CN113707474A - Electric misoperation prevention device - Google Patents
Electric misoperation prevention device Download PDFInfo
- Publication number
- CN113707474A CN113707474A CN202111263519.5A CN202111263519A CN113707474A CN 113707474 A CN113707474 A CN 113707474A CN 202111263519 A CN202111263519 A CN 202111263519A CN 113707474 A CN113707474 A CN 113707474A
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- Prior art keywords
- connecting plate
- plate
- shaped electric
- guide
- guide plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention discloses an electric anti-misoperation device, which belongs to the field of electric switches and comprises a protective shell, wherein one end inside the protective shell is provided with a C-shaped electric connecting plate, one end of the C-shaped electric connecting plate is electrically connected with an electric connecting main end head extending to the outer side of the protective shell, one side inside the protective shell is sequentially provided with a second rectangular electric connecting plate and a second L-shaped electric connecting plate from one end close to the C-shaped electric connecting plate to one end far away from the C-shaped electric connecting plate, the electric anti-misoperation device can complete the closing or opening of a first circuit or a second circuit according to the requirement of a user, switches the circuits and can only realize the closing of one circuit at the same time, so that the short circuit phenomenon caused by the simultaneous starting of the two circuits due to misoperation is avoided, and the starting of the circuits due to faults is avoided by arranging two conductive connecting plates on each circuit, so that the safety of the device is improved.
Description
Technical Field
The invention relates to the field of electric switches, in particular to an electric misoperation prevention device.
Background
In a high-voltage power transmission and transformation system, a high-voltage switch is one of important equipment in the system and has multiple functions of closing, cutting off a high-voltage line and protecting the safe operation of the line, an operating mechanism is a power source of the high-voltage switch and is a heart of the high-voltage switch, the operating mechanism is used for controlling the high-voltage switch to perform opening and closing actions, and the operation can be reliably stopped after the action is in place, which is a basic requirement on the operating mechanism;
however, the existing operating mechanism cannot effectively avoid the short circuit phenomenon caused by the simultaneous starting of two circuits due to misoperation, so that the safety of the device is poor.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide an electric misoperation prevention device, which can complete the closing or opening of a first circuit or a second circuit according to the requirement of a user, switches the circuits, avoids the short circuit phenomenon caused by starting the two circuits due to misoperation, and improves the safety of the device by arranging two conductive connecting plates on each circuit to avoid the starting of the circuits due to faults.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An electric misoperation prevention device comprises a protective shell, wherein a C-shaped electric connection plate is arranged at one end inside the protective shell, one end of the C-shaped electric connection plate is electrically connected with an electric connection main terminal extending to the outer side of the protective shell, a second rectangular electric connection plate and a second L-shaped electric connection plate are sequentially arranged on one side inside the protective shell from one end close to the C-shaped electric connection plate to one end far away from the C-shaped electric connection plate, one end of the second L-shaped electric connection plate far away from the C-shaped electric connection plate is electrically connected with a second electric connection branch terminal extending to the outer side of the protective shell, and the C-shaped electric connection plate, the second rectangular electric connection plate and the second L-shaped electric connection plate form a second circuit;
a first rectangular electric connecting plate and a first L-shaped electric connecting plate are sequentially arranged on the other side in the protective shell from one end close to the C-shaped electric connecting plate to one end far away from the C-shaped electric connecting plate, one end, far away from the C-shaped electric connecting plate, of the first L-shaped electric connecting plate is electrically connected with a first electric branch end extending to the outer side of the protective shell, and the C-shaped electric connecting plate, the first rectangular electric connecting plate and the first L-shaped electric connecting plate form a first circuit;
the utility model discloses a safety protection device, including protective housing, regulating assembly, protective housing's inside is equipped with four at least groups conductive connection boards, protective housing's inside is equipped with rotating part, protective housing's inside still is provided with drive assembly, drive assembly is used for driving rotating part and rotates, wherein, protective housing's inside still is equipped with adjusting part, rotating part rotates, makes adjusting part extrusion conductive connection board be close to first circuit or second circuit.
Further, the rotatable parts is including setting up the rodent wheel at the intermediate position of protecting sheathing, just the regulating subassembly is located the both ends of meshing tooth, the inside of protecting sheathing and the equal sliding connection in both sides that is located the meshing gear have a rodent gib block, just rodent gib block and rodent wheel meshing are connected, drive two rodent gib blocks and remove along opposite direction when the rodent wheel rotates.
Furthermore, the inside of protective housing still is provided with four elastic component, elastic component is including a plurality of connecting plate gag levers of fixed connection at the protective housing inner wall, electrically conductive connecting plate sliding connection is in the outside of a plurality of connecting plate gag levers, the outside of connecting plate gag lever levers just is located and has cup jointed first return spring between electrically conductive connecting plate and the inner wall of protective housing.
Furthermore, the outside of connecting plate gag lever post just is located and still cup joints the insulating piece between electrically conductive connecting plate and the first recoil spring.
Further, transmission assembly is including the worm wheel of fixed connection in the gear engagement upper end, the inside of protecting sheathing and the one end that is located the worm wheel rotate and are connected with the worm, just worm wheel and worm meshing are connected, the one end of worm wheel extends to the outside of protecting sheathing.
Furthermore, the adjusting assembly comprises two groups of guide plate fixing frames arranged inside the protective shell, wherein a first guide plate is arranged at the middle position of one group of guide plate fixing frames, two first guide cavities respectively matched with the two rodent guide bars are formed in one end, close to the rodent guide bars, of the first guide plate, a second guide plate is arranged at the middle position of the other group of guide plate fixing frames, and two second guide cavities respectively matched with the two rodent guide bars are formed in one end, close to the rodent guide bars, of the second guide plate;
the two sides of the first guide plate and the second guide plate are fixedly connected with two connecting plate support rods, the connecting plate support rods penetrate through the guide plate fixing frame, and second return springs are sleeved on the outer side of the guide plate fixing frame and located between the first guide plate and the guide plate fixing frame and between the second guide plate and the guide plate fixing frame.
Furthermore, the guide plate fixing frame and the connecting plate supporting rod are made of ceramics.
Furthermore, the upper end of the protective shell is connected with a sealing cover plate through a screw.
Furthermore, the connecting plate support rod is a round rod, and one end of the round rod, which is close to the conductive connecting plate, is in threaded connection with a limiting ball.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
this scheme can accomplish the closure or the open circuit of first circuit or second circuit according to user's demand through the cooperation of each accessory, switches the circuit, and only can realize the closure of a circuit simultaneously, has avoided starting the short circuit phenomenon that two circuits arouse simultaneously because of the malfunction to start because of the trouble through set up two electrically conductive connecting plates at every circuit, promoted the security of device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of a portion of the structure of the present invention;
FIG. 3 is a partial schematic view of the present invention;
FIG. 4 is a schematic view of the construction of the spring assembly of the present invention;
FIG. 5 is a schematic view of a portion of the adjustment assembly of the present invention;
FIG. 6 is a schematic view of the internal structure of the protective housing of the present invention;
FIG. 7 is a schematic view of a rodent guide strip of the present invention;
FIG. 8 is a schematic view of the configuration of a toothed wheel according to the present invention;
fig. 9 is a schematic view of the structure of a toothed wheel according to the present invention.
The reference numbers in the figures illustrate:
1. a protective housing; 2. sealing the cover plate; 3. a power connection main end; 4. a first power tapping head; 5. a second power tapping head; 6. a C-shaped electric connection plate; 7. a first rectangular power strip; 8. a second rectangular power strip; 9. a first L-shaped power connection plate; 10. a second L-shaped power connection plate; 11. a conductive connection plate; 12. connecting a plate limiting rod; 13. a first return spring; 14. a first guide plate; 15. a second guide plate; 16. a first guide chamber; 17. a second guide chamber; 18. a guide plate fixing frame; 19. a connecting plate stay bar; 20. a second return spring; 21. a rodent guide bar; 22. a toothed wheel; 23. a worm gear; 24. a worm; 25. a knob; 26. an insulating sheet; 27. a slide bar; 28. a guide rail; 29. rotating the ring; 30. an annular rail.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Referring to fig. 1-9, an electrical anti-malfunction device includes a protective housing 1, a C-shaped power connection plate 6 is disposed at one end inside the protective housing 1, one end of the C-shaped power connection plate 6 is electrically connected to a power connection main terminal 3 extending to the outside of the protective housing 1, a second rectangular power connection plate 8 and a second L-shaped power connection plate 10 are sequentially disposed at one end inside the protective housing 1 from the end close to the C-shaped power connection plate 6 to the end far away from the C-shaped power connection plate 6, one end of the second L-shaped power connection plate 10 far away from the C-shaped power connection plate 6 is electrically connected to a second power connection sub terminal 5 extending to the outside of the protective housing 1, a first rectangular power connection plate 7 and a first L-shaped power connection plate 9 are sequentially disposed at the other end inside the protective housing 1 from the end close to the C-shaped power connection plate 6 to the end far away from the C-shaped power connection plate 6, and one end of the first L-shaped power connection plate 9 far away from the C-shaped power connection plate 6 is electrically connected to a first power connection sub terminal 4 extending to the outside of the protective housing 1;
referring to fig. 1-3, in order to connect the C-shaped contact plate 6, the second rectangular contact plate 8, the second L-shaped contact plate 10, the C-shaped contact plate 6, the first rectangular contact plate 7, and the first L-shaped contact plate 9 in series, between the C-shaped contact plate 6 and the second rectangular contact plate 8, and between the second rectangular contact plate 8 and the second L-shaped contact plate 10, a group of conductive connecting plates 11 are arranged between the C-shaped power connection plate 6 and the first rectangular power connection plate 7 and between the first rectangular power connection plate 7 and the first L-shaped power connection plate 9, the C-shaped power connection plate 6, the second rectangular power connection plate 8 and the second L-shaped power connection plate 10 form a second circuit, the C-shaped power connection plate 6, the first rectangular power connection plate 7 and the first L-shaped power connection plate 9 form a first circuit, and four elastic components are arranged inside the protective shell 1 and used for driving the first power connection branch end 4 to be separated from the first circuit or the second circuit;
in order to ensure that the first circuit and the second circuit have good conductive performance and save manufacturing cost, the power connection main end 3, the first power connection sub end 4, the second power connection sub end 5, the C-shaped power connection plate 6, the first rectangular power connection plate 7, the second rectangular power connection plate 8, the first L-shaped power connection plate 9 and the second L-shaped power connection plate 10 are made of copper;
here, referring to fig. 2-4, the elastic component includes a plurality of connecting plate limiting rods 12 fixedly connected to the inner wall of the protective housing 1, the conductive connecting plate 11 is slidably connected to the outer sides of the connecting plate limiting rods 12, one end of the connecting plate limiting rod 12 away from the inner wall of the protective housing 1 is a circular plate for limiting the conductive connecting plate 11, and a first restoring spring 13 is sleeved between the conductive connecting plate 11 and the inner wall of the protective housing 1 at the outer side of the connecting plate limiting rod 12 for driving the conductive connecting plate 11 to move in a direction away from the circuit;
in order to isolate the current conduction between the conductive connecting plate 11 and the first return spring 13, an insulating sheet 26 is further sleeved outside the connecting plate limiting rod 12 and between the conductive connecting plate 11 and the first return spring 13, and the insulating sheet 26 can be made of plastics;
referring to fig. 1-3 and 6-8, a rotating part is arranged inside the protective housing 1, the rotating part includes a mesh wheel 22 arranged in the middle of the protective housing 1, mesh guide bars 21 are slidably connected inside the protective housing 1 and on both sides of the mesh wheel 22, the mesh guide bars 21 slide along the long side direction of the protective housing 1, the mesh guide bars 21 are engaged with the mesh wheel 22, and the mesh wheel 22 drives the two mesh guide bars 21 to move in opposite directions when rotating;
wherein, the middle position inside the protective shell 1 is fixedly connected with an annular rail 30, the upper end of the annular rail 30 is rotatably connected with a rotating ring 29, and the rodent wheel 22 is fixedly connected with the upper end of the rotating ring 29;
inside and the both sides that are located annular rail 30 of protective housing 1 all are provided with guided way 28, and the upper end sliding connection of guided way 28 has the slide bar 27, and rodent gib block 21 fixed connection is in the upper end of slide bar 27.
Referring to fig. 1-3, fig. 6 and fig. 9 again, in order to drive the meshing gear 22 to rotate, a transmission assembly is further disposed inside the protective housing 1, and the transmission assembly is used to drive the meshing gear 22 to rotate, wherein the transmission assembly includes a worm wheel 23 fixedly connected to the upper end of the meshing gear 22, one end of the worm wheel 23 inside the protective housing 1 is rotatably connected to a worm 24, the worm wheel 23 is meshed with the worm 24, and one end of the worm wheel 23 extends to the outside of the protective housing 1.
In order to more conveniently rotate the worm 24, a knob 25 is fixedly connected to one end of the worm wheel 23, which is located outside the protective housing 1, and when the protective housing is used, the knob 25 is rotated to drive the worm 24 to rotate, because the worm 24 is meshed with the worm wheel 23, and when the worm 24 rotates, the worm wheel 23 drives the meshing gear 22 to rotate together.
Referring to fig. 2-3 and 5, the adjusting components are disposed inside the protective housing 1 and at two ends of the gear 22, and when the gear 22 rotates, the adjusting components are driven to squeeze the two conductive connecting plates 11 at the same end inside the protective housing 1, so that the conductive connecting plates 11 move toward a direction close to the first circuit or the second circuit.
Here, disclose a specific structure of adjusting part, adjusting part is including setting up two sets of deflector mount 18 in the inside of protecting sheathing 1, the quantity of every group deflector mount 18 is two, wherein the intermediate position of a set of deflector mount 18 is provided with first deflector 14, first deflector 14 is close to the one end of rodent gib block 21 and has seted up two first guide chamber 16 that suit with two rodent gib blocks 21 respectively, the intermediate position of another group deflector mount 18 is provided with second deflector 15, the one end that second deflector 15 is close to rodent gib block 21 has seted up two second guide chamber 17 that suit with two rodent gib blocks 21 respectively.
Two connecting plate support rods 19 are fixedly connected to two sides of the first guide plate 14 and the second guide plate 15, the connecting plate support rods 19 penetrate through the guide plate fixing frame 18, the guide plate fixing frame 18 and the connecting plate support rods 19 are made of ceramic, and the second return springs 20 are sleeved outside the guide plate fixing frame 18 and located between the first guide plate 14 and the guide plate fixing frame 18 and between the second guide plate 15 and the guide plate fixing frame 18.
In order to limit the connecting plate support rod 19 and facilitate the installation and the disassembly of the connecting plate support rod 19, the connecting plate support rod 19 is a round rod, and one end of the round rod, which is close to the conductive connecting plate 11, is in threaded connection with a limiting round ball.
In order to protect each electrical component inside the protective casing 1 and increase the sealing performance of the protective casing 1, a sealing cover plate 2 is connected to the upper end of the protective casing 1 through a screw.
When in use: the rotation knob 25 drives the worm 24 to rotate, because the worm 24 is meshed with the worm wheel 23, the worm 24 drives the meshing gear 22 to rotate together through the worm wheel 23 when rotating, and the meshing gear wheel 22 drives the two meshing guide bars 21 to move in opposite directions when rotating until one ends of the two meshing guide bars 21 enter the interiors of the first guide cavity 16 and the second guide cavity 17 respectively.
When the two rodent guide bars 21 enter the first guide cavity 16 and the second guide cavity 17, the first guide plate 14 and the second guide plate 15 are extruded, the first guide plate 14 and the second guide plate 15 slide towards the same direction, the first guide plate 14 and the second guide plate 15 drive the connecting plate support rod 19 to move when sliding, the two conductive connecting plates 11 on the same side are extruded, the first guide plate 14 is attached to a first circuit or a second circuit, and the first circuit or the second circuit is closed;
when the device is not used, the knob 25 is rotated again to drive the rodent guide bars 21 to move, so that the two rodent guide bars 21 are separated from the first guide plate 14 and the second guide plate 15 respectively, at the moment, the two second return springs 20 positioned on two sides of the first guide plate 14 or the second guide plate 15 push the first guide plate 14 to reset the first guide plate 14, the connecting plate support rod 19 is separated from the conductive connecting plate 11, and after the connecting plate support rod 19 does not apply thrust to the conductive connecting plate 11 any more, the first return spring 13 pushes the conductive connecting plate 11 to separate the conductive connecting plate 11 from the circuit, so that the circuit is disconnected;
in summary, the invention can complete the closing or opening of the first circuit or the second circuit according to the requirement of the user through the matching of the accessories, switch the circuits, and can only realize the closing of one circuit at the same time, thereby avoiding the short circuit phenomenon caused by starting two circuits simultaneously due to misoperation, and avoiding the starting of the circuits due to faults by arranging two conductive connecting plates 11 on each circuit, thereby improving the safety of the device.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (9)
1. The utility model provides an electric prevent malfunction device, includes protective housing (1), its characterized in that: a C-shaped electric connection plate (6) is arranged at one end inside the protective shell (1), one end of the C-shaped electric connection plate (6) is electrically connected with an electric connection total end (3) extending to the outer side of the protective shell (1), a second rectangular electric connection plate (8) and a second L-shaped electric connection plate (10) are sequentially arranged on one side inside the protective shell (1) from one end close to the C-shaped electric connection plate (6) to one end far away from the C-shaped electric connection plate (6), one end, far away from the C-shaped electric connection plate (6), of the second L-shaped electric connection plate (10) is electrically connected with a second electric connection branch end (5) extending to the outer side of the protective shell (1), and the C-shaped electric connection plate (6), the second rectangular electric connection plate (8) and the second L-shaped electric connection plate (10) form a second circuit;
a first rectangular electric connecting plate (7) and a first L-shaped electric connecting plate (9) are sequentially arranged on the other side of the interior of the protective shell (1) from one end close to the C-shaped electric connecting plate (6) to one end far away from the C-shaped electric connecting plate (6), one end, far away from the C-shaped electric connecting plate (6), of the first L-shaped electric connecting plate (9) is electrically connected with a first electric connecting branch end (4) extending to the outer side of the protective shell (1), and the C-shaped electric connecting plate (6), the first rectangular electric connecting plate (7) and the first L-shaped electric connecting plate (9) form a first circuit;
the inside of protecting sheathing (1) is equipped with four at least groups conductive connection board (11), the inside of protecting sheathing (1) is equipped with rotating member, the inside of protecting sheathing (1) still is provided with drive assembly, drive assembly is used for driving rotating member and rotates, wherein, the inside of protecting sheathing (1) still is equipped with adjusting part, rotating member rotates, makes adjusting part extrusion conductive connection board (11) be close to first circuit or second circuit.
2. An electrical malfunction prevention device according to claim 1, characterized in that: the rotatable parts is including setting up at the meshing gear (22) of the intermediate position of protecting sheathing (1), just the adjusting part is located the both ends of meshing tooth (22), the inside of protecting sheathing (1) and the equal sliding connection in both sides that is located meshing gear (22) have a rodent gib block (21), just rodent gib block (21) and meshing gear (22) meshing connection, drive two rodent gib blocks (21) and remove along opposite direction when meshing gear (22) rotate.
3. An electrical malfunction prevention device according to claim 1, characterized in that: the inside of protecting sheathing (1) still is provided with four elastic component, elastic component is including a plurality of connecting plate gag lever posts (12) of fixed connection at protecting sheathing (1) inner wall, electrically conductive connecting plate (11) sliding connection is in the outside of a plurality of connecting plate gag lever posts (12), first resilience spring (13) have been cup jointed in the outside of connecting plate gag lever posts (12) and between being located the inner wall of electrically conductive connecting plate (11) and protecting sheathing (1).
4. An electrical malfunction prevention device according to claim 3, characterized in that: and an insulating sheet (26) is sleeved between the conductive connecting plate (11) and the first return spring (13) and outside the connecting plate limiting rod (12).
5. An electrical malfunction prevention device according to claim 1, characterized in that: the transmission assembly comprises a worm wheel (23) fixedly connected to the upper end of a meshing gear (22), a worm (24) is rotatably connected to the inner portion of the protective shell (1) and located at one end of the worm wheel (23), the worm wheel (23) is meshed with the worm (24) to be connected, and one end of the worm wheel (23) extends to the outer side of the protective shell (1).
6. An electrical malfunction prevention device according to claim 1, characterized in that: the adjusting assembly comprises two groups of guide plate fixing frames (18) arranged inside the protective shell (1), wherein a first guide plate (14) is arranged in the middle of one group of guide plate fixing frames (18), one end, close to the rodent guide strips (21), of the first guide plate (14) is provided with two first guide cavities (16) which are respectively matched with the two rodent guide strips (21), the middle of the other group of guide plate fixing frames (18) is provided with a second guide plate (15), one end, close to the rodent guide strips (21), of the second guide plate (15) is provided with two second guide cavities (17) which are respectively matched with the two rodent guide strips (21);
the two sides of the first guide plate (14) and the second guide plate (15) are fixedly connected with two connecting plate support rods (19), the connecting plate support rods (19) penetrate through the guide plate fixing frame (18), and the outer side of the guide plate fixing frame (18) is located between the first guide plate (14) and the guide plate fixing frame (18) and between the second guide plate (15) and the guide plate fixing frame (18) in a sleeved mode and is provided with a second return spring (20).
7. An electrical malfunction prevention device according to claim 6, characterized in that: the guide plate fixing frame (18) and the connecting plate support rod (19) are made of ceramics.
8. An electrical malfunction prevention device according to claim 1, characterized in that: the upper end of the protective shell (1) is connected with a sealing cover plate (2) through a screw.
9. An electrical malfunction prevention device according to claim 6, characterized in that: the connecting plate support rod (19) is a round rod, and one end of the round rod, which is close to the conductive connecting plate (11), is in threaded connection with a limiting ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111263519.5A CN113707474B (en) | 2021-10-28 | 2021-10-28 | Electric misoperation prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111263519.5A CN113707474B (en) | 2021-10-28 | 2021-10-28 | Electric misoperation prevention device |
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| Publication Number | Publication Date |
|---|---|
| CN113707474A true CN113707474A (en) | 2021-11-26 |
| CN113707474B CN113707474B (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111263519.5A Active CN113707474B (en) | 2021-10-28 | 2021-10-28 | Electric misoperation prevention device |
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| Country | Link |
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| CN (1) | CN113707474B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2711839A1 (en) * | 1993-10-25 | 1995-05-05 | Menini Manfred | Controlled power switch. |
| CN110047664A (en) * | 2019-02-28 | 2019-07-23 | 广东欧文特电气有限公司 | A kind of lift change-over switch |
| CN112309737A (en) * | 2020-11-04 | 2021-02-02 | 西安沃唯隆控制系统有限公司 | Dual-power switch operating mechanism |
| CN112865025A (en) * | 2021-02-23 | 2021-05-28 | 马海涛 | Automatic protection distribution switchgear for avoiding short circuit |
| CN213877863U (en) * | 2020-11-04 | 2021-08-03 | 西安沃唯隆控制系统有限公司 | Dual-power switch operating mechanism |
-
2021
- 2021-10-28 CN CN202111263519.5A patent/CN113707474B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2711839A1 (en) * | 1993-10-25 | 1995-05-05 | Menini Manfred | Controlled power switch. |
| CN110047664A (en) * | 2019-02-28 | 2019-07-23 | 广东欧文特电气有限公司 | A kind of lift change-over switch |
| CN112309737A (en) * | 2020-11-04 | 2021-02-02 | 西安沃唯隆控制系统有限公司 | Dual-power switch operating mechanism |
| CN213877863U (en) * | 2020-11-04 | 2021-08-03 | 西安沃唯隆控制系统有限公司 | Dual-power switch operating mechanism |
| CN112865025A (en) * | 2021-02-23 | 2021-05-28 | 马海涛 | Automatic protection distribution switchgear for avoiding short circuit |
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| Publication number | Publication date |
|---|---|
| CN113707474B (en) | 2022-03-01 |
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