Security wire for overhead ground wire

Abstract

The invention discloses a security wire for an overhead ground wire, and the security wire comprises a grounding lead which is electrically connected with a hanging strip, and the hanging strip is disposed in a first protection cylinder. A through hole is formed in the first protective cylinder, parallel sliding grooves are formed in the upper side and the lower side of the through hole, clamping plates are arranged on the two sides, penetrating out of the width direction of the through hole, of the hanging strip, movable sliding blocks are fixedly arranged on the sides, facing the through hole, of the two clamping plates, the movable sliding blocks are arranged in the sliding grooves in a sliding mode, and the two movable sliding blocks are connected through an elastic spring; a guide plate is arranged on the first protection cylinder, two pulling ropes are arranged in the guide plate in a sliding mode, one end of each pulling rope is fixedly connected with the corresponding clamping plate, and the other end of each pulling rope is fixedly connected with a pulling ring. The problem that a security wire in the prior art is inconvenient for a worker to control and connect a corresponding line and a ground wire to realize temporary grounding is solved.

Description

Technical Field

[0001] The invention relates to the technical field of line detection, and in particular to a safety wire for an overhead ground wire. Background Art

[0002] During the existing power transmission operation, when the high-voltage lines or equipment are being repaired, in order to prevent sudden power supply or the adjacent high-voltage lines or equipment from generating induced voltage on the power-off lines or equipment, which may cause harm to the human body, or to prevent the induced voltage generated by the power-off maintenance equipment or lines from causing harm to the human body, a hanging personal safety line is usually used to temporarily ground the three-phase overhead line or busbar on the power supply side with a grounding wire, or to temporarily ground the relevant parts of the power-off maintenance lines or equipment with a grounding wire.

[0003] The existing throwing and hanging personal safety line is affected by factors such as the initial velocity of the worker and the environment at the time of throwing, and has great uncertainty. Therefore, the worker often needs to throw it multiple times before the grounding wire can be hung on a suitable line for use. When more lines need to be hung, the farthest line will increase the difficulty of the worker's throwing and hanging, and increase the number of times the worker throws and hangs, which brings great inconvenience to the worker's use. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is inconvenient for workers to control the connection between the corresponding line and the ground wire to achieve temporary grounding, and to provide a safety wire for an overhead ground wire.

[0005] The present invention solves the above-mentioned technical problems and adopts a technical solution of a safety wire for an overhead ground wire, comprising a grounding wire, the grounding wire is electrically connected to a hanging bar, and the hanging bar is arranged in a first protective tube;

[0006] The first protective tube is provided with a through hole, and parallel sliding grooves are provided on the upper and lower sides of the through hole, and clamping plates are provided on both sides of the through hole in the width direction of the hanging strip, and movable sliders are fixedly provided on the side of the two clamping plates facing the through hole, and the movable sliders are slidably arranged in the sliding grooves, and the two movable sliders are connected by elastic springs;

[0007] The first protective tube is provided with a guide plate, and two pulling ropes are slidably provided inside the guide plate. One end of the pulling rope is fixedly connected to the clamping plate, and the other end of the pulling rope is fixedly connected to a pull ring.

[0008] As a further optimization of the safety wire for an overhead ground wire of the present invention: the two clamping plates are rotatably connected to the opposite surfaces on the side facing away from the conductive layer with hinged rods, the opposite ends of the two hinged rods are rotatably connected to top pressure columns, and the two ends of the top pressure columns passing through the hinged rods are fixedly connected to top pressure blocks.

[0009] As a further optimization of the safety wire for an overhead ground wire of the present invention: sliding grooves are provided on the opposite surfaces of the two clamping plates, locking sliders are slid in the two sliding grooves, and the two locking sliders are clamped with the opposite surfaces of the hanging strips.

[0010] As a further optimization of the safety wire for an overhead ground wire of the present invention: a plurality of limiting nails are evenly and fixedly connected to the outer periphery of the first protective tube, and the limiting nails are arranged corresponding to the pull rings.

[0011] As a further optimization of the safety wire for an overhead ground wire of the present invention: the limiting nail is arranged in an L shape, and the longer end of the limiting nail is fixedly connected to the first protective tube.

[0012] As a further optimization of the safety wire for an overhead ground wire of the present invention: the first protective tube is fixedly connected to the second protective tube, the first protective tube and the second protective tube are fixedly connected with two ends of a holding handle at ends far away from each other, a first reel is rotatably provided in the first protective tube, the first reel is rotatably connected and electrically connected to the second reel rotatably provided in the second protective tube, a first reel is fixedly provided on the first reel, the first reel is fixedly connected to one end of a hanging bar, and the conductive layer is electrically connected to the first reel, a second reel is fixedly provided on the second reel, the second reel is fixedly connected to one end of a grounding wire, and the grounding wire is electrically connected to the second reel.

[0013] As a further optimization of the safety wire for an overhead ground wire of the present invention: the hanging bar includes a supporting bar and a conductive layer arranged on the bottom surface of the supporting bar.

[0014] As a further optimization of the safety wire for an overhead ground wire of the present invention: the end of the first reel facing away from the second reel passes through the first protective tube and is fixed with a driven gear, the driven gear is meshed with a driving gear, the driving gear is rotatably arranged on the first protective tube, and two ends of a first torsion spring are arranged on the opposite surfaces of the driving gear and the first protective tube.

[0015] As a further optimization of the safety wire for an overhead ground wire of the present invention: two ends of a second torsion spring are provided on both sides of the axial direction of the second protective tube and the second winding drum.

[0016] As a further optimization of the safety wire for an overhead ground wire of the present invention: the end of the grounding wire facing away from the second reel is fixedly connected to a clamping frame, and the grounding guide is electrically connected to the clamping frame, a clamping plate is slidingly provided in the clamping frame, and the clamping plate is rotatably connected to a tightening screw threadedly connected to the clamping frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention arranges two clamping plates to compress the support bar and the conductive layer included in the hanging bar, thereby deforming the support bar and the conductive layer into an arch shape. After that, the support bar and the conductive layer have a certain rigidity. Then, the staff can use the rigid support bar and the conductive layer to connect different numbers of lines at different positions to ground different numbers of lines at different positions, thereby protecting the work safety of the staff.

[0019] The present invention arranges a second torsion spring and a first torsion spring as power to reel in the grounding wire, the support bar and the conductive layer, thereby reducing the possibility of the excessively long grounding wire colliding with the equipment due to environmental factors and causing damage to the equipment, or colliding with the power line and causing injury to the staff. At the same time, it is also convenient for the staff to hold and move for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view structural schematic diagram of the first working state of the present invention;

[0021] Figure 2 It is a front view structural schematic diagram of the second working state of the present invention;

[0022] Figure 3 It is a schematic diagram of the front view structure of a part of the present invention;

[0023] Figure 4 It is a schematic diagram of the enlarged structure of A of the present invention;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the present invention;

[0025] Markings in the figure: 101, hanging plate; 102, supporting bar; 103, conductive layer; 201, clamping plate; 202, locking slider; 203, sliding groove; 204, moving slider; 205, elastic spring; 206, sliding groove; 207, reinforcement column; 301, pulling rope; 302, guide plate; 303, pull ring; 304, limiting nail; 401, protective shell; 402, driving gear; 403, driven gear Gear; 404, first reel; 405, first protective cylinder; 406, first torsion spring; 407, first reel; 5, gripping handle; 601, second protective cylinder; 602, second reel; 603, second torsion spring; 604, second reel; 701, grounding wire; 702, clamping frame; 703, clamping plate; 704, tightening screw; 801, hinged rod; 802, pressure column; 803, pressure block. DETAILED DESCRIPTION

[0026] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with embodiments, but the content of the present invention is not limited to the following embodiments.

[0027] like Figure 1 and Figure 3 As shown, a security wire for an overhead ground wire has a first protective tube 405 and a first reel 404 arranged in the first protective tube 405, the first reel 404 is electrically connected to a second reel 604 electrically connected to a grounding wire 701, a hanging bar is arranged on the first reel 404, the hanging bar includes a support bar 102 and a conductive layer 103 arranged at the bottom of the support bar 102 and electrically connected to the first reel 404, and a hanging plate 101 is fixedly arranged at one end of the support bar 102 that is away from the first reel 404 and passes through the first protective tube 405, and the hanging plate 101 can facilitate the staff to connect with the corresponding line to achieve a stable connection between the conductive layer 103 and the corresponding line, such as Figure 2 As shown, a clamping assembly is provided at the place where the first protective tube 405 corresponds to the support bar 102 passing through. The clamping assembly is controlled by the staff to clamp the support bar 102 and the conductive layer 103, so that the support bar 102 and the conductive layer 103 are deformed with the corresponding clamping assembly as the center, and the cross-section after deformation is arched. The deformed support bar 102 and the conductive layer 103 have a certain rigidity, and the process is similar to the process in which both sides of a paper have a certain hardness after being squeezed and deformed. Then, the staff can easily control the support bar 102 and the conductive layer 103 to move to different positions, and then the clamping of the clamping assembly can be relaxed to weaken or lose the rigidity of the support bar 102 and the conductive layer 103, so that the conductive layer 103 can be stably connected to the lines at different positions, and then the grounding wire 701 can be connected to the ground wire to realize the grounding operation of the corresponding line.

[0028] like Figure 1-4 As shown, the clamping assembly includes a through hole opened on the first protective tube 405, and parallel sliding grooves 206 are provided on the upper and lower sides of the through hole. The two sliding grooves 206 are provided corresponding to the positions where the support bar 102 passes through. A movable slider 204 slides in the sliding grooves 206. The movable slider 204 is connected by two elastic springs 205 provided in the sliding grooves 206. The two movable sliders 204 are fixedly connected to the two clamping plates 201 respectively. The opposite surfaces of the two clamping plates 201 correspond to the two sides of the support bar 102. The two clamping plates 201 are fixedly connected to the two clamping plates 201 respectively. The upper end of the plate 201 is fixedly connected to a pulling rope 301. The two pulling ropes 301 pass through the guide plate 302 arranged on the first protective tube 405 and are fixedly connected to a pulling ring 303. The setting of the pulling ring 303 can be convenient for the staff to pull, so that the two pulling ropes 301 are tightened to drive the two clamping plates 201 to overcome the elastic force of the elastic spring 205 and approach each other. Then, the support bar 102 and the conductive layer 103 can be clamped to make the two deformed and rigid, so that the staff can control their moving position to connect with the corresponding line.

[0029] The elastic spring 205 is disposed around the reinforcing column 207 fixed in the slide slot 206 to maintain the stability of the axial deformation of the elastic spring 205 along the reinforcing column 207 when being squeezed, so that the elastic spring 205 can stably drive the two clamping plates 201 to move away from each other.

[0030] Sliding grooves 203 are provided at the opposite ends of the two clamping plates 201, and locking sliders 202 are slidably connected in the two sliding grooves 203. The two locking sliders 202 are clamped on both sides of the support bar 102 and the conductive layer 103. The setting of the locking sliders 202 can assist the vertical deformation of the sides of the support bar 102 and the conductive layer 103, so that the staff can stably control the deformation of the support bar 102 and the conductive layer 103.

[0031] The two clamping plates 201 are rotatably connected to the opposite surfaces on the upper side of the guide plate 302, and the opposite ends of the hinged rods 801 on both sides are rotatably connected to the top pressure columns 802. Both ends of the top pressure columns 802 pass through the hinged rods 801 and are fixedly connected to the top pressure blocks 803. When the two clamping plates 201 approach each other, the two hinged rods 801 will push the top pressure blocks 803 downward. Subsequently, the top pressure blocks 803 will push the support bars 102 and the conductive layer 103 to deform while the clamping plates 201 approach each other, so that the support bars 102 and the conductive layer 103 can be stably deformed into a triangular shape, so as to further improve the rigidity of the support bars 102 and the conductive layer 103, thereby improving the sensitivity and convenience of the control operation of the staff.

[0032] Corresponding to the pull ring 303, there are multiple limiting nails 304 evenly arranged on the first protective tube 405. The pull ring 303 can be hung on the limiting nail 304 to facilitate the staff to lock the length of the support bar 102 and the conductive layer 103 extending out of the first protective tube 405 according to their own needs. At the same time, it is also convenient for the staff to control the force of pressing the support bar 102 and the conductive layer 103 according to the length of the support bar 102 and the conductive layer 103, and then adjust the rigidity of the support bar 102 and the conductive layer 103. Specifically, the limiting nail 304 is L-shaped, and the longer end of the limiting nail 304 is fixedly connected to the surface of the first protective tube 405, thereby maintaining the stability of the connection between the limiting nail 304 and the pull ring 303.

[0033] like Figure 5As shown, one end of the grounding wire 701 is fixed with and electrically connected to the second reel 604, the second reel 604 is rotatably connected to the second reel 602, the second reel 604 is rotatably connected and electrically connected to the first reel 404, a second reel 602 for winding up the grounding wire 701 is fixedly provided on the second reel 604, and the second reel 602 is provided with one end of a second torsion spring 603 on both sides of the axial direction of the second reel 604, the other ends of the two second torsion springs 603 surround the two end sides of the second reel 604, and are arranged on the inner wall of the corresponding side of the second protective tube 601, the arrangement of the two second torsion springs 603 can drive the second reel 602 to wind up the grounding wire 701, so as to facilitate the staff to hold and move, and at the same time reduce the impact caused by the grounding wire 701 being too long, that is, the grounding wire 701 is too long and collides with the equipment to cause damage to the equipment, or the possibility of causing harm to the staff due to environmental factors and connection with the power line.

[0034] One end of the grounding wire 701 facing away from the second protective tube 601 is fixed and electrically connected to a clamping frame 702, in which a clamping plate 703 slides, and the clamping plate 703 is rotatably connected to a tightening screw 704 threadedly connected to the clamping frame 702. Rotating the tightening screw 704 can make the clamping plate 703 slide in the clamping frame 702 to adapt to ground wires of different thicknesses, so that the grounding wire 701 can be stably grounded.

[0035] The second protective tube 601 is fixedly connected to the first protective tube 405. The first protective tube 405 and the second protective tube 601 are coaxially arranged. The outlet of the first protective tube 405 is arranged opposite to the outlet of the second protective tube 601, so as to facilitate the staff to pull out the grounding wire 701 or the grounding operation of the corresponding lines of the support bar 102 and the conductive layer 103. The first protective tube 405 and the second protective tube 601 are fixedly connected with a holding handle 5 at the corresponding pull ring 303. The holding handle 5 can facilitate the staff to hold the first protective tube 405 and the second protective tube 601 for use, and can also facilitate the staff to hold the support bar 102 and the conductive layer 103 to control them, so as to electrically connect the support bar 102 and the conductive layer 103 with the corresponding lines.

[0036] like Figure 3 and Figure 5As shown, a driven gear 403 is fixedly arranged at the end of the first reel 404 passing through the first protective tube 405, and the driven gear 403 is meshed with a driving gear 402. The driving gear 402 is rotatably arranged on the first protective tube 405, and a first torsion spring 406 is arranged between the opposite surfaces of the first protective tube 405 and the driving gear 402. The first torsion spring 406 can reset the driving gear 402 after rotation, so as to drive the first reel 404 to reel up the support strip 102 and the conductive layer 103, and the transmission ratio of the driving gear 402 to the driven gear 403 is three. After the conductive layer 103 is stretched for a long distance, the rotation amount of the first torsion spring 406 can be reduced through the transmission of the driving gear 402 and the driven gear 403, so that the support bar 102 and the conductive layer 103 can be more retracted into the first protective tube 405, and then it is convenient for the staff to perform grounding operations on the corresponding lines according to different situations. At the same time, it is also convenient for the staff to connect multiple corresponding lines for grounding operations, and the driving gear 402 and the driven gear 403 are both arranged in the protective shell 401, and the protective shell 401 is fixed on the first protective tube 405.

[0037] A first reel 407 for rolling up the support strip 102 and the conductive layer 103 is disposed on the first reel 404. The first reel 407 can stably roll up the support strip 102 and the conductive layer 103 to facilitate the staff to stretch, use, carry and transfer.

[0038] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A safety wire for an overhead ground wire, comprising a grounding conductor (701), characterized in that: The grounding wire (701) is electrically connected to a hanging bar (102, 103), and the hanging bar (102, 103) is arranged in the first protective tube (405); The first protective tube (405) is provided with a through hole, and the through hole is provided with parallel sliding grooves (206) on both sides of the upper and lower sides, and clamping plates (201) are provided on both sides of the connecting strips (102, 103) passing through the through hole in the width direction, and movable sliders (204) are fixedly provided on the side of the two clamping plates (201) facing the through hole, and the movable sliders (204) are slidably arranged in the sliding grooves (206), and the two movable sliders (204) are connected by elastic springs (205); A guide plate (302) is provided on the first protective tube (405), and two pulling ropes (301) are slidably provided inside the guide plate (302). One end of the pulling rope (301) is fixedly connected to the clamping plate (201), and the other end of the pulling rope (301) is fixedly connected to a pull ring (303).

2. The overhead ground wire protection wire as claimed in claim 1, characterized in that: The two clamping plates (201) are rotatably connected to the opposite surfaces on the side facing away from the conductive layer (103), and the opposite ends of the two hinged rods (801) are rotatably connected to the top pressure columns (802), and the two ends of the top pressure columns (802) passing through the hinged rods (801) are fixedly connected to the top pressure blocks (803).

3. The overhead ground wire protection wire as claimed in claim 1, characterized in that: The two clamping plates (201) are provided with sliding grooves (203) on the opposite surfaces thereof, locking sliders (202) are slidably disposed in the two sliding grooves (203), and the two locking sliders (202) are clamped with the opposite surfaces of the hanging bars (102, 103).

4. The overhead ground wire protection wire as claimed in claim 1, characterized in that: A plurality of limiting pins (304) are evenly and fixedly connected to the outer periphery of the first protective tube (405), and the limiting pins (304) are arranged corresponding to the pull ring (303).

5. The overhead ground wire protection wire as claimed in claim 4, characterized in that: The limiting nail (304) is L-shaped, and the longer end of the limiting nail (304) is fixedly connected to the first protective tube (405).

6. The overhead ground wire protection wire as claimed in claim 1, characterized in that: The first protective tube (405) is fixedly connected to the second protective tube (601), and the ends of the first protective tube (405) and the second protective tube (601) that are far away from each other are fixedly connected to two ends of the gripping handle (5). A first reel (404) is rotatably arranged in the first protective tube (405), and the first reel (404) is rotatably connected and electrically connected to a second reel (604) rotatably arranged in the second protective tube (601). A first reel (407) is fixedly arranged on the first reel (404), and the first reel (407) is fixedly connected to one end of the hanging strips (102, 103), and the conductive layer (103) is electrically connected to the first reel (404). A second reel (602) is fixedly arranged on the second reel (604), and the second reel (602) is fixedly connected to one end of a grounding wire (701), and the grounding wire (701) is electrically connected to the second reel.

7. The overhead ground wire protection wire as claimed in claim 1, characterized in that: The hanging bars (102, 103) comprise a supporting bar (102) and a conductive layer (103) arranged on the bottom surface of the supporting bar (102).

8. The overhead ground wire protection wire as claimed in claim 6, characterized in that: One end of the first reel (404) away from the second reel (602) passes through the first protective tube (405) and is fixed with a driven gear (403), the driven gear (403) is meshed with a driving gear (402), the driving gear (402) is rotatably arranged on the first protective tube (405), and two ends of a first torsion spring (406) are arranged on the opposite surfaces of the driving gear (402) and the first protective tube (405).

9. The overhead ground wire protection wire as claimed in claim 6, characterized in that: Two ends of a second torsion spring (603) are provided on both axial sides of the second protective tube (601) and the second winding tube (602).

10. The overhead ground wire protection wire as claimed in claim 6, characterized in that: One end of the grounding wire (701) facing away from the second reel (602) is fixedly connected to a clamping frame (702), and the grounding guide is electrically connected to the clamping frame (702). A clamping plate (703) is slidably provided inside the clamping frame (702), and the clamping plate (703) is rotationally connected to a tightening screw (704) threadedly connected to the clamping frame (702).

Images