CN216084774U

CN216084774U - Manual and electric switching interlocking device of circuit breaker with simple safety and structure

Info

Publication number: CN216084774U
Application number: CN202120880200.6U
Authority: CN
Inventors: 许清辉
Original assignee: Zhuhai Dingguan Electric Co ltd
Current assignee: Zhuhai Dingguan Electric Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2022-03-18
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a manual and electric switching interlocking device of a circuit breaker, which has simple safety and structure, and belongs to the technical field of power transmission and distribution equipment.

Description

Manual and electric switching interlocking device of circuit breaker with simple safety and structure

Technical Field

The utility model relates to the technical field of power transmission and distribution equipment, in particular to a breaker manual and electric switching interlocking device with simple safety and structure.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, the boundary line of the high voltage and the low voltage is divided more clearly, the circuit breaker is generally called as a high-voltage electrical appliance with the voltage of more than 3kV, the circuit breaker can be used for distributing electric energy, an asynchronous motor is not frequently started, a power supply circuit, the motor and the like are protected, when the circuit breaker has faults of serious overload, short circuit, undervoltage and the like, the circuit breaker can be automatically cut off, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like.

However, in the maintenance and overhaul of the existing mechanism, when an operator operates the energy storage gear operating shaft by using the operating handle, the motor of the mechanism must be cut off to be powered on, and the motor of the mechanism can automatically operate and drive the gear energy storage shaft to operate after being powered on, so that the energy storage gear operating shaft is manually pulled by the operator and driven by the motor to be asynchronous, and the operator can be hit by the manual pulling operating handle. The personnel injury is generated, and the potential safety hazard exists.

Based on the above, the utility model designs the manual and electric switching interlocking device of the circuit breaker, which has simple safety and structure, so as to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a circuit breaker manual and electric switching interlocking device with simple safety and structure, which aims to solve the problem that in the maintenance and overhaul of the conventional mechanism in the background art, when a person operates an energy storage gear operating shaft by using an operating handle, the power of a mechanism motor is cut off, and the mechanism motor can automatically operate and drive the gear energy storage shaft to operate after being powered on, so that the energy storage gear operating shaft is manually pulled by the operator and the energy storage gear operating shaft is driven by the motor to be asynchronous, and the operator can be hit by the hand-pulling operating handle. The personnel injury is generated, and the potential safety hazard is caused.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a manual electronic switching interlock of circuit breaker that security and structure are simple and easy, includes operation micro-gap support, there is micro-gap travel switch terminal surface lower part through the screw before the operation micro-gap support, the micro-gap travel switch up end rotates through L shape pole and is connected with the runner, terminal surface upper portion is connected with the operation axle roof through the pivot rotation before the operation micro-gap support, the terminal surface runs through before the operation micro-gap support and installs energy storage gear operation axle.

As a further scheme of the utility model, the front end surface of the energy storage gear operating shaft is provided with a prismatic groove.

As a further scheme of the utility model, the front end face of the operating micro-motion bracket is connected with an inner hexagonal socket head cap screw in a penetrating way.

As a further scheme of the utility model, the front part of the outer surface wall of the rotating shaft is sleeved and connected with an opening check ring.

Advantageous effects

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

insert the prismatic inslot of manual energy storage gear operating shaft front end of operating handle insertion mechanism, it drives energy storage gear operating shaft and rotates to rotate operating handle, and then can touch the operating shaft roof, make the operating shaft roof rotate clockwise, thereby extrude the runner downwards, and then make L shape pole take place deformation and then touch fine motion travel switch, make its switch-on switch cut off motor power supply, when extracting operating handle, the operating shaft roof is restored to the throne by L shape pole elastic potential energy and promotes and then anticlockwise rotation, leave fine motion travel switch, make circuit breaker motor circular telegram, safe and reliable comes automatic control mechanism motor power supply shutdown function, make can the shutdown mechanism power when personnel insert operating handle, mechanism motor is automatic to go on when extracting operating handle after the operation, the potential safety hazard when eliminating the maintenance and detecting manual operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a left-side view of the overall structure of the present invention;

fig. 3 is a schematic view of the disassembled structure of the parts of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-operating a micro-motion bracket, 2-screws, 3-micro-motion travel switches, 4-L-shaped rods, 5-rotating wheels, 6-rotating shafts, 7-operating shaft top plates, 8-energy storage gear operating shafts, 9-prismatic grooves, 10-inner hexagonal cylindrical head screws and 11-split retainer rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

the first embodiment is as follows:

a breaker manual and electric switching interlocking device with simple safety and structure comprises an operation micro-motion bracket 1, a micro-motion travel switch 3 is arranged on the lower portion of the front end face of the operation micro-motion bracket 1 through a screw 2, a rotating wheel 5 is rotatably connected on the upper end face of the micro-motion travel switch 3 through an L-shaped rod 4, an operation shaft top plate 7 is rotatably connected on the upper portion of the front end face of the operation micro-motion bracket 1 through a rotating shaft 6, an energy storage gear operation shaft 8 is penetratingly arranged on the front end face of the operation micro-motion bracket 1, a prismatic groove 9 is arranged on the front end face of the energy storage gear operation shaft 8, an inner hexagonal head screw 10 is penetratingly connected on the front end face of the operation micro-motion bracket 1, an opening check ring 11 is sleeved and connected on the front portion of the outer surface wall of the rotating shaft 6, an operation handle is inserted into the prismatic groove 9 at the front end of the manual energy storage gear operation shaft 8 through the micro-motion travel switch 3, the L-shaped rod 4, the rotating wheel 5, the operation shaft top plate 7, the energy storage gear operation shaft 8 and the rotating shaft 6 are mutually matched, rotate operating handle and drive energy storage gear operating shaft 8 and rotate, and then can touch operating shaft roof 7, make operating shaft roof 7 clockwise rotation, thereby extrude runner 5 downwards, and then make L shape pole 4 take place deformation and then touch fine motion travel switch 3, make its switch-on switch cut off motor power supply, when extracting operating handle, operating shaft roof 7 is reset by L shape pole 4 elastic potential energy and promotes and then anticlockwise rotation, leave fine motion travel switch 3, make the circular telegram of circuit breaker motor.

One specific application of this embodiment is:

when the energy-saving type circuit breaker is used, the operating handle is inserted into the prismatic groove 9 at the front end of the manual energy-storing gear operating shaft 8 of the mechanism, the operating handle is rotated to drive the energy-storing gear operating shaft 8 to rotate, and then the operating shaft top plate 7 is touched, so that the operating shaft top plate 7 rotates clockwise, the rotating wheel 5 is extruded downwards, the L-shaped rod 4 is deformed, the micro travel switch 3 is touched, the power supply of a motor is cut off by the L-shaped rod 4, when the operating handle is pulled out, the operating shaft top plate 7 is reset and pushed by the elastic potential energy of the L-shaped rod 4 to rotate anticlockwise, the micro travel switch 3 is separated, and the motor of the circuit breaker is electrified. The utility model can safely and reliably automatically control the power supply cutting-off function of the mechanism motor, so that the mechanism power supply can be automatically cut off when a person inserts the operating handle, and the mechanism motor is automatically powered on when the operating handle is pulled out after the operation is finished, thereby eliminating the potential safety hazard when the maintenance and detection are carried out manually.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a manual electronic switching interlock of circuit breaker that security and structure are simple and easy, includes operation fine motion support (1), its characterized in that: the operation micro-gap support (1) is preceding the terminal surface lower part and is installed micro-gap travel switch (3) through screw (2), micro-gap travel switch (3) up end is rotated through L shape pole (4) and is connected with runner (5), terminal surface upper portion is rotated through pivot (6) before operation micro-gap support (1) and is connected with operation axle roof (7), terminal surface runs through before operation micro-gap support (1) and installs energy storage gear operating axis (8).

2. The manual and electric switching interlocking device of the circuit breaker with the simple structure and the safety as claimed in claim 1, is characterized in that: the front end face of the energy storage gear operating shaft (8) is provided with a prismatic groove (9).

3. The manual and electric switching interlocking device of the circuit breaker with the simple structure and the safety as claimed in claim 1, is characterized in that: the front end face of the operation micro-motion bracket (1) is connected with an inner hexagonal socket head cap screw (10) in a penetrating way.

4. The manual and electric switching interlocking device of the circuit breaker with the simple structure and the safety as claimed in claim 1, is characterized in that: the front part of the outer surface wall of the rotating shaft (6) is sleeved and connected with an opening check ring (11).