KR101318396B1 - Connection bracket of underground electronic line of power distribution - Google Patents

Abstract

PURPOSE: A bracket for connecting an underground distribution line is provided to safely manage an underground distribution line by monitoring the inflow of water. CONSTITUTION: A fixing tube (362) is fixed on a plate (310). A buffer spring (363) is installed on the inner surface of the fixing tube. A platform (300) is composed of a fixture (360). The fixture is composed of a grabber (364). The grabber is fixed to the end of the buffer spring.

Description

Underground cable connection bracket for power distribution {CONNECTION BRACKET OF UNDERGROUND ELECTRONIC LINE OF POWER DISTRIBUTION}

The present invention relates to underground cable connecting brackets for distribution, and more particularly, to underground cable connecting brackets improved to protect the underground wires buried in the ground from electrical safety accidents such as short circuit and fire.

In general, electricity used in each home, office, and large-scale factories is supplied with electricity through substations installed in each region. These substations are installed for the purpose of modifying voltage or current and distributing power. The electricity generated by the company is sent to the customer through the transmission line.

The substation is to be installed on the ground. In the case of such substations, high-voltage electric wires are mostly exposed to the outside, and high-voltage wires exposed to the outside are likely to cause short circuits and short circuits due to external interference. Due to the dizzying hypothesis of high voltage cables, there is a problem such as damaging the surrounding landscape. Therefore, high voltage cables are installed in the ground or underground.

In case of laying high voltage cable in the ground, it is classified into two types. One is to install underground tunnel in the ground and install the shelf inside the tunnel to fix the underground cable and fix the underground cable to the upper side of the shelf. The other method is to bury a protective tube made of concrete or synthetic resin in the ground and place the underground wire inside the buried protective tube.

In both methods, underground cables are installed in a space separated from external contact in the ground. In case of heavy rain or flood, sudden rainwater may flow in. Also, inflow of water due to damage of underground tunnels or protection pipes is uneven. Can occur.

Underground water can be in contact with the water if the drainage of the incoming water by the environment separated from the external contact is not made smoothly, and in severe cases, the underground wire may be submerged.

In the above case, a short circuit may occur due to contact between water and wires, and there may be a problem in which a risk of electric shock may occur.

Korean Patent Registration No. 10-1039358 (2011.05.31.) "Underground wire connection bracket for power distribution" has been disclosed as a technique for improving some of these problems of the prior art.

However, in the case of the registered patent, which is an improved prior art, the structure in which the fixing protrusion repeating the fixing and releasing when the plate rises with water inflow is too tight, is difficult to insert and mutually rises unnecessarily, The disadvantage is that the elasticity structure illustrated by the limit of the elastic modulus and the length of the spring alone does not lead to smooth operation.

The present invention has been proposed to solve the problems of the prior art as described above. When a large amount of water is introduced into the underground tunnel, the underground wire and the water are moved by moving the plate fixing the underground wire in response to the water level change in the underground tunnel. The purpose of the present invention is to provide a distribution line connecting bracket for preventing direct contact and monitoring the level of the underground tunnel by moving the plates at regular intervals.

In addition, another object of the present invention is to provide an underground cable connection bracket for distribution, which prevents malfunction and increases efficiency by smoothly, accurately and easily increasing and fixing the plate.

The present invention is a means for achieving the above object, the support groove 210 is formed on both sides of the fixing groove 211 facing each other and placed in the underground tunnel 100; A pressure sensor 220 positioned inside the fixing groove 211 to detect the fixing protrusion 321 inserted into the fixing groove 211; A support plate 200 composed of a pair of guides 230 placed in parallel with the support shaft 210, and a plate 310 fixedly movable up and down along the support shaft 210 and the guide 230. ); A pair of stoppers 320 installed on the plate 310 to control the insertion and removal of the fixing protrusion 321 to the fixing groove 211 according to an electrical signal; The rotating table 332 rotatably fixed to the plate 310 and the rotating table 332 drawn out of the plate 310 by the rotation shafts 331 disposed on both ends of the plate, respectively. A pair of buoyancy bodies 330 composed of spheres 333 fixed to one end; A pair of switches 340 connected to the other end of the pivoting table 332 to transmit the electrical signal to the stopper 320 and electrically connected in parallel to each other; A spring 350 that emits upwardly the plate 310; A fixed tube 362 that is seated and fixed on the plate 310 so that the underground wire 361 penetrates, a buffer spring 363 installed on an inner surface of the fixed tube 362, and fixed to an end of the buffer spring 363. And including a platform 300, consisting of a fixed body 360 consisting of a gripper (364) surrounding the circumferential surface of the underground wire (361); The fixing groove 211 is continuously formed having a wavy pattern in the longitudinal direction of the support shaft 210, the non-slip member made of silicon on the outer peripheral surface of the support shaft 210 including the fixing groove 211 500 is overlaid, a plurality of dimples 510 are formed on the front surface of the fixing protrusion 321 to have a roughness, and a separate housing 520 is provided on the upper surface of the underground tunnel 100. A wire motor 530 having a pair of rotation shafts 532 protruding and interlocking on both sides is installed inside the enclosure 520, and first and second drums 540 and 542 on the rotation shafts 532 of the wire motor 530. ) Are fixed, and the first and second wires 550 and 552 are wound around the first and second drums 540 and 542, respectively, and the ends of the first and second wires 550 and 552 are respectively bound to the plate 310. Provided are underground cable connecting brackets for distribution.

According to the present invention, it is possible to prevent a short circuit by preventing the underground wires installed in the underground tunnels from directly contacting the water, and to monitor the amount of water flowing in when the water in the underground tunnels flows in response to the amount of water flowing therein. It is possible to take immediate action to manage underground cables more safely.

In particular, it is possible to achieve the effect of achieving a long life by preventing the malfunction by easily changing the structure of the insertion and removal between the fixing projection and the fixing groove.

1 is a ground wire connection bracket for power distribution according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line A-A 'of the underground cable connecting bracket for power distribution according to an embodiment of the present invention.
3A and 3B are operation diagrams illustrating an operation of the underground cable connecting bracket for power distribution according to an embodiment of the present invention.
4 is an exemplary principal cross-sectional view showing a further embodiment according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, embodiments according to the concept of the present invention may be modified in various ways and may have a variety of forms specific embodiments are illustrated in the drawings and will be described in detail herein. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a specific disclosed form and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The present invention uses the previously registered Patent No. 1039358 which will be described later. Therefore, the features of the device configuration described below are all those described in the Patent No. 1039358.

However, the present invention is the most essential configuration of the parts disclosed in the registered Patent No. 1039358 improved to maintain a constant horizontal state at all times regardless of the installation surface of the first and second panels and the first and second cushions Features.

Therefore, the device configuration, features and operation relations described below will be referred to the contents of the Patent No. 1039358 as it is, and will be described in detail with respect to the configuration related to the main features of the present invention at the rear end.

1 and 2, the underground cable connection bracket for power distribution according to an embodiment of the present invention is largely composed of a support 200 and a lift 300.

The support 200 is composed of a support shaft 210, a pair of guides 230, a sensor 220. The support shaft 210 is fixed to the bottom surface of the underground tunnel 100 is entered. A pair of fixing grooves 211 are present on the opposite surface of the support shaft 210, and the fixing grooves 211 are formed in two or more pairs on the opposite surface of the support shaft 210. The guide 230 is placed side by side with a predetermined interval with the support shaft 210 and is coupled to the plate 310 to be movable to control the movement of the plate (310).

The sensor 220 is installed inside the fixing groove 211 and detects the fixing protrusion 321 inserted into the fixing groove 211 according to the movement of the lifting platform 300 to generate an electrical signal. The electrical signal generated by the sensor is transmitted to the outside of the tunnel along the network (not shown).

The electrical signal generated by the sensor is introduced into the underground tunnel 100, and also represents the amount of water introduced. If you want to measure the amount of water introduced more precisely, the fixing groove 211 is more densely arranged so that the lifting platform 300 is more sensitive to changes in the water level. By the sensor 220, the manager of the underground wire 361 may check the amount of water introduced and take measures according to the situation when there is an inflow of water in the underground tunnel 100.

The sensor 220 is a pressure sensor that operates by sensing a pressure contacting a sensor when the fixing protrusion 321 is inserted into the fixing groove 211, and contrast when the fixing protrusion 321 is inserted into the fixing groove 211. When the contrast sensor or the fixing protrusion 321 is inserted into the fixing groove 211 to detect and operate the sensor, it is possible to apply various sensors such as a distance sensor that operates by determining the distance from the fixing protrusion.

The lifting platform 300 includes a plate 310, a stopper 320, a buoyancy body 330, a switch 340, a spring 350, and a fixed body 360.

The plate 310 is movably coupled to the pair of guides 230 and the support shaft 210. The upper surface of the plate 310 is a fixed body 360 for fixing the underground wire 361 is located on the lower surface of the pair of springs 350 are coupled to the ball shot upward 310.

The stopper 320 operates by the switch 340 and moves the fixing protrusion 321 according to the electrical preference of the switch 340. The stopper 320 may be composed of a solenoid or may also be configured in a piston cylinder manner. That is, if the configuration is movable by a signal, it may be an embodiment of the stopper 320. The fixing protrusion 321 is moved to the left and right by the stopper 320, and protrudes to the outside of the stopper 320 until the electrical signal is applied by the stopper 320 by the switch 340 and the fixing groove 211 and When the electrical signal is applied to the stopper 320 by the switch 340, it is momentarily moved into the stopper 320.

As a result, the coupling between the fixing protrusion 321 and the fixing groove 211 is released, and the plate 310 is moved upward by a pair of springs 350 extending upward from the plate 310.

The buoyancy body 330 is composed of a rotating shaft 331, the rotating table 332, the sphere 333. The rotating shaft 331 is fixed to both ends of the plate 310. The rotating table 331 is coupled to the sphere 333 at one end and the first electrode 341 of the switch 340 at the other end. The sphere 333 is empty and can float on the water by buoyancy. When the sphere 333 is moved by the change of the water level, when the first electrode 341 of the switch 340 is moved by the pivoting table 332 which is movably fixed to the rotating shaft 331, and the second electrode 342 is contacted. The switch 340 transmits an electrical signal to the stopper 320.

The switch 340 includes a first electrode 341 and a second electrode 342, and the first electrode 341 is coupled to one end of the pivot table 332 to move in conjunction with the movement of the sphere 333. The second electrode 342 is fixed to the lower surface of the inside of the plate 310. The fixing body for fixing the second electrode 342 is preferably made of an elastic material to accurately and securely contact the first electrode 341 and the second electrode 342. There is a pair of switches 340 and each switch is electrically connected in parallel.

A pair of springs 350 are installed on the lower surface of the plate 310 and the upper surface of the lower portion of the support shaft 310 to emit the plate 310 upward. The plate 310 is always receiving upward force by the spring 350, but maintains the designated position without moving upward by the coupling of the fixing protrusion 321 and the fixing groove 211. However, when the coupling of the fixing protrusion 321 and the fixing groove 211 is released to move to the position of the next fixing groove 211.

The fixed body 360 is composed of a fixed tube 362, a buffer spring 363, the grabper 364, and fixes the underground wire 361. Fixing tube 362 is fixedly installed on the upper surface of the plate 310 and the top is openable in both directions. The operation of fixing the underground wire 361 to the fixed body 360 first opens the upper part of the fixed pipe 362 in both directions, and then seats the underground wire in the gripper 364 and then closes the open upper part, and then joins the coupling means. Combine by using. One end of each gripper 364 is a buffer spring 363 is coupled to the fixed tube 362, the buffer spring 363 is when the water flows into the underground tunnel 100 to move the plate 310 upward The impact received by the underground wires 361 by the change of inertia is alleviated so that the engagement of the underground wires 361 is maintained in a stable sense. In the absence of the buffer spring 363, the inertia force due to the movement 310 of the plate 310 is applied directly to the underground wires 361, so that the ground wires 361 are weakened or, in the severe case, the underground wires 361 are fixed. It may happen that this is released.

3a and 3b is an operation diagram showing the operation of the underground cable connecting bracket for power distribution according to an embodiment of the present invention.

3A is an operation diagram showing the moment when the lifting platform 300 rises due to water flowing into the underground tunnel 100, and FIG. 3B is a state diagram showing the state after the lifting platform 300 is raised.

Referring to Figure 3a and 3b will be described in more detail the operation of the underground cable connection bracket for power distribution according to an embodiment of the present invention.

First, the case where the inflow of water into the underground tunnel 100 is made constant will be described. In this case, the water level inside the underground tunnel 100 rises uniformly. Therefore, the elevated water level moves the sphere 333 in the upward direction, and the first electrode 341 and the second electrode 342 of the switch 340 are brought into contact with each other by the movement of the sphere 333. In this case, an electrical signal is applied to the stopper 320 and the stopper 320 receiving the signal moves the fixing protrusion 321 into the stopper 320.

Due to the movement of the fixing protrusion 321, the coupling of the support shaft 210 and the plate 310 is released, and the plate 310 moves upward by the elastic force of the spring 350. By the movement of the plate 310, the sphere 333 is released from contact with the water surface and the position is moved downward. The movement of the sphere 333 releases the contact between the first electrode 341 and the second electrode 342 of the switch 340, thereby preventing the electrical signal from being applied to the stopper 320. Therefore, the stopper 320 pushes the fixing protrusion 321 outward of the stopper 320. The plate 310, which has been moved in the upward direction by the elastic force of the spring 350, is stopped when the fixing protrusion 321 is coupled to the next fixing groove 211 located in the moving direction. By the above operation, even if water flows into the underground tunnel 100 due to the upward movement of the plate 310, the underground wire 361 is safely protected without contact with water.

Next, a part of the underground tunnel 100 is broken and water flows in one direction, or a large amount of water is suddenly introduced, and thus the operation of water flowing out of one wall instantaneously will be described. Basic operation characteristics are the same as those described above. Therefore, the characteristics of the operation will be described based on the differences.

The buoyancy body 330 is provided one by one at both ends of the plate 310 in the width direction of the underground tunnel (100). When the height of the water surface is not constant at both sides, the water-filled sphere 333 first comes into contact with the water surface and rises as the water surface rises.

That is, when any one of the two spheres 333 positioned in both directions is first raised and the switch 340 is placed in the energized state, an electric signal is applied to the stopper 320 to raise the plate 310. This is because the pair of switches 340 are electrically connected in parallel to each other, and the pair of stoppers 320 receives the same electrical signal from the pair of switches 340.

By the above operation, even when water is constantly introduced into the underground tunnel 100 or biased to one side, the underground cable 361 can be protected from direct contact with water, thereby improving stability of the underground cable 361. To ensure.

In addition, the sensor 220 located on the support 200 can detect the change in the water level according to the rise of the plate 310, so if the water level is dangerous or rises too rapidly, the manager who manages the underground wire 361 Allows you to take the necessary action for your situation.

Further embodiments according to the present invention is configured to prevent the malfunction by more precisely inserting the fixed state between the fixing protrusion 321 and the fixing groove 211 while including the above-described configuration as it is.

In addition, the spring 350 is rusted when submerged in water, and the elastic modulus is not only sharply dropped, but also has a limit in the elasticity length, so that the spring 350 can be controlled more precisely and precisely. It is configured to include more.

First, referring to the malfunction preventing structure, as shown in FIG. 4A, in the additional exemplary embodiment of the present invention, the fixing groove 211 formed in the support shaft 210 has a curvature of a wavy pattern instead of a rectangular groove as shown in the example. We make up with home.

In addition, the curvature groove-shaped fixing groove 211 is made of a continuous structure that is not broken, not an intermittent structure that is broken, as shown in the example.

If it is an intermittent case as in the above-described example, it is difficult to accurately match because of the fineness of the titanium, causing many malfunctions.

However, if it is continuous and curvature-like as in the additional embodiment of the present invention, even if the fixing protrusion 321 is not exactly matched with the fixing groove 211, the sliding position can be found in the correct position.

At this time, the fixing projections 321 may not be able to maintain a fixed state due to the side of the curvature groove.

Therefore, in a further embodiment of the present invention includes a fixing groove 211 on the outer circumferential surface of the support shaft 210 to prevent this, made of a structure that is covered with a non-slip member 500 of the silicon material.

Of course, the fixing groove 211 is provided with a pressure sensor 220 in the same manner as described above, the non-slip member 500 is overlaid thereon.

In addition, a plurality of dimples 510 are formed on the front surface of the fixing protrusion 321 to have roughness.

When configured in this way, the fixing protrusion 321 is able to enter the fixing groove 211 accurately and maintain a fixed state without being easily slipped by the dimples 510 while being engaged with the non-slip member 500. .

On the other hand, as shown in Figure 4 (b), in a further embodiment of the present invention is provided with a separate housing 520 on the upper surface of the underground tunnel 100 to assist the resilience of the spring 350 A kind of winch is provided inside the enclosure 520.

For example, the winch, for example, the wire motor 530 is configured to be interlocked by simultaneously projecting the rotating shaft 532, a pair of first and second drums (540, 542) fixed to the rotating shaft 532 and the first, The first and second wires 550 and 552 are wound around two drums 540 and 542, and the ends thereof are respectively bound to the plate 310.

Thus, when power is applied by the switch 340, the wire motor 530 is driven to wind the first and second drums 540 and 542 simultaneously, and then the first and second wires 550 and 552 are simultaneously wound up by the same distance. The plate 310 is lifted while maintaining a balance.

Therefore, while reducing the load on the spring 350, it is possible to assist in changing the elastic modulus of the spring 350, thereby preventing malfunction.

100: underground tunnel 200: support
300: platform

Claims (1)

Fixing grooves 211 are formed on both sides to face each other and the support shaft 210 is placed in the underground tunnel 100; A pressure sensor 220 positioned inside the fixing groove 211 to detect the fixing protrusion 321 inserted into the fixing groove 211; A support plate 200 composed of a pair of guides 230 placed in parallel with the support shaft 210, and a plate 310 fixedly movable up and down along the support shaft 210 and the guide 230. ); A pair of stoppers 320 installed on the plate 310 to control the insertion and removal of the fixing protrusion 321 to the fixing groove 211 according to an electrical signal; The rotating table 332 rotatably fixed to the plate 310 and the rotating table 332 drawn out of the plate 310 by the rotation shafts 331 disposed on both ends of the plate, respectively. A pair of buoyancy bodies 330 composed of spheres 333 fixed to one end; A pair of switches 340 connected to the other end of the pivoting table 332 to transmit the electrical signal to the stopper 320 and electrically connected in parallel to each other; A spring 350 that emits upwardly the plate 310; A fixed tube 362 that is seated and fixed on the plate 310 so that the underground wire 361 penetrates, a buffer spring 363 installed on an inner surface of the fixed tube 362, and fixed to an end of the buffer spring 363. It includes a platform 300 consisting of a fixed body 360 consisting of a gripper (364) surrounding the circumferential surface of the underground wire (361);
The fixing groove 211 is continuously formed having a wavy pattern in the longitudinal direction of the support shaft 210,
The outer circumferential surface of the support shaft 210 including the fixing groove 211 is covered with a non-slip member 500 made of silicon,
A plurality of dimples 510 are formed on the front surface of the fixing protrusion 321 to have roughness.
The upper surface of the underground tunnel 100 is provided with a separate housing 520,
Inside the enclosure 520 is provided a wire motor 530 having a pair of rotating shafts 532 protruding and interlocking on both sides,
First and second drums 540 and 542 are fixed to the rotation shaft 532 of the wire motor 530, respectively.
First and second wires 550 and 552 are wound around the first and second drums 540 and 542, respectively, and end portions of the first and second wires 550 and 552 are plate 310, respectively. Wire connection bracket.

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