Maintenance and disassembly device for mid-set medium-voltage switch cabinet

Abstract

The utility model relates to the technical field of power failure maintenance work of middle-mounted switch cabinets in industrial and mining enterprises, in particular to a maintenance and disassembly device of a middle-mounted medium-voltage switch cabinet, which comprises a transverse pipe, a longitudinal pipe, a rotating assembly, a telescopic assembly, a clamping assembly and a hexagon wrench socket head, the rotating assembly is arranged on the outer side of the transverse pipe, the telescopic assembly is arranged in the transverse pipe, the clamping assembly is arranged at the bottom of the longitudinal pipe, and the hexagon wrench socket head is fixedly arranged on the clamping assembly. By arranging the rotating assembly and the telescopic assembly, extension and shortening of the telescopic rod are achieved, meanwhile, the telescopic rod can be fixed, a user adjusts the length of the telescopic rod according to actual requirements, the labor-saving purpose is achieved, the working intensity of workers is reduced, meanwhile, by arranging the clamping assembly, hexagon wrench socket heads of different specifications are clamped, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of power outage maintenance of medium-voltage switchgear in industrial and mining enterprises, and in particular to a maintenance and disassembly device for medium-voltage switchgear. Background Technology

[0002] Currently, manufacturers use M6-M18 high-strength bolts to assemble the moving contacts (connecting arms) of 12kV vacuum circuit breakers in medium-voltage switchgear. When the equipment is shut down for maintenance, the assembly bolts need to be removed before maintenance can proceed, and then reassembled after maintenance. However, because the installation position of the assembly bolts is relatively deep, conventional hex wrenches are difficult to disassemble and install, requiring manual modification of various sizes of hex wrenches, resulting in low work efficiency. In addition, the modified hex wrenches do not have labor-saving devices, making disassembly and installation extremely difficult for workers and increasing their labor intensity. Utility Model Content

[0003] This utility model provides a maintenance and disassembly device for a medium-voltage switchgear, in order to solve the technical problems mentioned in the background art.

[0004] This utility model provides a maintenance and disassembly device for a medium-voltage switchgear, comprising a horizontal tube, a vertical tube, a rotating assembly, a telescopic assembly, a clamping assembly, and a hexagonal wrench end. The vertical tube is fixedly welded to the bottom of the horizontal tube, the rotating assembly is disposed on the outside of the horizontal tube, the telescopic assembly is disposed inside the horizontal tube, the clamping assembly is disposed at the bottom of the vertical tube, and the hexagonal wrench end is fixedly disposed on the clamping assembly.

[0005] Optionally, the rotating assembly includes: an eccentric wheel, a rotating handle, a first rotating shaft, and a fixing block. The fixing block is disposed on the outside of the transverse tube, the first rotating shaft is fixed above the fixing block, the eccentric wheel is disposed on the first rotating shaft, and the rotating handle is disposed on the eccentric wheel.

[0006] Optionally, the telescopic assembly includes: a telescopic rod, a pressure block, a pressure plate, and a spring. The pressure plate is fixedly disposed on the inner wall of the transverse tube. The telescopic rod is disposed below the pressure plate. The pressure block is disposed at the center of the pressure plate and below the eccentric wheel. One end of the spring is connected to the pressure block, and the other end of the spring is connected to the inner wall of the transverse tube.

[0007] Optionally, the top of the telescopic rod is provided with a first limiting groove, and the bottom of the pressure block is provided with a second limiting groove.

[0008] Optionally, the clamping assembly includes: a clamping cylinder, a moving block, a first connecting shaft, a second connecting shaft, a clamping rod, a fixed plate, a second rotating shaft, and a clamping cylinder switch. The fixed plate is fixedly disposed on the inner wall of the longitudinal tube. The clamping cylinder is disposed on the fixed plate. The moving block is connected to the output end of the clamping cylinder. One end of the first connecting shaft is connected to the moving block. The other end of the first connecting shaft is connected to one end of the second connecting shaft. The clamping rod is disposed on the other end of the second connecting shaft. The second rotating shaft is fixedly disposed on the fixed plate. The middle part of the second connecting shaft is rotatably connected to the second rotating shaft. There are two of each of the first connecting shaft, the second connecting shaft, the clamping rod, and the second rotating shaft. The clamping cylinder switch is disposed on the outer wall of the longitudinal tube.

[0009] Optionally, the surface of the clamping rod is provided with threaded protrusions.

[0010] The transverse tube, the longitudinal tube, the rotating assembly, the telescopic assembly, and the clamping assembly are all insulated. Beneficial effects

[0011] The maintenance and disassembly of this type of medium-voltage switchgear includes a horizontal tube, a vertical tube, a rotating assembly, a telescopic assembly, a clamping assembly, and a hexagonal wrench end. The vertical tube is fixedly welded to the bottom of the horizontal tube. The rotating assembly is located on the outside of the horizontal tube, the telescopic assembly is located inside the horizontal tube, the clamping assembly is located at the bottom of the vertical tube, and the hexagonal wrench end is fixedly mounted on the clamping assembly. By setting up the rotating assembly and the telescopic assembly, the extension and retraction of the telescopic rod can be achieved, and the telescopic rod can also be fixed. Users can adjust the length of the telescopic rod according to actual needs to achieve the purpose of saving effort and reducing the labor intensity of workers. At the same time, by setting up the clamping assembly, different specifications of hexagonal wrench end heads can be clamped without the need to modify different specifications of hexagonal wrenches, thus improving work efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a first-view structural schematic diagram of a maintenance and disassembly device for a medium-voltage switchgear provided by this utility model;

[0014] Figure 2This is a second-view structural schematic diagram of a maintenance and disassembly device for a centrally located medium-voltage switchgear provided by this utility model;

[0015] Figure 3 This is a side view structural diagram of the horizontal tube in the maintenance and disassembly device for a medium-voltage switchgear provided by this utility model.

[0016] Figure 4 This is a schematic diagram of the longitudinal tube in the maintenance and disassembly device for a medium-voltage switchgear provided by this utility model, viewed from below.

[0017] Figure 5 This is a schematic diagram of the clamping component in a maintenance and disassembly device for a medium-voltage switchgear provided by this utility model.

[0018] Figure label:

[0019] 100. Horizontal pipe; 110. Longitudinal pipe; 120. Hexagonal wrench end;

[0020] 200. Rotating assembly; 210. Eccentric wheel; 220. Rotating handle; 230. First rotating shaft; 240. Fixing block;

[0021] 300, Telescopic assembly; 310, Telescopic rod; 311, First limiting groove; 320, Pressure block; 321, Second limiting groove; 330, Pressure plate; 340, Spring;

[0022] 400 Clamping assembly; 410 Clamping cylinder; 420 Moving block; 430 First connecting shaft; 440 Second connecting shaft; 450 Clamping rod; 451 Threaded protrusion; 460 Fixing plate; 470 Second rotating shaft; 480 Clamping cylinder switch. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to the present utility model are shown in the drawings, not all of the structures. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] Please see Figures 1 to 5 The present invention discloses a maintenance and disassembly device for a medium-voltage switchgear, comprising a horizontal tube 100, a vertical tube 110, a rotating assembly 200, a telescopic assembly 300, a clamping assembly 400, and a hexagonal wrench end 120. The vertical tube 110 is fixedly welded to the lower part of the horizontal tube 100. The rotating assembly 200 is disposed on the outside of the horizontal tube 100. The telescopic assembly 300 is disposed inside the horizontal tube 100. The clamping assembly 400 is disposed at the bottom of the vertical tube 110. The hexagonal wrench end 120 is fixedly disposed on the clamping assembly 400.

[0026] Furthermore, when a user needs to disassemble and install the assembly bolts on a medium-voltage switchgear using the maintenance and disassembly device of this utility model, the user first determines the corresponding size of the hexagonal wrench end cap 120 according to the specifications of the bolt to be disassembled. Then, the user clamps the hexagonal wrench end cap 120 using the clamping assembly 400. Next, the user inserts the longitudinal tube 110 into the position of the bolt to be disassembled and screws the hexagonal wrench end cap 120 onto the bolt head. Then, the user adjusts the length of the telescopic rod 310 using the telescopic assembly 300 and fixes the telescopic rod 310 using the rotating assembly 200. The user can rotate the telescopic rod 310 to drive the transverse tube 100 to rotate, which in turn drives the longitudinal tube 110 to rotate, and the longitudinal tube 110 drives the hexagonal wrench end cap 120 to rotate, thus removing the assembly bolt. By setting the telescopic rod 310, the lever arm length is increased, which helps the user save effort during the disassembly process and reduces the workload.

[0027] In this embodiment, the rotating assembly 200 includes: an eccentric rotating wheel 210, a rotating handle 220, a first rotating shaft 230, and a fixing block 240. The fixing block 240 is disposed on the outside of the transverse tube 100, the rotating shaft 230 is fixed above the fixing block 240, the eccentric rotating wheel 210 is disposed on the first rotating shaft 230, and the rotating handle 220 is disposed on the eccentric rotating wheel 210. The telescopic assembly 300 includes: a telescopic rod 310, a pressure block 320, a pressure plate 330, and a spring 340. The pressure plate 330 is fixedly installed on the inner wall of the transverse tube 100. The telescopic rod 310 is installed below the pressure plate 330. The pressure block 320 is installed at the center of the pressure plate 330 and below the eccentric wheel 210. One end of the spring 340 is connected to the pressure block 320, and the other end of the spring 340 is connected to the inner wall of the transverse tube 100. The top of the telescopic rod 310 is provided with a first limiting groove 311, and the bottom of the pressure block 320 is provided with a second limiting groove 321.

[0028] In the locked state, the eccentric wheel 210 presses down the pressure block 320, the spring 340 is in an extended state, and the first limiting groove 311 and the second limiting groove 321 are engaged, preventing the telescopic rod 310 from moving. When the user needs to use the telescopic rod 310 to save effort, they can rotate the eccentric wheel 210 using the rotating handle 220. As the eccentric wheel 210 rotates, the spring 340 contracts due to the lack of downward pressure from the eccentric wheel 210, causing the pressure block 320 to move upward. The first limiting groove 311 also moves upward, and the first limiting groove 311 and the second limiting groove 321 can no longer engage to limit movement, allowing the telescopic rod 310 to move. The user can then pull the telescopic rod 310 to the desired position and then rotate the rotating handle 220 in the opposite direction to return to the locked state. In addition, the pressure plate 330 ensures that the pressure block 320 moves vertically, preventing the pressure block 320 from tilting and affecting the locking effect.

[0029] In this embodiment, the clamping assembly 400 includes: a clamping cylinder 410, a moving block 420, a first connecting shaft 430, a second connecting shaft 440, a clamping rod 450, a fixing plate 460, a second rotating shaft 470, and a clamping cylinder switch 480. The fixing plate 460 is fixedly disposed on the inner wall of the longitudinal tube 110. The clamping cylinder 410 is disposed on the fixing plate 460. The moving block 420 is connected to the output end of the clamping cylinder 410. One end of the first connecting shaft 430 is connected to the moving block 420, and the other end of the first connecting shaft 430 is connected to the second rotating shaft 470. One end of the connecting shaft 440 is connected, and the clamping rod 450 is disposed on the other end of the second connecting shaft 440. The second rotating shaft 470 is fixedly disposed on the fixing plate 460. The middle part of the second connecting shaft 440 is rotatably connected to the rotating shaft 230 of the second rotating shaft 470. There are two of each of the first connecting shaft 430, the second connecting shaft 440, the clamping rod 450, and the rotating shaft 230 of the second rotating shaft 470. The clamping cylinder switch 480 is disposed on the outer wall of the longitudinal tube 110. The surface of the clamping rod 450 is provided with threaded protrusions 451.

[0030] When a user needs to install the hex wrench end cap 120, first, select the corresponding hex wrench end cap 120 according to the specifications of the bolts being disassembled. Then, press the clamping cylinder switch 480 to activate the clamping cylinder 410. The clamping cylinder 410 pushes the moving block 420 to move, which in turn drives the first connecting shaft 430 to move. The first connecting shaft 430 then drives the second connecting shaft 440 to move. Since the middle of the second connecting shaft 440 is rotatably connected to the second rotating shaft 470 rotating shaft 230, the second connecting shaft 440 will rotate along the second rotating shaft 470 rotating shaft 230. The distance between the two second connecting shafts 440 will change during the rotation, that is, the distance between the two clamping rods 450 will change. When the distance between the two clamping rods 450 changes to match the specifications of the hex wrench end cap 120, the clamping function can be achieved. In addition, the threaded protrusion 451 increases friction and increases the clamping force.

[0031] It is worth noting that the hexagonal wrench end 120 in the above embodiment is a conventional hexagonal wrench end 120, and its working principle will not be described in detail here.

[0032] In this embodiment, the transverse tube 100, the longitudinal tube 110, the rotating assembly 200, the telescopic assembly 300, and the clamping assembly 400 are all insulated.

[0033] Among these measures, insulation treatment can prevent the maintenance of high-voltage switches while they are energized, thus reducing the possibility of accidents.

[0034] This maintenance and disassembly device for a medium-voltage switchgear includes a horizontal tube 100, a vertical tube 110, a rotating assembly 200, a telescopic assembly 300, a clamping assembly 400, and a hexagonal wrench end 120. The vertical tube 110 is fixedly welded to the bottom of the horizontal tube 100. The rotating assembly 200 is located on the outside of the horizontal tube 100. The telescopic assembly 300 is located inside the horizontal tube 100. The clamping assembly 400 is located at the bottom of the vertical tube 110. The hexagonal wrench end 120 is fixedly mounted on the clamping assembly 400. By setting the rotating assembly 200 and the telescopic assembly 300, the extension and retraction of the telescopic rod 310 can be achieved, and the telescopic rod 310 can also be fixed. Users can adjust the length of the telescopic rod 310 according to actual needs to achieve the purpose of saving effort and reducing the labor intensity of workers. At the same time, by setting the clamping assembly 400, different specifications of hexagonal wrench end 120 can be clamped without the need to modify different specifications of hexagonal wrenches, thus improving work efficiency.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A maintenance and disassembly device for a medium-voltage switchgear, characterized in that, include: Horizontal pipe; A longitudinal tube, which is fixedly welded to the bottom of the transverse tube; A rotating assembly, the rotating assembly being disposed on the outside of the transverse tube; A telescopic assembly, wherein the telescopic assembly is disposed inside the transverse tube; A clamping assembly disposed at the bottom of the longitudinal tube; A hexagonal wrench end, which is fixedly mounted on the clamping assembly.

2. The maintenance and disassembly device for a medium-voltage switchgear according to claim 1, characterized in that, The rotating assembly includes: an eccentric wheel, a rotating handle, a first rotating shaft, and a fixing block. The fixing block is disposed on the outside of the transverse tube, the first rotating shaft is fixed above the fixing block, the eccentric wheel is disposed on the first rotating shaft, and the rotating handle is disposed on the eccentric wheel.

3. The maintenance and disassembly device for a medium-voltage switchgear according to claim 2, characterized in that, The telescopic assembly includes: a telescopic rod, a pressure block, a pressure plate, and a spring. The pressure plate is fixedly installed on the inner wall of the transverse tube. The telescopic rod is installed below the pressure plate. The pressure block is installed at the center of the pressure plate and below the eccentric wheel. One end of the spring is connected to the pressure block, and the other end of the spring is connected to the inner wall of the transverse tube.

4. The maintenance and disassembly device for a medium-voltage switchgear according to claim 3, characterized in that, The top of the telescopic rod is provided with a first limiting groove, and the bottom of the pressure block is provided with a second limiting groove.

5. The maintenance and disassembly device for a medium-voltage switchgear according to claim 1, characterized in that, The clamping assembly includes: a clamping cylinder, a moving block, a first connecting shaft, a second connecting shaft, a clamping rod, a fixed plate, a second rotating shaft, and a clamping cylinder switch. The fixed plate is fixedly disposed on the inner wall of the longitudinal tube. The clamping cylinder is disposed on the fixed plate. The moving block is connected to the output end of the clamping cylinder. One end of the first connecting shaft is connected to the moving block, and the other end of the first connecting shaft is connected to one end of the second connecting shaft. The clamping rod is disposed on the other end of the second connecting shaft. The second rotating shaft is fixedly disposed on the inner wall of the fixed plate. The middle part of the second connecting shaft is rotatably connected to the second rotating shaft. There are two of each of the first connecting shaft, the second connecting shaft, the clamping rod, and the second rotating shaft. The clamping cylinder switch is disposed on the outer wall of the longitudinal tube.

6. The maintenance and disassembly device for a medium-voltage switchgear according to claim 5, characterized in that, The surface of the clamping rod is provided with threaded protrusions.

7. The maintenance and disassembly device for a medium-voltage switchgear according to claim 1, characterized in that, The transverse tube, the longitudinal tube, the rotating assembly, the telescopic assembly, and the clamping assembly are all insulated.

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