KR101895952B1 - Fixing apparatus of electric power cable with very high voltage in underground manhole - Google Patents

Abstract

The present invention relates to a fixing stand of an underground transmission line for an extra high voltage electric power distribution line. More specifically, the present invention relates to a fixing stand of an underground transmission line for an extra high voltage electric power distribution line which is installed inside a concrete power port embedded in the underground, fixes an underground transmission line distributing extra high voltage electricity and prevents a second body part in a state of being lifted by rotation of a lifting/ lowering gear part from being lowered to an original state according to pressure release to the lifting/lowering gear part, thereby smoothly performing maintenance and repair. The fixing stand of an underground transmission line for an extra high voltage electric power distribution line comprises: a first body part (1100); a plurality of shelves (1200); the lifting/lowering gear part (1300); the second body part (1400); a lifting part (1500); a lifting gear part (1600); and a third body part (1700).

Description

{Fixing apparatus for electric power cable with very high voltage in underground manhole}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground cable fixture for special high-voltage electrical transmission and distribution lines in transmission and distribution technology, and more particularly, to an underground cable fixture installed in an underground concrete power fixture to fix an underground cable, And the second body portion in the state of being lifted by the rotation of the lifting / lowering unit is prevented from being lowered to the original state due to the release of the pressure to the lifting / lowering fisher unit, To a fixing table.

Electricity generated at a voltage of about 20,000V is boosted to ultra high voltage (154 KV or 345 KV) suitable for transmission in a power plant including a thermal power plant, a hydroelectric power plant and a nuclear power plant. The boosted electricity is supplied to a primary substation Is transmitted.

The primary substation lowers the super-high voltage electricity to 22.9 KV, which is the special high voltage, and transmits or distributes the electricity to the general customers along the secondary substations or distribution lines located near the large capacity customers.

The electricity distributed from the primary substation or the secondary substation is transmitted or distributed to the reception facilities of each customer through the transmission and distribution system composed of the processing distribution line and the underground distribution line. The electricity is distributed to the customer through the special high pressure customer, the high pressure customer and various outdoor installation transformers. It is used for industrial and domestic purposes.

There is a way of using the ground and using the ground.

In the transmission and distribution system using the ground, the underground pipe is arranged in the ground so that the gap is kept in the vertical, left and right directions, and a cable or an underground wire is installed to transmit electric power to the hole formed in the underground pipe. Transmits high voltage.

It is difficult to keep the arrangement interval of the underground pipes constant and to keep the arrangement interval of the ground shape constant.

In the prior art, since sand is filled at a predetermined height in the lower part of the ground excavated by using wood plywood, an underground pipe is disposed, a gap between the underground pipes is kept constant by using spacers, and the periphery of the underground pipe is filled with sand, Is completed.

When the installation of the underground pipe is completed, the wooden plywood and the spacer are removed, and the rebuilding is completed.

However, this conventional technique makes it difficult to maintain the position of the underground pipe structure when the slope or groundwater leaks.

As a conventional technique for solving such a problem, Korean Patent Registration No. 10-1145356 (May 17, 2012) discloses a special underground cable fixture dedicated to high-voltage electric power transmission and distribution.

FIG. 1 is a functional block diagram of an underground wire fixing apparatus for an extra high voltage electric power transmission and distribution according to an embodiment of the present invention, FIG. 2 is a sectional view of a protruding plate sealing member according to an embodiment of the prior art, And is installed in and operated on the old block.

The ground wire fixing device for high-voltage electric power transmission and distribution will be described in detail with reference to the attached drawings. The ground wire fixing device for high voltage electric power transmission and distribution includes a built-in power hole block 10 for underground transmission and distribution and a plurality of projection plate sealing portions 13.

The assembled power block (10) for underground transmission and distribution is standardized and mass-produced at the factory, and is generally made to the extent that it can be worked by a wiring worker.

The protruding plate sealing member 13 is a double structure having an outer layer sealing portion 14 made of a resin expanding material and an inner layer sealing portion 15 made of a natural rubber material while the outer layer sealing portion 14 is an integral type The plate 16 is formed in the longitudinal direction and fixed in the space 12 of the joint portion 11 which is generated at the time of assembly of the power socket block.

A protrusion plate sealing member 13 is inserted into a plurality of spaces 12 formed between the underground power transmission and reception assembled power socket block 10 and the underground power transmission and distribution assembled power socket block 10 respectively.

The assembled power hole block 10 for the in-ground power transmission and distribution where the protruding plate sealing member 13 is inserted and the assembled power hole block 10 for underground power transmission and distribution are fastened together with the bolts 17 or the wires 17 '.

Such prior art has the advantage that it is not leaked to the inside of the underground wire fixing device for special high-voltage electric power transmission and distribution, and the size of the inner cavity can be enlarged.

However, the prior art has a problem in that it is not possible to provide a technique for fixing an underground electric wire for special high-voltage electric power transmission and distribution in an underground electric wire fixing device for high-voltage electric power transmission and distribution.

Further, since the second body portion in the state of being lifted and lowered by the rotation of the lifting / lowering gear portion can be lowered to its original state by the self-load in response to the release of the pressure to the lifting / lowering portion, smooth maintenance and repair are difficult to expect.

Korea Patent Registration No. 10-1145356 (2012.05.17.) 'Underground wire fixture for special high voltage electric power transmission and distribution'

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of fixing an underground electric wire, To prevent the second body portion from being lowered to the original state in accordance with the release of the pressure to the lifting / lowering fisherman portion so that maintenance and repair can be smoothly performed .

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above-mentioned object, the present invention is characterized in that a protruding plate sealing member 13 is accommodated in a space of a joining portion 11 generated at the time of assembling the assembled power socket block 10 for underground transmission / 13 has a double structure having an outer layer sealing portion 14 made of a resin expanding material and an inner layer sealing portion 15 made of a natural rubber material while the outer layer sealing portion 14 has an integral plate 16, Is installed in the space of the joint part (11) formed in the longitudinal direction and fixed to the space of the joint part (11) and is made of a concrete body, and a power cable for special high voltage electric power transmission and distribution is installed in the space inside, The first guide hole 1110 and the first guide jaw 1110 are fixed to the inner side wall of the outer block 10, Four first screw holes 1130 are formed in a part of four corners and a first fixing screw 1160 is inserted into the first screw holes 1130 so as to be connected to the underground transmission / A plurality of second threaded holes 1140 are formed in a part of the inner side wall of the assembled power hole block 10 and a first body part 1100 ); A plurality of screw holes to be screwed with the second fixing screw 1170 are formed through the second screw hole 1140 and the assembled power hole block 10 for underground power transmission and distribution is formed on the front surface of the first body part 1100, A bottom plate 1210 fixed in parallel to the bottom of the shelf 1210 and forming a surface parallel to the bottom surface of the underground power transmission and distribution module 10, A plurality of shelves 1200 each having protruding serrations 1220; A first gear 1320 fixed in a state where an axis is aligned with a part of the rotation shaft 1310 and a rotation handle 1310 for rotating the rotation shaft 1310, 1330), and the rotation shaft (1310) is separated from the state of being inserted into the gear hole (1150) by an external force; The first power unit 10 includes a first power unit 10 and a second power unit 11. The power unit 10 includes a first power unit 10 and a second power unit 10, And a second sliding rail 1430 and a second sliding ridge 1440 are formed at a left side end portion of the rail 1410 and a first sliding ridge 1420 respectively. A second body portion 1400 forming a third screw hole 1450 and forming a plurality of fourth screw holes 1460 penetrating the lower right portion; And is screwed to the third fixing screw 1470 through the third screw hole 1450 and fixed to the front surface of the first body part 1100 in parallel with the bottom of the assembled power socket block 10 for underground transmission / A lifting portion 1500 forming a cable receiving surface 1510 and a load supporting surface 1520, respectively; And is fixed to the front surface of the second body part 1400 in the longitudinal direction by a fourth fixing screw 1480 screwed to the fourth screw hole 1460 and has a rectangular shape, A lifting gear portion 1600 forming a gear corresponding to the first gear 1320 and forming a screw hole 1610 through which the fourth fixing screw 1480 passes; And a second body part (1400) installed at one side wall of the inside of the assembled power socket block (10) for submerged power transmission and distribution. The second body part (1400) has a rectangular shape, A plurality of fifth screw holes 1730 are formed in a middle part of the hole 1710 and the second guide step 1720 and a fifth set screw 1740 is inserted into the fifth screw hole 1730 And a third body portion 1700 fastened and fixed to the inner wall of the inner power transmission block assembly 10 for power transmission and distribution. Wherein the lifting gear portion (1600) moves up and down by a rotation and slides in a vertical direction by upward and downward linear movement of the lifting gear portion (1600), wherein the elevating gear portion 1300) The second body part 1400 is prevented from being lowered in the normal state when the second body part 1400 is lifted by the rotation due to the pressurization in response to the release of the pressure to the lifting / lowering part 1300, The fixing part 100 includes a fixing protrusion 110 provided on the front surface of the second body part 1400 so as to be positioned above the lifting gear part 1600; A fixing bar (120) having both ends protruded to both sides of the fixing protrusion (110); The first and second body parts 1100 and 1700 are disposed on both sides of the fixing protrusion 110. The end of the fixing bar 120 passes through the first and second body parts 1100 and 1700, A pair of guide bars 130 on which a plurality of guide bars 131 are formed; And a binding member 140 for binding or unbinding the end of the fixing bar 120 to the pair of guide bars 130. The fixing bar 120 is fixed to the guide bar 130 of the lifting / The second body part 1400 is lifted and lowered while the second body part 1400 is lifted and lowered while the second body part 1400 contacts the upper and lower parts of the guide hole 131, The fixing bar 120 is formed with threads on the outer circumferential surface thereof and the binding member 140 is threaded on the inner circumferential surface thereof and is screwed to both ends of the fixing bar 120. The second body portion 1400 The first and second guide members 130 and 130 are coupled to the guide bar 130 while the guide bar 130 is rotated by the rotation of the first and second guide members 130 and 140, (1400) is prevented from being lowered. To provide underground wire fixtures.

According to the present invention, it is possible to fix underground cables dedicated to high-voltage electric power transmission and distribution lines and to easily perform maintenance of underground cables dedicated to high-voltage electric power transmission and distribution lines.

Also, since the second body portion in the state of being raised and lowered by the rotation of the lifting / lowering unit is prevented from being lowered to the original state due to the release of the pressure to the lifting / lowering unit, maintenance and repair can be smoothly performed.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional block diagram of a conventional underground wire fixing device for high voltage electric power transmission and distribution according to the prior art; FIG.
FIG. 2 is a sectional view of a protruding plate sealing member according to the prior art and an explanatory view of a state where the protruding plate sealing member is installed in a built-in power socket block for underground transmission / distribution.
3 is a perspective view showing an underground cable fixture dedicated to an extra-high voltage electric power transmission and distribution line according to the present invention.
4 is an exploded perspective view showing an underground cable fixture dedicated to an extra-high voltage electric power transmission and distribution line according to the present invention.
FIG. 5 is a state diagram showing a state in which a high-voltage coaxial cable is maintained by an underground cable fixture dedicated to an extra-high voltage transmission and distribution line according to the present invention.
6 is a front view showing a state where a fixing part is provided in a ground wire fixing bar for exclusive high voltage electric power transmission and distribution wire according to the present invention.
And
FIG. 7 is a use state diagram showing an operating state of the fixing unit in FIG.

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

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. And should not be construed as limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein.

It should be understood that the embodiments according to the concept of the present invention are not limited to the particular mode of disclosure but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

Since the present invention uses the previously-described prior art 1145356 as it is, all of the features of the device configuration described below can be understood as those described in the registered patent No. 1145356. [

However, the present invention further includes a structure for preventing the second body portion in the lifted state from being lowered to the original state in response to the release of the pressure to the lifting / lowering portion among the structures disclosed in the above-mentioned Japanese Patent No. 1145356, This is the most essential configuration feature.

Therefore, the device structure, characteristics, and operation relationship described below will be incorporated by reference in the above-mentioned U.S. Patent No. 1,145,356, and the structure related to the main features of the present invention will be described in detail at the rear end.

1 to 5, an underground cable fixture (hereinafter referred to as " underground cable fixture ") 1000 for an extra high voltage electric power transmission and distribution line according to the present invention includes a built- Fix the extra high voltage coaxial cable (2000) installed on the wall.

Also, the underground cable fixture 1000 can lift and maintain a part of the special high-voltage coaxial cable 2000 in the inside of the assembled power socket block 10 for underground transmission and distribution.

The underground cable fixture 1000 includes a first body part 1100, a shelf part 1200, an elevating and lowering part 1300, a second body part 1400, a lifting part 1500, a lifting gear part 1600, 3 body portion 1700 as shown in FIG.

The first body part 1100 has a rectangular shape and is fixed to the inner side wall of the built-in power socket block 10 in the longitudinal direction up and down. The first body part 1100 includes a first guide hole 1110, 1120, a first screw hole 1130, a second screw hole 1140, a gear hole 1150, a first fixing screw 1160, and a second fixing screw 1170.

The first guide hole 1110 is formed at the left end of the first body part 1100 while being formed at a portion where the first body part 1100 is in contact with the assembled power hole block 10 for underground transmission / 2 The right side of the body portion 1400 is supported so as not to deviate from the predetermined trajectory.

The first guide protrusion 1120 is formed on the left end of the first body part 1100 while being formed at a portion where the first body part 1100 is in contact with the assembling power block 10 for underground transmission / 2, the right side of the body portion 1400 smoothly slides up and down along a predetermined trajectory.

The first threaded hole 1130 is formed through a part of four corners of the first body part 1100 having a rectangular shape.

Since the first fixing screw 1160 penetrates through the four first screw holes 1130 and is fixed to the wall surface of the assembled power hole block 10 for underground power transmission and distribution, (10).

Four second holes 1140 may be formed in the center of the first body part 1100 having a rectangular shape and a second fixing screw 1170 may be inserted.

The gear hole 1150 is formed at a lower left portion of the first body portion 1100 having a rectangular shape.

The shelf unit 1200 has a plurality of screw holes formed in a portion not shown in the figure and includes a second set screw 1170 inserted from the rear surface of the first body unit 1100 at the front surface of the first body unit 1100, So that it is fixed to the front surface of the first body part 1100.

The shelf unit 1200 is fixedly installed parallel to the bottom of the assembled power socket block 10 for underground transmission / distribution, and the plurality of shelf units 1200 are installed parallel to each other.

The shelf unit 1200 includes a shelf bottom 1210 forming a plane parallel to the bottom surface of the submerged power transmission block 10, a shelf bottom 1210 formed at right angles to the shelf bottom 1210, 1220).

The lifting and lowering unit 1300 includes a rotating shaft 1310, a first gear 1320 and a rotating knob 1330 for sliding the second body part 1400 in the up or down direction by rotation .

The rotation shaft 1310 may be inserted into and fixed to the gear hole 1150 by an external force or may be separated from the gear hole 1150 by an external force.

When the rotation shaft 1310 is inserted into the gear hole 1150, the rotation shaft 1310 can rotate around the central axis.

The first gear 1320 has a disk shape of a constant thickness and forms a gear on the outer peripheral surface of the disk.

The first gear 1320 is installed at a part of the rotating shaft 1310 and has the same central axis as the central axis of the rotating shaft 1310.

The rotary knob 1330 has a base shape and is connected to the rotary shaft 1310 to transmit a rotational driving force externally applied to the rotary shaft 1310.

The second body portion 1400 has a rectangular shape and is installed at a left side of the first body portion at one inner side wall surface of the assembled power socket block 10 for underground power transmission and distribution.

The second body part 1400 is installed in the longitudinal direction of the upper and lower parts and can be slid in the up and down directions.

The second body portion 1400 includes a first sliding rail 1410, a first sliding ridge 1420, a second sliding rail 1430, a second sliding ridge 1440, a third screw hole 1450, And a screw hole 1460.

The first sliding rail 1410 is formed at the right end portion of the second body portion 1400 and protrudes from a portion where the second body portion 1400 is in contact with the assembled power socket block 10 for underground transmission and distribution, Smoothly slides the predetermined orbit in the upward or downward direction along the first guide step 1120 of the body part 1100.

The first sliding jaw 1420 is formed at a right end portion of the second body portion 1400 and is a portion where the first sliding rail 1410 starts and supports the second body portion 1400 so as not to deviate from the predetermined orbit .

The second sliding rail 1430 is formed at the left end portion of the second body portion 1400 and protrudes from a portion where the second body portion 1400 is in contact with the assembled power socket block 10 for underground transmission and distribution, And smoothly slides the predetermined orbit in the up or down direction along the second guide step 1720 of the body part 1700.

The second sliding protrusion 1440 is formed at the left end of the second body 1400 and supports the second sliding rail 1430 and the second body 1400 so as not to deviate from the predetermined orbit .

Four third screw holes 1450 may be formed in the center portion of the second body portion 1400 and four third fixing screws 1470 may be inserted into the third screw hole 1450 from the rear side.

Fourth screw holes 1460 are formed in the lower right portion of the second body portion 1400 to form threads.

The lifting unit 1500 includes a plurality of threaded holes formed in a portion not shown in the drawing and a plurality of third fixing screws 1470 inserted from the rear surface of the second body portion 1400 at the front surface of the second body portion 1400 So that it is fixed to the front surface of the second body part 1400.

The lifting part 1500 is fixedly installed in parallel with the bottom of the built-in power socket block 10 for underground transmission / distribution, and the plurality of lifting parts 1500 are installed parallel to each other.

The lifting unit 1500 includes a cable supporting surface 1510 forming a surface parallel to the bottom surface of the submerged power transmission block 10, a load supporting surface 1520 supporting the cable supporting surface while forming an inclined surface, Respectively.

The lifting gear portion 1600 has a plurality of gears formed on a straight side surface of the right end portion of the lifting gear portion 1600. The formed gear is in contact with the first gear 1320 and receives an external force due to the driving of the lifting gear portion 1300 .

A plurality of fourth fixing screws 1480 are inserted into the lifting gear portion 1600 through a plurality of screw holes 1610 and the fourth fixing screws 1480 are screwed into the threaded portions formed in the fourth screw holes 1460 The second body portion 1400 is fixed to the lower right of the front of the second body portion 1400. [

The third body part 1700 has a rectangular shape and is fixed to the one side wall of the built-in power socket block 10 for the submerged power transmission and distribution in the longitudinal direction in the up and down direction. The third body part 1700 includes a second guide hole 1710, 1720, and a plurality of fifth screw holes 1730.

The second guide hole 1710 is formed at a portion on the right side of the third body portion 1700 while being formed at a portion where the third body portion 1700 is in contact with the assembling power block 10 for underground transmission / 2 so that the left side of the body portion 1400 does not deviate from the predetermined trajectory.

The second guide jaw 1720 is formed at a portion on the right side of the third body portion 1700 while being formed at a portion where the third body portion 1700 is in contact with the assembling power block 10 for underground transmission / 2 so that the left side of the body portion 1400 smoothly slides up and down along a predetermined trajectory.

The plurality of fifth screw holes 1730 are fixed to one side of the assembled power socket block 10 for underground transmission and distribution by inserting a plurality of fifth fixing screws 1740 into the third body portion 1700, And is fixedly installed on one side of the assembled power socket block 10.

When the external force is applied to the lifting gear 1300, the first gear 1320 transmits an external force to the lifting gear 1600 to move the lifting gear 1600 in the up and down directions.

The second body portion 1400 slides in the up and down direction by the up and down movement of the lifting gear portion 1600. [

At this time, the second body portion 1400 smoothly slides up and down by the first guide protrusion 1120 and the second guide protrusion 1720.

Since the second body part 1400 slides in the upward and downward directions, the lifting part 1500 slides together in the upward and downward directions.

The shelf part 1200 and the lifting part 1500 have the advantage of minimizing the risk due to electric shock, short-circuit and short-circuit by fixing a plurality of extra high-voltage coaxial cables 2000 in the assembled power socket block 10 for underground transmission and distribution have.

The extra high-voltage coaxial cable 2000 fixed on the shelf 1200 and the lifting unit 1500 is partially moved in the upward and downward directions to provide clearance, thereby ensuring a space for the operator to perform maintenance.

In the present invention, as shown in Figs. 6 to 7, while the second body part 1400 is lifted and lowered by artificial pushing to the lifting / lowering part 1300, the lifting / lowering part 1300 in accordance with the second embodiment of the present invention, the second body portion 1400 can be prevented from being undesirably lifted.

The fixing part 100 prevents the second body part 1400 in the state of being lifted and lowered by the rotation of the lifting and lowering unit 1300 from being lowered to its original state due to its own load or the like in response to releasing the pressure to the lifting and lowering unit 1300 .

Accordingly, the fixing part 100 can maintain the gap generated by moving the part of the special high-voltage coaxial cable 2000 in the upward direction, thereby making maintenance and repair smooth.

The fixing part 100 includes a fixing protrusion 110 provided on the front surface of the second body part 1400 so as to be positioned on the upper side of the lifting gear part 1600, The fixing bar 120 is provided on the first and third body parts 1100 and 1700 so as to be positioned on both sides of the fixing protrusion 110. The end part of the fixing bar 120 passes, And a binding member 140 for binding or unbinding an end portion of the fixing bar 120 to or from the pair of guide bars 130. [

The fixing protrusion 110 protrudes forward from the front surface of the second body part 1400 so as to be positioned below the lifting part 1500 and a hollow 111 penetrating through both sides is formed.

The fixing bar 120 can be supported by the fixing protrusion 110 while being inserted into the hollow 111, and a thread is formed on the outer circumferential surface.

The fixing unit 100 further includes a pair of pressing members 150 that are screwed to the fixing bars 120 and are coupled to the fixing protrusions 110 so as to be positioned on both sides of the fixing protrusions 110 can do.

The pressing member 150 may be formed of a nut or the like having a thread on the inner circumferential surface and is pressed in the direction of the fixing protrusion 110 so that the fixing bar 120 is stably fixed to the fixing protrusion 110.

The pressing member 150 is screwed to the fixing bar 120 so that the fixing bar 120 can be attached to the second body part 1400 without interfering with the connection between the first, second, and third body parts 1100, 1400, So that it is possible to easily install the apparatus.

The guide bars 130 extend in the vertical direction and are provided in the third body part 1700 and the first body part 1100 so as to be opposed to each other in the left and right direction.

The guiding hole 131 penetrates both sides of the guide bar 130 while allowing the end of the securing bar 120 to pass therethrough while guiding the lifting and lowering of the securing bar 120 while extending in the vertical direction.

That is, the fixed bar 120 is lifted and lowered together with the second body part 1400 in accordance with the rotation of the lifting and lowering part 1300, while the upper and lower parts of the second body part 1400, (1400) is stopped.

The fixing unit 100 may further include a buffer member 160 provided on upper and lower portions of the guide hole 131.

The cushioning member 160 may be made of silicone or rubber and prevents abrasion due to contact between the fixing bar and the circumference of the guide hole 131.

The binding member 140 may be a nut or the like having a thread formed on the inner circumferential surface thereof and is screwed to both ends of the fixing bar 120 so as to be positioned outside the pair of guide bars 130.

The binding member 140 moves to the guide bar 130 by artificially rotating the second body part 1400 in a state of being lifted up and presses the guide bar 130 while pushing the fixing bar 120 to the guide bar 130 The lowering of the second body part 1400 due to the release of the pressure to the lifting and lowering part 1300 is prevented.

In contrast, the binding member 140 moves in a direction opposite to the guide bar 130 by artificial rotation to release the binding of the fixing bar 120, and the second body part 1400) is lowered.

The fixing part 100 may further include a separation prevention cap 170 provided at both ends of the fixing bar 120 to prevent the separation of the binding member 140.

The fixing part 100 may further include an elastic member 180 coupled to the outside of the fixing bar 120 so as to be positioned between the separation preventing cap 170 and the binding member 140.

The elastic member 180 may be a spring and the binding member 140 is pressed by the guide bar 130 to prevent the binding member 140 from being loosened.

The second body part 1400 is lifted and lowered by rotation of the second body part 1400 by artificially pressing against the lifting and lowering part 1300. As a result, The coaxial cable 2000 can be prevented from being undesirably lowered, thereby maintaining a gap generated by moving a portion of the extra high-voltage coaxial cable 2000 in an upward direction, thereby making maintenance and repair smooth.

1000: underground cable fixing table 1100: first body part
1200: shelf part 1300: lifting and lowering fisher
1400: second body part 1500: lifting part
1600: lifting gear portion 1700: third body portion
100: Fixing portion 110: Fixing projection
111: hollow 120: fixed bar
130: guide bar 131: guide ball
140: binding member 150:
160: buffer member

Claims (1)

The protruding plate sealing member 13 is received in the space of the joint portion 11 generated at the time of assembling the assembled power outlet block 10 for underground power transmission and distribution while the protruding plate sealing member 13 is made of a resin- (14) and an inner layer sealing part (15) formed of a natural rubber material, while the outer layer sealing part (14) has a double structure in which an integral plate (16) And a concrete body, and a power cable for high-voltage electric power transmission and distribution is installed in the space inside the joint part 11,
A first guide hole 1110 and a first guide protrusion 1120 are fixed to the inner side wall of the in-ground power transmission / distribution block 10 in the longitudinal direction, And four first screw holes 1130 are formed in the four corners of the four corners. The first screw holes 1130 are inserted into the first and second fixing screws 1160, A first body portion 1100 fastened and fixed to the inner side wall of the body 10 and forming a plurality of second threaded holes 1140 at a portion thereof and forming a gear hole 1150 at a lower left portion thereof;
A plurality of screw holes to be screwed with the second fixing screw 1170 are formed through the second screw hole 1140 and the assembled power hole block 10 for underground power transmission and distribution is formed on the front surface of the first body part 1100, A bottom plate 1210 fixed in parallel to the bottom of the shelf 1210 and forming a surface parallel to the bottom surface of the underground power transmission and distribution module 10, A plurality of shelves 1200 each having protruding serrations 1220;
A first gear 1320 fixed in a state where an axis is aligned with a part of the rotation shaft 1310 and a rotation handle 1310 for rotating the rotation shaft 1310, 1330), and the rotation shaft (1310) is separated from the state of being inserted into the gear hole (1150) by an external force;
The first power unit 10 includes a first power unit 10 and a second power unit 11. The power unit 10 includes a first power unit 10 and a second power unit 10, And a second sliding rail 1430 and a second sliding ridge 1440 are formed at a left side end portion of the rail 1410 and a first sliding ridge 1420 respectively. A second body portion 1400 forming a third screw hole 1450 and forming a plurality of fourth screw holes 1460 penetrating the lower right portion;
And is screwed to the third fixing screw 1470 through the third screw hole 1450 and fixed to the front surface of the first body part 1100 in parallel with the bottom of the assembled power socket block 10 for underground transmission / A lifting portion 1500 forming a cable receiving surface 1510 and a load supporting surface 1520, respectively;
And is fixed to the front surface of the second body part 1400 in the longitudinal direction by a fourth fixing screw 1480 screwed to the fourth screw hole 1460 and has a rectangular shape, A lifting gear portion 1600 forming a gear corresponding to the first gear 1320 and forming a screw hole 1610 through which the fourth fixing screw 1480 passes; And
A second body portion 1400 provided on one side wall of the inside of the assembled power socket 10 for underground transmission and distribution is fixed in a longitudinal direction up and down and has a rectangular shape and has a second guide hole And a fifth screw hole 1730 is formed in a part of the fifth screw hole 1730 and a fifth fixing screw 1740 is inserted into the fifth screw hole 1730, And a third body part (1700) fastened and fixed to the inner side wall of the built-in power socket block (10) for underground transmission / distribution,
The second body part (1400)
The lifting gear portion 1600 is moved up and down linearly by the rotation of the lifting gear portion 1300 and slides in the vertical direction by the upward and downward movement of the lifting gear portion 1600, In this case,
When the second body part 1400 is lifted by the rotation of the lifting / lowering part 1300, the second body part 1400 is returned to the original state in response to the release of the pressure to the lifting / lowering part 1300 Further comprising a fixing part (100) for preventing the lowering part from falling,
The fixing part (100)
A fixing protrusion 110 provided on a front surface of the second body part 1400 so as to be positioned above the lifting gear part 1600;
A fixing bar (120) having both ends protruded on both sides of the fixing protrusion (110) and forming a thread on the outer peripheral surface;
The first and second body parts 1100 and 1700 are disposed on both sides of the fixing protrusion 110. The end of the fixing bar 120 passes through the first and second body parts 1100 and 1700, A pair of guide bars 130 on which a plurality of guide bars 131 are formed;
A binding member 140 for binding or unbinding an end of the fixing bar 120 to the pair of guide bars 130;
A pair of pressing members 150 (not shown) for screwing the fixing bar 120 and fixing the fixing bar 120 to the fixing protrusions 110 so as to be positioned on both sides of the fixing protrusions 110, );
A cushioning member 160 provided on the upper and lower sides of the guide hole 131;
A separation prevention cap 170 provided at both ends of the fixing bar 120 to prevent the binding member 140 from being separated; And
And the elastic member 140 is coupled to the outer side of the fixing bar 120 to be positioned between the separation preventing cap 170 and the binding member 140 so that the binding member 140 is elastically deformed by the guide bar 130, Member 180,
The fixing bar (120)
The second body part 1400 is lifted and lowered along with the rotation of the lifting and lowering part 1300 while the second body part 1400 contacts the upper and lower parts of the guide hole 131, Up and down stops,
The binding member (140)
The first and second body portions 1400 and 1400 are fixed to the fixing bar 120 by pressing the guide bar 130 by rotation in a state where the second body portion 1400 is lifted and lowered, ) Is coupled to the guide bar (130) to prevent the lowering of the second body part (1400) due to the release of the pressure to the lifting / lowering part (1300) Fixing board.

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