KR100859597B1 - Adapter for underground distribution line and distribution box - Google Patents

Abstract

An adapter for an underground distribution line and a ground distribution box is provided to prevent power failure due to abrupt power by releasing the underground distribution line from the ground distribution box only by pushing a knob member up. An adapter for an underground distribution line and a ground distribution box includes a case(100), a connector terminal(200), and an underground distribution line connection member(300). The case includes a guide groove, a receiving groove, and an underground distribution line insertion unit. The underground distribution line connection member includes a first member(330), a moving block(340), a spring(350), a knob member(360), at least two clamps(370), and a snap ring(380). The first member includes a connector terminal connection unit and a spring connection unit. The moving block is inserted into a second passage through the spring to reciprocate vertically and is made of conductive material. The spring is made of conductive material and elastically supports the moving block to be moved to the spring connection unit in one direction. The knob member includes an underground distribution line insertion hole and is fixed to the moving block through the medium of a guide bar moving along the guide groove. At least two clamps are positioned to face each other by including first and second slant surfaces. The snap ring elastically supports the clamps to widen a space between the clamps.

Description

Adapter for Underground Distribution Line and Distribution Box

The present invention relates to an air conduction adapter, and more particularly, to an air conduction adapter of a buried underground cable and an earth distribution box for electrically connecting or detaching an underground cable to a ground distribution box.

As is well known, the energizing air adapter is for connecting or detaching the underground wires buried in the ground in the ground distribution box installed on the ground. As shown in FIG. 1, the conventional energizing air adapter is penetrated in the horizontal direction. A case 100 made of an insulating material having a first passage 110 and a second passage 120 which communicates with the first passage 110 in a vertical direction and is opened to the outside; A connector terminal 200 made of a conductor material rotatably installed in the first passage 110 of the case 100 and detachably screwed to the bushing terminal b1 of the ground distribution box B; It is installed in the second passage 120 of the case 100, and consists of an underground wire connecting member 300 of a conductor material electrically connecting the underground wire (W) and the connector terminal 200.

Here, the underground wire (W) is a power cable having a variety of standards, it is a cover (w2) to wrap the outer surface of the conductive wire (w1) and the conductive wire (w1) through which the current flows with an insulating material to prevent leakage of current to the outside Is done.

In addition, the case 100 is formed of an insulating material such as synthetic resin or synthetic rubber, and the first passage 110 and the second passage 120 are formed inside the core to cross each other, and generally have a 'T' shape. Has One end of the first passage 110 is coupled to the bushing b of the ground distribution box B, and the other end thereof is detachably installed with a cap 400 made of an insulating material.

In addition, the connector terminal 200 is a conductor and is rotatably installed in the first passage 110 of the case 100 to be screwed so as to energize the bushing terminal b1 of the ground distribution box B.

In addition, the underground wire connecting member 300 is formed of a conductor, the underground wire fixing section 320 and the underground wire fixing section 320 is formed of a cylindrical shape to insert and fix the underground wire (W) therein; The connector terminal 200 is inserted into the upper end of the connector terminal connecting portion 310 having a connector terminal through hole 311 is energized is installed in the second passage 120 of the case (100). Here, the underground wires W are inserted into the underground wire fixing unit 320 and are compressed and fixed.

However, since the underground wires W have various standards as described above, each time the underground wires having different specifications are connected to the underground wire connection member 300, only the dedicated underground wire fixing unit 310 should be used. There is. In other words, whenever the specifications of the underground wire (W) is different, it is necessary to connect to the dedicated underground wire connection member 300 corresponding to this, there was a problem that various underground wire connection member 300 is required. Therefore, there was a inconvenience to carry the underground wire connection member 300 of various standards every time work.

The present invention has been made to solve the above problems, regardless of the specifications of the underground wire, underground underground wire and ground distribution box that can directly connect a variety of underground wires to the air supply adapter using a single underground wire connection member Its purpose is to provide an energized air adapter.

The present invention for solving the above problems, the case of the insulating material having a first passage penetrating in the horizontal direction, and a second passage communicating with the first passage perpendicular to the first passage; A connector terminal of a conductor material rotatably installed in the first passage of the case and detachably threaded to the bushing terminal of the ground distribution box; In the case of a buried underground cable having a ground wire connection member made of a conductor material electrically connected to the ground wire and the connector terminal, the case is provided in the second passage of the case. Guide grooves are formed in the longitudinal direction so as to communicate with each other, formed in the lower side of the guide groove, the seating groove which is enlarged to the outside diameter toward the lower side, is formed on the lower side of the seating groove is further provided with an underground wire insertion portion is inserted into the underground wire, The wire connecting member includes: a first terminal having a connector terminal connecting portion having a connector terminal through hole through which the connector terminal is inserted and electrically connected, and a spring connecting portion formed at a lower end of the connector terminal connecting portion and fixed to the second passage; It has a seating groove which is enlarged in diameter toward the outside toward the bottom, and is inserted into the second passage by the spring so as to be movable up and down in a second passage and a moving block made of a conductor material; A spring made of a conductor material which supports the movable block to be elastically supported in one direction to the spring connection part of the first member; A handle member fixed to the moving block through a guide bar moving along the guide groove, the underground wire inserting opening being formed in communication with the second passage in a tubular shape fixedly movable in the longitudinal direction while surrounding the case; A conductor insertion groove is formed on the inner surface, and the diameter is expanded outwardly toward the outer surface to decrease the diameter from the first inclined surface downward toward the seating groove of the moving block, and the diameter decreases outward from the first slope to the downwardly. At least two clamps disposed opposite to each other with a second inclined surface facing the; The structure further includes a snap ring for elastically supporting the clamps disposed opposite to each other.

The present invention has the structure as described above, it is possible to easily connect a variety of underground wires to the ground distribution box through the energizing air adapter without replacing the underground wire connection member, the effect that the work is expected to be expected.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 2 to 4.

Figure 2 is a stage cut-out of the buried underground cable and the air distribution adapter of the ground distribution box according to the present invention, Figure 3 is an enlarged cross-sectional view of a portion of the electricity supply adapter of Figure 2, Figure 4 is a ground wire connection portion according to the present invention Exploded perspective view.

According to this, the energizing air adapter according to the present invention, the insulating material having a first passage 110 penetrated in the horizontal direction, and the second passage 120 which is in communication with the first passage 110 to be vertically open to the outside The case 100; A connector terminal 200 made of a conductor material rotatably installed in the first passage 110 of the case 100 and detachably screwed to the bushing terminal b1 of the ground distribution box B; Installed in the second passage 120 of the case 100, the underground wire connecting member 300 of the conductor material for electrically connecting the underground wire (W) and the connector terminal 200 is the same as in the prior art.

However, the case 100 of the energizing air adapter according to the present invention is formed in the lower side of the guide groove 121, the guide groove 121 is formed in the longitudinal direction so as to communicate with the second passage 120, the outer side toward the lower side It is further provided with a ground wire insertion portion 123 is formed in the lower side of the seating groove 122, the seating groove 122 is enlarged in diameter to insert the underground wire (W). Here, the guide groove 121 is formed in pairs in the corresponding direction. And, in the present embodiment, the guide groove 121 is formed so that two are arranged in a straight line.

On the other hand, since the structure of the connector terminal 200 is not different from the conventional description thereof will be omitted.

However, the underground wire connecting member 300 of the energizing air adapter according to the present invention, the connector terminal connecting portion 331 and the connector terminal connecting portion 331 having a connector terminal through hole 331a connected to the connector terminal 200. A first member 330 having a spring connection portion 332 formed at a lower end of the first member 330; A movement block 340 having a seating groove 341 to be movable up and down in the second passage 120; A spring 350 that supports the moving block 340 to the spring connection portion 332 in a shot; A tubular underground wire insertion hole 361 is formed while surrounding the case 100, and a handle member 360 fixed to the moving block 340 through the guide bar 362; The wire insertion groove 343 is formed on the inner surface, and has a first inclined surface 371 formed on the outer surface and a second inclined surface 372 formed below the first inclined surface 371 and at least disposed to face each other. Two or more clamps 370; A snap ring 380 is further included to support the clamps 370 opposed to each other so as to be spaced apart from each other (FIG. 3).

3 and 4, the first member 330 is formed of a conductor and is fixedly installed in the first passage 110 of the case 100 to be connected to the connector terminal 200. The connector terminal connecting portion 331, and formed on the lower end of the connector terminal connecting portion 331 is made of a spring connecting portion 332 is fixed to the upper portion of the second passage 120 in the transverse direction. In this case, a connector terminal through hole 331a is formed in the connector terminal connecting part 331, and the connector terminal 200 passes through the connector terminal through hole 331a and is screwed to the bushing terminal b1. In addition, the connector terminal connecting portion 331 is disposed and fixed at a position where the first passage 110 and the second passage 120 intersect so as not to fall downward due to the load of the underground wire W or the like. In addition, the spring connection part 332 has a cylindrical shape having a diameter corresponding to the second passage 120, and various coupling schemes such as fitting to the second passage 120 are applied and fixed.

In addition, the movable block 340 is formed of a conductor, and has a seating groove 341 which is enlarged in diameter toward the outside toward the lower side, and is movable up and down in the second passage 120 by the spring 350. Is fitted. At this time, the seating groove 341 is formed to be symmetrical with the seating groove 122 formed in the case (100).

  In addition, the spring 350 is provided as a tension spring between the spring connection part 332 and the moving block 340 to move the moving block 340 to the spring connection part 332 of the first member 330 in one direction. Supports the bullet to be movable. At this time, the spring 350 is formed of a conductor, and also serves to electrically connect the first member 330 and the moving block 340.

In addition, the handle member 360 is a part which is directly manipulated by a person, and is formed of an insulator. In addition, the handle member 360 is formed with a underground wire insertion hole 361 which opens and communicates with the second passageway 120 in a tubular shape which is fixedly movable in the longitudinal direction while surrounding the case 100. The guide bar 362 moving along the guide groove 121 is fixed to the moving block 340. At this time, the guide bar 362 and the moving block 340 may also be applied in various ways such as a conventional fitting (not shown).

In addition, the clamp 370 is a first inclined surface (3) is formed on the inner surface of the first inclined surface (3) is formed on the inner surface, the outer diameter is extended toward the outside toward the mounting groove (341) of the moving block 340 371 and at least two of which are disposed to face each other with a second inclined surface 372 facing the seating groove 122 of the case 100 by reducing the diameter toward the lower side from the first inclined surface 371. Consists of the above conductor material. In this case, the first inclined surface 371 is formed to correspond to the seating grooves 341 and 122 while the angles of the second inclined surface 372 are symmetric with each other. Thus, the first inclined surface 371 is seated in the seating groove 341 of the moving block 340, the second inclined surface 372 is seated in the seating groove 122 of the case 100. In addition, the clamp 370 is inserted into the lead insertion groove (373) of the arc shape in contact with each other in a circular shape is inserted, the wire insertion groove 373, the clamp 370 is tightened The smaller the diameter into which the conductive wire w1 can be inserted. In addition, a snap ring insertion groove 374 is formed on the surface of the clamp 370 in which the wire insertion groove 373 is formed so that the snap ring 380 is installed and is not separated. Two clamps 370 according to the present embodiment are paired, but the number can be variously changed within the scope of the claims.

The snap ring 380 is elastically supported so that the clamps 370 disposed opposite to each other are opened apart from each other. At this time, the snap ring 380 is installed in the tensioned state as much as possible, and if a force does not act from the outside, the diameter of the wire (w1) made of the wire insertion groove (373) is expanded to the maximum. In other words, when the handle member 360 is moved upward, the moving block 340 is also moved upward while pressing the spring 350 in conjunction with this. Therefore, the clamp 370 is moved upward and at the same time the snap ring 380 is pushed through the mounting grooves 341 and 122 abutting the first and second inclined surfaces 371 and 372 of the clamp 370, so that the clamp 370 is opened and the diameter is increased.

Referring to Figures 2, 5, 6 and 7, the operation of the buried underground cable and the ground air distribution box of the ground distribution box configured as described above will be described in detail.

When the air supply adapter according to the present invention is first installed in the bushing (b) of the above ground distribution box (B), in the state in which the underground wire (W) is not connected, the connector terminal 200 is screwed on the bushing terminal (b1). Fix the energizing air adapter. At this time, the spring 350 of the underground wire connection member 300 is installed to be as tensioned as possible, the connector terminal 200 in the state that the clamp 370 is engaged with the first member 330 and the movable block 340 as much as possible. It is in a fixed state (Fig. 2).

When the underground wire (W) is to be connected to the energizing air adapter according to the present invention, when the handle member 360 is pushed upward and pushed upward, the movable block 340 is also moved upward, and the spring 350 contracts. do. Therefore, the force pushed through the seating grooves 122 and 341 in contact with the first and second inclined surfaces 371 and 372 of the clamp 370 becomes smaller than the force to which the snap ring 380 extends, so that the contracted snap ring 380 expands. Therefore, the clamp 370 is opened (FIG. 5).

At this time, the conductive wire w1 of the underground wire W is inserted into the conductive wire insertion groove 373 of the gap clamp 370 (FIG. 6).

When the user presses the handle member 360 to stop the pressure, the spring 350 that is pressed and contracted is elastically tensioned, and thus the movable block 340 and the handle member 360 are simultaneously moved downward. On the other hand, while the moving block 340 is moved downward, the force that is pressed through the mounting groove (122,341) in contact with the first and second inclined surfaces (371,372) of the clamp 370 is greater than the force to expand the snap ring (380). As the snap ring 380 contracts, the clamp 370 is tightened. Therefore, since the clamp 370 tightens the conductive wire w1, the underground wire W is fixed by the underground wire connection member 300 (FIG. 7).

The built-in underground adapter of the buried underground wire and ground distribution box according to the present invention is configured as described above, when moving the handle member 360 upwards, so that the clamp 370 is opened so that the conductor (w1) can be easily inserted When the pressure is stopped by removing the hand from the handle member 360, the clamp 370 is tightened to fix the conductive wire w1 in the form of the clamp 370, and thus, regardless of the size of the underground wire W, There is an advantage that can be applied to the underground wire (W).

In addition, when the buried underground wire and the air distribution adapter of the ground distribution box according to the present invention, by pressing the handle member 360 upwards, the clamp 370 is opened, the pressure to the handle member 360 is stopped. Since the clamp 370 is tightened and connected by the elastic force of the spring 350 even if it is not pressurized, the underground wire W can be easily connected to the energizing air adapter.

In addition, the airflow adapter of the buried underground cable and the ground distribution box according to the present invention, even if the unexpected strong force acts downward to the underground cable (W), the connection between the underground wire (W) and the ground distribution box is not released. It has the advantage of being firmly coupled. In other words, since the connection is released only when the operator pushes the handle member 360 upward as needed, there is an effect that the power failure due to a sudden force is prevented.

1 is a cross-sectional view showing the air supply adapter of the conventional underground underground cable and ground distribution box,

Figure 2 is a perspective view showing the electric current adapter of the buried underground cable and ground distribution box according to the present invention,

Figure 3 is an enlarged cross-sectional view of a part of the electric ball adapter of the buried underground cable and ground distribution box according to the present invention,

4 is an exploded perspective view of the underground wire connection member,

5, 6 and 7 are cross-sectional views of the energizing air adapter of the buried underground cable and ground distribution box according to the present invention.

Explanation of the main parts of the accompanying drawings

100: case, 110: first passage,

120: second passage, 121: guide groove,

122: seating groove, 123: underground cable insertion,

200: connector terminal, 300: underground cable connecting member,

310: connector terminal connection, 311: connector terminal through hole,

320: underground electoral government, 330: first member,

331: connector terminal connection, 331a: connector terminal through hole,

332: spring connection, 340: moving block, 341: seating groove,

350: spring, 360: handle member,

361: underground cable insertion opening, 362: guide bar,

370: clamp, 371: the first slope,

372: second inclined plane, 373: wire insertion groove,

374: snap ring insertion groove, 380: snap ring, 400: cap,

B: ground distribution box, b: bushing, b1: bushing terminal,

W: underground wire, w1: lead wire, w2: cladding.

Claims (1)

An insulating case 100 having a first passage 110 penetrated in the horizontal direction and a second passage 120 communicating with the first passage 110 and opening to the outside; A connector terminal 200 made of a conductor material rotatably installed in the first passage 110 of the case 100 and detachably screwed to the bushing terminal b1 of the ground distribution box B; Buried underground cable and ground distribution box is installed in the second passage 120 of the case 100, the underground wire connecting member 300 of the conductor material of the conductor material for electrically connecting the underground wire (W) and the connector terminal 200 In the energizing adapter of The case 100 is formed in the lower side of the guide groove 121, the guide groove 121 is formed in the longitudinal direction so as to communicate with the second passage 120, the mounting groove 122 is enlarged to the outside toward the outside diameter Is formed on the lower side of the mounting groove 122 is further provided with an underground wire insertion portion 123 is inserted into the underground wire (W), The underground wire connection member 300 is formed at the lower end of the connector terminal connecting portion 331 and the connector terminal connecting portion 331 having a connector terminal through hole 331a through which the connector terminal 200 is inserted and electrically connected. A first member 330 having a spring connection part 332 fixedly installed at the second passage 120; It has a seating groove (341) which is enlarged to the outside toward the downward diameter, the movable block 340 of the conductor material is fitted so as to be movable up and down in the second passage 120 by the spring 350; A spring 350 made of a conductive material that supports the movable block 340 to be moved in one direction to the spring connection part 332 of the first member 330; The underground wire insertion hole 361 is formed to communicate with the second passageway 120 in a tubular shape which is fixedly movable in the longitudinal direction while surrounding the case 100, and moves along the guide groove 121. A handle member 360 fixed to the moving block 340 through the bar 362; A first insertion surface 371 and a first inclined surface 371 are formed on the inner surface thereof, and the first insertion surface 371 is formed to face the seating groove 341 of the movable block 340 by expanding a diameter outwardly toward the lower side. At least two clamps 370 are disposed to face each other with a second inclined surface 372 facing the mounting groove 122 of the case 100 is reduced in diameter toward the outside from the lower side; An airflow adapter of a buried underground cable and a ground distribution box further includes a snap ring 380 that supports the clamps 370 to be opposed to each other so as to be opened to each other.

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