Portable video equipment for power grid image acquisition

Abstract

The invention relates to the technical field of electric power grids, and discloses an electric power grid image acquisition portable video device which comprises a camera body, a camera lens and a plurality of light supplementing lamps, the camera lens and the light supplementing lamps are arranged on the camera body, a rotating seat is arranged on the rear side of the camera body, and a moving cylinder is rotationally arranged at the upper end of the rotating seat; a hollow cylinder is slidably sealed outside the moving cylinder, a mounting seat is arranged at the upper end of the hollow cylinder, and an electric push rod is arranged at the front end of the mounting seat; according to the portable video equipment for power grid image acquisition, the electric push rod pushes the mounting base and the camera body to move synchronously, the distance between the camera lens and secondary equipment is adjusted, vertical downward shooting of a secondary equipment array is achieved, visual angle deviation is eliminated, meanwhile, through movement adjustment, the shooting range of the camera lens is widened, and the shooting efficiency is improved. And the central sucking disc and the plastic sucking disc are adsorbed on the surface of the safety helmet by utilizing the air exhaust assembly, so that a worker can conveniently mount, carry, dismount and use the whole equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power grid, in particular to a power grid image acquisition portable video device. BACKGROUND

[0002] The current power operation logic anti-misoperation technology presents a pattern of "primary equipment technology anti-misoperation as the main, secondary equipment management anti-misoperation as the auxiliary", the traditional microcomputer anti-misoperation system guarantees the safety of primary equipment operation through the cooperation of "five anti" logic and hardware lock, and the secondary equipment still relies on manual inspection and other management means. In recent years, new technologies such as image recognition, semantic modeling and intelligent contract have been gradually applied, promoting the development of anti-misoperation system towards intelligence and multi-modal direction.

[0003] When performing manual inspection, workers use a camera or an image scanning device to collect images of secondary pressure plates, air switches and handles, and then perform denoising and separation processing on the collected images, and then perform image recognition operation to correctly identify the running state of the secondary equipment in the image. When collecting images, workers use a camera to take pictures or install the camera on a safety helmet through fastening screws or other fasteners, so that the angle adjustment depends on manual operation, it is difficult to vertically align small size targets such as pressure plates and air switches, which may cause incomplete pictures and poor focusing image distortion, and the connection mode between the camera and the safety helmet is too complex when not in use, which is not convenient for installing, carrying and removing the camera. Therefore, we propose a power grid image acquisition portable video device to solve the above technical defects. SUMMARY

[0004] (I) Technical problems to be solved

[0005] In view of the deficiencies of the prior art, the present application provides a power grid image acquisition portable video device.

[0006] (II) Technical solutions

[0007] To achieve the above purpose, the present application provides the following technical scheme: a power grid image acquisition portable video device, comprising a camera body, a camera lens arranged on the camera body, and a plurality of light supplement lamps, a rotating seat is arranged on the rear side of the camera body, a moving cylinder is rotatably arranged on the upper end of the rotating seat, a hollow cylinder is slidably sealed on the outside of the moving cylinder, an installation seat is arranged on the upper end of the hollow cylinder, and an electric push rod is arranged on the front end of the installation seat;

[0008] A winding assembly is arranged on the installation seat, a pull rope is arranged on the winding assembly, the other end of the pull rope passes through the installation seat, the hollow cylinder and the moving cylinder, and is connected with the bottom wall of the moving cylinder, the winding assembly winds and unwinds the pull rope, and drives the moving cylinder to move;

[0009] The lower front end of the electric push rod is provided with a connecting cylinder, and the other end of the connecting cylinder is connected to a central suction cup. The mounting base is provided with an air extraction component that is connected to the connecting cylinder.

[0010] The upper outer part of the central suction cup has multiple annular flexible strips distributed at equal intervals around the center, and the lower end of the flexible strips has multiple plastic suction cups, which are connected to the connecting cylinder through connectors.

[0011] Furthermore, the winding assembly includes a miniature servo motor located on the right side of the mounting base and a pair of guide wheels rotating between the left and right sidewalls of the inner cavity of the mounting base. The output end of the miniature servo motor is provided with a winding roller located inside the mounting base and rotating with the inner wall of the mounting base. The outside of the winding roller is connected to the pull rope, and the pull rope passes around the pair of guide wheels.

[0012] Furthermore, the air extraction assembly includes a sealing cylinder disposed on the upper end of the mounting base, a miniature electric push rod disposed at the upper end of the sealing cylinder, a sealing piston disposed at the push rod of the miniature electric push rod located inside the sealing cylinder and sealingly fitted to the inner wall of the sealing cylinder, and a flexible hose communicating between the lower end of the sealing cylinder and the connecting cylinder.

[0013] Furthermore, the connector includes a flexible tube disposed at the upper end of the flexible strip and communicating with the plastic suction cup;

[0014] The flexible tube is connected to the connecting cylinder.

[0015] Furthermore, the upper outer end of the movable cylinder is provided with a sealing rubber ring that fits and seals against the inner wall of the hollow cylinder.

[0016] Furthermore, the upper end of the camera body is provided with a pair of sockets, and a telescopic rod connected to the mounting base is inserted into the sockets.

[0017] Furthermore, the rotating seat is externally threaded with a fastening screw that contacts the outside of the moving cylinder.

[0018] Furthermore, the lower end of the hollow cylinder is provided with a threaded groove, and the outer side of the movable cylinder is provided with a plurality of annularly distributed track grooves. The lower end of the hollow cylinder is provided with a limiting seat that corresponds to the number of track grooves and is located outside the track grooves. A movable column is slidably inserted through the limiting seat, and a shock-absorbing ball is provided at one end of the movable column located inside the track groove.

[0019] An adjusting nut is threaded into the groove, and a rotating sleeve rotates around the outer circumference of the adjusting nut. A rotating connecting rod is hinged between the rotating sleeve and the moving column.

[0020] Furthermore, the track groove is semi-circular, and its diameter is the same as that of the shock-absorbing ball.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the present invention provides a portable video device for acquiring images of power grids, which has the following beneficial effects:

[0023] 1. This portable video acquisition device for power grid images uses a central suction cup and a plastic suction cup on a flexible belt to adhere to the upper surface of the secondary equipment cabinet. This ensures the camera lens is horizontally positioned directly in front of the secondary pressure plate, circuit breakers, handles, and other equipment. Simultaneously, an air extraction assembly connects the central suction cup and plastic suction cup to the cabinet, expelling air from the gaps between them and ensuring a tight seal. After securing the device, a winding assembly rewinds and releases a pull rope, causing the moving cylinder to move within the hollow cylinder. This, in turn, moves the camera body on the rotating base vertically, allowing the camera lens to move up and down for imaging. An electric push rod further moves the mounting base and camera body synchronously, adjusting the distance between the camera lens and the secondary equipment. This enables vertical downward imaging of the secondary equipment array, eliminating viewing angle deviations. The adjustment also increases the camera's field of view, preventing missed shots.

[0024] 2. This portable video device for acquiring images of power grids, after being attached to the center of the top of a safety helmet by a central suction cup, uses the deformable flexible strap to deform the flexible strap and cause the plastic suction cup to adhere to the outer arc surface of the safety helmet. The air extraction component is used to make the central suction cup and the plastic suction cup adhere to the surface of the safety helmet, which makes it easy for workers to install, carry and disassemble the whole device.

[0025] Furthermore, the telescopic rod set inside the socket, along with the telescopic cooperation between the hollow cylinder and the moving cylinder, and their triangular distribution, ensures that the camera body avoids swaying during camera movement under the three-point support telescopic up-and-down movement. Simultaneously, by rotating the adjusting nut in the threaded groove, the rotating sleeve and adjusting nut rotate, ensuring that the rotating connecting rod does not rotate accordingly. As the adjusting nut moves, it drives the rotating connecting rod to rotate, pushing the moving column within the limit seat. This allows the adjusting shock-absorbing balls to move and engage with the track grooves on the moving column. This achieves stable shock absorption for the moving column during movement, as the annularly distributed shock-absorbing balls provide stable vibration reduction, improving the stability of the camera body's movement and the image acquisition effect. Attached Figure Description

[0026] Figure 1 This is a perspective view of the present invention;

[0027] Figure 2 This is a rear-view perspective view of the present invention;

[0028] Figure 3 This is a side view of the present invention;

[0029] Figure 4 This is an enlarged view of point A in the present invention;

[0030] Figure 5 This is an enlarged view of section B of the present invention;

[0031] Figure 6 This is a bottom-view perspective view of the present invention;

[0032] Figure 7 This is a partial cross-sectional perspective view of the present invention;

[0033] Figure 8 This is an enlarged view of section C in the present invention;

[0034] Figure 9 This is a cross-sectional perspective view of the mounting base of the present invention;

[0035] Figure 10 For the present invention Figure 9 Top view.

[0036] In the diagram: 1. Camera body; 2. Camera lens; 3. Fill light; 4. Rotating base; 5. Moving cylinder; 6. Hollow cylinder; 7. Mounting base; 8. Electric push rod; 9. Miniature servo motor; 10. Winding roller; 11. Guide wheel; 12. Pull rope; 13. Connecting cylinder; 14. Center suction cup; 15. Sealing cylinder; 16. Miniature electric push rod; 17. Sealing piston; 18. Hose; 19. Flexible belt; 20. Flexible tube; 21. Plastic suction cup; 22. Socket; 23. Telescopic rod; 24. Threaded groove; 25. Track slide; 26. Limit seat; 27. Moving column; 28. Shock-absorbing ball; 29. ​​Adjusting nut; 30. Rotating connecting rod. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figures 1 to 2A portable video device for acquiring images of power grids mainly includes a camera body 1, a camera lens 2, a fill light 3, a rotating base 4, a moving cylinder 5, a hollow cylinder 6, a mounting base 7, an electric push rod 8, a winding assembly, a pull rope 12, a connecting cylinder 13, a central suction cup 14, an air extraction assembly, a flexible belt 19, a plastic suction cup 21, connectors, a socket 22, and a telescopic rod 23. Through reasonable structural design and connection methods, the device achieves stable installation, flexible adjustment, and efficient image acquisition functions.

[0039] The camera body 1 serves as the main body of the device, with a camera lens 2 at its front end for capturing images of the power grid equipment. Multiple supplementary lights 3 are evenly distributed around the camera lens 2 to provide auxiliary lighting for the camera in low-light environments, ensuring clear images.

[0040] A rotating base 4 is fixedly mounted on the rear surface of the camera body 1 by fastening screws. The rotating base 4 is made of high-strength alloy material, which has good wear resistance and rotational flexibility. The upper end of the rotating base 4 is rotatably connected to the movable cylinder 5 through a bearing, so that the movable cylinder 5 can rotate freely relative to the rotating base 4.

[0041] The movable cylinder 5 is a hollow cylindrical structure, with a hollow cylinder 6 slidingly and sealingly connected to its exterior. A sealing rubber ring is fitted on the upper end of the movable cylinder 5 to fit and seal against the inner wall of the hollow cylinder 6. This sealing rubber ring is made of high-quality rubber material, has good elasticity and sealing performance, and can effectively prevent dust and moisture from entering the gap between the movable cylinder 5 and the hollow cylinder 6, ensuring the normal operation of the equipment.

[0042] Please see Figures 3 to 5 The lower outer surface of the hollow cylinder 6 is provided with a threaded groove 24, and the outer surface of the moving cylinder 5 is provided with multiple annularly distributed track grooves 25. The track grooves 25 are semi-circular. The lower surface of the hollow cylinder 6 is fixed with a limiting seat 26 that is equal in number and corresponds one-to-one with the track grooves 25. The limiting seat 26 is located on the side of the track groove 25. The limiting seat 26 is slidably connected to the moving column 27. One end of the moving column 27 is fixed with a shock-absorbing ball 28 located in the track groove 25. The shock-absorbing ball 28 has the same diameter as the track groove 25. The threaded groove 24 is threaded with an adjusting nut 29. The outer circumference of the adjusting nut 29 is rotated with a rotating sleeve. The rotating sleeve is hinged to the moving column 27 with a rotating connecting rod 30. This structural design enables the shock-absorbing component to provide stable shock absorption during the movement of the moving cylinder 5 relative to the hollow cylinder 6, thereby improving the stability of the camera body 1.

[0043] The shock-absorbing ball 28 is made of silicone rubber, but other shock-absorbing materials can also be used, and it can be replaced according to the actual use.

[0044] A mounting base 7 is fixedly installed on the upper surface of the hollow cylinder 6. The mounting base 7 is made of aluminum alloy, which is lightweight and has high strength. An electric push rod 8 is fixedly installed on the front surface of the mounting base 7 by bolts. The electric push rod 8 uses a high-precision linear motor, which can accurately control the extension and retraction length of the push rod, thereby realizing the precise adjustment of the distance between the camera body 1 and the subject being filmed.

[0045] Please see Figures 6 to 10 The mounting base 7 is equipped with a winding assembly, which has a pull rope 12. The winding assembly winds and unwinds the pull rope 12, driving the moving cylinder 5 to move. The winding assembly includes a micro servo motor 9 fixed to the right side surface of the mounting base 7 by bolts and a pair of guide wheels 11 rotating between the left and right side walls of the inner cavity of the mounting base 7. The micro servo motor 9 is a high-performance servo motor with fast response speed and high control precision. The output end of the micro servo motor 9 is fixed with a winding roller 10 located inside the mounting base 7 and rotating with the inner wall of the mounting base 7. The outside of the winding roller 10 is wound and fixed to the pull rope 12. The pull rope 12 passes around the pair of guide wheels 11, and the other end of the pull rope 12 passes through the mounting base 7, the hollow cylinder 6 and the moving cylinder 5, and is connected to the bottom wall of the moving cylinder 5. By rotating the micro servo motor 9 in both directions, the pull rope 12 can be wound and unwound, thereby driving the moving cylinder 5 to move up and down inside the hollow cylinder 6, realizing the up and down movement of the camera lens 2 for video recording.

[0046] A connecting cylinder 13 is fixed to the lower front surface of the electric push rod 8. The other end of the connecting cylinder 13 is connected to a central suction cup 14. The central suction cup 14 is made of high-quality silicone material, which has good flexibility and adsorption performance. The upper surface of the central suction cup 14 is made of hard plastic. Multiple annular flexible strips 19 are fixed to the outer side of the upper surface of the central suction cup 14 at equal intervals. The flexible strips 19 are made of highly elastic rubber material and can adapt to the shape of the mounting surface. Multiple plastic suction cups 21 are fixed through the lower surface of the flexible strips 19. The plastic suction cups 21 are connected to the connecting cylinder 13 through a connector. The connector includes a flexible tube 20 fixed to the upper surface of the flexible strips 19 and connected to the plastic suction cups 21. The flexible tube 20 is a plastic hose and is connected to the connecting cylinder 13. Through this structural design, the central suction cup 14 and the plastic suction cups 21 can be tightly adsorbed on the mounting surface to achieve stable fixation of the equipment.

[0047] The mounting base 7 is equipped with an air extraction assembly that communicates with the connecting cylinder 13. The air extraction assembly includes a sealing cylinder 15 fixed to the upper surface of the mounting base 7. The sealing cylinder 15 is made of transparent plastic material, which makes it easy to observe the internal working conditions. A miniature electric push rod 16 is fixed to the upper surface of the sealing cylinder 15 by fastening screws. A sealing piston 17 is fixed to the push rod of the miniature electric push rod 16, which is located inside the sealing cylinder 15 and is sealed and fitted to the inner wall of the sealing cylinder 15. A flexible hose 18 is connected between the lower surface of the sealing cylinder 15 and the connecting cylinder 13. Through the extension and retraction of the miniature electric push rod 16, the sealing piston 17 is driven to move up and down inside the sealing cylinder 15, thereby realizing the air extraction and exhaust functions and controlling the adsorption and detachment of the central suction cup 14 and the plastic suction cup 21.

[0048] A pair of sockets 22 are fixed on the upper surface of the camera body 1. A telescopic rod 23, which is connected and fixed to the mounting base 7, is inserted into the sockets 22. The telescopic rod 23 is a metal rod with an adjustable length. Through the telescopic cooperation between the hollow cylinder 6 and the moving cylinder 5, a triangular distribution is formed to provide moving support for the camera body 1. This ensures that the camera body 1 avoids swaying when moving the camera under the action of telescopic movement of the three-point support, and improves the stability of the equipment.

[0049] The socket 22 is separated from the telescopic rod 23. The rotating moving cylinder 5 drives the camera body 1 to rotate, so that when the worker is wearing a safety helmet, the camera lens 2 rotates from facing the face to facing outward, so that when walking while wearing a safety helmet, the camera lens 2 can perform inspection and shooting.

[0050] The rear surface of the rotating base 4 is threaded with a fastening screw that contacts the outside of the moving cylinder 5. By rotating the fastening screw, the degree of pressure on the moving cylinder 5 can be adjusted, thereby fixing and adjusting the relative rotation between the rotating base 4 and the moving cylinder 5, allowing users to adjust the horizontal angle of the camera body 1 according to actual needs.

[0051] It should be added that: the telescopic distance of the telescopic rod 23 is the same as the combined telescopic distance of the moving cylinder 5 and the hollow cylinder 6, and the extension length of the hose 18 meets the moving length of the mounting base 7 to avoid the hose 18 being pulled off when the mounting base 7 moves.

[0052] System control expansion: This equipment is equipped with an intelligent control system. This system is based on a microcontroller and realizes automated control of various components. The microcontroller adopts a high-performance single-chip microcomputer, which has powerful data processing capabilities and rich interface resources.

[0053] Fill light 3 control: The microcontroller automatically adjusts the brightness of the fill light 3 based on the detection results of the ambient light sensor. When the ambient light is dim, the microcontroller increases the current of the fill light 3 to increase its brightness; when the ambient light is sufficient, the microcontroller decreases the current of the fill light 3 to reduce its brightness, so as to achieve the best shooting effect and save energy at the same time.

[0054] Image Acquisition and Processing: The image signal acquired by camera lens 2 is transmitted to the microcontroller. The microcontroller performs preliminary image processing, such as noise reduction and enhancement, and then sends the processed image data to external devices, such as mobile phones and computers, through the wireless communication module, so that users can view and analyze it in real time. At the same time, the microcontroller can also automatically identify and analyze the acquired images according to the image recognition algorithm, determine the operating status of the power grid equipment, and issue alarm information in a timely manner.

[0055] Usage steps and principles: When it is necessary to collect images on the secondary equipment installation cabinet, hold the device so that the central suction cup 14 and the plastic suction cup 21 located on the flexible belt 19 are attached to the middle of the upper surface of the secondary equipment installation cabinet, ensuring that the camera lens 2 is horizontally parallel and located directly in front of the secondary pressure plate, circuit breaker, handle and other equipment inside the cabinet.

[0056] When the air extraction assembly is activated, the microcontroller controls the micro electric push rod 16 to drive the sealing piston 17 to move upward and seal within the sealing cylinder 15. The air between the central suction cup 14 and the plastic suction cup 21 and the cabinet is extracted through the hose 18, connecting cylinder 13, and flexible tube 20, so that the central suction cup 14 and the plastic suction cup 21 are tightly adhered to the surface of the cabinet, thus completing the fixation of the entire device.

[0057] Camera adjustment: By operating the buttons or remote control on the device, the microcontroller controls the micro servo motor 9 to work according to the user's instructions, which drives the winding roller 10 to rotate. Under the guidance of the guide wheel 11 on the pull rope 12, the pull rope 12 is wound and unwound, so that the pull rope 12 drives the moving cylinder 5 to move inside the hollow cylinder 6, and synchronously drives the camera body 1 on the rotating seat 4 to move up and down, so as to realize the up and down movement of the camera lens 2 for camera recording.

[0058] At the same time, the microcontroller controls the electric push rod 8 to push the mounting base 7 and the camera body 1 to move synchronously, adjust the distance between the camera lens 2 and the secondary equipment inside the cabinet, realize vertical downward movement to shoot the array of secondary equipment inside the cabinet, eliminate the viewing angle deviation, improve the shooting range, and avoid the phenomenon of shooting omissions and image distortion.

[0059] The auxiliary support and shock absorption are achieved by the telescopic rod 23 set in the socket 22, which, together with the hollow cylinder 6 and the moving cylinder 5, forms a triangular distribution to provide moving support for the camera body 1 during the movement of the camera body 1. This ensures that the camera body 1 does not sway when moving under the action of the telescopic and vertical movement of the three-point support.

[0060] By rotating the adjusting nut 29, which is screwed in and out of the threaded groove 24, the rotating sleeve rotates with the adjusting nut 29, ensuring that the rotating connecting rod 30 does not rotate with it. While the adjusting nut 29 moves, it drives the rotating connecting rod 30 to rotate and pushes the moving column 27 to move within the limit seat 26. The adjusting damping ball 28 moves, so that the annularly distributed damping balls 28 fit into the track groove 25 on the moving column 27. This achieves stable damping during the movement of the moving column 27, improving the stability of the camera body 1 when moving and capturing images, as well as the image acquisition effect.

[0061] When the equipment needs to be disassembled and carried after the video capture is completed, the central suction cup 14 is attached to the top center of the safety helmet. Through the deformability of the flexible band 19, the flexible band 19 deforms and drives the plastic suction cup 21 to be evenly attached to the outer arc surface of the safety helmet.

[0062] Reactivating the air extraction assembly causes the microcontroller to control the miniature electric push rod 16, which pushes the sealing piston 17 downwards within the sealing cylinder 15, compressing the air and causing the central suction cup 14 and plastic suction cup 21 to detach from the safety helmet. This allows for quick disassembly of the equipment, facilitating workers to install and carry the entire device while wearing a safety helmet. The installation steps are repeated for subsequent use.

[0063] In summary, the portable video device for acquiring power grid images provided by this invention, through reasonable structural design and intelligent control system, achieves stable installation, flexible adjustment and efficient image acquisition functions, effectively solves the problems existing in the prior art, and has broad application prospects and market value.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable video device for acquiring images of power grids, comprising a camera body, a camera lens mounted on the camera body, and a plurality of supplementary lights, characterized in that: The camera body is provided with a rotating base on the rear side, a movable cylinder is rotated at the upper end of the rotating base, a hollow cylinder is slidably sealed on the outside of the movable cylinder, a mounting base is provided at the upper end of the hollow cylinder, and an electric push rod is provided at the front end of the mounting base. The mounting base is equipped with a winding assembly, which is equipped with a pull rope. The other end of the pull rope passes through the mounting base, the hollow cylinder, and the movable cylinder, and is connected to the bottom wall of the movable cylinder. The winding assembly winds up and unwinds the pull rope, thereby driving the movable cylinder to move. The lower front end of the electric push rod is provided with a connecting cylinder, and the other end of the connecting cylinder is connected to a central suction cup. The mounting base is provided with an air extraction component that is connected to the connecting cylinder. The upper outer part of the central suction cup has multiple annular flexible strips distributed at equal intervals around the center, and the lower end of the flexible strips has multiple plastic suction cups, which are connected to the connecting cylinder through connectors.

2. The portable video device for acquiring power grid images according to claim 1, characterized in that: The winding assembly includes a miniature servo motor located on the right side of the mounting base and a pair of guide wheels rotating between the left and right side walls of the inner cavity of the mounting base. The output end of the miniature servo motor is provided with a winding roller located inside the mounting base and rotating with the inner wall of the mounting base. The outside of the winding roller is connected to the pull rope, and the pull rope passes around the pair of guide wheels.

3. The portable video device for acquiring power grid images according to claim 1, characterized in that: The air extraction assembly includes a sealing cylinder located at the upper end of the mounting base. A miniature electric push rod is provided at the upper end of the sealing cylinder. A sealing piston is located inside the sealing cylinder and is sealed and fitted against the inner wall of the sealing cylinder at the push rod of the miniature electric push rod. A flexible hose is connected between the lower end of the sealing cylinder and the connecting cylinder.

4. The portable video device for acquiring images of power grids according to claim 1, characterized in that: The connector includes a flexible tube disposed at the upper end of the flexible strip and communicating with the plastic suction cup; The flexible tube is connected to the connecting cylinder.

5. A portable video device for acquiring images of power grids according to claim 1, characterized in that: The upper outer part of the movable cylinder is provided with a sealing rubber ring that fits and seals against the inner wall of the hollow cylinder.

6. The portable video device for acquiring images of power grids according to claim 1, characterized in that: The upper end of the camera body is provided with a pair of sockets, and a telescopic rod connected to the mounting base is inserted into the socket.

7. The portable video device for acquiring images of power grids according to claim 1, characterized in that: The rotating seat is externally threaded with a fastening screw that contacts the outside of the moving cylinder.

8. The portable video device for acquiring images of power grids according to claim 1, characterized in that: The lower end of the hollow cylinder is provided with a threaded groove, and the outer side of the movable cylinder is provided with multiple annularly distributed track grooves. The lower end of the hollow cylinder is provided with a limiting seat that corresponds to the number of track grooves and is located outside the track grooves. A movable column is slidably inserted through the limiting seat, and a shock-absorbing ball is provided at one end of the movable column inside the track groove. An adjusting nut is threaded into the groove, and a rotating sleeve rotates around the outer circumference of the adjusting nut. A rotating connecting rod is hinged between the rotating sleeve and the moving column.

9. A portable video device for acquiring images of power grids according to claim 8, characterized in that: The track groove is semi-circular, and its diameter is the same as that of the shock-absorbing ball.

Images