CN203950931U - Penetrating cable clamp - Google Patents

Abstract

Puncture clip. The utility model provides a piercing wire clamp with good sealing effect and solid effect on cables when piercing. It includes an insulating upper cover, an insulating lower cover, a cap sleeve, a connecting wire and a torque bolt assembly. The insulating upper cover and the insulating lower cover are respectively provided with a pair of arc-shaped sealing pads, and the sealing rubber pads are provided with a number of puncture holes. The blade also includes a solid device, the solid device includes an elastic sheet, a pair of slide rails, a solid support and some springs, the pair of slide rails are respectively arranged on the upper and bottom surfaces of the elastic sheet, and the solid support The spring is arranged on the elastic sheet, the sealing rubber pad is provided with a T-shaped chute, the surface of the solid support member opposite to the sealing rubber pad is provided with a number of balls, and the sealing rubber pad is provided with The limiting area is composed of several arc-shaped slots, and the slots run through the sealing rubber pad. The structure of the utility model has good sealing performance and improves the quality of the punctured cables.

Description

Piercing clip

technical field

The utility model relates to a cable connecting hardware in an electric power system, in particular to a puncture wire clamp.

Background technique

The insulation puncture clamp is mainly composed of an insulating shell, a puncture blade, a waterproof rubber pad, and a torque bolt. When connecting a cable branch, insert the branch cable into the branch cap and determine the branch position of the main line, and then use a socket wrench to tighten the screw on the clamp. Torque nut, with the tightening of the torque nut, the upper and lower insulators with piercing blades are gradually closed. At the same time, the arc-shaped sealing rubber pad wrapped around the piercing blades gradually clings to the cable insulation layer, and the piercing blades also begin to pierce the cable. Insulation layer and metal conductor to realize electric conduction.

On July 10, 2013, the National Patent Office announced a utility model patent named "Piercing Wire Clip" with the announcement number "CN 203056126 U". In this case, a waterproof The rubber pad is used to solve the problem of poor waterproof performance due to gaps in the clamping groove after the insulation upper cover and the insulation lower cover are closed. But this case still has the problem of poor water resistance on the two outer sides of the closed insulating upper cover and the insulating lower cover. At the same time, the cable is squeezed by the insulating upper cover and the insulating lower cover. Since the two sides are not restricted, it is easy to cause the cable to be crushed and deformed, or even flattened or broken, resulting in the risk of a short circuit in the cable.

On March 27, 2013, the National Patent Office announced an invention patent titled "Insulation Piercing Clip" with the publication number "CN 103001018 A". There are inclined clamping plates extending downwards at the connection, and straight clamping plates are extended upwards at the connection between the longitudinal sides of the insulating lower seat and the insulating upper cover, which enhances the connection sealing between the insulating upper cover and the insulating lower seat, and improves the insulation puncture line. clip reliability. However, the inclined clamping plate and the straight clamping plate in this case are respectively connected with the insulating upper cover and the insulating lower seat, and after closing, they do not go deep into the wire clamping groove, so they do not have the effect of solidifying the cables.

Utility model content

Aiming at the above problems, the utility model provides a puncture clamp with good sealing effect and solid effect on cables when puncturing.

The technical scheme of the utility model is: including an insulating upper cover, an insulating lower cover, a cap, a connecting wire and a torque bolt assembly for clamping or loosening the insulating upper cover and the insulating lower cover, the insulating upper cover and the insulating lower cover A pair of arc-shaped sealing rubber pads are respectively arranged in the lower insulating cover, and a plurality of puncture blades are arranged in the sealing rubber pads, and the cap sleeve is arranged on the lower insulating cover through the connecting wire, and is also movable on the lower insulating cover. Four sets of solid devices between the insulating upper cover and the insulating lower cover, the solid devices include elastic sheets, a pair of slide rails, solid supports and a number of springs, and the pair of slide rails are respectively arranged on the elastic sheets The upper and lower surfaces of the solid support member are arranged on the elastic sheet through the spring, and the solid support member is elastic and has a fan-shaped cross section;

The sealing rubber pad is provided with a T-shaped chute, the chute runs through the sealing rubber pad, and the slide rail is adapted to the chute;

The surface of the solid support member opposite to the sealing rubber pad is provided with a number of balls, and the sealing rubber pad is provided with a limiting area composed of a number of arc-shaped slots arranged through the sealing rubber. pad.

When the insulating upper cover and the insulating lower cover are closed under the action of the torque bolt assembly, two wire clamping grooves are formed between the insulating upper cover and the insulating lower cover.

Both ends of the solid support are chamfered.

The utility model utilizes the movable solid device with the insulating upper cover and the insulating lower cover. When in use, firstly the insulating upper cover and the insulating lower cover are used to support the cables (no need to puncture, only the insulating upper cover and the insulating lower cover are not Just loosen it), apply waterproof silicone grease on the upper and lower surfaces of the solid device, and insert the solid device along the chute. Since the two sides of the clamping groove formed between the insulating upper cover and the insulating lower cover are open, affected by the harsh outdoor environment, it will accumulate over time and endanger electric power safety. The solid device seals both sides of the wire clamping groove, so that the wire clamping groove forms a closed space in the circumferential direction. When the insulating upper cover and the insulating lower cover are gradually closed under the action of the torque bolt assembly, and the sealing rubber pads in the insulating upper cover and the insulating lower cover are against the solid support, the rollers on the solid support fall into the slot. The solid support is elastic, and as the upper insulating cover and the lower insulating cover are closed more and more tightly, the balls will slide down to the next slot, and the solid support will also move towards the direction of the elastic, ensuring that the solid support will hold the wire Cables, while preventing the cables from being squeezed to both sides, will not interfere with the insulation upper cover and the insulation lower cover piercing the cables.

The utility model has ingenious structural design and good sealing performance, and at the same time improves the quality of the punctured cable and improves the safety and reliability of the power system.

Description of drawings

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

Fig. 2 is a partial sectional view of Fig. 1;

In the figure, 1 is an insulating upper cover, 2 is an insulating lower cover, 3 is a torque bolt assembly, 4 is a piercing blade, 5 is a cap, 6 is a connecting wire, 7 is a solid device, 71 is an elastic piece, and 72 is a slide rail. 73 is a solid support, 74 is a spring, 75 is a ball, 8 is a sealing rubber pad, 81 is a chute, 82 is a limiting area, and 821 is a draw-in groove.

Detailed ways

As shown in Figure 1-2, the utility model includes an insulating upper cover 1, an insulating lower cover 2, a cap 5, a connecting wire 6 and a moment for clamping or loosening the insulating upper cover 1 and the insulating lower cover 2. The bolt assembly 3, the insulating upper cover 1 and the insulating lower cover 2 are respectively provided with a pair of arc-shaped sealing rubber pads 8, when the insulating upper cover 1 and the insulating lower cover 2 are under the action of the torque bolt assembly 3 When closed, two clamping grooves are formed between the insulating upper cover 1 and the insulating lower cover 2, a number of piercing blades 4 are arranged in the sealing rubber pad 8, and the cap 5 is arranged on the On the insulating lower cover 2.

It also includes four sets of solid devices 7 movable between the insulating upper cover 1 and the insulating lower cover 2, which are used to form the clamping groove into a closed space, and at the same time cover the insulating upper cover 1 and the insulating lower cover 2 When closed, the cable can be prevented from being squeezed to both sides of the wire clamping groove, which will cause the cable to be deformed and cause the cable to be short-circuited. Described solid device 7 comprises elastic sheet 71, a pair of slide rails 72, solid support 73 and some springs 74, and described pair of slide rails 72 is respectively arranged on the top and bottom surface of described elastic sheet 71, and described solid support 73 is provided on the elastic sheet 71 through the spring 74, and the solid support 73 is elastic and has a fan-shaped cross section. In order to facilitate the insertion of the solid device 7 and facilitate the smooth support of the solid support 73 against the cables, both ends of the solid support 73 are chamfered.

The sealing rubber pad 8 is provided with a T-shaped chute 81, the chute 81 runs through the sealing rubber pad 8, and the sliding rail 72 is adapted to the chute 81 so that the solid device 7 can move Type of installation or disassembly between the insulating upper cover 1 and the insulating lower cover 2.

After the insulating upper cover 1 and the insulating lower cover 2 are closed, in order to prevent the piercing blade from being punctured in place due to the restriction of the solid device 7, a surface of the solid support 73 opposite to the sealing rubber pad 8 is provided. There are several balls 75 , and the sealing rubber pad 8 is provided with a limiting area 82 composed of several arc-shaped slots 821 , and the slots 821 run through the sealing rubber pad 8 .

Claims (3)

1. Piercing clamps, including an insulating upper cover, an insulating lower cover, a cap, a connecting wire, and a torque bolt assembly for clamping or loosening the insulating upper cover and the insulating lower cover, the insulating upper cover and the insulating lower cover A pair of arc-shaped sealing rubber pads are respectively arranged in the cover, and a plurality of piercing blades are arranged in the sealing rubber pads, and the cap sleeve is arranged on the insulating lower cover through the connecting wire, and it is characterized in that it also includes a movable Four sets of solid devices arranged between the insulating upper cover and the insulating lower cover, the solid devices include elastic sheets, a pair of slide rails, solid supports and a number of springs, and the pair of slide rails are respectively arranged on the The upper and lower surfaces of the elastic sheet, the solid support is arranged on the elastic sheet through the spring, the solid support is elastic and has a fan-shaped cross section; The sealing rubber pad is provided with a T-shaped chute, the chute runs through the sealing rubber pad, and the slide rail is adapted to the chute; The surface of the solid support member opposite to the sealing rubber pad is provided with a number of balls, and the sealing rubber pad is provided with a limiting area composed of a number of arc-shaped slots arranged through the sealing rubber. pad. 2. The piercing clip according to claim 1, wherein when the insulating upper cover and the insulating lower cover are closed under the action of the torque bolt assembly, there is a gap between the insulating upper cover and the insulating lower cover. Form two clamping grooves. 3. The piercing clip according to claim 1, wherein both ends of the solid support are chamfered.