CN205488640U - Novel couple formula earth connection - Google Patents

Abstract

The utility model provides a novel hook-type grounding wire, which includes an insulating rod, a grounding wire, a grounding rod and a wire clip. The wire clip includes an inverted U-shaped hook body and two clamping pieces. Symmetrically arranged in the hook body, there are two accommodating grooves arranged symmetrically above the inside of the hook body, the upper end of each clamping piece is set in the corresponding accommodating groove, and in each accommodating groove, a spring, the lower end of each clamping piece is hinged with the hook body; it also includes a rotating base, the rotating base includes a support plate, a drive motor and a transmission box, the output shaft of the transmission box is a hollow shaft, and one end of the insulating rod is arranged on The output shaft of the transmission box is in and slidingly matched with the output shaft, and a tightening handle is arranged on the output shaft. After the grounding wire is hung on the transmission line, it has a high clamping force on the transmission line, which can effectively prevent the clamping sheet from being separated from the transmission line.

Description

New hook type grounding wire

technical field

The utility model mainly relates to a grounding wire used in electric power construction operations, in particular to a novel hook-type grounding wire.

Background technique

The hook-type grounding wire is an indispensable safety tool for electrical work, and a safety barrier to protect power line construction and maintenance personnel. The hook-type grounding wire is mainly composed of an insulating rod, a wire clamp, a grounding wire and a grounding rod. One end of the grounding wire is connected to the wire clamp, and the other end is connected to the grounding rod. During the construction of the power line, the staff holds the insulating rod and hangs the wire clip on the transmission line, and at the same time inserts the grounding rod into the ground; in this way, during the construction or maintenance of the power line, it can avoid the damage caused by static electricity, induction electricity, reverse transmission, etc. Dangerous voltages and arcs caused by misoperations such as electricity or abnormal sudden calls will cause physical injury to workers.

However, there are still the following deficiencies in the current hook-type grounding wire:

1. Due to the long grounding wire, it takes a lot of time for the staff to manually wind the grounding wire around the insulating rod or remove the grounding wire from the insulating rod, and manual winding of the grounding wire can easily lead to irregular winding. phenomenon, resulting in damage to the ground wire.

2. The hook-type grounding wire is not easy to carry, and the staff needs to carry the operating lever to carry it as a whole.

3. The clamping strength of the wire clamp to the transmission line is not enough, so the safety of construction and maintenance is not very reliable.

Utility model content

In order to solve the deficiencies of the current technology, the utility model combines the existing technology and starts from practical application to provide a new type of hook-type grounding wire. After the grounding wire is hung on the transmission line, it has a higher clamping force on the transmission line , which can effectively prevent the clamping piece from being separated from the transmission line, and meanwhile, the winding of the grounding wire is convenient, quick and easy to carry.

In order to achieve the above object, the technical scheme of the utility model is as follows:

The new hook-type grounding wire includes an insulating rod, a grounding wire, a grounding rod and a wire clamp. The wire clamp is detachably fixed on the insulating rod, one end of the grounding wire is fixed on the wire clamp, and the other end of the grounding wire is fixedly connected to the ground The wire clip includes an inverted U-shaped hook body and two clamping pieces, the two clamping pieces are symmetrically arranged in the hook body, and two receiving grooves are arranged symmetrically above the inside of the hook body. The upper end of the holding piece is arranged in the corresponding accommodating groove, and a spring connected with the holding piece is respectively arranged in each accommodating groove, and the lower end of each holding piece is hinged with the hook body; a rotating base is also included, and the The rotating base includes a support plate, a drive motor and a transmission box. A universal wheel with a foot brake is arranged under the support plate. The drive motor and the transmission box are installed on the support plate. The input shaft of the transmission box is arranged horizontally. The output shaft of the transmission box is set vertically, and the drive motor is connected with the input shaft of the transmission box through a coupling. A tightening handle is provided on the output shaft, and the tightening handle is threadedly matched with the output shaft. Turning the tightening handle can make the tightening handle extend into the inside of the output shaft to tighten the insulating rod.

The wire clip also includes two guard plates, the two guard plates are respectively arranged at the two ends below the hook body, the guard plates are hingedly connected with the hook body, and a torsion spring is arranged at the hinge joint of the guard plate and the hook body.

The two clamping pieces are arranged in a figure-eight shape, and each clamping piece is provided with a sawtooth clamping surface. When the transmission line is clamped between the two clamping pieces, the spring is compressed, and the transmission line and the clamping contact with the serrated gripping surface of the blade.

The threaded fit between the wire clamp and the insulating rod.

One end of the insulating rod disposed inside the output shaft is provided with a chamfer.

The lower end of the insulating rod is covered with a PVC insulating sleeve.

The PVC insulating sleeve is provided with anti-slip lines and anti-slip bumps.

The beneficial effects of the utility model are:

1. The structure of the utility model is simple, easy to carry and easy to operate. Using the structure of the utility model can provide a higher clamping force for the transmission line, which increases the safety of construction and maintenance.

2. The utility model can automatically wind the grounding wire, which saves time and effort in operation, and does not cause the grounding wire to be wound irregularly and easily damaged.

Description of drawings

Accompanying drawing 1 is the overall structure of the utility model;

Accompanying drawing 2 is the utility model wire clip structural representation;

Labels shown in the attached drawings: 1. Wire clamp; 2. Insulation rod; 3. PVC insulation sleeve; 4. Tighten the handle; 5. Output shaft; 6. Transmission box; 7. Drive motor; 8. Support plate; 9 , universal wheel; 10, ground wire; 11, ground rod; 12, accommodation groove; 13, hook body; 14, torsion spring;

detailed description

The utility model will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

As shown in Figures 1 and 2, the new hook-type grounding wire includes an insulating rod 2, a grounding wire 10, a grounding rod 11, and a wire clamp 1. The wire clamp 1 is detachably fixed on the insulating rod 2, and the grounding wire One end of the wire 10 is fixed on the wire clamp 1, and the other end of the grounding wire 10 is fixedly connected to the ground rod 11. The wire clamp 1 includes an inverted U-shaped hook body 13 and two clamping pieces 16, and the two clamping pieces 16 Symmetrically arranged in the hook body 13, two accommodating grooves 12 are symmetrically arranged above the inside of the hook body 13, and the upper end of each clamping piece 16 is arranged in the corresponding accommodating groove 12, and each accommodating groove 12 is also respectively A spring 17 connected to the clamping piece 16 is set, and the lower end of each clamping piece 16 is hinged with the hook body 13; a rotating base is also included, and the rotating base includes a support plate 8, a drive motor 7 and a transmission box 6, so A universal wheel 9 with a foot brake is provided below the support plate 8, the drive motor 7 and the transmission box 6 are installed on the support plate 8, the input shaft of the transmission box 6 is horizontally arranged, and the output shaft 5 of the transmission box 6 is vertical Set, the driving motor 7 is connected with the input shaft of the transmission case 6 through a coupling, the output shaft 5 of the transmission case 6 is a hollow shaft, and one end of the insulating rod 2 is arranged in the output shaft 5 of the transmission case 6 and slides with the output shaft 5 Cooperate, on output shaft 5, be provided with tightening handle 4, described tightening handle 4 and output shaft 5 are threadedly matched, and rotation tightening handle 4 can make tightening handle 4 extend into output shaft 5 inside and tighten insulating rod 2.

The wire clip 1 of the utility model is used for hanging on the power transmission line. The insulating rod 2 is detachably connected with the wire clip 1, which is convenient for carrying after disassembly. Rotate so that the grounding wire 10 is wound after use, reducing manual workload and avoiding damage to the grounding wire 10 . Before carrying out construction or maintenance work on the transmission line, the ground rod 11 is inserted into the ground, and the staff holds the insulating rod 2 and hangs the wire clamp 1 on the transmission line, because the lower part of the insulating rod 2 is inserted into the output shaft 5 of the transmission box 6 Inside, when the tightening handle 4 is loosened, the insulating rod 2 can slide in the output shaft 5, so when the staff operates the insulating rod 2, the output shaft 5 can provide a radial limit for the insulating rod 2, avoiding the insulation rod 2 Swing increases the difficulty and labor intensity of construction. The clamping piece 16 on the wire clamp 1 is used to clamp the transmission line. By operating the insulating rod 2 to rise, the inverted U-shaped hook body 13 is placed above the transmission line. 1 When moving downward from above the transmission line, the transmission line gradually enters the inverted U-shaped hook body 13. In order to further improve the clamping performance of the wire clamp 1, the following scheme is preferred: the two clamping pieces 16 are arranged in a figure-eight shape, A sawtooth clamping surface is provided on each clamping piece 16. When the power transmission line is clamped between two clamping pieces 16, the spring 17 is compressed, and the power transmission line and the sawtooth clamping of the clamping piece 16 Face-to-face contact; when the transmission line is in contact with the clamping piece 16 and the wire clamp 1 continues to move down, since the upper end of the clamping piece 16 is connected to the lower end of the spring 17 as a hinged structure, the upper end of the clamping piece 16 on the left side moves to the left , the upper end of the clamping piece 16 at the right end moves to the right, and at this time the spring 17 is compressed to the maximum, so the elastic force of the spring 17 on the clamping piece 16 is also the largest, so that the clamping piece 16 provides the largest clamping force on the transmission line The holding force prevents the power transmission line from breaking away from the clamping sheet 16. In addition, the clamping piece 16 is provided with a sawtooth clamping surface connected to the power transmission line, which can increase the friction between the power transmission line and the clamping piece 16, and further improve the stability of the clamping. After the wire clamp 1 is successfully clamped on the transmission line, the tightening handle 4 is rotated to tighten the tightening handle 4 against the insulating rod 2, so that the insulating rod 2 is fixed in the output shaft 5. At this time, the insulating rod 2 will not The wire clamp 1 provides downward gravity, and at the same time, the wire clamp 1 provides a certain supporting force, which further increases the clamping stability of the wire clamp 1 . Therefore, after the utility model is hung on the transmission line, it has a higher clamping force on the transmission line, which can effectively prevent the clamping piece 16 from being separated from the transmission line, and then improve the safety of the operators during the construction and maintenance of the power line. safety.

After the construction or maintenance work is completed, loosen the tightening handle 4, operate the insulating rod 2 to disengage the wire clamp 1 from the power transmission line, and then tighten the tightening handle 4 again to fix the insulating rod 2. By starting the drive motor 7, the drive motor 7 The output shaft 5 on the transmission box 6 drives the insulating rod 2 to rotate. At this time, the operator only needs to hold the grounding wire 10 to wind the grounding wire 10 on the insulating rod 2. The efficiency is very high, and it can save manpower and prevent grounding. Tangled phenomenon of thread 10.

Preferably, the wire clamp 1 also includes two guard plates 15, and the two guard plates 15 are respectively arranged at the two ends below the hook body 13, the guard plates 15 are hingedly connected with the hook body 13, and the guard plates 15 and the hook body 13 are hingedly connected. A torsion spring 14 is provided at the hinge. When the guard plate 15 is not subjected to external force, the torsion spring 14 keeps the guard plate 15 in a horizontal state, and when the guard plate 15 is subjected to an external force, the torsion spring 14 can rotate upwards or downwards, so the wire clamp 1 is hung on the transmission line , through the force exerted by the operator, when the transmission line is in contact with the protection plate 15, the protection plate 15 is reversed upward. It is in a horizontal position under force and placed under the power transmission line, so the guard plate 15 can prevent the wire clamp 1 from accidentally falling off the power transmission line.

Preferably, the lower end of the insulating rod 2 is covered with a PVC insulating sleeve 3; the PVC insulating sleeve 3 is provided with anti-slip lines and anti-slip bumps. The setting of PVC insulating cover 3 is convenient for the staff to hold insulating pole 2 and carry out operation.

Claims (7)

1. A new type of hook-type grounding wire, including an insulating rod (2), a grounding wire (10), a grounding rod (11) and a wire clamp (1), and the wire clamp (1) is detachably fixed on the insulating rod (2) Above, one end of the grounding wire (10) is fixed on the wire clamp (1), and the other end of the grounding wire (10) is fixedly connected to the grounding rod (11). It is characterized in that: the wire clamp (1) includes an inverted U Type hook body (13) and two clamping pieces (16), the two clamping pieces (16) are symmetrically arranged in the hook body (13), and two accommodating pieces are arranged symmetrically above the inside of the hook body (13). slot (12), the upper end of each clamping piece (16) is arranged in the corresponding accommodation groove (12), and a spring ( 17), the lower end of each clamping piece (16) is hinged with the hook body (13); it also includes a rotating base, which includes a support plate (8), a drive motor (7) and a transmission box (6), A universal wheel (9) with a foot brake is provided below the support plate (8), the drive motor (7) and transmission box (6) are installed on the support plate (8), and the input of the transmission box (6) The shaft is arranged horizontally, the output shaft (5) of the transmission box (6) is vertically arranged, the drive motor (7) is connected with the input shaft of the transmission box (6) through a shaft coupling, and the output shaft (5) of the transmission box (6) It is a hollow shaft, and one end of the insulating rod (2) is set in the output shaft (5) of the transmission box (6) and is slidably fitted with the output shaft (5), and a tightening handle (4) is provided on the output shaft (5) , the tightening handle (4) is threadedly matched with the output shaft (5), and the rotating tightening handle (4) can make the tightening handle (4) extend into the output shaft (5) to tighten the insulating rod (2). 2. The novel hook-type grounding wire according to claim 1, characterized in that: the wire clamp (1) also includes two guard plates (15), and the two guard plates (15) are respectively arranged on the hook body (13 ) below, the guard plate (15) is hingedly connected with the hook body (13), and a torsion spring (14) is provided at the hinged part of the guard plate (15) and the hook body (13). 3. The novel hook-type grounding wire as claimed in claim 1, characterized in that: the two clamping pieces (16) are arranged in a figure-eight shape, and a sawtooth clamping surface is provided on each clamping piece (16). When the transmission line is clamped between the two clamping pieces (16), the spring (17) is compressed, and the transmission line is in contact with the sawtooth clamping surfaces of the clamping pieces (16). 4. The novel hook-type grounding wire according to claim 1, characterized in that: the wire clamp (1) is threadedly fitted with the insulating rod (2). 5. The novel hook-type ground wire according to claim 1, characterized in that: one end of the insulating rod (2) disposed inside the output shaft (5) is provided with a chamfer. 6. The novel hook-type ground wire according to claim 1, characterized in that: the lower end of the insulating rod (2) is covered with a PVC insulating sleeve (3). 7. The novel hook-type ground wire according to claim 6, characterized in that: the PVC insulating sleeve (3) is provided with anti-slip lines and anti-slip bumps.