CN203895875U - 10kV insulation wire clamp - Google Patents

Abstract

The utility model relates to a 10kV insulation wire clamp, and especially relates to cutting wire clamp suitable for live-line working; the 10kV insulation wire clamp comprises a hook, a wire clamp and a screw rod; one end of the screw rod is connected with a hang ring, and the other end of the screw rod penetrates a hook pedestal and is fixedly connected with the wire clamp arranged in the hook; one side of the hook is provided with a press line screw nut; a middle portion of the wire clamp is provided with a first mounting hole and a second mounting hole; a blade extruding outside an upper surface of the wire clamp is arranged in the first mounting hole; a lower end of the blade is fixed on a push rod connected with a spring; the spring is arranged in the second mounting hole, a top end of the spring is clamped on a boss of the push rod, and a bottom end of the spring is clamped on a bottom of the second mounting hole of the wire clamp. Wiring operation of the insulation wire can be completed by using the 10kV insulation wire clamp without peeling off the wire; electric connection is excellent; the 10kV insulation wire clamp saves man power and material, and is convenient in usage.

Description

10kV insulated wire clamping device

technical field

The utility model relates to a wire clamp, in particular to a 10kV insulated wire clamping device suitable for live work.

Background technique

Live work refers to a method of maintenance and testing on high-voltage electrical equipment without power failure, which is of great significance for reducing power-off time. At present, during the live fire connection operation, the cable must be stripped first, and then connected to the wire clamp. When peeling, using the insulating rod peeling tool requires two people to work together on the rod, and four sets of insulating operating rods are used for operation. When working on the rod, two operators need to adjust their positions many times, and the operation needs to be adjusted according to the situation. Use different tools to operate. When stripping the insulation layer, two people need to pull and turn to perform the stripping work. If the operation is not done properly when stripping the insulation layer, it is easy to cause the stripping knife and the wire to get stuck. You also need to use the operating lever to adjust The position of the blade is not easy to remove. If the adjustment is not good, the stripping knife needs to be removed and the position of the blade should be adjusted again, and the insulation layer of the insulated wire should be stripped again. The procedure is cumbersome and complicated.

Utility model content

According to the deficiencies of the prior art above, the purpose of this utility model is to provide a 10kV insulated wire clamping device, which can complete the wiring operation without peeling the insulated wires, has good electrical connection, saves manpower and material resources, and is easy to use.

The 10kV insulated wire clamping device described in the utility model includes a hook, a clamp and a screw. One end of the screw is connected to the hanging ring, and the other end passes through the base of the hook and is fixedly connected to the clamp installed in the hook. There is a first installation hole and a second installation hole in the middle of the wire clamp, the first installation hole is equipped with a blade protruding from the upper surface of the wire clamp, the lower end of the blade is fixed on a push rod, and the push rod is connected with a spring, The spring is installed in the second mounting hole, its upper end is clamped on the boss of the push rod, and its lower end is clamped at the bottom of the second mounting hole of the wire clamp.

Connect the insulating operating rod through the hanging ring, turn the insulating operating rod to rotate the screw connected to the hanging ring, the screw pushes the wire clamp up to clamp the wire, and as the screw is screwed in, the blade in the wire clamp Cutting, when the insulation layer of the wire is cut, the blade contacts the wire core, so that the two are connected to achieve the purpose of wiring. When the blade cuts the insulating layer and contacts the wire core, the resistance of the blade increases greatly, thereby pushing the spring at the bottom of the blade to compress, preventing the blade from cutting the wire core. Since there is no need for additional peeling operations, it greatly saves manpower and material resources and is easy to use.

Two symmetrical guide rods are installed on both sides of the lower part of the wire clip. The guide rods are inserted into the base of the hook, and the wire clip is prevented from rotating through the guide rods.

The upper end of the wire clip and the blade is arc-shaped corresponding to the shape of the wire.

A shoulder is provided at the transition between the first installation hole and the second installation hole, and the inner diameter of the shoulder is smaller than the outer diameter of the boss.

The center position of the blade is collinear with the centerline of the wire and the centerline of the screw.

When the insulated wire is connected to the fire, fix the lead wire on the crimping nut, connect the negative side with the knife switch and the gram, use the insulating operating rod to connect the hanging ring, hang the hook on the wire, turn the operating rod, and hang the ring Drive the screw to rotate, the screw pushes the wire clamp up, gradually clamps the wire, the blade on the wire clamp and the insulation layer gradually close and cut, when the insulation layer of the wire is cut, the blade contacts the wire core, and the two are connected. If the screw continues to push at this time, because the cutting resistance between the blade and the metal wire core is greatly increased, the blade remains still and the spring is compressed to prevent the blade from damaging the wire core. At the same time, the elastic force of the spring makes the blade and the wire core closely contact to ensure a good electrical connection. .

Compared with the prior art, the utility model has the beneficial effects of:

This 10kV insulated wire clamping device is equipped with a blade on the wire clamp, and the wiring operation can be completed without peeling the insulated wire. The electrical connection is good, saving manpower and material resources, and it is easy to use; the blade is connected to the spring to avoid damage to the wire core by the blade. At the same time, good electrical contact is ensured; the structure is simple and the production cost is low.

Description of drawings

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

In the figure: 1. hanging ring; 2. screw; 3. guide rod; 4. hook; 5. clamp; 6. shoulder; 7. blade; 8. wire; ; 11, the boss; 12, the spring; 13, the second mounting hole; 14, the crimping nut.

Detailed ways

As shown in Figure 1, this 10kV insulated wire clamping device includes a hook 4, a wire clamp 5 and a screw 2, one end of the screw 2 is connected to the hanging ring 1, the hanging ring 1 is connected to the insulating operating rod, and the other end of the screw 2 passes through the hook 4 The base is fixedly connected with the wire clamp 5 arranged in the hook 4, the screw rod 2 is threadedly connected with the base of the hook 4, two symmetrical guide rods 3 are installed on both sides of the lower part of the wire clamp 5, and the guide rod 3 is inserted into the base of the hook 1. Make the clamp 5 move vertically.

One side of the hook 4 is provided with a crimping nut 14 through which the lead wires are connected. The middle part of the wire clamp 5 is provided with a first mounting hole 10 and a second mounting hole 13. The first mounting hole 10 is equipped with a blade 7 protruding from the upper surface of the wire clamp 5. The upper ends of the wire clamp 5 and the blade 7 are corresponding to the shape of the wire 8. arc, the lower end of the blade 7 is fixed on a push rod 9, the push rod 9 is connected with a spring 12, the spring 12 is installed in the second mounting hole 13, its upper end is stuck on the boss 11 of the push rod 9, and its lower end At the bottom of the second mounting hole 13 of the clip 5, a shoulder 6 is provided at the transition between the first mounting hole 10 and the second mounting hole 13. The inner diameter of the shoulder 6 is less than the outer diameter of the boss 11, and the shoulder 6 is provided with a gap. The table 11 can be inserted into the second installation hole 13 through the gap. The center position of the blade 7 is collinear with the center line of the wire 8 and the center line of the screw rod 2 .

When the insulated wire is connected to the fire, fix the lead wire on the crimping nut 14, connect the negative side with the knife switch and the gram, use the insulating operating rod to connect the hanging ring 1, hang the hook 4 on the wire 8, and turn the operation The rod, the hanging ring 1 drives the screw 2 to rotate, the screw 2 pushes the wire clamp 5 to move up, and gradually clamps the wire 8, the blade 7 on the wire clamp 5 and the insulation layer gradually close and cut, when the insulation layer of the wire 8 is cut Afterwards, blade 7 contacts with wire core, and both communicate. If the screw rod 2 continues to push at this time, because the cutting resistance between the blade 7 and the metal wire core is greatly increased, the blade remains still, and the spring 12 is compressed to prevent the blade 7 from damaging the wire core. At the same time, the elastic force of the spring 12 makes the blade 7 closely contact with the wire core. , to ensure a good electrical connection.

Claims (5)

1. A 10kV insulated wire clamping device, including a hook (4), a clamp (5) and a screw (2), one end of the screw (2) is connected to the hanging ring (1), and the other end passes through the base of the hook (4) and the The wire clamp (5) set in the hook (4) is fixedly connected, and the side of the hook (4) is provided with a crimping nut (14). The feature is that the middle part of the wire clamp (5) is provided with a first installation hole (10) and the second installation hole (13), the first installation hole (10) is equipped with a blade (7) protruding from the upper surface of the wire clamp (5), the lower end of the blade (7) is fixed on a push rod (9), and the top The rod (9) is connected with a spring (12), the spring (12) is installed in the second installation hole (13), its upper end is stuck on the boss (11) of the push rod (9), and its lower end is caught in the wire clip ( 5) The bottom of the second mounting hole (13). 2. The 10kV insulated wire clamping device according to claim 1, characterized in that two symmetrical guide rods (3) are installed on both sides of the lower part of the clamp (5), and the guide rods (3) are inserted into the hook ( 1) At the base. 3. The 10kV insulated wire clamping device according to claim 1, characterized in that: the upper ends of the clamp (5) and the blade (7) are arc-shaped corresponding to the shape of the wire (8). 4. The 10kV insulated wire clamping device according to any one of claims 1 to 3, characterized in that a shoulder (6) is provided at the transition between the first installation hole (10) and the second installation hole (13) ), the inner diameter of the shoulder (6) is smaller than the outer diameter of the boss (11). 5. The 10kV insulated wire clamping device according to any one of claims 1-3, characterized in that: the center position of the blade (7) is collinear with the center line of the wire (8) and the center line of the screw (2).