CN216435771U - Four-axis interlocking operating mechanism for high-voltage switch cabinet - Google Patents

Abstract

The utility model discloses a four-axis interlocking operating device for high tension switchgear, including mechanism interlocking baffle, mechanism interlocking baffle round pin, stop pin, panel, operating handle seat, switch interlocking assembly, interlocking plate, operating axis, connect turning arm, connecting rod, auxiliary switch, switch interlocking assembly mounting panel, operating handle and operating axis mounting panel, through four handle holes on the panel, operating handle can the rotating operation axle, come deciliter isolator and earthing switch to carry out interlocking control according to logic function, realize two functions of operation and interlocking. The mechanism is reliable in installation and convenient and fast to operate, can protect the safety of operators, and avoids circuit accidents caused by misoperation.

Description

Four-axis interlocking operating mechanism for high-voltage switch cabinet

Technical Field

The utility model relates to a mechanism that high tension switchgear used is a four-axis interlocking operating device for high tension switchgear particularly.

Background

In the existing high-voltage switch cabinet, the on-off interlocking operation of the isolating switch and the grounding switch is that the switch blades are opened and closed vertically by exerting force, so that the operating force is large, and the pin for interlocking limit is easily damaged due to the large operating force, so that the interlocking function is lost, and more serious equipment accidents and personal safety accidents are caused.

Disclosure of Invention

An object of the utility model is to the not enough of existence among the above-mentioned prior art, provide a safe and reliable, the laborsaving interlock of simple operation, be an earthing switch, isolator's that high tension switchgear used interlocking operating device.

The utility model adopts the technical proposal that: the four-axis interlocking operating mechanism for the high-voltage switch cabinet comprises a mechanism interlocking baffle, a mechanism interlocking baffle pin, a locking pin, a panel, an operating handle seat, a switch interlocking assembly, an interlocking plate, an operating shaft, a connecting crank arm, a connecting rod, an auxiliary switch, a switch interlocking assembly mounting plate, an operating handle and an operating shaft mounting plate, wherein an upper isolating switch operating hole, an upper grounding switch operating hole, a lower isolating switch operating hole and a lower grounding switch operating hole are formed in the operating mechanism panel; the switch interlocking assembly mounting plate is connected with the operating mechanism panel through switch interlocking assembly, and an operating handle seat is arranged between the rear part of each operating hole and the switch interlocking assembly mounting plate; the operating shaft mounting plate is arranged behind the switch interlocking assembly mounting plate, the operating shaft is mounted on the operating shaft mounting plate through a connecting crank arm and a connecting rod, the connecting rod is connected with an auxiliary switch, an interlocking plate is arranged on the operating shaft, the operating shaft sequentially penetrates through the interlocking plate, the switch interlocking assembly mounting plate, the operating handle seat and each operating hole, and the operating shaft is externally connected with an operating handle. Through four operation holes on the panel of the operating mechanism, the operating handle can rotate the operating shaft to switch on and off the isolating switch and the grounding switch, and interlocking control is carried out according to logic functions, so that two functions of operation and interlocking are realized.

Preferably, the operating shaft is provided as a regular hexagon.

Preferably, the interlocking plates interlock with each other in accordance with a logic function.

The principle of the utility model is that:

(1) the panel is provided with an upper isolating switch operating hole, an upper grounding switch operating hole, a lower isolating switch operating hole and a lower grounding switch operating hole, and is simultaneously connected with the mechanism interlocking baffle plate and used for opening and closing the operating holes through the mechanism interlocking baffle plate pin.

(2) The operating handle seat and the switch are assembled and connected on the mounting plate in an interlocking way and connected with the panel, and the locking pin assembled in the switch interlocking way penetrates out of the panel and can move left and right to control the switch interlocking and assembling.

(3) The auxiliary switch is connected with the operating shaft through a crank arm and a connecting rod and is arranged on the operating shaft mounting plate, and the operating shaft is sequentially penetrated through an interlocking plate, a switch interlocking assembly mounting plate and an operating handle seat and then is fastened and well adjusted in position.

(4) When the power is supplied, the interlocking baffle of the mechanism is opened, the operating handle is inserted into the operating hole of the lower grounding switch and sleeved on the operating shaft hexagon, and meanwhile, the locking pin of the lower grounding switch is pulled leftwards, and the operating handle is rotated anticlockwise to enable the lower grounding switch to be in a brake separating position; then an operating handle is inserted into an operating hole of the upper grounding switch and is sleeved on the hexagonal operating shaft, meanwhile, the locking pin of the upper grounding switch is pulled leftwards, and the operating handle is rotated anticlockwise to enable the upper grounding switch to be in a brake separating position; an operating handle is inserted into an operating hole of the upper isolating switch to be sleeved on the operating shaft hexagon, an upper isolating switch locking pin is pulled leftwards, the operating handle is rotated clockwise, the upper isolating switch is located at a switching-on position, and at the moment, the upper grounding switch is locked by the interlocking plate and cannot be switched on; an operating handle is inserted into an operating hole of the lower isolating switch to be sleeved on the output shaft hexagon, meanwhile, a locking pin of the lower isolating switch is pulled leftwards, the operating handle is rotated clockwise, the lower isolating switch is located at a switching-on position, and at the moment, the lower grounding switch is locked by an interlocking plate and cannot be switched on; and then the operating handle is taken down, the interlocking baffle of the mechanism is closed, the breaker is switched on, and the power transmission operation is finished. And the power failure operation is vice versa.

The structure shows that the utility model adopts the hexagonal operating shaft to convert the vertical force into the horizontal rotation force, thereby achieving the purpose of labor-saving operation; meanwhile, the mechanical interlocking function is realized by adopting an interlocking mode of interlocking plates.

The utility model has the main advantages that: safe and reliable, simple operation.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic diagram of the interlocking in power-off state of the present invention;

fig. 3 is a schematic diagram of the interlocking of the power transmission states of the present invention;

fig. 4 is a position diagram of each switch locking pin of the present invention.

The labels in the figure are: the interlocking device comprises a 1-mechanism interlocking baffle, a 2-mechanism interlocking baffle pin, a 3-locking pin, a 4-operating mechanism panel, a 5-operating handle seat, a 6-switch interlocking assembly, a 7-interlocking plate, an 8-operating shaft, a 9-connecting crank arm, a 10-connecting rod, an 11-auxiliary switch, a 12-switch interlocking assembly mounting plate, a 13-operating handle and a 14-operating shaft mounting plate. 41-upper disconnector operating hole, 42-upper disconnector operating hole, 43-lower disconnector operating hole, 44-lower disconnector operating hole, 31-upper disconnector locking pin, 32-upper disconnector locking pin, 33-lower disconnector locking pin, 34-lower disconnector locking pin, 81-upper disconnector operating shaft, 82-upper disconnector operating shaft, 83-lower disconnector operating shaft, 84-lower disconnector operating shaft, 111-upper disconnector, 112-upper disconnector, 113-lower disconnector, 114-lower disconnector.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the operating mechanism panel 4 is provided with an upper disconnecting switch operating hole 41, an upper earthing switch operating hole 42, a lower disconnecting switch operating hole 43, and a lower earthing switch operating hole 44, and is simultaneously connected with the mechanism interlocking barrier 1 and opens and closes each operating hole by the mechanism interlocking barrier pin 2.

Power transmission operation: overhaul → operation

a. When the switchgear needs to be powered on and operated after being installed or overhauled, the rear cabinet door is closed and locked → the front cabinet door is closed, the front cabinet door comprises a circuit breaker chamber door, a left small door and a right small door → an interlocking baffle plate 1 of an opening mechanism, and at the moment, the circuit breaker is locked and can not be switched on;

b. inserting the operating handle 13 into the lower grounding switch operating hole 44, sleeving the lower grounding switch operating shaft 84 on the hexagon, pulling the lower grounding switch locking pin 34 leftwards, and rotating the operating handle 13 anticlockwise to enable the lower grounding switch 114 to be in a brake separating position;

c. the operating handle 13 is taken down, the operating handle 13 is inserted into the upper grounding switch operating hole 42 and is sleeved on the upper grounding switch operating shaft 82 hexagon, and meanwhile, the upper grounding switch locking pin 32 is pulled leftwards, and the operating handle 13 is rotated anticlockwise, so that the upper grounding switch 112 is in a brake separating position;

d. the operating handle 13 is taken down, the operating handle 13 is inserted into the upper isolating switch operating hole 41 and sleeved on the hexagonal upper isolating switch operating shaft 81, meanwhile, the upper isolating switch locking pin 31 is pulled leftwards, and the operating handle 13 is rotated clockwise, so that the upper isolating switch 111 is in a switching-on position;

e. the operating handle 13 is taken down, the operating handle 13 is inserted into the lower isolating switch operating hole 43 and sleeved into the hexagonal lower isolating switch operating shaft 83, the lower isolating switch locking pin 33 is pulled leftwards, and the operating handle 13 is rotated clockwise, so that the lower isolating switch 113 is in a switching-on position;

f. and (3) the operating handle 13 is taken down, the mechanism interlocking baffle 1 is closed, the circuit breaker can be switched on at the moment, and the power transmission operation is finished.

And (3) power failure operation: operation → overhaul

a. When the switch device is in live operation, the upper isolating switch 111, the lower isolating switch 113 and the breaker are all in a closing state, the mechanism interlocking baffle 1 is in a closing position, and at the moment, the front door and the rear door of the switch device cannot be opened.

b. When power failure maintenance is carried out, the circuit breaker is broken → the interlocking baffle 1 of the mechanism is opened, and the circuit breaker is locked and can not be switched on again;

c. inserting the operating handle 13 into the lower isolating switch operating hole 43, simultaneously pulling the locking pin 31 corresponding to the lower isolating switch leftwards, and rotating the operating handle 13 anticlockwise to enable the lower isolating switch 113 to be in a brake separating position;

d. the operating handle 13 is taken down, the operating handle 13 is inserted into an operating hole of the upper isolating switch 111, namely the power supply side isolating switch, the locking pin 3 corresponding to the upper isolating switch is pulled leftwards, and the operating handle 13 is rotated anticlockwise, so that the upper isolating switch 111 is in a brake separating position;

e. the operating handle 13 is taken down, the operating handle 13 is inserted into an operating hole of the upper grounding switch, namely the power supply side grounding switch, the locking pin 3 corresponding to the upper grounding switch is pulled leftwards, the operating handle 13 is rotated clockwise, the upper grounding switch 112 is positioned at the switch-on position, the operating handle 13 is taken down, the interlocking baffle plate 1 of the mechanism is closed, and at the moment, if only the breaker chamber is overhauled, the front door can be opened for overhauling.

f. The operating handle 13 is inserted into the lower earthing switch operating hole 44, the locking pin 3 corresponding to the lower earthing switch is pulled leftwards, the operating handle 13 is rotated clockwise, the lower earthing switch 114 is in the switch-on position, the operating handle 13 is taken down, the mechanism interlocking baffle 1 is closed, and at the moment, if only the cable chamber is overhauled, the back door can be opened for overhauling.

Remarking: there is no interlock between step item e and item f and the operations can be performed in any order.

The present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (3)

1. The utility model provides a four-axis interlocking operating device for high tension switchgear which characterized in that: the device comprises a mechanism interlocking baffle plate (1), a mechanism interlocking baffle plate pin (2), a locking pin (3), an operating mechanism panel (4), an operating handle seat (5), a switch interlocking assembly (6), an interlocking plate (7), an operating shaft (8), a connecting crank arm (9), a connecting rod (10), an auxiliary switch (11), a switch interlocking assembly mounting plate (12), an operating handle (13) and an operating shaft mounting plate (14), wherein an upper isolating switch operating hole (41), an upper grounding switch operating hole (42), a lower isolating switch operating hole (43) and a lower grounding switch operating hole (44) are arranged on the operating mechanism panel (4), all the operating holes are simultaneously connected with the mechanism interlocking baffle plate (1) and are opened and closed through the mechanism interlocking baffle plate pin (2), and the locking pin (3) is respectively arranged beside each operating hole; the switch interlocking assembly mounting plate (12) is connected with the operating mechanism panel (4) through a switch interlocking assembly (6), and an operating handle seat (5) is respectively arranged between the rear part of each operating hole and the switch interlocking assembly mounting plate (12); the operating shaft mounting plate (14) is arranged behind the switch interlocking assembly mounting plate (12), the operating shaft (8) is arranged on the operating shaft mounting plate (14) through a connecting crank arm (9) and a connecting rod (10), the connecting rod (10) is connected with an auxiliary switch (11), an interlocking plate (7) is arranged on the operating shaft (8), the operating shaft (8) sequentially penetrates through the interlocking plate (7), the switch interlocking assembly mounting plate (12), the operating handle seat (5) and each operating hole, and the operating shaft (8) is externally connected with an operating handle (13).

2. The four-axis interlocking operating mechanism for the high-voltage switch cabinet as claimed in claim 1, wherein: the operating shaft (8) is arranged to be a regular hexagon.

3. The four-axis interlocking operating mechanism for the high-voltage switch cabinet as claimed in claim 1 or 2, wherein: the interlocking plates (7) are interlocked with each other according to a logic function.

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