CN219180416U - Driving device for opening and closing of isolating switch and isolating switch - Google Patents
Driving device for opening and closing of isolating switch and isolating switch Download PDFInfo
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- CN219180416U CN219180416U CN202223357207.3U CN202223357207U CN219180416U CN 219180416 U CN219180416 U CN 219180416U CN 202223357207 U CN202223357207 U CN 202223357207U CN 219180416 U CN219180416 U CN 219180416U
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Abstract
The utility model provides a driving device for opening and closing a disconnecting switch and the disconnecting switch, wherein the driving device comprises a telescopic driving device, a driving crank arm used for being connected with an operation shaft is hinged at the telescopic end of the telescopic driving device, the operation shaft is driven to rotate by the driving crank arm, the telescopic driving device is provided with an opening position and a closing position on a telescopic stroke, the driving device further comprises a control module used for controlling the action of the telescopic driving device, and the control module comprises a stroke switch arranged on the opening position and the closing position so as to control the telescopic position of the telescopic driving device. The driving device for opening and closing the isolating switch can effectively solve the technical problems of laborious operation, slow opening and closing actions and part abrasion of a transmission structure in the prior art due to manual operation.
Description
Technical Field
The utility model relates to a drive device for opening and closing an isolating switch and the isolating switch, belonging to the technical field of isolating switches.
Background
As shown in fig. 1, the transmission structure of the existing outdoor isolating switch for quick switching on/off specifically comprises: one end of the upper crank arm 2 is rotationally sleeved on the operation shaft 1 and limited by a limiting sleeve 3, the other end of the upper crank arm is connected with a lower crank arm 7 driven by a main shaft of the isolating switch through a screw rod 6 with two ends provided with a clamping fork 5, and the clamping fork 5 is connected with the corresponding crank arm through a pin shaft 4. When the switching-on/switching-off mechanism is used, an operator manually rotates the operation shaft to drive the upper crank arm to swing, so that the transmission part of the whole switching-on/switching-off mechanism is driven.
The reliability and connection conductivity of the transmission structure meet the industry standard, but the transmission structure has some problems in the use process, specifically: because the operating lever is directly connected with the crank arm, the operation is extremely laborious and slow, the operation force is difficult to master, and after long-time operation, the connecting part of each part is easy to wear due to uneven stress, so that the phenomenon of operation failure or unstable opening and closing occurs, and great hidden danger is caused for the normal operation of the whole opening and closing mechanism.
Disclosure of Invention
The utility model aims to provide a driving device for opening and closing a disconnecting switch, which solves the technical problems of laborious operation, slow opening and closing actions and part abrasion caused by manual operation of a transmission structure in the prior art. Meanwhile, the utility model also provides an isolating switch for solving the problems.
The driving device for opening and closing the isolating switch adopts the following technical scheme:
the driving device for opening and closing the isolating switch comprises a telescopic driving device, wherein a telescopic end of the telescopic driving device is hinged with a driving crank arm which is connected with an operation shaft, the operation shaft is driven to rotate through the driving crank arm, the telescopic driving device is provided with an opening position and a closing position on a telescopic stroke of the telescopic driving device, the driving device further comprises a control module which is used for controlling the telescopic driving device to act, and the control module comprises a travel switch which is arranged on the opening position and the closing position so as to control the telescopic position of the telescopic driving device.
The beneficial effects are that: the utility model provides a drive device for opening and closing a disconnecting switch, which is used for improving the existing operating mechanism for opening and closing the disconnecting switch, when the drive device is used, the telescopic end of the telescopic drive device is connected with an operating shaft through a driving crank arm, when the disconnecting switch is opened, a control module obtains a disconnecting signal and then controls the telescopic drive device to act, and a travel switch at a disconnecting position enables the telescopic drive device to act to the disconnecting position, so that the telescopic end of the telescopic drive device drives the operating shaft to rotate through the driving crank arm to finish the disconnecting action; when the electric vehicle is switched on, the control module controls the telescopic driving device to act after obtaining a switching-on signal, and enables the telescopic driving device to act to a switching-on position through a travel switch at the switching-on position, so that a telescopic end of the telescopic driving device drives the operation shaft to rotate through the driving crank arm to finish switching-on action; compared with the mode of manually rotating the operation shaft in the prior art, the driving device provided by the utility model has the advantages that the operation shaft is driven to rotate by the telescopic driving device, so that the problems of time and labor waste, low speed and uneven force in operation are effectively solved.
Further, the travel switch is a proximity switch.
The beneficial effects are that: because the proximity switch does not need to be in contact with the telescopic driving device during detection, abrasion to the telescopic driving device is avoided, and the service life of the driving device can be effectively ensured by using the proximity switch.
Further, two driving crank arms are arranged at intervals along the extending direction of the operation shaft when the telescopic driving device is used, one end of each driving crank arm is connected with the operation shaft in a rotation-stopping mode, the other end of each driving crank arm is connected with the corresponding operation shaft through a connecting shaft, and the telescopic end of the telescopic driving device is hinged with the two driving crank arms through a part, located between the two driving crank arms, of the connecting shaft.
The beneficial effects are that: the telescopic end of the telescopic driving device is connected with the operation shaft through the driving crank arms which are arranged at intervals, and the hinge positions of the telescopic driving device and the driving crank arms are arranged between the telescopic driving device and the operation shaft, so that the stability in the transmission process is effectively ensured, the abrasion caused in the transmission process is further reduced, and the service life of the driving device is prolonged.
Further, the driving crank arm is of a plate-shaped structure.
The beneficial effects are that: the driving crank arm adopts a plate-shaped structure, so that the stress performance is good and the processing is convenient.
Further, the connecting shaft is a pin shaft, pin holes for the pin shaft to pass through are formed in the end parts, used for being connected with the connecting shaft, of the two driving crank arms, and an anti-falling piece is arranged on the pin shaft so as to prevent the pin shaft from falling out of the pin holes when the pin shaft passes through the pin holes.
The beneficial effects are that: when the telescopic driving device is assembled, the telescopic end of the telescopic driving device is arranged between the two driving crank arms, then the pin shaft sequentially penetrates through the telescopic end and the two driving crank arms, and finally the anti-falling piece is arranged on the pin shaft, so that the telescopic driving device is convenient to install.
Further, the telescopic end of the telescopic driving device is hinged with the driving crank arm through a connecting rod, and the connecting rod is provided with a horizontal extension section connected with the telescopic end of the telescopic driving device and an inclined extension section connected with the driving crank arm.
The beneficial effects are that: the telescopic end of the telescopic driving device is connected with the driving crank arm through the connecting rod, and the connecting rod is provided with a horizontal extension section and an inclined extension section, so that the telescopic driving device can be arranged in a staggered manner in the height direction when being connected with the operation shaft, the telescopic driving device is more flexible in position when being arranged, and the adaptability of the driving device is improved.
Further, two connecting plates are arranged on the inclined extension section at intervals, and connecting holes for the connecting shafts to pass through are formed in the two connecting plates.
The beneficial effects are that: the inclined extension section is hinged with the connecting shaft through the two connecting plates, so that stability in a transmission process can be further improved, and abrasion caused in the transmission process is further reduced.
Further, a threaded connection structure for being in threaded connection with the telescopic end of the telescopic driving device is arranged on the horizontal extension section.
The beneficial effects are that: the horizontal extension section and the telescopic end of the telescopic driving device are in threaded connection, so that the stability of connection can be guaranteed, and the telescopic driving device is convenient to process.
Further, the telescopic driving device is an electric cylinder.
The beneficial effects are that: the electric cylinder has high control precision and low maintenance cost.
The isolating switch adopts the following technical scheme:
the isolating switch comprises a transmission structure, wherein a driving device is connected to an operation shaft of the transmission structure, the driving device comprises a telescopic driving device, a driving crank arm connected with the operation shaft is hinged to a telescopic end of the telescopic driving device, the operation shaft is driven to rotate through the driving crank arm, the telescopic driving device is provided with a brake separating position and a brake closing position on a telescopic stroke of the telescopic driving device, the driving device further comprises a control module used for controlling the telescopic driving device to act, and the control module comprises a travel switch arranged on the brake separating position and the brake closing position so as to control the telescopic position of the telescopic driving device.
The beneficial effects are that: the utility model provides an isolating switch, when in use, a telescopic end of a telescopic driving device is connected with an operation shaft through a driving crank arm, when the isolating switch is opened, a control module obtains an opening signal and then controls the telescopic driving device to act, and the telescopic driving device is enabled to act to an opening position through a travel switch at the opening position, so that the telescopic end of the telescopic driving device drives the operation shaft to rotate through the driving crank arm to complete the opening action; when the electric vehicle is switched on, the control module controls the telescopic driving device to act after obtaining a switching-on signal, and enables the telescopic driving device to act to a switching-on position through a travel switch at the switching-on position, so that a telescopic end of the telescopic driving device drives the operation shaft to rotate through the driving crank arm to finish switching-on action; compared with the mode of manually rotating the operation shaft in the prior art, the driving device provided by the utility model has the advantages that the operation shaft is driven to rotate by the telescopic driving device, so that the problems of time and labor waste, low speed and uneven force in operation are effectively solved.
Further, the travel switch is a proximity switch.
The beneficial effects are that: because the proximity switch does not need to be in contact with the telescopic driving device during detection, abrasion to the telescopic driving device is avoided, and the service life of the driving device can be effectively ensured by using the proximity switch.
Further, two driving crank arms are arranged at intervals along the extending direction of the operation shaft when the telescopic driving device is used, one end of each driving crank arm is connected with the operation shaft in a rotation-stopping mode, the other end of each driving crank arm is connected with the corresponding operation shaft through a connecting shaft, and the telescopic end of the telescopic driving device is hinged with the two driving crank arms through a part, located between the two driving crank arms, of the connecting shaft.
The beneficial effects are that: the telescopic end of the telescopic driving device is connected with the operation shaft through the driving crank arms which are arranged at intervals, and the hinge positions of the telescopic driving device and the driving crank arms are arranged between the telescopic driving device and the operation shaft, so that the stability in the transmission process is effectively ensured, the abrasion caused in the transmission process is further reduced, and the service life of the driving device is prolonged.
Further, the driving crank arm is of a plate-shaped structure.
The beneficial effects are that: the driving crank arm adopts a plate-shaped structure, so that the stress performance is good and the processing is convenient.
Further, the connecting shaft is a pin shaft, pin holes for the pin shaft to pass through are formed in the end parts, used for being connected with the connecting shaft, of the two driving crank arms, and an anti-falling piece is arranged on the pin shaft so as to prevent the pin shaft from falling out of the pin holes when the pin shaft passes through the pin holes.
The beneficial effects are that: when the telescopic driving device is assembled, the telescopic end of the telescopic driving device is arranged between the two driving crank arms, then the pin shaft sequentially penetrates through the telescopic end and the two driving crank arms, and finally the anti-falling piece is arranged on the pin shaft, so that the telescopic driving device is convenient to install.
Further, the telescopic end of the telescopic driving device is hinged with the driving crank arm through a connecting rod, and the connecting rod is provided with a horizontal extension section connected with the telescopic end of the telescopic driving device and an inclined extension section connected with the driving crank arm.
The beneficial effects are that: the telescopic end of the telescopic driving device is connected with the driving crank arm through the connecting rod, and the connecting rod is provided with a horizontal extension section and an inclined extension section, so that the telescopic driving device can be arranged in a staggered manner in the height direction when being connected with the operation shaft, the telescopic driving device is more flexible in position when being arranged, and the adaptability of the driving device is improved.
Further, two connecting plates are arranged on the inclined extension section at intervals, and connecting holes for the connecting shafts to pass through are formed in the two connecting plates.
The beneficial effects are that: the inclined extension section is hinged with the connecting shaft through the two connecting plates, so that stability in a transmission process can be further improved, and abrasion caused in the transmission process is further reduced.
Further, a threaded connection structure for being in threaded connection with the telescopic end of the telescopic driving device is arranged on the horizontal extension section.
The beneficial effects are that: the horizontal extension section and the telescopic end of the telescopic driving device are in threaded connection, so that the stability of connection can be guaranteed, and the telescopic driving device is convenient to process.
Further, the telescopic driving device is an electric cylinder.
The beneficial effects are that: the electric cylinder has high control precision and low maintenance cost.
Drawings
FIG. 1 is a schematic illustration of a device; a structural schematic diagram of a transmission structure for opening and closing an isolating switch in the prior art;
fig. 2 is a schematic diagram of a state of the drive device for opening and closing an isolating switch according to embodiment 1 of the present utility model;
fig. 3 is a plan view of the drive device for opening and closing the disconnecting switch in fig. 2;
fig. 4 is a schematic diagram showing a state of the drive device for opening and closing an isolating switch according to embodiment 1 of the present utility model;
fig. 5 is a plan view of the drive device for opening and closing the disconnecting switch in fig. 4.
The names of the corresponding components in the figures are:
in fig. 1: 1. an operation shaft; 2. an upper crank arm; 3. a limit sleeve; 4. a pin shaft; 5. a clamping fork; 6. a screw rod; 7. a lower crank arm;
fig. 2 to 5: 100. a telescopic driving device; 101. a connecting rod; 102. a horizontal extension; 103. an inclined extension; 104. a connecting plate; 105. driving the crank arm; 106. a connecting shaft; 107. u-shaped calipers; 108. a control board; 109. a relay module; 110. a switching power supply; 111. a first travel switch; 112. a second travel switch; 200. an operation shaft; 201. an upper crank arm; 202. a transmission rod; 203. and a lower crank arm.
Detailed Description
The present utility model is described in further detail below with reference to examples.
Embodiment 1 of the disconnecting switch in the utility model:
the isolating switch provided in this embodiment includes an isolating switch main shaft, and a transmission structure is connected to the isolating switch main shaft, as shown in fig. 2 and 3, where the transmission structure includes an operation shaft 200, an upper crank arm 201, a transmission rod 202 and a lower crank arm 203, and a driving device is connected to the operation shaft 200.
Specifically, in this embodiment, as shown in fig. 2 and 3, the driving device includes a telescopic driving device 100, a telescopic end of the telescopic driving device 100 is connected with a connecting rod 101, the telescopic end of the telescopic driving device 100 is hinged to one end of a driving crank arm 105 through the connecting rod 101, and the other end of the driving crank arm 105 is in anti-rotation connection with an operation shaft 200, so that the operation shaft 200 is driven to rotate by the driving crank arm 105 when the telescopic driving device 100 performs telescopic action. In order to ensure the stability during transmission, two driving crank arms 105 are arranged at intervals along the extending direction of the operation shaft 200 during use, one end of each driving crank arm 105 is connected with the operation shaft 200 in a rotation-stopping way, the other end of each driving crank arm is connected with the corresponding connecting shaft 106, and the connecting rod 101 is hinged with the two driving crank arms 105 through a part, located between the two driving crank arms 105, of the connecting shaft 106. To ensure the force-bearing performance of the driving lever 105, the driving lever 105 has a plate-like structure as shown in fig. 2 and 4.
In this embodiment, for easy installation, as shown in fig. 3 and 5, the connecting shaft 106 is a pin shaft, the end portions of the two driving crank arms 105 for connecting with the connecting shaft 106 are provided with pin holes for the pin shaft to pass through, and the pin shaft is provided with an anti-falling member, specifically a U-shaped caliper 107, so as to prevent the pin shaft from falling out of the pin holes when the pin shaft passes through the pin holes.
In this embodiment, in order to enable the telescopic driving device 100 to be arranged in a staggered manner in the height direction when being connected with the operation shaft 200, as shown in fig. 2 and 4, the connecting rod 101 is provided with a horizontal extension section 102 for connecting with the telescopic end of the telescopic driving device 100 and an inclined extension section 103 for connecting with the driving crank arm 105, and for convenience in installation, the horizontal extension section 102 is provided with a threaded connection structure for threaded connection with the telescopic end of the telescopic driving device 100, and the horizontal extension section 102 and the connecting rod are connected through threads. In order to ensure stability in the transmission process, two connecting plates 104 are arranged on the inclined extension section 103 at intervals, and connecting holes for the connecting shafts 106 to pass through are formed in the two connecting plates 104.
In this embodiment, the driving device further includes a control module for controlling the motion of the telescopic driving device 100, where the telescopic driving device 100 has a switching-off position and a switching-on position on a telescopic stroke thereof, and the control module includes a travel switch disposed on the switching-off position and the switching-on position to control the telescopic position of the telescopic driving device 100. The control module further comprises a control board 108, and the control board 108 is connected with travel switches on the opening position and the closing position through a relay module 109. In addition, the control module further includes a switching power supply 110 for supplying power to the control board 108, and the switching power supply 110 is connected by a 220v power supply.
In this embodiment, in order to reduce wear on the telescopic drive device 100 during proximity switch detection, the travel switch is a proximity switch, specifically an electromagnetic proximity switch. For convenience of description, the travel switch at the opening position is defined as a first travel switch 111, and the travel switch at the closing position is defined as a second travel switch 112.
In this embodiment, the telescopic driving device 100 is an electric cylinder. In addition, for easy assembly, the outer peripheral surface of the operation shaft 200 is provided with a V-shaped opening, the driving crank arm 105 is provided with a rotation stop block adapted to the V-shaped opening so as to form rotation stop connection therebetween, and the operation shaft 200 is further provided with a U-shaped caliper 107 so as to prevent the driving crank arm 105 from sliding in the axial direction thereof when connected to the driving crank arm 105.
The switching-on and switching-off process of the isolating switch in the embodiment is as follows: when the electric power is switched on, as shown in fig. 2 and 3, the control board 108 in the control module transfers the signal to be switched on sent by the current/voltage transformer to the relay module 109, and at the same time, the control board 108 signals the telescopic driving device 100, and the telescopic driving device 100 starts to start. The relay module 109 transmits a signal to the first travel switch 111 to adjust the first travel switch from the closed state to the open state, sends a vector signal, pushes the telescopic rod in the telescopic driving device 100 to be recovered to the second travel switch 112 inwards, adjusts the telescopic rod from the open state to the closed state, and locks the position of the telescopic rod on the telescopic driving device 100, so that the telescopic end of the telescopic driving device 100 drives the transmission structure to complete the brake separating action through the driving crank arm 105.
When the switch is opened, as shown in fig. 4 and 5, the control board 108 in the control module transfers the signal to be opened sent by the current/voltage transformer to the relay module 109, and at the same time, the control board 108 signals the telescopic driving device 100, and the telescopic driving device 100 starts to start. The relay module 109 transmits a signal to the second travel switch 112 to adjust the second travel switch from the closed state to the open state, sends a vector signal, pushes the telescopic rod in the telescopic driving device 100 to extend outwards to the first travel switch 111 to adjust the telescopic rod from the open state to the closed state, and locks the position of the telescopic rod on the telescopic driving device 100, so that the telescopic end of the telescopic driving device 100 drives the transmission structure to complete the brake separating action through the driving crank arm 105. Compared with the manual rotation of the operation shaft 200 in the prior art, the driving device provided in the embodiment drives the operation shaft 200 to rotate through the telescopic driving device 100, so that the problems of time and labor waste, low speed and uneven force during operation are effectively solved.
Embodiment 2 of the disconnecting switch in the utility model:
the present embodiment is different from embodiment 1 in that in embodiment 1, the telescopic driving device is an electric cylinder. In this embodiment, the telescopic driving device is a cylinder.
Embodiment 3 of the disconnecting switch in the utility model:
the present embodiment is different from embodiment 1 in that in embodiment 1, the horizontally extending section is screwed with the telescopic end of the telescopic driving device. In this embodiment, the horizontal extension section is connected to the telescopic end of the telescopic driving device through a pin.
the difference between this embodiment and embodiment 1 is that in embodiment 1, two connection plates are disposed on the inclined extension section at intervals, and connection holes through which the connection shaft passes are disposed on the two connection plates. In this embodiment, the inclined extension section is not provided with a connecting plate, and the inclined extension section has a rod-shaped structure, and the end of the inclined extension section is provided with a connecting hole through which the connecting shaft passes.
Example 5 of the disconnecting switch in the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the telescopic end of the telescopic driving device is hinged to the driving crank arm through a connecting rod. In this embodiment, the air box is not provided with an access cover plate. The telescopic end of the telescopic driving device is directly hinged with the driving crank arm.
the present embodiment is different from embodiment 1 in that in embodiment 1, the connecting shaft is a pin shaft. In this embodiment, the connecting shaft is integrally provided on one of the two transmission crank arms and is connected with the other transmission crank arm through a nut.
Embodiment 7 of the disconnecting switch in the utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the driving lever is in a plate structure. In this embodiment, the driving lever is in a rod-shaped structure.
Embodiment 8 of the disconnecting switch in the utility model:
the present embodiment is different from embodiment 1 in that in embodiment 1, two driving crank arms are arranged at intervals along the extending direction of the operation shaft in use. In this embodiment, only one driving lever is provided.
Example 9 of the disconnector in the present utility model:
the present embodiment is different from embodiment 1 in that in embodiment 1, the travel switch is a proximity switch. In this embodiment, the travel switch is a direct-acting travel switch.
In the embodiment of the driving device for opening and closing the isolating switch, the utility model comprises the following components:
the structure of the driving device for opening and closing the isolating switch provided in this embodiment is the same as that of the driving device in any embodiment of the isolating switch, and will not be described herein.
The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a drive arrangement for isolator divide-shut brake, its characterized in that includes flexible drive arrangement, flexible end of flexible drive arrangement articulates there is the drive turning arm that is used for being connected with the operating shaft to drive the operating shaft through the drive turning arm and rotate, flexible drive arrangement has on its flexible stroke and divides floodgate position and switch-on position, drive arrangement still including the control module that is used for controlling flexible drive arrangement action, control module is including arranging the travel switch on dividing floodgate position and switch-on position, in order to control flexible drive arrangement's flexible position.
2. The drive device for opening and closing a disconnector according to claim 1, wherein the travel switch is a proximity switch.
3. The drive device for opening and closing a disconnecting switch according to claim 1, wherein two drive crank arms are arranged at intervals along the extending direction of the operating shaft when in use, one end of each drive crank arm is connected with the operating shaft in a rotation-stopping manner, the other end of each drive crank arm is connected with the other end of each drive crank arm through a connecting shaft, and a telescopic end of the telescopic drive device is hinged with each drive crank arm through a part, located between the two drive crank arms, of the connecting shaft.
4. The drive device for opening and closing a disconnector according to claim 3, wherein the drive lever has a plate-like structure.
5. The driving device for opening and closing a disconnecting switch according to claim 3, wherein the connecting shaft is a pin shaft, the ends of the two driving crank arms, which are used for being connected with the connecting shaft, are provided with pin holes for the pin shaft to pass through, and the pin shaft is provided with an anti-falling piece for preventing the pin shaft from falling out of the pin holes when the pin shaft passes through the pin holes.
6. The drive device for opening and closing a disconnector according to any one of claims 3 to 5, characterized in that the telescopic end of the telescopic drive device is hinged to the drive lever by a connecting rod, which connecting rod has a horizontal extension for connection to the telescopic end of the telescopic drive device and a tilting extension for connection to the drive lever.
7. The driving device for opening and closing a disconnecting switch according to claim 6, wherein two connecting plates are arranged on the inclined extension section at intervals, and connecting holes for the connecting shafts to pass through are formed in the two connecting plates.
8. The drive device for opening and closing a disconnector according to claim 6, wherein a screw connection structure for screw connection with a telescopic end of the telescopic drive device is provided on the horizontal extension.
9. The drive device for opening and closing a disconnector according to any one of claims 1 to 5, characterized in that the telescopic drive device is an electric cylinder.
10. A disconnecting switch comprising a transmission structure, wherein an operating shaft of the transmission structure is connected with a driving device, and the driving device adopts the driving device for opening and closing the disconnecting switch according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223357207.3U CN219180416U (en) | 2022-12-14 | 2022-12-14 | Driving device for opening and closing of isolating switch and isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223357207.3U CN219180416U (en) | 2022-12-14 | 2022-12-14 | Driving device for opening and closing of isolating switch and isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219180416U true CN219180416U (en) | 2023-06-13 |
Family
ID=86665455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223357207.3U Active CN219180416U (en) | 2022-12-14 | 2022-12-14 | Driving device for opening and closing of isolating switch and isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219180416U (en) |
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2022
- 2022-12-14 CN CN202223357207.3U patent/CN219180416U/en active Active
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