A tree planting device and method operable on a slope

Abstract

The present application relates to the technical field of tree planting, and particularly relates to a tree planting device and method capable of working on a slope. The tree planting device comprises a vehicle frame, a seedling conveying unit, a hole punching unit, a soil covering unit and an obstacle crossing unit. The seedling conveying unit, the hole punching unit and the soil covering unit are arranged in the vehicle frame, the seedling conveying unit is arranged above the hole punching unit, the soil covering unit is arranged behind the hole punching unit, the seedling conveying unit plants seedlings into the soil from the hole punching unit, and the soil covering unit covers the soil for the seedlings. The obstacle crossing unit comprises caterpillar belts arranged on both sides of the vehicle frame, one side of the caterpillar belts in the length direction is rotationally connected with the vehicle frame, and the caterpillar belts can rotate by a predetermined angle along the vehicle frame to compensate for the height difference of the slope. The present application solves the problem of tree planting on a slope.

Description

Technical Field

[0001] This invention relates to the field of tree planting technology, and in particular to a tree planting device and method that can be used on slopes. Background Technology

[0002] Afforestation plays a significant role in controlling desertified farmland, preventing wind erosion and sand fixation, and improving soil water retention capacity, thereby improving the ecological environment and reducing the risk of floods.

[0003] Although existing tree planting techniques can be implemented manually, large-scale planting activities require significant manpower, resources, and time, and are inefficient. While mechanized tree planting equipment exists, it is often limited to relatively flat ground, unable to plant on slopes or overcome certain small obstacles. This results in low planting efficiency, increased labor costs, and restricts the scale and effectiveness of tree planting efforts. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a tree-planting device that can operate on slopes.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] A tree planting device capable of operating on slopes includes: a frame, a seedling delivery unit, a drilling unit, a soil covering unit, and an obstacle-crossing unit; the seedling delivery unit, the drilling unit, and the soil covering unit are disposed within the frame, with the seedling delivery unit located above the drilling unit and the soil covering unit located behind the drilling unit; the seedling delivery unit plants the seedlings into the soil through the drilling unit, and the soil covering unit covers the seedlings with soil; the obstacle-crossing unit includes tracks disposed on both sides of the frame, one side of the tracks along the length direction being rotatably connected to the frame, and the tracks being able to rotate along the frame by a predetermined angle to compensate for the height difference of the slope.

[0007] Optionally, the obstacle-crossing unit further includes a fixing frame, which is disposed on both sides of the vehicle frame and fixedly connected to the vehicle frame. A ninth motor is fixedly installed on the fixing frame, and a second gear is installed on the output shaft of the ninth motor. A third gear is disposed on one side of the track along the length direction. The third gear is fixedly connected to the track and meshes with the second gear.

[0008] Optionally, a fixing plate is provided on the frame, and the seedling conveying unit includes a storage box and a sorting component. The storage box is disposed on the fixing plate and includes a box body with a V-shaped opening on the upper side. A baffle is provided inside the box body, and a sorting port of predetermined width is provided between the baffle and the box body. The sorting component includes a first motor and a conveying shaft. The first motor is mounted on the fixing plate, and the conveying shaft is rotatably mounted on the box body and located below the sorting port. The first motor drives the conveying shaft to rotate, and the conveying shaft is provided with a sorting groove along its peripheral wall.

[0009] Optionally, the lower side of the housing is provided with an opening slot, and the fixed plate is provided with a pushing assembly, which includes a fourth motor, a third crank, a first connecting rod, a push rod, and a first slide rail; the fourth motor is located on the lower side of the fixed plate, the third crank is located on the upper side of the fixed plate, one end of the third crank is connected to the fourth motor, and the other end is rotatably connected to the first connecting rod, the other end of the first connecting rod is rotatably connected to the push rod, the first slide rail is mounted on the fixed plate, and the push rod is slidably connected to the first slide rail and can slide along the opening slot.

[0010] Optionally, the seedling conveying unit further includes a seedling transfer assembly, which includes a first motor, a second motor, a first crank, a second crank, and a gripper; the first motor and the second motor are fixed on both sides of the frame, the first crank includes a first rod and a second rod at a predetermined angle, the second crank includes a third rod and a fourth rod rotatably connected, the first rod is fixedly connected to the first motor, the second rod is rotatably connected to the third rod, the fourth rod is fixedly connected to the second motor, and the gripper is disposed on the third rod, and when the third rod is horizontal, the gripper is located on the rear side of the box opening slot.

[0011] Optionally, the gripper includes a fixed base, a fixed gripper, a rotating gripper, and a fifth motor; the fixed base is mounted on the third rod, the fixed gripper is disposed on the fixed base and has a gripper groove, the rotating gripper is rotatably connected to the fixed base, and the fifth motor is mounted on the fixed base and can drive the rotating gripper to rotate and embed into the gripper groove.

[0012] Optionally, the vehicle frame is provided with a lifting unit, which includes a lifting plate, a sixth motor, a seventh motor and a lead screw; the sixth motor and the seventh motor are respectively installed on both sides of the vehicle frame, and the sixth motor and the seventh motor are rotatably connected to the lifting plate through a lead screw; the drilling unit and the soil covering unit are both installed on the lifting plate.

[0013] Optionally, the drilling unit includes a third motor, a first gear, and a drill bit. The third motor is fixedly mounted on the lifting plate, the first gear is rotatably mounted on the lifting plate, and the drill bit is fixedly connected to the first gear. The third motor drives the drill bit to rotate through the first gear, and both the first gear and the drill bit have a central hole.

[0014] Optionally, the soil covering unit includes an eighth motor, a fifth crank, a second connecting rod, a second slide rail, a slider, and a soil covering rod; the eighth motor is mounted on the lifting plate and connected to the fifth crank, each end of the fifth crank is rotatably connected to a second connecting rod, the other end of each second connecting rod is rotatably connected to the slider, the second slide rail is fixedly installed on the bottom side of the lifting plate, the slider is slidably connected to the second slide rail, and the lower side of the slider is connected to the soil covering rod, with a soil covering bowl installed at the bottom of the soil covering rod.

[0015] This invention also provides a tree planting method using the tree planting device described above that can work on a slope, comprising: adjusting the tracks on both sides of the frame at the same end so that the tracks are at a predetermined angle to the frame, forming a height difference with the tracks on both sides of the other end of the frame to compensate for the height difference of the slope; placing a seedling into the seedling delivery unit; drilling holes in the slope using a drilling device, planting the seedling into the slope through the drilling device; covering the seedling with soil using a soil covering unit, and covering the nth seedling with soil when the drilling device drills the (n+1)th hole.

[0016] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0017] The tree planting device of this invention achieves the crossing of small obstacles by controlling the track angle with a motor. Alternatively, by adjusting the different angles of the front and rear tracks, a height difference can be created between the front and rear tracks to compensate for the height difference of the slope, allowing the tree planting device to remain horizontal on the slope and achieving the purpose of stable planting on the slope.

[0018] Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the tree planting device according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the bottom of the track and the fixing frame according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the inner side of the track and the fixing frame according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the cooperation between the seedling delivery unit and the punching unit in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the storage box according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the front side of the storage box according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the rear side of the storage box according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the gripper according to an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the working process of the seedling transfer component according to an embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of the top of the soil covering unit according to an embodiment of the present invention;

[0030] Figure 11 This is a schematic diagram of the bottom of the soil covering unit according to an embodiment of the present invention;

[0031] Figure 12 This is a schematic diagram of the tree planting device overcoming obstacles according to an embodiment of the present invention;

[0032] Figure 13 This is a schematic diagram of the tree planting device in operation on a slope according to an embodiment of the present invention;

[0033] In the diagram: 1. Seedling conveying unit; 2. Drilling unit; 3. Soil covering unit; 4. Obstacle crossing unit; 101. Storage box; 102. Conveying shaft; 103. First motor; 104. Second motor; 105. First crank; 106. Second crank; 107. Pushing assembly; 108. Third motor; 109. First gear; 110. Drill bit; 111. Fourth motor; 112. Third crank; 113. First slide rail; 114. First... 115. Connecting rod; 116. Fifth motor; 117. Fixed gripper; 118. Rotating gripper; 119. Fixed base; 110. Sixth motor; 120. Seventh motor; 121. Eighth motor; 122. Fifth crank; 123. Second connecting rod; 124. Second slide rail; 125. Slider; 126. Soil covering rod; 128. Lead screw; 129. Ninth motor; 130. Second gear; 131. Third gear; 132. Fixed frame;

[0034] The distances or dimensions between parts have been exaggerated to show their positions; the diagram is for illustrative purposes only. Detailed Implementation

[0035] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] With the gradual reduction of forest resources, the scarcity of per capita forest area and forest stock has directly led to a series of serious ecological problems, such as desertification, soil erosion, drought, and floods, resulting in an ecological and environmental crisis. Therefore, afforestation plays a crucial role in ecological construction.

[0037] Afforestation not only helps maintain ecological balance but also helps solve many problems facing the ecological environment. Soil erosion is a major concern; areas lacking vegetation cover are prone to massive erosion of sediment during the rainy season, causing severe damage. Planting trees can effectively curb soil erosion because tree roots stabilize the soil, and trees absorb and store water, thus preventing soil erosion. Studies have shown that one acre of forest can store approximately 20 tons more water than unforested land. Afforestation plays a significant role in controlling desertified farmland, preventing wind erosion and sandstorms, and improving soil water retention capacity, thereby improving the ecological environment and mitigating the risk of floods.

[0038] Existing mechanized tree planting equipment is often limited to relatively flat ground, unable to plant on slopes while maintaining the vertical orientation of saplings, and also unable to overcome certain small obstacles. This leads to low planting efficiency, increased labor costs, and limits the scale and effectiveness of tree planting operations. To address these technical problems, this invention proposes a tree planting device that can operate on slopes, enabling efficient tree planting in various complex terrains while improving planting efficiency and reducing costs.

[0039] like Figures 1-13 As shown, one embodiment of the present invention proposes a tree planting device that can work on a slope, including: a frame, a seedling delivery unit 1, a drilling unit 2, a soil covering unit 3, and an obstacle crossing unit 4; the frame is constructed from assembled profiles and has an internal space, the seedling delivery unit 1, the drilling unit 2, and the soil covering unit 3 are disposed within the frame, the seedling delivery unit 1 is located above the drilling unit 2, and the soil covering unit 3 is located behind the drilling unit 2, the seedling delivery unit 1 plants the seedling into the soil through the drilling unit 2, and the soil covering unit 3 covers the seedling with soil; the obstacle crossing unit 4 includes tracks disposed on both sides of the frame, one side of the tracks along the length direction is rotatably connected to the frame, and the tracks can rotate along the frame at a predetermined angle to compensate for the height difference of the slope.

[0040] Specific examples Figure 2 , Figure 3 As shown, the obstacle-crossing unit 4 is connected to the vehicle frame via a fixing frame 132. The fixing frame 132 is located on both sides of the vehicle frame, and there are four fixing frames 132 in total. The four corners of the bottom of the vehicle frame are respectively mounted on the four fixing frames 132. A ninth motor 129 is fixedly mounted on the fixing frame 132. A second gear 130 is mounted on the output shaft of the ninth motor 129. A third gear 131 is provided on one side of the track along the length direction. The third gear 131 is fixedly connected to the track and meshes with the second gear 130.

[0041] The obstacle crossing unit 4 consists of four tracks (the tracks adopt existing technology; in this article, the track refers to the entire track assembly). Each of the four tracks is controlled by a separate motor, and turning is achieved through differential speed.

[0042] The obstacle-crossing process of the tree-planting device of the present invention is as follows: Figure 12 As shown, when encountering an obstacle, the ninth motor 129 rotates to control the track angle via gear transmission. By raising the track angle to contact and pass over the obstacle, the motor reverses to return the tracks to their original position. The tree-planting device operates on a slope as follows: Figure 13As shown, the tracks on both sides of the rear end of the vehicle frame are adjusted so that the tracks are at a predetermined angle to the vehicle frame, and a height difference is formed with the tracks on both sides of the front end of the vehicle frame to compensate for the height difference of the slope. That is, the vehicle body of the tree planting device is supported to be level by changing the track angle.

[0043] like Figure 4 As shown, the seedling delivery unit 1 includes a clip-type seedling ejection structure and a seedling transfer structure (i.e., a seedling transfer component). The clip-type seedling ejection structure can maximize the number of seedlings stored and improve space utilization.

[0044] like Figure 4 , Figure 5 As shown, a fixed plate is provided on the frame. The seedling conveying unit 1 includes a storage box 101 and a sorting assembly. The storage box 101 is mounted on the fixed plate and includes a box body with a V-shaped opening on the upper side for placing seedlings. A baffle is provided inside the box body, and a sorting opening of predetermined width is provided between the baffle and the box body, through which seedlings fall sequentially. The sorting assembly includes a first motor 103 and a conveying shaft 102. The first motor 103 is mounted on the fixed plate to drive the conveying shaft 102 to rotate. The conveying shaft 102 is rotatably mounted on the box body and located below the sorting opening. The first motor 103 drives the conveying shaft 102 to rotate, and the conveying shaft 102 has a sorting groove along its circumferential wall.

[0045] The staff first placed the seedlings on top of the storage box 101. The first motor 103 rotated and drove the conveyor shaft 102 to rotate through the belt. The seedlings were sorted by the narrow sorting port and the sorting groove on the conveyor shaft 102 to prevent the seedlings from accumulating in large quantities under the conveyor shaft 102 and affecting the operation of the pushing component 107.

[0046] like Figure 6 As shown, the lower side of the housing has an opening slot to allow for the movement of the pushing assembly 107. The pushing assembly 107 is mounted on the fixed plate. The pushing assembly 107 includes a fourth motor 111, a third crank 112, a first connecting rod 114, a push rod, and a first slide rail 113. The fourth motor 111 is located on the lower side of the fixed plate, and the third crank 112 is located on the upper side of the fixed plate. One end of the third crank 112 is connected to the fourth motor 111, and the other end is rotatably connected to the first connecting rod 114. The other end of the first connecting rod 114 is rotatably connected to the push rod. The first slide rail 113 is mounted on the fixed plate, and the push rod is slidably connected to the slide rail and can slide along the opening slot. The push rod is a gate-shaped insert rod with a beveled front end.

[0047] The fourth motor 111 drives the third crank 112 to rotate, the third crank 112 drives the first connecting rod 114 to swing, and the first connecting rod 114 drives the push rod to move on the first slide rail 113. The rotation of the fourth motor 111 drives the crank-slider 125 mechanism to drive the pushing component 107, which pushes the seedlings stored under the storage box 101 to the seedling transfer component in a bullet-like pattern.

[0048] like Figure 4 , Figure 7 As shown, the seedling transfer assembly includes a first motor 103, a second motor 104, a first crank 105, a second crank 106, and a gripper. The first motor 103 and the second motor 104 are fixed to both sides of the frame. The first crank 105 includes a first rod and a second rod at a predetermined angle. The second crank 106 includes a third rod and a fourth rod rotatably connected. The first rod is fixedly connected to the first motor 103, the second rod is rotatably connected to the third rod, and the fourth rod is fixedly connected to the second motor 104. The gripper is disposed on the third rod. When the third rod is horizontal, the gripper is located behind the opening slot of the housing. When the third rod is vertical, the gripper is located directly above the drilling unit 2 (the center hole of the first gear 109). The seedling transfer assembly adopts a double-crank mechanism, which can transfer the seedlings transported to the gripper by the spring-loaded seedling ejection structure from parallel placement to vertical placement, thereby transporting the seedlings into the holes drilled by the drilling device.

[0049] like Figure 8 As shown, two grippers are installed on the third member. Each gripper includes a fixed base 118, a fixed gripper 116, a rotating gripper 117, and a fifth motor 115. The fixed base 118 is mounted on the third member, and the fixed gripper 116 is disposed on the fixed base 118, having a gripper groove. The rotating gripper 117 is rotatably connected to the fixed base 118. The fifth motor 115 is mounted on the fixed base 118 and can drive the rotating gripper 117 to rotate and engage with the gripper groove. When the third member is horizontal, the rotating gripper 117 engages with the gripper groove. At this time, the seedling is pushed into the gripper by the pushing component 107, and the rotating gripper 117 rotates to grip the seedling. Then, the third member rotates from a horizontal to a vertical position. Figure 9 As shown, rotating the gripper 117 releases the sapling, and the sapling falls into the hole punched by the punching unit 2.

[0050] The frame is equipped with a lifting unit, which includes a lifting plate, a sixth motor 119, a seventh motor 120, and a lead screw 128. The sixth motor 119 and the seventh motor 120 are respectively installed on both sides of the frame, and the sixth motor 119 and the seventh motor 120 are rotatably connected to the lifting plate through a lead screw 128. Nuts that cooperate with the lead screw 128 are provided on both sides of the lifting plate. The drilling unit 2 and the soil covering unit 3 are both located on the lifting plate, thereby realizing the simultaneous drilling of holes for the previous sapling and soil covering of the next sapling.

[0051] The drilling unit 2 employs a crank mechanism, with a motor driving a pair of gears to rotate the drill bit 110. For example... Figure 4 As shown, the drilling unit 2 includes a third motor 108, a first gear 109, and a drill bit 110. The third motor 108 is fixedly mounted on the lifting plate, the first gear 109 is rotatably mounted on the lifting plate, and the drill bit 110 is fixedly connected to the first gear 109. The third motor 108 drives the drill bit 110 to rotate through the first gear 109, and both the first gear 109 and the drill bit 110 have a central hole. After the tree planting device travels to the predetermined position, the lifting plate drives the lead screw 128 to rotate, causing the drilling unit 2 to descend as a whole. At the same time, the third motor 108 rotates, driving the drill bit 110 to rotate through gear transmission to complete the drilling task.

[0052] The soil covering unit 3 consists of two sets of crank rods, which drive the soil-filling bowls at both ends to cover the soil, thus achieving the purpose of soil covering. For example... Figure 10 , Figure 11 As shown, the soil covering unit 3 includes an eighth motor 121, a fifth crank 122, a second connecting rod 123, a second slide rail 124, a slider 125, and a soil covering rod 126. The eighth motor 121 is mounted on the lifting plate and connected to the fifth crank 122. The two ends of the fifth crank 122 are rotatably connected to a second connecting rod 123, and the other end of each second connecting rod 123 is rotatably connected to the slider 125. The second slide rail 124 is fixedly installed on the bottom side of the lifting plate. The slider 125 is slidably connected to the second slide rail 124, and the lower side of the slider 125 is connected to the soil covering rod 126. A soil covering bowl is installed at the bottom of the soil covering rod 126.

[0053] The soil covering work and the hole-drilling and seedling delivery tasks are carried out simultaneously, resulting in a difference in sequence. When the planting device is drilling a hole for the second seedling, the soil covering unit 3 is simultaneously covering the first seedling with soil. The specific process is as follows: When the second seedling is being delivered, the sixth motor 119 and the seventh motor 120 drive the lead screw 128 to rotate, causing the drilling unit 2 and the soil covering unit 3 to descend as a whole. At the same time as the drilling is completed, the eighth motor 121 drives the fifth crank 122 to rotate, which drives the soil covering rod 126 to cover the seedling with soil through the two crank rod groups, thus completing the soil covering task.

[0054] The tree planting method of the above-mentioned tree planting device that can work on slopes is as follows:

[0055] After the tree planting device travels to the predetermined position, the staff places the saplings on top of the storage box 101. The first motor 103 rotates and drives the conveyor shaft 102 through the belt to sort the saplings, so as to prevent the saplings from piling up in large quantities under the conveyor shaft 102 and affecting the operation of the pushing component 107.

[0056] The lifting plate drives the lead screw 128 to rotate, causing the drilling unit 2 to descend as a whole. At the same time, the third motor 108 rotates, driving the drill bit 110 to rotate through gear transmission to complete the drilling task. The rotation of the fourth motor 111 drives the pushing component 107 through the crank-slider 125 mechanism, pushing the seedlings stored under the storage box 101 to the seedling transfer component in a bullet-like pattern.

[0057] The fifth motor 115 then rotates to clamp the sapling, and with the cooperation of the second motor 104, it changes the sapling from a horizontal to a vertical position. After reaching the vertical position, the fifth motor 115 rotates in the opposite direction and places the sapling into the pre-drilled hole through the center hole of the drill bit 110. After completion, the sixth motor 119 and the seventh motor 120 reverse and drive the lead screw 128 to rotate, causing the drilling unit 2 to rise as a whole, thus completing the drilling and sapling delivery task.

[0058] Finally, the soil covering task is performed simultaneously with the hole-drilling and seedling delivery tasks, but there is a difference in the order. While the planting device is drilling holes for the second seedling, the soil covering unit 3 is simultaneously covering the first seedling with soil. The specific process is as follows: When the second seedling is being delivered, the sixth motor 119 and the seventh motor 120 drive the lead screw 128 to rotate, causing the drilling unit 2 and the soil covering unit 3 to descend as a whole. At the same time as the drilling is completed, the eighth motor 121 drives the fifth crank 122 to rotate, which drives the soil covering rod 126 to cover the seedling with soil through the two crank rod groups, thus completing the soil covering task.

[0059] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A tree-planting device that can operate on slopes, characterized in that, include: The vehicle frame, seedling conveying unit, drilling unit, soil covering unit, and obstacle crossing unit; The seedling delivery unit, the drilling unit, and the soil covering unit are arranged inside the vehicle frame, with the seedling delivery unit located above the drilling unit and the soil covering unit located behind the drilling unit. The seedling delivery unit plants the seedlings into the soil through the drilling unit, and the soil covering unit covers the seedlings with soil. The obstacle-crossing unit includes tracks disposed on both sides of the vehicle frame. One side of the track along the length direction is rotatably connected to the vehicle frame. The track can compensate for the height difference of the slope by rotating the vehicle frame by a predetermined angle. The obstacle-crossing unit also includes a fixed frame, which is disposed on both sides of the vehicle frame and fixedly connected to the vehicle frame. A ninth motor is fixedly installed on the fixed frame, and a second gear is installed on the output shaft of the ninth motor. A third gear is disposed on one side of the track along the length direction. The third gear is fixedly connected to the track and meshes with the second gear. The vehicle frame is equipped with a lifting unit, which includes a lifting plate, a sixth motor, a seventh motor, and a lead screw. The sixth motor and the seventh motor are respectively installed on both sides of the vehicle frame, and the sixth motor and the seventh motor are rotatably connected to the lifting plate through a lead screw. The drilling unit and the soil covering unit are both installed on the lifting plate.

2. The tree planting device that can work on slopes as described in claim 1, characterized in that, The frame is equipped with a fixing plate. The seedling conveying unit includes a storage box and a sorting component. The storage box is mounted on the fixing plate and includes a box body with a V-shaped opening on the upper side. A baffle is provided inside the box body, and a sorting slot of predetermined width is provided between the baffle and the box body. The sorting component includes a first motor and a conveying shaft. The first motor is mounted on the fixing plate, and the conveying shaft is rotatably mounted on the box body and located below the sorting slot. The first motor drives the conveying shaft to rotate, and the conveying shaft has a sorting groove along its peripheral wall.

3. The tree planting device that can work on slopes as described in claim 2, characterized in that, An opening slot is provided on the lower side of the housing, and a pushing assembly is provided on the fixed plate. The pushing assembly includes a fourth motor, a third crank, a first connecting rod, a push rod, and a first slide rail. The fourth motor is located on the lower side of the fixed plate, and the third crank is located on the upper side of the fixed plate. One end of the third crank is connected to the fourth motor, and the other end is rotatably connected to the first connecting rod. The other end of the first connecting rod is rotatably connected to the push rod. The first slide rail is mounted on the fixed plate, and the push rod is slidably connected to the first slide rail and can slide along the opening slot.

4. The tree planting device that can work on slopes as described in claim 3, characterized in that, The seedling conveying unit also includes a seedling transfer assembly, which includes a first motor, a second motor, a first crank, a second crank, and a gripper. The first motor and the second motor are fixed on both sides of the frame. The first crank includes a first rod and a second rod at a predetermined angle. The second crank includes a third rod and a fourth rod that are rotatably connected. The first rod is fixedly connected to the first motor, the second rod is rotatably connected to the third rod, and the fourth rod is fixedly connected to the second motor. The gripper is disposed on the third rod, and when the third rod is horizontal, the gripper is located behind the opening slot of the housing.

5. The tree planting device that can work on slopes as described in claim 4, characterized in that, The gripper includes a fixed base, a fixed gripper, a rotating gripper, and a fifth motor; the fixed base is mounted on the third rod, the fixed gripper is disposed on the fixed base and has a gripper groove, the rotating gripper is rotatably connected to the fixed base, and the fifth motor is mounted on the fixed base and can drive the rotating gripper to rotate and embed into the gripper groove.

6. The tree planting device that can work on slopes as described in claim 1, characterized in that, The drilling unit includes a third motor, a first gear, and a drill bit. The third motor is fixedly mounted on the lifting plate, the first gear is rotatably mounted on the lifting plate, and the drill bit is fixedly connected to the first gear. The third motor drives the drill bit to rotate through the first gear, and both the first gear and the drill bit have a central hole.

7. The tree planting device that can work on slopes as described in claim 1, characterized in that, The soil covering unit includes an eighth motor, a fifth crank, a second connecting rod, a second slide rail, a slider, and a soil covering rod. The eighth motor is mounted on the lifting plate and connected to the fifth crank. The two ends of the fifth crank are rotatably connected to a second connecting rod, and the other end of each second connecting rod is rotatably connected to the slider. The second slide rail is fixedly installed on the bottom side of the lifting plate. The slider is slidably connected to the second slide rail, and the lower side of the slider is connected to the soil covering rod. A soil covering bowl is installed at the bottom of the soil covering rod.

8. A tree-planting method using a tree-planting device capable of working on slopes as described in any one of claims 1-7, characterized in that, include: Adjust the tracks on both sides of the frame at the same end so that the tracks are at a predetermined angle to the frame, and form a height difference with the tracks on both sides of the other end of the frame to compensate for the height difference of the slope. Place the seedlings into the seedling delivery unit; The drilling device drills holes on the west slope, and the saplings are planted on the slope through the drilling device. The soil covering unit covers the saplings with soil, and when the drilling device drills the (n+1)th hole, the soil covering unit covers the nth sapling.

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