Continuous switching pipe airtightness detection device

Abstract

The utility model provides a continuous switching pipe air tightness detection device, which belongs to the technical field of pipe air tightness detection equipment and comprises a water tank, a supporting assembly arranged in the water tank and used for supporting pipes, and pressurizing assemblies arranged at two ends of the water tank and used for being in butt joint with the pipes and pressurizing the pipes. The movable platform is arranged above the water tank; the horizontal driving device is used for driving the movable platform to move; the vertical driving device is arranged on the movable platform; the clamping assembly is arranged at the movable end of the vertical driving device; according to the continuously-switched pipe air tightness detection device, the clamping assembly can quickly take out the detected pipe in the water tank, and meanwhile, the to-be-detected pipe placed outside the water tank is placed in the water tank. The time for replacing the pipe is reduced, and the efficiency of detecting the airtightness of the pipe is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe air tightness detection equipment, and more specifically relates to a continuously switched pipe air tightness detection device. Background Art

[0002] Pipe gas tightness testing is a test method used to evaluate whether there are gas leaks in the pipeline system. This test is essential to ensure the safety and functionality of the pipeline system, especially in situations where flammable, toxic or corrosive gases are transported. Gas tightness testing can be applied to various types of pipes, including plastic pipes, metal pipes and composite pipes.

[0003] The existing method of testing pipeline air tightness is usually to inject gas (usually air or inert gas such as nitrogen) into the pipeline system until a predetermined test pressure is reached. After reaching the predetermined pressure, the pressure is kept stable for a period of time so that the system can adapt and eliminate the possible effects of pressure changes.

[0004] Specialized detection equipment (such as pressure gauges, leak detectors, or sonic detectors) is then used to monitor pressure changes in the piping system to identify potential leaks. In some cases, foam or other visual aids may be used to assist in identifying the location of the leak. The pipe can also be placed directly in a water tank to determine the air tightness of the pipe by observing whether bubbles are generated in the water tank.

[0005] The Chinese patent with publication number CN206114215U discloses a gas pipeline air tightness detection device, including a water tank, a first cylinder group, two second cylinders, two third cylinders and an air tightness detector. The detection device is provided with a clamp for placing pipes. After the pipeline is fixed, the air tightness detector is turned on, and the gas-filled pipe passes gas into the pipeline through the gas-filled hole to detect the air tightness of the pipeline. If the air tightness is good, water can be injected into the water tank to detect the air tightness by checking whether there are bubbles. Utility Model Content

[0006] One object of the utility model is to provide a continuously switched pipe air tightness detection device, comprising: a water tank, a support assembly arranged in the water tank for supporting the pipe, a pressurizing assembly arranged at both ends of the water tank for connecting the pipe and pressurizing the pipe; a movable platform arranged above the water tank, a horizontal driving device for driving the movable platform to move, a vertical driving device arranged on the movable platform, and a clamping assembly arranged at the movable end of the vertical driving device;

[0007] The clamping assembly comprises a clamping jaw and a clamping driving device for driving the clamping jaw to open and close. The clamping assembly can clamp the pipe in the water tank to the outside of the water tank, and can also clamp the pipe outside the water tank to the inside of the water tank.

[0008] Preferably, the clamping assembly comprises a fixed clamping jaw and a movable clamping jaw, the fixed clamping jaw is fixedly connected to a clamping track, and the clamping drive device can push the movable clamping jaw to translate in the clamping track.

[0009] Preferably, the fixed clamping jaw and the movable clamping jaw respectively include an upper inclined surface and a lower inclined surface, the upper inclined surface and the lower inclined surface are V-shaped and have an opening, and the openings of the fixed clamping jaw and the movable clamping jaw are opposite to each other;

[0010] When the clamping assembly clamps the pipe, the upper inclined surface and the lower inclined surface of the fixed clamping jaw and the movable clamping jaw contact the pipe.

[0011] Preferably, the pipe air tightness detection device also includes a support frame, the water tank is inside the support frame, a horizontal movable track is arranged on the support frame, the movable platform is arranged on the horizontal movable track, and the horizontal driving device can drive the movable platform to translate on the horizontal movable track.

[0012] Preferably, the horizontal driving device is an electric motor arranged on a support frame and a screw connected to the output shaft of the motor. The connecting part between the movable platform and the horizontal driving device is provided with an internal threaded connecting plate matching the screw. The motor drives the screw to rotate and drive the movable platform to translate on the horizontal movable track.

[0013] Preferably, the support assembly comprises a fixed clamping jaw and a movable clamping jaw, the fixed clamping jaw is fixedly connected to a clamping track, and the clamping drive device can push the movable clamping jaw to translate in the clamping track.

[0014] Preferably, the support assembly can clamp a plurality of pipes placed in parallel, and the clamping drive device can fix a plurality of pipes at the same time or release a plurality of pipes at the same time.

[0015] Preferably, the clamping assembly can clamp multiple pipes at the same time, and the number of pipes clamped by the clamping assembly at the same time is no more than the maximum number of pipes that can be clamped by the supporting assembly at the same time;

[0016] The clamping assembly includes a fixed clamping jaw and a movable clamping jaw, and a plurality of clamping slots are arranged on the fixed clamping jaw and the movable clamping jaw. Each clamping slot includes an upper inclined surface and a lower inclined surface. The upper inclined surface and the lower inclined surface are V-shaped and have an opening. The openings of the clamping slots on the fixed clamping jaw and the movable clamping jaw are opposite to each other.

[0017] Preferably, the pipe air tightness detection device further comprises a pipe placement rack, which comprises a clamping placement rack and an extension placement rack arranged at both ends of the clamping placement rack; the movable platform can move the clamping assembly to the top of the pipe placement rack;

[0018] The clamping and placing rack is used to place the pipes to be clamped, and the extension rack is used to support the two ends of the pipes to be clamped. The distance between the extension rack and the clamping and placing rack can be adjusted.

[0019] Preferably, the clamping and placing rack is provided with a positioning notch, the pipe to be clamped is placed in the positioning notch, and the position of the positioning notch matches the position of the clamping claw of the clamping assembly.

[0020] As described above, the continuously switching pipe air tightness detection device of the utility model does not need to manually take out the detected pipe and then manually load the pipe to be detected after the detection is completed. The clamping assembly can quickly take out the detected pipe in the water tank and put the pipe to be detected that has been placed outside the water tank into the water tank. The time for replacing pipes is reduced and the efficiency of pipe air tightness detection is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be more fully understood through the following detailed description in conjunction with the accompanying drawings, in which like elements are numbered in a similar manner, wherein:

[0022] Figure 1 This is a usage state diagram of a continuously switched pipe air tightness detection device according to an embodiment of the utility model;

[0023] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0024] Figure 3 This is a structural schematic diagram of a support frame of a continuously switched pipe air tightness detection device according to an embodiment of the utility model;

[0025] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0026] Figure 5 yes Figure 3 A partial enlarged view of point B in the middle;

[0027] Figure 6 It is a structural schematic diagram of a water tank of a continuously switched pipe air tightness detection device according to an embodiment of the utility model;

[0028] Figure 7 yes Figure 6 A partial enlarged view of the middle A;

[0029] Figure 8 yes Figure 6 A partial enlarged view of point B in the middle;

[0030] Fig. 9 It is a structural schematic diagram of a clamping assembly of a continuously switched pipe air tightness detection device according to an embodiment of the utility model;

[0031] In the figure: water tank 1, support assembly 11, movable platform 21, horizontal drive device 22, vertical drive device 23, clamping drive device 24, docking drive unit 25, fixed clamping jaw 31, movable clamping jaw 32, pipe 4, clamping and placing rack 51, extension placing rack 52, sleeve 61, air hole 62, DETAILED DESCRIPTION

[0032] The technical solution of the utility model is further described in detail below through embodiments and in combination with the accompanying drawings, but the utility model is not limited to the following embodiments.

[0033] Pipe 4 air tightness testing is a test method used to evaluate whether there is a gas leak in a pipeline system. This test is essential to ensure the safety and functionality of the pipeline system, especially in situations where flammable, toxic or corrosive gases are transported. Air tightness testing can be applied to various types of pipes 4, including plastic pipes, metal pipes and composite pipes. Existing methods for testing pipeline air tightness usually involve injecting gas (usually air or an inert gas such as nitrogen) into the pipeline system until a predetermined test pressure is reached. After reaching the predetermined pressure, the pressure is kept stable for a period of time so that the system can adapt and eliminate the possible effects of pressure changes.

[0034] Specialized detection equipment (such as a pressure gauge, leak detector, or sonic detector) is then used to monitor pressure changes in the pipe system to identify potential leaks. In some cases, foam or other visual aids may be used to assist in identifying the leak location. The pipe may also be placed directly in the water tank 1 to determine the air tightness of the pipe by observing whether bubbles are generated in the water tank 1.

[0035] However, when the pipeline air tightness detection device in the prior art detects pipes 4 in batches, it takes a lot of time to replace the pipes 4 to be detected, resulting in low efficiency.

[0036] In order to solve the above problems, the present embodiment provides a continuously switched pipe air tightness detection device, comprising: a water tank 1, a support assembly 11 arranged in the water tank 1 for supporting the pipe 4, and a pressurizing assembly arranged at both ends of the water tank 1 for connecting the pipe 4 and pressurizing the pipe 4; and further comprising a movable platform 21 arranged above the water tank 1, a horizontal driving device 22 for driving the movable platform 21 to move, a vertical driving device 23 arranged on the movable platform 21, and a clamping assembly arranged at the movable end of the vertical driving device 23;

[0037] The clamping assembly includes a clamping jaw and a clamping driving device 24 for driving the clamping jaw to open and close. The clamping assembly can clamp the pipe 4 in the water tank 1 to the outside of the water tank 1 , and can also clamp the pipe 4 outside the water tank 1 to the inside of the water tank 1 .

[0038] In this embodiment, Figure 1 to Figure 4 As shown, the water tank 1 is in a support frame, a horizontal movable track is arranged on the support frame, a movable platform 21 is arranged on the horizontal movable track, and a horizontal driving device 22 can drive the movable platform 21 to translate on the horizontal movable track.

[0039] The clamping assembly is used to clamp the pipe 4, the vertical drive device 23 is used to lift or put down the pipe 4, and the movable platform 21 is used to transfer the pipe 4 in the water tank 1 to the outside of the water tank 1 or transfer the pipe 4 outside the water tank 1 to the inside of the water tank 1.

[0040] In this embodiment, the horizontal driving device 22 that drives the movable platform 21 to move is an electric motor arranged on a support frame and a screw connected to the output shaft of the motor. The connecting part between the movable platform 21 and the horizontal driving device 22 is provided with an internal threaded connecting plate matching the screw. The motor drives the screw to rotate and can drive the movable platform 21 to translate on the horizontal movable track.

[0041] The horizontal driving device 22 can also be an electric cylinder or a pneumatic cylinder, which pushes the movable platform 21 to move through the connecting rod after being powered on or compressed air is introduced.

[0042] During the specific implementation process, the movable platform 21 includes at least two fixed working positions. The screw driven by the cylinder, electric cylinder or motor drives the movable platform 21 to reciprocate between the two workstations. When it moves to the first workstation, it clamps the pipe 4 in the water tank 1, and then moves to the second workstation to release the pipe 4 to the conveyor belt or other collection container outside the water tank 1.

[0043] Clamping components such as Fig. 9 As shown, the clamping assembly includes a fixed clamping jaw 31 and a movable clamping jaw 32. The fixed clamping jaw 31 is fixedly connected to a clamping track, and the clamping drive device 24 can push the movable clamping jaw 32 to translate in the clamping track.

[0044] The fixed clamping jaw 31 and the movable clamping jaw 32 respectively include an upper inclined surface and a lower inclined surface, the upper inclined surface and the lower inclined surface are V-shaped and have an opening, and the openings of the fixed clamping jaw 31 and the movable clamping jaw 32 are opposite to each other;

[0045] When the clamping assembly clamps the pipe 4 , the upper and lower inclined surfaces of the fixed clamping jaw 31 and the movable clamping jaw 32 are in contact with the pipe 4 .

[0046] The clamping drive device 24 of this embodiment is a cylinder, and can also be an electric cylinder or a motor driving a screw in a specific implementation.

[0047] When the movable jaw 32 is in the retracted state, it is separated from the fixed jaw 31 to create a gap into which the pipe 4 can move. When the movable jaw 32 is in the extended state, the upper and lower inclined surfaces of the fixed jaw 31 and the movable jaw 32 are in contact with the pipe 4.

[0048] The upper and lower inclined surfaces can center and clamp the pipe 4 , and determine the position of the pipe 4 while clamping the pipe 4 , so as to accurately place the pipe 4 on the supporting assembly 11 in the sink 1 .

[0049] In the specific implementation process, the pressurizing component includes a connecting unit capable of docking with both ends of the pipe 4 , and a docking driving unit 25 capable of pushing the connecting unit to be in close contact with the pipe 4 .

[0050] like Figure 6 , Figure 7 As shown, the docking unit of this embodiment is a circular sleeve 61, which is sleeved on the end of the pipe 4 and can be made of flexible materials such as rubber, which can be deformed and fit tightly.

[0051] The sleeve 61 is provided with an air hole 62 for connecting a pipeline for injecting gas for pressurization.

[0052] Furthermore, the support assembly 11 includes a fixed clamping jaw 31 and a movable clamping jaw 32 . The fixed clamping jaw 31 is fixedly connected to a clamping track, and the clamping drive device 24 can push the movable clamping jaw 32 to translate in the clamping track.

[0053] In this embodiment, Figure 8 As shown, the support assembly 11 is basically the same as the clamping assembly, and has a fixed jaw 31 and a movable jaw 32. The clamping assembly transfers the pipe 4 to the top of the support assembly 11, and then the movable jaw 32 of the support assembly 11 opens, the vertical drive device 23 extends, and the pipe 4 is placed on the support assembly 11. Then the clamping assembly opens, the vertical drive device 23 retracts, and finally the movable jaw 32 of the support assembly 11 closes to complete the placement of the pipe 4.

[0054] It is preferred that Figure 1 , Figure 2 As shown, the clamping assembly includes four sets of fixed jaws 31 and movable jaws 32 , which are parallel to the placement direction of the pipe 4 and form two clamping sections, each of which has two sets of fixed jaws 31 and movable jaws 32 .

[0055] The two sets of fixed jaws 31 and movable jaws 32 of each clamping section clamp the two sides of the pipe 4 respectively to ensure that the pipe 4 is lifted and lowered in a balanced manner.

[0056] During the specific implementation process, the two sides of the water tank 1 are the area to be inspected and the inspected area respectively. The two clamping sections are connected to each other on the same horizontal plane through a connecting frame. The horizontal driving device 22 drives the two clamping sections to translate at the same time. Each set of fixed jaws 31 and movable jaws 32 are respectively provided with a vertical driving device 23.

[0057] After the air tightness test of the pipe 4 in the water tank 1 is completed, the movable platform 21 moves to the material taking position, that is, the first clamping section is on the area to be tested, and the second clamping section is on the water tank 1.

[0058] Then the vertical drive device 23 controls the clamping section to descend, respectively clamps the pipe 4 to be inspected and the pipe 4 in the water tank 1, and then lifts them, and the movable platform 21 moves to the discharge position, that is, the first clamping section is on the water tank 1, and the second clamping section is above the inspected area.

[0059] Then the vertical drive device 23 controls the clamping section to descend, placing the pipe 4 to be inspected into the water tank 1 and placing the inspected pipe 4 into the inspected area, thereby further improving the efficiency of taking and placing the pipe 4.

[0060] Furthermore, the support assembly 11 can clamp a plurality of pipes 4 placed in parallel, and the clamping drive device 24 can fix a plurality of pipes 4 at the same time or release a plurality of pipes 4 at the same time.

[0061] The clamping assembly can clamp multiple pipes 4 at the same time, and the number of pipes 4 clamped by the clamping assembly at the same time is no more than the maximum number of pipes 4 clamped by the support assembly 11 at the same time;

[0062] The clamping assembly includes a fixed clamping jaw 31 and a movable clamping jaw 32, and a plurality of clamping slots are arranged on the fixed clamping jaw 31 and the movable clamping jaw 32, each clamping slot includes an upper inclined surface and a lower inclined surface, the upper inclined surface and the lower inclined surface are V-shaped and have an opening, and the openings of the clamping slots on the fixed clamping jaw 31 and the movable clamping jaw 32 are opposite to each other.

[0063] In this embodiment, Fig. 9 As shown, the clamping assembly of this embodiment can clamp 4 pipes 4 at the same time, multiple pipes 4 can be detected in the water tank 1 at the same time, and the clamping assembly can replace multiple pipes 4 at the same time, further improving the efficiency of taking and placing the pipes 4.

[0064] Furthermore, the clamping and placing frame 51 is provided with a positioning notch, and the pipe 4 to be clamped is placed in the positioning notch, and the position of the positioning notch matches the position of the clamping claw of the clamping assembly.

[0065] The positioning notches may be V-shaped notches, and the gaps between the notches are consistent with the spacing between the clamping assembly and the supporting assembly 11 for placing the pipe 4 .

[0066] In a specific implementation process, the pipe 4 is manually placed in the slot, and the clamping assembly can locate and clamp the pipe 4 in the slot.

[0067] Furthermore, the pipe air tightness detection device further comprises a pipe placement rack, which comprises a clamping placement rack 51 and an extension placement rack 52 arranged at both ends of the clamping placement rack 51; the movable platform 21 can move the clamping assembly to the top of the pipe placement rack;

[0068] The clamping and placing rack 51 is used to place the pipe 4 to be clamped, and the extending rack 52 is used to support the two ends of the pipe 4 to be clamped. The distance between the extending rack 52 and the clamping and placing rack 51 can be adjusted.

[0069] The above-mentioned notches are arranged on the clamping placement rack 51, and the extension placement rack 52 is used to support the two ends of the pipe to prevent the pipe from being deformed. The extension placement rack 52 can also adjust its position according to the length of the pipe, and can also be used as a reference for the placement position of the pipe, for example, placing the pipe end near the edge of the extension placement rack 52 to prevent the pipe from deviating too far from the center and being unable to be placed in the sink 1.

[0070] The various embodiments of the present disclosure have been described above, and the above description is exemplary and not exhaustive, and the scope of the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, many modifications and changes are obvious to those of ordinary skill in the art. In other words, those of ordinary skill in the art can make various changes and improvements to the present invention in form and detail, and these are considered to fall within the scope of protection of the present invention. The choice of terms used herein is intended to best explain the principles of the various embodiments, practical applications, or improvements to the technology in the market, or to enable those of ordinary skill in the art to understand the various embodiments disclosed herein.

Claims

1. A continuously switching pipe air tightness detection device, comprising: A water tank (1), a support assembly (11) arranged in the water tank (1) for supporting a pipe (4), and a pressurizing assembly arranged at both ends of the water tank (1) for connecting the pipe (4) and applying pressure to the pipe (4); the water tank (1) further comprises a movable platform (21) arranged above the water tank (1), a horizontal driving device (22) for driving the movable platform (21) to move, a vertical driving device (23) arranged on the movable platform (21), and a clamping assembly arranged at a movable end of the vertical driving device (23); The clamping assembly comprises a clamping jaw and a clamping drive device (24) for driving the clamping jaw to open and close. The clamping assembly can clamp a pipe (4) in the water tank (1) to the outside of the water tank (1), and can also clamp a pipe (4) outside the water tank (1) to the inside of the water tank (1).

2. A continuously switching pipe air tightness detection device according to claim 1, characterized in that: The clamping assembly comprises a fixed clamping jaw (31) and a movable clamping jaw (32); the fixed clamping jaw (31) is fixedly connected to a clamping track; and the clamping drive device (24) can push the movable clamping jaw (32) to translate in the clamping track.

3. A continuously switching pipe air tightness detection device according to claim 2, characterized in that: The fixed clamping jaw (31) and the movable clamping jaw (32) respectively include an upper inclined surface and a lower inclined surface, the upper inclined surface and the lower inclined surface are V-shaped and have an opening, and the openings of the fixed clamping jaw (31) and the movable clamping jaw (32) are opposite to each other; When the clamping assembly clamps the pipe (4), the upper inclined surfaces and the lower inclined surfaces of the fixed clamping jaw (31) and the movable clamping jaw (32) are in contact with the pipe (4).

4. The continuously switching pipe air tightness detection device according to claim 1, characterized in that: The pipe (4) air tightness detection device also includes a support frame, the water tank (1) is inside the support frame, a horizontal movable track is arranged on the support frame, the movable platform (21) is arranged on the horizontal movable track, and the horizontal driving device (22) can drive the movable platform (21) to move horizontally on the horizontal movable track.

5. A continuously switching pipe air tightness detection device according to claim 4, characterized in that: The horizontal driving device (22) is a motor arranged on a support frame and a screw connected to the output shaft of the motor. The connecting portion between the movable platform (21) and the horizontal driving device (22) is provided with an internal threaded connecting plate matching the screw. The motor drives the screw to rotate and can drive the movable platform (21) to translate on the horizontal movable track.

6. The continuously switching pipe air tightness detection device according to claim 1, characterized in that: The support assembly (11) comprises a fixed clamping jaw (31) and a movable clamping jaw (32); the fixed clamping jaw (31) is fixedly connected to a clamping track; and the clamping drive device (24) is capable of pushing the movable clamping jaw (32) to translate in the clamping track.

7. A continuously switching pipe air tightness detection device according to claim 6, characterized in that: The support assembly (11) can clamp a plurality of pipes (4) placed in parallel, and the clamping drive device (24) can simultaneously fix the plurality of pipes (4) or simultaneously release the plurality of pipes (4).

8. The continuously switching pipe air tightness detection device according to claim 7, characterized in that: The clamping assembly is capable of clamping a plurality of pipes (4) at the same time, and the number of pipes (4) clamped by the clamping assembly at the same time is no more than the maximum number of pipes (4) that can be clamped by the supporting assembly (11) at the same time; The clamping assembly comprises a fixed clamping jaw (31) and a movable clamping jaw (32), wherein a plurality of clamping slots are arranged on the fixed clamping jaw (31) and the movable clamping jaw (32), wherein each clamping slot comprises an upper inclined surface and a lower inclined surface, respectively, wherein the upper inclined surface and the lower inclined surface are V-shaped and have an opening, and the openings of the clamping slots on the fixed clamping jaw (31) and the movable clamping jaw (32) are opposite to each other.

9. The continuously switching pipe air tightness detection device according to claim 1, characterized in that: The air tightness detection device for the pipe (4) further comprises a pipe placement rack, which comprises a clamping placement rack (51) and an extension placement rack (52) arranged at both ends of the clamping placement rack (51); the movable platform (21) is capable of moving the clamping assembly to the top of the pipe placement rack; The clamping and placing rack (51) is used to place the pipe (4) to be clamped, and the extending placing rack (52) is used to support the two ends of the pipe (4) to be clamped. The distance between the extending placing rack (52) and the clamping and placing rack (51) can be adjusted.

10. The continuously switching pipe air tightness detection device according to claim 9, characterized in that: The clamping and placing frame (51) is provided with a positioning notch, and the pipe (4) to be clamped is placed in the positioning notch, and the position of the positioning notch matches the position of the clamping claw of the clamping assembly.

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