CN112582223B - An inclined wedge installation mechanism for plug-in circuit breaker - Google Patents
An inclined wedge installation mechanism for plug-in circuit breaker Download PDFInfo
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- CN112582223B CN112582223B CN201910927701.2A CN201910927701A CN112582223B CN 112582223 B CN112582223 B CN 112582223B CN 201910927701 A CN201910927701 A CN 201910927701A CN 112582223 B CN112582223 B CN 112582223B
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- driving
- circuit breaker
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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
- H01H71/02—Housings; Casings; Bases; Mountings
-
- 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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
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Abstract
一种插入式断路器的斜楔式安装机构，它包括插入式断路器(A)和机框(B)，其特征在于：还包括锁定机构(C)，所述锁定机构(C)能够对插入式断路器(A)进行锁定或解锁实现其对应的固定安装在所述机框(B)中或在机框(B)中抽插；驱动机构(D)能够推动所述锁定机构(C)对所述插入式断路器(A)进行锁定，解锁机构(E)能够带动所述驱动机构(D)运动从而实现所述锁定机构(C)对所述插入式断路器(A)进行解锁。通过安装机构实现断路器顺利稳定的安装于机框中；同时通过操作安装机构上的操作端，能够将断路器从机框中解锁，轻松地从机框中取出断路器，提高了断路器安装使用的便利性。
An oblique wedge installation mechanism for a plug-in circuit breaker, comprising a plug-in circuit breaker (A) and a frame (B), characterized in that: it also comprises a locking mechanism (C), the locking mechanism (C) can lock or unlock the plug-in circuit breaker (A) to achieve its corresponding fixed installation in the frame (B) or insertion and extraction in the frame (B); a driving mechanism (D) can push the locking mechanism (C) to lock the plug-in circuit breaker (A), and an unlocking mechanism (E) can drive the driving mechanism (D) to move so that the locking mechanism (C) can unlock the plug-in circuit breaker (A). The installation mechanism can be used to smoothly and stably install the circuit breaker in the frame; at the same time, by operating the operating end on the installation mechanism, the circuit breaker can be unlocked from the frame and easily removed from the frame, thereby improving the convenience of installation and use of the circuit breaker.
Description
Technical Field
The invention belongs to the technical field of piezoelectric devices, and particularly relates to a wedge type installation mechanism of a plug-in circuit breaker.
Background
The circuit breaker is classified into a high voltage circuit breaker and a low voltage circuit breaker according to its range of use. The low-voltage breaker is also called automatic switch, which is an electric appliance with manual switch function and automatic overload and short-circuit protection. The device can be used for distributing electric energy, protecting power supply circuits, electric equipment and the like, and can automatically cut off the circuits when serious overload or short circuit and other faults occur, the functions of the device are equivalent to the combination of a fuse type switch, a thermal relay and the like, and parts do not need to be changed after fault current is disconnected, so that the device has wide application.
The circuit breaker is divided into the following mounting modes: the plug-in circuit breaker has plug-in, fixed and drawer type, and the use of plug-in circuit breaker can effectively improve the security of electrical equipment service industry, along with the wide use of plug-in circuit breaker on various electrical equipment, in order to satisfy the installation needs of various different electrical equipment, the structure of plug-in circuit breaker also develops to various types, in the overall arrangement of current traditional circuit breaker product when mounted position, generally adopts elastic component clamping piece to lock the circuit breaker on the guide rail, if need the unblock take off the circuit breaker need rely on additional instrument, the operation is inconvenient.
The chinese patent of publication No. CN104167310a discloses a buckle mechanism of a piezoelectric device and a small-sized circuit breaker, which provides a buckle with an elastic part, the buckle fixes the circuit breaker on an installation guide rail under the action of the elastic part, and when the circuit breaker is taken down, a screwdriver is required to be inserted into a hole at the tail part of the clamping part, and the elasticity of the elastic part is overcome forcefully, so that the buckle and the guide rail are unlocked, and the circuit breaker can be taken down.
Disclosure of Invention
The invention aims at solving the technical defect that the prior plug-in circuit breaker needs to be unlocked by using an additional tool to cause inconvenient operation, and provides a wedge type mounting mechanism of the plug-in circuit breaker, and the circuit breaker is smoothly and stably mounted in a frame through the mounting mechanism; meanwhile, the circuit breaker can be unlocked from the machine frame by operating the operating end on the mounting mechanism, so that the circuit breaker can be easily taken out from the machine frame, and the convenience in mounting and using the circuit breaker is improved.
Technical proposal
In order to achieve the technical purpose, the wedge type installation mechanism of the plug-in circuit breaker provided by the invention comprises the plug-in circuit breaker and a frame, wherein the plug-in circuit breaker can be installed in the frame in a drawing and inserting manner, and is characterized in that: the locking mechanism can lock or unlock the plug-in circuit breaker to realize the corresponding fixed installation in the machine frame or the extraction and insertion in the machine frame;
The locking mechanism is linked with the driving mechanism, the driving mechanism can push the locking mechanism to lock the plug-in circuit breaker, the driving mechanism is linked with the unlocking mechanism, and the unlocking mechanism can drive the driving mechanism to move so as to realize that the locking mechanism unlocks the plug-in circuit breaker.
Further, the locking mechanism comprises a first wedge, the first wedge can slide in a first sliding groove on the circuit breaker shell, one end of the first wedge can penetrate out or retract from an opening formed by the circuit breaker shell and the machine frame correspondingly in the sliding process, the other end of the first wedge can be linked with the driving mechanism, a first spring mounting groove is formed in the first wedge, an unlocking spring is arranged in the first spring mounting groove, one end of the unlocking spring props against a first boss on the circuit breaker shell, and the other end of the unlocking spring props against the inner side end of the first spring mounting groove to enable the first wedge to receive retracting force from the opening.
Further, the driving mechanism comprises a first driving block, wherein the first driving block can slide in a second sliding groove on the circuit breaker shell, one end of the first driving block can be linked with the locking mechanism in the sliding process, the other end of the first driving block can be linked with the unlocking mechanism, a second spring installation groove is formed in the first driving block, one end of the first driving spring is arranged in the second spring installation groove to prop against a second boss on the circuit breaker shell, and the other end of the first driving spring props against the inner side end of the second spring installation groove so that the first driving block receives a first driving force towards one side of the inclined wedge;
Further, a linkage end of a first driving block in the driving mechanism and a first inclined wedge in the locking mechanism is an inclined plane, and a first driving spring abuts against the inner side end of a second spring mounting groove to enable the first driving block to be driven towards one side of the first inclined wedge, and a first unlocking spring abuts against the inner side end of the first spring mounting groove to enable the first inclined wedge to be subjected to retracting force from the opening.
Further, the unlocking mechanism is a button, the button is arranged in a button groove of the circuit breaker shell and can slide, the button can drive a hanging table on a corresponding end of a driving block in the process of sliding outwards in the button groove, so that the driving block I overcomes the inner side end of a driving spring I to prop against a spring mounting groove II, the driving block I receives a driving force I towards one side of the inclined wedge, and the button is separated from the hanging table on the corresponding end of the driving block in the process of sliding inwards in the button groove.
Further, a first limiting block and a second limiting block are arranged on the circuit breaker shell and respectively correspond to the first characteristic part and the second characteristic part on the first driving block, so that the sliding travel of the first driving block in the second sliding groove is limited.
Preferably, the first wedge is two, and is symmetrically arranged on the upper side and the lower side of the breaker shell.
In still another embodiment of the present invention, the driving mechanism includes a second driving block, the second driving block is capable of sliding in a third chute on the circuit breaker housing, a third spring mounting groove is provided in the second driving block, a second driving spring is mounted in the third spring mounting groove, one end of the second driving spring abuts against an inner side end of the third spring mounting groove, and the other end of the second driving spring abuts against a baffle on the circuit breaker housing, so that the second driving block is subjected to a driving force towards an outer side end of the circuit breaker housing, and the second driving force is capable of enabling the second driving block to push the wedge to extend out of the second opening.
Further, release mechanism includes the unblock handle, the unblock hand includes operating portion, pivot and transfer line, and the unblock handle rotates through the pivot to be connected in the circuit breaker casing, the tip and the drive piece second of transfer line are connected, the operating portion is under the exogenic action through the rotation drive of transfer line drive the drive piece second overcomes the drive force second that drive spring provided makes drive piece second is towards circuit breaker casing inboard motion, thereby realizes slide wedge second follow the second withdrawal of opening.
Preferably, the transmission rod is connected with the driving block through contact connection or shaft hole.
Advantageous effects
According to the wedge type installation mechanism of the plug-in circuit breaker, the circuit breaker is smoothly and stably installed in the machine frame, and when the locking piece is locked with the machine frame, the circuit breaker cannot be pulled out from the installation machine frame; the breaker can be easily and conveniently taken out of the frame without tools by pressing the operating handle of the locking piece.
Drawings
FIG. 1a is a diagram of a product according to example 1 of the present invention;
FIG. 1b is a second diagram of the product of example 1 of the present invention;
FIG. 2 is a locked state diagram of embodiment 1 of the present invention;
FIG. 3 is an unlock state diagram of embodiment 1 of the present invention;
fig. 4 is a diagram showing a locked state of the plug-in circuit breaker according to embodiment 1 of the present invention;
FIG. 5 is a schematic view of the wedge one in embodiment 1 of the present invention;
FIG. 6 is a schematic diagram of a first driving block in embodiment 1 of the present invention;
Fig. 7 is a schematic view of a circuit breaker housing in embodiment 1 of the present invention;
FIG. 8 is a locked state diagram of embodiment 2 of the present invention;
FIG. 9 is an unlock state diagram of embodiment 2 of the present invention;
Detailed Description
The invention will be further described with reference to the drawings and examples.
The utility model provides a slide wedge type installation mechanism of plug-in circuit breaker, it includes plug-in circuit breaker A and frame B, plug-in circuit breaker A can take out the dress of inserting in frame B, its characterized in that: the locking mechanism C can lock or unlock the plug-in circuit breaker A to realize corresponding fixed installation in the machine frame B or extraction and insertion in the machine frame B;
Example 1
As shown in fig. 1a,1b,2,3,4 and 7, the locking mechanism C is linked with a driving mechanism D, the driving mechanism D can push the locking mechanism C to lock the plug-in circuit breaker a, the driving mechanism D is linked with an unlocking mechanism E, and the unlocking mechanism E can drive the driving mechanism D to move so as to unlock the plug-in circuit breaker a by the locking mechanism C.
The locking mechanism C includes a wedge C1, in this embodiment, the wedge C1 is two blocks with different lengths, and is disposed on the upper and lower sides of the breaker housing C2.
The first cam C1 can slide in a first chute C20 on the circuit breaker housing C2, one end of the first cam C1 can penetrate or retract from an opening C2B formed by the circuit breaker housing C2 and the frame B during sliding, the other end of the first cam can be linked with the driving mechanism D, as shown in fig. 5, a spring mounting groove C1a is formed in the first cam C1, an unlocking spring C3 is mounted in the spring mounting groove C1a, one end of the unlocking spring is propped against a boss C21 on the circuit breaker housing C2, and the other end of the unlocking spring is propped against the inner end of the spring mounting groove C1a, so that the first cam C1 is subjected to a retracting force from the opening C2B.
The driving mechanism D comprises a first driving block D1, wherein the first driving block D1 can slide in a second sliding groove C22 on the circuit breaker shell C2, one end of the first driving block D1 can be linked with the locking mechanism C in the sliding process, the other end of the first driving block D1 can be linked with the unlocking mechanism E, as shown in figure 6, a second spring installation groove D1a is formed in the first driving block D1, a first driving spring D2 is arranged in the second spring installation groove D1a, one end of the first driving spring is propped against a second boss C25 on the circuit breaker shell C2, and the other end of the first driving spring is propped against the inner side end of the second spring installation groove D1a, so that the first driving block D1 is driven by a first driving force towards one side of the inclined wedge C1; the driving block D1 in the driving mechanism D and the wedge C1 in the locking mechanism C are inclined planes, the driving spring D2 props against the inner side end of the spring mounting groove D1a so that the driving block D1 receives a driving force towards one side of the wedge C1 and is larger than the unlocking spring C3 props against the inner side end of the spring mounting groove C1a so that the wedge C1 receives a retracting force from the opening part C2B.
The unlocking mechanism E is a button E1, the button E1 is arranged in a button groove C2E1 of the circuit breaker shell C2 and can slide, the button E1 can drive a hanging table D1D on the corresponding end of a driving block D1 in the process of sliding outwards in the button groove C2E1, so that the driving block D1 is driven to overcome the inner side end of a driving spring D2 to prop against a spring mounting groove D1a, the driving block D1 is subjected to a driving force I facing to the inclined wedge C1 side, and the button E1 is separated from the hanging table D1D on the corresponding end of the driving block D1 in the process of sliding inwards in the button groove C2E 1.
As shown in fig. 7, the circuit breaker housing C2 is provided with a first limiting block C23 and a second limiting block C24, which respectively correspond to the first feature portion D1b and the second feature portion D1C of the first driving block D1, so as to limit the sliding travel of the first driving block D1 in the second sliding groove C22.
In this embodiment, after the plug-in circuit breaker a is inserted into the frame B, the wedge C1 slides in the chute C20 on the circuit breaker housing C2 and penetrates through the upper surface of the circuit breaker housing C2 under the action of the driving mechanism D, and is buckled with the frame B, and after buckling, the circuit breaker housing C2 is pulled leftwards, so that the plug-in circuit breaker a cannot be taken out from the frame B; pulling out the button E1 leftwards, wherein the button E1 drives the driving block I D1 to overcome the driving force I of the driving spring I D2 so as to move leftwards, the inclined wedge I C1 is retracted into the breaker shell C2 from the opening part C2B under the action of the unlocking spring C3 and is unbuckled with the machine frame B, when the characteristic part I D1B on the driving block I D1 is propped against the limiting block I C23 on the breaker shell C2, the button E1 is continuously pulled leftwards, and the plug-in breaker A can be easily taken out from the machine frame B;
Example 2
In yet another embodiment of the present invention, as shown in fig. 8 and 9, the driving mechanism D includes a driving block two D3, where the driving block two D3 can slide in a sliding slot three C27 on the circuit breaker housing C2, a spring mounting groove three D3a is provided in the driving block two D3, one end of a driving spring two D4 mounted in the spring mounting groove three D3a abuts against an inner end of the spring mounting groove three D3a, and the other end abuts against a baffle C26 on the circuit breaker housing C2, so that the driving block two D3 receives a driving force two toward an outer end of the circuit breaker housing C2, and the driving force two can enable the driving block two D3 to push the wedge two C1 'to extend out of the opening part two C2B'.
The unlocking mechanism E comprises an unlocking handle E2, the unlocking handle E2 comprises an operation part E2a, a rotating shaft E2B and a transmission rod E2C, the unlocking handle E2 is rotationally connected in a breaker shell C2 through the rotating shaft E2B, the end part of the transmission rod E2C is in contact connection with a driving block D3, the operation part E2a drives the driving block D3 to overcome a driving force II provided by a driving spring D4 under the action of external force through the rotation of the transmission rod E2C, so that the driving block D3 moves towards the inner side of the breaker shell C2, and the inclined wedge C1 'is retracted from an opening part C2B'.
Example 3
The transmission rod E2c in the embodiment 2 is connected to the driving block two D3 through a shaft hole.
The structures, proportions, sizes, amounts and so forth shown in the drawings of the present embodiment are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes of the structures, proportions, or otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit and scope thereof. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", "clockwise", "anticlockwise" and the like are used in the present specification for convenience of description, and are not intended to limit the scope of the present invention, and the relative relation changes or modifications thereof are considered to be within the scope of the present invention without substantial modification of the technical content.
Claims (7)
1. The utility model provides a slide wedge installation mechanism of plug-in circuit breaker, it includes plug-in circuit breaker (A) and frame (B), plug-in circuit breaker (A) can take out the dress of inserting in frame (B), its characterized in that: the circuit breaker further comprises a locking mechanism (C), wherein the locking mechanism (C) can lock or unlock the plug-in circuit breaker (A) to realize corresponding fixed installation in the machine frame (B) or extraction and insertion in the machine frame (B);
the locking mechanism (C) is linked with the driving mechanism (D), the driving mechanism (D) can push the locking mechanism (C) to lock the plug-in circuit breaker (A), the driving mechanism (D) is linked with the unlocking mechanism (E), and the unlocking mechanism (E) can drive the driving mechanism (D) to move so as to unlock the plug-in circuit breaker (A) by the locking mechanism (C);
The locking mechanism (C) comprises a cam first (C1), wherein the cam first (C1) can slide in a first sliding groove (C20) on the circuit breaker shell (C2), one end of the cam first (C1) can penetrate through or retract from an opening (C2B) formed by the circuit breaker shell (C2) and a frame (B) correspondingly in the sliding process, the other end of the cam first (C1) can be linked with the driving mechanism (D), a first spring installation groove (C1 a) is formed in the cam first (C1), an unlocking spring (C3) is arranged in the first spring installation groove (C1 a), one end of the unlocking spring is propped against a first boss (C21) on the circuit breaker shell (C2), and the other end of the unlocking spring is propped against the inner side end of the first spring installation groove (C1 a) so that the cam first (C1) receives retracting force from the opening (C2B);
The driving mechanism (D) comprises a first driving block (D1), the first driving block (D1) can slide in a second sliding groove (C22) on the circuit breaker shell (C2), one end of the first driving block (D1) can be linked with the locking mechanism (C) in the sliding process, the other end of the first driving block can be linked with the unlocking mechanism (E), a second spring mounting groove (D1 a) is formed in the first driving block (D1), a first driving spring (D2) is arranged in the second spring mounting groove (D1 a), one end of the first driving spring is propped against a second boss (C25) on the circuit breaker shell (C2), and the other end of the first driving spring is propped against the inner side end of the second spring mounting groove (D1 a) so that the first driving block (D1) is driven by a first driving force towards one side of the wedge (C1);
The unlocking mechanism (E) is a button (E1), the button (E1) is arranged in a button groove (C2E 1) of the circuit breaker shell (C2) and can slide, the button (E1) can drive a hanging table (D1D) on the corresponding end of a first driving block (D1) in the process of sliding outwards in the button groove (C2E 1), so that the first driving block (D1) is driven to overcome a driving spring (D2) to prop against the inner side end of a second spring mounting groove (D1 a), the first driving block (D1) is driven by a driving force (D1) towards the side of the inclined wedge (C1), and the button (E1) is separated from the hanging table (D1D) on the corresponding end of the first driving block (D1) in the process of sliding inwards in the button groove (C2E 1).
2. The cam type mounting mechanism of a plug-in circuit breaker according to claim 1, wherein: the driving mechanism is characterized in that a linkage end of a driving block I (D1) in the driving mechanism (D) and a wedge I (C1) in the locking mechanism (C) is an inclined plane, the driving spring I (D2) abuts against the inner side end of a spring mounting groove II (D1 a) to enable the driving block I (D1) to be subjected to a force of driving towards one side of the wedge I (C1) to be larger than a force of unlocking spring (C3) abutting against the inner side end of the spring mounting groove I (C1 a) to enable the wedge I (C1) to be subjected to a force retracting from an opening part (C2B).
3. The cam type mounting mechanism of a plug-in circuit breaker according to claim 1, wherein: the circuit breaker shell (C2) is provided with a first limiting block (C23) and a second limiting block (C24) which respectively correspond to a first characteristic part (D1 b) and a second characteristic part (D1C) on the first driving block (D1) so as to limit the sliding stroke of the first driving block (D1) in the second sliding groove (C22).
4. The cam type mounting mechanism of a plug-in circuit breaker according to claim 1, wherein: the wedge I (C1) is two, and is symmetrically arranged on the upper side and the lower side of the breaker shell (C2).
5. The cam type mounting mechanism of a plug-in circuit breaker according to claim 1, wherein: the driving mechanism (D) comprises a driving block II (D3), the driving block II (D3) can slide in a sliding groove III (C27) on the circuit breaker shell (C2), a spring installation groove III (D3 a) is formed in the driving block II (D3), a driving spring II (D4) is arranged in the spring installation groove III (D3 a), one end of the driving spring II is abutted against the inner side end of the spring installation groove III (D3 a), the other end of the driving spring II is abutted against a baffle (C26) on the circuit breaker shell (C2), so that the driving block II (D3) is subjected to a driving force II facing the outer side end of the circuit breaker shell (C2), and the driving force II can enable the driving block II (D3) to push the inclined wedge II (C1 ') to extend out of an opening part II (C2B').
6. The cam type mounting mechanism of a plug-in circuit breaker according to claim 5, wherein: the unlocking mechanism (E) comprises an unlocking handle (E2), the unlocking handle (E2) comprises an operation part (E2 a), a rotating shaft (E2B) and a transmission rod (E2C), the unlocking handle (E2) is rotationally connected in a breaker shell (C2) through the rotating shaft (E2B), the end part of the transmission rod (E2C) is connected with a driving block II (D3), the operation part (E2 a) drives the driving block II (D3) to overcome a driving force II provided by the driving spring II (D4) under the action of external force, so that the driving block II (D3) moves towards the inner side of the breaker shell (C2), and the inclined wedge II (C1 ') is retracted from an opening part II (C2B').
7. The cam type mounting mechanism of a plug-in circuit breaker according to claim 6, wherein: the transmission rod (E2 c) is connected with the driving block II (D3) through contact connection or shaft holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927701.2A CN112582223B (en) | 2019-09-27 | 2019-09-27 | An inclined wedge installation mechanism for plug-in circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927701.2A CN112582223B (en) | 2019-09-27 | 2019-09-27 | An inclined wedge installation mechanism for plug-in circuit breaker |
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| CN112582223A CN112582223A (en) | 2021-03-30 |
| CN112582223B true CN112582223B (en) | 2024-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910927701.2A Active CN112582223B (en) | 2019-09-27 | 2019-09-27 | An inclined wedge installation mechanism for plug-in circuit breaker |
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| CN112582220B (en) * | 2019-09-27 | 2024-11-22 | 上海良信电器股份有限公司 | A rotary disc installation mechanism for plug-in circuit breaker |
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| CN211150439U (en) * | 2019-09-27 | 2020-07-31 | 上海良信电器股份有限公司 | Wedge type installation mechanism of plug-in circuit breaker |
| CN112582220A (en) * | 2019-09-27 | 2021-03-30 | 上海良信电器股份有限公司 | Rotating disc type mounting mechanism of plug-in circuit breaker |
| CN114068250A (en) * | 2020-07-29 | 2022-02-18 | 上海良信电器股份有限公司 | Oblique slider type mounting mechanism of plug-in circuit breaker |
| CN114068249A (en) * | 2020-07-29 | 2022-02-18 | 上海良信电器股份有限公司 | Torsional spring type mounting mechanism of plug-in circuit breaker |
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| JP3408673B2 (en) * | 1995-08-31 | 2003-05-19 | 三菱電機株式会社 | Interlock device for draw-out type circuit breaker |
| CN201616514U (en) * | 2010-01-15 | 2010-10-27 | 李建民 | Adapter of molded case circuit breaker |
| CN205230938U (en) * | 2015-12-21 | 2016-05-11 | 北京赛德高科铁道电气科技有限责任公司 | A wedge type turns to device and vacuum circuit breaker for vacuum circuit breaker |
| CN107833799B (en) * | 2017-10-26 | 2024-09-20 | 上海良信电器股份有限公司 | A fixing and unlocking mechanism for plug-in circuit breaker |
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2019
- 2019-09-27 CN CN201910927701.2A patent/CN112582223B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211150439U (en) * | 2019-09-27 | 2020-07-31 | 上海良信电器股份有限公司 | Wedge type installation mechanism of plug-in circuit breaker |
| CN112582220A (en) * | 2019-09-27 | 2021-03-30 | 上海良信电器股份有限公司 | Rotating disc type mounting mechanism of plug-in circuit breaker |
| CN114068250A (en) * | 2020-07-29 | 2022-02-18 | 上海良信电器股份有限公司 | Oblique slider type mounting mechanism of plug-in circuit breaker |
| CN114068249A (en) * | 2020-07-29 | 2022-02-18 | 上海良信电器股份有限公司 | Torsional spring type mounting mechanism of plug-in circuit breaker |
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| CN112582223A (en) | 2021-03-30 |
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