High branch pruning device

Abstract

The utility model discloses a high branch pruning device which comprises a transmission shell, two ends of the transmission shell are connected with a mobile power supply and a high branch pipe, a controller board and an integrated linear reciprocating structure are arranged in the transmission shell, and a control switch is arranged on the side portion of the transmission shell. The high branch pipe is connected with the telescopic switch through the switch connecting shell, the end of the high branch pipe is provided with the fixed tool bit through the fixed tool bit connecting shell, and the integrated linear reciprocating structure drives the movable tool bit and the fixed tool bit to conduct matched shearing through the first-stage transmission shaft, the telescopic switch and the second-stage transmission shaft. The integrated linear back-and-forth structure is composed of a motor, a planetary reduction gearbox, a rotary pressing piece and the like, and rotary motion is efficiently converted into linear back-and-forth motion. The device solves the problems that traditional manual high-branch shears are labor-consuming and low in efficiency, and existing electric high-branch shears are complex in transmission and high in cost, has the advantages of being simple in structure, efficient in transmission, comfortable to operate and controllable in cost, and is suitable for garden pruning work.

Description

Technical Field

[0001] This utility model relates to the field of garden tool technology, specifically to a high branch shearing device. Background Technology

[0002] In urban greening, landscape maintenance, and forestry management, pruning high-branch trees is a common and important task. Traditional high-branch shears are mostly operated manually, using levers to achieve the cutting action. However, these manual high-branch shears have many limitations: on the one hand, pruning thicker or more resilient branches requires the user to exert considerable force repeatedly, which can easily lead to fatigue in the hands and shoulders, and may even cause muscle strain; on the other hand, manual operation is inefficient and cannot meet the needs of large-scale garden pruning. With the rapid development of the landscaping industry, higher demands have been placed on the automation and efficiency of high-branch shears, leading to the development of electric high-branch shears.

[0003] While existing electric pruning shears have solved the problem of laborious manual operation, their transmission structure design still has shortcomings. Some electric pruning shears employ complex transmission methods such as multi-stage gear transmission and linkage mechanisms. This structure not only increases the number of parts and assembly difficulty, leading to higher production costs, but also reduces power transmission efficiency during operation due to friction and energy loss between transmission components, affecting the pruning effect. Furthermore, the complex transmission structure increases the equipment's failure rate; if a component malfunctions, repairs are difficult and costly. At the same time, existing electric pruning shears also lack ergonomic design, with an unreasonable overall weight distribution and poor grip comfort, which can burden operators during prolonged use and hinder work efficiency. Therefore, developing a pruning shear device that is simple in structure, highly efficient in transmission, comfortable to operate, and cost-effective is of great significance for promoting the development of garden pruning tools. Utility Model Content

[0004] The purpose of this utility model is to provide a high-branch pruning device that integrates components such as a mobile power supply, controller board, motor, planetary gearbox, and linear reciprocating gear into a transmission housing, thereby solving the problems of dispersed structure, inconvenient operation, and poor stability of existing high-branch pruning devices and improving the practicality and work efficiency of high-branch pruning devices.

[0005] To achieve the above objectives, the present invention employs the following technical means:

[0006] A high-branch pruning device includes a transmission housing, with a mobile power supply and a high-branch tube connected to its two ends respectively. A controller board and an integrated linear reciprocating structure are connected inside the transmission housing. A control switch is connected to the side of the transmission housing. The mobile power supply, the integrated linear reciprocating structure, and the control switch are all connected to the controller board. A telescopic switch is connected to the high-branch tube via a switch connecting shell. A fixed blade head is connected to the end of the high-branch tube away from the transmission housing via a fixed blade head connecting shell. A primary transmission shaft is connected to the transmission end of the integrated linear reciprocating structure and is disposed within the high-branch tube. The primary transmission shaft is connected to a secondary transmission shaft disposed within the high-branch tube via the telescopic switch. The secondary transmission shaft is connected to a movable blade head disposed outside the high-branch tube and rotatably connected to the fixed blade head via a connecting rod.

[0007] The integrated linear reciprocating structure includes a motor connected to the controller board, the motor being connected to a lower rotating plate via a planetary gearbox, the lower rotating plate being connected to an upper rotating plate via multiple sets of rotating pins, and the upper rotating plate being connected to a transmission pin connected to a primary transmission shaft.

[0008] A further embodiment of this invention is that the outer wall of the transmission housing has multiple sets of evenly distributed inner grooves.

[0009] A further embodiment of this invention is that the transmission housing is made of plastic.

[0010] A further embodiment of this invention is that the controller board is an STM32F103 series microcontroller control board.

[0011] A further aspect of this invention is that the motor is a brushless motor.

[0012] A further embodiment of this invention is that the planetary gearbox is a three-stage planetary gearbox.

[0013] A further embodiment of this invention is that a transmission sensor is connected at the connection between the transmission pin and the primary transmission shaft, and the transmission sensor is electrically connected to the controller board.

[0014] A further embodiment of this invention is that the control switch is connected to the controller board via an electronic control board, and the electronic control board is a signal conditioning type electronic control board.

[0015] A further embodiment of this invention is that the high-branch pipe is an aluminum alloy product.

[0016] A further embodiment of this invention is that the telescopic switch includes a locking switch connected to a primary drive shaft, and the locking switch is connected to a locking plate connected to a secondary drive shaft. When the primary drive shaft moves forward or backward, it drives the locking switch to press against the locking plate, and the locking plate locks the secondary drive shaft, causing the secondary drive shaft to move forward or backward.

[0017] The beneficial effects of this utility model are:

[0018] 1. Simple and efficient transmission structure: The integrated linear reciprocating structure efficiently converts the rotational motion of the motor into the linear reciprocating motion of the transmission pin through the cooperation of components such as the motor, planetary gearbox, rotary pressure plate, rotary pin, upper rotary plate, and transmission pin. This simple and compact structure reduces the number of transmission components, lowers equipment costs and maintenance difficulty, while improving power transmission efficiency and ensuring the cutting effect and working efficiency of the high-branch shears.

[0019] 2. Ergonomically designed: The recessed design on the outer wall of the transmission housing increases friction for the user's grip, improving comfort and stability. The transmission housing is made of lightweight plastic, making it easy for users to operate. The high-branch tube is made of aluminum alloy, which is high-strength, lightweight, and corrosion-resistant. The overall weight distribution of the device is more reasonable and ergonomic, reducing the burden on operators during prolonged use and improving work efficiency.

[0020] 3. Stable and Reliable Operation: The controller board uses an STM32F103 series microcontroller, ensuring stable performance and precise control, reliably managing the operation of the high-branch pruning device. The motor is a brushless motor, offering advantages such as long lifespan, easy maintenance, and high efficiency. The planetary gearbox is a three-stage planetary gearbox, achieving a large reduction ratio and torque output to meet the power requirements of the high-branch pruning shears. A transmission sensor is connected to the connection between the transmission pin and the primary drive shaft, enabling real-time monitoring of the transmission status between the transmission pin and the primary drive shaft and feeding the signal back to the controller board for timely adjustments to the device's operating status, ensuring the stability and reliability of the device's operation.

[0021] 4. Precise signal transmission: The control switch is connected to the controller board through the electronic control board. The electronic control board is a signal conditioning type electronic control board, which can condition the signal transmitted by the control switch to ensure that the controller board accurately receives the signal, making the control of the device more precise. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the present invention;

[0024] Figure 3This is a schematic diagram of the integrated linear reciprocating structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the telescopic switch of this utility model;

[0026] Figure label:

[0027] 1. Power bank; 2. Transmission housing; 3. Inner groove; 4. Controller board; 5. Integrated linear reciprocating structure; 6. Transmission sensor; 7. Control switch; 8. Electrical control board; 9. High-branch tube; 10. Primary transmission shaft; 11. Secondary transmission shaft; 12. Telescopic switch; 13. Switch connecting housing; 14. Fixed cutter head connecting housing; 15. Fixed cutter head; 16. Movable cutter head; 501. Motor; 502. Planetary gearbox; 503. Lower rotating pressure plate; 504. Rotating pin; 505. Upper rotating plate; 506. Transmission pin; 121. Locking switch; 122. Locking pressure plate. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Example 1

[0030] like Figures 1 to 3 As shown, a high branch pruning device includes a transmission housing 2. A mobile power supply 1 and a high branch tube 9 are respectively connected to both ends of the transmission housing 2. A controller board 4 and an integrated linear reciprocating structure 5 are connected inside the transmission housing 2. A control switch 7 is connected to the side of the transmission housing 2. The mobile power supply 1, the integrated linear reciprocating structure 5, and the control switch 7 are respectively connected to the controller board 4. A telescopic switch 12 is connected to the high branch tube 9 through a switch connecting shell 13. A fixed cutter head 15 is connected to the end of the high branch tube 9 away from the transmission housing 2 through a fixed cutter head connecting shell 14. A primary transmission shaft 10 is connected to the transmission end of the integrated linear reciprocating structure 5 and is disposed inside the high branch tube 9. The primary transmission shaft 10 is connected to a secondary transmission shaft 11 disposed inside the high branch tube 9 through the telescopic switch 12. The secondary transmission shaft 11 is connected to a movable cutter head 16 disposed outside the high branch tube 9 and rotatably connected to the fixed cutter head 15 through a connecting rod.

[0031] The integrated linear reciprocating structure 5 includes a motor 501 connected to the controller board 4. The motor 501 is connected to a lower rotating plate 503 via a planetary gearbox 502. The lower rotating plate 503 is connected to an upper rotating plate 505 via multiple sets of rotating pins 504. The upper rotating plate 505 is connected to a transmission pin 506 connected to the primary drive shaft 10.

[0032] Working principle:

[0033] Power supply and signal transmission: When the high-branch pruning device starts working, the mobile power supply 1 supplies power to the entire system. The user operates the control switch 7 on the side of the transmission housing 2, and the control switch 7 transmits a signal to the controller board 4 inside the transmission housing 2. After receiving the signal, the controller board 4 controls the motor 501 to start.

[0034] Power transmission and torque reduction / increase: After the motor 501 starts working, the output power is transmitted to the planetary gearbox 502. The planetary gearbox 502 reduces the high-speed rotation of the motor 501, thereby reducing the speed and increasing the torque. The reduced power is output from the planetary gearbox 502, driving the lower rotating pressure plate 503.

[0035] Linear reciprocating motion conversion: The lower rotating pressure plate 503 drives multiple sets of rotating pins 504, which in turn drive the upper rotating plate 505. The upper rotating plate 505, through a T-shaped spiral relationship with the transmission pin 506, drives the transmission pin 506 to perform linear reciprocating motion. The transmission pin 506 is connected to the primary transmission shaft 10 located inside the high-branch tube 9, thereby driving the primary transmission shaft 10 to perform linear motion in the forward and backward directions.

[0036] Secondary transmission and shearing action: The primary transmission shaft 10 transmits motion to the secondary transmission shaft 11 via the telescopic switch 12 connected to the switch connecting housing 13 on the high branch pipe 9, causing the secondary transmission shaft 11 to move. The secondary transmission shaft 11 is connected to a movable cutter head 16 located outside the high branch pipe 9 via a connecting rod. The movable cutter head 16 and the fixed cutter head 15, connected to the end of the high branch pipe 9 away from the transmission housing 2, are rotatably connected via a fixed cutter head connecting housing 14. As the secondary transmission shaft 11 moves, it drives the movable cutter head 16 to move. The movable cutter head 16 and the fixed cutter head 15 cooperate to complete the shearing action of the branches.

[0037] Example 2

[0038] like Figures 1 to 3As shown, a high branch pruning device includes a transmission housing 2. A mobile power supply 1 and a high branch tube 9 are respectively connected to both ends of the transmission housing 2. A controller board 4 and an integrated linear reciprocating structure 5 are connected inside the transmission housing 2. A control switch 7 is connected to the side of the transmission housing 2. The mobile power supply 1, the integrated linear reciprocating structure 5, and the control switch 7 are respectively connected to the controller board 4. A telescopic switch 12 is connected to the high branch tube 9 through a switch connecting shell 13. A fixed cutter head 15 is connected to the end of the high branch tube 9 away from the transmission housing 2 through a fixed cutter head connecting shell 14. A primary transmission shaft 10 is connected to the transmission end of the integrated linear reciprocating structure 5 and is disposed inside the high branch tube 9. The primary transmission shaft 10 is connected to a secondary transmission shaft 11 disposed inside the high branch tube 9 through the telescopic switch 12. The secondary transmission shaft 11 is connected to a movable cutter head 16 disposed outside the high branch tube 9 and rotatably connected to the fixed cutter head 15 through a connecting rod.

[0039] The integrated linear reciprocating structure 5 includes a motor 501 connected to the controller board 4. The motor 501 is connected to a lower rotating plate 503 via a planetary gearbox 502. The lower rotating plate 503 is connected to an upper rotating plate 505 via multiple sets of rotating pins 504. The upper rotating plate 505 is connected to a transmission pin 506 connected to the primary drive shaft 10.

[0040] Multiple sets of evenly distributed inner grooves 3 are provided on the outer side wall of the transmission housing 2.

[0041] The advantages of the above settings are:

[0042] Enhanced grip and safety: Multiple evenly distributed grooves 3 conform to ergonomic design, fitting the contours of the operator's hand and reducing fatigue from prolonged gripping. Simultaneously, the grooves 3 alter the surface morphology of the transmission housing 2, increasing friction with the hand, effectively preventing the high-pole shears from slipping from the hand even with sweaty hands or in a damp environment, ensuring operational safety.

[0043] Achieving lightweight design: The recessed groove 3 on the outer wall of the transmission housing 2 reduces material usage while ensuring the structural strength of the housing. This reduces the weight of the entire high-branch pruning device, alleviating the burden on operators, and significantly improving operational flexibility and convenience, especially during high-altitude or long-term pruning operations.

[0044] The transmission housing 2 is made of plastic.

[0045] The advantages of the above settings are:

[0046] Reduced device weight: Plastic materials generally have a lower density than metals, making the transmission housing of plastic products lighter than metal housings. This reduces the overall weight of the high-pruning shearing device, making it easier for operators to hold during high-altitude pruning operations, reducing fatigue, extending continuous working time, and improving work efficiency.

[0047] Excellent insulation performance: Plastic is an insulator. Using plastic products as the transmission housing 2 effectively isolates live components such as the internal mobile power source 1, controller board 4, and integrated linear reciprocating structure 5, preventing accidental electric shock to operators and improving the safety of using the high-branch pruning device. Even when operating in humid environments, it provides reliable insulation protection for users.

[0048] Excellent corrosion resistance: The transmission housing 2 made of plastic is not easily chemically reacted with moisture and oxygen in the air. Compared with metal housings, it will not rust or corrode, and can be used for a long time in various complex outdoor environments. This reduces the maintenance and replacement costs caused by housing corrosion and damage, and extends the service life of the high-branch pruning device.

[0049] Controller board 4 is an STM32F103 series microcontroller control board.

[0050] The advantages of the above settings are:

[0051] High performance: This series of microcontrollers is based on the ARM Cortex-M3 core, which has high processing power and running speed. It can quickly process signals from input devices such as control switch 7, and issue precise control commands to the integrated linear reciprocating structure 5 in a timely manner, ensuring the rapid response and accurate operation of the high-branch pruning device.

[0052] Abundant peripheral interfaces: It has a variety of communication interfaces, such as SPI, I2C, USART, etc., which can facilitate communication and data transmission with other devices.

[0053] Low power consumption: The design incorporates various low-power technologies, such as support for multiple low-power modes, including sleep mode, stop mode, and standby mode. When the high-branch pruning device is not working or is idle, it can enter the corresponding low-power mode, effectively reducing power consumption, extending the usage time of the power bank 1, and improving the device's battery life.

[0054] Motor 501 is a brushless motor.

[0055] The advantages of the above settings are:

[0056] High efficiency and energy saving

[0057] Brushless motors lack the brushes and commutator of traditional brushed motors, eliminating frictional losses between the brushes and commutator, resulting in an energy conversion efficiency of up to 80%-90%. This means that under the same power output, brushless motors consume less energy, effectively extending the battery life of the power bank and reducing the inconvenience of frequent charging, making them especially suitable for long-term outdoor operations.

[0058] Long lifespan and low maintenance cost

[0059] Brushless motors eliminate the need for easily damaged brushes and commutators, reducing mechanical wear and sparking, and significantly lowering the failure rate. Compared to the typical 1,000-3,000 hours of brushed motor lifespan, brushless motors can reach over 10,000 hours, greatly extending the lifespan of high-branch pruning devices and reducing maintenance and replacement costs.

[0060] High speed and high torque output

[0061] The brushless motor controls the current direction via an electronic commutator, enabling higher speeds and more precise torque output. In high-branch pruning applications, it can quickly drive the planetary gearbox 502, providing powerful performance for the pruning action, easily handling the pruning needs of branches of varying thicknesses, and improving work efficiency.

[0062] Precise control and speed regulation performance

[0063] The brushless motor can achieve precise speed and torque control via controller board 4. Combined with the high-performance processing capabilities of the STM32F103 series microcontroller, it can automatically adjust the motor output power according to the thickness of the branches, achieving intelligent shearing. Furthermore, the brushless motor has a wider speed range, providing the most suitable shearing speed for different working scenarios.

[0064] Low noise, low vibration

[0065] Because brushless motors lack the mechanical contact of brushes, noise and vibration are significantly reduced during operation. This not only improves the operator's experience and reduces fatigue during long hours of work, but also makes them suitable for noise-sensitive environments.

[0066] Good heat dissipation performance

[0067] The stator windings of a brushless motor are in direct contact with the housing, resulting in a short heat conduction path and high heat dissipation efficiency. During prolonged continuous operation, this effectively controls motor temperature, preventing performance degradation and shortened lifespan due to overheating, and ensuring the stability and reliability of the high-branch pruning device.

[0068] Small size and light weight

[0069] At the same power, brushless motors are smaller and lighter than brushed motors, which helps to further reduce the overall weight of high-pole pruning devices, improve operational flexibility and comfort, and are especially suitable for high-altitude operations.

[0070] Environmental protection and safety

[0071] Brushless motors do not generate electrical sparks during operation, reducing the risk of fire and making them suitable for flammable and explosive environments. Furthermore, their low electromagnetic interference characteristics meet the environmental protection requirements of modern electronic equipment.

[0072] Planetary gearbox 502 is a three-stage planetary gearbox.

[0073] The advantages of the above settings are:

[0074] A perfect combination of transmission ratio and compact structure

[0075] The three-stage planetary gearbox, with its three-stage gear sets connected in series, achieves a large overall transmission ratio, meeting the high-speed rotation requirements of the pruner from motor 501 to the low-speed, high-torque operation of the cutter head. Simultaneously, the coaxial design of the planetary gear system results in a short axial dimension and a small radial dimension. Compared to multi-stage cylindrical gear reducers, it reduces the volume by 30%-50% at the same transmission ratio, effectively saving space within the transmission housing 2 and meeting the compact structural requirements of the pruner device.

[0076] High torque transmission and load distribution

[0077] In a planetary gearbox, multiple planetary gears mesh simultaneously, distributing the load across multiple gears and significantly increasing load-bearing capacity. The three-stage structure further disperses the load, reducing the stress on each gear and enabling it to withstand greater shear forces. This ensures the reliability of the transmission system when pruning thick branches and extends the gearbox's service life.

[0078] High-efficiency power transmission

[0079] The symmetrical layout of the planetary gear system balances the inertial forces, achieving a transmission efficiency of over 95%. The three-stage planetary structure maintains high transmission efficiency while achieving a large transmission ratio, reducing energy loss and fully utilizing the high efficiency of motor 501 to improve the overall energy efficiency ratio of the high-branch pruning device.

[0080] Smooth operation and low noise

[0081] The multi-tooth meshing characteristic makes the planetary gearbox transmission smoother, significantly reducing vibration and noise levels. Meanwhile, the three-stage reduction design optimizes gear parameters at each stage, further reducing vibration and noise, improving the operator's experience, and making it particularly suitable for noise-sensitive working environments.

[0082] Precise control and response speed

[0083] The three-stage planetary gearbox has a small hysteresis, typically between 1 and 3 arc minutes, enabling precise transmission of the control signal from motor 501 and accurate control of the cutter head's movement. Combined with the high-precision control algorithm of the STM32F103 series microcontroller control board 4, it can quickly respond to operator commands, improving cutting efficiency and accuracy.

[0084] Axial force balance and reliability

[0085] The structural characteristics of planetary gear systems enable them to automatically balance axial forces, reduce bearing load, and extend bearing life. Furthermore, the gear sets in a three-stage planetary reducer can be modularly designed, facilitating assembly and maintenance and reducing subsequent maintenance costs.

[0086] Adaptable to high speed input

[0087] Motor 501 typically has a high output speed. The high-speed gear of the three-stage planetary gearbox is specially designed to adapt to high speed input, avoiding problems such as poor lubrication and accelerated wear caused by excessive speed, and ensuring stable operation at high speed.

[0088] Optimize overall weight distribution

[0089] The compact structure and lightweight design make the planetary gearbox 502 relatively light in weight, and its center of gravity is close to the center of the transmission housing 2, which helps to optimize the overall weight distribution of the high-branch pruning device, reduce the burden on operators, and improve the comfort of long-term operation.

[0090] Example 3

[0091] like Figures 1 to 3 As shown, a high branch pruning device includes a transmission housing 2. A mobile power supply 1 and a high branch tube 9 are respectively connected to both ends of the transmission housing 2. A controller board 4 and an integrated linear reciprocating structure 5 are connected inside the transmission housing 2. A control switch 7 is connected to the side of the transmission housing 2. The mobile power supply 1, the integrated linear reciprocating structure 5, and the control switch 7 are respectively connected to the controller board 4. A telescopic switch 12 is connected to the high branch tube 9 through a switch connecting shell 13. A fixed cutter head 15 is connected to the end of the high branch tube 9 away from the transmission housing 2 through a fixed cutter head connecting shell 14. A primary transmission shaft 10 is connected to the transmission end of the integrated linear reciprocating structure 5 and is disposed inside the high branch tube 9. The primary transmission shaft 10 is connected to a secondary transmission shaft 11 disposed inside the high branch tube 9 through the telescopic switch 12. The secondary transmission shaft 11 is connected to a movable cutter head 16 disposed outside the high branch tube 9 and rotatably connected to the fixed cutter head 15 through a connecting rod.

[0092] The integrated linear reciprocating structure 5 includes a motor 501 connected to the controller board 4. The motor 501 is connected to a lower rotating plate 503 via a planetary gearbox 502. The lower rotating plate 503 is connected to an upper rotating plate 505 via multiple sets of rotating pins 504. The upper rotating plate 505 is connected to a transmission pin 506 connected to the primary drive shaft 10.

[0093] A transmission sensor 6 is connected to the connection between the transmission pin 506 and the primary transmission shaft 10, and the transmission sensor 6 is electrically connected to the controller board 4.

[0094] The advantages of the above settings are:

[0095] Precise control of cutting size: The transmission sensor 6 can accurately monitor the forward and backward movement distance of the primary drive shaft 10, thereby precisely controlling the cutting size of the movable cutter head 16. Whether pruning small tender branches or thicker branches, the cutting force and amplitude can be accurately adjusted according to actual needs to ensure that the pruning effect meets expectations, thus improving the precision and quality of pruning.

[0096] Improved operational safety: By precisely controlling the cutting size of the movable blade 16, accidents caused by excessive cutting force or cutting range can be avoided, such as branches breaking and flying, excessive wear of the blade, etc., reducing the risk of injury to operators and ensuring the safety of the operation process.

[0097] Enhanced equipment adaptability: Different branches require different cutting force and amplitude. The transmission sensor 6 allows the high-branch shears to be flexibly adjusted according to the actual situation. Whether in orchards, gardens, or other scenarios requiring fine pruning, or in roadside greening and other scenarios where pruning efficiency is a certain requirement, the controller board 4 can make corresponding settings based on the feedback from the transmission sensor 6, improving the equipment's adaptability to different working scenarios and pruning tasks.

[0098] Intelligent control is achieved through the electrical connection between the transmission sensor 6 and the controller board 4, which provides the foundation for intelligent control of the high-branch pruning device. The controller board 4 can automatically adjust the movement of the primary transmission shaft 10 based on preset parameters and actual pruning conditions, eliminating the need for frequent manual adjustments by operators, thus improving the automation level of the equipment and reducing the labor intensity of operators.

[0099] The control switch 7 is connected to the controller board 4 via the electronic control board 8, which is a signal conditioning type electronic control board.

[0100] The advantages of the above settings are:

[0101] Signal optimization: The signal conditioning control board can amplify, filter, and shape the signal emitted by control switch 7, converting it into a standard signal more suitable for the controller board 4 to receive and process. This helps improve signal quality and stability, reduces interference and distortion during signal transmission, and ensures that the controller board 4 can accurately receive the commands from control switch 7, thereby achieving precise control of the high-branch pruning equipment.

[0102] Enhanced anti-interference capability: In real-world environments, high-pole shears may be subject to various electromagnetic interferences, such as electromagnetic waves generated by surrounding electrical equipment and electromagnetic noise generated by motor operation. Signal conditioning control boards can effectively suppress these interference signals through filtering and other functions, improving the system's anti-interference capability and ensuring reliable transmission of control signals even in harsh electromagnetic environments. This makes equipment operation more stable and reliable, reducing the possibility of misoperation.

[0103] High-branch pipe 9 is made of aluminum alloy.

[0104] The advantages of the above settings are:

[0105] Lightweight: The density of aluminum alloy is much lower than that of metals such as steel, which significantly reduces the weight of the high-branch pruning tube. During high-branch pruning operations, operators need to hold the tube for extended periods. The lighter weight effectively reduces the operator's workload, improves work efficiency, and minimizes fatigue and injury risks caused by prolonged lifting of heavy objects.

[0106] High strength: After proper alloying and heat treatment, aluminum alloy has high strength, which can withstand various stresses generated during the pruning process of high-branch shears, including shearing force, torsion and bending force, ensuring that the high-branch tube will not be easily deformed or damaged during use, thus guaranteeing the normal operation and service life of the high-branch shears.

[0107] Corrosion resistance: A dense oxide film easily forms on the surface of aluminum alloys. This oxide film prevents the internal metal from contacting the outside air, moisture, and other corrosive substances, providing excellent corrosion resistance. In outdoor environments, tall pipes are frequently exposed to rainwater, dew, and various chemicals. The corrosion resistance of aluminum alloys allows them to maintain good performance for extended periods, reducing maintenance and replacement costs caused by corrosion.

[0108] Excellent thermal conductivity: Aluminum alloy has excellent thermal conductivity, which can quickly dissipate the heat generated by the high-pole shears during operation. This helps prevent the high-pole tube from deforming or being damaged due to overheating, and also avoids burns to operators from contact with overheated tubes, improving safety and comfort during use.

[0109] like Figure 4 As shown, the telescopic switch 12 includes a locking switch 121 connected to the primary drive shaft 10. The locking switch 121 is connected to a locking plate 122 connected to the secondary drive shaft 11. When the primary drive shaft 10 moves forward or backward, it drives the locking switch 121 to press against the locking plate 122. The locking plate 122 locks the secondary drive shaft 11, causing the secondary drive shaft 11 to move forward or backward.

[0110] The advantages of the above settings are:

[0111] Precise and reliable transmission: The primary drive shaft 10 drives the locking switch 121 to press against the locking plate 122 to control the movement of the secondary drive shaft 11. This mechanical transmission method can accurately transmit the movement of the primary drive shaft to the secondary drive shaft, ensuring that the movable cutter head 16 moves in the expected manner, improving the precision and reliability of the cutting action, and ensuring that the position and force of each cut can be accurately controlled.

[0112] Simple and compact structure: The telescopic switch structure, consisting of locking switch 121 and locking pressure plate 122, is relatively simple, does not involve complex electronic components or transmission mechanisms, occupies little space, and can achieve efficient transmission function in limited high-branch pruning space, while also reducing manufacturing and maintenance costs.

[0113] High stability: The mechanical connection method makes the transmission process less susceptible to external interference, such as electromagnetic interference and signal transmission failures. As long as the manufacturing precision and quality of each component are guaranteed, it can work stably for a long time, reducing the possibility of equipment downtime due to component failure and improving the overall stability and durability of the high-branch pruning shears.

[0114] Easy to operate: The movement of the primary drive shaft 10 directly drives the locking switch 121 and the locking pressure plate 122. No additional complex operation or control system is required. The operator only needs to control the movement of the primary drive shaft to easily realize the movement of the movable cutter head 16. The operation process is simple, intuitive and easy to master.

[0115] The examples provided in this utility model are not intended to limit the implementation methods. Those skilled in the art will recognize that various variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementation methods, but any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A high-lift pruner device, characterized in that The system includes a transmission housing (2), with a mobile power supply (1) and a high-pole tube (9) connected to its two ends respectively. A controller board (4) and an integrated linear reciprocating structure (5) are connected inside the transmission housing (2). A control switch (7) is connected to the side of the transmission housing (2). The mobile power supply (1), the integrated linear reciprocating structure (5), and the control switch (7) are connected to the controller board (4). The high-pole tube (9) is connected to a telescopic switch (12) via a switch connecting housing (13). The end away from the transmission housing (2) is connected to a fixed cutter head (15) via a fixed cutter head connecting housing (14). The transmission end of the integrated linear reciprocating structure (5) is connected to a first-stage transmission shaft (10) located inside the high branch pipe (9). The first-stage transmission shaft (10) is connected to a second-stage transmission shaft (11) located inside the high branch pipe (9) via a telescopic switch (12). The second-stage transmission shaft (11) is connected to a movable cutter head (16) located outside the high branch pipe (9) and rotatably connected to the fixed cutter head (15) via a connecting rod. The integrated linear reciprocating structure (5) includes a motor (501) connected to the controller board (4). The motor (501) is connected to a lower rotating plate (503) via a planetary gearbox (502). The lower rotating plate (503) is connected to an upper rotating plate (505) via multiple sets of rotating pins (504). The upper rotating plate (505) is connected to a transmission pin (506) connected to the primary transmission shaft (10).

2. A high-reach lopper device according to claim 1, characterized in that The outer wall of the transmission housing (2) has multiple sets of evenly distributed inner grooves (3).

3. A high-reach pruner device according to claim 2, characterized in that The transmission housing (2) is made of plastic.

4. The high-reach pruner device of claim 1, wherein, The controller board (4) is an STM32F103 series microcontroller control board.

5. A high-branch pruning device according to claim 1, characterized in that, The motor (501) is a brushless motor.

6. The high-reach pruner device of claim 1, wherein, The planetary gearbox (502) is a three-stage planetary gearbox.

7. The high-reach pruner device of claim 1, wherein, A transmission sensor (6) is connected to the connection between the transmission pin (506) and the primary transmission shaft (10), and the transmission sensor (6) is electrically connected to the controller board (4).

8. The high-reach pruner device of claim 1, wherein, The control switch (7) is connected to the controller board (4) via the electronic control board (8), which is a signal conditioning type electronic control board.

9. The high-reach pruner device of claim 1, wherein, The high-branch pipe (9) is an aluminum alloy product.

10. The high-reach pruner device of claim 1, wherein, The telescopic switch (12) includes a locking switch (121) connected to the primary drive shaft (10). The locking switch (121) is connected to a locking plate (122) connected to the secondary drive shaft (11). When the primary drive shaft (10) moves forward or backward, it drives the locking switch (121) to press against the locking plate (122). The locking plate (122) locks the secondary drive shaft (11), causing the secondary drive shaft (11) to move forward or backward.

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