CN110364963A - A wire protection rope cross-arm connection tool - Google Patents

Abstract

The invention discloses a wire protection rope cross-arm connecting tool, which comprises a frame body, a locking device for fixing the frame body on the cross-arm, and a clamping slot fixed at the lower part of the frame body. The invention has the characteristics of reasonable structure, convenient use, convenient portability and simple operation. The invention is applied to operations such as moving wires, adjusting wire clips or replacing insulator strings for power failure or live maintenance. The invention can realize the connection between the wire protection rope and the cross arm in a simple, fast, firm and non-damaging manner, and can effectively prevent the hook slipping accident. While solving various problems of traditional protective rope suspension tools, the work efficiency is greatly improved. The connecting tool of the present invention is suitable for 110kV and 220kV transmission line power outages or live inspections that require moving wires, adjusting wire clamps, or replacing insulator strings. The use of this achievement can greatly reduce the labor intensity of the staff, shorten the working time, and effectively prevent accidents during maintenance operations. The wire falls off, improving work efficiency and work safety.

Description

A wire protection rope cross-arm connection tool

technical field

The invention relates to the technical field of power distribution network, in particular to a wire protection rope cross-arm connection tool.

Background technique

The cross arm is an important part of the pole tower. The structure of the cross arm is the angle iron fixed horizontally on the top of the utility pole, and there is a porcelain bottle on it, which is used to support the overhead wire.

The function of the cross arm is to install insulators and fittings to support wires and lightning conductors and keep them at a certain safe distance according to regulations.

Usually, the cross arm is installed on the hoop on the line pole and fixed by welding. The installation operation is more cumbersome, and it is very dangerous to work at heights. In addition, the force on the hoop is large and it is easy to slip with the line pole. The safe operation of the system will cause serious hazards.

When daily power outages or live inspections require moving wires, adjusting wire clamps, or replacing insulator strings, etc., if a single suspension wire device is used, a backup protection rope must be used to prevent wires from falling off according to safety requirements. However, the traditional protection rope suspension tool is a ring. After passing through the main material of the tower, it is buckled to the hook on the protection rope. This kind of hanging tool will damage the protection rope due to friction, and it is inconvenient to assemble and disassemble, and the work efficiency is low.

Therefore, there is an urgent need to develop a tool that can change the original installation method of the protection rope, simplify the operation process, and complete the connection between the wire protection rope and the cross arm easily, quickly, firmly, and without damage, improve work efficiency, and prevent hook slipping accidents.

Contents of the invention

The purpose of the present invention is to provide a wire protection rope cross-arm connection tool, which can simplify the operation process, complete the connection between the wire protection rope and the cross-arm in a simple, fast, firm and non-damaging manner, improve work efficiency, and prevent hook slipping accidents.

In order to achieve the above object, the technical scheme that the present invention takes is as follows:

The utility model relates to a wire protection rope cross-arm connection tool, which comprises a frame body, a locking device fixedly connecting the frame body to the cross-arm, and a card slot fixed at the lower part of the frame body.

As a further improvement of the present invention,

The frame body includes a long riser, one end fixedly connected to the first 90-degree bend on the upper surface of the long riser, a short riser fixedly connected to the other end of the first 90-degree bend and parallel to the long riser, and one end fixed The upper horizontal plate connected to the lower end surface of the short vertical plate and perpendicular to the short vertical plate, one end fixedly connected to the other end of the upper horizontal plate and bent to the long vertical plate at the second 90-degree bend and fixedly connected at the second 90-degree bend the lower transverse plate bent at the other end and located directly below the upper transverse plate;

The upper horizontal board and the long vertical board are respectively located on both sides of the short vertical board.

As a further improvement of the present invention,

The clamping slot includes a U-shaped piece with a through hole on the side and a fixing rod fixed in the U-shaped piece for connecting the protective rope cover.

As a further improvement of the present invention,

One side of the U-shaped piece is welded and fixed on the outer lower part of the long riser, and the long riser is provided with a receiving hole that coincides with the through hole, the fixing rod is a fixing bolt, and the screw rod of the fixing bolt passes through the receiving hole. Holes and through-holes are fixed in the U-shaped piece.

As a further improvement of the present invention,

The inner side of the U-shaped piece opposite to the free end of the screw rod is provided with a threaded groove or a threaded hole; the end of the fixed rod is fixedly provided with a nut, and the diameter of the nut is larger than the diameter of the receiving hole.

As a further improvement of the present invention,

A rib plate is fixedly arranged between the outer surface of the short vertical plate and the upper surface of the upper horizontal plate;

The rib plate is a triangular plate.

As a further improvement of the present invention,

The locking device includes a mounting hole opened on the long vertical plate and a locking bolt passing through the mounting hole for fixing and connecting the cross arm;

The height of the mounting hole is higher than the uppermost end of the U-shaped piece and lower than the lower surface of the upper cross plate;

The number of the installation holes is more than two, and the two installation holes are arranged horizontally on the long vertical plate.

As a further improvement of the present invention,

The inner surface of the upper horizontal plate, the second 90-degree bend and the lower horizontal plate is provided with a first anti-skid layer in contact with the cross arm, and the middle part of the inner surface of the long vertical plate is provided with a first anti-skid layer in contact with the cross arm. Two anti-slip layers.

As an anti-slip method of the present invention,

Both the first anti-slip layer and the second anti-slip layer are anti-slip patterns.

As another anti-slip method of the present invention,

Both the first anti-slip layer and the second anti-slip layer are rubber layers.

Compared with prior art, the beneficial effect that the present invention obtains is as follows:

The invention has the characteristics of reasonable structure, convenient use, convenient portability and simple operation. The invention is applied to operations such as moving wires, adjusting wire clips or replacing insulator strings for power failure or live maintenance. The invention can realize the connection between the wire protection rope and the cross arm in a simple, fast, firm and non-damaging manner, and can effectively prevent the hook slipping accident. While solving the various problems of the traditional protective rope hanging tools, it greatly improves the work efficiency. According to the improvement of work efficiency by 5 minutes per operation, and 100 times of maintenance in a year, the power outage time can be reduced by 8 hours per year, and the power supply can be increased by about 8 hours. 2.47 million kwh (calculated based on 80% load rate).

The connecting tool of the present invention is suitable for 110kV and 220kV transmission line power outages or live inspections that require moving wires, adjusting wire clamps, or replacing insulator strings. The use of this achievement can greatly reduce the labor intensity of the staff, shorten the working time, and effectively prevent accidents during maintenance operations. The wire falls off, improving work efficiency and work safety.

Description of drawings

Accompanying drawing 1 is the schematic structural diagram of the front view of Embodiment 1 of the present invention;

Accompanying drawing 2 is a right-view structure diagram of Embodiment 1 of the present invention;

Accompanying drawing 3 is a top view structural schematic diagram of Embodiment 1 of the present invention;

Accompanying drawing 4 is the schematic diagram of the mechanism that the present invention is connected in cross arm;

Accompanying drawing 5 is the structural schematic diagram of embodiment 2 of the present invention.

In the accompanying drawings: 1 long vertical plate, 2 first 90-degree bending, 3 stiffener plate, 4 upper horizontal plate, 5 second 90-degree bending, 6 lower horizontal plate, 7 card slot, 8 fixing rod, 9 screw Cap, 10 mounting hole, 11 cross arm, 12 locking bolt, 13 first anti-skid layer, 14 second anti-skid layer, 15 protective rope sleeve, 16 short vertical plate, 17 accommodation hole.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as any limitation of the application, its application or uses. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Specification. In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present application, it should be understood that orientation words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. indicate the orientation Or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description. In the absence of a contrary statement, these orientation words do not indicate or imply the device or element referred to It must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as limiting the protection scope of the present application; the orientation words "inner and outer" refer to the inner and outer relative to the outline of each component itself.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations”.

Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. To limit the protection scope of this application.

Embodiment one

As shown in Figures 1-4, a wire protection rope cross-arm connection tool includes a frame, a locking device for fixing the frame to the cross-arm, and a slot 7 fixed at the lower part of the frame.

The frame body includes a long riser 1, a first 90-degree bend 2 fixedly connected to the upper end surface of the long riser 1 at one end, and a short bend 2 fixedly connected to the other end of the first 90-degree bend 2 and parallel to the long riser 1. Riser 16, one end is fixedly connected to the lower end surface of the short vertical board 16 and the upper horizontal board 4 perpendicular to the short vertical board 16, one end is fixedly connected to the other end of the upper horizontal board 4 and bent to the second 90 degree of the long vertical board 1 The bend 5 and the lower cross plate 6 fixedly connected to the other end of the second 90-degree bend 5 and located directly below the upper cross plate 4;

The upper horizontal board 4 and the long vertical board 1 are respectively located on both sides of the short vertical board 16 .

The clamping slot 7 includes a U-shaped piece with a through hole on the side and a fixing rod 8 fixed in the U-shaped piece for connecting the protective rope cover 15 .

One side of the U-shaped piece is welded and fixed on the lower part of the outer side of the long vertical plate 1, and the long vertical plate 1 is provided with a receiving hole 17 that coincides with the through hole, and the fixing rod 8 is a fixing bolt, and the fixing bolt The screw is fixed in the U-shaped piece after passing through the receiving hole 17 and the through hole.

The inner side of the U-shaped part opposite to the free end of the screw is provided with a threaded hole, and the free end of the screw passes through the threaded hole to realize the fixing of the screw in the U-shaped part. The end of the fixed rod 8 is fixedly provided with a nut 9, and the nut 9 The diameter is greater than the diameter of the housing hole 17.

A rib plate 3 is fixedly arranged between the outer surface of the short vertical plate 16 and the upper surface of the upper horizontal plate 4;

The rib plate 3 is a triangular plate.

The locking device includes a mounting hole 10 opened on the long vertical plate 1 and a locking bolt 12 penetrating through the mounting hole 10 for fixing and connecting the cross arm 11;

The height of the mounting hole 10 is higher than the uppermost end of the U-shaped piece and lower than the lower surface of the upper cross plate 4;

The number of the installation holes 10 is more than two, and the two installation holes 10 are horizontally arranged on the long riser 1 .

The upper horizontal plate 4, the second 90-degree bend 5 and the semi-closed hook formed on the inner side of the lower horizontal plate 6 can be directly hung on the angle iron of the main material of the pole tower, wherein the opening width can meet the angle iron of the main material of various tower types. thickness.

The locking bolt 12 is a 12mm bolt that passes through the long vertical plate 1. The length of the screw is 70mm. The head of the bolt can be rotated to adjust its penetration depth. Comes out of the angle iron.

The width of the slot connecting the insulating rope is designed to be 35mm, and the height is designed to be 70mm. The length of the fixing bolt is 80mm, and the diameter is 16mm. It can also be unscrewed from the threaded hole of the U-shaped piece with thread. The protection rope cover 15 plays the role of connecting the protection rope and the draw-in groove.

After mechanical performance test and on-site actual work test, the tool is used for power outage or live maintenance, which requires operations such as moving wires, adjusting wire clamps or replacing insulator strings.

This connection tool can easily, quickly, firmly and without damage complete the connection of the wire protection rope and the cross arm, and can effectively prevent the accident of the hook slipping. While solving the various problems of the traditional protective rope hanging tools, it greatly improves the work efficiency. According to the improvement of work efficiency by 5 minutes per operation, and 100 times of maintenance in a year, the power outage time can be reduced by 8 hours per year, and the power supply can be increased by about 8 hours. 2.47 million kwh (calculated based on 80% load rate).

The connecting tool of the present invention is suitable for 110kV and 220kV transmission line power outages or live inspections that require moving wires, adjusting wire clamps, or replacing insulator strings. The use of this achievement can greatly reduce the labor intensity of the staff, shorten the working time, and effectively prevent accidents during maintenance operations. The wire falls off, improving work efficiency and work safety.

Embodiment two

As shown in Figures 1-5, a wire protection rope cross-arm connection tool includes a frame, a locking device for fixing the frame to the cross-arm, and a slot 7 fixed at the lower part of the frame.

The frame body includes a long riser 1, a first 90-degree bend 2 fixedly connected to the upper end surface of the long riser 1 at one end, and a short bend 2 fixedly connected to the other end of the first 90-degree bend 2 and parallel to the long riser 1. Riser 16, one end is fixedly connected to the lower end surface of the short vertical board 16 and the upper horizontal board 4 perpendicular to the short vertical board 16, one end is fixedly connected to the other end of the upper horizontal board 4 and bent to the second 90 degree of the long vertical board 1 The bend 5 and the lower cross plate 6 fixedly connected to the other end of the second 90-degree bend 5 and located directly below the upper cross plate 4;

The upper horizontal board 4 and the long vertical board 1 are respectively located on both sides of the short vertical board 16 .

The clamping slot 7 includes a U-shaped piece with a through hole on the side and a fixing rod 8 fixed in the U-shaped piece for connecting the protective rope cover 15 .

One side of the U-shaped piece is welded and fixed on the lower part of the outer side of the long vertical plate 1, and the long vertical plate 1 is provided with a receiving hole 17 that coincides with the through hole, and the fixing rod 8 is a fixing bolt, and the fixing bolt The screw is fixed in the U-shaped piece after passing through the receiving hole 17 and the through hole.

The inner side of the U-shaped part opposite to the free end of the screw is provided with a threaded hole, and the free end of the screw passes through the threaded hole to realize the fixing of the screw in the U-shaped part. The end of the fixed rod 8 is fixedly provided with a nut 9, and the nut 9 The diameter is greater than the diameter of the housing hole 17.

A rib plate 3 is fixedly arranged between the outer surface of the short vertical plate 16 and the upper surface of the upper horizontal plate 4;

The rib plate 3 is a triangular plate.

The locking device includes a mounting hole 10 opened on the long vertical plate 1 and a locking bolt 12 penetrating through the mounting hole 10 for fixing and connecting the cross arm 11;

The height of the mounting hole 10 is higher than the uppermost end of the U-shaped piece and lower than the lower surface of the upper cross plate 4;

The number of the installation holes 10 is more than two, and the two installation holes 10 are horizontally arranged on the long riser 1 .

The inner surface of the upper horizontal plate 4, the second 90-degree bend 5 and the lower horizontal plate 6 is provided with a first anti-skid layer 13 in contact with the cross arm 11, and the middle part of the inner surface of the long vertical plate 1 is provided with a The second anti-skid layer 14 that the cross arm 11 is in contact with.

The first anti-slip layer 13 and the second anti-slip layer 14 are all anti-slip patterns. Specifically, the first anti-slip layer 13 and the second anti-slip layer 14 can adopt a checkered steel plate with a rhombus pattern on the inner surface. Dan 11 The roughness of the contact surface has a large friction coefficient and a large friction force.

Embodiment three

As shown in Figures 1-5, a wire protection rope cross-arm connection tool includes a frame, a locking device for fixing the frame to the cross-arm, and a slot 7 fixed at the lower part of the frame.

The frame body includes a long riser 1, a first 90-degree bend 2 fixedly connected to the upper end surface of the long riser 1 at one end, and a short bend 2 fixedly connected to the other end of the first 90-degree bend 2 and parallel to the long riser 1. Riser 16, one end is fixedly connected to the lower end surface of the short vertical board 16 and the upper horizontal board 4 perpendicular to the short vertical board 16, one end is fixedly connected to the other end of the upper horizontal board 4 and bent to the second 90 degree of the long vertical board 1 The bend 5 and the lower cross plate 6 fixedly connected to the other end of the second 90-degree bend 5 and located directly below the upper cross plate 4;

The upper horizontal board 4 and the long vertical board 1 are respectively located on both sides of the short vertical board 16 .

The clamping slot 7 includes a U-shaped piece with a through hole on the side and a fixing rod 8 fixed in the U-shaped piece for connecting the protective rope cover 15 .

One side of the U-shaped piece is welded and fixed on the lower part of the outer side of the long vertical plate 1, and the long vertical plate 1 is provided with a receiving hole 17 that coincides with the through hole, and the fixing rod 8 is a fixing bolt, and the fixing bolt The screw is fixed in the U-shaped piece after passing through the receiving hole 17 and the through hole.

The inner side of the U-shaped part opposite to the free end of the screw is provided with a threaded hole, and the free end of the screw passes through the threaded hole to realize the fixing of the screw in the U-shaped part. The end of the fixed rod 8 is fixedly provided with a nut 9, and the nut 9 The diameter is greater than the diameter of the housing hole 17.

A rib plate 3 is fixedly arranged between the outer surface of the short vertical plate 16 and the upper surface of the upper horizontal plate 4;

The rib plate 3 is a triangular plate.

The locking device includes a mounting hole 10 opened on the long vertical plate 1 and a locking bolt 12 penetrating through the mounting hole 10 for fixing and connecting the cross arm 11;

The height of the mounting hole 10 is higher than the uppermost end of the U-shaped piece and lower than the lower surface of the upper cross plate 4;

The number of the installation holes 10 is more than two, and the two installation holes 10 are horizontally arranged on the long riser 1 .

The inner surface of the upper horizontal plate 4, the second 90-degree bend 5 and the lower horizontal plate 6 is provided with a first anti-skid layer 13 in contact with the cross arm 11, and the middle part of the inner surface of the long vertical plate 1 is provided with a The second anti-skid layer 14 that the cross arm 11 is in contact with.

The first anti-skid layer 13 and the second anti-skid layer 14 are both rubber layers, and the rubber layer increases the friction between the cross arm 11. On the other hand, the rubber layer has a certain elasticity, which can ensure the support between the frame body and the cross arm. 11 The tightness of the connection makes the connection more stable.

Embodiment Four

A wire protection rope cross-arm connection tool includes a frame body, a locking device for fixedly connecting the frame body to the cross-arm, and a card slot 7 fixed at the lower part of the frame body.

The frame body includes a long riser 1, a first 90-degree bend 2 fixedly connected to the upper end surface of the long riser 1 at one end, and a short bend 2 fixedly connected to the other end of the first 90-degree bend 2 and parallel to the long riser 1. Riser 16, one end is fixedly connected to the lower end surface of the short vertical board 16 and the upper horizontal board 4 perpendicular to the short vertical board 16, one end is fixedly connected to the other end of the upper horizontal board 4 and bent to the second 90 degree of the long vertical board 1 The bend 5 and the lower cross plate 6 fixedly connected to the other end of the second 90-degree bend 5 and located directly below the upper cross plate 4;

The upper horizontal board 4 and the long vertical board 1 are respectively located on both sides of the short vertical board 16 .

The clamping slot 7 includes a U-shaped piece with a through hole on the side and a fixing rod 8 fixed in the U-shaped piece for connecting the protective rope cover 15 .

One side of the U-shaped piece is welded and fixed on the lower part of the outer side of the long vertical plate 1, and the long vertical plate 1 is provided with a receiving hole 17 that coincides with the through hole, and the fixing rod 8 is a fixing bolt, and the fixing bolt The screw is fixed in the U-shaped piece after passing through the receiving hole 17 and the through hole.

The end of the fixing rod 8 is fixedly provided with a nut 9 , and the diameter of the nut 9 is larger than that of the receiving hole 17 .

A rib plate 3 is fixedly arranged between the outer surface of the short vertical plate 16 and the upper surface of the upper horizontal plate 4;

The rib plate 3 is a triangular plate.

The locking device includes a mounting hole 10 opened on the long vertical plate 1 and a locking bolt 12 penetrating through the mounting hole 10 for fixing and connecting the cross arm 11;

The height of the mounting hole 10 is higher than the uppermost end of the U-shaped piece and lower than the lower surface of the upper cross plate 4;

The number of the installation holes 10 is more than two, and the two installation holes 10 are horizontally arranged on the long riser 1 .

The inner surface of the upper horizontal plate 4, the second 90-degree bend 5 and the lower horizontal plate 6 is provided with a first anti-skid layer 13 in contact with the cross arm 11, and the middle part of the inner surface of the long vertical plate 1 is provided with a The second anti-skid layer 14 that the cross arm 11 is in contact with.

The first anti-slip layer 13 and the second anti-slip layer 14 are all anti-slip patterns. Specifically, the first anti-slip layer 13 and the second anti-slip layer 14 can adopt a checkered steel plate with a rhombus pattern on the inner surface. Dan 11 The roughness of the contact surface has a large friction coefficient and a large friction force.

or

The first anti-skid layer 13 and the second anti-skid layer 14 are both rubber layers, and the rubber layer increases the friction between the cross arm 11. On the other hand, the rubber layer has a certain elasticity, which can ensure the support between the frame body and the cross arm. 11 The tightness of the connection makes the connection more stable.

The difference with respect to Embodiment 1, Embodiment 2 or Embodiment 3 is that a threaded groove is provided on the inner side of the U-shaped piece opposite to the free end of the screw rod, and the free end of the screw rod is threaded in the threaded groove so as to realize the screw rod in the U-shaped piece. fixed.

Claims (10)

1. A wire protection rope cross-arm connection tool, characterized in that it includes a frame body, a locking device for fixedly connecting the frame body to the cross-arm, and a slot (7) fixed at the lower part of the frame body. 2. A wire protection rope cross-arm connection tool according to claim 1, characterized in that: the frame body includes a long vertical plate (1), and a first end fixedly connected to the upper end surface of the long vertical plate (1). 90-degree bending (2), a short vertical plate (16) fixedly connected to the other end of the first 90-degree bending (2) and parallel to the long vertical plate (1), one end fixedly connected to the short vertical plate (16) The upper horizontal plate (4) whose end face is perpendicular to the short vertical plate (16), one end fixedly connected to the other end of the upper horizontal plate (4) and the second 90-degree bend (5) bent toward the long vertical plate (1) And the lower transverse plate (6) fixedly connected to the other end of the second 90-degree bend (5) and located directly below the upper transverse plate (4); The upper horizontal board (4) and the long vertical board (1) are respectively located on both sides of the short vertical board (16). 3. A wire protection rope cross-arm connection tool according to claim 2, characterized in that: the card slot (7) includes a U-shaped piece with a through hole on the side and is fixed in the U-shaped piece for Connect the fixed rod (8) of the safety rope cover (15). 4. A wire protection rope cross-arm connection tool according to claim 3, characterized in that: one side of the U-shaped piece is welded and fixed on the outer lower part of the long vertical plate (1), and the long vertical plate (1) An accommodating hole (17) coincident with the through hole is opened on the top, the fixing rod (8) is a fixing bolt, and the screw rod of the fixing bolt passes through the accommodating hole (17) and the through hole and is fixed in the U-shaped piece. 5. A wire protection rope cross-arm connection tool according to claim 4, characterized in that: the inner side of the U-shaped piece opposite to the free end of the screw rod is provided with a threaded groove or a threaded hole; the end of the fixing rod (8) is fixedly arranged There is a nut (9), and the diameter of the nut (9) is larger than the diameter of the receiving hole (17). 6. A wire protection rope crossarm connection tool according to claim 5, characterized in that: a reinforcement is fixed between the outer surface of the short vertical plate (16) and the upper surface of the upper horizontal plate (4). ribs (3); The rib plate (3) is a triangular plate. 7. A wire protection rope cross-arm connection tool according to claim 6, characterized in that: the locking device includes a mounting hole (10) opened on the long vertical plate (1) and a through mounting hole (10) Locking bolts (12) that are used to securely connect the cross arm (11); The height of the mounting hole (10) is higher than the uppermost end of the U-shaped piece and lower than the lower surface of the upper cross plate (4); The number of the installation holes (10) is more than two, and the installation holes (10) are arranged horizontally on the long vertical board (1). 8. A wire protection rope cross-arm connection tool according to claim 7, characterized in that: the upper horizontal plate (4), the second 90-degree bend (5) and the inner surface of the lower horizontal plate (6) The side is provided with a first anti-slip layer (13) in contact with the cross arm (11), and the middle part of the inner side of the long vertical board (1) is provided with a second anti-slip layer (14) in contact with the cross arm (11) . 9. The wire protection rope cross-arm connection tool according to claim 8, characterized in that: the first anti-slip layer (13) and the second anti-slip layer (14) are both anti-slip patterns. 10. The wire protection rope cross-arm connection tool according to claim 8, characterized in that: the first anti-slip layer (13) and the second anti-slip layer (14) are both rubber layers.