CN219180443U

CN219180443U - Air switch capable of preventing error closing

Info

Publication number: CN219180443U
Application number: CN202320240697.4U
Authority: CN
Inventors: 裴常富; 雷浩; 王安琪; 苏方伟; 刘艳晓; 李文雅; 杨国众; 陈安峰; 刘印丽; 琚斌
Original assignee: Huaneng Qinbei Power Generation Co Ltd
Current assignee: Huaneng Qinbei Power Generation Co Ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-13
Anticipated expiration: 2033-02-17

Abstract

The utility model discloses an anti-misoperation air switch, which comprises an air switch main body and a signboard, wherein the air switch main body comprises a pull switch and an auxiliary contact, a mounting cylinder is fixedly arranged on the front side of the air switch main body, a spring is arranged in the mounting cylinder and positioned on the front side of the air switch main body, a connecting block is fixedly arranged at one end of the spring, the connecting block penetrates out of the mounting cylinder, a hook is fixedly arranged on one side of the front side of a rotating plate, and clamping grooves are formed in one side and the bottom of the mounting cylinder; according to the utility model, the rotatable rotating plate is arranged, so that the rotating plate is in a horizontal state when the switch-on is required, is in a vertical state when people are warned not to switch-on, is pressed on the outer side of the switch-off, plays a role in warning, and simultaneously prevents the auxiliary contacts of the signboard, which are mostly hung on the air switch in a factory, from being damaged, thereby protecting the personal safety of staff.

Description

Air switch capable of preventing error closing

Technical Field

The utility model relates to the field of air switches, in particular to an anti-misoperation air switch.

Background

An air switch, also known as an air circuit breaker, is one type of circuit breaker. Is a switch that automatically opens whenever the current in the circuit exceeds the rated current. An air switch is an important electrical appliance in a low-voltage distribution network and an electric traction system, and integrates control and various protection functions. Besides the contact and breaking of the circuit, the motor can also protect short circuits, serious overload, undervoltage and the like of the circuit or electric equipment, and can be used for starting the motor infrequently.

At present, after the air switch has a power failure, in order to ensure personal safety of staff, a signboard which is used for 'forbidden closing and has a person to work' needs to be hung, but the signboard is mostly hung on an auxiliary contact on the air switch in a factory, and the auxiliary contact is easy to damage in the long term, so the air switch capable of preventing the false closing is provided for solving the problem.

Disclosure of Invention

The utility model aims to provide an air switch capable of preventing false closing, which aims to solve the problems that after the air switch provided in the background art fails, in order to ensure personal safety of staff, a signboard which is used for 'prohibiting closing and having a person to work' needs to be hung, but the signboard is mostly hung on an auxiliary contact on the air switch in a factory building, and the auxiliary contact is easy to damage in the past for a long time.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an air switch that mistake was prevented closing, includes air switch main part and signboard, the air switch main part includes switch and auxiliary contact, the front side fixed mounting of air switch main part has a mounting cylinder, the front side of air switch main part just is located the inside of mounting cylinder and is provided with the spring, the one end fixed mounting of spring has the connecting block, the mounting cylinder is worn out to the connecting block, one side fixed mounting of connecting block has the revolving plate, the front side one side fixed mounting of revolving plate has the couple, the draw-in groove has all been seted up to one side and the bottom of mounting cylinder, the last change groove that just is located between two draw-in grooves of mounting cylinder, two draw-in grooves of change groove all communicate with each other, one side fixed mounting of mounting cylinder has the stopper, the stopper inserts the inside of one of them draw-in groove, the signboard is hung through the string and is established on the revolving plate.

As still further aspects of the utility model: the inside that just is located the spring of air switch main part is provided with the telescopic link, the telescopic link includes sleeve and slide bar, telescopic one end is passed through the bearing frame and is rotated with the air switch main part and is connected, telescopic inside sliding connection has the slide bar, the one end and the connecting block fixed connection of slide bar, the one end and the telescopic link fixed connection of spring.

As still further aspects of the utility model: the size of the clamping groove is matched with the size of the limiting block.

As still further aspects of the utility model: the size of the rotating groove is matched with the size of the limiting block.

As still further aspects of the utility model: the rotating plate is made of rigid materials.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the rotatable rotating plate is arranged, so that the rotating plate is in a horizontal state when the switch-on is required, is in a vertical state when people are warned not to switch-on, is pressed on the outer side of the switch-off, plays a role in warning, and simultaneously prevents the auxiliary contacts of the signboard, which are mostly hung on the air switch in a factory, from being damaged, thereby protecting the personal safety of staff.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a top cross-sectional view of the present utility model.

Fig. 3 is a partial cross-sectional view of the present utility model.

Fig. 4 is an enlarged view of the utility model at a in fig. 2.

Fig. 5 is a diagram of the operation state in the present utility model.

1. An air switch body; 2. pulling a brake; 3. a hook; 4. a rotating plate; 5. a telescopic rod; 6. a spring; 7. a mounting cylinder; 8. a connecting block; 9. a rotary groove; 10. a limiting block; 11. a signboard; 12. an auxiliary contact; 13. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, in an embodiment of the utility model, an air switch capable of preventing incorrect closing comprises an air switch main body 1 and a signboard 11, wherein the air switch main body 1 comprises a pull switch 2 and an auxiliary contact 12, a mounting cylinder 7 is fixedly mounted on the front side of the air switch main body 1, a spring 6 is arranged in the mounting cylinder 7, a connecting block 8 is fixedly mounted at one end of the spring 6, the connecting block 8 penetrates out of the mounting cylinder 7, a rotating plate 4 is fixedly mounted on one side of the connecting block 8, a hook 3 is fixedly mounted on one side of the front side of the rotating plate 4, clamping grooves 13 are formed in one side and the bottom of the mounting cylinder 7, a rotating groove 9 is formed in the mounting cylinder 7 and between the two clamping grooves 13, the two clamping grooves 13 are communicated, a limiting block 10 is fixedly mounted on one side of the mounting cylinder 7, the limiting block 10 is inserted into the inner part of one clamping groove 13, and the signboard 11 is hung on the rotating plate 4 through a hanging rope.

The front side of air switch main part 1 just is located the inside of spring 6 and is provided with telescopic link 5, and telescopic link 5 includes sleeve and slide bar, and telescopic one end is passed through the bearing frame and is rotated with air switch main part 1 and be connected, telescopic inside sliding connection has the slide bar, and the one end and the connecting block 8 fixed connection of slide bar, the one end and the telescopic link 5 fixed connection of spring 6 have strengthened the stability of installation.

The size of the clamping groove 13 is matched with the size of the limiting block 10, so that stability during clamping is enhanced.

The size of the rotating groove 9 is matched with the size of the limiting block 10, so that stability in rotation is enhanced.

The rotating plate 4 is made of a rigid material, so that the rigidity of the structure is enhanced.

The working principle of the utility model is as follows:

when the air switch is used, after the air switch main body 1 is powered off, the rotating plate 4 is pulled outwards horizontally, the sliding rod of the telescopic rod 5 is driven to be pulled out from the sleeve and the spring 6 is driven to be stretched in the moving process of the rotating plate 4, meanwhile, the limiting block 10 is pulled out along with the connecting block 8, when the position of the limiting block 10 corresponds to the position of the rotating groove 9 and the inner side edge of the rotating plate 4 is positioned at the outer side of the pull switch 2, the rotating plate 4 is rotated clockwise, at the moment, the telescopic rod 5, the spring 6, the connecting block 8 and the limiting block 10 rotate along with the rotating plate 4 until the limiting block 10 rotates to correspond to the position of the other clamping groove 13, the rotating plate 4 is slowly released, at the moment, the limiting block 10 is clamped into the other clamping groove 13 under the action of the spring 6, at the moment, the page of the rotating plate 4 is just pressed at the outer side of the pull switch 2, the signboard 11 is hung on the hook 3, the warning effect is achieved, the auxiliary contacts are prevented from being damaged, and the personal safety of workers is protected.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides an air switch that mistake of preventing closes, includes air switch main part (1) and signboard (11), its characterized in that: the utility model provides an air switch main part (1) is including switch (2) and auxiliary contact (12), the front side fixed mounting of air switch main part (1) has a mounting cylinder (7), the front side of air switch main part (1) just is located the inside of mounting cylinder (7) and is provided with spring (6), the one end fixed mounting of spring (6) has connecting block (8), mounting cylinder (7) are worn out to connecting block (8), one side fixed mounting of connecting block (8) has rotating plate (4), the front side one side fixed mounting of rotating plate (4) has couple (3), draw-in groove (13) have all been seted up to one side and the bottom of mounting cylinder (7), on mounting cylinder (7) and be located and set up change groove (9) between two draw-in grooves (13), one side fixed mounting of mounting cylinder (7) has stopper (10), stopper (10) insert to the inside of one of them draw-in groove (13), sign (11) are established on rotating plate (4) through hanging the rope.

2. An air switch for preventing false closing as defined in claim 1, wherein: the air switch is characterized in that a telescopic rod (5) is arranged at the front side of the air switch main body (1) and positioned in the spring (6), the telescopic rod (5) comprises a sleeve and a sliding rod, one end of the sleeve is rotationally connected with the air switch main body (1) through a bearing seat, the sliding rod is slidably connected with the sleeve, one end of the sliding rod is fixedly connected with the connecting block (8), and one end of the spring (6) is fixedly connected with the telescopic rod (5).

3. An air switch for preventing false closing as defined in claim 1, wherein: the size of the clamping groove (13) is matched with the size of the limiting block (10).

4. An air switch for preventing false closing as defined in claim 1, wherein: the size of the rotating groove (9) is matched with the size of the limiting block (10).

5. An air switch for preventing false closing as defined in claim 1, wherein: the rotating plate (4) is made of a rigid material.