Breaker pole disassembling and hoisting auxiliary vehicle
By designing a circuit breaker pole disassembly and lifting auxiliary vehicle, and using hydraulic rods and clamping devices to achieve horizontal flipping and clamping of the porcelain bottle, the problems of crane accessibility and uncontrollable crane force were solved, thereby improving the safety of circuit breaker disassembly and the protection effect of the equipment.
Patent Information
- Application Number
- CN202422848520.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-21
AI Technical Summary
During the disassembly and maintenance of the circuit breaker, the working environment where the crane cannot enter, the uncontrollable force of the crane, the risk of axle pins or tools falling into the support porcelain bottle unit, and the risk of the circuit breaker falling over when it is lifted vertically lead to insufficient equipment safety.
A circuit breaker pole disassembly and lifting auxiliary vehicle is designed, including a lifting auxiliary vehicle and an expansion trolley. The horizontal flipping and clamping of the porcelain bottle is achieved through hydraulic rods and clamping devices, providing a safe disassembly platform to prevent axle pins or tools from falling into the porcelain bottle unit, reducing the risk of damage.
It enables safe horizontal disassembly of circuit breakers at work sites where cranes are not available, improves equipment safety, reduces the incidence of porcelain bottle damage, and provides a safe and reliable disassembly platform.
Smart Images
Figure CN223428008U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of substation maintenance operations, in particular to a circuit breaker pole disassembly and hoisting auxiliary vehicle. Background Art
[0002] Circuit breaker disassembly and repair are often involved in circuit breaker maintenance operations and training. This is especially true when analyzing internal defects in faulty circuit breakers. However, whether on-site or in the maintenance laboratory, disassembly and repair of circuit breaker poles is typically performed using a crane or overhead crane, depending on the pole's structural characteristics.
[0003] According to the data, most of the dismantling and maintenance work currently requires removing the bolts fixing the arc extinguishing unit and the support porcelain bottle, using a crane to lift the unit 150mm, and removing the shaft pins between the insulating pull rods to separate the arc extinguishing unit and the support insulator, and then further dismantling the arc extinguishing chamber and porcelain sleeve. During the use of the crane, there are several problems:
[0004] 1. The working environment may not be suitable for the entry of a crane, or the maintenance room may not be equipped with a crane, which may make it impossible to carry out dismantling work on site; 2. The force of the crane is uncontrollable. If the commander and the crane driver do not cooperate well enough, there may be a risk of breaking the pull rod; 3. During the removal of the axle pin, there is a risk that the axle pin or tool will fall into the support porcelain bottle unit and damage the porcelain bottle; 4. The circuit breaker needs to be hoisted vertically, and there is also a risk of tipping over when the circuit breaker is placed vertically.
[0005] Therefore, there is an urgent need for a circuit breaker pole disassembly and lifting auxiliary vehicle, which can be used to complete the operation at the work site when the safety distance does not meet the use of a crane, thereby realizing horizontal disassembly of the circuit breaker, avoiding the risk of axle pins or tools falling into the support porcelain bottle unit and damaging the porcelain bottle, and improving the safety level of the equipment. Utility Model Content
[0006] The purpose of the utility model is to solve the deficiencies of the prior art and provide a circuit breaker pole disassembly and lifting auxiliary vehicle, so that when the safety distance does not meet the requirements of the crane at the work site, the auxiliary vehicle can be used to complete the operation and realize the horizontal disassembly of the circuit breaker, avoiding the risk of axle pins or tools falling into the support porcelain bottle unit and damaging the porcelain bottle, thereby improving the safety level of the equipment.
[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0008] A circuit breaker pole disassembly and hoisting auxiliary vehicle, comprising: a hoisting auxiliary vehicle, and two expansion trolleys detachably connected to both ends of the hoisting auxiliary vehicle;
[0009] The hoisting auxiliary vehicle sequentially comprises, from bottom to top, a hoisting auxiliary vehicle base, a hoisting auxiliary vehicle movable base and a hoisting auxiliary vehicle clamping device; the right end top of the hoisting auxiliary vehicle base is rotationally connected with the right end bottom of the hoisting auxiliary vehicle movable base; the left end top of the hoisting auxiliary vehicle base is connected with the middle end bottom of the hoisting auxiliary vehicle movable base through a hydraulic rod; the hoisting auxiliary vehicle movable base is detachably connected with the hoisting auxiliary vehicle clamping device; the hoisting auxiliary vehicle clamping device comprises a first clamping device and a second clamping device; the first clamping device and the second clamping device are of the same structure; the right end of the second clamping device is detachably connected with a supporting plate.
[0010] Preferably, the hoisting auxiliary vehicle base comprises a plurality of connected channel steels, a plurality of square steels arranged on the top of the channel steels, a hydraulic rod fulcrum arranged on the top of the channel steels and a movable base fulcrum; the hydraulic rod fulcrum is rotationally connected with one end of the hydraulic rod; the movable base fulcrum is rotationally connected with the right end bottom of the hoisting auxiliary vehicle movable base; the plurality of channel steels form a rectangular frame, and the bottom of the rectangular frame is provided with a plurality of universal wheels with locks.
[0011] Preferably, the hoisting auxiliary vehicle movable base comprises a connecting bottom plate, two limiting plates arranged on the two sides of the connecting bottom plate respectively, and a plurality of nylon rollers arranged between the two limiting plates; the right end bottom of the connecting bottom plate is provided with a turnover fulcrum, and the turnover fulcrum is rotationally connected with the movable base fulcrum; the two limiting plates are provided with a plurality of holes, and a plurality of pins are inserted into the holes.
[0012] Preferably, the first clamping device comprises a guide bottom plate and a clamp mounting plate arranged on the top end of the guide bottom plate; the top of the clamp mounting plate is provided with a plurality of notches, and the plurality of notches are symmetrically provided with two rows of notches; each notch is slidably connected with a clamp, and the clamp is integrally provided with a guide sleeve at the bottom; the front side of the clamp mounting plate is provided with a prefabricated hole, and a reversible thread rod is rotationally connected in the prefabricated hole; the reversible thread rod is provided with a positive thread corresponding to the position of the first row of notches and a reverse thread corresponding to the position of the second row of notches; the guide sleeve is sleeved with the reversible thread rod, and the guide sleeve is provided with a thread matched with the reversible thread rod; one end of the reversible thread rod penetrates out of the prefabricated hole, and the idle end of the reversible thread rod is provided with a crank handle; the clamps arranged in the first row of notches and the clamps arranged in the second row of notches are symmetrically arranged, and the clamps arranged in the first row of notches and the clamps arranged in the second row of notches form an arc-shaped space.
[0013] Preferably, the supporting plate comprises a bearing pin shaft detachably connected with the right end top of the clamp mounting plate, a lifting plate integrally arranged with the bearing pin shaft, and a lifting pad arranged at the left end of the lifting plate.
[0014] Preferably, the hydraulic rod comprises a hydraulic rod cylinder rotationally connected with the hydraulic rod fulcrum, and a piston rod rotationally connected with the middle end bottom of the hoisting auxiliary vehicle movable base at one end and sleeved with the hydraulic rod cylinder at the other end.
[0015] Preferably, two bracket limit pins are provided between the supporting points of the movable base, a movable bracket is detachably connected between the two bracket limit pins, and the movable bracket is inserted between the two bracket limit pins through a connecting block; a universal wheel with a lock is provided at the bottom of the movable bracket.
[0016] Preferably, a rubber pad is provided on the top of the clamp mounting plate; and a clamp rubber pad is provided on the inner side of the clamp.
[0017] Preferably, the lifting auxiliary vehicle is connected to the expansion vehicle via a buckle.
[0018] Preferably, the expansion trolley includes: a trolley bottom plate, two baffles respectively arranged at both ends of the trolley bottom plate, a plurality of nylon rollers arranged between the two baffles, and a trolley bracket arranged below the trolley bottom plate; a universal wheel with a lock is provided at the bottom of the trolley bracket.
[0019] The utility model discloses a circuit breaker pole disassembly and hoisting auxiliary vehicle having the following beneficial effects.
[0020] The utility model can realize flipping from a horizontal position to a vertical position through a lifting auxiliary vehicle. When the lifting auxiliary vehicle is flipped to a vertical position, the clamping device of the lifting auxiliary vehicle is used to clamp the porcelain bottle, and then the porcelain bottle maintenance operation is carried out. This can solve the problem of damaged porcelain bottles or porcelain bottles falling sideways when the operation site does not meet the requirements of crane use or the existence of lifting porcelain bottles during the maintenance of pole porcelain bottles, improve the safety of pole porcelain bottle maintenance, and reduce the incidence of porcelain bottle damage during the operation. The expansion trolley can provide a support platform when the porcelain bottle pole is disassembled horizontally. The utility model can also be used as a teaching aid, which can display the pole porcelain bottle disassembly process horizontally in front of the eyes. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0022] Figure 2 This is a structural diagram of the lifting auxiliary vehicle of the utility model.
[0023] Figure 3 This is a structural diagram of the base of the lifting auxiliary vehicle of the utility model.
[0024] Figure 4 This is a structural diagram of the movable base of the lifting auxiliary vehicle of the utility model.
[0025] Figure 5 This is a schematic structural diagram of the first clamping device of the present invention.
[0026] Figure 6 This is a structural diagram of the expansion trolley of the utility model.
[0027] Figure 7 This is a schematic diagram of the horizontal disassembly of the porcelain bottle pole of the utility model.
[0028] Figure 8 This is a schematic diagram of the flipping of the lifting auxiliary vehicle of the utility model.
[0029] In the attached figure: 1 - expansion trolley; 2 - lifting auxiliary trolley; 3 - lifting auxiliary trolley base; 4 - lifting auxiliary trolley movable base; 5 - lifting auxiliary trolley clamping device; 6 - pallet; 7 - movable bracket; 8 - first clamping device; 9 - second clamping device; 10 - hydraulic rod fulcrum; 11 - channel steel; 12 - square steel; 13 - hydraulic rod cylinder; 14 - piston rod; 15 - movable base fulcrum; 16 - bracket limit pin; 17 - connecting block; 18-locking universal wheel; 19-limiting plate; 20-nylon roller; 21-connecting base plate; 22-flip fulcrum; 23-bolt; 24-pin; 25-guide base plate; 26-clamp mounting plate; 27-clamp rubber pad; 28-clamp; 29-lifting plate; 30-lifting pad; 31-load-bearing pin; 32-rubber pad; 33-crank handle; 34-positive and negative screw rod; 35-baffle; 36-trolley base plate; 37-trolley bracket. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.
[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. Example 1
[0032] At the circuit breaker maintenance site, the circuit breaker pole porcelain bottle stands vertically on the ground. The normal maintenance process is to use a crane to lift the porcelain bottle and then dismantle it for maintenance. However, when using the crane, there are several problems:
[0033] 1. The working environment may not be suitable for the crane to enter, or the maintenance room may not be equipped with a crane, which may make it impossible to carry out the dismantling work on site; 2. The force of the crane is uncontrollable. If the coordination between the commander and the crane driver is not good enough, there may be a risk of breaking the pull rod; 3. During the removal of the axle pin, there is a risk that the axle pin or tool will fall into the support porcelain bottle unit and damage the porcelain bottle; 4. The circuit breaker needs to be hoisted vertically. There is also a risk of the circuit breaker falling sideways when placed vertically. Figure 1Based on this embodiment, a circuit breaker pole disassembly and lifting auxiliary vehicle is provided, comprising: a lifting auxiliary vehicle 2, and two expansion trolleys 1 detachably connected to both ends of the lifting auxiliary vehicle 2; in this embodiment, the lifting auxiliary vehicle 2 is mainly used to horizontally flip the vertically standing porcelain bottle pole, such as Figure 7 As shown, the function of the expansion trolley 1 is to provide a support platform when the porcelain bottle pole is disassembled horizontally.
[0034] Reference Figure 2 The lifting auxiliary vehicle includes, from bottom to top,: a lifting auxiliary vehicle base 3, a lifting auxiliary vehicle movable base 4, and a lifting auxiliary vehicle clamping device 5; the top of the right end of the lifting auxiliary vehicle base 3 is rotatably connected to the bottom of the right end of the lifting auxiliary vehicle movable base 4; the top of the left end of the lifting auxiliary vehicle base 3 is rotatably connected to the bottom of the middle end of the lifting auxiliary vehicle movable base 4 through a hydraulic rod; the lifting auxiliary vehicle movable base 4 is detachably connected to the lifting auxiliary vehicle clamping device 5; as an option, in this embodiment, the lifting auxiliary vehicle movable base 4 is connected to the lifting auxiliary vehicle clamping device 5 by a pin 24, and when the pin 24 is removed, the lifting auxiliary vehicle clamping device 5 can slide relative to the lifting auxiliary vehicle movable base 4; the lifting auxiliary vehicle clamping device 5 is divided into a first clamping device 8 and a second clamping device 9; the first clamping device 8 and the second clamping device 9 have the same structure; the right end of the second clamping device 9 is detachably connected to a support plate 6.
[0035] The hydraulic rod includes a hydraulic rod cylinder 13 rotatably connected to the hydraulic rod fulcrum 10 and a piston rod 14 with one end sleeved on the hydraulic rod cylinder 13 and the other end rotatably connected to the bottom of the middle end of the movable base 4 of the lifting auxiliary vehicle.
[0036] In this embodiment, during operation, the lifting auxiliary vehicle 2 can be moved from a horizontal position to a Figure 8 The vertical position flipping principle is similar to that of the dump truck structure. When the lifting auxiliary vehicle 2 is flipped to the vertical position, the lifting auxiliary vehicle clamping device 5 is used to clamp the porcelain bottle, and then the porcelain bottle maintenance operation is completed.
[0037] Reference Figure 5 Preferably, the support plate 6 in this embodiment includes: a load-bearing pin 31 detachably connected to the top right end of the fixture mounting plate 26; a lifting plate 29 integrally formed with the load-bearing pin 31; and a lifting pad 30 provided at the left end of the lifting plate 29. The lifting pad 30 is bonded to the lifting plate 29 with 3M adhesive and primarily serves to protect the porcelain bottle from damage caused by collisions during the flipping process. The main function of the support plate 6 is to provide a support platform for the circuit breaker pole porcelain bottle when the trolley is flipped to the vertical position, providing support for the platform.
[0038] Reference Figure 3Preferably, in this embodiment, the base 3 of the lifting auxiliary vehicle comprises: a plurality of welded channel steels 11, a plurality of square steels 12 welded to the top of the channel steels 11, a hydraulic rod fulcrum 10 welded to the top of the channel steels 11, and a movable base fulcrum 15; the hydraulic rod fulcrum 10 is rotatably connected to one end of the hydraulic rod; the movable base fulcrum 15 is rotatably connected to the bottom right end of the movable base 4 of the lifting auxiliary vehicle; the plurality of channel steels 11 are welded to form a rectangular frame made of high-strength engineering structural steel, and the bottom of the rectangular frame is provided with a plurality of lockable universal wheels 18, which are equidistantly arranged. The universal wheels with a self-locking mechanism facilitate movement of the device.
[0039] Reference Figure 4 The movable base 4 of the lifting auxiliary vehicle includes: a connecting base plate 21, two limit plates 19 welded on both sides of the connecting base plate 21, and a number of nylon rollers 20 arranged between the two limit plates 19; in this embodiment, the number of nylon rollers 20 are arranged equidistantly, and the number of nylon rollers 20 are connected to the limit plates 19 by high-strength bolts 23; the nylon rollers 20 facilitate lateral movement when the circuit breaker porcelain bottle pole is disassembled; a flip fulcrum 22 is provided at the bottom of the right end of the connecting base plate 21, and the flip fulcrum 22 is rotatably connected to the movable base fulcrum 15; the two limit plates 19 are provided with a number of holes, and a number of pins 24 are inserted into the holes. The number of pins 24 detachably connects the movable base 4 of the lifting auxiliary vehicle with the clamping device 5 of the lifting auxiliary vehicle, and the movable base 4 of the lifting auxiliary vehicle is separated from the clamping device 5 of the lifting auxiliary vehicle by pulling out the pins 24. Example 2
[0040] Please refer to Example 1 Figure 5The first clamping device 8 includes: a guide base plate 25, a clamp mounting plate 26 welded to the top of the guide base plate 25; a plurality of notches are provided on the top of the clamp mounting plate 26, and the plurality of notches are symmetrically arranged in two rows. In this embodiment, there are a total of 6 notches, three in each row, and a clamp 28 is slidably connected in each slot. The notch is used to install the clamp and provide a guiding function. A guide sleeve is integrally provided at the bottom of the clamp 28; a prefabricated hole is provided on the front side of the clamp mounting plate 26, and a positive and negative threaded rod 34 is rotatably connected in the prefabricated hole. It should be understood that the positive and negative threaded rod 34 can rotate in the prefabricated hole. During the rotation, the positive and negative threaded rod 34 does not move relative to the prefabricated hole. As an option, the screw rod and the prefabricated hole can be connected by a bearing, the inner ring of the bearing is connected to the screw rod, and the outer ring of the bearing is connected to the prefabricated hole; the positive thread of the positive and negative threaded rod 34 corresponds to the position of the first row of notches, the negative thread corresponds to the position of the second row of notches, and the guide sleeve is connected to the positive and negative threaded rod The screw rod 34 is sleeved, and the guide sleeve is provided with a thread matching the positive and negative screw rods 34. It should be understood that the guide sleeve provided with a thread matching the positive and negative screw rods 34 stated here means that the guide sleeve is divided into two groups, corresponding to the clamps installed on the two rows, the threads inside one group of guide sleeves match the positive teeth of the positive and negative screw rods 34, and the threads inside the other group of guide sleeves match the negative teeth of the positive and negative screw rods 34; one end of the positive and negative screw rods 34 passes through the prefabricated hole, and the idle end of the positive and negative screw rods 34 is provided with a crank 33; by turning the crank 33, the positive and negative screw rods 34 are driven to rotate together. Since the tooth shapes on both sides of the positive and negative screw rods 34 are opposite, the clamps will also move toward opposite positions during the rotation process, thereby achieving clamping and loosening; the clamps 28 provided in the first row of slots and the clamps 28 provided in the second row of slots are arranged symmetrically, and the clamps 28 in the first row of slots and the clamps 28 in the second row of slots form an arc space.
[0041] A rubber pad 32 is located on the top of the fixture mounting plate 26, and a clamp rubber pad 27 is located on the inside of the fixture 28. The rubber pad 32 and clamp rubber pad 27 are attached to the top of the fixture mounting plate 26 and the inside of the fixture 28, respectively, using 3M adhesive. These pads primarily protect the porcelain bottle from damage caused by bumps during flipping, and provide cushioning and protection when clamping the porcelain bottle, preventing damage from the metal clamp. Example 3
[0042] Please refer to Figure 3 Two bracket stop pins 16 are located between the fulcrums 15 of the movable base. A movable bracket 7 is detachably connected between these two bracket stop pins 16. The movable bracket 7 is inserted between the two bracket stop pins 16 via a connecting block 17. Lockable universal wheels 18 are located at the bottom of the movable bracket 7. The movable bracket 7 primarily provides support when the auxiliary vehicle is flipped to a vertical position. It can be removed during normal operation and reinstalled for ease of use. Example 4
[0043] Please refer to Figure 6The expansion trolley 1 comprises a trolley base, two baffles welded to each end of the base, several nylon rollers 20 connected between the two baffles via bolts 23, and a trolley bracket welded below the base. The bracket is equipped with a lockable universal wheel 18. The nylon rollers 20 facilitate lateral movement when disassembling the circuit breaker's porcelain bottle poles. The lifting auxiliary trolley 2 is connected to the expansion trolley 1 via a drawstring, allowing for quick connection and removal.
[0044] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Replacements may include partial structures, devices, method steps, or complete technical solutions. Equivalent replacements or modifications based on the technical solution and its concept of the present invention are intended to fall within the scope of protection of the present invention.
Claims
1. A circuit breaker pole disassembly and lifting auxiliary vehicle, characterized in that: include: A lifting auxiliary vehicle (2), and two expansion trolleys (1) detachably connected to both ends of the lifting auxiliary vehicle (2); The lifting auxiliary vehicle comprises, from bottom to top, a lifting auxiliary vehicle base (3), a lifting auxiliary vehicle movable base (4), and a lifting auxiliary vehicle clamping device (5); the top of the right end of the lifting auxiliary vehicle base (3) is rotatably connected to the bottom of the right end of the lifting auxiliary vehicle movable base (4); the top of the left end of the lifting auxiliary vehicle base (3) is connected to the bottom of the middle end of the lifting auxiliary vehicle movable base (4) through a hydraulic rod; the lifting auxiliary vehicle movable base (4) is detachably connected to the lifting auxiliary vehicle clamping device (5); the lifting auxiliary vehicle clamping device (5) is divided into a first clamping device (8) and a second clamping device (9); the first clamping device (8) and the second clamping device (9) have the same structure; the right end of the second clamping device (9) is detachably connected to a support plate (6).
2. A circuit breaker pole disassembly and lifting auxiliary vehicle according to claim 1, characterized in that: The hoisting auxiliary vehicle base (3) comprises: a plurality of channel steels (11) connected as one body, a plurality of square steels (12) arranged on the top of the channel steels (11), a hydraulic rod fulcrum (10) arranged on the top of the channel steels (11), and a movable base fulcrum (15); the hydraulic rod fulcrum (10) is rotatably connected to one end of the hydraulic rod; the movable base fulcrum (15) is rotatably connected to the bottom right end of the movable base (4) of the hoisting auxiliary vehicle; the plurality of channel steels (11) form a rectangular frame, and a plurality of locking universal wheels (18) are provided at the bottom of the rectangular frame.
3. The circuit breaker pole disassembly and lifting auxiliary vehicle according to claim 2, characterized in that: The movable base (4) of the lifting auxiliary vehicle comprises: a connecting base plate (21), two limiting plates (19) respectively arranged on both sides of the connecting base plate (21), and a plurality of nylon rollers (20) arranged between the two limiting plates (19); a turning fulcrum (22) is provided at the bottom of the right end of the connecting base plate (21), and the turning fulcrum (22) is rotatably connected to the movable base fulcrum (15); the two limiting plates (19) are provided with a plurality of holes, and a plurality of pins (24) are inserted into the holes.
4. The circuit breaker pole disassembly and lifting auxiliary vehicle according to claim 1, characterized in that: The first clamping device (8) comprises: a guide base plate (25), a fixture mounting plate (26) arranged at the top of the guide base plate (25); a plurality of notches are provided on the top of the fixture mounting plate (26), and the plurality of notches are symmetrically arranged in two rows, each of which is slidably connected to a fixture (28), and a guide sleeve is integrally provided at the bottom of the fixture (28); a prefabricated hole is provided on the front side of the fixture mounting plate (26), and a positive and negative threaded rod (34) is rotatably connected to the prefabricated hole, and the positive and negative threaded rod (34) is connected to the first row of notches. The positions correspond, the reverse thread corresponds to the position of the second row of slots, the guide sleeve is sleeved with the positive and negative thread rods (34), and the guide sleeve is provided with threads matching the positive and negative thread rods (34); one end of the positive and negative thread rods (34) passes through the prefabricated hole, and the idle end of the positive and negative thread rods (34) is provided with a crank (33); the clamps (28) provided in the first row of slots and the clamps (28) provided in the second row of slots are symmetrically arranged, and the clamps (28) provided in the first row of slots and the clamps (28) provided in the second row of slots form an arc space.
5. The circuit breaker pole disassembly and lifting auxiliary vehicle according to claim 1, characterized in that: The support plate (6) comprises: a load-bearing pin (31) detachably connected to the top of the right end of the fixture mounting plate (26), a lifting plate (29) integrally provided with the load-bearing pin (31), and a lifting pad (30) provided at the left end of the lifting plate (29).
6. The circuit breaker pole disassembly and lifting auxiliary vehicle according to claim 1, characterized in that: The hydraulic rod comprises a hydraulic rod cylinder (13) rotatably connected to the hydraulic rod fulcrum (10), and a piston rod (14) having one end sleeved on the hydraulic rod cylinder (13) and the other end rotatably connected to the bottom of the middle end of the movable base (4) of the lifting auxiliary vehicle.
7. The circuit breaker pole disassembly and lifting auxiliary vehicle according to claim 2, characterized in that: Two bracket limit pins (16) are provided between the supporting points (15) of the movable base, and a movable bracket (7) is detachably connected between the two bracket limit pins (16). The movable bracket (7) is inserted between the two bracket limit pins (16) through a connecting block (17); a universal wheel (18) with a lock is provided at the bottom of the movable bracket (7).
8. The circuit breaker pole disassembly and lifting auxiliary vehicle according to claim 4, characterized in that: A rubber pad (32) is provided on the top of the clamp mounting plate (26); and a clamp rubber pad (27) is provided on the inner side of the clamp (28).
9. The circuit breaker pole disassembly and lifting auxiliary vehicle according to claim 1, characterized in that: The lifting auxiliary vehicle (2) is connected to the expansion vehicle (1) via a drawstring.
10. The circuit breaker pole disassembly and lifting auxiliary vehicle according to claim 1, characterized in that: The expansion trolley (1) comprises: a trolley bottom plate, two baffles respectively arranged at both ends of the trolley bottom plate, a plurality of nylon rollers (20) arranged between the two baffles, and a trolley bracket arranged below the trolley bottom plate; a universal wheel (18) with a lock is provided at the bottom of the trolley bracket.