A lifting machine special for forestry seedling

Abstract

This utility model relates to the technical field of forestry seedling auxiliary hoisting equipment, specifically disclosing a special hoisting machine for forestry seedlings, including an upper support arm, a lower support arm, and a hoisting arm. The hoisting arm and the lower support arm are fixedly connected by a bearing frame. A bearing ring is rotatably installed inside the bearing frame, and the upper support arm is fixedly installed on the bearing ring. A protective component is installed on the upper support arm to fix the tree trunk. A support plate is installed on the lower support arm to support and hold the tree roots. This utility model uses an adjustable upper and lower support arm to adapt to the hoisting of seedlings of different sizes and weights. The support plate on the lower support arm supports the root ball at the base of the tree, and an electric push rod is set on the upper support arm to control the angle of the tree trunk. During the hoisting process, the vertical angle of the tree trunk can be finely adjusted, eliminating the need for manual adjustment of the binding strap position, avoiding manual assistance during the hoisting process, reducing safety risks, and improving the efficiency of seedling hoisting.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary hoisting equipment for forestry seedlings, and specifically relates to a special hoisting machine for forestry seedlings. Background Technology

[0002] Tree sapling hoisting is a crucial step in modern tree transplantation, especially the transplantation of large trees. It involves using mechanical equipment (such as cranes and hoists) and auxiliary devices (such as slings and nets) to safely and efficiently transfer trees, especially saplings with root balls, from the excavation point to a transport vehicle or planting site. Before the widespread use of mechanical hoisting, tree transplantation relied mainly on manual labor and simple tools (such as logs, crowbars, and hand hoists). This was time-consuming and labor-intensive, unable to meet the demands of large-scale, high-efficiency landscaping and construction projects, and the handling of heavy objects could easily lead to accidents causing injury or death. Manual handling easily results in loosened and cracked root balls, abrasion or breakage of the bark, and severe damage to the root system and trunk, significantly reducing the survival rate of transplanted trees. Modern hoisting technology has evolved from simple binding with straw ropes and hemp ropes to using specialized materials such as wire mesh and nylon nets for wrapping and reinforcement. These materials provide uniform restraint, effectively preventing the root ball from collapsing under stress. Direct contact between slings and tree trunks generates immense pressure, easily damaging the bark (cambium) and disrupting the tree's nutrient transport system. Using flexible, wide slings instead of rigid cables like steel cables increases the stress-bearing area and distributes the pressure. Padding the area where the trunk contacts the slings with cushioning materials such as burlap sacks, rubber sheets, or wooden strips is especially important for tree species with valuable bark (such as camphor and crape myrtle).

[0003] Currently, the lifting of saplings involves using straps to secure cushioning materials and netting to protect the root ball. Regardless of the method, it's crucial to calculate the weight and center of gravity of the sapling (root ball + crown) and select a crane of appropriate tonnage and a suitable binding and installation position. Otherwise, the sapling may swing erratically during lifting, causing collisions and damage to other trees or equipment, affecting survival rates. This process is time-consuming and inefficient. Furthermore, the angle of the sapling cannot be adjusted during lifting. Loading and unloading from vehicles typically involves tilting the trunk, adjusting the angle by controlling the straps. However, planting or uprooting saplings is usually done vertically, and the straps cannot be adjusted during lifting, thus preventing angle adjustment. Manual assistance is required to reposition the sapling, posing significant safety hazards for workers under the crane. Therefore, a specialized sapling lifting machine needs to be designed to address the safety risks and low efficiency associated with manual angle adjustment during existing sapling lifting methods. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a special hoisting machine for forestry seedlings.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a special hoisting machine for forestry seedlings, including an upper support arm, a lower support arm and a hoisting arm. The hoisting arm and the lower support arm are fixedly connected by a bearing frame. A bearing ring is rotatably installed inside the bearing frame. The upper support arm is fixedly installed on the bearing ring. A protective component is installed on the upper support arm and the protective component fixes the tree trunk. A support plate is installed on the lower support arm and the support plate supports and holds the tree roots.

[0006] Specifically, the bearing frame and bearing ring form a bearing structure, the width of the bearing ring is greater than that of the bearing frame, and the portion of the bearing ring extending out of the bearing frame is connected to the upper support arm.

[0007] Specifically, an electric push rod two is installed on the upper support arm, a rotating shaft is installed on the telescopic rod of the electric push rod two, a support plate is installed on the other rotating side of the rotating shaft, protective parts are symmetrically installed on both sides of the support plate, and straps are connected to the outer side of the protective parts.

[0008] Specifically, the protective component is made of soft rubber and has a semi-circular ring structure. Two straps are wrapped around the tree trunk and then tied together.

[0009] Specifically, the lower support arm is provided with a mounting plate, the bottom of which is fixed with an arc-shaped support plate, and both sides of the mounting plate are fixed with arc-shaped side guards, which are set on both sides of the tree root.

[0010] Specifically, a protective plate is provided in the middle of the lower support arm, and the protective plate is made of rubber.

[0011] Specifically, an electric push rod is installed between the upper and lower support arms. An electric push rod mounting seat is fixedly installed in the middle of the lower support arm. The cylinder of the electric push rod is rotatably connected to the electric push rod mounting seat via a pin. The telescopic rod of the electric push rod is rotatably connected to the telescopic rod mounting seat via a pin. The telescopic rod mounting seat is fixed on the upper support arm. The electric push rod adjusts the angle between the upper and lower support arms.

[0012] Specifically, an electrical control box is installed on the lifting arm. The electrical control box contains an electrical control board and a power module. The power module is connected to an external power source through a power interface. The electrical control board is electrically connected to electric push rod one and electric push rod two. The electrical control board is equipped with an infrared transmitter and receiver tube, which is wirelessly connected to an external remote control.

[0013] Specifically, a lifting ring is fixedly provided at the top of the lifting arm.

[0014] This utility model has the following beneficial effects:

[0015] This utility model designs a special hoisting machine for forestry seedlings, which adopts adjustable upper and lower support arms to accommodate seedlings of different sizes and weights. The support plate on the lower arm supports the root ball of the tree, and the upper arm is equipped with an electric push rod to control the angle of the tree trunk. During the hoisting process, the vertical angle of the tree trunk can be finely adjusted, eliminating the need for manual adjustment of the binding straps. This avoids the need for manual assistance in hoisting the seedlings, reduces safety risks, and improves the efficiency of seedling hoisting. Attached Figure Description

[0016] Figure 1 This is a side view of a special hoisting machine for forestry seedlings.

[0017] Figure 2 This is a side view of a forestry seedling hoisting machine hoisting seedlings.

[0018] Figure 3 This is a top view of the protective component.

[0019] As shown in the figure: 1-Lower support arm; 2-Mounting plate; 3-Support plate; 4-Side guard plate; 5-Protective plate; 6-Electric push rod one; 7-Electric push rod mounting seat; 8-Telescopic rod mounting seat; 9-Upper support arm; 10-Electric push rod two; 11-Rotating shaft; 12-Protective parts; 13-Binding strap; 14-Lifting arm; 15-Lifting ring; 16-Electrical control box; 17-Bearing bracket; 18-Bearing ring; 19-Trunk; 20-Root. Detailed Implementation

[0020] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] like Figures 1-3 As shown, a special hoisting machine for forestry seedlings includes an upper support arm 9, a lower support arm 1, a protective component 12, and a hoisting arm 14. The hoisting arm 14 and the lower support arm 1 are both fixedly connected by a bearing frame 17. A bearing ring 18 is rotatably installed inside the bearing frame 17. The bearing frame 17 and the bearing ring 18 form a bearing structure. The width of the bearing ring 18 is greater than that of the bearing frame 17. The portion of the bearing ring 18 extending out of the bearing frame 17 is connected to the upper support arm 9.

[0022] An upper support arm 9 is fixedly installed on the bearing ring 17. A protective component 12 is installed on the upper support arm 9, and the protective component 12 fixes the tree trunk 19. An electric push rod 2 10 is installed on the upper support arm 9. A rotating shaft 11 is installed on the telescopic rod of the electric push rod 2 10. A support plate is installed on the other rotating side of the rotating shaft 11. Protective components 12 are symmetrically installed on both sides of the support plate. The outer side of the protective component 12 is connected to the binding strap 13. The protective component 12 is made of soft rubber and has a semi-circular ring plate structure. The two binding straps 13 are wrapped around the tree trunk 19 and then tied together.

[0023] A support plate 3 is installed on the lower support arm 1, which supports and holds the root ball of the tree root 20. A mounting plate 2 is provided on the lower support arm 1, and an arc-shaped support plate 3 is fixed to the bottom of the mounting plate 2. Arc-shaped side guard plates 4 are fixed to both sides of the mounting plate 2. The side guard plates 4 are set on both sides of the root ball of the tree root 20 to effectively protect the root ball of the tree root 20.

[0024] A protective plate 5 is provided in the middle of the lower support arm 1. The protective plate 5 is made of rubber.

[0025] An electric push rod 6 is installed between the upper support arm 9 and the lower support arm 1. An electric push rod mounting seat 7 is fixedly installed in the middle of the lower support arm 1. The cylinder of the electric push rod 6 is rotatably connected to the electric push rod mounting seat 7 via a pin. The telescopic rod of the electric push rod 6 is rotatably connected to the telescopic rod mounting seat 8 via a pin. The telescopic rod mounting seat 8 is fixed on the upper support arm 9. The electric push rod 6 adjusts the angle between the upper support arm 9 and the lower support arm 1.

[0026] An electrical control box 16 is installed on the lifting arm 14. The electrical control box 16 contains an electrical control board and a power module. The power module is connected to an external power source through a power interface. The electrical control board is electrically connected to electric push rod 6 and electric push rod 10. The electrical control board is equipped with an infrared transmitter and receiver tube. The infrared transmitter and receiver tube is wirelessly connected to an external remote control. The movement of electric push rod 6 and electric push rod 10 can be remotely controlled by the remote control.

[0027] A lifting ring 15 is fixedly installed at the top of the lifting arm 14, and a hook of the crane is connected to the lifting ring 15.

[0028] The working principle of this utility model is as follows: During operation, the hoisting machine is attached to the hook of the crane via the hoisting ring 15. The power supply of the crane body is connected to the power interface of the electrical control box 16. The pallet of the hoisting machine is inserted into the bottom of the root ball of the tree root 20. The angle of the upper support arm 9 is controlled by the movement of the electric push rod 1 6 via the remote control. Then, the extension length of the electric push rod 2 10 is adjusted. The protective part 12 is wrapped around the outer ring of the tree trunk 19. The binding strap is wrapped around the tree trunk several times and then knotted. Then, the hoisting operation is carried out. During the hoisting process, the angle of the tree trunk 19 is adjusted by the remote control. If it is to be planted in a pit, the extension length of the electric push rod 2 10 is used to control the tree trunk 19 to remain vertical and directly enter the planting pit. If it is to be loaded onto a vehicle, the extension length of the electric push rod 2 10 is used to control the tree trunk 19 to tilt to one side towards the center. The adjustable upper support arm 9 and lower support arm 1 are suitable for hoisting seedlings of different sizes and weights. The support plate 3 on the lower support arm 1 supports the root ball of the tree. The upper support arm 9 is equipped with an electric push rod to control the angle of the trunk 19. The vertical angle of the trunk 19 can be finely adjusted during the hoisting process, eliminating the need for manual adjustment of the position of the binding strap 13. This avoids the need for manual assistance in the hoisting process, reduces safety risks, and improves the efficiency of seedling hoisting.

[0029] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

[0030] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A special hoisting machine for forestry seedlings, characterized in that, It includes an upper support arm, a lower support arm, and a lifting arm. The lifting arm and the lower support arm are fixedly connected by a bearing frame. A bearing ring is rotatably installed inside the bearing frame. The upper support arm is fixedly installed on the bearing ring. A protective component is installed on the upper support arm to fix the tree trunk. A support plate is installed on the lower support arm to support and hold the tree roots.

2. The forestry seedling hoisting machine according to claim 1, characterized in that, The bearing frame and bearing ring form a bearing structure. The width of the bearing ring is greater than that of the bearing frame, and the portion of the bearing ring extending out of the bearing frame is connected to the upper support arm.

3. The forestry seedling hoisting machine according to claim 2, characterized in that, The upper support arm is equipped with an electric push rod II. A rotating shaft is installed on the telescopic rod of the electric push rod II. A support plate is installed on the other rotating side of the rotating shaft. Protective components are symmetrically installed on both sides of the support plate. Straps are connected to the outer side of the protective components.

4. The forestry seedling hoisting machine according to claim 3, characterized in that, The protective component is made of soft rubber and has a semi-circular ring structure. Two straps are wrapped around the tree trunk and then tied together.

5. The forestry seedling hoisting machine according to claim 1, characterized in that, The lower support arm is equipped with a mounting plate, and an arc-shaped support plate is fixed at the bottom of the mounting plate. Arc-shaped side guards are fixed on both sides of the mounting plate, and the side guards are set on both sides of the tree root.

6. The forestry seedling hoisting machine according to claim 1, characterized in that, The lower support arm is equipped with a protective plate in the middle, which is made of rubber.

7. The forestry seedling hoisting machine according to claim 3, characterized in that, An electric push rod is installed between the upper and lower support arms. An electric push rod mounting seat is fixedly installed in the middle of the lower support arm. The cylinder of the electric push rod is rotatably connected to the electric push rod mounting seat via a pin. The telescopic rod of the electric push rod is rotatably connected to the telescopic rod mounting seat via a pin. The telescopic rod mounting seat is fixed on the upper support arm. The electric push rod adjusts the angle between the upper and lower support arms.

8. The forestry seedling hoisting machine according to claim 7, characterized in that, An electrical control box is installed on the lifting arm. The electrical control box contains an electrical control board and a power module. The power module is connected to an external power source through a power interface. The electrical control board is electrically connected to electric push rod one and electric push rod two. The electrical control board is equipped with an infrared transmitter and receiver tube, which is wirelessly connected to an external remote control.

9. The forestry seedling hoisting machine according to claim 1, characterized in that, A lifting ring is fixedly installed at the top of the lifting arm.

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