CN117276023A - Installation locking device and plug-in circuit breaker - Google Patents
Installation locking device and plug-in circuit breaker Download PDFInfo
- Publication number
- CN117276023A CN117276023A CN202311342689.1A CN202311342689A CN117276023A CN 117276023 A CN117276023 A CN 117276023A CN 202311342689 A CN202311342689 A CN 202311342689A CN 117276023 A CN117276023 A CN 117276023A
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- CN
- China
- Prior art keywords
- locking
- handle
- groove
- clamping
- piece
- 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
Links
- 238000009434 installation Methods 0.000 title claims abstract description 22
- 230000013011 mating Effects 0.000 claims description 12
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Classifications
-
- 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
- H01H71/1009—Interconnected mechanisms
-
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
Landscapes
- Breakers (AREA)
Abstract
The invention discloses an installation locking device and an insertion type circuit breaker, wherein the installation locking device is used for locking and unlocking between the insertion type circuit breaker and a chassis, and comprises a shell, a clamping piece, a locking piece and a handle, wherein a clamping through groove and a locking through groove are formed in the shell, the clamping piece is rotationally connected with the shell, one end of the clamping piece is provided with a clamping part, the clamping part can protrude out of the shell through the locking through groove, the locking piece is rotationally connected with the shell, the locking piece is positioned at one side of the clamping piece far away from the clamping through groove and can drive the clamping piece to move around a shaft, the locking piece comprises a pressing part protruding out of the locking through groove, the handle is rotationally connected with the shell, the handle is positioned at one side of the clamping piece far away from the clamping piece, and the handle can move back and forth at a closing position and a separating position so as to realize locking and unlocking of the locking piece. The installation locking device avoids the false pulling out of the electrified state of the plug-in circuit breaker, ensures the safety, and greatly improves the installation convenience.
Description
Technical Field
The invention relates to the field of piezoelectric devices, in particular to a mounting and locking device and a plug-in circuit breaker.
Background
The low-voltage circuit breaker is divided into the following mounting modes: the plug-in circuit breaker is widely used in various electrical equipment, such as a 1U installation plug-in circuit breaker for 5G communication equipment, and the plug-in circuit breaker is conveniently installed/withdrawn in a plug-in mode. In the existing 1U installation plug-in circuit breaker, the switch-on and switch-off of the drive system are realized through the sliding button, and the structure cannot meet certain safety operation requirements of customers.
Disclosure of Invention
The invention aims to provide an installation locking device and a plug-in circuit breaker.
The technical scheme adopted for solving the technical problems is as follows: a mounting and locking device for locking and unlocking a plug-in circuit breaker to a chassis is constructed, comprising:
the shell is provided with a buckling through groove and a buckling through groove;
the clamping piece is rotationally connected with the shell, one end of the clamping piece is provided with a clamping part, and the clamping part can protrude out of the shell through the clamping through groove;
the locking piece is rotationally connected with the shell, is positioned at one side of the locking piece far away from the locking through groove and can drive the locking piece to move around the shaft, and comprises a pressing part protruding out of the locking through groove;
the handle is rotationally connected with the shell, is positioned on one side of the locking piece far away from the locking piece and can move back and forth at a closing position and a separating position so as to lock and unlock the locking piece;
when the handle is in a closing position, the locking piece is in a locking state, and the clamping part protrudes out of the clamping through groove and realizes locking between the plug-in circuit breaker and the chassis;
when the handle is in the opening position, the locking piece is in an unlocking state, and the locking piece can drive the locking piece to move under the action of external force by pressing the pressing part, so that the clamping part is retracted into the shell, and unlocking between the plug-in circuit breaker and the chassis is realized.
In some embodiments, the installation locking device further comprises an elastic member, one end of the elastic member is connected with the buckle member, the other end of the elastic member is connected with the housing, and the elastic member is used for providing elastic force for maintaining the locked state for the buckle member.
In some embodiments, a fastening shaft is further disposed in the housing, and the fastening member further includes a fastening rotating portion mounted on the fastening shaft and a fastening portion disposed at an end of the fastening member away from the fastening portion.
In some embodiments, a latch shaft is further disposed in the housing, and the latch member includes a swing portion, a latch rotating portion, and a flange portion that are sequentially connected;
the swing part is arranged at one end of the locking piece, which faces the locking piece, and is abutted to the clamping part, the locking rotating part is arranged on the locking shaft, the flange part is matched with the handle, and the pressing part is arranged at one side, close to the flange part, of the bottom of the locking rotating part.
In some embodiments, the handle includes a mating portion and a receiving groove;
the matching part is arranged at one end of the handle facing the locking piece and is matched with the flange part, and the accommodating groove is arranged at one side of the matching part and is matched with the flange part;
when the handle is at the closing position, the flange part is abutted against the matching part; when the handle is in the opening position, the flange part is accommodated in the accommodating groove, and the outer wall surface of the flange part and the bottom wall surface of the accommodating groove have a preset gap.
In some embodiments, the mating portion is an arc structure, and the receiving groove is a groove structure or a step structure.
In some embodiments, a handle shaft is also provided within the housing, the handle including a handle rotation mounted on the handle shaft.
In some embodiments, the shell is further provided with a handle through groove, and the handle further comprises a driving part protruding out of the handle through groove and used for controlling the closing and opening of the plug-in circuit breaker;
the handle rotating part is also provided with a linkage part, and the linkage part is hinged with a linkage rod; when the driving part rotates, the linkage part is driven to rotate so as to drive the linkage rod to move, so that the switching-on and switching-off of the plug-in circuit breaker are controlled.
In some embodiments, the engaging portion has an L-shaped structure, the latch through groove is a square groove, and the latch through groove is V-shaped.
In this embodiment, a plug-in circuit breaker is also constructed, which includes the above-described installation locking device.
The implementation of the invention has the following beneficial effects: the installation locking device can enable the plug-in circuit breaker to be unplugged when the plug-in circuit breaker is switched on, and only the plug-in circuit breaker can be unplugged after the circuit is disconnected by disconnecting the plug-in circuit breaker, so that the live state false unplugging is avoided, the safety is ensured, meanwhile, the plug-in circuit breaker can be directly unplugged from the case without unlocking a tool, and the installation convenience is greatly improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the following description will be given with reference to the accompanying drawings and examples, it being understood that the following drawings only illustrate some examples of the present invention and should not be construed as limiting the scope, and that other related drawings can be obtained from these drawings by those skilled in the art without the inventive effort. In the accompanying drawings:
FIG. 1 is a front elevational view of an installation lockout device in accordance with some embodiments of the present invention in a closed position;
FIG. 2 is a partial front view of the structure of the installation lockout device in some embodiments of the present invention in a closed position;
FIG. 3 is a front elevational view of the installation lockout device in some embodiments of the present invention in a disengaged position;
FIG. 4 is a perspective view of the structure of the installation locking apparatus in an open position in some embodiments of the invention;
FIG. 5 is a schematic view of the structure of a housing for mounting a locking device in some embodiments of the invention;
FIG. 6 is a schematic view of the structure of a handle in some embodiments of the invention;
FIG. 7 is a schematic view of a latch according to some embodiments of the present invention;
fig. 8 is a schematic structural view of a fastener according to some embodiments of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present invention.
It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present invention and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 8, the invention discloses a plug-in circuit breaker, which comprises a mounting locking device for locking and unlocking between the plug-in circuit breaker and a chassis, and comprises a shell 1, a buckling piece 2, a buckling piece 3 and a handle 4, wherein the buckling piece 2, the buckling piece 3 and the handle 4 are all arranged in the shell 1. Wherein, the shell 1 is provided with a through slot 11 and a through slot 12, the fastener 2 is rotationally connected with the shell 1, one end of the fastener 2 is provided with a clamping portion 21, the clamping portion 21 protrudes from the shell 1 through the through slot 11, the clamping portion 21 is in an L-shaped structure in this embodiment, more specifically, may be an L-shaped hook, the through slot 11 may be a square slot, which is convenient for the clamping portion 21 to enter and exit, and in other embodiments, the through slot 11 may also be a circular slot, an elliptical slot or another shaped through slot, which is not limited herein.
In addition, the locking piece 3 is rotationally connected with the shell 1, the locking piece 3 is located at one end of the locking piece 2 away from the locking through groove 11 and can drive the locking piece 2 to move around the shaft, and the locking piece 3 comprises a pressing part 31 protruding out of the locking through groove 12. As shown in fig. 5, the latch through slot 12 may be V-shaped, and the pressing portion 31 is disposed outside the housing 1, and meanwhile, the handle 4 is rotationally connected with the housing 1, the handle 4 is located on a side of the latch 3 away from the latch 2, the handle 4 can move back and forth at the closing position a and the opening position B, the handle 4 can be manually pulled back and forth to control the closing and opening states of the plug-in circuit breaker, and meanwhile, the handle 4 can lock and unlock the latch 3.
As shown in fig. 1 and 2, when the handle 4 is at the closing position a, the locking member 3 is in a locking state, and the engaging portion 21 protrudes from the housing 1 and realizes locking between the plug-in circuit breaker and the chassis; as shown in fig. 3 and fig. 4, when the handle 4 is at the opening position B, the latch 3 is in an unlocked state, and the latch 3 can drive the latch 2 to move by pressing the pressing portion 31 under the action of an external force, so that the engaging portion 21 retracts into the housing 1, thereby unlocking between the plug-in circuit breaker and the chassis. As can be appreciated, the fastener 2 is disposed in the housing 1 and has two states, and when the fastener 2 is acted on by the fastener 3 to be in a fixed state, the engaging portion 21 protrudes from the fastener through slot 11 of the housing 1 and extends into the chassis, so as to achieve locking between the plug-in circuit breaker and the chassis; when the locking piece 3 is in a movable state, the locking piece 2 can be driven to rotate, and when the clamping part 21 is retracted into the shell 1 and is simultaneously separated from the chassis, unlocking between the plug-in circuit breaker and the chassis is realized, and at the moment, the plug-in circuit breaker can be smoothly pulled out from the chassis.
It can be understood that this installation locking device can make the plug-in circuit breaker realize when closing a floodgate, and the plug-in circuit breaker can not pull out, only just can pull out the function after the plug-in circuit breaker separating brake disconnection circuit, has avoided electrified state mistake to pull out, has guaranteed the security, just can directly pull out quick-witted case with the plug-in circuit breaker with the instrument unblock simultaneously, has greatly improved the convenience of installation.
As shown in fig. 1 to 4, the installation locking device further includes an elastic member 5, one end of the elastic member 5 is connected with the fastening member 2, the other end of the elastic member 5 is connected with the housing 1, the elastic member 5 is used for providing an elastic force for maintaining the fastening member 2 in a locked state, and the elastic member 5 is disposed at a side of the fastening member 2 facing the handle 4 in this embodiment. When the locking member 3 is pressed by the operator and released, the elastic member 5 resets the locking member 2 to the locked position because the locking member 2 is no longer fixed by the external force, that is, the engaging portion 21 protrudes from the position of the locking through slot 11, and drives the locking member 3 to rotate counterclockwise, and the pressing portion 31 of the locking member 3 is simultaneously restored to the initial pressing position. The elastic member 5 is preferably a spring, and the spring has a long elastic stroke and uniform elastic force, so that the conditions of micro deformation, accumulated tolerance, abrasion and material fatigue after long-term operation during assembly can be avoided, and the stability of the opening and closing force of the fastener 2 can be maintained. In other embodiments, the elastic member 5 may be a silicone elastic member, a rubber elastic member, or other metal elastic members, which are not particularly limited herein.
More specifically, the housing 1 is further provided with a fastening shaft 13, as shown in fig. 8, the fastening member 2 further includes a fastening rotating portion 22 mounted on the fastening shaft 13, and a fastening portion 23 disposed at an end of the fastening member 2 away from the fastening portion 21, where the fastening rotating portion 22 is mounted on the fastening shaft 13, so that the fastening member 2 can rotate along the fastening shaft 13, and the fastening portion 23 is used for being matched with the fastening member 3.
In addition, as shown in fig. 7, the latch member 3 includes a swinging portion 32, a latch rotating portion 33, and a flange portion 34, which are sequentially connected, wherein the swinging portion 32 is disposed at one end of the latch member 3 facing the latch member 2 and abuts against the holding portion 23, and the latch member 3 can drive the latch member 2 to move through the swinging portion 32. The latch rotating portion 33 is mounted on the latch shaft 14 such that the latch member 3 can also be rotatably connected to the housing 1 through the latch rotating portion 33, and the flange portion 34 is disposed in cooperation with the handle 4. The pressing portion 31 is located at one side of the bottom of the latch rotating portion 33 near the flange portion 34, so that pressing the pressing portion 31 can rotate the latch 3 along the latch shaft 14 in a counterclockwise direction, and at the same time, when the latch 2 is reset, the latch 2 moves in a counterclockwise direction, and the latch 3 rotates along the latch shaft 14 in a clockwise direction by driving the swinging portion 32 through the holding portion 23, and the pressing portion 31 is reset to an initial state.
As shown in fig. 6, the handle 4 includes a mating portion 41 and a receiving groove 42, the mating portion 41 is disposed on an end of the handle 4 facing the latch 3 and is mated with the flange 34, the receiving groove 42 is disposed on a side of the mating portion 41 and is mated with the flange 34, the mating portion 41 has an arc structure, and the receiving groove 42 has a groove structure or a step structure, so as to facilitate mating with the flange 34. When the handle 4 is at the closing position a, the flange 34 abuts against the mating portion 41, and the flange 34 is fixed and cannot move, i.e. the locking member 3 is abutted against and cannot move, and the locking member 2 is also fixed and locked. When the handle 4 is at the opening position B, the flange 34 is accommodated in the accommodating groove 42, and a predetermined gap is formed between the outer wall surface of the flange 34 and the bottom wall surface of the accommodating groove 42, and the handle 4 is moved clockwise during the process from the closing position a to the opening position B, at this time, the flange 34 is changed from the arc surface abutting against the mating portion 41 to extend into the accommodating groove 42, and the predetermined gap can give the movable space to the locking member 3, and the flange 34 is no longer abutted against and fixed by the mating portion 41, i.e., the locking member 3 is in the movable state, and can be operated by the pressing portion 31 of the locking member 3. In addition, the flange portion 34 is further provided with a bevel structure to facilitate the cooperation between the mating portion 41 and the accommodating groove 42, so that the flange portion 34 can more conveniently and easily enter the accommodating groove 42, and can be more easily removed from the accommodating groove 42.
Also provided in the housing 1 is a handle shaft 15, and the handle 4 includes a handle rotation portion 43 mounted on the handle shaft 15, and the handle 4 is rotatably connected to the housing 1 through the handle rotation portion 43.
The casing 1 is further provided with a handle through slot 16, as shown in fig. 4 and 6, the handle 4 further includes a driving portion 44 protruding out of the handle through slot 16 and used for controlling the switching-on and switching-off of the plug-in circuit breaker, an operator can control the switching-on and switching-off of the plug-in circuit breaker by toggling the driving portion 44, the handle rotating portion 43 is further provided with a linkage portion 45, and the linkage portion 45 is hinged with a linkage rod 46; when the driving part 44 rotates, the linkage part 45 is driven to rotate so as to drive the linkage rod 46 to move, so as to control the switching-on and switching-off of the plug-in circuit breaker.
In summary, the working principle of the installation locking device is as follows: when the handle 4 is at the closing position A, the plug-in circuit breaker is in a closing state, the flange part 34 of the locking piece 3 is abutted on the matching part 41 of the handle 4, the pressing part 31 is pressed at the moment, the locking piece 3 is propped against the fixed part, the clamping part 21 of the locking piece 2 protrudes out of the clamping through groove 11 to lock the plug-in circuit breaker with the chassis, and the plug-in circuit breaker is prevented from being pulled out of the chassis in the closing state, so that the safety during use is improved. When the handle 4 is pulled clockwise to the opening position B, the plug-in circuit breaker is in an opening state, the flange portion 34 of the locking piece 3 extends into the accommodating groove 42, the pressing portion 31 is pressed at this time, the whole locking piece 2 rotates anticlockwise, the locking portion 21 of the locking piece 2 is retracted into the housing 1, and at this time, the plug-in circuit breaker can be pulled out from the chassis.
It is to be understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A mounting and locking device for locking and unlocking a plug-in circuit breaker to a chassis, comprising:
the shell (1), the said shell (1) has buckle through slot (11) and buckle through slot (12);
the clamping piece (2), the clamping piece (2) is rotationally connected with the shell (1), one end of the clamping piece (2) is provided with a clamping part (21), and the clamping part (21) can protrude out of the shell (1) through the clamping through groove (11);
the locking piece (3), the locking piece (3) is rotationally connected with the shell (1), the locking piece (3) is located at one side of the locking piece (2) away from the locking through groove (11) and can drive the locking piece (2) to move around the shaft, and the locking piece (3) comprises a pressing part (31) protruding out of the locking through groove (12);
the handle (4) is rotationally connected with the shell (1), the handle (4) is positioned on one side of the locking piece (3) away from the locking piece (2), and the handle (4) can move back and forth at a closing position (A) and a separating position (B) so as to lock and unlock the locking piece (3);
when the handle (4) is at a closing position (A), the locking piece (3) is in a locking state, and the clamping part (21) protrudes out of the clamping through groove (11) and realizes locking between the plug-in circuit breaker and the chassis;
when the handle (4) is at the opening position (B), the locking piece (3) is in an unlocking state, and the locking piece (3) can drive the locking piece (2) to move under the action of external force by pressing the pressing part (31), so that the clamping part (21) is retracted into the shell (1), and unlocking between the plug-in circuit breaker and the chassis is realized.
2. The mounting and locking device according to claim 1, further comprising an elastic member (5), one end of the elastic member (5) being connected to the snap member (2), the other end of the elastic member (5) being connected to the housing (1), the elastic member (5) being adapted to provide an elastic force for the snap member (2) when maintaining a locked state.
3. The mounting and locking device according to claim 1, wherein the housing (1) is further provided therein with a snap shaft (13), and the snap member (2) further comprises a snap rotating portion (22) mounted on the snap shaft (13) and a holding portion (23) provided at an end of the snap member (2) remote from the engaging portion (21).
4. A mounting and locking device according to claim 3, characterized in that the housing (1) is further provided with a locking shaft (14), the locking member (3) comprising a swinging part (32), a locking rotating part (33) and a flange part (34) connected in sequence;
the swing part (32) is arranged at one end of the locking piece (3) facing the locking piece (2) and is abutted to the clamping part (23), the locking rotating part (33) is arranged on the locking shaft (14), the flange part (34) is matched with the handle (4), and the pressing part (31) is arranged at one side, close to the flange part (34), of the bottom of the locking rotating part (33).
5. The mounting and locking device according to claim 4, characterized in that the handle (4) comprises a mating portion (41) and a receiving groove (42);
the matching part (41) is arranged at one end of the handle (4) facing the locking piece (3) and is matched with the flange part (34), and the accommodating groove (42) is arranged at one side of the matching part (41) and is matched with the flange part (34);
when the handle (4) is at the closing position (A), the flange part (34) is abutted against the matching part (41); when the handle (4) is in the opening position (B), the flange portion (34) is accommodated in the accommodating groove (42), and the outer wall surface of the flange portion (34) and the bottom wall surface of the accommodating groove (42) have a predetermined clearance.
6. The mounting and locking device according to claim 5, wherein the fitting portion (41) has an arc-shaped structure, and the receiving groove (42) has a groove structure or a step structure.
7. The mounting and locking device according to claim 1, characterized in that a handle shaft (15) is further provided in the housing (1), the handle (4) comprising a handle rotation part (43) mounted on the handle shaft (15).
8. The installation locking device according to claim 1, wherein the housing (1) is further provided with a handle through slot (16), and the handle (4) further comprises a driving part (44) protruding out of the handle through slot (16) and used for controlling the closing and opening of the plug-in circuit breaker;
the handle rotating part (43) is also provided with a linkage part (45), and the linkage part (45) is hinged with a linkage rod (46); when the driving part (44) rotates, the linkage part (45) is driven to rotate so as to drive the linkage rod (46) to move, so that the switching-on and switching-off of the plug-in circuit breaker are controlled.
9. The mounting and locking device according to claim 1, wherein the engaging portion (21) has an L-shaped structure, the latch through groove (12) is a square groove, and the latch through groove (12) has a V-shape.
10. A plug-in circuit breaker, characterized by comprising a mounting locking device according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311342689.1A CN117276023A (en) | 2023-10-17 | 2023-10-17 | Installation locking device and plug-in circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311342689.1A CN117276023A (en) | 2023-10-17 | 2023-10-17 | Installation locking device and plug-in circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117276023A true CN117276023A (en) | 2023-12-22 |
Family
ID=89212279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311342689.1A Pending CN117276023A (en) | 2023-10-17 | 2023-10-17 | Installation locking device and plug-in circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117276023A (en) |
-
2023
- 2023-10-17 CN CN202311342689.1A patent/CN117276023A/en active Pending
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