Electric power overhaul auxiliary device convenient to adjust

Abstract

The invention discloses an electric power overhaul auxiliary device convenient to adjust, and relates to the technical field of electric power construction.The electric power overhaul auxiliary device comprises a chassis, a circular supporting column is fixedly installed at the top of the chassis, an upper base is slidably installed on the circumferential face of the circular supporting column, fence supports are fixedly installed at the top of the upper base, and handrails are fixedly connected between the fence supports; main oil tanks are fixedly installed on the front portion and the rear portion of the chassis, a lifting ejector rod is fixedly installed on the top of the chassis, an ejector rod head is fixedly installed at the output end of the lifting ejector rod, an ejector rod support is slidably installed on the top of the chassis, and a base ejector rod is rotatably installed on the front portion of the ejector rod support. The end, away from the ejector rod support, of the base ejector rod is rotationally installed at the bottom of the upper base, an anti-falling device is arranged on the top of the chassis, the slow oil return tank achieves anti-falling, meanwhile, the rising speed during work is not affected, and the safety of constructors in the construction process is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power construction, and particularly to a power maintenance auxiliary device that is convenient to adjust. Background Art

[0002] A power maintenance auxiliary device that is convenient to adjust is usually used to provide a more convenient and safe construction environment for construction workers as an auxiliary during electric power construction. The purpose is to improve construction efficiency while ensuring the safety of construction workers.

[0003] The patent with the patent announcement number CN215378262U relates to the field of power maintenance, and is a power maintenance auxiliary device, including a base. A carrier plate is provided on the upper side of the base, and the base and the carrier plate are fixedly connected by a lifting mechanism. A column is fixed on the upper end surface of the base. A pedal is slidably installed between two columns on the right side. Adjacent pedals are fixedly connected by a rope, and the pedal on the upper side is fixed to the right end of the carrier plate. A fence and a door bar are provided on the upper side of the carrier plate. A plurality of partitions are provided between the fence, the door bar and the carrier plate. The fence, the door bar and the partitions are all fixedly connected by springs. Limiting rods and threaded rods inserted into the carrier plate are fixed to the lower ends of the fence and the door bar. A threaded sleeve sleeved with the threaded rod is rotatably installed on the lower end surface of the carrier plate; this patent can adjust the height of the fence and the door bar, which is convenient for the staff to carry out maintenance work on the premise of ensuring safety.

[0004] In the above patent, there are many beneficial effects, and there are many aspects of consideration and guarantee for the safety of construction workers. However, there are still some problems in the actual use process, such as the stability of the working platform during the rising process and the overall stability of the device when it enters the working state. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a power maintenance auxiliary device that is convenient to adjust, and solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: a power maintenance auxiliary device that is easy to adjust, including a chassis. A circular pillar is fixedly installed on the top of the chassis. An upper base is slidably installed on the circumferential surface of the circular pillar. A fence support is fixedly installed on the top of the upper base. A railing is fixedly connected between the fence supports. A main fuel tank is fixedly installed in the front and rear of the chassis. A lifting jack is fixedly installed on the top of the chassis. A jack head is fixedly installed at the output end of the lifting jack. A jack support is slidably installed on the top of the chassis. A base jack is rotatably installed at the front of the jack support. The end of the base jack away from the jack support is rotatably installed at the bottom of the upper base. An anti-falling device is arranged on the top of the chassis. The anti-falling device includes a slow-return fuel tank, a slow-return jack, a large-hole baffle, and a small-hole baffle. The slow-return fuel tank is fixedly installed on the top of the lifting jack. The large-hole baffle is fixedly installed at the rear of the inner wall of the slow-return fuel tank. The small-hole baffle is rotatably installed on the top of the large-hole baffle. The slow-return jack is slidably installed inside the slow-return fuel tank. The end of the slow-return jack away from the large-hole baffle is fixedly connected to the jack support. The small-hole baffle in the slow-return fuel tank restricts the flow rate and velocity of the hydraulic oil when it flows back. When the hydraulic oil inside it flows forward, the hydraulic oil pushes open the small-hole baffle and flows out from the opening of the large-hole baffle, preventing the upper base from falling rapidly due to unexpected situations during the working process of the device. At the same time, the large-hole baffle inside the slow-return fuel tank achieves the effect of not affecting the rising speed during work while preventing falling, ensuring the safety of construction workers during the construction process.

[0007] According to the above technical solution, a support device is arranged on the top of the chassis. The support device includes a hydraulic cylinder, a wheel top column one, a wheel top column two, a footrest, and a wheel top gasket. The hydraulic cylinder is fixedly installed on the top of the chassis. The wheel top column one is slidably installed at the bottom of the hydraulic cylinder. The wheel top gasket is fixedly installed at the bottom of the wheel top column one. The wheel top column two is slidably installed on the side of the hydraulic cylinder. The footrest is fixedly installed at the bottom of the wheel top column two. Before the device enters the working state, when the wheels are retracted into the chassis, the circumferential surface of the wheels contacts and presses the wheel top gasket, causing it to move upward. The movement of the wheel top gasket drives the wheel top column one to squeeze the hydraulic oil inside the hydraulic cylinder, and the hydraulic oil then squeezes the wheel top column two and makes it extend, thereby realizing that when the wheels are retracted into the chassis, the footrest is extended and contacts the ground, increasing the overall contact area of the device with the ground and improving the overall stability of the device.

[0008] According to the above technical solution, the supporting device further includes a wheel axle pin, a wheel cross axle, a wheel axle bracket and a wheel. The wheel axle pin is fixedly installed at the bottom of the ejector rod head. The wheel axle bracket is rotatably installed at the bottom of the chassis. The wheel cross axle is rotatably installed inside the wheel axle bracket. The wheel is fixedly installed on the side surface of the wheel cross axle. When the ejector rod head drives the wheel axle pin to move, the wheel cross axle of the device disengages from the wheel axle pin and moves upward under the guidance of the wheel axle bracket. At the same time, the wheel cross axle drives the wheel to move upward together, that is, the wheel is retracted into the chassis before the device enters the working state, avoiding unnecessary shaking during the working process.

[0009] According to the above technical solution, a door locking device is provided on the top of the chassis. A rotatable support column is rotatably installed on the top of the chassis. A rotating door is rotatably installed on the top of the upper base. A thin steel wire rope is fixedly connected to the top of the wheel top gasket. The end of the thin steel wire rope away from the wheel top gasket is fixedly connected to the circumferential surface of the rotatable support column. An L-shaped groove is opened at the top of the circumferential surface of the rotatable support column. A convex block is sleeved on the top of the circumferential surface of the rotatable support column. A bolt is slidably installed at the front part of the fence bracket. A bolt groove is fixedly installed at the front part of the rotating door. When the wheel top gasket moves upward, it drives the rotatable support column to rotate by pulling the thin steel wire rope. The rotation of the rotatable support column drives the convex block to squeeze the bolt into the bolt groove. Through the door locking device, the rotating door is locked once the upper base plate starts to rise, preventing safety hazards caused by construction workers' negligence.

[0010] According to the above technical solution, a spring is provided between the wheel top gasket and the hydraulic cylinder. A return spring is provided between the bolt and the fence bracket. A volute spring is provided between the rotating door and the upper base. The return spring can reset the bolt when it is not squeezed, so as to disengage from the bolt groove, enabling the door locking device to release the limit under special circumstances.

[0011] According to the above technical solution, the convex block can slide along the L-shaped groove. A chute is opened at the bottom of the chassis. A limit block is fixedly installed on the top of the chassis. The limit block contacts the ejector rod support. The limit block can perform multiple steps step by step, that is, after the wheel is completely retracted into the chassis, the ejector rod head contacts the rear part of the ejector rod support and pushes it to move, preventing the device from being unstable due to multiple steps being carried out simultaneously.

[0012] According to the above technical solution, an arc-shaped groove is opened at the bottom of the wheel axle pin. The circumferential surface of the wheel cross axle contacts the arc surface of the arc-shaped groove. The contact between the arc surface of the arc-shaped groove and the circumferential surface of the wheel cross axle can make the rotation of the wheel cross axle more stable during the movement of the device.

[0013] According to the above technical solution, the circumferential surface of the wheel contacts the bottom of the wheel top gasket, and the front end of the axle pin is provided with a slope. The slope at the front end of the axle pin can make the process of the wheel transverse axis and the wheel retracting into the chassis smoother, thereby avoiding internal vibration during the operation of the device.

[0014] The present invention provides an electric power maintenance auxiliary device which is easy to adjust and has the following beneficial effects: (1) In the invention, the small hole baffle in the slow return oil tank will limit the flow rate and flow velocity of the hydraulic oil when it flows back. When the hydraulic oil inside it flows forward, the hydraulic oil pushes the small hole baffle open and flows out from the opening of the large hole baffle, preventing the upper base of the device from falling rapidly due to unexpected circumstances during operation. At the same time, the large hole baffle inside the slow return oil tank can prevent falling without affecting the rising speed during work, thereby ensuring the safety of construction workers during construction.

[0015] (2) In the present invention, when the push rod head drives the wheel axle pin to move, the wheel cross axis of the device is separated from the wheel axle pin and moves upward. At the same time, the wheel cross axis drives the wheel to move upward together. The wheel then extends the wheel top column 2 by squeezing the wheel top gasket. This enables the device to retract the wheel into the chassis and extend the tripod from the side to contact the ground before entering the working state, thereby preventing the device from shaking during the working process and causing unnecessary influence, thereby improving the stability of the device during the working process.

[0016] (3) In this invention, when the wheel top gasket moves upward, the thin steel wire rope is pulled to drive the rotatable support to rotate. The rotation of the rotatable support drives the protrusion to squeeze the pin and insert it into the pin groove. The door locking device can lock the rotating door once the upper base plate starts to rise, thereby preventing safety hazards caused by negligence of construction workers. At the same time, the L-shaped groove can enable construction workers to contact the locked state by themselves in an emergency to obtain rescue, further improving the overall safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the chassis surface structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the slow return oil tank of the present invention; Figure 4 It is a schematic diagram of the structure of the hydraulic cylinder of the present invention; Figure 5 This is a schematic diagram of the bottom structure of the chassis of the present invention; Figure 6 It is a schematic diagram of the side structure of the chassis of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the door locking device of the present invention; Figure 8 This is a schematic diagram of the upper part structure of the door-locking device of the present invention.

[0018] In the figure: 1, chassis; 2, upper base; 3, fence bracket; 4, circular pillar; 501, rotatable pillar; 502, bump; 503, thin steel wire rope; 504, L-shaped groove; 505, bolt; 506, bolt groove; 507, rotating door; 6, railing; 7, main fuel tank; 8, base ejector rod; 9, lifting ejector rod; 1001, slow-return fuel tank; 1002, slow-return ejector rod; 1003, large-hole baffle; 1004, small-hole baffle; 11, ejector rod support; 12, ejector rod head; 1301, hydraulic cylinder; 1302, wheel top pillar 1; 1303, wheel top pillar 2; 1304, footrest; 1305, wheel top gasket; 1306, wheel axle pin; 1307, wheel cross shaft; 1308, wheel axle bracket; 1309, wheel. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-8, a power maintenance auxiliary device that is convenient for adjustment, including a chassis 1. A circular pillar 4 is fixedly installed on the top of the chassis 1. An upper base 2 is slidably installed on the circumferential surface of the circular pillar 4. A fence support 3 is fixedly installed on the top of the upper base 2. A railing 6 is fixedly connected between the fence supports 3. A main fuel tank 7 is fixedly installed at the front and rear of the chassis 1. A lifting jack 9 is fixedly installed on the top of the chassis 1. The output end of the lifting jack 9 is fixedly installed with a jack head 12. A jack support 11 is slidably installed on the top of the chassis 1. A base jack 8 is rotatably installed at the front of the jack support 11. One end of the base jack 8 away from the jack support 11 is rotatably installed at the bottom of the upper base 2. A fall prevention device is arranged on the top of the chassis 1. The fall prevention device includes a slow return fuel tank 1001, a slow return jack 1002, a large hole baffle 1003 and a small hole baffle 1004. The slow return fuel tank 1001 is fixedly installed on the top of the lifting jack 9. The large hole baffle 1003 is fixedly installed at the rear of the inner wall of the slow return fuel tank 1001. The small hole baffle 1004 is rotatably installed on the top of the large hole baffle 1003. The slow return jack 1002 is slidably installed inside the slow return fuel tank 1001. One end of the slow return jack 1002 away from the large hole baffle 1003 is fixedly connected to the jack support 11. The small hole baffle 1004 in the slow return fuel tank will limit the flow rate and velocity of the hydraulic oil when it flows back. When the hydraulic oil inside it flows forward, that is, to the front, the hydraulic oil pushes open the small hole baffle 1004 and flows out from the opening of the large hole baffle 1003, preventing the upper base from falling rapidly due to unexpected situations during the operation of the device. At the same time, the large hole baffle 1003 inside the slow return fuel tank enables the device to rise at the normal speed during work while achieving fall prevention, ensuring the safety of construction workers during the construction process.

[0021] A support device is arranged on the top of the chassis 1. The support device includes a hydraulic cylinder 1301, a wheel top column one 1302, a wheel top column two 1303, a footrest 1304 and a wheel top gasket 1305. The hydraulic cylinder 1301 is fixedly installed on the top of the chassis 1. The wheel top column one 1302 is slidably installed at the bottom of the hydraulic cylinder 1301. The wheel top gasket 1305 is fixedly installed at the bottom of the wheel top column one 1302. The wheel top column two 1303 is slidably installed on the side of the hydraulic cylinder 1301. The footrest 1304 is fixedly installed at the bottom of the wheel top column two 1303. Before the device enters the working state, while the wheel 1309 is retracted into the chassis 1, the circumferential surface of the wheel 1309 contacts and presses the wheel top gasket 1305 to make it move upward. The movement of the wheel top gasket 1305 drives the wheel top column one 1302 to press the hydraulic oil inside the hydraulic cylinder 1301. The hydraulic oil then presses the wheel top column two 1303 and makes it extend, so that when the wheel 1309 is retracted into the chassis 1, the footrest 1304 is extended and contacts the ground, increasing the overall contact area of the device with the ground and improving the overall stability of the device.

[0022] The supporting device further includes a wheel axle pin 1306, a wheel cross axle 1307, a wheel axle bracket 1308 and a wheel 1309. The wheel axle pin 1306 is fixedly installed at the bottom of the ejector rod head 12. The wheel axle bracket 1308 is rotatably installed at the bottom of the chassis 1. The wheel cross axle 1307 is rotatably installed inside the wheel axle bracket 1308. The wheel 1309 is fixedly installed on the side surface of the wheel cross axle 1307. When the ejector rod head 12 drives the wheel axle pin 1306 to move, the wheel cross axle 1307 of the device disengages from the wheel axle pin 1306 and moves upward under the guidance of the wheel axle bracket 1308. At the same time, the wheel cross axle 1307 drives the wheel 1309 to move upward together, that is, the wheel 1309 is retracted into the chassis 1 before the device enters the working state, avoiding unnecessary shaking during the working process.

[0023] A door locking device is arranged on the top of the chassis 1. A rotatable support column 501 is rotatably installed on the top of the chassis 1. A rotating door 507 is rotatably installed on the top of the upper base 2. A thin steel wire rope 503 is fixedly connected to the top of the wheel top gasket 1305. One end of the thin steel wire rope 503 away from the wheel top gasket 1305 is fixedly connected to the circumferential surface of the rotatable support column 501. An L-shaped groove 504 is formed at the top of the circumferential surface of the rotatable support column 501. A convex block 502 is sleeved on the top of the circumferential surface of the rotatable support column 501. A bolt 505 is slidably installed at the front part of the fence bracket 3. A bolt groove 506 is fixedly installed at the front part of the rotating door 507. When the wheel top gasket 1305 moves upward, it drives the rotatable support column 501 to rotate by pulling the thin steel wire rope 503. The rotation of the rotatable support column 501 drives the convex block 502 to squeeze the bolt into the bolt groove, and the rotating door is locked once the upper bottom plate starts to rise through the door locking device, preventing potential safety hazards caused by construction workers' negligence.

[0024] A spring is arranged between the wheel top gasket 1305 and the hydraulic cylinder 1301. A return spring is arranged between the bolt 505 and the fence bracket 3. A volute spring is arranged between the rotating door 507 and the upper base 2. The return spring can reset the bolt 505 when it is not squeezed, so as to disengage from the bolt groove, enabling the door locking device to release the limit under special circumstances.

[0025] The convex block 502 can slide along the L-shaped groove 504. A chute is formed at the bottom of the chassis 1. A limit block is fixedly installed on the top of the chassis 1. The limit block contacts the ejector rod support 11. The limit block can perform multiple steps separately, that is, after the wheel 1309 is completely retracted into the chassis 1, the ejector rod head 12 contacts the rear part of the ejector rod support 11 and pushes it to move, preventing the device from being unstable due to multiple steps being carried out simultaneously.

[0026] An arc-shaped groove is formed at the bottom of the wheel axle pin 1306. The circumferential surface of the wheel cross axle 1307 contacts the arc surface of the arc-shaped groove. The contact between the arc surface of the arc-shaped groove and the circumferential surface of the wheel cross axle 1307 can make the rotation of the wheel cross axle 1307 more stable during the movement of the device.

[0027] The circumferential surface of the wheel 1309 contacts the bottom of the wheel top gasket 1305, and the front end of the axle pin 1306 is provided with a bevel, which can make the process of the wheel transverse axis 1307 and the wheel 1309 retracting into the chassis 1 smoother, thereby avoiding internal vibration during the operation of the device.

[0028] During work: When preparing for construction, after the construction personnel push open the rotating door 507 and enter the working area, the rotating door 507 is reset under the rebound force of the scroll spring and the rotating door 507 is closed. Start the lifting push rod 9 to extend it, and the extension of the lifting push rod 9 drives the push rod head 12 to move forward. The movement of the push rod head 12 drives the wheel axle pin 1306 to move forward. The movement of the wheel axle pin 1306 causes the arc groove at its bottom to disengage from the circumferential surface of the wheel transverse axis 1307. When the wheel axle pin 1306 moves forward further, the wheel transverse axis 1307 disengages from the wheel axle pin 1306 as a whole. After the wheel transverse axis 1307 loses the contact support of the wheel axle pin 1306, the device as a whole moves linearly downward under the action of gravity. The movement of the device as a whole causes the wheel transverse axis 1307 to drive the wheel 1309 to move linearly upward relative to the device as a whole. The movement of the wheel transverse axis 1307 drives the wheel axle bracket 1308 to rotate upward, thereby achieving the retraction of the wheel 1309 into the interior of the chassis 1 after the device enters the working state, avoiding the shaking of the device in the working state and improving the overall stability of the device.

[0029] During the upward movement of wheel 1309, it contacts with wheel top gasket 1305 and drives it to move upward. When wheel top gasket 1305 moves upward, it drives wheel top column 1 1302 to move upward. The upward movement of wheel top column 1 1302 squeezes the hydraulic oil in hydraulic cylinder 1301, thereby pushing wheel top column 2 1303 to move downward through the pressure of the hydraulic oil. The movement of wheel top column 2 1303 drives tripod 1304 to move downward and makes its bottom contact with the ground, thereby increasing the contact area between the entire device and the ground, further improving the overall stability of the device, and ensuring the safety of construction workers during the construction process.

[0030] When the wheel top gasket 1305 moves upward, it drives the thin steel wire rope 503 to move upward together. The movement of the thin steel wire rope 503 drives the rotatable pillar 501 to rotate. The rotation of the rotatable pillar 501 drives the protrusion 502 to rotate together. The rotation of the protrusion 502 contacts and squeezes the latch 505 to make it move in the direction of the pin groove 506 and insert it into the pin groove 506. Once the device enters the working state, the rotating door 507 is locked, preventing construction personnel from causing safety hazards due to negligence. If an emergency situation occurs and the locked state of the rotating door 507 needs to be released, the construction personnel only need to lift the protrusion 502 upward, and after lifting, rotate the protrusion 502 along the L-shaped groove 504 to reset the latch 505 to release the locked state, thereby avoiding the construction personnel in an emergency situation from delaying rescue due to the inability to release the locked state of the rotating door 507, thereby improving the safety of the construction personnel.

[0031] As the push rod head 12 continues to move forward, it contacts the rear part of the push rod support 11, causing it to break away from the contact with the limit block and move forward together. The forward movement of the push rod support 11 drives the bottom of the base push rod 8 to move forward. The movement of the bottom of the base push rod 8 drives the top of the base push rod 8 to move forward together. However, since the top of the base push rod 8 and the upper base 2 are rotatably mounted rather than slidably mounted, the top of the base push rod 8 rotates. The rotation of the base push rod 8 increases the angle between it and the chassis 1, thereby increasing the straight-line distance of the base push rod 8 in the vertical direction, so that the movement of the base push rod 8 drives the upper base 2 to move upward.

[0032] If an emergency occurs, such as the sudden break of the circular support 4, the upper base 2 will drop rapidly, thereby driving the push rod support 11 to move backward. The movement of the push rod support 11 drives the slow return push rod 1002 to move backward. The movement of the slow return push rod 1002 will squeeze the hydraulic oil in the slow return oil tank 1001, so that the hydraulic oil squeezes the small hole baffle 1004 to rotate and fit closely with the large hole baffle 1003, reducing the flow of hydraulic oil through the baffle, thereby slowing down the movement speed of the slow return push rod 1002, preventing the upper base 2 from falling down suddenly and quickly in an emergency, and ensuring the safety of construction workers in any situation. When the upper base 2 needs to rise, that is, the slow return push rod 1002 needs to move forward, the hydraulic oil in the main oil tank 7 will push the small hole baffle 1004 to rotate when passing through the baffle, so that it is out of contact with the large hole baffle 1003, increasing the flow of hydraulic oil through the baffle, so that the anti-fall device can achieve slow return without affecting the rising movement of the upper base 2 under normal circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for power maintenance that is easy to adjust, comprising a chassis (1), characterized in that: At the top of the chassis (1), a circular pillar (4) is fixedly installed. On the circumferential surface of the circular pillar (4), an upper base (2) is slidably installed. At the top of the upper base (2), a fence support (3) is fixedly installed. Between the fence supports (3), a railing (6) is fixedly connected. At the front and rear of the chassis (1), a main fuel tank (7) is fixedly installed. At the top of the chassis (1), a lifting jack (9) is fixedly installed. At the output end of the lifting jack (9), a jack head (12) is fixedly installed. On the top of the chassis (1), a jack support (11) is slidably installed. At the front of the jack support (11), a base jack (8) is rotatably installed. The end of the base jack (8) far from the jack support (11) is rotatably installed at the bottom of the upper base (2). At the top of the chassis (1), a fall prevention device is provided. The fall prevention device includes a slow return fuel tank (1001), a slow return jack (1002), a large hole baffle (1003), and a small hole baffle (1004). The slow return fuel tank (1001) is fixedly installed at the top of the lifting jack (9). The large hole baffle (1003) is fixedly installed at the rear of the inner wall of the slow return fuel tank (1001). The small hole baffle (1004) is rotatably installed at the top of the large hole baffle (1003). The slow return jack (1002) is slidably installed inside the slow return fuel tank (1001). The end of the slow return jack (1002) far from the large hole baffle (1003) is fixedly connected to the jack support (11).

2. The auxiliary device for power maintenance that is convenient to adjust according to claim 1, characterized in that: At the top of the chassis (1), a support device is provided. The support device includes a hydraulic cylinder (1301), a wheel top column one (1302), a wheel top column two (1303), a footrest (1304), and a wheel top gasket (1305). The hydraulic cylinder (1301) is fixedly installed at the top of the chassis (1). The wheel top column one (1302) is slidably installed at the bottom of the hydraulic cylinder (1301). The wheel top gasket (1305) is fixedly installed at the bottom of the wheel top column one (1302). The wheel top column two (1303) is slidably installed at the side of the hydraulic cylinder (1301). The footrest (1304) is fixedly installed at the bottom of the wheel top column two (1303).

3. An auxiliary device for power maintenance that is easy to adjust according to claim 2, characterized in that: The support device further includes a wheel axle pin (1306), a wheel cross shaft (1307), a wheel axle bracket (1308), and a wheel (1309). The wheel axle pin (1306) is fixedly installed at the bottom of the jack head (12). The wheel axle bracket (1308) is rotatably installed at the bottom of the chassis (1). The wheel cross shaft (1307) is rotatably installed inside the wheel axle bracket (1308). The wheel (1309) is fixedly installed at the side of the wheel cross shaft (1307).

4. An auxiliary device for power maintenance that is easy to adjust according to claim 3, characterized in that: A door locking device is provided at the top of the chassis (1). A rotatable support column (501) is rotatably installed at the top of the chassis (1). A rotating door (507) is rotatably installed at the top of the upper base (2). A thin steel wire rope (503) is fixedly connected to the top of the wheel top gasket (1305). One end of the thin steel wire rope (503) away from the wheel top gasket (1305) is fixedly connected to the circumferential surface of the rotatable support column (501). An L-shaped groove (504) is formed at the top of the circumferential surface of the rotatable support column (501). A convex block (502) is sleeved on the top of the circumferential surface of the rotatable support column (501). A bolt (505) is slidably installed at the front part of the fence support (3). A bolt groove (506) is fixedly installed at the front part of the rotating door (507).

5. An auxiliary device for power maintenance that is easy to adjust according to claim 4, characterized in that: A spring is provided between the wheel top gasket (1305) and the hydraulic cylinder (1301). A return spring is provided between the bolt (505) and the fence support (3). A volute spring is provided between the rotating door (507) and the upper base (2).

6. An auxiliary device for power maintenance that is easy to adjust according to claim 5, characterized in that: The convex block (502) can slide along the L-shaped groove (504). A chute is formed at the bottom of the chassis (1). A limit block is fixedly installed at the top of the chassis (1). The limit block contacts the top rod support (11).

7. An auxiliary device for power maintenance that is easy to adjust according to claim 6, characterized in that: An arc-shaped groove is formed at the bottom of the wheel axle pin (1306). The circumferential surface of the wheel cross shaft (1307) contacts the arc surface of the arc-shaped groove.

8. An auxiliary device for power maintenance that is easy to adjust according to claim 7, characterized in that: The circumferential surface of the wheel (1309) contacts the bottom of the wheel top gasket (1305). A bevel is provided at the front end of the wheel axle pin (1306).

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