Forestry tree sample collecting device

Abstract

The invention belongs to the technical field of sample collection, and particularly relates to a forestry tree sample collection device which comprises a driving assembly and a collection assembly installed at the top of the driving assembly, the driving assembly comprises a protective shell and a motor fixedly installed in the protective shell, and the output end of the motor is in transmission connection with a driving wheel; the collecting assembly comprises a fixing seat fixedly installed at the top of the protective shell, two fixing frames are fixedly installed on the fixing seat, branches located between a fixed cutter and a movable cutter are cut off, the whole device can be lifted to a higher height through the driving assembly, and therefore branch samples at the higher position can be collected; the collection range of the sample can be expanded; meanwhile, a limiting frame in the collecting assembly and related assemblies on a U-shaped frame can fix the device on branches, meanwhile, the branches are fixed, and the branches are prevented from shaking in the shearing process.

Description

Technical Field

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

[0002] In the field of forestry, it is necessary to pay attention to the growth of trees. You can collect samples of various parts of trees such as leaves, branches, flowers, fruits or roots to collect relevant growth data of trees. You can also collect soil for testing to predict the growth environment of trees. Since collecting tree branches as samples has little effect on the growth of trees and can obtain tree leaves at the same time, tree branches are usually collected as preliminary test samples, and a collection device is used to collect tree branch samples.

[0003] After searching, the patent with publication number CN116448478A discloses a forestry large tree sample collection device, including a U-shaped seat plate, a trunk clamping and positioning device is arranged on the top of the U-shaped seat plate, the trunk clamping and positioning device includes a self-determining height translation driving component, a positioning frame arranged at the execution end of the self-determining height translation driving component, and a semicircular slide rail whose outer wall is connected to the positioning frame; a sampling radius adjustment device is arranged on the outer wall of the semicircular slide rail, and the sampling radius adjustment device includes a semicircular swivel and a toothed wall ring arranged on the outer wall of the semicircular swivel; a radius positioning device is arranged on the side wall of the semicircular swivel, and the radius positioning device includes a telescopic component, a positioning plate arranged at the execution end of the telescopic component, an inclination adjustment component arranged on the top of the positioning plate, a driving cylinder arranged at the execution end of the inclination adjustment component, and a stepping motor arranged at the execution end of the driving cylinder; a leaf picking device is arranged at the execution end of the stepping motor.

[0004] The above-mentioned collecting device can collect leaves from large trees, and the way of collecting leaves is to raise the collecting component through an electric push rod or a similar method. This collecting method is affected by the range of the push rod and cannot collect high branches or leaves. For tall trees, this collecting method will also be greatly limited. Summary of the invention

[0005] The object of the present invention is to provide a forestry tree sample collection device to solve the problems raised in the above-mentioned prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a forestry tree sample collection device, comprising a driving component and a collection component installed on the top of the driving component, wherein the driving component comprises a protective shell and a motor fixedly installed in the protective shell, the output end of the motor is connected to a driving wheel in a transmission manner, the collection component comprises a fixing seat fixedly installed on the top of the protective shell, two fixing frames are fixedly installed on the fixing seat, the tops of the two fixing frames are respectively fixedly connected with an electric hydraulic push rod and a fixed cutter, the output end of the electric hydraulic push rod is fixedly connected with a mobile cutter, and when the mobile cutter moves toward the fixed cutter, the branch located between the fixed cutter and the mobile cutter is cut off; A piston cylinder is fixedly installed on the top of the fixed seat, a sliding rod is inserted in the piston cylinder, a U-shaped frame is fixedly connected to the top of the sliding rod, one side of the U-shaped frame is rotatably connected to a limit baffle through a torsion spring, and the other side wall of the U-shaped frame is fixedly connected to a fixed plate, which limits the limit baffle from rotating upward; An elastic coil is fixedly connected between the bottom of the sliding rod and the bottom of the piston cylinder, a U-shaped sac is fixedly connected to the inner side of the U-shaped frame, and connecting grooves connected to the U-shaped sac are provided on both sides of the U-shaped frame. The sliding rod is a hollow structure, and the sliding rod and the connecting groove are connected to each other. As the sliding rod descends, the gas in the piston cylinder passes through the sliding rod and enters the U-shaped sac through the connecting groove.

[0007] Furthermore, a mounting seat is fixedly connected to the top of the fixing seat, the mounting seat is located between two fixing frames, a slot is opened on the top of the mounting seat, and a pressure slider is slidably inserted in the slot of the mounting seat, and a spring is fixedly connected between the pressure slider and the slot of the mounting seat.

[0008] Furthermore, a switch is fixedly connected to the bottom wall of the slot of the mounting seat, and when the collecting assembly as a whole rises along with the driving assembly, the branches contact the pressure slider and press the pressure slider downward until the pressure slider completely presses the switch.

[0009] Furthermore, auxiliary components are installed on both side walls of the protective shell, and the auxiliary components include a rotating head symmetrically rotatably connected to the two side walls of the protective shell, one end of the rotating head is fixedly connected to an elastic telescopic rod, one end of the elastic telescopic rod is fixedly connected to a mounting frame, the mounting frame is rotatably connected to a roller on the side facing the driving wheel, the outer side of the mounting frame is fixedly connected, and a nut is movably inserted into the internal thread, and the two mounting frames are connected by the nut.

[0010] Furthermore, the driving wheel is rotatably connected to a plurality of rotating plugs via a torsion spring. Under the elastic support of the torsion spring, the rotating plugs extend outwardly at an angle relative to the driving wheel. A plurality of limiting bevel blocks are fixedly connected to the circumferential side of the driving wheel corresponding to the position of the rotating plugs. The limiting bevel blocks limit the outward tilt angle of the driving wheel.

[0011] Furthermore, two limit frames are symmetrically fixedly connected to the top of the fixed seat, and the two limit frames are rotatably connected to a movable baffle on one side facing each other through a torsion spring. Under the elastic support of the torsion spring, the movable baffle is horizontally distributed, and the top of the limit frame is fixedly connected to a fixed shell, and an inclined force block is slidably inserted in the fixed shell, and a spring is fixedly connected between the inclined force block and the fixed shell, and the spring between the fixed shell and the inclined force block provides resistance support for the upward rotation of the movable baffle.

[0012] Furthermore, two slot frames are fixedly connected to the top of the fixed seat, and a slide groove is opened on the slot frame. Two elastic connecting strips are slidably inserted into the slot frame through the slide groove. A support strip is fixedly connected between the two ends of the two elastic connecting strips. The two elastic connecting strips and the two support strips together form a rectangular space, and a gathering net is fixedly installed in the rectangular space. The bottom wall of the slide groove is inclined downward.

[0013] Furthermore, a fixing box and a supplementing box are fixedly installed on the top of the fixing seat, the bottom plate of the fixing box is fixedly connected with an elastic capsule, the top of the elastic capsule is fixedly connected with an insert plate, the insert plate has a bottom plate for pressing the elastic capsule, and the insert plate is a cavity structure, a connecting pipe is fixedly connected through the bottom of the insert plate, the connecting pipe connects the elastic capsule with the cavity of the insert plate, two supporting bars are symmetrically fixedly connected to the top of the two side walls of the insert plate, a plurality of spray holes are opened on the top plate of the insert plate, and a one-way valve is installed between the supplementing box and the elastic capsule.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention can make the device as a whole rise to a higher height through the driving component, so that branch samples at a higher position can be collected, and the collection range of the samples can be expanded by cooperating with the collection component; at the same time, the limit frame in the collection component and the related components on the U-shaped frame can fix the present invention on the branch, thereby fixing the branch and preventing the branch from shaking during the shearing process; The elastic coil and other related components in the collection component can bend the branch and move the middle part of the branch downward, so that the branch is in a tight state as a whole, thereby improving the fixing effect of the branch; in addition, the middle position of the branch is fixed, so that the fixed cutter and the movable cutter can better cut the middle position of the branch; By using the elastic connecting strips and other related components in the collection component, when the branches are forced to bend, the elastic connecting strips can slide out of the slot rack and gather the branches, thereby fixing and protecting the branches and preventing the tree samples from scattering after collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A schematic diagram of the internal structure and auxiliary components of the driving component of the present invention; Figure 3 It is a structural schematic diagram of the acquisition component of the present invention; Figure 4 It is a structural schematic diagram of the limiting frame of the present invention; Figure 5 It is a schematic diagram of the internal structure of the piston cylinder of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at A in the middle; Figure 7 It is a schematic diagram of the internal structure of the fixing box of the present invention; Figure 8 It is a schematic diagram of the internal structure of the mounting base of the present invention; Fig. 9 It is a schematic diagram of the separation and isolation of the elastic connecting strip and the slot frame of the present invention.

[0017] In the figure: 1. driving assembly; 101. protective shell; 102. motor; 103. driving wheel; 104. rotating insert; 105. limiting inclined plane block; 2. auxiliary assembly; 201. rotating head; 202. elastic telescopic rod; 203. mounting frame; 204. roller; 205. threaded insert; 3. collecting assembly; 301. fixing seat; 302. fixing frame; 303. electric hydraulic push rod; 304. one-way valve; 305. fixed cutter; 306. movable cutter; 307. mounting seat; 308. pressure slide block; 309. switch ; 310, limit frame; 311, movable baffle; 312, fixed shell; 313, inclined force block; 314, piston cylinder; 315, slide rod; 316, U-shaped frame; 317, U-shaped capsule; 318, limit baffle; 319, fixed plate; 320, connecting groove; 321, slot frame; 322, slide groove; 323, support bar; 324, elastic connecting strip; 325, plug plate; 326, connecting pipe; 327, support bar; 328, supplement box; 329, elastic coil; 330, fixed box; 331, elastic capsule. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] Reference Figures 1 to 9 A forestry tree sample collection device comprises a driving component 1 and a collection component 3 installed on the top of the driving component 1, the driving component 1 comprises a protective shell 101 and a motor 102 fixedly installed in the protective shell 101, the output end of the motor 102 is drivingly connected to a driving wheel 103, the collection component 3 comprises a fixing seat 301 fixedly installed on the top of the protective shell 101, two fixing frames 302 are fixedly installed on the fixing seat 301, the tops of the two fixing frames 302 are respectively fixedly connected with an electric hydraulic push rod 303 and a fixed cutter 305, the output end of the electric hydraulic push rod 303 is fixedly connected with a mobile cutter 306, when the mobile cutter 306 moves toward the fixed cutter 305, the branches between the fixed cutter 305 and the mobile cutter 306 are cut off.

[0021] Specifically, the top of the fixed seat 301 is fixedly connected to the mounting seat 307, the mounting seat 307 is located between the two fixed frames 302, a slot is opened on the top of the mounting seat 307, and a pressure slider 308 is slidably inserted in the slot of the mounting seat 307, and a spring is fixedly connected between the pressure slider 308 and the slot of the mounting seat 307.

[0022] Specifically, a switch 309 is fixedly connected to the bottom wall of the slot of the mounting seat 307. When the collecting assembly 3 as a whole rises with the driving assembly 1, the branches contact the pressure slider 308 and press the pressure slider 308 downward until the pressure slider 308 completely presses the switch 309 down.

[0023] Specifically, auxiliary components 2 are installed on both side walls of the protective shell 101, and the auxiliary components 2 include a rotating head 201 symmetrically rotatably connected to the two side walls of the protective shell 101, one end of the rotating head 201 is fixedly connected to an elastic telescopic rod 202, one end of the elastic telescopic rod 202 is fixedly connected to a mounting frame 203, the mounting frame 203 is rotatably connected to a roller 204 on one side of the driving wheel 103, a threaded plug 205 is fixedly connected to the outer side of the mounting frame 203, a nut is movably inserted into the inner thread of the threaded plug 205, and the two threaded plugs 205 are connected by the nut to connect the two mounting frames 203.

[0024] When collecting tree samples, first open the two mounting frames 203 so that the two elastic telescopic rods 202 surround the periphery of the tree trunk, then make the driving wheel 103 close to the tree trunk, and stretch the mounting frame 203 so that the mounting frame 203 and the driving wheel 103 are in relative positions, and then the two mounting frames 203 are tightly attached together, and then bolts or nuts are passed through the two threaded plug blocks 205, and the two threaded plug blocks 205 are fixed with bolts or nuts, so that the roller 204 on the mounting frame 203 is close to the tree trunk, wherein the shape of the elastic telescopic rod 202 can be arc-shaped or straight, and an elastic arc-shaped plate can also be used to replace the elastic telescopic rod 202. The arc-shaped elastic telescopic rod 202 can expand the range around the tree trunk. When a straight elastic telescopic rod 202 is used, the trunk diameter of the tree cannot exceed the distance between the two elastic telescopic rods 202. This type of shape replacement is predictable by those skilled in the art, so the shape of the elastic telescopic rod 202 is not further limited.

[0025] After the two mounting frames 203 are connected, the motor 102 is started to rotate the driving wheel 103, driving the entire device to move upward rapidly. When the protective shell 101 and the fixing seat 301 move to the bottom of the tree branches to be collected, while the pressure slider 308 is in contact with the branches, the pressure slider 308 descends in the mounting seat 307 and presses the switch 309. After the switch 309 is triggered, the motor 102 is powered off, and the entire device cannot continue to rise. At the same time, the electric hydraulic push rod 303 is started to move the mobile cutter 306 toward the fixed cutter 305, pressing and cutting the tree branches to break the branches. At this time, the tree samples can be collected. Therefore, under the drive of the driving component 1, the collecting component 3 can move to a higher tree to collect the required tree branches as samples, or collect branches at different heights on the same tree as samples, thereby expanding the sample collection range.

[0026] Specifically, the driving wheel 103 is rotatably connected to a plurality of rotating plugs 104 via torsion springs. Under the elastic support of the torsion springs, the rotating plugs 104 extend outwardly and tilt relative to the driving wheel 103. A plurality of limiting ramp blocks 105 are fixedly connected to the circumferential side of the driving wheel 103 at positions corresponding to the rotating plugs 104. The limiting ramp blocks 105 limit the outward tilt angle of the driving wheel 103.

[0027] During the rotation of the driving wheel 103, the rotating plug 104 will be inserted into the tree or embedded in the tree to increase the adhesion between the entire device and the trunk of the tree. The adhesion can make it difficult for the entire device to slide, so that the present invention can move upward smoothly and quickly. At the same time, in order for the entire device to be able to move stably on the trunk of the tree, a ratchet mechanism can be installed on the side of the driving wheel 103. When the motor 102 is powered off, the ratchet mechanism limits the rotation of the driving wheel 103 so that it can still hang on the trunk of the tree to prevent the device from falling.

[0028] Specifically, two limit frames 310 are symmetrically fixedly connected to the top of the fixed seat 301, and the two limit frames 310 are rotatably connected to the movable baffle 311 on one side facing each other through a torsion spring. Under the elastic support of the torsion spring, the movable baffle 311 is horizontally distributed, and the top of the limit frame 310 is fixedly connected to a fixed shell 312, and an inclined force block 313 is slidably inserted in the fixed shell 312. A spring is fixedly connected between the inclined force block 313 and the fixed shell 312, and the spring between the fixed shell 312 and the inclined force block 313 provides resistance support for the upward rotation of the movable baffle 311.

[0029] Specifically, a piston cylinder 314 is fixedly installed on the top of the fixed seat 301, a sliding rod 315 is inserted in the piston cylinder 314, a U-shaped frame 316 is fixedly connected to the top of the sliding rod 315, one side of the U-shaped frame 316 is rotatably connected to a limit baffle 318 through a torsion spring, and the other side wall of the U-shaped frame 316 is fixedly connected to a fixed plate 319, which can limit the limit baffle 318 from rotating upward.

[0030] During the rising process of the fixed seat 301, since the limiting frame 310 is close to the edge of the fixed seat 301, the limiting frame 310 can be in contact with the connection between the branch and the trunk at the earliest. At the same time, since the piston cylinder 314 and the sliding rod 315 provide the U-shaped frame 316 with a height higher than the limiting frame 310, the U-shaped frame 316 can also be in contact with the branch.

[0031] When the limiting frame 310 rises to a certain height, the connection between the branch and the trunk will be inserted between the two limiting frames 310 and press the movable baffle 311 to rotate downward. After the branch is fully inserted into the limiting frame 310, the two movable baffles 311 rotate upward under the elastic support of the torsion spring and press against the top of the branch. Correspondingly, after rising to a certain height, the limiting baffle 318 on the U-shaped frame 316 is pressed down by the branch. After the branch is fully inserted into the U-shaped frame 316, the limiting baffle 318 rotates upward and It rests against the bottom of the fixed plate 319, thereby fixing the position of the branch to a certain extent, and when the motor 102 is powered off, the device as a whole can be suspended on the branch under the support of the limit baffle 318 and the movable baffle 311 to prevent the device as a whole from falling. At this time, the branch will be bent to a certain extent due to the gravity of the device as a whole. During the process of the fixed cutter 305 and the movable cutter 306 shearing the branch, the branch remains in a taut state, so that the branch is not easy to shake when being sheared, so as to ensure the shearing effect.

[0032] After the shearing is completed, since the branches are cut off, the two movable baffles 311 bear the weight of the entire device alone. Under the action of the gravity of the entire device, the gravity borne by the movable baffle 311 increases rapidly, and the squeezing force on the inclined surface force block 313 increases rapidly, causing the inclined surface force block 313 to retract into the fixed shell 312. At this time, the movable baffle 311 will rotate upward to release the restriction on the branches, and the entire device will slide down under the action of its own gravity, causing the device to drive the branches down together.

[0033] Specifically, an elastic coil 329 is fixedly connected between the bottom of the slide rod 315 and the bottom of the piston cylinder 314, a U-shaped capsule 317 is fixedly connected to the inner side of the U-shaped frame 316, and connecting grooves 320 connected to the U-shaped capsule 317 are provided on both sides of the U-shaped frame 316. The slide rod 315 is a hollow structure, and the slide rod 315 and the connecting groove 320 are connected to each other. As the slide rod 315 descends, the gas in the piston cylinder 314 passes through the slide rod 315 and enters the U-shaped capsule 317 through the connecting groove 320.

[0034] When the branch is pressed down and the switch 309 is triggered, the elastic coil 329 is energized. According to Ampere's law or the right-hand screw rule, each turn of the elastic coil 329 will generate a magnetic field that is arranged in the same manner and connected in the first place, and the magnetic field is vertically distributed with each turn of the elastic coil 329, so that each turn of the elastic coil 329 can attract each other and pull the slide bar 315 down, driving the U-shaped frame 316 on the top of the slide bar 315 to drop together, so that the branch is bent, and the middle part of the branch is firmly pressed on the top of the mounting seat 307, thereby fixing the middle part of the branch and making it fixed. The cutter 305 and the movable cutter 306 can better shear the branches, and in this process, the sliding rod 315 descends, which allows the gas in the piston cylinder 314 to enter the U-shaped capsule 317 through the sliding rod 315 and the connecting groove 320, so that the U-shaped capsule 317 expands and has a tightening effect on the branches. After the fixed cutter 305 and the movable cutter 306 complete the shearing of the branches, the branches can still be clamped in the U-shaped capsule 317. After the driving component 1 descends, the branches can be driven to descend together to prevent the branches from falling and breaking or the leaves from scattering, so as to ensure the integrity of the tree samples.

[0035] Specifically, two slot frames 321 are fixedly connected to the top of the fixed seat 301, and a slide groove 322 is opened on the slot frame 321. Two elastic connecting strips 324 are slidably inserted into the slot frame 321 through the slide groove 322. A support strip 323 is fixedly connected between the two ends of the two elastic connecting strips 324. The two elastic connecting strips 324 and the two support strips 323 together form a rectangular space, and a gathering net is fixedly installed in the rectangular space. The bottom wall of the slide groove 322 is inclined downward. When the elastic connecting strip 324 slides out of the slide groove 322, the elastic connecting strip 324 returns to a round shape under the action of its own elasticity and is wrapped around the branch.

[0036] During the descent of the slide bar 315, the branches will generate downward pressure on the elastic connecting strip 324. As the elastic connecting strip 324 is continuously pressed downward, the elastic connecting strip 324 will slide out from the inclined bottom wall of the slide groove 322. After the elastic connecting strip 324 slides out of the slide groove 322, it quickly returns to a circle under the action of its own elastic force and wraps around the branches and the leaves on the branches, so that the support strip 323 and the gathering net on the elastic connecting strip 324 are covered outside the branches and the branches and leaves on the branches are gathered, so that the branches and leaves are not easily scattered during the falling process of the branches, thereby playing a role in fixing and protecting the tree samples.

[0037] Specifically, a fixing box 330 and a replenishing box 328 are fixedly installed on the top of the fixing seat 301, the bottom plate of the fixing box 330 is fixedly connected with an elastic capsule 331, the top of the elastic capsule 331 is fixedly connected with an insert plate 325, the insert plate 325 has a bottom plate for pressing the elastic capsule 331, and the insert plate 325 is a cavity structure, a connecting pipe 326 is fixedly connected through the bottom of the insert plate 325, the connecting pipe 326 connects the elastic capsule 331 with the cavity of the insert plate 325, two supporting bars 327 are symmetrically fixedly connected to the top of the two side walls of the insert plate 325, a plurality of spray holes are opened on the top plate of the insert plate 325, and a one-way valve 304 is installed between the replenishing box 328 and the elastic capsule 331.

[0038] As the slide bar 315 descends, the middle part of the branch continuously moves downward and presses on the supporting bar 327, so that the plug plate 325 presses the elastic capsule 331 and squeezes the protective liquid in the elastic capsule 331 into the plug plate 325 through the connecting pipe 326. As the pressure continues to increase, the internal pressure of the elastic capsule 331 continues to increase. However, due to the small diameter of the connecting pipe 326, the internal pressure of the elastic capsule 331 can only be released slowly. Therefore, when the fixed cutter 305 and the movable cutter 306 perform shearing operations, the spray hole on the top of the plug plate 325 can continuously spray the protective liquid onto the broken part of the branch, thereby protecting the broken part of the branch and preventing the branch from being invaded by pests and diseases after shearing.

[0039] After the shearing is completed, the device as a whole slides down, and the elastic bladder 331 gradually recovers, and the protective liquid in the replenishment box 328 is sucked into the elastic bladder 331 through the one-way valve 304, thereby replenishing the protective liquid.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A forestry tree sample collection device, comprising a drive assembly (1) and a collection assembly (3) mounted on the top of the drive assembly (1), the drive assembly (1) comprising a protective shell (101) and a motor (102) fixedly mounted in the protective shell (101), the output end of the motor (102) being drivingly connected to a drive wheel (103), characterized in that: The collecting assembly (3) comprises a fixing seat (301) fixedly mounted on the top of the protective shell (101); two fixing frames (302) are fixedly mounted on the fixing seat (301); the tops of the two fixing frames (302) are respectively fixedly connected with an electric hydraulic push rod (303) and a fixed cutter (305); the output end of the electric hydraulic push rod (303) is fixedly connected with a movable cutter (306); when the movable cutter (306) moves toward the fixed cutter (305), it cuts off branches between the fixed cutter (305) and the movable cutter (306); A piston cylinder (314) is fixedly mounted on the top of the fixed seat (301), a sliding rod (315) is inserted into the piston cylinder (314), a U-shaped frame (316) is fixedly connected to the top of the sliding rod (315), one side of the U-shaped frame (316) is rotatably connected to a limit baffle (318) via a torsion spring, and the other side wall of the U-shaped frame (316) is fixedly connected to a fixing plate (319), and the fixing plate (319) limits the limit baffle (318) from rotating upward; An elastic coil (329) is fixedly connected between the bottom of the slide rod (315) and the bottom of the piston cylinder (314); a U-shaped capsule (317) is fixedly connected to the inner side of the U-shaped frame (316); connecting grooves (320) connected to the U-shaped capsule (317) are provided on both sides of the U-shaped frame (316); the slide rod (315) is a hollow structure, and the slide rod (315) and the connecting groove (320) are connected to each other; as the slide rod (315) descends, the gas in the piston cylinder (314) passes through the slide rod (315) and enters the U-shaped capsule (317) through the connecting groove (320).

2. A forestry tree sample collection device according to claim 1, characterized in that: A mounting seat (307) is fixedly connected to the top of the fixing seat (301), the mounting seat (307) is located between the two fixing frames (302), a slot is provided on the top of the mounting seat (307), a pressure-bearing slider (308) is slidably inserted into the slot of the mounting seat (307), and a spring is fixedly connected between the pressure-bearing slider (308) and the slot of the mounting seat (307).

3. A forestry tree sample collection device according to claim 2, characterized in that: A switch (309) is fixedly connected to the bottom wall of the slot of the mounting seat (307), and when the collecting assembly (3) as a whole rises along with the driving assembly (1), the branches contact the pressure slider (308) and press the pressure slider (308) downward until the pressure slider (308) completely presses the switch (309).

4. A forestry tree sample collection device according to claim 3, characterized in that: Auxiliary components (2) are installed on both side walls of the protective shell (101), and the auxiliary components (2) include a rotating head (201) symmetrically rotatably connected to the two side walls of the protective shell (101); one end of the rotating head (201) is fixedly connected to an elastic telescopic rod (202); one end of the elastic telescopic rod (202) is fixedly connected to a mounting frame (203); a roller (204) is rotatably connected to one side of the mounting frame (203) facing the driving wheel (103); a threaded plug (205) is fixedly connected to the outside of the mounting frame (203); a nut is movably inserted into the inner thread of the threaded plug (205); two threaded plugs (205) are connected together by the nut, so that the two mounting frames (203) are connected.

5. A forestry tree sample collection device according to claim 4, characterized in that: The driving wheel (103) is rotatably connected to a plurality of rotating inserts (104) via a torsion spring; under the elastic support of the torsion spring, the rotating inserts (104) are tilted and extended outward relative to the driving wheel (103); a plurality of limiting inclined plane blocks (105) are fixedly connected to the circumferential side of the driving wheel (103) at positions corresponding to the rotating inserts (104); the limiting inclined plane blocks (105) limit the angle at which the driving wheel (103) tilts outward.

6. A forestry tree sample collection device according to claim 5, characterized in that: Two limit frames (310) are symmetrically fixedly connected to the top of the fixed seat (301); the two limit frames (310) are rotatably connected to a movable baffle (311) on one side facing each other via a torsion spring; the movable baffle (311) is horizontally distributed under the elastic support of the torsion spring; a fixed shell (312) is fixedly connected to the top of the limit frame (310); an inclined surface force block (313) is slidably inserted in the fixed shell (312); a spring is fixedly connected between the inclined surface force block (313) and the fixed shell (312); and the spring between the fixed shell (312) and the inclined surface force block (313) provides resistance support for the upward rotation of the movable baffle (311).

7. A forestry tree sample collection device according to claim 6, characterized in that: The top of the fixed seat (301) is fixedly connected to two slot frames (321), the slot frames (321) are provided with slide grooves (322), the slot frames (321) are slidably inserted with two elastic connecting strips (324) through the slide grooves (322), a supporting strip (323) is fixedly connected between the two ends of the two elastic connecting strips (324), the two elastic connecting strips (324) and the two supporting strips (323) together enclose a rectangular space, and a gathering net is fixedly installed in the rectangular space, and the bottom wall of the slide groove (322) is inclined downward.

8. A forestry tree sample collection device according to claim 7, characterized in that: A fixing box (330) and a supplement box (328) are fixedly mounted on the top of the fixing seat (301); an elastic capsule (331) is fixedly connected to the bottom plate of the fixing box (330); a plug plate (325) is fixedly connected to the top of the elastic capsule (331); the plug plate (325) has a bottom plate for pressing the elastic capsule (331); the plug plate (325) is a cavity structure; a connecting pipe (326) is fixedly connected through the bottom of the plug plate (325); the connecting pipe (326 connects the elastic capsule (331) with the cavity of the plug plate (325); two supporting bars (327) are symmetrically fixedly connected to the tops of the two side walls of the plug plate (325); a plurality of spray holes are opened on the top plate of the plug plate (325); and a one-way valve (304) is installed between the supplement box (328) and the elastic capsule (331) so as to be connected together.

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