CN217933519U - Interlocking device of switch cabinet - Google Patents
Interlocking device of switch cabinet Download PDFInfo
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- CN217933519U CN217933519U CN202222360493.2U CN202222360493U CN217933519U CN 217933519 U CN217933519 U CN 217933519U CN 202222360493 U CN202222360493 U CN 202222360493U CN 217933519 U CN217933519 U CN 217933519U
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- connecting rod
- circuit breaker
- interlocking
- interlock
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Abstract
The utility model discloses an interlock of cubical switchboard sets up between the internal circuit breaker of cabinet and operating device, the circuit breaker includes manual combined floodgate button and sets up in the travel switch of manual combined floodgate button downside, this interlock is including the first interlocking structure who connects operating device, but first interlocking structure includes reciprocating motion setting the shutting guide arm between manual combined floodgate button and travel switch, when operating device is in operating position, the shutting guide arm moves down and shelters from manual combined floodgate button and touch travel switch and open, cuts off through travel switch the electronic combined floodgate power supply of circuit breaker, the circuit breaker at this moment can not carry out manual and electronic combined floodgate operation, thereby the circuit breaker that closes by mistake when preventing to operate isolator, the interlock requirement between isolator and the circuit breaker can be realized to the interlock that adopts this technical scheme, and carry out the correlation operation of cubical switchboard according to correct operation order, use safe and reliable.
Description
Technical Field
The utility model relates to a supply distribution technical field, concretely relates to interlock of cubical switchboard.
Background
The main effect of cubical switchboard is at high low voltage power system the in-process that generates electricity, transmits electricity, distribution and electric energy conversion, opens and shuts control and protection consumer, for guarantee electric power network safe operation, ensures equipment and personal safety, prevents the maloperation, and the regulation requires high low voltage switchgear to satisfy the five-prevention interlocking requirement of safe operation, promptly: the circuit breaker is prevented from being wrongly opened and closed; the isolating switch is prevented from being pulled and closed under the load; prevent the electrified misconnection from switching on the earthing switch; preventing the circuit breaker with the grounding wire from being connected; prevent the mistaken entering of the charged gap.
The existing switch cabinet is internally provided with a switch unit and an operating mechanism, wherein the switch unit comprises a circuit breaker and a disconnecting switch, in order to ensure the safety of electrical equipment and personnel, the circuit breaker and the disconnecting switch need to be designed to be interlocked and matched according to the relevant national standards, the disconnecting switch is firstly switched on and then switched on when power is transmitted according to a correct operation sequence, the circuit breaker is firstly switched off and then switched on when power is cut off, and the disconnecting switch is required to be switched on and off without load, so that the aim of not operating the disconnecting switch by mistake when the circuit breaker is switched on and not switching on the circuit breaker by mistake when the disconnecting switch is operated is fulfilled. However, the existing interlocking mechanism usually shields the isolation operation port on the operation mechanism and the circuit breaker operation port to realize interlocking, and the interlocking mechanism usually only can limit the manual switching-on operation of the circuit breaker, but still cannot reliably limit the electric switching-on of the circuit breaker, so that a leak of misoperation exists, and safety accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the manual combined floodgate operation that interlocking device among the prior art can only restrict the circuit breaker usually, but can not restrict the electronic combined floodgate operation of circuit breaker, has the problem of the potential safety hazard of maloperation.
In order to solve the technical problem, the utility model provides an interlocking device of a switch cabinet, which is arranged between a circuit breaker and an operating mechanism in a cabinet body, wherein the operating mechanism is rotatably arranged on the cabinet body and is provided with an operating position for driving an isolating switch to open and close when the circuit breaker is opened and a locking position which is limited by the interlocking device and can not rotate when the circuit breaker is closed; the circuit breaker comprises a manual closing button arranged on an operation panel and a travel switch arranged on the lower side of the manual closing button and used for controlling the on-off of an electric closing power supply of the circuit breaker;
the interlocking device comprises a first interlocking structure connected with the operating mechanism, the first interlocking structure comprises a locking guide rod which can be arranged between the manual closing button and the travel switch in a reciprocating mode, the travel switch is arranged opposite to one end of the locking guide rod, and the locking guide rod moves downwards to shield the manual closing button when the operating mechanism is at an operating position and touches and presses the travel switch to be opened; the locking guide rod moves upwards to be far away from the manual closing button and the travel switch when the operating mechanism is in the locking position.
As a preferable scheme, the circuit breaker includes a main shaft extending out of one side of the circuit breaker, the interlocking device further includes a second interlocking structure movably connected between the operating mechanism and the main shaft, the main shaft is driven to form a limit fit for limiting the rotation of the operating mechanism with the second interlocking structure when the circuit breaker is switched on, and the main shaft is driven to release the limit fit with the second interlocking structure when the circuit breaker is switched off.
As a preferable scheme, the first interlocking structure comprises a first connecting rod which is rotatably arranged at the upper part of the circuit breaker and is driven by an operating mechanism, and a connecting rod connecting lever which is arranged on the first connecting rod and is hinged with the other end of the locking guide rod, and the operating mechanism pushes the first connecting rod to rotate when in an operating position, so that the first connecting rod drives the locking guide rod to move downwards in the rotating process.
Preferably, the first link is provided with a return spring for driving the first link to rotate in a return mode, and the operating mechanism is separated from the first link in the locking position, so that the first link drives the locking guide rod to move upwards under the action of the return spring.
As a preferred scheme, operating device includes twist grip and the bulldoze board that links to each other with twist grip, be provided with the driving plate relative with bulldozing the board on one end of first connecting rod, operating device drives when rotating bulldoze the board and to being close to or keeping away from the driving plate one side rotates.
As a preferable scheme, the first connecting rod is arranged perpendicular to the extending direction of the locking guide rod.
As a preferable scheme, the second interlocking structure comprises a second connecting rod connected with the operating mechanism, a limiting groove arranged at the lower end of the second connecting rod, and a limiting plate which is arranged on the main shaft in an interlocking manner and forms limiting fit with the limiting groove, and the operating mechanism drives the second connecting rod to move up and down when rotating; the main shaft drives the limiting plate to be inserted into the limiting groove to limit the second connecting rod to move when the breaker is switched on; the main shaft drives the limiting plate to be separated from the limiting groove when the breaker is opened, so that the movement limitation of the second connecting rod is removed.
As a preferred scheme, the cabinet is internally provided with a mounting plate, a guide structure is arranged between the mounting plate and the second connecting rod, and the guide structure comprises a guide sliding hole which is arranged on the second connecting rod in an extending mode along the vertical direction and a guide sliding block which is fixed on the mounting plate and is connected to the guide sliding hole in a sliding mode.
As a preferred scheme, the upper end of the second connecting rod is provided with a waist-shaped hole, the operating mechanism is movably arranged in the waist-shaped hole in a penetrating manner through the connecting shaft, and the limiting groove is of a U-shaped groove structure formed at the lower end of the second connecting rod.
The utility model discloses technical scheme has following advantage compared in prior art:
1. the utility model provides an among the interlock device of cubical switchboard, when rotating the switching position between operating position and latched position according to operating device, can drive the shutting guide arm and make reciprocating motion between manual combined floodgate button and travel switch, when operating device was in operating position, the shutting guide arm moved down shelters from manual combined floodgate button and touches and presses travel switch and open to cut off the electronic combined floodgate power of circuit breaker through travel switch, the circuit breaker at this moment can not carry out manual and electronic combined floodgate operation, but can normally carry out isolator's deciliter operation, thereby the circuit breaker of misconnection when preventing to operate isolator; when the operating mechanism is in a locking position, the locking guide rod moves upwards to be away from the manual closing button and the travel switch, the circuit breaker can normally execute manual and electric closing operation at the moment, meanwhile, the operating mechanism is limited by the interlocking device and cannot rotate to an operating position, and the disconnecting switch cannot be operated to perform opening and closing actions, so that the interlocking effect that the disconnecting switch cannot be opened and closed with load is achieved.
2. The utility model provides an among the interlock of cubical switchboard, this interlock has included first interlock and second interlock, operating device plays the interlocking to the circuit breaker through first interlock to prevent to mistake when operating isolator and close the circuit breaker, and the restriction circuit breaker carries out any manual and electronic combined floodgate operation, and is corresponding, the circuit breaker plays the interlocking to operating device through second interlock, carries out any action through restriction operating device, in order to prevent to mistake when the circuit breaker closes a floodgate and opens and close isolator, thereby makes the cubical switchboard satisfy five safe operation regulations of preventing interlocking, safe and reliable.
3. The utility model provides an among the interlock of cubical switchboard, guide structure is including extending the direction slide opening that sets up on the second connecting rod to and fix the direction slider in mounting panel and sliding connection in the direction slide opening, this kind of structure setting, the second connecting rod can receive the thrust effect of the rotatory production of operating device, and is right through the sliding fit of direction slider and direction slide opening the second connecting rod plays the motion guide effect, guarantees the second connecting rod is reciprocating along vertical direction under operating device's drive, avoids taking place the position and rocks and the incline condition, and the cooperation transmission is reliable, and stability is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.
Fig. 1 is a schematic structural view of an interlocking device of a switch cabinet provided by the present invention;
fig. 2 is a schematic view of the interlock apparatus of the present invention with the operating mechanism in the operating position;
FIG. 3 is a cross-sectional side view of the interlock device shown in FIG. 2;
fig. 4 is a schematic structural view of the interlock device of the present invention when the operating mechanism is in the locked position;
FIG. 5 is a cross-sectional side view of the interlock device shown in FIG. 4;
description of reference numerals: 1. a circuit breaker; 11. a main shaft; 2. an operating mechanism; 21. rotating the handle; 22. a push plate; 3. a first interlock structure; 31. locking the guide rod; 32. a first link; 33. a connecting rod crank arm; 34. a drive plate; 4. a second interlocking structure; 41. a second link; 42. a limiting groove; 43. a limiting plate; 5. a manual closing button; 6. a travel switch; 7. a guide structure; 71. mounting a plate; 72. a guide slide hole; 73. a guide slide block; 8. a cabinet body.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment is described in detail below with reference to the accompanying drawings:
the embodiment provides an interlocking device of a switch cabinet as shown in fig. 1-5, which is arranged between a circuit breaker 1 and an operating mechanism 2 in a cabinet body 8, wherein the operating mechanism 2 is rotatably arranged on the cabinet body 8 and has an operating position for driving an isolating switch to open and close when the circuit breaker 1 is opened and a locking position which is restricted by the interlocking device and can not rotate when the circuit breaker 1 is closed; the circuit breaker 1 comprises a manual closing button 5 arranged on an operation panel and a travel switch 6 arranged on the lower side of the manual closing button 5 and used for controlling the on-off of an electric closing power supply of the circuit breaker 1;
the interlocking device comprises a first interlocking structure 3 connected with the operating mechanism 2, the operating mechanism 2 drives the first interlocking structure 3 to act when in a rotating position, the first interlocking structure 3 comprises a locking guide rod 31 which can be arranged between the manual closing button 5 and the travel switch 6 in a reciprocating manner, the travel switch 6 is arranged opposite to one end of the locking guide rod 31, and the locking guide rod 31 moves downwards to shield the manual closing button 5 when the operating mechanism 2 is in the operating position and touches the travel switch 6 to open; the locking link 31 is moved upwards away from the manual closing button 5 and the travel switch 6 when the actuating mechanism 2 is in the locked position.
In the above embodiment, when the operating mechanism 2 is rotationally switched between the operating position and the locking position, the locking guide rod 31 is driven to reciprocate between the manual closing button 5 and the travel switch 6, and when the operating mechanism 2 is in the operating position, the locking guide rod 31 moves downwards to shield the manual closing button 5 and touch and press the travel switch 6 to open, so that the electric closing power supply of the circuit breaker 1 is cut off through the travel switch 6, and the circuit breaker at this time cannot perform manual and electric closing operations, but can normally perform opening and closing operations of the disconnecting switch, so as to prevent the circuit breaker from being closed by mistake when the disconnecting switch is operated; when the operating mechanism 2 is in the locking position, the locking guide rod 31 moves upwards to be away from the manual closing button 5 and the travel switch 6, the circuit breaker can normally execute manual and electric closing operation at the moment, meanwhile, the operating mechanism is limited by the interlocking device and cannot rotate to the operating position, and the opening and closing action of the isolating switch cannot be operated, so that the interlocking effect that the isolating switch cannot be opened and closed with a load is achieved, the interlocking requirement between the isolating switch and the circuit breaker can be met by the interlocking device adopting the technical scheme, the related operation of the switch cabinet is carried out according to the correct operation sequence, unnecessary risks caused by misoperation are prevented, and the use safety and reliability of the switch cabinet are improved.
As a preferred embodiment, the circuit breaker 1 includes a main shaft 11 extending out of one side thereof, the interlock device further includes a second interlock structure 4 movably connected between the operating mechanism 2 and the main shaft 11, the main shaft 11 is driven to form a limit fit for limiting the rotation of the operating mechanism 2 with the second interlock structure 4 when the circuit breaker 1 is switched on, and the main shaft 11 is driven to release the limit fit with the second interlock structure 4 when the circuit breaker 1 is switched off. From the above, the interlocking device provided by this embodiment includes the first interlocking structure 3 and the second interlocking structure 4, and in the state that the circuit breaker is opened, the operating mechanism 2 plays an interlocking role on the circuit breaker through the first interlocking structure 3 to prevent the circuit breaker from being closed by mistake when operating the disconnecting switch, and limits the circuit breaker to perform any manual and electric closing operation, and correspondingly, in the state that the circuit breaker is closed, the circuit breaker plays an interlocking role on the operating structure through the second interlocking structure 4, and through the rotation operation of the limiting operating mechanism, the disconnecting switch is prevented from being opened by mistake when the circuit breaker is closed, so that the switch cabinet meets the safety operation regulation of five-prevention interlocking, and is safe and reliable.
The specific arrangement of the first and second interlocking structures will be described in detail below with reference to fig. 2-5:
the first interlocking structure 3 comprises a first connecting rod 32 which is rotatably arranged at the upper part of the circuit breaker and is driven by the operating mechanism 2, and a connecting rod connecting lever 33 which is arranged on the first connecting rod 32 and is hinged with the other end of the locking guide rod 31, the extending direction of the first connecting rod 32 and the extending direction of the locking guide rod 31 are perpendicular, a guide hole which can enable the locking guide rod 31 to extend into the position of the manual closing button 5 is correspondingly arranged on the circuit breaker, the operating mechanism 2 pushes the first connecting rod 32 to rotate when in the operating position, so that the first connecting rod 32 drives the locking guide rod 31 to move downwards in the rotating process, the interlocking transmission fit among the operating mechanism, the first connecting rod and the locking guide rod is realized, the manual closing button 5 is shielded through the locking guide rod 31 and the travel switch 6 is touched and pressed, and the manual and electric closing operation of the circuit breaker is limited; the first connecting rod 32 is provided with a return spring for driving the first connecting rod to rotate in a resetting mode, the operating mechanism 2 is separated from the first connecting rod 32 when the operating mechanism is in a locking position, so that the first connecting rod 32 drives the locking guide rod 31 to move upwards under the action of the return spring, automatic resetting of the first connecting rod and the locking guide rod is achieved, the locking guide rod does not shield the manual closing button any more, and meanwhile, the first connecting rod is separated from the travel switch, and the travel switch can be connected with an electric closing power supply of the circuit breaker.
As a specific structural arrangement, the operating mechanism 2 includes a rotating handle 21 and a pushing plate 22 connected to the rotating handle 21, a transmission plate 34 opposite to the pushing plate 22 is disposed at one end of the first connecting rod 32, the operating mechanism 2 drives the pushing plate 22 to rotate towards or away from one side of the transmission plate 34 when rotating, and the pushing plate 22 pushes against the transmission plate 34, so as to drive the first connecting rod to rotate to realize the downward movement of the locking guide rod.
In this embodiment, the second interlocking structure include with the second connecting rod 41 that operating device 2 links to each other, and set up the spacing groove 42 of second connecting rod 41 lower extreme, and the linkage setting is in on the main shaft 11 and with spacing groove 42 forms spacing complex limiting plate 43, and is specific, the upper end of second connecting rod 41 is equipped with waist shape hole, operating device 2 wears to locate through the connecting axle activity in the waist shape hole, spacing groove 42 for the shaping in the U-shaped groove structure of the lower extreme of second connecting rod 41, the operating device 2 that sets up like this drives when rotating second connecting rod 41 does and reciprocates. With reference to fig. 4-5, the main shaft 11 drives the limit plate 43 to rotate and insert into the limit groove 42 when the circuit breaker is switched on, and limits the second connecting rod 41 to move, so that the second connecting rod is limited, and the second connecting rod 41 is blocked from moving to limit the rotation operation of the operating mechanism 2, so that the interlocking requirement that the disconnecting switch cannot be switched on and off with a load when the circuit breaker is switched on is met, and the use is safe and reliable; referring to fig. 2-3, only when the circuit breaker back of separating brake, main shaft 11 can drive limiting plate 43 breaks away from spacing groove 42, it is right to remove the removal restriction of second connecting rod, at this moment operation structure can switch between latched position and operating position and rotate, can drive simultaneously the second connecting rod does and reciprocates between operating device and main shaft, according to the interlocking cooperation between operation structure and circuit breaker and the first interlocking structure operation structure switches to operating position and can play the interlocking effect to the circuit breaker through first interlocking structure again, so design has realized the interlocking cooperation between circuit breaker and the isolator in the cubical switchboard, ensures equipment and personal safety, prevents the maloperation.
As shown in fig. 2, a mounting plate 71 is disposed in the cabinet 8, a guide structure 7 is disposed between the mounting plate 71 and the second link 41, and the guide structure 7 includes a guide sliding hole 72 extending in the vertical direction and disposed on the second link 41, and a guide slider 73 fixed to the mounting plate 71 and slidably connected to the guide sliding hole 72. Due to the structural arrangement, the second connecting rod 41 can be subjected to the thrust generated by the rotation of the operating mechanism 2, and the second connecting rod is guided by the sliding fit of the guide sliding block and the guide sliding hole, so that the second connecting rod 41 is ensured to move up and down in the vertical direction under the driving of the operating mechanism 2, the situations of position shaking and deflection are avoided, the matching transmission is reliable, and the stability is good.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (9)
1. An interlocking device of a switch cabinet is arranged between a circuit breaker (1) and an operating mechanism (2) in a cabinet body (8), wherein the operating mechanism (2) is rotatably arranged on the cabinet body and is provided with an operating position for driving a disconnecting switch to be switched on and off when the circuit breaker (1) is switched off and a locking position which is limited by the interlocking device to be incapable of rotating when the circuit breaker (1) is switched on; the circuit breaker (1) comprises a manual closing button (5) arranged on an operation panel and a travel switch (6) arranged on the lower side of the manual closing button (5) and used for controlling the on-off of an electric closing power supply of the circuit breaker (1); the method is characterized in that:
the interlocking device comprises a first interlocking structure (3) connected with the operating mechanism (2), the first interlocking structure (3) comprises a locking guide rod (31) which can be arranged between the manual closing button (5) and a travel switch (6) in a reciprocating mode, the travel switch (6) is arranged opposite to one end of the locking guide rod (31), and the locking guide rod (31) moves downwards to shield the manual closing button (5) when the operating mechanism is in an operating position and is opened by touching and pressing the travel switch (6); the locking guide rod (31) moves upwards to be far away from the manual closing button (5) and the travel switch (6) when the operating mechanism is in a locking position.
2. The interlocking device of a switch cabinet according to claim 1, characterized in that: breaker (1) is including main shaft (11) that stretches out its one side, interlock still includes swing joint operating device (2) with second interlock structure (4) between main shaft (11), drive main shaft (11) when the breaker is closed a floodgate with second interlock structure (4) form and are used for restricting operating device (2) pivoted spacing cooperation to and drive main shaft (11) when the breaker is opened a floodgate with second interlock structure (4) are relieved spacing cooperation.
3. An interlocking device for a switchgear cabinet according to claim 1 or 2, characterized in that: first interlocking structure (3) including rotate set up in circuit breaker (1) upper portion and receive operating device (2) driven first connecting rod (32), and set up first connecting rod (32) go up with the articulated connecting rod connecting lever (33) that link up of shutting guide arm (31) other end, operating device (2) promote when operating position first connecting rod (32) rotate to make first connecting rod (32) drive in the rotation process shutting guide arm (31) move down.
4. The interlocking device of a switch cabinet according to claim 3, characterized in that: the first connecting rod (32) is provided with a return spring for driving the first connecting rod to rotate in a return mode, and the operating mechanism (2) is separated from the first connecting rod (32) when in a locking position, so that the first connecting rod (32) drives the locking guide rod (31) to move upwards under the action of the return spring.
5. The switchgear cabinet interlock device according to claim 4, wherein: operating device (2) including twist grip (21) and the bulldoze board (22) that link to each other with twist grip (21), be provided with on one end of first connecting rod (32) and bulldoze the transmission board (34) that board (22) are relative, operating device drives when rotating bulldoze board (22) to being close to or keeping away from transmission board (34) one side is rotated.
6. The interlocking device of a switch cabinet according to claim 5, characterized in that: the first connecting rod (32) and the extension direction of the locking guide rod (31) are arranged perpendicularly.
7. The interlock device for a switchgear cabinet according to claim 2, wherein: the second interlocking structure comprises a second connecting rod (41) connected with the operating mechanism (2), a limiting groove (42) arranged at the lower end of the second connecting rod (41), and a limiting plate (43) which is arranged on the main shaft (11) in an interlocking manner and forms limiting fit with the limiting groove (42), and the operating mechanism drives the second connecting rod (41) to move up and down when rotating; the main shaft (11) drives the limiting plate (43) to be inserted into the limiting groove (42) when the circuit breaker is switched on so as to limit the movement of the second connecting rod (41); the main shaft (11) drives the limiting plate (43) to be separated from the limiting groove (42) when the breaker is opened, so that the movement limitation of the second connecting rod (41) is removed.
8. The interlock device for a switchgear cabinet according to claim 7, wherein: be provided with mounting panel (71) in the cabinet body (8), mounting panel (71) with be provided with guide structure (7) between second connecting rod (41), guide structure (7) are including extending along vertical direction and set up direction slide opening (72) on second connecting rod (41) and fix mounting panel (71) and sliding connection in direction slider (73) in direction slide opening (72).
9. The switchgear cabinet interlock device according to claim 8, wherein: the upper end of second connecting rod (41) is equipped with waist shape hole, operating device (2) wear to locate through the connecting axle activity in the waist shape hole, spacing groove (42) for the shaping in the U-shaped groove structure of the lower extreme of second connecting rod (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222360493.2U CN217933519U (en) | 2022-09-02 | 2022-09-02 | Interlocking device of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222360493.2U CN217933519U (en) | 2022-09-02 | 2022-09-02 | Interlocking device of switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN217933519U true CN217933519U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222360493.2U Active CN217933519U (en) | 2022-09-02 | 2022-09-02 | Interlocking device of switch cabinet |
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| CN (1) | CN217933519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116403850A (en) * | 2023-04-27 | 2023-07-07 | 江苏汇力智能科技有限公司 | Anti-false touch mechanism of separating brake |
-
2022
- 2022-09-02 CN CN202222360493.2U patent/CN217933519U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116403850A (en) * | 2023-04-27 | 2023-07-07 | 江苏汇力智能科技有限公司 | Anti-false touch mechanism of separating brake |
| CN116403850B (en) * | 2023-04-27 | 2024-05-07 | 江苏汇力智能科技有限公司 | Anti-false touch mechanism of separating brake |
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Effective date of registration: 20230908 Granted publication date: 20221129 |