CN112397324A - Low-voltage circuit breaker safety lock - Google Patents
Low-voltage circuit breaker safety lock Download PDFInfo
- Publication number
- CN112397324A CN112397324A CN201910756057.7A CN201910756057A CN112397324A CN 112397324 A CN112397324 A CN 112397324A CN 201910756057 A CN201910756057 A CN 201910756057A CN 112397324 A CN112397324 A CN 112397324A
- Authority
- CN
- China
- Prior art keywords
- limiting plate
- circuit breaker
- front limiting
- safety lock
- rear limiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1054—Means for avoiding unauthorised release
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Breakers (AREA)
Abstract
The invention discloses a safety lock of a low-voltage circuit breaker, which comprises a front limiting plate, a rear limiting plate and a lock hook, wherein the front limiting plate and the rear limiting plate are mutually rotationally connected, and the lock hook is fixedly connected to one side of the front limiting plate; one end of the front limiting plate is provided with a first abutting part, and the other end of the front limiting plate is provided with a plurality of first locking holes; one end of the rear limiting plate is provided with a second abutting part, and the other end of the rear limiting plate is provided with second locking holes which correspond to the first locking holes one to one; the front limiting plate and the rear limiting plate are mutually opened and rotated, the first interference part and the second interference part are respectively inserted into grooves on two sides of the circuit breaker surface cover, and meanwhile, the latch hook hooks the rear of a circuit breaker handle; the front limiting plate and the rear limiting plate are folded and rotated with each other, at the moment, the first abutting part and the second abutting part clamp the groove of the circuit breaker surface cover, and the circuit breaker is locked by the fixing piece penetrating through the first locking hole and the second locking hole; the breaker handle is restricted so that the handle cannot be closed; the safety of constructors is ensured.
Description
Technical Field
The invention relates to the technical field of locks, in particular to a safety lock of a low-voltage circuit breaker.
Background
When people maintain a circuit in scenes such as at home or in enterprises, a circuit breaker in the circuit needs to be in an off state; in order to ensure that the circuit breaker cannot be closed when maintenance personnel perform maintenance work, an anti-misoperation device must be arranged, and the situations of equipment damage, property loss and casualties are avoided.
The existing circuit breaker adopts a key lock arranged on a shell cover of the circuit breaker, so that the space of the circuit breaker is increased, and accessories cannot be installed on one side of the circuit breaker, thereby causing incomplete functions of the circuit breaker; in addition, the handle of the circuit breaker is not directly locked, and potential safety hazards also exist.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a safety lock of a low-voltage circuit breaker.
In order to achieve the purpose, the invention provides the following technical scheme:
a safety lock of a low-voltage circuit breaker comprises a front limiting plate, a rear limiting plate and a lock hook, wherein the front limiting plate and the rear limiting plate are mutually rotationally connected, and the lock hook is fixedly connected to one side of the front limiting plate;
one end of the front limiting plate is provided with a first abutting part, and the other end of the front limiting plate is provided with a plurality of first locking holes; one end of the rear limiting plate is provided with a second abutting part, and the other end of the rear limiting plate is provided with second locking holes which correspond to the first locking holes one to one;
the front limiting plate and the rear limiting plate are mutually opened and rotated, the first interference part and the second interference part are respectively inserted into grooves on two sides of the circuit breaker surface cover, and meanwhile, the latch hook hooks the rear of a circuit breaker handle; will preceding limiting plate folds the rotation with back limiting plate each other, and at this moment, the recess of first conflict portion and second conflict portion chucking circuit breaker face lid passes first locking hole and second locking hole through the mounting, accomplishes the locking of circuit breaker.
The invention further provides that: the rivet is further included, a first rotating hole is formed in the front limiting plate, a second rotating hole is formed in the rear limiting plate, and the rivet penetrates through the first rotating hole and the second rotating hole.
The invention further provides that: a first limiting block is arranged on one side face of the front limiting plate, a second limiting block is arranged on one side face of the rear limiting block, the first limiting block is matched with the rear limiting plate, and the second limiting block is matched with the front limiting plate.
The invention has the beneficial effects that: the safety lock is arranged on a broken circuit breaker, and the first collision part on the front limiting plate and the second collision part on the rear limiting plate are respectively abutted against the grooves on two sides of the circuit breaker surface cover, so that the handle of the circuit breaker is hooked by the latch hook; the handle of the circuit breaker is limited, so that the handle cannot be closed; the safety of constructors is guaranteed, and meanwhile, the structure and the function of the breaker do not need to be changed due to the fact that the error prevention device is installed, so that the cost of the breaker is not increased.
Drawings
FIG. 1 is a diagram of the state of use of the safety lock of a low-voltage circuit breaker according to the invention;
FIG. 2 is a schematic structural diagram of a safety lock of a low-voltage circuit breaker according to the present invention;
figure 3 is a front view of the safety lock of a low-voltage circuit breaker according to the invention;
description of reference numerals: 1. a front limiting plate; 11. a first interference part; 12. a first locking hole; 13. a first stopper; 2. a rear limiting plate; 21. a second interference part; 22. a second locking hole; 23. a second limiting block; 3. a latch hook.
Detailed Description
An embodiment of the safety lock of a low-voltage circuit breaker according to the invention is described in further detail with reference to the accompanying figures 1 to 3.
A safety lock of a low-voltage circuit breaker comprises a front limiting plate 1, a rear limiting plate 2 and a lock hook 3, wherein the front limiting plate 1 and the rear limiting plate 2 are mutually rotatably connected, and the lock hook 3 is fixedly connected to one side of the front limiting plate 1;
one end of the front limiting plate 1 is provided with a first abutting part 11, and the other end of the front limiting plate is provided with a plurality of first locking holes 12; one end of the rear limiting plate 2 is provided with a second interference part 21, and the other end is provided with second locking holes 22 corresponding to the first locking holes 12 one by one;
the safety lock is used in a disconnected circuit breaker, the front limiting plate 1 and the rear limiting plate 2 are mutually opened and rotated, the linear distance between the first interference part 11 and the second interference part 21 is shortened, the first interference part 11 and the second interference part 21 are respectively inserted into grooves on two sides of a circuit breaker surface cover, and meanwhile, the latch hook 3 hooks the rear of a circuit breaker handle; the front limiting plate 1 and the rear limiting plate 2 are folded and rotated with each other, at the moment, the first interference part 11 and the second interference part 21 clamp the groove of the breaker surface cover, and the breaker handle is locked by a fixing piece penetrating through the first locking hole 12 and the second locking hole 22 (the first locking hole 12 and the second locking hole 22 can be selectively locked by a padlock); the breaker handle is prevented from being closed by mistake, the safety of constructors is guaranteed, and meanwhile, the breaker does not need to be changed in structure and function due to the fact that the error prevention device is installed, so that the cost of the breaker is not increased.
The rivet is further included, the front limiting plate 1 is provided with a first rotating hole, the rear limiting plate 2 is provided with a second rotating hole, and the rivet penetrates through the first rotating hole and the second rotating hole; the front limiting plate 1 and the rear limiting plate 2 are connected into a whole in a rotating mode, so that the safety lock is convenient to install and use, and the structure is stable and firm.
A first limiting block 13 is arranged on one side surface of the front limiting plate 1, a second limiting block 23 is arranged on one side surface of the rear limiting block, the first limiting block 13 is matched with the rear limiting plate 2, and the second limiting block 23 is matched with the front limiting plate 1; when the front limiting plate 1 and the rear limiting plate 2 are folded and rotated to be overlapped, the front limiting plate and the rear limiting plate cannot be rotated and opened continuously, and the installation operation of the safety lock is facilitated.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (3)
1. A low-voltage circuit breaker safety lock, characterized by: the device comprises a front limiting plate, a rear limiting plate and a lock hook, wherein the front limiting plate and the rear limiting plate are mutually rotationally connected, and the lock hook is fixedly connected to one side of the front limiting plate;
one end of the front limiting plate is provided with a first abutting part, and the other end of the front limiting plate is provided with a plurality of first locking holes; one end of the rear limiting plate is provided with a second abutting part, and the other end of the rear limiting plate is provided with second locking holes which correspond to the first locking holes one to one;
the front limiting plate and the rear limiting plate are mutually opened and rotated, the first interference part and the second interference part are respectively inserted into grooves on two sides of the circuit breaker surface cover, and meanwhile, the latch hook hooks the rear of a circuit breaker handle; will preceding limiting plate folds the rotation with back limiting plate each other, and at this moment, the recess of first conflict portion and second conflict portion chucking circuit breaker face lid passes first locking hole and second locking hole through the mounting, accomplishes the locking of circuit breaker.
2. A low-voltage circuit breaker safety lock according to claim 1, characterized in that: the rivet is further included, a first rotating hole is formed in the front limiting plate, a second rotating hole is formed in the rear limiting plate, and the rivet penetrates through the first rotating hole and the second rotating hole.
3. A low-voltage circuit breaker safety lock according to claim 1, characterized in that: a first limiting block is arranged on one side face of the front limiting plate, a second limiting block is arranged on one side face of the rear limiting block, the first limiting block is matched with the rear limiting plate, and the second limiting block is matched with the front limiting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910756057.7A CN112397324A (en) | 2019-08-15 | 2019-08-15 | Low-voltage circuit breaker safety lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910756057.7A CN112397324A (en) | 2019-08-15 | 2019-08-15 | Low-voltage circuit breaker safety lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112397324A true CN112397324A (en) | 2021-02-23 |
Family
ID=74601797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910756057.7A Pending CN112397324A (en) | 2019-08-15 | 2019-08-15 | Low-voltage circuit breaker safety lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112397324A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609768A (en) * | 2008-06-17 | 2009-12-23 | 富士电机机器制御株式会社 | The handle lock device of circuit-breaker and circuit-breaker |
| CN101882540A (en) * | 2010-07-08 | 2010-11-10 | 江苏辉能电气有限公司 | Low-voltage circuit breaker handle locking device and locking method |
| CN106876223A (en) * | 2017-04-20 | 2017-06-20 | 德力西电气有限公司 | A kind of hand locking device and breaker |
-
2019
- 2019-08-15 CN CN201910756057.7A patent/CN112397324A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609768A (en) * | 2008-06-17 | 2009-12-23 | 富士电机机器制御株式会社 | The handle lock device of circuit-breaker and circuit-breaker |
| CN101882540A (en) * | 2010-07-08 | 2010-11-10 | 江苏辉能电气有限公司 | Low-voltage circuit breaker handle locking device and locking method |
| CN106876223A (en) * | 2017-04-20 | 2017-06-20 | 德力西电气有限公司 | A kind of hand locking device and breaker |
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| SE01 | Entry into force of request for substantive examination |