CN118083559A - Cargo transportation device for narrow space - Google Patents
Cargo transportation device for narrow space Download PDFInfo
- Publication number
- CN118083559A CN118083559A CN202410225709.5A CN202410225709A CN118083559A CN 118083559 A CN118083559 A CN 118083559A CN 202410225709 A CN202410225709 A CN 202410225709A CN 118083559 A CN118083559 A CN 118083559A
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- rotation unit
- connecting arm
- power unit
- rotating wheel
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- 210000000078 claw Anatomy 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/902—Devices for picking-up and depositing articles or materials provided with drive systems incorporating rotary and rectilinear movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/244—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning them about an axis substantially perpendicular to the conveying plane
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The present invention relates to a cargo transportation device, and more particularly, to a cargo transportation device for a narrow space. Comprises a lifting workbench, a horizontal transfer structure and a clamping structure; the lifting workbench comprises a telescopic cylinder and a table top, and the telescopic cylinder is fixedly connected with the bottom of the table top; the top of the table top is provided with a horizontal transfer structure, the horizontal transfer structure comprises a first power unit, a main rotation unit, a connecting arm and a secondary rotation unit, the first power unit is fixedly connected with a support frame fixedly arranged at the top of the table top, the power unit drives the main rotation unit to synchronously rotate, the main rotation unit is fixedly connected with one end of the connecting arm, the other end of the connecting arm is fixedly connected with the secondary rotation unit, and the secondary rotation unit is rotationally connected with the clamping structure; the clamping structure comprises a mechanical claw, a connecting rod and a telescopic unit. The technical problem that synchronous transportation of cargoes in the horizontal direction and the vertical direction cannot be completed in a narrow space is solved.
Description
Technical Field
The present invention relates to a cargo transportation device, and more particularly, to a cargo transportation device for a narrow space.
Background
The cargo transportation needs a certain space to be completed, but in a narrow space, the synchronous transportation of the cargo in the horizontal direction and the vertical direction is difficult to be completed. In the prior art, the inclined conveyor belt is adopted to finish the process, but in a narrow space, the included angle between the rotary inclined conveyor belt and the ground is large, sufficient friction force cannot be provided for goods, and stable transportation of the goods is difficult to ensure. The synchronous transportation of goods in horizontal direction, vertical direction can also be realized to the conveyer belt that adopts the spiral, but the conveyer belt of spiral still has certain requirement to the space, probably can appear because of the space is too little, and the spiral diameter of the conveyer belt of spiral that leads to is too little, can appear the phenomenon that the goods jam or slope drop this moment.
Disclosure of Invention
The invention mainly aims to provide a cargo transportation device for a narrow space, which solves the technical problem that the cargo cannot be transported synchronously in the horizontal direction and the vertical direction in the narrow space.
In order to achieve the above object, the present invention provides a cargo transportation device in a narrow space, comprising a lifting table, a horizontal transfer structure and a clamping structure;
The lifting workbench comprises a telescopic cylinder and a table top, and the telescopic cylinder is fixedly connected with the bottom of the table top;
the top of the table top is provided with a horizontal transfer structure, the horizontal transfer structure comprises a first power unit, a main rotation unit, a connecting arm and a secondary rotation unit, the first power unit is fixedly connected with a support frame fixedly arranged at the top of the table top, the power unit drives the main rotation unit to synchronously rotate, the main rotation unit is fixedly connected with one end of the connecting arm, the other end of the connecting arm is fixedly connected with the secondary rotation unit, and the secondary rotation unit is rotationally connected with the clamping structure;
The clamping structure comprises a mechanical claw, a connecting rod and a telescopic unit, wherein the telescopic unit is fixedly connected with the top of the follow-up rotating unit, the telescopic unit is rotationally connected with one end of the connecting rod, and the other end of the connecting rod is fixedly connected with the mechanical claw.
As a preferable scheme, the device also comprises a direction adjusting unit, wherein the direction adjusting unit comprises a second power unit, a first rotating wheel, a transmission unit and a second rotating wheel;
the second power unit is fixedly connected with the bottom of the table top, the second power unit is synchronously connected with the first rotating wheel in a rotating way, and the first rotating wheel drives the second rotating wheel to rotate through the transmission unit.
As a preferred scheme, the through hole is formed in the middle of the second rotating wheel, the connecting rod is arranged in the through hole, the through hole and the connecting rod are both provided with limit structures matched with each other for use, and the second rotating wheel drives the connecting rod to synchronously rotate.
As a preferable scheme, the main rotation unit comprises a first main rotation unit and a second main rotation unit, wherein the first main rotation unit is connected with the output end of the first power unit, and the first main rotation unit and the second main rotation unit are respectively arranged on two sides of the first rotation wheel.
As a preferable scheme, the connecting arm comprises a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm are respectively fixedly connected with the first main rotating unit and the second main rotating unit, and a connecting plate is fixedly arranged between the first connecting arm and the second connecting arm.
As a preferable scheme, the secondary rotation unit comprises a first secondary rotation unit and a second secondary rotation unit, the first secondary rotation unit and the second secondary rotation unit are respectively and fixedly connected with the first connecting arm and the second connecting arm, and the first secondary rotation unit and the second secondary rotation unit are respectively arranged on two sides of the second rotation wheel.
As a preferable scheme, the second power unit is provided with an output shaft, the output shaft of the second power unit penetrates through the table top, the output shaft of the second power unit is inserted into the output end of the first power unit, the output shaft of the second power unit is sleeved with the first driving unit and the second driving unit, the output shaft of the second power unit is also sleeved with the first rotating wheel, a limiting structure is arranged at the joint of the output shaft of the second power unit and the first rotating wheel, and the output shaft of the second power unit drives the first rotating wheel to synchronously rotate.
As a preferable scheme, the device also comprises a pressure device, wherein the pressure device is detachably connected with the first connecting arm and comprises a supporting vertical plate, a supporting transverse plate and a pressing code;
The support riser is connected with one side of first linking arm can be dismantled, and the constant head tank has been seted up at first linking arm top, is equipped with the support diaphragm in the constant head tank, and the part of support diaphragm extends out from the constant head tank, and the through-hole has been seted up to the part that the support diaphragm extends out, and the through-hole interpolation is equipped with the connecting rod of pressing the sign indicating number, presses the sign indicating number to be connected with the drive unit.
As a preferable scheme, a screw rod is arranged between the supporting vertical plate and the supporting transverse plate, and the screw rod is respectively in threaded connection with the supporting vertical plate and the supporting transverse plate.
The beneficial effects obtained by the invention are as follows:
1. The lifting workbench and the lifting clamping structure are adopted, so that goods can be stably and rapidly transported in the vertical direction, and the horizontal transport structure is also arranged, so that the goods can be transported in the horizontal direction.
2. The invention also provides a direction adjusting unit, which adjusts the direction of the mechanical claw through rotating the connecting rod, so as to adjust the direction of the goods, and the direction of the transported goods can be adjusted before unloading, thereby meeting the transportation operation with the requirement of the direction of the goods.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a cargo transportation device in a confined space according to an embodiment of the present invention;
fig. 2 is a front view of a cargo transferring device in a narrow space according to an embodiment of the present invention;
FIG. 3 is a left side view of a cargo transferring device in a confined space according to an embodiment of the present invention;
FIG. 4 is a schematic view of a cargo transportation device in a confined space according to an embodiment of the present invention;
Fig. 5 is a schematic connection diagram of a main rotating unit, a connection arm and a slave rotating unit of a cargo transferring device in a narrow space according to an embodiment of the present invention.
Reference numerals illustrate:
1. Lifting the workbench; 11. a telescopic cylinder; 12. a table top; 2. a horizontal transfer structure; 21. a first power unit; 22. a main rotation unit; 221. a first main rotation unit; 222. a second main rotation unit; 23. a connecting arm; 231. a first connecting arm; 232. a second connecting arm; 24. a slave rotation unit; 241. a first slave rotation unit; 242. a second slave rotation unit; 25. a support frame; 3. a clamping structure; 31. a mechanical claw; 32. a connecting rod; 33. a telescoping unit; 4. a direction adjustment unit; 41. a second power unit; 42. a first rotating wheel; 43. a transmission unit; 44. a second rotating wheel; 5. a pressure device; 51. a supporting vertical plate; 52. a supporting cross plate; 53. pressing codes; 6. a first conveyor belt; 7. a second conveyor belt; 8. a threaded hole; 9. and a limiting ring.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 to 4, the present invention discloses a cargo transportation device for a narrow space, comprising a lifting table 1, a horizontal transfer structure 2 and a clamping structure 3. The lifting workbench 1 comprises four telescopic cylinders 11 and a table top 12, and as an implementation mode, the number of the telescopic cylinders 11 is four, the four telescopic cylinders 11 are symmetrically distributed and synchronously move in a telescopic mode, and the four telescopic cylinders 11 are fixedly connected with the bottom of the table top 12, so that the height of the table top 12 is adjustable.
The top of the table top 12 is provided with a horizontal transfer structure 2, and in particular, the horizontal transfer structure 2 comprises a first power unit 21, a main rotation unit 22, a connecting arm 23 and a secondary rotation unit 24. The first power unit 21 may be a motor, in this case, the top of the table top 12 is fixedly provided with a support frame 25, and the top surface of the support frame 25 is fixedly connected with the first power unit 21, where the output end of the first power unit 21 passes through the support frame 25 and extends below the support frame 25. As an implementation manner, as shown in fig. 5, the main rotation unit 22 is in a flat cube structure, the top of the main rotation unit 22 is provided with a threaded hole 8, and the output end of the first power unit 21 is detachably connected with the main rotation unit 22 through a bolt; a through hole is formed in the middle of the main rotating unit 22, and a limiting ring 9 is arranged on the inner side wall of the through hole. One side wall of the main rotating unit 22 is fixedly connected with one end of the connecting arm 23, the main rotating unit 22 can drive the connecting arm 23 to rotate in the horizontal direction, the other end of the connecting arm 23 is fixedly connected with the auxiliary rotating unit 24, and the auxiliary rotating unit 24 has the same structure as the main rotating unit 22, and the difference is that the size of the auxiliary rotating unit 24 is smaller than that of the main rotating unit 22.
From rotating unit 24 and clamp structure 3 rotation connection, specifically, clamp structure 3 includes gripper 31, connecting rod 32 and flexible unit 33, flexible unit 33 can be cylinder or pneumatic cylinder, flexible unit 33 fixed connection is at the top from rotating unit 24, flexible unit 33 rotates with the one end of connecting rod 32 to be connected, as a mode of rotating the connection, flexible unit 33 cover is established in the outside of connecting rod 32, flexible unit 33 extends to connecting rod 32 direction has the lug, annular spacing groove has been seted up to connecting rod 32 and flexible unit 33 junction, the lug sets up in annular spacing inslot, thereby realize that flexible unit 33 can drive connecting rod 32 motion, simultaneously connecting rod 32 can also slide independently of flexible unit 33. The other end of the connecting rod 32 is fixedly connected with the gripper 31, the gripper 31 can grasp and put down goods, and the gripper 31 is in the prior art and will not be described herein.
In the process of transporting goods, in order to facilitate the monitoring and inspection of the goods, certain requirements are also placed on the orientation of the goods in some transportation operations. It is thus also possible to provide the device with a direction adjustment unit 4, the direction adjustment unit 4 comprising a second power unit 41, a first rotating wheel 42, a transmission unit 43 and a second rotating wheel 44. The second power unit 41 may be a motor, and as an implementation manner, the second power unit 41 may be fixedly disposed at the bottom of the table top 12, at this time, an output shaft of the second power unit 41 passes through the table top 12 and extends to above the table top 12, at this time, an output shaft of the second power unit 41 may be inserted into a through hole of the main rotation unit 22 and is clamped in the limiting ring 9, but the two may not affect respective rotation, and the structure of the main rotation unit 22 may ensure that the main rotation unit 22 and the first power unit 21 rotate synchronously, and may also realize rotation connection of the main rotation unit 22 and the second power unit 41, so that the whole device is connected as to be an integral body, improve internal stability, and improve lifting capability. The output shaft of the second power unit 41 can drive the first rotating wheel 42 to rotate synchronously, and the connection mode of the second power unit 41 and the first rotating wheel 42 can be any one of the prior art, and only the synchronous rotation of the second power unit 41 and the first rotating wheel 42 is required to be maintained, which is not repeated here.
The first rotating wheel 42 drives the second rotating wheel 44 to rotate through the transmission unit 43, specifically, the transmission unit 43 may be one of a belt and a chain, and the transmission unit 43 is sleeved outside the first rotating wheel 42 and the second rotating wheel 44. The middle part of the second rotating wheel 44 is provided with a through hole, the connecting rod 32 is inserted in the through hole, the through hole and the connecting rod 32 are both provided with limit structures matched with each other, and the limit structures can be limit convex plates extending from the side walls of the through hole and limit grooves formed on the rod body of the connecting rod 32. Thereby, the second rotating wheel 44 drives the connecting rod 32 to synchronously rotate.
In order to prevent malfunction of the horizontal transfer structure 2 due to excessive weight of the cargo during transportation of the cargo, the main rotation unit 22 may include a first main rotation unit 221 and a second main rotation unit 222, and the first main rotation unit 221 and the second main rotation unit 222 may have the same structure. At this time, the first main rotation unit 221 is connected to the output end of the first power unit 21, the first main rotation unit 221 and the second main rotation unit 222 are respectively disposed at two sides of the first rotation wheel 42, and both are sleeved on the outer side of the output shaft of the second power unit 41. The first main rotation unit 221 and the second main rotation unit 222 are respectively connected with a first connection arm 231 and a second connection arm 232, the first connection arm 231 and the second connection arm 232 are respectively connected with a first auxiliary rotation unit 241 and a second auxiliary rotation unit 242, the first auxiliary rotation unit 241 and the second auxiliary rotation unit 242 are respectively arranged at two sides of the second rotation wheel 44, and a connection plate is fixedly arranged between the first connection arm 231 and the second connection arm 232 at this time, so that the first connection arm 231 and the second connection arm 232 are integrated. It should be noted that, at this time, the second main rotation unit 222 may directly provide power by the first power unit 21, or may not provide power by the first power unit 21.
In order to increase the operational stability of the first rotating wheel 42, the transmission unit 43 and the second rotating wheel 44, a pressure device 5 may also be provided. The pressing device 5 is detachably connected with the first connecting arm 231, and the pressing device 5 includes a support vertical plate 51, a support horizontal plate 52, and a pressing code 53. The supporting vertical plate 51 is detachably connected with one side wall of the first connecting arm 231, a positioning groove is formed in the top of the first connecting arm 231, a supporting transverse plate 52 is slidably installed in the positioning groove, a part of the supporting transverse plate 52 extends out of the positioning groove, a through hole is formed in the extending part of the supporting transverse plate 52, a connecting column for pressing the code 53 is inserted into the through hole, the connecting column can fix the code 53 on the supporting transverse plate 52, and the code 53 is connected with the transmission unit 43. At this time, the pressing code 53 can press the transmission unit 43, thereby ensuring that the transmission unit 43 maintains stability with the first rotating wheel 42 and the second rotating wheel 44 without relative sliding.
For more convenient adjustment of the position of the pressing code 53, a screw rod can be further arranged between the supporting vertical plate 51 and the supporting transverse plate 52, and the screw rod is in threaded connection with the supporting vertical plate 51 and the supporting transverse plate 52 respectively.
Taking fig. 1 and 4 as an example, in use, the goods are transported on the first conveyor belt 6, the direction of transportation of the goods is required to be changed when the goods are transported to the end of the first conveyor belt 6, and the transport height of the goods is increased, the gripper 31 picks up the goods when the goods are identified, and the telescopic cylinder 11 and the telescopic unit 33 are both extended, so that the height of the goods in the vertical direction is increased. At this time, the first power unit 21 rotates to drive the main rotation unit 22 to rotate, the main rotation unit 22 drives the connection arm 23 to rotate, and the connection arm 23 drives the auxiliary rotation unit 24 to rotate, thereby driving the goods to move in the horizontal direction. When the direction of the goods needs to be adjusted, the second power unit 41 is started, the second power unit 41 drives the first rotating wheel 42 to rotate, the first rotating wheel 42 drives the transmission unit 43 to rotate, the transmission unit 43 drives the second rotating wheel 44 to rotate, and the second rotating wheel 44 drives the connecting rod 32 to rotate, so that the goods are driven to rotate, the direction of the goods is adjusted, and the goods are located at a proper position in front of the second conveyor belt 7.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (9)
1. A cargo transportation device for a narrow space, which is characterized by comprising a lifting workbench (1), a horizontal transferring structure (2) and a clamping structure (3);
the lifting workbench (1) comprises a telescopic cylinder (11) and a table top (12), and the telescopic cylinder (11) is fixedly connected with the bottom of the table top (12);
The top of the table top (12) is provided with the horizontal transfer structure (2), the horizontal transfer structure (2) comprises a first power unit (21), a main rotation unit (22), a connecting arm (23) and a secondary rotation unit (24), the first power unit (21) is fixedly connected with a support frame (25) fixedly arranged at the top of the table top (12), the power unit (21) drives the main rotation unit (22) to synchronously rotate, the main rotation unit (22) is fixedly connected with one end of the connecting arm (23), the other end of the connecting arm (23) is fixedly connected with the secondary rotation unit (24), and the secondary rotation unit (24) is rotationally connected with the clamping structure (3);
The clamping structure (3) comprises a mechanical claw (31), a connecting rod (32) and a telescopic unit (33), wherein the telescopic unit (33) is fixedly connected with the top of the secondary rotation unit (24), the telescopic unit (33) is rotatably connected with one end of the connecting rod (32), and the other end of the connecting rod (32) is fixedly connected with the mechanical claw (31).
2. A cargo transferring device for a confined space according to claim 1, further comprising a direction adjustment unit (4), the direction adjustment unit (4) comprising a second power unit (41), a first rotating wheel (42), a transmission unit (43) and a second rotating wheel (44);
The second power unit (41) is fixedly connected with the bottom of the table top (12), the second power unit (41) is synchronously connected with the first rotating wheel (42) in a rotating way, and the first rotating wheel (42) drives the second rotating wheel (44) to rotate through the transmission unit (43).
3. The cargo transportation device for a narrow space according to claim 2, wherein a through hole is formed in the middle of the second rotating wheel (44), the connecting rod (32) is arranged in the through hole, the through hole and the connecting rod (32) are both provided with limit structures matched with each other, and the second rotating wheel (44) drives the connecting rod (32) to synchronously rotate.
4. A cargo transportation device for a narrow space according to claim 3, wherein the main rotation unit (22) comprises a first main rotation unit (221) and a second main rotation unit (222), the first main rotation unit (221) is connected to the output end of the first power unit (21), and the first main rotation unit (221) and the second main rotation unit (222) are respectively provided at both sides of the first rotation wheel (42).
5. The cargo transportation device for a narrow space according to claim 4, wherein the connecting arm (23) comprises a first connecting arm (231) and a second connecting arm (232), the first connecting arm (231) and the second connecting arm (232) are respectively and fixedly connected with the first main rotating unit (221) and the second main rotating unit (222), and a connecting plate is fixedly arranged between the first connecting arm (231) and the second connecting arm (232).
6. The cargo transportation device for a narrow space according to claim 5, wherein the secondary rotation unit (24) comprises a first secondary rotation unit (241) and a second secondary rotation unit (242), the first secondary rotation unit (241) and the second secondary rotation unit (242) are fixedly connected with the first connecting arm (231) and the second connecting arm (232), respectively, and the first secondary rotation unit (241) and the second secondary rotation unit (242) are respectively arranged at two sides of the second rotation wheel (44).
7. The cargo transportation device for a narrow space according to claim 6, wherein the second power unit (41) is provided with an output shaft, the output shaft of the second power unit (41) passes through the table top (12), the output shaft of the second power unit (41) is inserted into the output end of the first power unit (21), the output shaft of the second power unit (41) is further sleeved with the first rotating wheel (42), and a limiting structure is arranged at the joint of the output shaft of the second power unit (41) and the first rotating wheel (42), and the output shaft of the second power unit (41) drives the first rotating wheel (42) to synchronously rotate.
8. A cargo transferring device for confined spaces according to claim 7, further comprising a pressure device (5), said pressure device (5) being detachably connected to said first connecting arm (231), said pressure device (5) comprising a supporting riser (51), a supporting cross plate (52) and a compression bar (53);
The utility model discloses a support vertical plate (51) with be connected can be dismantled to one side of first linking arm (231), the constant head tank has been seted up at first linking arm (231) top, be equipped with in the constant head tank and support diaphragm (52), support diaphragm (52) a part follow extend in the constant head tank and go out, support diaphragm (52) extend and go out the part and seted up the through-hole, the through-hole interpolation is equipped with press the spliced pole of sign indicating number (53), press sign indicating number (53) with drive unit (43) are connected.
9. The cargo transportation device for a narrow space according to claim 8, wherein a screw is provided between the support riser (51) and the support cross plate (52), and the screw is screwed with the support riser (51) and the support cross plate (52), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410225709.5A CN118083559A (en) | 2024-02-29 | 2024-02-29 | Cargo transportation device for narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410225709.5A CN118083559A (en) | 2024-02-29 | 2024-02-29 | Cargo transportation device for narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118083559A true CN118083559A (en) | 2024-05-28 |
Family
ID=91161055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410225709.5A Pending CN118083559A (en) | 2024-02-29 | 2024-02-29 | Cargo transportation device for narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118083559A (en) |
-
2024
- 2024-02-29 CN CN202410225709.5A patent/CN118083559A/en active Pending
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