A handheld electric leaf thinning device

Abstract

The present invention relates to the technical field of urban greening operations, and specifically to a novel handheld electric leaf-combing device. The device is mainly composed of four parts, namely a housing and an adjustment structure, a motor and a battery, a transmission structure, a fixed blade, and a shearing blade. The housing and the adjustment structure are used to fix and adjust the blade angle, and the transmission structure drives and converts the movement of the motor, and shearing is achieved through two sets of blades. In the past, there was no device specifically designed to achieve leaf thinning, and leaves were removed manually. This design solves the problem of conveniently and efficiently removing leaves when transplanting plants without easily damaging the operator and the plant itself. The device can be used for daily gardening activities, agriculture, and urban greening operations.

Description

Technical Field

[0001] The present invention relates to the field of urban greening operations, and in particular to an electric leaf plowing device. Background Art

[0002] Existing power tools for landscaping primarily prune and shape plants. However, their mechanical structure and shearing force are not suitable for leaf thinning, causing damage to plants and making them difficult to operate. Furthermore, the difficulty in operation makes them vulnerable to injuries from the power tools. Summary of the Invention

[0003] In order to solve the shortcomings of the existing technology, a new handheld electric leaf combing device is proposed to achieve the purpose of convenient and efficient leaf pruning and provide certain protection for plants and operators.

[0004] A handheld electric combing device comprises a handle, a housing, a transmission mechanism, an adjustment mechanism and a blade assembly. A battery and a motor are provided inside the handle. The transmission mechanism consists of a gear set and a connecting rod. The gear set comprises a bevel gear on the motor shaft and a gear with an eccentric wheel perpendicular to the motor shaft. The connecting rod comprises a straight connecting rod connected to the shearing blade and a rounded rectangular frame with its lower end sleeved on the eccentric wheel. The rotation of the motor shaft is converted into rotation of a gear perpendicular to the motor shaft by the bevel gear, and the rounded rectangular frame is then driven by the eccentric wheel on the vertical shaft gear, thereby driving the straight connecting rod and the shearing blade, thereby converting the rotation into reciprocating linear motion.

[0005] The outer shell is used to fix the internal motor, battery and transmission mechanism, and connect to the external fixed blade; the adjustment mechanism is used to adjust the angle of the fixed blade to facilitate leaf thinning operations on branches of different thicknesses; the motor and battery provide power; the transmission mechanism plays a driving role and converts the rotation of the motor axis into rotation in the direction of the vertical axis, and then finally converts it into a linear reciprocating motion of the fixed blade and the shear blade; the function of removing leaves is achieved through the shearing of two sets of blades.

[0006] The lower portion of the housing is a handle, while the upper portion is a cylindrical shell with an axis perpendicular to the handle. The adjustment mechanism, similar to the structure at the base of a compass for adjusting the opening angle, consists of two interlocking half gears connected to one end of the fixed blade. The angle can be adjusted between approximately 0° and 40°, with 0° being convenient for storage. During operation, the opening angle is selected based on the thickness of the branches. The blade is secured to the housing with screws. The transmission mechanism consists of a gear train and a connecting rod. The gear train includes a bevel gear on the motor shaft and a gear with an eccentric gear perpendicular to the motor shaft. The connecting rod consists of a straight connecting rod connected to the shear blade and a rounded rectangular frame at its lower end that fits over the eccentric gear. The bevel gear converts the motor shaft's rotation into rotation of the gear on the perpendicular shaft. The eccentric gear on the perpendicular shaft then drives the straight connecting rod connected to the shear blade, converting this rotation into reciprocating linear motion. The fixed blade and shear blade are two sets of straight blades with wavy teeth. The fixed blade is connected to the adjustment mechanism, while the shear blade is connected to the transmission mechanism, forming a Y-shaped arrangement. The two sets of blades with staggered teeth can cut leaves and twigs by the back and forth movement of the shear blades. The two sets of blades can also adopt straight serrated blades with staggered teeth.

[0007] To use, first separate the two sets of blades to the appropriate angle, extend the blade toward the branch, making sure the trunk is between the two sets of blades, then turn on the power and gently sweep along the trunk, changing the angle to remove leaves. It can also be used as a regular pruning shear.

[0008] The beneficial effect of the present invention is that, through the newly designed transmission mechanism and blade setting, an electric tool shearing structure capable of thinning leaves is realized, so that the leaf thinning device can be operated by hand, eliminating the difficulty in operating actions and protecting plant branches and operators to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The figure is a structural schematic diagram of a novel handheld electric combing device of the present invention.

[0010] Figure 2 、 3 The figure is a schematic diagram of the internal structure of a novel handheld electric combing device of the present invention.

[0011] Figure 4 This is a schematic structural diagram of a blade assembly of a novel handheld electric combing device of the present invention.

[0012] Reference numerals:

[0013] 1. Blade assembly; 2. Housing; 3. Transmission mechanism; 4. Handle; 5. Adjustment mechanism; 6. Rounded rectangular frame; 7. Motor; 8. Battery assembly; 9. Connecting rod; 10. Gear set; 11. Fixed blade; 12. Shear blade; 13. Teeth; 14. Half gear. DETAILED DESCRIPTION

[0014] Specific embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solutions of the present invention in detail.

[0015] like Figures 1 to 4 , a handheld electric leaf plowing device and its mechanical structure embodiment 1: including a cylindrical shell, a handle, made of engineering plastics to reduce weight, so as to avoid fatigue during long-term hand-held work. The upper part of the cylindrical shell is connected to the adjustment device ring with screws, and the inner part is as follows Figure 2 、 3 The rivet connects the half gear at the lower end of the fixed blade. The half gear can be adjusted between about 0° and 40°. It is convenient to store at 0°. When working, the opening angle is selected according to the thickness of different branches. Steel is used as the material to ensure a stable structure that is not easily damaged.

[0016] The motor and battery are fixed inside the handle. The motor uses a 3.6 or 4.2V DC motor with a power of about 8 to 12W; the battery uses a rechargeable lithium battery with a capacity of about 1.5 to 2Ah. The charging time is 2 hours, and a full charge can work for about 40 to 60 minutes. A charging cable and configurator are required (a mobile power supply is required for long-term work).

[0017] The motor shaft extends from the handle and connects to a bevel gear. This bevel gear meshes with a vertical gear, which in turn has an eccentric attached to it and is connected to the outer cylindrical housing by a shaft. A rounded rectangular frame surrounds the eccentric, with a straight connecting rod attached to its upper end. This structure converts the motor shaft's rotation into rotation of the vertical shaft via the bevel gear. The eccentric on the gear then drives the shear blade below, converting this rotation into reciprocating linear motion.

[0018] Connecting the straight link to the shear blade with a screw and nut will drive the reciprocating motion, and the wavy or serrated teeth on the blade will achieve the shearing. A thin rod under the fixed blade allows for easy angle adjustment.

Claims

1. A handheld electric leaf thinning device comprising a housing, a handle, a transmission mechanism, an adjustment mechanism, and a blade assembly, characterized in that: A battery and a motor assembly are provided in the handle, and the transmission mechanism consists of a gear set and a connecting rod; the gear set includes a bevel gear on the motor shaft and a gear with an eccentric wheel perpendicular to the motor shaft, and the connecting rod is a straight connecting rod connected to the shear blade and a rounded rectangular frame with a lower end sleeved on the eccentric wheel; the transmission mechanism, battery and motor assembly are installed in the housing, and an adjustment mechanism is provided at the top of the housing. A fixed blade is installed on the adjustment mechanism, and the fixed blade and the shear blade constitute a blade assembly. The fixed blade on the straight connecting rod converts the rotation of the motor shaft into the rotation of the gear perpendicular to the motor shaft through the bevel gear, and then drives the rounded rectangular frame through the eccentric wheel on the vertical axis gear, thereby linking the straight connecting rod and driving the shear blade to perform reciprocating linear motion; the adjustment mechanism is a structure of two mutually meshing half gears connected to one end of the fixed blade, and the half gears mesh with each other to adjust the opening angle; the shear blade is rivet-connected to the straight connecting rod, and the shear blade is driven to move back and forth on the fixed blade through the transmission of the gear; the opening angle of the two fixed blades connected to the adjustment mechanism is 0°~40°.

2. A handheld electric leaf thinning device according to claim 1, characterized in that: The fixed blade and the shearing blade are straight blades with staggered wavy teeth.

3. The handheld electric leaf thinning device according to claim 1, characterized in that: The fixed blade and the shearing blade are straight blades with staggered serrated blades.

4. The handheld electric leaf thinning device according to claim 1, characterized in that: A rechargeable lithium battery is arranged inside the handle.

Images