CN204117627U - cable - Google Patents

Abstract

The utility model discloses a cable, including four conductors, there is the internal insulation cover every conductor outward, this cable still includes a square external insulation cover and an oversheath, four conductors of saying are located the external insulation cover of saying, the oversheath is located outside the external insulation cover, the oversheath outward surface of saying is circular, the internal surface is square with external insulation cover matched with, center department at the external insulation cover is equipped with a soft obturator, this soft obturator has four interior concave surfaces, every interior concave surface matches with a conductor and combines between one of them apex angle of concave surface and external insulation cover including the conductor restriction, cavity has in soft obturator center. The advantages of such a cable are as follows: each conductor of the four conductors is limited between the inner concave surface and one of the vertex angles of the outer insulating sleeve by the soft filling body, the positions of the conductors are relatively fixed, and the conductors are not easy to move, so that the adjacent conductors are separated all the time, the occurrence of short-circuit accidents is greatly reduced, and the safety is better.

Description

cable

technical field

I invented a cable.

Background technique

Cables are used a lot in the electrical field, and their function is to transmit electricity. The structure of a general cable is that the inside is a conductor and the outside is a sheath. The conductor and the outer sheath have insulating layers, braiding layers, shielding layers, etc. The problem with the current cables is that the conductors can move inside the outer sheath. During use Once there is a problem with the insulation outside the conductor, a short circuit will be formed as soon as the adjacent conductors come into contact. After the short circuit, it is easy to cause an accident. There will be an impact with the power terminal, which will damage the equipment, so this defect must be overcome.

Utility model content

The purpose of the invention of the utility model is to invent a cable which is not easy to short-circuit between conductors.

The cable invented by the utility model includes four conductors, each conductor has an inner insulating sheath, and the cable also includes a square outer insulating sheath and an outer sheath, and the four conductors are located on the outer insulating sheath. The outer sheath is located outside the outer insulating sheath. The outer surface of the outer sheath is circular, and the inner surface is square to match the outer insulating sheath. There is a soft filler in the center of the outer insulating sheath. The soft filling body has four inner concave surfaces, each inner concave surface matches with a conductor and confines the conductor between the inner concave surface and one of the top corners of the outer insulating sheath, and there is a hollow cavity in the center of the soft filling body.

A further solution is to provide four dovetail grooves on the outer surface of the outer sheath, up, down, left, and right, and the dovetail grooves are filled with fluorescer.

The advantages of this kind of cable are as follows: each of the four conductors is limited by the soft filler between its inner concave surface and one of the top corners of the outer insulating sheath, the position is relatively fixed and not easy to move, so that the adjacent conductors are always It is separated, which greatly reduces the occurrence of short-circuit accidents and has better safety.

Description of drawings

Fig. 1: the structural representation of embodiment 1 cable;

Fig. 2: the sectional view of embodiment 2 cable;

Relevant symbols in Figure 1 and Figure 2:

conductor 1;

Inner insulating sleeve 2;

Outer insulating sleeve 3;

outer sheath 4;

Soft filling body 5;

Inner concave surface 6;

Hollow cavity 7;

Dovetail groove 8;

Fluorescent agent9.

Detailed ways

Below by embodiment in conjunction with accompanying drawing, the utility model is further described.

Example 1:

The cable shown in Figure 1 includes four conductors 1, each conductor 1 has an inner insulating sheath 2 outside, and the cable also includes a square outer insulating sheath 3 and an outer sheath 4, said four conductors 1 Located in the outer insulating sheath 3, the outer sheath 4 is located outside the outer insulating sheath 3, the outer surface of the outer sheath 4 is circular, and the inner surface is a square shape matched with the outer insulating sheath 3. 3 is provided with a soft filling body 5 at the center, the soft filling body 5 has four concave surfaces 6, each concave surface 6 matches with a conductor 1 and confines the conductor 1 between the concave surface 6 and the outer insulating sheath 3 Between one of the corners, there is a hollow cavity 7 in the center of the soft filling body 5 .

In the above cable: Conductor 1 is made of aluminum wire, copper wire or steel-aluminum double-strand wire; outer sheath 4 is made of rubber; outer insulating sheath 3 and inner insulating sheath 2 are made of wear-resistant polyethylene material or low-halogen polyethylene material , the soft filling body 5 adopts silicone resin. Obviously, such a material is not the only one, and there are other options in the prior art. For example, Taobao discloses insulating sleeves with different materials.

In the above cable, its advantage is that each of the four conductors 1 is limited by the soft filler 5 between its inner concave surface 6 and one of the top corners of the outer insulating sheath 3, the position is relatively fixed, and it is not easy to move , so that the adjacent conductors 1 are always separated, which greatly reduces the occurrence of short-circuit accidents and has better safety; on the other hand, there is a soft filler 5 at the center of the layout of the four conductors 1, and the soft filler 5 It has a hollow cavity 7, so that when the cable is externally pressed, the soft filler 5 will deform, on the one hand, it acts as a buffer, so that the conductor 1 and the insulation are not easily damaged; on the other hand, because the soft filler 5 is under compression 5 is also between four conductors 1 all the time, thereby can avoid short-circuit accident as far as possible.

Example 2:

The cable shown in Fig. 2 is different from Embodiment 1 in that four dovetail grooves 8 are arranged on the outer surface of the outer sheath 4, and the dovetail grooves 8 are filled with a fluorescent agent 9. Fluorescent agent 9 is cold light source, can emit light, but can not generate heat, can adopt vinyl type fluorescent agent, can adopt other fluorescent agent that buys on the market by adopting. What makes this cable different is that it has four luminous strips, up, down, left, and right, showing the outline in all directions. It can emit light when used at night and play a warning role. Especially during construction, it can improve construction safety. The structure of the dovetail groove 8 is very good, the fluorescer 9 is not easy to fall out when sprayed in, and it is easy to solidify and produce; in addition, careful inspectors, teachers and the general public can find that the place where the dovetail groove 8 is set is a little thicker, and it is in the middle Thick and thin on both sides, the depth of the dovetail groove 8 is just in the middle big and the two sides are small, so that the thickness of the whole outer sheath 4 is not destroyed like this, thereby ensuring its protective performance.

Example 3:

I also thought of a cable, but I didn’t draw a picture to show it. Generally speaking, the difference from the above two is that the outer insulating sheath 3 is filled with flame-retardant powder, so that the safety of the cable is better.

Obviously, the examiner teacher should know that the protection scope of the patent is definitely wider than what I wrote, and it cannot be understood literally, but should be determined according to the technical personnel’s understanding.

Claims (2)

1. A cable, including four conductors (1), each conductor (1) has an inner insulating sheath (2), the cable also includes a square outer insulating sheath (3) and an outer sheath (4 ), the four conductors (1) are located inside the outer insulating sheath (3), and the outer sheath (4) is located outside the outer insulating sheath (3). The special feature is that the outer sheath (4) The outer surface is circular, and the inner surface is a square shape matched with the outer insulating sleeve (3). There is a soft filling body (5) at the center of the outer insulating sleeve (3). The soft filling body (5) It has four inner concave surfaces (6), each inner concave surface (6) cooperates with one conductor (1) and confines the conductor (1) between the inner concave surface (6) and one of the top corners of the outer insulating sleeve (3) There is a hollow cavity (7) in the center of the soft filling body (5). 2. The cable according to claim 1, which is special in that: there are four dovetail grooves (8) on the outer surface of the outer sheath (4), and the dovetail grooves (8) are filled with fluorescent Hairspray (9).