KR102063969B1 - Wiring facilities for underground distribution cables capable of earthquake-proof protection - Google Patents

Abstract

The present invention relates to a wiring facility of an underground power distribution cable having earthquake-resistance, which comprises: an underground pipe having an empty inner shape and buried in the ground; and a wiring support device installed with a power distribution cable.

Description

Wiring facilities for underground distribution cables capable of earthquake-proof protection}

The present invention relates to a wiring facility of an underground distribution cable capable of earthquake-resistant protection that can protect a distribution cable embedded in an earthquake.

In general, the distribution cable is installed in the ground, but when the distribution cable is located on the ground, it hinders aesthetics and may cause safety accidents. Recently, the distribution cable is buried in the ground.

When laying the distribution cable in the ground, the underground pipeline is embedded in the ground, and then the distribution cable is laid in the interior of the underground pipeline. Since the distribution cable embedded in the ground is vulnerable to earthquakes, an earthquake resistant device is installed. Protect the distribution cables from earthquakes.

As a facility for protecting a distribution cable installed in such underground, there is a conventional "distribution line protection panel of underground lines" of Korea Patent Publication No. 10-0907724 (2009.7.17.).

Conventionally, the distribution line protection panel of an underground line includes an underground tunnel buried underground; A base formed on the upper surface along the longitudinal direction and built into the underground tunnel; A moving member having a protrusion movably inserted into the guide part; A spring installed in the guide part to support the moving member in a spring; A supporter installed on the upper portion of the movable member, and a shelf configured to be horizontally installed from the supporter so that the underground wire is seated thereon; Magnetic type proximity switch consisting of a magnet installed on the support of the shelf, and a reed switch for detecting the shaking of the shelf in conjunction with the magnet; A control unit for operating and controlling the magnetic proximity switch; It is operated by the control unit, and includes a transmission unit for outputting a signal indicating the shaking of the shelf to the outside.

The distribution line protection panel of the conventional underground line having such a configuration has an effect of stably supplying power even when an earthquake occurs and immediately confirming the state of the underground line.

However, since the upper part of the distribution line protection panel of the conventional underground line is separated from the underground tunnel, there is a risk of conduction in the event of an earthquake. When the earthquake with a large vibration occurs, the behavior of the shelf is large, there was a problem that the distribution cable is damaged.

The present invention has been made to solve the above problems, the problem to be solved by the present invention is to fix the upper end of the shelf to the underground line to prevent the fall in the event of an earthquake, as well as horizontal vibration and vertical It is possible to cope with earthquakes that generate phosphorus vibrations, and to provide earthquake distribution cable wiring facilities capable of earthquake protection to minimize damage of the distribution cables by firmly supporting the distribution cables in the event of earthquakes with relatively large vibrations. The purpose.

According to an embodiment of the present invention for achieving the above object, the wiring facility of the underground distribution cable capable of earthquake protection is formed in an empty shape so as to install a distribution cable, and an underground pipe line embedded in the ground, and the inside of the underground pipe line A plurality of wire support devices are disposed in the longitudinal direction of the underground pipe line, and the power distribution cable is installed, and the wire support device is installed in the underground pipe path so that the plurality of power distribution cables are spaced up and down on both sides. A support pillar, a lower support plate portion having a larger area than the support pillar at a lower portion of the support pillar, a lower rail portion installed at a lower portion of the underground pipe passage in the width direction of the underground pipe passage to support the support pillar, and the lower support plate portion The support pillar moves in the width direction of the underground pipeline when the earthquake occurs. Located in the lower portion of the support pillar to correspond to the lower trolley portion running along the lower rail portion, is installed between the lower trolley portion and the lower support plate portion to absorb the vibration of the earthquake by the elastic force transmitted to the distribution cable A shock absorbing spring, which is installed on the support pillar to prevent the vibration from occurring, when the vibration of the earthquake of a predetermined size or more occurs, the support pillar is fixed to the lower rail portion to fix the movement of the lower bogie and at the same time the shock absorbing spring. And a pillar fixing means for fixing the support pillar to the lower rail by disabling the elastic force of the pillar, wherein the pillar fixing means has a cylinder shaft installed on the support pillar and settled toward the lower rail portion, the cylinder shaft. As the cylinder shaft is pulled from the pull cylinder It includes a group lower rail to straddle the lower rail fixed plate to pull the support columns and the maximum compression to the portion where the lower rail direction fixing the buffer spring.

An upper rail part installed on an upper portion of the underground pipe path corresponding to the lower rail part, and the support pillar moves in a width direction of the underground pipe path so as to prevent the support pillar from falling, and an upper part of the support pillar to correspond to an earthquake; It may be installed in the upper rail portion to run along the upper rail portion.

The support pillar includes an upper rail fixing plate protruding from a portion corresponding to the upper rail portion, and the upper rail portion is formed in the upper rail groove into which the rail fixing plate is inserted and slides, and an inner lower portion of the upper rail groove. And an upper fixing tooth portion, wherein the upper rail fixing plate may include an upper protruding tooth that spans the upper fixing tooth portion and fixes the position of the supporting pillar when the support pillar is pulled by the cylinder shaft to the lower rail portion. have.

The lower rail part includes a lower rail groove into which the lower rail fixing plate is inserted and slides, and a lower fixing tooth formed on an inner upper portion of the lower rail groove, wherein the lower rail fixing plate is formed by the cylinder shaft. When pulled, it may include a lower protruding teeth that spans the lower fixing teeth and fixes the position of the support pillar.

According to the present invention, the upper portion of the support pillar for supporting the distribution cable is fixed by the upper rail portion to prevent the support pillar from being conducted when an earthquake occurs, as well as generated up and down by the buffer spring and the support spring. Damping of earthquake vibrations can minimize damage to distribution cables.

In addition, in case of an earthquake generating a vibration of a predetermined size or more, the pillar fixing means is firmly fixed to the underground pipeline so that the support pillar flows due to the vibration of the earthquake and prevents damage to the distribution cable. Can be.

In addition, a tension table for supporting the distribution cable is provided in the lower portion of the bogie to prevent the distribution cable from vibrating and being damaged by the vibration of the earthquake.

1 is a front sectional view showing a wiring facility of an underground distribution cable capable of earthquake protection according to an embodiment of the present invention.
Figure 2 is an enlarged view of the lower rail portion in the power distribution facility of the underground distribution cable capable of earthquake protection according to an embodiment of the present invention, (a) is a front sectional view (b) is a side sectional view.
3 is an enlarged view of an upper rail in a power distribution facility of an underground distribution cable capable of earthquake protection according to an embodiment of the present invention, (a) is a front sectional view (b) is a side sectional view.
Figure 4 is a front sectional view showing a wiring facility of the underground distribution cable capable of earthquake protection according to an embodiment of the present invention, showing the operating state of the column fixing means.
FIG. 5 is a side sectional view showing a power distribution facility of an underground distribution cable capable of earthquake protection according to an embodiment of the present invention, and showing a state in which the distribution cable is supported by a tension bar according to the operation of the column fixing means.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the wiring facility 100 of the underground distribution cable capable of earthquake protection according to an embodiment of the present invention may include an underground pipe line 110.

The underground pipeline 110 may be embedded with a distribution cable 200 to be installed in the underground.

The underground pipeline 110 may be formed by concrete according to the position to embed the distribution cable 200, the underground pipeline 110 is formed in a size that allows the worker to enter the interior and embed the distribution cable 200 can do.

The underground pipeline 110 may be formed in a hollow pipe shape, the inside of the underground pipeline 110, the wiring support device 120 is installed may be installed a plurality of distribution cables 200.

1 to 5, the wiring facility 100 of the underground distribution cable capable of earthquake protection according to an embodiment of the present invention may include a wiring support device (120).

The wiring support device 120 may support the plurality of distribution cables 200 in the underground pipeline 110, and the wiring support device 120 may distribute the distribution cable from the earthquake in response to the vibration of the earthquake when an earthquake occurs. Damage to the 200 can be prevented.

On the other hand, a plurality of the wire support device 120 may be installed along the longitudinal direction of the underground pipeline 110 to support the distribution cable 200.

The wire support device 120 may include a support pillar 130.

The support pillar 130 may have a distribution cable 200 installed on both sides of the ground pipe 110, and the support pillar 130 may include a seat 132 for seating a plurality of distribution cables 200. A plurality of seating posts 132 may be installed in the support column 130 in the up and down direction so as to protrude to both sides of the support column 130 and to install the plurality of distribution cables 200 in the up and down direction of the support column 130. Can be.

In addition, the upper and lower support plate portions 133 and the lower support plate portion formed in the shape of a plate wider than the periphery of the support pillar 130 to prevent the support pillar 130 from falling at the top and bottom of the support pillar 130 ( 131 may be formed.

As illustrated in FIGS. 2 and 3, the wire support apparatus 120 may include an upper rail unit 170 and a lower rail unit 140.

The lower rail unit 140 and the upper rail unit 170 support the support column 130 so that the support pillar 130 moves in the width direction of the underground pipeline 110 according to the occurrence of the earthquake and can respond to the earthquake. can do.

The lower rail unit 140 may support the lower end of the support pillar 130, and the upper rail unit 170 supports the upper end of the support pillar 130 so that the support pillar 130 is conducted when an earthquake occurs. You can prevent it.

The lower rail part 140 may be formed along the width direction of the underground pipe path 110 at the lower portion of the underground pipe path 110, and the upper rail part 170 may correspond to the underground pipe path 110 corresponding to the lower rail part 140. It may be formed along the width direction of the underground pipe line 110 at the position of the top.

The lower rail groove 141 may be formed along the longitudinal direction of the lower rail part 140 at the center of the lower rail part 140, and the longitudinal direction of the upper rail part 170 may also be formed at the center of the upper rail part 170. Along the upper rail groove 171 may be formed.

In addition, the lower rail unit 140 and the upper rail unit 170 move from the center of the underground pipeline 110 to the width of the underground pipeline 110 by a predetermined distance in the width of the support column 130 to move the left and right directions of the earthquake. The support pillar 130 may be supported to correspond to the vibration.

As shown in FIG. 2, the wire support apparatus 120 may include a lower trolley 150 and an upper trolley 180.

The lower trolley 150 may have wheels installed to travel along the lower rail 140, and the lower trolley 150 may move along the upper portion of the lower rail 140 and may react to vibrations in the left and right directions of the earthquake. Can respond.

For example, when the underground pipeline 110 is shaken from side to side due to the occurrence of an earthquake, the support pillar 130 is positioned in its original state by the weight of the support pillar 130 and only the underground pipeline 110 is shaken according to the vibration of the earthquake. The lower bogie 150 may slide in the width direction with respect to the underground pipeline 110.

In addition, a buffer spring 155 is installed between the lower bogie 150 and the lower support plate 131 formed at the lower end of the support pillar 130, and the support pillar 130 is disposed at the lower bogie 150. Supported by the elastic force to buffer the vibration of the up and down direction of the earthquake can be minimized to be transmitted to the distribution cable 200 to the vibration of the earthquake.

As shown in FIG. 3, the upper bogie 180 may have wheels installed to travel along an upper portion of the upper rail 170, and the upper bogie 180 may be located at the top of the support pillar 130. It may be configured by installing a wheel on the upper support plate 133.

In addition, the wheels installed on the upper support plate 133 positioned on the upper side of the support pillar 130 are supported by the support spring 181 to support the support spring 181 together with the shock absorbing spring 155 to support the support pillar. The 130 can be protected from the up and down vibration caused by the earthquake.

As shown in Figure 2 and 4, the wire support device 120 may include a column fixing means (160).

The pillar fixing means 160 may firmly fix the support pillar 130 to the underground pipe line 110 when an earthquake of a predetermined size or more occurs, thereby preventing damage to the distribution cable 200 due to the vibration of the earthquake.

For example, when an earthquake having a relatively small magnitude of vibration occurs, the earthquake may be counteracted by the movement of the lower bogie 150 and the buffer spring 155, but a relatively large earthquake may occur. In this case, the shock absorbing spring 155 loses the shock absorbing force, and according to the movement of the lower trolley portion 150, a greater vibration may occur, or the distribution cable 200 may be damaged due to abnormal behavior.

In order to prevent this, the column fixing means 160 is fixed by the support column 130 to the underground pipeline 110 when the vibration of the predetermined size or more occurs by allowing the underground pipeline 110 and the support pillar 130 to work together The damage of the power distribution cable 200 can be prevented.

At this time, the underground pipeline 110 is installed with a vibration measuring sensor that can measure the magnitude of the vibration of the earthquake to operate the column fixing means 160 in accordance with the vibration measured by the vibration measuring sensor to support the support column 130 into the underground pipe It can be fixed to (110).

The pillar fixing means 160 may include a pulling cylinder 161.

The pulling cylinder 161 is installed on the support pillar 130 and pulls the support pillar 130 in the direction in which the lower rail portion 140 is located, thereby lowering the center of gravity of the support pillar 130 and supporting it at the same time. The pillar 130 may be fixed by pulling in the direction in which the lower rail unit 140 is located.

The pulling cylinder 161 may be installed such that the cylinder shaft 162, which is raised, is raised from the lower portion of the support pillar 130, and the cylinder shaft 162 penetrates the lower support plate portion 131 and the lower rail portion 140. Thus, it may be located up to the lower rail groove 141 formed in the lower rail unit 140.

The pulling cylinder 161 may be implemented as a known cylinder in which the cylinder shaft 162 is mounted by the hydraulic or pneumatic or electric motor.

The pillar fixing means 160 may include a lower rail fixing plate 163.

The lower rail fixing plate 163 may be installed to slide along the longitudinal direction of the lower rail portion 140 in the lower rail groove 141 formed in the center of the lower rail portion 140.

At this time, the lower rail fixing plate 163 may be disposed to be able to flow up and down in the lower rail groove 141 so as not to interfere with the buffering action of the buffer spring (155).

The lower rail fixing plate 163 may be formed in the shape of a plate, and the lower rail fixing plate 163 is coupled to the cylinder shaft 162 of the pulling cylinder 161, so that the lower rail fixing plate ( As the 163 is in close contact with the lower rail unit 140, the pulling cylinder 161 may pull the support column 130 downward so that the support column 130 may be fixed to the lower rail unit 140.

For example, when the pulling cylinder 161 is operated to insert the cylinder shaft 162 inward, the lower rail fixing plate 163 is stretched over the inner upper portion of the lower rail groove 141, and the pulling cylinder 161 is pulled, The support cylinder 130 on which the pulling cylinder 161 is installed is moved downward.

At this time, since the shock absorbing spring 155 is fully compressed, the shock absorbing function of the shock absorbing spring 155 is lost, and the support pillar 130 is pressed against the lower rail part 140 by the pulling cylinder 161, and thus the lower rail part. The movement of the lower bogie 150 is also fixed at 140 so that the support pillar 130 may be firmly fixed to the underground pipeline 110.

On the other hand, the upper surface of the lower rail fixing plate 163 is formed so that the lower protruding teeth 163a protrudes upward, the lower rail groove 141, the lower fixing teeth 143 on the inner upper portion of the lower rail portion 140 When the pulling cylinder 161 is pulled along the lower rail fixing plate 163 is formed along the lower protruding teeth 163a across the lower fixed teeth 143 so that the support pillar 130 is moved along the lower rail portion 140 Can be prevented.

As shown in FIG. 3, the wiring facility 100 of the underground distribution cable capable of earthquake protection according to an embodiment of the present invention may include an upper rail fixing plate 135.

The upper rail fixing plate 135 may be formed to have a larger circumference than the circumference of the support pillar 130 at a portion of the support pillar 130 corresponding to the upper rail groove 171 formed in the upper rail portion 170. , The upper rail fixing plate 135 is fixed to the support column 130 by the upper rail fixing plate 135 is in close contact with the upper rail groove 171 when the support pillar 130 moves to the lower side under the action of the pull cylinder 161. You can.

On the other hand, the bottom surface of the upper rail fixing plate 135 is formed with an upper protrusion tooth 135a protruding downward, the upper fixed tooth portion 173 is engaged with the upper protrusion tooth 135a in the inner lower portion of the upper rail groove 171. When the support pillar 130 moves downward by the pulling cylinder 161, the upper rail fixing plate 135 moves downward along with the support pillar 130, and the upper protruding teeth 135a are fixed upward. Engagement with the tooth portion 173 may fix the movement of the support pillar 130 in the upper rail portion 170.

As illustrated in FIG. 5, the wiring facility 100 of the underground distribution cable capable of earthquake protection according to an embodiment of the present invention may include a distribution cable 200 tension band 190.

The distribution cable 200 tension table 190 of the distribution cable 200 supported by the support pillar 130 when the support pillar 130 moves downward toward the lower rail portion 140 according to the operation of the pull cylinder. By supporting the spaced parts, the distribution cable 200 may be prevented from being shaken by an earthquake to prevent damage to the distribution cable 200.

The tension table 190 may be installed to extend upward from the lower trolley portion 150 to support a portion spaced apart in the direction in which the distribution cable 200 is installed in the support column 130, and the tension table 190 may have a support pillar. It may be formed on both sides of the lower cart 150 to support the distribution cable 200 installed on both sides of the 130, the tension table 190 is located on both sides of the lower cart 150 is spaced up and down Support portions may be formed to support each of the distribution cable 200 is disposed.

The tension table 190 configured as described above is lowered together with the height of the distribution cable 200 when the support pillar 130 is moved to the lower portion where the lower rail portion 140 is positioned by the pulling cylinder 161.

However, the lower trolley 150 installed in the lower rail unit 140 is positioned in the state, so that the distribution cable supported by the tension table 190 is higher than the height of the distribution cable 200 fixed to the support pillar 130 ( Since the height of the support 200 causes the distribution cable 200 to be lowered in tension, the shaking of the distribution cable 200 may be minimized as the earthquake occurs, thereby minimizing damage to the distribution cable 200.

The operation and effects between the components described above will be described.

The wiring facility 100 of the underground distribution cable capable of earthquake protection according to an embodiment of the present invention is installed in the underground pipeline 110 so that the wiring support device 120 is spaced at a predetermined interval, and the plurality of wiring support devices 120 are provided. The power distribution cable 200 is installed via).

The wire support device 120 is provided with an upper rail portion 170 on the upper portion of the underground pipeline 110, the lower rail portion 140 is installed on the lower portion corresponding thereto.

In addition, a lower trolley portion 150 traveling along the lower rail portion 140 is positioned below the support pillar 130 on which the distribution cable 200 is installed, and the lower trolley portion 150 and the support pillar 130 are provided. A buffer spring 155 is installed between the lower support plate 131 positioned at the lower portion.

The lower rail fixing plate 163 is inserted into and installed in the lower rail groove 141 of the lower rail part 140, and the lower rail fixing plate 163 is coupled to the cylinder shaft 162 of the pulling cylinder 161.

The lower protruding teeth 163a protrude from the upper surface of the lower rail fixing plate 163, and the lower fixing teeth 143 are formed along the lower rail groove 141 in the lower rail groove 141.

In addition, the upper rail portion 170, the upper trolley portion 180 is installed to run the upper rail portion 170, a support spring (between the wheel of the upper trolley portion 180 and the upper support plate portion 133 ( 181 is installed to cushion.

An upper rail fixing plate 135 coupled to the support pillar 130 is inserted into the upper rail groove 171 of the upper rail unit 170, and an upper fixing tooth portion 173 is formed below the upper rail fixing plate 135. The upper rail fixing plate 135 has a lower protrusion tooth 163a formed to protrude downward.

Then, the lower trolley 150 is provided with a tension table 190 for supporting the tension table 190 to be spaced apart from the portion of the distribution line that is supported on the support pillar 130.

When the earthquake protection cable wiring facility 100 according to the embodiment of the present invention configured as described above has an earthquake, when the left and right vibrations occur in the underground pipeline 110 due to the earthquake, the support pillar 130 ) Is installed on the support pillar 130 so that the upper and lower portions are slidably moved by the upper and lower trolley portions 180 and 150 and 150 on the lower rail portion 140 and the upper rail portion 170. Due to the weight of 200, only the underground pipeline 110 may be shaken to prevent damage to the distribution cable 200 due to an earthquake.

At the same time, when the vibration up and down due to the earthquake, the lower portion of the support column 130 is supported by the buffer spring 155, the upper portion of the support column 130 is supported by the support spring 181 to the underground pipe By buffering the vibration acting on the support pillar 130 according to the vertical vibration of the 110, it is possible to protect the distribution cable 200.

As shown in FIGS. 4 and 5, when vibrations of a predetermined size or more are detected by the vibration measuring sensor, the column fixing means 160 is operated by the vibration measuring sensor to support the support column 130 through the underground pipe line 110. Fasten firmly to the inside.

The column fixing means 160 is pulled by the pull cylinder 161 to insert the cylinder shaft 162, the lower rail fixing plate 163 coupled to the cylinder shaft 162 is spread over the upper surface of the lower rail portion 140, When the pulling is carried out continuously, the lower rail fixing plate 163 spans the lower rail part 140 and can no longer move, so the pulling cylinder 161 itself moves in the direction in which the lower rail part 140 is located. .

As such, when the pulling cylinder 161 moves in the direction in which the lower rail part 140 is positioned, the support pillar 130 to which the pulling cylinder 161 is coupled moves in the direction in which the lower rail part 140 is located as a whole. Due to the upper rail fixing plate 135 also spans the upper end of the upper rail groove 171, the upper and lower portions of the support pillar 130 is firmly fixed.

At this time, when the support pillar 130 is moved downward by the pull cylinder 161, the buffer spring 155 for supporting the support pillar 130 by the elastic force is maximally compressed and the buffering function of the buffer spring 155 is lost. Therefore, the support pillar 130 may be firmly fixed to the underground pipeline 110.

On the other hand, when the support column 130 is moved downward by the pull cylinder 161, the lower projection tooth 163a formed in the lower rail fixing plate 163 is the lower fixed tooth portion 143 formed in the lower rail groove 141 Meshing with the upper protruding teeth 135a formed on the upper rail fixing plate 135 and the upper fixing teeth 173 formed on the upper rail groove 171 to limit the movement of the support column 130 in the width direction, In the underground pipeline 110, the support pillar 130 may be more firmly fixed.

And, when the support column 130 moves downward by the pull cylinder 161, because the position of the tension table 190 installed in the lower bogie 150 is not changed, while the support column 130 moves downward, Lifting and supporting the spaced apart portion of the distribution cable 200 to support the portion of the distribution cable sagging between the wiring support device 120, thereby shaking the distribution cable 200 by the vibration of the earthquake. By minimizing damage to the distribution cable 200 can be minimized.

Therefore, the wiring facility 100 of the underground distribution cable capable of earthquake protection according to the embodiment of the present invention is supported by the shock absorbing spring 155, the upper bogie 180 and the lower bogie 150 in response to the vibration of the earthquake. As the pillars 130 correspond to each other, damage of the distribution cable 200 due to an earthquake may be minimized.

In addition, by supporting the upper end of the support pillar 130 for supporting the distribution cable 200 can minimize the conduction of the support pillar 130 in the interior of the underground pipeline 110 during the occurrence of an earthquake.

In addition, the column fixing means 160 when the generation of the vibration of a predetermined size or more firmly fixed to the support column 130 in the underground pipeline 110, it is possible to prevent damage to the distribution cable 200 due to the earthquake.

In addition, the tension table 190 is installed on the lower bogie 150 to minimize the shaking of the distribution cable 200 during the operation of the column fixing means 160 to prevent damage to the distribution cable 200 due to the vibration of the earthquake. Can be.

Although the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and the present invention is easily changed and equivalent to those of ordinary skill in the art to which the present invention pertains. Includes all changes and modifications to the scope of the matter.

100: wiring facility for underground distribution cable capable of seismic protection
110: underground pipeline 120: wiring support device
130: support pillar 131: lower support plate
132: seating plate 133: upper support plate
135: upper rail fixing plate 135a: upper protrusion teeth
140: lower rail portion 141: lower rail groove
143: lower fixed tooth portion 150: lower bogie portion
155: buffer spring 160: pillar fixing means
161: pull cylinder 163: lower rail fixing plate
163a: lower protrusion tooth 170: upper rail portion
171: upper rail groove 173: upper fixing teeth
180: upper bogie 181: support spring
190: tension band 200: power distribution cable

Claims (4)

Underground pipes formed in an empty shape so as to install distribution cables and embedded in the ground; and
It includes a wiring support device is arranged in the longitudinal direction of the underground pipe passage in the interior of the underground pipe passage is installed the distribution cable,
The wiring support device
Support pillars which are erected in the underground pipeline and supported by a plurality of distribution cables so as to be spaced up and down on both sides,
A lower support plate portion having a wider area than the support pillar at a lower portion of the support pillar;
A lower rail part installed below the underground pipe in the width direction of the underground pipe to support the support pillar;
A lower bogie unit which supports the lower support plate part and moves along the lower rail part and is located below the support column so as to correspond to the earthquake by moving the support pillar in the width direction of the underground pipeline when an earthquake occurs;
A buffer spring installed between the lower bogie part and the lower support plate part to cushion the vibration of the earthquake with an elastic force and prevent it from being transmitted to the distribution cable;
When the earthquake vibration of a predetermined size or more is installed in the support pillar occurs, the support pillar is in close contact with the lower rail to fix the movement of the lower bogie and at the same time disable the elastic force of the shock absorbing spring. It includes a pillar fixing means for fixing the pillar to the lower rail,
The pillar fixing means
A pulling cylinder having a cylinder shaft installed in the support pillar and protruding toward the lower rail;
And a lower rail fixing plate coupled to the cylinder shaft to pull and fix the support pillar in a direction in which the lower rail portion is positioned while being maximally compressed by the cushioning spring as the cylinder shaft is pulled from the pulling cylinder. An underground distribution cable wiring facility capable of earthquake protection, characterized in that the. The method of claim 1,
An upper rail part installed on an upper portion of the underground pipe path corresponding to the lower rail part so as to prevent the support pillar from falling, and
Wiring of the underground distribution cable capable of earthquake-resistant protection, characterized in that it comprises an upper bogie portion installed on the upper support pillar to run along the upper rail to move the support pillar in the width direction of the underground pipeline to correspond to an earthquake. facility. The method of claim 2,
The support pillar includes an upper rail fixing plate protruding from a portion corresponding to the upper rail portion,
The upper rail portion
An upper rail groove into which the rail fixing plate is inserted and slidingly moved; and
It includes an upper fixing teeth formed in the inner lower portion of the upper rail groove,
The upper rail fixing plate may include an upper protruding tooth for fixing the position of the support pillar by being caught by the upper fixed tooth portion when the support pillar is pulled to the lower rail portion by the cylinder shaft. Wiring facility for underground distribution cables. The method of claim 1,
The lower rail part
A lower rail groove in which the lower rail fixing plate is inserted and slidingly moved; and
It includes a lower fixing teeth formed on the inner upper portion of the lower rail groove,
The lower rail fixing plate of the earthquake-resistant protection of the underground power distribution cable, characterized in that when the rail fixing plate is pulled by the cylinder shaft, the lower fixing teeth comprises a lower protruding teeth for fixing the position of the support pillar Wiring facilities.

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