CN220873471U - Two-in-one program lock device for grounding switch and rear door - Google Patents
Two-in-one program lock device for grounding switch and rear door Download PDFInfo
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- CN220873471U CN220873471U CN202322453393.9U CN202322453393U CN220873471U CN 220873471 U CN220873471 U CN 220873471U CN 202322453393 U CN202322453393 U CN 202322453393U CN 220873471 U CN220873471 U CN 220873471U
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Abstract
The utility model relates to the technical field of high-voltage power transmission and distribution, in particular to a two-in-one program lock device for a grounding switch and a rear door. The novel lock comprises a grounding switch, a rear door locking mechanism, a first program lock and a second program lock, wherein the first program lock and the second program lock share the same key, the first program lock is arranged at the grounding switch and is mutually interlocked, the rear door locking mechanism and the second program lock are both arranged on a rear door of a cabinet body, the rear door locking mechanism and the second program lock are mutually interlocked, the first program lock is blocked when the grounding switch is opened, the second program lock is blocked when the rear door is not closed, and keys of the first program lock and the second program lock cannot be pulled out when the rear door is not closed. The device adopts the program lock respectively arranged at the grounding switch and the rear door, and can only be combined together, so that when the disconnecting link of the grounding switch is closed, the rear door can be unlocked and opened, and when the rear door is not closed, the grounding switch can not be opened. And the program lock adopts a conventional standard lock, so that the processing and the installation are convenient, and the cost is low.
Description
Technical Field
The utility model relates to the technical field of high-voltage power transmission and distribution, in particular to a two-in-one program lock device for a grounding switch and a rear door.
Background
At present, in actual production operation, a line of incoming wires can be additionally arranged on a voltage transformer cabinet, so that the voltage transformer cabinet is convenient to overhaul, and a rear door is required to be arranged for maintenance of the voltage transformer. At present, the common practice is that the grounding switch operation shaft and the rear door of the switch cabinet are respectively provided with an electromagnetic lock, and when the isolation disconnecting link of the switch cabinet is disconnected, the electromagnetic locks are in power failure and unlock, so that the grounding operation shaft can be operated and the lower door can be opened.
According to the scheme, although the disconnecting switch is in the opening state when the rear door is opened, when the grounding switch is not closed, the rear door can be opened, and when the rear door is not closed, the grounding switch can be opened and then the disconnecting switch is closed to electrify, so that certain potential safety hazards exist.
Disclosure of utility model
The utility model provides a two-in-one program lock device for a grounding switch and a rear door, and aims to solve the problem that potential safety hazards exist when an electromagnetic lock is adopted for interlocking an existing switch cabinet.
The utility model provides a two-in-one program lock device for a grounding switch and a rear door, which comprises the grounding switch, a rear door locking mechanism, a first program lock and a second program lock, wherein the first program lock and the second program lock share the same key, the first program lock is arranged at the grounding switch and is mutually interlocked, the rear door locking mechanism and the second program lock are both arranged on the rear door of a cabinet body, the rear door locking mechanism and the second program lock are mutually interlocked, the first program lock is blocked to be locked when the grounding switch is opened, the second program lock is blocked by the rear door locking mechanism when the rear door is not closed, and the keys of the first program lock and the second program lock cannot be pulled out when the rear door is not closed.
As a further improvement of the utility model, the first program lock comprises a first key hole, a first lock cylinder and a baffle plate, the grounding switch is provided with a grounding operation shaft, the key is connected with the first key hole, the baffle plate is connected with the first lock cylinder, and the first lock cylinder drives the baffle plate to move and be blocked on the grounding operation shaft when the first program lock is unlocked by the key when the grounding switch is closed.
As a further improvement of the utility model, the grounding operation shaft is provided with a cam block, the cam block is of an eccentric wheel structure taking the grounding operation shaft as a circle center, the cam block is provided with a protruding part and a flat part, and the cam block is rotated until the protruding part faces the baffle plate and is blocked on the moving track of the baffle plate when the grounding switch is disconnected; and when the grounding switch is switched on, the cam block is rotated until the flat part faces the blocking piece and avoids the moving track of the blocking piece.
As a further improvement of the utility model, the baffle plate is provided with a moving part for contacting with the cam block and a shielding part for shielding the grounding operation shaft, the moving part and the shielding part are in bending connection, the moving part is fixedly connected with the first lock cylinder, and the shielding part is spatially staggered with the grounding operation shaft.
As a further improvement of the utility model, the rear door locking mechanism comprises a bracket and a locking rod, wherein a baffle is arranged on the cabinet body, the bracket is arranged on the rear door, the locking rod is elastically connected with the bracket, the bottom of the locking rod penetrates through the bracket, and the bottom of the locking rod is contacted with the baffle in the closed state of the rear door.
As a further improvement of the utility model, the rear door locking mechanism further comprises a spring and a pin rod, wherein the locking rod is provided with a pin hole, the pin rod is inserted in the pin hole, the top of the spring is in contact with the bracket, and the bottom of the spring is in contact with the pin rod.
As a further improvement of the utility model, the second program lock comprises a second key hole, a second lock cylinder and a striking plate, wherein the key is connected with the second key hole, the striking plate is connected with the second lock cylinder, the striking plate is provided with a lock hole, and the lock hole is sleeved on the locking rod.
As a further improvement of the utility model, the lock hole comprises a locking Kong Hejie lock hole, the locking Kong Hejie lock hole is communicated, the locking rod comprises a rod body and a rod cap, the rod cap is connected to the top of the rod body, the aperture of the locking hole is larger than the diameter of the rod body and smaller than the diameter of the rod cap, and the aperture of the unlocking hole is larger than the diameter of the rod cap.
The beneficial effects of the utility model are as follows: the device adopts the program lock respectively arranged at the grounding switch and the rear door, and can only be combined together, so that when the disconnecting link of the grounding switch is closed, the rear door can be unlocked and opened, and when the rear door is not closed, the grounding switch can not be opened. And the program lock adopts a conventional standard lock, so that the processing and the installation are convenient, and the cost is low.
Drawings
FIG. 1 is a front view of a grounding switch of the present utility model in a configuration engaged with a first program lock during a grounding switch-on;
FIG. 2 is a top view of the structure of the grounding switch of the present utility model mated with the first program lock when the grounding switch is grounded;
FIG. 3 is a front view of the structure of the grounding switch of the present utility model in cooperation with the first program lock when the grounding switch is opened;
FIG. 4 is a top view of the structure of the grounding switch of the present utility model mated with the first program lock when the grounding switch is opened;
FIG. 5 is a front elevational view of the rear door latch mechanism and the second program lock of the present utility model mounted to the cabinet;
FIG. 6 is a top plan view of the rear door latch mechanism and the second program lock of the present utility model mounted to the cabinet;
FIG. 7 is a side elevational view of the rear door latch mechanism of the present utility model;
FIG. 8 is a front elevational view of the rear door latch mechanism of the present utility model;
FIG. 9 is a front elevational view of the rear door latch mechanism mated with the second program lock when the rear door is not closed in accordance with the present utility model;
FIG. 10 is a top plan view of the configuration of the rear door latch mechanism in cooperation with the second program lock when the rear door is not closed in accordance with the present utility model;
FIG. 11 is a side elevational view of the configuration of the rear door latch mechanism in cooperation with the second program lock when the rear door is not closed in accordance with the present utility model;
FIG. 12 is a front elevational view of the rear door latch mechanism mated with the second program lock when the rear door is closed in accordance with the present utility model;
FIG. 13 is a top plan view of the configuration of the rear door latch mechanism in cooperation with the second program lock when the rear door is closed in accordance with the present utility model;
FIG. 14 is a side elevational view of the arrangement of the rear door latch mechanism in cooperation with the second program lock when the rear door is closed in accordance with the present utility model;
fig. 15 is a structural view of the striking plate of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
As shown in fig. 1 to 14, the two-in-one program lock device for a grounding switch and a rear door of the present utility model includes a grounding switch 2, a rear door locking mechanism 4, a first program lock 1, and a second program lock 3, wherein the first program lock 1 and the second program lock 3 share the same key, the first program lock 1 is disposed at the grounding switch 2 and interlocked with each other, the rear door locking mechanism 4 and the second program lock 3 are both mounted on a rear door 6 of a cabinet body 5, the rear door locking mechanism 4 and the second program lock 3 are interlocked with each other, the first program lock 1 is blocked when the grounding switch 2 is opened, the rear door locking mechanism 4 blocks the second program lock 3 when the rear door 6 is not closed, and the keys of the first program lock 1 and the second program lock 3 cannot be pulled out in the non-locked state.
The same key is used for the operation of the first program lock 1 and the second program lock 3, the key cannot be pulled out when the first program lock 1 and the second program lock 3 are in the unlocking state, the key can be pulled out only when the first program lock 1 and the second program lock 3 are in the locking state, and the interlocking between the first program lock 1 and the second program lock 3 is realized through the same key. The first program lock 1 is used for limiting the operation of the grounding switch 2 when being locked, and the second program lock 3 is used for locking the rear door 6 on the cabinet 5 when being locked.
The first program lock 1 is matched with the grounding switch 2, when the grounding switch 2 is switched off, the grounding switch 2 blocks the first program lock 1 from locking, at the moment, a key of the first program lock 1 cannot be pulled out, meanwhile, the rear door 6 is closed on the cabinet body 5, and the rear door 6 cannot be opened due to the fact that no key is used for unlocking the second program lock 3; when the grounding switch 2 is switched on, the grounding switch 2 does not block the first program lock 1, the key can be pulled out after the first program lock 1 is locked, the unlocking of the second program lock 3 is operated, and at the moment, the rear door 6 can be opened.
The second program lock 3 is matched with the rear door locking mechanism 4, when the rear door 6 is not closed, the rear door locking mechanism 4 blocks the second program lock 3 to be locked, at the moment, the second program lock 3 is in an unlocking state, a key cannot be pulled out of the second program lock 3, the rear door 6 can be randomly opened from the cabinet body 5, meanwhile, the first program lock 1 is in a locking state, the grounding switch 2 is limited to be in a closing state, and the key can be pulled out of the first program lock 1 for the operation of the second program lock 3; when the rear door 6 is closed, the rear door locking mechanism 4 does not block the second program lock 3, at this time, the second program lock 3 can complete locking to lock the rear door 6 on the cabinet 5, and the key can be pulled out from the second program lock 3, at this time, the limitation of the grounding switch 2 can be unlocked by the operation of the first program lock 1 of the key, and the grounding switch 2 can perform opening and closing operations at will.
As shown in fig. 1 to 4, the first program lock 1 includes a first key hole 11, a first lock cylinder 12, and a blocking piece 13, the grounding switch 2 is provided with a grounding operation shaft 21, the key is connected with the first key hole 11, the blocking piece 13 is connected with the first lock cylinder 12, and when the first program lock 1 is unlocked by the key when the grounding switch 2 is closed, the blocking piece 13 is driven by the first lock cylinder 12 to move and is blocked on the grounding operation shaft 21.
After the key is inserted into the first key hole 11, the movement of the first lock cylinder 12 can be controlled to lock or unlock through rotation, the blocking piece 13 is located at one end of the first lock cylinder 12 close to the grounding operation shaft 21, the blocking piece 13 can move synchronously along with the first lock cylinder 12, when the first lock cylinder 12 moves to unlock towards the grounding operation shaft 21 (as in the right direction of fig. 1 to 4), under the condition that the grounding switch 2 is closed, the blocking piece 13 can be piled up to cover the grounding operation shaft 21, at this time, a person cannot touch the grounding operation shaft 21 to operate, and misoperation of opening the grounding switch 2 by the person can be avoided.
The grounding operation shaft 21 is provided with a cam block 22, the cam block 22 is of an eccentric wheel structure taking the grounding operation shaft 21 as a circle center, the cam block 22 is provided with a protruding part 23 and a flat part 24, and when the grounding switch 2 is disconnected, the cam block 22 is rotated until the protruding part 23 faces the baffle 13 and is blocked on the moving track of the baffle 13; when the grounding switch 2 is closed, the cam block 22 is rotated until the flat portion 24 faces the blocking piece 13 and avoids the moving track of the blocking piece 13.
The cam block 22 is structured as an eccentric wheel, and the positional relationship between the cam block 22 and the shutter 13 can be changed in synchronization by the rotational operation of the ground operation shaft 21. As shown in fig. 1 and 2, when the grounding operation shaft 21 is rotated to the grounding switch 2 in the closing state, the flat portion 24 of the cam block 22 rotates to face the blocking piece 13, at this time, the second lock cylinder 32 can drive the blocking piece 13 to freely move, so as to realize locking or unlocking operation, and when unlocking, the blocking piece 13 can be blocked on the grounding operation shaft 21, so that the grounding switch 2 is blocked from being operated. As shown in fig. 3 and fig. 4, when the grounding operation shaft 21 is rotated to the grounding switch 2 to be in the opening state, the protruding portion 23 of the cam block 22 rotates to face the blocking piece 13, at this time, the protruding portion 23 occupies the position of the blocking piece 13 moving to the right, at this time, the second lock cylinder 32 cannot move to the direction of the grounding switch 2 to complete unlocking, and the key cannot be pulled out, so that the interlocking structure of the cam block 22 to the second program lock 3 is realized.
The blocking piece 13 is provided with a moving part 14 for contacting with the cam block 22 and a shielding part 15 for shielding the grounding operation shaft 21, the moving part 14 and the shielding part 15 are in bending connection, the moving part 14 is fixedly connected with the first lock cylinder 12, and the shielding part 15 is spatially staggered with the grounding operation shaft 21. The first lock cylinder 12 directly drives the moving part 14 to drive the shielding part 15 to displace, the moving part 14 can be perpendicular to the cam block 22, when the grounding switch 2 is switched on and the first program lock 1 is unlocked, the moving part 14 directly shields the flat part 24 of the cam block 22, the clamping column cam block 22 is placed to rotate, and at the moment, the shielding part 15 is also covered above the grounding operation shaft 21; when the grounding switch 2 is disconnected, the moving part 14 is blocked by the protruding part 23 of the cam block 22 and cannot move, so that unlocking of the first program lock 1 is limited, and at the moment, the shielding part 15 is far away from the grounding operation shaft 21, so that a person can normally operate the grounding switch 2. The length of the shielding portion 15 is smaller than the length of the edge of the protruding portion 23 from the circular shape, thereby ensuring that the shielding portion 15 does not cover the ground operation shaft 21 when the ground switch 2 is turned off. The design of the shielding part 15 to be spatially offset from the ground operation shaft 21 ensures that the shielding part 15 can move over the ground operation shaft 21 without hitting the ground operation shaft 21.
As shown in fig. 5 to 14, the rear door locking mechanism 4 includes a bracket 41, a locking lever 42, a shutter 7 is provided on the cabinet 5, the bracket 41 is mounted on the rear door 6, the locking lever 42 is elastically connected with the bracket 41 and the bottom of the locking lever 42 passes through the bracket 41, and the bottom of the locking lever 42 contacts the shutter 7 in the closed state of the rear door 6. The position of the baffle 7 on the cabinet body 5 corresponds to the position of the bracket 41 on the rear door 6, when the rear door 6 is closed on the cabinet body 5, the bottom of the locking rod 42 can be contacted with the baffle 7, and because the distance between the baffle 7 and the bracket 41 is smaller than the protruding distance of the bottom of the locking rod 42, the baffle 7 can jack up the locking rod 42 outwards against the elastic force, when the rear door 6 is opened, the baffle 7 is disconnected from the contact with the locking rod 42, and the locking rod 42 can reset under the action of the elastic force and protrudes towards the bottom of the bracket 41.
As shown in fig. 7 and 8, the rear door locking mechanism 4 further includes a spring 43 and a pin 44, the locking lever 42 is provided with a pin hole 45, the pin 44 is inserted into the pin hole 45, the top of the spring 43 is in contact with the bracket 41, and the bottom of the spring 43 is in contact with the pin 44. The two ends of the spring 43 are respectively abutted against the bracket 41 and the pin rod 44 to provide elastic force for the locking rod 42, when the baffle 7 props against the locking rod 42, the locking rod 42 can be jacked under the condition of compressing the spring 43, after the rear door 6 is opened, the supporting force of the baffle 7 is lost, and the spring 43 resets under the action of the elastic force and applies thrust to the pin rod 44 at the bottom, so that the bottom of the locking rod 42 protrudes out of the bottom of the bracket 41 again.
The second program lock 3 comprises a second keyhole 31, a second lock cylinder 32 and a lock tongue piece 33, wherein a key is connected with the second keyhole 31, the lock tongue piece 33 is connected with the second lock cylinder 32, the lock tongue piece 33 is provided with a lock hole 34, and the lock hole 34 is sleeved on the locking rod 42. The lock tongue piece 33 is limited on the lock rod 42 through the lock hole 34, when the lock rod 42 is jacked up by the baffle 7, the lock rod 42 is separated from the limit of the lock hole 34, and at the moment, the second lock cylinder 32 can drive the lock tongue piece 33 to move randomly to lock or unlock; when the lock lever 42 is reset downward, the lock lever 42 blocks the lock hole 34, and the movement of the striking plate 33 is limited, at this time, the second lock cylinder 32 cannot be moved to lock, and the key cannot be pulled out from the second program lock 3.
As shown in fig. 15, the locking hole 34 includes a locking hole 35 and an unlocking hole 36, the locking hole 35 and the unlocking hole 36 are communicated, the locking lever 42 includes a lever body 46 and a lever cap 47, the lever cap 47 is connected to the top of the lever body 46, the aperture of the locking hole 35 is larger than the diameter of the lever body 46 and smaller than the diameter of the lever cap 47, and the aperture of the unlocking hole 36 is larger than the diameter of the lever cap 47. The diameter of the rod body 46 is smaller than the rod cap 47, and the aperture of the locking hole 35 is smaller than the unlocking hole 36. As shown in fig. 9 to 14, the locking hole 35 is located at the left end of the unlocking hole 36, when the locking rod 42 is jacked up, the locking hole 34 is abutted with the rod body 46, at this time, the locking hole 35 and the unlocking hole 36 can both pass through the rod body 46 to realize the left-right movement of the locking tab 33, and when the second lock cylinder 32 drives the locking tab 33 to move to the rightmost end, the second program lock 3 is locked, the back door 6 is closed, and the key can be pulled out. When the rear door 6 is not closed, the second program lock 3 is in an unlocked state, the striking plate 33 moves leftwards, the locking rod 42 is located in the unlocking hole 36, when the support of the baffle 7 is lost at this time to reset the locking rod 42, the unlocking hole 36 just abuts against the rod cap 47, the locking hole 35 cannot pass through the rod cap 47, the position of the striking plate 33 is limited at this time, the second program lock 3 cannot be moved, and the key of the second program lock 3 cannot be pulled out, so that the first program lock 1 cannot be operated, and at this time, the operation of the grounding switch 2 cannot be performed.
The working process of the two-in-one program lock device of the grounding switch and the rear door is as follows:
when the grounding switch 2 is grounded and closed, the grounding operation shaft 21 rotates the cam block 22 to the position shown in fig. 1 and 2, that is, the flat portion 24 of the cam block 22 faces the first program lock 1, at this time, the key of the first program lock 1 can rotate clockwise to the first program lock 1 locking position, and when the key can be pulled out, the blocking piece 13 of the first program lock 1 blocks the grounding operation shaft 21, so that a person cannot touch the grounding operation shaft 21.
When the grounding switch 2 is grounded and disconnected, the cam block 22 is rotated to the position shown in fig. 3 and 4 by the grounding operation shaft 21, that is, the protruding part 23 of the cam block 22 abuts against the blocking piece 13, at this time, the key of the first program lock 1 cannot be rotated clockwise, and the key of the first program lock 1 cannot be pulled out.
As shown in fig. 5 and 6, the second program lock 3 is integrally installed inside the rear door 6, the rear door 6 is a revolving door, the left hinge rotates, and the baffle 7 is disposed on the right side of the base frame of the cabinet 5.
As shown in fig. 9 to 11, when the rear door 6 is not closed, the lock lever 42 is not in contact with the shutter 7, and at this time, the lever cap 47 of the lock lever 42 blocks the striking plate 33, the second cylinder 32 cannot be moved, the second program lock 3 key cannot be rotated clockwise, and the second program lock 3 key cannot be pulled out.
As shown in fig. 12 to 14, when the rear door 6 is closed, the lock lever 42 contacts the shutter 7, and at this time, the lock lever 42 is lifted up to position the lever body 46 in the lock hole 34 of the striking plate 33, the striking plate 33 can move to the right, the program lock key can rotate clockwise, and the program lock key can be pulled out.
The device is provided with the second program lock 3 on the rear door 6, and the rear door locking mechanism 4 is used for realizing that the first program lock 1 can be unlocked only after the rear door 6 is closed and the key can be pulled out, and then the grounding switch 2 is operated. When the disconnecting link of the grounding switch 2 is switched on, the rear door 6 can be unlocked and opened, and when the rear door 6 is not closed, the grounding switch 2 can not be switched off. And the program lock adopts a conventional standard lock, so that the processing and the installation are convenient, and the cost is low.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (8)
1. The utility model provides a two unification program lock devices of earthing switch and back door, its characterized in that includes earthing switch, back door locking mechanism, first program lock, second program lock share same key, first program lock sets up in earthing switch department and mutual interlocking, back door locking mechanism and second program lock are all installed on the back door of the cabinet body, back door locking mechanism and second program lock mutual interlocking, the first program lock of blocking is closed when the earthing switch separating brake, and the back door locking mechanism blocks the second program lock and close when the back door is unoccluded the key of first program lock and second program lock can't pull out under the unoccluded state.
2. The two-in-one program lock device for the grounding switch and the rear door according to claim 1, wherein the first program lock comprises a first key hole, a first lock cylinder and a baffle plate, the grounding switch is provided with a grounding operation shaft, the key is connected with the first key hole, the baffle plate is connected with the first lock cylinder, and the first lock cylinder drives the baffle plate to move and be blocked on the grounding operation shaft when the first program lock is unlocked through the key during closing of the grounding switch.
3. The two-in-one program lock device for the grounding switch and the rear door according to claim 2, wherein the grounding operation shaft is provided with a cam block, the cam block is of an eccentric wheel structure taking the grounding operation shaft as a circle center, the cam block is provided with a protruding part and a flat part, and the cam block is rotated until the protruding part faces the baffle plate and is blocked on a moving track of the baffle plate when the grounding switch is disconnected; and when the grounding switch is switched on, the cam block is rotated until the flat part faces the blocking piece and avoids the moving track of the blocking piece.
4. The two-in-one program lock device for a ground switch and a rear door according to claim 3, wherein the blocking piece is provided with a moving part for contacting with the cam block and a blocking part for blocking the ground operation shaft, the moving part and the blocking part are in bending connection, the moving part is fixedly connected with the first lock cylinder, and the blocking part is spatially staggered with the ground operation shaft.
5. The two-in-one program lock device for a ground switch and a rear door according to claim 1, wherein the rear door locking mechanism comprises a bracket and a locking rod, a baffle is arranged on the cabinet body, the bracket is mounted on the rear door, the locking rod is elastically connected with the bracket, the bottom of the locking rod penetrates through the bracket, and the bottom of the locking rod is in contact with the baffle in a closed state of the rear door.
6. The two-in-one program lock device for a ground switch and a rear door according to claim 5, wherein the rear door locking mechanism further comprises a spring and a pin rod, the locking rod is provided with a pin hole, the pin rod is inserted in the pin hole, the top of the spring is in contact with the bracket, and the bottom of the spring is in contact with the pin rod.
7. The two-in-one program lock device for a ground switch and a rear door according to claim 5, wherein the second program lock comprises a second keyhole, a second lock cylinder and a striking plate, the key is connected with the second keyhole, the striking plate is connected with the second lock cylinder, the striking plate is provided with a lock hole, and the lock hole is sleeved on the lock rod.
8. The two-in-one program lock device for a ground switch and a rear door according to claim 7, wherein the lock hole comprises a lock Kong Hejie lock hole, the lock Kong Hejie lock hole is communicated, the lock rod comprises a rod body and a rod cap, the rod cap is connected to the top of the rod body, the aperture of the lock hole is larger than the diameter of the rod body and smaller than the diameter of the rod cap, and the aperture of the unlock hole is larger than the diameter of the rod cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322453393.9U CN220873471U (en) | 2023-09-08 | 2023-09-08 | Two-in-one program lock device for grounding switch and rear door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322453393.9U CN220873471U (en) | 2023-09-08 | 2023-09-08 | Two-in-one program lock device for grounding switch and rear door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220873471U true CN220873471U (en) | 2024-04-30 |
Family
ID=90810189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322453393.9U Active CN220873471U (en) | 2023-09-08 | 2023-09-08 | Two-in-one program lock device for grounding switch and rear door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220873471U (en) |
-
2023
- 2023-09-08 CN CN202322453393.9U patent/CN220873471U/en active Active
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