Gas pipeline leakage detection device

Abstract

The invention relates to the technical field of gas pipeline detection, and discloses a gas pipeline leakage detection device which comprises a supporting plate, a rotating mechanism, a clamping mechanism and a detection mechanism, the two ends of the supporting plate are provided with a first rotating part and a second rotating part respectively, and the rotating mechanism can be connected with the first rotating part or the second rotating part. The driving mechanism is connected with the supporting plate and used for driving the supporting plate to rotate around the first rotating part or the second rotating part, the clamping mechanism is connected with the first rotating part and used for clamping the gas pipeline, and the detection mechanism is connected with the second rotating part and used for clamping the gas pipeline, driving the whole device to move and detecting the gas pipeline. Through mutual cooperation of the supporting plate, the first rotating part, the second rotating part, the rotating mechanism, the clamping mechanism and the detection mechanism, the device can directly cross a flange plate, manual movement by a worker is not needed, the labor intensity of the worker is reduced, and the working efficiency of detection is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas pipeline detection, and particularly to a gas pipeline leakage detection device. Background Art

[0002] In the gas industry, safety accidents caused by gas leakage are countless. Gas leakage not only causes losses of materials and energy, but also causes environmental pollution. More importantly, it will trigger accidents and hazards, resulting in casualties. There are many reasons for gas leakage. Long-term use of gas pipelines will cause the rubber hoses to age, posing a potential hazard of gas leakage. Long-term contact of gas pipelines with water or soil will also cause pipeline corrosion, leading to gas leakage. Therefore, it is very necessary to regularly check whether there is gas leakage in gas pipelines.

[0003] Currently, common gas pipeline leakage detection devices can move along the length direction of gas pipelines. However, the flange plates on gas pipelines will block the movement of gas pipeline leakage detection devices. It is necessary for workers to manually move the whole device to the other side of the flange plate to continue the leakage detection of gas pipelines. This not only increases the labor intensity of workers, but also reduces the working efficiency of detection. Summary of the Invention

[0004] The present application discloses a gas pipeline leakage detection device to solve the problems of high labor intensity of workers and reduced working efficiency of detection in the prior art.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] A gas pipeline leakage detection device, comprising:

[0007] A support plate, with a first rotating part and a second rotating part respectively provided at both ends of the support plate;

[0008] A rotating mechanism, which can be connected to the first rotating part or the second rotating part, and is used to drive the support plate to rotate around the first rotating part or the second rotating part;

[0009] A clamping mechanism, which is connected to the first rotating part and is used to clamp the gas pipeline;

[0010] A detection mechanism, which is connected to the second rotating part, is used to clamp the gas pipeline, drive the whole device to move, and detect the gas pipeline.

[0011] The technical solutions adopted by the present invention can achieve the following beneficial effects:

[0012] When the detection mechanism moves to the flange, the gas pipeline on the other side of the flange is clamped by the clamping mechanism. The detection mechanism releases the gas pipeline, and then is first connected to the first rotating part through the rotating mechanism, so that the rotating mechanism drives the support plate, the second rotating part and the detection mechanism to rotate around the first rotating part, so that the second rotating part and the detection mechanism rotate to the other side of the flange. Then, the gas pipeline is clamped again by the detection mechanism, the clamping mechanism releases the gas pipeline, and is connected to the second rotating part through the rotating mechanism, so that the rotating mechanism drives the support plate, the first rotating part and the clamping mechanism to rotate around the second rotating part, preparing for the next obstacle crossing when the device moves to the flange. Through the mutual cooperation of the support plate, the first rotating part, the second rotating part, the rotating mechanism, the clamping mechanism and the detection mechanism, the device can directly cross the flange without manual movement by the staff, thus reducing the labor intensity of the staff and improving the detection work efficiency. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a front view structural schematic diagram disclosed in some embodiments of the present application;

[0015] Figure 2 It is a top view structural schematic diagram disclosed in some embodiments of the present application;

[0016] Figure 3 It is a bottom view structural schematic diagram of the cooperation of the support plate, the first rotating part, the second rotating part and the rotating mechanism disclosed in some embodiments of the present application;

[0017] Figure 4 It is a left view sectional structural schematic diagram of the support plate and the rotating mechanism disclosed in some embodiments of the present application;

[0018] Figure 5 It is a front view sectional structural schematic diagram of one of the embodiments disclosed in the present application;

[0019] Figure 6 It is a front view sectional structural schematic diagram of another one of the embodiments disclosed in the present application;

[0020] Figure 7 It is a left view structural schematic diagram of the clamping mechanism disclosed in some embodiments of the present application;

[0021] Figure 8It is a schematic right - view structure diagram of a walking component disclosed in some embodiments of the present application;

[0022] Figure 9 It is Figure 5 an enlarged structure diagram of part A in

[0023] Figure 10 It is Figure 5 an enlarged structure diagram of part B in

[0024] Figure 11 It is Figure 6 an enlarged structure diagram of part C in

[0025] Figure 12 It is a schematic left - view structure diagram of a detection component disclosed in some embodiments of the present application;

[0026] Figure 13 It is a schematic top - view structure diagram of a detection component disclosed in some embodiments of the present application.

[0027] In the figure:

[0028] 100 - support plate; 110 - first rotating part; 111 - first driven gear; 112 - second telescopic member; 120 - second rotating part; 121 - second driven gear; 122 - third telescopic member; 130 - through - hole;

[0029] 200 - rotating mechanism; 210 - moving component; 211 - first telescopic member; 212 - moving plate; 213 - chute; 214 - slider; 220 - driving component; 221 - first driving member; 222 - first driving shaft; 223 - first driving gear;

[0030] 300 - clamping mechanism; 310 - telescopic part; 311 - first connecting plate; 312 - connecting column; 313 - mounting plate; 314 - fourth telescopic member; 315 - second connecting plate; 320 - clamping part; 321 - clamping plate; 322 - connecting rod; 323 - rubber strip;

[0031] 400 - Detection mechanism; 410 - U-shaped plate; 420 - Traveling assembly; 421 - Distance adjustment part; 4211 - Support block; 4212 - Bidirectional threaded rod; 4213 - Second driving part; 4214 - Threaded block; 4215 - Guide rod; 422 - Traveling roller; 423 - Third driving part; 430 - Detection assembly; 431 - Bearing plate; 432 - Rotating part; 4321 - Arc-shaped fixed ring; 4322 - Arc-shaped moving ring; 4323 - Gear groove; 4324 - Arc-shaped protrusion; 433 - Driving part; 4331 - Mounting bracket; 4332 - Fourth driving part; 4333 - Second driving shaft; 4334 - Second driving gear; 4335 - First synchronous pulley; 4336 - Second synchronous pulley; 4337 - Toothed belt; 4338 - Connecting shaft; 4339 - Third driven gear; 434 - Gas sensor; 435 - Fifth telescopic part; 436 - Ear plate; 437 - Opening;

[0032] 10 - Controller; 20 - Alarm. Detailed implementation mode

[0033] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0034] The terms "first", "second", "third", "fourth", "fifth", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", "third", "fourth", "fifth", etc. are usually of the same category, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0035] In the actual use process, the inventor found that in the gas pipeline leakage detection device in the related art, due to the long overall length of the gas pipeline, flange plates are used to connect two adjacent sections of gas pipelines. When the common gas pipeline leakage detection device moves to the flange plate, it will be blocked by the flange plate and cannot move forward, and thus cannot continue to detect the leakage of the gas pipeline. It is necessary for the staff to disassemble the whole device, then manually move it to the other side of the flange plate and reinstall it before continuing to detect the leakage of the gas pipeline. Therefore, the labor intensity of the staff is increased and the detection work efficiency is reduced.

[0036] The following combines the attached Figures 1 to 13 , and through specific embodiments and their application scenarios, a gas pipeline leakage detection device provided by the present application will be described in detail.

[0037] A gas pipeline leakage detection device includes: a support plate 100, a rotating mechanism 200, a clamping mechanism 300, and a detection mechanism 400;

[0038] Both ends of the support plate 100 are respectively provided with a first rotating part 110 and a second rotating part 120;

[0039] Specifically, the support plate 100 is horizontally arranged; through holes 130 are formed through the top and bottom of the support plate 100; both ends of the bottom of the support plate 100 are respectively provided with a first rotating part 110 and a second rotating part 120; the through holes 130 are located between the first rotating part 110 and the second rotating part 120, and the through holes 130 can be in a waist shape.

[0040] The rotating mechanism 200 can be connected to the first rotating part 110 or the second rotating part 120, and is used to drive the support plate 100 to rotate around the first rotating part 110 or the second rotating part 120;

[0041] The clamping mechanism 300 is connected to the first rotating part 110 and is used to clamp the gas pipeline;

[0042] The detection mechanism 400 is connected to the second rotating part 120, and is used to clamp the gas pipeline, drive the whole device to move, and detect the gas pipeline.

[0043] When the inspection mechanism 400 moves to the flange, the clamping mechanism 300 clamps the gas pipeline on the other side of the flange. The inspection mechanism 400 releases the gas pipeline, and then is first connected to the first rotating part 110 through the rotating mechanism 200. Thus, the rotating mechanism 200 drives the support plate 100, the second rotating part 120, and the inspection mechanism 400 to rotate around the first rotating part 110, so that the second rotating part 120 and the inspection mechanism 400 rotate to the other side of the flange. Then, the inspection mechanism 400 clamps the gas pipeline again, the clamping mechanism 300 releases the gas pipeline, and the rotating mechanism 200 is connected to the second rotating part 120. Thus, the rotating mechanism 200 drives the support plate 100, the first rotating part 110, and the clamping mechanism 300 to rotate around the second rotating part 120, preparing for the next obstacle crossing when the device moves to the flange.

[0044] Referring to Figures 1 to 6 , in this embodiment, the first rotating part 110 includes a first driven gear 111 installed at one end of the support plate 100 and a second telescopic member 112 rotatably installed on the first driven gear 111. The telescopic end of the second telescopic member 112 is connected to the clamping mechanism 300;

[0045] Specifically, the first driven gear 111 is horizontally installed at one end of the bottom of the support plate 100; a vertically arranged second telescopic member 112 is rotatably installed on the axial direction of the first driven gear 111, and the second telescopic member 112 is preferably an electric telescopic rod.

[0046] The second rotating part 120 includes a second driven gear 121 installed at the other end of the support plate 100 and a third telescopic member 122 rotatably installed on the second driven gear 121. The telescopic end of the third telescopic member 122 is connected to the inspection mechanism 400.

[0047] Specifically, the second driven gear 121 is horizontally installed at the other end of the bottom of the support plate 100; a vertically arranged third telescopic member 122 is rotatably installed on the axial direction of the second driven gear 121, and the third telescopic member 122 is preferably an electric telescopic rod.

[0048] Referring to Figures 1 to 6 , in this embodiment, the rotating mechanism 200 includes a moving component 210 and a driving component 220;

[0049] The moving component 210 is slidably connected to the support plate 100, the driving component 220 is connected to the moving component 210, and the moving component 210 is used to drive the driving component 220 to move back and forth between the two ends of the support plate 100;

[0050] The driving component 220 can be connected to the first rotating part 110 or the second rotating part 120, and is used to drive the support plate 100 to rotate around the first rotating part 110 or the second rotating part 120.

[0051] Referring to Figure 1 and Figure 2 in this embodiment, the moving component 210 includes a first telescopic member 211 installed at one end of the support plate 100. A moving plate 212 slidably connected to the support plate 100 is connected to the telescopic end of the first telescopic member 211, and the first driving component 220 is connected to the moving plate 212.

[0052] Specifically, the first telescopic member 211 is preferably an electric telescopic rod; the first telescopic member 211 is horizontally arranged and installed at one end of the top of the support plate 100; two chutes 213 are symmetrically and parallel to both sides of the through hole 130 opened on the top of the support plate 100. Two sliders 214 slidably matched with the chutes 213 are installed on both sides of the bottom of the moving plate 212. Through the sliding cooperation of the chutes 213 and the sliders 214, the stability of the movement of the moving plate 212 is improved.

[0053] Referring to Figure 3 and Figure 4 in this embodiment, the first driving component 220 includes a first driving member 221 and a first driving gear 223;

[0054] The first driving member 221 is installed on the moving plate 212. A first driving shaft 222 is connected to the output end of the first driving member 221. A first driving gear 223 is installed on the first driving shaft 222, and the first driving gear 223 can be meshed and connected with the first driven gear 111 or the second driven gear 121.

[0055] Specifically, the first driving member 221 is preferably a micro motor; the first driving member 221 is vertically installed on the top of the moving plate 212; the first driving shaft 222 penetrates through the moving plate 212, and the first driving shaft 222 is located in the through hole 130. There is a gap between the first driving shaft 222 and the through hole 130; the first driving gear 223 is located below the support plate 100; the first driving shaft 222 is rotatably connected to the moving plate 212;

[0056] Through the telescopic action of the first telescopic member 211, the moving plate 212 is driven to move along the through hole 130, thereby driving the first driving member 221, the first driving shaft 222 and the first driving gear 223 to move along the through hole 130, so that the first driving gear 223 can be meshed and connected with the first driven gear 111 or the second driven gear 121.

[0057] Referring to Figures 5 to 7 in this embodiment, the clamping mechanism 300 includes a telescopic portion 310 and a clamping portion 320;

[0058] The telescopic part 310 is connected to the telescopic end of the second telescopic member 112. A clamping part 320 is connected to the telescopic end of the telescopic part 310. The telescopic part 310 is used to drive the opening or closing of the clamping part 320, so that the clamping part 320 loosens or clamps the gas pipeline.

[0059] Specifically, the telescopic part 310 includes a first connecting plate 311 connected to the telescopic end of the second telescopic member 112. Two connecting columns 312 are installed at both ends of the bottom of the first connecting plate 311. The same mounting plate 313 is connected to the bottoms of the two connecting columns 312. A fourth telescopic member 314 is installed on the top of the mounting plate 313. The fourth telescopic member 314 is vertically arranged. The fourth telescopic member 314 is preferably an electric telescopic rod. The telescopic end of the fourth telescopic member 314 penetrates through the mounting plate 313 and extends below the mounting plate 313. The telescopic end of the fourth telescopic member 314 is slidably connected to the mounting plate 313. A second connecting plate 315 is installed on the telescopic end of the fourth telescopic member 314;

[0060] The clamping part 320 includes clamping plates 321 rotatably connected to both sides of the mounting plate 313. The clamping plates 321 are composed of a straight part and an arc part. The straight parts of the two clamping plates 321 are respectively rotatably connected to both sides of the mounting plate 313. The other end of the straight part of the clamping plate 321 is connected with an arc part. One ends of connecting rods 322 are rotatably connected to both sides of the second connecting plate 315. The other ends of the connecting rods 322 are rotatably connected to the straight parts of the clamping plates 321. A plurality of rubber strips 323 are installed on the inner sides of the arc parts. The rubber strips 323 are evenly arranged. Through the arrangement of the rubber strips 323, the friction between the clamping plates 321 and the gas pipeline is increased, and the clamping stability is improved;

[0061] When the fourth telescopic member 314 extends, it drives the second connecting plate 315 to descend, thereby driving the connecting rods 322 to open the clamping plates 321, so that the clamping plates 321 move away from each other and loosen the gas pipeline; when the fourth telescopic member 314 shortens, it drives the second connecting plate 315 to rise, thereby driving the connecting rods 322 to close the clamping plates 321, so that the clamping plates 321 move closer to each other to clamp the gas pipeline.

[0062] Refer to Figures 8 to 13 , in this embodiment, the detection mechanism 400 includes a U-shaped plate 410, a traveling component 420 and a detection component 430;

[0063] The U-shaped plate 410 is connected to the telescopic end of the third telescopic member 122;

[0064] The traveling component 420 is connected inside the U-shaped plate 410. The traveling component 420 is used to clamp the gas pipeline and drive the whole device to move;

[0065] The detection component 430 is connected inside the U-shaped plate 410. The detection component 430 is used to detect the gas pipeline.

[0066] Specifically, the U-shaped plate 410 is inverted, and the telescopic end of the third telescopic member 122 is connected to the top of the U-shaped plate 410; one or two sets of detection components 430 can be provided, located on one side or both sides of the walking component 420; in this embodiment, there are two sets of detection components 430, symmetrically located on both sides of the walking component 420, increasing the detection range of the detection component 430. By setting two sets of detection components 430, the detection accuracy is improved, and the practicability of the device is enhanced.

[0067] Referring to Figure 8 and Figure 9 , in this embodiment, the walking component 420 includes a distance adjustment part 421, two walking rollers 422 and a third driving member 423;

[0068] Two walking rollers 422 that can approach or move away from each other are respectively connected to both sides of the distance adjustment part 421. The distance adjustment part 421 is used to adjust the distance between the two walking rollers 422 so that the two walking rollers 422 clamp the gas pipeline;

[0069] Specifically, the distance adjustment part 421 includes support blocks 4211 symmetrically installed on both sides of the inner top of the U-shaped plate 410. The number of support blocks 4211 is two. A bidirectional threaded rod 4212 is rotatably installed between the two support blocks 4211. One end of the bidirectional threaded rod 4212 penetrates the support block 4211 and is connected to the output end of the second driving member 4213. The second driving member 4213 is preferably a micro motor. Threaded blocks 4214 are threadedly connected to both ends of the bidirectional threaded rod 4212. A guide rod 4215 parallel to the bidirectional threaded rod 4212 is also installed between the two support blocks 4211. The guide rod 4215 penetrates the two threaded blocks 4214, and the guide rod 4215 is slidably matched with the threaded blocks 4214. Through the setting of the guide rod 4215, the stability of the movement of the threaded blocks 4214 is improved; a walking roller 422 is rotatably installed at the bottom of the threaded block 4214.

[0070] One of the walking rollers 422 is connected to the third driving member 423. The third driving member 423 is used to drive the walking roller 422 so that the walking roller 422 drives the whole device to move along the gas pipeline.

[0071] Specifically, the third driving member 423 is preferably a micro motor that can rotate forward and backward; the third driving member 423 is vertically arranged. The third driving member 423 is installed on the top of one of the threaded blocks 4214. The output end of the third driving member 423 is connected to the rotating shaft of one of the walking rollers 422. The rotating shaft penetrates the corresponding threaded block 4214, and the rotating shaft is rotatably connected to the threaded block 4214; the diameter of the middle part of the walking roller 422 gradually increases from both ends, increasing the contact area between the walking roller 422 and the gas pipeline and improving the stability of the movement of the walking roller 422.

[0072] The second driving member 4213 drives the bidirectional threaded rod 4212 to rotate, thereby driving the two threaded blocks 4214 to approach or move away from each other, and further driving the two walking rollers 422 to approach or move away from each other, adjusting the distance between the two walking rollers 422. When the two walking rollers 422 are in contact with the outer wall of the gas pipeline (i.e., the two walking rollers 422 clamp the gas pipeline), the third driving member 423 drives one of the walking rollers 422 to rotate, and the walking roller 422 moves along the gas pipeline, and the other walking roller 422 moves accordingly, so that the whole device moves.

[0073] Referring to Figures 10 to 13 , in this embodiment, the detection assembly 430 includes a carrier plate 431, a rotating part 432, a driving part 433 and a gas sensor 434;

[0074] The carrier plate 431 is slidably connected to the inside of the U-shaped plate 410;

[0075] Specifically, ear plates 436 are installed on both sides of the carrier plate 431, and fifth telescopic members 435 are installed on both sides of the inner top of the U-shaped plate 410. The fifth telescopic members 435 are preferably electric telescopic rods. The fifth telescopic members 435 are vertically arranged, and the telescopic ends of the fifth telescopic members 435 are connected to the ear plates 436.

[0076] The rotating part 432 is connected to one side of the carrier plate 431, and a plurality of gas sensors 434 are connected to the rotating part 432. The rotating part 432 is used to drive the gas sensors 434 to rotate around the gas pipeline, so that the gas sensors 434 perform all-round detection on the gas pipeline, improving the detection work efficiency;

[0077] Specifically, the gas sensor 434 is an existing device, and the specific working principle will not be elaborated too much;

[0078] The driving part 433 is connected to the other side of the carrier plate 431, and the driving part 433 is used to drive the rotating part 432 to rotate.

[0079] Specifically, the driving part 433 includes a second driving gear 4334 and a third driven gear 4339 symmetrically installed at both ends of the upper part of one side of the bearing plate 431. The second driving gear 4334 and the third driven gear 4339 are connected to both ends of the upper part of the rotating part 432 and can drive the rotating part 432 to rotate. A second driving shaft 4333 is installed on the second driving gear 4334. The other end of the second driving shaft 4333 penetrates the bearing plate 431 and is connected to the output end of the fourth driving member 4332. The fourth driving member 4332 is preferably a micro motor. An installation frame 4331 is installed on one side of the bearing plate 431 where the fourth driving member 4332 is located. The installation frame 4331 is L-shaped. The fourth driving member 4332 is installed on the installation frame 4331. The other end of the second driving shaft 4333 penetrates the bearing plate 431 and the installation frame 4331 and is connected to the output end of the fourth driving member 4332. The second driving shaft 4333 is rotatably connected between the bearing plate 431 and the installation frame 4331. A first synchronous pulley 4335 is installed on the second driving shaft 4333 between the installation frame 4331 and the bearing plate 431. A connecting shaft 4338 is installed on the third driven gear 4339. The other end of the connecting shaft 4338 penetrates the bearing plate 431 and is connected to the second synchronous pulley 4336. A toothed belt 4337 is wound around the outer surfaces of the first synchronous pulley 4335 and the second synchronous pulley 4336. In this embodiment, the second driving gear 4334 and the first synchronous pulley 4335 are located on both sides of the bearing plate 431, and the third driven gear 4339 and the second synchronous pulley 4336 are located on both sides of the bearing plate 431. The first synchronous pulley 4335 and the second synchronous pulley 4336 are located at both ends of the upper part of the other side of the bearing plate 431.

[0080] Referring to Figures 10 to 13 , in this embodiment, the rotating part 432 includes an arc-shaped fixed ring 4321, an arc-shaped moving ring 4322, a gear groove 4323, and an arc-shaped protrusion 4324;

[0081] The arc-shaped fixed ring 4321 is installed on one side of the bearing plate 431. Specifically, the arc-shaped fixed ring 4321 and the second driving gear 4334 and the third driven gear 4339 are located on the same side of the bearing plate 431;

[0082] The arc-shaped moving ring 4322 is slidably installed on the outer surface of the arc-shaped fixed ring 4321;

[0083] The gear groove 4323 is provided on the outer surface of the arc-shaped moving ring 4322. The gear groove 4323 is connected to the driving part 433, and the driving part 433 is used to drive the gear groove 4323 so that the arc-shaped moving ring 4322 rotates around the gas pipeline.

[0084] Specifically, both the second driving gear 4334 and the third driven gear 4339 can mesh with the gear groove 4323; both the arc-shaped fixed ring 4321 and the arc-shaped moving ring 4322 are arranged in an arc shape. A sliding groove is formed on the outer surface of the arc-shaped fixed ring 4321, and a sliding block is installed on the inner side wall of the arc-shaped moving ring 4322. The shapes of the sliding groove and the sliding block match each other. Preferably, the shapes of the sliding groove and the sliding block are arranged in a T shape, and the sliding groove and the sliding block are in sliding fit, enabling the arc-shaped moving ring 4322 to rotate on the outer surface of the arc-shaped fixed ring 4321. Moreover, through the arrangement of the sliding groove and the sliding block, when the arc-shaped moving ring 4322 rotates, the arc-shaped moving ring 4322 and the arc-shaped fixed ring 4321 are prevented from separating.

[0085] Both the arc-shaped fixed ring 4321 and the inner side of the bearing plate 431 are provided with openings 437. The second driving gear 4334 and the third driven gear 4339 are located on both sides of the opening 437; similar to the arc-shaped fixed ring 4321, the arc-shaped moving ring 4322 has an opening 437. The distance between the second driving gear 4334 and the third driven gear 4339 is greater than the maximum horizontal distance of the opening 437. That is, when one of the second driving gear 4334 and the third driven gear 4339 is located at the opening 437 of the arc-shaped moving ring 4322, the other can cooperate with the gear groove 4323 of the arc-shaped moving ring 4322 to realize the rotation of the arc-shaped moving ring 4322; through the arrangement of the opening 437, the gas pipeline can be placed inside the arc-shaped fixed ring 4321 through the opening 437, enabling the subsequent arc-shaped moving ring 4322 to rotate around the gas pipeline.

[0086] The arc-shaped protrusion 4324 is installed on the side of the arc-shaped moving ring 4322 away from the bearing plate 431, and several gas sensors 434 are installed inside the arc-shaped protrusion 4324.

[0087] Specifically, the arc-shaped protrusion 4324 protrudes from the arc-shaped fixed ring 4321, and several gas sensors 434 are installed inside the part where the arc-shaped protrusion 4324 protrudes from the arc-shaped fixed ring 4321; the arc-shaped protrusion 4324 is also arranged in an arc shape. In this embodiment, the number of gas sensors 434 can be set to 3, which improves the detection accuracy and at the same time improves the detection efficiency.

[0088] Start the fourth driving member 4332. The fourth driving member 4332 drives the second driving shaft 4333 to rotate, synchronously driving the first synchronous belt pulley 4335 and the second driving gear 4334 to rotate. The first synchronous belt pulley 4335 drives the second synchronous belt pulley 4336 to rotate through the toothed belt 4337. The second synchronous belt pulley 4336 drives the third driven gear 4339 to rotate through the connecting shaft 4338. The rotation of the second driving gear 4334 and the third driven gear 4339 drives the arc-shaped moving ring 4322 to rotate, thereby driving the arc-shaped protrusion 4324 to rotate, and further driving the gas sensors 434 to rotate to detect the gas pipeline.

[0089] Refer to Figure 1 、 Figure 5 and Figure 6 In this embodiment, it further includes a controller 10 and an alarm 20 installed on the top of the U-shaped plate 410.

[0090] Specifically, the first driving member 221, the second driving member 4213, the third driving member 423, the fourth driving member 4332, the first telescopic member 211, the second telescopic member 112, the third telescopic member 122, the fourth telescopic member 314, the fifth telescopic member 435 and the alarm 20 of the device are all electrically connected to the controller 10.

[0091] Working principle: During normal operation, the second telescopic member 112 does not extend, the third telescopic member 122 extends, the clamping mechanism 300 does not clamp the gas pipeline, the third telescopic member 122 drives the U-shaped plate 410 to descend until the middle of the traveling roller 422 is located on both sides of the gas pipeline. At the same time, the gas pipeline enters the inner sides of the arc-shaped fixed ring 4321 and the bearing plate 431 through the opening 437. The second driving member 4213 drives the bidirectional threaded rod 4212 to rotate, thereby driving the two threaded blocks 4214 to approach each other, and further driving the two traveling rollers 422 to approach each other, adjusting the distance between the two traveling rollers 422 so that the two traveling rollers 422 are in contact with the outer wall of the gas pipeline. Through the adjustment of the fifth telescopic member 435, the gas pipeline is located within the arc-shaped fixed ring 4321. Then, the third driving member 423 drives one of the traveling rollers 422 to rotate, and the traveling roller 422 moves along the gas pipeline, and the other traveling roller 422 moves accordingly, so that the whole device moves. At the same time, the fourth driving member 4332 is started, the fourth driving member 4332 drives the second driving shaft 4333 to rotate, synchronously driving the first synchronous pulley 4335 and the second driving gear 4334 to rotate. The first synchronous pulley 4335 drives the second synchronous pulley 4336 to rotate through the toothed belt 4337. The second synchronous pulley 4336 drives the third driven gear 4339 to rotate through the connecting shaft 4338. The rotation of the second driving gear 4334 and the third driven gear 4339 drives the arc-shaped moving ring 4322 to rotate, thereby driving the arc-shaped protrusion 4324 to rotate, and further driving the gas sensor 434 to rotate, performing a full-range detection of the gas pipeline. When abnormal data is detected, the signal is transmitted to the controller 10, and the controller 10 makes the alarm 20 work to issue an alarm to remind the staff to check.

[0092] When it is necessary to cross the flange, the second telescopic member 112 extends, driving the clamping mechanism 300 to descend. When it extends to a proper position, by shortening the fourth telescopic member 314, the second connecting plate 315 is driven to rise, thereby driving the connecting rod 322 to close the clamping plates 321, so that the clamping plates 321 approach each other to clamp the gas pipeline on the other side of the flange. Then, the second driving member 4213 drives the two threaded blocks 4214 to move away from each other, releasing the gas pipeline, and by retracting the third telescopic member 122, the detecting mechanism 400 is driven to rise. The moving plate 212 is driven by the first telescopic member 211 to move along the through hole 130, so that the first driving gear 223 meshes with the first driven gear 111. The first driving gear 223 is driven to rotate by the first driving member 221, so that the support plate 100, the second rotating part 120 and the detecting mechanism 400 rotate around the first driven gear 111, and the clamping mechanism 300 and the second telescopic member 112 do not rotate. Thus, the second rotating part 120 and the detecting mechanism 400 are rotated to the other side of the flange. Then, by extending the third telescopic member 122, the two threaded blocks 4214 are driven to approach each other by the second driving member 4213, so that the two traveling rollers 422 are brought into contact with the outer wall of the gas pipeline again. Then, by extending the fourth telescopic member 314, the second connecting plate 315 is driven to descend, thereby driving the connecting rod 322 to open the clamping plates 321, so that the clamping plates 321 move away from each other, releasing the gas pipeline. By retracting the second telescopic member 112, the clamping mechanism 300 is driven to rise. Then, the moving plate 212 is driven by the first telescopic member 211 to move along the through hole 130, so that the first driving gear 223 meshes with the second driven gear 121. The first driving gear 223 is driven to rotate by the first driving member 221, so that the support plate 100, the first rotating part 110 and the clamping mechanism 300 rotate around the second driven gear 121, and the detecting mechanism 400 and the third telescopic member 122 do not rotate. Thus, the first rotating part 110 and the clamping mechanism 300 return to their positions during normal operation, preparing for the next obstacle crossing when the device moves to the flange. And by the forward and reverse rotation of the third driving member 423, when the detecting mechanism 400 has rotated to the other side of the flange, the third driving member 423 drives the traveling rollers 422 to first detect the gas pipeline between the detecting mechanism 400 and the flange, and then move along the gas pipeline to the next flange.

[0093] The present invention enables the device to directly cross the flange without manual movement by the staff, thereby reducing the labor intensity of the staff and improving the work efficiency of detection.

[0094] It should be noted that, in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or apparatus that includes a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the statement "including one..." does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes such element.

[0095] In addition, it should be pointed out that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0096] As described above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. A gas pipeline leakage detection device, characterized in that: include: A support plate (100), wherein two ends of the support plate (100) are respectively provided with a first rotating portion (110) and a second rotating portion (120); A rotating mechanism (200), wherein the rotating mechanism (200) can be connected to the first rotating part (110) or the second rotating part (120), and is used to drive the support plate (100) to rotate around the first rotating part (110) or the second rotating part (120); A clamping mechanism (300), the clamping mechanism (300) being connected to the first rotating part (110) and being used for clamping the gas pipeline; The detection mechanism (400) is connected to the second rotating part (120) and is used to clamp the gas pipeline, drive the device as a whole to move, and detect the gas pipeline.

2. The gas pipeline leakage detection device according to claim 1, characterized in that: The first rotating part (110) comprises a first driven gear (111) mounted on one end of the support plate (100) and a second telescopic member (112) rotatably mounted on the first driven gear (111), and a clamping mechanism (300) is connected to the telescopic end of the second telescopic member (112); The second rotating part (120) comprises a second driven gear (121) mounted on the other end of the support plate (100) and a third telescopic member (122) rotatably mounted on the second driven gear (121), and a detection mechanism (400) is connected to the telescopic end of the third telescopic member (122).

3. The gas pipeline leakage detection device according to claim 1, characterized in that: The rotating mechanism (200) comprises a moving component (210) and a driving component (220); The moving component (210) is slidably connected to the support plate (100), the driving component (220) is connected to the moving component (210), and the moving component (210) is used to drive the driving component (220) to move back and forth between two ends of the support plate (100); The driving assembly (220) can be connected to the first rotating part (110) or the second rotating part (120) to drive the support plate (100) to rotate around the first rotating part (110) or the second rotating part (120).

4. The gas pipeline leakage detection device according to claim 3, characterized in that: The moving assembly (210) comprises a first telescopic member (211) mounted on one end of a support plate (100); a moving plate (212) slidably connected to the support plate (100) is connected to the telescopic end of the first telescopic member (211); and the first driving assembly (220) is connected to the moving plate (212).

5. The gas pipeline leakage detection device according to claim 4, characterized in that: The first driving assembly (220) comprises a first driving member (221) and a first driving gear (223); The first driving member (221) is mounted on the moving plate (212); a first driving shaft (222) is connected to the output end of the first driving member (221); a first driving gear (223) is mounted on the first driving shaft (222); and the first driving gear (223) can be meshed and connected with the first driven gear (111) or the second driven gear (121).

6. The gas pipeline leakage detection device according to claim 2, characterized in that: The clamping mechanism (300) comprises a telescopic portion (310) and a clamping portion (320); The telescopic portion (310) is connected to the telescopic end of the second telescopic member (112); the telescopic end of the telescopic portion (310) is connected to a clamping portion (320); the telescopic portion (310) is used to drive the clamping portion (320) to open or close, so that the clamping portion (320) loosens or clamps the gas pipeline.

7. The gas pipeline leakage detection device according to claim 2, characterized in that: The detection mechanism (400) comprises a U-shaped plate (410), a walking component (420) and a detection component (430); The U-shaped plate (410) is connected to the telescopic end of the third telescopic member (122); The walking assembly (420) is connected to the inside of the U-shaped plate (410), and the walking assembly (420) is used to clamp the gas pipeline and drive the entire device to move; The detection component (430) is connected to the inside of the U-shaped plate (410), and the detection component (430) is used to detect the gas pipeline.

8. The gas pipeline leakage detection device according to claim 7, characterized in that: The walking assembly (420) comprises a distance adjustment portion (421), two walking rollers (422) and a third driving member (423); Two walking rollers (422) that can move closer to or farther from each other are respectively connected to both sides of the distance adjustment portion (421), and the distance adjustment portion (421) is used to adjust the distance between the two walking rollers (422) so that the two walking rollers (422) clamp the gas pipeline; One of the walking rollers (422) is connected to a third driving member (423), and the third driving member (423) is used to drive the walking roller (422), so that the walking roller (422) drives the device as a whole to move along the gas pipeline.

9. The gas pipeline leakage detection device according to claim 8, characterized in that: The detection assembly (430) comprises a bearing plate (431), a rotating part (432), a driving part (433) and a gas sensor (434); The bearing plate (431) is slidably connected to the inside of the U-shaped plate (410); The rotating part (432) is connected to one side of the bearing plate (431), and a plurality of gas sensors (434) are connected to the rotating part (432). The rotating part (432) is used to drive the gas sensors (434) to rotate around the gas pipeline, so that the gas sensors (434) can perform all-round detection on the gas pipeline. The driving part (433) is connected to the other side of the carrying plate (431), and the driving part (433) is used to drive the rotating part (432) to rotate.

10. The gas pipeline leakage detection device according to claim 9, characterized in that: The rotating part (432) comprises an arc-shaped fixed coil (4321), an arc-shaped movable coil (4322), a gear groove (4323) and an arc-shaped protrusion (4324); The arc-shaped fixed ring (4321) is installed on one side of the bearing plate (431); The arc-shaped moving coil (4322) is slidably mounted on the outer surface of the arc-shaped fixed coil (4321); The gear groove (4323) is arranged on the outer surface of the arc-shaped moving coil (4322), and the gear groove (4323) is connected to the driving part (433), and the driving part (433) is used to drive the gear groove (4323) so that the arc-shaped moving coil (4322) rotates around the gas pipeline. The arc-shaped protrusion (4324) is installed on a side of the arc-shaped moving coil (4322) away from the supporting plate (431), and a plurality of gas sensors (434) are installed inside the arc-shaped protrusion (4324).

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