Pit digging device for tree planting

Abstract

The invention relates to the technical field of tree planting, in particular to a pit digging device for tree planting, which comprises a vehicle body, a guide frame, a lifting plate, a soil taking guide rod, a soil taking spring, a soil collecting frame, a soil collecting cylinder and the like, a guide frame is fixedly connected to the vehicle body, a lifting plate is slidably connected to the guide frame, a spiral drill rod is rotatably connected to the lifting plate, a main motor used for driving the spiral drill rod is fixedly connected to the lifting plate, a soil taking guide rod is slidably connected to the lifting plate, a soil collecting frame and a soil collecting box are fixedly connected to the soil taking guide rod, and the soil collecting frame is communicated with the soil collecting box. A soil collecting barrel is fixedly connected to the soil collecting frame and used for guiding soil so that the spiral drill rod can lift the soil upwards into the soil collecting frame. According to the device, dug soil can be collected into the soil collecting box, and when a next pit is dug, the backfilling mechanism can backfill the collected soil into a previous pit, so that the backfilling of the previous pit is realized in the pit digging process, the physical labor of workers is reduced, and the tree planting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tree planting, and in particular to a pit digging device for tree planting. Background Art

[0002] In landscaping, it is usually necessary to plant trees. Before planting trees, a hole digger is used to dig a hole at the target location, and then the tree to be planted is placed in the hole, and the roots of the tree are buried to complete the planting of the tree.

[0003] In the related art, the Chinese patent document with patent announcement number CN116616007B discloses a landscape gardening construction planting and digging device, including a crawler group, the crawler group is composed of a base, a movable wheel group and a crawler, a swingable control group is arranged above the base, and horizontally extendable digging groups are suspended on both sides of the control group, the control group drives the digging group to press down to dig a hole, and a compass and a water bubble meter are arranged on the top of the control group. The invention uses a distance group to set up, a distance frame that can be continuously flipped forward, and cooperates with several support plates outside its corners to evenly position the positions where the seedlings are placed, and its operation is simple and convenient; and the crawler group drives it to move, and the spacing of the seedlings is positioned in rows; and then the digging group is set up to cooperate with the spacing of the distance group to dig holes, so that the seedlings placed against the support plate fall into the soil pit, ensuring that the seedlings are planted in double rows and at equal spacing.

[0004] Although the above technical solution can realize the function of digging a pit, it is not possible to collect the excavated soil in a centralized manner, and the soil cannot be refilled into the pit, resulting in the need for manual backfilling, which not only reduces the efficiency of planting, but also requires a lot of physical labor.

[0005] In the related art, a Chinese patent document with an invention patent application number of CN2020101904757 discloses an integrated device for digging and filling a pit for tree planting, including a base, two support plates are symmetrically fixed on one side of the bottom surface of the base, and the same rotating shaft is horizontally penetrated on the two support plates. In the process of digging a pit, the invention can effectively classify and collect the soil generated during the digging of the pit into a funnel-shaped bucket and a first funnel-shaped bucket, and fill the soil containing sufficient fertilizer and the block soil into the tree pit in sequence, so that the soil containing sufficient fertilizer will be distributed at the bottom of the tree pit, so that the roots of the tree can fully absorb the moisture and fertilizer in the wet soil, and the block soil is mainly distributed in the upper part of the tree pit, which is conducive to the infiltration of rainwater, and in the process of planting trees in the tree pit, the trees can be clamped and straightened by two rectangular plates, and after the backfilling work is completed, the backfilled soil can be compacted by two arc plates, so the device can realize the whole set of modern tree planting processes in an integrated manner, saving a lot of manpower and labor.

[0006] Although the above technical solution can realize the functions of digging and backfilling in one operation, it requires the use of multiple driving parts, such as 8 motors and 4 hydraulic cylinders, which increases the purchase and maintenance costs of the equipment, and requires a complex control system to coordinate the movement of multiple motors and hydraulic cylinders, which increases the complexity and operation difficulty of the system and is not easy to debug.

[0007] In the related art, a Chinese patent document with invention patent application number CN202211115767X discloses an integrated device for digging and filling for tree planting, which belongs to the technical field of digging and filling devices. An integrated device for digging and filling for tree planting includes a mobile vehicle, a vertical block, a digging barrel, an auger and a filling mechanism. The vertical block is fixedly arranged on the outside of the mobile vehicle, and the vertical block is arranged in a U-shaped structure. An angle drive is arranged on the vertical block; the digging barrel is rotatably arranged at the lower end of the angle drive; the digging barrel is controlled to contact the ground through the angle drive, and the auger is rotatably arranged inside the digging barrel. The filling mechanism includes a filling block and a swing drive, and the filling block is arranged on the swing drive; the filling block performs filling action through the swing drive. Through the setting of the filling mechanism, the invention can directly remove the digging barrel after digging the pit to carry out tree planting work, and directly fill the soil through the filling block, which effectively reduces the labor process, saves manpower and material resources, improves the efficiency of planting, and realizes the integration of digging and filling.

[0008] Although the above technical solution also realizes the integrated operation of digging and backfilling, the excavated soil is transported to the left and right sides of the pit in the solution. It is difficult to completely push the soil on the left and right sides of the pit into the pit only by the linear movement of the filling blocks and the baffles in the front and rear directions. If the direction of the mobile vehicle is adjusted to push the soil completely into the pit, the efficiency of backfilling will be reduced, and this technical solution cannot crush the blocky soil.

[0009] To sum up, the first related technical solution does not have the function of collecting and backfilling soil, the second related technical solution has high purchase and maintenance costs, and requires a complex control system, which is not convenient for debugging and operation, and the third related technical solution makes it difficult to push the soil completely back into the pit; therefore, it is necessary to design a tree planting pit digging device with the functions of digging and backfilling soil in response to the shortcomings of the above technical solutions, and it can reduce the purchase and maintenance costs of the equipment and facilitate operation. Summary of the invention

[0010] In order to overcome the shortcomings of the prior art, the present invention provides a tree planting hole digging device with the functions of digging holes and backfilling soil, and can reduce the purchase and maintenance costs of the equipment and is easy to operate.

[0011] The technical solution of the present invention is: a pit digging device for tree planting, including a vehicle body, a guide frame, a lifting plate, a soil taking guide rod, a soil taking spring, a soil collecting frame, a soil collecting cylinder, a soil collecting box, a spiral drill rod and a main motor. The vehicle body is fixedly connected with the guide frame, the guide frame is slidably connected with the lifting plate, the spiral drill rod is rotatably connected with the lifting plate, the lifting plate is fixedly connected with a main motor for driving the spiral drill rod, the lifting plate is slidably connected with the soil taking guide rod, the soil taking guide rod is fixedly connected with a soil collecting frame and a soil collecting box, the soil collecting frame and the soil collecting box are connected, the soil collecting frame is fixedly connected with a soil collecting cylinder, the soil collecting cylinder is used to guide the soil so that the spiral drill rod can lift the soil upward into the soil collecting frame, the soil taking guide rods are all provided with soil taking springs, the soil collecting box is installed with a backfilling mechanism, and the backfilling mechanism is used to backfill the soil in the soil collecting box into the pit.

[0012] More preferably, the backfilling mechanism includes a filling cylinder, spiral blades and an auxiliary motor. The filling cylinder is fixedly connected to the soil collecting box in a communicating manner. An opening for soil to flow out is provided on the side of the filling cylinder away from the soil collecting box. The filling cylinder is rotatably connected with spiral blades, and an auxiliary motor for driving the spiral blades is fixedly connected to the filling cylinder.

[0013] More preferably, it also includes a screening component for screening the soil in the soil collecting box. The screening component is installed on the soil collecting box. The screening component includes a screening plate and a small spring. The screening plate is slidably connected in the soil collecting box, and the small spring is sleeved on the guide rod of the screening plate.

[0014] More preferably, it also includes a soil crushing mechanism for breaking up soil lumps in the soil collecting box, the soil crushing mechanism is connected to the soil collecting box, the soil crushing mechanism includes a soil crushing guide plate, a slider, a connector, a grinding plate and a soil crushing spring, the soil collecting box is slidably connected with the soil crushing guide plate, the soil crushing guide plate is used to drive the grinding plate to rise and fall to hit the soil lumps, the soil collecting box is slidably connected with a slider, the slider is slidably connected with a connector, the sliding directions of the slider and the connector are perpendicular, the grinding plate is fixed to the connector, and the grinding plate is located on the lower side of the soil crushing guide plate, the slider drives the grinding plate to move horizontally through the connector to grind the soil lumps, and the guide rod of the connector is provided with a soil crushing spring for pushing it to reset.

[0015] More preferably, the invention further comprises a soil retaining plate for preventing soil from flowing to the upper side of the soil crushing guide plate, wherein the soil retaining plate is fixedly connected to the upper end of the soil crushing guide plate.

[0016] More preferably, it also includes a driving mechanism for driving the soil crushing guide plate to rise and fall, the driving mechanism is connected to the lifting plate, the driving mechanism includes a support frame, a driving disk, a lever, a support frame, a gear and a rack, the soil collecting box is fixedly connected to the support frame, the driving disk is rotatably connected to the support frame, the driving disk is fixedly connected to the lever, the soil crushing guide plate is fixedly connected to the support frame, the lever is located in an I-shaped slideway provided on the support frame, the driving disk is fixedly connected to a gear, and the lifting plate is fixedly connected to a rack meshing with the gear.

[0017] More preferably, it further includes a toggle block and a force block for driving the slider to slide, the toggle block is fixedly connected to the gear, and the force block is fixedly connected to the slider, and the toggle block will intermittently push the force block during rotation.

[0018] More preferably, it also includes a shaking rod and a resistance block for driving the screening plate to shake. The screening plate is fixedly connected with the shaking rod, one end of the shaking rod is wavy, and the soil crushing guide plate is fixedly connected with the resistance block, which is used to squeeze the shaking rod to drive the screening plate to shake.

[0019] More preferably, it also includes a carrying mechanism for placing trees, which is installed on the vehicle body, and the carrying mechanism includes a standing plate, a side plate, an inner plate, a positioning spring, a support plate, a buffer plate, a shock-absorbing spring and an outer plate. The standing plate and two support plates are fixedly connected to the vehicle body, and a gap is left between the two support plates to form a channel for the trees to pass through. The middle part of the standing plate near one end of the support plate is concave to facilitate the lowering of the tree into the pit from the concave. The support plates are fixedly connected with side plates, and the inner plates are slidably connected to the side plates. The guide rods of the inner plates are provided with positioning springs, and the support plates are slidably connected with a buffer plate for supporting the tree, and the guide rods of the buffer plates are provided with shock-absorbing springs. The outer plate is fixedly connected to the buffer plate, and the outer plate and the inner plate cooperate to fix the tree on the buffer plate.

[0020] More preferably, it further comprises an electric push rod for driving the lifting plate to move, the electric push rod is fixedly connected to the guide frame, and the telescopic shaft of the electric push rod is fixedly connected to the lifting plate.

[0021] The beneficial effects of the present invention are as follows: 1. The device can collect the excavated soil into a soil collecting box, and when digging the next pit, the backfilling mechanism can backfill the collected soil into the previous pit, thereby realizing the backfilling of the previous pit during the pit digging process, which not only reduces the physical labor of the workers, but also improves the efficiency of tree planting. Moreover, the device only uses one electric push rod, one main motor and two auxiliary motors, which greatly reduces the purchase and maintenance costs of the equipment, does not require a complex control system, and is easy to debug and operate; 2. When digging a pit, the rack can drive the driving disc and the toggle block to rotate through the gear, so that the driving disc drives the soil-breaking guide plate and the grinding plate to move up and down through the support frame, and the toggle block will intermittently squeeze the force-bearing block, so that the joint can drive the grinding plate to shake back and forth horizontally with the cooperation of the soil-breaking spring, so as to beat and grind the soil lumps on the screening plate to prevent the lumps in the backfilled soil from affecting the normal growth of trees; 3. When the soil-breaking guide plate moves up and down, it will intermittently squeeze the shaking rod through the resistance block, so that the shaking rod can drive the screening plate to shake with the cooperation of the small spring, so as to improve the screening efficiency of the screening plate for soil, and the shaking screening plate can cooperate with the grinding plate to achieve the grinding effect; 4. The carrying mechanism can fix the trees to be planted on the vehicle body, making it convenient for workers to place the trees into the last dug pit during the digging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the position relationship of the soil collecting frame of the present invention.

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the soil collecting frame and the soil collecting box of the present invention.

[0025] Figure 4 It is a schematic diagram of the position relationship of the soil crushing guide plate of the present invention.

[0026] Figure 5 It is a schematic diagram of the position relationship of the drive disk of the present invention.

[0027] Figure 6 It is a schematic diagram of the structure of the grinding plate of the present invention.

[0028] Figure 7 It is a schematic diagram of the position relationship of the bearing mechanism of the present invention.

[0029] Figure 8 It is a schematic diagram of the structure of the buffer plate of the present invention.

[0030] The markings of the components in the accompanying drawings are as follows: 1. Car body, 101. Guide frame, 102. Lifting plate, 103. Soil guide rod, 104. Soil spring, 105. Soil collecting frame, 106. Soil collecting cylinder, 107. Soil collecting box, 108. Auger rod, 109. Main motor, 2. Screening plate, 201. Small spring, 3. Soil crushing guide plate, 301. Sliding block, 302. Connector, 303. Soil grinding plate, 304. Soil crushing spring, 305. Soil retaining plate, 4. Support frame, 401. Drive disc , 402, lever, 403, support frame, 404, gear, 405, rack, 5, toggle block, 501, force block, 6, shaking rod, 601, resistance block, 7, filling frame, 701, filling cylinder, 702, spiral blade, 703, discharge pipe, 704, auxiliary motor, 8, standing plate, 801, side plate, 802, inner splint, 803, positioning spring, 804, support plate, 805, buffer plate, 806, shock-absorbing spring, 807, outer splint, 9, electric push rod. DETAILED DESCRIPTION

[0031] 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.

[0032] Embodiment 1: A tree planting digging device, such as Figure 1-Figure 3 As shown, it includes a vehicle body 1, a guide frame 101, a lifting plate 102, a soil taking guide rod 103, a soil taking spring 104, a soil collecting frame 105, a soil collecting cylinder 106, a soil collecting box 107, an auger rod 108, a main motor 109 and a backfilling mechanism. The front side of the vehicle body 1 is fixedly connected with the guide frame 101, and the guide frame 101 is in a door shape. The guide frame 101 is slidably connected with the lifting plate 102 in the vertical direction, and the lower side of the lifting plate 102 is rotatably connected with the auger rod 108. The upper side of the lifting plate 102 is fixedly connected with the main motor 109, and the output shaft of the main motor 109 is fixedly connected to the upper end of the auger rod 108. Four soil taking guide rods 103 are symmetrically slidably connected on the lifting plate 102, and the soil taking guide rods 103 also slide in the vertical direction. The two soil taking guide rods 103 located on the front side are jointly fixed with the soil taking guide rods 103. Frame 105, the interior of the soil collecting frame 105 is tilted with the front higher and the back lower, a soil collecting cylinder 106 is fixedly connected to the soil collecting frame 105, and the spiral drill rod 108 passes through the soil collecting cylinder 106, and the soil collecting cylinder 106 is used to guide the soil so as to lift the soil upward, and the two soil taking guide rods 103 located on the rear side are jointly fixed with a soil collecting box 107, and the soil collecting box 107 is located on the rear side of the soil collecting frame 105, and the soil collecting box 107 is connected to the soil collecting frame 105, so that the soil in the soil collecting frame 105 can flow backward into the soil collecting box 107, and the soil taking guide rods 103 are all provided with soil taking springs 104, and the soil taking springs 104 will be compressed when the lifting plate 102 approaches the soil collecting frame 105, and a backfilling mechanism is installed on the soil collecting box 107, and the backfilling mechanism is used to backfill the soil in the soil collecting box 107 into the pit.

[0033] When starting to dig a hole and plant trees, the vehicle body 1 is controlled to move in the direction where the hole needs to be dug. When the auger rod 108 moves to the top of the position where the hole needs to be dug, the vehicle body 1 is stopped, and the main motor 109 is started to drive the auger rod 108 to rotate, and then the lifting plate 102 is controlled to move downward. The lifting plate 102 will first drive the auger rod 108, the soil collecting frame 105, the soil collecting barrel 106 and the soil collecting box 107 to move downward synchronously. When the soil collecting barrel 106 contacts the ground, it will be blocked by the ground and cannot move further downward. The soil collecting frame 105 and the soil collecting box 107 cannot move further downward either. Then the lifting plate 102 is controlled to continue to move downward, and the lifting plate 102 will gradually approach the soil collecting frame 105 and take the soil The soil spring 104 is compressed, and the auger rod 108 will start to drill into the ground. The soil drilled by the auger rod 108 will flow upward into the soil collecting frame 105 through the soil collecting cylinder 106, and the soil in the soil collecting frame 105 will flow into the soil collecting box 107, thereby digging a hole in the ground. The lifting plate 102 is then controlled to drive the auger rod 108 to reset upward. Since the soil taking spring 104 is in a compressed state, the lifting plate 102 will first move upward away from the soil collecting frame 105. When the soil taking spring 104 is restored, the lifting plate 102 will drive the soil collecting frame 105, the soil collecting cylinder 106 and the soil collecting box 107 to reset upward through the soil taking guide rod 103, and then the vehicle body 1 is controlled to move to the next digging position.

[0034] like Figure 2 and Figure 3 As shown, the backfilling mechanism includes a filling frame 7, a filling barrel 701, a spiral blade 702, a soil discharge pipe 703 and an auxiliary motor 704. The lower end of the soil collecting box 107 is connected and fixedly connected with the filling barrel 701. Two filling frames 7 are symmetrically fixedly connected to the rear side of the soil collecting box 107. The filling frames 7 and the filling barrel 701 are fixedly connected. An opening for soil outflow is provided on the side of the filling barrel 701 away from the soil collecting box 107, and a soil discharge pipe 703 for diverting the soil is fixedly connected to the opening. A spiral blade 702 is rotatably connected inside the filling barrel 701, and an auxiliary motor 704 is fixedly connected to the front side of the filling barrel 701. The auxiliary motor 704 and the front end of the spiral blade 702 are fixedly connected.

[0035] The soil in the soil collecting box 107 will flow into the filling tube 701 below. Since trees are usually planted at equal intervals, holes need to be dug at equal intervals. When the auger rod 108 moves to the position where the next hole needs to be dug, the discharge pipe 703 will move to the top of the last dug hole, and the workers will place the trees to be planted in the holes, and then control the auxiliary motor 704 to drive the spiral blades 702 to rotate. The spiral blades 702 will transport the soil in the filling tube 701 toward the discharge pipe 703, and the soil will flow into the hole through the discharge pipe 703. During this process, the lifting plate 102 can be controlled to continue moving downward to start digging the next hole, so that the previous hole can be backfilled during the digging process, thereby improving the efficiency of tree planting.

[0036] Embodiment 2: Based on embodiment 1, Figure 4 As shown, it also includes a screening component for screening the soil in the soil collecting box 107. The screening component is installed on the soil collecting box 107. The screening component includes a screening plate 2 and a small spring 201. The screening plate 2 is connected to the soil collecting box 107 in a horizontal sliding direction. The screening plate 2 is located on the upper side of the filling tube 701, and a small spring 201 is sleeved on the guide rod of the screening plate 2.

[0037] like Figure 4-Figure 6 As shown, it also includes a soil crushing mechanism for breaking up soil lumps in the soil collecting box 107, the soil crushing mechanism is connected to the soil collecting box 107, the soil crushing mechanism includes a soil crushing guide plate 3, a slider 301, a connector 302, a grinding plate 303 and a soil crushing spring 304, the soil collecting box 107 is slidably connected with the soil crushing guide plate 3 in the vertical direction, the soil collecting box 107 is slidably connected with the slider 301 in the horizontal direction, the slider 301 is slidably connected with the connector 302 in the vertical direction, and the connector 302 is slidably connected to the soil crushing guide plate 3 in the horizontal direction, two soil crushing springs 304 are symmetrically sleeved on the guide rod of the connector 302, the connector 302 is located between the two soil crushing springs 304, the lower end of the connector 302 is fixedly connected with the grinding plate 303, the grinding plate 303 is located on the lower side of the soil crushing guide plate 3, and the lower end of the grinding plate 303 is provided with a protruding structure for increasing friction with the soil, so as to grind the soil lumps.

[0038] like Figure 3 As shown, it also includes a retaining plate 305 for preventing soil from flowing to the upper side of the soil crushing guide plate 3. The retaining plate 305 is fixed to the upper end of the soil crushing guide plate 3, and the retaining plate 305 and the soil crushing guide plate 3 are perpendicular.

[0039] like Figure 2-Figure 4 As shown, it also includes a driving mechanism for driving the soil crushing guide plate 3 to rise and fall, the driving mechanism is connected to the lifting plate 102, the driving mechanism includes a support frame 4, a driving disk 401, a lever 402, a support frame 403, a gear 404 and a rack 405, the soil collecting box 107 is fixedly connected to the support frame 4, the driving disk 401 is rotatably connected to the support frame 4, the rear end of the driving disk 401 is fixedly connected to the lever 402, and the lever 402 is located at an eccentric position of the driving disk 401, the soil crushing guide plate 3 is fixedly connected to the support frame 403, the support frame 403 is provided with a straight-line slide, the lever 402 is located in the straight-line slide, the front end of the driving disk 401 is fixedly connected to the gear 404, the rear side of the lifting plate 102 is fixedly connected to the rack 405, and the rack 405 and the gear 404 are meshed.

[0040] like Figure 4As shown, it also includes a toggle block 5 and a force block 501 for driving the slider 301 to slide. The toggle block 5 is fixedly connected to the front end of the gear 404. The toggle block 5 is located on the upper side of the slider 301. Four protrusions are provided on the circular side wall of the toggle block 5. The force block 501 is fixedly connected to the upper end of the slider 301. During the rotation of the toggle block 5, the protrusion structure on it will intermittently push the force block 501, so that the force block 501 drives the grinding plate 303 to vibrate through the slider 301 and the connector 302.

[0041] like Figure 3 and Figure 5 As shown, it also includes a shaking rod 6 and a resistance block 601 for driving the screening plate 2 to shake. The screening plate 2 is fixedly connected to the shaking rod 6, and the end of the shaking rod 6 facing the soil crushing guide plate 3 is wavy. The end of the soil crushing guide plate 3 facing the shaking rod 6 is fixedly connected to the resistance block 601, and the end of the resistance block 601 away from the soil crushing guide plate 3 is an arc surface. The resistance block 601 is used to squeeze the shaking rod 6 to drive the screening plate 2 to shake.

[0042] When the lifting plate 102 approaches and moves away from the soil collecting frame 105, the rack 405 will drive the driving disc 401 and the toggle block 5 to rotate through the gear 404. When the driving disc 401 rotates, it will drive the soil crushing guide plate 3 to move up and down through the toggle rod 402 and the support frame 403. The soil crushing guide plate 3 will drive the grinding plate 303 to move synchronously. During the rotation of the toggle block 5, the force block 501 will be intermittently pushed, and the slider 301 and the connector 302 will be driven to slide in the horizontal direction through the force block 501, and the soil crushing spring 304 will be compressed. When the toggle block 5 and the force block 501 are out of contact, the soil crushing spring 304 will push the connector 302 and the slider 301 to slide horizontally and reset. Since the grinding plate 303 and the connector 302 are fixedly connected, the grinding plate 303 moves up and down. It can also shake left and right during the process, so that the grinding plate 303 can hit and grind the soil lumps on the screening plate 2, so as to achieve the effect of breaking up the soil lumps and prevent the lumps in the soil from affecting the normal growth of trees; during the downward movement of the soil crushing guide plate 3, the retaining plate 305 can block the soil and prevent the soil from flowing to the upper side of the soil crushing guide plate 3; during the up and down reciprocating movement of the soil crushing guide plate 3, the resistance block 601 will intermittently squeeze the shaking rod 6, so that the screening plate 2 can shake back and forth under the action of the shaking rod 6 and the small spring 201, which can improve the screening efficiency of the screening plate 2 and enable the screening plate 2 to cooperate with the grinding plate 303 to improve the effect of grinding the soil; when producing the screening plate 2, some protruding structures for increasing the friction with the soil can also be set at the upper end of the screening plate 2.

[0043] Embodiment 3: Based on embodiment 2, Figure 1 , Figure 7 and Figure 8As shown, it also includes a bearing mechanism for placing trees, which is installed on the vehicle body 1. The bearing mechanism includes a standing plate 8, a side plate 801, an inner clamping plate 802, a positioning spring 803, a support plate 804, a buffer plate 805, a shock-absorbing spring 806 and an outer clamping plate 807. The vehicle body 1 is fixedly connected with a standing plate 8 and two support plates 804, and a gap is left between the two support plates 804 to form a passage for trees to pass through. The standing plate 8 is located on the upper side of the filling tube 701 and the filling frame 7. The middle part of one end of the standing plate 8 close to the support plate 804 is concave, and the width of the concave is greater than the width of the passage between the two support plates 804, so as to facilitate the lowering of the tree into the pit from the concave part, and the concave part is located above the two soil discharge pipes 703. The support plates 804 are fixedly connected with side plates 801, and the side plates 80 An inner clamping plate 802 is slidably connected to the support plate 804 along the horizontal direction, and the inner clamping plate 802 is located at one end opposite to the two side plates 801. A positioning spring 803 is sleeved on the guide rod of the inner clamping plate 802, and the positioning spring 803 is used to push the inner clamping plate 802 away from the adjacent side plate 801. A buffer plate 805 is slidably connected to the support plate 804 along the vertical direction, and a groove for supporting the root of the tree is provided at the upper end of the buffer plate 805. A shock-absorbing spring 806 is sleeved on the guide rod of the buffer plate 805, and the shock-absorbing spring 806 is used to push the buffer plate 805 to move upward. An outer clamping plate 807 is fixed to the buffer plate 805, and a plurality of semi-cylindrical grooves are arranged in an array along the length direction at one end adjacent to the outer clamping plate 807 and the inner clamping plate 802, and the outer clamping plate 807 and the inner clamping plate 802 cooperate to fix the tree on the buffer plate 805.

[0044] When a tree needs to be placed on the buffer plate 805, the inner plate 802 is first pushed away from the outer plate 807, the positioning spring 803 is compressed, and then the tree is placed on the buffer plate 805, and the trunk of the tree is located in a semi-cylindrical groove on the outer plate 807. Multiple trees can be placed on each buffer plate 805, and then the inner plate 802 is loosened, so that the positioning spring 803 pushes the inner plate 802 close to the outer plate 807, and the semi-cylindrical grooves on the inner plate 802 and the outer plate 807 are compressed. A cylindrical through hole will be formed, and the tree will be limited by the cylindrical through hole to prevent the tree from falling over during the movement of the vehicle body 1. Workers can walk along the standing board 8 and the support board 804. When it is necessary to place a tree in the pit, the worker will take out a tree from the buffer board 805 and lower the tree into the pit through the recessed position in the middle of the standing board 8, and then control the backfilling mechanism to backfill the soil into the pit. After the backfilling is completed, the vehicle body 1 is controlled to move forward, and the tree will pass through the channel between the two support boards 804.

[0045] like Figure 1As shown, it also includes an electric push rod 9 for driving the lifting plate 102 to move. The electric push rod 9 is fixedly connected to the top of the guide frame 101, and the telescopic shaft of the electric push rod 9 is fixedly connected to the lifting plate 102.

[0046] The lifting plate 102 can be driven to move up and down by the extension and retraction of the electric push rod 9 .

[0047] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A tree planting digging device, comprising a vehicle body (1), characterized in that: The vehicle body (1) further comprises a guide frame (101), a lifting plate (102), a soil taking guide rod (103), a soil taking spring (104), a soil collecting frame (105), a soil collecting cylinder (106), a soil collecting box (107), an auger rod (108), a main motor (109) and a backfilling mechanism. The vehicle body (1) is fixedly connected with the guide frame (101), the lifting plate (102) is slidably connected with the guide frame (101), the auger rod (108) is rotatably connected with the lifting plate (102), the main motor (109) for driving the auger rod (108) is fixedly connected with the lifting plate (102), and the lifting plate (102) is fixedly connected with the main motor (109) for driving the auger rod (108). ) is slidably connected to a soil taking guide rod (103), a soil collecting frame (105) and a soil collecting box (107) are fixedly connected to the soil taking guide rod (103), the soil collecting frame (105) and the soil collecting box (107) are communicated, a soil collecting cylinder (106) is fixedly connected to the soil collecting frame (105), the soil collecting cylinder (106) is used to guide the soil so that the spiral drill rod (108) can lift the soil upward into the soil collecting frame (105), the soil taking guide rod (103) is sleeved with a soil taking spring (104), and a backfilling mechanism is installed on the soil collecting box (107), and the backfilling mechanism is used to backfill the soil in the soil collecting box (107) into the pit.

2. A tree planting hole digging device according to claim 1, characterized in that: The backfilling mechanism comprises a filling cylinder (701), a spiral blade (702) and an auxiliary motor (704); the filling cylinder (701) is connected and fixedly connected to the soil collecting box (107); an opening for soil to flow out is provided on a side of the filling cylinder (701) away from the soil collecting box (107); the spiral blade (702) is rotatably connected inside the filling cylinder (701); and the auxiliary motor (704) for driving the spiral blade (702) is fixedly connected to the filling cylinder (701).

3. A tree planting digging device according to claim 1, characterized in that: The invention also comprises a screening component for screening the soil in the soil collecting box (107), the screening component being mounted on the soil collecting box (107), the screening component comprising a screening plate (2) and a small spring (201), the screening plate (2) being slidably connected in the soil collecting box (107), and the small spring (201) being sleeved on a guide rod of the screening plate (2).

4. A tree planting hole digging device according to claim 3, characterized in that: The device also includes a soil crushing mechanism for crushing soil lumps in the soil collecting box (107). The soil crushing mechanism is connected to the soil collecting box (107). The soil crushing mechanism includes a soil crushing guide plate (3), a slider (301), a connector (302), a grinding plate (303) and a soil crushing spring (304). The soil collecting box (107) is slidably connected with the soil crushing guide plate (3). The soil crushing guide plate (3) is used to drive the grinding plate (303) to rise and fall to hit the soil lumps. The soil collecting box (107) is slidably connected with the slider (301). 01), a connector (302) is slidably connected to the slider (301), the sliding directions of the slider (301) and the connector (302) are perpendicular to each other, a grinding plate (303) is fixedly connected to the connector (302), and the grinding plate (303) is located at the lower side of the soil crushing guide plate (3), the slider (301) drives the grinding plate (303) to move horizontally through the connector (302) to grind soil lumps, and a soil crushing spring (304) for pushing the connector (302) to reset is sleeved on the guide rod.

5. A tree planting hole digging device according to claim 4, characterized in that: It also includes a soil retaining plate (305) for preventing soil from flowing to the upper side of the soil crushing guide plate (3); the soil retaining plate (305) is fixedly connected to the upper end of the soil crushing guide plate (3).

6. A tree planting hole digging device according to claim 4, characterized in that: The invention also comprises a driving mechanism for driving the soil crushing guide plate (3) to rise and fall, the driving mechanism being connected to the lifting plate (102), the driving mechanism comprising a support frame (4), a driving disk (401), a lever (402), a support frame (403), a gear (404) and a rack (405), the soil collecting box (107) being fixedly connected to the support frame (4), the driving disk (401) being rotatably connected to the support frame (4), the lever (402) being fixedly connected to the driving disk (401), the support frame (403) being fixedly connected to the soil crushing guide plate (3), the lever (402) being located in a straight-line slideway provided on the support frame (403), the driving disk (401) being fixedly connected to the gear (404), and the lifting plate (102) being fixedly connected to the rack (405) meshing with the gear (404).

7. A tree planting digging device according to claim 6, characterized in that: It also includes a toggle block (5) and a force block (501) for driving the slider (301) to slide. The toggle block (5) is fixedly connected to the gear (404), and the force block (501) is fixedly connected to the slider (301). The toggle block (5) will intermittently push the force block (501) during its rotation.

8. A tree planting hole digging device according to claim 6, characterized in that: It also includes a shaking rod (6) and a resistance block (601) for driving the screening plate (2) to shake. The screening plate (2) is fixedly connected to the shaking rod (6), one end of the shaking rod (6) is wavy, and the soil crushing guide plate (3) is fixedly connected to the resistance block (601). The resistance block (601) is used to squeeze the shaking rod (6) to drive the screening plate (2) to shake.

9. A tree planting hole digging device according to claim 1, characterized in that: The vehicle body (1) also includes a bearing mechanism for placing trees, the bearing mechanism being mounted on the vehicle body (1), the bearing mechanism comprising a standing plate (8), a side plate (801), an inner clamping plate (802), a positioning spring (803), a support plate (804), a buffer plate (805), a shock absorbing spring (806) and an outer clamping plate (807), the vehicle body (1) being fixedly connected with the standing plate (8) and two support plates (804), a gap being left between the two support plates (804) to form a passage for the trees to pass through, and a middle portion of one end of the standing plate (8) close to the support plate (804) being concave to facilitate the trees to pass through. The recessed part moves the tree down into the pit, the support plate (804) is fixedly connected to the side plate (801), the side plate (801) is slidably connected to the inner clamping plate (802), the guide rod of the inner clamping plate (802) is sleeved with a positioning spring (803), the support plate (804) is slidably connected to a buffer plate (805) for supporting the tree, the guide rod of the buffer plate (805) is sleeved with a shock absorbing spring (806), the buffer plate (805) is fixedly connected to the outer clamping plate (807), and the outer clamping plate (807) and the inner clamping plate (802) cooperate to fix the tree on the buffer plate (805).

10. A tree planting hole digging device according to claim 1, characterized in that: It also includes an electric push rod (9) for driving the lifting plate (102) to move. The electric push rod (9) is fixedly connected to the guide frame (101), and the telescopic shaft of the electric push rod (9) is fixedly connected to the lifting plate (102).

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