CN212304448U - High low-voltage cabinet hand power for drawer switch interlocking device of security - Google Patents
High low-voltage cabinet hand power for drawer switch interlocking device of security Download PDFInfo
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- CN212304448U CN212304448U CN202020506743.7U CN202020506743U CN212304448U CN 212304448 U CN212304448 U CN 212304448U CN 202020506743 U CN202020506743 U CN 202020506743U CN 212304448 U CN212304448 U CN 212304448U
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Abstract
The utility model relates to a high low-voltage cabinet hand power is switch interlocking device for drawer of security, this high low-voltage cabinet hand power is switch interlocking device for drawer of security, including bottom plate, interlocking device, switching mechanism and indicating mechanism, interlocking device includes support frame, turning arm, interlocking lever and uide bushing, wherein support frame and uide bushing are fixed to be located on the bottom plate, the support frame rotates with the turning arm to be connected, be equipped with the cylinder portion on the turning arm, be equipped with on the support frame with the cylinder portion clearance fit's through-hole, be equipped with square through-hole on the turning arm, the upper end of the free end of turning arm through round pin hub connection interlocking lever, the lower extreme of interlocking lever passes behind uide bushing and the bottom plate and extends to the below of bottom plate, be equipped with the lockhole with interlocking lever clearance fit; the utility model discloses a drawer needs the push jack to unblock, and the push jack needs the action bars to pass through interlocking device could the unblock again, and double locking avoids the unblock by force of drawer under the combined floodgate state, and the security is high, is worth wideling popularize.
Description
Technical Field
The utility model belongs to the technical field of the low-voltage switchgear, concretely relates to high low-voltage switchgear hand power for drawer switch interlocking device of security.
Background
In modern power distribution network and engineering construction, the draw-out type low-voltage power distribution cabinet is widely applied to power distribution systems of application occasions such as power plants, substations, factories and mining enterprises and high-rise buildings. The power distribution cabinet plays an important role in power distribution, motor control and electric energy conversion, distribution and control of lighting lamp power distribution equipment. The circuit breaker in the prior drawer type switch cabinet drawer is generally operated by one hand, when the circuit breaker with electric operation is installed, the mechanical interlocking mechanism does not have the mechanical and electric interlocking operation of opening and closing the circuit breaker, and at the moment, after the drawer is inserted, the circuit breaker can be closed under the condition that the drawer is not locked; and the circuit breaker closes a floodgate after, the drawer also can be taken out, so just probably the drawer is taken out by force when the circuit breaker supplies power for consumer, and at this moment the circuit breaker does not have the separating brake, and the return circuit is through once connector disconnection during the drawer power supply, and the connector does not possess the protection of breaking a circuit, and this is very dangerous, can cause distribution equipment's damage, can shock to operating personnel when the power consumption is big, causes the casualty accident, does not accord with the relevant electric operating rules of country.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a double locking just lies in providing in order to solve above-mentioned problem, avoids the high low-voltage cabinet hand power for drawer interlocking device of security of drawer unblock under the combined floodgate state.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the utility model provides a high low-voltage cabinet hand power for drawer switch interlocking device of security, includes bottom plate, interlocking device, switching mechanism and indicating mechanism, interlocking device includes support frame, turning arm, interlocking lever and uide bushing, wherein support frame and uide bushing are fixed to be located on the bottom plate, the support frame rotates with the turning arm to be connected, be equipped with the cylinder portion on the turning arm, be equipped with on the support frame with cylinder portion clearance fit's through-hole, be equipped with square through hole on the turning arm, the upper end of pin hub connection interlocking lever is passed to the free end of turning arm, the lower extreme of interlocking lever extends to the below of bottom plate after passing uide bushing and bottom plate, be equipped with on uide bushing and the bottom plate with interlocking lever clearance fit. The interlocking mechanism is matched with an operating rod of the operating mechanism, the operating rod is provided with a square part matched with the connecting lever, the operating rod penetrates through a square through hole of the connecting lever and can transmit torque to the connecting lever, the operating rod rotates to drive the connecting lever to rotate, so that the linkage rod is driven to move up and down along the guide sleeve through linkage, and the lower end of the linkage rod extends out of or retracts into the bottom plate.
The switch mechanism comprises a push sheet, a socket, a lock tongue, a lock pin, a guide seat, a switch spring, a lock sheet, a first guide column, a second guide column and a third guide column, the push sheet is perpendicular to the support frame and penetrates through the support frame and the socket, a through hole in clearance fit with the push sheet is formed in the socket and the support frame, the lock tongue is arranged on one side of the push sheet, the lock tongue is arranged on the guide seat, the lock column is arranged at the upper end of the lock tongue and penetrates through the guide seat, a through hole in clearance fit with the lock column is formed in the guide seat, the switch spring is sleeved on the lock column and is arranged between the guide seat and the lock tongue, the lock pin is arranged on one side, close to the push sheet, a vertically-arranged strip-shaped hole in clearance fit with the lock pin is formed in the guide seat, the lock pin is inserted. The push piece slides along the support frame and the guide seat, the push piece is inwards pushed to gradually push the lock pin to slide along the guide seat through the inclined plane of the push piece, then the lock tongue is driven to rise, and the switch spring can drive the lock tongue to reset after the push piece is loosened.
Still be equipped with the locking hole on the push pedal, one side that the locking hole is close to the interlocking lever is equipped with the lock piece, one side that the lock piece is close to the push pedal is equipped with protruding with locking hole complex, the lock piece is located between interlocking lever and the support frame, the interlocking lever passes through first guide post and third guide post connection lock piece, the lock piece passes through the second guide post and is connected with the support frame, be equipped with on the support frame with first guide post and third guide post clearance fit's horizontal guide way, be equipped with on the lock piece with the vertical guide way of second guide post clearance fit, the lateral buckling of push pedal is kept away from to the lower part of vertical guide way, first guide post and third guide post fixed connection lock piece, second guide post fixed connection interlocking lever. The first guide post and the second guide post are matched with the horizontal guide groove to guide the locking piece in the horizontal direction, the second guide post is matched with the vertical guide groove to guide the locking piece in the vertical direction, and the vertical guide groove is bent towards one side far away from the push piece, so that when the interlocking rod moves downwards, the second guide post is matched with the vertical guide groove to push the locking piece to move towards one side close to the push piece so that the protrusion of the locking piece is inserted into the locking hole in the push piece to lock the push piece; when the brake is switched off, the operating rod rotates to the brake-off position, the interlocking rod is driven to move upwards, the locking piece is driven to be far away from the push piece, the locking of the push piece is released, and the push piece can move freely.
The indicating mechanism comprises a mechanism positioning block, a positioning column, an indicating blocking pin, an indicating arm, an indicating rotating shaft, an indicating torsion spring and an indicator, the mechanism positioning block is arranged below the bottom plate, one side, away from the push sheet, of the mechanism positioning block is provided with the indicating blocking pin, the bottom plate is provided with an arc-shaped groove matched with the indicating blocking pin, the indicating blocking pin penetrates through the arc-shaped groove to extend to the bottom plate, one end of the indicating arm is connected to the upper end of the indicating blocking pin, the indicator is connected to the other end of the indicating arm, the middle of the indicating arm is connected with the bottom plate through the indicating rotating shaft, the indicating rotating shaft is sleeved with the indicating torsion spring, one end of the indicating.
The mechanism positioning block is provided with an inclined plane matched with the indicating baffle pin, the middle part of the mechanism positioning block is provided with a strip-shaped opening, one side of the strip-shaped opening, which is close to the indicating baffle pin, is provided with an extension groove, a positioning column is arranged in the strip-shaped opening, the positioning column is fixedly connected with the bottom plate, and the strip-shaped opening and the extension groove are positioned below the lock hole of the bottom plate; the support frame is provided with an interlocking rod guide groove matched with the second guide post, the second guide post is positioned in the middle of the interlocking rod and inserted into the interlocking rod guide groove, and the lower end of the interlocking rod guide groove extends to one side close to the push plate. When the interlocking lever is driven by the connecting lever to move downwards, the second guide post is matched with the guide of the interlocking lever guide groove to generate lower end swing, so that a mechanism positioning block below is driven to rotate around the positioning post, the indicating blocking pin is pushed to move along the arc-shaped groove, the indicating arm is driven to rotate around the indicating rotating shaft, and the indicator is driven to indicate the opening and closing states; on the contrary, when the interlocking rod is driven by the crank arm to move upwards for resetting, the lower end of the interlocking rod swings reversely, the indicating torsion spring drives the indicating arm and the indicating baffle pin to reset, and the mechanism positioning block also resets under the combined action of the indicating baffle pin and the interlocking rod.
As a further optimization scheme of the utility model, be equipped with the fluting that corresponds with the horizontal guide way of lock block piece on the support frame.
As the utility model discloses a further optimization scheme, the indicator includes the L template, and the lower extreme fixed connection of L template instructs the arm, upper end fixed connection arc piece.
As a further optimization scheme of the utility model, the one end that instructs the arm to connect the instruction shelves round pin still is equipped with the dog, and one side of dog is equipped with micro-gap switch.
As a further optimization scheme of the utility model, the both ends of first guide post, second guide post, third guide post are equipped with stop gear.
The beneficial effects of the utility model reside in that:
1) the utility model discloses a drawer needs the push jack to unblock, and the push jack needs the action bars again to pass through interlocking device could the unblock, and double locking avoids the unblock by force of drawer under the combined floodgate state, and the security is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention in the first embodiment;
fig. 2 is a plan view of the present invention according to the first embodiment;
fig. 3 is a front view of the present invention according to the first embodiment;
fig. 4 is a schematic bottom structure of the present invention according to the first embodiment;
fig. 5 is a schematic structural view of a mechanism positioning plate according to the first embodiment of the present invention.
In the figure: the device comprises a bottom plate 1, a support frame 2, a crank arm 3, an interlocking rod 4, a guide sleeve 5, a push piece 6, a socket 7, a bolt 8, a lock pin 9, a guide seat 10, a switch spring 11, a lock piece 12, a first guide column 13, a second guide column 14, a third guide column 15, a horizontal guide groove 16, a vertical guide groove 17, a mechanism positioning block 18, a positioning column 19, an indicating stop pin 20, an indicating arm 21, an indicating rotating shaft 22, an indicating torsion spring 23, an indicator 24, a strip-shaped opening 25, an extending groove 26, an interlocking rod guide groove 27 and a microswitch 28.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; in the description of the present invention, "a plurality" or "a plurality" means two or more unless otherwise specified.
Example one
As shown in fig. 1-5, a high-safety switch interlocking mechanism for a low-voltage cabinet hand-pulling drawer comprises a base plate 1, an interlocking mechanism, a switch mechanism and an indicating mechanism, wherein the interlocking mechanism comprises a support frame 2, a connecting lever 3, an interlocking rod 4 and a guide sleeve 5, the support frame 2 and the guide sleeve 5 are fixedly arranged on the base plate 1, the support frame 2 is rotatably connected with the connecting lever 3, a cylindrical portion is arranged on the connecting lever 3, a through hole in clearance fit with the cylindrical portion is arranged on the support frame 2, a square through hole is arranged on the connecting lever 3, the free end of the connecting lever 3 is connected with the upper end of the interlocking rod 4 through a pin shaft, the lower end of the interlocking rod 4 extends to the lower portion of the base plate 1 after penetrating through the guide sleeve 5 and the base plate 1, and locking holes in clearance fit with the interlocking. The interlocking mechanism is matched with an operating rod of the operating mechanism, the operating rod is provided with a square part matched with the connecting lever 3, the operating rod penetrates through a square through hole of the connecting lever 3 and can transmit torque to the connecting lever 3, the operating rod rotates to drive the connecting lever 3 to rotate, so that the linkage rod is driven to move up and down along the guide sleeve 5 through linkage, and the lower end of the linkage rod extends out of or retracts into the bottom plate 1.
The switch mechanism comprises a push sheet 6, a socket 7, a lock tongue 8, a lock pin 9, a guide seat 10, a switch spring 11, a lock sheet 12, a first guide column 13, a second guide column 14 and a third guide column 15, the push sheet 6 is arranged perpendicular to the support frame 2, and run through support frame 2 and socket 7, be equipped with on socket 7 and the support frame 2 with the through-hole of 6 clearance fit of push jack, one side of push jack 6 is equipped with spring bolt 8, spring bolt 8 is located on guide holder 10, the upper end of spring bolt 8 is equipped with the lock post, the lock post runs through guide holder 10, be equipped with on the guide holder 10 with lock post clearance fit's through-hole, the cover has switch spring 11 on the lock post, switch spring 11 locates between guide holder 10 and the spring bolt 8, one side that spring bolt 8 is close to push jack 6 is equipped with lockpin 9, be equipped with vertical setting on the guide holder 10 with lockpin 9 clearance fit's bar hole, lockpin 9 inserts in this bar hole, the top of push jack 6 be equipped with one with lock. The push sheet 6 slides along the support frame 2 and the guide seat 10, the push sheet 6 is pushed inwards to gradually push the lock pin 9 to slide along the guide seat 10 through the inclined plane of the push sheet, then the lock tongue 8 is driven to ascend, and the switch spring 11 can drive the lock tongue 8 to reset after the push sheet 6 is loosened.
Still be equipped with the locking hole on the push jack 6, one side that the locking hole is close to the interlocking lever is equipped with locking piece 12, one side that locking piece 12 is close to push jack 6 is equipped with the arch with locking hole complex, locking piece 12 is located between interlocking lever and the support frame 2, the interlocking lever is through first guide post 13 and third guide post 15 connection locking piece 12, locking piece 12 is connected with support frame 2 through second guide post 14, be equipped with on the support frame 2 with first guide post 13 and third guide post 15 clearance fit's horizontal guide way 16, be equipped with on the locking piece 12 with the vertical guide way 17 of 14 clearance fit of second guide post, the lateral buckling of the lower part of vertical guide way 17 to keeping away from push jack 6, first guide post 13 and third guide post 15 fixed connection locking piece 12, second guide post 14 fixed connection locking lever. The first guide post 13 and the second guide post 14 are matched with the horizontal guide groove 16 to guide the locking piece 12 in the horizontal direction, the second guide post 14 is matched with the vertical guide groove 17 to guide the locking piece 12 in the vertical direction, and the vertical guide groove 17 is bent towards one side far away from the push piece 6, so that when the interlocking rod moves downwards, the second guide post 14 is matched with the vertical guide groove 17 to push the locking piece 12 to move towards one side position close to the push piece 6 so that the protrusion of the locking piece is inserted into the locking hole in the push piece 6 to lock the push piece 6; during brake opening, the operating rod rotates to the brake opening position, the interlocking rod is driven to move upwards, the locking piece 12 is driven to be far away from the push piece 6, locking of the push piece 6 is released, and the push piece 6 can move freely.
The indicating mechanism comprises a mechanism positioning block 18, a positioning column 19, an indicating baffle pin 20, an indicating arm 21, an indicating rotating shaft 22, an indicating torsion spring 23 and an indicator 24, the mechanism positioning block 18 is arranged below the bottom plate 1, one side, far away from the push sheet 6, of the mechanism positioning block 18 is provided with the indicating baffle pin 20, the bottom plate 1 is provided with an arc-shaped groove matched with the indicating baffle pin 20, the indicating baffle pin 20 penetrates through the arc-shaped groove to extend to the lower part of the bottom plate 1, the upper end of the indicating baffle pin 20 is connected with one end of the indicating arm 21, the other end of the indicating arm 21 is connected with the indicator 24, the middle part of the indicating arm 21 is connected with the bottom plate 1 through the indicating rotating shaft 22, the indicating torsion spring 23 is sleeved on the indicating rotating shaft 22, one end.
An inclined plane matched with the indicating stop pin 20 is arranged on the mechanism positioning block 18, a strip-shaped opening 25 is arranged in the middle of the mechanism positioning block 18, an extension groove 26 is arranged on one side, close to the indicating stop pin 20, of the strip-shaped opening 25, a positioning column 19 is arranged in the strip-shaped opening 25, the positioning column 19 is fixedly connected with the bottom plate 1, and the strip-shaped opening 25 and the extension groove 26 are located below a lock hole of the bottom plate 1; the support frame 2 is provided with an interlocking rod guide groove 27 matched with the second guide post 14, the second guide post 14 is positioned in the middle of the interlocking rod and inserted into the interlocking rod guide groove 27, and the lower end of the interlocking rod guide groove 27 extends towards one side close to the push plate. When the interlocking lever is driven by the crank arm 3 to move downwards, the lower end of the interlocking lever swings due to the fact that the second guide post 14 is matched with the guide of the interlocking lever guide groove 27, and then the mechanism positioning block 18 below is driven to rotate around the positioning post 19, the indicating blocking pin 20 is pushed to move along the arc-shaped groove, the indicating arm 21 is driven to rotate around the indicating rotating shaft 22, and the indicator 24 is driven to indicate the opening and closing state; on the contrary, when the interlocking lever is driven by the crank arm 3 to move upwards for resetting, the lower end of the interlocking lever swings reversely, the indicating torsion spring 23 drives the indicating arm 21 and the indicating stop pin 20 to reset, and the mechanism positioning block 18 also resets under the combined action of the indicating stop pin 20 and the interlocking lever.
The support frame 2 is provided with a groove corresponding to the horizontal guide groove 16 of the locking piece 12.
Above-mentioned, indicator 24 includes the L template, and the lower extreme fixed connection of L template instructs arm 21, and upper end fixed connection arc piece is equipped with the pilot sign on the arc piece for instruct divide-shut brake state. The drawer panel is provided with an indicating window corresponding to the arc-shaped sheet.
Above-mentioned, the one end that instruction arm 21 connects instruction shelves round pin 20 still is equipped with the dog, and one side of dog is equipped with micro-gap switch 28, can trigger micro-gap switch 28 when instruction arm 21 rotates, and micro-gap switch 28 can connect the pilot lamp, also can connect operating device's circuit board. The same principle as the microswitch 28 of the prior art drawer switch interlock mechanism.
As described above, the bottom surface of the mechanism positioning block 18 is restricted by the drawer plate and does not separate from the positioning column 19 and the base plate 1.
The first guide post 13, the second guide post 14, and the third guide post 15 are provided with a stopper mechanism at both ends. Preferably round caps with a diameter larger than themselves so that they do not leave the respective guide grooves.
The utility model discloses a structural feature and theory of operation: the interlocking mechanism is interlocked with an operating rod of the operating mechanism, the opening and closing actions of the operating mechanism can be conducted to the drawer through the interlocking mechanism, when the operating rod is in a closing state, the push piece 6 is locked by the locking piece 12, and meanwhile, the indicating mechanism is positioned to a closing position by the mechanism positioning block 18;
when the operating rod is opened, the locking piece 12 is driven to unlock, the pushing piece 6 pushes inwards to drive the bolt 8 to ascend, the drawer is unlocked, and meanwhile, the indicating mechanism is positioned to the opening position by the mechanism positioning block 18.
The drawer needs the push piece 6 to unlock, the push piece 6 needs the operating rod to unlock through the interlocking mechanism, double locking is achieved, and forced unlocking of the drawer in a closing state is avoided.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (5)
1. The utility model provides a high low-voltage cabinet hand power for drawer switch interlocking device which characterized in that of security: the interlocking mechanism comprises a support frame, a crank arm, an interlocking rod and a guide sleeve, wherein the support frame and the guide sleeve are fixedly arranged on the base plate, the support frame is rotatably connected with the crank arm, the crank arm is provided with a cylindrical part, the support frame is provided with a through hole in clearance fit with the cylindrical part, the crank arm is provided with a square through hole, the free end of the crank arm is connected with the upper end of the interlocking rod through a pin shaft, the lower end of the interlocking rod penetrates through the guide sleeve and the base plate and then extends to the lower part of the base plate, and the guide sleeve and the base plate are provided with lock holes in clearance fit with the interlocking rod;
the switch mechanism comprises a push sheet, a socket, a lock tongue, a lock pin, a guide seat, a switch spring, a lock tongue, a first guide post, a second guide post and a third guide post, wherein the push sheet is arranged perpendicular to the support frame and penetrates through the support frame and the socket;
the push piece is also provided with a locking hole, one side of the locking hole, which is close to the interlocking rod, is provided with a locking piece, one side of the locking piece, which is close to the push piece, is provided with a bulge matched with the locking hole, the locking piece is arranged between the interlocking rod and the support frame, the interlocking rod is connected with the locking piece through a first guide post and a third guide post, the locking piece is connected with the support frame through a second guide post, the support frame is provided with a horizontal guide groove in clearance fit with the first guide post and the third guide post, the locking piece is provided with a vertical guide groove in clearance fit with the second guide post, the lower part of the vertical guide groove is bent towards one side far away from the push piece, the first guide post and the third guide post are fixedly connected with the locking piece, and the second guide post is fixedly connected with the;
the indicating mechanism comprises a mechanism positioning block, a positioning column, an indicating baffle pin, an indicating arm, an indicating rotating shaft, an indicating torsion spring and an indicator, the mechanism positioning block is arranged below the bottom plate, the indicating baffle pin is arranged on one side, away from the push sheet, of the mechanism positioning block, an arc-shaped groove matched with the indicating baffle pin is formed in the bottom plate, the indicating baffle pin penetrates through the arc-shaped groove and extends to the lower part of the bottom plate, the upper end of the indicating baffle pin is connected with one end of the indicating arm, the other end of the indicating arm is connected with the indicator, the middle part of the indicating arm is connected with the bottom plate through the indicating rotating shaft, the indicating rotating shaft is sleeved with the indicating torsion spring;
the mechanism positioning block is provided with an inclined plane matched with the indicating baffle pin, the middle part of the mechanism positioning block is provided with a strip-shaped opening, one side of the strip-shaped opening, which is close to the indicating baffle pin, is provided with an extension groove, a positioning column is arranged in the strip-shaped opening, the positioning column is fixedly connected with the bottom plate, and the strip-shaped opening and the extension groove are positioned below the lock hole of the bottom plate; the support frame is provided with an interlocking rod guide groove matched with the second guide post, the second guide post is positioned in the middle of the interlocking rod and inserted into the interlocking rod guide groove, and the lower end of the interlocking rod guide groove extends to one side close to the push plate.
2. The switch interlocking mechanism for the low-voltage cabinet hand-pulling drawer with high safety as claimed in claim 1, is characterized in that: and the support frame is provided with a groove corresponding to the horizontal guide groove of the locking sheet.
3. The switch interlocking mechanism for the low-voltage cabinet hand-pulling drawer with high safety as claimed in claim 1, is characterized in that: the indicator comprises an L-shaped plate, the lower end of the L-shaped plate is fixedly connected with an indicating arm, and the upper end of the L-shaped plate is fixedly connected with an arc-shaped sheet.
4. The switch interlocking mechanism for the low-voltage cabinet hand-pulling drawer with high safety as claimed in claim 1, is characterized in that: one end of the indicating arm, which is connected with the indicating stop pin, is also provided with a stop block, and one side of the stop block is provided with a microswitch.
5. The switch interlocking mechanism for the low-voltage cabinet hand-pulling drawer with high safety as claimed in claim 1, is characterized in that: and limiting mechanisms are arranged at two ends of the first guide column, the second guide column and the third guide column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020506743.7U CN212304448U (en) | 2020-04-08 | 2020-04-08 | High low-voltage cabinet hand power for drawer switch interlocking device of security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020506743.7U CN212304448U (en) | 2020-04-08 | 2020-04-08 | High low-voltage cabinet hand power for drawer switch interlocking device of security |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212304448U true CN212304448U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020506743.7U Expired - Fee Related CN212304448U (en) | 2020-04-08 | 2020-04-08 | High low-voltage cabinet hand power for drawer switch interlocking device of security |
Country Status (1)
| Country | Link |
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| CN (1) | CN212304448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122931A (en) * | 2021-11-25 | 2022-03-01 | 山东舜凯电气设备有限公司 | Safety control device for safety test of electrical switch cabinet |
-
2020
- 2020-04-08 CN CN202020506743.7U patent/CN212304448U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122931A (en) * | 2021-11-25 | 2022-03-01 | 山东舜凯电气设备有限公司 | Safety control device for safety test of electrical switch cabinet |
| CN114122931B (en) * | 2021-11-25 | 2024-03-12 | 山东舜凯电气设备有限公司 | Safety control device for safety test of electrical switch cabinet |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 Termination date: 20210408 |
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| CF01 | Termination of patent right due to non-payment of annual fee |