CN116491291A - Orchard double-cutter mowing executing mechanism - Google Patents

Orchard double-cutter mowing executing mechanism Download PDF

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Publication number
CN116491291A
CN116491291A CN202310603054.6A CN202310603054A CN116491291A CN 116491291 A CN116491291 A CN 116491291A CN 202310603054 A CN202310603054 A CN 202310603054A CN 116491291 A CN116491291 A CN 116491291A
Authority
CN
China
Prior art keywords
auxiliary
mounting frame
hinged
mowing
angle adjusting
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
Application number
CN202310603054.6A
Other languages
Chinese (zh)
Inventor
罗强
粟生强
崔灿
李维一
韩彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Three Gorges University
Original Assignee
Chongqing Three Gorges University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Three Gorges University filed Critical Chongqing Three Gorges University
Priority to CN202310603054.6A priority Critical patent/CN116491291A/en
Publication of CN116491291A publication Critical patent/CN116491291A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A01D34/66—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/74—Cutting-height adjustment
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/82—Other details
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

The invention discloses a double-cutter mowing executing mechanism for an orchard, and mainly relates to the technical field of mowers; the mower comprises a mower frame provided with a crawler-type travelling mechanism, wherein a mechanical arm is arranged at the front end of the mower frame, a main mounting frame is arranged at the front end of the mechanical arm, the main mounting frame is hinged with the mechanical arm, an angle adjusting device is arranged between the main mounting frame and the mechanical arm, an auxiliary mounting frame is arranged on one side of the main mounting frame, an auxiliary rotating arm is arranged between the auxiliary mounting frame and the main mounting frame, an auxiliary horizontal angle adjusting device is arranged between the auxiliary mounting frame and the main mounting frame, an auxiliary vertical angle adjusting device is arranged between the auxiliary mounting frame and the auxiliary rotating arm, and the rear end of the mechanical arm is rotationally connected with the mower frame; the invention can be convenient for adjusting the ground clearance, is suitable for mowing work of various terrains, can effectively avoid obstacles such as trunks, achieves the effect of cleaning the mixed grass between lines and plants at the same time, and can be applied to cleaning weeds on inclined ground.

Description

Orchard double-cutter mowing executing mechanism
Technical Field
The invention relates to the technical field of mowers, in particular to a double-cutter mowing executing mechanism for an orchard.
Background
At present, most fruit trees in an orchard are planted according to a certain row spacing and a certain plant spacing, more weeds can grow between rows and plants, and the weeds need to be removed timely; in addition, when the existing mower is used for simultaneously removing weeds between rows and plants, obstacles such as fruit trees are difficult to avoid, so that mowing efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides the orchard double-cutter mowing actuating mechanism which can be convenient to adjust the ground clearance, is suitable for mowing work of various terrains, can effectively avoid obstacles such as trunks, achieves the effect of cleaning mixed grass between rows and between plants simultaneously, and can be applied to cleaning weeds on inclined ground.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
the utility model provides an orchard double knives cuts grass actuating mechanism, includes the lawn mower frame of installing crawler-type running gear, the front end of lawn mower frame is equipped with the arm, the front end of arm is equipped with main mounting bracket, main mounting bracket is articulated with the arm, and is equipped with angle adjusting device between main mounting bracket and arm, adjusts the contained angle between main mounting bracket and the arm through angle adjusting device, the bottom of main mounting bracket is equipped with main grass cutting actuating device one side of main mounting bracket is equipped with auxiliary mounting bracket, be equipped with auxiliary rotating arm between auxiliary mounting bracket and the main mounting bracket, auxiliary rotating arm's one end is articulated with auxiliary mounting bracket through horizontal articulated shaft, and the other end is articulated with main mounting bracket through vertical articulated shaft, be equipped with auxiliary horizontal angle adjusting device between auxiliary mounting bracket and the auxiliary rotating arm auxiliary vertical angle adjusting device, auxiliary mounting bracket's bottom is equipped with auxiliary grass cutting actuating device, the rear end and the lawn mower frame rotate to be connected, and be equipped with in the lawn mower frame and be used for driving the arm round vertical axle pivoted drive arrangement.
Preferably, the mechanical arm is rotationally connected with the mower frame through a toothless rotary support bearing, a rotary mounting frame for mounting the toothless rotary support bearing is arranged on the mower frame, the driving device is an electric push rod arranged on the rotary mounting frame, one end of the driving device is hinged with the rotary mounting frame, and the other end of the driving device is hinged with the mechanical arm.
Preferably, the mechanical arm comprises a first support arm hinged with the main installation frame, one end of the angle adjusting device is hinged with the main installation frame, the other end of the angle adjusting device is hinged with the first support arm, one end of the first support arm, which is far away from the main installation frame, is hinged with a second support arm, a first telescopic device is arranged between the second support arm and the first support arm, one end of the first telescopic device is hinged with the second support arm, the other end of the first telescopic device is hinged with the first support arm, one end of the second support arm, which is far away from the first support arm, is hinged with a base, a second telescopic device is arranged between the base and the second support arm, one end of the second telescopic device is hinged with the base, and the other end of the second telescopic device is hinged with the second support arm.
Preferably, an auxiliary mounting seat for mounting an auxiliary vertical angle adjusting device is arranged at the top of the auxiliary rotating arm.
Preferably, the angle adjusting device, the auxiliary horizontal angle adjusting device and the auxiliary vertical angle adjusting device are all electric push rods.
Preferably, the main mowing executing device and the auxiliary mowing executing device comprise a mowing motor and mowing blades arranged on the mowing motor.
Compared with the prior art, the invention has the beneficial effects that:
1. in order to solve the problem that the weeding machine can adjust the stubble height of weeds in real time in orchard work, the invention adopts the mechanical arm to adjust the ground clearance of the main mowing executing device and the auxiliary mowing executing device, and simultaneously, the angle adjusting device is matched for use to enable the mowing blade to be always parallel to the ground, so that the effect of adjustable stubble height of weeds is achieved.
2. In order to solve the problem that inter-row and inter-plant weed can be cleaned simultaneously, in the weeding working process, obstacles such as trunks of fruit trees are avoided, the main mowing executing device is used for cleaning inter-row weed, the auxiliary mowing executing device is used for cleaning inter-plant weed, the driving device is used for providing rotary power to enable the main mowing executing device and the auxiliary mowing executing device to rotate around the axis of the toothless rotary support bearing in the 90-degree angle range to avoid the obstacles such as trunks, and the effect of cleaning inter-row and inter-plant weed simultaneously is achieved.
3. In order to solve the problem of cleaning weeds on a shorter inclined plane, the invention is matched with the auxiliary vertical angle adjusting device, the auxiliary horizontal angle adjusting device, the auxiliary mowing executing device and the like to enable the mowing blade to be always parallel to the inclined plane so as to cut off the weeds on the inclined plane.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic view of a mechanical arm;
FIG. 5 is one of the schematic structural views of the mowing actuator;
FIG. 6 is a second schematic view of a mowing actuator.
The reference numbers in the drawings:
1. a crawler-type travelling mechanism; 2. a mower frame; 21. a driving device; 22. toothless slewing bearing; 23. a rotary mounting frame; 3. a mechanical arm; 31. a first support arm; 32. a second support arm; 33. a first telescopic device; 34. a base; 35. a second telescopic device; 4. a main mounting rack; 41. a main mowing executing device; 5. an angle adjusting device; 6. an auxiliary mounting rack; 61. an auxiliary mowing executing device; 7. an auxiliary rotating arm; 71. an auxiliary mounting seat; 8. an auxiliary horizontal angle adjusting device; 9. an auxiliary vertical angle adjusting device.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.
Examples: as shown in fig. 1-6, the invention discloses an orchard double-cutter mowing executing mechanism, which comprises a mower frame 2 provided with a crawler-type travelling mechanism 1, wherein an electric control system mounting box is arranged above the middle part of the mower frame 2, and the crawler-type travelling mechanism 1 comprises driving gear motors respectively arranged at two sides above the right end of the crawler-type travelling mechanism 1; one side of the driving gear motor is provided with a motor power output shaft, one end of the motor power output shaft is provided with a driving gear, the left side below the driving gear is provided with a thrust wheel, and the left side above the thrust wheel is provided with a tensioning wheel; the right side of take-up pulley is provided with adjustment mechanism, the excircle profile department of take-up pulley is provided with the track.
The front end of the mower frame 2 is provided with a mechanical arm 3, the front end of the mechanical arm 3 is provided with a main mounting frame 4, the main mounting frame 4 is hinged with the mechanical arm 3, an angle adjusting device 5 is arranged between the main mounting frame 4 and the mechanical arm 3, an included angle between the main mounting frame 4 and the mechanical arm 3 is adjusted through the angle adjusting device 5, the angle adjusting device 5 is preferably an electric push rod, one end of the angle adjusting device 5 is hinged with the main mounting frame 4, and the other end of the angle adjusting device 5 is hinged with the mechanical arm 3.
Preferably, the mechanical arm 3 includes a first support arm 31 hinged to the main mounting frame 4, one end of the angle adjusting device 5 is hinged to the main mounting frame 4, the other end is hinged to the first support arm 31, one end of the first support arm 31 away from the main mounting frame 4 is hinged to a second support arm 32, a first telescopic device 33 is arranged between the second support arm 32 and the first support arm 31, one end of the first telescopic device 33 is hinged to the second support arm 32, the other end is hinged to the first support arm 31, one end of the second support arm 32 away from the first support arm 31 is hinged to a base 34, a second telescopic device 35 is arranged between the base 34 and the second support arm 32, one end of the second telescopic device 35 is hinged to the base 34, the other end is hinged to the second support arm 32, and the first telescopic device 33 and the second telescopic device 35 can be an electric push rod or a hydraulic rod.
The bottom of main mounting bracket 4 is equipped with main execution device 41 of mowing one side of main mounting bracket 4 is equipped with auxiliary mounting bracket 6, be equipped with supplementary rotating arm 7 between auxiliary mounting bracket 6 and the main mounting bracket 4, the one end of supplementary rotating arm 7 is articulated with auxiliary mounting bracket 6 through the horizontal articulated shaft, and the other end is articulated with main mounting bracket 4 through vertical articulated shaft, be equipped with supplementary horizontal angle adjusting device 8 between auxiliary mounting bracket 6 and the main mounting bracket 4, supplementary horizontal angle adjusting device 8 can adopt electric putter or hydraulic stem, and the one end of supplementary horizontal angle adjusting device 8 is articulated with auxiliary mounting bracket 6, and the other end is articulated with main mounting bracket 4.
An auxiliary vertical angle adjusting device 9 is arranged between the auxiliary mounting frame 6 and the auxiliary rotating arm 7, the auxiliary vertical angle adjusting device 9 can adopt an electric push rod or a hydraulic rod, one end of the auxiliary vertical angle adjusting device 9 is hinged with the auxiliary mounting frame 6, and the other end of the auxiliary vertical angle adjusting device is hinged with the auxiliary rotating arm 7.
Preferably, in order to facilitate the installation of the auxiliary vertical angle adjusting device, an auxiliary installation seat 71 for installing the auxiliary vertical angle adjusting device 9 is arranged at the top of the auxiliary rotating arm 7, and the auxiliary installation seat 71 can be directly welded on the auxiliary rotating arm 7 or can be fixed on the auxiliary rotating arm 7 through bolts.
The bottom of the auxiliary mounting frame 6 is provided with an auxiliary mowing executing device 61, the rear end of the mechanical arm 3 is rotatably connected with the mower frame 2, and the mower frame 2 is provided with a driving device 21 for driving the mechanical arm 3 to rotate around a vertical shaft.
Preferably, in order to improve the smoothness of the rotation of the mechanical arm, the mechanical arm 3 is rotationally connected with the mower frame 2 through a toothless rotary support bearing 22, a rotary mounting frame 23 for mounting the toothless rotary support bearing 22 is arranged on the mower frame 2, the driving device 21 is an electric push rod arranged on the rotary mounting frame 23, one end of the driving device 21 is hinged with the rotary mounting frame 23, and the other end of the driving device 21 is hinged with the mechanical arm 3.
Preferably, the main mowing executing device 41 and the auxiliary mowing executing device 61 each comprise a mowing motor and a mowing blade mounted on the mowing motor, and the mowing blade is mounted on a motor output shaft of the mowing motor through a flange nut.
The application flow of the invention is as follows:
1) The position of the tensioning wheel is regulated by the regulating mechanism, so that the tightness degree of the crawler belt is controlled, and the crawler belt can be conveniently and rapidly installed or detached;
2) The speed difference and the rotating speed direction of the driving gear motors at two sides of the mower frame 2 are regulated, so that the whole mower can move forwards and backwards and turn;
3) The mowing motor arranged in the main mowing executing device 41 and the auxiliary mowing executing device 61 drives the mowing blade to rotate, so that the weed cutting effect is realized;
4) When the grass cutting motor does not work during weeding, the driving device 21, the second telescopic device 35 and the first telescopic device 33 are in an extending state, the whole main grass cutting executing device 41 is suspended from the ground, the grass cutting blades are parallel to the ground, the auxiliary vertical angle adjusting device 9 is in a contracting state, and the auxiliary grass cutting executing device 61 and the main grass cutting executing device 41 form an included angle of 90 degrees.
5) When in weeding operation, the mowing motor independently works, the second telescopic device 35 and the first telescopic device 33 retract, the first supporting arm 31 and the second supporting arm 32 perform descending actions, and the main mowing executing device 41 descends to a proper position from the ground; simultaneously, the angle adjusting device 5 stretches out to adjust the posture of the main mowing executing device 41, so that the mowing blade is parallel to the ground plane; the auxiliary vertical angle adjusting device 9 and the auxiliary horizontal angle adjusting device 8 work cooperatively to adjust the gesture of the auxiliary mowing executing device 61, so as to adapt to the conditions of flat land and lower inclined plane inclination for auxiliary weeding; the driving device 21 operates to cause the main mowing actuator 41 to avoid the fruit trees and to perform inter-plant and inter-row weeding.
6) The main mowing actuator 41 is operated to rotate the base 34, and thereby the whole mechanical arm 3 and the weeding device mechanism rotate in a horizontal plane with the axis of the toothless rotary support bearing 22 as the rotation center, and weed is cleaned while avoiding the trunk of the fruit tree.
7) The second telescopic device 35 and the first telescopic device 33 cooperate to act, so that the tail end of the first supporting arm 31 descends, the main mowing executing device 41 descends in a following way, and the weed stubble height is adjusted according to the working condition requirement; the angle adjusting device 5 acts to adjust the posture of the main mowing executing device 41, so that the mowing blade is always parallel to the ground to better finish mowing.
8) The included angle between the main mowing executing device 41 and the auxiliary mowing executing device 61 in the vertical plane is adjusted according to the working condition to perform weeding on the flat land and the inclined plane; the auxiliary horizontal angle adjusting device 8 can be extended and retracted to change the relative positions of the main mowing actuator 41 and the auxiliary mowing actuator 61, and adjust the size of the cutting pair to perform weeding in a narrow area.

Claims (6)

1. The utility model provides an orchard double knives grass execution mechanism, includes lawn mower frame (2) of installing crawler-type running gear (1), its characterized in that: the front end of the mower frame (2) is provided with a mechanical arm (3), the front end of the mechanical arm (3) is provided with a main mounting frame (4), the main mounting frame (4) is hinged with the mechanical arm (3), an angle adjusting device (5) is arranged between the main mounting frame (4) and the mechanical arm (3), an included angle between the main mounting frame (4) and the mechanical arm (3) is adjusted through the angle adjusting device (5), the bottom of the main mounting frame (4) is provided with a main mowing executing device (41), one side of the main mounting frame (4) is provided with an auxiliary mounting frame (6), an auxiliary rotating arm (7) is arranged between the auxiliary mounting frame (6) and the main mounting frame (4), one end of the auxiliary rotating arm (7) is hinged with the auxiliary mounting frame (6) through a horizontal hinge shaft, the other end of the auxiliary rotating arm is hinged with the main mounting frame (4) through a vertical hinge shaft, an auxiliary horizontal angle adjusting device (8) is arranged between the auxiliary mounting frame (6) and the main mounting frame (4), an auxiliary right angle adjusting device (9) is arranged between the auxiliary mounting frame (6) and the auxiliary rotating arm (7), the bottom of the auxiliary mounting frame (6) is provided with an auxiliary mowing executing device (61) and the mower (2) is connected with the rear end of the mower frame (2), and a driving device (21) for driving the mechanical arm (3) to rotate around the vertical shaft is arranged on the mower frame (2).
2. The orchard double-cutter mowing actuator of claim 1, wherein: the mechanical arm (3) is rotationally connected with the mower frame (2) through a toothless rotary support bearing (22), a rotary mounting frame (23) for mounting the toothless rotary support bearing (22) is arranged on the mower frame (2), the driving device (21) is an electric push rod arranged on the rotary mounting frame (23), one end of the driving device (21) is hinged with the rotary mounting frame (23), and the other end of the driving device is hinged with the mechanical arm (3).
3. The orchard double-cutter mowing actuator of claim 1, wherein: the mechanical arm (3) comprises a first supporting arm (31) hinged with a main installation frame (4), one end of an angle adjusting device (5) is hinged with the main installation frame (4), the other end of the angle adjusting device is hinged with the first supporting arm (31), one end of the first supporting arm (31) far away from the main installation frame (4) is hinged with a second supporting arm (32), a first telescopic device (33) is arranged between the second supporting arm (32) and the first supporting arm (31), one end of the first telescopic device (33) is hinged with the second supporting arm (32), the other end of the first telescopic device is hinged with the first supporting arm (31), one end of the second supporting arm (32) far away from the first supporting arm (33) is hinged with a base (34), a second telescopic device (35) is arranged between the base (34) and the second supporting arm (32), and one end of the second telescopic device (35) is hinged with the base (34), and the other end of the second telescopic device is hinged with the second supporting arm (32).
4. The orchard double-cutter mowing actuator of claim 1, wherein: the top of the auxiliary rotating arm (7) is provided with an auxiliary mounting seat (71) for mounting an auxiliary vertical angle adjusting device (9).
5. The orchard double-cutter mowing actuator of claim 1, wherein: the angle adjusting device (5), the auxiliary horizontal angle adjusting device (8) and the auxiliary vertical angle adjusting device (9) are all electric push rods.
6. The orchard double-cutter mowing actuator of claim 1, wherein: the main mowing actuator (41) and the auxiliary mowing actuator (61) each comprise a mowing motor and a mowing blade mounted on the mowing motor.
CN202310603054.6A 2023-05-25 2023-05-25 Orchard double-cutter mowing executing mechanism Pending CN116491291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310603054.6A CN116491291A (en) 2023-05-25 2023-05-25 Orchard double-cutter mowing executing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310603054.6A CN116491291A (en) 2023-05-25 2023-05-25 Orchard double-cutter mowing executing mechanism

Publications (1)

Publication Number Publication Date
CN116491291A true CN116491291A (en) 2023-07-28

Family

ID=87330361

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310603054.6A Pending CN116491291A (en) 2023-05-25 2023-05-25 Orchard double-cutter mowing executing mechanism

Country Status (1)

Country Link
CN (1) CN116491291A (en)

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