A cold-shrink cable head with protective function

Abstract

This utility model relates to the field of cold-shrink cable termination technology and discloses a cold-shrink cable termination with protective function. It includes a cable body, a cable core inside the cable body, a cold-shrink branch sleeve fitted on the right side of the cable body, a connecting end fitted on the outside of the right side of the cable core, a lug fixedly installed on the right side of the connecting end, a threaded clamping end on the left side of the connecting end, a blocking part fixedly installed on the left side of the threaded clamping end, and a clamping nut installed on the external thread of the threaded clamping end. The cold-shrink sleeve is fitted on the outside of the cable core. This cold-shrink cable termination with protective function, by fitting the connecting end onto the outside of the cable core and rotating the clamping nut to press the threaded clamping end against the outside of the cable core, securely connects the lug to the cable core. During use, no external pressure is required, thus preventing deformation of the cable core and making the connection process more convenient.

Description

Technical Field

[0001] This utility model relates to the field of cold shrink cable head technology, specifically a cold shrink cable head with protective function. Background Technology

[0002] Cold shrink cable terminations are components of various cable accessories, made by injection molding and vulcanization of elastomer materials in a factory, followed by diameter expansion and lining with plastic spiral supports. During field installation, these pre-expanded parts are fitted onto the treated cable end or joint, the internal supporting plastic spiral is removed, and the termination is pressed tightly against the cable insulation. Because it shrinks at room temperature using elastic recoil force, unlike heat shrink cable accessories which require heating, it is commonly known as a cold shrink cable accessory.

[0003] When cold-shrink cables are installed, the ends are connected to the cable core by inserting the lugs onto the core and then pressing them together to deform and tighten them. In actual use, the pressing connection method easily causes deformation of the cable core, which not only increases its resistance but also reduces its heat dissipation capacity. Therefore, it is necessary to improve the cold-shrink cable head with protective functions to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a cold-shrink cable head with protective function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cold-shrink cable head with protective function, comprising a cable body, a cable core disposed inside the cable body, a cold-shrink branch sleeve fitted on the right side of the cable body, a connecting end fitted on the outside of the right side of the cable core, a wiring lug fixedly installed on the right side of the connecting end, a threaded clamping end disposed on the left side of the connecting end, a blocking part fixedly installed on the left side of the threaded clamping end, a clamping nut installed on the external thread of the threaded clamping end, and a cold-shrink sleeve fitted on the outside of the cable core.

[0006] Preferably, a branch tube is provided on the right side of the cold shrink branch sleeve, and the number of branch tubes corresponds to the number of cable cores, which facilitates the covering and protection of the separation point between the cable cores and the cable body.

[0007] Preferably, both the cold shrink branch sleeve and the cold shrink sleeve are provided with plastic spiral support strips inside, which facilitates the cold shrink wrapping of the cold shrink branch sleeve and the cold shrink sleeve.

[0008] Preferably, both the cold shrink branch sleeve and the cold shrink sleeve are made of ethylene propylene rubber, which facilitates insulation protection.

[0009] Preferably, multiple threaded clamping ends are provided and arranged in a circumferential array at the end of the connection end away from the terminal lug, so that the threaded clamping ends can be clamped to the outside of the cable core.

[0010] Preferably, the threaded clamping end, the blocking part, the connecting end, and the wiring lug are all made of copper material, which facilitates improved conductivity.

[0011] Preferably, the clamping nut is made of polytetrafluoroethylene material, and the outside of the clamping nut is provided with an anti-slip groove to facilitate rotation of the clamping nut and clamping of the threaded end.

[0012] Compared with the prior art, this utility model provides a cold-shrink cable head with protective function, which has the following beneficial effects:

[0013] This protective cold-shrink cable head secures the connection lug to the cable core by fitting the connector end over the cable core and tightening the threaded end against the cable core by rotating the clamping nut. No external pressure is required during use, thus preventing deformation of the cable core and making the connection process more convenient.

[0014] This protective cold-shrink cable head, through the setting of cold-shrink branch sleeve and cold-shrink sleeve structure, protects the boundary of the cable core and the outside of the cable core. Furthermore, the compression nut is wrapped around the outside of the cold-shrink sleeve to protect the connection between the cable core and the connector. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the present invention;

[0018] Figure 3 This is an exploded view of the connecting end and the connected mechanism of this utility model.

[0019] Figure 4 This is a front sectional view of the present invention.

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Cable body; 2. Cable core; 3. Cold shrink branch sleeve; 4. Connecting end; 5. Wiring lug; 6. Threaded clamping end; 7. Blocking part; 8. Clamping nut; 9. Cold shrink sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a cold-shrink cable head with protective function, including a cable body, a cable core 2 inside the cable body, a cold-shrink branch sleeve 3 on the right side of the cable body, a connecting end 4 on the outside of the right side of the cable core 2, a terminal lug 5 fixedly installed on the right side of the connecting end 4, a threaded clamping end 6 on the left side of the connecting end 4, a blocking part 7 fixedly installed on the left side of the threaded clamping end 6, a clamping nut 8 threaded on the outside of the threaded clamping end 6, and a cold-shrink sleeve 9 on the outside of the cable core 2.

[0025] Furthermore, a branch pipe is provided on the right side of the cold shrink branch sleeve 3, and the number of branch pipes corresponds to the number of cable cores 2, which facilitates the covering and protection of the separation point of the cable cores 2 and the cable body.

[0026] Furthermore, both the cold shrink branch sleeve 3 and the cold shrink sleeve 9 are provided with plastic spiral support strips inside, which facilitates the cold shrink wrapping of the cold shrink branch sleeve 3 and the cold shrink sleeve 9.

[0027] Furthermore, both the cold shrink branch sleeve 3 and the cold shrink sleeve 9 are made of ethylene propylene rubber, which facilitates insulation protection.

[0028] Furthermore, multiple threaded clamping ends 6 are provided and arranged in a circumferential array at the end of the connection end 4 away from the terminal lug 5, so that the threaded clamping ends 6 can be clamped to the outside of the cable core 2.

[0029] Furthermore, the threaded clamping end 6, the blocking part 7, the connecting end 4, and the wiring lug 5 are all made of copper to improve conductivity.

[0030] Furthermore, the clamping nut 8 is made of polytetrafluoroethylene material, and the outside of the clamping nut 8 is provided with anti-slip grooves to facilitate the rotation of the clamping nut 8 so that the threaded clamping end 6 is clamped.

[0031] In actual operation, when using this device, first remove the outer sheath of the cable body 1, then remove the inner armor layer, peel off the shielding layer, and finally smooth the surface of the insulation layer with sandpaper. Then, pass the cable core 2 through the branch tube of the cold shrink branch sleeve 3 in sequence, and fit the left side of the cold shrink branch sleeve 3 onto the outside of the cable body. Tear off the inner plastic spiral support strip so that the left side of the cold shrink branch tube covers the outside of the cable body 1. Then tear off the inner plastic spiral support strip of the branch tube so that the branch tube covers the outside of the cable core 2. Then, the cold shrink tubing 9 is inserted into the cable core 2. The terminal of the cable core 2 is then inserted into the threaded clamping end 6 and into the inside of the connecting end 4. The clamping nut 8 is then rotated to move it to the left, pressing the threaded clamping end 6 against the outside of the cable core 2. The position of the cold shrink tubing 9 is then adjusted so that the left side of the cold shrink tubing 9 overlaps the branch pipe of the cold shrink branch tubing 3, and the right side of the cold shrink tubing 9 is fitted over the threaded clamping end 6, the clamping nut 8, and the outside of the connecting end 4. Finally, the internal plastic spiral support strip is torn out to cover it.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A cold-shrink cable head with protective function, comprising a cable body, characterized in that: The cable body is provided with a cable core (2) inside. A cold shrink branch sleeve (3) is sleeved on the right side of the cable body. A connection end (4) is sleeved on the outside of the right side of the cable core (2). A terminal lug (5) is fixedly installed on the right side of the connection end (4). A threaded clamping end (6) is provided on the left side of the connection end (4). A blocking part (7) is fixedly installed on the left side of the threaded clamping end (6). A clamping nut (8) is installed on the external thread of the threaded clamping end (6). A cold shrink sleeve (9) is sleeved on the outside of the cable core (2).

2. A cold-shrink cable head with protective function according to claim 1, characterized in that: The cold shrink branch sleeve (3) has a branch pipe on its right side, and the number of branch pipes corresponds to the number of cable cores (2).

3. A cold-shrink cable head with protective function according to claim 1, characterized in that: Both the cold shrink branch sleeve (3) and the cold shrink sleeve (9) are provided with plastic spiral support strips inside.

4. A cold-shrink cable head with protective function according to claim 1, characterized in that: Both the cold shrink branch sleeve (3) and the cold shrink sleeve (9) are made of ethylene propylene rubber.

5. A cold-shrink cable head with protective function according to claim 1, characterized in that: The threaded clamping end (6) is provided in multiple ways and is arranged in a circumferential array at the end of the connection end (4) away from the wiring lug (5).

6. A cold-shrink cable head with protective function according to claim 1, characterized in that: The threaded clamping end (6), the blocking part (7), the connecting end (4), and the wiring lug (5) are all made of copper.

7. A cold-shrink cable head with protective function according to claim 1, characterized in that: The clamping nut (8) is made of polytetrafluoroethylene material, and the outside of the clamping nut (8) is provided with anti-slip grooves.

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