Hazardous source leakage detection device and method

Abstract

The invention discloses a hazard source leakage detection device and method, and belongs to the technical field of leakage detection device.A user sleeves the bottom of a pipeline needing to be detected with a bottom semi-ring cavity, then drives a transmission wheel part by starting a gear transmission part, and drives a retractable transmission part through the transmission wheel part; therefore, the two sets of arc-shaped sealing pieces are adjusted to move through the retracting and releasing transmission part to form a complete annular structure, the arc-shaped sealing pieces move to synchronously drive the inner sliding sealing pieces to move to cover the outside of the pipeline, and air bags arranged in sliding cavity parts and the arc-shaped sealing pieces are inflated by starting an air pump installed on a bottom semi-annular cavity. And then the annular air bag ring is formed to seal the pipeline, so that a relatively sealed environment is formed through the inner sliding sealing piece, the bottom semi-ring cavity, the end inner sealing piece, the end outer sealing piece and the inflated air bag, and the pipeline is covered.

Description

Technical Field

[0001] The present invention relates to a leakage detection device, in particular to a hazard source leakage detection device and method, belonging to the technical field of leakage detection devices. Background Art

[0002] It is necessary to detect some pipelines with hazardous gas leaks, such as chemical pipelines and pipelines that produce flammable gases. In the prior art, a pipeline gas leak detection device and a detection method thereof are usually used, such as the application number CN201510327843.7. The detection device includes a leaking gas collection device and a sensor module arranged inside the leaking gas collection device. The leaking gas collection device is provided with an air inlet and an air outlet controlled to be opened and closed by a solenoid valve. The sensor module includes a gas pressure sensor, a signal acquisition device and a signal output device. The detection method of the prior art is not convenient enough, and automatic mobile detection is not possible, and a relatively sealed environment cannot be formed for detection. Therefore, a hazardous source leak detection device and method are designed to solve the above problems. Summary of the invention

[0003] The main purpose of the present invention is to provide a device and method for detecting leakage of a hazardous source.

[0004] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0005] A hazard source leakage detection device comprises a bottom semi-annular cavity, and an inner sliding seal disposed in the bottom semi-annular cavity and sliding in the bottom semi-annular cavity;

[0006] The two ends of the bottom semi-annular cavity are provided with sliding cavity parts, and arc-shaped sealing parts sliding in the sliding cavity parts are provided on both sides of the sliding cavity parts, and the arc-shaped sealing parts are fixed to the inner sliding sealing parts;

[0007] Both the sliding cavity and the arc-shaped sealing element are built with air bags which expand after being inflated to seal the outer wall of the pipeline;

[0008] The two sides of the outside of the sliding cavity are provided with a retractable transmission part for adjusting the sliding of the two sets of arc-shaped sealing members, and the retractable transmission part is driven by a transmission wheel part, and the transmission wheel part is synchronously driven by a gear transmission part;

[0009] The top two ends of the bottom semi-annular cavity are provided with pressing and lifting moving parts, the inner wall two ends of the inner sliding seal are provided with auxiliary supporting moving parts, and the bottom of the bottom semi-annular cavity is provided with a moving driving part for driving the pressing and lifting moving part;

[0010] An arc-shaped slide rail portion is arranged inside the bottom semi-annular cavity and the inner sliding seal, and a rotation detection portion sliding on the arc-shaped slide rail portion is sleeved on the outer side of the arc-shaped slide rail portion.

[0011] Preferably, the sliding cavity portion includes an end outer seal and an arc-shaped end groove;

[0012] The end outer seal is a semi-annular structure, and an arc-shaped end groove is opened on the side of the end outer seal away from the bottom semi-annular cavity. An arc-shaped seal is inserted into the end outer seal. The retractable transmission part engages with the arc-shaped seal by passing through the end outer seal, and an airbag is arranged in the groove structure inside the end outer seal.

[0013] Preferably, the arc-shaped seal comprises an end inner seal and an arc-shaped rack;

[0014] The inner end seal is inserted into the outer end seal and slidably arranged in the outer end seal. An arc-shaped rack is arranged on the side of the inner end seal facing the arc-shaped end groove. The arc-shaped rack is meshed with the retraction and extension transmission part. The inner end seal has a groove structure and an airbag is also arranged in the groove structure of the inner end seal.

[0015] Preferably, the retractable transmission part comprises an L-shaped transmission fixing frame, a retractable gear, a linkage rotating shaft, a fourth bevel gear and a first bevel gear;

[0016] L-shaped transmission fixing frames are installed on both ends of the outer end seal, and a linkage shaft is set through the L-shaped transmission fixing frame. The linkage shaft and the L-shaped transmission fixing frame are connected by a bearing. A fourth bevel gear is installed at one end of the linkage shaft, and a retractable gear is installed at the other end of the linkage shaft. The retractable gear is meshed with the arc-shaped rack, and the outer side of the fourth bevel gear is meshed with the first bevel gear, and the outer side of the first bevel gear is driven by the transmission wheel part.

[0017] Preferably, the transmission wheel portion includes a first transmission group and a second transmission group, the first transmission group and the second transmission group respectively drive two groups of end inner seals, the outer end of one group of first bevel gears is installed with a first I-shaped disc, the outer end of the other group of first bevel gears is installed with a third I-shaped wheel, the outer side of the first I-shaped disc is sleeved with a first transmission belt, the outer side of the third I-shaped wheel is sleeved with a second transmission belt, the other end of the inner side of the second transmission belt is sleeved with a fourth I-shaped wheel, and the other end of the inner side of the first transmission belt is sleeved with a second I-shaped disc.

[0018] Preferably, the gear transmission part includes a first driven gear, a driving gear, a bottom transmission rod, an adjustment motor and a bottom limit frame;

[0019] Two groups of bottom limit frames are installed at the bottom of the two groups of end outer seals, and a first driven gear and a driving gear are respectively arranged on one side of the two groups of bottom limit frames. The driving gear is fixed to the second I-shaped disk, and the first driven gear is fixed to the fourth I-shaped wheel. An adjusting motor is installed on the other side of one group of bottom limit frames, and the adjusting motor penetrates the bottom limit frame to drive the first driven gear. The other group of bottom limit frames is penetrated by the bottom transmission rod, and driving gears are installed on both ends of the bottom transmission rod.

[0020] Preferably, the pressing and lifting moving part comprises an outer sliding rotating cylinder, an inner sliding rotating rod, a supporting outer cylinder, a supporting inner cylinder, a third bevel gear, a U-shaped frame, a second bevel gear, a cross bar and an active moving wheel;

[0021] The bottom of the bottom semi-annular cavity is penetrated by the outer sliding rotating cylinder, a first spring is installed on the inner bottom of the outer sliding rotating cylinder, an inner sliding rotating rod is installed on the top of the first spring, a third bevel gear is installed on the top of the inner sliding rotating rod through the U-shaped frame, a supporting outer cylinder is installed on the inner top of the bottom semi-annular cavity, a second spring is installed on the inner bottom of the supporting outer cylinder, a supporting inner cylinder is installed on the top of the second spring, and a U-shaped frame is installed on the top of the supporting inner cylinder, a cross bar penetrates the U-shaped frame, a second bevel gear is installed on the outer side of the cross bar, the second bevel gear is meshed with the third bevel gear, and active moving wheels are installed on both ends of the cross bar.

[0022] Preferably, the mobile driving unit includes an active I-shaped wheel, a third transmission belt, a fifth I-shaped wheel, a mobile motor and an L-shaped motor frame;

[0023] An L-shaped motor frame is installed at the outer bottom of the bottom semi-annular cavity, a mobile motor is installed at the top of the L-shaped motor frame, an active industrial wheel is installed at the output end of the mobile motor, a third transmission belt is sleeved on the outer side of the active industrial wheel, a fifth industrial wheel is sleeved on the other end of the inner side of the third transmission belt, and an external sliding drum is installed on the top of the fifth industrial wheel and the active industrial wheel.

[0024] Preferably, the arc-shaped slide rail portion comprises an outer arc-shaped slide rail and an inner arc-shaped slide rail, the outer arc-shaped slide rail is installed in the middle of the bottom semi-annular cavity, the inner arc-shaped slide rail sliding in the outer arc-shaped slide rail is installed on the inner wall of the inner sliding seal, and the cross-sections of the outer arc-shaped slide rail and the inner arc-shaped slide rail are both T-shaped structures;

[0025] The rotation detection part includes a sliding kit, a moving side wheel, a fourth transmission belt, an inner driven moving gear, an inner driving motor, an inner driving moving gear, and a detection rod;

[0026] An internal driving motor is installed on one side of the top of the sliding kit, and an internal active moving gear is installed on the output end of the internal driving motor. The internal active moving gear and the internal driven moving gear are meshed with each other. The bottoms of the internal active moving gear and the internal driven moving gear penetrate the sliding kit and are installed with moving side wheels. The moving side wheels are of an I-shaped structure. A detection rod is installed on the top of the sliding kit, and a detection module is laid on the top of the detection rod;

[0027] It includes a central processor built into the bottom semi-ring cavity, a detection module arranged on the top of the detection rod, and a camera installed at the end of the end outer seal;

[0028] A lithium battery is also arranged in the bottom transmission rod, and the detection module includes a gas sensor, a temperature sensor, a humidity sensor and a flame sensor;

[0029] The gas sensors include carbon monoxide sensors, hydrogen sulfide sensors, and combustible gas sensors.

[0030] A method for detecting leakage of a hazardous source comprises the following steps:

[0031] Step 1: The user sets the bottom half ring cavity sleeve at the bottom of the pipe to be inspected, and then drives the transmission wheel part by starting the gear transmission part, and drives the retractable transmission part through the transmission wheel part, so as to adjust the movement of the two sets of arc-shaped seals through the retractable transmission part to form a complete ring structure;

[0032] Step 2: Because the movement of the arc seal synchronously drives the movement of the inner sliding seal to cover the outside of the pipeline, the air pump installed on the bottom semi-annular cavity is started to inflate the airbags arranged in the sliding cavity and the arc seal, and then an annular airbag ring is formed to seal the pipeline;

[0033] Step 3: A relatively sealed environment is formed by the inner sliding seal, the bottom semi-ring cavity, the end inner seal, the end outer seal and the inflated airbag to cover the outside of the pipeline, and then the rotating detection part arranged outside the arc-shaped slide rail part moves around the arc-shaped slide rail part to monitor the gas leakage of the section of the pipeline;

[0034] Step 4: After the monitoring is completed, if you want to monitor the pipeline leakage at another stage, use the air pump to deflate the airbag, then start the mobile drive unit, and drive the pressing and lifting moving unit to move the device as a whole to the next position through the mobile drive unit, and repeat the operation for monitoring;

[0035] Step 5: When encountering a three-way valve structure, the arc seal will be partially recovered, thereby driving the inner sliding seal to recover, thereby opening a port to accommodate the top of the three-way valve, and then ensuring that the device passes through the three-way valve normally to enter the outside of the next pipe.

[0036] Beneficial technical effects of the present invention:

[0037] The present invention provides a hazard source leakage detection device and method. The user sets the bottom semi-annular cavity at the bottom of the pipeline to be inspected, and then drives the transmission wheel part by starting the gear transmission part, and drives the retractable transmission part by the transmission wheel part, so that the movement of two groups of arc-shaped seals is adjusted by the retractable transmission part to form a complete annular structure, and because the movement of the arc-shaped seal synchronously drives the movement of the inner sliding seal to cover the outside of the pipeline, the air pump installed on the bottom semi-annular cavity is started to inflate the airbags arranged in the sliding cavity part and the arc-shaped seal, and then an annular airbag ring is formed to seal the pipeline, so that a relatively sealed environment is formed by the inner sliding seal, the bottom semi-annular cavity, the end inner seal and the end outer seal, and the inflated airbag to cover the outside of the pipeline, and then the airbag is set on the outside of the arc-shaped slide rail part. The rotating detection part moves around the arc-shaped slide rail part to monitor the gas leakage in this section of the pipeline. Because the collection is a relatively independent space manufactured by the sealing method, the gas will continue to accumulate when it leaks, so the monitoring accuracy is higher, and the leaked gas can be monitored from subtle leaks. After the monitoring is completed, if you want to monitor the pipeline leakage in another stage, you can deflate the air bag through the air pump, and then start the mobile drive part. The mobile drive part drives the pressure-holding lifting and lowering moving part to drive the device as a whole to move to the next position, and then repeat the operation for monitoring. When encountering a three-way valve structure, the arc seal will be partially recovered, thereby driving the recovery of the inner sliding seal, so an opening is opened to accommodate the top of the three-way valve, and then ensure that the device passes through the three-way valve normally to enter the outside of the next pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a first-view stereoscopic structural diagram of the entire device according to a preferred embodiment of a hazard source leakage detection device and method of the present invention.

[0039] Figure 2 This is a second-view stereoscopic structural diagram of the entire device according to a preferred embodiment of a hazard source leakage detection device and method of the present invention.

[0040] Figure 3 It is a third-view stereoscopic structural diagram of the entire device according to a preferred embodiment of a hazard source leakage detection device and method of the present invention.

[0041] Figure 4 This is a fourth-view stereoscopic structural diagram of the entire device according to a preferred embodiment of a hazard source leakage detection device and method of the present invention.

[0042] Figure 5 This is an overall three-dimensional structural diagram of a device (minus the bottom half ring cavity) according to a preferred embodiment of a hazard source leakage detection device and method of the present invention.

[0043] Figure 6 For the present invention Figure 2 Enlarged view of the structure at point a in the figure.

[0044] Figure 7 For the present invention Figure 4 Enlarged view of the structure at point b in the figure.

[0045] Figure 8 It is a schematic diagram of the three-dimensional structure of the pressing, lifting and moving part of a preferred embodiment of a hazard source leakage detection device and method according to the present invention.

[0046] Fig. 9 It is a cross-sectional view of the structure of the rotation detection part according to a preferred embodiment of a hazard source leakage detection device and method of the present invention.

[0047] Fig.10 For the present invention Figure 3 Enlarged view of point c in the figure.

[0048] In the figure: 1, bottom semi-annular cavity, 2, bottom transmission rod, 3, inner sliding seal, 4, inner arc slide rail, 5, outer arc slide rail, 6, end inner seal, 7, arc rack, 8, end storage groove, 9, end outer seal, 10, arc end groove, 11, linkage shaft, 12, first I-shaped disk, 13, first transmission belt, 14, second I-shaped disk, 15, driving gear, 16, bottom limit frame, 17, second transmission belt, 18, third I-shaped wheel, 19, fourth I-shaped wheel, 20, first driven gear, 21, sliding kit, 22, detection rod, 23, fifth I-shaped wheel, 24. The third transmission belt, 25. The active industrial wheel, 26. The L-shaped motor frame, 27. The mobile motor, 28. The retractable gear, 29. The L-shaped transmission fixed frame, 30. The adjustment motor, 31. The first bevel gear, 32. The active mobile wheel, 33. The U-shaped frame, 34. The second bevel gear, 35. The cross bar, 36. The third bevel gear, 37. The inner sliding rotating rod, 38. The outer sliding rotating cylinder, 39. The supporting outer cylinder, 40. The supporting inner cylinder, 41. The mobile side wheel, 42. The inner driving motor, 43. The inner active mobile gear, 45. The inner driven mobile gear, 46. The fourth bevel gear. DETAILED DESCRIPTION

[0049] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0050] like Figure 1-Figure 10 As shown, a hazard source leakage detection device provided in this embodiment includes a bottom semi-annular cavity 1, and an inner sliding seal 3 disposed in the bottom semi-annular cavity 1 and sliding in the bottom semi-annular cavity 1;

[0051] The two ends of the bottom semi-annular cavity 1 are provided with sliding cavity parts, and arc-shaped sealing parts sliding in the sliding cavity parts are provided on both sides of the sliding cavity parts, and the arc-shaped sealing parts are fixed to the inner sliding sealing parts 3;

[0052] Both the sliding cavity and the arc-shaped sealing element are built with air bags which expand after being inflated to seal the outer wall of the pipeline;

[0053] The two sides of the outside of the sliding cavity are provided with a retractable transmission part for adjusting the sliding of the two sets of arc-shaped sealing members, and the retractable transmission part is driven by a transmission wheel part, and the transmission wheel part is synchronously driven by a gear transmission part;

[0054] The top two ends of the bottom semi-annular cavity 1 are provided with a pressing and lifting moving part, the inner wall two ends of the inner sliding seal 3 are provided with an auxiliary supporting moving part, and the bottom of the bottom semi-annular cavity 1 is installed with a moving driving part for driving the pressing and lifting moving part;

[0055] An arc-shaped slide rail portion is arranged inside the bottom semi-annular cavity 1 and the inner sliding seal 3, and a rotation detection portion sliding on the arc-shaped slide rail portion is sleeved on the outer side of the arc-shaped slide rail portion.

[0056] The overall working principle is as follows: the user sets the bottom semi-annular cavity 1 on the bottom of the pipeline to be inspected, and then drives the transmission wheel part by starting the gear transmission part, and drives the retractable transmission part through the transmission wheel part, so as to adjust the movement of the two groups of arc-shaped seals through the retractable transmission part to form a complete annular structure, and because the movement of the arc-shaped seal synchronously drives the movement of the inner sliding seal 3 to cover the outside of the pipeline, the air pump installed on the bottom semi-annular cavity 1 is started to inflate the airbags arranged in the sliding cavity part and the arc-shaped seal, and then an annular airbag ring is formed to seal the pipeline, so that a relatively sealed environment is formed by the inner sliding seal 3, the bottom semi-annular cavity 1, the end inner seal 6 and the end outer seal 9 and the inflated airbag to cover the outside of the pipeline, and then the rotation detection device arranged outside the arc-shaped slide rail part is used. The part moves around the arc-shaped slide rail part to monitor the gas leakage of this section of the pipeline. Because the collection is a relatively independent space made by the sealing method, the gas will continue to accumulate when it leaks, so the monitoring accuracy is higher, and the leaked gas can be monitored from subtle leaks. After the monitoring is completed, if you want to monitor the pipeline leakage in another stage, the air bag is deflated by the air pump, and then the mobile drive part is started. The mobile drive part drives the pressure-holding lifting and lowering moving part to drive the device as a whole to move to the next position, and then repeat the operation for monitoring. When encountering a three-way valve structure, the arc-shaped seal will be partially recovered, thereby driving the inner sliding seal 3 to be recovered, so an opening is opened to accommodate the top of the three-way valve, and then ensure that the device passes through the three-way valve normally to enter the outside of the next pipeline.

[0057] In this embodiment, the sliding cavity portion includes an end outer seal 9 and an arc-shaped end groove 10;

[0058] The end outer seal 9 is a semi-annular structure, and an arc-shaped end groove 10 is provided on the side of the end outer seal 9 away from the bottom semi-annular cavity 1. An arc-shaped seal is inserted into the end outer seal 9, and the retractable transmission part is meshed with the arc-shaped seal by penetrating the end outer seal 9. An airbag is provided in the groove structure inside the end outer seal 9.

[0059] Partial working principle: The arc-shaped seal is inserted into the arc-shaped end groove 10 and can move in the arc-shaped end groove 10. The movement of the arc-shaped seal is adjusted by starting the retractable transmission part.

[0060] In this embodiment, the arc-shaped seal comprises an end inner seal 6 and an arc-shaped rack 7;

[0061] The inner end seal 6 is inserted into the outer end seal 9 and is slidably arranged in the outer end seal 9. An arc-shaped rack 7 is arranged on the side of the inner end seal 6 facing the arc-shaped end groove 10. The arc-shaped rack 7 is meshed with the retracting and extending transmission part. The inner end seal 6 has a groove structure and an airbag is also arranged in the groove structure of the inner end seal 6.

[0062] Local working principle: by meshing the retractable transmission part with the arc-shaped rack 7, the end inner seal 6 can be driven to move out of the end outer seal 9 by starting the retractable transmission part, and then the two ends of the two groups of end inner seals 6 are in contact to form an annular structure.

[0063] In this embodiment, the retractable transmission part includes an L-shaped transmission fixing frame 29, a retractable gear 28, a linkage shaft 11, a fourth bevel gear 46 and a first bevel gear 31;

[0064] L-shaped transmission fixing frames 29 are installed at both ends of the outer end seal 9, and a linkage shaft 11 is set through the L-shaped transmission fixing frame 29. The linkage shaft 11 and the L-shaped transmission fixing frame 29 are connected by a bearing. A fourth bevel gear 46 is installed at one end of the linkage shaft 11, and a retractable gear 28 is installed at the other end of the linkage shaft 11. The retractable gear 28 is meshed with the arc rack 7, and the outer side of the fourth bevel gear 46 is meshed with the first bevel gear 31, and the outer side of the first bevel gear 31 is driven by the transmission wheel portion.

[0065] Local working principle: the first bevel gear 31 is driven by the starting transmission wheel part, the fourth bevel gear 46 is driven by the first bevel gear 31, the linkage shaft 11 is driven to rotate by the fourth bevel gear 46, the retractable gear 28 is driven to rotate by the linkage shaft 11, and the arc rack 7 is driven to move by the retractable gear 28.

[0066] In this embodiment, the transmission wheel portion includes a first transmission group and a second transmission group, which respectively drive two groups of end inner seals 6, a first I-shaped disc 12 is installed at the outer end of one group of first bevel gears 31, and a third I-shaped wheel 18 is installed at the outer end of the other group of first bevel gears 31. The outer side of the first I-shaped disc 12 is sleeved with a first transmission belt 13, the outer side of the third I-shaped wheel 18 is sleeved with a second transmission belt 17, the other end of the inner side of the second transmission belt 17 is sleeved with a fourth I-shaped wheel 19, and the other end of the inner side of the first transmission belt 13 is sleeved with a second I-shaped disc 14.

[0067] Local working principle: the fourth type wheel 19 and the second type disk 14 are driven to rotate by starting the gear transmission part, and the second transmission belt 17 and the first transmission belt 13 are driven to move by the fourth type wheel 19 and the second type disk 14 respectively, and the third type wheel 18 and the first type disk 12 are driven to rotate by the second transmission belt 17 and the first transmission belt 13 respectively, thereby driving the first bevel gear 31 to rotate.

[0068] In this embodiment, the gear transmission part includes a first driven gear 20, a driving gear 15, a bottom transmission rod 2, an adjustment motor 30 and a bottom limit frame 16;

[0069] Two groups of bottom limit frames 16 are installed at the bottom of the two groups of end outer seals 9, and the first driven gear 20 and the driving gear 15 are respectively arranged on one side of the two groups of bottom limit frames 16. The driving gear 15 is fixed to the second type disk 14, and the first driven gear 20 is fixed to the fourth type wheel 19. An adjusting motor 30 is installed on the other side of one group of bottom limit frames 16. The adjusting motor 30 penetrates the bottom limit frame 16 to drive the first driven gear 20. The other group of bottom limit frames 16 is penetrated by the bottom transmission rod 2, and the driving gear 15 is installed at both ends of the bottom transmission rod 2.

[0070] Local working principle: by starting the regulating motor 30 to drive the first driven gear 20 to rotate, the first driven gear 20 drives the driving gear 15 to move, and the first driven gear 20 and the driving gear 15 respectively drive the fourth type wheel 19 and the second type disk 14 to rotate, and the rotation of the driving gear 15 drives the bottom transmission rod 2 to rotate, thereby driving another group of driving gears 15 to rotate, and then another group of first driven gears 20 are driven to rotate through another group of driving gears 15.

[0071] In this embodiment, the pressing and lifting moving part includes an outer sliding rotating cylinder 38, an inner sliding rotating rod 37, a supporting outer cylinder 39, a supporting inner cylinder 40, a third bevel gear 36, a U-shaped frame 33, a second bevel gear 34, a cross bar 35 and an active moving wheel 32;

[0072] The bottom of the bottom semi-annular cavity 1 is penetrated by the outer sliding rotating cylinder 38, and a first spring is installed on the inner bottom of the outer sliding rotating cylinder 38, and an inner sliding rotating rod 37 is installed on the top of the first spring, and a third bevel gear 36 is installed on the top of the inner sliding rotating rod 37 through the U-shaped frame 33, and a supporting outer cylinder 39 is installed on the inner top of the bottom semi-annular cavity 1, and a second spring is installed on the inner bottom of the supporting outer cylinder 39, and a supporting inner cylinder 40 is installed on the top of the second spring, and a U-shaped frame 33 is installed on the top of the supporting inner cylinder 40, and a cross bar 35 penetrates the U-shaped frame 33, and a second bevel gear 34 is installed on the outer side of the cross bar 35, and the second bevel gear 34 is meshed with the third bevel gear 36, and active moving wheels 32 are installed at both ends of the cross bar 35.

[0073] Local working principle: the outer sliding drum 38 and the inner sliding rotating rod 37 are driven to rotate by the mobile driving part, thereby driving the third bevel gear 36 to rotate, the second bevel gear 34 is driven to rotate by the third bevel gear 36, the cross bar 35 is driven to rotate by the second bevel gear 34, and the active moving wheel 32 is driven to rotate by the cross bar 35, thereby realizing the movement function. In addition, the U-shaped frame 33, the supporting inner cylinder 40, the supporting outer cylinder 39 and the second spring can make the U-shaped frame 33 stable, and secondly, the outer sliding drum 38, the inner sliding rotating rod 37 and the first spring can make the active moving wheel 32 realize the function of lifting and lowering adjustment under pressure.

[0074] In this embodiment, the mobile driving unit includes an active I-shaped wheel 25, a third transmission belt 24, a fifth I-shaped wheel 23, a mobile motor 27 and an L-shaped motor frame 26;

[0075] An L-shaped motor frame 26 is installed at the outer bottom of the bottom semi-annular cavity 1, and a mobile motor 27 is installed at the top of the L-shaped motor frame 26. An active industrial wheel 25 is installed at the output end of the mobile motor 27. The outer side of the active industrial wheel 25 is sleeved with a third transmission belt 24, and the other end of the inner side of the third transmission belt 24 is sleeved with a fifth industrial wheel 23. The tops of the fifth industrial wheel 23 and the active industrial wheel 25 are both installed with an outer sliding drum 38.

[0076] Local working principle: the active shaping wheel 25 is driven to move by starting the mobile motor 27, the third transmission belt 24 is driven to move by the active shaping wheel 25, the fifth shaping wheel 23 is driven to move by the third transmission belt 24, and the outer sliding drum 38 is driven to move by the active shaping wheel 25 and the fifth shaping wheel 23.

[0077] In this embodiment, the arc-shaped slide rail portion includes an outer arc-shaped slide rail 5 and an inner arc-shaped slide rail 4. The outer arc-shaped slide rail 5 is installed in the middle part of the bottom semi-annular cavity 1, and the inner arc-shaped slide rail 4 sliding in the outer arc-shaped slide rail 5 is installed on the inner wall of the inner sliding seal 3, and the cross-sections of the outer arc-shaped slide rail 5 and the inner arc-shaped slide rail 4 are both T-shaped structures.

[0078] Partial working principle: The outer arc-shaped slide rail 5 and the inner arc-shaped slide rail 4 cooperate to form an annular structure, thereby enabling the rotation detection part to slide.

[0079] In this embodiment, the rotation detection part includes a sliding kit 21, a moving side wheel 41, an inner driven moving gear 45, an inner driving motor 42, an inner driving moving gear 43, and a detection rod 22;

[0080] An internal driving motor 42 is installed on one side of the top of the sliding kit 21, and an internal active moving gear 43 is installed on the output end of the internal driving motor 42. The internal active moving gear 43 and the internal driven moving gear 45 are meshed with each other. The bottom of the internal active moving gear 43 and the internal driven moving gear 45 pass through the sliding kit 21 and are equipped with a moving side wheel 41. The moving side wheel 41 is an I-shaped structure. A detection rod 22 is installed on the top of the sliding kit 21, and a detection module is laid on the top of the detection rod 22.

[0081] A hazard source leakage detection system includes a central processor built into a bottom semi-ring cavity 1, a detection module arranged on the top of a detection rod 22, and a camera installed at the end of an end outer seal 9;

[0082] A lithium battery is also arranged in the bottom transmission rod 2, and the detection module includes a gas sensor, a temperature sensor, a humidity sensor and a flame sensor;

[0083] The gas sensors include carbon monoxide sensors, hydrogen sulfide sensors, and combustible gas sensors.

[0084] Local working principle: The camera is used to obtain the condition of the outer wall of the pipeline to determine whether it has entered the vicinity of the three-way pipe, which facilitates the automatic adjustment of the device. The detection function is realized through the detection module and powered by a lithium battery.

[0085] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. A hazardous source leakage detection device, characterized in that: It comprises a bottom semi-annular cavity (1), and an inner sliding seal (3) which is arranged in the bottom semi-annular cavity (1) and slides in the bottom semi-annular cavity (1); Sliding chambers are provided at both ends of the bottom semi-annular chamber (1), and arc-shaped sealing members sliding in the sliding chamber are provided on both sides of the sliding chamber, and the arc-shaped sealing members are fixed to the inner sliding sealing member (3); Both the sliding cavity and the arc-shaped sealing element are built with air bags which expand after being inflated to seal the outer wall of the pipeline; The two sides of the outside of the sliding cavity are provided with a retractable transmission part for adjusting the sliding of the two sets of arc-shaped sealing members, and the retractable transmission part is driven by a transmission wheel part, and the transmission wheel part is synchronously driven by a gear transmission part; The top two ends of the bottom semi-annular cavity (1) are provided with pressing and lifting moving parts, the inner wall two ends of the inner sliding seal (3) are provided with auxiliary supporting moving parts, and the bottom of the bottom semi-annular cavity (1) is provided with a moving driving part for driving the pressing and lifting moving part; An arc-shaped slide rail portion is arranged inside the bottom semi-annular cavity (1) and the inner sliding seal (3), and a rotation detection portion sliding on the arc-shaped slide rail portion is sleeved on the outer side of the arc-shaped slide rail portion.

2. A hazardous source leakage detection device according to claim 1, characterized in that: The sliding cavity portion comprises an outer end seal (9) and an arc-shaped end groove (10); The end outer seal (9) is a semi-annular structure, and an arc-shaped end groove (10) is provided on a side of the end outer seal (9) away from the bottom semi-annular cavity (1). An arc-shaped seal is inserted into the end outer seal (9), and the retractable transmission part is mutually engaged with the arc-shaped seal by penetrating the end outer seal (9), and an airbag is provided in the groove structure inside the end outer seal (9).

3. A hazardous source leakage detection device according to claim 2, characterized in that: The arc-shaped sealing member comprises an inner end sealing member (6) and an arc-shaped rack (7); The inner end seal (6) is inserted into the outer end seal (9) and is slidably arranged in the outer end seal (9). An arc-shaped rack (7) is arranged on the side of the inner end seal (6) facing the arc-shaped end groove (10). The arc-shaped rack (7) is meshed with the retractable transmission part. The inner end seal (6) has a groove structure and an airbag is also arranged in the groove structure of the inner end seal (6).

4. A hazardous source leakage detection device according to claim 3, characterized in that: The retractable transmission part comprises an L-shaped transmission fixing frame (29), a retractable gear (28), a linkage rotating shaft (11), a fourth bevel gear (46) and a first bevel gear (31); Both ends of the outer end seal (9) are installed with L-shaped transmission fixing frames (29), and a linkage shaft (11) is provided through the L-shaped transmission fixing frame (29). The linkage shaft (11) and the L-shaped transmission fixing frame (29) are connected via a bearing. A fourth bevel gear (46) is installed at one end of the linkage shaft (11), and a retractable gear (28) is installed at the other end of the linkage shaft (11). The retractable gear (28) and the arc-shaped rack (7) are meshed with each other. The outer side of the fourth bevel gear (46) is meshed with a first bevel gear (31), and the outer side of the first bevel gear (31) is driven by the transmission wheel portion.

5. A hazardous source leakage detection device according to claim 4, characterized in that: The transmission wheel portion comprises a first transmission group and a second transmission group, the first transmission group and the second transmission group respectively drive two groups of end inner seals (6), a first profile disc (12) is mounted on the outer end of one group of first bevel gears (31), a third profile wheel (18) is mounted on the outer end of the other group of first bevel gears (31), a first transmission belt (13) is sleeved on the outer side of the first profile disc (12), a second transmission belt (17) is sleeved on the outer side of the third profile wheel (18), a fourth profile wheel (19) is sleeved on the other end of the inner side of the second transmission belt (17), and a second profile disc (14) is sleeved on the other end of the inner side of the first transmission belt (13).

6. A hazardous source leakage detection device according to claim 5, characterized in that: The gear transmission part comprises a first driven gear (20), a driving gear (15), a bottom transmission rod (2), an adjustment motor (30) and a bottom limit frame (16); Two groups of bottom limit frames (16) are installed at the bottom of the two groups of end outer seals (9), and a first driven gear (20) and a driving gear (15) are respectively arranged on one side of the two groups of bottom limit frames (16). The driving gear (15) is fixed to the second type plate (14), and the first driven gear (20) is fixed to the fourth type wheel (19). An adjustment motor (30) is installed on the other side of one group of bottom limit frames (16), and the adjustment motor (30) penetrates the bottom limit frame (16) to drive the first driven gear (20). The other group of bottom limit frames (16) is penetrated by a bottom transmission rod (2), and driving gears (15) are installed on both ends of the bottom transmission rod (2).

7. A hazardous source leakage detection device according to claim 6, characterized in that: The pressing and lifting moving part comprises an outer sliding rotating cylinder (38), an inner sliding rotating rod (37), a supporting outer cylinder (39), a supporting inner cylinder (40), a third bevel gear (36), a U-shaped frame (33), a second bevel gear (34), a cross bar (35) and an active moving wheel (32); The bottom of the bottom semi-annular cavity (1) is penetrated by the outer sliding rotating cylinder (38), the inner bottom of the outer sliding rotating cylinder (38) is installed with a first spring, the top of the first spring is installed with an inner sliding rotating rod (37), the top of the inner sliding rotating rod (37) penetrates the U-shaped frame (33) and is installed with a third bevel gear (36), the inner top of the bottom semi-annular cavity (1) is installed with a supporting outer cylinder (39), the inner bottom of the supporting outer cylinder (39) is installed with a second spring, the top of the second spring is installed with a supporting inner cylinder (40), and the top of the supporting inner cylinder (40) is installed with a U-shaped frame (33), the cross bar (35) penetrates the U-shaped frame (33), the outer side of the cross bar (35) is installed with a second bevel gear (34), the second bevel gear (34) and the third bevel gear (36) are meshed with each other, and active moving wheels (32) are installed at both ends of the cross bar (35).

8. A hazardous source leakage detection device according to claim 7, characterized in that: The mobile driving part comprises an active industrial wheel (25), a third transmission belt (24), a fifth industrial wheel (23), a mobile motor (27) and an L-shaped motor frame (26); An L-shaped motor frame (26) is installed at the outer bottom of the bottom semi-annular cavity (1), a mobile motor (27) is installed at the top of the L-shaped motor frame (26), an active industrial wheel (25) is installed at the output end of the mobile motor (27), a third transmission belt (24) is sleeved on the outer side of the active industrial wheel (25), a fifth industrial wheel (23) is sleeved on the other end of the inner side of the third transmission belt (24), and an outer sliding drum (38) is installed on the top of the fifth industrial wheel (23) and the active industrial wheel (25).

9. A hazardous source leakage detection device according to claim 8, characterized in that: The arc-shaped slide rail portion comprises an outer arc-shaped slide rail (5) and an inner arc-shaped slide rail (4); the outer arc-shaped slide rail (5) is installed in the middle of the bottom semi-annular cavity (1); the inner arc-shaped slide rail (4) sliding in the outer arc-shaped slide rail (5) is installed on the inner wall of the inner sliding seal (3); and the cross-sections of the outer arc-shaped slide rail (5) and the inner arc-shaped slide rail (4) are both T-shaped structures; The rotation detection part comprises a sliding kit (21), a moving side wheel (41), an inner driven moving gear (45), an inner driving motor (42), an inner driving moving gear (43), and a detection rod (22); An internal driving motor (42) is installed on one side of the top of the sliding kit (21), an internal active moving gear (43) is installed on the output end of the internal driving motor (42), the internal active moving gear (43) and the internal driven moving gear (45) are meshed with each other, the bottoms of the internal active moving gear (43) and the internal driven moving gear (45) penetrate the sliding kit (21) and are installed with a moving side wheel (41), the moving side wheel (41) is an I-shaped structure, a detection rod (22) is installed on the top of the sliding kit (21), and a detection module is laid on the top of the detection rod (22); It comprises a central processing unit built into the bottom semi-ring cavity (1), a detection module arranged on the top of the detection rod (22), and a camera installed at the end of the end outer sealing member (9); A lithium battery is also arranged in the bottom transmission rod (2), and the detection module comprises a gas sensor, a temperature sensor, a humidity sensor and a flame sensor; The gas sensors include carbon monoxide sensors, hydrogen sulfide sensors, and combustible gas sensors.

10. A method for detecting leakage of a hazardous source, according to a device for detecting leakage of a hazardous source according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: The user sets the bottom half ring cavity (1) on the bottom of the pipe to be inspected, and then starts the gear transmission part to drive the transmission wheel part, and drives the retractable transmission part through the transmission wheel part, so that the retractable transmission part adjusts the movement of the two sets of arc-shaped sealing members to form a complete ring structure; Step 2: Because the movement of the arc-shaped seal synchronously drives the movement of the inner sliding seal (3) to cover the outside of the pipeline, the air pump installed on the bottom semi-annular cavity (1) is started to inflate the airbags arranged in the sliding cavity and the arc-shaped seal, and then an annular airbag ring is formed to seal the pipeline; Step 3: A relatively sealed environment is formed by the inner sliding seal (3), the bottom semi-annular cavity (1), the end inner seal (6), the end outer seal (9) and the inflated airbag to cover the outside of the pipeline, and then the rotating detection part arranged outside the arc-shaped slide rail part moves around the arc-shaped slide rail part to monitor the gas leakage of the section of the pipeline; Step 4: After the monitoring is completed, if you want to monitor the pipeline leakage at another stage, use the air pump to deflate the airbag, then start the mobile drive unit, and drive the pressing and lifting moving unit to move the device as a whole to the next position through the mobile drive unit, and repeat the operation for monitoring; Step 5: When encountering a three-way valve structure, the arc seal will be partially recovered, thereby driving the inner sliding seal (3) to be recovered, thereby opening a port to accommodate the top of the three-way valve, and then ensuring that the device passes through the three-way valve normally and enters the outside of the next pipeline.

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