Human body support device for overhead line operation

Abstract

The invention discloses a human body support device for working on an overhead line, and relates to the technical field of auxiliary tools for working on overhead lines, including a safety protection frame, which includes two main pipes arranged in parallel with each other, a plurality of cross braces arranged between the two main pipes, and the cross braces are fixedly connected to the main pipes through three-way joints; wherein the two sides of the bottom cross brace are respectively fixedly provided with pedal joints, and the two sides between the two pedal joints are rotatably provided with pedal tubes; a backrest joint is respectively fixedly provided on the two main pipes, and a backrest tube is rotatably provided on the backrest joints; a parallel joint is also fixedly provided on the upper part of the two main pipes, and a U-shaped connecting tube is fixedly provided between the two parallel joints; a clamping hook is also fixedly provided on the upper part of the two main pipes. The clamping hook can be hung on the overhead cable and has the function of preventing rotation and swaying. The safety protection frame is made of aluminum alloy pipes and can be folded for easy carrying and transportation.

Description

Technical Field

[0001] The invention relates to the technical field of overhead line operation auxiliary tools, and in particular to a human body support device for overhead line operation. Background Art

[0002] When replacing insulators on overhead line towers, it is usually necessary to step on the towers, and the body is tilted outwards by the safety rope to replace the insulators, and some even need to bend the body or lie on the ground to operate. If the operator does this for a long time, the body will be easily fatigued, and there are also great safety hazards. Although there are also auxiliary tools that can be used on overhead lines, such as ropeways, soft ladders, etc., they are not suitable for specific occasions due to their different main uses. For example, the multifunctional single-line ropeway rope disclosed in CN104577880A includes two support rods distributed in the vertical direction, hanging rings for fixing rope ladders respectively arranged at the lower ends of the two support rods, and pedals arranged between the two support rods. Each support rod is provided with a connecting piece at the top, and the multifunctional single-line ropeway ... Such a device will slide on the overhead line, and the replacement of insulators on the overhead line tower does not require movement. On the contrary, movement will bring inconvenience to the construction. Summary of the invention

[0003] In order to solve the above problems, the present invention adopts the following technical solutions:

[0004] A human body support device for working on an overhead line, comprising a clamping hook and a safety protection frame;

[0005] The safety protection frame includes two main pipes arranged parallel to each other, and multiple cross braces are arranged between the two main pipes. The cross braces are fixedly connected to the main pipes through three-way joints. This is a relatively common structure. The cross braces and the main pipes are made of pipes, such as aluminum alloy pipes, which can reduce the weight of the entire device and facilitate carrying.

[0006] Pedal joints are fixedly provided on both sides of the bottom cross brace, and pedal tubes are rotatably provided on both sides between the two pedal joints; the pedal tubes can be rotated upward along the pedal joints, so that they can be folded for easy storage, carrying and transportation.

[0007] A backrest joint is fixedly arranged on each of the two main pipes, and a backrest pipe is rotatably arranged on the backrest joint; the backrest pipe is a U-shaped structure and can be rotated upward along the backrest joint for easy storage, carrying and transportation.

[0008] A parallel joint is fixedly arranged on the upper part of the two main pipes, and a U-shaped connecting pipe is fixedly arranged between the two parallel joints; such a design makes the top structure stable without affecting the operation.

[0009] The upper parts of the two main pipes are respectively fixed with a clamping hook.

[0010] Preferably, the clamping hook includes a hook body, a rotating shaft, a clamping claw, a tension spring and a cover plate; the hook body includes a main working part and a connecting part, the main working part is a semi-circular hollow structure with one side open; the hook body is made in one piece, and the hollow structure is convenient for arranging a clamping structure inside it, thereby reducing the manufacturing cost. A wire groove is provided through the center of the main working part, and the wire groove is a long groove structure, which divides the main working part into an inverted U-shaped structure; one end of the wire groove is connected to the lower edge of the main working part, and its main function is to accommodate overhead cables, and the function of the long groove structure is to ensure that the cables have sufficient depth when inserted to prevent them from falling off. Two rotating shaft holes are provided at the bottom of the main working part perpendicular to the open surface, and the two rotating shaft holes are symmetrically located on both sides of the wire groove; the rotating shafts are respectively fixed in the rotating shaft holes; the clamping claws are rotatably provided on the two rotating shafts; tension spring ears are fixedly provided on the two inner side walls of the main working part;

[0011] There are two clamping claws, which have the same structure and are symmetrical to each other; a left clamping claw located on the left rotating shaft of the wire trough and a right clamping claw located on the right rotating shaft of the wire trough; the two clamping claws can rotate along the rotating shaft and can clamp the cables inserted into the wire trough; the left clamping claw and the right clamping claw are respectively connected to the tension spring hanging ears through their corresponding tension springs; the two clamping claws can achieve a bistable state through the force of the tension springs, combined with the wire trough with a long groove structure, and can better lock the cables.

[0012] The connecting part is fixedly provided on one side of the bottom of the U-shaped main working part, and a protective frame connecting hole is provided at the bottom of the connecting part. The safety protective frame is fixedly connected to the clamping hook by bolts passing through the protective frame connecting hole; the bolt connection can well realize assembly or disassembly, facilitate production, processing and transportation, and reduce costs. A grounding wire connecting hole is provided on the outer wall of the connecting part, and the grounding wire connecting hole is connected to the grounding wire by passing bolts. The entire clamping hook is made of conductive material, and is connected to the grounding wire to prevent electric shock accidents, which can improve the safety of the device;

[0013] The cover plate is arranged on one side of the hook body.

[0014] Preferably, the left clamping claw is in an S-shaped structure, with a top groove on the top, which divides the top of the left clamping claw into at least two claw fingers, a cable semi-arc groove is provided on the lower side of the claw finger, and a sliding groove is provided through the left clamping claw, which is located at the root of the claw finger; through the cooperation of the claw fingers on the two clamping claws and the cable semi-arc groove, the whole structure can well realize the opening and locking of the cable. The cable semi-arc groove plays a role of limiting and clamping when locking, and acts as a fulcrum for pushing downward when disengaging, and the whole clamping claw rotates along the rotating shaft to both sides.

[0015] A tension spring ear buckle is fixedly provided on the inner side of the left clamping claw; a bottom groove is provided at the bottom end of the left clamping claw, and the bottom groove corresponds to the top groove, and the bottom groove divides the bottom end of the left clamping claw into at least two bottom support arms, and the ends of the bottom support arms are connected to each other and are provided with supporting inclined surfaces, which can match and correspond with the inner side wall of the main working part when the entire left clamping claw rotates outward; the function of the bottom support arm and the supporting inclined surface is to use the inner side wall of the main working part to limit the cable when the clamping claw releases the cable, so as to prevent it from swinging and causing misalignment.

[0016] The rotating shaft is inserted into the sliding groove.

[0017] Preferably, the radius of the cable semi-arc groove is equal to or smaller than the diameter of the cable.

[0018] Preferably, the hook body is made of cast iron.

[0019] Preferably, the sliding groove is a long groove structure.

[0020] Preferably, the widths of the top groove and the bottom groove are equal and greater than the thicknesses of the claw fingers and the bottom support arm.

[0021] Preferably, a reinforcing support protrusion is also provided on the top inner side wall of the main working part, and the reinforcing support protrusion is located obliquely above the wire groove. When the clamping claw clamps the cable and rotates upward, its top contacts with the reinforcing support protrusion, which can increase the suspension strength.

[0022] Preferably, a cover plate fixing threaded hole is also provided on the opening side of the main working part;

[0023] The cover plate is also provided with corresponding screw holes for fixing the cover plate.

[0024] Preferably, the safety protection frame is made of aluminum alloy pipe.

[0025] The present invention has a clamping hook fixedly arranged on the top of the safety protection frame, which can be hung on the overhead cable and has the function of preventing rotation and swinging. It is very convenient to hang and take, and also has a grounding protection function. In addition, the safety protection frame is made of aluminum alloy pipes and can be folded, which is convenient to carry and transport. It has a reasonable design, ingenious structure, convenient operation, good stability, and is easy to assemble and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view of the overall structure of the embodiment provided by the present invention;

[0027] Figure 2 It is a left view of the overall structure of the embodiment provided by the present invention;

[0028] Figure 3 yes Figure 1 A partial cross-sectional view of

[0029] Figure 4 is a schematic diagram of the overall structure of the clamping hook in the embodiment provided by the present invention;

[0030] Figure 5 is an exploded schematic diagram of a clamping hook in an embodiment provided by the present invention;

[0031] Figure 6 is a schematic diagram of the three-dimensional structure of the clamping hook after removing the cover plate in the embodiment provided by the present invention;

[0032] Figure 7 yes Figure 6 The main view;

[0033] Figure 8 is a schematic diagram of the overall structure of the hook body in the embodiment provided by the present invention;

[0034] Fig. 9 yes Figure 8 The main view;

[0035] Fig.10 1 is a schematic diagram of the overall structure of the clamping claw in the embodiment provided by the present invention;

[0036] Fig.11 is a front view of the clamping claw in the embodiment provided by the present invention;

[0037] Fig.12 is a top view of the clamping claw in the embodiment provided by the present invention;

[0038] Fig.13 1 is a schematic diagram of the overall structure of the left clamping claw in the embodiment provided by the present invention;

[0039] Fig.14 is a front view of the left clamping claw in the embodiment provided by the present invention;

[0040] Fig.15 is a left side view of the left clamping claw in the embodiment provided by the present invention;

[0041] Fig.16 It is a top view of the left clamping claw in the embodiment provided by the present invention. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the implementation mode of the present application clearer, the following will be combined with the implementation mode of the present application. Figures 1 to 16 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but only represents the selected embodiments of the present application. In the description of the present application, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] like Figures 1 to 3 As shown, a human body support device for working on an overhead line includes a clamping hook 1 and a safety protection frame 2. The safety protection frame 2 includes two main pipes 20 arranged in parallel with each other, and a plurality of cross braces 21 are arranged between the two main pipes 20. The cross braces 21 are fixedly connected to the main pipes 20 through three-way joints 22. This is a relatively common structure. Both the cross braces and the main pipes are made of pipes, such as aluminum alloy pipes, etc., which can reduce the weight of the entire device and facilitate carrying. The two sides of the bottom cross brace 21 are respectively fixedly provided with pedal joints 23, and the two sides between the two pedal joints 23 are rotatably provided with pedal tubes 24. The pedal tube 24 can be rotated upward along the pedal joint 23, so that it can be folded for easy storage, carrying and transportation. A backrest joint 26 is fixedly provided on each of the two main pipes 20, and a backrest tube 25 is rotatably provided on the backrest joint 26. The backrest tube 25 is a U-shaped structure and can be rotated upward along the backrest joint 26 for easy storage, carrying and transportation. A parallel joint 28 is fixedly disposed on the upper part of the two main pipes 20, and a U-shaped connecting pipe 27 is fixedly disposed between the two parallel joints 28. Such a design makes the top structure stable without affecting the operation. A clamping hook 1 is also fixedly disposed on the upper part of the two main pipes 20.

[0047] like Figures 4 to 12As shown, the clamping hook 1 includes a hook body 10, a rotating shaft 11, a clamping claw 12, a tension spring 13 and a cover plate 14. The hook body 10 includes a main working part 100 and a connecting part 101. The main working part 100 is a semi-circular hollow structure with one side open. The hook body 10 is made in one piece, and the hollow structure is convenient for arranging a clamping structure inside it, thereby reducing the manufacturing cost. A wire groove 102 is provided through the center of the main working part 100. The wire groove 102 is a long groove structure, which divides the main working part 100 into an inverted U-shaped structure. One end of the wire groove 102 is connected to the lower edge of the main working part 100. Its main function is to accommodate the overhead cable. The function of the long groove structure is to ensure that the cable has enough depth when inserted to prevent it from falling off. The bottom of the main working part 100 is perpendicular to the open surface and has two rotating shaft holes 103. The two rotating shaft holes 103 are symmetrically located on both sides of the wire groove 102. The rotating shafts 11 are fixed in the rotating shaft holes 103 respectively. The two rotating shafts 11 are rotatably provided with clamping claws 12. Tension spring ears 104 are fixedly provided on the two inner side walls of the main working part 100. There are two clamping claws 12, which have the same structure and are symmetrical to each other. The left clamping claw 120 is located on the left rotating shaft of the wire trough 102, and the right clamping claw 121 is located on the right rotating shaft of the wire trough 102. The two clamping claws 12 can rotate along the rotating shaft 11 and can clamp the cables inserted into the wire trough 102. The left clamping claw 120 and the right clamping claw 121 are respectively connected to the tension spring ears 104 through their corresponding tension springs 13. The two clamping claws 12 can achieve a bistable state through the force of the tension springs 13, combined with the wire trough 102 with a long slot structure, and can better lock the cables. A connecting part 101 is fixedly provided on one side of the bottom of the U-shaped main working part 100. A protective frame connecting hole 107 is provided at the bottom of the connecting part 101. The safety protective frame 2 is fixedly connected to the clamping hook 1 by bolts passing through the protective frame connecting hole 107. The bolt connection can well realize assembly or disassembly, facilitate production, processing and transportation, and reduce costs. A grounding wire connecting hole 108 is provided on the outer wall of the connecting part 101. The grounding wire connecting hole 108 is connected to the grounding wire 3 by passing bolts. The entire clamping hook 1 is made of conductive material. By connecting with the grounding wire, electric shock accidents can be prevented, and the safety of the device can be improved. The cover plate 14 is covered on one side of the hook body 10.

[0048] The structures and shapes of the left clamping claw 120 and the right clamping claw 121 are the same, and the two can be interlaced and matched with each other like a hairpin. Since the two have the same structure, in order to be simple and clear, only the left clamping claw 120 is described in detail here, and the structure of the right clamping claw 121 is the same as that of the left clamping claw 120.

[0049] like Figures 13-16As shown, the left clamping claw 120 is an S-shaped structure, and a top groove 1201 is provided on the top of the left clamping claw 120. The top groove 1201 divides the top of the left clamping claw 120 into at least two claw fingers 1200. A cable semi-arc groove 1202 is provided on the lower side of the claw finger 1200. A sliding groove 1203 is provided through the left clamping claw 120, and the sliding groove 1203 is located at the root of the claw finger 1200. Through the cooperation of the claw fingers 1200 and the cable semi-arc groove 1202 on the two clamping claws, the entire structure can well realize the opening and locking of the cable. The cable semi-arc groove 1202 plays a role of limiting and clamping when locking, and acts as a fulcrum for pushing downward when disengaging, and the entire clamping claw rotates along the rotating shaft to both sides. A tension spring ear buckle 1204 is fixedly provided on the inner side of the left clamping claw 120. The bottom end of the left clamping claw 120 is provided with a bottom groove 1207, which corresponds to the top groove 1201. The bottom groove 1207 divides the bottom end of the left clamping claw 120 into at least two bottom support arms 1205. The ends of the bottom support arms 1205 are connected to each other and provided with support slopes 1206. The support slopes 1206 can match and correspond with the inner side wall of the main working part 100 when the entire left clamping claw 120 rotates outward. The function of the bottom support arms 1205 and the support slopes 1206 is to limit the inner side wall of the main working part 100 when the clamping claw 12 releases the cable to prevent it from swinging and causing misalignment. The rotating shaft 11 is arranged in the sliding groove 1203.

[0050] Among them, it should be noted that the radius of the above-mentioned cable semi-arc groove 1202 is equal to or less than the diameter of the cable. The hook body 10 is made of cast iron. The sliding groove 1203 is a long groove structure. The widths of the top groove 1201 and the bottom groove 1207 are equal and greater than the thickness of the claw finger 1200 and the bottom support arm 1205. A reinforcing support protrusion 105 is also provided on the top inner wall of the main working part 100. The reinforcing support protrusion 105 is located obliquely above the wire groove 102. When the clamping claw 12 clamps the cable and rotates upward, its top and the reinforcing support protrusion 105 conflict with each other, which can increase the suspension strength. The opening side of the main working part 100 is also provided with a cover plate fixing threaded hole 106. The cover plate 14 is also provided with a corresponding screw through hole for fixing the cover plate 14. The safety protection frame 2 is made of aluminum alloy pipe.

[0051] When in use, the clamping hook 1 is hung on the overhead cable, and the cable moves upward along the wire groove 102 (equivalent to the hook moving downward). When the cable reaches the middle part of the wire groove 102, it contacts the left clamping claw 120 and the right clamping claw 121 and continues to move upward, while pushing the claws of the left clamping claw 120 and the right clamping claw 121 to move upward. At this time, the left clamping claw 120 and the right clamping claw 121 rotate outward along their respective rotating shafts 11. Since the cable is squeezed by the left clamping claw 120 and the right clamping claw 121, the two left clamping claws 120 and the right clamping claw 121 slide inward along their respective sliding grooves (1203) and further clamp the cable. When the left clamping claw 120 and the right clamping claw 121 rotate to a certain extent, they conflict with the strengthening support protrusion 105 above them and cannot continue to rotate. At this time, the tension spring also forms a stable state with the new sliding groove position again. By clamping the left clamping claw 120 and the right clamping claw 121, the entire device can be prevented from rotating, sliding or swinging on the overhead cable, which can ensure that the operator can complete the online operation safely and quickly. When disassembly is required, the device is lifted up, and the cable contacts the bottom of the cable semi-arc groove (1202) of the left clamping claw 120 and the right clamping claw 121, generating a downward pressure on the bottom of the two, and the left clamping claw 120 and the right clamping claw 121 rotate downward along their respective rotation axes and return to their original state under the action of the tension spring, and finally completes the cable detachment operation.

[0052] The present invention has a clamping hook 1 fixedly arranged on the top of the safety protection frame 2. The clamping hook 1 can be hung on the overhead cable and has the function of preventing rotation and swinging. It is very convenient to hang and take, and also has a grounding protection function. In addition, the safety protection frame 2 is made of aluminum alloy pipes and can be folded, which is convenient to carry and transport. It has a reasonable design, ingenious structure, convenient operation, good stability, and is easy to assemble and repair.

Claims

1. A human body support device for working on an overhead line, characterized in that: It comprises a clamping hook (1) and a safety protection frame (2); The safety protection frame (2) comprises two main pipes (20) arranged in parallel with each other, a plurality of cross braces (21) are arranged between the two main pipes (20), and the cross braces (21) are fixedly connected to the main pipes (20) via three-way joints (22); The two sides of the bottommost cross brace (21) are respectively fixedly provided with pedal joints (23), and the two sides between the two pedal joints (23) are rotatably provided with pedal tubes (24); A backrest joint (26) is fixedly arranged on each of the two main pipes (20), and a backrest pipe (25) is rotatably arranged on the backrest joint (26); A parallel joint (28) is fixedly disposed on the upper part of each of the two main pipes (20), and a U-shaped connecting pipe (27) is fixedly disposed between the two parallel joints (28); A clamping hook (1) is also fixedly provided on the upper part of each of the two main pipes (20); The clamping hook (1) comprises a hook body (10), a rotating shaft (11), a clamping claw (12), a tension spring (13) and a cover plate (14); the hook body (10) comprises a main working part (100) and a connecting part (101); the main working part (100) is a semicircular hollow structure with one side open; A wire groove (102) is provided through the center of the main working part (100), and the wire groove (102) is a long groove structure, which divides the main working part (100) into an inverted U-shaped structure; two rotating shaft holes (103) are provided at the bottom of the main working part (100) perpendicular to the open surface, and the two rotating shaft holes (103) are symmetrically located on both sides of the wire groove (102); the rotating shafts (11) are respectively fixed in the rotating shaft holes (103); the clamping claws (12) are rotatably penetrated on the two rotating shafts (11); tension spring hanging ears (104) are fixedly provided on the two inner side walls of the main working part (100); There are two clamping claws (12), which have the same structure and are symmetrical to each other; a left clamping claw (120) located on the left rotating shaft of the wire slot (102) and a right clamping claw (121) located on the right rotating shaft of the wire slot (102); the two clamping claws (12) can rotate along the rotating shaft (11) and can clamp the cables inserted into the wire slot (102); the left clamping claw (120) and the right clamping claw (121) are respectively connected to the tension spring hanging ears (104) through their corresponding tension springs (13); The connecting portion (101) is fixedly provided on one side of the bottom of the U-shaped main working portion (100); a protective frame connecting hole (107) is provided at the bottom of the connecting portion (101); the safety protective frame (2) is fixedly connected to the clamping hook (1) by bolts passing through the protective frame connecting hole (107); a grounding wire connecting hole (108) is provided on the outer wall of the connecting portion (101); the grounding wire connecting hole (108) is connected to the grounding wire (3) by bolts; The cover plate (14) is arranged on one side of the hook body (10); The left clamping claw (120) is in an S-shaped structure, and a top groove (1201) is provided on the top of the left clamping claw (120), and the top groove (1201) divides the top of the left clamping claw (120) into at least two claw fingers (1200), and a cable semi-arc groove (1202) is provided on the lower side of the claw finger (1200), and the radius of the cable semi-arc groove (1202) is equal to or less than the diameter of the cable, and a sliding groove (1203) is provided through the left clamping claw (120), and the sliding groove (1203) is located at the root of the claw finger (1200); A tension spring ear buckle (1204) is fixedly provided on the inner side of the left clamping claw (120); a bottom groove (1207) is provided at the bottom end of the left clamping claw (120), and the bottom groove (1207) corresponds to the top groove (1201), and the bottom groove (1207) divides the bottom end of the left clamping claw (120) into at least two bottom support arms (1205), and the ends of the bottom support arms (1205) are connected to each other and are provided with support inclined surfaces (1206), and the support inclined surfaces (1206) can match and correspond to the inner side wall of the main working part (100) when the entire left clamping claw (120) rotates outward; The rotating shaft (11) is inserted into the sliding groove (1203), and the sliding groove (1203) is a long groove structure.

2. The device for supporting a human body for working on an overhead line according to claim 1, characterized in that: The hook body (10) is made of cast iron.

3. The device for supporting a human body for working on an overhead line according to claim 1, characterized in that: The widths of the top groove (1201) and the bottom groove (1207) are equal and greater than the thickness of the claw finger (1200) and the bottom support arm (1205).

4. The device for supporting a human body for working on an overhead line according to claim 1, characterized in that: A reinforcing support protrusion (105) is also provided on the top inner side wall of the main working part (100). The reinforcing support protrusion (105) is located obliquely above the wire groove (102). When the clamping claw (12) clamps the cable and rotates upward, its top and the reinforcing support protrusion (105) contact each other, which can increase the suspension strength.

5. The device for supporting a human body for working on an overhead line according to claim 1, characterized in that: The opening side of the main working part (100) is also provided with a cover plate fixing threaded hole (106); The cover plate (14) is also provided with corresponding screw through holes for fixing the cover plate (14).

6. The device for supporting a human body for working on an overhead line according to claim 1, characterized in that: The safety protection frame (2) is made of aluminum alloy pipe.

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