A tree planting and pit digging device for landscaping projects

Abstract

This invention discloses a tree planting and hole-digging device for landscaping projects, belonging to the field of landscaping construction technology. The device includes a base with a plant placement slot on one side and a handle fixed to the other side. Universal wheels are installed at the four corners of the lower end of the base, and a support frame is fixed to one side of the upper end. A drive motor is fixed to the other side of the support frame, and a fixed rod is fixed to the drive end of the drive motor. A connecting structure is provided on the fixed rod, and a ground drill bit is mounted on the connecting structure. This tree planting and hole-digging device achieves an adaptive digging effect, automatically adjusting the rotation and downward movement of the drill bit through the mechanical cooperation of centrifugal force and springs. It simplifies the overall machine structure, effectively reduces the production cost and daily operating cost of the planting and hole-digging equipment, and significantly improves the overall economic efficiency of the equipment.

Description

Technical Field

[0001] This invention relates to the field of landscape engineering construction technology, specifically to a tree planting and pit digging device for landscape engineering construction. Background Technology

[0002] Landscape greening is the creation of a landscape within a specific area by combining engineering technology and artistic techniques. It involves planting trees and flowers, constructing landscape architecture, and planning garden paths to create green spaces that harmonize with the natural environment and continuously optimize the urban ecological environment. Tree planting is the core component of landscape greening projects. In actual construction, it typically requires the use of excavating machinery to dig tree pits, thereby completing the tree planting operation and ensuring the efficient progress of greening construction.

[0003] While existing planting and hole-digging equipment can meet the basic operational needs of conventional soil drilling and tree planting, in the complex working conditions of fields and woodlands, traditional equipment mostly requires two independent drive structures. These two drive sources work together to independently drive the drill bit to perform rotary cutting and vertical feed / downward movement. This multi-drive configuration not only increases the structural redundancy and assembly difficulty of the machine, raising overall manufacturing costs, but also increases energy consumption and component wear and tear due to the continuous operation of multiple power sources. This leads to increased maintenance frequency and repair expenses, resulting in higher overall purchase and operating costs, thus limiting the economic viability of planting and hole-digging equipment.

[0004] Therefore, it is necessary to invent a tree planting and pit digging device for landscaping projects to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a tree planting and pit digging device for landscaping projects, so as to solve the problems mentioned in the background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a tree planting and pit digging device for landscaping construction, including a base, a plant placement groove on one side of the base, a handle fixed on the other side of the base, casters at the four corners of the lower end of the base, and a support frame fixed on one side of the upper end of the base; A drive motor is fixed to the other side of the support frame. A fixed rod is fixed to the drive end of the drive motor. A connecting structure is provided on the fixed rod. A ground drill bit is provided on the connecting structure. The connecting structure can rotate the ground drill bit around its own central axis on one hand, and move the ground drill bit in its own height direction on the other hand, so as to adaptively dig holes in the ground.

[0007] Preferably, the connecting structure includes a fixed block and a fixed seat. A drill bit is slidably connected to the outer surface of the fixed block. A groove is formed in the middle of the drill bit. A stabilizing groove is formed on one side of the fixed seat. A stabilizing block is slidably connected to the inner wall of the stabilizing groove. Springs are fixed on both sides of the stabilizing block. A locking block is fixed in the middle of the stabilizing block. A rotating frame is provided on the outer surface of the locking block. A locking groove is formed on one side of the rotating frame. A driving gear is fixed on the lower side of the rotating frame. A driven gear is meshed with the driving gear. A threaded rod is fixed in the middle of the driven gear. A stabilizing disc is fixed at the upper end of the threaded rod. A threaded frame is threadedly connected to the outer surface of the threaded rod.

[0008] Preferably, the middle part of the fixing block is fixed to the lower end of the fixing rod, the outer surface of the fixing block is slidably connected to the inner wall of the slide groove, the slide groove passes through the middle of the drill bit, the fixing rod passes through the middle of the upper end of the slide groove, the outer surface of the fixing rod is rotatably connected to the inner wall of one side of the support frame, one end of the support frame is fixed to one side of the base, and the vertical section of the support frame is L-shaped.

[0009] Preferably, one side of the fixed base is fixed to the upper side of the fixed rod, the stabilizing groove is opened on one side of the fixed base, the outer surface of the stabilizing block is slidably connected to the inner wall of the stabilizing groove, one end of the two springs is fixed to both sides of the stabilizing block, the other end of the two springs is fixed to the inner walls of both sides of the stabilizing groove, one end of the locking block is fixed to the middle of the stabilizing block, the outer surface of the locking block is in contact with the inner wall of the rotating frame, and the outer surface of the locking block is in contact with the inner wall of the locking groove.

[0010] Preferably, the outer surface of the rotating frame is rotatably connected to the inner wall of the support frame, the vertical cross-section of the rotating frame is I-shaped, the lower side of the rotating frame is fixed to the inner wall of the driving gear, the driving gear is meshed with the driven gear, the middle part of the driven gear is fixed to the upper side of the threaded rod, the upper end of the threaded rod is fixed to the middle of the stabilizing plate, the outer surface of the stabilizing plate is rotatably connected to the inner wall of the other end of the support frame, one end of the threaded frame is threaded to the outer surface of the threaded rod, and the inner wall of the other end of the threaded frame is rotatably connected to the upper outer surface of the drill bit.

[0011] Preferably, support blocks are fixed on both sides of the threaded frame, a connecting frame is rotatably connected to the other end of each of the two support blocks, a sliding frame is rotatably connected to the other end of each of the two connecting frames, a flattening frame is fixed to the other end of each of the two sliding frames, and guide grooves are provided on both sides of the base.

[0012] Preferably, the two support blocks are fixed at their proximal ends to both sides of the threaded frame, the two support blocks are rotatably connected at their disjoint ends to the proximal ends of the two connecting frames, and the two connecting frames are rotatably connected at their disjoint ends to the upper ends of the two sliding frames.

[0013] Preferably, the outer surfaces of the two sliding frames are slidably connected to the inner walls of the two guide grooves, the two sliding frames are arranged opposite to each other, the vertical cross-section of each sliding frame is T-shaped, the lower ends of the two sliding frames are fixed to the opposite ends of the two flattening frames, the two flattening frames are symmetrically distributed, and the cross-section of each flattening frame is V-shaped.

[0014] Preferably, the outer surfaces of the two flattening frames are provided with conical frames, a support ring is fixed in the middle of the conical frame, a limit block is fixed on one side of the support ring, and a limit groove is opened in the middle of the base.

[0015] Preferably, the outer surface of the conical frame is in contact with the inclined surfaces of the two flat frames on their similar sides. The middle part of the conical frame is fixed to the inner wall of the support ring. The cross-section of the support ring is circular. One side of the support ring is fixed to one end of the limiting block. The outer surface of the other end of the limiting block is slidably connected to the inner wall of the limiting groove. The cross-section of the limiting block is T-shaped. The limiting groove is opened on one side of the middle part of the base. The middle part of the base is hollow.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention achieves the effect of adaptive digging by relying on the mechanical cooperation of centrifugal force and spring to automatically control the working state of the drill bit rotation and downward movement, simplifying the overall structure layout, effectively reducing the production cost and daily use cost of planting digging equipment, and effectively improving the overall economic efficiency of the equipment. (2) This invention realizes integrated operation of planting area pretreatment, abandons the traditional manual cleaning and leveling operation mode, reduces manual intervention, reduces overall labor intensity, and effectively improves the ease of use of planting hole digging equipment; (3) The present invention achieves the effect of automatically enclosing and forming a closed ring-shaped water storage pit. The ring-shaped soil slope is built simultaneously with the pit digging operation, eliminating the need for manual construction of the pit enclosure in the later stage, simplifying the overall planting process, and effectively improving the overall operating efficiency of the planting pit digging equipment. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a partial structural cross-sectional view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure of section A in the middle; Figure 4 This is a schematic diagram of the structure of the earth drilling bit of the present invention; Figure 5 This is a cross-sectional view of the base of the present invention; Figure 6 This is a schematic diagram of the conical frame structure of the present invention; Figure 7For the present invention Figure 6 Enlarged view of the structure of section B in the middle; Figure 8 This is a partial structural diagram of the present invention.

[0018] In the diagram: 1. Base; 2. Plant placement trough; 3. Handle; 4. Casters; 5. Support frame; 6. Drive motor; 7. Fixing rod; 8. Fixing block; 9. Ground drill bit; 10. Slide groove; 11. Fixing seat; 12. Stabilizing groove; 13. Stabilizing block; 14. Spring; 15. Locking block; 16. Rotating frame; 17. Locking groove; 18. Drive gear; 19. Driven gear; 20. Threaded rod; 21. Stabilizing disc; 22. Threaded frame; 23. Support block; 24. Connecting frame; 25. Sliding frame; 26. Leveling frame; 27. Guide groove; 28. Conical frame; 29. ​​Support ring; 30. Limiting block; 31. Limiting groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 This embodiment provides a tree planting and pit digging device for landscaping engineering construction; Please see Figures 1-8As shown, the device includes a base 1, a plant placement slot 2 on one side of the base 1, a handle 3 fixed to the other side of the base 1, casters 4 at the four corners of the lower end of the base 1, a support frame 5 fixed to one side of the upper end of the base 1, a drive motor 6 fixed to the other side of the support frame 5, a fixed rod 7 fixed to the drive end of the drive motor 6, a connecting structure on the fixed rod 7, the connecting structure including a fixed block 8 and a fixed seat 11, a drill bit 9 slidably connected to the outer surface of the fixed block 8, a groove 10 in the middle of the drill bit 9, a stabilizing groove 12 on one side of the fixed seat 11, a stabilizing block 13 slidably connected to the inner wall of the stabilizing groove 12, springs 14 fixed to both sides of the stabilizing block 13, a locking block 15 fixed to the middle of the stabilizing block 13, a rotating frame 16 on the outer surface of the locking block 15, a slot 17 on one side of the rotating frame 16, a drive gear 18 fixed to the lower side of the rotating frame 16, and a driven gear 19 meshing with the drive gear 18. A threaded rod 20 is fixed in the middle of the driven gear 19, and a stabilizing plate 21 is fixed at the upper end of the threaded rod 20. A threaded frame 22 is threadedly connected to the outer surface of the threaded rod 20. The plant placement trough 2 can be used to place the seedlings to be planted, which is convenient for operators to prepare seedlings in advance and avoid delays in the work progress due to temporary removal of seedlings during the digging process. At the same time, it can also play a certain role in limiting and protecting the seedlings, preventing the seedlings from tipping over and damaging the root system, and preparing for subsequent planting operations. The rotating and automatically moving ground drill bit 9 can efficiently drill into the surface of the planting area under the cutting action of its own rotation and the feeding action driven by the downward movement of the threaded frame 22. It can adaptively adjust the rotation and downward movement rhythm according to the soil hardness. When encountering hard soil layers, it only maintains rotation and breaks the soil. After breaking the hard soil layers, it moves downward and drills simultaneously, accurately excavating planting pits that meet the needs of seedling planting. There is no need for manual assistance to control the rotation and feeding rhythm of the drill bit, which greatly reduces the intensity of manual operation.

[0021] Please refer to it again. Figures 1-8As shown, the middle of the fixing block 8 is fixed to the lower end of the fixing rod 7. The outer surface of the fixing block 8 is slidably connected to the inner wall of the slide groove 10. The slide groove 10 passes through the middle of the drill bit 9. The fixing rod 7 passes through the middle of the upper end of the slide groove 10. The outer surface of the fixing rod 7 is rotatably connected to the inner wall of one side of the support frame 5. One end of the support frame 5 is fixed to one side of the base 1. The vertical section of the support frame 5 is L-shaped. One side of the fixing seat 11 is fixed to the upper side of the fixing rod 7. The stabilizing groove 12 is opened on one side of the fixing seat 11. The outer surface of the stabilizing block 13 is slidably connected to the inner wall of the stabilizing groove 12. One end of the two springs 14 is fixed to both sides of the stabilizing block 13. The other end of the two springs 14 is fixed to the inner walls of both sides of the stabilizing groove 12. One end of the locking block 15 is fixed to the stabilizing groove 12. In the middle of the fixed block 13, the outer surface of the locking block 15 contacts the inner wall of the rotating frame 16, and the outer surface of the locking block 15 contacts the inner wall of the slot 17. The outer surface of the rotating frame 16 is rotatably connected to the inner wall of the support frame 5. The vertical section of the rotating frame 16 is set in an I-shape. The lower side of the rotating frame 16 is fixed to the inner wall of the driving gear 18. The driving gear 18 is meshed with the driven gear 19. The middle part of the driven gear 19 is fixed to the upper side of the threaded rod 20. The upper end of the threaded rod 20 is fixed to the middle of the stabilizing plate 21. The outer surface of the stabilizing plate 21 is rotatably connected to the inner wall of the other end of the support frame 5. One end of the threaded frame 22 is threadedly connected to the outer surface of the threaded rod 20, and the inner wall of the other end of the threaded frame 22 is rotatably connected to the upper outer surface of the drill bit 9.

[0022] The specific implementation process is as follows: First, place the seedling to be planted in the plant placement groove 2 opened on one side of the base 1. Then, push the handle 3 to move the base 1 to the planting area with the help of the casters 4, and lock the casters 4 to complete the equipment positioning. Then, drive the fixed rod 7 to rotate through the drive motor 6. The fixed block 8 fixed to the lower end of the fixed rod 7 rotates synchronously. The rotating fixed block 8 is in contact with the inner wall of the sliding groove 10 opened in the middle of the drill bit 9. Through the limiting cooperation, the drill bit 9 is driven to rotate synchronously. At the same time, the fixed seat 11 fixed to the upper side of the fixed rod 7 rotates synchronously. The rotating fixed seat 11 generates centrifugal force, which drives the stabilizing block 13 slidably connected to the inner wall of the stabilizing groove 12 to compress the spring 14. While the stabilizing block 13 is compressed and displaced, it drives the locking block 15 fixed in the middle to move towards the rotating frame 16 rotatably connected to the inner wall of the support frame 5, until the locking block 15 is in contact with the inner wall of the rotating frame 16. When the slot 17 on the rotating frame 16 is precisely aligned with the position of the locking block 15, the locking block 15 slides into the slot 17, thereby driving the rotating frame 16 to rotate stably under the limiting constraint of the support frame 5. The stable rotating frame 16 drives the lower fixed drive gear 18 to rotate synchronously. The drive gear 18 meshes and drives the driven gear 19 to rotate. The rotating driven gear 19 drives the threaded rod 20 fixed in the middle to rotate synchronously. The threaded rod 20 is fixed at the top of the stabilizing plate 21 and kept vertically stable under the limit of the inner wall of the support frame 5. This drives the threaded frame 22 with the threaded connection on the outer surface to move vertically downward along the limit formed by the outer surface of the ground drill bit 9. Then, the ground drill bit 9 completes automatic downward feeding while rotating continuously, realizing synchronous rotary drilling operation. When the ground drill bit 9 contacts the ground to carry out pit digging, when it encounters the resistance of hard soil layer, the overall load of the equipment increases, and the rotation speed of the fixed rod 7 and the ground drill bit 9 decreases accordingly. The centrifugal force generated by the rotation of the fixed seat 11 decreases synchronously. The spring 14, which was originally compressed, releases its elastic potential energy and resets, pushing the stabilizing block 13 to slide back along the inner wall of the stabilizing groove 12, so that the locking block 15 at the end of the stabilizing block 13 slides out of the groove 17 and is released from the limit. At this point, the rotating frame 16 stops power transmission, and the drill bit 9 switches to a working state of rotating without descending, relying on continuous rotation to break up hard soil layers. After the hard soil is completely broken up, the operating resistance decreases, the overall speed of the equipment increases again, and the centrifugal force generated by the fixed seat 11 increases again, which re-compresses the spring 14 and pushes the stabilizing block 13 to move, causing the locking block 15 to re-enter the slot 17, restoring the gear transmission link, and driving the drill bit 9 to continue to move down and feed to continuously dig holes. This adapts to different soil hardness and achieves an adaptive digging effect. Relying on the mechanical cooperation of centrifugal force and spring 14, the working state of the drill bit rotation and downward movement is automatically adjusted, simplifying the overall structural layout of the machine, effectively reducing the production cost and daily operating cost of the planting hole digging equipment, and truly improving the overall economic efficiency of the equipment.

[0023] Example 2 In the early stages of sapling planting, it is necessary to clear debris and remove weeds from the planting area, and also level the ground. Currently, conventional planting hole-digging equipment has limited functionality and cannot simultaneously automate the leveling and weeding processes. The entire pre-treatment work relies heavily on manual operation, making the process cumbersome and labor-intensive. Therefore, it is necessary to add automated leveling and weeding structures to the hole-digging equipment to achieve integrated pre-planting ground treatment, effectively reducing manual labor intensity and significantly improving the overall ease of use of the planting hole-digging equipment.

[0024] Please see Figures 1-8 As shown, an integrated pretreatment function for the planting area has been added based on Example 1; Please refer to it again. Figures 1-8As shown, support blocks 23 are fixed on both sides of the threaded frame 22. Connecting frames 24 are rotatably connected to the other ends of the two support blocks 23. Sliding frames 25 are rotatably connected to the other ends of the two connecting frames 24. Flattening frames 26 are fixed to the other ends of the two sliding frames 25. Guide grooves 27 are provided on both sides of the base 1. The near ends of the two support blocks 23 are fixed to both sides of the threaded frame 22, and the far ends of the two support blocks 23 are rotatably connected to the near ends of the two connecting frames 24. The far ends of the two connecting frames 24 are rotatably connected to the upper ends of the two sliding frames 25. The outer surfaces of the two sliding frames 25 are slidably connected to the inner walls of the two guide grooves 27. The two sliding frames 25 are arranged opposite to each other. Each sliding frame 25 has a T-shaped vertical section. The lower ends of the two sliding frames 25 are fixed to the opposite ends of the two leveling frames 26. The two leveling frames 26 are symmetrically distributed. Each leveling frame 26 has a V-shaped cross section. The two moving leveling frames 26 are driven by the threaded frame 22 and first move vertically down along the guide grooves 27 on both sides of the base 1 until they contact the ground. Then, guided by the horizontal section of the guide grooves 27, they move away from each other. The bottom of the leveling frame 26 scrapes the surface of the planting area, clearing up surface protrusions, debris and weeds. This realizes the automated operation of ground pretreatment before planting, eliminating the need for manual leveling and weeding operations.

[0025] The specific implementation process is as follows: The drive motor 6 drives the fixed rod 7 to rotate, causing the fixed seat 11, which is fixed to the fixed rod 7, to rotate at high speed and generate centrifugal force. The centrifugal force drives the stabilizing block 13 to compress the spring 14 and slide, thereby causing the locking block 15 fixed in the middle of the stabilizing block 13 to lock into the slot 17, thereby driving the rotating frame 16 to rotate synchronously. The rotating frame 16 drives the drive gear 18 to rotate synchronously. Utilizing the meshing transmission between the drive gear 18 and the driven gear 19, the threaded rod 20 is driven to rotate stably. The rotating threaded rod 20 drives the threaded frame 22, which is threaded on its outer surface, to move vertically downward under the limiting guidance of the drill bit 9. The downward-moving threaded frame 22 synchronously drives the support blocks 23 fixed on both sides to move downward together. The two support blocks 23 are rotatably connected by the connecting frame 24 at their opposite ends, which pulls the sliding frame 25 rotatably connected to the other end of the connecting frame 24, causing it to slide vertically along the guide grooves 27 opened on both sides of the base 1. As the upper protruding section of the sliding frame 25 slides from the vertical section of the guide groove 27 to the horizontal section, the leveling frame 26 fixed at the lower end of the sliding frame 25 moves down to fit against the ground. As the threaded frame 22 continues to feed downwards, the two sets of sliding frames 25 and leveling frames 26, guided by the horizontal section of the guide groove 27, move away from each other, causing the leveling frame 26 to move laterally across the planting area surface. This leveling and compacting process removes surface weeds and debris simultaneously. This structure allows for simultaneous ground leveling and weed removal during the initial stages of digging, achieving integrated pre-treatment of the planting area. It eliminates the need for traditional manual leveling and cleaning, reduces manual intervention, lowers overall labor intensity, and effectively improves the ease of use of the planting digging equipment.

[0026] Example 3 During the process of digging planting pits with a drill bit, the excavated soil is scattered randomly as the drill bit rotates, resulting in a messy soil accumulation. After the saplings are planted, workers need to spend additional time manually building a ring-shaped earthen slope around the pit to form a closed, ring-shaped water-retaining soil basin for water retention. This step-by-step operation is cumbersome, requires a large amount of manual labor, and has low overall efficiency. Therefore, a structure that can automatically build the ring-shaped earthen slope simultaneously with the pit digging operation can be designed, eliminating the need for the subsequent separate construction of the embankment and basin, simplifying the planting process, and significantly improving the overall operating efficiency of the planting pit digging equipment.

[0027] Please see Figures 1-8 As shown, based on Embodiment 1, the function of automatically enclosing and forming a closed ring-shaped water-retaining soil pit has been added; Please refer to it again. Figures 1-8 As shown, two flattening frames 26 have conical frames 28 on their outer surfaces. A support ring 29 is fixed in the middle of the conical frame 28. A limit block 30 is fixed on one side of the support ring 29. A limit groove 31 is opened in the middle of the base 1. The outer surface of the conical frame 28 contacts the inclined surface of the two flattening frames 26 on the adjacent side. The middle of the conical frame 28 is fixed to the inner wall of the support ring 29. The cross-section of the support ring 29 is circular. One side of the support ring 29 is fixed to one end of the limit block 30. The outer surface of the other end of the limit block 30 is slidably connected to the limit groove 31. The inner wall has a T-shaped cross-section for the limiting block 30, and the limiting groove 31 is opened on one side of the middle of the base 1. The middle of the base 1 is hollowed out. Under its own weight, the conical frame 28 relies on the support ring 29 fixed in the middle and the limiting block 30 fixed on one side of the support ring 29 to fall steadily and vertically along the limiting groove 31 opened in the middle of the base 1 until it fits firmly into the leveled ground of the planting area. This prepares for the orderly accumulation of soil when the drill bit 9 digs the pit, ensuring that the annular water storage pit can be accurately formed.

[0028] The specific implementation process is as follows: The drive motor 6 drives the fixed rod 7 to rotate, causing the fixed seat 11, which is fixed to the fixed rod 7, to generate centrifugal force, which drives the stabilizing block 13 to compress the spring 14, and then drives the locking block 15 fixed in the middle of the stabilizing block 13 to insert into the locking slot 17, driving the rotating frame 16 to rotate synchronously. The rotating frame 16 drives the threaded rod 20 to rotate through the meshing of the driving gear 18 and the driven gear 19, which in turn drives the threaded frame 22 with the threaded connection on the outer surface to move smoothly downward under the limiting guidance of the drill bit 9. The downward-moving threaded frame 22 is driven by the connecting frame 24, which drives the two sets of leveling frames 26 to first descend vertically synchronously, and then spread out laterally away from each other. The conical frame 28 set on the leveling frame 26 relies on the support ring 29 fixed in the middle and the limiting block 30 fixed on one side of the support ring 29, and cooperates with the limiting groove 31 opened in the middle of the base 1 for limiting guidance, and moves down synchronously with the leveling frame 26. Once the two sets of leveling frames 26 are fully extended and detached from the conical frame 28, the conical frame 28 autonomously falls to the ground in the planting area. During the subsequent drilling operation, the soil spun up by the drill bit 9 is guided and compressed by the inner wall of the conical frame 28, accumulating orderly around the planting pit. This achieves automatic enclosure, forming a closed, annular water-retaining soil pit. The annular slope is simultaneously built during the pit digging operation, eliminating the need for separate manual construction of the enclosure later, simplifying the overall planting process, and effectively improving the overall operational efficiency of the planting pit digging equipment. After the digging is completed, the drive motor 6 drives the fixed rod 7 to rotate in the opposite direction, causing the drill bit 9 to reverse and synchronously reset upwards. Simultaneously, it drives the two sets of leveling frames 26 to move laterally closer together. The approaching leveling frames 26 use their inner inclined surfaces to press against the bottom of the conical frame 28, causing the conical frame 28 to rise upwards under the vertical constraint of the limiting block 30 and the limiting groove 31, ultimately resetting synchronously with the leveling frame 26 as a whole. After the equipment resets, the movable base 1 is removed from the work point, allowing the seedlings pre-placed in the plant placement trough 2 to be planted into the formed planting pit. The surrounding ring of soil is then appropriately gathered inwards, ensuring the inner soil completely covers the seedling roots while the outer soil maintains a ring-shaped raised structure, stably forming a water-retaining slope to meet the water retention and maintenance needs after planting.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tree planting and pit digging device for landscaping engineering construction, comprising a base (1), characterized in that: The base (1) has a plant placement slot (2) on one side, a handle (3) on the other side, casters (4) at the four corners of the lower end of the base (1), and a support frame (5) on one side of the upper end of the base (1). A drive motor (6) is fixed on the other side of the support frame (5). A fixed rod (7) is fixed on the drive end of the drive motor (6). A connecting structure is provided on the fixed rod (7). A ground drill bit (9) is provided on the connecting structure. On the one hand, the connecting structure can rotate the ground drill bit (9) around its own central axis; on the other hand, it can move the ground drill bit (9) in its own height direction to adaptively dig holes in the ground.

2. The tree planting and pit digging equipment for landscaping projects according to claim 1, characterized in that: The connection structure includes a fixed block (8) and a fixed seat (11). A ground drill bit (9) is slidably connected to the outer surface of the fixed block (8). A groove (10) is opened in the middle of the ground drill bit (9). A stabilizing groove (12) is opened on one side of the fixed seat (11). A stabilizing block (13) is slidably connected to the inner wall of the stabilizing groove (12). Springs (14) are fixed on both sides of the stabilizing block (13). A locking block (15) is fixed in the middle of the stabilizing block (13). A rotating frame (16) is provided on the outer surface of the locking block (15). A locking groove (17) is opened on one side of the rotating frame (16). A driving gear (18) is fixed on the lower side of the rotating frame (16). A driven gear (19) is meshed with the driving gear (18). A threaded rod (20) is fixed in the middle of the driven gear (19). A stabilizing disc (21) is fixed at the upper end of the threaded rod (20). A threaded frame (22) is threadedly connected to the outer surface of the threaded rod (20).

3. The tree planting and pit digging equipment for landscaping projects according to claim 2, characterized in that: The middle part of the fixing block (8) is fixed to the lower end of the fixing rod (7). The outer surface of the fixing block (8) is slidably connected to the inner wall of the slide groove (10). The slide groove (10) passes through the middle of the drill bit (9). The fixing rod (7) passes through the middle of the upper end of the slide groove (10). The outer surface of the fixing rod (7) is rotatably connected to the inner wall of one side of the support frame (5). One end of the support frame (5) is fixed to one side of the base (1). The vertical section of the support frame (5) is L-shaped.

4. The tree planting and pit digging equipment for landscaping projects according to claim 2, characterized in that: The fixed seat (11) is fixed on one side of the fixed rod (7), the stabilizing groove (12) is opened on one side of the fixed seat (11), the outer surface of the stabilizing block (13) is slidably connected to the inner wall of the stabilizing groove (12), one end of the two springs (14) is fixed on both sides of the stabilizing block (13), the other end of the two springs (14) is fixed on both sides of the inner wall of the stabilizing groove (12), one end of the locking block (15) is fixed in the middle of the stabilizing block (13), the outer surface of the locking block (15) is in contact with the inner wall of the rotating frame (16), and the outer surface of the locking block (15) is in contact with the inner wall of the locking groove (17).

5. The tree planting and pit digging equipment for landscaping projects according to claim 2, characterized in that: The outer surface of the rotating frame (16) is rotatably connected to the inner wall of the support frame (5). The vertical section of the rotating frame (16) is set in an I-shape. The lower side of the rotating frame (16) is fixed to the inner wall of the driving gear (18). The driving gear (18) meshes with the driven gear (19). The middle part of the driven gear (19) is fixed to the upper side of the threaded rod (20). The upper end of the threaded rod (20) is fixed to the middle of the stabilizing disk (21). The outer surface of the stabilizing disk (21) is rotatably connected to the inner wall of the other end of the support frame (5). One end of the threaded frame (22) is threaded to the outer surface of the threaded rod (20). The inner wall of the other end of the threaded frame (22) is rotatably connected to the outer surface of the upper end of the drill bit (9).

6. The tree planting and pit digging equipment for landscaping engineering construction according to claim 2, characterized in that: The threaded frame (22) has support blocks (23) fixed on both sides. The other end of each of the two support blocks (23) is rotatably connected to a connecting frame (24). The other end of each of the two connecting frames (24) is rotatably connected to a sliding frame (25). The other end of each of the two sliding frames (25) is fixed to a flat frame (26). The base (1) has guide grooves (27) on both sides.

7. The tree planting and pit digging equipment for landscaping engineering construction according to claim 6, characterized in that: The two support blocks (23) are fixed at their near ends on both sides of the threaded frame (22), and the two support blocks (23) are rotatably connected at their far ends to the near ends of the two connecting frames (24). The two connecting frames (24) are rotatably connected at their far ends to the upper ends of the two sliding frames (25).

8. A tree planting and pit digging device for landscaping engineering construction according to claim 6, characterized in that: The outer surfaces of the two sliding frames (25) are slidably connected to the inner walls of the two guide grooves (27). The two sliding frames (25) are arranged opposite to each other. The vertical cross-section of each sliding frame (25) is T-shaped. The lower ends of the two sliding frames (25) are fixed to the opposite ends of the two flattening frames (26). The two flattening frames (26) are symmetrically distributed. The cross-section of each flattening frame (26) is V-shaped.

9. A tree planting and pit-digging device for landscaping engineering construction according to claim 6, characterized in that: The outer surfaces of the two flattening frames (26) are provided with conical frames (28), a support ring (29) is fixed in the middle of the conical frame (28), a limit block (30) is fixed on one side of the support ring (29), and a limit groove (31) is opened in the middle of the base (1).

10. A tree planting and pit digging device for landscaping engineering construction according to claim 9, characterized in that: The outer surface of the conical frame (28) is in contact with the inclined surfaces of the two flat frames (26) on the same side. The middle part of the conical frame (28) is fixed to the inner wall of the support ring (29). The cross-section of the support ring (29) is circular. One side of the support ring (29) is fixed to one end of the limiting block (30). The outer surface of the other end of the limiting block (30) is slidably connected to the inner wall of the limiting groove (31). The cross-section of the limiting block (30) is T-shaped. The limiting groove (31) is opened on one side of the middle part of the base (1). The middle part of the base (1) is hollow.

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