CN210074234U

CN210074234U - 0.4kV low tension cable intermediate head connecting device

Info

Publication number: CN210074234U
Application number: CN201921130530.2U
Authority: CN
Inventors: 李鹏; 韩琛旭; 朱芳宇; 付建军; 刘利民; 武艳丽; 董志鹏; 庞昊; 万柄杰; 孟令众; 葛燕
Original assignee: Wuhai Electric Power Bureau Inner Mongolia Power Group Co ltd
Current assignee: Wuhai Electric Power Bureau Inner Mongolia Power Group Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-02-14
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a 0.4kV low tension cable intermediate head connecting device for cable junction fixed effect is poor among the solution prior art, problem that the butt joint cable is long consuming time. The method comprises the following steps: one end of the male connector is a plug, and the other end of the male connector is a wiring part; one end of the female joint is a slot, and the other end of the female joint is a wiring part; the plug is cylindrical, a clamping head is fixedly connected to the side surface of the plug, and the clamping head is cuboid and inclined towards the direction of the male connector wiring part; the shape of the slot is matched with that of the plug, the slot is a cylindrical groove, a semicircular groove is radially arranged on the inner wall of the cylindrical groove and can accommodate a chuck to pass through, a guide groove is circumferentially arranged on the inner wall of the cylindrical groove, the guide groove is an eccentric groove, the depth of the guide groove becomes shallow gradually, and the chuck is screwed into the guide groove until being clamped; the wiring portion is a hollow round hole, and a wire pressing threaded hole communicated with the hollow round hole is formed in the outer side of the wiring portion. The beneficial effects are that it is short to dock cable consuming time, have improved the power supply reliability, reduce user's trouble power off time, improve staff's work efficiency.

Description

0.4kV low tension cable intermediate head connecting device

Technical Field

The utility model relates to a power equipment technical field especially relates to a 0.4kV low tension cable intermediate head connecting device.

Background

The 0.4kV low-voltage cable is a power cable with rated voltage of 0.4kV, is used for directly transmitting electric energy to low-voltage electric equipment and is an important component of a low-voltage distribution system. The low-voltage cable is composed of a wire core, an insulating layer and a protective layer. The wire core is used for conducting current and is generally formed by stranding a plurality of copper wires or a plurality of aluminum wires.

With the increasing dependence of society on electric power, the fault power failure not only brings great influence to the daily life of residents, but also threatens the life and property safety of people and influences the safe and stable operation of society. In order to solve various inconveniences brought to power consumers by fault power failure, an emergency power supply generator car is used for load transfer during fault emergency repair, the emergency power supply car provides an important device for temporary power supply for the users, the temporary power supply can be rapidly accessed to resident users during the fault emergency repair, the power failure time of the users is effectively shortened, and the normal power utilization of the residents is ensured.

At present, a cable of an emergency power supply vehicle generally adopts a flexible rubber flexible cable, and the length of a single cable is generally 30-50 meters. The cable is characterized in that two sides of the cable are peeled and then are in compression joint with peep hole copper connecting terminals, namely 'copper noses', and the copper noses are used as cable connectors. However, in the actual electricity protection process, the environments such as an underground power distribution room are very narrow and small, tools are very difficult to use, and the left and right swinging of the cable can cause the bolt to be loosened, so that the virtual connection and other conditions occur. Meanwhile, the used bolt can generate a bulge after being wrapped in an insulating way, and the insulating tape does not have enough mechanical strength, so that the insulating tape is easy to wear and drop due to friction with the ground, and electric shock danger is caused. Emergency power supply work requires rapid and safe restoration of power consumption of users, so that fixing speed and firmness between cable copper noses are of great importance. The traditional operation method consumes a great deal of physical power and time.

Disclosure of Invention

An embodiment of the utility model provides a 0.4kV low tension cable intermediate head connecting device for it is poor to solve among the prior art cable junction fixed effect, and insulating effect is not good, problem that the butt joint cable length consuming time is long.

The embodiment of the utility model provides a 0.4kV low tension cable intermediate head connecting device, include: a male connector and a female connector; one end of the male connector is a plug, and the other end of the male connector is a wiring part; one end of the female joint is a slot, and the other end of the female joint is a wiring part; the plug is cylindrical, a clamping head is fixedly connected to the side surface of the plug, and the clamping head is cuboid and inclined towards the direction of the male connector wiring part; the shape of the slot is matched with that of the plug, the slot is a cylindrical groove, a semicircular groove is radially arranged on the inner wall of the cylindrical groove and can accommodate a chuck to pass through, a guide groove is circumferentially arranged on the inner wall of the cylindrical groove, the guide groove is an eccentric groove, the depth of the guide groove becomes shallow gradually, and the chuck is screwed into the guide groove until being clamped; the wiring portion is a hollow round hole, and a wire pressing threaded hole communicated with the hollow round hole is formed in the outer side of the wiring portion.

Preferably, the male and female connectors are hexagonal prisms.

Preferably, the outer wall of the slot is provided with a fastening threaded hole communicated with the cylindrical groove, and a position corresponding to the plug is provided with a limiting hole.

Preferably, the guide groove is divided into two sections, the front half section is an equal-depth guide groove, the depth of the rear half section is gradually reduced and is smaller than that of the front half section, and the through hole position of the fastening threaded hole is arranged in the front half section.

Preferably, the portion of the male connector where the male and female connector slots contact is coated with a silicone layer.

Preferably, the male connector and the female connector are externally provided with insulating sheaths, the front ends of the two insulating sheaths can be buckled, and the rear ends of the two insulating sheaths wrap the outer side of the cable.

Preferably, the insulating sheath is provided with anti-skid grains.

Preferably, the number of the wire pressing threaded holes of the wiring portion is 2.

The utility model discloses beneficial effect includes: the tool is suitable for all emergency power protection work, shortens the power failure time, improves the power supply reliability, improves the high-quality service, reduces the fault power failure time of a user, and improves the working efficiency of workers.

Drawings

Fig. 1 is a schematic perspective view of a male joint and a female joint of a 0.4kV low-voltage cable intermediate joint connecting device in an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a male joint and a female joint of a 0.4kV low-voltage cable intermediate joint connecting device in an embodiment of the present invention;

fig. 3 is a schematic perspective view of a male connector according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a male connector according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a female joint according to an embodiment of the present invention;

fig. 6 is a schematic radial sectional structural view of a female joint according to an embodiment of the present invention;

fig. 7 is a schematic circumferential sectional structure view of a female joint according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a male connector and a female connector with an insulating sheath according to an embodiment of the present invention.

Detailed Description

In order to provide a scheme for shortening the cable connection time, timely recovering the power supply of the user and ensuring the safety, the following description is made in conjunction with the attached drawings of the specification to describe the preferred embodiment of the present invention.

Referring to fig. 1-7, an embodiment of the present invention provides a 0.4kV low-voltage cable intermediate head connecting device, including: a male connector 1 and a female connector 2; one end of the male connector 1 is provided with a plug 11, and the other end is provided with a wiring part 12; one end of the female joint 2 is a slot 21, and the other end is a wiring part 12; the plug 11 is cylindrical, a clamping head 13 is fixedly connected to the side surface of the plug 11, and the clamping head 13 is cuboid and inclined towards the wiring part 12 of the male connector 1; the shape of the slot 21 is matched with that of the plug 11, the slot 21 is a cylindrical groove, a semicircular groove 22 is radially arranged on the inner wall of the cylindrical groove, the semicircular groove 22 can accommodate the chuck 13 to pass through, a guide groove 23 is circumferentially arranged on the inner wall of the cylindrical groove, the guide groove 23 is an eccentric groove, the depth of the eccentric groove becomes gradually shallow, and the chuck 13 is screwed into the guide groove 23 until being clamped; the wiring portion 12 is a hollow round hole, and a wire pressing threaded hole 121 communicated with the hollow round hole is formed in the outer side of the wiring portion 12.

Specifically, the male connector 1 and the female connector 2 are hexagonal prisms. Not only is convenient for grasping, but also can effectively prevent relative sliding when the insulating sheath is sleeved on the outer side. The male connector 1 and the female connector 2 are made of copper, have high strength and hardness, are not easy to deform, have high conductivity and stable chemical performance, and do not generate oxidation reaction with a copper wire when working at normal temperature.

The outer wall of the slot 21 of the female joint 2 is provided with a fastening threaded hole 24 communicated with the cylindrical groove, and the corresponding position of the plug 11 is provided with a limiting hole 14. Can ensure that dop 13 rotates to certain degree of depth, fix from holding screw hole 24 through hexagon socket head cap screw, fall on spacing hole 14 and not only guaranteed the effect of chucking, connect also more firm. And the inner hexagon screw is screwed in the place without the bulge with the plane.

The guide groove 23 is divided into two sections, the front half section is the equal-depth guide groove 23, the depth of the rear half section of the guide groove 23 is gradually reduced and is smaller than that of the front half section of the guide groove 23, and the penetrating position of the fastening threaded hole 24 is arranged on the front half section of the guide groove 23. The guide groove 23 is an eccentric groove, but the depth of the front half section is unchanged, so that the chuck 13 is screwed into a certain depth and is not easy to disengage, the depth of the rear half section is gradually reduced, and after screwing, the chuck 13 is clamped more and more tightly to form an interference fit effect. Dop 13 is the cuboid arch, and the side is seen, has the angle of cable end slope, can avoid the problem that the not enough male joint 1 that causes of precision and female joint 2 contact site gap are big in the course of working, and the block is inseparabler for male joint 1 and female joint 2's contact is inseparabler. The portion of the male connector 1 where the male plug 11 and the female connector 2 contact each other is coated with a silicone layer. The contact area of the male connector 1 and the female connector 2 is increased to meet the current-carrying capacity, so that the conductivity is better. Referring specifically to fig. 2, the chuck 13 is not shown in this cross-section in fig. 2, and thus the chuck 13 is not shown in the cross-section. Referring to fig. 3, the upper chuck 13 is located at a position not in a section with the lower fastening screw hole 24, and referring to fig. 4, the upper part is shown as the limiting hole 14 into which the socket head cap screw falls below the fastening screw hole 24.

Referring to fig. 8, the external parts of the male connector 1 and the female connector 2 are provided with the insulating sheaths 3, the front ends of the two insulating sheaths 3 can be buckled, and the rear ends of the two insulating sheaths are wrapped outside the cable. The insulating sheath 3 is provided with anti-skid grains. The insulating sheath 3 is made of butyl rubber. Has the characteristic of good wear resistance.

The number of the wire pressing screw holes 121 of the wire connection portion 12 is 2. So that the wire connecting portion 12 is more firm and is not easily disengaged.

Through the utility model discloses well 0.4kV low tension cable intermediate head connecting device carries out cable high-speed joint's process as follows: firstly, respectively sleeving two insulating sheaths 3 on two cable wires to be connected, respectively plugging conductive wire cores at the front ends of the two cable wires into a wiring part 12 of a male connector 1 and a wiring part 12 of a female connector 2, tightly pressing the conductive wire cores on the wiring part 12 through an inner hexagonal screw, then coating a silicone grease layer, aligning a clamping head 13 of the male connector 1 with a semicircular groove 22 of the female connector 2, inserting the clamping head into a slot 21, after inserting to the bottom, rotating anticlockwise to clamp, and fixing the male connector 1 and the female connector 2 again through the inner hexagonal screw to ensure that the male connector 1 and the female connector 2 cannot rotate; and (3) sheathing the insulating sheath 3 on the male connector 1 and the female connector 2 towards the middle, and buckling the interface of the insulating sheath 3 to complete the quick connection of the two cables.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a 0.4kV low tension cable intermediate head connecting device which characterized in that includes: a male connector and a female connector; one end of the male connector is a plug, and the other end of the male connector is a wiring part; one end of the female joint is a slot, and the other end of the female joint is a wiring part; the plug is cylindrical, a clamping head is fixedly connected to the side surface of the plug, and the clamping head is cuboid and inclined towards the direction of the male connector wiring part; the shape of the slot is matched with that of the plug, the slot is a cylindrical groove, a semicircular groove is radially arranged on the inner wall of the cylindrical groove and can accommodate a chuck to pass through, a guide groove is circumferentially arranged on the inner wall of the cylindrical groove, the guide groove is an eccentric groove, the depth of the guide groove becomes shallow gradually, and the chuck is screwed into the guide groove until being clamped; the wiring portion is a hollow round hole, and a wire pressing threaded hole communicated with the hollow round hole is formed in the outer side of the wiring portion.

2. The 0.4kV low voltage cable intermediate joint connection device of claim 1, wherein the male joint and the female joint are hexagonal prisms.

3. The 0.4kV low-voltage cable intermediate joint connecting device as claimed in claim 1, wherein a fastening threaded hole communicated with the cylindrical groove is formed in the outer wall of the slot, and a limiting hole is formed in a position corresponding to the plug.

4. The 0.4kV low-voltage cable intermediate joint connecting device as claimed in claim 1, wherein the guide groove is divided into two sections, the front half section is a guide groove with equal depth, the depth of the guide groove of the rear half section is gradually reduced and is smaller than that of the guide groove of the front half section, and the penetrating position of the fastening threaded hole is arranged in the guide groove of the front half section.

5. The 0.4kV low-voltage cable intermediate joint connecting device according to claim 1, wherein a portion of the male joint where the plug and the socket of the female joint contact is coated with a silicone layer.

6. The 0.4kV low-voltage cable intermediate joint connecting device as claimed in claim 1, wherein an insulating sheath is arranged outside the male joint and the female joint, the front ends of the two insulating sheaths can be buckled, and the rear ends of the two insulating sheaths wrap the outer side of the cable.

7. The 0.4kV low-voltage cable intermediate joint connecting device according to claim 1, wherein the insulating sheath is provided with anti-slip stripes.

8. The 0.4kV low-voltage cable intermediate joint connecting device according to claim 1, wherein the number of the wire pressing threaded holes of the wire connecting portion is 2.