KR102414670B1 - Underground distribution cable connector with improved safety - Google Patents

Abstract

The present invention relates to an underground distribution cable connector with improved safety. The underground distribution cable connector of the present invention comprises: a bracket (100); a case (200); first and second conductors (300A, 300B); a plate spring (400); a connector (500); first and second coil springs (600A, 600B); first and second push button switches (700A, 700B); first and second indicating lamps (800A, 800B); and a battery (900). According to the present invention, the replacement costs due to disconnection can be reduced.

Description

Underground distribution cable connector with improved safety

The present invention relates to an underground distribution line connector with improved safety.

In general, a distribution line is a cable installed to distribute electricity to each place of use, and may be installed on the ground or underground.

In this way, underground distribution lines buried underground are connected with connectors at preset distances for easy construction. As a connector for connecting such distribution lines, there is Republic of Korea Patent Registration No. 10-1083416 “underground distribution line protection insulation connector”. , Here, the work is very convenient because the underground distribution line inserted through both ends of the case can be easily and easily connected and disconnected. A connector capable of blocking the infiltration of infiltration water from the outside is disclosed in detail, as well as sealing the underground distribution line by airtightly wrapping and fixing it through a second elastic body.

However, in the prior art, the conductor is firmly connected by a conductor connector, so when an external force such as an earthquake, construction equipment, or soil collapse acts on the underground distribution line, the cost of replacing the underground distribution line increases as the underground distribution line is disconnected. In order to replace the distribution line, there was a hassle such as having to excavate and reconstruct the buried part.

In particular, when the underground distribution line is separated by an external force, there is a serious problem in that a safety accident such as an electric shock accident occurs as the conductor (metal wire) of the underground distribution line is exposed to the outside.

1. Republic of Korea Patent No. 10-1083416 2. Republic of Korea Patent No. 10-1818237

The present invention was devised to solve the above problems, and when a strong external force is applied to an electrically interconnected underground distribution line, the connected part is separated rather than broken, thereby reducing replacement cost due to subsequent disconnection, and of the underground distribution line The risk of safety accidents such as electric shock can be minimized by preventing the metal wire from being exposed to the outside when disconnected. It aims to provide an underground distribution cable connector with improved safety that can be improved.

The present invention for achieving the above object,

a bracket comprising a plate-shaped pedestal, a leg supporting and supporting the pedestal, and a guide angle extending upward from the upper edge of the pedestal;

The first and second bodies in a rectangular parallelepiped shape that are buttted to each other and detachably coupled to each other via a set screw, inserted along the guide angle of the bracket and placed on the pedestal, and the first and second bodies in the horizontal direction A guide path consisting of a seating groove provided at one end of a straight groove formed to be opposite to each other based on the formed straight groove and inclined upward from one end to the other end, and a first and second underground distribution line A conductive guide portion formed on the butt surface of the first and second bodies to be introduced through both ends of the first and second bodies and arranged in parallel with the straight groove, and the conductive guide portion to communicate with the conductive guide portion a case comprising a spring guide unit formed therein, a guide path and an upper end communicating with each other, and a pin guide unit communicating with a conductive guide unit at the other end;

The first insertion hole is movably accommodated in the conductor guide part and through which the metal wire of the first underground distribution line introduced into the conductive guide part through one end of the case is inserted and fixed; a first conductor comprising a first butt plate having a pinhole;

The second inlet is movably accommodated in the conductor guide and the metal wire of the second underground distribution line introduced into the conductor guide through the other end of the case is inserted and fixed; a second conductor disposed on the lower surface of the first butt plate and comprising a second butt plate having a second pinhole communicating with the first pinhole of the first conductor;

a leaf spring having a third pinhole communicating with the first and second pinholes and being movably disposed in the spring guide part to elastically support the overlapping first and second conductors upward;

A T-shaped pin consisting of a horizontal part where both ends are movably fitted into the guide path, a vertical part that extends downward from the horizontal part and is removably fitted into the first, second, and third pinholes communicated with each other, and the horizontal part is rotatable at both ends A connector comprising: a wheel installed to perform rolling motion along a guide path; and a pressing plate extending from the outer circumferential surface of the vertical part to press the first butt plate and the second butt plate to be in close contact with each other;

a first coil spring accommodated in the conductor guide and surrounding the outer circumferential surface of the first underground distribution line, one end fixed to the first conductor and the other end fixed to the case to elastically support the first conductor toward the second conductor;

a second coil spring accommodated in the conductor guide and surrounding the outer circumferential surface of the second underground distribution line, one end fixed to the second conductor and the other end fixed to the case to elastically support the second conductor toward the first conductor;

first and second push button switches installed at both ends of the guideway and pressed by wheels to connect power;

a first indicator installed on the outer surface of the case, electrically connected to the first push button switch, and operated by the first push button switch to emit light;

a second indicator light installed on the outer surface of the case, electrically connected to the second push button switch, and operated by the second push button switch to emit light;

and a battery for supplying power to the first and second indicator lights.

According to the present invention, when an external force (tensile force) is applied to the electrically interconnected first and second underground distribution lines, the connection part is separated, thereby reducing replacement cost due to disconnection.

In addition, since the metal wire is not exposed to the outside when the first and second underground distribution lines are disconnected, the occurrence of safety accidents such as electric shock can be minimized.

Finally, there is an advantage in that the operator can easily predict the direction in which the external force (tensile force) acts only with the lighting state without disassembling the case, so that maintenance can be performed quickly.

1 is a combined perspective view of an underground distribution line connecting connector with improved safety according to the present invention.
2 is an exploded perspective view of an underground distribution line connecting connector with improved safety according to the present invention;
3 is an exploded perspective view of the rest of the configuration except for the bracket in the underground distribution line connection connector with improved safety according to the present invention.
Figure 4 is a cross-sectional view of the coupling of Figure 3;
5 is a front view of a state in which the second body is removed from the underground distribution line connection connector with improved safety according to the present invention.
6A and 6B are views for explaining the operation of the underground distribution line connector with improved safety according to the present invention.

Hereinafter, it will be described in detail based on the accompanying drawings.

1 is a combined perspective view of the underground distribution line connection connector with improved safety according to the present invention, FIG. 2 is an exploded perspective view of the underground distribution line connection connector with improved safety according to the present invention, and FIG. 3 is an underground distribution line with improved safety according to the present invention It is an exploded perspective view of the rest of the configuration except for the bracket in the connection connector, FIG. 4 is a cross-sectional view of FIG. 3 , and FIG. 5 is a front view of a state in which the second body is removed from the underground distribution line connection connector with improved safety according to the present invention.

1 to 5, the underground distribution line connection connector according to the present invention includes a bracket 100 and a case 200, first and second conductors 300A and 300B, a leaf spring 400, a connector 500, As composed of the first and second coil springs 600A and 600B, the first and second push button switches 700A and 700B, the first and second indicator lights 800A and 800B and the battery 900, according to this, they are electrically mutually When a strong external force is applied to the connected underground distribution line, the connected part is separated rather than broken, thereby reducing replacement costs due to disconnection in the future. It has a technical feature that can minimize the cost of maintenance and greatly improve the convenience of quick maintenance and work as it can be easily checked from the outside by looking at the lighting status when the underground distribution line is disconnected.

The bracket 100 is composed of a pedestal 110, a leg 120, and a guide angle 130. In this embodiment, the bracket 100 is fixed to the floor of a manhole or an electric power sphere and serves to fix the case 200 so as not to move from side to side. do

The pedestal 110 is a plate having a predetermined width and thickness. On the lower surface of the pedestal 110, the legs 120 extending downward in parallel are integrally formed to support the pedestal 110, and the leg 120 is a manhole or electric power through a fixing means (eg, anchor bolt). fixed to the bottom of the sphere. And in the corner portion of the upper surface of the pedestal 110, when viewed in a plan view, guide angle 130 having a 'L' shape extends upward in parallel, where the case 200 placed on the pedestal 110 is provided. It guides up and down while fixing it so that it does not move from side to side.

The case 200 is a member of an insulating material consisting of first and second bodies 210A and 210B, a guide path 220 , a conductor guide part 230 , a spring guide part 240 , and a pin guide part 250 . , is detachably fixed to the bracket 100 in the case of this embodiment and provides a space in which each member can be installed.

The first and second bodies 210A and 210B are external, and have a rectangular parallelepiped shape. These first and second bodies (210A, 210B) are coupled to each other via a fixing screw (B) in a state facing each other. And on the surfaces facing each other of the first and second bodies 210A and 210B, the guide path 220, the conductive guide part 230, the spring guide part 240 and the pin guide part 250 are integrally formed, respectively. do.

The guide path 220 includes a straight groove 221 , an inclined groove 222 , and a seating groove 223 . Here, the straight groove 221 is provided in the middle of the first and second bodies 210A and 210B, and is formed in the longitudinal direction of the first and second bodies 210A and 210B. And inclined grooves 222 inclined upward from one end to the other end are integrally formed at both ends of the straight groove 221 . And a seating groove 223 is provided at one end of the two inclined grooves 222 .

On the other hand, as shown in FIG. 5 , the lengths of the left and right inclined grooves 222 are different from each other, which is the position where the connector 500 falls out from the first conductor 300A and the second conductor 300B overlapping each other. It was made taking into account. That is, since the connector 500 is first separated from the second conductor 300B disposed below the first conductor 300A, and then separated from the first conductor 300A, the right inclined portion 222 is on the left. It is manufactured to have a relatively short length compared to the inclined portion 222 .

The conductive guide 230 is formed on the first and second bodies 210A and 210B to be disposed under the guide path 220 . The conductor guide 230 is formed to penetrate in the longitudinal direction of the first and second bodies 210A and 210B, and the metal wire La through both ends of the conductor guide 230 is covered by the covering Lb. · Two underground distribution lines (L1, L2) are drawn in, respectively, and are electrically interconnected via the first and second conductors (300A, 300B).

The spring guide part 240 is formed on the first and second bodies 210A and 210B to be disposed under the conductor guide 230 , and the upper end thereof is formed to communicate with the lower end of the conductor guide 230 .

The pin guide unit 250 is formed on the first and second bodies 210A and 210B to be disposed between the guide path 220 and the conductive guide 230, the upper end communicates with the guide path 220 and the lower end The silver is formed to communicate with the conductor guide 230 .

The first and second conductors 300A and 300B are accommodated in the conductor guide unit 230 to face each other, and are movable along the conductor guide unit 230, the first underground distribution line L1 and the second underground distribution line. It serves to electrically interconnect (L2).

The first conductor 300A includes a first insertion hole 310 and a first butt plate 320 . The first insertion hole 310 is a cylinder with one end blocked and the other end open, and the metal wire La of the first underground distribution line L1 is inserted through the open end and fixed by a conventional method (compression bonding, soldering, etc.). . And the first butt plate 320 from the other end blocked from the first insertion hole 310 extends horizontally toward the second conductor (300B). In addition, the first pinhole 321 penetrating up and down is integrally formed in the first butt plate 320 .

The second conductor 300B includes a second insertion hole 330 and a second butt plate 340 . The second insertion port 330 is a cylinder with one end blocked and the other end open, and the metal wire La of the second underground distribution line L2 is inserted through the open end and fixed by a conventional method (compression, soldering, etc.). . And the second butt plate 340 from the other end blocked from the second insertion hole 330 extends horizontally toward the first conductor (300A). In addition, the second pinhole 341 penetrating vertically is integrally formed on the second butt plate 340 .

Here, when the first conductor 300A and the second conductor 300B are brought into close contact with each other, the upper surface of the second butt substrate 340 is disposed as the lower surface of the first butt substrate 320 and the first butt substrate 320 ) of the first pinhole 321 and the second pinhole 341 of the second butt plate 340 communicate with each other naturally.

The leaf spring 400 is an elastic body, and in the present embodiment, it is movably disposed on the spring guide part 240 to elastically support the overlapping first and second conductors 300A and 300B upward. And in the middle of the leaf spring 400, the first and second pinholes 321 and 341 and the third pinhole 410 that communicates with each other is integrally formed.

For example, when the leaf spring 400 is disposed on the lower surface of the overlapping first and second conductors 300A and 300B, the first butt substrate of the first conductor 300A is generated by the elastic force of the leaf spring 400 . 320 and the second butt plate 340 of the second conductor 300B are closely adhered to each other while being supported.

The connector 500 is composed of a T-type pin 510 , a wheel 520 , and a pressing plate 530 , and in this embodiment, is installed to be movable along the guide path 220 of the case 200 , and the first and second It serves to maintain or release the connection state between the conductors 300A and 300B and the leaf spring 400 .

The T-shaped pin 510 includes a horizontal portion 511 and a vertical portion 512 . Both ends of the horizontal part 511 are movably fitted in the guide path 220 , and the vertical part 512 extends downward from the horizontal part 511 and moves along the pin guide part 250 . In addition, the vertical portion 512 is removably inserted into the first, second, and third pinholes 321, 341 and 410 so that the first and second conductors 300A and 300B and the leaf spring 400 form an integrated structure.

The wheel 520 is installed to be able to rotate in place (idling) at both ends of the horizontal part 511 , is accommodated in the guide path 220 , and rolls along the guide path 220 .

The pressing plate 530 extends from the outer circumferential surface of the vertical part 512 in a disk shape and serves to press the first butt plate 320 and the second butt plate 340 to be in close contact with each other.

The first and second coil springs 600A and 600B are elastic bodies, and in this embodiment, are accommodated in the case 200 to face each other to elastically support the first conductor 300A and the second conductor 300B in one direction. plays a role

As an example, the first coil spring 600A has one end fixed to the case 200 and the other end fixed to the first conductor 300A so that the first conductor 300A is fired toward the second conductor 300B. plays a supporting role.

The second coil spring 600B has one end fixed to the case 200 and the other end fixed to the second conductor 300B to elastically support the second conductor 300B toward the first conductor 300A. do.

And the first underground distribution line (L1) is surrounded by a first coil spring (600A), the outer peripheral surface of the second underground distribution line (L2) is surrounded by the second coil spring (600B).

The first and second push button switches 700A and 700B are conventional switches for cutting or connecting a circuit by pressing a button. In this embodiment, they are installed to be exposed at both ends of the guideway 220, respectively, and the wheels 520 It is pressed by and serves to connect the power.

The first and second indicator lights 800A and 800B are conventional light emitting diodes (LEDs) that are lit by receiving power. , It serves to indicate the direction in which an external force (tensile force) acts in case of disconnection.

For example, the first indicator light 800A is electrically connected to the first push button switch 700A. At this time, when the wheel 520 presses the first push button switch 700A, the circuit that was cut inside the first push button switch 700A is connected and the power of the battery 900 is turned on by the first push button switch 700A. 700A) and is supplied to the first indicator 800A, whereby the first indicator 800A is turned on.

And the second indicator light 800B is electrically connected to the second push button switch 700B. At this time, when the wheel 520 presses the second push button switch 700B, the circuit that has been cut is connected to the inside of the second push button switch 700B, and the power of the battery 900 is turned on to the second push button switch 700B ( 700B) and supplied to the second indicator 800B, whereby the second indicator 800B is turned on.

Accordingly, the operator can quickly perform maintenance in that the direction in which the external force (tensile force) acts can be easily predicted only in the lighting state without disassembling the case 200 .

The battery 900 is a general power supply means, and in this embodiment serves to supply power to the first indicator 800A and the second indicator 800B.

6A and 6B are diagrams for explaining the operation of the underground distribution line connection connector with improved safety according to the present invention, which will be described with reference to the following.

As shown in Fig. 6a, in a state in which the first and second conductors 300A and 300B and the leaf spring 400 are integrally connected via the connector 500, an external force (tensile force) is applied to the first underground distribution line L1. When acting, the first and second conductors 300A and 300B, the leaf spring 400 and the connector 500 move together in the direction in which the external force acts.

At this time, the first coil spring 600A is compressed by the moving first conductor 300A, and the second coil spring 600B is tensioned by the moving second conductor 300B.

And in the process in which the wheel 520 of the connector 500 moves along the left inclined groove 222 through the straight groove 221 of the guideway 220, the vertical part 512 of the connector 500 is a leaf spring. As the third pinhole 410 of 400 and the second pinhole 341 of the second conductor 300B are sequentially drawn out, the electrical connection state of the first conductor 300A and the second conductor 300B is naturally It is broken, and at this time, the second conductor 300B is returned to its initial state by the restoring force of the tensioned second coil spring 600B.

Meanwhile, while the connector 500 moves together with the first conductor 300A, the wheel 520 enters the seating groove 223 to press the first push button switch 700A, and accordingly, the first The inside of the push button switch 700A is connected to the cut circuit, the power of the battery 900 is supplied to the first indicator light 800A through the first push button switch 700A, and the first The indicator 800A is lit.

A case in which an external force (tensile force) acts on the second underground distribution line L2 will be described as follows.

As shown in Figure 6b, in the state in which the first and second conductors 300A and 300B and the leaf spring 400 are integrally connected via the connector 500, an external force (tensile force) is applied to the second underground distribution line L2. When acting, the first and second conductors 300A and 300B, the leaf spring 400 and the connector 500 move together in the direction in which the external force acts.

At this time, the first coil spring 600A is tensioned by the moving first conductor 300A, and the second coil spring 600B is compressed by the moving second conductor 300B.

And in the process in which the wheel 520 of the connector 500 moves along the right inclined groove 222 through the straight groove 221 of the guideway 220, the vertical part 512 of the connector 500 is a leaf spring. As the third pinhole 410 of 400 and the second pinhole 341 of the second conductor 300B are sequentially drawn out, the electrical connection state of the first conductor 300A and the second conductor 300B is naturally It is broken, and at this time, the first conductor 300A is returned to its initial state by the restoring force of the first coil spring 600A that was tensioned.

In addition, the connector 500 presses the second push button switch 700B while the wheel 520 moves along the right inclined groove 222, and accordingly, the inside of the second push button switch 700B. As the circuit that has been cut is connected, the power of the battery 900 is supplied to the second indicator 800B through the second push button switch 700B, and the second indicator lamp 800B supplied with power is turned on. .

And the connector 500 is moved along the right inclined groove 222 to return to the initial state.

The present invention can reduce the replacement cost due to disconnection by allowing the connection part to be separated when an external force (tensile force) is applied to the first and second underground distribution lines L1 and L2 electrically interconnected.

In addition, since the metal wire La is not exposed to the outside when the first and second underground distribution lines L1 and L2 are disconnected, the occurrence of safety accidents such as electric shock can be minimized.

Finally, there is an advantage that the operator can quickly perform maintenance in that the direction in which the external force (tensile force) acts can be easily predicted only by the lighting state without disassembling the case 200 .

Although the present invention has been described in detail only with respect to the specific embodiments described, it is natural for those skilled in the art that various changes and modifications can be made within the technical spirit of the present invention, and it is natural that such variations and modifications belong to the appended claims.

100: bracket 110: pedestal 120: leg
130: guide angle 200: case 210A, 210B: first and second body
220: guide road 221: straight groove 222: inclined groove
223: seating groove 230: conductive guide portion 240: spring guide portion
250: pin guide unit 300A: first conductor 310: first insertion hole
320: first butt substrate 321: first pinhole 300B: second conductor
330: second insertion hole 340: second butt plate 341: second pinhole
400: leaf spring 410: third pin hole 500: connector
510: T-shaped pin 511: horizontal portion 512: vertical portion
520: wheel 530: press plate
600A, 600B: 1st and 2nd coil spring 700A, 700B: 1st and 2nd push button switch
800A, 800B: 1st and 2nd indicator lights 900: Battery
L1, L2: 1st and 2nd underground distribution lines

Claims (1)

Bracket 100 consisting of a plate-shaped pedestal 110, a leg 120 supporting and supporting the pedestal 110, and a guide angle 130 extending upward from the upper edge of the pedestal 110;
The first and second bodies (210A, 210B) having a rectangular parallelepiped shape are buttted to each other and detachably coupled to each other via a fixing screw (B), inserted along the guide angle 130 of the bracket 100 and placed on the pedestal 110 ) and a straight groove 221 formed in the horizontal direction on the facing surfaces of the first and second bodies 210A and 210B, and formed to face each other based on the straight groove 221, and inclined upward from one end to the other end. is a guide path 220 comprising a seating groove 223 provided at an end of any one of the inclined groove 222 and the inclined groove 222, and the first and second underground distribution lines L1 and L2 are the first and second Conductive guide portion 230 formed on the abutting surface of the first and second bodies 210A and 210B to be introduced through both ends of the body 210A and 210B and arranged in parallel with the straight groove 221; The spring guide part 240 formed along the conductive guide part 230 to communicate with the conductive guide part 230, the guide path 220 and the upper end communicate with each other, and the conductive guide part 230 and the other end communicate with each other. Case 200 consisting of a pin guide unit 250;
The first insertion hole 310 is movably accommodated in the conductive guide part 230 and into which the metal wire La of the first underground distribution line L1 introduced into the conductive guide part 230 through one end of the case 200 is inserted and fixed. ) and a first conductor (300A) comprising a first butt plate (320) extending from the first insertion hole (310) along the conductor guide part (230) and having a first pinhole (321) penetrating vertically (300A);
The second insertion hole 330 is movably accommodated in the conductive guide part 230 and into which the metal wire La of the second underground distribution line L2 introduced into the conductive guide part 230 through the other end of the case 200 is inserted and fixed. ) and extending from the second insertion hole 330 toward the first conductor 300A and disposed on the lower surface of the first butt substrate 320 of the first conductor 300A, the first pinhole 321 of the first conductor 300A ) and a second conductor (300B) composed of a second butt plate (340) having a second pinhole (341) communicating with each other;
Having a third pinhole 410 that communicates with the first and second pinholes 321 and 341, the first and second conductors 300A and 300B that are movably disposed on the spring guide unit 240 are elastically supported upwards leaf spring 400;
A horizontal portion 511 having both ends movably fitted to the guide path 220, a vertical portion extending downward from the horizontal portion 511 and removably inserted into the first, second, and third pinholes 321, 341, 410 that are in communication with each other From the outer peripheral surface of the T-shaped pin 510 made of the part 512, the wheel 520 which is rotatably installed at both ends of the horizontal part 511 and moves along the guide path 220, and the vertical part 512 a connector 500 composed of a pressing plate 530 that is expanded and presses the first butt plate 320 and the second butt plate 340 to be in close contact with each other;
It is accommodated in the conductor guide part 230 and wraps around the outer circumferential surface of the first underground distribution line (L1), one end is fixed to the first conductor (300A) and the other end is fixed to the case (200) to remove the first conductor (300A). A first coil spring (600A) for elastically supporting the second conductor (300B);
It is accommodated in the conductor guide part 230 and wraps around the outer peripheral surface of the second underground distribution line (L2), one end is fixed to the second conductor (300B) and the other end is fixed to the case (200) to remove the second conductor (300B). a second coil spring (600B) for elastically supporting the first conductor (300A);
First and second push button switches 700A and 700B respectively installed at both ends of the guide path 220 and pressed by the wheels 520 to connect power;
a first indicator light (800A) installed on the outer surface of the case (200), electrically connected to the first push button switch (700A), and operated by the first push button switch (700A) to emit light;
a second indicator light 800B installed on the outer surface of the case 200, electrically connected to the second push button switch 700B, and operated by the second push button switch 700B to emit light;
A battery 900 for supplying power to the first and second indicator lights (800A, 800B); an improved safety underground distribution line connector comprising a.

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