CN205828249U - An indoor high voltage safety isolating switch - Google Patents

Abstract

The utility model discloses an indoor high-voltage safety isolating switch, which comprises a housin, top one side of casing is equipped with the spout, the casing internal fixation has the static contact, and one side of static contact is connected with first pin, and first pin extends to the outside of casing, one side that first pin was kept away from to the static contact is equipped with the contact box, and the contact box is both ends open-ended cylindric box body, be equipped with cylindric trompil on the contact box. The utility model discloses, use the flexible motor extension of controller control, voussoir extrusion moving contact makes the moving contact move to the static contact direction in the contact box to with the static contact, reach the closed effect of switch, when flexible motor retrieves, the voussoir is packed up, spring post extrusion fixture block moves the moving contact to the direction of keeping away from the static contact, the switch disconnection, above design, simple structure, low cost carry out remote operation through the controller, can avoid the injury of high-tension electricity to the human body, the security performance is high, easily use widely.

Description

An indoor high voltage safety isolating switch

technical field

The utility model relates to the technical field of high-voltage switches, in particular to an indoor high-voltage safety isolating switch.

Background technique

High-voltage isolating switch is an important switching device in the electrical system of power plants and substations. It needs to be used in conjunction with high-voltage circuit breakers. Its main functions are: to ensure the safety of high-voltage electrical appliances and devices during maintenance work, and to isolate voltage. It cannot be used with Cutting off, inputting load current and breaking short-circuit current can only be used for some switching operations that do not generate strong arcs, that is to say, it does not have arc extinguishing function; it can be divided into indoor type and outdoor type according to different installation locations, and according to insulating pillars The number is divided into single-column type, double-column type and three-column type. There are optional equipment for each voltage level. The high-voltage isolating switch currently on the market cannot meet the needs of workers for safe operation, and the cost of vacuum isolating switches is relatively high. And easy to damage, resulting in waste of resources, so the market needs a low-cost high-voltage safety isolating switch that can replace the vacuum switch.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose an indoor high-voltage safety isolating switch.

In order to achieve the above object, the utility model adopts the following technical solutions:

An indoor high-voltage safety isolating switch, comprising a housing, a chute is provided on one side of the top of the housing, a static contact is fixed inside the housing, and a first lead post is connected to one side of the static contact, And the first lead post extends to the outside of the housing, the side of the static contact away from the first lead post is provided with a contact box, and the contact box is a cylindrical box with two ends open, the contact box There is a cylindrical opening on the top, and a moving contact is arranged in the card slot, and a card slot is provided above and below the card slot, and a spring column is embedded in the card slot, and the outer wall of the moving contact A block is sleeved, the block is slidably connected to the contact box, and the block is connected to the spring post, the second lead post is connected to the movable contact, and the second lead post is slidably connected to the chute, so A telescopic motor is arranged below the movable contact, and a wedge is connected to the output shaft of the telescopic motor, and the telescopic motor is electrically connected to a controller.

Preferably, the length of the spring column is greater than the length of the slot.

Preferably, both the first lead post and the second lead post are provided with lead holes, and wires are connected in the lead holes.

Preferably, the controller includes control buttons and a display screen.

In the utility model, the clamping block is slidingly connected with the contact box, and the clamping block is connected with the spring column. A telescopic motor is arranged under the moving contact, and a wedge is connected to the output shaft of the telescopic motor. A controller is used to control the extension of the telescopic motor. Long, the wedge squeezes the moving contact so that the moving contact moves in the direction of the static contact in the contact box and contacts the static contact to achieve the effect of closing the switch. When the telescopic motor is retracted, the wedge is retracted and the spring column squeezes The pressing block moves the moving contact away from the static contact, and the switch is disconnected. The above design has a simple structure and low cost. Remote operation through the controller can avoid the harm of high voltage to the human body and has high safety performance. , easy to promote and use.

Description of drawings

Fig. 1 is a schematic diagram of a switch-off structure of an indoor high-voltage safety isolating switch proposed by the utility model;

Fig. 2 is a sectional view of a contact box of an indoor high-voltage safety isolating switch proposed by the utility model;

Fig. 3 is a top view structural diagram of an indoor high-voltage safety isolating switch proposed by the utility model;

Fig. 4 is a schematic diagram of a switch closing structure of an indoor high-voltage safety isolating switch proposed by the utility model.

In the figure: 1 housing, 2 chute, 3 static contact, 4 first lead post, 5 contact box, 6 moving contact, 7 block, 8 spring post, 9 second lead post, 10 wedge, 11 telescopic motor, 12 controller.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-4, an indoor high-voltage safety isolating switch includes a housing 1, a chute 2 is provided on the top side of the housing 1, a static contact 3 is fixed inside the housing 1, and the static contact 3 One side is connected with the first lead post 4, and the first lead post 4 extends to the outside of the housing 1, and the side of the static contact 3 away from the first lead post 4 is provided with a contact box 5, and the contact box 5 is A cylindrical box with openings at both ends, a cylindrical opening is provided on the contact box 5, and a moving contact 6 is provided in the card slot, and card slots are provided above and below the card slot, and the card slot is embedded There is a spring column 8, and the outer wall of the movable contact 6 is sleeved with a block 7, which is slidingly connected with the contact box 5, and the block 7 is connected with the spring column 8, and the second lead wire is connected to the movable contact 6 column 9, and the second lead column 9 is slidingly connected with the chute 2, a telescopic motor 11 is provided under the movable contact 6, and a wedge 10 is connected to the output shaft of the telescopic motor 11, and the telescopic motor 11 is electrically connected with a control device 12, the block 7 is slidingly connected with the contact box 5, and the block 7 is connected with the spring column 8, and the telescopic motor 11 is arranged under the movable contact 6, and the output shaft of the telescopic motor 11 is connected with a wedge 10. The controller 12 controls the extension of the telescopic motor 11, and the wedge 10 squeezes the movable contact 6, so that the movable contact 6 moves in the direction of the static contact 3 in the contact 5, and contacts with the static contact 3, so as to achieve the closing position of the switch. As a result, when the telescopic motor 11 is retracted, the wedge 10 is retracted, the spring column 8 squeezes the block 7, and the movable contact 6 is moved away from the static contact 3, and the switch is turned off. The above design has a simple structure and low cost , Remote operation through the controller can avoid the harm of high voltage to the human body, has high safety performance, and is easy to promote and use.

In the utility model, the length of the spring column 8 is greater than the length of the slot, the first lead column 4 and the second lead column 9 are provided with lead holes, and wires are connected in the lead holes, and the controller 12 includes control buttons and display screen, block 7 is slidingly connected with contact box 5, and block 7 is connected with spring column 8, telescopic motor 11 is arranged under movable contact 6, and wedge block 10 is connected to the output shaft of telescopic motor 11, and the use control The device 12 controls the extension of the telescopic motor 11, and the wedge 10 squeezes the movable contact 6, so that the movable contact 6 moves in the direction of the static contact 3 in the contact 5, and contacts with the static contact 3, so as to achieve the effect of closing the switch , when the telescopic motor 11 is recovered, the wedge 10 is retracted, the spring column 8 squeezes the block 7, and the movable contact 6 is moved away from the static contact 3, and the switch is turned off. The above design has a simple structure and low cost. Remote operation through the controller can avoid the harm of high-voltage electricity to the human body, has high safety performance, and is easy to popularize and use.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (4)

1. An indoor high-voltage safety isolating switch, including a housing (1), characterized in that a chute (2) is provided on the top side of the housing (1), and the housing (1) is fixed inside There is a static contact (3), and one side of the static contact (3) is connected to a first lead post (4), and the first lead post (4) extends to the outside of the housing (1), the static contact The side of the head (3) away from the first lead post (4) is provided with a contact box (5), and the contact box (5) is a cylindrical box with two ends open, and the contact box (5) is A cylindrical opening is provided, and a moving contact (6) is provided in the card slot, and a card slot is provided above and below the card slot, and a spring column (8) is embedded in the card slot, and the moving contact A block (7) is sleeved on the outer wall of the contact (6), and the block (7) is slidably connected with the contact box (5), and the block (7) is connected with the spring column (8). A second lead post (9) is connected to the moving contact (6), and the second lead post (9) is slidably connected to the chute (2), and a telescopic motor (11) is provided under the moving contact (6). ), and a wedge (10) is connected to the output shaft of the telescopic motor (11), and the telescopic motor (11) is electrically connected to a controller (12). 2 . The indoor high-voltage safety isolating switch according to claim 1 , wherein the length of the spring column ( 8 ) is greater than the length of the slot. 3 . 3. An indoor high-voltage safety isolating switch according to claim 1, characterized in that, the first lead post (4) and the second lead post (9) are provided with lead holes, and inside the lead holes There are wires connected. 4. The indoor high-voltage safety isolating switch according to claim 1, characterized in that the controller (12) includes control buttons and a display screen.