Height-adjustable tree trunk fixing electric cutting saw

By introducing adjustment components and limiting structures into the electric hacksaw, the saw height can be quickly adjusted and the trunk can be stably limited, solving the problem that existing equipment cannot be adjusted and improving operational flexibility and cutting accuracy.

CN224196941UActive Publication Date: 2026-05-05HENAN ZHONGXING SEEDLINGS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN ZHONGXING SEEDLINGS CO LTD
Filing Date
2025-04-18
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing electric hacksaw equipment cannot achieve height adjustment, which increases the difficulty of operation, reduces efficiency, and fails to meet diverse operational needs.

Method used

The adjustable components include support rods, slide rails, gears, ratchet wheels, and pawls, which enable rapid adjustment and locking of the sawing height. The trunk is stably limited by a motor-driven transmission plate and a limiting plate.

Benefits of technology

It improves the flexibility and cutting accuracy of the equipment, reduces the difficulty of operation, and enhances work efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric cutting saws, and discloses a height-adjustable tree trunk fixing electric cutting saw which comprises a cutting table and a cutting saw body, an adjusting assembly is arranged on the side wall of the cutting saw body, the adjusting assembly is used for adjusting the height of the cutting saw body and comprises a supporting rod, the supporting rod is fixedly connected to the top of the cutting table, and the supporting rod is fixedly connected to the top of the cutting table. The inner wall of the supporting rod is fixedly connected with a sliding rail, the interior of the sliding rail is slidably connected with a rack, the interior of the supporting rod is rotatably connected with a gear, one side of the cutting table is provided with a limiting assembly, and the limiting assembly is used for limiting a tree trunk. The gear rotates to drive the rack to ascend and descend, the cutting saw is further driven to adjust the height, and therefore the effect of rapidly adjusting the height of the cutting saw is achieved, the problem that traditional equipment cannot rapidly adjust the cutting saw according to the actual use condition is solved, and the flexibility of the equipment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electric sawing technology, and in particular to a height-adjustable electric saw for tree trunk fixing. Background Technology

[0002] With the rapid development of forestry, landscaping and timber processing industries, the demand for tree trunking and pruning operations is increasing. Traditional manual sawing methods are inefficient, labor-intensive and difficult to guarantee cutting accuracy, especially when dealing with tall trees or batch operations. In order to improve work efficiency, reduce labor costs and ensure cutting quality, electric sawing equipment has gradually become the mainstream tool in the industry.

[0003] In existing technologies, many electric sawing devices adopt a fixed structure, and the height and position of the saw blade cannot be adjusted. These devices are usually driven by an electric motor to rotate the saw blade, and the power is transmitted to the saw blade through a mechanical transmission device to achieve the cutting function. Their support is designed to be at a fixed height, and users can only adapt to different cutting needs by moving the device or adjusting the position of the tree. In addition, although some devices are equipped with simple support structures, their height adjustment range is extremely limited and they lack precise positioning functions.

[0004] However, existing fixed electric saws have a significant problem: they cannot be height-adjustable. Because the saw blade height is fixed, users must move the equipment or adjust the tree position to meet the cutting needs when dealing with trees of different sizes. This not only increases the difficulty of operation but also reduces work efficiency. In addition, the fixed height design limits the scope of use of the equipment and cannot meet diverse operational needs. Therefore, a height-adjustable tree trunk-fixing electric saw is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a height-adjustable electric tree trunk cutter, which aims to improve the problem of insufficient equipment flexibility caused by the inability to adjust the height of traditional equipment in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A height-adjustable electric tree trunk cutting saw includes a cutting table and a cutting saw, wherein an adjustment component is provided on the side wall of the cutting saw for adjusting the height of the cutting saw.

[0008] The adjustment assembly includes a support rod fixedly connected to the top of the cutting table. A slide rail is fixedly connected to the inner wall of the support rod, and a rack is slidably connected inside the slide rail. A gear is rotatably connected inside the support rod, and the gear meshes with the rack. A drive shaft is fixedly connected inside the gear, and a rotating disk is fixedly connected to one end of the drive shaft. A ratchet is fixedly connected to the outer wall of the drive shaft. A connecting post is fixedly connected inside the support rod, and a pawl is rotatably connected to the outer wall of the connecting post, meshing with the ratchet. A transmission frame is fixedly connected to one side of the rack, and the transmission frame is fixedly connected to the outer wall of the saw. A limit assembly is provided on one side of the cutting table for limiting the trunk.

[0009] As a further description of the above technical solution:

[0010] The limiting assembly includes a conveyor wheel and a connecting frame. The conveyor wheel is fixedly connected to one side of the cutting table, and the connecting frame is fixedly connected to the bottom of the conveyor wheel.

[0011] As a further description of the above technical solution:

[0012] A motor is fixedly connected inside the connecting frame, and a transmission plate is fixedly connected to the output end of the motor.

[0013] As a further description of the above technical solution:

[0014] A transmission rod is rotatably connected to one side of the transmission plate, and a slider is rotatably connected to one side of the transmission rod.

[0015] As a further description of the above technical solution:

[0016] The slider is slidably connected inside the connecting frame, and the transmission rod is rotatably connected to the other side of the transmission plate.

[0017] As a further description of the above technical solution:

[0018] A slider is rotatably connected to one side of the transmission rod, and the slider is slidably connected inside the connecting frame.

[0019] As a further description of the above technical solution:

[0020] Both slider one and slider two are fixedly connected to the top of a support plate, and a limit plate is fixedly connected to one side of the support plate. The limit plate is made of rubber.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by rotating the rotating disk, the gear rotates inside the support rod. The rotation of the gear drives the rack to rise and fall, further driving the cutter to adjust its height. Locking is achieved through the cooperation of the ratchet and pawl, thereby realizing the effect of quickly adjusting the cutter height. This solves the problem that traditional equipment cannot quickly adjust the cutter according to the actual use situation, and improves the flexibility of the equipment.

[0023] 2. In this utility model, the transmission plate is driven to rotate by a motor, which in turn drives the first transmission rod and the second transmission rod to rotate synchronously in opposite directions. This causes the second slider to slide inside the connecting frame, driving the limiting plate to press synchronously towards the center, thereby achieving the effect of limiting the trunk. This solves the cutting error and safety hazards caused by the trunk moving or rolling during the cutting process, and improves the positioning accuracy and efficiency of batch operations. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a height-adjustable electric tree trunk saw proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the support rod of a height-adjustable electric tree trunk cutter proposed in this utility model.

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the bottom structure of the conveyor wheel of a height-adjustable electric tree trunk cutter proposed in this utility model.

[0028] Legend:

[0029] 1. Cutting table; 2. Cutting saw; 3. Support rod; 4. Slide rail; 5. Gear; 6. Drive shaft; 7. Rotary disk; 8. Ratchet; 9. Pad; 10. Connecting column; 11. Transmission frame; 12. Rack; 13. Conveyor wheel; 14. Connecting frame; 15. Motor; 16. Transmission plate; 17. Transmission rod one; 18. Slider one; 19. Transmission rod two; 20. Slider two; 21. Support plate; 22. Limiting plate. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 - Figure 3 The present invention provides an embodiment of a height-adjustable electric tree trunk cutting saw, comprising a cutting table 1 and a cutting saw 2. The cutting table 1 is used to provide a platform for cutting tree trunks, and the side wall of the cutting saw 2 is provided with an adjustment component for adjusting the height of the cutting saw 2.

[0032] The adjustment assembly includes a support rod 3, which provides stable connection and support. The support rod 3 is fixedly connected to the top of the cutting table 1. A slide rail 4 is fixedly connected to the inner wall of the support rod 3 to provide a stable sliding trajectory and ensure that the rack 12 can slide stably. The rack 12 is slidably connected inside the slide rail 4. A gear 5 is rotatably connected inside the support rod 3 to drive the movement of the rack 12, thereby driving the adjustment assembly to adjust quickly. The gear 5 meshes with the rack 12. A drive shaft 6 is fixedly connected inside the gear 5. A rotating disk 7 is fixedly connected to one end of the drive shaft 6 to facilitate quick drive of the assembly by the user and further transmit power. A ratchet 8 is fixedly connected to the outer wall of the drive shaft 6. A connecting post 10 is fixedly connected inside the support rod 3. A pawl 9 is rotatably connected to the outer wall of the connecting post 10. The pawl 9 meshes with the ratchet 8 to ensure the stability of the assembly after adjustment and to provide self-locking force. A transmission frame 11 is fixedly connected to one side of the rack 12. The transmission frame 11 is fixedly connected to the outer wall of the saw 2. A limit assembly is provided on one side of the cutting table 1 to limit the trunk.

[0033] Specifically, when dealing with trees of different sizes or requiring precise control of the cutting position, the cutting table 1 first provides the operator with a stable operating platform, making the entire cutting process more stable. The trunk can be precisely cut using the cutter saw 2. When dealing with trunks of different sizes, the operator can adjust the height using the rotating disc 7. The rotating disc 7 drives the gear 5 to rotate synchronously. The rotation of the gear 5, through transmission, causes the meshing rack 12 to slide along the slide rail 4, thereby driving the transmission frame 11 to rise and fall vertically. The rising and falling of the transmission frame 11 can quickly adjust the cutting height of the cutter saw 2, ensuring that it can adapt to different trunk sizes. When the required cutting height is adjusted, the cooperation of the ratchet 8 and the pawl 9 can effectively lock the transmission frame 11, preventing it from moving accidentally during the cutting process and ensuring stability during the cutting process. At the same time, the conveyor wheel 13 can help the operator transport the trunk to the cutting position with less effort, improving work efficiency.

[0034] Reference Figure 4The limiting component includes a conveyor wheel 13 and a connecting frame 14. The conveyor wheel 13 is fixedly connected to one side of the cutting table 1 to assist the user in quickly conveying the tree trunk to the cutting area. The connecting frame 14 is fixedly connected to the bottom of the conveyor wheel 13 to provide a stable connection and support, ensuring the stable movement of the component. A motor 15 is fixedly connected inside the connecting frame 14 to provide necessary power support for the component. A transmission plate 16 is fixedly connected to the output end of the motor 15 to further transmit the power of the motor 15 downwards. A transmission rod 17 is rotatably connected to one side of the transmission plate 16, and a slider 18 is rotatably connected to one side of the transmission rod 17.

[0035] Specifically, when precise cutting of the tree trunk is required or to prevent unnecessary movement of the tree trunk during the cutting process, the operator can control the motor 15 to drive the transmission plate 16 to rotate through the output end of the motor 15. The rotation of the transmission plate 16 further drives the synchronous reverse deflection of the transmission rod 17 and the transmission rod 19, thereby ensuring the smooth transmission of force and avoiding inaccurate cutting caused by vibration or uneven force.

[0036] Reference Figure 4 Slider 18 is slidably connected inside the connecting frame 14 to ensure the stability of the component's movement. The connecting frame 14 provides a stable movement trajectory for slider 18. A transmission rod 19 is rotatably connected to the other side of the transmission plate 16. A slider 20 is rotatably connected to one side of the transmission rod 19. Slider 20 is slidably connected inside the connecting frame 14, thereby ensuring the consistency of the component's movement and enabling the component to quickly be positioned with the tree trunk. A support plate 21 is fixedly connected to the top of both slider 18 and slider 20. A limit plate 22 is fixedly connected to one side of the support plate 21. The limit plate 22 is made of rubber and is used to contact the tree trunk to limit and fix the tree trunk, preventing unnecessary displacement during the cutting process.

[0037] Specifically, further, through the cooperation of transmission rod 17 and transmission rod 29, slider 18 and slider 20 slide synchronously inside the connecting frame 14, pushing support plate 21 and limiting plate 22 to squeeze towards the middle, generating clamping force. While limiting plate 22 is in contact with the tree trunk surface, by generating uniform clamping force, it ensures that the tree trunk remains stable during the cutting process and does not undergo unnecessary displacement or deviation, thereby improving the accuracy and efficiency of cutting.

[0038] Working Principle: When using this equipment, the cutting table 1 provides an operating platform for the operator. The saw 2 cuts the tree trunk. When cutting different tree trunk sizes, the operator rotates the rotating disk 7, which causes the gear 5 to rotate synchronously. The rotation of the gear 5 causes the meshing rack 12 to slide inside the slide rail 4, thereby driving the transmission frame 11 to rise and fall synchronously. The movement of the transmission frame 11 further drives the saw 2 to adjust its height. When the appropriate height is reached, the ratchet 8 and pawl 9 work together to lock the saw 2, ensuring its stability after adjustment. During the cutting process, the conveyor wheel 13 can assist... The operator quickly and effortlessly transports the tree trunk to the cutting position. After the tree trunk reaches the cutting position, the transmission plate 16 is driven to rotate by the output end of the motor 15. When the transmission plate 16 rotates, it will further cause the transmission rod 17 and the transmission rod 29 to deflect synchronously in opposite directions, thereby ensuring stable force transmission. The deflection of the transmission rod 17 and the transmission rod 29 will cause the slider 18 and the slider 20 to slide synchronously inside the connecting frame 14, thereby further driving the support plate 21 and the limiting plate 22 to press towards the middle. The limiting plate 22 contacts the surface of the tree trunk, thereby generating a clamping force to ensure that the tree trunk will not undergo unnecessary displacement during the cutting process.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A height-adjustable electric tree trunk trimmer, comprising a cutting table (1) and a trimmer (2), characterized in that: The sidewall of the saw (2) is provided with an adjustment component, which is used to adjust the height of the saw (2); The adjustment assembly includes a support rod (3), which is fixedly connected to the top of the cutting table (1). A slide rail (4) is fixedly connected to the inner wall of the support rod (3). A rack (12) is slidably connected inside the slide rail (4). A gear (5) is rotatably connected inside the support rod (3). The gear (5) meshes with the rack (12). A drive shaft (6) is fixedly connected inside the gear (5). A rotating disk (7) is fixedly connected to one end of the drive shaft (6). A ratchet (8) is fixedly connected to the outer wall of the drive shaft (6), a connecting column (10) is fixedly connected inside the support rod (3), a pawl (9) is rotatably connected to the outer wall of the connecting column (10), the pawl (9) meshes with the ratchet (8), a transmission frame (11) is fixedly connected to one side of the rack (12), the transmission frame (11) is fixedly connected to the outer wall of the cutter (2), and a limit component is provided on one side of the cutting table (1), the limit component is used to limit the trunk.

2. The height-adjustable electric tree trunk trimmer according to claim 1, characterized in that: The limiting assembly includes a conveyor wheel (13) and a connecting frame (14). The conveyor wheel (13) is fixedly connected to one side of the cutting table (1), and the connecting frame (14) is fixedly connected to the bottom of the conveyor wheel (13).

3. The height-adjustable electric tree trunk trimmer according to claim 2, characterized in that: A motor (15) is fixedly connected inside the connecting frame (14), and a transmission plate (16) is fixedly connected to the output end of the motor (15).

4. The height-adjustable electric tree trunk trimmer according to claim 3, characterized in that: A transmission rod (17) is rotatably connected to one side of the transmission plate (16), and a slider (18) is rotatably connected to one side of the transmission rod (17).

5. A height-adjustable electric tree trunk trimmer according to claim 4, characterized in that: The slider one (18) is slidably connected inside the connecting frame (14), and the transmission rod two (19) is rotatably connected to the other side of the transmission plate (16).

6. A height-adjustable electric tree trunk trimmer according to claim 5, characterized in that: The transmission rod (19) is rotatably connected to a slider (20) on one side, and the slider (20) is slidably connected inside the connecting frame (14).

7. A height-adjustable electric tree trunk trimmer according to claim 6, characterized in that: Both slider one (18) and slider two (20) are fixedly connected to a support plate (21) at the top. A limit plate (22) is fixedly connected to one side of the support plate (21). The limit plate (22) is made of rubber.