Forestry surrounding type weeding device

Abstract

The invention relates to the technical field of forestry weeding, and particularly discloses a forestry surrounding type weeding device which comprises a supporting frame. The adjusting mechanism comprises an adjusting box, a driver, an adjusting screw rod, an adjusting frame and a motor, the adjusting box is installed between the two side frame walls of the supporting frame, the driver is installed at the top end of the adjusting box, and the adjusting screw rod is installed between the top box wall and the bottom box wall of the adjusting box through a bearing; the adjusting frame is mounted on the outer surface of the adjusting screw rod; the adjusting screw is driven by the driver to rotate, the adjusting frame drives the weeding mechanism to move up and down accordingly, the height of the weeding cutter can be flexibly adjusted, the obstacle crossing ability of the device is improved through the design, the device can adapt to the ground with different flatness, the service life is prolonged, the application range of the weeding device is widened, and meanwhile the weeding efficiency is improved. Through cooperation of driving of the motor and meshing transmission of the gear, the weeding mechanism can conduct surrounding weeding, and the weeding efficiency is remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of forestry weeding, and in particular relates to a forestry surrounding weeding device. Background Art

[0002] Forestry refers to the production department that protects the ecological environment and maintains ecological balance, cultivates and protects forests to obtain timber and other forest products, and utilizes the natural characteristics of forests to play a protective role. It is an important part of the national economy. In forestry planting, a lot of weeds often grow. These weeds will compete with the planted plants for organic matter in the soil, thus affecting the growth of the planted plants. Therefore, it is necessary to regularly remove the weeds in forestry.

[0003] In the Chinese patent with publication number CN213427059U, a weeding device for forestry is mentioned. When working, a main frame, a driving motor, a rotating rod, a weeding knife, a collecting box, a scraper rod, a moving wheel, a weed treatment box, a suction pump and a hand push frame are provided, so that the moving wheel drives the whole device to move. During the movement, the weeding knife is driven by the power of the driving motor to rotate and weed, and then the weeds are transported to the inside of the weed treatment box by the power of the suction pump. The whole weeding device solves the problem that the existing forestry weeding device cannot be adjusted during use, so that the weeding device is difficult to weed accurately, and realizes the function of collecting weeds while cutting weeds. It has fast speed, high degree of automation, reduces subsequent work costs, and is suitable for popularization and use; however, the height of the weeding knife in the weeding device is fixed, and it cannot be flexibly adjusted for different flatness of the ground, which causes the weeding knife to easily hit obstacles, thereby causing blade damage, which not only affects the weeding effect and service life of the weeding knife, but also greatly reduces the scope of application of the weeding device. Summary of the invention

[0004] The object of the present invention is to provide a forestry surround weeding device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A forestry surrounding weeding device, comprising:

[0007] Support frame;

[0008] The adjusting mechanism comprises an adjusting box, a driver, an adjusting screw, an adjusting frame and a motor, wherein the adjusting box is installed between the two side frame walls of the supporting frame, the driver is installed at the top of the adjusting box, the adjusting screw is installed between the top box wall and the bottom box wall of the adjusting box through a bearing, the adjusting frame is installed on the outer surface of the adjusting screw, and the motor is installed in the middle of the bottom frame wall of the adjusting frame;

[0009] A collecting mechanism, which is installed in the middle of the top frame wall of the support frame and can collect and crush the cleaned weeds;

[0010] The spraying mechanism is installed on one side of the top end of the support frame, and the spraying mechanism can spray herbicides to eradicate weeds, thereby enhancing the weeding effect.

[0011] Preferably, universal wheels are installed at the four corners of the bottom end of the support frame, limiting grooves are provided in the middle of the inner walls on both sides of the support frame, a collection box is installed in the middle of the top end of the support frame, an avoidance hole is provided on the other side of the top frame wall of the support frame, a push frame is installed at the lower part of one end of the support frame, and a controller is installed on one side of the outer wall of the support frame.

[0012] Preferably, a fixed shaft is installed at the output end of the motor, a protective cover is installed at the bottom end of the fixed shaft, three weeding mechanisms are installed at the bottom end of the protective cover, a driving gear is installed on the outer surface of the fixed shaft, and a guide groove is opened at the bottom end of the adjustment frame.

[0013] Preferably, the weeding mechanism includes a weeding shaft, a guide block, a driven gear and a weeding knife, the weeding shaft is installed at the bottom end of the protective cover through a bearing, the guide block is installed at the top end of the weeding shaft through a bearing, the driven gear is installed on the upper outer surface of the weeding shaft, and the weeding knife is installed at the bottom end of the weeding shaft.

[0014] Preferably, the guide block is slidably connected to the guide groove, the driven gear is meshed with the driving gear, and the diameter length of the driven gear is smaller than the diameter length of the driving gear, and the motor and the driver are both electrically connected to the controller.

[0015] Preferably, the collecting mechanism includes a collecting frame, a grass raking mechanism, a limiting frame, an electric telescopic rod and a grass suction pipe, the grass raking mechanism is installed inside the collecting frame, two limiting frames, two electric telescopic rods and two grass suction pipes are provided, and the two limiting frames are respectively installed on the outer walls on both sides of the collecting frame, the two electric telescopic rods are respectively installed on the top of the limiting frames, and the tops of the two electric telescopic rods are respectively installed on the top groove walls of the two limiting grooves, the two grass suction pipes are both installed on the top of the collecting frame, and the tops of the two grass suction pipes are both installed on the bottom end of the collecting box.

[0016] Preferably, the raking mechanism includes a pulley group, a transmission shaft, a crushing knife, a rotating shaft, a raking rack and a driving motor, the transmission shaft is installed on the upper side of the outer wall of the pulley group, a plurality of crushing knives and a plurality of raking racks are provided, and the plurality of crushing knives are installed on the outer surface of the transmission shaft, the rotating shaft is installed on the lower side of the outer wall of the pulley group, a plurality of raking racks are installed on the outer surface of the rotating shaft, and the driving motor is installed on the other end of the rotating shaft.

[0017] Preferably, the bottom end surface of the lowermost grass raking rack is lower than the bottom end surface of the collecting frame, the driving motor, the electric telescopic rod and the grass suction pipe are all electrically connected to the controller, the upper outer surface of the collecting frame is arranged as a trapezoidal structure, the limiting frame is arranged as a dry-shaped structure, and an avoidance groove is provided on the limiting frame located at the pulley group, and the grass suction pipe is arranged as a folding structure.

[0018] Preferably, the spraying mechanism includes a medicine storage box, a sealing cover, a water pump, a medicine delivery pipe and a rotating spray head. The medicine storage box is installed on one side of the top of the support frame, the sealing cover is installed on the top of the medicine storage box, the water pump is installed at the bottom of the medicine storage box, the medicine delivery pipe is installed at the bottom of the water pump, and a number of rotating spray heads are provided, and the several rotating spray heads are all installed at the bottom of the medicine delivery pipe.

[0019] Preferably, the water pump is electrically connected to the controller, the drug delivery tube is configured as a T-shaped structure, the rotary spray head is configured as a herringbone structure, and the plurality of nozzles on the rotary spray head are configured as inclined structures.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention sets an adjustment mechanism inside the support frame. The driver drives the adjustment screw to rotate, and the adjustment frame drives the weeding mechanism to move up and down, so that the height of the weeding knife can be flexibly adjusted. This design improves the obstacle-crossing ability of the device, enables it to adapt to ground surfaces of different flatness, thereby extending its service life and expanding the scope of application of the weeding device. At the same time, through the drive of the motor and the meshing transmission of the gears, the weeding mechanism can perform circumferential weeding, which significantly improves the weeding efficiency.

[0022] (2) The present invention sets a collecting mechanism at the bottom of the collecting box. The driving motor cooperates with the transmission of the pulley group to simultaneously drive the rotating shaft and the transmission shaft to rotate, so that a plurality of rake frames rake the cleared weeds and rake the weeds into the collecting frame, and a plurality of crushing knives crush the weeds to prevent the weeds from clogging the device. Finally, the crushed grass is input into the collecting box through the grass suction pipe, thereby preventing the cleared weeds from blocking the ground.

[0023] (3) The present invention has a spraying mechanism disposed at the top of the support frame. The herbicide in the medicine storage box can be pumped out by a water pump, and then the herbicide is diverted and input into a plurality of rotating spraying heads through a medicine delivery pipe. The power generated by the herbicide spraying can drive the plurality of rotating spraying heads to rotate, thereby expanding the spraying range of the herbicide, allowing the herbicide to act more directly on the roots of the grass, and further improving the weeding efficiency of the weeding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 is a cross-sectional view of the adjustment mechanism of the present invention;

[0026] Figure 3 is a three-dimensional diagram of the protective cover of the present invention;

[0027] Figure 4 A three-dimensional diagram of the weeding mechanism of the present invention;

[0028] Figure 5 A three-dimensional diagram of the collecting mechanism of the present invention;

[0029] Figure 6 is a cross-sectional view of the collection frame of the present invention;

[0030] Figure 7 is a three-dimensional diagram of the raking mechanism of the present invention;

[0031] Figure 8 It is a three-dimensional diagram of the spraying mechanism of the present invention;

[0032] In the figure: 1. Support frame; 2. Adjustment mechanism; 3. Universal wheel; 4. Collection mechanism; 5. Limiting groove; 6. Spraying mechanism; 7. Collection box; 8. Avoidance hole; 9. Push frame; 10. Controller;

[0033] 21. Adjustment box; 22. Driver; 23. Adjustment screw; 24. Adjustment frame; 25. Motor; 26. Fixed shaft; 27. Protective cover; 28. Weeding mechanism; 29. ​​Driving gear; 210. Guide groove;

[0034] 281, weeding shaft; 282, guide block; 283, driven gear; 284, weeding knife;

[0035] 41. Collection frame; 42. Raking mechanism; 43. Limiting frame; 44. Electric telescopic rod; 45. Grass suction pipe;

[0036] 421, pulley assembly; 422, transmission shaft; 423, crushing blade; 424, rotating shaft; 425, rake frame; 426, driving motor;

[0037] 61. Medicine storage box; 62. Sealing cover; 63. Water pump; 64. Medicine delivery pipe; 65. Rotating spray head. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] See also Figures 1 to 8 As shown, a forestry surrounding weeding device comprises:

[0041] Support frame 1;

[0042] The adjusting mechanism 2 includes an adjusting box 21, a driver 22, an adjusting screw 23, an adjusting frame 24 and a motor 25. The adjusting box 21 is installed between the two side frame walls of the support frame 1, the driver 22 is installed on the top of the adjusting box 21, the adjusting screw 23 is installed between the top box wall and the bottom box wall of the adjusting box 21 through a bearing, the adjusting frame 24 is installed on the outer surface of the adjusting screw 23, and the motor 25 is installed in the middle of the bottom frame wall of the adjusting frame 24;

[0043] A collecting mechanism 4, which is installed in the middle of the top frame wall of the support frame 1, and can collect and crush the cleaned weeds;

[0044] The spraying mechanism 6 is installed on one side of the top of the support frame 1, and the spraying mechanism 6 can spray herbicides to eradicate weeds, which can enhance the weeding effect.

[0045] Depend on Figures 1 to 4 It can be seen that universal wheels 3 are installed at the four corners of the bottom end of the support frame 1, limited slots 5 are provided in the middle of the inner walls on both sides of the support frame 1, a collection box 7 is installed in the middle of the top of the support frame 1, and an avoidance hole 8 is provided on the other side of the top frame wall of the support frame 1. A push frame 9 is installed at the lower part of one end of the support frame 1, and a controller 10 is installed on one side of the outer wall of the support frame 1;

[0046] The output end of the motor 25 is provided with a fixed shaft 26, the bottom end of the fixed shaft 26 is provided with a protective cover 27, the bottom end of the protective cover 27 is provided with three weeding mechanisms 28, the outer surface of the fixed shaft 26 is provided with a driving gear 29, and the bottom end of the adjustment frame 24 is provided with a guide groove 210;

[0047] The weeding mechanism 28 includes a weeding shaft 281, a guide block 282, a driven gear 283 and a weeding knife 284. The weeding shaft 281 is installed at the bottom end of the protective cover 27 through a bearing, the guide block 282 is installed at the top end of the weeding shaft 281 through a bearing, the driven gear 283 is installed on the upper outer surface of the weeding shaft 281, and the weeding knife 284 is installed at the bottom end of the weeding shaft 281.

[0048] As can be seen from the above, first, the controller 10 controls the motor 25 to start, and the motor 25 drives the fixed shaft 26 to rotate, thereby driving the driving gear 29 and the protective cover 27 connected thereto to rotate together, and this rotation drives the three weeding mechanisms 28 to revolve. At the same time, through the meshing transmission between the driving gear 29 and the driven gear 283, the weeding shaft 281 is driven to rotate, thereby driving the weeding knife 284 to perform weeding operations. This surrounding weeding method not only enhances the weeding effect, but also expands the weeding range. In addition, the sliding of the guide block 282 in the guide groove 210 The limit design improves the stability of the weeding shaft 281 during the rotation process and significantly improves the weeding efficiency. When the weeding knife 284 encounters an obstacle, the controller 10 will control the driver 22 to start, and the driver 22 will then drive the adjusting screw 23 to rotate. This rotation enables the adjusting frame 24 to drive the weeding mechanism 28 to move upward as a whole. This design not only improves the obstacle crossing ability of the device, but also extends the service life of the weeding knife 284. At the same time, by flexibly adjusting the height of the weeding knife 284, the device can adapt to grounds of different flatness, thereby effectively expanding its scope of application.

[0049] Specifically, refer to Figures 1 to 4 As shown, the guide block 282 is slidably connected to the guide groove 210 , the driven gear 283 is meshed with the driving gear 29 , and the diameter length of the driven gear 283 is smaller than the diameter length of the driving gear 29 , and the motor 25 and the driver 22 are both electrically connected to the controller 10 .

[0050] As can be seen from the above, the guide groove 210 plays a guiding and limiting role on the guide block 282, and the driven gear 283 can be driven to rotate quickly through the driving gear 29, allowing the controller 10 to accurately control the motor 25 and the driver 22.

[0051] Embodiment 2:

[0052] refer to Figures 5 to 7 As shown, the collecting mechanism 4 includes a collecting frame 41, a grass raking mechanism 42, a limiting frame 43, an electric telescopic rod 44 and a grass suction pipe 45. The grass raking mechanism 42 is installed inside the collecting frame 41. Two limiting frames 43, electric telescopic rods 44 and grass suction pipes 45 are provided, and the two limiting frames 43 are respectively installed on the outer walls of both sides of the collecting frame 41, the two electric telescopic rods 44 are respectively installed on the top of the limiting frames 43, and the tops of the two electric telescopic rods 44 are respectively installed on the top groove walls of the two limiting grooves 5, the two grass suction pipes 45 are both installed on the top of the collecting frame 41, and the tops of the two grass suction pipes 45 are both installed on the bottom of the collecting box 7;

[0053] The raking mechanism 42 includes a pulley group 421, a transmission shaft 422, a crushing knife 423, a rotating shaft 424, a raking rack 425 and a driving motor 426. The transmission shaft 422 is installed on the upper side of the outer wall of the pulley group 421. There are several crushing knives 423 and raking racks 425, and several crushing knives 423 are installed on the outer surface of the transmission shaft 422. The rotating shaft 424 is installed on the lower side of the outer wall of the pulley group 421. Several raking racks 425 are installed on the outer surface of the rotating shaft 424. The driving motor 426 is installed on the other end of the rotating shaft 424.

[0054] As can be seen from the above, after the weeding mechanism 28 cuts and cleans the weeds, the controller 10 immediately controls the drive motor 426 and the grass suction pipe 45 to start, and the drive motor 426 drives the rotating shaft 424 to rotate, thereby driving a plurality of grass rake frames 425 to rake and clean out the weeds, and rakes these weeds into the collection frame 41. At the same time, the transmission action of the pulley group 421 drives the transmission shaft 422 to rotate synchronously, so that a plurality of crushing knives 423 start working to crush the collected weeds, effectively avoiding weeds from clogging the device. At the same time, the suction force generated by the grass suction pipe 45 sucks the crushed grass in the collection frame 41 and transports it to the collection box 7, so as to realize the collection and processing of the weeds. In addition, through the telescopic movement of the electric telescopic rod 44, the limit frame 43 slides up and down stably in the limit slot 5, thereby driving the collection frame 41 to move up and down, so that the height of the collection frame 41 can be flexibly adjusted following the height of the weeding knife 284.

[0055] Preferably, reference Figures 5 to 7 As shown, the bottom end surface of the lowermost grass raking frame 425 is lower than the bottom end surface of the collecting frame 41, the driving motor 426, the electric telescopic rod 44 and the grass suction pipe 45 are all electrically connected to the controller 10, the upper outer surface of the collecting frame 41 is set as a trapezoidal structure, the limiting frame 43 is set as a dry-shaped structure, and an avoidance groove is opened on the limiting frame 43 located at the pulley group 421, and the grass suction pipe 45 is set as a folding structure.

[0056] As can be seen from the above, this design ensures that the grass raking frame 425 can effectively rake up the weeds on the ground and will not be blocked by the bottom of the collecting frame 41. The trapezoidal structure of the collecting frame 41 can guide the weeds and is beneficial to the crushing of the weeds. The avoidance groove ensures that the pulley group 421 can operate stably. The folding structure of the grass suction pipe 45 can flexibly adjust its length without affecting the transportation of the weeds.

[0057] Embodiment three:

[0058] refer to Figure 8As shown, the spraying mechanism 6 includes a medicine storage box 61, a sealing cover 62, a water pump 63, a medicine delivery pipe 64 and a rotating medicine spray head 65. The medicine storage box 61 is installed on one side of the top end of the support frame 1, the sealing cover 62 is installed on the top end of the medicine storage box 61, the water pump 63 is installed at the bottom end of the medicine storage box 61, the medicine delivery pipe 64 is installed at the bottom end of the water pump 63, and a plurality of rotating medicine spray heads 65 are provided, and the plurality of rotating medicine spray heads 65 are installed at the bottom end of the medicine delivery pipe 64.

[0059] As can be seen from the above, by removing the sealing cover 62 from the medicine storage box 61, the herbicide can be easily injected into the medicine storage box 61. During the weeding operation of the weeding device, the controller 10 can control the water pump 63 to start. The water pump 63 extracts the herbicide from the inside of the medicine storage box 61 and diverts the herbicide to a plurality of rotating spray heads 65 through the medicine delivery pipe 64. These rotating spray heads 65 rotate under the power generated when the herbicide is sprayed, thereby expanding the spraying range of the herbicide. At the same time, since the collecting mechanism 4 has collected and removed the weeds on the ground, the herbicide can act more directly on the roots of the grass, further improving the weeding efficiency of the weeding device.

[0060] Preferably, reference Figure 8 As shown, the water pump 63 is electrically connected to the controller 10, the drug delivery pipe 64 is set to a T-shaped structure, the rotating spray head 65 is set to a herringbone structure, and the plurality of nozzles on the rotating spray head 65 are all set to an inclined structure.

[0061] As can be seen from the above, the controller 10 is allowed to accurately control the water pump 63, the T-shaped drug delivery pipe 64 can divert the drug liquid from the water pump 63 to multiple rotating spray heads 65, the herringbone structure of the rotating spray head 65 may be used to provide a wider spray coverage, and the inclined nozzle can drive the rotating spray head 65 to rotate.

[0062] Application examples:

[0063] The present design is applied in large forest farms and forest parks, farmland edges and orchards, farmland edges and orchards, and mountainous and hilly areas. It can operate flexibly in these complex terrains to ensure the weeding effect. The present design can flexibly adjust the position of the weeding knife 284 according to the flatness of the ground and the height of obstacles by setting the adjustment mechanism 2, ensuring that the weeding knife 284 always maintains an appropriate distance from the ground, which can effectively weed and avoid damaging the ground or damaging the device when encountering obstacles. Through height adjustment and surround design, the weeding device can flexibly adapt to different terrains, and then use the collection mechanism 4 to collect the removed weeds and crush the weeds to prevent clogging the grass suction pipe 45. The crushed weeds are easier to handle and stack, and are also convenient for subsequent treatment, such as composting. After the weeding is completed, the herbicide can be sprayed by the spraying mechanism 6 to expand the spraying range of the herbicide and enhance the weeding effect. At the same time, since the ground has been exposed, the herbicide can act more directly on the roots of the grass to improve the weeding efficiency.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forestry surround weeding device, characterized in that: include: Support frame (1); An adjusting mechanism (2), the adjusting mechanism (2) comprising an adjusting box (21), a driver (22), an adjusting screw (23), an adjusting frame (24) and a motor (25), the adjusting box (21) being mounted between two side frame walls of the support frame (1), the driver (22) being mounted on the top of the adjusting box (21), the adjusting screw (23) being mounted between the top box wall and the bottom box wall of the adjusting box (21) via a bearing, the adjusting frame (24) being mounted on the outer surface of the adjusting screw (23), and the motor (25) being mounted in the middle of the bottom frame wall of the adjusting frame (24); A collecting mechanism (4), the collecting mechanism (4) being installed in the middle of the top frame wall of the supporting frame (1), and the collecting mechanism (4) being capable of collecting and crushing the cleaned weeds; A spraying mechanism (6) is installed on one side of the top end of the support frame (1), and the spraying mechanism (6) can spray herbicides to eradicate weeds, thereby enhancing the weed control effect.

2. A forestry wraparound weeding device according to claim 1, characterized in that: Universal wheels (3) are installed at the four corners of the bottom end of the support frame (1), limiting grooves (5) are provided in the middle of the inner walls on both sides of the support frame (1), a collection box (7) is installed in the middle of the top end of the support frame (1), an avoidance hole (8) is provided on the other side of the top frame wall of the support frame (1), a push frame (9) is installed at the lower part of one end of the support frame (1), and a controller (10) is installed on one side of the outer wall of the support frame (1).

3. A forestry surround weeding device according to claim 2, characterized in that: A fixed shaft (26) is installed at the output end of the motor (25), a protective cover (27) is installed at the bottom end of the fixed shaft (26), three weeding mechanisms (28) are installed at the bottom end of the protective cover (27), a driving gear (29) is installed on the outer surface of the fixed shaft (26), and a guide groove (210) is opened at the bottom end of the adjustment frame (24).

4. A forestry wraparound weeding device according to claim 3, characterized in that: The weeding mechanism (28) comprises a weeding shaft (281), a guide block (282), a driven gear (283) and a weeding knife (284); the weeding shaft (281) is mounted on the bottom end of the protective cover (27) via a bearing; the guide block (282) is mounted on the top end of the weeding shaft (281) via a bearing; the driven gear (283) is mounted on the upper portion of the outer surface of the weeding shaft (281); and the weeding knife (284) is mounted on the bottom end of the weeding shaft (281).

5. A forestry surround weeding device according to claim 4, characterized in that: The guide block (282) is slidably connected to the guide groove (210), the driven gear (283) is meshed with the driving gear (29), and the diameter length of the driven gear (283) is smaller than the diameter length of the driving gear (29), and the motor (25) and the driver (22) are both electrically connected to the controller (10).

6. The forestry wraparound weeding device according to claim 1, characterized in that: The collecting mechanism (4) comprises a collecting frame (41), a grass raking mechanism (42), a limiting frame (43), an electric telescopic rod (44) and a grass suction pipe (45); the grass raking mechanism (42) is installed inside the collecting frame (41); two limiting frames (43), two electric telescopic rods (44) and two grass suction pipes (45) are provided, and the two limiting frames (43) are respectively installed on the outer walls of both sides of the collecting frame (41); the two electric telescopic rods (44) are respectively installed on the top ends of the limiting frames (43); and the top ends of the two electric telescopic rods (44) are respectively installed on the top groove walls of the two limiting grooves (5); the two grass suction pipes (45) are both installed on the top ends of the collecting frame (41); and the top ends of the two grass suction pipes (45) are both installed on the bottom end of the collecting box (7).

7. A forestry surround weeding device according to claim 6, characterized in that: The grass raking mechanism (42) comprises a pulley group (421), a transmission shaft (422), a crushing knife (423), a rotating shaft (424), a grass raking frame (425) and a driving motor (426); the transmission shaft (422) is mounted on the upper side of the outer wall of the pulley group (421); a plurality of crushing knives (423) and a grass raking frame (425) are provided, and the plurality of crushing knives (423) are mounted on the outer surface of the transmission shaft (422); the rotating shaft (424) is mounted on the lower side of the outer wall of the pulley group (421); a plurality of grass raking frames (425) are mounted on the outer surface of the rotating shaft (424); and the driving motor (426) is mounted on the other end of the rotating shaft (424).

8. The forestry surround weeding device according to claim 7, characterized in that: The bottom end surface of the grass raking frame (425) at the lowermost side is lower than the bottom end surface of the collecting frame (41); the driving motor (426), the electric telescopic rod (44) and the grass suction pipe (45) are all electrically connected to the controller (10); the upper portion of the outer surface of the collecting frame (41) is arranged as a trapezoidal structure; the limiting frame (43) is arranged as a stem-shaped structure; and an avoidance groove is provided on the limiting frame (43) located at the pulley group (421); and the grass suction pipe (45) is arranged as a folding structure.

9. The forestry surround weeding device according to claim 1, characterized in that: The medicine spraying mechanism (6) comprises a medicine storage box (61), a sealing cover (62), a water pump (63), a medicine delivery pipe (64) and a rotating medicine spraying head (65); the medicine storage box (61) is mounted on one side of the top end of the support frame (1); the sealing cover (62) is mounted on the top end of the medicine storage box (61); the water pump (63) is mounted on the bottom end of the medicine storage box (61); the medicine delivery pipe (64) is mounted on the bottom end of the water pump (63); and a plurality of rotating medicine spraying heads (65) are provided, and the plurality of rotating medicine spraying heads (65) are all mounted on the bottom end of the medicine delivery pipe (64).

10. A forestry surround weeding device according to claim 9, characterized in that: The water pump (63) is electrically connected to the controller (10), the drug delivery tube (64) is configured as a T-shaped structure, the rotary spray head (65) is configured as a herringbone structure, and the plurality of nozzles on the rotary spray head (65) are configured as inclined structures.

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