CN210430683U

CN210430683U - Vacuum circuit breaker safety limit structure

Info

Publication number: CN210430683U
Application number: CN201921277313.6U
Authority: CN
Inventors: 杨龙海; 赵文进; 杨黎强
Original assignee: Gaiqi Switch Shanghai Co Ltd
Current assignee: Jiyi Switch Shanghai Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-04-28
Anticipated expiration: 2029-08-06

Abstract

The utility model relates to a vacuum circuit breaker safety limit structure, this limit structure inject the removal of the handle on the chassis car, should include: the limiting plate is installed on the inner side of a handle on the chassis vehicle by the limiting plate fixing device, and the handle is connected with a locking plate on the chassis vehicle. And a key lock is additionally arranged on the limit plate. When the personnel maloperation removed chassis car handle, the limiting plate withstood the handle at the handle inboard, made it unable removal. When the handle is correctly operated, the handle can be moved only by unscrewing the bolt and detaching the limiting plate. Thereby realizing safe limit; a key lock can be additionally arranged on the limiting plate, a designated safety operator holds a key, and the safety operation of a specially-assigned person is further realized.

Description

Vacuum circuit breaker safety limit structure

Technical Field

The utility model relates to a limit structure, concretely relates to when personnel maloperation removed chassis car handle, the limiting plate withstood the handle in the handle inboard, made the unable vacuum circuit breaker safety limit structure who removes of limiting plate.

Background

The left side and the right side of a chassis vehicle of the circuit breaker are respectively provided with a handle, and the handles are connected with a locking plate. The locking plate can stretch out and draw back along with the movement of the handles at the left side and the right side of the chassis vehicle to the middle-two sides of the chassis vehicle.

When the circuit breaker is placed in the switch cabinet, the two handles of the chassis car need to be moved towards the middle of the chassis car first, so that the locking plates on the two sides are contracted. After the circuit breaker is placed in the switch cabinet, the two handles of the chassis truck are respectively moved to the two sides of the chassis truck so as to extend out the locking plates on the two sides, and the locking plates are inserted into the locking holes in the guide rails of the switch cabinet so as to lock the test position of the circuit breaker in the switch cabinet.

In the use of the circuit breaker, the personnel need to be prevented from moving the handles at two sides of the chassis vehicle at will, and therefore misoperation causes that the circuit breaker is pushed or moved out all the time and falls down to cause accidents.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model discloses a main aim at one kind when personnel maloperation removes chassis car handle, the limiting plate withstands the handle in the handle inboard, makes the unable vacuum circuit breaker safety limit structure who removes of limiting plate.

The utility model discloses a solve above-mentioned technical problem through following technical scheme: a vacuum circuit breaker safety stop structure that limits movement of a handle on a chassis, the vacuum circuit breaker safety stop structure comprising: the limiting plate is installed on the inner side of a handle on the chassis vehicle by the limiting plate fixing device, and the handle is connected with a locking plate on the chassis vehicle.

In a specific embodiment of the present invention; the limiting plates comprise two limiting plates and are arranged on the inner sides of the handles on the two sides of the chassis vehicle.

In a specific embodiment of the present invention; the distance ranges between the two sides of the limiting plate and the two ends of the handle are respectively as follows: 1-3 mm.

In a specific embodiment of the present invention; the distance between the two sides of the limiting plate and the two ends of the handle is respectively as follows: 2 mm.

In a specific embodiment of the present invention; the limiting plate fixing device is a screw, a mounting hole is formed in the limiting plate, a threaded hole is formed in the inner side of the handle on the chassis vehicle, and the threaded hole corresponds to the mounting hole in the limiting plate in size.

In a specific embodiment of the present invention; and a key lock is additionally arranged on the limit plate.

In a specific embodiment of the present invention; the thickness range of the limiting plate is as follows: 0.5-1 mm.

The utility model discloses an actively advance the effect and lie in: the utility model provides a vacuum circuit breaker safety limit structure has following advantage: the utility model provides a vacuum circuit breaker safety limit structure, when personnel's maloperation removed chassis car handle, the limiting plate withstood the handle in the handle inboard, made it unable removal. When the handle is correctly operated, the handle can be moved only by unscrewing the bolt and detaching the limiting plate. Thereby realizing safe limit; a key lock can be additionally arranged on the limiting plate, a designated safety operator holds a key, and the safety operation of a specially-assigned person is further realized.

Drawings

Fig. 1 is a schematic structural diagram of the installation position of the present invention.

Fig. 2 is a schematic view of the installation position of the limit plate.

Fig. 3 is a schematic view showing the moving direction of the handle.

Fig. 4 is a schematic diagram of the limiting plate after the installation is completed.

Fig. 5 is a schematic structural diagram of the limiting plate.

Fig. 6 is a schematic structural view of the installation position of the guide rail in the switch cabinet.

Fig. 7 is a schematic structural view of the guide rail.

The utility model discloses the name that well reference numeral corresponds:

limiting plate 1, limiting plate fixing device 2, chassis car 3, handle 4, jam plate 5, mounting hole 6, screw hole 7, circuit breaker 8, cubical switchboard 9, guide rail 10.

Detailed Description

The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.

Fig. 1 is the utility model discloses a mounted position's schematic structure diagram, fig. 2 is the mounted position schematic diagram of limiting plate, and fig. 3 is handle moving direction schematic diagram. Referring to fig. 1-3, the left and right sides of the chassis of the circuit breaker are respectively provided with a handle, and the handles are connected with a locking plate. The locking plate can stretch out and draw back along with the movement of the handles at the left side and the right side of the chassis vehicle to the middle-two sides of the chassis vehicle.

When the circuit breaker 8 is placed in the switch cabinet 9, the two handles of the chassis car need to be moved to the middle of the chassis car first, so as to contract the locking plates 5 on the two sides. After the circuit breaker 8 is placed in the switch cabinet 9, the two handles of the chassis are respectively moved towards the two sides of the chassis, so that the locking plates 5 on the two sides are extended, and the locking plates 5 are inserted into the locking holes 11 (see fig. 6 and 7) on the guide rail 10 of the switch cabinet, so that the test position of the circuit breaker in the switch cabinet is locked.

At present, no related safety limiting structure exists, a circuit breaker is locked at a test position in a switch cabinet, and personnel cannot move handles on two sides of a chassis at will.

Fig. 4 is a schematic diagram of the installed limiting plate, and fig. 5 is a schematic diagram of the structure of the limiting plate, as shown in fig. 4-5: the utility model provides a vacuum circuit breaker safety limit structure, this limit structure inject the removal of the handle on the chassis car, and this vacuum circuit breaker safety limit structure includes: limiting plate 1, limiting plate fixing device 2 adopt limiting plate fixing device 2 to install limiting plate 1 in the inboard of handle 4 on chassis car 3, and locking plate 5 on the chassis car 3 is connected to handle 4.

In a specific implementation, referring to fig. 4, the limiting plate 1 comprises two pieces, and the limiting plate 1 is installed on the inner side of the handles on both sides of the chassis 3.

The distance ranges between the two sides of the limiting plate 1 and the two ends of the inner side of the handle 4 are respectively as follows: 1-3mm, preferably 2 mm.

In specific implementation, the limiting plate fixing device is a screw, the limiting plate 1 is provided with a mounting hole 6, and the inner side of the handle on the chassis 3 is provided with a threaded hole 7 corresponding to the size of the mounting hole 6 on the limiting plate.

In a specific implementation process, in order to ensure absolute safety, a key lock can be additionally arranged on the limiting plate, a designated safety operator holds a key, and further safety operation of a specially-assigned person is achieved.

In a specific implementation process, the thickness range of the limiting plate is as follows: 0.5-1mm, and in specific implementations, other parameters may be set as desired.

When the personnel maloperation removed chassis car handle, the limiting plate withstood the handle at the handle inboard, made it unable removal. When the handle is correctly operated, the handle can be moved only by unscrewing the bolt and detaching the limiting plate. Thereby realizing safe limit; a key lock can be additionally arranged on the limiting plate, a designated safety operator holds a key, and the safety operation of a specially-assigned person is further realized.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a vacuum circuit breaker safety limit structure which characterized in that: this limit structure prescribes a limit to the removal of the handle on the chassis car, vacuum circuit breaker safety limit structure includes: the limiting plate is installed on the inner side of a handle on the chassis vehicle by the limiting plate fixing device, and the handle is connected with a locking plate on the chassis vehicle.

2. The safety limit structure of a vacuum circuit breaker according to claim 1, wherein: the limiting plates comprise two limiting plates and are arranged on the inner sides of the handles on the two sides of the chassis vehicle.

3. The safety limit structure of a vacuum circuit breaker according to claim 2, wherein: the distance ranges between the two sides of the limiting plate and the two ends of the handle are respectively as follows: 1-3 mm.

4. The safety limit structure of a vacuum circuit breaker according to claim 3, wherein: the distance between the two sides of the limiting plate and the two ends of the handle is respectively as follows: 2 mm.

5. The safety limit structure of a vacuum circuit breaker according to claim 1, wherein: the limiting plate fixing device is a screw, a mounting hole is formed in the limiting plate, a threaded hole is formed in the inner side of the handle on the chassis vehicle, and the threaded hole corresponds to the mounting hole in the limiting plate in size.

6. The safety limit structure of a vacuum circuit breaker according to claim 1, wherein: and a key lock is additionally arranged on the limit plate.

7. The safety limit structure of a vacuum circuit breaker according to claim 1, wherein: the thickness range of the limiting plate is as follows: 0.5-1 mm.