CN116163265A - Lifting and drainage integrated device for hidden flood control wall - Google Patents
Lifting and drainage integrated device for hidden flood control wall Download PDFInfo
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- CN116163265A CN116163265A CN202310164558.2A CN202310164558A CN116163265A CN 116163265 A CN116163265 A CN 116163265A CN 202310164558 A CN202310164558 A CN 202310164558A CN 116163265 A CN116163265 A CN 116163265A
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Abstract
The invention relates to a lifting and drainage integrated device for a hidden flood control wall. The flood control wall adopts the pneumatic cylinder to cooperate folding rod drive wall body to accomplish the lift, inlays completely in the road surface after laying down, and the panel sets up anti-skidding material, does not influence vehicle and pedestrian and passes, and can control the lift of flood control wall by electronic, manual, remote control, response and remote mode, controls convenient and fast. The technical problems that the traditional flood control wall needs to occupy space for storage, is inconvenient to transport, install and use, and can not timely block water sources to cause great tragic loss once a flood disaster is suddenly caused and the reasons such as transportation and equipment maintenance are added are solved.
Description
Technical Field
The invention relates to the field of ecological restoration management of a river channel and flood control of two sides of the river channel, in particular to a lifting and drainage integrated device for a hidden flood control wall.
Background
Most of urban underground space and civil air defense projects adopt a flood prevention water retaining gate arranged at the highest position of an inlet, a sufficient amount of flood prevention sand bags are prepared, the rain amount is prevented from being too large and concentrated, the design capacity of an original drainage system is exceeded, the water accumulation amount at the inlet of an underground parking lot exceeds the drainage flow to become waterlogged, and adults are disasters.
However, most gates configured by the existing flood gate are temporary facilities, are in an idle state at ordinary times, occupy space for storage, are inconvenient to transport, install and use, and require a large amount of manpower and material resources, and once a flood disaster is suddenly caused, the water source cannot be blocked in time due to the reasons of transportation, equipment maintenance and the like of the flood gate, and huge tragic loss is caused. The movable flood control wall disclosed in patent CN201310286257.3, the assembled movable flood control wall disclosed in patent CN201510327493.4 and the combined flood control wall disclosed in patent CN201610591409.4 need to temporarily carry the upright posts and the baffle plates and install the upright posts on the sockets or the posts, and the baffle plates are installed between the upright posts to form the flood control wall, so that the transportation process is time-consuming and labor-consuming, and the installation and disassembly processes are complicated.
Disclosure of Invention
To above-mentioned, for solving the above-mentioned problem, provide a lift drainage integrated device that hidden flood control wall was used, including box, door leaf and drive assembly, its characterized in that: the box body is arranged in a pit below the ground, the door leaf and the driving assembly are positioned in the box body, the door leaf comprises a water retaining panel and a back water panel, one end of the door leaf is fixedly connected with a bottom shaft, the bottom shaft is rotationally connected to the side wall of the box body through the bottom shaft fixing assembly, the driving assembly comprises a hydraulic cylinder and a folding rod, the folding rod is divided into a first section and a second section, the first section and the second section are rotationally connected through a rotating seat, the hydraulic cylinder and the first section of the folding rod are rotationally connected to a bottom plate of the box body through a support assembly, a telescopic shaft of the hydraulic cylinder and the second section of the folding rod are rotationally connected with an ear plate fixedly arranged in the middle of the back water panel, the hydraulic cylinder is electrically connected with a remote control system, and the driving assembly is used for driving the door leaf to rotate around the bottom shaft; in flood season, the door leaf can rotate to vertical state and be used for stopping flood, in non-flood season, the door leaf can rotate to the horizontality and link up with the road surface is parallel, does not influence pedestrian and vehicle free passage.
Further, a first pressure sensor is arranged on the surface of the middle section of the water retaining panel, the first pressure sensor is electrically connected with the hydraulic cylinder, and the first pressure sensor is used for detecting the pressure born by the water retaining panel so as to automatically control the expansion and contraction of the hydraulic cylinder; when the first pressure sensor detects that the liquid pressure born by the surface of the water retaining panel is always higher than a set value in a period of time, the hydraulic cylinder controls the telescopic shaft to extend, so that the door leaf rotates to a vertical state to block flood, when the first pressure sensor detects that the liquid pressure born by the surface of the water retaining panel is always lower than the set value in a period of time, the hydraulic cylinder controls the telescopic shaft to shorten, and the door leaf rotates to a horizontal state and lodges in a road surface, is located on the same plane with the road surface and is connected with the road surface, and can serve as a channel for free passage of pedestrians and vehicles.
Further, the first pressure sensor adopts a sectional type to trigger the door leaf to lift, namely when the pressure value born by the first pressure sensor reaches a trigger value, the hydraulic cylinder controls the door leaf to rotate for a certain angle instead of being in a vertical state completely, because the angle of rotation of the door leaf is 90 degrees after the door leaf is completely lifted, when flood comes, the pressure value born by the first pressure sensor reaches the trigger value for the first time, the angle of rotation of the door leaf is 90/n degrees, and as the flood slowly rises, the pressure value born by the first pressure sensor reaches the trigger value for the second time, the angle of rotation of the door leaf is 2 x 90/n degrees, and so on until the door leaf rotates for 90 degrees to the vertical state, wherein n is an integer more than 3; because flood volume size is different when coming in every flood season, the door leaf is unnecessary all to be vertical state at every turn, adopts the mode that above-mentioned sectional type triggered door leaf risees, can save the actuating force of pneumatic cylinder, reduces the wearing and tearing of pneumatic cylinder telescopic shaft, simultaneously the staff accessible control the door leaf is sectional type to rise thereby the staff is convenient to the staff is overhauld each part of door leaf.
Further, a drying device is arranged between the water retaining panel and the back water panel and at the bottom of the box body, the drying device is electrically connected with a remote control system, and the drying device is a heating coil or a resistance wire; the drying device can be used for drying the door leaves, the hydraulic cylinder and other parts in the box body after the flood season is finished, so that the equipment parts are prevented from rusting.
Further, the one end that the back water panel kept away from the dead axle with the lateral wall top that the box kept away from the dead axle sets up flexible filter screen or manger plate cloth, filter screen or manger plate cloth in fore-and-aft direction with the box width equals, when the door leaf lodges the embedding road surface, filter screen or manger plate cloth is folded in the box, works as the door leaf rotates to vertical state and blocks the flood, filter screen or manger plate cloth is opened and covers the box completely to prevent debris such as rainwater, earth, grit, leaf from getting into the box and causing pollution or jam.
Further, two cavities are left and right in the door leaf, reinforcing devices are arranged in the two cavities respectively, each reinforcing device comprises a steel nail, a steel rope, a winding mechanism and an ejection mechanism, the middle section of each steel nail is fixedly connected with the steel rope, the tip of each steel nail is inclined towards the ground, each ejection mechanism comprises a compression cylinder and an air bag, each compression cylinder is connected with each air bag and is used for inflating the corresponding air bag, each air bag clings to the tail end of each steel nail and is used for ejecting the corresponding steel nail into the ground, each winding mechanism comprises a winding roller and a motor, each steel rope is wound on each winding roller, the tail end of each steel rope is fixed with the corresponding winding roller, a second pressure sensor is arranged at the position, which is one half of the distance from the water retaining panel of the door leaf to the ground, of each compression cylinder, and each second pressure sensor is electrically connected with a switch of each compression cylinder. When the liquid level of flood rises to half of the height of the door leaf, as the second pressure sensor receives flood pressure, each group of compression cylinders are automatically triggered to be started to rapidly inflate the air bags, the air bags pop up steel nails, the winding rollers automatically unwind, when the steel nails are shot into the ground for a certain distance, the steel ropes are fully released and straightened, the steel nails and the steel ropes firmly fix the door leaf, so that the stability of the door leaf is enhanced, and the door leaf is prevented from being flushed by flood; when the flood season is over, the staff can pull out the steel nails by using the tool, the winding roller motor drives the winding roller to wind up and reset the steel nails, and finally the staff fills the steel nail holes on the ground.
Further, set up the level detector between manger plate panel and the back water panel, level detector and remote control system electric connection for after the flood season is ended, the door leaf lodges and detects behind the embedding road surface the levelness of door leaf, thereby reflects the degree of agreeing with of door leaf and road surface, makes the staff know whether the highway section that the door leaf is located influences the normal traffic of pedestrian and vehicle, if the levelness is less than the setting value, then the staff accessible remote control system control pneumatic cylinder, thereby finely tunes the levelness of door leaf.
Further, an overhaul water stop cover plate is arranged between the bottom shaft fixing assembly and the side wall of the box body.
Further, rubber side water stop is arranged between the door leaves and the retaining walls on two sides.
Further, the remote control system comprises a record monitoring module, an abnormality alarming module, a data analysis module, a display module and a remote control module. The remote control system can monitor and record in real time, automatically alarm abnormality, intelligently manage and analyze the data of the platform, realize the joint debugging of the whole river basin, enable the facility to be more intelligent and promote the urban high-quality development.
Further, a fixed water stop is arranged on the side wall of one side of the box body, which is close to the bottom shaft, and is made of a water absorbing material with a certain thickness and equal to the width and the height of the door leaf, the fixed water stop is connected with the drainage ditch through the drainage pipe, when the door leaf is lifted to block flood, the fixed water stop can absorb and store a certain amount of rainwater, and the rainwater which cannot be stored is conveyed into the drainage ditch through the drainage pipe.
The beneficial effects of the invention are as follows:
according to the invention, the door leaf is driven to rotate around the bottom shaft by the hydraulic cylinder matched with the folding rod; in flood season, the door leaf can rotate to vertical state and be used for stopping flood, in non-flood season, the door leaf can rotate to the horizontality and link up with the road surface is parallel, does not influence pedestrian and vehicle free passage, has solved traditional flood control wall and has needed occupation space storage, transportation, installation and also very inconvenient technical problem. And the new construction only needs to add a small amount of basic structures during design, and the old construction only needs to excavate a small amount of pavement. The product is integrated equipment, an operation test is carried out before delivery, and the equipment can be operated after being qualified by installing a crane and debugging when arriving at the site.
The first pressure sensor is arranged on the lower side of the water retaining panel, so that the flood control wall can judge whether the flood season is coming according to the pressure born by the water retaining panel, the hydraulic cylinder is automatically started and the door leaf is driven to rotate to a vertical state for flood control when the flood season is coming, and the hydraulic cylinder is started again and the door leaf is driven to rotate to a horizontal state and be connected with a road surface in parallel after the flood season is finished, so that free passing of pedestrians and vehicles is not affected; through setting up drying device, can be after the flood season finishes, dry other spare parts in door leaf, pneumatic cylinder and the box, prevent that equipment spare part from rusting.
Through setting up door leaf reinforcing apparatus, when the liquid level of flood rises to the half height of door leaf, the second pressure sensor triggers the compression cylinder automatically and opens to aerify fast to the gasbag, and the gasbag pops out the steel nail and shoots into ground, and steel nail and steel rope are firmly fixed the door leaf for strengthen the steadiness of door leaf, prevent that it from being towards down by the flood.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosed subject matter, are incorporated in and constitute a part of this specification. The drawings also set forth implementations of the disclosed subject matter and, together with the detailed description, serve to explain the principles of the implementations of the disclosed subject matter.
FIG. 1 is a side view of the present invention in a raised condition of the door leaf;
FIG. 2 is a side view of the door leaf of the present invention in a lowered position;
FIG. 3 is a rear view of the present invention in a raised condition of the door leaf;
FIG. 4 is a schematic view of the door leaf steel nail of the present invention in a ground-penetrating condition;
the water stop device comprises a 1-box body, 2-door leaves, 3-water retaining panels, 4-back water panels, 5-bottom shafts, 6-hydraulic cylinders, 7-folding rods, 8-rotating seats, 9-support assemblies, 10-lug plates, 11-first pressure sensors, 12-cavities, 13-steel nails, 14-steel ropes, 15-compression cylinders, 16-air bags, 17-winding rollers, 18-second pressure sensors, 19-filter screens or water retaining cloths and 20-fixed water stops.
Detailed Description
The advantages, features and manner of attaining the stated objects of the invention will become apparent from the description to follow, and from the drawings.
Examples:
1-4, a lift drainage integrated device that hidden flood control wall was used, including box 1, door leaf 2 and drive assembly, its characterized in that: the box body 1 is arranged in a pit below the ground, the door leaf 2 and the driving assembly are positioned in the box body 1, the door leaf 2 comprises a water retaining panel 3 and a back water panel 4, one end of the door leaf 2 is fixedly connected with a bottom shaft 5, the bottom shaft 5 is rotationally connected to the side wall of the box body 1 through the bottom shaft fixing assembly, the driving assembly comprises a hydraulic cylinder 6 and a folding rod 7, the folding rod 7 is divided into a first section and a second section, the first section and the second section are rotationally connected through a rotating seat 8, the hydraulic cylinder 6 and the first section of the folding rod 7 are rotationally connected to a bottom plate of the box body 1 through a support assembly 9, a telescopic shaft of the hydraulic cylinder 6 and the second section of the folding rod 7 are rotationally connected with an ear plate 10 fixedly arranged in the middle of the back water panel 4, the hydraulic cylinder 6 is electrically connected with a remote control system, and the driving assembly is used for driving the door leaf 2 to rotationally rotate around the bottom shaft 5; in the flood season, the door leaf 2 can rotate to the vertical state and is used for blocking flood, in the non-flood season, the door leaf 2 can rotate to the horizontal state and is connected with the road surface in parallel, and free passing of pedestrians and vehicles is not affected.
A first pressure sensor 11 is arranged on the surface of the middle section of the water baffle panel, the first pressure sensor 11 is electrically connected with the hydraulic cylinder 6, and the first pressure sensor 11 is used for detecting the pressure born by the water baffle panel 3 so as to automatically control the expansion and contraction of the hydraulic cylinder 6; when the first pressure sensor 11 detects that the liquid pressure born by the surface of the water retaining panel 3 is always higher than a set value in a period of time, the hydraulic cylinder 6 controls the telescopic shaft to extend, so that the door leaf 2 rotates to a vertical state to block flood, when the first pressure sensor 11 detects that the liquid pressure born by the surface of the water retaining panel 3 is always lower than the set value in a period of time, the hydraulic cylinder 6 controls the telescopic shaft to shorten, and the door leaf 2 rotates to a horizontal state and lodges in a road surface, is positioned on the same plane with the road surface and is connected with the road surface, and can be used as a passage for free passage of pedestrians and vehicles.
The first pressure sensor 11 triggers the door leaf 2 to rise in a sectional manner, namely when the pressure value born by the first pressure sensor 11 reaches a trigger value, the hydraulic cylinder 6 controls the door leaf 2 to rotate by a certain angle instead of being in a completely vertical state, because the angle of rotation of the door leaf 2 after the door leaf is completely lifted is 90 degrees, when flood comes, the pressure value born by the first pressure sensor 11 reaches the trigger value for the first time, when the pressure value born by the hydraulic cylinder 6 controls the door leaf 2 to reach the trigger value for the first time, and as the flood slowly rises, the pressure value born by the first pressure sensor 11 reaches the trigger value for the second time, the pressure value born by the hydraulic cylinder 6 controls the door leaf 2 to rotate by 2 x 90/n degrees, and so on until the door leaf 2 rotates by 90 degrees to a vertical state, wherein n is an integer more than 3; because flood volume is different in time of every flood season, every time door leaf 2 is unnecessary to be vertical state, adopts the mode that above-mentioned sectional type triggered door leaf 2 risees, can save the actuating force of pneumatic cylinder 6, reduces the wearing and tearing of pneumatic cylinder telescopic shaft, simultaneously the staff accessible control door leaf 2 sectional type rises thereby makes things convenient for the staff to overhaul each part of door leaf 2.
A drying device is arranged between the water retaining panel 3 and the back water panel 4 and at the bottom of the box body 1, and is electrically connected with a remote control system, and the drying device is a heating coil or a resistance wire; the drying device can be used for drying the door leaves 2, the hydraulic cylinders 6 and other parts in the box body 1 after the flood season is finished, so that the equipment parts are prevented from rusting.
The back water panel 4 keep away from the one end of dead axle 5 with the lateral wall top that the box 1 kept away from the dead axle 5 sets up flexible filter screen or manger plate cloth 19, filter screen or manger plate cloth 19 in the fore-and-aft direction with box 1 width equals, when the door leaf 2 lodges the embedded road surface, filter screen or manger plate cloth 19 fold in box 1, works as when door leaf 2 rotates to vertical state and blocks the flood, filter screen or manger plate cloth 19 is opened and is covered box 1 completely to prevent debris such as rainwater, earth, grit, leaf from getting into box 1 and causing pollution or jam.
The inside of door leaf 2 sets up about two cavitys 12 set up reinforcing apparatus respectively about, reinforcing apparatus includes steel nail 13, steel rope 14, winding mechanism and ejection mechanism, the middle section fixed connection of steel nail 13 steel rope 14, the tip slope of steel nail 13 is towards ground, ejection mechanism includes compression cylinder 15 and gasbag 16, compression cylinder 15 connects gasbag 16 and is used for inflating for gasbag 16, gasbag 16 hugs closely steel nail 13 tail end and is used for ejecting steel nail 13 into ground, winding mechanism includes winding roller 17 and motor, steel rope 14 winds on winding roller 17 and steel rope 14 end and winding roller 17 are fixed the position of manger plate panel 3 from the half height on the ground sets up second pressure sensor 18, second pressure sensor 18 electric connection the switch of compression cylinder 15. When the liquid level of flood rises to half of the height of the door leaf 2, as the second pressure sensor 18 receives flood pressure, each group of compression cylinders 15 is automatically triggered to start to rapidly inflate the air bags 16, the air bags 16 eject the steel nails 13, the winding rollers 17 are automatically unreeled, when the steel nails 13 are shot into the ground for a certain distance, the steel ropes 14 are fully released and straightened, and the steel nails 13 and the steel ropes 14 firmly fix the door leaf 2, so that the stability of the door leaf 2 is enhanced and the door leaf 2 is prevented from being flushed by flood; when the flood season is over, the worker can pull out the steel nails 13 by using a tool, the winding roller motor drives the winding roller 17 to wind up and reset the steel nails, and finally the worker fills up steel nail holes on the ground.
Set up the level detector between manger plate panel 3 and the back water panel 4, level detector and remote control system electric connection for after the flood season is finished, detect behind the embedded road surface of door leaf 2 the levelness of door leaf 2 to reflect the degree of agreeing with on door leaf 2 and road surface, make the staff know whether the highway section that door leaf 2 is located influences the normal traffic of pedestrian and vehicle, if the levelness is less than the setting value, then the staff accessible remote control system control pneumatic cylinder 6, thereby finely tune the levelness of door leaf 2.
An overhaul water stop cover plate is arranged between the bottom shaft fixing assembly and the side wall of the box body 1.
Rubber side water stop is arranged between the door leaf 2 and the retaining walls on two sides.
The remote control system comprises a record monitoring module, an abnormality alarming module, a data analysis module, a display module and a remote control module. The remote control system can monitor and record in real time, automatically alarm abnormality, intelligently manage and analyze the data of the platform, realize the joint debugging of the whole river basin, enable the facility to be more intelligent and promote the urban high-quality development.
The side wall of one side of the box body 1, which is close to the bottom shaft 5, is provided with a fixed water stop 20, the fixed water stop 20 is made of a water absorbing material with a certain thickness and is equal to the width and the height of the door leaf 2, the fixed water stop 20 is connected with a drainage ditch through a drainage pipe, when the door leaf 2 is lifted to block flood, the fixed water stop 20 can absorb and store a certain amount of rainwater, and the rainwater which cannot be stored is conveyed into the drainage ditch through the drainage pipe.
The above description is merely of the preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present invention, and the changes or substitutions are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a lift drainage integrated device that hidden flood control wall was used, includes box, door leaf and drive assembly, its characterized in that: the box body is arranged in a pit below the ground, the door leaf and the driving assembly are positioned in the box body, the door leaf comprises a water retaining panel and a back water panel, one end of the door leaf is fixedly connected with a bottom shaft, the bottom shaft is rotationally connected to the side wall of the box body through the bottom shaft fixing assembly, the driving assembly comprises a hydraulic cylinder and a folding rod, the folding rod is divided into a first section and a second section, the first section and the second section are rotationally connected through a rotating seat, the hydraulic cylinder and the first section of the folding rod are rotationally connected to a bottom plate of the box body through a support assembly, a telescopic shaft of the hydraulic cylinder and the second section of the folding rod are rotationally connected with an ear plate fixedly arranged in the middle of the back water panel, the hydraulic cylinder is electrically connected with a remote control system, and the driving assembly is used for driving the door leaf to rotate around the bottom shaft; in flood season, the door leaf can rotate to vertical state and be used for stopping flood, in non-flood season, the door leaf can rotate to the horizontality and link up with the road surface is parallel, does not influence pedestrian and vehicle free passage.
2. The lifting and drainage integrated device for a hidden flood wall according to claim 1, wherein: the surface in manger plate panel middle section sets up first pressure sensor, first pressure sensor with pneumatic cylinder electric connection, first pressure sensor is used for detecting the pressure that manger plate panel bore thereby the telescopic shaft of automatic control pneumatic cylinder stretches out and draws back.
3. The lifting and drainage integrated device for a hidden flood wall according to claim 2, wherein: the first pressure sensor adopts sectional type to trigger the door leaf to rise, the angle of rotation is 90 degrees after the door leaf is completely risen, and when flood comes, the pressure value that first pressure sensor bore reaches the trigger value for the first time, the pneumatic cylinder control the angle of door leaf rotation is 90/n degrees, along with the flood slowly rises, the pressure value that first pressure sensor bore reaches the trigger value for the second time, the pneumatic cylinder control the angle of door leaf rotation is 2 x 90/n degrees, and so on, until the door leaf rotates 90 degrees to vertical state, wherein n is the integer more than 3.
4. The lifting and drainage integrated device for a hidden flood wall according to claim 1, wherein: and a drying device is arranged between the water retaining panel and the back water panel and at the bottom of the box body, the drying device is electrically connected with the remote control system, and the drying device is a heating coil or a resistance wire.
5. The lifting and drainage integrated device for a hidden flood control wall according to claim 1, wherein a flexible filter screen or water retaining cloth is arranged at one end of the back water panel far away from the bottom shaft and at the top end of the side wall of the box body far away from the bottom shaft, the filter screen or water retaining cloth is equal to the width of the box body in the front-back direction, when the door leaves are laid down and embedded into a road surface, the filter screen or water retaining cloth is folded in the box body, and when the door leaves are rotated to a vertical state and flood is blocked, the filter screen or water retaining cloth is opened and covers the box body completely.
6. The lifting and drainage integrated device for a hidden flood wall according to claim 1, wherein: an overhaul water stop cover plate is arranged between the bottom shaft fixing assembly and the side wall of the box body.
7. The lifting and drainage integrated device for a hidden flood wall according to claim 1, wherein: rubber side water stop is arranged between the door leaves and the retaining walls on two sides.
8. The lifting and drainage integrated device for a hidden flood wall according to claim 1, wherein: the remote control system comprises a record monitoring module, an abnormality alarming module, a data analysis module, a display module and a remote control module.
9. The lifting and drainage integrated device for a hidden flood wall according to claim 1, wherein: the side wall of one side of the box body, which is close to the bottom shaft, is provided with a fixed water stop, the fixed water stop is made of a water absorbing material with a certain thickness and is equal to the width and the height of the door leaf, and the fixed water stop is connected with a drainage ditch through a drainage pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310164558.2A CN116163265A (en) | 2023-02-25 | 2023-02-25 | Lifting and drainage integrated device for hidden flood control wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310164558.2A CN116163265A (en) | 2023-02-25 | 2023-02-25 | Lifting and drainage integrated device for hidden flood control wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116163265A true CN116163265A (en) | 2023-05-26 |
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ID=86421669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310164558.2A Pending CN116163265A (en) | 2023-02-25 | 2023-02-25 | Lifting and drainage integrated device for hidden flood control wall |
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| Country | Link |
|---|---|
| CN (1) | CN116163265A (en) |
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2023
- 2023-02-25 CN CN202310164558.2A patent/CN116163265A/en active Pending
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