CN104891397A - Lifting type electric power maintenance system capable of surrounding object to be repaired - Google Patents

Abstract

The invention discloses a lifting type electric power maintenance system capable of surrounding an object to be repaired. The system comprises a lifting bracket, and a maintenance bracket arranged on the lifting bracket, wherein a maintenance platform has a working opening in the bottom for surrounding the object to be repaired; an openable moving plate is arranged at the end part of the lifting platform, and is near the working opening; and the moving plate is opened to form a maintenance sleeve port communicated with the working opening.

Description

Elevating power maintenance system capable of enclosing objects to be repaired

technical field

The invention relates to an elevating electric power maintenance system capable of enclosing objects to be repaired.

Background technique

The power industry generally uses ladders when performing maintenance work on high maintenance points. For safety reasons, it is best to need another person to support the ladder. Poor reliability. In addition, when multiple people are required to cooperate for maintenance, the space on the ladder is limited and multiple people cannot stand. Distribution overhead lines are prone to faults in rainy days, and line faults affect the daily power consumption of users. Therefore, power maintenance personnel need to be ready to repair the faulty line at all times, especially in rainy days. Due to the wet and slippery body of the support column in rainy days, it is difficult for emergency repair personnel to use traditional tools such as foot buckles to climb the pole, and it is also difficult to deal with power line failures. Due to the wet and slippery reason of the support column in rainy days, it hinders the work of emergency repair personnel to repair the faulty line in time, prolongs the recovery time of the power of the faulty line section and the power outage time of the non-line faulty section, and reduces the reliability of the line power supply.

Contents of the invention

In view of the above problems, the present invention provides an elevating power maintenance system capable of enclosing objects to be repaired.

In order to achieve the above purpose, the present invention can surround the lifting type electric maintenance system of the object to be repaired, including the lifting bracket and the maintenance bracket arranged on the lifting bracket; wherein

The maintenance bracket includes a support column, a first fixing piece, a second fixing piece arranged on the support column at intervals up and down, and a maintenance platform, the first end of the maintenance platform is arranged on the first fixing piece ; also includes connecting the maintenance platform and the second fixing part reinforcement bracket, the first end of the reinforcement bracket is connected to the second fixing part, and the second end of the reinforcement bracket is connected to the maintenance platform The second end far away from the support column; the maintenance platform has a bottom with a working opening surrounding the object to be maintained, and the end of the lifting platform has a movable plate that can be opened, and the movable plate is connected to the working opening. Adjacent to the arrangement, the movable plate is opened to form a maintenance socket communicated with the working opening;

The lifting support includes a horizontally arranged base plate and a top plate directly above the base plate, the support columns are arranged on the top plate, rollers and supporting hydraulic cylinders located outside the rollers are arranged around the lower surface of the base plate, each supporting hydraulic pressure The lower end of the cylinder is equipped with a supporting plate, the bottom plate is equipped with a lifting hydraulic cylinder and lower brackets located on the front and rear sides of the lifting hydraulic cylinder, the lower surface of the top plate is equipped with an upper bracket corresponding to the upper and lower sides of the lower bracket, and the upper bracket and the lower bracket. There is a telescopic mechanism with the same structure on the front side and the rear side, and the two telescopic mechanisms are connected by a horizontal rod. The upper end of the piston rod of the lifting hydraulic cylinder is vertically fixedly connected to the lower side of the midpoint of the horizontal rod;

Each of the telescopic mechanisms includes six connecting rods that are arranged obliquely, wherein the upper ends of the upper two connecting rods are respectively hinged with the left and right sides of the upper bracket, and the upper ends of the lower two connecting rods are respectively connected with the left and right sides of the lower bracket. Hinged, the middle two-section connecting rod is respectively hinged with the upper two-section connecting rod and the lower two-section connecting rod, between the upper two-section connecting rod, between the middle two-section connecting rod and the lower two-section connecting rod Both ends are hinged by a pin shaft; both ends of the horizontal rod are respectively coaxially fixedly connected with the pin shafts at the uppermost ends of the two telescopic mechanisms.

Further, the working opening is rectangular, the movable plate is two pieces, butted together, one end of the two movable plates is hinged on the lifting platform through a hinge shaft, and the setting direction of the hinge shaft is the same as that of the The length direction of the lifting platform is consistent, the other end of the movable plate is connected to each other through a bolt, the bolt is arranged above the lifting platform, and the other end of the movable plate is connected to each other through two bolts, The two bolts are respectively located on two sides of the movable plate.

Further, the reinforcement bracket includes:

first rods, the second ends of the two first rods are reversibly connected to the second ends of the maintenance platform, and the first ends of the first rods are connected to the second fixing member Above: the second rod is connected between the two first rods, and a plurality of the second rods are arranged horizontally at intervals along the length direction of the first rods.

Further, a guardrail is detachably provided on the maintenance platform, and the height of the guardrail column on the side close to the support column of the guardrail is higher than the height of the guardrail column on the side away from the support column, and the height of the guardrail column near the support column is A diagonal bar is arranged between the upper end of the guardrail column on the side of the support column and the upper end of the guardrail column on the side away from the support column; a fixing frame is provided on the side of the guardrail close to the support column The first end of the fixing frame is detachably connected to the guardrail, and the second end of the fixing frame is reversibly connected to the first end of the maintenance platform close to the support column.

Further, the maintenance platform is provided with a lifting platform, the lifting platform can slide up and down along the guardrail column, the guardrail column is provided with a guide groove, and the lifting platform is slidably arranged up and down along the guide groove , the guide groove is provided with limit pin holes along the longitudinal direction.

It also includes a manipulating device for controlling the movement of the lifting platform, pulleys are arranged on the guardrail, and a rope is fixedly connected to the manipulating device, and the rope is connected to the lifting platform after passing through the pulley.

Further, the operating device includes an operating rod located at the bottom of the maintenance platform.

Further, the first fixing part and the second fixing part are detachably arranged on the support column, the maintenance platform is detachably connected to the first fixing part horizontally, and the reinforcement bracket The first end is detachably connected to the second fixing member, and the second end of the reinforcing bracket is reversibly connected to the second end of the maintenance platform.

Further, it also includes an emergency power supply device arranged at the top of the support column, wherein

The emergency power supply device includes a light bulb and a built-in circuit board, and the built-in circuit board is provided with a power supply circuit, a light control circuit, an external control circuit, a remote control circuit, a fault indication circuit and a battery charging circuit; , an external control circuit, and a battery charging circuit; the lamp control circuit is connected with an external control circuit and a light bulb; the fault indication circuit is connected with a lamp control circuit and an external control circuit; the battery charging circuit is provided with battery, and is connected with the light control circuit; the remote control circuit is mainly composed of intermediate relay K2, capacitor C, pulse signal switch KM, pulse signal generator MC and remote signal receiver RF; the intermediate relay K2 The switch contact end is connected in series on the external control circuit; the coil end of the intermediate relay K2, the capacitor C, and the switch end of the pulse signal switch KM are connected in series successively to form a loop; the control end of the pulse signal switch KM is connected to the pulse signal The pulse signal output terminals of the generator MC are connected; the pulse signal generator MC is connected with the remote signal receiver RF.

Further, both ends of the capacitor C of the remote control circuit are also connected to the power circuit, the capacitor C of the remote control circuit is replaced with a storage battery or a dry battery or a lithium battery, and the battery of the battery charging circuit is nickel-cadmium rechargeable battery.

Beneficial effect:

Compared with the prior art, the present invention has the following beneficial effects:

The invention has the advantages of reasonable design, simple and convenient operation, high degree of automation, safety and reliability, and can provide a platform for multiple people to work at the same time. In the present invention, the bottom of the maintenance platform has a working opening surrounding the object to be maintained, and the end of the maintenance platform has an openable movable plate. The movable plate is adjacent to the working opening. After the movable plate is opened, a maintenance sleeve connected to the working opening is formed; The maintenance platform surrounds the object to be maintained from one end of the maintenance platform through the maintenance sleeve, so this kind of maintenance platform can conveniently surround the object to be maintained, which is beneficial to provide maintenance personnel with a more convenient maintenance position, and overcomes the limitations of existing electric maintenance vehicles. The maintenance platform does not have a maintenance sleeve, which is not conducive to providing maintenance personnel with a more convenient maintenance location, etc., thereby achieving the effects of convenient maintenance and improved efficiency.

Description of drawings

Fig. 1 is a schematic structural diagram of an elevating power maintenance system capable of surrounding objects to be repaired according to Embodiment 1 of the present invention;

Fig. 2 is a top view structure of the maintenance platform in Embodiment 1 of the present invention, the movable plate is in a closed state;

Fig. 3 is a side view structure of a movable panel of the maintenance platform in Embodiment 1 of the present invention;

Fig. 4 is a side view structure of another movable panel of the maintenance platform in Embodiment 1 of the present invention;

Fig. 5 is a schematic structural diagram of an elevating power maintenance system capable of surrounding objects to be repaired according to Embodiment 2 of the present invention;

6 is a schematic structural view of an emergency power supply device according to Embodiment 3 of the present invention;

Fig. 7 is a schematic side view of the maintenance bracket of various embodiments of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Example 1

As shown in Figures 1 to 4, this embodiment can surround the lifting type power maintenance system of the object to be repaired, including the lifting bracket and the maintenance bracket arranged on the lifting bracket;

The maintenance bracket includes a first fixing part 10 , a second fixing part 20 , a maintenance platform 30 and a reinforcement bracket 40 . Wherein, the first fixing part 10 and the second fixing part 20 are arranged on the supporting column, and are arranged at intervals up and down; the first end of the maintenance platform 30 is arranged on the first fixing part 10; the first end of the reinforcing bracket 40 is connected to On the second fixing member 20 , the second end of the reinforcement bracket 40 is connected to the second end of the maintenance platform 30 , and the second end of the maintenance platform 30 is far away from the support column. The maintenance platform 30 has the working opening 301 that surrounds the object to be maintained at the bottom, and the end of the maintenance platform 30 has a movable plate 302 that can be opened, and the movable plate 302 is adjacent to the working opening 301. A connected maintenance socket; the maintenance platform surrounds the object to be maintained from one end of the maintenance platform through the maintenance socket.

Described elevating support comprises the base plate 21 that is arranged horizontally and is located at the top plate 28 directly above base plate 21, and base plate 21 lower surface all is provided with roller (not shown in the figure) and the support hydraulic cylinder 24 that is positioned at the outside of roller, each supports Hydraulic cylinder 24 lower ends are all provided with support plate, base plate 21 is provided with lifting hydraulic cylinder 26 and is positioned at the lower support of lifting hydraulic cylinder 26 both sides, the top plate lower surface is provided with the upper support that is arranged up and down correspondingly with lower support, and upper support and The front side and the rear side between the lower brackets are all provided with a telescopic mechanism with the same structure, and a horizontal bar is passed between the two telescopic mechanisms (because the front side or the rear side of the present invention is only indicated in the figure, the horizontal bar Not shown in the figure) is connected, and the piston rod 27 upper end of lifting hydraulic cylinder 26 is vertically fixedly connected with the lower side of the horizontal rod midpoint.

Each telescoping mechanism includes six connecting rods 22 that are all inclined. The upper ends of the upper two connecting rods are respectively hinged with the left and right sides of the upper bracket, and the upper ends of the lower two connecting rods are respectively hinged with the left and right sides of the lower bracket. , the middle two connecting rods are respectively hinged with the upper two connecting rods and the lower two connecting rods, the upper two connecting rods, the middle two connecting rods and the lower two connecting rods All are hinged by a pin shaft 25.

The two ends of the horizontal bar are respectively coaxially fixedly connected with the uppermost pin shafts of the two telescopic mechanisms.

Because the maintenance platform has a working opening surrounding the object to be maintained at the bottom, the end of the maintenance platform has an openable movable plate, which is adjacent to the working opening, and the movable plate is opened to form a maintenance sleeve connected to the working opening; maintenance The platform surrounds the object to be maintained from one end of the maintenance platform through the maintenance sleeve, so this kind of maintenance platform can conveniently surround the object to be maintained, which is beneficial to provide maintenance personnel with a more convenient maintenance position, and overcomes the maintenance problems of existing electric maintenance vehicles. The platform does not have a maintenance sleeve, which is not conducive to providing maintenance personnel with a more convenient maintenance position, thereby achieving the effects of convenient maintenance and improved efficiency.

Preferably, the working opening 301 is rectangular, which is convenient for processing and connection with the movable plate. The size of the working opening 301 can be designed as required to meet the needs of different maintenance objects.

Preferably, the movable plate 302 is two pieces, butted together. In this way, it is easy to install and connect.

Preferably, one ends of the two movable panels 302 are hinged on the maintenance platform 30 , for example, the ends of the two movable panels 302 are hinged on the maintenance platform 30 through hinge shafts.

Preferably, the setting direction of the hinge shaft 302 is consistent with the length direction of the maintenance platform 30, so that the direction of the maintenance socket and the optimal position of the movable plate rotation can be guaranteed.

Preferably, the other end of the movable plate is connected to each other through a bolt 303 , for example, it may be screwed, clamped or pinned. In this way, it is convenient to disassemble and assemble.

Preferably, the bolt 303 is arranged above the maintenance platform 30 , so that it is convenient to connect or disconnect the movable plate 302 on the working surface.

In this embodiment, when working, use a transport vehicle to transport the present invention to the maintenance point. There are hydraulic stations on the transport vehicle that supply oil to the support hydraulic cylinder and the lifting hydraulic cylinder respectively. After the present invention is removed from the vehicle, it is pushed to a suitable position. , control the supporting hydraulic cylinder to lift the roller off the ground, the supporting plate at the lower end of the four supporting hydraulic cylinders is supported on the ground, then the maintenance worker goes up to the top plate, controls the piston rod of the lifting hydraulic cylinder to elongate, and drives the lifting rod of the telescopic mechanism through the horizontal rod The upward extension allows safe and reliable maintenance work on the platform.

The support hydraulic cylinder can not only improve the function of supporting weight, but also play a stabilizing role to prevent sideways movement.

The telescopic mechanism adopts the structure of folding connecting rods, which not only has strong stability, but also does not take up space when shrinking.

Example 2

As shown in FIG. 5 , on the basis of Embodiment 1, this embodiment further improves the maintenance bracket. Both the first fixing part 10 and the second fixing part 20 are arranged on the support column, and are detachably arranged on the support column according to the needs in actual operation. The maintenance platform 30 can also be detachably connected to the first fixing member 10 according to actual operation needs, and the maintenance platform 30 is in a horizontal position.

Preferably, the first end of the reinforcing bracket 40 is connected to the second fixing member 20 and is detachable. The second end of the reinforcing bracket 40 is connected to the second end of the maintenance platform 30, the second end of the maintenance platform 30 is away from the support column, and the second end of the reinforcing bracket 40 can be turned over on the second end of the maintenance platform 30, so that the turning reinforcement The support 40 makes it lean against the maintenance platform 30, which reduces the space volume of the disassembled lift-type power maintenance system that can surround the object to be repaired, and is more convenient for transportation.

Preferably, guardrails 31 are provided around the maintenance platform 30 , so as to protect emergency repair personnel standing on the maintenance platform 30 . The guardrail 31 includes guardrail posts 311. The heights of the guardrail posts 311 are not equal. Because the heights of the guardrail columns 311 on different sides are not equal, the stability of the guardrail 31 is not good enough. In order to solve this problem, a diagonal bar is arranged between the guardrail 31 on the side near the support column and the guardrail 31 on the side away from the support column. , This improves the strength of the guardrail 31, making the guardrail 31 more stable.

Since the guardrail column 311 on the side close to the support column is relatively high, the stability of the guardrail 31 on the maintenance platform 30 is affected. In order to improve the stability of the guardrail 31 on the maintenance platform 30, a fixed mount 312 is provided on the side near the support column of the guardrail 31, and the first end of the fixed mount 312 is connected on the guardrail 31, and the connecting structure here is detachable The second end of the fixing frame 312 is connected to the maintenance platform 30, and the fixing frame 312 connected to the maintenance platform 30 can be turned over. The fixing frame 312 arranged in this way can lean against the maintenance platform 30 after being disassembled, reducing the volume of transportation.

Since the wires of the overhead line are of different heights, there will be a problem that repair personnel need to adjust the standing height when standing on the repair platform 30 for repair work. In order to solve the problem of height adjustment, a lifting platform 32 is provided on the maintenance platform 30, and the lifting platform 32 can slide up and down along the guardrail post 311.

Guardrail column 311 is provided with guide groove 313, and guide groove 313 can guide for lifting platform 32, does not allow lifting platform 32 to deviate from the correct position in the sliding process, so lifting platform 32 is slidably arranged up and down along guide groove 313. When the lifting table 32 slides to a certain position, in order to make the lifting table 32 be accurately and stably fixed at this position, a limit pin hole 314 is provided in the longitudinal direction of the guide groove 313 . Emergency repair personnel insert pins in the limit pin holes 314, and the lifting platform 32 can be supported to keep the lifting platform 32 stable.

Preferably, the elevating power maintenance system capable of enclosing objects to be repaired further includes a manipulating device 33 , and emergency repair personnel can conveniently control the up and down movement of the elevating platform 32 by using the manipulating device 33 . A pulley 315 is arranged on the guardrail 31 , and a rope is fixedly connected to the manipulation device 33 . The rope is wound around the pulley 315 and finally connected to the lifting platform 32 . The emergency repair personnel operate the manipulation device 33 to move the lifting table 32 up or down by retracting and retracting the ropes. The traction force of the manipulating device 33 can be provided by external machinery, such as a diesel engine, or can be manually operated by manpower. Preferably, the manual control operation mode is adopted in the environment of rainy weather. Thus, the manipulating means 33 comprise a manually controlled rocker arranged at the bottom of the maintenance platform 30 . The emergency repair personnel shake the rocking bar and just can retract the rope, realize the lifting function of the lifting platform 32. Like this, the operator stands on the lifting platform 32, just can rise and fall along with lifting platform 32, just can adapt to the height requirement of the overhead lines of different heights.

A triangular structure is formed between the maintenance platform, the reinforcement bracket and the support column. Using the stability of the triangle, when the emergency repair personnel board the maintenance platform, the emergency repair personnel stand on the end of the maintenance platform away from the support column, that is, At one corner of the formed triangle, due to the gravity of the emergency repair personnel, the maintenance platform and the supporting column work together to generate a pulling force along the length of the maintenance platform. At the same time, the reinforcement bracket will also generate a supporting force along its length. The three forces interact to reach equilibrium. In this way, regardless of whether the support column is wet or slippery in rainy days, it can stably support the emergency repair personnel standing on the maintenance platform, so the emergency repair personnel can successfully climb the pole in rainy days, and carry out electric emergency repair work in time, so that the power failure line can be restored in time .

Example 3

As shown in Figure 6, on the basis of Embodiment 2, this embodiment further includes an emergency power supply device arranged at the top of the support column, wherein

The emergency power supply device includes a light bulb and a built-in circuit board, and the built-in circuit board is provided with a power supply circuit, a light control circuit, an external control circuit, a remote control circuit, a fault indication circuit and a battery charging circuit; , an external control circuit, and a battery charging circuit; the lamp control circuit is connected with an external control circuit and a light bulb; the fault indication circuit is connected with a lamp control circuit and an external control circuit; the battery charging circuit is provided with battery, and is connected with the light control circuit; the remote control circuit is mainly composed of intermediate relay K2, capacitor C, pulse signal switch KM, pulse signal generator MC and remote signal receiver RF; the intermediate relay K2 The switch contact end is connected in series on the external control circuit; the coil end of the intermediate relay K2, the capacitor C, and the switch end of the pulse signal switch KM are connected in series successively to form a loop; the control end of the pulse signal switch KM is connected to the pulse signal The pulse signal output terminals of the generator MC are connected; the pulse signal generator MC is connected with the remote signal receiver RF.

Further, both ends of the capacitor C of the remote control circuit are also connected to the power circuit, the capacitor C of the remote control circuit is replaced with a storage battery or a dry battery or a lithium battery, and the battery of the battery charging circuit is nickel-cadmium rechargeable battery.

As shown in Figure 7, in each of the above-mentioned embodiments, in order to enable emergency repair personnel to smoothly board the lifting type power maintenance system that can surround the object to be repaired, a reinforcement bracket 40 is provided between the support column and the middle platform, and the reinforcement bracket 40 includes a first rod 41 and a second rod 42 . The first ends of the two first rods 41 are connected to the second fixing member 20; the second ends of the two first rods 41 are connected to the second end of the maintenance platform 30, that is, the maintenance platform 30 is far away from the support column. One end, and the two first rods 41 can be turned over, so that when the lifting type power maintenance system that can surround the object to be repaired is disassembled and transported, the two first rods 41 are turned over, so that the two first rods The part 41 leans against the maintenance platform 30, reducing the space volume of the power maintenance platform. The second rod 42 is connected between the two first rods 41 . A plurality of second rods 42 are sequentially arranged between the two first rods 41 , thus forming a ladder, which is convenient for repair personnel to climb onto the maintenance platform 30 . At the same time, the second rod 42 also has the function of reinforcing the reinforcement bracket 40 , which increases the strength of the reinforcement bracket 40 and improves the weight bearing capacity of the reinforcement bracket 40 .

The above are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention are all Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be defined by the claims.

Claims (10)

1. A lifting type power maintenance system capable of surrounding objects to be repaired, characterized in that it includes a lifting bracket and a maintenance bracket arranged on the lifting bracket; wherein, The maintenance bracket includes a support column, a first fixing piece, a second fixing piece arranged on the support column at intervals up and down, and a maintenance platform, the first end of the maintenance platform is arranged on the first fixing piece ; also includes connecting the maintenance platform and the second fixing part reinforcement bracket, the first end of the reinforcement bracket is connected to the second fixing part, and the second end of the reinforcement bracket is connected to the maintenance platform The second end far away from the support column; the maintenance platform has a bottom with a working opening surrounding the object to be maintained, and the end of the lifting platform has a movable plate that can be opened, and the movable plate is connected to the working opening. Adjacent to the arrangement, the movable plate is opened to form a maintenance socket communicated with the working opening; The lifting support includes a horizontally arranged base plate and a top plate directly above the base plate, the support columns are arranged on the top plate, rollers and supporting hydraulic cylinders located outside the rollers are arranged around the lower surface of the base plate, each supporting hydraulic pressure The lower end of the cylinder is equipped with a supporting plate, the bottom plate is equipped with a lifting hydraulic cylinder and lower brackets located on the front and rear sides of the lifting hydraulic cylinder, the lower surface of the top plate is equipped with an upper bracket corresponding to the upper and lower sides of the lower bracket, and the upper bracket and the lower bracket. There is a telescopic mechanism with the same structure on the front side and the rear side, and the two telescopic mechanisms are connected by a horizontal rod. The upper end of the piston rod of the lifting hydraulic cylinder is vertically fixedly connected to the lower side of the midpoint of the horizontal rod; Each of the telescopic mechanisms includes six connecting rods that are arranged obliquely, wherein the upper ends of the upper two connecting rods are respectively hinged with the left and right sides of the upper bracket, and the upper ends of the lower two connecting rods are respectively connected with the left and right sides of the lower bracket. Hinged, the middle two-section connecting rod is respectively hinged with the upper two-section connecting rod and the lower two-section connecting rod, between the upper two-section connecting rod, between the middle two-section connecting rod and the lower two-section connecting rod Both ends are hinged by a pin shaft; both ends of the horizontal rod are respectively coaxially fixedly connected with the pin shafts at the uppermost ends of the two telescopic mechanisms. 2. The lifting type power maintenance system capable of surrounding objects to be repaired according to claim 1, characterized in that, the working opening is rectangular, the movable plate is two pieces, butted together, and the two movable plates One end is hinged on the lifting platform through a hinge, and the setting direction of the hinge is consistent with the length direction of the lifting platform. The other end of the movable plate is connected to each other through a bolt, and the bolt is arranged at Above the lifting platform, the other end of the movable plate is connected to each other through two bolts, and the two bolts are respectively located on both sides of the movable plate. 3. The elevating electric power maintenance system capable of surrounding objects to be repaired according to claim 1, wherein the reinforcing bracket comprises: first rods, the second ends of the two first rods are reversibly connected to the second ends of the maintenance platform, and the first ends of the first rods are connected to the second fixing member Above: the second rod is connected between the two first rods, and a plurality of the second rods are arranged horizontally at intervals along the length direction of the first rods. 4. The lifting type power maintenance system capable of surrounding objects to be repaired according to claim 1, wherein a guardrail is detachably arranged on the maintenance platform, and the guardrail on the side of the guardrail close to the support column The height of the column is higher than the height of the guardrail column on the side away from the support column, and the distance between the upper end of the guardrail column on the side close to the support column and the upper end of the guardrail column on the side away from the support column A slanting bar is arranged between them; a fixing frame is arranged on the side of the guardrail close to the support column, the first end of the fixing frame is detachably connected to the guardrail, and the second end of the fixing frame can be Connected to the first end of the maintenance platform close to the support column in an inverting manner. 5. The lifting type power maintenance system capable of surrounding objects to be repaired according to claim 1, wherein a lifting platform is provided on the maintenance platform, and the lifting platform can slide up and down along the guardrail column, and the A guide groove is arranged on the guardrail column, and the lifting platform is slidably arranged up and down along the guide groove, and a limit pin hole is arranged on the guide groove along the longitudinal direction. 6. The lifting type power maintenance system capable of surrounding objects to be repaired according to claim 5, characterized in that it also includes a manipulation device for controlling the movement of the lifting platform, pulleys are arranged on the guardrail, and the manipulation device A rope is fixedly connected, and the rope is connected to the lifting platform after passing through the pulley. 7. The elevating electric maintenance system capable of enclosing objects to be repaired according to claim 6, wherein the operating device comprises an operating rod located at the bottom of the maintenance platform. 8. The lifting type power maintenance system capable of surrounding objects to be repaired according to claim 1, wherein the first fixing piece and the second fixing piece are detachably arranged on the support column, so The maintenance platform is detachably connected to the first fixing part horizontally, the first end of the reinforcement bracket is detachably connected to the second fixing part, and the second end of the reinforcement bracket is reversibly connected to the the second end of the maintenance platform. 9. The lifting type power maintenance system capable of surrounding objects to be repaired according to claim 1, further comprising an emergency power supply device arranged at the top of the support column, wherein, The emergency power supply device includes a light bulb and a built-in circuit board, and the built-in circuit board is provided with a power supply circuit, a light control circuit, an external control circuit, a remote control circuit, a fault indication circuit and a battery charging circuit; , an external control circuit, and a battery charging circuit; the lamp control circuit is connected with an external control circuit and a light bulb; the fault indication circuit is connected with a lamp control circuit and an external control circuit; the battery charging circuit is provided with battery, and is connected with the light control circuit; the remote control circuit is mainly composed of intermediate relay K2, capacitor C, pulse signal switch KM, pulse signal generator MC and remote signal receiver RF; the intermediate relay K2 The switch contact end is connected in series on the external control circuit; the coil end of the intermediate relay K2, the capacitor C, and the switch end of the pulse signal switch KM are connected in series successively to form a loop; the control end of the pulse signal switch KM is connected to the pulse signal The pulse signal output terminals of the generator MC are connected; the pulse signal generator MC is connected with the remote signal receiver RF. 10. The lifting type power maintenance system capable of surrounding objects to be repaired according to claim 9, wherein both ends of the capacitor C of the remote control circuit are also connected to the power supply circuit, and the two ends of the capacitor C of the remote control circuit Capacitor C is replaced with storage battery or dry battery or lithium battery, and the battery of described battery charging circuit is nickel-cadmium rechargeable battery.