CN218976323U

CN218976323U - High-safety hot-melt type intermediate joint with the pressure of 35kv and below

Info

Publication number: CN218976323U
Application number: CN202320090721.0U
Authority: CN
Inventors: 陈建林; 杨忠儿; 汪烈
Original assignee: Zhejiang Zhuyang Technology Co ltd
Current assignee: Zhejiang Zhuyang Technology Co ltd
Priority date: 2023-01-31
Filing date: 2023-01-31
Publication date: 2023-05-05
Anticipated expiration: 2033-01-31

Abstract

The utility model provides a hot melt type intermediate joint with high safety of 35kv and below, and relates to the technical field of cable intermediate joints. The silane crosslinked insulating sleeve is formed on the outer side of the combined copper pipe, the silane coupling agent is introduced into the polyethylene sleeve, the strength and ageing resistance of the polyethylene sleeve are enhanced, the galvanized steel strip is arranged on the outer side of the silane crosslinked insulating sleeve, the compression resistance and the wear resistance of the integral structure are enhanced, the water-blocking cable paste is filled between the silane crosslinked insulating sleeve and the galvanized steel strip, the water-blocking cable paste has good waterproof, dampproof and bonding effects, the outer side of the galvanized steel strip is provided with the outer jacket, and the outer jacket is made of polyvinyl chloride material which has good waterproof, anti-freezing, sun-proof and ageing effects.

Description

High-safety hot-melt type intermediate joint with the pressure of 35kv and below

Technical Field

The utility model relates to the technical field of cable intermediate connectors, in particular to a hot melt type intermediate connector with high safety of 35kv and below.

Background

The intermediate joint of 35kv and below refers to a cable intermediate joint, namely a cable joint of the intermediate part of a cable line of 35kv and below, and has the main functions of ensuring the smoothness of the line and ensuring the insulation grade of the cable joint so as to ensure the safe and reliable operation of the cable joint.

The prior art has the following defects: the outside of the existing hot melt type intermediate joint with the volume of 35kv and below is generally wrapped and protected by a polyethylene sheath, when a certain severe environment is met, the aim of water resistance, fire resistance, wear resistance and the like cannot be fully achieved by a single polyethylene sheath, so that the normal use of a copper pipe wrapped in the polyethylene sheath is affected.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a hot-melt type intermediate joint with high safety of 35kv and below, which solves the problems in the prior art.

In order to solve the technical problems, the utility model provides a high-safety 35kv and below hot-melt type intermediate connector, which comprises two cables, wherein cable cores are symmetrically arranged in the cables, an intermediate connector mechanism is arranged between the two cables, a sealing sleeve is arranged between the intermediate connector mechanism and the cables, the sealing sleeve is arranged corresponding to the two cables, and the intermediate connector mechanism is used for realizing connection between the two cables.

Preferably, the middle joint mechanism comprises a combined copper pipe, a silane crosslinked insulating sleeve is arranged on the outer side of the combined copper pipe, a galvanized steel strip is arranged on the outer side of the silane crosslinked insulating sleeve, and water-blocking cable paste is filled between the silane crosslinked insulating sleeve and the galvanized steel strip.

Preferably, the galvanized steel strip outside is provided with the oversheath, the oversheath is polyvinyl chloride material, insert and establish the hole on the oversheath, insert and establish the hole and be provided with six to six insert and establish the hole and around the circumferencial direction array distribution of oversheath, insert and establish the hole interpolation and be equipped with the steel wire.

Preferably, the steel wire is made of phosphating tensile materials, penetrating holes are formed in the outer sheath in a penetrating mode, a group of penetrating holes are uniformly formed in the penetrating holes, and the penetrating holes are filled with a rodenticide and an insect-resist agent.

Preferably, a PE flame-retardant film is arranged between the galvanized steel strip and the outer sheath, and the thickness of the PE flame-retardant film is 0.05mm.

Preferably, the sealing sleeve is made of polyvinyl chloride, and insulating tapes are wrapped on two sides of the sealing sleeve.

Compared with the prior art, the utility model provides the hot-melt type intermediate joint with high safety of 35kv and below, which has the following beneficial effects:

according to the utility model, the silane crosslinked insulating sleeve is arranged on the outer side of the combined copper pipe, the silane coupling agent is introduced into the polyethylene sleeve, so that the strength and ageing resistance of the polyethylene sleeve are enhanced, the galvanized steel strip is arranged on the outer side of the silane crosslinked insulating sleeve, the compression resistance and wear resistance of the integral structure are enhanced, the water-blocking cable paste is filled between the silane crosslinked insulating sleeve and the galvanized steel strip, the water-blocking cable paste has good waterproof, dampproof and bonding effects, the outer side of the galvanized steel strip is provided with the outer sheath, the outer sheath is made of polyvinyl chloride material, the polyvinyl chloride material has good waterproof, antifreezing, sun-proof and ageing-resistant effects, the outer sheath is inserted with the steel wire made of phosphating tensile material, the steel wire can enhance the strength of the outer sheath, the outer sheath is also provided with penetrating holes in a penetrating manner, the rat and insect preventing agent can prevent the rat and insect from biting the outer sheath to damage the outer sheath, the PE flame retardant film is arranged between the galvanized steel strip and the outer sheath, the PE flame retardant film enhances the flame retardance of the integral structure, and the water resistance is further enhanced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is an exploded view of the overall structure of the present utility model;

fig. 3 is a schematic view of an intermediate joint mechanism of the present utility model.

In the figure: 1. a cable; 11. a cable core; 2. an intermediate joint mechanism; 21. combining copper pipes; 22. silane crosslinked insulating sleeves; 23. water-blocking cable paste; 24. galvanized steel strip; 25. an outer sheath; 26. penetrating holes; 27. a steel wire; 3. and (5) sealing the sleeve.

Detailed Description

The embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the present utility model, and the configurations of the structures described in the following embodiments are merely examples, and the 35kv and following hot-melt type intermediate joints with high safety according to the present utility model are not limited to the structures described in the following embodiments, and all other embodiments obtained by a person skilled in the art without making any creative effort are within the scope of the present utility model.

The utility model provides a high-safety 35kv and below hot-melt type intermediate joint which comprises two cables 1, wherein the two cables 1 are symmetrically arranged, the cables 1 are of 35kv and below, a cable core 11 is arranged in each cable 1, an intermediate joint mechanism 2 is arranged between the two cables 1, a sealing sleeve 3 is arranged between the intermediate joint mechanism 2 and each cable 1, the sealing sleeve 3 is arranged corresponding to the two cables 1, and the intermediate joint mechanism 2 is used for realizing connection between the two cables 1.

Further, the middle joint mechanism 2 comprises a combined copper pipe 21, a silane crosslinked insulating sleeve 22 is arranged on the outer side of the combined copper pipe 21, a silane coupling agent is introduced into the polyethylene sleeve to strengthen the strength and ageing resistance of the polyethylene sleeve, a galvanized steel strip 24 is arranged on the outer side of the silane crosslinked insulating sleeve 22, the galvanized steel strip 24 is used for enhancing the compression resistance and the wear resistance of the whole structure, a water-blocking cable paste 23 is filled between the silane crosslinked insulating sleeve 22 and the galvanized steel strip 24, and the water-blocking cable paste 23 has good waterproof, dampproof and bonding effects.

Further, the outer side of the galvanized steel strip 24 is provided with an outer sheath 25, the outer sheath 25 is made of polyvinyl chloride, the polyvinyl chloride has good waterproof, antifreezing, sun-proof and ageing-resistant effects, insertion holes are formed in the outer sheath 25 in a penetrating mode, six insertion holes are formed in the insertion holes and distributed around the circumferential direction of the outer sheath 25 in an array mode, steel wires 27 are inserted into the insertion holes, the steel wires 27 are made of phosphating tensile materials, the steel wires 27 can strengthen the strength of the outer sheath 25, penetrating holes 26 are formed in the outer sheath 25 in a penetrating mode, the penetrating holes 26 are uniformly formed in a group, rat and insect repellents are filled in the penetrating holes 26, rats, insects and the like can be prevented from damaging the outer sheath 25, PE flame-retardant films are arranged between the galvanized steel strip 24 and the outer sheath 25, the thickness of the PE flame-retardant films is 0.05mm, and the PE flame-retardant films strengthen the flame retardance of the whole structure, and waterproof performance is further improved.

Further, seal cover 3 is polyvinyl chloride material, and the seal cover 3 both sides of seal cover 3 all wrap up there is insulating tape, and the seal cover 3 cover of polyvinyl chloride material is located between cable 1 and the oversheath 25, and insulating tape wraps up the seam crossing between seal cover 3 and cable 1 and wraps up the seam crossing between seal cover 3 and oversheath 25, has guaranteed the leakproofness.

The working principle and the using flow of the utility model are as follows:

when the cable core 11 is used, a user thermally melts one end of the cable core 11 arranged in the cable 1, inserts one end of the cable core 11 into the combined copper pipe 21, combines the cable core 11 and the combined copper pipe 21 into a whole after cooling, combines the copper pipes 21 to electrically connect the cable cores 11 in the two cables 1, and then sleeves the sealing sleeve 3 between the cable 1 and the outer sheath 25, wraps the joint between the sealing sleeve 3 and the cable 1 through the insulating adhesive tape, and wraps the joint between the sealing sleeve 3 and the outer sheath 25 through the insulating adhesive tape.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a high 35kv of security and following hot melt formula intermediate head, includes cable (1), its characterized in that, cable (1) symmetry is provided with two, cable (1) inside is provided with cable core (11), two be provided with intermediate head mechanism (2) between cable (1), install seal cover (3) between intermediate head mechanism (2) and cable (1), seal cover (3) are provided with two corresponding cable (1), intermediate head mechanism (2) are used for realizing the connection between two cable (1).

2. The high-safety 35kv and below hot-melt type intermediate joint according to claim 1, wherein the intermediate joint mechanism (2) comprises a combined copper pipe (21), a silane crosslinked insulating sleeve (22) is arranged outside the combined copper pipe (21), a galvanized steel strip (24) is arranged outside the silane crosslinked insulating sleeve (22), and a water-blocking cable paste (23) is filled between the silane crosslinked insulating sleeve (22) and the galvanized steel strip (24).

3. The high-safety 35kv and below hot-melt type intermediate joint according to claim 2, wherein an outer sheath (25) is arranged on the outer side of the galvanized steel strip (24), the outer sheath (25) is made of polyvinyl chloride, insertion holes are formed in the outer sheath (25) in a penetrating manner, six insertion holes are formed, the six insertion holes are distributed around the circumferential direction array of the outer sheath (25), and steel wires (27) are inserted into the insertion holes.

4. A hot-melt type intermediate joint with high safety of 35kv and below according to claim 3, wherein the steel wire (27) is made of phosphating tensile material, the outer sheath (25) is further provided with penetrating holes (26) in a penetrating way, the penetrating holes (26) are uniformly provided with a group, and the penetrating holes (26) are filled with a rodenticide and an insect-resist agent.

5. A high safety hot melt type intermediate joint of 35kv and less according to claim 3, characterized in that a PE flame retardant film is provided between the galvanized steel strip (24) and the outer sheath (25), the PE flame retardant film having a thickness of 0.05mm.

6. The high-safety 35kv and below hot-melt type intermediate joint according to claim 1, wherein the sealing sleeve (3) is made of polyvinyl chloride, and insulating adhesive tapes are wrapped on two sides of the sealing sleeve (3).