CN217882315U - Interlocking mechanism for front door of switch cabinet and movable baffle of operation hole - Google Patents

Abstract

A front door and operation hole movable baffle interlocking mechanism of a switch cabinet is characterized in that a front door and a door frame are arranged in front of the switch cabinet, an operation mechanism and an externally matched operation handle are arranged in the switch cabinet, and the switch cabinet is provided with an operation hole corresponding to the operation mechanism; a movable baffle is vertically and slidably arranged in front of the operation hole, and a round hole is formed in the movable baffle; the front door pushing device comprises a pushing block, wherein the pushing block is fixedly arranged on the rear surface of a front door and moves along with the front door; the interlocking shaft is transversely extended and penetrates through the door frame; the interlocking shaft is fixedly connected with a first crank arm and a second crank arm; a transmission pin is arranged at the swinging end of the second crank arm, the axial direction of the transmission pin is transverse, the movable baffle is fixedly connected with a transmission block, the transmission block is provided with a long hole, and the transmission pin penetrates into the long hole of the transmission block; the interlocking shaft is also provided with a reset torsion spring. The utility model discloses can make cubical switchboard qianmen and operation hole adjustable fender constitute reliable interlocking relation between the two, convenient to use moreover.

Description

Interlocking mechanism for front door of switch cabinet and movable baffle of operation hole

Technical Field

The utility model belongs to the technical field of the cubical switchboard, concretely relates to cubical switchboard qianmen and handle hole adjustable fender interlocking device.

Background

The grounding switch and the isolating switch are arranged in the electrical switch cabinet, the grounding switch and the isolating switch are respectively provided with an operating mechanism and an operating handle matched with the operating mechanism, each operating mechanism is provided with an operating hole, and the operating holes face the front of the switch cabinet. When the operation is performed by changing the working state, the operation handle passes through the operation hole to operate the operation mechanism of the corresponding electric component. When the front door of the switch cabinet needs to be opened for internal maintenance and overhaul, other people are strictly forbidden to operate the grounding switch and the isolating switch, and therefore a movable baffle capable of rotating or sliding is usually installed on the operation hole in a matched mode. In the prior art, a padlock is usually sleeved on a movable baffle, a key is arranged on the padlock, and after a front door of a switch cabinet is opened, the movable baffle is locked by the padlock so that the movable baffle fixedly covers an operation hole, and therefore an operation handle cannot penetrate through the operation hole to operate an operation mechanism of a corresponding electrical component. However, the above measures involve the need to keep keys, which is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the above-mentioned shortcoming and providing a cubical switchboard qianmen and handle hole adjustable fender interlocking device, it can make cubical switchboard qianmen and handle hole adjustable fender constitute reliable interlocking relation between the two, convenient to use moreover.

The purpose can be realized according to the following scheme: a front door and door frame are arranged in front of a switch cabinet, an operating mechanism and an externally matched operating handle are arranged in the switch cabinet, the switch cabinet is provided with an operating hole corresponding to the operating mechanism, and the operating hole faces the front; a movable baffle is vertically and slidably arranged in front of the operation hole, and the movable baffle is provided with a round hole; the front door pushing device is mainly characterized by comprising a pushing block, wherein the pushing block is fixedly arranged on the rear surface of a front door and moves along with the front door; the interlocking shaft is transversely extended and penetrates through the door frame; the interlocking shaft is fixedly connected with a first crank arm and a second crank arm, and the first crank arm and the second crank arm synchronously swing around the central axis of the interlocking shaft along with the interlocking shaft; the swing end of the first crank arm swings between the front lower part and the rear lower part of the central axis of the interlocking shaft, and the swing end of the second crank arm swings between the rear upper part and the rear lower part of the central axis of the interlocking shaft;

a transmission pin is arranged at the swinging end of the second crank arm, the axial direction of the transmission pin is transverse, the movable baffle is fixedly connected with a transmission block, the transmission block is provided with a long hole, and the transmission pin penetrates through the long hole of the transmission block; the interlocking shaft is also provided with a reset torsion spring, and the torsion torque direction of the reset torsion spring enables the swinging end of the second crank arm to swing downwards;

when the front door is in a closed position, the pushing block of the front door presses the swinging end of the first crank arm backwards, the swinging end of the first crank arm is positioned behind and below the central axis of the interlocking shaft, the swinging end of the second crank arm is positioned behind and above the central axis of the interlocking shaft, the movable baffle is positioned at the high point of the vertical sliding stroke of the movable baffle, and the circular hole of the movable baffle is aligned with the operation hole;

when the front door is in an opening position, the push block of the front door is separated from the swinging end of the first crank arm, the swinging end of the first crank arm is positioned at the front lower part of the central axis of the interlocking shaft, the swinging end of the second crank arm is positioned at the rear lower part of the central axis of the interlocking shaft, the movable baffle is positioned at the low point of the vertical sliding stroke of the movable baffle, and the movable baffle covers the operation hole.

The utility model has the advantages of it is following and effect:

1. the utility model discloses can make cubical switchboard qianmen and handle hole adjustable fender constitute following reliable interlocking relation between the two: when the front door is closed, the round hole of the movable baffle plate is aligned with the operation hole, the operation handle can be inserted into the operation hole, and the operation mechanism (the grounding switch operation mechanism and/or the isolating switch operation mechanism) can operate; on the contrary, when the front door is opened, the circular hole of the movable baffle covers the operation hole, the operation handle cannot be inserted into the operation hole, and the operation mechanism (the grounding switch operation mechanism and/or the isolating switch operation mechanism) cannot be operated.

2. The utility model discloses a first turning arm, second turning arm turn into movable baffle's vertical motion with the longitudinal movement of cubical switchboard front door, and the interlocking relation is reliable, and convenient to use need not to use the key.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a cabinet in a closed state of a front door of the cabinet according to an embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view of the state shown in fig. 1.

Fig. 3 is a perspective view of the flapper of fig. 2 in mating relationship with the actuator aperture.

Fig. 4 is a side projection structure view of the state shown in fig. 3.

Fig. 5 is a simplified structural diagram of the relevant main components in the state shown in fig. 4.

Fig. 6 is a schematic front view of the state shown in fig. 2.

Fig. 7 is a schematic view of a three-dimensional structure of the embodiment of the present invention in an opened state of a front door of a cabinet.

Fig. 8 is a partially enlarged schematic view of the state shown in fig. 7.

Fig. 9 is a side projection view schematically showing the state of fig. 8.

Fig. 10 is a simplified structural diagram of the main components in the state shown in fig. 9.

Detailed Description

The embodiment shown in fig. 1, 2, 3, 4, 5 and 6 is an interlocking mechanism of a front door and an operation hole movable baffle of a switch cabinet, wherein the front door 1 and a door frame 11 are arranged on the front of the switch cabinet, an operation mechanism and an externally matched operation handle are arranged in the switch cabinet, the switch cabinet is provided with an operation hole 10 corresponding to the operation mechanism, and the operation hole 10 faces to the front; a movable baffle 2 is vertically slidably arranged in front of the operation hole 10, and the movable baffle 2 is provided with a round hole 20; the interlocking mechanism comprises a push block 12, wherein the push block 12 is fixedly arranged on the rear surface of the front door 1, and the push block 12 moves along with the front door 1; a transversely extending interlocking shaft 3 is also arranged, and the interlocking shaft 3 penetrates through the doorframe 11; the interlocking shaft 3 is fixedly connected with a first crank arm 41 and a second crank arm 42, and the first crank arm 41 and the second crank arm 42 synchronously swing around the central axis of the interlocking shaft along with the interlocking shaft 3; the swing end of the first crank arm 41 swings between the front lower part and the rear lower part of the central axis of the interlocking shaft 3, and the swing end of the second crank arm 42 swings between the rear upper part and the rear lower part of the central axis of the interlocking shaft 3; the swinging end of the second crank arm 42 is provided with a transmission pin 5, the axial direction of the transmission pin 5 is transverse, the movable baffle 2 is fixedly connected with a transmission block 6, the transmission block 6 is provided with a long hole 60, and the transmission pin 5 penetrates through the long hole 60 of the transmission block 6; the interlocking shaft 3 is also provided with a reset torsion spring 7, and the torsion torque direction of the reset torsion spring 7 enables the swinging end of the second crank arm 42 to swing downwards.

When the front door 1 is in a closed position, the push block 12 of the front door presses the swinging end of the first crank arm 41 backwards, the swinging end of the first crank arm 41 is positioned at the rear lower part of the central axis of the interlocking shaft 3, the swinging end of the second crank arm 42 is positioned at the rear upper part of the central axis of the interlocking shaft 3, the movable baffle 2 is positioned at the high point of the vertical sliding stroke, the round hole 20 of the movable baffle is aligned with the operation hole 10, the operation handle can be inserted into the operation hole 10, and the operation mechanism (the earthing switch operation mechanism and/or the isolating switch operation mechanism) can be operated, as shown in fig. 1 to 6;

when the front door 1 is at the open position, the push block 12 of the front door is separated from the swing end of the first crank arm 41, under the action of the self weight of the movable baffle 2 and the torsion force of the reset torsion spring 7, the swing end of the first crank arm 41 moves to the front lower part of the central axis of the interlocking shaft 3, the swing end of the second crank arm 42 moves to the rear lower part of the central axis of the interlocking shaft 3, the movable baffle 2 is at the low point of the vertical sliding stroke, the movable baffle 2 covers the operation hole 10, the operation handle cannot be inserted into the operation hole 10, and the operation mechanism (the grounding switch operation mechanism and/or the isolating switch operation mechanism) cannot be operated, as shown in fig. 7, 8, 9 and 10.

Claims (1)

1. A front door and door frame are arranged in front of a switch cabinet, an operating mechanism and an externally matched operating handle are arranged in the switch cabinet, the switch cabinet is provided with an operating hole corresponding to the operating mechanism, and the operating hole faces the front; a movable baffle is vertically and slidably arranged in front of the operation hole, and the movable baffle is provided with a round hole; the method is characterized in that: the front door pushing device comprises a pushing block, wherein the pushing block is fixedly arranged on the rear surface of a front door and moves along with the front door; the interlocking shaft is transversely extended and penetrates through the door frame; the interlocking shaft is fixedly connected with a first crank arm and a second crank arm, and the first crank arm and the second crank arm synchronously swing around the central axis of the interlocking shaft along with the interlocking shaft; the swinging end of the first crank arm swings between the front lower part and the rear lower part of the central axis of the interlocking shaft, and the swinging end of the second crank arm swings between the rear upper part and the rear lower part of the central axis of the interlocking shaft;

a transmission pin is arranged at the swinging end of the second crank arm, the axial direction of the transmission pin is transverse, the movable baffle is fixedly connected with a transmission block, the transmission block is provided with a long hole, and the transmission pin penetrates through the long hole of the transmission block; the interlocking shaft is also provided with a reset torsion spring, and the torsion torque direction of the reset torsion spring enables the swinging end of the second crank arm to swing downwards;

when the front door is in a closed position, the pushing block of the front door presses the swinging end of the first crank arm backwards, the swinging end of the first crank arm is positioned behind and below the central axis of the interlocking shaft, the swinging end of the second crank arm is positioned behind and above the central axis of the interlocking shaft, the movable baffle is positioned at a high point of the vertical sliding stroke of the movable baffle, and the round hole of the movable baffle is aligned with the operation hole;

when the front door is in an opening position, the push block of the front door is separated from the swinging end of the first crank arm, the swinging end of the first crank arm is positioned at the front lower part of the central axis of the interlocking shaft, the swinging end of the second crank arm is positioned at the rear lower part of the central axis of the interlocking shaft, the movable baffle is positioned at the low point of the vertical sliding stroke of the movable baffle, and the movable baffle covers the operation hole.

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