KR102098300B1 - Securing device for safety of underground cable - Google Patents

Abstract

The present invention relates to a fixing device for preventing an underground distribution line from being separated with improved safety, in which the fixing device includes: a male fixing member (10) for pressing and fixing an underground distribution line (L); a female fixing member (20) movably fitted to the male fixing member (10) to press and fix the underground power distribution line (L); a connection member (30) accommodated in the male fixing member (10) to electrically connect underground power distribution lines (L), which are introduced into the connection member (30) through both ends of the connection member (30), to each other; a regulation screw (40) detachably fastened to the male fixing member (10) to regulate separation of the male fixing member (10) from the female fixing member (20); and a tension mechanism (50) connected to the male fixing member (10) and the female fixing member (20) to prevent the male fixing member (10) and the female fixing member (20) from being spaced apart from each other by pulling the male fixing member (10) and the female fixing member (20). According to the present invention, the underground distribution line is easily fixed to facilitate installation work, the underground distribution line is prevented from being separated to promote stability for electrical connections, and an electrical connection state is released with a simple operation, which is advantageous for an emergency situation.

Description

Securing device for safety of underground cable with improved safety

The present invention relates to a fixed device for preventing departure of the underground distribution line with improved safety.

Electricity distributed from the primary substation or secondary substation is transmitted or distributed to the power receiving facilities of each customer through a transmission and distribution system consisting of overhead power distribution lines and underground distribution lines, and it is also distributed to low voltage customers through special high voltage customers, high pressure customers, and various outdoor installation transformers. It is used for industrial and household purposes.

Among these, the transmission and distribution method using the underground through the transmission and distribution system composed of the underground distribution line provides an underground pipeline adapter to the underground distribution line into which the underground distribution line is inserted, and a plug is attached to the end of the underground distribution line to fasten this plug to the underground pipeline adapter. Is the way to do it.

Korean Patent Registration No. 10-1448143 (2014.10.08.) Discloses an 'underground distribution line connection device for installing an underground distribution line'.

However, such a conventional underground distribution line connecting device has a hassle and inconvenience of using a separate tool when urgently attempting to release the electrical connection.

1. Republic of Korea Registered Patent No. 10-1448143 (2014.10.08)

The present invention has been devised to solve the above problems, and the underground distribution line can be easily fixed, so installation work is convenient, and the separation of the underground distribution line is prevented, so that the electrical connection is secured, and the operation is simple. The purpose of the present invention is to provide a fixing device for preventing the departure of an underground power distribution line, which is capable of releasing the electrical connection and has improved safety in an emergency.

The present invention for achieving the above object,

The tubular body part into which the underground distribution line is introduced, an angle having a hook groove integrally formed on the outer circumferential surface of the body part, and a band part extending from one end of the body part to surround the outer circumferential surface of the underground distribution line and having a fastening part with both ends extending downward, A male fastener which is fastened by a fastening screw which is fastened to the fastening part and tightens the band part, and an arc plate extending side by side from the other end of the body part and having fastening holes and a bonding hole integrally formed on an outer peripheral surface;

The tubular body part into which the underground distribution line is introduced, an angle having a hook groove integrally formed on the outer circumferential surface of the body part, and a band part extending from one end of the body part to surround the outer circumferential surface of the underground distribution line and having a fastening part with both ends extending downward, Consisting of a fastening screw that is fastened to the fastening part and tightens the band part, and an inner circumferential surface extending side by side from the other end of the body part against the outer circumferential surface of the arc plate of the male fastener, and an arc plate integrally formed with a guide groove communicating with the fastening hole on the outer circumferential surface. Female type fixture;

An insulator that has a coupling protrusion that is removably inserted into a coupling hole on an outer circumferential surface and is drawn between the arc plates of a male fastener, and an insulator through which both sides of the underground distribution wire is drawn, and when wrapped by an insulator, the inside of the underground distribution line through both ends. Connection port consisting of a conductive rod for electrically connecting;

An intermittent screw that is detachably fastened to the fastening hole through the guide groove and restricts separation of the male and female clamps from each other;

It characterized in that it comprises a; a latch that is detachably fitted to the hook groove of the angle, and a tension mechanism consisting of a spring for pulling the latch.

The present invention can easily fix the underground power distribution line, which facilitates the installation work, prevents the separation of the underground power distribution line, promotes stability for the electrical connection, and can release the electrical connection state with a simple operation. It is advantageous.

1 is an assembled perspective view of a fixed device for preventing departure of an underground distribution line with improved safety according to the present invention.
Figure 2 is an exploded perspective view of a fixed device for preventing the departure of the underground distribution line with improved safety according to the present invention.
Figure 3 is a combined cross-sectional view of the fixing device for preventing departure of the underground distribution line with improved safety according to the present invention.
Figures 4a to 4c is a flow chart for explaining the process of interconnecting the underground distribution line using a fixed device for preventing departure of the underground distribution line with improved safety according to the present invention.
5A and 5B are views for explaining the action of the fixing device for preventing the departure of the underground distribution line with improved safety according to the present invention.

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

1 is an exploded perspective view of a fixing device for preventing departure of an underground distribution line with improved safety according to the present invention, and FIG. 2 is an exploded perspective view of a fixing device for preventing departure of an underground distribution line with improved safety according to the present invention, and FIG. 3 is safety according to the present invention This is a combined cross-sectional view of an improved underground distribution line fixing device.

1 to 3, the fixing device for preventing the underground distribution line according to the present invention is composed of a male fastener 10 and a female fastener 20, a connector 30, an intermittent screw 40 and a tension mechanism 50 As a result, according to this, the underground distribution line L can be easily fixed, so the installation work is convenient, the stability of the electrical connection is secured by preventing the underground distribution line L from deviating, and the electrical connection state is maintained only by simple operation. It can be canceled, which is advantageous for emergency situations.

The male fastener 10 is an insulating material composed of a body portion 11, an angle 12, a band portion 13, a tightening screw 14, and an arc plate 15, in the case of this embodiment, the underground power distribution wire ( It serves to press and fix the outer circumferential surface of L).

The body portion 11 is a circular tube through which the inside is formed, and on the outer circumferential surface of the body portion 11, an 'b'-shaped angle 12 is integrally formed to face each other based on the body portion 11, In this angle 12, a hook groove 12a is formed so that the clasp 51 of the tension mechanism 50 can be detachably hooked.

In addition, a band portion 13 is integrally formed at one end of the body portion 11, and a part of the band portion 13 is integrally formed with the body portion 11, and the rest of the body portion is cut off to form a body portion 11 It is spaced from, and both ends of the incision band portion 13 are integrally formed with a fastening portion 13a extending downward.

In addition, the fastening screw 14 is fastened to the fastening part 13a, and the band part 13 having elasticity is closed or opened by the action of tightening or loosening the fastening screw 14, so that the underground power distribution line L The outer circumferential surface is strongly compressed (pressed) to fix it or to allow the underground power distribution line L to escape.

In addition, the other end of the body portion 11 extends side by side and an arc plate 15 having an arc-shaped cross section is integrally formed. The arc plate 15 has a connecting port 30 which is introduced inwardly to form a coupling protrusion ( The coupling hole 15b corresponding to the coupling protrusion 31b is integrally formed so as to be detachably fixed via the medium 31b), and is disposed adjacent to the coupling hole 15b and the intermittent screw 40 is detachably attached. A fastening hole 15a in which a screw tab is formed on an inner circumferential surface so as to be fastened is integrally formed.

The female fastener 20 is an insulating material composed of a body portion 21, an angle 22, a band portion 23, a tightening screw 24, and an arc plate 25, in the case of this embodiment, the underground power distribution wire ( The outer circumferential surface of L) is fixed by pressing, and is movably fitted in the male fastener 10 in a slide manner, and separation is prevented by the intermittent screw 40.

The body portion 21 is a circular tube through which the inside is formed, and on the outer circumferential surface of the body portion 21, an angle 22 of 'b' shape is integrally formed to face each other based on the body portion 21, In this angle 22, a hook groove 22a is formed so that the clasp 51 of the tension mechanism 50 can be detachably hooked.

In addition, a band portion 23 is integrally formed at one end of the body portion 21, and a part of the band portion 23 is integrally formed with the body portion 21, and the rest of the body portion is cut away to form a body portion 21. It is spaced from, and both ends of the incision band portion 23 are integrally formed with a fastening portion 23a extending downward.

In addition, the fastening screw 24 is fastened to the fastening part 23a, and the band part 23 having elasticity is closed or opened by the action of tightening or loosening the fastening screw 24, so that the underground power distribution line L The outer circumferential surface is strongly compressed (pressed) to fix it or to allow the underground power distribution line L to escape.

In addition, the other end of the body portion 21 extends side by side and an arc plate 25 having an arc-shaped cross section is integrally formed. The inner diameter of the arc plate 25 is the arc plate 15 of the male fastener 10 ) Is the same as the outer diameter, and when inserted in a slide manner, the inner circumferential surface of the arc plate 25 faces the outer circumferential surface of the arc plate 15 of the male fastener 10.

In addition, the arc plate 25 is formed integrally with a guide groove 25a through which the intermittent screw 40 that is fastened to the fastening hole 15a can be moved. The guide groove 25a is an arc plate 25. It consists of a horizontal guide groove (25a-1) formed along the longitudinal direction of the first and second receiving grooves (25a-2, 25a-3) formed in the circumferential direction from both ends of the horizontal guide groove (25a).

For example, when the intermittent screw 40 is applied to the first receiving groove 25a-2, one of the underground distribution lines L is maintained as the male fastener 10 and the female fastener 20 are spaced apart from each other. Is disconnected from the connection port 30, the electrical connection state is released (non-conduction), and when the intermittent screw 40 is fastened to the second receiving groove 25a-3, the male fastener 10 and the female fastener 20 are The underground power distribution line (L) is electrically interconnected (conducted) through the connection port 30 as it maintains a state of being closely attached.

The connection port 30 is a member composed of an insulator 31 and a conductive rod 32, and is inserted and fixed between the arc plates 15 of the male fastener 10 in the present embodiment, and is inserted into the inside through both ends. It functions to electrically connect the distribution line (L).

The insulator 31 is a member that penetrates the conductive rod 32 and insulates both ends thereof, and a part of the outer circumferential surface (left and right) is recessed along the longitudinal direction corresponding to the inner diameter of the arc plate 15, and the remaining outer circumferential surface (Upper and lower) has the same diameter as the outer diameter of the arc plate 15 and the rail portion 31a that guides when inserted into the arc plate 15 is integrally formed.

In addition, in the recessed portion of the insulator 31, the engaging projection 31b corresponding to the engaging hole 15b is integrally formed, and the male fastener 10 and the connecting hole 30 are coupled with the engaging hole 15b. It is fixed to each other detachably via (31b).

The conductive rod 32 is provided on the insulator 31 and serves to electrically interconnect the underground power distribution lines L that are drawn inward.

The intermittent screw 40 is a means that is detachably fastened to the fastening hole 15a through the guide groove 25a, in the case of this embodiment, the male and female fasteners 10 and the female fasteners 20 that are mutually coupled are unauthorized. It serves as a separate limiting.

In addition, when the intermittent screw 40 is moved along the horizontal guide groove 25a-1 and is accommodated in the first receiving groove 25a-2 or the second receiving groove 25a-3, the female fixing fixture 20 ) Slide movement is limited.

On the other hand, when the intermittent screw 40 is separated from the fastening hole 15a, the male fastener 10 and the female fastener 20 are separated from each other.

The tension mechanism 50 is a member composed of a clasp 51 and a spring 52, in the case of this embodiment is detachably coupled to the angle (12, 22) of the male fastener 10 and the female fastener 20 The fastener 10 and the female fastener 20 serve to pull so as not to be apart from each other.

The clasp 51 is a member having a 'ㄱ' shape, and in the case of the present exemplary embodiment, the clasp 51 is detachably coupled to the hook grooves 12a and 22a of the angles 12 and 22 to be hung.

The spring 52 is a common coil spring, and both ends are fixed to the clasp 51, respectively, and serve to pull the male fastener 10 and the female fastener 20 through elastic force.

As long as the external force does not act higher than the elastic force of the spring 52 by the action of the tension mechanism 50 as described above, the male fastener 10 and the female fastener 20 are maintained in a mutually coupled state, whereby The distribution line (L) is able to maintain an electrical connection through the connection port (30).

Even if the external force is released, even if the male and female male fixtures 10 and the female female fixture 20 are separated from each other due to the external force higher than the elastic force of the spring 52, the male and female male fixtures 10 and female female fixtures by the elastic force of the spring 52 20), the underground power distribution line (L) is electrically interconnected through the connection port (30).

4A to 4C are flowcharts for explaining a process of interconnecting underground distribution lines using a fixed device for preventing departure of underground distribution lines with improved safety according to the present invention.

Referring to Figure 4a, when the underground distribution line (L) into the male fastener 10 and female fastener 20, respectively, and then tighten the tightening screws (14,24) of the male fastener 10 and female fastener 20 , As the band portions 13 and 23 are closed, the outer circumferential surface of the underground power distribution line L is strongly pressed and fixed.

Referring to Figure 4b, when the underground distribution line (L) is fixed to the male fixture 10 and female fixture 20 as described above, when the connection port 30 is pushed between the arc plate 15 of the male fixture 10 , In the process of connecting 30, the engaging projection 31b is fitted into the engaging hole 15b, and thereby the male fastener 10 and the connecting port 30 form an integral structure.

When the male fastener 10 and the connector 30 are mutually coupled as described above, the arc plate 25 of the female fastener 20 is fitted into the outer peripheral surface of the arc plate 15 of the male fastener 10.

As described above, when the male fastener 10 and the female fastener 20 are mutually coupled via the arc plates 15 and 25, the intermittent screw 40 is inserted into the fastening hole 15a exposed through the guide groove 25a. To conclude.

On the other hand, in the process of coupling the male fastener 10 and the female fastener 20 and the connector 30 to each other, the underground distribution wire L fixed to the male fastener 10 and the female fastener 20 is a connector 30 It is introduced into the inside of the conductive rod 32 is electrically connected to each other.

Referring to Figure 4c, when the male fastener 10 and the female fastener 20 and the connector 30 are mutually coupled as described above, any one of a pair of clasps 51 constituting the tension mechanism 50 is male Hang the hook groove (12a) of the angle (12) constituting the fixture 10, the rest of the clasp (51) is hooked to the hook groove (22a) of the angle (22) constituting the female fastener (20), and Likewise, when the clasp 51 is applied to the hook grooves 12a and 22a of the angles 12 and 22, respectively, the spring 52 is fixed to the clasp 51 in a tensioned state.

5A and 5B are views for explaining the operation of the fixing device for preventing the departure of the underground distribution line with improved safety according to the present invention.

If the need to urgently cut off the flow of electricity in the state that the underground power distribution line (L) is electrically connected, first, the female fastener 20 is rotated around the male fastener 10 to control the intermittent screw 40 To be separated from the second receiving groove (25a-3).

As described above, when the intermittent screw 40 is deviated from the second receiving groove 25a-3, the operator can move the female fixing member 20 so that the intermittent screw 40 can be moved along the horizontal guide groove 25a-1. Pulling in the longitudinal direction, the underground power distribution line (L) fixed to the female fixture 20 is moved together with the female fixture 20 and is separated from the connection port 30, thereby electrically connecting the underground power distribution line L The state is released naturally.

And when the intermittent screw 40 is located in the first receiving groove 25a-2, the operator rotates the female fastener 20 around the male fastener 10 so that the intermittent screw 40 is the first receiving groove ( 25a-2), where the spring 52 of the tension mechanism 50 is stretched.

When the intermittent screw 40 is drawn into the first receiving groove 25a-2 as described above, even if the restoring force of the spring 52 acts on the male fastener 10 and the female fastener 20, the intermittent screw 40 is the first Since it is hung in the receiving groove (25a-2), the movement of the female clamp (20) is limited.

On the other hand, when the urgent situation is over, the reverse distribution of the method, the underground power distribution line (L) fixed to the female fastener 20 and the underground power distribution line (L) fixed to the male fastener 10, the connection port 30 It is to be electrically connected as a medium.

On the other hand, by proceeding in the reverse order of the method, by the restoring force of the spring 52, which was stretched, the female fastener 20 is fitted and coupled to the male fastener 10 without applying a separate force.

According to this embodiment, the underground power distribution line (L) can be easily fixed, so the installation work is convenient, and the underground power distribution line (L) is prevented from deviating, thereby improving the stability of the electrical connection. It is advantageous for emergency situations because it can release the state.

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

10: male fastener 20: female fastener 11,21: body
12,22: angle 12a, 22a: hook groove 13,23: band
13a, 23a: Fastening part 14,24: Tightening screw 15,25: Arc plate
15a: fastening hole 15b: engaging hole 25a: guide groove
30: connection port 31: insulator 31a: rail portion
31b: engaging projection 32: conductive rod 40: intermittent screw
50: tension mechanism 51: clasp 52: spring

Claims (1)

From the end of the body portion 11 and the angle 12 having a tubular body portion 11 into which the underground power distribution line L is introduced, and a hook groove 12a integrally formed on the outer circumferential surface of the body portion 11 A band portion 13 having an extended portion surrounding the outer circumferential surface of the underground power distribution line L and having a fastening portion 13a extending downwardly, and a tightening screw 14 fastened to the fastening portion 13a to tighten the band portion 13 and , A male fastener 10 extending side by side from the other end of the body portion 11, consisting of an arc plate 15 integrally formed with a fastening hole 15a and a bonding hole 15b on an outer circumferential surface;
From the end of the body portion 21 and the angle 22 having a tubular body portion 21 into which the underground power distribution line L is introduced, and a hook groove 22a integrally formed on the outer circumferential surface of the body portion 21 A band portion 23 having a fastening portion 23a extending at both ends downwardly extending the outer circumferential surface of the underground power distribution line L, and a tightening screw 24 fastened to the fastening portion 23a to tighten the band portion 23 and , A guide groove (25a) extending side by side from the other end of the body portion 11 is in contact with the outer circumferential surface on the arc plate 15 of the male fastener 10, and the guide groove 25a communicating with the fastening hole 15a on the outer circumferential surface Female fixed fixture 20 composed of an arc plate 25 formed of;
An insulator having an engaging projection (31b) that is removably fitted to the coupling hole (15b) on the outer circumferential surface and is introduced between the arc plates (15) of the male fastener (10), and through which the underground distribution line (L) is introduced. 31), a connection port 30 composed of a conductive rod 32 electrically connected to the underground power distribution line (L) drawn inward through both ends when wrapped by an insulator 31;
An intermittent screw 40 that penetrates through the guide groove 25a and is detachably fastened to the fastening hole 15a to limit the separation between the male fastener 10 and the female fastener 20;
It includes; a tensioning mechanism 50 consisting of a clasp 51 and a spring 52 for pulling the clasp 51 detachably fitted to the hook grooves 12a and 22a of the angles 12 and 22;
The guide groove (25a), the horizontal guide groove (25a-1) formed along the longitudinal direction of the arc plate 25 so that the intermittent screw 50 can be moved, and the circumference from one end of the horizontal guide groove (25a) The second receiving groove 25a-3 in which the intermittent screw 50 is removably accommodated to be formed in the direction to maintain the energized state, and the other end of the horizontal guide groove 25a are formed in the circumferential direction to maintain the non-energized state. The intermittent screw 50 is configured to include a first receiving groove (25a-2) that is removably accommodated.

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