CN219181169U

CN219181169U - Outdoor waterproof connecting device of shrinkage type power cable

Info

Publication number: CN219181169U
Application number: CN202223258346.0U
Authority: CN
Inventors: 刚千惠; 王京; 李辉; 华一阳; 史琳美
Original assignee: Jinzhou Electric Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; State Grid Corp of China SGCC
Current assignee: Jinzhou Electric Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; State Grid Corp of China SGCC
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-06-13
Anticipated expiration: 2032-12-06

Abstract

The utility model provides an outdoor waterproof connecting device of shrinkage type power cable, includes the connecting device body, the connecting device body is equipped with the cable passageway that runs through its both ends, the passageway middle part sets up cable connection portion, cable connection portion both ends are equipped with fixed part one and fixed part two, just be equipped with empty slot one and empty slot two between fixed part one and cable connection portion, cable connection portion and the fixed part two respectively, fixed part one, fixed part two and cable connection portion outside set up insulating cover, the outside of insulating cover sets up the support sleeve, the outside of support sleeve sets up cold shrink type dactylotheca, the outside of shrinkage type dactylotheca sets up the clamp protection cover. The beneficial effects are that: the device is reliable in fixation, time-saving, labor-saving and good in waterproof effect.

Description

Outdoor waterproof connecting device of shrinkage type power cable

Technical Field

The utility model relates to the technical field of power cable connection, in particular to an outdoor waterproof connection device for a cold-shrink power cable.

Background

The power cable is a cable product for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under river-crossing seawater.

In the power construction process, a problem of insufficient cable length occurs after a long distance of cable is laid, or a problem of insufficient cable length occurs when the remaining cable is used for laying a new line, and at this time, two cables need to be connected. At present, a cable connection device is mainly adopted, but the prior art has the following problems: because the outdoor construction environment is bad, when the existing cable connecting device is used, rainwater is permeated into the device due to poor sealing effect between connecting joints, so that the electric power operation safety is affected; the common connecting device is poor in stability and inconvenient to operate, and when being pulled by external force, the common connecting device is easy to loose, so that the conductivity of the cable is reduced, and even the condition of power failure occurs.

Disclosure of Invention

In order to solve the technical problems, the outdoor waterproof connecting device for the cold-shrink power cable is provided, and the device is reliable in fixation, time-saving, labor-saving and good in waterproof effect.

The technical scheme of the utility model is as follows:

the outdoor waterproof connecting device of cold-shrink type power cable is characterized in that: including the connecting device body, the connecting device body is equipped with the cable passage who runs through its both ends, the passageway middle part is equipped with cable connection portion, cable connection portion both ends are equipped with fixed part one and fixed part two, just be equipped with the empty slot one between fixed part one and the cable connection portion, be equipped with the empty slot two between cable connection portion and the fixed part two, fixed part one, fixed part two and cable connection portion outside set up insulating cover, the outside of insulating cover sets up the supporting sleeve, the outside of supporting sleeve sets up cold shrink type dactylotheca, the outside of cold shrink type dactylotheca sets up the clamping protection cover.

Further preferably, the first fixing part comprises a first rubber ring, the inner wall of the first rubber ring is provided with a first spring piece which corresponds up and down, the second fixing part comprises a second rubber ring, and the inner wall of the second rubber ring is provided with a second spring piece which corresponds up and down.

Further preferably, the cable connection part comprises a third rubber ring, a cable protecting sleeve is arranged on the inner wall of the third rubber ring, and a conductive sleeve is arranged on the inner wall of the protecting sleeve.

Further preferably, the side wall of the clamping protective sleeve is provided with a rectangular open slot along the direction of the central hole, two sides of the open slot are respectively provided with a clamping plate I and a clamping plate II, the clamping plate I is provided with a pair of through holes which are bilaterally symmetrical, and the clamping plate II is provided with a pair of threaded holes which correspond to the through holes.

Further preferably, the support sleeve is spiral, and is arranged on the inner wall of the cold-shrink finger sleeve left and right, and is used for supporting the cold-shrink finger sleeve, so that the support sleeve is conveniently pulled out after the electric wire is inserted.

Further preferably, the clamping protective sleeve is equal in length with the insulating sleeve, and two ends of the clamping protective sleeve are aligned, so that after the cable is installed, the cable is clamped conveniently; the length of the cold-shrink type fingerstall is longer than that of the insulating sleeve, and the two ends of the cold-shrink type fingerstall are longer than the two ends of the insulating sleeve, so that after the cable is installed, the cable is wrapped by cold shrink, and a waterproof effect is achieved; the whole length of the support sleeve is greater than the length of the cold shrink finger sleeve, and the exposed ends at the two ends of the support sleeve are longer than the two ends of the cold shrink finger sleeve.

Further preferably, a first cable connecting end channel is arranged in the center of the conductive sleeve, and two ends of the first channel are provided with a second conical connecting port; the cable protection sleeve center is provided with a first conductive sleeve installation channel, and two ends of the first conductive sleeve installation channel are provided with a first conical connection port which is connected with a second conical connection port and is positioned on the same inclined plane, so that the cable inner core is fully contacted with the conductive sleeve, and the reliability of cable connection is ensured.

The beneficial effects of the utility model are as follows: the cable wire is pre-tightened through the first fixing part, the second fixing part and the cable connecting part, and the two cable wires are reliably fixed through the clamping protecting sleeve; through taking out the support sleeve, utilize the radial pressure of cold shrink dactylotheca to form the cladding to the cable, and then accomplish the waterproof to connecting device and internal connection line, consequently waterproof effect is good and labour saving and time saving.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of the external structure of the present utility model;

FIG. 4 is a schematic view of the exterior structure of the present utility model after the cable is secured;

FIG. 5 is a schematic view of the internal structure of the cable of the present utility model after the cable is secured;

in the figure: the cable channel-1, the connecting part-2, the rubber ring-three-201, the cable protective sleeve-202, the conductive sleeve mounting channel-202 a, the conical connector-202 b, the conductive sleeve-203, the cable connecting end channel-203 a, the conical connector-two-203 b, the fixing part-3, the rubber ring-301, the spring piece-302, the fixing part-two-4, the rubber ring-two-401, the spring piece-two-402, the empty slot-5, the empty slot-two-6, the insulating sleeve-7, the supporting sleeve-8, the cold shrink type finger sleeve-9, the clamping protective sleeve-10, the rectangular opening slot-1001, the clamping plate-1002, the through hole-1002 a, the clamping plate-two-1003, the threaded hole-1003 a and the bolt-11.

Detailed Description

As shown in fig. 1-2, an outdoor waterproof connection device for cold-shrink power cables comprises a connection device body, wherein the connection device body is provided with a cable channel 1 penetrating through two ends of the connection device body, the middle part of the channel 1 is provided with a connection part 2, two sides of the connection part 2 are respectively provided with a first fixing part 3 and a second fixing part 4, a first empty slot 5 is arranged between the first fixing part 3 and the connection part 2, a second empty slot 6 is arranged between the connection part 2 and the second fixing part 4, an insulating sleeve 7 is sleeved outside the first fixing part 3, the second fixing part 4 and the connection part 2, a supporting sleeve 8 is sleeved outside the insulating sleeve 7, a cold-shrink finger sleeve 9 is sleeved outside the supporting sleeve 8, and a clamping protective sleeve 10 is arranged outside the cold-shrink finger sleeve 9.

The first fixing part 3 comprises a first rubber ring 301, the inner wall of the first rubber ring 301 is fixed with a first spring piece 302 which is vertically symmetrical through filling glue, the second fixing part 4 comprises a second rubber ring 401, and the inner wall of the second rubber ring 401 is fixed with a second spring piece 402 which is vertically symmetrical through filling glue.

The cable connecting part 2 comprises a third rubber ring 201, a protective sleeve 202 is sleeved and fixed on the inner wall of the third rubber ring 201, and a conductive sleeve 203 is sleeved and fixed on the inner wall of the protective sleeve 202.

As shown in fig. 3, the side wall of the clamping protection sleeve 10 is provided with a rectangular opening groove 1001 along the direction of the central hole, the upper and lower sides of the opening groove are respectively provided with a first clamping plate 1002 and a second clamping plate 1003, the first clamping plate 1002 is provided with a pair of bilateral symmetry through holes 1002a, the second clamping plate 1003 is provided with a pair of bilateral symmetry threaded holes 1003a corresponding to the through holes 1002a, and after the upper surface of the first clamping plate 1002 is provided with bolts 11 passing through the through holes 1002a, the bolts are locked with the threaded holes 1003a to complete the fixation of the cable.

As shown in fig. 1-2, the two support sleeves 8 are spiral, are arranged on the inner wall of the cold-shrink finger sleeve 9 left and right, and are used for supporting the cold-shrink finger sleeve 9, so that the support sleeves 8 can be conveniently pulled out after the electric wires are inserted.

The clamping protective sleeve 10 is equal in length with the insulating sleeve 7, and two ends of the clamping protective sleeve are aligned, so that after the cable is installed, the cable is clamped conveniently; the length of the cold-shrink fingerstall 9 is longer than that of the insulating sleeve 7, and the two ends of the cold-shrink fingerstall 9 are longer than the two ends of the insulating sleeve 7, so that after the cable is installed, the cable is wrapped by cold shrink, and a waterproof effect is achieved; the whole length of the two support sleeves 8 is greater than the length of the cold shrink finger sleeve 9, and the exposed ends of the two support sleeves 8 are longer than the two ends of the cold shrink finger sleeve 9, so that the support sleeves 8 can be conveniently pulled out.

The cold-shrink fingerstall 9 is made of silicon rubber, and can keep constant holding force and breathe together with the cable.

As shown in fig. 2, a first cable connection channel 203a is disposed in the center of the conductive sleeve 203, and two tapered connection ports 203b are disposed at two ends of the first cable connection channel 203 a; the center of the cable protection sleeve 202 is provided with a first conductive sleeve mounting channel 202a, and two ends of the cable protection sleeve 202 are provided with a first conical connector 202b which is connected with a second conical connector 203b and is positioned on the same inclined plane, so that the inner core of the cable is fully contacted with the connecting part 2, and the reliability of cable connection is ensured.

The specific working process comprises the following steps: two cables 12 which are needed to be connected and fixed are inserted into the two ends of the waterproof connecting device, after the two cables are inserted into place, the spiral supporting sleeves 8 are respectively pulled out from the two sides, the cables 12 are wrapped by the cold-shrink finger sleeves 9 to prevent water from flowing in, then the bolts 11 are locked, the fixation of the cables is ensured, and the installation is completed as shown in fig. 4-5.

Claims

1. An outdoor waterproof connecting device of shrinkage formula power cable, its characterized in that: including the connecting device body, the connecting device body is equipped with the cable passage who runs through its both ends, the passageway middle part is equipped with cable connection portion, cable connection portion both sides are equipped with fixed part one and fixed part two respectively, just be equipped with the empty slot one between fixed part one and the cable connection portion, be equipped with the empty slot two between cable connection portion and the fixed part two, fixed part one, fixed part two and cable connection portion outside set up insulating cover, the outside of insulating cover sets up the support sleeve, the outside of support sleeve sets up cold shrink type dactylotheca, the outside of cold shrink type dactylotheca sets up the clamp protection cover.

2. The outdoor waterproof connection device for the cold-shrink power cable of claim 1, wherein the first fixing portion comprises a first rubber ring, a first spring piece which corresponds up and down is arranged on the inner wall of the first rubber ring, the second fixing portion comprises a second rubber ring, and a second spring piece which corresponds up and down is arranged on the inner wall of the second rubber ring.

3. The outdoor waterproof connection device for cold-shrink power cables of claim 1, wherein the cable connection portion comprises a rubber ring III, a cable protection sleeve is arranged on the inner wall of the rubber ring III, and a conductive sleeve is arranged on the inner wall of the protection sleeve.

4. The outdoor waterproof connection device for the cold-shrink power cable of claim 1, wherein a rectangular open slot is formed in the side wall of the clamping protective sleeve along the direction of the central hole, a first clamping plate and a second clamping plate are respectively arranged on two sides of the open slot, a pair of through holes are formed in the first clamping plate in a bilateral symmetry mode, and a pair of threaded holes corresponding to the through holes are formed in the second clamping plate.

5. The outdoor waterproof connection device for cold-shrink power cables according to claim 1, characterized in that: the support sleeve is spiral, and is two, arranges about cold shrink type dactylotheca inner wall for support cold shrink type dactylotheca, be convenient for the extraction of support sleeve behind the electric wire grafting.

6. The outdoor waterproof connection device for cold-shrink power cables according to claim 1, characterized in that: the clamping protective sleeve is equal in length with the insulating sleeve, and two ends of the clamping protective sleeve are aligned; the length of the cold-shrink fingerstall is longer than that of the insulating sleeve, and two ends of the cold-shrink fingerstall are longer than two ends of the insulating sleeve; the whole length of the support sleeve is greater than the length of the cold shrink finger sleeve, and the exposed ends at the two ends of the support sleeve are longer than the two ends of the cold shrink finger sleeve.

7. A cold shrink type power cable outdoor waterproof connection device according to claim 3, characterized in that: the center of the conductive sleeve is provided with a first cable connection end channel, and two ends of the first channel are provided with a second conical connection port; the cable protection sleeve is characterized in that a first conductive sleeve mounting channel is arranged in the center of the cable protection sleeve, and a third conical connector which is connected with the second conical connector and is positioned on the same inclined plane is arranged at two ends of the first conductive sleeve mounting channel.