A tree felling aid

Abstract

A kind of tree felling auxiliary device, including movable support rod, fixed support rod, positioning support rod, rotating sleeve, worm, fixed base plate, rotating rod, the fixed support rod has placement slot, placement slot is adapted to rotating sleeve, placement slot is connected rotating sleeve, rotating sleeve outside has worm wheel, worm wheel is adapted to worm, worm wheel is connected worm, worm is connected with shaft, shaft is connected with outer bearing inside, outer bearing outside is connected with fixed support rod, shaft is divided into driving shaft and support shaft, the outer end of driving shaft has crank handle, crank handle is attached to fixed support rod, the outer end of support shaft has baffle, baffle is attached to fixed support rod, fixed support rod is connected with sealing plate by screw, the rotating sleeve inside is connected with positioning support rod, positioning support rod passes through fixed support rod and rotating sleeve in sequence, rotating sleeve has multiple drive lugs, positioning support rod has multiple drive grooves, drive lug is adapted to drive groove, drive lug is connected with drive groove.

Description

Technical Field

[0001] This utility model relates to the field of tree harvesting, and in particular to a tree harvesting auxiliary device. Background Technology

[0002] An existing patent (publication number: CN214339113U) discloses a tree-directing falling auxiliary rope device, including a support rod, a U-shaped support frame, a movable plate, and a rope. The U-shaped support frame is fixed to the top of the support rod. A first U-shaped fixing frame is fixed to one end of the U-shaped support frame, and a second U-shaped fixing frame is fixed to the other end. A first rotating shaft is fixed between the two ends of the first U-shaped fixing frame, and a second rotating shaft is fixed between the two ends of the second U-shaped fixing frame. A first U-shaped rotating groove is provided on the upper side of one end of the movable plate, and a second U-shaped rotating groove is provided on the lower side of the other end. The first U-shaped rotating groove is rotatably connected to the first rotating shaft, and the second U-shaped rotating groove is rotatably connected to the second rotating shaft. One end of the rope is fixedly connected to the end of the movable plate near the second U-shaped rotating groove. However, this device requires the rope to be wound around a designated position on the tree trunk during use. The rope position needs to be repeatedly adjusted during operation, resulting in low work efficiency. In addition, the rope is prone to slippage or displacement, increasing the safety risk of uncontrolled tree falling, and has drawbacks. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings of existing technologies by providing a tree felling auxiliary device that restricts the direction of tree fall, ensures the safety of tree felling operations, and allows for flexible adjustment of the support height and angle of the support poles according to actual felling needs such as the tree's growth angle. It is highly adaptable, easy to control and adjust, and convenient to carry in field operations.

[0004] The objective of this utility model is achieved through the following technical solution: A tree harvesting auxiliary device includes a movable support rod, a fixed support rod, a positioning support rod, a rotating sleeve, a worm gear, a fixed base plate, and a rotating rod. The fixed support rod has a placement groove that adapts to the rotating sleeve and is connected to it. The rotating sleeve has a worm wheel on its exterior that adapts to the worm gear and is connected to it. The worm gear is connected to the worm gear, which is in turn connected to a shaft. The shaft is connected to the interior of an outer bearing, and the fixed support rod is connected to the exterior of the outer bearing. The shaft is divided into a drive shaft and a support shaft. The drive shaft has a handle at its outer end that fits against the fixed support rod. The support shaft has a baffle at its outer end that fits against the fixed support rod. The fixed support rod is connected to a sealing plate by screws. The rotating sleeve is internally connected to the positioning support rod, which passes through the fixed support rod and the rotating sleeve in sequence. The rotating sleeve has multiple drive protrusions, and the positioning support rod has multiple drive grooves. The drive protrusions adapt to the drive grooves and are connected to them.

[0005] The positioning support rod of this utility model has a protruding rod at its inner end, which is connected to the interior of the inner bearing. A fixed support rod is connected to the exterior of the inner bearing, and a handle is connected to the exterior of the fixed support rod. The fixed support rod has a slide rail inside, which is adapted to the movable support rod. The movable support rod is connected to the slide rail and slides within the slide rail. The movable support rod has a top block at its outer end, and the positioning support rod is connected to the interior of the movable support rod by a thread.

[0006] The fixed support rod of this utility model is connected to a support plate at its lower end. The support plate has a fixed base plate at its lower part. The fixed base plate is connected to the ground. The fixed base plate has multiple spikes that are inserted into the soil. The support plate is divided into a left support plate and a right support plate. The left support plate has an installation sleeve on its outside. Beneficial effects

[0007] This utility model features a meshing transmission between a worm gear and a worm, which works in conjunction with the embedded engagement between a rotating sleeve and a positioning support rod. Utilizing the threaded positioning between the positioning support rod and the movable support rod, the movable support rod can be guided and displaced within the slide by rotating a crank. Combined with the angle adjustment of the fixed support rod, the top block can be precisely embedded into a pre-drilled directional notch at the bottom of the tree trunk, forming a tight and stable support with the inner wall of the notch. This restricts the direction of tree fall during the felling process, prevents trees from falling out of control, and ensures the safety of tree felling operations.

[0008] The worm gear and worm shaft transmission method of this utility model has a self-locking characteristic, which can stably maintain the fixed position of the movable support rod and the top block, and prevent the reverse reaction due to the reaction force of the tree, ensuring that the support rod supports the tree continuously and stably. In addition, the crank handle allows the operator to easily adjust the position of the support rod by manpower without the need for additional power equipment. It is convenient to operate and suitable for field logging scenarios without power supply. The handle can be conveniently carried in the field and for controlling and adjusting the angle of the support rod.

[0009] This utility model features a fixed base plate with multiple spikes at the bottom. During installation, these spikes can penetrate deep into the soil, enhancing the overall stability of the device's connection to the ground and effectively resisting the impact force generated when trees fall, thus preventing the entire device from shifting. Simultaneously, the angle between the fixed support rod and the support plate is adjustable via a rotating rod. A locking structure using locking blocks and grooves allows for quick locking and unlocking of the adjusted support rod angle, ensuring stable support while allowing for flexible adjustment of the support angle according to the tree's tilt and harvesting needs. This meets the harvesting assistance requirements for trees at different growth angles, demonstrating strong adaptability.

[0010] This utility model ensures the safety of tree felling operations by limiting the direction of tree fall. It can also flexibly adjust the support height and angle of the support pole according to the actual felling needs such as the tree growth angle. It has strong adaptability, and the control and adjustment are convenient and easy to carry for field operations. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a tree harvesting auxiliary device according to the present invention.

[0012] Figure 2 This is a cross-sectional view of the structure of a tree harvesting auxiliary device according to the present invention.

[0013] Figure 3 This is a cross-sectional view of the positioning support rod drive structure described in this utility model.

[0014] Figure 4 This is a cross-sectional view of the connection structure between the fixed strut and the support plate described in this utility model.

[0015] Figure 5 This is a schematic diagram of the fixed support structure described in this utility model.

[0016] Figure 6 This is a schematic diagram of the positioning support rod driving structure described in this utility model.

[0017] Figure 7 This is a cross-sectional view of the rotating rod and fixed base plate structure described in this utility model.

[0018] Figure 8 The present utility model Figure 2 Enlarged view of a local structure. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Example 1: A tree harvesting auxiliary device includes a movable support rod 02, a fixed support rod 03, a positioning support rod 06, a rotating sleeve 09, a worm gear 11, a fixed base plate 20, and a rotating rod 24. The fixed support rod 03 has a placement groove 18, which is adapted to the rotating sleeve 09 and connected to it. The rotating sleeve 09 has a worm wheel 10 on its exterior, which is adapted to the worm gear 11 and connected to it. The worm gear 10 is connected to the worm gear 11, which is connected to a shaft 15. The shaft 15 is connected to the interior of an outer bearing 14, and the fixed support rod 03 is connected to the exterior of the outer bearing 14. The shaft 15 is divided into a drive shaft 151 and a support shaft 152. The drive shaft 151 has a crank handle 16 at its outer end, which fits against the fixed support rod 03. The support shaft 152 has a baffle 17 at its outer end, which fits against the fixed support rod 03. The fixed support rod 03 is connected to a sealing plate 19 by screws. The rotating sleeve 09 is internally connected to a positioning support rod. The support rod 06 and the positioning support rod 06 pass sequentially through the fixed support rod 03 and the rotating sleeve 09. The rotating sleeve 09 has multiple driving protrusions 12, and the positioning support rod 06 has multiple driving grooves 13. The driving protrusions 12 and the driving grooves 13 are adapted to each other and are connected to the driving grooves 13. The meshing transmission between the worm gear 10 and the worm 11 cooperates with the embedded engagement between the rotating sleeve 09 and the positioning support rod 06. The threaded positioning between the positioning support rod 06 and the movable support rod 02 allows the movable support rod 02 to be guided and displaced within the slide rail 04 by rotating the rocker handle 16. With the angle adjustment of the fixed support rod 03, the top block 01 can be accurately embedded into the pre-opened directional notch at the bottom of the tree trunk, forming a tight and stable support with the inner wall of the notch. This limits the falling direction of the tree during the felling process, prevents the tree from falling out of control, and ensures the safety of the tree felling operation.

[0020] Example 2: The positioning support rod 06 of this utility model has a protruding rod 07 at its inner end, which is connected to the interior of the inner bearing 08. The inner bearing 08 is externally connected to the fixed support rod 03, and the fixed support rod 03 is externally connected to the handle 05. The fixed support rod 03 has a slide rail 04 inside, which is adapted to the movable support rod 02. The movable support rod 02 is connected to the slide rail 04 and slides within the slide rail 04. The outer end of the movable support rod 02 has a top block 01, and the positioning support rod 06 is internally connected to the movable support rod 02 via a thread. The transmission method of the worm gear 10 and worm 11 has a self-locking characteristic, which can stably maintain the fixed position of the movable support rod 02 and the top block 01, preventing reversal due to the reaction force of the tree, and ensuring that the support rod supports the tree continuously and stably. In addition, the setting of the crank 16 allows the operator to easily adjust the position of the support rod by manpower without the need for additional power equipment. It is convenient to operate and suitable for field logging scenarios without power supply. The handle 05 makes it convenient to carry the device in the field and to control and adjust the angle of the support rod.

[0021] Example 3: The fixed support rod 03 of this utility model is connected to a support plate 22 at its lower end. The support plate 22 has a fixed base plate 20 at its lower part, which is connected to the ground. The fixed base plate 20 has multiple spikes 21, which are inserted into the soil. The support plate 22 is divided into a left support plate 221 and a right support plate 222. The left support plate 221 has an installation sleeve 28 on its outside. Multiple spikes 21 are set at the bottom of the fixed base plate 20. During installation, the spikes 21 can penetrate deep into the soil, enhancing the overall connection stability between the device and the ground, effectively resisting the impact force generated when trees fall, and preventing the overall displacement of the device. At the same time, the fixed support rod 03 and the support plate 22 can be adjusted at an angle through a rotating rod 24. The locking structure of the locking block 29 and the locking groove 30 can be used to quickly lock and unlock the adjusted support rod angle, ensuring stable support force. The support angle can be flexibly adjusted according to the tree tilt trend and harvesting needs, meeting the harvesting assistance needs of trees with different growth angles, and has strong adaptability.

[0022] Example 4: The right support plate 222 of this utility model is connected to the outside of the lower bearing 23. The lower bearing 23 is connected to the inside of the rotating rod 24. The rotating rod 24 has a plug rod 25. The fixed support rod 03 has a plug hole 26. The plug rod 25 is adapted to the plug hole 26 and passes through the plug hole 26. The plug rod 25 has a brake rod 27. The brake rod 27 passes through the right support plate 222 and the mounting sleeve 28 in sequence.

[0023] Example 5: The mounting sleeve 28 of this utility model is connected to a threaded rod 32 by a threaded connection. The threaded rod 32 passes through the mounting sleeve 28, and the outer end of the threaded rod 32 is connected to a knob 31. The inner end of the threaded rod 32 has a locking block 29. The brake rod 27 has multiple locking grooves 30. The locking block 29 is adapted to the locking grooves 30 and the locking block 29 is connected to the locking grooves 30. This device ensures the safety of tree felling operations by limiting the direction of tree fall. It can also flexibly adjust the support height and angle of the support rod according to the actual felling needs such as the tree growth angle. It has strong adaptability, convenient control and adjustment, and is convenient to carry in the field.

[0024] Example 6: Installation steps: First, assemble the support structure. Place the worm 11 into the placement groove 18, then embed the shaft 15 into the outer bearing 14 and fix it to the worm 11. The inner surfaces of the crank handle 16 and the baffle 17 should be in contact with the outer surface of the fixed support 03. Next, place the rotating sleeve 09 into the placement groove 18, and align and connect the worm wheel 10 with the worm 11. Then, pass the positioning support rod 06 through the fixed support 03 and the rotating sleeve 09 in sequence until the protrusion 07 is embedded in the inner bearing 08 and the driving protrusion 12 is embedded in the driving groove 13. Finally, fix the sealing plate 19 to the fixed support 03 with screws, and ensure that the sealing plate 19 is aligned with the opening of the placement groove 18. After sealing the block, the movable support rod 02 is placed into the slide rail 04 and fitted onto the outside of the positioning support rod 06. The movable support rod 02 is connected to the positioning support rod 06 by threads. After assembling the support rod structure, the fixed base plate 20 structure is assembled. First, the fixed base plate 20 is placed under the fixed support rod 03, and the inner surface of the support plate 22 is in contact with the outer surface of the fixed support rod 03. Then, the rotating rod 24 is embedded in the lower bearing 23, and the insert rod 25 passes through the insert hole 26. The brake rod 27 passes through the mounting sleeve 28, and the locking block 29 corresponds to the locking groove 30. Finally, the locking block 29 is moved into the locking groove 30 by rotating the knob 31 to complete the installation.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tree harvesting auxiliary device, characterized in that: The device includes a movable support rod (02) and a fixed support rod (03). The fixed support rod (03) has a placement groove (18) that is adapted to a rotating sleeve (09). The placement groove (18) is connected to the rotating sleeve (09). The rotating sleeve (09) has a worm wheel (10) on its outside. The worm wheel (10) is adapted to a worm (11) and is connected to the worm (11). The worm (11) is connected to a shaft (15). The shaft (15) is connected to the inside of an outer bearing (14). The fixed support rod (03) is connected to the outside of the outer bearing (14). The shaft (15) is divided into a drive shaft (151) and a support shaft (152). The drive shaft (151) The outer end has a rocker arm (16), which fits against the fixed support rod (03). The outer end of the support shaft rod (152) has a baffle (17), which fits against the fixed support rod (03). The fixed support rod (03) is connected to the sealing plate (19) by screws. The rotating sleeve (09) is internally connected to a positioning support rod (06). The positioning support rod (06) passes through the fixed support rod (03) and the rotating sleeve (09) in sequence. The rotating sleeve (09) has multiple driving protrusions (12), and the positioning support rod (06) has multiple driving grooves (13). The driving protrusions (12) are adapted to the driving grooves (13), and the driving protrusions (12) are connected to the driving grooves (13).

2. The tree harvesting auxiliary device according to claim 1, characterized in that: The positioning support rod (06) has a protruding rod (07) at its inner end. The protruding rod (07) is connected to the inside of the inner bearing (08). The inner bearing (08) is connected to the outside of the fixed support rod (03). The fixed support rod (03) is connected to the outside of the handle (05). The fixed support rod (03) has a slide rail (04) inside. The slide rail (04) is adapted to the movable support rod (02). The movable support rod (02) is connected to the slide rail (04). The movable support rod (02) slides in the slide rail (04). The movable support rod (02) has a top block (01) at its outer end. The positioning support rod (06) is connected to the inside of the movable support rod (02) by a thread.

3. The tree harvesting auxiliary device according to claim 2, characterized in that: The lower end of the fixed support rod (03) is connected to the support plate (22). The lower part of the support plate (22) has a fixed base plate (20). The fixed base plate (20) is connected to the ground. The fixed base plate (20) has multiple spikes (21). The spikes (21) are inserted into the soil. The support plate (22) is divided into a left support plate (221) and a right support plate (222). The left support plate (221) has an installation sleeve (28) on its outside.

4. A tree harvesting auxiliary device according to claim 3, characterized in that: The right support plate (222) is connected to the outside of the lower bearing (23). The lower bearing (23) is connected to the rotating rod (24). The rotating rod (24) has a plug rod (25). The fixed support rod (03) has a plug hole (26). The plug rod (25) is adapted to the plug hole (26). The plug rod (25) passes through the plug hole (26). The plug rod (25) has a brake rod (27). The brake rod (27) passes through the right support plate (222) and the mounting sleeve (28) in sequence.

5. A tree harvesting auxiliary device according to claim 1, characterized in that: The mounting sleeve (28) is connected to the threaded rod (32) by a threaded connection. The threaded rod (32) passes through the mounting sleeve (28). The outer end of the threaded rod (32) is connected to the knob (31). The inner end of the threaded rod (32) has a locking block (29). The brake lever (27) has multiple locking grooves (30). The locking block (29) is adapted to the locking grooves (30). The locking block (29) is connected to the locking grooves (30).

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