CN106340850A - Cable intermediate joint with high waterproof performance, and installation method thereof - Google Patents

Abstract

The invention discloses a cable intermediate joint with high waterproof performance, for connecting two cables. Insulation layers at the tail ends of the two cables are conical-shaped and expose internal semiconducting layers, cable cores at the tail ends of the two cables are pressed by use of a pressing pipe, the pressing pipe is externally wound with a semiconducting self-adhesive tape, the semiconducting self-adhesive tape is overlapped from the internal semiconducting layer at the tail end of one cable to the internal semiconducting layer at the tail end of the other cable, the semiconducting self-adhesive tapes is wound with filling glue, and the filling glue fills flat cones of the cable insulation layers to enable the cones to be flush with an insulation cylindrical surface. The external layer of the filling glue is wound with an insulation self-adhesive tape, and the insulation self-adhesive tape is overlapped from the insulation layer at the tail end of one cable to the insulation layer at the tail end of the other cable. The invention further discloses an installation method of the joint. According to the invention, through such an insulation sealing structure, the cable intermediate joint is enabled to have high waterproof performance, prevents moisture and the like from penetration into the intermediate joint, prevents the intermediate joint from breakdown and ensures reliable power transmission and power transmission safety accordingly.

Description

Cable intermediate joint with high waterproof performance and installation method thereof

technical field

The invention relates to a cable intermediate joint and an installation method thereof.

Background technique

At present, the common cold-shrinkable intermediate joints on the market are mainly composed of four parts: stress cone, insulating layer, shielding tube and outer shielding layer. The intermediate joints of this structure are not only complex in structure, but also easy to get water and moisture in a humid and water-immersed environment, thus cause breakdown.

Contents of the invention

The object of the present invention is to provide a cable intermediate joint with high waterproof performance.

In order to achieve the purpose of the present invention, the present invention provides a cable intermediate joint with high waterproof performance, which is used to connect two cables. The core is crimped with a crimping tube, and a semiconductive self-adhesive tape is wrapped around the crimping tube, and the semiconductive self-adhesive tape overlaps from the inner semiconductive layer of one cable end to the inner semiconductive layer of the other cable end. The semi-conductive self-adhesive tape is wound with filling glue, and the filling glue fills the cone shape of the cable insulation layer to be flush with the insulating cylindrical surface. An insulating self-adhesive tape is wrapped around the outer layer of the filling glue, and the insulating self-adhesive tape overlaps from the insulating layer at one end of the cable to the insulating layer at the other end of the cable.

As a further improvement of the present invention, the insulating self-adhesive tape is shrunk with a cold-shrinkable intermediate joint main body, and both ends of the cold-shrinkable intermediate joint main body respectively extend to cover the two cables.

As a further improvement of the present invention, the two ends of the main body of the cold-shrink intermediate joint are sequentially wound with sealant and waterproof tape.

As a further improvement of the present invention, an insulating cold-shrinkable tube is shrunk on the waterproof tape, and the two ends of the insulating cold-shrinkable tube are respectively lapped on the main body of the intermediate joint and the cable.

The present invention also provides a method for installing a cable intermediate joint with high waterproof performance. The cable intermediate joint is used to connect two cables, including the following steps:

First, carry out routine treatment on the sheath and shielding layer of the cable, cut the insulating layers at the ends of the two cables into a cone shape according to a certain size, and expose the inner semiconducting layer of a certain size;

Then, the cable cores at the ends of the two cables are crimped with a crimping tube, and a semiconductive self-adhesive tape is wrapped around the outside of the crimping tube. the inner semiconducting layer at the end of the cable;

Secondly, wrap the filling glue on the semi-conductive self-adhesive tape, and the filling glue will wind the cone shape of the cable insulation layer to be flush with the insulating cylindrical surface;

Next, an insulating self-adhesive tape 10 is wound on the outer layer of the filler, and the insulating self-adhesive tape is overlapped from the insulating layer at one end of the cable to the insulating layer at the other end of the cable.

As a further improvement of the present invention, the main body of the cold-shrinkable intermediate joint is shrunk outside the insulating self-adhesive tape, and both ends of the main body of the cold-shrinkable intermediate joint respectively extend to cover the two cables.

As a further improvement of the present invention, the two ends of the main body of the cold-shrink intermediate joint are sequentially wound with sealant and waterproof tape.

As a further improvement of the present invention, an insulating cold-shrinkable tube is shrunk on the waterproof tape, and the two ends of the insulating cold-shrinkable tube are respectively lapped on the main body of the intermediate joint and the cable.

As mentioned above, the cable intermediate joint with high waterproof performance of the present invention has filling glue and insulating self-adhesive tape, and the filling glue is wound on the semi-conductive self-adhesive tape to fill the cone shape of the cable insulation layer to be flush with the insulating cylindrical surface, The insulating self-adhesive tape is lapped from the insulating layer of one cable end to the insulating layer of the other cable end. Through the above-mentioned insulating sealing structure, the cable intermediate joint has high waterproof performance, which can prevent moisture from entering the intermediate joint and prevent intermediate Joint breakdown, thus ensuring reliable and safe power transmission.

Description of drawings

Fig. 1 is the structural representation that the insulating layer of the cable end of the present invention is cut into a cone shape according to a certain size and exposes a certain size of the inner semiconducting layer;

Fig. 2 is the structure schematic diagram after winding semiconductive self-adhesive tape, filling glue and insulating self-adhesive tape sequentially after the cable cores of two cable ends of the present invention are crimped with crimping tube;

Fig. 3 is a structural schematic diagram of the main body of the cold-shrinkable intermediate joint;

Fig. 4 is a schematic diagram of shrinking the main body of the cold-shrinkable intermediate joint on the insulating self-adhesive tape at the end of the two cables shown in Fig. 2 and winding the sealant and waterproof tape, and shrinking the insulating cold-shrinkable tube on the waterproof tape.

detailed description

The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific examples, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention .

Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the cable intermediate connector with high waterproof performance of the present invention is used to connect two cables 10, and the insulating layer 11 at the end of the two cables 10 is in the shape of a cone and exposes the inner semiconducting layer 12. The cable cores 13 at the ends of the two cables 10 are crimped with a crimping tube 20, and the crimping tube 20 is wrapped with a semiconductive self-adhesive tape 30. 12 is bonded to the inner semiconducting layer 12 at the end of another cable 10. The semi-conductive self-adhesive tape 30 is wound with a filling glue 40, and the filling glue 40 fills up the cone shape of the cable insulation layer to be flush with the insulating cylindrical surface. An insulating self-adhesive tape 50 is wrapped around the outer layer of the filler 40 , and the insulating self-adhesive tape 50 overlaps the insulating layer at the end of one cable 10 to the insulating layer at the end of the other cable 10 .

As a further improvement of the present invention, the insulating self-adhesive tape 50 is shrunk with a cold-shrinkable intermediate joint main body 60 , and the two ends of the cold-shrinkable intermediate joint main body 60 respectively extend to cover the two cables 10 . The cold-shrink intermediate joint body 60 includes an insulating layer 61, an outer shielding layer 62 and a stress cone 63, wherein the outer shielding layer 62 is located outside the insulating layer 61, and the stress cones 63 are respectively located on the inner walls at both ends of the insulating layer.

As a further improvement of the present invention, the two ends of the cold-shrinkable intermediate joint body 60 are wound with a sealant 70 and a waterproof tape 80 in sequence.

As a further improvement of the present invention, an insulating cold-shrinkable tube 90 is shrunk on the waterproof adhesive tape 80 , and the two ends of the insulating cold-shrinkable tube 90 are respectively lapped on the intermediate joint main body 60 and the two cables 10 .

The present invention also provides a method for installing a cable intermediate joint with high waterproof performance. The cable intermediate joint is used to connect two cables, including the following steps:

First, the sheaths and shielding layers of the two cables 10 are routinely processed, and the insulating layers 11 at the ends of the two cables 10 are cut into a cone shape according to a certain size, and the inner semiconducting layer 12 of a certain size is exposed;

Then, the cable cores 13 at the ends of the two cables 10 are crimped with the crimping tube 20, and the semiconducting self-adhesive tape 30 is wrapped around the outside of the crimping tube 20. The conductive layer 12 is bonded to the inner semiconductive layer 12 at the end of the other cable 10;

Secondly, on the semi-conductive self-adhesive tape 30, the filling glue 40 is wound again, and the filling glue 40 wraps the cone shape of the cable insulation layer to be flush with the insulating cylindrical surface;

Next, an insulating self-adhesive tape 50 is wound on the outer layer of the filler 40 , and the insulating self-adhesive tape 50 overlaps from the insulating layer 11 at the end of one cable 10 to the insulating layer 11 at the end of the other cable 10 .

As a further improvement of the present invention, the insulating self-adhesive tape 50 shrinks the cold-shrinkable intermediate joint main body 60 , and the two ends of the cold-shrinkable intermediate joint main body 60 respectively extend to cover the two cables 10 .

As a further improvement of the present invention, the two ends of the cold-shrink intermediate joint body 60 are wound with a sealant 70 and a waterproof tape 80 in sequence.

As a further improvement of the present invention, an insulating cold-shrink tube 90 is shrunk on the waterproof adhesive tape 80 , and both ends of the insulating cold-shrink tube 90 are lapped on the cold-shrink intermediate joint body 60 and the cable 10 respectively.

In summary, the cable intermediate joint with high waterproof performance of the present invention has a filling glue 40 and an insulating self-adhesive tape 50, and the filling glue 40 is wound on the semi-conductive self-adhesive tape 30 to fill up and insulate the cone shape of the cable insulation layer. The cylindrical surface is flush, and the insulating self-adhesive tape 50 is lapped from the insulating layer 11 at the end of one cable 10 to the insulating layer 11 at the end of the other cable 10. Through the above-mentioned insulating and sealing structure, the cable intermediate joint has high waterproof performance, which can Prevent moisture, etc. from entering the interior of the intermediate joint, and prevent the breakdown of the intermediate joint, thereby ensuring reliable and safe power transmission.

The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, All are included in the scope of patent protection of the present invention in the same way.

Claims (9)

1. A cable intermediate joint with high waterproof performance, used to connect two cables, characterized in that: the insulating layers at the ends of the two cables are in the shape of a cone and expose the inner semi-conductive layer, and the cable cores at the ends of the two cables are used The crimping tube is crimped, and the semi-conductive self-adhesive tape is wrapped around the crimping tube, and the semi-conductive self-adhesive tape is lapped from the inner semi-conductive layer of one cable end to the inner semi-conductive layer of the other cable end; semi-conductive self-adhesive The tape is wound with filler glue, which fills the cone shape of the cable insulation layer and is flush with the insulating cylindrical surface; the outer layer of the filler glue is wrapped with an insulating self-adhesive tape, and the insulating self-adhesive tape is formed from the insulation layer at one end of the cable. Bonded to the insulation at the end of the other cable. 2. The cable intermediate joint with high waterproof performance according to claim 1, characterized in that, the insulating self-adhesive tape is shrunk to have a cold-shrinkable intermediate joint body, and the two ends of the cold-shrinkable intermediate joint body are respectively extended to cover on both cables. 3. The cable intermediate joint with high waterproof performance as claimed in claim 2, wherein the main body of the cold-shrinkable intermediate joint includes an insulating layer, an outer shielding layer and a stress cone fixed together, wherein the outer shielding layer is located on the insulating layer Outside the insulating layer, the stress cones are respectively located on the inner walls at both ends of the insulating layer. 4. The cable intermediate joint with high waterproof performance according to claim 1, characterized in that, both ends of the main body of the cold-shrinkable intermediate joint are wound with sealant and waterproof tape in sequence. 5. The cable intermediate joint with high waterproof performance as claimed in claim 1, characterized in that an insulating cold-shrinkable tube is shrunk on the waterproof tape, and the two ends of the insulating cold-shrinkable tube are respectively lapped on the main body of the intermediate joint and the cable. . 6. An installation method of a cable intermediate joint with high waterproof performance, the cable intermediate joint is used to connect two cables, and it is characterized in that it includes the following steps: First, carry out routine treatment on the sheath and shielding layer of the cable, cut the insulating layer at the end of the two cables into a cone shape according to a certain size, and expose the inner semiconducting layer of a certain size; Then, the cable cores at the ends of the two cables are crimped with a crimping tube, and a semiconductive self-adhesive tape is wrapped around the outside of the crimping tube. the inner semiconducting layer at the end of the cable; Secondly, wrap the filling glue on the semi-conductive self-adhesive tape, and the filling glue will wind the cone shape of the cable insulation layer to be flush with the insulating cylindrical surface; Next, an insulating self-adhesive tape 10 is wound on the outer layer of the filler, and the insulating self-adhesive tape is overlapped from the insulating layer at one end of the cable to the insulating layer at the other end of the cable. 7. The installation method of a cable intermediate joint with high waterproof performance as claimed in claim 6, wherein the main body of the cold-shrinkable intermediate joint is shrunk outside the insulating self-adhesive tape, and the two ends of the main body of the cold-shrinkable intermediate joint are respectively Extend the coverage to both cables. 8. The installation method of the cable intermediate joint with high waterproof performance according to claim 1, characterized in that, the two ends of the main body of the cold-shrinkable intermediate joint are sequentially wound with sealant and waterproof tape. 9. The installation method of the cable intermediate joint with high waterproof performance as claimed in claim 1, characterized in that, the insulating cold shrink tube is shrunk on the waterproof tape, and the two ends of the insulating cold shrink tube overlap the intermediate joint main body and the on the cable.