Joint assembly convenient for high-voltage cable joint

Abstract

The utility model relates to the technical field of cable joints, in particular to a joint assembly convenient for high-voltage cable joint, which comprises joint sub-pieces and a heat shrink tube, and the joint sub-pieces are symmetrically arranged on the left side and the right side of the heat shrink tube in a central mode. Each joint sub-part comprises a joint pipe fitting, a folded elastic piece I, a semi-arc connecting plate, a folded elastic piece II, a folded elastic piece III, a dovetail groove, a dovetail strip block, a convex strip and a notch; and the semi-arc connecting plate is fixedly mounted at the inner side end of the joint pipe fitting. When the machine head assembly is used, the heat shrink tube is used for wrapping insulation, and the joint pipe fittings on the two sides are pushed for butt joint, so that the joint sub-pieces which are centrosymmetric on the left side and the right side are directionally clamped through the dovetail grooves and the dovetail strip blocks, the machine head assembly is ensured to be spliced completely and not easy to bend, and the situation that a joint cable falls off due to the bending situation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable joints, and particularly relates to a joint assembly for facilitating the joint of high-voltage cables. Background Art

[0002] A cable joint is also called a cable head. After the cable is laid, in order to make it a continuous line, each section of the wire must be connected into a whole, and these connection points are called cable joints. The cable joint in the middle part of the cable line is called an intermediate joint, and the cable joints at both ends of the line are called terminal heads.

[0003] During the cable jointing process, two semi-circular joint assemblies are usually used for splicing. Although it forms corresponding protection capabilities for the jointed cable, the anti-bending property and the quick-installation and quick-disassembly capabilities after the cable is jointed are poor. The main reason is that after the joint sleeve formed by wrapping the semi-circular joint assembly is bent at a certain angle, the deformation of the material will directly affect the jointed cable. At the same time, during the combination process, the help of a third party (such as the tightening of bolts and nuts) is required to ensure the completion of the splicing of the two semi-circular joint assemblies. Therefore, those skilled in the art provide a joint assembly for facilitating the joint of high-voltage cables to solve the problems raised in the above background art. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a joint assembly for facilitating the joint of high-voltage cables, including joint sub-components and a heat-shrinkable tube. The heat-shrinkable tube is symmetrically arranged at the centers on the left and right sides with joint sub-components. The joint sub-components include joint pipe fittings, a first folding elastic member, a semi-circular connecting plate, a second folding elastic member, a third folding elastic member, a dovetail groove, a dovetail strip block, a convex strip and a notch. A semi-circular connecting plate is fixedly installed at the inner side end of the joint pipe fitting. A dovetail strip block is fixedly installed on one side plate end face of the semi-circular connecting plate, and a dovetail groove is opened on the other side plate end face of the semi-circular connecting plate, and the dovetail groove corresponds to the dovetail strip block, so that the left and right symmetrically arranged joint sub-components are directionally clamped through the dovetail groove and the dovetail strip block, ensuring the complete splicing of the head assembly and being not easily bent, thereby reducing the shedding situation at the jointed cable caused by bending. A convex strip is fixedly installed in the middle of the outer side end face of the semi-circular connecting plate. The convex strip is made of insulating rubber and has good elastic deformation ability. A notch corresponding to the outer contour of the convex strip is opened at the inner port of the inner side of the joint pipe fitting, so that the left and right symmetrically arranged joint sub-components form a clamping through the notch and the convex strip, ensuring that the two joint sub-components are not easily loosened after being spliced, and further achieving the purpose of quick disassembly, providing corresponding conditions for subsequent maintenance processing.

[0005] Preferably: The heat-shrinkable tube is arranged in the middle of the joint sub-component and is used for insulating wrapping after the cable is jointed.

[0006] Preferably, a number of first folded elastic members are fixedly installed in a ring shape at the inner port on the outer side of the joint pipe fitting.

[0007] Preferably, a number of second folded elastic members are fixedly installed in a semi-circular ring shape at the inner port on the inner side of the joint pipe fitting.

[0008] Preferably, a number of third folded elastic members are fixedly installed in a ring shape at the inner end face on the inner side of the semi-circular arc connecting plate.

[0009] Preferably, the third folded elastic member, the second folded elastic member and the first folded elastic member are all bent and made of insulating plastic. While ensuring the electrical insulation at the cable joint position, the cable is suspended, reducing the direct damage to the cable joint caused by external impact directly through the joint pipe fitting.

[0010] The technical effects and advantages of the present utility model:

[0011] 1. When the present utility model is in use, by passing the joint pipe fittings on the left and right sides through the cable ports to be joined respectively, at this time, the third folded elastic member, the second folded elastic member and the first folded elastic member undergo elastic deformation according to the diameter of the cable. While insulating the cable, the cable is also suspended in the air, reducing the direct damage to the cable joint caused by external impact directly through the joint pipe fitting.

[0012] 2. When the present utility model is in use, it is wrapped with a heat shrinkable tube for insulation, and the joint pipe fittings on both sides are pushed to be butted, so that the symmetric joint sub-components on the left and right are directionally clamped through the dovetail groove and the dovetail bar, ensuring that the head assembly is spliced completely and is not easily bent, thereby reducing the detachment situation at the joined cable caused by bending.

[0013] 3. When the present utility model is in use, a clamping is formed between the notch and the convex strip, ensuring that the two joint sub-components are not easily loosened after being spliced, and further achieving the purpose of quick disassembly, providing corresponding conditions for subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram provided by the present application;

[0015] Figure 2 is a structural schematic diagram of the heat shrinkable tube provided by the present application;

[0016] Figure 3 is a structural schematic diagram of the joint sub-component provided by the present application;

[0017] In the figure: 1. Joint sub-component; 2. Heat shrinkable tube;

[0018] 11. Joint pipe fitting; 12. First folded elastic member; 13. Semi-circular arc connecting plate; 14. Second folded elastic member; 15. Third folded elastic member; 16. Dovetail groove; 17. Dovetail bar; 18. Convex strip; 19. Notch. Detailed implementation manners

[0019] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0020] Please refer to Figures 1 to 3 , in this embodiment, a joint assembly convenient for high-voltage cable joining is provided, including a joint sub-component 1 and a heat-shrinkable tube 2. The joint sub-components 1 are symmetrically arranged at the centers of the left and right sides of the heat-shrinkable tube 2. The heat-shrinkable tube 2 is arranged in the middle of the joint sub-component 1 and is used for insulating wrapping after cable joining;

[0021] The joint sub-component 1 includes a joint pipe fitting 11, a folded elastic member 12, a semi-circular arc connecting plate 13, a folded elastic member 14, a folded elastic member 15, a dovetail groove 16, a dovetail strip 17, a convex strip 18 and a notch 19. A plurality of folded elastic members 12 are fixedly installed in a ring shape at the inner port on the outer side of the joint pipe fitting 11. A plurality of folded elastic members 14 are fixedly installed in a semi-circular ring shape at the inner port on the inner side of the joint pipe fitting 11. A semi-circular arc connecting plate 13 is fixedly installed at the inner side end of the joint pipe fitting 11. A plurality of folded elastic members 15 are fixedly installed in a ring shape on the inner end face of the inner side of the semi-circular arc connecting plate 13. The folded elastic members 15, the folded elastic members 14 and the folded elastic members 12 are all made by bending insulating plastic. While ensuring the conductive insulation at the cable joining position, the cable is suspended, reducing the direct damage to the cable joining caused by external impact directly through the joint pipe fitting 11. A dovetail strip 17 is fixedly installed on one side plate end face of the semi-circular arc connecting plate 13, and a dovetail groove 16 is formed on the other side plate end face of the semi-circular arc connecting plate 13. The dovetail groove 16 corresponds to the dovetail strip 17, so that the joint sub-components 1 symmetrically arranged at the centers of the left and right sides are directionally clamped through the dovetail groove 16 and the dovetail strip 17, ensuring the complete splicing of the head assembly and not being easily bent, thereby reducing the detachment of the joined cable caused by bending. A convex strip 18 is fixedly installed in the middle of the outer end face of the semi-circular arc connecting plate 13. The convex strip 18 is made of insulating rubber and has good elastic deformation ability. A notch 19 corresponding to the outer contour of the convex strip 18 is formed at the inner port on the inner side of the joint pipe fitting 11, so that a clamping is formed between the notch 19 and the convex strip 18 for the joint sub-components 1 symmetrically arranged at the centers of the left and right sides, ensuring that the two joint sub-components 1 are not easily loosened after being spliced, and thus achieving the purpose of quick disassembly, providing corresponding conditions for subsequent maintenance processing.

[0022] The working principle of the present utility model is as follows:

[0023] When the present utility model is in use, the connecting pipe fittings 11 on the left and right sides are respectively passed through the cable ports to be joined. At this time, the folding elastic member three 15, the folding elastic member two 14 and the folding elastic member one 12 undergo elastic deformation according to the diameter of the cable. While insulating the cable, the cable is also suspended in the air, reducing the direct damage to the cable joint caused by external impact directly through the connecting pipe fitting 11. After the cable is joined, it is wrapped with a heat shrinkable tube 2 for insulation. The connecting pipe fittings 11 on both sides are pushed to be butted, so that the symmetrically arranged joint sub-parts 1 on the left and right are directionally clamped through the dovetail grooves 16 and the dovetail bars 17, ensuring that the nose assembly is completely spliced and not easily bent, thereby reducing the detachment of the joined cable caused by bending. Then, a clamping is formed between the notch 19 and the convex strip 18 to ensure that the two joint sub-parts 1 are not easily loosened after being spliced, and thus the purpose of quick disassembly is achieved, providing corresponding conditions for subsequent maintenance.

[0024] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. The structures, devices and operation methods not specifically described and explained in the present utility model shall be implemented by conventional means in the art without special instructions and limitations.

Claims

1. A joint assembly for facilitating the joining of high-voltage cables, comprising a joint sub-component (1) and a heat shrinkable tube (2), characterized in that, On the left and right sides of the heat-shrinkable tube (2), connector sub-pieces (1) are symmetrically arranged. The connector sub-piece (1) includes a connector pipe fitting (11), a first folded elastic piece (12), a semi-circular connecting plate (13), a second folded elastic piece (14), a third folded elastic piece (15), a dovetail groove (16), a dovetail strip (17), a convex strip (18), and a notch (19). On the inner side end of the connector pipe fitting (11), a semi-circular connecting plate (13) is fixedly installed. On one side plate end face of the semi-circular connecting plate (13), a dovetail strip (17) is fixedly installed. On the other side plate end face of the semi-circular connecting plate (13), a dovetail groove (16) is provided, and the dovetail groove (16) corresponds to the dovetail strip (17). In the middle of the outer end face of the semi-circular connecting plate (13), a convex strip (18) is fixedly installed. The convex strip (18) is made of insulating rubber and has good elastic deformation ability. At the inner port of the inner side of the connector pipe fitting (11), a notch (19) corresponding to the outer contour of the convex strip (18) is provided.

2. The joint assembly for facilitating the joining of high-voltage cables according to claim 1, characterized in that, The heat-shrinkable tube (2) is arranged in the middle of the connector sub-piece (1), and the heat-shrinkable tube (2) is used for insulating wrapping after cable connection.

3. The joint assembly for facilitating the connection of high-voltage cables according to claim 1, characterized in that, A number of first folded elastic pieces (12) are fixedly installed in a ring shape at the inner port of the outer side of the connector pipe fitting (11).

4. The joint assembly for facilitating the joining of high-voltage cables according to claim 3, characterized in that, A number of second folded elastic pieces (14) are fixedly installed in a semi-circular ring shape at the inner port of the inner side of the connector pipe fitting (11).

5. The joint assembly for facilitating the joining of high-voltage cables according to claim 4, characterized in that, A number of third folded elastic pieces (15) are fixedly installed in a ring shape at the inner end face of the inner side of the semi-circular connecting plate (13).

6. The joint assembly for facilitating the joining of high-voltage cables according to claim 5, wherein, The third folded elastic piece (15), the second folded elastic piece (14), and the first folded elastic piece (12) are all bent and made of insulating plastic.

Images