CN215118750U - Manual operation power-off interlocking device of breaker of environment-friendly gas insulated switchgear - Google Patents
Manual operation power-off interlocking device of breaker of environment-friendly gas insulated switchgear Download PDFInfo
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- CN215118750U CN215118750U CN202121381788.7U CN202121381788U CN215118750U CN 215118750 U CN215118750 U CN 215118750U CN 202121381788 U CN202121381788 U CN 202121381788U CN 215118750 U CN215118750 U CN 215118750U
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- top block
- circuit breaker
- guide support
- support piece
- reset spring
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Abstract
The utility model discloses an environment-friendly manual operation power-off interlocking device of a gas insulated switchgear breaker, which comprises a handle, a rotating support piece, a top block, a connecting piece, a guide support piece, a reset spring and a microswitch; the handle is in driving connection with the rotating support piece; the rotating support is arranged on the guide support and is in control connection with the connecting piece; the connecting piece is arranged in the top block and is matched and connected with the reset spring, and the connecting piece is driven by the rotating support piece to axially move in a first direction in the top block and compress the reset spring; the reset spring is connected with the top block in a matching way, and pushes the top block to axially move in a first direction; the top block is arranged in the guide support piece and is provided with a microswitch along a first direction; the top block is pushed by a return spring to axially move in a first direction along the guide support piece and trigger the microswitch; the micro switch is matched and connected with a motor power supply to be constructed; when the micro switch is triggered, the micro switch is disconnected with a motor power supply to be constructed.
Description
Technical Field
The utility model relates to the technical field of mechanical device, concretely relates to electricity interlock is cut in manual operation of environmental protection gas insulated switchgear circuit breaker.
Background
In the field of medium-voltage power transmission and distribution equipment, the circuit breaker of the environment-friendly gas-insulated switchgear generally has two modes of electric operation and manual operation, an energy storage motor used in the circuit breaker is provided with a speed reducing device, the speed reducing device is provided with a manual energy storage operating rod, and the function of cutting off a motor power supply is not usually performed in the manual energy storage process through the manual operating rod of the motor speed reducing device.
In the manual operation process, the power is switched on by misoperation of the motor side, or the operating handle is forgotten to be taken down after the manual operation is completed, so that the operating handle can injure an operator once the motor runs, or the operating handle is thrown away to injure personnel or equipment, and a safety accident is caused.
Therefore, how to improve the safety of the environment-friendly gas insulated switchgear circuit breaker in the manual operation process is a problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not high technical problem of security in manual operation process to current environmental protection gas insulated switchgear circuit breaker, the utility model aims to provide an electric interlock is cut in environmental protection gas insulated switchgear circuit breaker manual operation, its structural layout to original, and the novel circuit breaker manual operation who provides cuts electric interlock guarantees that the manual operation handle does not take off, and the motor can not move, has guaranteed the security among the manual operation process.
In order to achieve the purpose, the utility model provides an environment-friendly manual operation switching-off interlocking device of a gas insulated switchgear circuit breaker, which comprises a handle, a rotating support member, a top block, a connecting member, a guide support member, a reset spring and a microswitch;
the handle is in driving connection with the rotating support piece; the rotating support is arranged on the guide support and is in driving connection with the connecting piece;
the connecting piece is arranged in the ejector block and is in matched connection with the reset spring, and the connecting piece is driven by the rotating support piece to axially move in a first direction in the ejector block and compress the reset spring;
the reset spring is connected with the top block in a matching way, and when the reset spring is compressed, the top block is pushed to axially move in a first direction;
the top block is arranged in the guide support piece and is provided with a microswitch along a first direction; the top block is pushed by the compression force of the return spring to axially move in a first direction along the guide support piece and trigger the microswitch;
the micro switch is connected with a power supply of a circuit breaker motor to be constructed in a matching manner; when the micro switch is triggered, the micro switch is disconnected with a power supply of a circuit breaker motor to be constructed.
Furthermore, the guide support is provided with a guide hole for guiding the top block.
Furthermore, a long round hole for the connecting piece to axially move is formed in the middle of the top block.
Furthermore, a limiting component for limiting the moving stroke of the ejector block in the guide support piece is arranged on the ejector block.
Further, the limiting assembly comprises a first elastic pin and a second elastic pin; the first elastic pin and the second elastic pin are respectively arranged on two sides of the guide support guide hole.
Furthermore, an insulating part is arranged on the microswitch.
The utility model provides an environmental protection gas insulated switchgear circuit breaker manually operation cuts off electric interlock, its security that can guarantee manual operation process makes manually operation and motor operation can not be parallel, guarantees that manually operation handle does not take off, and the motor can not operate, has ensured the safety of the person and equipment.
Drawings
The invention is further described with reference to the following drawings and detailed description.
Fig. 1 is a schematic overall structure diagram of the manually operated power-off interlocking device of the circuit breaker;
fig. 2 is a schematic top view of the structure of the manually operated power-off interlock of the circuit breaker;
fig. 3 is a schematic structural section view of the manually operated power-off interlocking device of the circuit breaker.
The following are part numbers in the drawings:
1. breaker motor 2, mounting bracket 3, insulating spacer 4, microswitch 5, top block 6, heavy elastic pin 7, guide support 8, reset spring 9, first bolt 10, second bolt 11, rotating support 12, motor mounting plate 13, frame 14 and handle
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
The current environmental protection gas insulated switchgear circuit breaker does not have the function of cutting off the motor power in manual operation process, has the technical problem of very big potential safety hazard, the utility model discloses based on this technical problem, provide novel circuit breaker manual operation and cut off electric interlock, it can guarantee that manual operation and motor operation can not be parallel, has ensured the safety of the person and equipment.
The novel manual operation power-off interlocking device of the circuit breaker provided by the scheme is as shown in the figures 1-3, and comprises a motor 1, a handle 14, a rotating support 11, a top block 5, a guide support 7, a reset spring 8, a heavy elastic pin 6, a micro switch 4 and a support 2.
Wherein, the motor 1 is a circuit breaker motor 1, and the motor is provided with a manual operating rod; the specific structure is well known to those skilled in the art and will not be described herein.
In order to facilitate the installation and replacement of the motor 1, the motor 1 is firstly installed on the installation plate 12 and fastened by using bolts, and then is integrally installed on the rack 13 of the circuit breaker, and the installation plate 12 and the rack 13 of the circuit breaker are fastened by using bolts.
Further, the mounting bracket 2 is fastened to the mounting plate 12 by two bolts, and is integrally mounted to the breaker frame 13,
the handle 14 is used for matching with the motor 1, and when the motor is applied, the handle 14 is inserted into a manual operating rod of the motor 1 to perform corresponding operation on the manual operating rod; meanwhile, the manual operating rod is in driving connection with the rotating support 11 and is used for driving the rotating support 11 to rotate.
The rotating support 11 is rotatably mounted on the guide support 7 by the first bolt 9, and when the rotating support 11 is driven by the manual operating lever, the rotating support can rotate around the first bolt 9 and drive the top block 5 to rotate.
The top block 5 is connected with the lower part of the rotating support 11 by a second bolt 10; a long round hole is formed in the middle of the top block 5, and the inner cavity of the long round hole is matched with the second bolt 10; when the rotating support 11 is driven by the manual operating rod to rotate, the second bolt 10 connected with the rotating support is driven to axially move in the long round hole in the middle of the top block 5.
Secondly, a limiting component is arranged on the top block 5; the limiting assemblies are two heavy elastic pins which are clamped on two sides of a guide hole of the guide support 7 respectively and used for limiting the stroke of the jacking block 5 in the guide support 7 during axial movement.
The guide support 7 is arranged on a corresponding hole position of the bracket 2 and is fastened through a bolt; which is matched with the top block 5 and is used for guiding the top block 5 to move; the guide support 7 is provided with a guide hole, and the top block 5 can move in the guide hole of the guide support 7. Secondly, two heavy elastic pins 6 on the ejector block 5 are respectively clamped on two sides of a guide hole plate of the guide support 7 and can be used for limiting the stroke of the ejector block in the axial movement of the guide hole of the guide support 7.
One side of the reset spring 8 is pressed on a heavy elastic pin 6 and is in matched connection with the second bolt 10 and the top block 5; when the second bolt 10 moves in the first direction in the long round hole in the middle of the top block 5, the return spring 8 is pushed to compress; when the return spring 8 is compressed, the top block 5 is pushed to move in the first direction in the guide hole of the guide 7.
When the second bolt 10 moves in a second direction in the long round hole in the middle of the top block 5, the return spring returns; when the return spring 8 returns to the original position, the top block 5 is pushed to move in the second direction in the guide hole of the guide support 7.
A microswitch 4 is arranged in the first direction of the movement of the top block 5, and the microswitch 4 is arranged on the mounting bracket 2 after being stacked up with the insulating spacer 3 and is fastened by a bolt; the normally closed power connection of the microswitch 4 is connected in series in a power supply loop of the motor 1; when the top block 5 is driven by the rotating support piece 11 to move along the first direction of the guide hole of the guide support piece 7, the top block pushes against the moving piece of the micro switch 4 after moving for a certain distance, the original normally closed contact is disconnected after the micro switch 4 acts, and the motor 1 cannot be electrically operated after the normally closed contact of the micro switch is disconnected.
When the top block 5 moves in the second direction in the guide hole of the guide support 7, the movable part resetting normally closed contact of the microswitch 4 is changed from open to closed, and after the normally closed contact of the microswitch 4 is closed, clicking can perform normal energy storage operation through electric operation.
The working process of the method in specific application is illustrated as follows:
when the circuit breaker motor 1 is operated by manual energy storage, the handle 14 is inserted into a manual operating rod of the motor 1 to push the rotating support 11 to rotate, and the rotating support 11 rotates around the first bolt 9 and pushes the second bolt 10 to axially move in a first direction in the long round hole of the top block 5.
The second bolt 10 compresses the reset spring 8 when moving in the first direction in the long round hole of the top block 5, the reset spring 8 pushes the top block 5 to axially move in the first direction in the guide hole of the guide support 7 when compressing, and after moving for a certain distance, the second bolt props against the moving part of the microswitch 4, and the original normally closed contact is disconnected after the microswitch 4 acts; after the normally closed contact of the microswitch 4 is disconnected, the motor can not be electrically operated, namely, the motor can only be manually operated.
After the manual operation is finished, the handle 14 is taken down, the handle 14 above the rotating support 11 does not apply pressure to the rotating support, at the moment, the return spring 8 elastically recovers, and the top block 5 axially moves along the guide hole of the guide support 7 in the second direction; at the moment, the rotating branch piece 11 is stressed to recover the original position, the reset normally closed contact of the movable piece of the micro switch 4 is changed from open to closed, and after the normally closed contact of the micro switch 4 is closed, the motor can perform normal energy storage operation through electric operation.
Novel circuit breaker manually operation switching off electric interlock who constitutes by above-mentioned scheme for prior art, this scheme can guarantee the security of manually operation process, makes manually operation and motor operation can not be parallel, guarantees that manually operation handle does not take off, and the motor can not operate, has ensured the safety of the person and equipment.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A manual operation power-off interlocking device of an environment-friendly gas insulation switch cabinet circuit breaker is characterized by comprising a handle, a rotating support piece, a top block, a connecting piece, a guide support piece, a reset spring and a microswitch, wherein the handle is connected with the rotating support piece;
the handle is in driving connection with the rotating support piece; the rotating support is arranged on the guide support and is in driving connection with the connecting piece;
the connecting piece is arranged in the ejector block and is in matched connection with the reset spring, and the connecting piece is driven by the rotating support piece to axially move in a first direction in the ejector block and compress the reset spring;
the reset spring is connected with the top block in a matching way, and when the reset spring is compressed, the top block is pushed to axially move in a first direction;
the top block is arranged in the guide support piece and is provided with a microswitch along a first direction; the top block is pushed by the compression force of the return spring to axially move in a first direction along the guide support piece and trigger the microswitch;
the micro switch is connected with a power supply of a circuit breaker motor to be constructed in a matching manner; when the micro switch is triggered, the micro switch is disconnected with a power supply of a circuit breaker motor to be constructed.
2. The manual-operation switching interlocking device of the circuit breaker of the environment-friendly gas-insulated switchgear as claimed in claim 1, wherein the guide support is provided with a guide hole for guiding the top block.
3. The manually operated switching interlock device according to claim 1, wherein the top block has a long hole in the middle for the connection member to move axially.
4. The manual-operation switching interlocking device of the circuit breaker of the environment-friendly gas-insulated switchgear as claimed in claim 1, wherein a limiting component for limiting the moving stroke of the top block in the guide support is arranged on the top block.
5. The manually operated switching interlock device of claim 4, wherein said limiting assembly comprises a first spring pin and a second spring pin; the first elastic pin and the second elastic pin are respectively arranged on two sides of the guide support guide hole.
6. The manual-operation switching interlocking device of the circuit breaker of the environment-friendly gas-insulated switchgear cabinet as claimed in claim 1, wherein the microswitch is provided with an insulating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121381788.7U CN215118750U (en) | 2021-06-21 | 2021-06-21 | Manual operation power-off interlocking device of breaker of environment-friendly gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121381788.7U CN215118750U (en) | 2021-06-21 | 2021-06-21 | Manual operation power-off interlocking device of breaker of environment-friendly gas insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215118750U true CN215118750U (en) | 2021-12-10 |
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ID=79309724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121381788.7U Active CN215118750U (en) | 2021-06-21 | 2021-06-21 | Manual operation power-off interlocking device of breaker of environment-friendly gas insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215118750U (en) |
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2021
- 2021-06-21 CN CN202121381788.7U patent/CN215118750U/en active Active
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