Thermal shrinkage type cable terminal structure

Abstract

The utility model relates to the technical field of thermal shrinkage type cables, in particular to a thermal shrinkage type cable terminal structure, which comprises a first cable and a thermal shrinkage layer, one end of the first cable is provided with a first connecting line, and one end of the first connecting line far away from the first cable is fixedly connected with a first connecting block. Through arrangement of components such as a thermal shrinkage layer, a first rubber layer, a fixing piece and a second rubber layer, first-layer insulation protection is carried out on a first connecting line and a second connecting line through the thermal shrinkage layer, and multi-layer protection is carried out on the first connecting line and the second connecting line through the first rubber layer and the second rubber layer; the first connecting line and the second connecting line can be wrapped by the arranged fixing piece, the fixing piece part of the thermal shrinkage layer is beaten, so that the fixing piece and the second rubber layer are tightly attached to the first connecting line and the second connecting line, the first connecting line and the second connecting line can be further subjected to wear resistance, and good supporting performance can be provided for the first connecting line and the second connecting line.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrinkable cables, in particular to a heat shrinkable cable terminal structure. Background Art

[0002] The heat shrinkable cable terminal head is a cable accessory made of radiation cross-linked heat shrinkable material. It has the characteristics of small size, light weight, strong practicality and easy installation. It is suitable for various cables such as cross-linked, plastic and impregnated paper insulation. At present, there are cable accessories such as heat shrinkable indoor and outdoor terminal heads and intermediate joints suitable for various cables of 35KV and below. Heat shrinkable cable accessories are divided into two types: paper insulated cable type and cross-linked cable type. The former is suitable for impregnated paper cables, and the latter is suitable for cross-linked and plastic cables. The main difference in structure between the two types of cable accessories is that the paper insulation type has an oil separator while the cross-linked type does not. The heat shrinkable cable terminal is commonly known as the heat shrinkable cable head. Compared with traditional cable accessories, it has the characteristics of small size, light weight, safety and reliability, and easy installation.

[0003] The existing heat shrinkable cable terminal has only one heat shrink layer for wire protection, and the protection effect is poor. It may break when squeezed; the circuit connection firmness of the existing heat shrinkable cable terminal is poor, and it may become loose over time, resulting in poor contact; the existing heat shrinkable cable terminal is more troublesome to cut, and needs to be cut with the help of scissors and other tools, which is more troublesome. Therefore, a heat shrinkable cable terminal structure is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a heat shrinkable cable terminal structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heat shrinkable cable terminal structure comprises a first cable and a heat shrinkable layer, wherein a first connecting wire is provided at one end of the first cable, a first connecting block is fixedly connected to an end of the first connecting wire away from the first cable, a first limiting hole is provided on one side of the first connecting block, a first rubber layer is fixedly connected to the inner side of the heat shrinkable layer, a fixing piece is fixedly connected to the inner center position of the first rubber layer, a second rubber layer is fixedly connected to the inside of the fixing piece, a second connecting block is provided on one side of the first connecting block, a second connecting wire is fixedly connected to an end of the second connecting block away from the first connecting block, and a second cable is provided at an end of the second connecting wire away from the second connecting block.

[0007] Preferably, one end of the heat shrinkable layer is fixedly connected to an easy-tear strip, and the number of the heat shrinkable layers is two, and they are symmetrically arranged at both ends of the easy-tear strip.

[0008] Preferably, the fixing member and the second rubber layer are internally fixedly connected with a first connecting line, a first connecting block and a first limiting hole and a second connecting line, a second connecting block and a second limiting hole.

[0009] Preferably, the first connecting wire, the first connecting block and the first limiting hole form a group, there are two groups in total, and they are symmetrically arranged on the surface of the first cable.

[0010] Preferably, the second connecting wire, the second connecting block and the second limiting hole form a group, there are two groups in total, and are symmetrically arranged on the surface of the second cable.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, the heat shrinkable layer, the first rubber layer, the fixing part and the second rubber layer are provided, the heat shrinkable layer is provided to provide the first layer of insulation protection for the first connecting wire and the second connecting wire, the first rubber layer and the second rubber layer are provided to provide the first connecting wire and the second connecting wire with multiple layers of protection, the fixing part can wrap the first connecting wire and the second connecting wire, the fixing part part of the heat shrinkable layer is hammered, so that the fixing part and the second rubber layer are closely attached to the first connecting wire and the second connecting wire, which can further improve the wear resistance and provide good support for the first connecting wire and the second connecting wire, thereby solving the problem that the existing heat shrinkable cable terminal has only one layer of heat shrinkable layer for wire protection, the protection effect is poor, and the first connecting wire and the second connecting wire may be cracked due to extrusion;

[0013] 2. In the utility model, by setting the first connection block, the first limiting hole, the second connection block, the second limiting hole and the fixing member, the first connection block and the second connection block are firstly attached together, and then the first limiting hole and the second limiting hole are overlapped, and then a section of iron wire is passed through the first limiting hole and the second limiting hole, and then the first connection block and the second connection block are folded and fixedly connected together together with the iron wire, so that the first connection line and the second connection line form a stable and strong structure, and then the fixing member is sleeved on the outside of the first connection block and the second connection block, and the fixing member is smashed and deformed by a tool to fix the first connection block and the second connection block, and the multi-layer fixing structure prevents loosening, thereby solving the problem that the circuit connection firmness of the existing heat shrinkable cable terminal is poor, and the phenomenon of loosening may occur over a long period of time, resulting in poor contact;

[0014] 3. In the utility model, by setting the heat shrinkable layer, the easy-tear strip, the first cable and the second cable and other components, the excess part of the heat shrinkable layer is decomposed according to the required length of the first cable and the second cable. Under the action of the easy-tear strip, the two sections of the heat shrinkable layer can be easily torn apart, thereby solving the problem that the existing heat shrinkable cable terminal is more troublesome to cut and needs to be cut with the help of scissors and other tools, which is more troublesome. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the second connecting line connected to the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the heat shrinkable layer structure of the utility model;

[0019] Figure 5 It is a side structural schematic diagram of the utility model.

[0020] In the figure: 1. first cable; 2. first connecting line; 3. first connecting block; 4. heat shrink layer; 5. first rubber layer; 6. fixing piece; 7. second rubber layer; 8. tear strip; 9. first limiting hole; 10. second cable; 11. second connecting line; 12. second connecting block; 13. second limiting hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the utility model, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0023] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the practical protection scope of this new model.

[0024] See also Figure 1-5 , the utility model provides a technical solution:

[0025] A heat shrinkable cable terminal structure includes a first cable 1 and a heat shrinkable layer 4, a first connecting line 2 is provided at one end of the first cable 1, a first connecting block 3 is fixedly connected to the end of the first connecting line 2 away from the first cable 1, a first limiting hole 9 is provided on one side of the first connecting block 3, a first rubber layer 5 is fixedly connected to the inner side of the heat shrinkable layer 4, a fixing piece 6 is fixedly connected to the inner center position of the first rubber layer 5, a second rubber layer 7 is fixedly connected to the inside of the fixing piece 6, a second connecting block 12 is provided on one side of the first connecting block 3, a second connecting line 11 is fixedly connected to the end of the second connecting block 12 away from the first connecting block 3, and a second cable 10 is provided at the end of the second connecting line 11 away from the second connecting block 12.

[0026] One end of the heat shrinkable layer 4 is fixedly connected to a tear strip 8, and the number of heat shrinkable layers 4 is two, and they are symmetrically arranged at both ends of the tear strip 8. The interior of the fixing part 6 and the second rubber layer 7 is fixedly connected with the first connecting line 2, the first connecting block 3 and the first limiting hole 9 and the second connecting line 11, the second connecting block 12 and the second limiting hole 13. The first connecting line 2, the first connecting block 3 and the first limiting hole 9 are a group, there are two groups in total, and they are symmetrically arranged on the surface of the first cable 1. The second connecting line 11, the second connecting block 12 and the second limiting hole 13 are a group, there are two groups in total, and they are symmetrically arranged on the surface of the second cable 10.

[0027] Workflow: When it is necessary to use a heat-shrinkable cable terminal structure, first pass the first cable 1 and the second cable 10 into the first rubber layer 5, then move the heat-shrinkable layer 4 onto the first cable 1, then fit the first connecting line 2 and the second connecting line 11 together with the first connecting block 3 and the second connecting block 12, then make the first limiting hole 9 and the second limiting hole 3 overlap, then pass a section of wire through the first limiting hole 9 and the second limiting hole 13, then use the wire to screw the first connecting block and the second fixing block together, then fold the first connecting block 3 and the second connecting block 12, so that the first connecting line 2 and the second connecting line 11 form a stable and strong structure, then move the heat-shrinkable layer 4 to put the fixing piece 6 on the outside of the first connecting block 3 and the second connecting block 12, and use a tool to smash and deform the fixing piece 6 to fix the first connecting block 3 and the second connecting block 12. The multi-layer fixing structure prevents loosening, and the first connecting wire 2 and the second connecting wire 11 are provided with a first layer of insulation protection by the heat shrink layer 4, and the first connecting wire 2 and the second connecting wire 11 are provided with a multi-layer protection by the first rubber layer 5 and the second rubber layer 7. The first connecting wire 2 and the second connecting wire 11 can be wrapped by the fixed part 6, and the fixed part 6 part aligned with the heat shrink layer 4 is hammered to make the fixed part 6 and the second rubber layer 7 fit tightly with the first connecting block 3 and the second connecting block 12, which can further improve the wear resistance and provide good support for the first connecting wire 2 and the second connecting wire 11. Finally, the heat shrink layer 4 is baked by a fire source to shrink the heat shrink layer 4 to shrink and wrap the surfaces of the first cable 1, the second cable 10, the first connecting wire 2 and the second connecting wire 11, thereby achieving the protection effect of the line.

[0028] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat shrinkable cable terminal structure, comprising a first cable (1) and a heat shrinkable layer (4), characterized in that: A first connecting wire (2) is provided at one end of the first cable (1); an end of the first connecting wire (2) away from the first cable (1) is fixedly connected to a first connecting block (3); a first limiting hole (9) is provided on one side of the first connecting block (3); a first rubber layer (5) is fixedly connected to the inner side of the heat shrinkable layer (4); a fixing piece (6) is fixedly connected to the inner center of the first rubber layer (5); a second rubber layer (7) is fixedly connected to the inner side of the fixing piece (6); a second connecting block (12) is provided at one side of the first connecting block (3); an end of the second connecting block (12) away from the first connecting block (3) is fixedly connected to a second connecting wire (11); and an end of the second connecting wire (11) away from the second connecting block (12) is provided with a second cable (10).

2. A heat shrinkable cable terminal structure according to claim 1, characterized in that: One end of the heat shrinkable layer (4) is fixedly connected to an easy-tear strip (8), and the number of the heat shrinkable layers (4) is two, which are symmetrically arranged at both ends of the easy-tear strip (8).

3. A heat shrinkable cable terminal structure according to claim 1, characterized in that: The fixing member (6) and the second rubber layer (7) are internally fixedly connected with a first connecting line (2), a first connecting block (3) and a first limiting hole (9) and a second connecting line (11), a second connecting block (12) and a second limiting hole (13).

4. A heat shrinkable cable terminal structure according to claim 1, characterized in that: The first connecting wire (2), the first connecting block (3) and the first limiting hole (9) form a group, with two groups in total, and are symmetrically arranged on the surface of the first cable (1).

5. A heat shrinkable cable terminal structure according to claim 1, characterized in that: The second connecting wire (11), the second connecting block (12) and the second limiting hole (13) form a group, with two groups in total, and are symmetrically arranged on the surface of the second cable (10).

Images