KR101444886B1 - Droop prevention device for preventing deflection of overhead distribution line - Google Patents

Abstract

The present invention relates to a droop prevention device for preventing the deflection of an overhead distribution line. The droop prevention device for preventing the deflection of an overhead distribution line according to one embodiment of the present invention includes a fixing unit (10); a rack (20) installed at the fixing unit; a first pinion (30) connected to the rack (20); a reciprocating transfer member (40) combined with a first pinion (30); a temperature sensor (50) installed at the fixing unit (10); a control part (60) outputting a signal to a driving motor (70); a driving motor (70) rotating a second pinion (71); and a worktable assembly (80) having a stopper (83).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a droop prevention device for preventing deflection of an overhead distribution line,

The present invention can prevent the machining distribution line from being sagged or contracted due to a temperature change and thus be released from the insulator and can be prevented from being broken before the work, And a sag preventing device capable of preventing sagging of a processing distribution line that can greatly improve the convenience of the work.

Generally, large power generated in a power plant is transmitted to each substation with high-voltage power through a transmission line such as a power transmission tower, and then transformed at various stages in a substation, so that it can be used in a home or a building And the distribution process that will be supplied to each region.

At this time, the power supply to the general customer is supplied through a telephone pole installed at regular intervals, and the processing power distribution line in each telephone pole is connected by using a jumper wire.

That is, the working distribution line to be connected to the telephone pole is connected to both sides of the upper and lower sides of the upper portion of the main body through insulators, and the jumper wires are connected to each other through jumper wires. It was constructed and used so that it can be supported by the insulator.

Korean Patent Registration No. 10-0989444 discloses a conventional technique. The brief description of the technique is as follows. That is, there is provided an earphone which is horizontally mounted on a side portion of a body of a telephone main body, and a plurality of insulators are mounted on an upper side or a lower side of the earpiece , And a jumper wire is fixed on the upper side of the insulator to insulate the transmission / distribution line and the ground.

In the case of the above-mentioned conventional technology, there is an advantage that the working wire can be connected very easily, but the connection part is separated or broken due to sagging or expansion of the processing power distribution line due to temperature change such as summer or winter, There is a problem that it is difficult to protect the operator from the crash due to the electrocution and the complaints due to the residual current which is occasionally caused by the worker moving up while the electricity is cut off. .

Further, when the insulator or the processing distribution line or the jumper wire is to be repaired or replaced, it is necessary to carry out the work in a state in which the operator carries the separate equipment and tools, which makes the work troublesome and inconvenient.

The present invention can prevent the machining distribution line from being sagged or contracted due to a temperature change and thus be released from the insulator and can be prevented from being broken before the work, Which is capable of preventing the shedding of the processing distribution line, which can greatly improve the convenience of the apparatus.

According to an aspect of the present invention,

And a guide hole penetrating horizontally on one side and formed with a protrusion on an inner circumferential surface thereof,

A rack movably installed between the mounts via a guide member;

A first pinion having a left screw tab and a right screw tab mutually opposed to each other on the inner circumferential surface and arranged between the guide grooves of the mounting table and rotated in engagement with the rack,

An insulator for fixing the machining distribution line, and a threaded portion having an engaging groove formed along the longitudinal direction and having a left helix or a right helix on the outer circumferential surface, inserted into a protruding portion of the guide groove and engaged with the first pinion, A reciprocating conveying member whose length is adjusted by rotation:

Temperature sensor installed on mounting base to measure ambient temperature and output measured temperature value:

A control unit for receiving a temperature value from a temperature sensor and outputting a normal /

A driving motor provided on the mounting table for receiving a forward / reverse rotation signal from the control unit and forcedly rotating the second pinion forward and backward;

A connecting rod having a cross-sectional shape, which is disposed in parallel to the upper surface of the mounting table so as to be spaced apart from each other by fixing means and interconnecting the mounting tables; A guide portion formed on a lower surface of the upper surface and movably fitted in the linkage portion; a stopper inner portion formed between the guide portions and into which the stopper is inserted; a guide portion formed on the inner surface of the stopper guide portion, A work table having projecting pieces for guiding the projecting pieces; And a stopper which has a guide piece to be inserted into the projecting piece and which is inserted into the stopper holding portion of the work material to restrict the reciprocating movement of the work table.

According to this embodiment, the first pinion and the reciprocating transfer member having the machining distribution line fixed to the end thereof are provided on the mounting table, and a temperature sensor for controlling the length by the first pinion, a control unit, and a drive motor It is possible to prevent the processing power distribution line from being sagged or contracted due to the temperature change and being separated from the insulator and can be prevented from being broken beforehand. Further, since the structure is relatively simple, it is easy to assemble, .

In addition, according to the present embodiment, it is possible to store equipment and tools necessary for maintenance and replacement on the workbench, so that it is very easy to store, and in particular, the equipment and tools mounted on the workbench can be easily moved There is an advantage that the work can be done conveniently because the worker can work in one place without moving.

In addition, according to the present embodiment, when the work table moves along the connection block and is disposed on the upper surface of the mounting table, the stopper installed at the lower portion of the work table is naturally pressed by the mounting table to lift the work table upward, The connecting rod and the guide rod are in surface contact with each other and are not moved any more, so that the problem of detaching the working rod from the connecting rod can be solved.

1 to 3 are an assembled perspective view, an exploded perspective view and a plan view of a sag preventing device capable of preventing elongation of a processing distribution line according to the present invention.
FIGS. 4 to 6 are a bottom exploded perspective view, a front sectional view and a side sectional view, respectively, of a work table assembly extracted from a sag preventing device capable of preventing elongation of a processing distribution line according to the present invention.
Fig. 7 is a block diagram showing the interrelationship between respective components in a sag preventing device capable of preventing elongation of a processing distribution line according to the present invention; Fig.
8A and 8B are diagrams for explaining an operation relationship of a sag preventing device capable of preventing elongation of a processing distribution line according to the present invention.

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

1 to 3 are an exploded perspective view and an exploded perspective view and a plan view, respectively, of a sag preventing device capable of preventing elongation of a processing distribution line according to the present invention. Figs. 4 to 6 are views And FIG. 7 is a cross-sectional view showing a cross-sectional view of the workpiece assembly according to the present invention. FIG. 7 is a cross-sectional view of the workpiece assembly shown in FIG. 8A and 8B are diagrams for explaining the operation of the sag preventing device capable of preventing slack of the processing distribution line according to the present invention.

Referring to FIG. 1, the deflection preventing device of the present invention according to an embodiment includes a mounting base 10, a rack 20, a first pinion 30, a reciprocating conveying member 40, a temperature sensor 50, A control unit 60, a drive motor 70 and a work platform assembly 80. This prevents slack of the processing power distribution line L, It is possible to greatly improve the convenience of the operation.

1 to 3, the mounting table 10 is a tube having a rectangular shape as a whole, and is fixedly installed in parallel with the upper end of the main body 1 in the present embodiment.

In particular, a guide hole 11 horizontally penetrating is formed at one end of the mounting table 40, and a protruding portion 11a protruding inward is integrally formed on the inner circumferential surface of the guide hole 11. [

Here, a reciprocating transfer member 40 to be described later is movably inserted into the inner circumferential surface of the guide hole 11, and the protrusion 11a of the guide hole 11 and the engaging groove 42a of the reciprocating transfer member 40 ).

According to this embodiment, the first pinion 30 is rotated by the rack 20. At this time, the protrusion 11a and the coupling groove 42a of the reciprocating transfer member 40 are coupled to each other, It is possible to prevent the problem that the machining distribution line L fixed to the insulator 41 is twisted due to movement along the projection 11a of the hole 11. [

1 to 3, the rack 20 is movably installed between the mounting tables 10 via a guide member G.

Here, the rack 20 has a rectangular shape as a whole and has teeth on its upper surface. In particular, both ends of the rack 20 in the longitudinal direction are inserted into the guide member G and slide.

The guide member G has a generally U-shaped configuration and is fixed by a method such as welding or bolting in a state where the guide member G is engaged with the rack 20 between the mounting brackets 10.

1 to 3, the first pinion 30 is disposed between the guide holes 11 of the mounting table 10 and rotates in engagement with the rack 20.

The first pinion 30 has a generally cylindrical shape and is formed with the same teeth so as to be rotatable with the rack 20 on the outer circumferential surface. The first pinion 30 has a left screw tab 30a and a right screw tab 30a, (30b) is formed.

The left screw tab 30a and the right screw tab 30b are opposed to each other on the inner circumferential surface of the first pinion 30. The left screw tab 30a and the right screw tab 30b are provided with a mounting table 10 are respectively fastened to the reciprocating conveyance member 40 passing through the guide holes 11 of the guide members 11,

The first pinion 30 engaged with the rack 20 is rotated in the counterclockwise direction when the rack 20 is moved toward the telephone pole 1. At this time, The reciprocating transfer member 40 fastened to the screw tab 30a and the right screw tab 30b is moved toward the center of the first pinion 30 and pulls the processing power distribution line L fixed to the insulator 41 do.

Conversely, when the rack 20 protrudes in the direction opposite to the mainsheet 1, the first pinion 30 engaged with the rack 20 rotates in the clockwise direction, whereby the reciprocating conveyance member 40 rotates outwardly The processing power distribution line L is relaxed.

1 to 3, the reciprocating transfer member 40 is composed of an insulator 41 and a threaded portion 42. In this embodiment, the protrusion 11a of the guide hole 11 of the mounting base 10 And the length of the first pinion 30 is adjusted by rotating the first pinion 30 in the forward and reverse directions, thereby functioning to tension and relax the processing power distribution line L.

A machining distribution line L is fixed to the insulator 41 and the machining distribution line L is electrically connected to the opposite machining distribution line L via a jumper line L '.

The threaded portion 42 is a known bolt having a left or right helical line formed on the outer circumferential surface so as to be fastened to the left screw tab 30a and the right screw tab 30b formed on the inner peripheral surface of the first pinion 30. [

An engagement groove 42a corresponding to the projection 11a is formed in the threaded portion 42 along the longitudinal direction so as to be movably coupled to the projection 11a of the guide hole 11. [

1 to 3 and 7, a temperature sensor 50, a controller 60, and a driving motor 70 are installed on the mounting table 10 and will be described in more detail below.

A temperature sensor 50 is provided on the upper surface of the mounting table 10. The temperature sensor 50 measures the external temperature in real time and outputs the measured value to the controller 60. The controller 60 Receives the measured value from the temperature sensor 50, determines the forward rotation or the reverse rotation of the drive motor 70, and outputs an operation signal to the drive motor 70.

The driving motor 70 forcibly rotates the second pinion 71 fixed to the motor shaft (not shown) by the forward rotation or the reverse rotation signal outputted from the control unit 60 so as to rotate along the guide member G So that the rack 20 is moved forward and backward.

1 to 6, the work bench assembly 80 includes a connecting rod 81, a work table 82, and a stopper 83. In this embodiment, the work table assembly 80 is installed on the mounting table 10, And the like are moved and moved.

In the present embodiment, the connecting rod 81 has a cross-sectional shape. In this embodiment, the connecting rod 81 is disposed on the upper surface of the mounting rod 10 so as to be spaced apart from each other by fixing means B, It functions to interconnect.

Since the connecting rod 81 has a cross-sectional shape, it is possible to move the work station 82 when the work station 82 is coupled to the connecting rod 81, Even when the equipment and tools are needed, it is possible to solve the problem of dropping down.

In addition, the connecting rod 81 is preferably formed of an insulating material.

In the case of this embodiment, although the linkage 81 is shown and described as having a cross-sectional shape, this is only one embodiment, and the shape thereof can be changed as needed.

The work table 82 is an enclosure having its interior opened upward. In the case of the present embodiment, the work table 82 is movably coupled to the connection table 81 and carries equipment and tools necessary for maintenance replacement.

The work table (82) is fixed on a connecting base (81) via a stopper (83).

In particular, the work table 82 is formed in a rectangular parallelepiped shape, and an upper portion of the upper surface of the work table 82 is opened upward to accommodate a receiving portion 82a for receiving equipment and tools necessary for maintenance and replacement, A stopper holding portion 82c is formed between the guide portions 82b and opened downward so that the stopper 83 can be inserted inwardly between the guide portions 82b. The inner surface of the holding portion 82c is composed of a projecting piece 82d protruding to face each other to catch and guide the stopper 83.

According to the present embodiment, equipment and tools necessary for maintenance and replacement can be mounted on the work table 82, which makes it possible to store the equipment and tools mounted on the work table 82, (10), it is advantageous that the work can be done conveniently because the worker can perform the work in one place without moving.

The stopper 83 is a leaf spring having guide pieces 83a at both ends thereof and is inserted into the stopper holding portion 82c in the case of the present embodiment and is movable between the projecting pieces 82d via the guide piece 83a And serves to limit the movement of the work table 82.

In the case of the work table 82, the work table 82 can be moved along the connection table 81. However, when the work table 82 is moved to both ends of the connection table 81, the work table 82 can be dropped from the connection table 81.

In this embodiment, the stopper 83, which is a plate spring, is disposed under the work table 82 to solve the above-described problem.

Thus, according to the present embodiment, when the work table 82 is moved along the connection table 81 and disposed on the upper surface of the mount table 10, the stopper 83 provided at the lower portion of the work table 82 is mounted on the mount table 10 So that the work table 82 does not move any further since the connecting table 81 and the guide portion 82b are in surface contact with each other so that the work table 82 is lifted up by the work table 82, It is possible to solve the problem that the connecting rod 81 is separated from the connecting rod 81.

The operation of the present invention having the above-described configuration will now be described.

First, the installation process will be briefly described. A pair of mounting brackets 10 are installed side by side on the upper surface of the main body 1.

When the first pinion 30 is disposed between the pair of mounting brackets 10 and the reciprocating transfer member 40 is inserted through the guide hole 11 of the mounting bracket 10, To be coupled to each other.

A rack 20 is then provided between the mounts 10 via a guide member G so that the first pinion 30 and the second pinion 71 disposed between the mounts 10 Let it fit.

After the installation as described above, a work table assembly 80 is installed. First, a pair of connection tables 81 are fixed to the upper surface of the mounting table 10 by spacing apart from each other through fixing means B, And the work table 82 is movably coupled to the connection block 81 via the guide portion 82b.

The stopper 83 is inserted into the stopper holding portion 82c of the work table 82 and the guide piece 83a is inserted into the protruding piece 82c, So that the entire installation is completed.

In the case of spring and fall in which temperature changes are extremely small, since the length of the processing distribution line L is small, as shown in Fig. 1, the processing distribution line L is maintained in a stable state, When the temperature rises as in summer, the machining distribution line L sags and sags so that a large force is applied to the insulator 41. Therefore, the insulator 41 and the machining distribution line L ), It is necessary to pull the machining distribution line L to maintain the tension state.

The temperature sensor 50 provided on the mounting table 10 measures the external temperature in real time and outputs the measured value to the controller 60. The controller 60 controls the temperature sensor 50, And receives the measured value in real time to determine the current external temperature state, and outputs the reverse rotation operation signal to the drive motor 70. [

The second pinion 71 fixed to the motor shaft (not shown) is forcibly rotated to rotate the rack (not shown) The first pinion 30 engaged with the upper surface of the rack 20 is rotated in the reverse direction by the rack 20 moved toward the telephone pole 1. [

Accordingly, when the first pinion 30 rotates counterclockwise, the reciprocating transfer member 40 fastened to the inner circumferential surface of the first pinion 30 moves toward the inner center of the first pinion 30 And the machining distribution line L fixed to the insulator 41 is also pulled by the reciprocating transfer member 40 to be kept in a tense state so that deflection phenomenon of the machining distribution line L can be prevented, 8A.

On the other hand, on the contrary, in winter, the processing distribution line L shrinks and its length is shortened to be in a taut state. When the temperature becomes low as in winter, the processing distribution line L tries to leave the insulator 41 due to contraction It is necessary to allow the machining distribution line L to relax to some extent.

The temperature sensor 50 provided on the mounting table 10 measures the external temperature in real time and outputs the measured value to the controller 60. The controller 60 controls the temperature sensor 50, And receives the measured value in real time to determine the current external temperature state.

Then, the control unit 60 outputs a forward rotation operation signal to the drive motor 70.

Accordingly, the drive motor 70, which receives the forward rotation operation signal from the controller 60, rotates in the forward direction, whereby the second pinion 71 fixed to the motor shaft (not shown) is forcibly rotated The rack 20 is pushed forward and the first pinion 30 engaged with the upper surface of the rack 20 is rotated clockwise by the rack 20 which is moved forward.

Accordingly, when the first pinion 30 rotates clockwise, the reciprocating transfer member 40 fastened to the inner circumferential surface of the first pinion 30 moves outward from the inside of the first pinion 30 The machining distribution line L fixed to the insulator 41 is moved together with the reciprocating transfer member 40 to be maintained in a relaxed state so that the machining distribution line L is prevented from being excessively contracted So that a series of processes can be prevented as shown in FIG. 8B.

If the worker 41 or the machining distribution line L or the jumper line L 'is damaged, the worker immediately performs maintenance replacement work in the field. First, When the work table 82 is moved along the connection table 81 and is disposed on the upper surface of the mounting table 10 while the work table 82 is moved along the connection table 81 in a state of being mounted on the receiving portion 82a of the mounting table 82, The stopper 83 provided at the lower portion of the work table 82 is naturally pressed by the mounting table 10 to lift the work table 82 upward so that the work table 82 can be moved in the vertical direction, The first and second contact portions 82b are in surface contact with each other and no longer move.

Then, the operator can perform the replacement operation by using the equipment and tools mounted on the work table 82.

According to the present embodiment, the first pinion 30 and the reciprocating transfer member 40 having the machining distribution line L fixed to the end thereof are provided on the mounting table 10, and the first pinion 30 The control section 60 and the drive motor 70 are provided to control the length of the work distribution line L so that the length of the work distribution line L can be adjusted. It is advantageous in that it is relatively simple in construction and is easy to assemble and is easy to repair and replace.

In addition, according to the present embodiment, equipment and tools necessary for maintenance and replacement can be mounted on the work table 82, which makes it possible to store the equipment and tools mounted on the work table 82, It is possible to easily carry the work to the mounting table 10, so that the worker can perform the work in one place without moving, which is advantageous in that the work is considerably convenient.

In addition, according to the present embodiment, when the work table 82 is moved along the connection table 81 and disposed on the upper surface of the mounting table 10, the stopper 83 provided at the lower portion of the work table 82 is mounted on the mounting table 10 So that the work table 82 does not move any further since the connecting table 81 and the guide portion 82b are in surface contact with each other so that the work table 82 is lifted up by the work table 82, It is possible to solve the problem that the connecting rod 81 is separated from the connecting rod 81.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

1: Telephone pole 10: Mounting base 11: Guide ball
11a: protrusion 20: rack 30: first pinion
30a: left screw tab 30b: right screw tab 40:
41: insulator 42: threaded portion 42a: engaging groove
50: temperature sensor 60: control unit 70: drive motor
71: second pinion 80: work table assembly 81:
82: cradle 82a: accommodating portion 82b: guide portion
82c: stopper surface portion 82d: projecting piece 83: stopper

Claims (1)

(10) having a guide hole (11) horizontally penetrating on one side and having a protruding portion (11a) formed on an inner peripheral surface thereof and being fixed in parallel to the main body (1)
A rack (20) movably installed between the mounting table (10) via a guide member (G)
A first pinion 30 which is disposed between the guide holes 11 of the mounting table 10 and rotates in engagement with the rack 20 and has a left screw tab 30a and a right screw tab 30b which are opposed to each other on the inner circumferential surface, ):
A threaded portion 41 for fixing the machining distribution line L and a threaded portion 42 having an engaging groove 42a formed along the longitudinal direction and having a left or right helical line on the outer circumferential surface, (40) inserted into the first pinion (11a) and engaged with the first pinion (30) and whose length is adjusted by normal and reverse rotation of the first pinion (30)
A temperature sensor 50 installed on the mounting table 10 for measuring the ambient temperature and outputting the measured temperature value;
A control unit (60) for receiving a temperature value from a temperature sensor (50) and outputting a forward and reverse rotation signal to a drive motor (70)
And a second pinion 71 which is engaged with the rack 20 and is mounted on the mounting table 10 to receive a forward and reverse rotation signal from the control unit 60 and to forcibly rotate the second pinion 71 forward and reverse. (70):
A connecting rod 81 having a "T" shaped cross-section, which is disposed on the upper surface of the mounting table 10 so as to be spaced apart from each other through fixing means B and interconnects the mounting table 10; A guide portion 82b which is formed on the lower surface and is movably fitted in the linkage 81, a stopper 83 which is formed between the guide portion 82b and into which the stopper 83 is inserted, (82) formed on the inner surface of the stopper inner surface portion (82c) and having protruding pieces (82d) protruding to face each other and guiding the guide pieces (83a); And a stopper 83 which has a guide piece 83a inserted into the protruded piece 82d and which is inserted into the stopper holding portion 82c of the work table 82 to restrict the reciprocating movement of the work table 82 80) for preventing sagging of the processing distribution line.

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