Adjusting and fixing device for electric power overhaul operation

Abstract

The invention relates to the technical field of electric power overhaul, and particularly provides an adjusting and fixing device for electric power overhaul operation. Comprising a fixed connection module detachably fixed to a scaffold, the fixed connection module is provided with an inclined supporting module, the relative included angle of the inclined supporting module is adjustable, the inclined supporting module and the ground are used for inclined supporting, and a connecting rod module is assembled between the fixed connection module and the inclined supporting module. The mechanism provided by the invention has a retractable, adjustable and retractable fixed supporting structure adjusting function, can be suitable for reinforcing, supporting and butting of most scaffolds with height specifications, has relatively high applicability, and can be used for quick butting, quick disassembly and quick storage; besides, multiple distributed surface clamping contact is formed between the reinforcing and supporting mechanism and the scaffold, and single-point fixed connection contact in an existing inclined supporting rod structure is changed, so that the reliability and stability of connection between the reinforcing and supporting mechanism and the scaffold are greatly improved, and the safety of the scaffold construction platform is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power maintenance, and specifically proposes an adjusting and fixing device for electric power maintenance operations. Background Art

[0002] Scaffolding is a common support system used to build power maintenance construction operations. Compared with traditional wooden scaffolding, existing scaffolding is basically made of higher-strength steel and is movable, which is convenient for position adjustment and maintenance work at the power maintenance construction site. It can be used as a maintenance work platform for power workers to carry out power maintenance operations.

[0003] Figure 8 The figure shows a common mobile power maintenance scaffolding structure, which generally includes four main columns, and the bottom of the main columns are equipped with universal wheels with brakes, which are locked after moving to the target position. Most of the existing power maintenance scaffoldings of this type are integral welded bracket structures, and the power maintenance scaffoldings have different heights according to needs. In addition, a small number of power maintenance scaffoldings are designed to be height-adjustable. This type of power maintenance scaffolding is mainly in contact with the ground support through the locked universal wheels, with few contact points and small contact area. In order to further improve the construction stability and safety of the power maintenance scaffolding, this type of power maintenance scaffolding is usually fixed with a support structure for adjustment and fixation at the four main columns. The adjustable and fixed support structure of the existing power maintenance operation scaffolding is basically an inclined support rod structure connected to the power maintenance scaffolding. Although it has achieved the purpose of adjustment and reinforcement, it still has the following disadvantages: 1) The inclined support rod structure and the power maintenance scaffolding are mostly connected by a lockable hinge joint, and the connection is basically a single-point contact. The reliability and stability of the connection are poor, and there are safety hazards.

[0004] 2) This type of inclined support rod structure has limited adjustability and is generally only applicable to power maintenance scaffolding of a certain height, and cannot be adaptively adjusted and fixed according to the height of the power maintenance scaffolding. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an adjusting and fixing device for electric power maintenance operations, which is used to solve the problems mentioned in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an adjustment and fixing device for power maintenance operations, comprising a fixed connection module that can be detachably fixed on a scaffold, the fixed connection module is equipped with an inclined support module with an adjustable relative angle and used for inclined support between the ground, and a connecting rod module is installed between the fixed connection module and the inclined support module.

[0007] The fixed connection module includes a channel steel vertical rail, and a plurality of clamping sleeves for clamping and fixing with the scaffolding are distributed in the vertical direction in the groove of the channel steel vertical rail, and the channel steel vertical rail is also equipped with a driving component for driving the plurality of clamping sleeves to implement synchronous clamping; the inclined support module includes a main support column hinged on the top of the outer end surface opposite to the groove of the channel steel vertical rail, and the main support column is a tubular structure with a closed top and an open bottom, and a secondary support column for contacting with the ground support is telescopically and slidably arranged in the main support column; the connecting rod module includes a slide plate slidably installed along the length direction of the channel steel vertical rail, the slide plate is located on the opposite outer end surfaces in the groove of the channel steel vertical rail, and a positioning component for sliding locking is installed between the slide plate and the channel steel vertical rail; a plurality of telescopic connecting rod members are hinged on the slide plate along the length direction, and the plurality of telescopic connecting rod members are all hinged on the main support column.

[0008] Preferably, guide holes are horizontally opened on the side walls of both sides of the channel steel vertical rail corresponding to each clamping sleeve; the clamping sleeve includes two clamping parts that are horizontally mirror-distributed; the clamping parts are provided with clamping bayonet sockets that are in clamping contact with the scaffolding, and the clamping parts are provided with plug blocks that are horizontally slidably inserted in the corresponding guide holes on the same side.

[0009] Preferably, the clamping member is provided with an inclined surface which has an inclined angle with the insert block; the driving assembly comprises a bearing seat fixed to the bottom end of the channel steel vertical rail, a driving screw is vertically rotatably mounted on the bearing seat, a plurality of driving members which are arranged one by one corresponding to a plurality of clamping sleeves are threadedly mounted on the driving screw, the driving member is vertically slidably mounted in the groove of the channel steel vertical rail, two driving blocks which cooperate with the two clamping members in the clamping sleeves at corresponding positions are horizontally symmetrically arranged on the driving member, and a wedge-shaped surface which contacts the inclined surface is arranged at the bottom end of the driving block.

[0010] Preferably, a floor panel that is in contact with the ground support is hingedly connected to the bottom end of the secondary support column, and a torsion spring is mounted on the hinge shaft of the floor panel.

[0011] Preferably, a plurality of locking sockets distributed along the length direction of the main support column are horizontally penetrated between two opposite side walls of the main support column, and a plug rod that cooperates with a group of locking sockets at corresponding positions is horizontally slidably installed on the secondary support column, and the plug rod is removable on the secondary support column.

[0012] Preferably, the positioning assembly includes sockets symmetrically arranged on both vertical sides of the slide plate, and the two opposite outer end surfaces on the vertical rail of the channel steel are provided with plug-in plates in cooperation with the sockets on the same side, and a plurality of positioning holes are distributed on the plug-in plates in the vertical direction, and a U-shaped rod is installed between the two sockets and the plug-in plates on the same side, one end of the U-shaped rod is inserted in the socket, and the other end is inserted in one of the positioning holes, and a tension spring is horizontally connected between the two U-shaped rods; when one end of the U-shaped rod is pulled out of the positioning hole, the slide plate resumes vertical sliding.

[0013] Preferably, the telescopic connecting rod comprises a sleeve hinged on the slide and a telescopic rod slidably and telescopically arranged in the sleeve, the outer end of the telescopic rod is hinged on the main support column, the sleeve is provided with an extension hole extending along the axial direction, a screw pin is fixed vertically relative to the axial direction near the inner end of the telescopic rod, the screw pin passes through the extension hole to the outside of the sleeve, and a locking nut is threadedly installed on the screw pin.

[0014] Preferably, the horizontal cross-section of the clamping bayonet is in an arc shape, and clamping teeth are vertically distributed in the clamping bayonet.

[0015] The above technical solution has the following advantages or beneficial effects: The present invention provides an adjustment and fixing device for power maintenance operations, which has the functions of a retractable, adjustable and detachable adjustment and fixing support structure. It can be used for reinforcement and support docking of scaffoldings of most height specifications, has high applicability, and can be quickly docked, quickly disassembled and quickly stored. At the same time, it forms multiple distributed surface clamping contacts with the scaffolding, changes the single-point fixed connection contact in the existing inclined support rod structure, thereby greatly improving the reliability and stability of the connection between the reinforcement support mechanism and the scaffolding, and improving the safety of the scaffolding construction platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention and its features, configurations and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts throughout the drawings, which are not drawn to scale, with emphasis on illustrating the subject matter of the present invention.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an adjusting and fixing device for power maintenance operations provided by the present invention at a first viewing angle.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of an adjusting and fixing device for power maintenance operations provided by the present invention under a second viewing angle.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of an adjusting and fixing device for power maintenance operations provided by the present invention under a third viewing angle.

[0020] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0021] Figure 5 It is a side view of an adjusting and fixing device for electric power maintenance work provided by the present invention.

[0022] Figure 6 yes Figure 5 BB section structure schematic diagram.

[0023] Figure 7 The present invention provides a diagram of the matching relationship between a clamping sleeve and a driving block of an adjusting and fixing device for electric power maintenance work.

[0024] Figure 8 This is a reinforcement support state diagram of an adjustment and fixing device for power maintenance work provided by the present invention.

[0025] In the figure: 1, fixed connection module; 11, channel steel vertical rail; 111, guide hole; 12, clamping sleeve; 121, clamping piece; 1211, clamping bayonet; 1212, inclined surface; 1213, plug block; 13, drive assembly; 131, bearing seat; 132, drive screw; 133, drive piece; 1331, drive block; 2, tilt support module; 21, main support column; 211, locking socket; 22, auxiliary support column ; 221, plug rod; 222, floor plate; 3, connecting rod module; 31, slide rail; 32, slide plate; 33, positioning assembly; 331, plug sleeve; 332, plug board; 3321, positioning socket; 333, U-shaped plug rod; 334, tension spring; 34, telescopic connecting rod; 341, sleeve; 3411, extension hole; 342, telescopic rod; 3421, screw pin; 3422, locking nut; 4, scaffolding. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] like Figure 8As shown, an adjustment and fixing device for power maintenance work includes a fixed connection module 1 that can be detachably fixed to a scaffold 4, and a tilting support module 2 with an adjustable relative angle and used for tilting support between the ground is installed on the fixed connection module 1, and a connecting rod module 3 is installed between the fixed connection module 1 and the tilting support module 2. A single scaffold 4 requires four support mechanisms provided by the present invention, and the four support mechanisms can be assembled and connected to the four main column steel pipes of the scaffold 4 in a one-to-one manner, forming a structure as shown in FIG. Figure 8 The overall reinforcement support structure shown, and the four support mechanisms need to ensure that the connection height and support inclination angle are consistent as much as possible.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the connection module 1 includes a channel steel vertical rail 11, and four clamping sleeves 12 for clamping and fixing with the scaffold 4 are distributed in the vertical direction in the channel steel vertical rail 11. The channel steel vertical rail 11 is also equipped with a driving component 13 for driving the four clamping sleeves 12 to implement synchronous clamping; rectangular guide holes 111 are horizontally opened on the side walls of the channel steel vertical rail 11 corresponding to each clamping sleeve 12; the clamping sleeve 12 includes two clamping members 121 distributed horizontally in mirror image, and the structure of the clamping member 121 can be specifically seen Figure 7 As shown; the clamping piece 121 is provided with a clamping bayonet 1211 which is in clamping contact with the scaffold 4, the horizontal cross-section of the clamping bayonet 1211 is in an arc shape, and the arc radius of the clamping bayonet 1211 is matched with the radius of the main column steel pipe of the scaffold 4; in order to improve the clamping friction between the inner wall of the clamping bayonet 1211 and the outer wall of the main column steel pipe, the clamping bayonet 1211 is vertically distributed with clamping teeth, it should be noted that the clamping teeth are not shown in the figure, and the clamping piece 121 is provided with a rectangular plug block 1213 which is horizontally slidably plugged into the corresponding guide hole 111 on the same side; the clamping piece 121 is provided with a There is an inclined surface 1212 with an inclined angle between them; the driving assembly 13 includes a bearing seat 131 welded to the bottom end of the channel steel vertical rail 11, and a driving screw 132 is vertically rotatably installed on the bearing seat 131 through a bearing, and four driving members 133 corresponding to four clamping sleeves 12 are threadedly installed on the driving screw 132, and the driving member 133 is vertically slidably installed in the groove of the channel steel vertical rail 11, and two driving blocks 1331 are horizontally symmetrically arranged on the driving member 133, which cooperate with the two clamping members 121 in the clamping sleeve 12 at the corresponding positions, and a wedge-shaped surface in contact with the inclined surface 1212 is arranged at the bottom of the driving block 1331.

[0030] The connection module 1 is equivalent to the fixed connection piece between the existing oblique support rod structure and the main column steel pipe of the scaffolding 4. When the reinforcement support mechanism provided by the present invention is connected to the scaffolding 4, the four clamping sleeves 12 are first in the maximum active opening state, and then the four clamping sleeves 12 are wrapped around the main column steel pipe, so that the main column steel pipe is located in the clamping bayonet 1211 of the two clamping members 121 of the clamping sleeve 12, and then the four driving members 133 are driven to move vertically downward along the inner groove of the channel steel vertical rail 11 by rotating the driving screw 132, and the driving member 133 is contacted with the inclined surface 1212 of the clamping member 121 by the wedge surface of the two driving blocks 1331, so that the two clamping members 12 1 move towards each other under the guidance of the guide hole 111, and finally the two clamping members 121 clamp the main column steel pipe through the clamping bayonet 1211. Four clamping sleeves 12 are vertically distributed in the fixing module 1, thus forming a multi-distributed surface clamping contact with the main column steel pipe, changing the single-point fixed connection contact in the existing oblique support rod structure, thereby greatly improving the reliability and stability of the connection between the reinforcement support mechanism and the scaffolding 4, and improving the safety of the scaffolding 4 construction platform; in addition, in the fixing module 1, the four clamping sleeves 12 are synchronously driven and clamped by the set driving assembly 13, so that fast synchronous clamping and disassembly at multiple points can be achieved, and the operation is very convenient.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the tilt support module 2 includes a main support column 21 hinged on the top of the outer end surface opposite to the notch on the channel steel vertical rail 11. The main support column 21 is a square tubular structure with a closed top and an open bottom. A secondary support column 22 for contacting the ground support is telescopically slidably arranged in the main support column 21. In order to increase the contact area between the secondary support column 22 and the ground, a floor plate 222 is hinged at the bottom of the secondary support column 22 for contacting the ground support. A torsion spring is installed on the hinge shaft of the floor plate 222. When the secondary support column 22 is in a tilted support state with the main support column 21, the floor plate 222 is adaptively fitted and contacted with the ground. Multiple groups of locking sockets 211 evenly distributed along the length direction of the main support column 21 are horizontally penetrated between two opposite side walls of the main support column 21. A plug rod 221 that is plugged in with a group of locking sockets 211 at the corresponding position is horizontally slidably installed on the secondary support column 22. The plug rod 221 is removably arranged on the secondary support column 22. The auxiliary support column 22 is an extension of the length of the main support column 21. When it is supported and installed in conjunction with a higher scaffolding 4, the height of the fixed connection position of the fixed module 1 can be increased to improve the stability of the support. At this time, the auxiliary support column 22 can be pulled outward to a corresponding appropriate length to extend the overall support length of the inclined support module 2. When sliding and adjusting the auxiliary support column 22, the plug rod 221 can be pulled out first, and then the auxiliary support column 22 can be moved. After sliding and pulling out a certain length, when the connection point of the plug rod 221 on the auxiliary support column 22 coincides with another set of locking holes 211, the plug rod 221 is inserted again to complete the locking positioning.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, a slide rail 31 is vertically welded on the outer end surface of the channel steel vertical rail 11 opposite to the notch, and the connecting rod module 3 includes a slide plate 32 that slides vertically along the slide rail 31, and a positioning assembly 33 for sliding locking is assembled between the slide plate 32 and the channel steel vertical rail 11; the positioning assembly 33 includes a plug sleeve 331 symmetrically welded on both vertical sides of the slide plate 32, and the plug sleeve 331 is close to the bottom end of the slide plate 32, and the two opposite outer end surfaces on the channel steel vertical rail 11 are both provided with a plug plate 332 in cooperation with the plug sleeve 331 on the same side. In this embodiment, the plug The connecting plate 332 is set away from the guide hole 111. There are multiple positioning holes 3321 evenly distributed on the connecting plate 332 in the vertical direction. A U-shaped plug rod 333 is installed between the two plug sleeves 331 and the connecting plate 332 on the same side. One end of the U-shaped plug rod 333 is inserted into the plug sleeve 331, and the other end is inserted into one of the positioning holes 3321. A tension spring 334 is horizontally welded between the two U-shaped plug rods 333; when one end of the U-shaped plug rod 333 is pulled out from the positioning hole 3321, the slide plate 32 resumes vertical sliding. There are three telescopic connecting rods 34 hingedly distributed along the length direction on the slide plate 32. The three telescopic connecting rods 34 are all hinged on the main support column 21. Figure 8 It can be seen that the fixed connection module 1 is connected to the scaffold 4 in a vertical state, and the inclined support module 2 is in an inclined support state. The three telescopic connecting rods 34 are used for connecting and supporting the fixed connection module 1 and the inclined support module 2, and the stability of the overall support is improved by forming multiple sets of triangular support structures. The telescopic connecting rod 34 includes a sleeve 341 hinged on the slide 32 and a telescopic rod 342 that is slidably and telescopically arranged in the sleeve 341. The outer end of the telescopic rod 342 is hinged on the main support column 21. The sleeve 341 is provided with an axially extending extension hole 3411. A screw pin 3421 is fixed near the inner end of the telescopic rod 342 in a vertical direction relative to the axial direction. The screw pin 3421 passes through the extension hole 3411 to the outside of the sleeve 341. A locking nut 3422 is threadedly mounted on the screw pin 3421.

[0033] When the reinforcement support mechanism provided by the present invention is assembled on the main column steel pipe of the scaffolding 4, the fixing module 1 is first clamped and fixed at a suitable height position of the main column steel pipe according to the overall height of the scaffolding 4, and then the overall support length of the inclined support module 2 is adjusted according to the fixed connection height. After the length adjustment and locking of the inclined support module 2 are completed, the connecting rod module 3 is adjusted. The specific operation can be carried out as follows.

[0034] First, loosen the locking nuts 3422 of the three telescopic link members 34 so that they are all in a naturally retractable state, then loosen the positioning assembly 33 to keep the slide plate 32 in a slidable state, roughly adjust the inclination angle of the main support column 21 by sliding the slide plate 32, and then insert the U-shaped plug rod 333 into the adjacent positioning socket 3321 again to complete the re-locking of the slide plate 32, then move the position of the floor plate 222 so that it is pressed tightly against the ground, and lock the secondary support column 22 again through the plug rod 221, while keeping the pressed state, tighten the locking nuts 3422 in the three telescopic link members 34 again, so that the reinforced support mechanism completes the reinforced support installation of the scaffolding 4.

[0035] When the scaffolding 4 is not in use, it can be quickly disassembled by loosening the fixing module 1, and the locking nut 3422 and the positioning assembly 33 can be loosened. By sliding the slide plate 32 upward and fully retracting the three telescopic connecting rods 34, the inclined support module 2 and the fixing module 1 can be stored in a combined state for easy storage. When needed, it can be arbitrarily docked with the scaffolding 4 of the required height to form a reinforced support structure.

[0036] The present invention provides an adjusting and fixing device for power maintenance operations, which has structural functions that can be folded, adjusted and released. It can be used for reinforcement and support docking of scaffoldings 4 of most height specifications, has high applicability, and can be quickly docked, quickly disassembled and quickly stored. At the same time, it forms multiple distributed surface clamping contacts with the scaffolding 4, changing the single-point fixed connection contact in the existing inclined support rod structure, thereby greatly improving the reliability and stability of the connection between the reinforcement support mechanism and the scaffolding 4, and improving the safety of the construction platform of the scaffolding 4.

[0037] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An adjusting and fixing device for electric power maintenance work, characterized in that: The invention comprises a fixed connection module (1) which is detachably fixed on a scaffold, the fixed connection module (1) is equipped with an inclined support module (2) which has an adjustable relative angle and is used for inclined support with respect to the ground, and a connecting rod module (3) is installed between the fixed connection module (1) and the inclined support module (2); wherein: The fixed connection module (1) comprises a channel steel vertical rail (11), wherein a plurality of clamping sleeves (12) for clamping and fixing with a scaffold (4) are distributed in the vertical direction in the groove of the channel steel vertical rail (11), and a driving component (13) for driving the plurality of clamping sleeves (12) to implement synchronous clamping is also installed on the channel steel vertical rail (11); the inclined support module (2) comprises a main support column (21) hingedly connected to the top of the outer end surface of the channel steel vertical rail (11) opposite to the groove, and the main support column (21) is a tubular structure with a closed top and an open bottom, and the main support column (21) 1) a secondary support column (22) is provided in an inner telescopic sliding manner for contacting the ground support; the connecting rod module (3) includes a slide plate (32) slidably installed along the length direction of the channel steel vertical rail (11), the slide plate (32) is located on the opposite outer end surfaces in the groove of the channel steel vertical rail (11), and a positioning component (33) for sliding locking is installed between the slide plate (32) and the channel steel vertical rail (11); a plurality of telescopic connecting rods (34) are hingedly connected to the slide plate (32) along the length direction, and the plurality of telescopic connecting rods (34) are hingedly connected to the main support column (21).

2. The adjusting and fixing device for electric power maintenance work according to claim 1, characterized in that: Guide holes (111) are horizontally provided on the side walls of both sides of the channel steel vertical rail (11) corresponding to each clamping sleeve (12); the clamping sleeve (12) comprises two clamping members (121) which are horizontally distributed in mirror image; the clamping members (121) are provided with clamping bayonets (1211) which are in clamping contact with the scaffolding (4); and the clamping members (121) are provided with plug blocks (1213) which are horizontally slidably plugged into the corresponding guide holes (111) on the same side.

3. The adjusting and fixing device for electric power maintenance work according to claim 2, characterized in that: The clamping member (121) is provided with an inclined surface (1212) which has an inclined angle with the insert block (1213); the driving assembly (13) comprises a bearing seat (131) fixed at the bottom end of the channel steel vertical rail (11); a driving screw (132) is vertically rotatably mounted on the bearing seat (131); a plurality of driving members (133) which are arranged one by one corresponding to a plurality of clamping sleeves (12) are threadedly mounted on the driving screw (132); the driving member (133) is vertically slidably mounted in the groove of the channel steel vertical rail (11); two driving blocks (1331) which are horizontally symmetrically arranged on the driving member (133) and which cooperate with two clamping members (121) in the clamping sleeves (12) at corresponding positions are matched; and a wedge-shaped surface which contacts the inclined surface (1212) is arranged at the bottom end of the driving block (1331).

4. The adjusting and fixing device for electric power maintenance work according to claim 1, characterized in that: The bottom end of the auxiliary support column (22) is hingedly connected with a floor panel (222) that is in contact with the ground support, and a torsion spring is mounted on the hinge shaft of the floor panel (222).

5. The adjusting and fixing device for electric power maintenance work according to claim 1, characterized in that: A plurality of locking sockets (211) are horizontally penetrated between two opposite side walls of the main support column (21) and are distributed along the length direction of the main support column (21); a plug rod (221) is horizontally slidably mounted on the secondary support column (22) and is plugged into a group of locking sockets (211) at corresponding positions; the plug rod (221) is removably arranged on the secondary support column (22).

6. The adjusting and fixing device for electric power maintenance work according to claim 1, characterized in that: The positioning assembly (33) includes sockets (331) symmetrically arranged on both vertical sides of the slide plate (32); the two opposite outer end surfaces on the channel steel vertical rail (11) are provided with a plug-in board (332) in cooperation with the sockets (331) on the same side; a plurality of positioning holes (3321) are distributed on the plug-in board (332) along the vertical direction; a U-shaped plug rod (333) is installed between the two sockets (331) and the plug-in board (332) on the same side; one end of the U-shaped plug rod (333) is plugged into the socket (331), and the other end is plugged into one of the positioning holes (3321); a tension spring (334) is horizontally connected between the two U-shaped plug rods (333); when one end of the U-shaped plug rod (333) is pulled out of the positioning hole (3321), the slide plate (32) resumes vertical sliding.

7. The adjusting and fixing device for electric power maintenance work according to claim 1, characterized in that: The telescopic connecting rod (34) comprises a sleeve (341) hinged on the slide plate (32) and a telescopic rod (342) slidably and telescopically arranged in the sleeve (341); the outer end of the telescopic rod (342) is hinged on the main support column (21); the sleeve (341) is provided with an elongated hole (3411) extending along the axial direction; a screw pin (3421) is fixed on the telescopic rod (342) near the inner end thereof in a manner perpendicular to the axial direction; the screw pin (3421) passes through the elongated hole (3411) to the outside of the sleeve (341); a locking nut (3422) is threadedly mounted on the screw pin (3421).

8. The adjusting and fixing device for electric power maintenance work according to claim 2, characterized in that: The horizontal cross-section of the clamping bayonet (1211) is in the shape of an arc, and clamping teeth are vertically distributed inside the clamping bayonet (1211).

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