CN115477235A - Lifting type folding arm crane for switch cabinet conveyer - Google Patents
Lifting type folding arm crane for switch cabinet conveyer Download PDFInfo
- Publication number
- CN115477235A CN115477235A CN202211284279.1A CN202211284279A CN115477235A CN 115477235 A CN115477235 A CN 115477235A CN 202211284279 A CN202211284279 A CN 202211284279A CN 115477235 A CN115477235 A CN 115477235A
- Authority
- CN
- China
- Prior art keywords
- lifting
- arm
- crane
- rotating shaft
- switch cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
- B66C23/166—Simple cranes with jibs which may be fixed or can slew or luff
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/50—Applications of limit circuits or of limit-switch arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to a part of a switch cabinet carrier, in particular to a lifting type folding arm crane for the switch cabinet carrier, which comprises a lifting frame, a servo hoist for driving the lifting frame to lift on a carrier upright post, a winder and a hoist control handle matched with the servo hoist, and a transmission assembly for connecting the servo hoist and the lifting frame, wherein the servo hoist is fixed at the top of the carrier upright post, and the transmission assembly is connected with the lifting frame through a steering assembly. The lifting frame is driven to lift by the servo hoist matched with the winder and the transmission assembly, the lifting frame is stable and reliable to lift, and meanwhile the steering assembly is used for driving the steering of the lifting frame, so that the switch frame lifted on the lifting frame through the lifting clamp can flexibly steer and generate certain displacement, and the lifting frame is simple to operate and flexible and changeable to use.
Description
Technical Field
The invention relates to a part of a switch cabinet conveyor, in particular to a lifting type folding arm crane for the switch cabinet conveyor.
Background
The cubical switchboard is general bulky, in the installation, need loop wheel machine or conveyer to carry usually, consequently, need be equipped with special elevating system and carry the transport of going up and down to the cubical switchboard that hoists, conventional elevating system generally only possesses raising and lowering functions, when the cubical switchboard need turn to or produce the displacement, need adopt other to turn to complementary unit or carry complementary unit and assist, it is more troublesome to operate, and some turn to complementary unit, often can only carry out the single section and turn to, turn to the flexibility relatively poor.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention provides the lifting type folding arm crane for the switch cabinet carrier, which adopts the servo hoist, the winder and the transmission assembly to drive the lifting frame to lift stably and reliably, and meanwhile, the turning assembly is arranged on the lifting frame to drive the turning of the folding arm assembly, so that the switch frame lifted on the folding arm assembly through the lifting clamp can flexibly turn in multiple sections and generate displacement in multiple sections, the operation is simple, and the flexible and variable switch cabinet carrier is used.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a cubical switchboard is over-and-under type arm crane for carrier, includes that carrier stand, lift connection roll over the arm subassembly on the carrier stand and the servo hoist drive elevating system that the arm subassembly goes up and down is rolled over in the drive, servo drive elevating system includes servo hoist, the winder and the calabash brake lever of cooperation servo hoist and the drive assembly who connects servo hoist and crane that lift on the carrier stand, servo hoist fixes the top at the carrier stand, drive assembly is connected with the crane through a floating joint, roll over the arm subassembly and rotate the base arm of turning to and connect the extension arm that turns to on turning to the base arm including rotating the connection on the crane, be equipped with a connection on the crane and turn to the subassembly that turns to of base arm.
The lifting frame is driven to lift by the servo hoist matched with the winder and the transmission assembly, the lifting frame is stable and reliable in lifting, meanwhile, the turning assembly is arranged on the lifting frame to drive the turning of the arm folding assembly, so that the switch frame lifted on the arm folding assembly by the lifting clamp can flexibly turn in multiple sections and generate displacement in multiple sections, the operation is simple, and the use is flexible and changeable.
Preferably, the transmission assembly comprises a transmission wheel and a lifting wheel which are connected together through a steel wire rope, the transmission wheel is fixed at the top of the vertical column of the conveyor through a transmission wheel frame, and the lifting wheel is arranged at the top of the steering assembly through a lifting wheel frame.
The structure ensures that the servo hoist can more stably and reliably lift by driving the lifting frame through the transmission assembly.
Preferably, the steering assembly comprises a first rotating shaft and a bearing matched with the first rotating shaft, the floating joint is connected to the bottom of the lifting wheel frame through a floating head support, and the first rotating shaft is connected with the lifting frame through at least one bearing.
The structure enables the connection between the lifting wheel frame and the floating joint to be more stable, and meanwhile, the steering assembly can perform steering operation relative to the lifting frame well.
Preferably, one end of the steering base arm is fixed on the first rotating shaft through a first fixing shaft sleeve, and one end of the steering extension arm is rotatably connected to the other end of the steering base arm through a rotating joint.
The structure ensures that the rotation of the steering base arm relative to the lifting frame is more stable and reliable, and simultaneously ensures that the rotation of the steering extension arm relative to the steering base arm is more stable and reliable.
Preferably, the vertical column of the conveyor is provided with two linear slide rails matched with the lifting frame, the lifting frame is connected to the linear slide rails in a sliding mode through a plurality of lifting slide blocks, and the vertical column of the conveyor is provided with an upper limit switch and a lower limit switch matched with the linear slide rails.
The structure further ensures that the lifting of the lifting frame on the upright post of the conveyer is stable and reliable.
Preferably, the lifting frame comprises an upper supporting plate, a lower supporting plate and a lifting sliding plate for connecting the rear end of the upper supporting plate and the rear end of the lower supporting plate, and the lifting sliding block is fixed on the back of the lifting sliding plate; the first rotating shaft is connected with the upper supporting plate through a first upper bearing, and the first rotating shaft is connected with the lower supporting plate through a first lower bearing.
The structure ensures that the lifting frame slides up and down on the linear slide rail more stably and reliably; the first rotating shaft is ensured to rotate more stably and reliably relative to the lifting frame.
Preferably, the linear slide rails are fixed on the vertical column of the conveyer through slide rail fixing plates, each linear slide rail is matched with two lifting slide blocks, and the two pairs of lifting slide blocks are respectively fixed at the top and the bottom of the back of each lifting slide plate.
The structure ensures that the lifting of the lifting slide plate on the linear slide rail is more stable and reliable.
Preferably, the bottom of conveyer stand is equipped with supporting baseplate, supporting baseplate's bottom is fixed with the support base, be equipped with a plurality of fork truck transport jacks on the support base, be equipped with four strengthening ribs between supporting baseplate and the conveyer stand, the position of four strengthening ribs corresponds four angles of conveyer stand respectively, the bottom of supporting baseplate is equipped with four altitude mixture control stabilizer blades.
The structure enables the support of the carrier upright post to be stable and reliable, thereby further ensuring that the lifting frame can stably and reliably lift on the carrier upright post.
Preferably, the rotary joint comprises an upper fixing plate, a lower fixing plate, a second rotating shaft rotatably connected to one end of the upper fixing plate and one end of the lower fixing plate, and a joint reinforcing rod fixed to the middle of the upper fixing plate and the middle of the lower fixing plate, and one end of the steering extension arm is fixed between the other end of the upper fixing plate and the other end of the lower fixing plate.
The structure further ensures that the rotation of the steering extension arm relative to the steering base arm or the previous steering extension arm is more stable and reliable.
Preferably, the other end of the steering base arm is fixed on a second rotating shaft through a second fixing shaft sleeve, the second rotating shaft is connected with the upper fixing plate through a second upper bearing, and the second rotating shaft is connected with the lower fixing plate through a second lower bearing.
The structure ensures that the second rotating shaft rotates more stably and reliably relative to the upper and lower fixed plates.
The lifting frame is driven to lift by the servo hoist matched with the winder and the transmission assembly, the lifting frame is stable and reliable in lifting, meanwhile, the turning assembly is arranged on the lifting frame to drive the turning of the arm folding assembly, so that the switch frame lifted on the arm folding assembly by the lifting clamp can flexibly turn in multiple sections and generate displacement in multiple sections, the operation is simple, and the use is flexible and changeable.
Drawings
FIG. 1 is a schematic view of one of the angles of the present invention;
FIG. 2 is a schematic view of another embodiment of the present invention;
FIG. 3 is an enlarged schematic view at I of FIG. 1;
in the figure: 1. the lifting frame comprises a lifting frame, 2 a vertical column of a transporter, 3 a servo hoist, 4 a winder, 5 a hoist control handle, 6 a transmission wheel, 7 a lifting wheel, 8 a transmission wheel frame, 9 a lifting wheel frame, 10 a first rotating shaft, 11 a floating joint, 12 a floating head bracket, 13 a first upper bearing, 14 a first lower bearing, 15 a linear slide rail, 16 a lifting slide block, 17 an upper limit switch, 18 a lower limit switch, 19 an upper support plate, 20 a lower support plate, 21 a lifting slide plate, 22 a slide rail fixing plate, 23 a support base plate, 24 a reinforcing rib, 25 a steel wire rope, 26 a steering base arm, 27 a steering extension arm, 28 a first fixing shaft sleeve, 29 an upper fixing plate, 30 a lower fixing plate, 31 a support base, 32 a joint reinforcing rod, 33 a second fixing shaft sleeve, 34 a transporting insertion hole of a forklift and 35 a height adjusting support foot.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1-3, a lifting type folding arm crane for a switch cabinet conveyor, comprising a conveyor upright post 2, a folding arm component connected to the conveyor upright post 2 in a lifting manner and a servo hoist driving lifting mechanism for driving the folding arm component to lift, wherein the servo driving lifting mechanism comprises a lifting frame 1, a servo hoist 3 for driving the lifting frame 1 to lift on the conveyor upright post 2, a winder 4 and a hoist control handle 5 matched with the servo hoist 3 and a transmission component for connecting the servo hoist 3 and the lifting frame 1, the servo hoist 3 is fixed at the top of the conveyor upright post 2, the transmission component is connected with the lifting frame 1 through a floating joint 11, the folding arm component comprises a turning base arm 26 rotatably connected to the lifting frame 1 and a turning extension arm 27 rotatably connected to the turning base arm 26, and the lifting frame 1 is provided with a turning component for connecting the turning base arm 26. The transmission assembly comprises a transmission wheel 6 and a lifting wheel 7 which are connected together through a steel wire rope 25, the transmission wheel 6 is fixed at the top of the vertical column 2 of the conveyor through a transmission wheel frame 8, and the lifting wheel 7 is arranged at the top of the steering assembly through a lifting wheel frame 9. The steering assembly comprises a first rotating shaft 10 and a bearing matched with the first rotating shaft 10, the floating joint 11 is connected to the bottom of the lifting wheel frame 9 through a floating head support 12, and the first rotating shaft 10 is connected with the lifting frame 1 through two bearings. One end of the steering base arm 26 is fixed to the first rotating shaft 10 by a first fixing bushing 28, and one end of the steering extension arm 27 is rotatably connected to the other end of the steering base arm 26 by a rotating joint.
Two linear slide rails 15 matched with the lifting frame 1 are arranged on the conveyor upright post 2, the lifting frame 1 is connected to the linear slide rails 15 in a sliding mode through four lifting slide blocks 16, and an upper limit switch 17 and a lower limit switch 18 matched with the linear slide rails 15 are arranged on the conveyor upright post 2. The lifting frame 1 comprises an upper supporting plate 19, a lower supporting plate 20 and a lifting sliding plate 21 which is connected with the rear end of the upper supporting plate 19 and the rear end of the lower supporting plate 20, and a lifting sliding block 16 is fixed on the back of the lifting sliding plate 21. The first rotating shaft 10 is connected to an upper support plate 19 through a first upper bearing 13, and the first rotating shaft 10 is connected to a lower support plate 20 through a first lower bearing 14. The linear slide rails 15 are fixed on the carrier upright post 2 through slide rail fixing plates 22, each linear slide rail is matched with two lifting slide blocks, and the two pairs of lifting slide blocks are respectively fixed at the top and the bottom of the back of the lifting slide plate 21. The bottom of conveyer stand 2 is equipped with supporting baseplate 23, and supporting baseplate 23's bottom is fixed with support base 31, is equipped with a plurality of fork truck transport jack 34 on the support base 31, is equipped with four strengthening ribs 24 between supporting baseplate 23 and the conveyer stand 2, and the position of four strengthening ribs corresponds four angles of conveyer stand 2 respectively, and the bottom of supporting baseplate 31 is equipped with four altitude mixture control stabilizer blades 35. The revolute joint includes an upper fixing plate 29, a lower fixing plate 30, a second revolute shaft rotatably connected to one end of the upper fixing plate 29 and one end of the lower fixing plate 30, and a joint reinforcing bar 32 fixed to the middle of the upper fixing plate 29 and the middle of the lower fixing plate 30, and one end of the extending rotary arm 27 is fixed between the other end of the upper fixing plate 29 and the other end of the lower fixing plate 30. The other end of the steering base arm 26 is fixed to a second rotating shaft through a second fixing bushing 33, the second rotating shaft is connected to the upper fixing plate 29 through a second upper bearing, and the second rotating shaft is connected to the lower fixing plate 30 through a second lower bearing.
When the lifting mechanism is used, the lifting clamp is arranged at the end part of the steering extension arm, the lifting clamp lifts the switch cabinet, and when the lifting mechanism needs to lift, the servo hoist is controlled by the hoist control handle to move to drive the lifting rack to lift, so that the folding arm assembly, the lifting clamp and the lifted switch cabinet are driven to lift; when needing to turn to, only need push slightly hard earlier and turn to the base arm, then push slightly hard again and turn to the extension arm for stone tongs and the cubical switchboard that hoists well rotate the assigned position can.
The servo hoist, the winder, the floating joint and the hoist control handle are all conventional components purchased on the market, and the specific structure and the working process are all conventional means, so the detailed description is omitted.
Wherein the load of the servo hoist: 600kg, power: 2KW, maximum hoisting speed: 6.75m/min-7.5m/min.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a cubical switchboard is over-and-under type for conveyer folds arm and hangs which characterized in that: it includes that carrier stand, lift connection roll over arm subassembly and drive on the carrier stand roll over servo hoist drive elevating system that arm subassembly goes up and down, servo drive elevating system includes crane, drive lifting frame servo hoist, cooperation servo hoist's winder and calabash brake lever and the drive assembly of connecting servo hoist and crane that goes up and down on the carrier stand, servo hoist fixes the top at the carrier stand, drive assembly is connected with the crane through a floating joint, roll over the arm subassembly and connect the base arm that turns to on turning to the base arm and rotate the extension arm that turns to including rotating the connection on the crane, be equipped with a connection on the crane and turn to the subassembly that turns to of base arm.
2. The lifting type folding arm crane for the switch cabinet conveyor as claimed in claim 1, wherein: the transmission assembly comprises a transmission wheel and a lifting wheel which are connected together through a steel wire rope, the transmission wheel is fixed at the top of the vertical column of the conveyor through a transmission wheel frame, and the lifting wheel is arranged at the top of the steering assembly through a lifting wheel frame.
3. The lifting type folding arm crane for the switch cabinet conveyor as claimed in claim 2, wherein: the steering assembly comprises a first rotating shaft and a bearing matched with the first rotating shaft, the floating joint is connected to the bottom of the lifting wheel frame through a floating head support, and the first rotating shaft is connected with the lifting frame through at least one bearing.
4. The lifting type folding arm crane for the switch cabinet conveyor as claimed in claim 3, wherein: one end of the steering base arm is fixed on the first rotating shaft through the first fixing shaft sleeve, and one end of the protected steering extension arm is rotatably connected to the other end of the steering base arm through the rotating joint.
5. The lifting type folding arm crane for the switch cabinet conveyor as claimed in claim 3, wherein: the lifting frame is connected to the linear slide rails in a sliding mode through a plurality of lifting slide blocks, and the upper limit switch and the lower limit switch matched with the linear slide rails are arranged on the conveyor stand column.
6. The lifting type folding arm crane for the switch cabinet conveyor as claimed in claim 5, wherein: the lifting frame comprises an upper supporting plate, a lower supporting plate and a lifting sliding plate which is connected with the rear end of the upper supporting plate and the rear end of the lower supporting plate, and the lifting sliding block is fixed on the back of the lifting sliding plate; the first rotating shaft is connected with the upper supporting plate through a first upper bearing, and the first rotating shaft is connected with the lower supporting plate through a first lower bearing.
7. The lifting type folding arm crane for the switch cabinet conveyor as claimed in claim 6, wherein: the linear slide rails are fixed on the vertical columns of the transporter through slide rail fixing plates, each linear slide rail is matched with two lifting slide blocks, and the two pairs of lifting slide blocks are respectively fixed at the top and the bottom of the back of each lifting slide plate.
8. The lifting type folding arm crane for the switch cabinet conveyor as claimed in claim 1, wherein: the bottom of conveyer stand is equipped with supporting baseplate, supporting baseplate's bottom is fixed with the support base, be equipped with a plurality of fork truck transport jacks on the support base, be equipped with four strengthening ribs between supporting baseplate and the conveyer stand, the position of four strengthening ribs corresponds four angles of conveyer stand respectively, the bottom of supporting baseplate is equipped with four altitude mixture control stabilizer blades.
9. The lifting type folding arm crane for the switch cabinet conveyor as claimed in claim 4, wherein: the rotating joint comprises an upper fixing plate, a lower fixing plate, a second rotating shaft and a joint reinforcing rod, wherein the second rotating shaft is rotatably connected to one end of the upper fixing plate and one end of the lower fixing plate, the joint reinforcing rod is fixed to the middle portion of the upper fixing plate and the middle portion of the lower fixing plate, and one end of the steering extension arm is fixed between the other end of the upper fixing plate and the other end of the lower fixing plate.
10. The lifting type folding arm crane for the switch cabinet conveyor as claimed in claim 9, wherein: the other end of the steering base arm is fixed on a second rotating shaft through a second fixing shaft sleeve, the second rotating shaft is connected with the upper fixing plate through a second upper bearing, and the second rotating shaft is connected with the lower fixing plate through a second lower bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284279.1A CN115477235A (en) | 2022-10-15 | 2022-10-15 | Lifting type folding arm crane for switch cabinet conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284279.1A CN115477235A (en) | 2022-10-15 | 2022-10-15 | Lifting type folding arm crane for switch cabinet conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115477235A true CN115477235A (en) | 2022-12-16 |
Family
ID=84395151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211284279.1A Pending CN115477235A (en) | 2022-10-15 | 2022-10-15 | Lifting type folding arm crane for switch cabinet conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115477235A (en) |
-
2022
- 2022-10-15 CN CN202211284279.1A patent/CN115477235A/en active Pending
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