Factory unmanned inspection device

Abstract

The invention discloses a factory unmanned inspection device, which belongs to the technical field of inspection devices, and comprises a splicable guide rail, a walking mechanism, a detection seat, a gas detection mechanism, a stand column and a sealing clamping mechanism, and the gas concentration sensor is arranged on the sealing clamping mechanism and is electrically connected with the gas detection mechanism. According to the invention, the walking mechanism drives the detection seat to move on the splicing guide rail along the laying path of the pipeline, when the detection seat moves to the flange joint of the two adjacent pipelines, the sealing clamping mechanism acts, and the sealing clamping mechanism clamps the two adjacent pipelines and covers the flange joint of the two adjacent pipelines. The chemical gas leaked from the sealing surface at the flange joint enters the sealing clamping mechanism, the concentration of the chemical gas is detected by the gas concentration sensor, and the gas leakage is detected by the gas detection mechanism, so that the unmanned inspection of the pipeline leakage is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of patrol inspection devices, and in particular relates to an unmanned patrol inspection device for a factory area. Background Art

[0002] During production and processing, chemical companies need to use pipelines to transport semi-finished or finished chemical gases. Pipelines are usually connected in sections, so the sealing of the flange joints of two adjacent pipelines needs to be guaranteed to prevent chemical gases from escaping from the gaps at the flange joints, thereby causing safety hazards or production accidents.

[0003] Based on the current actual situation, most chemical companies need to set up fixed inspection personnel during production to conduct inspections along the pipeline laying path and detect whether there is chemical gas leakage at the flange joints of two adjacent pipelines. On the one hand, this manual inspection method makes the workers' labor intensity higher. On the other hand, if chemical gas leaks, it is easy to cause health or safety hazards to the workers. Therefore, it is necessary to design an unmanned inspection device or equipment that can replace the manual method to detect pipeline leakage in chemical gas production plants. This application is developed based on the above situation. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide an unmanned inspection device for a factory area.

[0005] The technical solution adopted to solve the above technical problems is: an unmanned inspection device for factory areas, comprising:

[0006] A splicable guide rail laid on the ground along the pipeline and a running mechanism installed on the splicable guide rail;

[0007] A detection seat connected to the walking mechanism, wherein a gas detection mechanism is provided in the detection seat;

[0008] A column vertically connected to the top of the detection seat, wherein the upper end of the column is provided with a sealing clamping mechanism, and the sealing clamping mechanism is used to clamp two adjacent pipes and cover the flange joints of the two adjacent pipes;

[0009] A gas concentration sensor is installed on the sealing clamping mechanism, and the gas concentration sensor is electrically connected to the gas detection mechanism.

[0010] Through the above technical scheme, the detection seat is driven by the walking mechanism to move along the laying path of the pipeline on the splicable guide rail. When it moves to the flange joint of two adjacent pipelines, the sealing clamping mechanism is activated to clamp the two adjacent pipelines and cover the flange joint of the two adjacent pipelines. The chemical gas leaked from the sealing surface of the flange joint will enter the sealing clamping mechanism, and the concentration of the chemical gas will be detected by the gas concentration sensor. The detection data is fed back to the gas detection mechanism, and then the gas detection mechanism will detect gas leakage, thereby realizing unmanned inspection of pipeline leakage. On the one hand, no manual detection is required, which reduces the safety and health hazards caused by the inhalation of chemical gases by workers. On the other hand, there is basically no need for physical labor, and it is only necessary to collect the detection data of the gas detection mechanism at the control end.

[0011] Furthermore, the walking mechanism includes a walking drive motor installed on the outer walls on both sides of the lower end of the detection base, and the motor shaft of the walking drive motor is fixedly installed with a walking wheel.

[0012] Through the above technical solution, the travel drive motor drives the travel wheel to rotate, thereby causing the travel wheel to roll on the ground, thereby driving the detection seat to move along the laying path of the pipeline.

[0013] Furthermore, the gas detection mechanism includes a single-chip microcomputer placed in the inner cavity of the detection seat and a transmission module installed on the outer wall of the detection seat, the single-chip microcomputer is electrically connected to the gas concentration sensor via a cable, and the transmission module is electrically connected to the single-chip microcomputer via a cable. A battery module is also provided in the inner cavity of the detection seat, and the battery module is used to power the single-chip microcomputer, the transmission module, the gas concentration sensor and the walking drive motor.

[0014] Through the above technical solution, the signal detected by the gas concentration sensor will be fed back to the single-chip microcomputer, which will analyze the signal of the gas concentration and then transmit it to the cloud or external control terminal through the transmission module, so as to monitor whether the pipeline is leaking on the cloud or control terminal.

[0015] Furthermore, a proximity switch is installed on the lower outer wall of the detection seat, and a sensing component used in conjunction with the proximity switch is provided below the splicable guide rail, and the installation position of the sensing component is adapted to the position of the flange joints of the two adjacent pipes.

[0016] Through the above technical solution, when the detection seat is moving, when the proximity switch is opposite to the sensing element, the sensing element enters the sensing range of the proximity switch, causing the proximity switch to generate a sensing signal and transmit it to the single-chip microcomputer. The single-chip microcomputer controls the battery module to stop supplying power to the travel drive motor, thereby achieving the detection seat automatically stopping when it moves to the flange joint of two adjacent pipelines, thereby enabling the gas concentration sensor to detect leakage at the flange joint of the pipeline.

[0017] Furthermore, the sealing clamping mechanism includes a mounting tube horizontally connected to the outer wall of the column, and two arc covers are hingedly connected in sequence from top to bottom at one end of the mounting tube close to the pipe, and the two arc covers are symmetrically arranged along the axial direction of the mounting tube. After the two arc covers are rotated to a merged state, their inner cavities form a sealed space for covering the flange joints of two adjacent pipes, and the two arc covers are driven to rotate by a retractable and expandable unit installed on the mounting tube, and a detection chamber is installed on the outer wall of one of the arc covers, the interior of the detection chamber is hollow, and the gas concentration sensor is installed in the detection chamber, and the outer wall of the arc cover is also provided with a detection hole connected to the inner cavity of the detection chamber.

[0018] Through the above technical scheme, after the two arc covers are driven by the retraction and expansion unit to rotate relative to the hinged joint with the installation tube to a merged state, the two arc covers can clamp the pipeline, and at the same time, the flange joint of the pipeline is covered by the two arc covers, so that the chemical gas leaked from the flange joint will enter the sealed space surrounded by the two arc covers, thereby facilitating the gas concentration sensor to detect the concentration of the chemical gas leaked from the sealed space.

[0019] Furthermore, the retractable and extended unit includes a translation cylinder horizontally installed in the installation tube, the cylinder rod end of the translation cylinder is fixedly sleeved with a sliding hinge seat, the upper and lower outer walls of the sliding hinge seat are respectively hinged with a hinge rod, and the end of the hinge rod away from the sliding hinge seat is respectively hinged to the two outer walls of the arc-shaped cover.

[0020] Through the above technical solution, the cylinder rod of the translation cylinder is extended, thereby driving the sliding hinge seat to slide in the installation tube toward the direction of the pipeline, so that the two hinge rods respectively drive the two arc covers to rotate along the hinges with the installation tube, and the structure is simple.

[0021] Furthermore, an inflation tube is penetrated through the outer wall of another arc-shaped cover, and one end of the inflation tube that penetrates into the arc-shaped cover is connected to an airbag, and the airbag is communicated with the inflation tube.

[0022] Through the above technical solution, after the two arc-shaped covers cover the flange joints of the two adjacent pipes, the external inflation pump inflates the airbag through the inflation tube, so that the airbag is inflated and expanded in the sealed space surrounded by the two arc-shaped covers. Since the airbag has good ductility, the airbag can fill the sealed space after expansion, and then squeeze the chemical gas leaked from the flange joint in the sealed space into the detection chamber, so that the chemical gas, under the premise of unchanged molecular weight, increases its concentration due to the decrease in space volume, so that the gas concentration sensor can detect the leaked chemical gas more accurately, and even if the amount of chemical gas leaked from the flange joint of the pipeline is small, the gas concentration sensor can still detect it in time to avoid greater safety hazards and production accidents. In addition, since the volume of the airbag can shrink after deflation, it is convenient to be stored in the arc-shaped cover after inflation, and the airbag is relatively soft, even if it contacts the flange joint of the pipeline, it will not interfere with the merging action of the two arc-shaped covers.

[0023] Furthermore, a translation unit is installed on each of the two axial outer walls of the arc cover, and an output end of the translation unit is detachably connected to a arc sheet, a plurality of accommodating parts are fixedly connected to a side of the arc sheet facing the outer side of the arc cover, a bolt accommodating cavity is provided on a side of the accommodating part facing the pipe flange joint, and a fabric layer is provided on the surface of the arc sheet and the accommodating part.

[0024] Through the above technical solution, when the arc cover is closed and the airbag is not inflated, the translation unit drives the arc sheet to move toward the flange joint of the pipe, so that the bolt accommodating cavity on the arc sheet is stuck on the bolt pair at the flange joint, and the arc sheet and the accommodating portion cover the multiple bolt pairs on the flange joint, and then the translation unit is reset, so that the arc sheet is attached to the end face of the flange joint, and the bolt pair is stuck in the bolt accommodating cavity. In this way, when the airbag is inflated, the surface of the airbag will not contact the bolt pair, thereby avoiding the thread or corner burrs on the bolt pair from scratching the surface of the airbag, and even causing damage to the airbag.

[0025] Furthermore, a hollow rod is horizontally slidably penetrated through the outer wall of the arc-shaped cover, and the end of the hollow rod that penetrates into the arc-shaped cover is coaxially fixed with a clamping part, and the end face of the clamping part is provided with a connecting port that is connected to the inner cavity of the hollow rod, and the connecting port and the accommodating part form a sliding fit, and the end of the hollow rod that passes through the arc-shaped cover is provided with a pipe interface, and the outer wall of the arc-shaped cover is fixed with a placement part, and the placement part is provided with a receiving cavity for the clamping part to pass freely.

[0026] Through the above technical scheme, the hollow rod is evacuated by an external vacuum pump, so that after the connecting port of the clamping part is engaged with the accommodating part, a negative pressure suction force can be generated on the surface of the accommodating part on the arc-shaped sheet, thereby adsorbing the arc-shaped sheet on the clamping part. When the arc-shaped sheet contacts the end face of the flange joint, the vacuum pump stops evacuating the hollow rod. At this time, when the hollow rod moves away from the flange joint, the arc-shaped sheet will not move with the clamping part but will remain in contact with the end face of the flange joint. In this way, the hollow rod is prevented from interfering with the inflation and expansion of the airbag in the sealed space of the two arc covers and filling the sealed space when the airbag is inflated.

[0027] Furthermore, the translation unit includes a cylinder bracket connected to the outer wall of the arc cover, a thumb cylinder is horizontally installed on the outer wall of the cylinder bracket, the cylinder rod end of the thumb cylinder is fixedly connected to a connecting plate, and one end of the hollow rod passing through the arc cover is fixedly connected to the connecting plate.

[0028] Through the above technical solution, the thumb cylinder drives the connecting plate to move horizontally, thereby driving the hollow rod to move horizontally, and the structure is simple.

[0029] The beneficial effects of the present invention are as follows:

[0030] (1) In the present invention, the detection seat is driven by the walking mechanism to move along the laying path of the pipeline on the splicable guide rail. When it moves to the flange joint of two adjacent pipelines, the sealing clamping mechanism is activated to clamp the two adjacent pipelines and cover the flange joint of the two adjacent pipelines. The chemical gas leaked from the sealing surface of the flange joint will enter the sealing clamping mechanism, and the concentration of the chemical gas will be detected by the gas concentration sensor. The detection data is fed back to the gas detection mechanism, and then the gas detection mechanism detects gas leakage, thereby realizing unmanned inspection of pipeline leakage. On the one hand, no manual detection is required, which reduces the safety and health hazards caused by the inhalation of chemical gas by workers. On the other hand, there is basically no need for physical labor, and only the detection data of the gas detection mechanism needs to be collected at the control end;

[0031] (2) In the present invention, after the two arc-shaped covers cover the flange joints of the two adjacent pipes, the external air pump inflates the airbag through the air inflation tube, so that the airbag is inflated and expanded in the sealed space surrounded by the two arc-shaped covers. Since the airbag has good ductility, the airbag can fill the sealed space after expansion, and then squeeze the chemical gas leaked from the flange joint in the sealed space into the detection chamber. In this way, the chemical gas has a smaller volume in the space under the premise of unchanged molecular weight, and thus its concentration increases. In this way, the gas concentration sensor can detect the leaked chemical gas more accurately, and even if the amount of chemical gas leaked from the flange joint of the pipeline is small, the gas concentration sensor can still detect it in time, avoiding greater safety hazards and production accidents. In addition, since the volume of the airbag can shrink after deflation, it is convenient to be stored in the arc-shaped cover after inflation. The airbag is relatively soft, and even if it contacts the flange joint of the pipeline, it will not interfere with the merging action of the two arc-shaped covers;

[0032] (3) In the present invention, when the arc cover has been closed and the airbag has not been inflated, the translation unit drives the arc sheet to move toward the flange joint of the pipeline, so that the bolt receiving cavity on the arc sheet is stuck on the bolt pair at the flange joint, and the arc sheet and the receiving portion cover the multiple bolt pairs on the flange joint. Then the translation unit is reset, so that the arc sheet is attached to the end face of the flange joint, and the bolt pair is stuck in the bolt receiving cavity. In this way, when the airbag is inflated, the surface of the airbag will not contact the bolt pair, thereby avoiding the thread or corner burrs on the bolt pair from scratching the surface of the airbag, and even causing damage to the airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of an unmanned factory inspection device in the present invention;

[0034] Figure 2 yes Figure 1 A schematic diagram of the structure from another perspective;

[0035] Figure 3 yes Figure 1 The schematic diagram of the position relationship after the arc cover is omitted;

[0036] Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective;

[0037] Figure 5 It is a schematic diagram of the positional relationship of the airbag, the mounting tube and the hinge rod after being assembled in the present invention;

[0038] Figure 6 yes Figure 5 Schematic diagram of the positional relationship after the middle part of the structure is cut open;

[0039] Figure 7 It is a schematic diagram of the positional relationship between the arc cover and the pipeline after assembly in the present invention;

[0040] Figure 8 yes Figure 7 Schematic diagram of the positional relationship after the middle part of the structure is cut open;

[0041] Fig. 9 yes Figure 8 A magnified schematic diagram of the local structure at point A;

[0042] Fig.10 yes Figure 7 Schematic diagram of the explosion decomposition of the structure;

[0043] Fig.11 yes Figure 7 A schematic diagram of the structure from another perspective;

[0044] Fig.12 yes Fig.11 Schematic diagram of the positional relationship after the middle part of the structure is cut open;

[0045] Fig.13 yes Fig.12 A magnified schematic diagram of the local structure at B in the middle;

[0046] Fig.14 It is a structural schematic diagram of the arc-shaped sheet in the present invention;

[0047] Fig.15 yes Fig.14 A schematic diagram of the structure from another perspective.

[0048] Figure numerals: 1. Support bolt; 2. Strip groove; 3. Splicable guide rail; 4. Detection seat; 5. Pipeline; 6. Column; 7. Mounting tube; 8. Hinge rod; 9. Inflatable tube; 10. Hollow rod; 11. Arc cover; 12. Detection chamber; 13. Thumb cylinder; 14. Transmission module; 15. Travel drive motor; 16. Proximity switch; 17. Induction element; 18. Arc sheet; 19. Airbag; 20. Accommodation part; 21. Sliding hinge seat; 22. Connecting plate; 23. Translation cylinder; 24. Gas concentration sensor; 25. Cylinder bracket; 26. Placement part; 27. Clamping part; 28. Bolt pair; 29. ​​Bolt accommodating chamber. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] like Figure 1-Figure 15As shown, the present embodiment provides an unmanned inspection device for a factory area, comprising a pipeline 5 installed in the factory area and used for conveying finished or semi-finished chemical gases, wherein the flange joints of two adjacent pipelines 5 are tightly connected by a plurality of bolt pairs 28, a plurality of splicable guide rails 3 are laid on the ground of the factory area, a plurality of supporting bolts 1 are passed through the splicable guide rails 3, a nut is threadedly sleeved on the threaded portion of the supporting bolt 1, and the upper end surface of the nut is abutted against the lower side surface of the splicable guide rail 3, so that the supporting bolt 1 can be passed through the splicable guide rail 3 and is in a relatively static connection state with the splicable guide rail 3, and a foot is threadedly connected to the lower end of the supporting bolt 1, and the foot is threadedly connected to the splicable guide rail 3 by a plurality of supporting bolts 1. An expansion bolt or screw is installed on the ground, so that the splicable guide rail 3 is suspended and installed on the ground. In addition, a connecting pin is coaxially fixed to one axial end of the splicable guide rail 3, and a pin hole is opened at the other axial end. In this way, when assembling multiple splicable guide rails 3, the connecting pin of one splicable guide rail 3 is correspondingly inserted into the pin hole of another splicable guide rail 3, so that two adjacent splicable guide rails 3 are installed in series. In this way, multiple splicable guide rails 3 can be combined into a guide rail mechanism, and the laying direction of the guide rail mechanism is consistent with the laying path of the pipeline 5. In addition, a sensor 17 is threadedly sleeved on a supporting bolt 1 at the corresponding flange joint;

[0051] A detection seat 4 is mounted on the splicable guide rail 3. Specifically, two side walls of the detection seat 4 are provided with a through hole for the splicable guide rail 3 to pass freely. In addition, a protrusion (not shown in the figure) is welded to the hole wall of the through hole. A strip groove 2 for the protrusion to slidably engage is provided on the outer wall of the splicable guide rail 3. In this way, the protrusion is engaged in the strip groove 2 and slides freely along the length direction of the splicable guide rail 3, so that the detection seat 4 is assembled on the splicable guide rail 3 and slides freely on the splicable guide rail 3. In addition, since the protrusion is engaged in the strip groove 2, the detection seat 4 will not rotate around the circumference of the splicable guide rail 3. In addition, the detection seat 4 The lower end is fixedly connected to a motor compartment on both sides of the opposite sides, and a travel drive motor 15 is installed in the motor compartment. A travel wheel is installed on the motor shaft of the travel drive motor 15, and the travel wheel is in contact with the ground of the factory area. In this way, the travel drive motor 15 drives the travel wheel to rotate, and then the travel wheel drives the detection seat 4 to slide on the splicable guide rail 3, and realizes the movement of the detection seat 4 along the laying path of the pipeline 5. A proximity switch 16 is installed on the outer wall of the detection seat 4 through a bracket. The proximity switch 16 is used in conjunction with the induction element 17, that is, when the induction element 17 enters the induction range of the proximity switch 16, the proximity switch 16 will generate an induction signal;

[0052] The detection seat 4 has an inner cavity, and the mouth of the inner cavity is screwed to an end cover, a battery module (not shown in the figure) and a single-chip computer (not shown in the figure) are placed in the inner cavity, and a transmission module 14 is installed on the outer wall of the detection seat 4. The transmission module 14 can be a wireless transmitter (such as Bluetooth, wireless network, etc.), and the proximity switch 16, the transmission module 14, and the walking drive motor 15 are all electrically connected to the single-chip computer through a cable. A column 6 is vertically installed on the end cover, and the column 6 can be made of aluminum profiles, so that the column 6 can maintain a large length while its own weight is light. The upper end of the column 6 is connected with a mounting tube 7 by screws. The end of the mounting tube 7 away from the column 6 is open and has a strip-shaped notch groove penetrating its outer wall. A translation cylinder 23 is horizontally installed in the mounting tube 7. The end of the cylinder rod of the translation cylinder 23 is fixedly sleeved with a sliding hinge seat 21. The upper and lower outer walls of the sliding hinge seat 21 are respectively hinged with hinge rods 8, and the hinge rods 8 can freely pass through the strip-shaped notch groove. In addition, the end of the mounting tube 7 away from the column 6 is hinged with two arc covers 11 in sequence from top to bottom. The longitudinal section of the arc cover 11 is semicircular, and the arc cover 11 The inner arc surface diameter of the two arc covers 11 matches the outer diameter of the pipe 5. When the two arc covers 11 rotate relatively close to each other along the hinged joint with the mounting tube 7, the surfaces of the two arc covers 11 can abut against each other and clamp the surface of the pipe 5. The two axial ends of the arc covers 11 correspond to two pipes 5 respectively, so that the two arc covers 11 can cover the flange joints of the two adjacent pipes 5. After the two arc covers 11 are combined, the inner cavity walls of the two will enclose a sealed space, so that the flange joint is located in the sealed space. In this way, if gas leaks at the flange joint, the leaked gas will not leak out. The gas will enter the sealed space and cannot escape. In addition, a detection chamber 12 is installed on the outer wall of an arc cover 11 located below. The interior of the detection chamber 12 is hollow, and a detection hole connected to the interior of the detection chamber 12 is opened on the outer wall of the arc cover 11. A gas concentration sensor 24 is installed inside the detection chamber 12. The gas concentration sensor 24 is electrically connected to the single-chip computer through a cable. The battery module in this embodiment is used to power the travel drive motor 15, the single-chip computer, the gas concentration sensor 24, the proximity switch 16 and the transmission module 14;

[0053] An inflation tube 9 is penetrated through the upper outer wall of an arc-shaped cover 11 located above, and the inflation tube 9 is connected to an air pump placed in the inner cavity of the detection seat 4 through a hose. In addition, one end of the inflation tube 9 that penetrates into the inner side of the arc-shaped cover 11 is connected to an airbag 19, and the interior of the airbag 19 is connected to the inflation tube 9. In this way, when the external inflation pump is started, the interior of the airbag 19 can be inflated, so that the inflation volume of the airbag 19 expands, and the inflated airbag 19 can extend in the sealed space surrounded by the two arc-shaped covers 11 and fill most of the space inside the sealed space. The outer walls on both sides of the axial direction of the arc-shaped cover 11 are each fixedly connected (or integrally formed) with a placement portion 26 protruding toward the outer side of the arc-shaped cover 11, and the placement portion 26 is provided with a storage cavity on one side of the inner wall of the arc-shaped cover 11 In addition, a hollow rod 10 is coaxially slidably penetrated on the outer wall of the placement portion 26, and a pipe interface is provided at one end of the hollow rod 10 passing through the arc cover 11, and the pipe interface is connected to the air pump through an air pipe. In addition, a clamping portion 27 is coaxially fixedly connected to one end of the hollow rod 10 passing through the arc cover 11, and a connecting port is provided on one end face of the clamping portion 27 facing the flange connection, and the connecting port is communicated with the inner cavity of the hollow rod 10. An arc sheet 18 is arranged in the arc cover 11, and the contour of the arc sheet 18 is semicircular, and a plurality of accommodating portions 20 are integrally formed on one side of the arc sheet 18 facing the axial outer side of the arc cover 11, and the number and position of the accommodating portions 20 correspond to the number and position of the bolt pairs 28 on the flange joint, and a bolt accommodating cavity is provided on one side of the accommodating portion 20 facing the flange joint 29. The inner wall of the bolt accommodating chamber 29 is provided with a rubber layer (not shown in the figure). In this way, when the bolt pair 28 is inserted into the bolt accommodating chamber 29, there is friction between the rubber layer and the surface of the bolt pair 28. In addition, the accommodating portion 20 is in a sliding fit with the connecting port on the clamping portion 27. The arc-shaped piece 18 is clamped in the connecting port through a accommodating portion 20 thereon, and the inside of the hollow rod 10 is evacuated by an external vacuum pump. Under the action of negative pressure suction, the arc-shaped piece 18 can move with the clamping portion 27. In addition, the two arc-shaped pieces 18 located on the same side of the flange joint will form a complete circular ring structure, and the inner hole diameter and outer diameter of the circular ring structure are adapted to the flange joint. In addition, the arc-shaped piece 18 and the accommodating portion 20 are provided on one side of the surface facing the axial outside of the arc cover 11. A fabric layer (not shown in the figure) is arranged on the surface of the arc-shaped sheet 18 and the accommodating portion 20 by a chemical method or a physical method. The fabric layer has a good sliding effect, so that when the surface of the airbag 19 slides on the surface of the fabric layer, the surface of the airbag 19 will not be scratched, and the friction coefficient between the airbag 19 and the fabric layer is small, so that the airbag 19 can be inflated more smoothly and quickly. In addition, the placement portion 26 is provided with a storage cavity for the clamping portion 27 to pass freely, so that after the clamping portion 27 is stored in the storage cavity, the clamping portion 27 will not interfere with the inflation of the airbag 19 in the sealed space surrounded by the two arc-shaped covers 11. The outer wall of the arc-shaped cover 11 is connected to a cylinder bracket 25, and a thumb cylinder 13 is horizontally installed on the outer wall of the cylinder bracket 25.The end of the cylinder rod of the thumb cylinder 13 is fixedly connected to a connecting plate 22, and one end of the hollow rod 10 passing through the arc cover 11 is fixedly connected to the connecting plate 22, so that when the cylinder rod of the thumb cylinder 13 is extended or retracted, it will synchronously drive the hollow rod 10 to slide on the placement portion 26 of the arc cover 11.

[0054] The working principle of this embodiment is as follows:

[0055] In the initial state, the single chip microcomputer controls the battery module to energize the vacuum pump, so that the vacuum pump works and generates negative pressure airflow, and the negative pressure airflow evacuates the inner cavity of the hollow rod 10 through the pipe interface, so that the connecting port of the clamping portion 27 generates negative pressure suction force on the accommodating portion 20, thereby enabling the arc-shaped sheet 18 to be adsorbed on the clamping portion 27 and not fall off;

[0056] Then, the single chip microcomputer controls the battery module to energize the travel drive motor 15, so that the travel drive motor 15 drives the travel wheel to rotate, and the detection seat 4 moves on the ground of the factory area, and then the detection seat 4 moves along the laying path of the pipeline 5. When it moves to the flange joint of two adjacent pipelines 5, the sensing element 17 enters the sensing range of the proximity switch 16, and the proximity switch 16 generates a sensing signal and feeds it back to the single chip microcomputer. The single chip microcomputer controls the battery module to stop supplying power to the travel drive motor 15, so that the travel wheel stops rolling;

[0057] Then the single chip microcomputer controls the cylinder rod of the translation cylinder 23 to extend, so that the cylinder rod of the translation cylinder 23 drives the sliding hinge seat 21 to move in the direction close to the pipe 5, so that the hinge rod 8 drives the arc cover 11 to rotate along the hinge between the arc cover 11 and the installation cylinder 7, and then the two arc covers 11 rotate relatively close to each other until the two arc covers 11 clamp the two pipes 5 and cover the flange joints of the two pipes 5;

[0058] Subsequently, after a delay of a fixed time, the single chip microcomputer controls the cylinder rod of the thumb cylinder 13 to shorten, and causes the hollow rod 10 to slide on the placement portion 26, thereby causing the clamping portion 27 to disengage from the storage cavity, and driving the arc-shaped piece 18 to move toward the end face direction of the flange joint, until the bolt receiving cavity 29 on the receiving portion 20 is correspondingly engaged with the bolt pair 28, and then the single chip microcomputer controls the vacuum pump to stop working, so that the negative pressure suction force of the connecting port on the receiving portion 20 disappears, and then the single chip microcomputer controls the cylinder rod of the thumb cylinder 13 The hollow rod 10 drives the clamping part 27 to move toward the outside of the arc cover 11. Since the inner wall of the bolt receiving chamber 29 has a rubber layer, and the rubber layer and the surface of the bolt pair 28 generate friction, after the negative pressure suction force on the receiving portion 20 disappears, the arc sheet 18 will not move with the clamping part 27, so that the surface of the arc sheet 18 remains in contact with the end face of the flange joint, and the bolt pair 28 is correspondingly clamped in the bolt receiving chamber 29, and the clamping part 27 will eventually be received in the receiving chamber;

[0059] Then the single chip microcomputer controls the external inflation pump to generate positive pressure airflow, and the positive pressure airflow enters the airbag 19 through the inflation tube 9, so that the airbag 19 is inflated and expanded in the sealed space, and extends in the direction of the arc cover 11 located on the lower side. During the extension process, the surface of the airbag 19 is protected by the arc sheet 18 and the fabric layer on the surface of the accommodating portion 20, so that the surface of the airbag 19 will not be damaged, and the airbag 19 is in an expanded state. Since the airbag 19 can produce a filling effect on the sealed space during the extension process, the chemical gas leaked from the flange joint in the sealed space is squeezed into the detection chamber 12, thereby increasing the chemical gas concentration in the detection chamber 12, so that the gas concentration sensor 24 can detect whether there is a chemical gas leak in a relatively timely manner, and the data collected by the gas concentration sensor 24 is fed back to the single chip microcomputer in real time, and processed and analyzed by the single chip microcomputer, and then fed back to the external cloud or control end through the transmission module 14, and the staff makes a judgment;

[0060] After the detection is completed, the single chip microcomputer controls the air pump to stop working, and the compressed gas in the airbag 19 will be released from the air outlet of the air pump, the volume of the airbag 19 will shrink, and it will be re-stored in the arc-shaped cover 11 on the upper side, and then the single chip microcomputer controls the thumb cylinder 13 to start, the cylinder rod of the thumb cylinder 13 will shorten, and drive the clamping part 27 to move until the connecting port of the clamping part 27 is re-engaged with a receiving part 20 of the arc-shaped sheet 18, and then the single chip microcomputer controls the vacuum pump to work, and the air pump generates negative pressure airflow and passes through the pipe The interface generates negative pressure suction force on the inner cavity of the hollow rod 10, so that the connecting port generates negative pressure suction force on the accommodating portion 20 again, and then the thumb cylinder 13 extends again, so that the hollow rod 10 drives the arc piece 18 to move away from the flange joint, and then the cylinder rod of the translation cylinder 23 shortens, so that the hinge rod 8 drives the two arc covers 11 to rotate in the direction away from each other, so that the arc cover 11 is out of the state of clamping the pipe 5, so that the detection seat 4 moves to detect the next flange joint;

[0061] In addition, in the present embodiment, a micro compressor can be installed in the detection seat 4, and the micro compressor generates compressed air to supply air to the translation cylinder 23 and the thumb cylinder 13. In this way, there is no need to lay an air pipe to supply air to the thumb cylinder 13 and the translation cylinder 23. Of course, an air pipe can also be used to connect the thumb cylinder 13 and the translation cylinder 23 to an external compressed air pipeline according to actual conditions.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. An unmanned inspection device for a factory area, characterized in that: include: A splicable guide rail (3) laid on the ground along the pipeline (5) and a running mechanism installed on the splicable guide rail (3); A detection seat (4) connected to the walking mechanism, wherein a gas detection mechanism is provided in the detection seat (4); A column (6) vertically connected to the top of the detection seat (4), wherein the upper end of the column (6) is provided with a sealing clamping mechanism, and the sealing clamping mechanism is used to clamp two adjacent pipes (5) and cover the flange joints of the two adjacent pipes (5); A gas concentration sensor (24) is mounted on the sealing clamping mechanism, and the gas concentration sensor (24) is electrically connected to the gas detection mechanism.

2. The unmanned factory inspection device according to claim 1 is characterized in that: The walking mechanism comprises a walking drive motor (15) mounted on the outer walls on both sides of the lower end of the detection seat (4), and a motor shaft of the walking drive motor (15) is fixedly mounted with a walking wheel.

3. The unmanned factory inspection device according to claim 2 is characterized in that: The gas detection mechanism comprises a single chip microcomputer arranged in the inner cavity of the detection seat (4) and a transmission module (14) mounted on the outer wall of the detection seat (4); the single chip microcomputer is electrically connected to the gas concentration sensor (24) via a cable; the transmission module (14) is electrically connected to the single chip microcomputer via a cable; a battery module is also arranged in the inner cavity of the detection seat (4); the battery module is used to supply power to the single chip microcomputer, the transmission module (14), the gas concentration sensor (24) and the travel drive motor (15).

4. The unmanned factory inspection device according to claim 1, characterized in that: A proximity switch (16) is installed on the lower outer wall of the detection seat (4), and a sensing element (17) for use with the proximity switch (16) is provided below the splicable guide rail (3). The installation position of the sensing element (17) is adapted to the position of the flange joints of the two adjacent pipes (5).

5. The unmanned factory inspection device according to claim 1 is characterized in that: The sealing clamping mechanism comprises a mounting tube (7) horizontally connected to the outer wall of the column (6); two arc-shaped covers (11) are hingedly connected in sequence from top to bottom at one end of the mounting tube (7) close to the pipe (5); the two arc-shaped covers (11) are symmetrically arranged along the axis of the mounting tube (7); after the two arc-shaped covers (11) are rotated to a combined state, their inner cavities enclose a sealing space for covering the flange joints of two adjacent pipes (5); and the two arc-shaped covers (11) are driven to rotate by a retractable and expandable unit mounted on the mounting tube (7); a detection chamber (12) is mounted on the outer wall of one of the arc-shaped covers (11); the interior of the detection chamber (12) is hollow, and the gas concentration sensor (24) is mounted in the detection chamber (12); and a detection hole communicating with the inner cavity of the detection chamber (12) is also opened on the outer wall of the arc-shaped cover (11).

6. The unmanned factory inspection device according to claim 5, characterized in that: The retractable and extendable unit comprises a translation cylinder (23) horizontally installed in the installation tube (7), the cylinder rod end of the translation cylinder (23) is fixedly sleeved with a sliding hinge seat (21), the upper and lower outer walls of the sliding hinge seat (21) are respectively hinged with a hinge rod (8), and the end of the hinge rod (8) away from the sliding hinge seat (21) is respectively hinged to the outer walls of the two arc-shaped covers (11).

7. The unmanned factory inspection device according to claim 5, characterized in that: Another of the outer walls of the arc-shaped cover (11) is provided with an inflation tube (9), one end of the inflation tube (9) that penetrates into the arc-shaped cover (11) is connected to an air bag (19), and the air bag (19) is in communication with the inflation tube (9).

8. The unmanned factory inspection device according to claim 7, characterized in that: The outer walls on both sides of the arc cover (11) are respectively installed with translation units, and the output end of the translation unit is detachably connected with an arc sheet (18), and a plurality of accommodating portions (20) are fixedly connected to a side of the arc sheet (18) facing the outer side of the arc cover (11), and a bolt accommodating cavity (29) is provided on a side of the accommodating portion (20) facing the flange joint of the pipeline (5), and a fabric layer is provided on the surface of the arc sheet (18) and the accommodating portion (20).

9. The unmanned factory inspection device according to claim 8, characterized in that: A hollow rod (10) is horizontally and slidably penetrated through the outer wall of the arc-shaped cover (11); one end of the hollow rod (10) that penetrates into the arc-shaped cover (11) is coaxially fixedly connected with a clamping portion (27); an end surface of the clamping portion (27) is provided with a communication port that is connected with the inner cavity of the hollow rod (10); the communication port and the accommodating portion (20) form a sliding fit; one end of the hollow rod (10) that passes out of the arc-shaped cover (11) is provided with a pipe interface; the outer wall of the arc-shaped cover (11) is fixedly connected with a placement portion (26); the placement portion (26) is provided with a receiving cavity for the clamping portion (27) to pass freely.

10. The unmanned factory inspection device according to claim 9, characterized in that: The translation unit comprises a cylinder bracket (25) connected to the outer wall of the arc-shaped cover (11), a thumb cylinder (13) is horizontally mounted on the outer wall of the cylinder bracket (25), the cylinder rod end of the thumb cylinder (13) is fixedly connected to a connecting plate (22), and one end of the hollow rod (10) passing through the arc-shaped cover (11) is fixedly connected to the connecting plate (22).

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