Large-scale power grid circuit breaker maintenance device and method of use thereof

Abstract

The application provides a circuit breaker maintenance device for large-scale power grid and a use method thereof, and relates to the field of power equipment maintenance. The device comprises a movable base and a pair of support frames arranged on the top of the base. The top of each support frame is provided with a bearing seat, a support shaft is arranged in the bearing seat, and an installation plate is arranged on the end of the support shaft away from the bearing seat. A pair of installation plates are used to fix the circuit breaker. The top of any support frame is also provided with a driving mechanism, which is used to drive the corresponding support shaft to rotate. The height of the support frame is greater than the height of the circuit breaker, and a receiving disc is arranged on the top of the base and below the circuit breaker. The application has the characteristics of being able to quickly and accurately maintain the circuit breaker.

Description

Technical Field

[0001] This application relates to the field of power equipment maintenance, and in particular to equipment for the maintenance of circuit breakers for large-scale power grids and methods of using them. Background Technology

[0002] Pole-mounted circuit breakers are important equipment in 10kV power grid lines. Their operation is crucial to the safe and stable operation of the power grid. Pole-mounted circuit breakers can interrupt rated current and automatically trip through protection devices in the event of a fault, thereby isolating the fault point and minimizing power outages and reducing power grid losses.

[0003] Chinese patent document CN218770886U discloses a circuit breaker maintenance vehicle, specifically the vehicle body. The vehicle body has a first support plate and a second support plate, with a fixing plate movably mounted on the two support plates for securing a circuit breaker gripping robot. The vehicle body also has a connecting plate and a lifting mechanism erected on the connecting plate, the upper end of which is connected to the corresponding support plate. The circuit breaker gripping robot has a width adjustment mechanism, and the vehicle body also has a telescopic mechanism connected to the two support plates. This utility model, with its circuit breaker gripping robot, telescopic mechanism, lifting mechanism, and width adjustment mechanism, facilitates the movement of the gripping robot in the forward and backward directions to grasp the circuit breaker, while also facilitating the release of the locking connection of the circuit breaker at its fixed position in the left and right directions, and allowing it to be easily pulled onto the vehicle body for maintenance. This convenient operation significantly reduces labor intensity.

[0004] However, the above-mentioned utility model can only realize the grabbing operation of the circuit breaker. After the circuit breaker is grabbed, it still needs to be transferred to the vehicle body before it can be inspected and repaired. The operation process is too long and it is difficult to realize the rapid inspection and repair of the circuit breaker. Summary of the Invention

[0005] To address the problem of the inability to quickly inspect and repair circuit breakers, this application provides equipment for the maintenance of circuit breakers in large-scale power grids and methods for using them.

[0006] In a first aspect, this application provides a large-scale power grid circuit breaker maintenance device, which adopts the following technical solution:

[0007] A large-scale power grid circuit breaker maintenance device includes a movable base and a pair of support frames on top of the base. Each support frame has a bearing seat on top, a support shaft passes through the bearing seat, and a mounting plate is provided at the end of the support shaft away from the bearing seat. The pair of mounting plates are used to fix the circuit breaker.

[0008] The top of any of the support frames is further provided with a drive mechanism, which is used to drive the corresponding support shaft to rotate;

[0009] The height of the support frame is greater than the height of the circuit breaker, and a receiving tray is provided on the top of the base and below the circuit breaker.

[0010] By adopting the above technical solution, the movable base allows the equipment to be flexibly moved to the circuit breaker that needs maintenance. The bearing seat and support shaft at the top of the support frame cooperate, the mounting plate can fix the circuit breaker in place, and the drive mechanism can drive the support shaft to rotate, thereby causing the circuit breaker to rotate so that it can be maintained from different angles. The height of the support frame is greater than the height of the circuit breaker, and a receiving tray is set at the top of the base below the circuit breaker to receive parts or debris that fall during maintenance.

[0011] Optionally, the mounting plate is L-shaped, the vertical end of the mounting plate is connected to the support shaft, and the horizontal end of the mounting plate is provided with a waist hole that extends along the length direction of the circuit breaker.

[0012] The circuit breaker has a mounting base on both sides of its bottom. The two mounting bases are placed on the horizontal ends of the two mounting plates respectively and in a one-to-one correspondence. The mounting holes on the mounting bases are aligned with the waist holes. Bolts are inserted into the mounting holes and the waist holes. The bolts are used to lock the mounting bases and mounting plates.

[0013] By adopting the above technical solution, the movable base facilitates the movement of the equipment to the maintenance position, the support frame supports the mounting plate to fix the circuit breaker, and the L-shaped mounting plate with the waist hole can adjust the bolt installation position according to the actual size of the circuit breaker to better fix different models of circuit breakers. The mounting base and the mounting plate are locked together by bolts, so that the circuit breaker is stably installed on the equipment, which facilitates subsequent maintenance operations.

[0014] Optionally, one end of the support shaft is adapted to be inserted into the bearing housing, and the other end of the support shaft extends toward the circuit breaker;

[0015] The other end face of the support shaft not connected to the drive mechanism is provided with a slot, and the top of the support shaft is provided with a sliding groove, which communicates with the slot and both extend along the axial direction of the support shaft;

[0016] A locking rod is fitted into the slot, with one end of the locking rod located in the slot and the other end passing through the vertical end of the mounting plate and fitting against the outer wall of the circuit breaker. A sliding rod is provided at the top of the locking rod, which passes through the slide groove and extends above the support shaft. An adjusting nut is screwed onto the outer wall of the support shaft, which can push the sliding rod to slide within the slide groove.

[0017] By adopting the above technical solution, the support shaft is fitted into the bearing housing to ensure rotational stability. Extending towards the circuit breaker facilitates connection with the mounting plate, ensuring that the mounting plate can reliably fix the circuit breaker. The slot and slide groove facilitate the placement of the locking rod and slide rod. The locking rod passes through the mounting plate and fits against the outer wall of the circuit breaker to further fix the circuit breaker. The adjusting nut pushes the slide rod to move the locking rod, which facilitates adjustment of the locking state, enhances the fixing effect on the circuit breaker, and facilitates subsequent maintenance operations.

[0018] Optionally, the length of the groove is less than the length of the support shaft, and the end of the groove is not connected to the end of the support shaft;

[0019] The width of the groove is smaller than the inner diameter of the slot, the locking rod is cylindrical, and the outer wall of the locking rod fits against the inner wall of the slot.

[0020] By adopting the above technical solution, it is possible to prevent the slide rod from detaching from the end of the support shaft, making the locking rod slide more stably in the slot and better maintain its contact with the inner wall of the slot, thus ensuring that the locking rod effectively abuts against the side wall of the circuit breaker and ensuring that the circuit breaker is in a stable position.

[0021] Optionally, the outer wall of the support shaft is provided with an external thread, the internal thread of the adjusting nut is adapted to the external thread, and the adjusting nut is located between the bearing seat and the mounting plate;

[0022] A tension spring is provided inside the slot, one end of which is connected to the bottom of the slot, and the other end of which is connected to the end of the locking rod.

[0023] When the tension spring is in its natural extended state, the locking rod is fully located within the slot.

[0024] By adopting the above technical solution, the matching of the external thread and the internal thread allows the adjusting nut to rotate, move and be fixed on the support shaft, which facilitates pushing the slide rod to control the extension or retraction of the locking rod. When the adjusting nut no longer applies external force, the tension spring can use its own elasticity to make the locking rod fully retract into the slot, ensuring that the locking rod can automatically reset after maintenance.

[0025] Optionally, the top of the receiving tray is provided with a guide groove, the depth of which gradually increases along the receiving tray, with the deepest side of the guide groove being closer to the user.

[0026] By adopting the above technical solution, the top of the receiving tray is provided with a guide trough that gradually increases in depth and is closest to the user at its deepest point. This allows dropped objects to converge towards the user's side along the guide trough, making it convenient for cleaning and collection.

[0027] Optionally, a base is provided at each of the four corners of the top of the receiving tray, and a light rod is provided between each two adjacent bases. The four light rods are arranged in a rectangle, and each light rod is provided with a slider. Two sliders located in the width direction of the receiving tray are connected by a horizontal bar, and two sliders located in the length direction of the receiving tray are connected by a vertical bar.

[0028] A slide table is provided above the material guide chute, and both the horizontal bar and the vertical bar pass through the slide table. A reflector is provided on the top of the slide table, and the reflector is located below the circuit breaker.

[0029] By adopting the above technical solution, a frame structure is built with a base, smooth rod, slider, horizontal bar, and vertical bar, which allows the slide table to move the reflector freely in the horizontal plane, making it easier to observe the bottom status of the circuit breaker from different positions and improving maintenance convenience.

[0030] Optionally, the light rod and the base are both located outside the material guide groove, and the horizontal bar and the vertical bar are spaced apart in the thickness direction of the receiving tray.

[0031] By adopting the above technical solution, the guide rod and the base are located on the outside of the guide trough to avoid affecting the normal material receiving of the guide trough. The horizontal and vertical rods are spaced apart in the thickness direction of the receiving plate to ensure that the slide can move freely along the axial direction of the horizontal rod or the axial direction of the vertical rod.

[0032] Optionally, the top of the slide table is provided with a threaded hole, a support rod is adaptedly screwed into the threaded hole, a lower pad is provided at the top of the support rod, an upper pad is provided at the bottom of the reflector, and the upper pad and the lower pad are tightened together by screws;

[0033] The reflector has several perforations, and the top of the upper pad has several sleeves. The sleeves are respectively and correspondingly inserted into the perforations. The sleeves have compression springs and support columns inside. The reflector has a transparent baffle above it, and the support columns are used to support the baffle.

[0034] By adopting the above technical solution, the support rod can rotate in the threaded hole, which makes it easy to adjust the height of the reflector. The upper and lower pads are tightened with screws to make the reflector firmly installed on the support rod. The sleeve, compression spring and support column are provided by a transparent baffle. The transparent baffle can prevent foreign objects from falling and damaging the reflector during maintenance, while not affecting the observation of the bottom of the circuit breaker through the reflector.

[0035] Secondly, this application provides a method for using a large-scale power grid circuit breaker maintenance equipment, employing the following technical solution:

[0036] A method for using circuit breaker maintenance equipment for large-scale power grids, applicable to circuit breaker maintenance equipment for large-scale power grids, is characterized by including the following steps:

[0037] S1. Hoist the circuit breaker to the top of the base and align the mounting holes of the mounting base with the waist holes of the mounting plate, then insert and tighten the bolts;

[0038] S2. Turn the adjusting nut and push the slide bar until the locking rod touches the side wall of the circuit breaker;

[0039] S3. The drive mechanism operates, driving the support shaft and circuit breaker to rotate. When the circuit breaker rotates to the required position, the drive mechanism stops operating.

[0040] S4. Pull the baffle to move it to the designated position below the circuit breaker. Observe the state of the bottom of the circuit breaker through the reflector. Done.

[0041] By adopting the above technical solution, the drive mechanism drives the support shaft and the circuit breaker to rotate, which can adjust the circuit breaker to the required maintenance position. Pulling the baffle moves the baffle to the designated position and the bottom of the circuit breaker can be observed through the reflector, which facilitates the inspection of the bottom of the circuit breaker, improves maintenance efficiency, and allows some maintenance work to be completed without frequently rotating the circuit breaker, shortening the operation process and facilitating rapid maintenance.

[0042] In summary, this application has the following beneficial effects:

[0043] 1. The movable base allows the equipment to be easily moved to the maintenance site. A pair of mounting plates can fix the circuit breaker. With the help of the drive mechanism, the support shaft can be rotated to a suitable position, which is convenient for maintenance from different angles. There is no need to move the circuit breaker to other positions, shortening the operation process and achieving rapid maintenance.

[0044] 2. The support frame is taller than the circuit breaker and has a receiving tray underneath, which can catch fallen parts or debris when the circuit breaker is under maintenance, keeping the maintenance site clean. Attached Figure Description

[0045] Figure 1 Yes, this is a schematic perspective view of this application;

[0046] Figure 2 This is a reference diagram showing the assembly state of the bearing housing and the support shaft;

[0047] Figure 3 This is a reference diagram showing the exploded state of the support shaft and locking rod;

[0048] Figure 4 It is a schematic 3D diagram of the receiving tray;

[0049] Figure 5This is a reference diagram showing the assembly state of the slide and the reflector;

[0050] Figure 6 This is a reference diagram showing the explosion state of the rearview mirror and the baffle;

[0051] In the diagram: 1. Base; 2. Support frame; 3. Bearing seat; 4. Support shaft; 41. Slot; 42. Slide groove; 43. Locking rod; 44. Slide rod; 45. Adjusting nut; 46. External thread; 47. Tension spring; 5. Mounting plate; 50. Waist hole; 6. Circuit breaker; 61. Mounting seat; 62. Bolt; 7. Drive mechanism; 8. Receiving tray; 81. Guide chute; 82. Base; 83. Smooth rod; 84. Slider; 85. Horizontal bar; 86. Vertical bar; 87. Slide table; 88. Support rod; 89. Lower pad; 9. Reflector; 91. Upper pad; 92. Screw; 93. Sleeve; 94. Compression spring; 95. Support column; 96. Baffle. Detailed Implementation

[0052] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0053] This embodiment discloses a large-scale power grid circuit breaker maintenance device.

[0054] The maintenance equipment for large-scale power grid circuit breakers 6 includes a movable base 1 and a pair of support frames 2 located on top of the base 1. The pair of support frames 2 are positioned opposite each other on the top of the base 1, jointly supporting subsequent components. This arrangement ensures the overall stability of the equipment structure, enabling it to securely support the circuit breaker 6 for maintenance work. Specifically, the subsequent components supported by the support frames 2 include bearing seats 3, with each support frame 2 having a bearing seat 3 on its top. A support shaft 4 passes through the interior of the bearing seat 3, with one end of the support shaft 4 fitting snugly into the bearing seat 3. This interference fit ensures the support shaft 4 can rotate freely within the bearing seat 3 while preventing any slippage or wobbling. The other end of the support shaft 4 extends towards the circuit breaker 6, and a mounting plate 5 is located at the other end of the support shaft 4. A pair of mounting plates 5 are used to fix the circuit breaker 6. The mounting plates 5 are L-shaped, with their vertical ends connected to the support shaft 4. This connection can be secured by welding or bolts 62, ensuring connection stability. The horizontal end of the mounting plate 5 is provided with a waist hole 50, which extends along the length of the circuit breaker 6. The function of the waist hole 50 is to facilitate the adjustment of the installation position of the circuit breaker 6 to accommodate circuit breakers of different specifications or sizes. A mounting base 61 is provided on each of the two bottom sides of the circuit breaker 6. The two mounting bases 61 are placed on the horizontal ends of the two mounting plates 5 respectively and correspondingly. The mounting holes on the mounting bases 61 are aligned with the waist holes 50. Bolts 62 are inserted into the mounting holes and waist holes 50 to lock the mounting bases 61 and the mounting plates 5, thus firmly fixing the circuit breaker 6 to the mounting plates 5.

[0055] Each support frame 2 is also equipped with a drive mechanism 7 at its top. The drive mechanism 7 can be a gear transmission mechanism driven by a motor or a hydraulic drive mechanism 7. The drive mechanism 7 is used to drive the corresponding support shaft 4 to rotate. When the drive mechanism 7 is activated and the support shaft 4 rotates, the circuit breaker 6 mounted on the mounting plate 5 will rotate synchronously. This allows maintenance personnel to inspect the circuit breaker 6 from different angles without changing their own position, thus improving the convenience of maintenance.

[0056] The height of the support frame 2 is greater than the height of the circuit breaker 6 to allow sufficient space for the rotation of the circuit breaker 6 and to avoid interference with other components during rotation. A receiving tray 8 is located on top of the base 1 and below the circuit breaker 6. The receiving tray 8 collects parts, debris, and other waste that fall from the circuit breaker 6 during maintenance, keeping the maintenance environment clean. The receiving tray 8 can also be used to hold various maintenance tools. A guide groove 81 is located on the top of the receiving tray 8. The depth of the guide groove 81 gradually increases along the width of the receiving tray 8, with the deepest side of the guide groove 81 closer to the user. This allows fallen debris to collect along the guide groove 81 towards the user for easy cleaning.

[0057] The end face of the support shaft 4 not connected to the drive mechanism 7 is provided with a slot 41. A locking rod 43 is fitted into the slot 41. The locking rod 43 is cylindrical, and its outer wall fits against the inner wall of the slot 41, thus ensuring the stability of the locking rod 43 when sliding within the slot 41. A tension spring 47 is provided within the slot 41. One end of the tension spring 47 is connected to the bottom of the slot 41, and the other end is connected to the end of the locking rod 43. When the tension spring 47 is in its naturally extended state, the locking rod 43 is completely located within the slot 41 and will not affect the fixation of the circuit breaker 6 on the mounting plate 5. The top of the support shaft 4 is provided with a groove 42, which communicates with the slot 41 and extends along the axial direction of the support shaft 4. The width of the groove 42 is smaller than the inner diameter of the slot 41. The top of the locking rod 43 is provided with a sliding rod 44, which can be a circular or square rod. The sliding rod 44 passes through the groove 42 and extends above the support shaft 4. An adjusting nut 45 is screwed onto the outer wall of the support shaft 4. The internal thread of the adjusting nut 45 is adapted to the external thread 46 on the outer wall of the support shaft 4. The adjusting nut 45 is located between the bearing seat 3 and the mounting plate 5. When the adjusting nut 45 is rotated, it moves along the external thread 46 of the support shaft 4, thereby pushing the slide rod 44 to slide in the slide groove 42. This causes the locking rod 43 to extend out of the slot 41 and abut against the side wall of the circuit breaker 6, further enhancing the stability of the circuit breaker 6 installation. After the circuit breaker 6 has been inspected, the adjusting nut 45 is rotated towards the bearing seat 3. In this way, the tension spring 47 can pull the locking rod 43 and the slide rod 44 to reset.

[0058] Each of the four corners of the top of the receiving tray 8 is provided with a base 82. A smooth rod 83 is provided between each two adjacent bases 82, and the four smooth rods 83 are arranged in a rectangle. Each smooth rod 83 has a slider 84. The slider 84 can be made of engineering plastic, possessing good wear resistance and self-lubricating properties. The smooth rods 83 can be made of smooth stainless steel, with a smooth surface to reduce friction when the slider 84 slides. Two sliders 84 located in the width direction of the receiving tray 8 are connected by a crossbar 85, and two sliders 84 located in the length direction of the receiving tray 8 are connected by a vertical rod 86. The crossbars 85 and vertical rods 86 are spaced apart in the thickness direction of the receiving tray 8 to ensure that they do not interfere with each other during movement. A slide table 87 is provided above the guide trough 81. Both the crossbars 85 and vertical rods 86 pass through the slide table 87, allowing the slide table 87 to move freely and reliably above the receiving tray 8 under the guidance of the crossbars 85 and vertical rods 86. A reflector 9 is provided on the top of the slide table 87. The reflector 9 is located below the circuit breaker 6. The position of the reflector 9 can be adjusted by moving the slide table 87, making it convenient for maintenance personnel to observe the status of the bottom of the circuit breaker 6.

[0059] The top of the slide table 87 has a threaded hole, into which a support rod 88 is screwed. The support rod 88 is a threaded rod, and the top of the support rod 88 has a lower pad 89, which can be made of rubber to cushion and increase friction. The bottom of the reflector 9 has an upper pad 91, and the upper pad 91 and the lower pad 89 are tightened together with screws 92, thus reliably fixing the reflector 9 to the slide table 87. The reflector 9 has several through holes, and the top of the upper pad 91 has several sleeves 93, which are inserted one-to-one into the several through holes. The sleeves 93 contain compression springs 94 and support columns 95. A transparent baffle 96 is provided above the reflector 9, and the support columns 95 are used to support the baffle 96. When the baffle 96 is pulled, the compression spring 94 will be compressed or stretched to accommodate the movement of the baffle 96. At the same time, the support column 95 ensures the stability of the baffle 96. The baffle 96 is designed to protect the reflector 9 and will not affect the observation of the bottom of the circuit breaker 6 through the reflector 9.

[0060] The implementation principle of this embodiment is as follows: The large-scale power grid circuit breaker 6 maintenance equipment of this embodiment can be easily moved to the location of the circuit breaker 6 that needs maintenance via a movable base 1. Using the combination of support frame 2, bearing seat 3, support shaft 4, and mounting plate 5, the circuit breaker 6 is stably installed on the equipment, and can be rotated by the drive mechanism 7, facilitating maintenance from different angles. The receiving tray 8 can promptly collect debris falling during maintenance, keeping the environment clean. Meanwhile, the stability of the circuit breaker 6 installation is further enhanced by structures such as adjusting nut 45 and locking rod 43. The design of reflector 9 and baffle 96 facilitates maintenance personnel's observation of the bottom of the circuit breaker 6.

[0061] This embodiment also discloses a method for using a maintenance device for a large-scale power grid circuit breaker 6.

[0062] The method for using maintenance equipment for circuit breakers 6 in large-scale power grids, applicable to maintenance equipment for circuit breakers 6 in large-scale power grids, includes the following steps:

[0063] S1. Hoist the circuit breaker 6 above the base 1 and align the mounting hole of the mounting base 61 with the waist hole 50 of the mounting plate 5, then insert and tighten the bolt 62.

[0064] S2. Rotate the adjusting nut 45 and push the slide bar 44 until the locking bar 43 touches the side wall of the circuit breaker 6;

[0065] S3. The drive mechanism 7 operates, driving the support shaft 4 and the circuit breaker 6 to rotate. When the circuit breaker 6 rotates to the required position, the drive mechanism 7 stops operating.

[0066] S4. Pull the baffle 96 to move it to the designated position below the circuit breaker 6. Observe the state of the bottom of the circuit breaker 6 through the reflector 9. Done.

[0067] The implementation principle of this embodiment is as follows: The method of using the large-scale power grid circuit breaker 6 maintenance equipment in this embodiment, by following the above steps, can efficiently and accurately complete the maintenance processes such as installation, fixing, rotation, and observation of the circuit breaker 6. By first firmly installing the circuit breaker 6 on the equipment, then adjusting its angle using the drive mechanism 7, and finally observing the bottom condition with the help of the reflector 9, a comprehensive maintenance of the circuit breaker 6 is achieved.

[0068] 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 large-scale power grid circuit breaker maintenance equipment, characterized in that, The device includes a movable base (1) and a pair of support frames (2) on top of the base (1). Each support frame (2) has a bearing seat (3) on top, and a support shaft (4) passes through the bearing seat (3). A mounting plate (5) is provided at the end of the support shaft (4) away from the bearing seat (3). The pair of mounting plates (5) are used to fix the circuit breaker (6). Each support frame (2) also has a drive mechanism (7) on top, which is used to drive the corresponding support shaft (4) to rotate. The height of the support frame (2) is greater than the height of the circuit breaker (6). A receiving tray (8) is provided on top of the base (1) and below the circuit breaker (6). The top of the receiving tray (8) is provided with a guide groove (81), the depth of the guide groove (81) gradually increases along the receiving tray (8), and the side with the deepest depth of the guide groove (81) is close to the user. The receiving tray (8) has a base (82) at each of its four corners. A smooth rod (83) is provided between each two adjacent bases (82). The four smooth rods (83) are arranged in a rectangle. Each smooth rod (83) has a slider (84). Two sliders (84) located in the width direction of the receiving tray (8) are connected by a horizontal rod (85). Two sliders (84) located in the length direction of the receiving tray (8) are connected by a vertical rod (86). A slide table (87) is provided above the guide trough (81). The horizontal bar (85) and the vertical bar (86) both pass through the slide table (87). A reflector (9) is provided on the top of the slide table (87). The reflector (9) is located below the circuit breaker (6). The top of the slide (87) is provided with a threaded hole, and a support rod (88) is adapted to be screwed into the threaded hole. The top of the support rod (88) is provided with a lower pad (89), and the bottom of the reflector (9) is provided with an upper pad (91). The upper pad (91) and the lower pad (89) are tightened together by screws (92). The reflector (9) is provided with several through holes, and the top of the upper pad (91) is provided with several sleeves (93). The several sleeves (93) are respectively and correspondingly inserted into the several through holes. The sleeves (93) are provided with compression springs (94) and support columns (95). The top of the reflector (9) is provided with a transparent baffle (96), and the several support columns (95) are used to support the baffle (96).

2. The large-scale power grid circuit breaker maintenance equipment according to claim 1, characterized in that, The mounting plate (5) is L-shaped. The vertical end of the mounting plate (5) is connected to the support shaft (4). The horizontal end of the mounting plate (5) is provided with a waist hole (50). The waist hole (50) extends along the length direction of the circuit breaker (6). The circuit breaker (6) has a mounting base (61) on both sides of its bottom. The two mounting bases (61) are placed on the horizontal ends of the two mounting plates (5) respectively and in a one-to-one correspondence. The mounting holes on the mounting bases (61) are aligned with the waist holes (50). Bolts (62) are inserted into the mounting holes and the waist holes (50). The bolts (62) are used to lock the mounting bases (61) and the mounting plates (5).

3. The large-scale power grid circuit breaker maintenance equipment according to claim 2, characterized in that, One end of the support shaft (4) is adapted to be inserted into the bearing seat (3), and the other end of the support shaft (4) extends toward the circuit breaker (6); The other end face of the support shaft (4) not connected to the drive mechanism (7) is provided with a slot (41), and the top of the support shaft (4) is provided with a groove (42). The groove (42) communicates with the slot (41) and both extend along the axial direction of the support shaft (4). A locking rod (43) is fitted into the slot (41). One end of the locking rod (43) is located in the slot (41), and the other end of the locking rod (43) passes through the vertical end of the mounting plate (5) and fits against the outer wall of the circuit breaker (6). A slide rod (44) is provided at the top of the locking rod (43). The slide rod (44) passes through the slide groove (42) and extends above the support shaft (4). An adjusting nut (45) is screwed onto the outer wall of the support shaft (4). The adjusting nut (45) can push the slide rod (44) to slide in the slide groove (42).

4. The large-scale power grid circuit breaker maintenance equipment according to claim 3, characterized in that, The length of the groove (42) is less than the length of the support shaft (4), and the end of the groove (42) is not connected to the end of the support shaft (4); The width of the groove (42) is smaller than the inner diameter of the slot (41), the locking rod (43) is cylindrical, and the outer wall of the locking rod (43) fits against the inner wall of the slot (41).

5. The large-scale power grid circuit breaker maintenance equipment according to claim 3, characterized in that, The outer wall of the support shaft (4) is provided with an external thread (46), the internal thread of the adjusting nut (45) is adapted to the external thread (46), and the adjusting nut (45) is located between the bearing seat (3) and the mounting plate (5); The slot (41) is provided with a tension spring (47), one end of the tension spring (47) is connected to the bottom of the slot (41), and the other end of the tension spring (47) is connected to the end of the locking rod (43); When the tension spring (47) is in its natural extended state, the locking rod (43) is completely located in the slot (41).

6. The large-scale power grid circuit breaker maintenance equipment according to claim 1, characterized in that, The light rod (83) and the base (82) are both located outside the guide groove (81), and the horizontal bar (85) and the vertical bar (86) are spaced apart in the thickness direction of the receiving tray (8).

7. A method for using a large-scale power grid circuit breaker maintenance equipment, applied to the large-scale power grid circuit breaker maintenance equipment as described in claim 3, characterized in that... Includes the following steps: S1. Hoist the circuit breaker (6) above the base (1) and align the mounting hole of the mounting base (61) with the waist hole (50) of the mounting plate (5), then insert and tighten the bolt (62); S2. Rotate the adjusting nut (45) and push the slide bar (44) until the locking bar (43) abuts against the side wall of the circuit breaker (6); S3. The drive mechanism (7) operates, driving the support shaft (4) and the circuit breaker (6) to rotate. When the circuit breaker (6) rotates to the required position, the drive mechanism (7) stops operating. S4. Pull the baffle (96) to move the baffle (96) to the designated position below the circuit breaker (6). Observe the state of the bottom of the circuit breaker (6) through the reflector (9). Done.

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