A tree planting shovel

Abstract

The utility model discloses a kind of afforestation spades, it is afforestation tool technical field, the outer wall of the side of the spade head close to one side threaded hole is hinged with mounting plate by pin shaft, the mounting plate side is fixedly connected with several screening teeth, mounting plate lower end is fixedly connected with magnet, and mounting plate close to the side threaded hole upper end is fixedly connected with the L-shaped rod with threaded hole, the L-shaped rod and spade head are commonly screwed with first bolt by threaded hole, the beneficial effects of the utility model are: through the spade head hinged foldable mounting plate, the screening tooth and magnet on it, targeted root system processing structure, unfold mounting plate, screening tooth can gently comb the fibrous root of seedling entanglement, avoid the problem of fine fibrous root breakage caused by traditional manual combing, remove excess adhesive soil adhered to root system by screening tooth, accurately control the amount of mud, prevent the compaction soil block from blocking root system gap, magnet can also adsorb mixed small iron nail, iron wire and other metal impurities in soil.

Description

Technical Field

[0001] This utility model relates to the technical field of afforestation tools, specifically a afforestation shovel. Background Technology

[0002] In afforestation operations, the afforestation shovel, as a core tool, undertakes key tasks such as digging pits, soil preparation, and assisting in seedling planting. Its functional design, structural stability, and ease of operation directly affect afforestation efficiency, seedling planting quality, and the labor intensity of operators. However, currently available afforestation shovels still have several technical shortcomings in practical applications, making them difficult to adapt to the needs of complex afforestation scenarios (such as seedling cultivation and planting in mountainous areas, operations in clay soil plots, and seedling transplantation). Specific problems are as follows: The lack of specialized structures for root sorting and excess soil removal makes it difficult to guarantee planting quality. Planting seedlings is a crucial step in afforestation, requiring ensuring the seedling roots are naturally spread out to fully contact the soil, while removing excess soil attached to the roots (to prevent sticky soil clumps from hindering root respiration or excessive soil from burying the seedlings too deeply) to improve survival rates. However, existing afforestation shovels mostly have single curved or flat heads, only possessing basic soil-shoveling functions, lacking specialized structures for root sorting and excess soil removal. In practice, operators must manually sort through tangled roots (which easily leads to the breakage of delicate roots, affecting nutrient absorption), or scrape the roots with the shovel surface to remove excess soil (which easily scratches the root epidermis and makes it difficult to precisely control the amount of soil removed, with some compacted soil still attached to the root spaces). This manual process is particularly time-consuming for seedlings with well-developed fibrous roots, such as pines and firs. The handle is not adjustable enough and has poor ergonomic adaptability. The handle and connecting rod of the existing afforestation shovel are mostly fixed connection structures. The height and grip position cannot be flexibly adjusted according to the height of the operator (such as adult workers and teenagers as assistants) or the working posture (such as standing to dig holes, bending over to trim the planting hole wall, and squatting to assist in the planting of seedlings). Low functional integration and frequent tool switching required in multi-scenario operations: In the afforestation process, in addition to basic shoveling and digging, auxiliary operations such as cutting small shrub branches that obstruct the operation, breaking hardened soil clods, and smoothing the edges of planting pits are also required. Existing afforestation shovels only focus on a single shoveling function. When facing the above scenarios, operators need to carry additional tools such as saws, breakers, and small hoes, which not only increases the weight of the equipment (especially in mountain afforestation, transporting tools on foot is time-consuming and laborious), but also requires frequent switching of tool types, leading to interruptions in the operation process; The shovel head has insufficient structural strength, is easily damaged, and has a short lifespan. Some existing afforestation shovels, in order to control production costs and overall weight, do not have reinforced structures in key stress-bearing parts of the shovel head (such as the connection between the shovel head and the connecting rod, and the edge of the shovel head). When digging hard soil, impacting rocks, or dealing with compacted soil, the shovel head is prone to deformation and cracking of the cutting edge, requiring frequent replacement of the shovel head and increasing maintenance costs. At the same time, shovel head deformation can also lead to irregular hole sizes in subsequent digging, affecting the root growth space when planting seedlings. Utility Model Content

[0003] The purpose of this utility model is to provide a tree planting shovel to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tree planting shovel, comprising a shovel head with threaded holes at the upper middle and one side, an mounting plate hinged to the outer wall of the shovel head near one of the threaded holes via a pin, a plurality of screening teeth fixedly connected to one side of the mounting plate, a magnet fixedly connected to the lower end of the mounting plate, and an L-shaped rod with a threaded hole fixedly connected to the upper end of the mounting plate near the threaded hole, the L-shaped rod and the shovel head being threadedly connected to a first bolt through the threaded hole.

[0005] Preferably, a stud is threaded into the threaded hole at the middle of the upper end of the shovel head, and a connecting rod is fixedly connected to the upper end of the stud. Sliding grooves are opened on both sides of the connecting rod, and sliders are slidably connected to both sides of the sliding grooves. A connecting cylinder with an ergonomic grip is fixedly connected to the opposite side of the sliders. Several slots with threaded holes are opened on the wall of the connecting rod, and a threaded insertion hole is opened on the lower outer side of the connecting cylinder. The insertion hole and the corresponding slot are threadedly connected to a second bolt.

[0006] Preferably, a cutting blade is fixedly connected to one side of the lower end of the shovel head, a saw blade is fixedly connected to the upper end of the side of the shovel head away from the cutting blade, and a crushing cone is fixedly connected to the lower end of the shovel head.

[0007] Preferably, a triangular reinforcing rib is fixedly connected to the back of the shovel head.

[0008] Preferably, the side of the shovel head away from the mounting plate is fixedly connected to a sleeve into which a connecting cylinder can be inserted.

[0009] Preferably, the upper ends of both the first bolt and the second bolt are fixedly connected to a turntable.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By hinged to the foldable mounting plate of the shovel head, and combined with the sieving teeth and magnets thereon, a targeted root treatment structure is formed. When in use, the mounting plate is unfolded, and the sieving teeth can gently comb through the tangled fibrous roots of the seedlings, avoiding the problem of breaking the delicate fibrous roots caused by traditional manual combing. At the same time, the sieving teeth can scrape off the excess sticky soil attached to the roots, precisely controlling the amount of soil removed and preventing compacted soil clogging the gaps between the roots. The magnets can also attract small iron nails, iron wires and other metal impurities mixed in the soil, preventing them from scratching the root epidermis. When not in use, the mounting plate can be folded and attached to the shovel head by the L-shaped rod and the first bolt, without affecting basic operations such as shoveling. This ensures the integrity and respiration function of the root system from the root, and significantly improves the survival rate of seedlings after planting. To address the issue of insufficient adjustability in existing grips, this invention features a flexibly adjustable grip structure. The connecting rod is securely connected to the shovel head via studs, and the connecting cylinder can slide up and down along the connecting rod using a groove and slider. Combined with the fixing effect of the slot and the second bolt, the height of the connecting cylinder and the grip position can be precisely adjusted according to the operator's height (e.g., adult workers and adolescent assistants) and working posture (standing to dig holes, bending over to trim planting pit walls, squatting to assist planting), ensuring the grip always conforms to ergonomic design. This effectively avoids the stiff posture problem caused by a fixed grip, reduces muscle fatigue after prolonged work, and significantly reduces the operator's labor intensity. This invention breaks through the limitations of traditional shovels with a single function, integrating multiple practical structures into the shovel head: the cutting blade can quickly cut small shrub branches that obstruct the operation, the saw blade can handle thicker branches, the crushing cone can efficiently crush hard soil clods and small rocks, and the root treatment function of the screening teeth realizes the full-process operation coverage of "shoveling soil - digging holes - branch cutting - hard soil crushing - root sorting". Operators do not need to carry additional tools such as saws, breakers, and small hoes. It is especially suitable for mountainous areas and other scenarios where hiking and transportation are difficult. It reduces the weight of equipment and avoids operation interruptions caused by frequent tool switching, significantly improving the operation efficiency of the entire afforestation process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall external structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the folded structure of the screening teeth in this utility model; Figure 4 This is a schematic diagram showing the disassembled structure of the connecting rod and connecting cylinder in this utility model; Figure 5 This is a cross-sectional view of the connecting cylinder in this utility model; Figure 6 This utility model Figure 1 A magnified structural diagram of part A in the middle; Figure 7 This utility model Figure 2 A magnified structural diagram of part B.

[0012] In the diagram: 1. Shovel head; 2. Mounting plate; 3. Screening teeth; 4. Magnet; 5. L-shaped rod; 6. First bolt; 7. Stud; 8. Connecting rod; 9. Slide groove; 10. Sliding block; 11. Connecting cylinder; 12. Slot; 13. Insertion hole; 14. Saw blade; 15. Cutting blade; 16. Crushing cone; 17. Sleeve; 18. Second bolt. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-7 This utility model provides a technical solution: a tree planting shovel, including a shovel head 1 with threaded holes at the upper middle and one side, characterized in that: an installation plate 2 is hinged to the outer wall of the shovel head 1 near one of the threaded holes by a pin; several screening teeth 3 are fixedly connected to one side of the installation plate 2; a magnet 4 is fixedly connected to the lower end of the installation plate 2; and an L-shaped rod 5 with a threaded hole is fixedly connected to the upper end of the installation plate 2 near the threaded hole. The L-shaped rod 5 and the shovel head 1 are threadedly connected to a first bolt 6 through the threaded hole; a stud 7 is threadedly connected to the threaded hole at the upper middle of the shovel head 1; a connecting rod 8 is fixedly connected to the upper end of the stud 7; grooves 9 are opened on both sides of the connecting rod 8; sliders 10 are slidably connected to both sides of the grooves 9; sliders 10... The connecting cylinder 11 with an ergonomic handle is fixedly connected to the opposite side of the connecting rod 8. The connecting rod 8 has several slots 12 with threaded holes on its wall. The connecting cylinder 11 has a threaded insertion hole 13 on its lower outer side. The insertion hole 13 and the corresponding slot 12 are threadedly connected to the second bolt 18. The cutting blade 15 is fixedly connected to one side of the lower end of the shovel head 1. The saw blade 14 is fixedly connected to the upper end of the side of the shovel head 1 away from the cutting blade 15. The crushing cone 16 is fixedly connected to the lower end of the shovel head 1. The reinforcing rib arranged in a triangle is fixedly connected to the back of the shovel head 1. The sleeve 17 into which the connecting cylinder 11 can be inserted is fixedly connected to the side of the shovel head 1 away from the mounting plate 2. The turntable is fixedly connected to the upper end of both the first bolt 6 and the second bolt 18.

[0015] Specifically, when using this utility model, Adjustable grip structure (ergonomically designed) This step involves adjusting the handle position based on the operator's height (e.g., adult workers or teenage assistants) and work posture (standing to dig holes, bending over to trim the planting hole walls, squatting to assist in planting seedlings) to reduce labor intensity. Specific instructions are as follows: First, remove the connecting cylinder 11 from inside the sleeve 17. Then, thread the stud 7 and the shovel head 1 together via the connecting rod 8. The operator holds the turntable at the upper end of the second bolt 18 and rotates it counterclockwise to gradually remove the second bolt 18 from the insertion hole 13 of the connecting cylinder 11 and the slot 12 of the connecting rod 8, thus releasing the fixing constraint on the connecting cylinder 11. Then, holding the ergonomic handle on the outside of the connecting cylinder 11 with both hands, slide the connecting cylinder 11 up and down along the length of the connecting rod 8. At this time, the slider 10 fixed inside the connecting cylinder 11 moves along the connecting rod 8. The sliding grooves 9 on both sides of the rod 8 slide synchronously to ensure that the connecting cylinder 11 moves stably and does not deflect. When the connecting cylinder 11 slides to a position that matches the operator's height and working posture, it stops sliding. Observe the insertion hole 13 of the connecting cylinder 11 and the slot 12 on the rod wall of the connecting rod 8 to align their axes. Then rotate the turntable of the second bolt 18 clockwise to screw the second bolt 18 into the insertion hole 13 and the aligned slot 12 in sequence until the nut of the second bolt 18 is tightly fitted to the outer wall of the connecting cylinder 11, thus completing the fixation of the grip structure.

[0016] Multi-scenario operation (covering the entire afforestation process) This step targets core operational scenarios in afforestation, such as shoveling and digging pits, cutting branches, breaking up hard soil, and treating root systems. It utilizes the integrated functional structure of shovel head 1 to achieve one-stop operation, as detailed below: This operation relies on the main structure of shovel head 1 and the triangular reinforcing ribs on its back (to ensure that shovel head 1 does not deform under stress) to complete the excavation of planting pits and soil preparation. The steps are as follows: The operator holds the adjusted handle of the connecting cylinder 11 with both hands, and faces the curved shovel head 1 toward the soil to be excavated; by applying force with the arm, the operator pushes the shovel head 1 into the soil, uses the volume of the shovel head 1 to scoop up the soil and transfer it to the designated stacking area; the operator gradually digs downwards, and during this process, the pit wall can be trimmed with the edge of the shovel head 1 to make the pit wall flat and the pit size meet the requirements for seedling planting. At the same time, the cutting blade 15 or saw blade 14 integrated into the shovel head 1 are used to process and prune the tree branches; For small rocks in areas of soil compaction or in planting pits, the crushing cone 16 at the lower end of the shovel head 1 is used to crush them.

[0017] Tree seedling root treatment operation This operation involves root sorting, removal of excess soil, and cleaning of metal impurities before planting the seedlings. It is accomplished using the foldable mounting plate 2 (with sieve teeth 3 and magnet 4), and the steps are as follows: The operator holds the mounting plate 2 and pulls it. At this time, the magnet 4 at the lower end of the mounting plate 2 will disengage from the shovel head 1. Then, the mounting plate 2 is rotated around the hinge pin between the mounting plate 2 and the shovel head 1 until the mounting plate 2 is perpendicular to the outer wall of the shovel head 1 (the screening teeth 3 are facing away from the shovel head 1). At this time, the threaded hole on the L-shaped rod 5 is aligned with the axis of the threaded hole on one side of the shovel head 1. The turntable of the first bolt 6 is rotated clockwise to screw the first bolt 6 into the aligned threaded hole until the L-shaped rod 5 and the shovel head 1 are tightly fitted together, thus completing the fixing of the mounting plate 2. Gently attach the roots of the sapling to be planted to the sieve teeth 3 on the mounting plate 2; the operator slowly moves the sapling roots so that the sieve teeth 3 are inserted into the entanglement gaps of the roots, and the entangled fibrous roots are gently separated by the tooth-shaped structure of the sieve teeth 3 (avoiding the breakage of the delicate fibrous roots); at the same time, the sticky soil attached to the root surface can be removed by the scraping action of the sieve teeth 3, accurately controlling the amount of soil removed (leaving a thin layer of root protection soil on the root surface to avoid excessive soil removal leading to water loss of the roots), and preventing the compacted soil clogging the gaps between the roots; During the root treatment process, the magnet 4 at the lower end of the mounting plate 2 can adsorb small iron nails, iron wires and other metal impurities mixed in the soil (to avoid metal impurities scratching the root epidermis); after the root treatment is completed, the metal impurities adsorbed on the magnet 4 can be manually peeled off.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tree planting shovel, comprising a shovel head (1) with threaded holes at the upper middle and on one side, characterized in that: The outer wall of the shovel head (1) near the threaded hole is hinged to a mounting plate (2) by a pin. Several screening teeth (3) are fixedly connected to one side of the mounting plate (2). A magnet (4) is fixedly connected to the lower end of the mounting plate (2). An L-shaped rod (5) with a threaded hole is fixedly connected to the upper end of the mounting plate (2) near the threaded hole. The L-shaped rod (5) and the shovel head (1) are threaded together by a first bolt (6) through the threaded hole.

2. The afforestation shovel according to claim 1, characterized in that: The threaded hole at the upper middle of the shovel head (1) is threaded to a stud (7), and the upper end of the stud (7) is fixedly connected to a connecting rod (8). The connecting rod (8) has a sliding groove (9) on both sides, and a slider (10) is slidably connected to both sides of the sliding groove (9). The slider (10) is fixedly connected to a connecting cylinder (11) with an ergonomic grip on the opposite side. The connecting rod (8) has several slots (12) with threaded holes on its wall, and the connecting cylinder (11) has a threaded insertion hole (13) on the lower outer side. The insertion hole (13) and the corresponding slot (12) are threadedly connected to a second bolt (18).

3. The afforestation shovel according to claim 1, characterized in that: The cutting blade (15) is fixedly connected to one side of the lower end of the shovel head (1), the saw blade (14) is fixedly connected to the upper end of the side of the shovel head (1) away from the cutting blade (15), and the crushing cone (16) is fixedly connected to the lower end of the shovel head (1).

4. The afforestation shovel according to claim 1, characterized in that: The shovel head (1) is fixedly connected to a triangular reinforcing rib on its back.

5. The afforestation shovel according to claim 1, characterized in that: The shovel head (1) is fixedly connected to a sleeve (17) on the side away from the mounting plate (2) where a connecting cylinder (11) can be inserted.

6. The afforestation shovel according to claim 1, characterized in that: The turntable is fixedly connected to the upper end of both the first bolt (6) and the second bolt (18).

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