A protective device for operation and maintenance of electrical equipment in a power plant

Abstract

The present invention belongs to the technical field of electrical equipment maintenance, and specifically refers to a protective device for the operation and maintenance of electrical equipment in a power plant, including a cart, wherein a multi-directional adjuster is connected to one side of the top wall of the cart, a reel is fixedly connected to the other side of the top wall of the cart, the multi-directional adjuster is connected to an air box, the air box is connected to the reel, a guide plate is symmetrically and slidingly connected to one side of the air box, the other end of the guide plate is fixedly connected to a fixed box, and a cleaning pneumatic telescopic rod is symmetrically and fixedly connected to the top wall of the air box; the present application realizes the linkage of air pressurization and vacuum extraction, and the vacuum extraction drives the cleaning pneumatic telescopic rod to automatically remove dust or foreign matter, keep the clamping parts clean, and avoid the problem of severe heating caused by increased contact resistance. Air pressurization can be adaptively fixed according to the shape of the connection position of the electromechanical equipment to ensure close fit and expand the contact area, effectively avoid loosening, and ensure the circulation of current.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment maintenance, and in particular relates to a protective device for operation and maintenance of electrical equipment in a power plant. Background Art

[0002] With the rapid development of the power industry, the safe and stable operation of electrical equipment in power plants is of vital importance. Regular maintenance and inspection are required during operation to ensure its performance and reliability. During the maintenance of electrical equipment, it is necessary to discharge induced electricity to avoid harm to maintenance personnel.

[0003] However, when using existing discharge induction devices, due to the different shapes of the connection parts of different electrical equipment, traditional maintenance tools are difficult to adapt to various shapes, resulting in insufficient contact area and ineffective current flow. When connecting electrical equipment, impurities at the connection position hinder the flow of current, increasing contact resistance and causing serious heat generation.

[0004] Therefore, a protective device for operation and maintenance of electrical equipment in power plants is needed to solve the technical problems in the prior art of insufficient contact surface, ineffective current flow, and severe heating caused by increased contact resistance. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a protective device for the operation and maintenance of electrical equipment in power plants. The present application utilizes a multi-directional adjuster to precisely face the connection position of the electromechanical equipment to achieve the linkage between air pressurization and vacuum extraction. The vacuum extraction automatically removes dust or foreign matter, keeps the clamping parts clean, and prevents dirt from affecting conductivity, thereby solving the technical problem of severe heat generation caused by increased contact resistance in the prior art. Air pressurization can be adaptively fixed according to the shape of the connection position of the electromechanical equipment, ensuring a close fit and expanding the contact area, thereby solving the technical problem of insufficient contact surface and inability of current to flow effectively in the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: This solution proposes a protective device for the operation and maintenance of electrical equipment in a power plant, including a cart, a multi-directional adjuster is connected to one side of the top wall of the cart, and a reel is fixedly connected to the other side of the top wall of the cart, the multi-directional adjuster is connected to an air box, the air box is connected to the reel, a guide plate is symmetrically and slidingly connected to one side of the air box, the other end of the guide plate is fixedly connected to a fixed box, a cleaning pneumatic telescopic rod is symmetrically and fixedly connected to the top wall of the air box, the air box is hollow, the base end of the cleaning pneumatic telescopic rod is connected to the air box through an air pipe, the bottom wall of the air box is symmetrically and laterally slidably connected to a movable plate, and the side wall of the fixed box is connected to the movable plate through an air pipe.

[0007] Preferably, a partition plate is connected to the air box in a transverse sliding manner, and the partition plate divides the hollow part of the air box into a high-pressure chamber and a negative-pressure chamber. The side wall of the partition plate is fixedly connected to the guide plate, and the negative-pressure chamber is connected to the base end of the cleaning pneumatic telescopic rod through an air pipe. The side wall of the fixed box is connected to the high-pressure chamber through an air pipe. The side wall of the partition plate is fixedly connected to a compression spring, and the other end of the compression spring is fixedly connected to the inner wall of the air box.

[0008] Preferably, an exhaust hole is provided on one side of the bottom wall of the air box, and the exhaust hole is connected to the high-pressure chamber. The movable plate is provided below the exhaust hole, and an air inlet hole is provided on the movable plate. The side wall of the fixed box is connected to the air inlet hole through an air pipe, and the side wall of the movable plate is fixedly connected to a guide spring, and the other end of the guide spring is fixedly connected to the bottom wall of the air box.

[0009] Preferably, the fixed box is hollow, and the inner wall of one side of the fixed box is fixedly connected with multi-stage telescopic rods distributed in a rectangular array, the base end of the multi-stage telescopic rod is connected to the hollow part of the fixed box, and a fixed spring is fixedly connected to the multi-stage telescopic rod, and the other end of the fixed spring is fixedly connected to the inner wall of the other side of the fixed box.

[0010] Preferably, the output end of the cleaning pneumatic telescopic rod is fixedly connected to a cleaning plate, and the cleaning plate contacts the telescopic end of the multi-stage telescopic rod.

[0011] Preferably, the multi-directional adjuster includes an electric rotating seat, a longitudinal electric telescopic rod and a transverse electric telescopic rod. The electric rotating seat is rotatably connected to the top wall of the cart, the base end of the longitudinal electric telescopic rod is fixedly connected to the top wall of the electric rotating seat, the base end of the transverse electric telescopic rod is fixedly connected to the output end of the longitudinal electric telescopic rod, the output end of the transverse electric telescopic rod is fixedly connected to the side wall of the air box, a grounding wire is wound around the reel, and one end of the grounding wire is fixedly connected to the bottom wall of the air box.

[0012] The beneficial effects achieved by the present invention using the above structure are as follows:

[0013] 1. This application utilizes a multi-directional adjuster to precisely align with the connection location of the electromechanical equipment, achieving the linkage between air pressurization and vacuum extraction. The vacuum extraction drives the cleaning pneumatic telescopic rod to automatically remove dust or foreign matter, keeping the clamping parts clean and preventing dirt from affecting conductivity and causing increased contact resistance and severe heating. Air pressurization can adaptively fix according to the shape of the connection location of the electromechanical equipment, ensuring a close fit and expanding the contact area, effectively preventing loosening and ensuring the flow of current. It can also trigger cleaning and fixing in stages.

[0014] 2. When the fixed box contacts the electromechanical equipment, it drives the partition plate to move, changing the volume of the high-pressure chamber and the negative-pressure chamber, thus realizing the linkage between air pressurization and vacuum extraction;

[0015] 3. Vacuum extraction drives the cleaning pneumatic telescopic rod to drive the cleaning plate to clean the telescopic end of the multi-stage telescopic rod, remove dust or foreign matter, and keep the clamping parts clean. The cleaning pneumatic telescopic rod can also drive the moving plate to move when it is extended and retracted. The moving plate drives the air inlet and exhaust holes to connect, realizing the function of cleaning first and then fixing.

[0016] 4. High voltage drives the multi-stage telescopic rod to extend out of the fixed box. The rectangular multi-stage telescopic rod fits the shape of the connection position of the electromechanical equipment and can be adaptively fixed according to the shape of the connection position of the electromechanical equipment, ensuring a close fit and expanding the contact area, ensuring the flow of current and effectively preventing loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of a protective device for operation and maintenance of electrical equipment in a power plant proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the gas box connection structure of a protective device for operation and maintenance of electrical equipment in a power plant proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the internal connection structure of the gas box of a protective device for operation and maintenance of electrical equipment in a power plant proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the internal connection structure of the gas box of the protective device for operation and maintenance of electrical equipment in a power plant proposed by the present invention from another perspective;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of an air box of a protective device for operation and maintenance of electrical equipment in a power plant proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the gas box of a protective device for operation and maintenance of electrical equipment in a power plant proposed by the present invention from another perspective;

[0024] Figure 7 This is a schematic diagram of the internal connection structure of a fixed box of a protective device for operation and maintenance of electrical equipment in a power plant proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of the multi-stage telescopic rod connection structure of a protective device for operation and maintenance of electrical equipment in a power plant proposed by the present invention.

[0026] In the accompanying drawings: 1. Cart, 2. Multi-directional adjuster, 3. Winder, 4. Air box, 5. Guide plate, 6. Fixed box, 7. Cleaning pneumatic telescopic rod, 51. Cleaning plate, 21. Electric rotating seat, 22. Longitudinal electric telescopic rod, 23. Transverse electric telescopic rod, 401. Partition plate, 402. Compression spring, 403. High-pressure chamber, 404. Negative-pressure chamber, 405. Exhaust hole, 406. Moving plate, 407. Air inlet, 408. Guide spring, 601. Multi-stage telescopic rod, 602. Fixed spring.

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Example 1, as Figures 1-8 As shown, the present invention proposes a protective device for operation and maintenance of electrical equipment in a power plant, comprising a trolley 1, wherein a multidirectional adjuster 2 is connected to one side of the top wall of the trolley 1, a reel 3 is fixedly connected to the other side of the top wall of the trolley 1, the multidirectional adjuster 2 is connected to an air box 4, the air box 4 is connected to the reel 3, a guide plate 5 is symmetrically slidably connected to one side of the air box 4, the other end of the guide plate 5 is fixedly connected to a fixed box 6, a cleaning pneumatic telescopic rod 7 is symmetrically fixedly connected to the top wall of the air box 4, the cleaning pneumatic telescopic rod 7 is in an extended state in the initial stage, the air box 4 is hollow, the base end of the cleaning pneumatic telescopic rod 7 is connected to the air box 4 through an air pipe, the bottom wall of the air box 4 is symmetrically and laterally slidably connected to a movable plate 406, and the side wall of the fixed box 6 is connected to the movable plate 406 through an air pipe.

[0030] like Figures 1-6As shown, a partition plate 401 is connected to the air box 4 in a transverse sliding manner. The partition plate 401 divides the hollow part of the air box 4 into a high-pressure chamber 403 and a negative-pressure chamber 404. When the partition plate 401 is in the initial position, the volume of the high-pressure chamber 403 is larger than the volume of the negative-pressure chamber 404. The side wall of the partition plate 401 is fixedly connected to the guide plate 5. When the guide plate 5 drives the partition plate 401 to move in the air box 4, the volume of the high-pressure chamber 403 is reduced and the air in the high-pressure chamber 403 is pressurized. At the same time, the volume of the negative-pressure chamber 404 is reduced. The volume increases and the negative pressure chamber 404 is vacuumed. The high-pressure chamber 403 and the negative-pressure chamber 404 are respectively in high-pressure and negative-pressure states. The negative-pressure chamber 404 is connected to the base end of the cleaning pneumatic telescopic rod 7 through an air pipe. When the negative-pressure chamber 404 is in a negative-pressure state, the cleaning pneumatic telescopic rod 7 is started, and the side wall of the fixed box 6 is connected to the high-pressure chamber 403 through the air pipe. The side wall of the partition plate 401 is fixedly connected to a compression spring 402, and the other end of the compression spring 402 is fixedly connected to the inner wall of the air box 4.

[0031] like Figures 1-6 As shown, an exhaust hole 405 is provided on one side of the bottom wall of the air box 4, and the exhaust hole 405 is connected to the high-pressure chamber 403. A movable plate 406 is provided below the exhaust hole 405, and an air inlet hole 407 is provided on the movable plate 406. When the movable plate 406 is in the initial state, the exhaust hole 405 and the air inlet hole 407 are eccentrically arranged, and the side wall of the fixed box 6 is connected to the air inlet hole 407 through an air pipe. When the exhaust hole 405 and the air inlet hole 407 are coaxially arranged, the high-pressure air in the high-pressure chamber 403 enters the fixed box 6 through the exhaust hole 405 and the air inlet hole 407. The side wall of the movable plate 406 is fixedly connected to a guide spring 408, and the other end of the guide spring 408 is fixedly connected to the bottom wall of the air box 4.

[0032] like Figure 1-Figure 2 and Figure 7-Figure 8 As shown, the fixed box 6 is hollow, and the inner wall of one side of the fixed box 6 is distributed in a rectangular array and fixedly connected to a multi-stage telescopic rod 601. The base end of the multi-stage telescopic rod 601 is connected to the hollow part of the fixed box 6. A fixing spring 602 is fixedly connected to the multi-stage telescopic rod 601, and the other end of the fixing spring 602 is fixedly connected to the inner wall of the other side of the fixed box 6. When high-pressure air enters the fixed box 6, the high-pressure air pushes the multi-stage telescopic rod 601 out of the fixed box 6. When the multi-stage telescopic rod 601 contacts the connection position of the electromechanical equipment, the multi-stage telescopic rod 601 stops moving. The multi-stage telescopic rod 601 arranged in a rectangular shape is clamped on the connection position of the electromechanical equipment, and at the same time fits the shape of the connection position of the electromechanical equipment, thereby preventing loosening while expanding the contact area and the contact surface, thereby avoiding the problem of current not being able to flow effectively.

[0033] like Figures 1-6As shown, the output end of the cleaning pneumatic telescopic rod 7 is fixedly connected to a cleaning plate 51, and the movable plate 406 is located on the movement path of the cleaning plate 51. The cleaning plate 51 contacts the telescopic end of the multi-stage telescopic rod 601. When the cleaning pneumatic telescopic rod 7 is in the initial state, the cleaning plate 51 contacts the telescopic end of the multi-stage telescopic rod 601. When the cleaning pneumatic telescopic rod 7 moves, the cleaning plate 51 cleans the telescopic end of the multi-stage telescopic rod 601 to avoid impurities hindering the flow of current, resulting in increased contact resistance and severe heat generation. When the cleaning pneumatic telescopic rod 7 drives the cleaning plate 51 to move, the cleaning plate 51 contacts the movable plate 406, driving the air inlet 407 on the movable plate 406 to be coaxially arranged with the exhaust hole 405.

[0034] like Figure 1 As shown, the multi-directional adjuster 2 includes an electric rotating seat 21, a longitudinal electric telescopic rod 22 and a transverse electric telescopic rod 23. The electric rotating seat 21 is rotatably connected to the top wall of the cart 1, the base end of the longitudinal electric telescopic rod 22 is fixedly connected to the top wall of the electric rotating seat 21, the base end of the transverse electric telescopic rod 23 is fixedly connected to the output end of the longitudinal electric telescopic rod 22, and the output end of the transverse electric telescopic rod 23 is fixedly connected to the side wall of the air box 4. A grounding wire is wound around the reel 3, one end of the grounding wire is fixedly connected to the bottom wall of the air box 4, and the grounding wire is electrically connected to the air box 4, the partition plate 401, the guide plate 5, the fixed box 6 and the multi-stage telescopic rod 601.

[0035] The other end of the grounding wire is grounded, and the trolley 1 is pushed to the position of the electromechanical equipment that needs maintenance. The electric rotating seat 21 is started, and the electric rotating seat 21 drives the longitudinal electric telescopic rod 22, the transverse electric telescopic rod 23 and the air box 4 to rotate, and drives the fixed box 6 toward the electromechanical equipment connection position. The electromechanical equipment connection position is a hinge-ear structure. Then the longitudinal electric telescopic rod 22 is started, and the longitudinal electric telescopic rod 22 drives the transverse electric telescopic rod 23 and the air box 4 close to the electromechanical equipment connection position. When it is adjusted to a suitable position, the longitudinal electric telescopic rod 22 stops, and then the transverse electric telescopic rod 23 is started, and the transverse electric telescopic rod 23 drives the air box 4, the guide plate 5 and the fixed box 6 close to the electromechanical equipment connection position. The fixed boxes 6 on both sides are arranged on both sides of the electromechanical equipment connection position.

[0036] As the horizontal electric telescopic rod 23 drives the fixed box 6 to contact the electromechanical equipment, the air box 4 approaches the electromechanical equipment, the air box 4 moves on the partition plate 401, the compression spring 402 is compressed, the volume of the high-pressure chamber 403 gradually shrinks and the air in the high-pressure chamber 403 is pressurized, while the volume of the negative-pressure chamber 404 gradually increases and the negative-pressure chamber 404 is vacuumed. The high-pressure chamber 403 and the negative-pressure chamber 404 are respectively in high-pressure and negative-pressure states, the air in the cleaning pneumatic telescopic rod 7 enters the negative-pressure chamber 404, and the cleaning pneumatic telescopic rod 7 drives the cleaning plate 51 moves, the cleaning plate 51 moves on the telescopic end of the multi-stage telescopic rod 601 and cleans impurities on the telescopic end of the multi-stage telescopic rod 601. When the cleaning pneumatic telescopic rod 7 drives the cleaning plate 51 to move, the cleaning plate 51 contacts the movable plate 406, compressing the guide spring 408. When the air inlet 407 on the movable plate 406 is coaxially arranged with the exhaust hole 405 on the air box 4, and the cleaning pneumatic telescopic rod 7 is retracted to the limit position, the high-pressure air in the high-pressure chamber 403 enters the fixed box 6 through the exhaust hole 405 and the air inlet 407;

[0037] When high-pressure air enters the fixed box 6, the high-pressure air pushes the multi-stage telescopic rod 601 out of the fixed box 6, stretching the fixed spring 602. When the multi-stage telescopic rod 601 contacts the connection position of the electromechanical equipment, the multi-stage telescopic rod 601 stops. The rectangular multi-stage telescopic rod 601 clamps on the connection position of the electromechanical equipment, while fitting the shape of the connection position of the electromechanical equipment to prevent loosening while expanding the contact area. The induced electricity on the electromechanical equipment flows to the ground wire through the multi-stage telescopic rod 601, the fixed box 6, the guide plate 5, the partition plate 401 and the air box 4, and is discharged through the ground wire, preventing the induced electricity from causing damage to equipment and personnel.

[0038] When it needs to be removed, the horizontal electric telescopic rod 23 is reset, driving the fixed box 6 away from the connection position of the electromechanical equipment, the compression spring 402 is reset, and the compression spring 402 drives the partition plate 401 to reset, and the volume of the high-pressure chamber 403 gradually increases and the air in the high-pressure chamber 403 is decompressed. At the same time, the volume of the negative-pressure chamber 404 gradually decreases and pressurizes the negative-pressure chamber 404. The high-pressure chamber 403 draws back the high-pressure air in the fixed box 6, and then the fixed spring 602 is reset, driving the multi-stage telescopic rod 601 to reset and stop contacting the connection position of the electromechanical equipment. At the same time, the negative-pressure chamber 404 injects air into the cleaning pneumatic telescopic rod 7, and then the cleaning pneumatic telescopic rod 7 is reset. The cleaning pneumatic telescopic rod 7 drives the cleaning plate 51 to reset, and the cleaning plate 51 contacts the telescopic end of the multi-stage telescopic rod 601 and cleans the telescopic end of the multi-stage telescopic rod 601.

[0039] The above description of the present invention and its embodiments is non-limiting. The accompanying drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design of a structure and embodiment similar to the technical solution, they shall fall within the scope of protection of the present invention.

Claims

1. A protective device for operation and maintenance of electrical equipment in a power plant, comprising a cart (1), wherein a multi-directional adjuster (2) is connected to one side of the top wall of the cart (1), and characterized in that: The other side of the top wall of the cart (1) is fixedly connected to a reel (3), the multi-directional adjuster (2) is connected to an air box (4), one side of the air box (4) is symmetrically slidably connected to a guide plate (5), the other end of the guide plate (5) is fixedly connected to a fixed box (6), the top wall of the air box (4) is symmetrically fixedly connected to a cleaning pneumatic telescopic rod (7), the air box (4) is hollow, the base end of the cleaning pneumatic telescopic rod (7) is connected to the air box (4) through an air pipe, the bottom wall of the air box (4) is symmetrically slidably connected to a movable plate (406), and the side wall of the fixed box (6) is connected to the movable plate (406) through an air pipe; A partition plate (401) is laterally slidably connected inside the air box (4), and a side wall of the partition plate (401) is fixedly connected to the guide plate (5); The partition plate (401) divides the hollow portion of the air box (4) into a high-pressure chamber (403) and a negative-pressure chamber (404), and the negative-pressure chamber (404) is connected to the base end of the cleaning pneumatic telescopic rod (7) through an air pipe; An exhaust hole (405) is provided on one side of the bottom wall of the air box (4), the exhaust hole (405) is communicated with the high-pressure chamber (403), an air inlet hole (407) is provided on the movable plate (406), and the side wall of the fixed box (6) is communicated with the air inlet hole (407) through an air pipe; The fixed box (6) is hollow, and the inner wall of one side of the fixed box (6) is distributed in a rectangular array and fixedly connected to a multi-stage telescopic rod (601), and the base end of the multi-stage telescopic rod (601) is connected to the hollow part of the fixed box (6); The output end of the cleaning pneumatic telescopic rod (7) is fixedly connected to a cleaning plate (51), the movable plate (406) is located on the movement path of the cleaning plate (51), and the cleaning plate (51) contacts the telescopic end of the multi-stage telescopic rod (601).

Images