CN203607569U - A ground wire head restraint - Google Patents

Abstract

A ground wire head restraint of the utility model relates to an operation tool connecting a ground wire, and a technical problem solved is that the ground wire head restraint which improves working efficiency and working safety is provided; the technical scheme employed comprises the following steps: an operating lever, a hook body, an adjustment sheet used for connecting the operating lever and the hook body, a hook head and a screw are comprised; the hook body is provided with a ground wire screw nut used for fixing the ground wire; the hook head is movably connected with the hook body through a pin; one end of the hook head is connected with the top end of the screw, and the other end of the hook head can form a free end forming a closed contact with the hook body; a screw nut sleeve sleeves a connection position between the screw and the hook head; a direction changing apparatus is arranged between the bottom end of the screw and the operating lever; and the direction changing apparatus is a universal shaft coupler. The ground wire head restraint is widely applicable to the field of power transmission on-site inspection and maintenance.

Description

A ground wire chuck

technical field

The utility model relates to a clamp head for grounding wires, which relates to an operation tool for connecting grounding wires.

Background technique

In the maintenance work of power lines, in order to ensure the safety of operation, it is necessary to reliably ground the line to be repaired before the maintenance; Tongue clamps are commonly used on straight poles and towers. When connecting on tension poles and towers, because the line is not horizontal, the double tongue clamps cannot be bent. In actual use, it is very inconvenient and time-consuming to connect.

In addition, because the cross-sectional area of the steel-cored aluminum stranded wire of the transmission line is different, it is necessary to equip various types of double-tongue clamps, which will not only increase the cost, but also make it difficult to achieve complete matching in actual work. As a result, the contact between the wire and the clamp is too tight or too loose, resulting in unstable grounding, which makes the operation process a potential safety hazard, and even endangers the life safety of the operator.

Utility model content

The utility model overcomes the deficiencies in the prior art, and the technical problem to be solved is: to provide a grounding wire chuck which improves work efficiency and work safety.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is a kind of ground wire clip, which includes an operating rod, a hook body, an adjustment piece for connecting the operating rod and the hook body, a hook head and a screw rod, and the hook body There is a grounding wire nut for fixing the grounding wire, the hook head is movably connected with the hook body through a pin shaft, one end of the hook head is connected with the top end of the screw rod, and the other end of the hook head can be formed with the hook body The free end of the closed contact is covered with a nut sleeve at the connection part of the screw rod and the hook head, and a direction changing device is arranged between the bottom end of the screw rod and the operating rod.

The direction changing device is a universal joint.

The adjusting piece is fixedly connected with the shackle provided on the top end of the operating rod through a lock nut.

Compared with the prior art, the utility model has the beneficial effects that: the clamping head of the grounding wire in the utility model can swing and be fixed within a certain angle, realizing the function of grounding wires adapting to different inclinations; at the same time, through A universal shaft connector is set between the rod and the screw rod, and the rotation of the operating rod drives the rotation of the screw rod, so that the nut sleeve is pushed upward, and the free end of the hook head is retracted inward to form a closed contact with the hook body, and the wire is pressed together , to achieve good contact between the ground wire clip and the wire, and can adapt to wires with different wire diameters to ensure reliable grounding; the above ground wire clip has a simple structure and low manufacturing cost.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1 is the operating rod, 2 is the hook body, 3 is the adjustment piece, 4 is the lock nut, 5 is the hook head, 6 is the screw rod, 7 is the nut sleeve, 8 is the direction changing device, and 9 is the ground wire nut , 10 is the ground wire.

Detailed ways

Embodiments of the utility model are described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, a grounding wire chuck includes an operating rod 1, a hook body 2, an adjustment piece 3 for connecting the operating rod 1 and the hook body 2, a hook head 5 and a screw rod 6, the hook body 2 A grounding wire nut 9 for fixing the grounding wire is provided on the top, the hook head 5 is movably connected with the hook body 2 through a pin shaft, one end of the hook head 5 is connected with the top end of the screw rod 6, and the other end of the hook head 5 In order to form a free end in closed contact with the hook body, a nut sleeve 7 is sleeved on the connecting part of the screw rod 6 and the hook head 5 , and a direction changing device 8 is arranged between the bottom end of the screw rod 6 and the operating rod 1 .

The operating rod 1 is made of insulating material, and multi-sections are superimposed into a telescopic structure, which can adapt to the operation requirements of different heights; the direction changing device 8 adopts a universal shaft coupling. The screw rod 6 can be driven to rotate through the cardan shaft coupling; the adjustment plate 3 is fixedly connected with the operating rod 1 through the locking nut 4, and the adjustment of the angle between the hook body 2 and the operating rod 1 can be realized by adjusting the locking nut 4 Purpose.

The working principle of the utility model is: when installing a grounding wire on an overhead power transmission line, first securely fix the reliable grounding wire 10 on the hook body 2 through the grounding wire nut 9, loosen the lock nut 4, and adjust the hook After the angle between the body 2 and the operating rod 1 is adjusted, tighten the lock nut 4. Through the above adjustment, the grounding wire chuck can adapt to wires with different inclinations.

Hook the hook head 5 onto the wire that needs to be grounded, rotate the operating lever 1, and the operating lever 1 drives the screw rod 6 to rotate through the direction changing device 8, so that the nut sleeve 7 is pushed upwards, and the free end of the hook head 5 is driven to retract inwards and connect with the hook. The body 2 forms a closed contact, cooperates to compress the wires, realizes good contact between the ground wire chuck and the wires, and can adapt to wires of different wire diameters to ensure reliable grounding.

After the maintenance work is completed, when it is necessary to disassemble the grounding wire mounted on the overhead transmission line, reversely rotate the operating lever 1, thereby driving the screw mandrel 6 to rotate, the nut sleeve 7 is retracted downward, and the hook head 5 releases the wire, and the wire can be removed. Lower the hook.

After the above-mentioned improvement on the grounding wire clip, maintenance personnel can not only easily hook the grounding wire clip to the wire that needs to be grounded, but also easily remove the grounding wire at one time, thereby reducing operating time and Labor intensity, reducing the workload of maintenance personnel.

At the same time, the use of the improved ground wire chuck can also greatly shorten the power outage preparation work time of the transmission line, resulting in good social benefits.

The utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiments, and can also be made without departing from the purpose of the utility model within the scope of knowledge possessed by those of ordinary skill in the art. Variations.

Claims (3)

1. an earth connection dop, comprise action bars (1), coupler body (2), for the adjustment sheet (3) of attended operation bar (1) and coupler body (2), gib head (5) and screw mandrel (6), it is characterized in that: on described coupler body (2), be provided with the earth connection nut (9) for dead earth line, described gib head (5) is flexibly connected with coupler body (2) by bearing pin, described gib head (5) one end is connected with the top of screw mandrel (6), the other end of described gib head (5) is to form the closed free end contacting with coupler body (2), be set with nut sleeve (7) at screw mandrel (6) and the connecting portion of gib head (5), between the bottom of described screw mandrel (6) and action bars (1), be provided with deviator (8).

2. a kind of earth connection dop according to claim 1, is characterized in that: described deviator (8) is universal shaft coupling.

3. a kind of earth connection dop according to claim 2, is characterized in that: described adjustment sheet (3) is fixedly connected with the shackle that action bars (1) top arranges by locking nut (4).