Portable self-balancing pressure pipeline detection vehicle

Abstract

The application relates to a portable self-balancing pressure pipeline detection vehicle, and relates to the technical field of pressure pipeline detection. The detection vehicle comprises a detection frame, a driving mechanism and a detection device. The detection device comprises a rotating platform rotatably installed on the detection frame, a rotating mechanism for driving the rotating platform to rotate, and a working platform arranged on the rotating platform and used for standing workers in a vertical state. The angle of the working platform is adjusted by the rotating platform when the detection frame moves. The rotating mechanism is used for driving the working platform to rotate, so that the angle of the working platform can adapt to the bend of the pressure pipeline. When the working platform moves to the detection position, the rotating mechanism drives the working platform to rotate to the vertical state, thereby greatly improving the detection efficiency and safety of the pressure pipeline.

Description

Technical Field

[0001] This application relates to the technical field of pressure pipeline inspection, and in particular to a portable self-balancing pressure pipeline inspection vehicle. Background Technology

[0002] Pressure piping systems are an important area within industrial pressure piping systems, primarily used for various fluid transport and transmission tasks. Pressure pipelines play a crucial role in numerous industries, including petrochemicals, energy, and power generation.

[0003] Currently, traditional pressure pipeline inspection equipment is large and heavy, making it inconvenient to operate in confined spaces. This is especially true when inspecting long-distance pressure pipelines, where ease of transport and operation is crucial. Since the equipment needs to perform comprehensive inspections of the pipeline's interior, it must be able to approach multiple points on the pipeline's inner wall. However, when navigating bends in the pipeline, the equipment can easily interfere with the pipeline, necessitating complete disassembly and reassembly after passing through. This is time-consuming and labor-intensive, significantly reducing the efficiency of pressure pipeline inspection. Furthermore, the equipment must adapt to complex and changing pressure pipeline environments. For example, when inspecting bends, equipment that is vertical in a horizontal position may struggle to maintain its verticality, and tilted equipment increases the risk significantly, greatly reducing the safety of pressure pipeline inspections. Summary of the Invention

[0004] To improve the efficiency and safety of pressure pipeline inspection, this application provides a portable self-balancing pressure pipeline inspection vehicle.

[0005] This application provides a portable self-balancing pressure pipeline inspection vehicle, which adopts the following technical solution:

[0006] A portable self-balancing pressure pipeline inspection vehicle includes an inspection frame that moves within a pressure pipeline, a drive mechanism that moves the inspection frame, and an inspection device mounted on the inspection frame. The inspection device includes:

[0007] The rotating platform is mounted on the detection frame via a rotating shaft.

[0008] A rotating mechanism is used to drive the rotating platform to rotate and to lock the rotating platform.

[0009] The work platform is set on a rotating platform and is in a vertical position during use, allowing workers to stand and inspect pressure pipelines. When the inspection frame moves, the angle of the work platform is adjusted by the rotating platform to facilitate the passage of pressure pipelines.

[0010] By adopting the above technical solution, the drive mechanism drives the detection frame to move, and the detection frame drives the work platform to move to the detection location and stop moving. The operator stands on the work platform to inspect the inner wall of the pressure pipeline. When it is necessary to pass through the bend or narrow part of the pressure pipeline, the rotation mechanism drives the rotating platform and the work platform to rotate, so that the work platform rotates to a suitable angle to facilitate passage. After moving to the detection location, the rotation mechanism starts to drive the work platform to a vertical position, so that the operator can carry out the inspection on the work platform.

[0011] The rotating mechanism drives the working platform to rotate, allowing the platform angle to adapt to bends in pressure pipelines. Once the working platform is moved to the inspection location, the rotating mechanism drives it to a vertical position, making it suitable for inspection by personnel. This reduces the probability of disassembling and reassembling the entire working platform and ensures that the platform remains vertical in different environments, thus greatly improving the inspection efficiency and safety of pressure pipelines.

[0012] Meanwhile, when the work platform moves, the operator remains standing in one place, which reduces the torque on the rotating mechanism during the movement of the work platform. When the operator uses the work platform for inspection, the work platform is in a vertical position, meaning that the work platform will concentrate on the rotating shaft and rotating mechanism under the action of gravity. Although the operator will continue to move, the torque on the rotating shaft and rotating mechanism is not large, reducing the probability of damage to the rotating mechanism and reducing the force required to maintain the stability of the work platform. Therefore, it greatly improves the stability of the rotating mechanism when driving the work platform to rotate, and further improves the inspection efficiency and safety of pressure pipelines.

[0013] Optionally, the working platform includes:

[0014] The suspended basket is mounted on a pivot and is in a vertical position during use.

[0015] The main frame is detachably mounted on the suspended basket and extends horizontally to the outside of the suspended basket.

[0016] The sub-frame is rotatably mounted on the end of the main frame away from the suspended basket, and when rotated to a horizontal position, its upper surface is flush with the upper surface of the main frame.

[0017] Support components are installed on the suspended basket. When the sub-frame is rotated to a horizontal position, it presses against multiple support components for support.

[0018] Support and storage components are used to connect with the main frame and sub-frames to provide support and to drive multiple sub-frames to a vertical position for storage.

[0019] By adopting the above technical solution, the main frame and the secondary frame work together to form a standing space for the staff during inspection, thereby increasing the area of ​​the standing space and making it easier for the staff to inspect the pressure pipeline. When the work platform needs to be moved, the support and storage component is activated to drive the secondary frame to a vertical position for storage. At the same time, the rotation angle of the work platform, together with the support and storage component, makes it easier to pass through the bends of the pressure pipeline. When it is moved to the inspection location, the support and storage component drives the secondary frame to a horizontal position and presses against the support component for support, so that the staff can carry out the inspection. Moreover, the support component and the support and storage component support and position the secondary frame, thereby improving the stability of the secondary frame.

[0020] Furthermore, if the secondary frame cannot pass through the bend in the pressure pipeline when it is in a vertical position, the main frame can be disassembled to facilitate passage, thereby further improving the convenience of passing through the bend in the pressure pipeline and improving the inspection efficiency and safety of the pressure pipeline.

[0021] Optionally, multiple support and storage components are provided and connected to multiple main frames, and the support and storage components include:

[0022] Support rod one, with its top end set on the suspended basket and its bottom end tilted downwards to connect with the main frame located outside the suspended basket;

[0023] Support rods two and three are respectively rotatably connected at one end to the suspended basket and the sub-frame, and their ends, which are close to each other, are rotatably connected through a rotating tube.

[0024] A fixing rod is installed on the suspended basket and its top end extends upward at an angle to the rotating tube. The fixing rod is provided with a support hole one and a support hole two spaced apart.

[0025] The connector is plugged into the rotating tube. When the connector is plugged into the first support hole, it positions the sub-frame in a horizontal position. When the connector is plugged into the second support hole, it positions the sub-frame in a vertical position.

[0026] By adopting the above technical solution, support rod one is used to support and position the main frame, while support rod two and support rod three work together to support the sub-frame. Simultaneously, the connector is inserted into the rotating pipe and support hole one to position the sub-frame, allowing the fixed rod to also support and position the sub-frame, thus further improving the stability of the sub-frame. When the sub-frame needs to be stored, the connector is pulled out of support hole one, and then support rod one and support rod two are pulled to drive the sub-frame to rotate, making it vertical. The connector is then inserted into support hole two for positioning. Therefore, the sub-frame can be positioned vertically, further improving the convenience of operation and thus enhancing the inspection efficiency and safety of the pressure pipeline.

[0027] Optionally, the fixing rod is provided with snap-fit ​​holes at both support hole one and support hole two, and positioning nuts are snapped into both snap-fit ​​holes. When the plug is inserted into support hole one or support hole two, it is threadedly connected to the positioning nuts for positioning.

[0028] By adopting the above technical solution, the probability of the connector coming loose is reduced by connecting the connector to the positioning nut via a threaded connection, thereby further improving the positioning effect and enhancing the safety of pressure pipeline inspection.

[0029] Optionally, multiple main frames and sub-frames are horizontally spaced apart, and an arc-shaped balance beam is provided between two adjacent main frames.

[0030] By adopting the above technical solution, multiple main frames and sub-frames are spaced apart, which makes the force on the suspended basket balanced. At the same time, the connection between two adjacent main frames is achieved by a balance beam, so that when a single main frame is under stress, the force can be distributed to other main frames, which further improves the stability during testing. In addition, the balance beam can also be disassembled when the main frame is disassembled, which further reduces the space occupied and makes it easier to pass through pressure pipelines, thereby further improving the testing efficiency and safety of pressure pipelines.

[0031] Optionally, the top of the suspended platform is equipped with multiple guardrails that rotate at intervals. When the guardrails are placed vertically upward, they are connected to form a protective workspace. Alternatively, when the guardrails are placed vertically downward, they are used to reduce the height of the work platform and facilitate the passage of pressure pipes through the work platform.

[0032] By adopting the above technical solution, during testing, multiple guardrails are rotated upwards to a vertically upward position, and then connected together for positioning, so that the multiple guardrails work together to protect the workers. When the work platform needs to be moved, the multiple guardrails are disassembled and rotated downwards, so that the guardrails extend downwards to below the connection between the guardrail and the suspended basket, thereby reducing the height of the work platform and making it easier to pass through pressure pipelines. This simultaneously improves the testing efficiency and safety of pressure pipelines.

[0033] Optionally, the drive mechanism includes:

[0034] Multiple guide wheels are spaced apart inside the pressure pipe along its axis.

[0035] The winch is installed inside the pressure pipeline;

[0036] The steel wire rope is wound on the winch and passes through multiple guide wheels before being connected to the detection frame and used to drag and position the detection frame.

[0037] Multiple support wheel sets are rotatably set at the bottom of the detection frame and roll on the inner wall of the pressure pipeline for support and positioning;

[0038] A traction vehicle is mounted on the detection frame and is used to drive the detection frame to move.

[0039] By adopting the above technical solution, a winch is installed at the outlet of the pressure pipeline. A steel wire rope is wound on the winch and connected to the detection frame. Multiple guide wheels are rotated and installed on the inner wall of the pressure pipeline. Therefore, the steel wire rope passes around multiple guide wheels, and multiple support wheel sets on the detection frame roll on the inner wall of the pressure pipeline. Thus, the winch wound the steel wire rope and pulled the detection frame and the working platform to move. At the same time, the traction vehicle cooperates to drive the detection frame to move, thereby realizing the movement of the working platform.

[0040] Optionally, the rotating mechanism includes:

[0041] A collection tray is mounted on the rotating shaft;

[0042] Multiple rotating wheels are mounted on the bottom of the work platform.

[0043] The steel rope is wound onto a collection tray and connected to the work platform after both ends are wrapped around at least one rotating wheel.

[0044] Rotating assembly, used to drive the collection tray to rotate.

[0045] By adopting the above technical solution, the two ends of the steel rope are wrapped around the rotating wheel and fixedly connected to the bottom of the working platform. The rotating component starts to drive the rotating shaft and the collecting plate to rotate. The rotation of the collecting plate causes one section of the steel rope connected to the working platform to extend while the other section retracts and shortens, thereby driving the working platform to rotate. Therefore, the two sections of steel rope outside the collecting plate can exert a force on the bottom of the working platform under the action of the guide wheel, which improves the stability of the working platform after adjustment. Moreover, the rotation of the collecting plate drives the rotation of the working platform, which makes the adjustable angle range of the working platform larger, so that the adjusted angle of the working platform can be closer to the required angle, that is, it is easier to pass through the bends of the pressure pipeline, thereby improving the detection efficiency and safety of the pressure pipeline.

[0046] Optionally, the rotating assembly includes:

[0047] Gears are mounted on a rotating shaft;

[0048] The rack is slidably mounted on the detection frame and meshes with the gear;

[0049] A pusher is mounted on the detection frame and is used to drive the rack to move.

[0050] By adopting the above technical solution, the pusher starts the rack to move, the rack moves to drive the gear and the shaft to rotate, the shaft rotates to drive the collection tray to rotate, thereby adjusting the angle of the working platform. After the conditions are met, the pusher is used to maintain the position of the rack, that is, to maintain the angle of the working platform, and never drives the collection tray to rotate.

[0051] Optionally, the rack is provided with two pressure-bearing components located on both sides of the working platform, the pressure-bearing components including:

[0052] The pressure bar is mounted on the rack and extends downwards to near the bottom of the work platform;

[0053] The pressure block is slidably mounted on the bottom of the pressure rod in a direction that is close to or away from the working platform;

[0054] The spring is connected at both ends to the pressure rod and the pressure block, respectively.

[0055] The pressure rollers are rotatably mounted on one end of the pressure block near the working platform. The two pressure rollers are positioned by pressing against the opposite side walls of the working platform under the action of springs.

[0056] By adopting the above technical solution, the two pressure rollers are positioned by pressing against the opposite side walls of the working platform under the action of springs. The rack moves to drive the pressure rod to move, and the pressure rod moves to drive the pressure block and pressure rollers to move. At the same time, the working platform rotates, while the two pressure rollers continue to press against the working platform under the action of springs, thus continuing to support the working platform. Therefore, it can better support the working platform, distribute the force to the rotating shaft, reduce the torque of the working platform on the rotating shaft, improve the stability of the working platform during the angle adjustment process, and improve the detection efficiency and safety of pressure pipelines.

[0057] In summary, this application includes at least one of the following beneficial technical effects:

[0058] 1. The rotating mechanism drives the working platform to rotate, allowing the platform angle to adapt to bends in pressure pipelines. Once the working platform is moved to the inspection location, the rotating mechanism drives it to a vertical position, making it suitable for inspection by personnel. This reduces the probability of disassembling and reassembling the entire working platform and ensures that the platform remains vertical in different environments, thus greatly improving the inspection efficiency and safety of pressure pipelines.

[0059] 2. When moving the work platform, the operator remains standing in one place, which reduces the torque on the rotating mechanism during the movement of the work platform. When the operator uses the work platform for inspection, the work platform is in a vertical position, meaning that the work platform will concentrate on the rotating shaft and rotating mechanism under the action of gravity. Although the operator will move continuously, the torque on the rotating shaft and rotating mechanism is not large, reducing the probability of damage to the rotating mechanism and reducing the force required to maintain the stability of the work platform. Therefore, it greatly improves the stability of the rotating mechanism when driving the work platform to rotate, and further improves the inspection efficiency and safety of pressure pipelines. Attached Figure Description

[0060] Figure 1 This is a structural schematic diagram of a pipeline inspection vehicle;

[0061] Figure 2 yes Figure 1 A cross-sectional schematic diagram of AA in the middle;

[0062] Figure 3 This is a structural diagram of the rotating mechanism and pressure-bearing components in a pipeline inspection vehicle;

[0063] Figure 4 This is a structural diagram of the mounting plate and guardrail in the pipeline inspection vehicle;

[0064] Figure 5 This is a schematic diagram of the support and storage components in the pipeline inspection vehicle;

[0065] Figure 6 This is a structural diagram of the support and storage components in the pipeline inspection vehicle from another angle.

[0066] Reference numerals: 1. Pressure pipeline; 11. Detection frame; 12. Rotating shaft; 13. Guard rod; 14. Guard rail; 15. Connecting plate; 16. Insert rod; 17. Rotating pipe; 18. Mounting plate; 2. Drive mechanism; 21. Guide wheel; 22. Winch; 23. Wire rope; 24. Support wheel assembly; 3. Detection device; 31. Rotating platform; 4. Working platform; 41. Suspended basket; 42. Main frame; 43. Sub-frame; 44. Support component; 5. Support retractor Components: 51. Support rod one; 52. Support rod two; 53. Support rod three; 54. Fixing rod; 55. Connector; 56. Support hole one; 57. Support hole two; 58. Snap-fit ​​hole; 59. Positioning nut; 6. Rotating mechanism; 61. Collection tray; 62. Rotating wheel; 63. Steel rope; 7. Rotating assembly; 71. Gear; 72. Rack; 73. Pushing component; 8. Pressure-bearing assembly; 81. Pressure-bearing rod; 82. Pressure-bearing block; 83. Spring; 84. Pressure-bearing wheel. Detailed Implementation

[0067] The following provides a further detailed description of this application.

[0068] This application discloses a portable self-balancing pressure pipeline inspection vehicle.

[0069] Reference Figure 1 The portable self-balancing pressure pipeline 1 inspection vehicle includes an inspection frame 11 that moves inside the pressure pipeline 1, a drive mechanism 2 that drives the inspection frame 11 to move, and an inspection device 3 that is mounted on the inspection frame 11 and is used to inspect the inner wall of the pressure pipeline 1.

[0070] Reference Figure 1 The detection frame 11 is assembled from multiple individual skeletons and plates, and the bottom of the detection frame 11 has a polygonal structure, which facilitates the personnel to enter the pressure pipeline 1 for assembly. The drive mechanism 2 includes multiple guide wheels 21, a winch 22, a wire rope 23, multiple support wheel sets 24, and a traction vehicle. The multiple guide wheels 21 are spaced apart along the axis of the pressure pipeline 1 and are located at the bottom wall of the pressure pipeline 1. The winch 22 is fixedly installed at the bottom wall of the pressure pipeline 1 and is located at the outlet of the pressure pipeline 1. The wire rope 23 is wound on the winch 22 and fixedly connected to the side wall of the detection frame 11.

[0071] Multiple support wheel sets 24 are rotatably mounted on the bottom of the detection frame 11, and the multiple support wheel sets 24 are positioned on the inner bottom wall of the pressure pipeline 1; the traction car moves on the inner bottom wall of the pressure pipeline 1 and is connected to the detection frame 11; the winch 22 is located at the pipe opening of the pressure pipeline 1, and the winch 22 winds up the wire rope 23, the wire rope 23 pulls the detection frame 11 to move, and at the same time the traction car starts and the winch 22 cooperates to drive the detection frame 11 to move on the inner side wall of the pressure pipeline 1.

[0072] Reference Figure 2 and 3 The detection device 3 includes a rotating platform 31, a rotating mechanism 6, and a working platform 4. A horizontal rotating shaft 12 is fixedly installed on the side wall of the detection frame 11, and the rotating shaft 12 is perpendicular to the axis of the pressure pipeline 1. The rotating platform 31 is coaxially fixedly installed on the rotating shaft 12. The rotating mechanism 6 is used to drive the rotating platform 31 to rotate and to lock the rotating platform 31. The working platform 4 is fixedly installed on the rotating platform 31 and is in a vertical position when in use, allowing the operator to stand and detect the pressure pipeline 1. When the detection frame 11 moves, the angle of the working platform 4 is adjusted by the rotating platform 31 to facilitate the passage of the pressure pipeline 1. At the same time, the rotating mechanism 6 and the working platform 4 are both assembled by splicing multiple rod and plate structures.

[0073] Reference Figure 2 and 3The working platform 4 includes a suspended basket 41, a main frame 42 and a secondary frame 43, a support member 44 and a support and storage assembly 5. The suspended basket 41 is fixedly installed on the rotating platform 31. The top of the suspended basket 41 extends vertically upward above the detection frame 11 and the bottom is set vertically downward. At the same time, the distance between the bottom of the suspended basket 41 and the rotating shaft 12 is greater than the distance between the top and the rotating shaft 12, so that the suspended basket 41 can automatically rotate to a vertical state under the action of gravity.

[0074] Reference Figure 2 and 4 The suspended platform 41 is vertically spaced with multiple layers of moving space for workers to stand in, and connecting ladders are installed between adjacent layers to facilitate worker movement. A horizontal mounting plate 18 is fixedly installed on the top of the suspended platform 41. Four guardrails 14 are spaced apart on the upper surface of the mounting plate 18 and are vertical. A connecting plate 15, which is horizontal and rotatably connected to the upper surface of the mounting plate 18, is fixedly installed at the bottom of the guardrails 14. The four guardrails 14 are rotated to be vertically upward and adjacent guardrails 14 are positioned by inserting U-shaped rods 16, so that the four guardrails 14 cooperate to form a U-shaped working space, which facilitates workers to inspect the inner wall of the pressure pipeline 1. Alternatively, after removing the rods 16, the four guardrails 14 are rotated so that the connecting plate 15 abuts against the upper surface of the mounting plate 18, and the guardrails 14 are rotated to the outside of the mounting plate 18 and extend vertically downward to below the mounting plate 18, reducing the height of the working platform 4, which facilitates the movement of the working platform 4 through the bends of the pressure pipeline 1.

[0075] Reference Figure 2 , Figure 5 The main frame 42 and the auxiliary frame 43 are arranged one-to-one and are arranged in multiple layers at vertical intervals. At the same time, multiple main frame 42 and auxiliary frame 43 are arranged in a circular array around the vertical center line of the suspended basket 41. The main frame 42 is horizontal and can be detachably installed on the outer wall of the suspended basket 41. An arc-shaped balance beam is fixedly installed between two adjacent main frame 42s on the same horizontal plane. The balance beam is used to connect multiple main frame 42s into a whole, so that the force is more balanced.

[0076] The sub-frame 43 is rotatably mounted on the end of the main frame 42 away from the suspended basket 41, and the length of the sub-frame 43 is less than the length of the main frame 42. The support member 44 is fixedly mounted on the end of the main frame 42 away from the suspended basket 41 and located below the sub-frame 43. When the sub-frame 43 is in a horizontal state, it presses against the support member 44 for support and positioning. At this time, the upper surfaces of the sub-frame 43 and the main frame 42 are flush, which makes it easier for the staff to inspect the pressure pipe 1. Alternatively, the sub-frame 43 can be rotated to a vertical state for storage, which makes it easier for the work platform 4 to pass through the bend of the pressure pipe 1.

[0077] If the secondary frame 43 cannot pass through the bend of the pressure pipe 1 even when rotated to a vertical position, the main frame 42 and the secondary frame 43 can be removed according to the obstruction, so as to facilitate passing through the bend of the pressure pipe 1. Protective rods 13 for protection can be detachably installed on the upper surface of the main frame 42 and the upper surface of the secondary frame 43. When the secondary frame 43 rotates, some of the protective rods 13 are removed first to avoid the obstruction.

[0078] Reference Figure 2 , Figure 5 and Figure 6 The support and storage assembly 5 is used to connect with the main frame 42 and the sub-frame 43 to provide support and can drive multiple sub-frames 43 to rotate to a vertical position for storage. Multiple support and storage assemblies 5 are arranged at intervals and correspond one-to-one with multiple main frames 42. The support and storage assembly 5 includes support rod 1 51, support rod 2 52 and support rod 3 53, fixing rod 54 and plug-in 55. One end of support rod 1 51 is detachably installed on the side wall of the suspended basket 41 and the other end is inclined downward and detachably connected to the main frame 42. Alternatively, both ends of support rod 1 51 can be detachably connected to two corresponding main frames 42 in two adjacent layers. The two support rods 1 51 form a cross scissor shape.

[0079] The top end of support rod 2 52 is detachably mounted on the side wall of the suspended basket 41, and the other end is inclined downward. Support rod 2 52 is rotatably connected to the suspended basket 41. The bottom end of support rod 3 53 is rotatably mounted on the side wall of the sub-frame 43 away from the main frame 42, and the top end of support rod 3 53 is inclined upward and rotatably connected to the bottom end of support rod 2 52 through rotating tube 17. Fixed rod 54 is fixedly mounted on the side wall of the suspended basket 41, and the top end is inclined upward and extends to the rotating tube 17. Support hole 1 56 and support hole 2 57 are arranged in a circular array around the axis of rotation of the top end of support rod 2 52. Support hole 1 56 is located above support hole 2 57. At the same time, a regular hexagonal snap-fit ​​hole 58 is opened on the side wall of fixed rod 54 at support hole 1 56 and support hole 2 57. Positioning nuts 59 are snapped into both snap-fit ​​holes 58.

[0080] When the sub-frame 43 is in a horizontal state, the connector 55 is inserted into the rotating tube 17 and threaded onto the positioning nut 59 after passing through the support hole 1 56 for positioning. When the sub-frame 43 needs to be stored, the connector 55 and the positioning nut 59 are screwed off from the support hole 1 56, and the support rod 2 52 is rotated to pull the support rod 3 53 and the sub-frame 43 to rotate. The bottom end of the support rod 2 52, i.e., the rotating tube 17, rotates downward to the support hole 2 57. At this time, the sub-frame 43 rotates to a vertical state. The connector 55 is threaded onto the positioning nut 59 after passing through the support hole 2 57 for positioning. This allows for positioning of the sub-frame 43 in two states, and the structure is simple and stable.

[0081] Reference Figure 2 , Figure 3 The rotating mechanism 6 includes a collection tray 61, multiple rotating wheels 62, a steel rope 63, and a rotating assembly 7. The collection tray 61 is coaxially fixed on the rotating shaft 12. There are at least two rotating wheels 62, which are evenly divided into two groups. The rotating wheels 62 are rotatably mounted on the side wall of the suspended basket 41 near the bottom. The two groups of rotating wheels 62 are horizontally spaced apart and located below the rotating shaft 12. The steel rope 63 is wound on the collection tray 61, and the two ends of the steel rope 63 extend from both sides of the axis of the collection tray 61 to form two connecting sections. The two connecting sections pass downwards around the two groups of rotating wheels 62 and then pass upwards between the two groups of guide wheels 21. Finally, the two ends of the steel rope 63 are fixedly connected to the suspended basket 41. The rotation of the collection tray 61 causes one connecting section to be released and extended while the other connecting section is wound up and shortened, thereby pulling the suspended basket 41 to rotate.

[0082] The rotating assembly 7 drives the collection tray 61 to rotate. The rotating assembly 7 includes a gear 71, a rack 72, and a pusher 73. The gear 71 is keyed to the rotating shaft 12. The rack 72 is horizontally slidably mounted on the side wall of the detection frame 11. The pusher 73 is a hydraulic cylinder or an electric actuator, fixedly mounted on the side wall of the detection frame 11, and its piston rod is connected to the rack 72. The pusher 73 drives the rack 72 to move, which in turn drives the gear 71 and the rotating shaft 12 to rotate. The rotation of the rotating shaft 12 drives the suspended basket 41 to rotate, thereby adjusting the angle of the working platform 4 to facilitate passage through the bends of the pressure pipe 1.

[0083] Two pressure-bearing components 8 are provided on the lower surface of the rack 72 on both sides of the suspended basket 41. The pressure-bearing components 8 include a pressure rod 81, a pressure block 82, a spring 83, and a pressure wheel 84. The pressure rod 81 is fixedly installed on the lower surface of the rack 72 and extends downward to near the bottom of the suspended basket 41. At the same time, the pressure rod 81 is located on the outside of the suspended basket 41. The pressure block 82 is slidably disposed at the bottom of the pressure rod 81 in the direction of approaching or away from the suspended basket 41. The spring 83 is fixedly installed on the pressure block 82 and fixedly connected to the pressure rod 81. The pressure wheel 84 is rotatably installed on the end of the pressure block 82 near the suspended basket 41. The two pressure wheels 84 are positioned against the opposite side walls of the suspended basket 41 under the elastic force of the two springs 83.

[0084] The rack 72 drives the suspended basket 41 to rotate. At the same time, the movement of the rack 72 drives the two pressure rods 81 to move, and the movement of the pressure rods 81 drives the two pressure wheels 84 to move. Therefore, the two pressure wheels 84 are positioned by pressing against the suspended basket 41 under the action of the spring 83, which can distribute the torque on the rotating shaft 12 and improve the stability of the working platform 4 during the angle adjustment process.

[0085] The working principle of this application embodiment is as follows:

[0086] The winch 22 starts and drives the detection frame 11 and the work platform 4 to move, and then the staff conducts inspection inside the pressure pipeline 1. When it is necessary to pass through the bend or narrow part of the pressure pipeline 1, the pusher 73 starts and pushes the work platform 4 to rotate, thereby adjusting the angle of the work platform 4 to facilitate passing through the bend or narrow part of the pressure pipeline 1. After reaching the inspection point, the pusher 73 drives the work platform 4 to rotate back, so that the suspended basket 41 is in a vertical state, thereby greatly improving the inspection efficiency and safety of the pressure pipeline 1.

[0087] Before moving the work platform 4, the connector 55 is loosened to disengage from the positioning nut 59 and the first support hole 56. The second support rod 52 is pulled to rotate the sub-frame 43 to a vertical position. The connector 55 is then loosened to pass through the second support hole 57 and threadedly connected to the positioning nut 59. This allows the sub-frame 43 to be rotated to a vertical position for storage, reducing the space occupied by the work platform 4 and facilitating the passage of the pressure pipeline 1. After moving to the inspection location, the connector 55 is loosened to disengage from the second support hole 57 and the positioning nut 59. The second support rod 52 is pulled to drive the sub-frame 43 to a horizontal position. The sub-frame 43 is positioned against the support member 44. The connector 55 is then threaded through the second support hole 57 and threadedly connected to the positioning nut 59. The second support rod 52, the third support rod 53, and the fixing rod 54 work together to support and position the sub-frame 43. The sub-frame 43, together with the main frame 42, is used by the staff for inspection, further improving the convenience of passing through the pressure pipeline 1 and enhancing the inspection efficiency and safety of the pressure pipeline 1.

[0088] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable self-balancing pressure pipeline inspection vehicle, characterized in that: The system includes a detection frame (11) that moves within a pressure pipeline (1), a drive mechanism (2) that drives the detection frame (11) to move, and a detection device (3) mounted on the detection frame (11). The detection device (3) includes: The rotating platform (31) is rotatably mounted on the detection frame (11) via the rotating shaft (12); The rotating mechanism (6) is used to drive the rotating platform (31) to rotate and to lock the rotating platform (31); The work platform (4) is set on the rotating platform (31) and is in a vertical position when in use, and is used for workers to stand and inspect the pressure pipe (1). When the inspection frame (11) moves, the angle of the work platform (4) is adjusted by the rotating platform (31) to facilitate the passage of the pressure pipe (1). The working platform (4) includes: The suspended basket (41) is mounted on the pivot (12) and is in a vertical position when in use; The main frame (42) is detachably mounted on the suspended basket (41) and extends horizontally to the outside of the suspended basket (41); The sub-frame (43) is rotatably mounted on the end of the main frame (42) away from the suspended basket (41) and its upper surface is flush with the upper surface of the main frame (42) when it is rotated to a horizontal state; Support members (44) are installed on the suspended basket (41). When the subframe (43) is rotated to a horizontal state, it presses against multiple support members (44) for support. Support and storage component (5) is used to connect with the main frame (42) and the sub-frame (43) to provide support and to drive multiple sub-frames (43) to rotate to the vertical position for storage; The support and storage components (5) are provided in multiple ways and connected to multiple main frames (42). The support and storage components (5) include: Support rod 1 (51) has its top end set on the suspended basket (41) and its bottom end tilted downward to connect with the main frame (42) located outside the suspended basket (41); Support rod 2 (52) and support rod 3 (53) are respectively rotatably connected to the suspended basket (41) and the sub-frame (43) at one end and are close to each other at the other end through the rotating tube (17); A fixing rod (54) is set on the suspended basket (41) and its top end extends upward to the rotating tube (17). The fixing rod (54) is provided with a support hole one (56) and a support hole two (57) spaced apart. The connector (55) is inserted and installed on the rotating tube (17). When the connector (55) is inserted and installed in the first support hole (56), it positions the sub-frame (43) in a horizontal state. When the connector (55) is inserted and installed in the second support hole (57), it positions the sub-frame (43) in a vertical state.

2. The portable self-balancing pressure pipeline inspection vehicle according to claim 1, characterized in that: The fixing rod (54) has snap-fit ​​holes (58) at both the support hole one (56) and the support hole two (57). A positioning nut (59) is snapped into each of the two snap-fit ​​holes (58). When the plug-in (55) is plugged into the support hole one (56) or the support hole two (57), it is threadedly connected to the positioning nut (59) for positioning.

3. The portable self-balancing pressure pipeline inspection vehicle according to claim 1, characterized in that: The main frame (42) and the auxiliary frame (43) are arranged horizontally at multiple intervals, and an arc-shaped balance beam is arranged between two adjacent main frames (42).

4. The portable self-balancing pressure pipeline inspection vehicle according to claim 1, characterized in that: The top of the suspended basket (41) is equipped with multiple guardrails (14) that rotate at intervals. When the multiple guardrails (14) are placed vertically upward, they are connected to each other to form a protective workspace. Alternatively, when the multiple guardrails (14) are placed vertically downward, they are used to reduce the height of the work platform (4) and facilitate the passage of the work platform (4) through the pressure pipe (1).

5. A portable self-balancing pressure pipeline inspection vehicle according to claim 1, characterized in that: The drive mechanism (2) includes: Multiple guide wheels (21) are spaced apart inside the pressure pipe (1) along the axis of the pressure pipe (1); The winch (22) is installed inside the pressure pipeline (1); The wire rope (23) is wound on the winch (22) and passes through multiple guide wheels (21) before being connected to the detection frame (11) and used to drag and position the detection frame (11); Multiple support wheel sets (24) are rotatably set at the bottom of the detection frame (11) and roll on the inner wall of the pressure pipe (1) for support and positioning; A traction vehicle is mounted on the detection frame (11) and is used to drive the detection frame (11) to move.

6. A portable self-balancing pressure pipeline inspection vehicle according to claim 1, characterized in that: The rotating mechanism (6) includes: A collection tray (61) is mounted on a rotating shaft (12); Multiple rotating wheels (62) are rotatably mounted on the bottom of the work platform (4); The steel rope (63) is wound on the collection tray (61) and both ends are wrapped around at least one rotating wheel (62) before being connected to the working platform (4); Rotating component (7) is used to drive the collection tray (61) to rotate.

7. A portable self-balancing pressure pipeline inspection vehicle according to claim 6, characterized in that: The rotating assembly (7) includes: Gear (71) is mounted on shaft (12); A rack (72) is slidably mounted on the detection frame (11) and meshes with a gear (71); A pusher (73) is mounted on the detection frame (11) and is used to drive the rack (72) to move.

8. A portable self-balancing pressure pipeline inspection vehicle according to claim 7, characterized in that: The rack (72) is provided with two pressure-bearing components (8) located on both sides of the working platform (4), and the pressure-bearing components (8) include: The pressure bar (81) is mounted on the rack (72) and extends downward to near the bottom of the working platform (4); The pressure block (82) is slidably disposed on the bottom of the pressure rod (81) in a direction close to or away from the working platform (4); The spring (83) is connected at both ends to the pressure rod (81) and the pressure block (82) respectively; The pressure rollers (84) are rotatably mounted on one end of the pressure block (82) near the working platform (4). The two pressure rollers (84) are positioned by pressing against the opposite side walls of the working platform (4) under the action of the spring (83).

Images