KR100430224B1 - Entrance/exit position indication apparatus for circuit breaker for distributing board - Google Patents

Abstract

The present invention relates to a draw-out position display device of a circuit breaker for a switchgear, comprising: a fixing part fixedly spaced apart a predetermined distance along a horizontal direction from a lower side of a bus terminal of a switchgear, between the bus terminal side and the fixing part. A circuit breaker for a switchgear having a moving part arranged to be movable along a horizontal direction between an operating position where a bus terminal and a contact part of a main circuit contact each other and a disconnection position separated from each other. A position display arm rotatably disposed about a pivot point formed at a point spaced apart from the government by a predetermined distance from the government terminal, and rotated in association with the movement of the movable unit to display a position of the main circuit unit; A display window formed on the fixing portion to enable observation of an end of the position display arm from the outside; An action pin protruding toward the other of the moving part and the position indication arm; And a pin guide for receiving the action pin on the other of the moving part and the position indication arm to guide the action pin when the moving part moves so that the position indication arm rotates. Thereby, the lead-out position display apparatus of the circuit breaker for switchboards which can grasp | ascertain the position of a circuit breaker quickly and correctly is provided.

Description

Draw-in and out position display device of circuit breaker for switchboard {ENTRANCE / EXIT POSITION INDICATION APPARATUS FOR CIRCUIT BREAKER FOR DISTRIBUTING BOARD}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawout position display device of a circuit breaker for a switchgear, and more particularly, to a drawout position display device of a circuit breaker for a switchgear capable of quickly and accurately identifying a position of the circuit breaker.

A switchboard is a device that puts a switch, a meter, a relay, and the like constantly in order to operate or control a power plant or substation, or to operate an electric motor. In general, a switchboard has an open type and a so-called cubicle. It is classified as closed type.

The closed switchgear has a rectangular parallelepiped enclosed by a metal plate or a wire mesh, and there are cradles for in / out circuit breakers and circuit breakers.

1 is a side view of a conventional switchgear, FIG. 2 is a partial perspective view of a balance portion of a conventional circuit breaker for a switchgear, and FIG. 3 is a view for explaining the operation of the balance portion of FIG. As shown in these figures, the switchboard is connected to and separated from the enclosure 1 having a hexahedron shape and forming an accommodation space therein, and the bus terminal 3 and the load terminal 5 drawn in and out from the outside, respectively. The circuit breaker 11 and the circuit breaker 11 are provided with a contactor 13 so as to be movable so that the contactor 13 can be contacted and separated from the bus terminal 3 and the load terminal 5. It is provided with a cradle 51 accommodated in the interior of the enclosure 1 to be driven.

The cradle 51 has a bus chamber 53 and a circuit breaker 11 arranged along the vertical direction of the enclosure 1 so that the bus terminal 3, the load terminal 5, and the contact 13 come into contact with each other. The partition wall part 52a which divides into the circuit breaker chamber 54 accommodated and installed is provided, and the bottom plate part 52b arrange | positioned under the circuit breaker 11 so that the circuit breaker 11 is movable is provided.

The circuit breaker 11 includes a plurality of contacts 13, a vacuum interrupter (not shown), and the like so as to be in contact with the bus terminal 3 and the load terminal 5, respectively, so that the bus side and the load side mutually exist when an accident current occurs. The main circuit part 12 which cuts off, the drive part 14 which drives the main circuit part 12, and the trolley | bogie part 15 for moving the main circuit part 12 and the drive part 14 are comprised.

The trolley | bogie 15 is provided with the fixing | fixed part 17 which is integrally fixed to the cradle 51, and the moving part 33 arrange | positioned so that relative movement with respect to the fixed part 17, The fixed part 17 ), The handle inserting portion 19 is formed so that the driving handle 20 for moving the moving portion 33 can be inserted.

The driving unit 21 is rotatably coupled to the fixing unit 17 and the male screw unit is formed on the outer surface of the moving unit 33, and the driving shaft 21 is rotatably supported at the end of the driving unit 21. The shaft support 23 is coupled so that it can be.

A pair of wheels 38 are provided at both side edges of the moving part 33, and a shaft hole 39 is formed at a front surface thereof to which the driving shaft 21 passes and is coupled. The rear side of the shaft hole 39 is integrally coupled to the female screw portion 41 which is screwed to the male screw portion of the drive shaft 21 and moves relatively, and the shaft support body supporting the driving shaft 21 on one side of the female screw portion 41. The guide part 43 which guides so that 23 may slide can be formed.

On the other hand, the contactor 13 is connected to the bus terminal 3 and the load terminal 5 at the lower side of the cart 15 along the moving direction of the moving part 33, and power is supplied to an auxiliary circuit (not shown). Character stickers 55b and 55c are attached to identify the operation position and the test position where the contactor 13 is separated from the bus terminal 3 and the load terminal 5 and moved only with the auxiliary circuit connected. On the upper surface of the fixing portion 17, a letter sticker 55a indicating the position of power cut is attached.

By such a configuration, when the circuit breaker 11 is rotated by inserting the driving handle 20 into the handle inserting portion 19 of the fixing portion 17 while the circuit breaker 11 is located at the disconnection position, the driving shaft is integrally formed with the driving handle 20. As the 21 is rotated and the drive shaft 21 is rotated, the moving part 33 is moved along the axial direction of the drive shaft 21. When the test position character sticker 55c attached to the cradle 51 is visible, the operator stops the rotation of the driving handle 20. When the inspection is completed in the test position and the drive handle 20 is continuously rotated, the moving part 33 moves so that the contactor 13 comes into contact with the bus terminal 3 and the load terminal 5, and the operation position character sticker When 55b is shown, driving of the driving handle 20 is stopped.

By the way, in such a conventional switchboard, the character stickers 55a to 55c indicating the corresponding positions are attached to the upper surface of the fixing part 17 and the upper surface of the cradle 51, and the worker turns the driving handle 20 It is said that it is difficult to grasp the position of the trolley 15 quickly and accurately because the position of the trolley 15 is moved to determine the position by looking at the character stickers 55a to 55c attached to the position. There is a problem.

Accordingly, it is an object of the present invention to provide a drawout position display apparatus of a circuit breaker for a switchgear capable of quickly and accurately grasping the position of the circuit breaker.

1 is a side view of a conventional switchboard;

2 is a partial perspective view of a balance portion of a circuit breaker for a conventional switchboard;

3 is a view for explaining the operation of the balance of FIG.

4 is a perspective view illustrating a state of use of a drawout position display apparatus of a circuit breaker for a switchboard according to an embodiment of the present invention;

5 is a plan view of the fixing part of FIG.

6 is a perspective view of the position indicating arm of FIG. 5;

7 is a perspective view of an engaged state of the position indication arm of FIG. 6.

** Description of symbols for the main parts of the drawing **

17: fixed portion 21: drive shaft

27: display window 29: rotating shaft support member

31: rotating shaft 33: moving part

34: main body 35: doorway

36: top plate 61: position indicating arm

62: shaft work 65: character display

66a: Disconnection position display part 66b: Operation position display part

67c: test position indicator 67: action pin

69: pin guide 70a: disconnection position

70b: Operation position 70c: Test position

According to the present invention, the fixing part is fixedly spaced apart by a predetermined distance along the horizontal direction from the lower side of the bus terminal of the switchboard, the contact between the bus terminal and the main circuit portion between the bus terminal side and the fixing part A circuit breaker for a switchgear having a moving part arranged to be movable along a horizontal direction between an operating position in contact with each other and a disconnection position separated from each other, comprising: a predetermined distance from the fixing part toward the bus terminal side along a moving direction of the moving part; A position display arm rotatably disposed about a pivot point formed at a spaced distance, the position indication arm being pivoted in association with the movement of the moving unit to display a position of the main circuit unit; A display window formed on the fixing portion to enable observation of an end of the position display arm from the outside; An action pin protruding toward the other of the moving part and the position indication arm; And a pin guide for receiving the action pin on the other of the moving part and the position indication arm to guide the action pin when the moving part moves so that the position indication arm rotates. Achieved by a draw-out position indicator.

Here, the action pin is formed on the position display arm, the pin guide portion is preferably formed to be inclined in the moving direction of the moving portion of the moving portion.

Further, it is effective to further include a rotating shaft for rotatably supporting the position indication arm, and a rotating shaft support member extending from the fixing portion to support the rotating shaft.

In addition, it is preferable that the moving part has an entrance and exit at a front surface thereof to allow the position display arm and the pivot shaft support member to enter and exit.

The display window side end portion of the position display arm is effectively formed with a text display portion represented by a letter corresponding to the operation position and the power cut position so that the display window side can be observed.

The letter display unit may further include a letter corresponding to the test position.

In addition, the display window is formed so as to correspond to the rotational trajectory of the end of the position display arm, it is effective that the character display portion is formed on the edge of the display window to display the operation position and the power cut position.

In addition, the character display unit is preferably configured to further include a test position.

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

4 is a perspective view illustrating a state of use of a drawout position display apparatus of a circuit breaker for a switchboard according to an embodiment of the present invention, FIG. 5 is a plan view of the fixing part of FIG. 4, and FIG. 6 is a position display of FIG. 5. 7 is a perspective view of the arm, and FIG. 7 is a perspective view of an engaged state of the position indicating arm of FIG. Like reference numerals refer to like elements and like parts, and detailed descriptions thereof will be omitted. As shown in these figures, the trolley portion 15 is movable with respect to the fixing portion 17 by having a fixing portion 17 fixedly arranged on one side of the cradle 51 and a plurality of wheels 38. The moving part 33 is arrange | positioned so that it may be provided.

The moving part 33 may include a main body 34 having a rectangular cylindrical shape opened upwardly to form a predetermined accommodation space therein, and an upper plate 36 integrally coupled to block an upper region of the main body 34; A plurality of wheels 38 are rotatably coupled to both side edges of the main body 34.

The fixing part 17 is disposed along one side of the moving part 33 in the longitudinal direction, and the drive shaft 21 extending into the moving part 33 is rotatably coupled to the central area along the longitudinal direction. The trolley | bogie 15 is provided with the draw-out position display apparatus of the circuit breaker for switchboards which concerns on one Embodiment of this invention.

The lead-out position display device of the circuit breaker for the switchgear is disposed to be rotatable about a rotation shaft 31 formed at a point spaced a predetermined distance from the fixed portion 17 in the moving direction of the moving portion 33. Pin guide for receiving and guiding the receiving arm 61, the acting pin 67 protruding from one end of the position indicating arm 61, and the acting pin 67 on the upper plate of the moving part 33 so as to be relatively movable. It consists of 69.

The position display arm 61 is formed of an elongated plate-like member, and an action pin 67 is formed to protrude upward on an upper surface of one end portion along the longitudinal direction. Opposite ends of the actuating pins 67 include the disconnection position display unit Disconnecta 66a and the test position display unit Test, so that the positions of the circuit breaker 11, that is, the disconnection position, the operating position, and the test position can be displayed respectively. 66c) and the character display unit 65 on which the operation position display unit (Connect) 66b is formed are combined.

The letter display unit 65 is formed so as to correspond to the rotational position so that each display unit 66a to 66c may be disposed in parallel with the display window 27 formed through the front of the fixing unit 17 when the position display arm 61 rotates. The disconnection position display portion 66a and the operation position display portion 66b disposed on the side are formed to be inclined with respect to the test display portion 66c, respectively. On one side of the character display portion 65, the shaft hole 62 is formed so that the rotation shaft 31 for rotationally supporting the position display arm 61 can be accommodated.

A pin guide 69 is formed in the upper plate of the moving part 33 so as to be able to receive the action pin 67 so as to be able to move relatively and inclined with respect to the moving direction of the moving part 33. Here, the fixed end 17 side end of the pin guide 69 corresponds to the driving position 70b, and the opposite end end is formed to correspond to the disconnection position 70a. The test position 70c is formed at a predetermined distance from the power cutoff position 70a, and the operation position (1) from the first section 72 and the test position 70c from the power cut position 70a to the test position 70c. The second section 74 up to 70b includes the drive shaft 21 of the moving unit 33 so that the position indication arm 61 can be rotated at the same angle about the pivot shaft 31 when the moving unit 33 moves. It is formed to have a different inclination angle with respect to the axial direction of.

On the other hand, a rotating shaft support member 29 extending along the axial direction of the drive shaft 21 to support the rotating shaft 31 is formed under the rear surface of the display window 27 of the fixing portion 17. On the upper surface of the end of the member 29, the pivot shaft 31 is formed to protrude upward to correspond to the shaft hole 62 of the position display arm 61. Correspondingly, an entrance 35 is formed in the front portion of the moving part 33 so that the position display arm 61 and the pivot shaft support member 29 can enter and exit.

By this configuration, the rotation shaft 31 is coupled to the inside of the shaft hole 62 of the position display arm 61, and the position display arm 61 and the rotation are provided through the entrance and exit 35 of the moving part 33. The coaxial support member 29 is inserted into the moving part 33. Next, the upper plate 36 of the moving part 33 is coupled so that the action pin 67 may be accommodated in the pin guide 69. At this time, one area of the character display part 65 is displayed on the display window 27 of the fixing part 17 so as to correspond to the position where the action pin 67 is inserted into the pin guide 69.

When the driving handle 20 is rotated to insert the driving handle 20 into the handle insertion unit 19 so that the moving unit 33 moves to the disconnection position, the moving unit 33 moves to the fixed unit 17 side. Accordingly, the position display arm 61 is rotated about the pivot shaft 31 as the pin guide 69 moves relative to the action pin 67, so that the position display arm 61 is disconnected from the display window 27. 66a) is displayed. When the driving handle 20 is rotated in reverse, the moving part 33 moves in a direction away from the fixing part 17, and the position indication arm 61 rotates in the opposite direction about the rotation shaft 31 in association with this. do. When the moving unit 33 reaches the test position, a test position display unit (Test) 66c is displayed on the display window 27. When the moving unit 33 reaches the operating position, the display unit 27 displays an operation position display unit ( Connect 66b is displayed.

In the above-described and illustrated embodiments, the case where the action pin is formed on the position display arm and the pin guide is formed on the upper plate of the moving part so as to interact with the action pin is described. The pin guide may be formed on the position indicating arm.

In addition, in the above-described and illustrated embodiments, an example is provided in which a display window is formed in the fixed portion and a letter display portion in which a letter corresponding to each position of the circuit breaker is formed at the end of the position display arm is formed. May be accommodated inside the display window to be rotated, and a letter display unit may be formed at the lower or upper edge of the display window to indicate the position of the circuit breaker.

As described above, according to the present invention, the position display arm rotated in conjunction with the inlet and withdrawal of the circuit breaker, the working pin is formed to protrude toward the other one of the position display arm and the moving portion, and the position display arm And by providing a pin guide portion formed to guide the action pin to the other of the moving part, it is possible to display the position of the circuit breaker in conjunction with the movement of the circuit breaker, so that the operator can quickly and accurately determine the position of the circuit breaker A draw-in and out position display device of a circuit breaker for a switchboard is provided.

Claims (8)

A fixed part spaced apart by a predetermined distance along a horizontal direction from the lower side of the bus terminal of the switchboard, and separated from the operation position where the bus terminal and the contact portion of the main circuit part contact each other between the bus terminal side and the fixed part A circuit breaker for a switchgear having a moving part arranged to be movable in a horizontal direction between disconnection positions, wherein the circuit breaker is formed at a point spaced a predetermined distance away from the fixing part to the bus terminal side along the moving direction of the moving part. A position display arm rotatably disposed so as to rotate in association with movement of the moving unit to display a position of the main circuit unit; A display window formed on the fixing portion to enable observation of an end of the position display arm from the outside; An action pin protruding toward the other of the moving part and the position indication arm; And a pin guide for receiving the action pin on the other of the moving part and the position indication arm to guide the action pin when the moving part moves so that the position indication arm rotates. Draw-in / out position indicator. The method of claim 1, Wherein the actuating pin is formed on the position display arm, the pin guide portion is drawn in and out position display device of the circuit breaker for the switchboard, characterized in that formed in the moving part inclined in the moving direction of the moving part. The method of claim 1, And a rotation shaft for rotatably supporting the position display arm, and a rotation shaft support member extending from the fixing portion to support the rotation shaft. The method of claim 3, The moving part has an entrance and exit position display device of a circuit breaker for a switchgear, characterized in that the entrance is formed in the front surface to allow the position display arm and the pivot shaft support member to enter and exit. The method according to any one of claims 1 to 4, At the display window side end of the position display arm is formed a character display portion expressed in letters corresponding to the operation position and the disconnection position so that observation through the display window, the draw-out position display of the circuit breaker for switchboard Device. The method of claim 5, And the character display unit further includes a character corresponding to a test position. The method according to any one of claims 1 to 4, The display window is formed to correspond to the rotational trajectory of the end of the position display arm, and the character display portion is formed at the edge of the display window to display the operation position and the power cut position. Exit position indicator. The method of claim 7, wherein And the character display unit further includes a test position.