CN114391387B - Automatic trimming means is planted in central authorities' median green - Google Patents
Automatic trimming means is planted in central authorities' median green Download PDFInfo
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- CN114391387B CN114391387B CN202210129256.7A CN202210129256A CN114391387B CN 114391387 B CN114391387 B CN 114391387B CN 202210129256 A CN202210129256 A CN 202210129256A CN 114391387 B CN114391387 B CN 114391387B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/08—Other tools for pruning, branching or delimbing standing trees
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Abstract
The invention provides an automatic trimming device for green plants of a central separation belt, which belongs to the technical field of automatic trimming and comprises a travelling device, an image recognition camera, a front end trimming device, a front end trimming model tool, telescopic cross bars, a cleaning structure and a square trimming device, wherein the two telescopic cross bars are transversely arranged at the top ends of the two travelling devices, when the green plants of the central separation belt are trimmed, the telescopic cross bars shrink and pass through, and the image recognition camera is arranged on one telescopic cross bar at the front end. The invention can realize the green automatic trimming of the central dividing strip on the expressway, does not need to seal the traffic of the expressway, is more time-saving and labor-saving, is safer, can automatically induce the post, automatically avoid, can trim the model of a single plant, has more intellectualization, automatically cleans the fallen cut objects by the cleaning structure, and simultaneously cleans the side edge of the expressway, thereby achieving two purposes.
Description
Technical Field
The invention relates to the technical field of automatic trimming, in particular to a green plant trimming device for a central division strip of a highway, and particularly relates to a green plant automatic trimming device for a central division strip.
Background
The central dividing strip refers to a strip-shaped facility for dividing a roadway, which is longitudinally arranged along a road, the dividing strip is arranged for ensuring the driving safety and due functions of the expressway and the primary road, along with the rapid increase of the quantity of the reserved vehicles and the steady improvement of the vehicle performance, traffic participants also bring higher expectations to the central dividing strip which is taken as a main traffic facility of the urban road, the central dividing strip not only has the general functions of isolating bidirectional traffic and reducing the interference of opposite traffic, but also has the functions of burying a communication pipeline, installing anti-dazzle facilities, protecting pedestrians from crossing, providing space for arranging street lamps and sign labels, providing operation places for municipal construction and the like, and the design of the central dividing strip is more matched with road section traffic organization and traffic management control schemes based on the consideration of safety and smoothness angles.
The inner end of the existing central separation belt can be planted in a green manner, so that on one hand, the ornamental value of a road is improved, on the other hand, the automobile exhaust is purified, the environmental comfort is improved, the green planting can grow rapidly for a long time, the heightened green planting can block the sight of a driver, the normal driving of the driver is influenced, and traffic accidents are easily caused, so that the green planting needs to be trimmed regularly. The traditional trimming mode is to manually trim, and is low in efficiency, and the trimming personnel are unsafe, especially the trimming of green plants of the central separation zone on the expressway, so that a fully-automatic trimming planting needs to be designed.
Disclosure of Invention
The invention aims to provide an automatic trimming device for green plants of a central separation belt, which solves the technical problems that the existing trimming mode is low in efficiency and the trimming staff is unsafe.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an automatic trimming means is planted to central authorities ' dividing strip green, including running gear, the image recognition camera, front end trimming means, front end trimming model utensil sword, flexible horizontal pole, clean structure and square trimming means, two flexible horizontal poles span and set up the top at two running gear, when carrying out the green planting of central authorities ' dividing strip and meetting the pole, flexible horizontal pole shrink is passed through, the image recognition camera sets up on one flexible horizontal pole of front end, the image recognition camera is used for detecting the central authorities ' dividing strip whether there is the position of pole and location pole, the position of the plant of real-time detection plant simultaneously, front end trimming means mobilizable setting is in the bottom of flexible horizontal pole, front end trimming model utensil sword is dismantled the setting in front end trimming means's bottom, front end trimming means is used for pruning single plant model shape through front end trimming model utensil sword, clean the structure sets up the rear end at running gear, clean structure is used for cleaning the scissors that drops in both sides, square trimming means sets up on one flexible horizontal pole of rear end, square trimming means is used for pruning continuous central authorities ' green planting of dividing strip.
Further, running gear includes two running structures, is provided with buffer structure on the running structure, and two buffer structure's top is provided with connects the horizontal pole case and connects, is provided with two spinal branch vaulting poles on connecting the horizontal pole case, and the outside of root bracing piece is provided with driving suggestion reflector panel, is provided with extending structure on the bracing piece, and extending cross pole setting is vertical reciprocate on extending structure.
Further, the inner side of the walking structure is provided with a lateral wheel, the lateral wheel is horizontally and transversely arranged, a pressure sensor is arranged on the wheel surface of the lateral wheel, the lateral wheel is clung to an outer partition wall planted in the green of the central partition belt, and the pressure sensor is used for detecting the pressure of the lateral partition wall, so that the walking structure is clung to the outer partition wall to run.
Further, the telescopic cross rod comprises fixed cross rods on two sides and middle telescopic plates, the fixed cross rods on two ends are fixedly and transversely arranged on the telescopic structure, the middle telescopic plates are arranged on the fixed cross rods on one side and can transversely stretch and retract, the front ends of the middle telescopic plates and the fixed cross rods on the other side are arranged to be telescopic joints, automatic fixed arrays are arranged on the telescopic joints and used for correcting deviation of the walking devices on two sides after the walking devices on two sides are separated, and when the telescopic cross rods are completely aligned with each other, the telescopic cross rods are separated from original shrinkage to be in a transmission state, and the walking devices on two sides of the extension of the telescopic cross rods are changed into integral walking.
Further, the automatic array is a photoelectric sensor array, one end is provided with a plurality of arranged photoelectric emission probes, the other end is provided with a plurality of photoelectric receiving heads which are arranged in the same way as the photoelectric emission probes, each photoelectric emission probe is provided with a number, meanwhile, the emission light intensity of each photoelectric emission probe is different, the photoelectric receiving heads are correspondingly provided with the photoelectric model intensity which is required to be received initially, when the photoelectric signal intensity of each photoelectric receiving head is in the range of a preset value, the telescopic cross rod can be stretched and butted from the contracted state, when the photoelectric signal intensity of the photoelectric receiving heads is not in the range of the preset value, the photoelectric receiving heads are taken out to receive the value of the photoelectric signals, then the photoelectric receiving heads are identified, the value of the photoelectric signals is judged to be the same as the initial setting value of the photoelectric receiving heads, the running gear on two sides are adjusted according to the position of the number, one side of the telescopic joint opening is provided with a joint induction switch, and the joint induction switch is a magnetic attraction switch, and when the joint induction switch is attracted and conducted, the joint induction switch is completely aligned and combined.
Further, square trimming means includes top telescopic machanism, the top is dull and stereotyped, right side connecting rod, right side extending structure, right side is dull and stereotyped, left side connecting rod, left side extending structure and left side are dull and stereotyped, the movable setting of top extending structure is on flexible horizontal pole, the dull and stereotyped bottom at top extending structure of top, the dull and stereotyped front end of top and bottom are provided with electronic pruning knife for prune the green top of planting of continuous square central authorities median, right side connecting rod and left side connecting rod are movable to be set up on flexible horizontal pole, and set up in the both sides of top flat board, right side extending structure transversely sets up in the bottom of right side connecting rod, right side flat board vertically sets up on right side extending structure, left side extending structure transversely sets up on left side connecting rod, left side flat board and right side flat board set up relatively, left side flat board and the front end and the inboard of right side flat board all are provided with electronic pruning knife.
Further, the front end trimming die cutter is arranged as an inverted L-shaped die cutter or a semicircular die cutter, and the front end of the die cutter is provided with an electric trimming knife.
Further, the walking device is also provided with a cut-off collecting box, and the cut-off collecting box is connected with the cleaning structure through an absorbing pipeline.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention can realize the green automatic trimming of the central dividing strip on the expressway, does not need to seal the traffic of the expressway, is more time-saving and labor-saving, is safer, can automatically induce the post, automatically avoid, can trim the model of a single plant, has more intellectualization, automatically cleans the fallen cut objects by the cleaning structure, and simultaneously cleans the side edge of the expressway, thereby achieving two purposes.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a block diagram of a square pruning device according to the present invention;
FIG. 3 is a first block diagram of the front end trim model tool of the present invention;
FIG. 4 is a second block diagram of the front end trim model tool of the present invention;
FIG. 5 is a schematic view of the automatic array configuration of the telescopic joint of the present invention;
fig. 6 is a schematic view of the structure of the walking mechanism of the invention.
In the drawings, a 1-walking device, a 1.1-walking structure, a 1.2-buffering structure, a 1.3-connecting cross bar box, a 1.4-supporting rod, a 1.5-driving prompt reflecting plate, a 1.6-telescopic structure, a 2-image recognition camera, a 3-front end trimming device, a 4-front end trimming model tool, a 5-telescopic joint, a 5.1-automatic array, a 6-joint inductive switch, a 7-telescopic cross bar, an 8-lateral wheel, a 9-pressure sensor, a 10-cleaning structure, an 11-square trimming device, an 11.1-top telescopic mechanism, an 11.2-top flat plate, an 11.3-right connecting rod, an 11.4-right telescopic structure, an 11.5-right flat plate, an 11.6-left connecting rod, an 11.7-left telescopic structure and an 11.8-left flat plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.
As shown in fig. 1, an automatic trimming device for green plants in a central division belt comprises a traveling device 1, an image recognition camera 2, a front end trimming device 3, a front end trimming model knife 4, a telescopic cross rod 7, a cleaning structure 10 and a square trimming device 11, wherein the two telescopic cross rods 7 are transversely arranged at the top ends of the two traveling devices 1, when the green plants in the central division belt are trimmed and meet the posts, the telescopic cross rod 7 is contracted and passed, the image recognition camera 2 is arranged on one telescopic cross rod 7 at the front end, the image recognition camera 2 is used for detecting whether the central division belt has the posts and positioning the posts, the position of plants is detected in real time, the front end trimming device 3 is movably arranged at the bottom of the telescopic cross rod 7, the front end trimming model knife (4) is detachably arranged at the bottom of the front end trimming device 3, the front end trimming device 3 is used for trimming single plant model shapes through the front end trimming model knife 4, the cleaning structure 10 is arranged at the rear end of the traveling mechanism 1, the square trimming structure 10 is used for cleaning the cut pieces falling on two sides, the square trimming device 11 is arranged on one telescopic cross rod 7 at the rear end, and the continuous green plants in the central division belt are trimmed and continuously arranged on the front end trimming device 11. The cutting efficiency is improved, and meanwhile, the whole device is close to the central separation belt in the moving process, so that the normal running of the expressway vehicle can not be influenced.
In the embodiment of the invention, as shown in fig. 6, the walking device 1 comprises two walking structures 1.1, the walking structures 1.1 are provided with buffer structures 1.2, the top ends of the two buffer structures 1.2 are provided with a connecting cross rod box 1.3 for connection, the connecting cross rod box 1.3 is provided with two support rods 1.4, the outer sides of the root support rods 1.4 are provided with driving prompt reflecting plates 1.5, the support rods 1.4 are provided with telescopic structures 1.6, and the telescopic cross rods 7 are arranged on the telescopic structures 1.6 to vertically move up and down.
In the embodiment of the invention, as shown in fig. 1 and 6, the inner side of the walking structure 1.1 is provided with the lateral wheels 8, the lateral wheels 8 are horizontally and transversely arranged, the wheel surfaces of the lateral wheels 8 are provided with the pressure sensors 9, the lateral wheels 8 are tightly attached to the outer partition walls planted in the green of the central partition belt, and the pressure sensors 9 are used for detecting the pressure with the outer partition walls, so that the walking structure 1.1 is tightly attached to the outer partition walls to run.
In the embodiment of the invention, as shown in fig. 5 and 6, the telescopic cross rod 7 comprises fixed cross rods at two sides and a middle telescopic plate, the fixed cross rods at two ends are fixedly and transversely arranged on the telescopic structure 1.6, the middle telescopic plate is arranged on the fixed cross rod at one side and can transversely and telescopically arranged, the front end of the middle telescopic plate and the fixed cross rod at the other side are arranged to be telescopic joint openings 5, the telescopic joint openings 5 are provided with automatic fixed arrays 5.1, the automatic fixed arrays 5.1 are used for correcting the deviation of the running gear 1 at two sides after being separated, and when the automatic fixed arrays are completely matched with the running gear 1 at two sides, the telescopic cross rod 7 is changed into the running gear 1 at two sides of the extension of the telescopic cross rod 7 from the original shrinkage separation running state to be integrally connected.
The automatic array 5.1 is a photoelectric sensor array, one end is provided with a plurality of arranged photoelectric emission probes, the other end is provided with a plurality of photoelectric receiving heads which are arranged in the same way as the photoelectric emission probes, each photoelectric emission probe is provided with a number, meanwhile, the emission light intensity of each photoelectric emission probe is different, the photoelectric receiving heads are correspondingly provided with the initial photoelectric model intensity to be received, when the photoelectric signal intensity of each photoelectric receiving head is in the range of a preset value, the telescopic cross rod 7 can be stretched and butted from the contracted state, when the photoelectric signal intensity of the photoelectric receiving heads is not in the range of the preset value, the photoelectric receiving heads are taken out to receive the value of the photoelectric signal, then the photoelectric receiving heads are identified, the value of the photoelectric signal is judged to be the same as the initial setting value of the photoelectric receiving heads, the running gear 1 on two sides are adjusted according to the number positions, one side of the telescopic joint opening 5 is provided with the joint inductive switch 6, and when the joint inductive switch 6 is in the attraction and conduction, the complete alignment is indicated.
As shown in FIG. 5, when the receiving head at the leftmost upper end receives the transmitting signal of the transmitting head at the right lower end, the walking structure at one side of the receiving head is required to move at the moment, the other side is stopped, then the height is adjusted in a motor remembering way through the vertical telescopic rod of the walking structure, the adjustment in the transverse direction and the vertical direction is realized, the complete alignment of people is realized, then the switch for magnetic washing is turned on, and the magnetic force is generated for attraction fixation.
In the embodiment of the invention, as shown in fig. 2, the square trimming device 11 comprises a top telescopic mechanism 11.1, a top flat plate 11.2, a right connecting rod 11.3, a right telescopic structure 11.4, a right flat plate 11.5, a left connecting rod 11.6, a left telescopic structure 11.7 and a left flat plate 11.8, wherein the top telescopic mechanism 11.1 is movably arranged on the telescopic cross rod 7, the top flat plate 11.2 is transversely arranged at the bottom of the top telescopic mechanism 11.1, the front end and the bottom of the top flat plate 11.2 are provided with electric trimming knives for trimming the top end of a continuous square central division belt green plant, the right connecting rod 11.3 and the left connecting rod 11.6 are movably arranged on the telescopic cross rod 7 and are arranged at two sides of the top flat plate 11.2, the right telescopic structure 11.4 is transversely arranged at the bottom of the right connecting rod 11.3, the right flat plate 11.5 is vertically arranged on the right telescopic structure 11.4, the left telescopic structure 11.7 is transversely arranged on the left connecting rod 11.6, the left flat plate 11.8 is vertically arranged on the left flat plate 11.8, and the left flat plate 11.8 is vertically arranged at the left side opposite front end and the right flat plate 11.8.
In the embodiment of the present invention, as shown in fig. 3-4, the front end trimming die blade 4 is an inverted "L" die blade or a semicircular die blade, and the front end of the die blade is provided with an electric trimming knife. The walking device 1 is also provided with a cut-off collecting box which is connected with the cleaning structure 10 through a suction pipeline. The shear object collecting box is dumped into the collecting vehicle within a certain distance.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (1)
1. An automatic trimming means is planted to central authorities' median green which characterized in that: the device comprises a traveling device (1), an image recognition camera (2), a front end trimming device (3), a front end trimming model cutter (4), telescopic cross rods (7), a cleaning structure (10) and a square trimming device (11), wherein the two telescopic cross rods (7) are arranged at the top ends of the two traveling devices (1) in a straddling mode, when a single plant is planted in a green trimming center of the dividing strip, the telescopic cross rods (7) shrink and pass through, the image recognition camera (2) is arranged on one telescopic cross rod (7) at the front end, the image recognition camera (2) is used for detecting whether the center dividing strip has the positions of the post and the positioning post, the position of plants is detected in real time, the front end trimming device (3) is movably arranged at the bottom of the telescopic cross rods (7), the front end trimming model cutter (4) is detachably arranged at the bottom of the front end trimming device (3), the front end trimming device (3) is used for trimming the shape of the single plant model through the front end trimming model cutter (4), the cleaning structure (10) is arranged at the rear end of the traveling device (1), the image recognition camera (2) is used for detecting whether the posts are located on the center dividing strip of the dividing strip, and the square trimming device (11) is arranged on the front end of the dividing strip, and the square trimming device (11) is used for trimming the square continuous cutting device;
the walking device (1) comprises two walking structures (1.1), a buffer structure (1.2) is arranged on the walking structures (1.1), a connecting cross rod box (1.3) is arranged at the top end of each of the two buffer structures (1.2), two support rods (1.4) are arranged on the connecting cross rod box (1.3), driving prompt reflecting plates (1.5) are arranged on the outer sides of the two support rods (1.4), a telescopic structure (1.6) is arranged on each support rod (1.4), and a telescopic cross rod (7) vertically moves up and down on the telescopic structure (1.6);
the inner side of the walking structure (1.1) is provided with a lateral wheel (8), the lateral wheel (8) is horizontally and transversely arranged, the wheel surface of the lateral wheel (8) is provided with a pressure sensor (9), the lateral wheel (8) is clung to an outer partition wall planted in a green way of a central partition belt, and the pressure sensor (9) is used for detecting the pressure of the lateral partition wall, so that the walking structure (1.1) is clung to the outer partition wall to run;
the telescopic cross rod (7) comprises fixed cross rods at two sides and a middle telescopic plate, the fixed cross rods at two ends are fixedly and transversely arranged on the telescopic structure (1.6), the middle telescopic plate is arranged on the fixed cross rod at one side and transversely arranged in a telescopic way, the front end of the middle telescopic plate and the fixed cross rod at the other side are arranged to be telescopic joint openings (5), automatic fixed arrays (5.1) are arranged on the telescopic joint openings (5), and the automatic fixed arrays (5.1) are used for correcting deviation of the walking devices (1) at two sides after the walking devices are separated;
the automatic array (5.1) is a photoelectric sensor array, one end of the automatic array is provided with a plurality of arranged photoelectric emission probes, the other end of the automatic array is provided with a plurality of photoelectric receiving heads which are arranged in the same way as the photoelectric emission probes, each photoelectric emission probe is provided with a serial number, meanwhile, the emission light intensity of each photoelectric emission probe is different, the photoelectric receiving heads are correspondingly provided with the photoelectric model intensity which is required to be received initially, when the photoelectric signal intensity of each photoelectric receiving head is in a preset value range, the telescopic cross rod (7) stretches and connects from a contracted state, when the photoelectric signal intensity of the photoelectric receiving heads is not in the preset value range, the photoelectric receiving heads are read to have the value of the photoelectric signals, then the photoelectric receiving heads are identified, the value of the photoelectric signals is judged to be the same as the initial setting value of the photoelectric receiving heads, the travelling devices (1) on two sides are regulated according to the serial number position, one side of the telescopic connecting port (5) is provided with a joint induction switch (6), and the joint induction switch (6) is a magnetic force absorption switch, and when the joint induction switch (6) absorbs and conducts, the joint induction switch (6) and is completely aligned;
the square trimming device (11) comprises a top telescopic mechanism (11.1), a top flat plate (11.2), a right connecting rod (11.3), a right telescopic structure (11.4), a right flat plate (11.5), a left connecting rod (11.6), a left telescopic structure (11.7) and a left flat plate (11.8), wherein the top telescopic mechanism (11.1) is movably arranged on a telescopic cross rod (7), the top flat plate (11.2) is transversely arranged at the bottom of the top telescopic mechanism (11.1), the front end and the bottom of the top flat plate (11.2) are provided with electric trimming knives, the front ends of the trimming continuous square central separation belt green plants are arranged on the top ends of the right connecting rod (11.3) and the left connecting rod (11.6), the right connecting rod (11.4) and the left connecting rod (11.6) are movably arranged on the telescopic cross rod (7) and are arranged on two sides of the top flat plate (11.2), the right connecting rod (11.3) is transversely arranged at the bottom of the right connecting rod (11.4), the right flat plate (11.5) is vertically arranged on the right flat plate (11.4), and the left flat plate (11.5) is vertically arranged on the left flat plate (11.8) and the left flat plate (11.5) and the left flat plate (11.8) is vertically arranged on the front end and the left flat plate (11.8) which is opposite to the front end of the right flat plate (11.5;
the front end trimming model cutter (4) is an inverted L-shaped model cutter or a semicircular model cutter, and the front end of the model cutter is provided with an electric trimming knife;
the walking device (1) is also provided with a cut-off collecting box which is connected with the cleaning structure (10) through a suction pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210129256.7A CN114391387B (en) | 2022-02-11 | 2022-02-11 | Automatic trimming means is planted in central authorities' median green |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210129256.7A CN114391387B (en) | 2022-02-11 | 2022-02-11 | Automatic trimming means is planted in central authorities' median green |
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| Publication Number | Publication Date |
|---|---|
| CN114391387A CN114391387A (en) | 2022-04-26 |
| CN114391387B true CN114391387B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210129256.7A Active CN114391387B (en) | 2022-02-11 | 2022-02-11 | Automatic trimming means is planted in central authorities' median green |
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| CN111771565A (en) * | 2020-07-30 | 2020-10-16 | 和县绿源蔬菜种植有限责任公司 | High-quality and high-efficiency cultivation equipment for solanaceous vegetables |
| CN211815579U (en) * | 2019-12-10 | 2020-10-30 | 韶关市涵润信息科技有限公司 | Telescopic bridge side obstacle avoiding detection vehicle |
| CN212034968U (en) * | 2020-03-05 | 2020-12-01 | 滨州学院 | Pruning machine |
| CN113853970A (en) * | 2021-08-20 | 2021-12-31 | 郭长铭 | Vegetation trimming means |
-
2022
- 2022-02-11 CN CN202210129256.7A patent/CN114391387B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106034773A (en) * | 2016-08-04 | 2016-10-26 | 安徽鑫苗园林景观建设有限公司 | Garden-shrub clipping device |
| CN109511403A (en) * | 2018-11-23 | 2019-03-26 | 西安科技成果转化工程有限公司 | A kind of automatic clipping device of highway greenbelt |
| CN110140538A (en) * | 2019-06-17 | 2019-08-20 | 临海永存智能技术有限公司 | A kind of automatic clipping device of greenbelt |
| CN211815579U (en) * | 2019-12-10 | 2020-10-30 | 韶关市涵润信息科技有限公司 | Telescopic bridge side obstacle avoiding detection vehicle |
| CN212034968U (en) * | 2020-03-05 | 2020-12-01 | 滨州学院 | Pruning machine |
| CN111480470A (en) * | 2020-05-19 | 2020-08-04 | 王燕 | Municipal afforestation secondary-cleaning-free green plant trimming equipment and implementation mode |
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| CN113853970A (en) * | 2021-08-20 | 2021-12-31 | 郭长铭 | Vegetation trimming means |
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| Publication number | Publication date |
|---|---|
| CN114391387A (en) | 2022-04-26 |
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