Switch cabinet and telescopic valve device

Abstract

The invention belongs to the field of switch cabinets, and particularly relates to a switch cabinet and a telescopic valve device. The telescopic valve device comprises a base extending in the front-back direction, a fixed door is arranged on the rear portion of the base, a plurality of movable doors are arranged in the fixed door, a guide rail is fixed to the base, vertical turned-over edges are arranged at the front ends of the side walls of the same sides of the movable doors, sliding blocks matched with the guide rail in a guiding mode are connected to the vertical turned-over edges, and a fixed block is connected to the fixed door. A transmission rod is arranged on one of the two adjacent sliding blocks, a limiting structure is arranged on the other one of the two adjacent sliding blocks, a transmission rod is arranged on one of the fixed block and the sliding block adjacent to the fixed block, a limiting structure is arranged on the other one of the fixed block and the sliding block adjacent to the fixed block, and long holes or long grooves are formed in the transmission rods. The limiting structure slides in the long hole or the long groove, and all the transmission rods are arranged in a staggered mode so that interference can be avoided when the transmission rods move in the front-back direction. The telescopic valve device further comprises a driving mechanism in transmission connection with the sliding block of the forefront movable door.

Description

technical field

[0001] The invention belongs to the field of switch cabinets, and in particular relates to a switch cabinet and a retractable valve device. Background technique

[0002] In medium-voltage metal-enclosed switchgear, since the static contact is a normally charged end, in order to prevent maintenance personnel from accidentally touching the static contact and endangering personal safety when overhauling the circuit, a telescopic switch is installed between the isolation sleeves of the upper and lower static contacts. Valve device, when the isolated moving contact is in the isolated and disconnected state, the valve of the retractable valve device is closed to cover the static contact.

[0003] The Chinese patent document with the authorized notification number CN104485579B discloses a switchgear valve device, which includes a guide base, a fixed valve and a movable valve. The fixed valve and the movable valve are both U-shaped plate structures. Vertical and ver...

Examples

Embodiment 1

[0064] Such as Figure 1 to Figure 3 As shown, the retractable shutter device includes a base 11 extending in the front-to-back direction. The base 11 is provided with contact avoidance holes 12 for avoiding static contacts. There are three contact avoidance holes 12, and the three contact avoidance holes 12 are arranged along the front and rear. The direction is arranged at intervals. The rear part of the base 11 is provided with a fixed door 14, and a plurality of movable doors 13 are arranged in the fixed door 14, and the movable doors 13 are driven to move by a driving mechanism.

[0065] In this embodiment, a guide rail 18 extending along the front-to-rear direction is fixed on the base 11 , and the cross-section of the guide rail 18 is an inverted T-shaped structure. The front end of the side wall of each movable door 13 same side is provided with a vertical flange 23, and the vertical flange 23 is connected with a slide block 21 that guides and cooperates with the guid...

Embodiment 2

[0081] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, when the telescopic valve device is in the open state, the distance between two adjacent sliders is less than the length of the long hole, so that the telescopic valve device is closed during the closing process. , through the push and fit of two sliders to transmit power, so as to realize the sequential closing of the dodge door. In this embodiment, when the telescopic valve device is in the open state, the distance between two adjacent sliders is greater than the length of the long hole, so that the end hole wall of the long hole on the transmission rod will be closed during the closing process of the telescopic valve device. Push and cooperate with the limit pin to transmit power to realize the sequential closing of the dodge door.

Embodiment 3

[0083] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the transmission rod is provided with a long hole extending in the front and rear direction, the limit pin slides in the long hole, and the limit pin is provided with a stop for preventing the transmission rod from coming out. The snap ring, wherein the limit pin constitutes a limit structure. In this embodiment, the transmission rod is provided with a long groove, the front and rear ends of the long groove are closed structures, the cross section of the long groove is a dovetail structure or a T-shaped structure, and the limiting structure is a protrusion adapted to the long groove.

technical field

[0001] The invention belongs to the field of switch cabinets, and in particular relates to a switch cabinet and a retractable valve device. Background technique

[0002] In medium-voltage metal-enclosed switchgear, since the static contact is a normally charged end, in order to prevent maintenance personnel from accidentally touching the static contact and endangering personal safety when overhauling the circuit, a telescopic switch is installed between the isolation sleeves of the upper and lower static contacts. Valve device, when the isolated moving contact is in the isolated and disconnected state, the valve of the retractable valve device is closed to cover the static contact.

[0003] The Chinese patent document with the authorized notification number CN104485579B discloses a switchgear valve device, which includes a guide base, a fixed valve and a movable valve. The fixed valve and the movable valve are both U-shaped plate structures. Vertical and ver...

Examples

Embodiment 1

[0064] Such as Figure 1 to Figure 3 As shown, the retractable shutter device includes a base 11 extending in the front-to-back direction. The base 11 is provided with contact avoidance holes 12 for avoiding static contacts. There are three contact avoidance holes 12, and the three contact avoidance holes 12 are arranged along the front and rear. The direction is arranged at intervals. The rear part of the base 11 is provided with a fixed door 14, and a plurality of movable doors 13 are arranged in the fixed door 14, and the movable doors 13 are driven to move by a driving mechanism.

[0065] In this embodiment, a guide rail 18 extending along the front-to-rear direction is fixed on the base 11 , and the cross-section of the guide rail 18 is an inverted T-shaped structure. The front end of the side wall of each movable door 13 same side is provided with a vertical flange 23, and the vertical flange 23 is connected with a slide block 21 that guides and cooperates with the guid...

Embodiment 2

[0081] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, when the telescopic valve device is in the open state, the distance between two adjacent sliders is less than the length of the long hole, so that the telescopic valve device is closed during the closing process. , through the push and fit of two sliders to transmit power, so as to realize the sequential closing of the dodge door. In this embodiment, when the telescopic valve device is in the open state, the distance between two adjacent sliders is greater than the length of the long hole, so that the end hole wall of the long hole on the transmission rod will be closed during the closing process of the telescopic valve device. Push and cooperate with the limit pin to transmit power to realize the sequential closing of the dodge door.

Embodiment 3

[0083] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the transmission rod is provided with a long hole extending in the front and rear direction, the limit pin slides in the long hole, and the limit pin is provided with a stop for preventing the transmission rod from coming out. The snap ring, wherein the limit pin constitutes a limit structure. In this embodiment, the transmission rod is provided with a long groove, the front and rear ends of the long groove are closed structures, the cross section of the long groove is a dovetail structure or a T-shaped structure, and the limiting structure is a protrusion adapted to the long groove.

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