Gas tightness testing device for fuel gas vertical pipe

Abstract

The invention relates to the technical field of gas vertical pipe gas tightness testing, and discloses a gas vertical pipe gas tightness testing device which comprises a testing seat, an electric push rod is fixed to the testing seat, a mounting support is slidably connected to the output end of the electric push rod, and a first spring is fixed between the mounting support and an output shaft of the electric push rod. A plurality of ventilation rods are fixed on the mounting bracket, a first sealing plug is fixed at one end of each ventilation rod, the other end of each ventilation rod is connected with a strip-shaped ventilation seat, the ventilation rods are communicated with the first sealing plugs, and a gas pressure sensor is fixed on each ventilation rod; a plurality of mounting sockets are fixed at the other end of the test seat, and second sealing plugs are fixed in the mounting sockets; automatic plugging and airtightness detection can be carried out on a plurality of gas vertical pipe bodies at the same time, the efficiency and convenience of product airtightness testing are greatly improved, time and labor are saved, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of gas riser air tightness testing, in particular to a gas riser air tightness testing device. Background Art

[0002] The main function of the gas riser is to transport and distribute gas, ensure the safe operation of urban public infrastructure, and safeguard the daily life of residents and urban production operations1. Gas risers usually include underground risers and overhead pipes, which are directly installed on the wall to facilitate the flow and distribution of gas in the pipeline2. The specific role of gas risers Transporting gas: The gas riser transports gas from the supply source to each user through the pipeline system to ensure the normal supply of gas. Distributing gas: In residential and commercial areas, gas risers distribute gas to various users and facilities to meet daily use needs. At present, some gas risers will be welded to the gas branch pipes entering the house during the processing process. Welding can improve the firmness between the gas riser and the gas branch pipe. After welding, the gas riser needs to be tested for air tightness to avoid gas leakage during the gas riser gas transportation process, thereby affecting the safety of use.

[0003] At present, during the process of gas tightness detection of gas risers, both ends of the gas riser and one end of the gas branch pipe need to be blocked at the same time. During the blocking, multiple plugging heads are manually fixed on the ends of the risers in sequence for blocking. After the test, the multiple plugging heads need to be removed in sequence, which is time-consuming and labor-intensive, and it is impossible to detect multiple fuel risers at the same time. As a result, it takes a lot of time to disassemble and assemble the plugging heads during the gas tightness detection of the gas riser, which greatly affects the efficiency of the gas tightness detection of the gas riser. Summary of the invention

[0004] The present invention provides a gas riser air tightness testing device, which is capable of automatically sealing and airtightness testing a plurality of gas riser bodies at the same time, thereby greatly improving the efficiency and convenience of product air tightness testing, saving time and effort, and having the beneficial effects of convenience and speed. The invention solves the problem that the manual method mentioned in the above background technology is to fix a plurality of sealing heads on the ends of the riser in turn for sealing, and after the test is completed, the plurality of sealing heads need to be removed in turn, which is time-consuming and labor-intensive, and a plurality of fuel risers cannot be tested at the same time, so that the gas riser spends a lot of time to disassemble and assemble the sealing heads during the air tightness testing, which greatly affects the efficiency of the gas riser air tightness testing.

[0005] The present invention provides the following technical solution: A gas riser airtightness testing device, including a testing base, an electric push rod is fixed on the testing base, an installation bracket is slidably connected to the output end of the electric push rod, a first spring is fixed between the installation bracket and the output shaft of the electric push rod, several ventilation rods are fixed on the installation bracket, a first sealing plug is fixed at one end of the ventilation rod, and a strip-shaped ventilation seat is connected to the other end of the ventilation rod. The ventilation rod is communicated with the first sealing plug, a gas pressure sensor is fixed on the ventilation rod, several installation sockets are fixed at the other end of the testing base, and a second sealing plug is fixed in the installation socket;

[0006] A gas riser body is provided on the testing base, a branch pipe is welded on the gas riser body, both ends of the gas riser body are respectively inserted on the first sealing plug and the second sealing plug, several positioning seats are provided on the testing base, a third sealing plug is slidably connected to the positioning seat, a second spring is connected between the third sealing plug and the positioning seat, and an L-shaped abutting block is fixed at the lower end of the third sealing plug.

[0007] As an alternative solution of the gas riser airtightness testing device of the present invention, wherein: A strip-shaped plate is fixed at the end of the electric push rod, several rectangular rods are fixed on the strip-shaped plate, a strip-shaped abutting block is fixed on the rectangular rod, and fourth guide rods are respectively fixed on both sides of the installation bracket, and the fourth guide rods are slidably connected to the testing base.

[0008] As an alternative solution of the gas riser airtightness testing device of the present invention, wherein: Two first sliding grooves are opened on the positioning seat, a first sliding rod is fixed in the first sliding groove, a positioning bracket is slidably connected to the first sliding rod, the positioning bracket is elastically connected to the positioning seat through a third spring, and a first abutting wedge block is fixed at the lower end of the positioning bracket.

[0009] As an alternative solution of the gas riser airtightness testing device of the present invention, wherein: A first guide rod is slidably connected to the positioning seat, a U-shaped abutting block is fixed at one end of the first guide rod, the U-shaped abutting block abuts against the first abutting wedge block, and the first guide rod is elastically connected to the positioning seat through a fourth spring.

[0010] As an alternative solution of the gas riser airtightness testing device of the present invention, wherein: a first guiding block is fixed at one end of the positioning seat, a resisting rod is slidably connected to the first guiding block, a fifth spring is connected between the resisting rod and the first guiding block, an L-shaped resisting frame is slidably connected to the positioning seat, a sixth spring is connected between the L-shaped resisting frame and the positioning seat, one end of the L-shaped resisting frame abuts against the U-shaped resisting block, and the other end of the L-shaped resisting frame abuts against the resisting rod.

[0011] As an alternative solution of the gas riser airtightness testing device of the present invention, wherein: a piston cylinder is fixed on the testing seat, a piston piece is slidably connected in the piston cylinder, a second guiding block is fixed on the piston cylinder, a piston rod is fixed on the piston piece, the piston rod is elastically connected to the second guiding block through a seventh spring, and an air outlet is connected to the piston cylinder.

[0012] As an alternative solution of the gas riser airtightness testing device of the present invention, wherein: a first inflatable sealing ring is installed on the first sealing plug, a first inflatable port communicating with the first inflatable sealing ring is arranged on the installation bracket, a second inflatable sealing ring is installed on the second sealing plug, a second inflatable port communicating with the second inflatable sealing ring is arranged on the installation socket, a third inflatable sealing ring is installed on the third sealing plug, a third inflatable port communicating with the third inflatable sealing ring is arranged on the L-shaped resisting block, and the air outlet is respectively connected to the first inflatable port, the second inflatable port and the third inflatable port through pipelines.

[0013] As an alternative solution of the gas riser airtightness testing device of the present invention, wherein: a second sliding groove is formed in the testing seat, a third guiding rod is fixed in the second sliding groove, a third guiding block is fixed on the positioning seat, the third guiding block is elastically connected to the third guiding rod through an eighth spring, a resisting bracket is fixed on the strip-shaped plate, and the resisting bracket abuts against the positioning seat.

[0014] As an alternative solution of the gas riser airtightness testing device of the present invention, wherein: a second sliding rod is slidably connected to the installation socket, one end of the second sliding rod abuts against the end of the gas riser body, a sliding bracket is fixed at the other end of the second sliding rod, the sliding bracket is elastically connected to the testing seat through a ninth spring, and a strip-shaped resisting block is fixed at one end of the sliding bracket.

[0015] As an alternative solution of the gas riser airtightness testing device of the present invention, wherein: a third sliding rod is slidably connected to one end of the rectangular rod, a second resisting wedge block is fixed at the upper end of the third sliding rod, and a tenth spring is connected between the third sliding rod and the rectangular rod.

[0016] The present invention has the following beneficial effects:

[0017] 1. In this gas riser airtightness test device, by installing the socket and the second sealing plug provided in the socket, it is convenient to seal when one end of several gas riser bodies to be tested is inserted. The electric push rod fixed on the test seat can push the mounting bracket to move horizontally, which is convenient to adjust the working positions of several first sealing plugs, so that the first sealing plugs are inserted into the other ends of several gas riser bodies for plugging, greatly improving the plugging efficiency. When the end of the electric push rod continues to move, it can drive the rectangular rod fixed on the strip plate to move in the positioning seat. The strip-shaped抵触 block fixed on the rectangular rod can achieve the purpose of抵触 with the抵触 rod during the movement. Through the linkage of the抵触 rod, L-shaped抵触 frame and U-shaped抵触 block, the purpose of抵触 with the first抵触 wedge block at the lower end of the positioning bracket can be achieved, so that the two positioning brackets slide on the positioning seat and approach each other, and fit on the branch pipe in a skewed state, thereby摆正 the position of the branch pipe, achieving the purpose of positioning the branch pipe, enabling the opening of the branch pipe to be aligned with the third sealing plug, and improving the accuracy of the plugging position. When the end of the electric push rod continues to move, the purpose of抵触 between the strip-shaped抵触 block and the L-shaped抵触 block can be achieved, so that the third sealing plug moves upward and is inserted into the branch pipe for plugging. The strip-shaped air vent seat can be connected to the pressure testing equipment for airtight detection, and the purpose of输送 gas into the gas riser body through the air vent rod and the first sealing plug for airtight test can be achieved. When the gas riser body is pressurized after inflation, the gas pressure sensor can detect the change of the internal air pressure of the gas riser body, so as to judge whether there is an air leakage phenomenon in the gas riser body. The device can automatically plug and conduct airtight detection on several gas riser bodies at the same time, greatly improving the efficiency and convenience of the airtight test of the product, saving time and effort, and being convenient and fast.

[0018] 2. In this gas riser airtightness test device, after the third sealing plug completes the plugging of the branch pipe, when the end of the electric push rod continues to move, it can drive the rectangular rod to move synchronously. During the movement of the rectangular rod, the purpose of抵触 with the piston rod can be achieved, so that the piston rod drives the piston piece to slide in the piston cylinder. During the sliding process, the purpose of compressing the gas inside the piston cylinder can be achieved, so that the compressed gas is discharged through the air outlet. The compressed gas can be输送 to the first inflation port, the second inflation port and the third inflation port through the pipeline respectively, so as to realize the first inflation sealing ring on the first sealing plug, the second inflation sealing ring on the second sealing plug and the third inflation sealing ring on the third sealing plug, thereby realizing the inflation and expansion of the sealing ring to improve the plugging effect on the gas riser body and the opening of the branch pipe, and avoiding the phenomenon of air leakage during the test, which affects the accuracy of the sealing test.

[0019] 3. In the gas riser air tightness test device, the second sliding rod fixed on the sliding bracket can be conveniently slid in the installation socket and contact the end of the gas riser body. In the process of the rectangular rod and the piston rod contacting each other, the second contact wedge fixed on the third sliding rod can be made to contact with the strip contact block fixed at one end of the sliding bracket, so that the third sliding rod moves downward when contacted, and the second contact wedge can move to one side of the strip contact block. After the test is completed, the second contact wedge can pull the strip contact block to move horizontally when the rectangular rod is reset, so that the sliding bracket drives the second sliding rod to move synchronously, which is convenient for gas The riser body can be quickly detached from the installation socket, which can improve the efficiency of the gas riser body unloading. The third guide rod arranged on the test seat can be elastically connected with the third guide block fixed on the positioning seat. The interference bracket fixed on the strip plate can achieve the purpose of the interference bracket and the positioning seat being in conflict during the branch pipe positioning process, so that the positioning seat can move horizontally as a whole, which is convenient for the positioning bracket to be located on both sides of the branch pipe to improve the positioning effect. At the same time, during the unloading process of the gas riser body, the interference bracket and the positioning seat are released from conflict, which prompts the positioning seat to reset, which can avoid the movement of the branch pipe being hindered during the unloading process of the gas riser body, thereby improving the efficiency of the gas riser body unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a structural cross-sectional view of the present invention.

[0022] Figure 3 This is one of the schematic diagrams of the positioning seat structure of the present invention.

[0023] Figure 4 This is the second schematic diagram of the positioning seat structure of the present invention.

[0024] Figure 5 This is the third schematic diagram of the positioning seat structure of the present invention.

[0025] Figure 6 for Figure 2 A partial enlarged schematic diagram in the middle.

[0026] Figure 7 for Figure 3 A partial enlarged schematic diagram of point B in the middle.

[0027] In the figure: 1. Test base; 101. Gas riser main body; 102. Branch pipe; 2. Electric push rod; 3. Installation bracket; 310. Fourth guide rod; 4. First spring; 5. Vent rod; 6. First sealing plug; 7. Strip-shaped vent seat; 8. Gas pressure sensor; 9. Installation socket; 10. Second sealing plug; 11. Positioning seat; 12. Third sealing plug; 13. Second spring; 14. L-shaped abutting block; 15. Strip-shaped plate; 16. Rectangular rod; 17. Strip-shaped abutting block; 18. First chute; 19. First slide bar; 20. Positioning bracket; 21. Third spring; 22. First abutting wedge; 23. First guide rod; 24. C-shaped abutting block; 241. Fourth spring; 25. First guide block; 26. Abutting rod; 27. Fifth spring; 28. L-shaped abutting frame; 29. Sixth spring; 30. Piston cylinder; 301. Air outlet; 31. Piston piece; 32. Second guide block; 33. Piston rod; 34. Seventh spring; 35. First inflation sealing ring; 36. First inflation port; 37. Second inflation sealing ring; 38. Second inflation port; 39. Third inflation sealing ring; 40. Third inflation port; 41. Second chute; 42. Third guide block; 43. Third guide rod; 44. Eighth spring; 45. Abutting bracket; 46. Tenth spring; 47. Second slide bar; 48. Sliding bracket; 49. Ninth spring; 50. Strip-shaped abutting block; 51. Third slide bar; 52. Second abutting wedge; 53. Tenth spring. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Example 1, please refer to Figures 1 to 7 , a gas riser airtightness test device, including a test base 1, an electric push rod 2 is fixed on the test base 1, an installation bracket 3 is slidably connected to the output end of the electric push rod 2, a first spring 4 is fixed between the output shaft of the electric push rod 2 and the installation bracket 3, a plurality of vent rods 5 are fixed on the installation bracket 3, a first sealing plug 6 is fixed at one end of the vent rod 5, and the other end of the vent rod 5 is connected to a strip-shaped vent seat 7. The vent rod 5 is communicated with the first sealing plug 6, a gas pressure sensor 8 is fixed on the vent rod 5, a plurality of installation sockets 9 are fixed at the other end of the test base 1, and a second sealing plug 10 is fixed in the installation socket 9;

[0030] The test base 1 is provided with a gas riser main body 101. A branch pipe 102 is welded on the gas riser main body 101. The two ends of the gas riser main body 101 are respectively inserted into the first sealing plug 6 and the second sealing plug 10. The test base 1 is provided with a plurality of positioning seats 11. A third sealing plug 12 is slidably connected to the positioning seat 11. A second spring 13 is connected between the third sealing plug 12 and the positioning seat 11. An L-shaped abutting block 14 is fixed to the lower end of the third sealing plug 12.

[0031] A strip-shaped plate 15 is fixed to the end of the electric push rod 2. A plurality of rectangular rods 16 are fixed to the strip-shaped plate 15. A strip-shaped abutting block 17 is fixed to the rectangular rod 16. Fourth guide rods 310 are respectively fixed to both sides of the mounting bracket 3. The fourth guide rods 310 are slidably connected to the test base 1.

[0032] Two first sliding grooves 18 are formed in the positioning seat 11. A first sliding rod 19 is fixed in the first sliding groove 18. A positioning bracket 20 is slidably connected to the first sliding rod 19. The positioning bracket 20 is elastically connected to the positioning seat 11 through a third spring 21. A first abutting wedge 22 is fixed to the lower end of the positioning bracket 20.

[0033] A first guide rod 23 is slidably connected to the positioning seat 11. A U-shaped abutting block 24 is fixed to one end of the first guide rod 23. The U-shaped abutting block 24 abuts against the first abutting wedge 22. The first guide rod 23 is elastically connected to the positioning seat 11 through a fourth spring 241.

[0034] A first guide block 25 is fixed to one end of the positioning seat 11. A resisting rod 26 is slidably connected to the first guide block 25. A fifth spring 27 is connected between the resisting rod 26 and the first guide block 25. An L-shaped resisting frame 28 is slidably connected to the positioning seat 11. A sixth spring 29 is connected between the L-shaped resisting frame 28 and the positioning seat 11. One end of the L-shaped resisting frame 28 abuts against the U-shaped abutting block 24, and the other end of the L-shaped resisting frame 28 abuts against the resisting rod 26.

[0035] When the device is working, one end of a plurality of gas riser bodies 101 is inserted into the installation socket 9 and inserted onto the second sealing plug 10, so that the electric push rod 2 fixed on the test seat 1 can push the installation bracket 3 to move horizontally, prompting a plurality of first sealing plugs 6 to be inserted into the other end of the gas riser body 101, and the purpose of automatically sealing both ends of a plurality of tested gas riser bodies 101 can be achieved. At the same time, two positioning brackets 20 provided on the positioning seat 11 are located on both sides of the branch pipe 102. When the output shaft of the electric push rod 2 continues to move, the first spring 4 stores energy. The installation bracket 3 is limited by the gas riser body 101 and remains stationary. At the same time, it drives the rectangular rod 16 fixed on the strip plate 15 to move in the positioning seat 11. During the movement of the strip-shaped contact block 17 fixed on the rectangular rod 16, the purpose of contacting the contact rod 26 slidably connected in the first guide block 25 can be achieved, and the fifth spring 27 stores energy, prompting the contact rod 26 to move upward and contact one end of the L-shaped contact frame 28. The L-shaped contact frame 28 can achieve the purpose of contacting the U-shaped contact block 24 during horizontal movement, and the sixth spring 29 stores energy. The U-shaped contact block 24 moves horizontally under the contact force, and at the same time, the first guide rod 23 slides horizontally on the positioning seat 11, and the fourth spring 241 stores energy. During the movement of the U-shaped contact block 24, the purpose of contacting the first contact wedge 22 can be achieved, prompting the positioning bracket 20 to move horizontally on the first slide rod 19 in the first chute 18 and gradually fit on the surface of the branch pipe 102. The third spring 21 stores energy to correct the position of the branch pipe 102 and achieve the purpose of positioning the branch pipe 102, so that the opening of the branch pipe 102 can be aligned with the third sealing plug 12, improving the position accuracy of the plugging. When the end of the electric push rod 2 continues to move, the purpose of the strip-shaped contact block 17 contacting the L-shaped contact block 14 can be achieved, and the second spring 13 stores energy. The L-shaped contact block 14 drives the third sealing plug 12 to move upward on the positioning seat 11 and then insert into the branch pipe 102 for plugging. The strip-shaped air vent seat 7 can be connected to the pressure testing equipment, and the purpose of delivering gas into the gas riser body 101 through the vent rod 5 and the first sealing plug 6 for airtight testing can be achieved. When the gas riser body 101 is pressurized after being filled with gas inside, the gas pressure sensor 8 can detect the change in the internal air pressure of the gas riser body 101, so as to be able to judge whether there is a gas leakage phenomenon in the gas riser body 101.

[0036] Embodiment 2. This embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figures 1 to 7 , a piston cylinder 30 is fixed on the test seat 1. A piston piece 31 is slidably connected in the piston cylinder 30. A second guide block 32 is fixed on the piston cylinder 30. A piston rod 33 is fixed on the piston piece 31. The piston rod 33 is elastically connected to the second guide block 32 through a seventh spring 34. An air outlet 301 is connected to the piston cylinder 30.

[0037] A first air-inflating sealing ring 35 is installed on the first sealing plug 6, a first air-inflating port 36 connected to the first air-inflating sealing ring 35 is provided on the mounting bracket 3, a second air-inflating sealing ring 37 is installed on the second sealing plug 10, a second air-inflating port 38 connected to the second air-inflating sealing ring 37 is provided on the mounting socket 9, a third air-inflating sealing ring 39 is installed on the third sealing plug 12, a third air-inflating port 40 connected to the third air-inflating sealing ring 39 is provided on the L-shaped resistance block 14, and the air outlet 301 is respectively connected to the first air-inflating port 36, the second air-inflating port 38 and the third air-inflating port 40 through pipelines.

[0038] In order to improve the sealing effect of the first sealing plug 6 and the second sealing plug 10 on the two ends of the gas riser body 101 and the sealing effect of the third sealing plug 12 on the branch pipe 102, and improve the accuracy of the airtightness test, refer to FIG. Figure 2-Figure 6 After the third sealing plug 12 seals the branch pipe 102, the end of the electric push rod 2 continues to drive the rectangular rod 16 to move horizontally, so as to achieve the purpose of the rectangular rod 16 and the piston rod 33 being in contact with each other, and the piston rod 33 is prompted to slide horizontally on the second guide block 32, thereby driving the piston plate 31 to move in the piston cylinder 30, so as to squeeze the air inside the piston cylinder 30, and prompt the air to be discharged through the air outlet 301 on the piston cylinder 30, and communicate with the first inflation port 36, the second inflation port 38 and the third inflation port 40 through the pipeline, so as to achieve the purpose of inflating the first inflation seal ring 35, the second inflation seal ring 37 and the third inflation seal ring 39, thereby improving the sealing effect of the first sealing plug 6 and the second sealing plug 10 on the two ends of the gas riser body 101 and the third sealing plug 12 on the branch pipe 102.

[0039] Embodiment 3: This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figures 1 to 7 A second slide groove 41 is provided on the test seat 1, a third guide rod 43 is fixed in the second slide groove 41, a third guide block 42 is fixed on the positioning seat 11, the third guide block 42 is elastically connected to the third guide rod 43 through an eighth spring 44, and a resistance bracket 45 is fixed on the strip plate 15, and the resistance bracket 45 is in resistance with the positioning seat 11.

[0040] A second slide bar 47 is slidably connected to the mounting socket 9, one end of the second slide bar 47 abuts against the end of the gas riser body 101, and a sliding bracket 48 is fixed to the other end of the second slide bar 47. The sliding bracket 48 is elastically connected to the test socket 1 through a ninth spring 49, and a strip-shaped abutment block 50 is fixed to one end of the sliding bracket 48.

[0041] One end of the rectangular rod 16 is slidably connected to a third sliding rod 51 , an upper end of the third sliding rod 51 is fixed with a second abutting wedge 52 , and a tenth spring 46 is connected between the third sliding rod 51 and the rectangular rod 16 .

[0042] After the airtight test is completed, the gas riser body 101 needs to be dropped onto the test seat 1 to complete automatic unloading. Figure 3-Figure 7 Before the moving rectangular rod 16 collides with the piston rod 33, the strip-shaped conflicting block 50 fixed at one end of the sliding bracket 48 can be made to conflict with the second conflicting wedge 52, so that the second conflicting wedge 52 is affected by the conflicting force, and the third sliding rod 51 is driven to move downward on the rectangular rod 16. The tenth spring 46 accumulates force, and when the second conflicting wedge 52 moves to one side of the strip-shaped conflicting block 50, the conflict can be released;

[0043] When the gas riser body 101 is unloaded, the electric push rod 2 can drive the mounting bracket 3 to move horizontally, so that the first sealing plugs 6 are separated from the other end of the gas riser body 101. At the same time, the rectangular rod 16 drives the second interference wedge 52 to interfere with the strip interference block 50, so that the strip interference block 50 can drive the sliding bracket 48 to slide on the test seat 1, and the second sliding rod 47 fixed on the sliding bracket 48 slides in the mounting socket 9. The ninth spring 49 accumulates force, so that the second sliding rod 47 can push one end of the gas riser body 101 to fall off from the mounting socket 9. When the other end of the gas riser body 101 is separated from the first sealing plug 6, the gas riser body 101 can be dropped onto the test seat 1 for rapid unloading. When the ninth spring 49 stops stretching, the second interference wedge 52 is subjected to a large interference force from the strip interference block 50, and the second interference wedge 52 moves downward to release the interference with the strip interference block 50.

[0044] In order to prevent the gas riser body 101 from falling and hitting the positioning seat 11 during the unloading process, causing damage to the positioning seat 11, it is necessary to adjust the working position of the positioning seat 11. During the loading process, the interference bracket 45 fixed on the strip plate 15 can be moved synchronously with the strip plate 15. During the blocking process of the branch pipe 102, the interference bracket 45 can be used to interfere with the positioning seat 11, so that the third guide block 42 fixed below the positioning seat 11 slides on the third guide rod 43 fixed in the second slide groove 41, and the eighth spring 44 accumulates force, so that the positioning seat 11 can move horizontally with the positioning bracket 20 to both sides of the branch pipe 102, so that the positioning bracket 20 can be conveniently positioned to position the branch pipe 102. During the unloading process, the strip plate 15 drives the interference bracket 45 to reset, so that the interference bracket 45 and the positioning seat 11 can be released. Under the elastic force of the eighth spring 44, the positioning seat 11 is automatically reset, so that the gas riser body 101 can be prevented from hitting the positioning seat 11 during unloading.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A gas riser air tightness test device, comprising a test seat (1), characterized in that: An electric push rod (2) is fixed on the test base (1). An installation bracket (3) is slidably connected to the output end of the electric push rod (2). A first spring (4) is fixed between the installation bracket (3) and the output shaft of the electric push rod (2). A plurality of ventilation rods (5) are fixed on the installation bracket (3). A first sealing plug (6) is fixed at one end of the ventilation rod (5), and the other end of the ventilation rod (5) is connected to a strip-shaped ventilation seat (7). The ventilation rod (5) is communicated with the first sealing plug (6). A gas pressure sensor (8) is fixed on the ventilation rod (5). A plurality of installation sockets (9) are fixed at the other end of the test base (1). A second sealing plug (10) is fixed in the installation socket (9); A gas riser main body (101) is provided on the test base (1). A branch pipe (102) is welded on the gas riser main body (101). Two ends of the gas riser main body (101) are respectively inserted on the first sealing plug (6) and the second sealing plug (10). A plurality of positioning seats (11) are provided on the test base (1). A third sealing plug (12) is slidably connected to the positioning seat (11). A second spring (13) is connected between the third sealing plug (12) and the positioning seat (11). An L-shaped abutting block (14) is fixed at the lower end of the third sealing plug (12).

2. The gas riser air tightness testing device according to claim 1, characterized in that: A strip-shaped plate (15) is fixed at the end of the electric push rod (2). A plurality of rectangular rods (16) are fixed on the strip-shaped plate (15). A strip-shaped abutting block (17) is fixed on the rectangular rod (16). Fourth guide rods (310) are respectively fixed on both sides of the installation bracket (3). The fourth guide rods (310) are slidably connected to the test base (1).

3. The gas riser air tightness testing device according to claim 2, characterized in that: Two first chutes (18) are formed in the positioning seat (11). A first slide bar (19) is fixed in the first chute (18). A positioning bracket (20) is slidably connected to the first slide bar (19). The positioning bracket (20) is elastically connected to the positioning seat (11) through a third spring (21). A first abutting wedge block (22) is fixed at the lower end of the positioning bracket (20).

4. The gas riser air tightness testing device according to claim 3 is characterized in that: A first guide rod (23) is slidably connected to the positioning seat (11). A U-shaped abutting block (24) is fixed at one end of the first guide rod (23). The U-shaped abutting block (24) abuts against the first abutting wedge block (22). The first guide rod (23) is elastically connected to the positioning seat (11) through a fourth spring (241).

5. The gas riser air tightness testing device according to claim 4, characterized in that: One end of the positioning seat (11) is fixed with a first guiding block (25). A resisting rod (26) is slidably connected to the first guiding block (25). A fifth spring (27) is connected between the resisting rod (26) and the first guiding block (25). An L-shaped resisting frame (28) is slidably connected to the positioning seat (11). A sixth spring (29) is connected between the L-shaped resisting frame (28) and the positioning seat (11). One end of the L-shaped resisting frame (28) abuts against the U-shaped resisting block (24), and the other end of the L-shaped resisting frame (28) abuts against the resisting rod (26).

6. The gas riser air tightness testing device according to claim 5, characterized in that: A piston cylinder (30) is fixed on the test seat (1). A piston piece (31) is slidably connected in the piston cylinder (30). A second guiding block (32) is fixed on the piston cylinder (30). A piston rod (33) is fixed on the piston piece (31). The piston rod (33) is elastically connected to the second guiding block (32) through a seventh spring (34). An air outlet (301) is connected to the piston cylinder (30).

7. The gas riser air tightness testing device according to claim 6, characterized in that: A first inflatable sealing ring (35) is installed on the first sealing plug (6). A first inflating port (36) communicating with the first inflatable sealing ring (35) is arranged on the mounting bracket (3). A second inflatable sealing ring (37) is installed on the second sealing plug (10). A second inflating port (38) communicating with the second inflatable sealing ring (37) is arranged on the mounting socket (9). A third inflatable sealing ring (39) is installed on the third sealing plug (12). A third inflating port (40) communicating with the third inflatable sealing ring (39) is arranged on the L-shaped resisting block (14). The air outlet (301) is communicated with the first inflating port (36), the second inflating port (38) and the third inflating port (40) through pipelines respectively.

8. The gas riser air tightness testing device according to claim 7, characterized in that: A second sliding groove (41) is formed in the test seat (1). A third guiding rod (43) is fixed in the second sliding groove (41). A third guiding block (42) is fixed on the positioning seat (11). The third guiding block (42) is elastically connected to the third guiding rod (43) through an eighth spring (44). A resisting bracket (45) is fixed on the strip-shaped plate (15). The resisting bracket (45) abuts against the positioning seat (11).

9. The gas riser air tightness testing device according to claim 8, characterized in that: A second sliding rod (47) is slidably connected to the mounting socket (9). One end of the second sliding rod (47) abuts against the end of the gas riser main body (101), and the other end of the second sliding rod (47) is fixed with a sliding bracket (48). The sliding bracket (48) is elastically connected to the test seat (1) through a ninth spring (49). One end of the sliding bracket (48) is fixed with a strip-shaped resisting block (50).

10. The gas riser air tightness testing device according to claim 9, characterized in that: One end of the rectangular rod (16) is slidably connected with a third sliding rod (51). The upper end of the third sliding rod (51) is fixed with a second resisting wedge (52). A tenth spring (46) is connected between the third sliding rod (51) and the rectangular rod (16).

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