, after the front and rear position adjustment of the positioning mechanism 7 is completed, the gas pipeline is placed inside the "U"-shaped positioning groove 28, so that the gas pipeline can be positioned to prevent bending and damage during the inflation process.

[0025] See also Figure 1 and Figure 2 The inflation mechanism 4 includes a second support frame 12, a second driving cylinder 13, a first positioning block 14 and a supply pipe 15. The second support frame 12 is fixedly installed on the top of the work frame 1. The second driving cylinder 13 is fixedly installed on the second support frame 12. The output end of the second driving cylinder 13 is fixedly connected to the first positioning block 14. The first positioning block 14 is in contact with the inner wall of one end of the gas pipeline. The first positioning block 14 is provided with a supply pipe 15 extending to the inside of the gas pipeline.

[0026] Among them, after the positioning of both ends of the gas pipeline is completed, the second driving cylinder 13 is operated, and the second driving cylinder 13 pushes the first positioning block 14 and the sealing head 20 to move toward the gas pipeline, so that the sealing head 20 can be used to seal the gas pipeline, and then the supply pipe 15 is fixedly connected with the external gas supply mechanism, and the supply pipe 15 can be used to supply gas to the gas pipeline.

[0027] See also Figure 1 and Figure 2 The pressure detection mechanism 5 includes a third support frame 16, a third driving cylinder 17, a second positioning block 18 and a pressure tester 19. The third support frame 16 is fixedly installed on the work frame 1. The third driving cylinder 17 is fixedly installed on the third support frame 16. The output end of the third driving cylinder 17 is fixedly connected to the second positioning block 18 that is in contact with the inner wall of the other end of the rain gas pipeline. The second positioning block 18 is penetrated by the pressure tester 19. One side of the first positioning block 14 and the second positioning block 18 are both fixedly connected to a truncated cone-shaped sealing head 20.

[0028] Among them, after the two ends of the gas pipeline are fixed, the third driving cylinder 17 is operated, and the third driving cylinder 17 drives the second positioning block 18 and the sealing head 20 to move toward the other end of the gas pipeline, so that the other end of the gas pipeline can be sealed. Then the gas supply mechanism 4 supplies gas and the pressure tester 19 can be used to read the pressure data. In this way, the pressure supplied by the gas supply mechanism 4 can be compared with the pressure data detected by the pressure tester 19 to detect the pressure changes inside the gas pipeline.

[0029] When in use, first, place the end of the gas pipeline on the lower positioning seat 9, and then the first driving cylinder 10 is operated, and the first driving cylinder 10 drives the upper positioning seat 11 to move downward, so that the gas pipeline can be fixedly installed through the lower positioning seat 9 and the upper positioning seat 11, and the front and rear positions of the positioning mechanism 7 are adjusted by the position adjustment mechanism 6 according to the length of the gas pipeline. When the position of the positioning mechanism 7 is adjusted, the turntable 24 is rotated, and the turntable 24 drives the threaded rod 22 to rotate, and then the threaded sleeve 23 can be used to push the positioning mechanism 7 and the slider 26 to move forward and backward along the slide rail 25, so that the position adjustment of the positioning mechanism 7 can be completed. After the front and rear position adjustment of the positioning mechanism 7 is completed, the gas pipeline is placed inside the "U"-shaped positioning groove 28, so that the gas pipeline can be positioned to prevent bending and damage during the inflation process. After the positioning of both ends of the gas pipeline is completed, the second driving cylinder 13 is operated, and the second driving cylinder 13 pushes the first positioning block 14 and the sealing head 20 to move toward the gas pipeline, so that the sealing head 20 can be used to seal the gas pipeline. Then the supply pipe 15 is fixedly connected to the external gas supply mechanism, and the supply pipe 15 can be used to supply gas to the gas pipeline. After the two ends of the gas pipeline are fixed, the third driving cylinder 17 is operated, and the third driving cylinder 17 drives the second positioning block 18 and the sealing head 20 to move toward the other end of the gas pipeline, so that the sealing of the other end of the gas pipeline can be completed. Then the gas supply mechanism 4 can use the pressure tester 19 to read the pressure data, so that the pressure supplied by the gas supply mechanism 4 can be compared with the pressure data detected by the pressure tester 19 to detect the pressure change inside the gas pipeline.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas pipeline pressure testing device, comprising a work frame (1), a support frame (2) being fixedly mounted on the bottom of the work frame (1), characterized in that: Two groups of end positioning mechanisms (3) for fixing the two ends of the gas pipeline are fixedly installed on the top of the work frame (1); an air charging mechanism (4) for supplying gas to the inside of the gas pipeline is provided at the top of the work frame (1) and at a position corresponding to one side of one group of the end positioning mechanisms (3); a pressure detection mechanism (5) for detecting the internal pressure of the gas pipeline is provided at the top of the work frame (1) and at a position located on the side of the other group of the end positioning mechanisms (3); a position adjustment mechanism (6) is fixedly installed on the top of the work frame (1) and at the other side of the end positioning mechanism (3); and a positioning mechanism (7) for positioning the gas pipeline is provided on the top of the position adjustment mechanism (6).

2. A gas pipeline pressure testing device according to claim 1, characterized in that: The end positioning mechanism (3) comprises a first support frame (8), a lower positioning seat (9), a first driving cylinder (10) and an upper positioning seat (11); the first support frame (8) is fixedly mounted on the working frame (1); the lower positioning seat (9) is fixedly mounted on the bottom of the inner wall of the first support frame (8); the first driving cylinder (10) is fixedly mounted on the top of the first support frame (8); and the output end of the first driving cylinder (10) is fixedly connected to the upper positioning seat (11).

3. A gas pipeline pressure testing device according to claim 2, characterized in that: The inflation mechanism (4) comprises a second support frame (12), a second driving cylinder (13), a first positioning block (14) and a supply pipe (15); the second support frame (12) is fixedly mounted on the top of the working frame (1); the second driving cylinder (13) is fixedly mounted on the second support frame (12); the output end of the second driving cylinder (13) is fixedly connected to the first positioning block (14); the first positioning block (14) is in contact with the inner wall of one end of the gas pipeline; and the first positioning block (14) is provided with a supply pipe (15) extending into the interior of the gas pipeline.

4. A gas pipeline pressure testing device according to claim 3, characterized in that: The pressure detection mechanism (5) comprises a third support frame (16), a third driving cylinder (17), a second positioning block (18) and a pressure tester (19), wherein the third support frame (16) is fixedly mounted on the working frame (1), the third driving cylinder (17) is fixedly mounted on the third support frame (16), the output end of the third driving cylinder (17) is fixedly connected to the second positioning block (18) which is in contact with the inner wall of the other end of the rain gas pipeline, the second positioning block (18) is penetrated by the pressure tester (19), and one side of each of the first positioning block (14) and the second positioning block (18) is fixedly connected to a truncated cone-shaped sealing head (20).

5. A gas pipeline pressure testing device according to claim 4, characterized in that: The position adjustment mechanism (6) comprises a mounting plate (21), a threaded rod (22), a threaded sleeve (23), a slide rail (25) and a slider (26); two groups of mounting plates (21) are fixedly mounted on the top of the work frame (1); a threaded rod (22) is rotatably connected between the two groups of mounting plates (21); a turntable (24) is fixedly connected to one end of the mounting plate (21); two groups of slide rails (25) are fixedly mounted on the top of the work frame (1); the top of the slide rail (25) is slidably connected to the positioning mechanism (7) via the slider (26); the outer surface of the threaded rod (22) is threadedly connected to the threaded sleeve (23); and the top of the threaded sleeve (23) is fixedly connected to the positioning mechanism (7).

6. A gas pipeline pressure testing device according to claim 5, characterized in that: The positioning mechanism (7) includes a positioning seat (27) and a positioning groove (28). The positioning seat (27) is configured to be U-shaped. The positioning seat (27) is fixedly connected to the threaded sleeve (23) and the slider (26). A U-shaped positioning groove (28) is provided on the top of the positioning seat (27).

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