CN212875371U - Waterproof reinforced cable intermediate joint - Google Patents

Abstract

The utility model provides a waterproof reinforced cable intermediate joint, which is used for connecting two cables and comprises an internal heat shrink tube, wherein the internal heat shrink tube is internally provided with a plurality of intermediate joint main bodies which are filled with waterproof daub, so that the internal water inlet of the internal heat shrink tube can be effectively prevented; the outside cover of internal heat shrink pipe is equipped with outer heat shrink pipe, is equipped with between outer heat shrink pipe and the internal heat shrink pipe and adds the reinforcing net, is favorable to improving the holistic structural strength of cable intermediate head, and wherein, add the supporting rod that the reinforcing net includes a plurality of circumference interval arrangements along the internal heat shrink pipe, is connected through the flexible band between each supporting rod, and the structure is comparatively simple. The utility model discloses have good waterproof performance and higher structural strength.

Description

Waterproof reinforced cable intermediate joint

Technical Field

The utility model relates to the technical field of cables, specifically be a waterproof reinforcement type cable intermediate head.

Background

Cables, which are an important component in electrical energy transmission networks, are used to carry electrical current. The length of the single-section cable is limited, and a plurality of sections of cables need to be connected through cable intermediate connectors in order to realize remote power supply. In actual use, the operating environment of part of cable lines is severe, even the cable lines are soaked in water for a long time, faults are easy to occur, the cable intermediate joint is used as a weak link in the cable lines, and system operation experience shows that most of cable line faults are related to the cable intermediate joint. Therefore, the cable intermediate joint with good waterproof performance and high structural strength is provided, and the safety and the reliability of a cable line are favorably improved.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough of prior art, the utility model provides a waterproof reinforcement type cable intermediate head has good waterproof performance and higher structural strength.

The utility model adopts the following technical proposal.

A waterproof reinforced cable intermediate joint is used for connecting two cables and comprises an internal heat shrinkage pipe, wherein a plurality of intermediate joint main bodies are arranged inside the internal heat shrinkage pipe, waterproof cement gum is filled in the internal heat shrinkage pipe, an external heat shrinkage pipe is sleeved outside the internal heat shrinkage pipe, a reinforcing net is arranged between the external heat shrinkage pipe and the internal heat shrinkage pipe and comprises a plurality of supporting rods which are arranged at intervals along the circumferential direction of the internal heat shrinkage pipe, and the supporting rods are connected through flexible belts.

Further, still include the cable, the cable includes the inner sheath, the inside of inner sheath is equipped with a plurality of phase lines, the outside of inner sheath is overlapped in proper order and is equipped with armor and oversheath, the phase line includes from interior to exterior sinle silk, insulating layer, semi-conducting layer and the shielding layer that sets gradually, the cable is equipped with naked sinle silk section, insulating layer section, semi-conducting layer section, shielding layer section, inner sheath section, armor layer section and oversheath section from the link in proper order along the axial.

Furthermore, the intermediate head main part includes the conductor connecting pipe, the outside cover of conductor connecting pipe is equipped with cold shrink pipe, the outside parcel of cold shrink pipe has the shielding net, the outside winding of shielding net has the semi-conducting strip.

Furthermore, the wire core section is inserted into the conductor connecting pipe, the end part of the cold shrink pipe extends to the semi-conductive layer section and is provided with a first waterproof sealing adhesive tape layer, and the shielding net extends to the shielding layer section and is fixedly connected with the shielding layer section through a middle constant force spring.

The shielding layer section of the phase line is fixedly connected with the shielding layer section of the corresponding phase line through a small constant force spring, and the other end of the short-circuit ground wire is overlapped on the armor layer section.

Further, still include the pyrocondensation dactylotheca, the pyrocondensation dactylotheca includes the main tributary pipe to and a plurality of dactylotheca pipes with the main tributary pipe intercommunication, the outside of interior sheath section is located to the main tributary pipe cover, and each dactylotheca pipe is located the outside of each phase line correspondingly to the cover one by one, and the parcel is lived little constant force spring.

Furthermore, a second waterproof sealing adhesive tape layer is arranged between the main sleeve and the inner sheath section, and the middle section of the short circuit ground wire is clamped on the second waterproof sealing adhesive tape layer.

Furthermore, the end part of the internal heat shrinkage pipe extends to the inner jacket section, a third waterproof sealing tape layer is arranged between the internal heat shrinkage pipe and the inner jacket section, a plurality of long grounding wires are arranged on the outer side of the internal heat shrinkage pipe, and the end parts of the long grounding wires extend to the armor layer section; the high-voltage grounding wire is characterized by further comprising a large constant force spring, the large constant force spring fixes the long grounding wire and the short grounding wire on the outer surface of the armor layer section, and the middle section of the long grounding wire is tightly attached to the outer surface of the inner heat shrinkage pipe through the phase color tape.

Furthermore, the support rod extends to the armor layer section and is fixedly connected with the armor layer section through the hose clamp.

Furthermore, the end of the outer heat-shrinkable tube extends to the outer sheath section, and waterproof cement gum is filled between the end of the outer heat-shrinkable tube and the outer sheath section, and the outer heat-shrinkable tube is a zipper-type heat-shrinkable tube.

The utility model has the advantages that:

the utility model provides a waterproof reinforced cable intermediate joint, including the internal heat shrink tube, wherein, the inside of internal heat shrink tube is equipped with a plurality of intermediate joint main parts, and is filled with waterproof daub, can prevent the inside of internal heat shrink tube from intaking effectively; the outside cover of internal heat shrink pipe is equipped with outer heat shrink pipe, is equipped with between outer heat shrink pipe and the internal heat shrink pipe and adds the reinforcing net, is favorable to improving the holistic structural strength of cable intermediate head, and wherein, add the supporting rod that the reinforcing net includes a plurality of circumference interval arrangements along the internal heat shrink pipe, is connected through the flexible band between each supporting rod, and the structure is comparatively simple. The utility model discloses have good waterproof performance and higher structural strength.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram illustrating an external structure of an inner heat shrinkable tube according to an embodiment;

fig. 2 is a schematic view illustrating an internal structure of the internal heat shrinkable tube according to the present embodiment.

Reference is made to the accompanying drawings in which:

a middle joint body 1, a conductor connecting pipe 11, a cold-shrink pipe 12, a shielding net 13, a semi-conductive belt 14, a first waterproof sealing adhesive tape layer 15, a middle constant force spring 16, a short-circuit ground wire 17, a small constant force spring 18,

an inner heat-shrinkable tube 2 is arranged,

the reinforcing mesh 3, the support rods 31, the flexible bands 32,

an outer heat-shrinkable tube 4 is provided,

a cable 5, a phase line 5a, a core section 51, an insulation layer section 52, a semiconductive layer section 53, a shield layer section 54, an inner sheath section 55, an armor layer section 56, an outer sheath section 57, a second waterproof sealing tape layer 58,

a heat-shrinkable finger sleeve 6, a main sleeve 61, a finger sleeve 62, a third waterproof sealing adhesive tape layer 63,

a long ground wire 71, a large constant force spring 72, a phase ribbon 73,

a hose clamp 8.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent. It will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Referring to the attached drawings, the embodiment provides a waterproof reinforced cable intermediate joint for connecting two cables 5, which comprises an inner heat-shrinkable tube 2, a short-circuit ground wire 17, a long-circuit ground wire 71 and a heat-shrinkable finger sleeve 6, wherein a plurality of intermediate joint bodies 1 are arranged inside the inner heat-shrinkable tube 2 and filled with waterproof cement gum, an outer heat-shrinkable tube 4 is sleeved outside the inner heat-shrinkable tube 2, and a reinforcing net 3 is arranged between the outer heat-shrinkable tube 4 and the inner heat-shrinkable tube 2. The cable 5 comprises an inner sheath, a plurality of phase lines 5a are arranged inside the inner sheath, an armor layer and an outer sheath are sequentially sleeved on the outer side of the inner sheath, the phase lines 5a comprise a wire core, an insulating layer, a semi-conducting layer and a shielding layer which are sequentially arranged from inside to outside, and the cable is sequentially provided with a naked wire core section 51, an insulating layer section 52, a semi-conducting layer section 53, a shielding layer section 54, an inner sheath section 55, an armor layer section 56 and an outer sheath section 57 along the axial direction from the connecting end.

Intermediate head main part 1 includes conductor connecting pipe 11, cable 5's sinle silk section 51 inserts in conductor connecting pipe 11, conductor connecting pipe 11's outside cover is equipped with cold shrink pipe 12, cold shrink pipe 12's tip extends to semi-conductive layer section 53, and be equipped with first waterproof sealing tape layer 15, first waterproof sealing tape layer 15 can effectually prevent that the inside of cold shrink pipe 12 from intaking, cold shrink pipe 12's outside parcel has shielding net 13, shielding net 13 extends to shielding layer section 54, and through well constant force spring 16 and shielding layer section 54 fixed connection, shielding net 13's outside winding has semi-conductive belt 14, semi-conductive belt 14 parcel covers shielding net 13 and well constant force spring 16.

The heat-shrinkable finger sleeve 6 comprises a main sleeve 61 and a plurality of finger sleeves 62 communicated with the main sleeve 61, one end of a short grounding wire 17 is fixedly connected with the shielding layer section 54 of the corresponding phase line 5a through a small constant force spring 18, the other end of the short grounding wire 17 is lapped on the armor layer section 56, the main sleeve 61 of the heat-shrinkable finger sleeve 6 is arranged on the outer side of the inner sheath section 55, each finger sleeve 62 is sleeved on the outer side of each phase line 5a one by one correspondingly and wraps the small constant force spring 18, a second waterproof sealing adhesive tape layer 58 is arranged between the main sleeve 61 and the inner sheath section 55, and the middle section of the short grounding wire 17 is clamped on the second waterproof sealing adhesive tape layer 58. The second waterproof sealing tape layer 58 is formed by a waterproof sealing tape wound on the outer side of the inner sheath section 55, and is used for fixing the short grounding wire 17 and effectively preventing water from entering a gap between the main sleeve 61 and the inner sheath section 55.

The end part of the inner heat shrinkable tube 2 extends to the inner jacket section 55, a third waterproof sealing tape layer 63 is arranged between the inner heat shrinkable tube 2 and the inner jacket section 55, a plurality of long grounding wires 71 are arranged on the outer side of the inner heat shrinkable tube 2, the end part of each long grounding wire 71 extends to the armor layer section 56, the long grounding wires 71 and the short grounding wires 17 are fixed on the outer surface of the armor layer section 56 together by a large constant force spring 72, and the middle section of each long grounding wire 71 is tightly attached to the outer surface of the inner heat shrinkable tube 2 through a phase-color tape 73. The third waterproof sealing tape layer 63 is formed by a waterproof sealing tape wound on the outer side of the main sleeve 61, and can effectively prevent water from entering a gap between the inner heat shrinkable tube 2 and the main sleeve 61.

The reinforcing net 3 comprises a plurality of support rods 31 arranged along the circumferential direction of the inner heat shrinkable tube 2 at intervals, the support rods 31 are connected through flexible belts 32, and the support rods 31 extend to the armor layer section 56 and are fixedly connected with the armor layer section 56 through the hose clamp 8. In the present embodiment, the support rod 31 and the flexible band 32 are both made of a metal material.

The tip of outer heat shrinkable tube 4 extends to outer jacket section 57 to, it has waterproof clay to fill between outer heat shrinkable tube 4 and the outer jacket section 57, can effectually prevent that water from getting into the gap between outer heat shrinkable tube 4 and the outer jacket section 57. Preferably, the outer heat shrinkable tube 4 is a conventional zipper type heat shrinkable tube.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The waterproof reinforced cable intermediate joint is characterized by comprising an internal heat shrinkage pipe, wherein a plurality of intermediate joint main bodies are arranged inside the internal heat shrinkage pipe and filled with waterproof cement, an external heat shrinkage pipe is sleeved outside the internal heat shrinkage pipe, a reinforcing net is arranged between the external heat shrinkage pipe and the internal heat shrinkage pipe and comprises a plurality of supporting rods which are arranged at intervals along the circumferential direction of the internal heat shrinkage pipe, and the supporting rods are connected through flexible belts.

2. The waterproof reinforced cable intermediate joint according to claim 1, wherein the cable comprises an inner sheath, a plurality of phase lines are arranged inside the inner sheath, an armor layer and an outer sheath are sequentially sleeved outside the inner sheath, the phase lines comprise a wire core, an insulating layer, a semi-conducting layer and a shielding layer, the wire core, the insulating layer, the semi-conducting layer and the shielding layer are sequentially arranged from inside to outside, and the cable is sequentially provided with a bare wire core section, an insulating layer section, a semi-conducting layer section, a shielding layer section, an inner sheath section, an armor layer section and an outer sheath section from the connecting end along the axial direction.

3. The waterproof reinforced cable intermediate joint as claimed in claim 2, wherein the intermediate joint body comprises a conductor connecting pipe, a cold shrink pipe is sleeved outside the conductor connecting pipe, a shielding net is wrapped outside the cold shrink pipe, and a semi-conducting belt is wrapped outside the shielding net.

4. The waterproof reinforced cable intermediate joint according to claim 3, wherein the core segment is inserted into the conductor connecting pipe, the end of the cold shrink pipe extends to the semi-conductive layer section and is provided with a first waterproof sealing tape layer, and the shielding net extends to the shielding layer section and is fixedly connected with the shielding layer section through a middle constant force spring.

5. The waterproof reinforced cable intermediate joint according to claim 2, further comprising a plurality of short-circuit ground wires corresponding to the phase lines one by one, wherein one end of each short-circuit ground wire is fixedly connected with the shielding layer section of the corresponding phase line through a small constant force spring, and the other end of each short-circuit ground wire is lapped on the armor layer section.

6. The waterproof reinforced cable intermediate joint according to claim 5, further comprising a heat-shrinkable finger sleeve, wherein the heat-shrinkable finger sleeve comprises a main sleeve and a plurality of finger sleeves communicated with the main sleeve, the main sleeve is sleeved outside the inner sheath section, and each finger sleeve is sleeved outside each phase line one by one correspondingly and wraps the small constant force spring.

7. The middle joint of a waterproof reinforced cable as claimed in claim 6, wherein a second waterproof sealing tape layer is disposed between the main sleeve and the inner sheath section, and the middle section of the short ground wire is clamped on the second waterproof sealing tape layer.

8. The waterproof reinforced cable intermediate joint according to claim 5, wherein the end of the inner heat-shrinkable tube extends to the inner jacket section, a third waterproof sealing tape layer is arranged between the inner jacket section and the end of the inner heat-shrinkable tube, a plurality of long grounding wires are arranged outside the inner heat-shrinkable tube, and the ends of the long grounding wires extend to the armor layer section;

the high-voltage grounding wire is characterized by further comprising a large constant force spring, the large constant force spring fixes the long grounding wire and the short grounding wire on the outer surface of the armor layer section, and the middle section of the long grounding wire is tightly attached to the outer surface of the inner heat shrinkage pipe through the phase color tape.

9. The waterproof reinforced cable intermediate joint according to claim 2, wherein the support rod extends to the armor layer section and is fixedly connected with the armor layer section through the hose clamp.

10. The middle joint of a waterproof reinforced cable of claim 2, wherein the end of the outer heat-shrinkable tube extends to the outer sheath section, and waterproof cement is filled between the end of the outer heat-shrinkable tube and the outer sheath section, and the outer heat-shrinkable tube is a zipper-type heat-shrinkable tube.

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