CN218603028U - Middle-arranged type switch cabinet isolation baffle with locking function - Google Patents
Middle-arranged type switch cabinet isolation baffle with locking function Download PDFInfo
- Publication number
- CN218603028U CN218603028U CN202222975109.XU CN202222975109U CN218603028U CN 218603028 U CN218603028 U CN 218603028U CN 202222975109 U CN202222975109 U CN 202222975109U CN 218603028 U CN218603028 U CN 218603028U
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- circuit breaker
- baffle
- limiting
- switch
- open contact
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- 238000002955 isolation Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000012360 testing method Methods 0.000 claims description 21
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The utility model provides a middle-placed switch cabinet isolation baffle with a locking function, wherein a rolling curtain baffle part is arranged on a scroll in a winding way, and the side edge of the rolling curtain baffle can be clamped into a track groove to move and guide; the driving assembly comprises a driving motor and a limiter, the driving motor is in transmission connection with the scroll through a transmission shaft, the limiter is in transmission connection with the transmission shaft so as to drive the limiter to synchronously operate through the transmission shaft, and an upper limit switch and a lower limit switch in the limiter are respectively used for touching and detecting the upper limit position and the lower limit position of the shutter baffle; the control system is used for controlling the forward rotation, the stop and the reverse rotation of the driving motor. The utility model discloses a setting of driving motor and stopper etc. can receive and release of automatic drive book curtain baffle, and rely on the accurate controlled position of control system to control system rolls up the curtain baffle and receive and releases in monitoring circuit breaker handcart's simultaneous control, has the shutting function, has guaranteed the operation safety of operation personnel and equipment.
Description
Technical Field
The utility model relates to a cubical switchboard technical field, in particular to well formula cubical switchboard isolation baffle of putting of area shutting function.
Background
The traditional mid-set switch cabinet has a universal defect that a static contact isolation baffle has no locking function. When an operator shakes the breaker in a closing state to a working position from a test position due to negligence, and the five-prevention locking function of the switch cabinet is just failed at the moment, the misoperation accident of sending the breaker with load can occur, the arc discharge of the contact of the breaker is caused, and the serious consequences of casualties and equipment damage are caused. And the static contact isolation baffle is used as the last barrier for the contact between the moving contact and the static contact of the circuit breaker, and the occurrence of accidents of the type can not be prevented because the static contact isolation baffle does not have a locking function.
The chinese utility model patent publication No. CN202384682U discloses a driving device for a valve of a switch cabinet, which can touch a driving bracket to rotate clockwise when a circuit breaker handcart advances into a working position, the rear end of the driving bracket pulls a limiting bracket to rotate clockwise, and at this time, a limiting end of the limiting bracket and an upper L-shaped driving plate are staggered and cannot play a limiting role, and the valve can be normally opened; when the circuit breaker handcart retreats to enter a test position, the circuit breaker handcart is separated from the driving support, the rear end of the driving support rotates anticlockwise under the action of the tension spring, the rear end of the driving support drives the limiting support to rotate anticlockwise, and the limiting end of the limiting support rotates to the position below the upper L-shaped driving plate, so that the two L-shaped driving plates cannot rotate oppositely to achieve self-locking. Therefore, when the circuit breaker handcart enters a test position or is pulled out for maintenance in the comparison file, the valve on the switch cabinet cannot be opened, so that electric shock accidents can be effectively prevented, and the safety of the switch cabinet is favorably improved. The comparison file adopts a limiting support and other structures to form self-locking, and for the roller shutter type isolation baffle, the rotating state of the roller shutter type isolation baffle can be monitored and controlled orderly to form a locking function and the like as the roller shutter type isolation baffle drives the reel to rotate through the transmission shaft.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at: aiming at the defects in the prior art, the fixed contact isolation baffle with the locking function for the middle-mounted switch cabinet is provided, and specifically comprises a rolling curtain baffle component, a driving component and a control system;
the rolling curtain baffle plate assembly comprises a rolling curtain baffle plate, a scroll and a track groove, wherein part of the rolling curtain baffle plate is wound on the scroll, and the side edge of the rolling curtain baffle plate can be clamped into the track groove to move and guide;
the driving assembly comprises a driving motor and a limiting stopper, the driving motor is in transmission connection with the scroll through a transmission shaft, the limiting stopper is in transmission connection with the transmission shaft so as to drive the limiting stopper to synchronously operate through the transmission shaft, an upper limiting switch and a lower limiting switch are arranged in the limiting stopper, and the upper limiting switch and the lower limiting switch are respectively used for touch detection of an upper limiting position and a lower limiting position of the shutter baffle;
the control system is used for controlling the forward rotation, the stop and the reverse rotation of the driving motor, and the upper limit switch and the lower limit switch are electrically connected with the control system.
Furthermore, the roller shutter baffle is made of stainless steel materials and formed by connecting a plurality of baffle plates in series, and the baffle plates are connected in a hinged mode.
Furthermore, a driving gear which rotates synchronously is arranged on the transmission shaft, and the driving gear is used for transmitting to the limiting stopper.
Further, the stopper includes stopper mount pad, stopper toothed disc, lead screw, goes up the stopper dish, lower stopper dish, stopper toothed disc with the driving gear meshes mutually, stopper toothed disc and lead screw synchronous revolution, go up the stopper dish down the stopper dish is all established on the lead screw, with the lead screw forms screw-thread fit, go up the stopper dish one side of lower stopper dish all is provided with the connecting block, the connecting block slides and sets up in the guide way, the guide way with lead screw parallel arrangement, wherein, go up the stopper dish and be located one side of last limit switch, it is located to go up the stopper dish down one side of limit switch.
Further, the stopper still includes limit switch regulating part, limit switch regulating part is used for adjusting last limit switch, limit switch's mounted position down.
Further, the rolling shutter baffle assemblies are arranged in two groups, namely an upper rolling shutter baffle assembly and a lower rolling shutter baffle assembly, and are controlled by different driving assemblies to be matched with each other to form a vertical opening and closing mode.
Furthermore, the signals accessed from the input side of the control system comprise an upper limiter normally open contact, a lower limiter normally open contact, a breaker handcart test position limit switch normally open contact, a breaker handcart working position limit switch normally open contact and a breaker auxiliary normally open contact; when the normally open contact of the limiting switch at the test position of the circuit breaker handcart is closed, the circuit breaker handcart is shown at the test position; when the normally open contact of the limiting switch at the test position of the circuit breaker handcart is disconnected, the circuit breaker is shown to leave the test position; when the normally open contact of the limiting switch of the working position of the circuit breaker handcart is closed, the circuit breaker handcart is shown to be in the working position; when the normally open contact of the limiting switch of the working position of the circuit breaker handcart is disconnected, the circuit breaker is shown to leave the working position; when the auxiliary normally open contact of the circuit breaker is closed, the circuit breaker is in a closing state; when the auxiliary normally open contact of the circuit breaker is closed and opened, the circuit breaker is in an opening state.
The above technical scheme of the utility model has following beneficial effect:
the utility model provides a take middle-arranged formula cubical switchboard isolation barrier of blocking function, through the setting of driving motor and stopper etc. can receive and release of automatic drive book curtain baffle, and rely on the accurate control position of control system to control system rolls up the curtain baffle and receive and releases in monitoring circuit breaker handcart's simultaneous control, has the blocking function, has guaranteed the operation safety of operation personnel and equipment.
Other advantageous effects of the present invention will be described in detail in the following detailed description.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the stopper of the present invention;
fig. 3 is a schematic view of the upper and lower opening and closing of the present invention.
[ instruction of reference ]
1-rolling blind baffle; 2-a reel; 3-a track groove; 4-driving the motor; 5-a stopper; 6-a transmission shaft; 7-a driving gear; 8-a stopper mounting seat; 9-a stopper toothed disc; 10-a lead screw; 11-an upper limiting disc; 12-a lower limiting disc; 13-upper limit switch; 14-a lower limit switch; 15-limit switch regulating part; 16-connecting blocks; 17-guide groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and various combinations of features/embodiments are not separately described in order to avoid unnecessary repetition in the present disclosure.
It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed, installed and connected, or indirectly disposed and connected through intervening components and intervening structures. In addition, the directions or positional relationships indicated in the present invention, such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings or the conventional placing states or using states, and are only for convenience of description and simplification of description, but do not indicate or imply that the structure, feature, device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the embodiment of the utility model provides a mid-set type cubical switchboard isolation barrier of area shutting function, including rolling up curtain baffle subassembly, drive assembly and control system. The roller shutter baffle assembly comprises a roller shutter baffle 1, the roller shutter baffle 1 is partially wound on a winding shaft 2, and the side edge of the roller shutter baffle is clamped in a rail groove 3. Preferably, the shutter plate 1 is made of a stainless steel (non-magnetic) material, and a plurality of the shutter plates are connected in series, and the shutter plates are connected to each other by hinges so as to be able to be wound around the winding shaft 2 in a bending manner. Two sides of the rolling curtain baffle plate 1 are arranged in the fixed track groove 3, and the sides of the rolling curtain baffle plate 1 are lifted along the track groove 3 under the driving of the driving component to finish the retracting action.
In this embodiment, the drive assembly includes a drive motor 4 and a stopper 5. Wherein, the driving motor 4 drives the scroll 2 to rotate through the transmission shaft 6, and the rolling shutter baffle 1 is retracted. Meanwhile, the transmission shaft 6 is further sleeved with a driving gear 7, and the driving gear 7 drives the stopper 5 to operate. Specifically, in the present embodiment, the stopper 5 includes a stopper mounting seat 8, a stopper gear plate 9, a lead screw 10, an upper stopper plate 11, a lower stopper plate 12, an upper stopper switch 13, a lower stopper switch 14, and a stopper switch adjusting portion 15. Wherein, stopper toothed disc 9 meshes with driving gear 7 on the transmission shaft 6 mutually, and stopper toothed disc 9 is connected with lead screw 10 (key) simultaneously to drive lead screw 10 synchronous revolution. The upper limiting plate 11 and the lower limiting plate 12 are sleeved on the screw rod 10 and form threaded fit with the screw rod 10. In addition, the connecting blocks 16 are arranged at the top ends or the bottom ends of the upper limiting disc 11 and the lower limiting disc 12, the connecting blocks 16 are arranged in the guide grooves 17 in a sliding mode, and the guide grooves 17 are arranged in parallel with the lead screw 10, so that the upper limiting disc 11 and the lower limiting disc 12 can be controlled to move towards the two ends along the lead screw 10 when the lead screw 10 rotates.
The upper limit switch 13 and the lower limit switch 14 are both arranged at two ends of the screw 10 and are respectively used for limiting the upper limit disc 11 and the lower limit disc 12, so that when the upper limit disc 11 moves to contact with a contact of the upper limit switch 13, the upper limit switch 13 feeds back a signal to the control system, the control system controls the driving motor 4 to stop rotating, and the roller shutter baffle 1 stops sliding. When the driving motor 4 controls the upper limiting disc 11 and the lower limiting disc 12 to move towards the other end in a reverse rotation mode, and the lower limiting disc 12 moves to be in contact with a contact of the lower limiting switch 14, the lower limiting switch 14 feeds back a signal to the control system, the control system controls the driving motor 4 to stop rotating, and therefore the rolling shutter baffle 1 also stops sliding.
In this embodiment, the lead screw 10 is rotatably disposed on the limiter mounting seat 8, and one end thereof extends out of the limiter mounting seat 8 and is keyed on the limiter gear plate 9 so as to be driven by the driving motor 4 to rotate synchronously. The upper limit switch 13 and the lower limit switch 14 are uniformly arranged in the limiter mounting seat 8, the contacts of the upper limit switch and the lower limit switch are located at positions where the corresponding limit discs can move and touch, the arrangement distance corresponds to the stroke of the roller shutter baffle 1, namely, the upper limit disc 11 just contacts with the contact of the upper limit switch 13 when the roller shutter baffle 1 moves to the upper stroke limit, and the lower limit disc 12 just contacts with the contact of the lower limit switch 14 when the roller shutter baffle 1 moves to the lower stroke limit. In addition, limit switch adjustment portion 15 is the support bar, and limit switch's the back is provided with the draw-in groove that corresponds with the support bar, through the draw-in groove joint in the different positions of support bar, and adjusts the stroke demand that adapts to curtain baffle 1.
Meanwhile, as shown in fig. 3, as a preferred embodiment, in the present embodiment, two sets of rolling shutter baffle 1 assemblies are provided, which are an upper rolling shutter baffle assembly and a lower rolling shutter baffle assembly, and the isolation baffles of the switch cabinet are opened and closed up and down by controlling of different driving assemblies. It should be noted that, because the rolling shutter 1 is formed by hinging and connecting stainless steel sheets in series, when the winding shaft 2 of the lower rolling shutter assembly rotates in a predetermined direction (forward rotation), the rolling shutter 1 can be sequentially pushed to rise along the track groove 3.
In this embodiment, the control system is used for receiving the signal and controlling the forward rotation, the reverse rotation or the stop of the driving motor 4 in the two sets of driving components, so as to control the ascending, the stop and the descending of the upper roller shutter and the lower roller shutter. It can be understood that when the upper driving motor rotates forwards and the lower driving motor rotates backwards, the upper roller shutter plate rises and the lower roller shutter plate falls to open; when the upper driving motor rotates reversely and the lower driving motor rotates positively, the upper roller shutter plate descends and the lower roller shutter plate ascends to close.
In this embodiment, the signals accessed by the input side of the control system include: the circuit breaker handcart test position normally-open contact comprises (two) upper limiter normally-open contacts, (two) lower limiter normally-open contacts, a circuit breaker handcart test position limit switch normally-open contact, a circuit breaker handcart working position limit switch normally-open contact and a circuit breaker auxiliary normally-open contact. When a normally open contact of a limit switch of a test position of the circuit breaker handcart is closed, the circuit breaker handcart is shown to be at the test position; when it opens, it indicates that the circuit breaker is out of the test position. When the normally open contact of the limit switch at the working position of the circuit breaker handcart is closed, the circuit breaker handcart is shown to be at the working position; when it is open, it indicates that the circuit breaker is out of the operating position. When the auxiliary normally open contact of the circuit breaker is closed, the circuit breaker is in a closing state; when the breaker is opened, the breaker is in an opening state.
When the circuit breaker is in a switching-off state, the handcart of the circuit breaker can be shaken into the working position from the test position, and if the handcart of the circuit breaker is shaken into the working position in a switching-on state, an arc-drawing short-circuit accident can occur when a fixed contact and a moving contact of the circuit breaker are close to each other. If the isolation baffle is not opened at the moment, a barrier is formed between the movable contact and the fixed contact, so that accidents can be avoided. Therefore, when the control system detects that the normally open contact of the handcart test position of the circuit breaker is disconnected and the auxiliary normally open contact of the circuit breaker is also disconnected, the control system can send an output signal to drive the upper baffle driving motor to rotate forwards, the lower baffle driving motor rotates backwards, the upper roller shutter baffle rises at the moment, and the lower roller shutter baffle falls and is opened. When the normally open contact of the upper baffle plate limiter is closed, the upper roller shutter baffle plate is in place; when the normally open contact of the lower baffle plate limiting stopper is closed, the lower roller shutter baffle plate is in place, and the control system sends an output signal to stop the upper baffle plate driving motor and the lower baffle plate driving motor at the moment.
When the power failure operation is performed, when the control system detects that the normally open contact of the circuit breaker handcart working position limiting switch is disconnected and the normally open contact of the circuit breaker handcart testing position limiting switch is closed, the signal is sent to drive the upper baffle driving motor to rotate reversely, the lower baffle driving motor rotates normally, the upper roller shutter baffle descends at the moment, and the lower roller shutter baffle ascends. When the normally open contact of the upper baffle plate limiter is closed, the upper roller shutter baffle plate is in place; when the normally open contact of the lower baffle plate limiting stopper is closed, the lower roller shutter baffle plate is in place, and the control system sends an output signal to stop the upper baffle plate driving motor and the lower baffle plate driving motor at the moment.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A middle-mounted switch cabinet isolation baffle with a locking function is characterized by comprising a roller shutter baffle component, a driving component and a control system;
the roller shutter baffle assembly comprises a roller shutter baffle (1), a scroll (2) and a track groove (3), wherein the roller shutter baffle (1) is partially wound on the scroll (2), and the side edge of the roller shutter baffle (1) can be clamped into the track groove (3) to move and guide;
the driving assembly comprises a driving motor (4) and a limiting stopper (5), the driving motor (4) is in transmission connection with the scroll (2) through a transmission shaft (6), the limiting stopper (5) is in transmission connection with the transmission shaft (6) so as to drive the limiting stopper (5) to synchronously operate through the transmission shaft (6), an upper limiting switch (13) and a lower limiting switch (14) are arranged in the limiting stopper (5), and the upper limiting switch (13) and the lower limiting switch (14) are respectively used for touch detection of an upper limiting position and a lower limiting position of the roller shutter baffle (1);
the control system is used for controlling the forward rotation, the stop and the reverse rotation of the driving motor (4), and the upper limit switch and the lower limit switch are electrically connected with the control system.
2. The centrally-mounted switch cabinet isolation baffle with the locking function as claimed in claim 1, wherein the roller shutter baffle (1) is made of stainless steel material and is formed by connecting a plurality of baffle plates in series, and the baffle plates are connected in a hinged manner.
3. The centrally-mounted switchgear cabinet partition with locking function according to claim 1, wherein said transmission shaft (6) is provided with a driving gear (7) rotating synchronously, and said driving gear (7) is used for transmitting to said limiter (5).
4. The central switch cabinet isolation baffle with the locking function of claim 3, wherein the limiter (5) comprises a limiter mounting seat (8), a limiter gear disc (9), a lead screw (10), an upper limiting disc (11) and a lower limiting disc (12), the limiter gear disc (9) is meshed with the driving gear (7), the limiter gear disc (9) rotates synchronously with the lead screw (10), the upper limiting disc (11) and the lower limiting disc (12) are sleeved on the lead screw (10) and form a threaded fit with the lead screw (10), a connecting block (16) is arranged on one side of the upper limiting disc (11) and one side of the lower limiting disc (12), the connecting block (16) is slidably arranged in a guide groove (17), the guide groove (17) is arranged in parallel to the lead screw (10), the upper limiting disc (11) is located on one side of the upper limiting switch (13), and the lower limiting disc (12) is located on one side of the lower limiting switch (14).
5. The centrally-mounted switchgear cabinet isolating barrier with locking function as claimed in claim 4, wherein the limiting stopper (5) further comprises a limiting switch adjusting part (15), and the limiting switch adjusting part (15) is used for adjusting the installation positions of the upper limiting switch (13) and the lower limiting switch (14).
6. The centrally-mounted switch cabinet isolation baffle with the locking function as claimed in claim 1, wherein two groups of rolling shutter baffle assemblies are provided, namely an upper rolling shutter baffle assembly and a lower rolling shutter baffle assembly, and are controlled by different driving assemblies to cooperate to form an up-and-down opening and closing mode.
7. The central switch cabinet isolation baffle with the locking function as claimed in claim 1, wherein the signal accessed from the input side of the control system comprises an upper stopper normally-open contact, a lower stopper normally-open contact, a circuit breaker handcart test position limit switch normally-open contact, a circuit breaker handcart working position limit switch normally-open contact and a circuit breaker auxiliary normally-open contact; when the normally open contact of the limiting switch at the test position of the circuit breaker handcart is closed, the circuit breaker handcart is shown at the test position; when the normally open contact of the limiting switch at the test position of the circuit breaker handcart is disconnected, the circuit breaker is shown to leave the test position; when the normally open contact of the limiting switch of the working position of the circuit breaker handcart is closed, the circuit breaker handcart is shown to be in the working position; when the normally open contact of the limiting switch at the working position of the circuit breaker handcart is disconnected, the circuit breaker is shown to leave the working position; when the auxiliary normally open contact of the circuit breaker is closed, the circuit breaker is in a closing state; when the auxiliary normally open contact of the circuit breaker is closed and opened, the circuit breaker is in an opening state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222975109.XU CN218603028U (en) | 2022-11-09 | 2022-11-09 | Middle-arranged type switch cabinet isolation baffle with locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222975109.XU CN218603028U (en) | 2022-11-09 | 2022-11-09 | Middle-arranged type switch cabinet isolation baffle with locking function |
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| Publication Number | Publication Date |
|---|---|
| CN218603028U true CN218603028U (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222975109.XU Active CN218603028U (en) | 2022-11-09 | 2022-11-09 | Middle-arranged type switch cabinet isolation baffle with locking function |
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| CN (1) | CN218603028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119381956A (en) * | 2024-10-30 | 2025-01-28 | 中国电力科学研究院有限公司 | A valve mechanism locking system, method, device and medium |
-
2022
- 2022-11-09 CN CN202222975109.XU patent/CN218603028U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119381956A (en) * | 2024-10-30 | 2025-01-28 | 中国电力科学研究院有限公司 | A valve mechanism locking system, method, device and medium |
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