A gas transport tank leakage detection auxiliary device

Abstract

The present invention relates to the technical field of gas transport tank leakage detection, specifically to a gas transport tank leakage detection auxiliary device, comprising: a tank body, the top surface of the tank body is integrally formed with a connecting portion, a valve is installed in the middle of the top surface of the connecting portion; a mounting structure is installed on the tank body, the mounting structure includes a mounting cylinder, the mounting cylinder is movably installed on the outside of the connecting portion through threads, a sealing gasket is bonded to the inner wall of the mounting cylinder, two groups of partitions are slidably installed in the middle of the inner side of the mounting cylinder, and a rectangular block is slidably installed inside the partition. The detection device of the present invention can be installed on the outside of the valve through threads by setting the mounting structure, so as to detect the sealing of the gas tank, and the upper and lower sections of the valve can be separated by the partition, and the sealing of the valve body and the connection between the valve and the connecting portion can be detected separately, so as to more intuitively detect the gas leakage location, thereby improving the functionality of the device.

Description

Technical Field

[0001] The invention relates to the technical field of gas transport tank leakage detection, in particular to a gas transport tank leakage detection auxiliary device. Background Art

[0002] Gas cylinders are important containers for storing and transporting gases. Most existing gas cylinders are composed of a tank body and a valve. The valve is used to control the in and out of gas. The structure of the valve is smaller than the tank body and forms a right angle with the tank body, making it the most vulnerable part. At the same time, most valves are made of copper alloy and are not as strong as the tank body. Therefore, during the transportation and use of the gas cylinder, the valve is easy to break at the bottleneck. Therefore, the air tightness of the gas cylinder needs to be tested before filling the gas to prevent losses caused by gas leakage.

[0003] In this regard, China's patent application number: CN202322025222.6 discloses a gas tank air tightness detection device, including a bottom plate and a top plate, the bottom plate is arranged in parallel below the top plate, and is connected and fixed by a support frame, a sealing cover is provided below the top plate, which is sleeved with the top of the gas tank, and the sealing cover is fixed to the top plate by a telescopic mechanism arranged in the vertical direction, and a first sealing ring capable of pressing and sealing with the gas tank is fixed in the sealing cover, and an air intake pipe is provided above the sealing cover, and the air intake pipe is connected to the sealing cover through a flexible connecting pipe, and a one-way valve is installed at one end of the connecting pipe located at the sealing cover, and a pressure gauge connected to the inside thereof is installed on the sealing cover. In the gas tank air tightness detection device of the application, the volume of the sealing cover is smaller than the volume of the gas tank, and it is not necessary to inflate and pressurize the gas tank during detection, and the gas can be quickly deflated after the detection is completed, which improves the detection efficiency and is simple and convenient to operate. When a gas tank leaks, the pressure of the sealing cover will drop significantly, which is easy to detect.

[0004] The detection device can seal the outer side of the top of the gas tank through the cooperation of the telescopic mechanism and the sealing cover for detection. However, in actual use, in order to avoid damage to the valve, a safety cap fixedly connected to the tank body through threads will be installed outside the valve. The opening of the threads on the tank body will affect the sealing effect of the sealing ring, and the method of clamping the sealing cover on the top of the gas tank through the telescopic mechanism is relatively simple and easy to damage the tank body or the sealing cover. At the same time, the telescopic mechanism acts directly on the gas tank, which has high requirements on the placement stability of the gas tank, is not conducive to use in existing factories, and has a relatively limited scope of application.

[0005] Therefore, in order to solve the above problems, a gas transport tank leakage detection auxiliary device is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a gas transport tank leakage detection auxiliary device to solve the problem that the detection device proposed in the above background technology can seal the outer side of the top of the gas tank through the cooperation of a telescopic mechanism and a sealing cover for detection, but in actual use, in order to avoid damage to the valve, a safety cap fixedly connected to the tank body by a thread will be installed outside the valve. The opening of the thread on the tank body will affect the sealing effect of the sealing ring, and the method of clamping the sealing cover on the top of the gas tank through the telescopic mechanism is relatively simple and easy to damage the tank body or the sealing cover. At the same time, the telescopic mechanism directly acts on the gas tank, which has high requirements on the placement stability of the gas tank, is not conducive to the use of existing factories, and has a relatively limited scope of application.

[0007] To achieve the above object, the present invention provides the following technical solution: a gas transport tank leakage detection auxiliary device, comprising: a tank body, a connecting portion is integrally formed on the top surface of the tank body, and a valve is installed in the middle of the top surface of the connecting portion;

[0008] The tank body is provided with a mounting structure, which includes a mounting tube, which is movably mounted on the outer side of the connecting part through a thread, a sealing gasket is bonded to the inner wall of the mounting tube, two groups of partitions are slidably mounted on the inner middle part of the inner side of the mounting tube, a rectangular block is slidably mounted inside the partition, a first spring is fixedly connected to the surface of the rectangular block, a worm hand plate is movably mounted on the surface of the mounting tube through a bearing, and a wire reel is fixedly connected to the middle part of the worm hand plate.

[0009] Preferably, a detection structure is installed on the mounting structure, and the detection structure includes a slider, and the slider is movably mounted on the top surface of the mounting cylinder through a thread, and a pressure gauge and an air pipe are provided on the top surface of the slider, and a fixing cylinder is fixedly installed on the inner wall of the slider, and a cover cylinder is sleeved on the outer side of the bottom end of the fixing cylinder, and a second spring is fixedly connected to the outer wall of the fixing cylinder.

[0010] Preferably, a connecting structure is installed on the mounting structure, and the connecting structure includes a fixed block, which is slidably mounted on the inner wall of the mounting cylinder, a third spring is fixedly connected to the outer wall of the fixed block, a clamping block is movably mounted on the inner upper end of the fixed block via a rotating shaft, and a coil spring is fixedly connected to the outer wall of the rotating shaft, and a pull rope is fixedly connected to the surface of the clamping block.

[0011] Preferably, the sealing gasket fits tightly with the connecting portion, and two groups of partitions are provided, the two groups of partitions are respectively located on both sides of the middle section of the valve, and sealing rings are provided on the opposite surfaces of the two groups of partitions.

[0012] Preferably, one end of the first spring is fixedly connected to the inner wall of the partition, the worm hand wheel passes through two groups of partitions, and the wire drum is located on the inner side of the mounting cylinder.

[0013] Preferably, sealing rings are provided at the connection between the sliding block and the mounting tube, at the connection between the fixing tube and the cover tube, and at the bottom surface of the cover tube.

[0014] Preferably, the inner diameters of the fixing cylinder and the cover cylinder are both larger than the width of the valve, and one end of the second spring is fixedly connected to the cover cylinder.

[0015] Preferably, two groups of the connection structure are provided, and the two groups of the connection structure are symmetrically installed at front and rear positions of the inner wall of the mounting tube, and one end of the third spring is fixedly connected to the inner wall of the mounting tube.

[0016] Preferably, one end of the coil spring is fixedly connected to the inner wall of the fixed block, and the bottom end of the pull rope is fixedly connected to the bobbin.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the detection device of the present invention can be installed on the outside of the valve by threading through the provision of an installation structure, so as to detect the sealing of the gas tank, and by providing a partition, the upper and lower sections of the valve can be separated, and the sealing of the valve body and the sealing of the connection between the valve and the connection part can be detected separately, so as to more intuitively detect the gas leakage location, thereby improving the functionality of the device.

[0018] The valve cap is screwed onto the top surface of the mounting cylinder through the thread, which is convenient for assembly and can ensure the sealing between the connecting part, the mounting cylinder and the slider, while causing less damage to the gas tank. At the same time, the fixing cylinder and the cover cylinder are sleeved onto the outer side of the upper end of the valve, and the cover cylinder is located on the inner side of the connecting structure, and the block is located on the upper side of the cover cylinder. The gas enters between the mounting cylinder and the slider through the air pipe. By observing the value on the pressure gauge, if the value remains unchanged within the test time, it is proved that the gas tank has no airtightness defect and can continue to be used. If the value gradually decreases within the test time, it is proved that the gas tank has an airtightness defect.

[0019] After proving that the gas tank has an airtightness defect, the worm handwheel is rotated. The worm handwheel is threadedly connected to the rectangular block. The rotation of the worm handwheel drives the two groups of partitions to move through the rectangular block, so that the two groups of partitions are close to each other. At the same time, the worm handwheel can drive the wire drum to rotate when it rotates. The rotation of the wire drum can pull and reel in the draw rope, and the draw rope can pull the clamping block, so that the clamping block deflects on the inner side of the fixed block and can be changed from a vertical state to a horizontal state. The end of the clamping block is located on the upper side of the top surface of the cover cylinder. When the clamping block deflects, it can drive the coil spring to deform. As the worm handwheel continues to rotate, the two groups of partitions can clamp the middle position of the valve, and the partition and the valve are tightly closed. The sealing can separate the upper and lower sections of the valve. At this time, the partition cannot move further. Continuing to rotate the worm hand plate will drive the rectangular block to slide in the partition and squeeze the first spring, causing the first spring to deform. At the same time, the wire drum continues to rotate and reel in the draw rope, while the clamping block is restricted by the fixed block and cannot continue to rotate. Therefore, when the draw rope is pulled again, the clamping block and the fixed block are pulled down on the inner wall of the installation cylinder. When the fixed block is active, it can squeeze the third spring. At the same time, the clamping block fits the top surface of the cover cylinder downward, and as the draw rope and the fixed block descend, the cover cylinder is pressed to move downward, and the bottom surface of the cover cylinder fits the top surface of the partition, which can make the slider , the space between the pressure gauge and the bottom of the air pipe, the fixed cylinder, the cover cylinder and the two sets of partitions is sealed, and the upper part of the valve is located in the above space. At this time, add gas through the air pipe again and observe the value on the pressure gauge again. The sealing of the valve body and the sealing of the connection between the valve and the connection part can be tested separately. If the value remains unchanged during the test time, it proves that there is an airtight defect in the connection between the connection part and the valve, and it is necessary to re-seal and reinforce the connection between the connection part and the valve. If the value gradually decreases during the test time, it proves that the valve has a functional defect and needs to be replaced, so as to more intuitively detect gas leakage. The exposed part improves the functionality of the device. After the detection is completed, the worm handwheel is rotated in the opposite direction, the bobbin is reversed, the pull rope is lengthened, and the fixed block is reset and raised in the installation cylinder under the action of the third spring. At the same time, the card block is reset and retracted into the fixed block under the action of the coil spring, so the downward pressure on the cover cylinder can be released. The cover cylinder is raised outside the fixed cylinder under the action of the second spring. At the same time, the rectangular block is reset in the partition, and the first spring is restored. The two groups of partitions are released from the abutment against the valve and move away from each other. The installation cylinder is rotated and unscrewed from the connecting part, and the installation structure and the detection structure can be removed from the gas tank. The operation is convenient and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic front view of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure explosion of the connection part and the installation tube of the present invention;

[0022] Figure 3 This is an exploded schematic diagram of the structure of the installation tube and the slider of the present invention;

[0023] Figure 4 It is a front cross-sectional schematic diagram of the structure of the connecting portion and the mounting tube of the present invention;

[0024] Figure 5 It is a schematic diagram of a top cross-sectional view of the structure of the partition of the present invention;

[0025] Figure 6 It is a schematic side cross-sectional view of the structure of the mounting tube and the slider of the present invention;

[0026] Figure 7 It is a schematic diagram of the structural explosion of the connection structure of the present invention;

[0027] Figure 8 It is a schematic front cross-sectional view of the structure of the detection structure of the present invention;

[0028] Fig. 9 It is a schematic structural diagram of the fitting state of the cover tube and the partition plate of the present invention.

[0029] In the figure: 1. tank body; 11. connecting part; 12. valve; 2. mounting structure; 21. mounting cylinder; 22. sealing gasket; 23. partition; 24. rectangular block; 25. first spring; 26. worm hand plate; 27. bobbin; 3. detection structure; 31. slider; 32. pressure gauge; 33. air pipe; 34. fixing cylinder; 35. cover cylinder; 36. second spring; 4. connecting structure; 41. fixing block; 42. third spring; 43. clamping block; 44. coil spring; 45. pull rope. DETAILED DESCRIPTION

[0030] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-9 , an embodiment provided by the present invention:

[0032] The tank body 1, connecting part 11, valve 12, pressure gauge 32 and air pipe 33 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here.

[0033] A gas transport tank leakage detection auxiliary device comprises: a tank body 1, a connecting portion 11 is integrally formed on the top surface of the tank body 1, and a valve 12 is installed in the middle of the top surface of the connecting portion 11;

[0034] A mounting structure 2 is installed on the tank body 1, and the mounting structure 2 includes a mounting cylinder 21, which is movably mounted on the outer side of the connecting part 11 through threads, and a sealing gasket 22 is bonded to the inner wall of the mounting cylinder 21, and two groups of partitions 23 are slidably mounted on the inner middle part of the mounting cylinder 21, and a rectangular block 24 is slidably mounted inside the partition 23, and a first spring 25 is fixedly connected to the surface of the rectangular block 24, and a worm hand plate 26 is movably mounted on the surface of the mounting cylinder 21 through a bearing, and a wire reel 27 is fixedly connected to the middle part of the worm hand plate 26, and the mounting structure 2 can be installed on the outer side of the valve 12 through threads to detect the sealing of the gas tank, and by setting the partition 23, the upper and lower sections of the valve 12 can be separated, and the sealing of the valve 12 body and the sealing of the connection between the valve 12 and the connecting part 11 can be detected respectively, so as to more intuitively detect the gas leakage site, thereby improving the functionality of the device.

[0035] Furthermore, a detection structure 3 is installed on the mounting structure 2, and the detection structure 3 includes a slider 31. The slider 31 is movably installed on the top surface of the mounting cylinder 21 through a thread. A pressure gauge 32 and an air pipe 33 are provided on the top surface of the slider 31. A fixing cylinder 34 is fixedly installed on the inner wall of the slider 31. A cover cylinder 35 is sleeved on the outer side of the bottom end of the fixing cylinder 34. A second spring 36 is fixedly connected to the outer wall of the fixing cylinder 34. The pressure gauge 32 and the air pipe 33 can be used to detect the sealing of the gas tank.

[0036] Furthermore, a connecting structure 4 is installed on the mounting structure 2, and the connecting structure 4 includes a fixed block 41, which is slidably installed on the inner wall of the mounting cylinder 21, and a third spring 42 is fixedly connected to the outer wall of the fixed block 41. A clamping block 43 is movably installed on the inner upper end of the fixed block 41 through a rotating shaft, and a coil spring 44 is fixedly connected to the outer wall of the rotating shaft, and a pull rope 45 is fixedly connected to the surface of the clamping block 43. When the partition 23 moves, the cover cylinder 35 can be driven by the connecting structure 4 to descend and fit the top surface of the partition 23, so that the slider 31, the pressure gauge 32, the air pipe 33, the fixed cylinder 34, the cover cylinder 35, the partition 23 and the upper section of the valve 12 are located in the same sealed space, which is convenient for the sealing detection of the upper end structural function of the valve 12, so as to more intuitively detect the gas leakage location, thereby improving the functionality of the device.

[0037] Furthermore, the sealing gasket 22 fits tightly against the connecting portion 11, and two groups of partitions 23 are provided. The two groups of partitions 23 are respectively located on both sides of the middle section of the valve 12, and sealing rings are provided on the opposite surfaces of the two groups of partitions 23. The two groups of partitions 23 cooperate with each other to separate the upper and lower sections of the valve 12, and the sealing of the valve 12 body and the sealing of the connection between the valve 12 and the connecting portion 11 can be tested respectively, so as to more intuitively detect the gas leakage site, thereby improving the functionality of the device.

[0038] Furthermore, one end of the first spring 25 is fixedly connected to the inner wall of the partition 23, the worm hand wheel 26 passes through the two groups of partitions 23, and the wire drum 27 is located on the inner side of the mounting cylinder 21. The arrangement of the first spring 25 enables the wire drum 27 to continue to rotate and reel in the cover cylinder 35 after the partition 23 fits the valve 12, so that after the two groups of partitions 23 are installed in place, the cover cylinder 35 descends, making it easier for the cover cylinder 35 to fit the two groups of partitions 23 and ensure the sealing of the fitting point.

[0039] Furthermore, sealing rings are provided at the connection between the slider 31 and the mounting tube 21 , the connection between the fixing tube 34 and the cover tube 35 , and the bottom surface of the cover tube 35 . The provision of the sealing rings can ensure the sealing between the mounting structure 2 and the detection structure 3 .

[0040] Furthermore, the inner diameters of the fixed cylinder 34 and the cover cylinder 35 are both larger than the width of the valve 12, one end of the second spring 36 is fixedly connected to the cover cylinder 35, the fixed cylinder 34 and the cover cylinder 35 can be sleeved on the outside of the valve 12 so that the slider 31 can be connected to the mounting cylinder 21, and the second spring 36 provides power for resetting the cover cylinder 35.

[0041] Furthermore, two groups of connecting structures 4 are provided, and the two groups of connecting structures 4 are symmetrically installed at the front and rear positions of the inner wall of the mounting cylinder 21. One end of the third spring 42 is fixedly connected to the inner wall of the mounting cylinder 21. The setting of the two groups of connecting structures 4 can press down the cover cylinder 35 from both sides after the worm hand plate 26 is rotated, so that the movement of the cover cylinder 35 on the outside of the fixed cylinder 34 is stable, and the third spring 42 provides power for the reset and lifting of the fixed block 41 on the inside of the mounting cylinder 21.

[0042] Furthermore, one end of the coil spring 44 is fixedly connected to the inner wall of the fixed block 41, and the bottom end of the pull rope 45 is fixedly connected to the bobbin 27. The coil spring 44 provides power for the block 43 to be reset and stored inside the fixed block 41. When the bobbin 27 rotates, the winding pull rope 45 can be pulled to drive the movement of the block 43.

[0043] Working principle: During assembly, the installation cylinder 21 is screwed onto the outer side of the connection part 11 through threads, so that the installation cylinder 21 is sleeved on the outer side of the valve 12, and the threads of the safety helmet can be used for installation. The setting of the sealing gasket 22 can ensure the sealing of the connection between the installation cylinder 21 and the connection part 11. The slider 31 is screwed onto the top surface of the installation cylinder 21 through threads, which is convenient for assembly and can ensure the sealing between the connection part 11, the installation cylinder 21 and the slider 31. At the same time, the damage to the gas tank is smaller. At the same time, the fixing cylinder 34 and the cover cylinder 35 are sleeved on the outer side of the upper end of the valve 12, and the cover cylinder 35 is located on the inner side of the connection structure 4, and the block 43 is located on the upper side of the cover cylinder 35.

[0044] During the test, the gas enters between the mounting tube 21 and the slider 31 through the gas pipe 33. By observing the value on the pressure gauge 32, if the value remains unchanged during the test time, it proves that the gas tank has no airtightness defects and can continue to be used. If the value gradually decreases during the test time, it proves that the gas tank has airtightness defects.

[0045] After proving that the gas tank has an airtight defect, the worm hand plate 26 is rotated. The worm hand plate 26 is threadedly connected to the rectangular block 24. The rotation of the worm hand plate 26 drives the two groups of partitions 23 to move through the rectangular block 24, so that the two groups of partitions 23 are close to each other. At the same time, the worm hand plate 26 can drive the wire drum 27 to rotate when rotating. The rotation of the wire drum 27 can pull and reel in the drawstring 45. The drawstring 45 can pull the block 43, so that the block 43 deflects inside the fixed block 41 and can change from a vertical state to a horizontal state. The end of the block 43 is located on the upper side of the top surface of the cover tube 35. When the block 43 deflects, it can drive the coil spring 44 to deform.

[0046] As the worm hand plate 26 continues to rotate, the two groups of partitions 23 can clamp the middle section of the valve 12, and the partitions 23 and the valve 12 are sealed and fitted to separate the upper and lower sections of the valve 12. At this time, the partitions 23 cannot move further, and the worm hand plate 26 continues to rotate, which will drive the rectangular block 24 to slide in the partition 23 and squeeze the first spring 25, causing the first spring 25 to deform. At the same time, the bobbin 27 continues to rotate and reel in the drawstring 45, while the block 43 is restricted by the fixed block 41 and cannot continue to rotate, so the drawstring 45 is further pulled. When the pull rope 45 and the fixed block 41 are moved, the clamping block 43 and the fixed block 41 are pulled down on the inner wall of the installation cylinder 21. When the fixed block 41 is moved, the third spring 42 can be squeezed, and at the same time, the clamping block 43 is pressed downward to fit the top surface of the cover cylinder 35. As the pull rope 45 and the fixed block 41 are lowered, the cover cylinder 35 is pressed to move downward, and the bottom surface of the cover cylinder 35 is pressed to fit the top surface of the partition 23, so that the space between the slider 31, the pressure gauge 32 and the bottom end of the air pipe 33, the fixed cylinder 34, the cover cylinder 35 and the two groups of partitions 23 can be sealed, and the upper section of the valve 12 is located in the above space;

[0047] At this time, add gas again through the air pipe 33, and observe the value on the pressure gauge 32 again, so that the sealing of the valve 12 body and the sealing of the connection between the valve 12 and the connection part 11 can be tested respectively. If the value remains unchanged during the test time, it proves that there is an airtight defect in the connection between the connection part 11 and the valve 12, and it is necessary to re-seal and reinforce the connection between the connection part 11 and the valve 12. If the value gradually decreases during the test time, it proves that there is a functional defect in the valve 12, and it needs to be replaced, so as to more intuitively detect the gas leakage position, thereby improving the functionality of the device;

[0048] After the detection is completed, the worm hand plate 26 is rotated in the opposite direction, the spool 27 is reversed, the pull rope 45 is lengthened, and the fixed block 41 is reset and raised in the installation cylinder 21 under the action of the third spring 42. At the same time, the block 43 is reset and retracted into the fixed block 41 under the action of the coil spring 44, and the downward pressure on the cover cylinder 35 can be released. The cover cylinder 35 is raised outside the fixed cylinder 34 under the action of the second spring 36. At the same time, the rectangular block 24 is reset in the partition 23, and the first spring 25 is restored. The two groups of partitions 23 are released from the abutment against the valve 12 and move away from each other. The installation cylinder 21 is rotated and unscrewed from the connecting portion 11. The installation structure 2 and the detection structure 3 can be removed from the gas tank. The operation is convenient and the use effect is good.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A gas transport tank leakage detection auxiliary device, comprising: A tank body (1), wherein a connection portion (11) is integrally formed on the top surface of the tank body (1), and a valve (12) is installed in the middle of the top surface of the connection portion (11); Features: The tank body (1) is provided with a mounting structure (2), the mounting structure (2) comprising a mounting tube (21), the mounting tube (21) being movably mounted on the outer side of the connecting portion (11) through a thread, a sealing gasket (22) being bonded to the inner wall of the mounting tube (21), two groups of partitions (23) being slidably mounted on the inner middle part of the mounting tube (21), a rectangular block (24) being slidably mounted inside the partition (23), a first spring (25) being fixedly connected to the surface of the rectangular block (24), a worm hand plate (26) being movably mounted on the surface of the mounting tube (21) through a bearing, a wire drum (27) being fixedly connected to the middle part of the worm hand plate (26), one end of the first spring (25) being fixedly connected to the inner wall of the partition (23), the worm hand plate (26) passing through the two groups of partitions (23), and the wire drum (27) being located on the inner side of the mounting tube (21); A detection structure (3) is installed on the installation structure (2), and the detection structure (3) comprises a slider (31), and the slider (31) is movably installed on the top surface of the installation cylinder (21) through a thread, and a pressure gauge (32) and an air pipe (33) are arranged on the top surface of the slider (31), and a fixing cylinder (34) is fixedly installed on the inner wall of the slider (31), and a cover cylinder (35) is sleeved on the outer side of the bottom end of the fixing cylinder (34), and a second spring (36) is fixedly connected to the outer wall of the fixing cylinder (34); The mounting structure (2) is provided with a connecting structure (4), the connecting structure (4) comprising a fixing block (41), the fixing block (41) being slidably mounted on the inner wall of the mounting tube (21), the outer wall of the fixing block (41) being fixedly connected with a third spring (42), the inner upper end of the fixing block (41) being movably mounted with a clamping block (43) via a rotating shaft, and the outer wall of the rotating shaft being fixedly connected with a coil spring (44), the surface of the clamping block (43) being fixedly connected with a pull rope (45), one end of the coil spring (44) being fixedly connected with the inner wall of the fixing block (41), the pull rope (45) being fixedly connected with the inner wall of the fixing block (41), and the third spring (42) being fixedly connected with the outer wall of the rotating shaft. The bottom end of the worm hand plate (45) is fixedly connected to the bobbin (27), and the worm hand plate (26) is rotated. The worm hand plate (26) is threadedly connected to the rectangular block (24). The rotation of the worm hand plate (26) drives the two groups of partitions (23) to move through the rectangular block (24), so that the two groups of partitions (23) are close to each other. At the same time, the worm hand plate (26) can drive the bobbin (27) to rotate when rotating. The rotation of the bobbin (27) can pull and reel in the drawstring (45), and the drawstring (45) can pull the block (43), so that the block (43) deflects inside the fixed block (41) and can change from a vertical state to a horizontal state.

2. A gas transport tank leakage detection auxiliary device according to claim 1, characterized in that: The sealing gasket (22) is tightly fitted to the connecting portion (11), and two groups of partitions (23) are provided. The two groups of partitions (23) are respectively located on both sides of the middle section of the valve (12), and sealing rings are provided on the opposite surfaces of the two groups of partitions (23).

3. A gas transport tank leakage detection auxiliary device according to claim 1, characterized in that: The connection between the sliding block (31) and the mounting tube (21), the connection between the fixing tube (34) and the cover tube (35), and the bottom surface of the cover tube (35) are all provided with sealing rings.

4. A gas transport tank leakage detection auxiliary device according to claim 1, characterized in that: The inner diameters of the fixing tube (34) and the cover tube (35) are both larger than the width of the valve (12), and one end of the second spring (36) is fixedly connected to the cover tube (35).

5. A gas transport tank leakage detection auxiliary device according to claim 1, characterized in that: The connection structure (4) is provided in two groups, and the two groups of the connection structure (4) are symmetrically installed at the front and rear positions of the inner wall of the installation tube (21), and one end of the third spring (42) is fixedly connected to the inner wall of the installation tube (21).

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