A portable grounding device for electric power construction

Abstract

The present invention relates to the technical field of electric power equipment, and provides a portable electric power construction grounding device, comprising an insulating operating rod, a clamping portion for clamping a cable, the clamping portion comprising an inverted L-shaped structure and a horizontal plate slidably arranged on the vertical section of the inverted L-shaped structure, the horizontal plate being arranged on the side of the vertical section of the inverted L-shaped structure facing the horizontal section of the inverted L-shaped structure, the horizontal section, the vertical section and the horizontal plate enclose a clamping interval for clamping the cable, the clamping portion is located at one end of the insulating operating rod, and a winding assembly for winding a pulling rope is arranged at the other end of the clamping portion, the end of the pulling rope away from the winding assembly is connected to the horizontal plate, and the horizontal plate is fixedly connected to the grounding wire. The present invention fixes the grounding wire by the horizontal plate, clamps the cable in the clamping interval of the clamping portion, and the size of the clamping interval is adjusted by pulling the horizontal plate by the pulling rope, so that the device is easy to operate, simple in structure, and the hydraulic cylinder is abandoned, thereby relatively reducing the overall weight of the device.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, in particular to a portable electric power construction grounding device. Background Art

[0002] The safety issues of power construction are receiving more and more attention. In the process of power engineering construction and renovation, the equipment needs to be grounded to prevent electric shock accidents. The grounding device is a device to ensure the safety of workers when voltage unexpectedly appears on the power-off equipment and lines. It is an important and necessary tool in power construction and maintenance. The portable short-circuit grounding device is a temporary grounding device commonly used in power maintenance and construction.

[0003] Most of the existing grounding devices have complex structures, and are driven by methods such as hydraulic cylinders, making the equipment more bulky. Summary of the invention

[0004] The purpose of the present invention is to provide a portable electric power construction grounding device to solve the defect that the device needs to be driven by a hydraulic cylinder in the prior art, making the device relatively bulky.

[0005] To achieve the above-mentioned purpose, an embodiment of the present invention provides the following technical solutions: a portable electric power construction grounding device, comprising an insulating operating rod, and also comprising a clamping portion for clamping a cable line, the clamping portion comprising an inverted L-shaped structure and a horizontal plate slidably arranged on the vertical section of the inverted L-shaped structure, the horizontal plate is arranged on the side of the vertical section of the inverted L-shaped structure facing the horizontal section of the inverted L-shaped structure, the horizontal section, the vertical section and the horizontal plate enclose a clamping interval for clamping the cable line, the clamping portion is located at one end of the insulating operating rod, and the other end of the clamping portion is provided with a winding assembly for winding up a pulling rope, the pulling rope is connected to the horizontal plate at one end away from the winding assembly, and the horizontal plate is fixedly connected to the grounding wire.

[0006] Furthermore, the vertical section is provided with a slide groove arranged along its vertical direction, and a slider is installed at one end of the horizontal plate, and the slider is slidably arranged in the slide groove; the pulling rope passes through the slide groove and is connected to the slider.

[0007] Furthermore, a fixed pulley is installed on the side of the vertical section away from the horizontal plate, and the pulling rope is partially wrapped around the fixed pulley.

[0008] Furthermore, it also includes a connecting frame for mounting the clamping portion, the connecting frame is arranged at one end of the insulating operating rod away from the winding assembly, and one end of the vertical section away from the horizontal section is installed on the connecting frame.

[0009] Furthermore, the connection frame is provided with a rotation fixing device for enabling the clamping portion to adjust the angle of clamping the cable.

[0010] Furthermore, the rotation and fixing device includes a rectangular frame arranged close to the inner wall of the connecting frame and a mounting block arranged in the rectangular frame, a through hole penetrating one of the opposite surfaces of the mounting block is provided in the middle of the mounting block, a spline shaft is passed through the through hole, a torsion spring is fixedly connected between the spline shaft and the end surface of the through hole, the torsion spring is sleeved on the spline shaft, and the connecting frame is rotatably arranged at the end of the insulating operating rod away from the winding assembly with the spline shaft as the rotating axis.

[0011] Furthermore, it also includes a limiting structure for limiting the rotation of the connecting frame.

[0012] Furthermore, the limiting structure includes two arc-shaped spring bars respectively arranged on opposite inner walls of the rectangular frame, an inclined groove arranged on the mounting block, and a socket for inserting a key to clamp the spline shaft. The two spring bars are arranged opposite to each other and are bent toward each other. The two spring bars are arranged in the middle of the rectangular frame and divide the rectangular frame into two chambers. The mounting block is arranged in one of the chambers.

[0013] Furthermore, a connecting spring is provided between the transverse plate and the connecting frame.

[0014] Furthermore, the winding assembly includes a mounting seat, a winding roller rotatably arranged on the mounting seat, a ratchet sleeved on the outer wall of the winding roller, and a rotating handle for rotating the winding roller. The mounting seat is arranged at one end of the insulating operating rod away from the clamping portion.

[0015] Compared with the prior art, the beneficial effects of the present invention are: a portable power construction grounding device, which fixes the grounding wire through a horizontal plate and clamps the cable in the clamping interval of the clamping part, and the size of the clamping interval is adjusted by pulling the horizontal plate with a pulling rope, so that the device is easy to operate and has a simple structure, and the hydraulic cylinder is abandoned, thereby relatively reducing the overall weight of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a portable electric power construction grounding device provided by an embodiment of the present invention;

[0017] Figure 2 An enlarged schematic diagram of a clamping portion of a portable electric power construction grounding device provided by an embodiment of the present invention;

[0018] Figure 3 A schematic structural diagram of a rotating fixing device of a portable electric power construction grounding device provided by an embodiment of the present invention;

[0019] In the accompanying drawings: 1-insulating operating rod; 2-connecting frame; 3-roller; 4-U-shaped frame; 5-rotating fixing device; 6-inverted L-shaped structure; 7-fixed pulley; 8-pulling rope; 9-rotating handle; 10-ratchet; 11-pawl; 12-cross plate; 13-connecting spring; 14-bayonet; 50-rectangular frame; 51-elastic bar; 52-mounting block; 53-through hole; 54-spline shaft; 55-bevel groove; 56-jack; 57-key; 58-limiting spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 , Figure 2 as well as Figure 3 The embodiment of the present invention provides a portable power construction grounding device, including an insulating operating rod 1, a clamping part for clamping a cable, the clamping part includes an inverted L-shaped structure 6 and a horizontal plate 12 slidably arranged on the vertical section of the inverted L-shaped structure 6, the horizontal plate 12 is arranged on the side of the vertical section of the inverted L-shaped structure 6 facing the horizontal section of the inverted L-shaped structure 6, the horizontal section, the vertical section and the horizontal plate 12 enclose a clamping interval for clamping the cable, the clamping part is located at one end of the insulating operating rod 1, and a winding assembly for winding a pulling rope 8 is installed at the other end of the clamping part, the pulling rope 8 is connected to the horizontal plate 12 at one end away from the winding assembly, and the horizontal plate 12 is fixedly connected to the grounding wire. In this embodiment, the method of driving the horizontal plate 12 to move to change the size of the clamping interval is redesigned, and a series of defects brought by the hydraulic cylinder are abandoned. Specifically, the horizontal plate 12 connected thereto is pulled by the pulling rope 8 to drive the horizontal plate 12 to slide upward along the vertical section of the inverted L-shaped structure 6, thereby achieving the purpose of adjusting the size of the clamping interval of the clamping portion, so as to clamp cables of different sizes to cooperate with the grounding wire to complete the grounding. In order to facilitate the operation of the pulling rope 8, a winding assembly is used to wind up the pulling rope 8. Usually, the insulating operating rod 1 is tilted, and people only need to operate the winding assembly at the lower end of the insulating operating rod 1 to move the horizontal plate 12. The operation is very simple and efficient. Preferably, after the winding is completed, when the position of the horizontal plate 12 needs to be locked, the unwinding action of the winding assembly can be limited by a limiter. The specific subsequent embodiments will be described in detail. Preferably, the pulling rope 8 adopts a nylon rope, and of course a steel wire rope can also be adopted, which is not limited in this embodiment.

[0022] The following are specific embodiments:

[0023] To optimize the above solution, please refer to Figure 2 , the vertical section is provided with a slide groove arranged along its vertical direction, and a slider is installed at one end of the horizontal plate 12, and the slider is slidably arranged in the slide groove; the pulling rope 8 passes through the slide groove and is connected to the slider. In the present embodiment, the sliding of the horizontal plate 12 is achieved through the cooperation of the slide groove and the slider. Of course, in addition to this sliding method, other sliding methods are also possible, and the present embodiment does not limit this. Preferably, a fixed pulley 7 is installed on the side of the vertical section away from the horizontal plate 12, and the pulling rope 8 is partially covered on the fixed pulley 7. In the present embodiment, the fixed pulley 7 is used to make pulling more labor-saving and improve work efficiency. The fixed pulley 7 is installed at a position of the vertical section close to the horizontal section.

[0024] As an optimization solution of the embodiment of the present invention, please refer to Figure 1 , Figure 2 and Figure 3The device further comprises a connection frame 2 for mounting the clamping part, the connection frame 2 is arranged at one end of the insulating operating rod 1 away from the winding assembly, and one end of the vertical section away from the horizontal section is mounted on the connection frame 2. In this embodiment, the clamping part is mounted on the insulating operating rod 1 through the connection frame 2. Preferably, a rotation fixing device 5 is provided in the connection frame 2 for enabling the clamping part to adjust the angle of the cable. The connection frame 2 is also provided to facilitate the installation of the rotation fixing device 5. Preferably, the rotating fixing device 5 includes a rectangular frame 50 arranged close to the inner wall of the connecting frame 2 and a mounting block 52 arranged in the rectangular frame 50, a through hole 53 penetrating one of the opposite surfaces of the mounting block 52 is provided in the middle of the mounting block 52, a spline shaft 54 ​​is passed through the through hole 53, a torsion spring is fixedly connected between the spline shaft 54 ​​and the end surface of the through hole 53, and the torsion spring is sleeved on the spline shaft 54, and the connecting frame 2 is rotatably arranged at the end of the insulating operating rod 1 away from the winding assembly with the spline shaft 54 ​​as the rotating axis. Preferably, the device also includes a limiting structure for limiting the rotation of the connecting frame 2, the limiting structure including two arc-shaped spring bars 51 respectively provided on opposite inner walls of the rectangular frame 50, an inclined groove 55 provided on the mounting block 52, and a socket 56 for inserting a key 57 to clamp the spline shaft 54, the two spring bars 51 are arranged opposite to each other and are bent toward each other, the two spring bars 51 are provided in the middle of the rectangular frame 50, and divide the rectangular frame 50 into two chambers, and the mounting block 52 is provided in one of the chambers. In this embodiment, when the mounting block 52 is located in the upper chamber, since the spline shaft 54 ​​is connected to the through hole 53 on the mounting block 52 by a torsion spring, the connecting frame 2 can rotate around the spline shaft 54, which facilitates the horizontal plate 12 and the inverted L-shaped structure 6 to adjust the direction to clamp the cable. When the cable is stuck between the two, the insulating operating rod 1 is pulled downward to squeeze the mounting block 52 through the two spring bars 51 to the bottom. The key 57 can limit the spline shaft 54 ​​through the inclined groove 55 and the jack 56, so that the connecting frame 2 cannot rotate. After the pawl 11 is removed, the horizontal plate 12 moves downward under the action of the connecting spring 13. After the device is taken out, it is reset by manually pulling out the key 57. Preferably, the through hole 53 is a stepped through hole, and the key 57 is a T-shaped plug rod. Preferably, a U-shaped frame 4 is set at the end of the insulating operating rod 1 away from the winding assembly, so that the two ends of the spline shaft 54 ​​can be respectively rotatably connected to the two ends of the U-shaped frame 4, which is convenient for structural optimization. Preferably, a limit spring 58 is sleeved on the T-shaped insertion rod.

[0025] As an optimization solution of the embodiment of the present invention, please refer to Figure 1 and Figure 2A connecting spring 13 is provided between the transverse plate 12 and the connecting frame 2. In the present embodiment, the connecting spring 13 can provide a certain degree of support to the transverse plate 12, so that the pulling rope 8 can more easily pull up the transverse plate 12.

[0026] As an optimization solution of the embodiment of the present invention, please refer to Figure 1 The winding assembly includes a mounting seat, a winding roller 3 rotatably arranged on the mounting seat, a ratchet 10 sleeved on the outer wall of the winding roller 3, and a rotating handle 9 for rotating the winding roller 3. The mounting seat is arranged at one end of the insulating operating rod 1 away from the clamping portion. In the present embodiment, the winding method is the existing conventional winding method, and the winding principle thereof will not be described in detail here. Preferably, the above-mentioned limiting member is a ratchet 11, and physical limiting can be performed by the ratchet 11 being engaged with the ratchet 10, which can stabilize the size of the clamping interval. When separation is required, the bolt is removed, the ratchet 11 is pulled outward, the winding roller 3 rotates, the pulling rope 8 is loosened, and the cross plate 12 moves downward under the action of the connecting spring 13 to separate from the cable. The winding roller 3 is preferably a plastic winding roller. Preferably, the bolt is a plastic five-star handle bolt, and the ratchet 11 is connected to it through a through hole 53, and the plastic five-star handle bolt is easy to rotate. Preferably, the limiting member is welded on the surface of the mounting seat and fits against the outer wall of the pawl 11 , so as to limit the position of the pawl 11 .

[0027] As an optimization solution of the embodiment of the present invention, the outer wall of the insulating operating rod 1 is fixedly connected with a half frame, which is convenient for taking the whole device. Preferably, the surface of the inverted L-shaped structure 6 and the horizontal plate 12 are fixedly connected with a fluorescent plate, which is convenient for observing the position and judging whether it is clamped.

[0028] As an optimization solution of the embodiment of the present invention, please refer to Figure 1 and Figure 2 The horizontal section and the horizontal plate 12 of the inverted L-shaped structure 6 are both provided with bayonet holes 14, the two bayonet holes 14 are arranged opposite to each other, and the inner walls of the bayonet holes 14 are evenly distributed and fixed with spring ejectors, so that the bayonet holes 14 are stably connected to the cable and are convenient for grounding.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable power construction grounding device, comprising an insulating operating rod, characterized in that: The utility model also includes a clamping part for clamping the cable line, wherein the clamping part includes an inverted L-shaped structure and a horizontal plate slidably arranged on the vertical section of the inverted L-shaped structure, the horizontal plate is arranged on the side of the vertical section of the inverted L-shaped structure facing the horizontal section of the inverted L-shaped structure, and the horizontal section, the vertical section and the horizontal plate enclose a clamping interval for clamping the cable line, the clamping part is located at one end of the insulating operating rod, and the other end of the insulating operating rod is provided with a winding assembly for winding up the pulling rope, the end of the pulling rope away from the winding assembly is connected to the horizontal plate, and the horizontal plate is fixedly connected to the grounding wire; the device also includes a connecting frame for the clamping part to be installed, and the connecting frame is provided with a rotating fixing device for enabling the clamping part to adjust the angle of clamping the cable line, and the rotating fixing device includes a rectangular frame arranged close to the inner wall of the connecting frame. and a mounting block arranged in the rectangular frame. The device also includes a limiting structure for limiting the rotation of the connecting frame, the limiting structure includes two arc-shaped elastic bars respectively arranged on opposite inner walls of the rectangular frame, an oblique groove arranged on the mounting block, and a socket for a key to be inserted to clamp the spline shaft. The two elastic bars are arranged opposite to each other and are bent toward each other. The two elastic bars are arranged in the middle of the rectangular frame and divide the rectangular frame into two chambers. The mounting block is arranged in one of the chambers. A through hole is provided in the middle of the mounting block, which passes through one of the opposite surfaces of the mounting block. A spline shaft is passed through the through hole. A torsion spring is fixedly connected between the spline shaft and the end face of the through hole. The torsion spring is sleeved on the spline shaft. The connecting frame is rotatably arranged at the end of the insulating operating rod away from the winding assembly with the spline shaft as the rotating axis.

2. A portable power construction grounding device as claimed in claim 1, characterized in that: The vertical section is provided with a slide groove arranged along its vertical direction, and a slider is installed at one end of the horizontal plate, and the slider is slidably arranged in the slide groove; the pulling rope passes through the slide groove and is connected to the slider.

3. A portable power construction grounding device as claimed in claim 2, characterized in that: A fixed pulley is installed on the side of the vertical section away from the horizontal plate, and the pulling rope is partially wrapped around the fixed pulley.

4. A portable power construction grounding device as claimed in claim 3, characterized in that: The connecting frame is arranged at one end of the insulating operating rod away from the winding assembly, and one end of the vertical section away from the horizontal section is installed on the connecting frame.

5. A portable power construction grounding device as claimed in claim 1, characterized in that: A connecting spring is provided between the transverse plate and the connecting frame.

6. A portable power construction grounding device as claimed in claim 1, characterized in that: The winding assembly includes a mounting seat, a winding roller rotatably arranged on the mounting seat, a ratchet sleeved on the outer wall of the winding roller, and a rotating handle for rotating the winding roller. The mounting seat is arranged at one end of the insulating operating rod away from the clamping portion.

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