Integrated high branch scissors
By integrating the design of high-branch shears with a large motor and speed control components, the problem of insufficient torque in electric pruning shears has been solved, achieving high torque output and stability, reducing costs and improving the motor's heat dissipation efficiency.
Patent Information
- Application Number
- CN202520081949.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing electric pruning shears have insufficient torque, and high-torque models are complex in structure, expensive, and suffer from severe motor overheating and unstable performance.
It adopts an integrated high-branch shear design, combining a large motor and a speed-changing component. The torque is amplified through gear meshing, and heat dissipation fins and vents are set inside the housing to improve heat dissipation efficiency.
It achieves high torque output, reduces costs, and improves the stability and service life of the motor.
Smart Images
Figure CN223666860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric pruning shears structure technology, and in particular to an integrated high branch shear. Background Technology
[0002] Electric pruning shears are tools that use electric power to prune trees. Compared to traditional manual pruning shears, electric pruning shears use an electric motor and blades.
[0003] Electric pruning shears improve pruning efficiency and ease of use by utilizing electric drive, making tree pruning more efficient, precise, and safe. They are one of the most commonly used tools in modern horticulture and agriculture, providing an effective solution for tree maintenance and beautification.
[0004] However, the torque provided by existing electric pruning shears is too small to meet the needs of tree pruning. Although some electric pruning shears can generate large torque, their overall structure is complex, their cost is high, and their motors overheat and their performance is unstable. Utility Model Content
[0005] To address the aforementioned technical problems, the purpose of this utility model is to provide an integrated high-branch shear, which has high torque, low cost, good motor heat dissipation, and stable performance.
[0006] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:
[0007] This integrated high-branch shears includes shear blades, a housing, a speed control assembly, a motor, a button, and a battery assembly. The two shear blades are hinged together, with one blade fixed to one end of the housing and the other connected to the output end of the speed control assembly via a pull rod. The speed control assembly is housed within the housing. The motor is fixed within the housing via a support frame, and one end of the motor shaft is driven by gears meshing with the input end of the speed control assembly. A heat dissipation fin is fixed to the other end of the motor shaft. Ventilation openings are provided on both the support frame and the housing. The battery assembly is located at the other end of the housing. The button is located within the housing between the battery assembly and the motor. Pressing the button powers the motor, which in turn drives the pull rod to extend or retract, causing the two shear blades to separate or come together, thus achieving the shearing function.
[0008] As a preferred embodiment, the transmission assembly includes a double gear A, a double gear B, a double gear C, and a sector gear connecting rod, all of which are rotatably disposed within the housing via shafts. The double gear A, double gear B, double gear C, and sector gear connecting rod mesh and transmit power sequentially, and the sector gear connecting rod is connected to a tie rod.
[0009] As a preferred scheme, the double gear A is a bevel gear and a spur gear coaxially arranged, the double gear B and the double gear C are two coaxially arranged spur gears with different sizes and gear ratios, the bevel gear of the double gear A is engaged with a gear on an output shaft of the motor, the spur gear of the double gear A is engaged with a large spur gear on the double gear B, the small spur gear on the double gear B is engaged with a large spur gear on the double gear C, the small spur gear on the double gear C is engaged with a sector gear connecting rod, and the sector gear connecting rod is connected with a pull rod.
[0010] As a preferred scheme, the shell comprises a fixed shell, a pull rod shell and a gearbox shell which are fixedly connected in sequence, one end of the gearbox shell is a hand holding part, a touch switch is arranged in the hand holding part, a button is hinged at the hand holding part, and the touch switch is opened by pressing the button.
[0011] As a preferred scheme, the battery assembly is slidingly inserted at one end of the hand holding part.
[0012] As a preferred scheme, the scissors blade comprises a movable scissors blade and a fixed scissors, the movable scissors blade and the fixed scissors are hinged through a screw rod, and one end of the screw rod is locked through a limiting nut.
[0013] As a preferred scheme, a gear A is fixed on the limiting nut, a locking screw rod is further arranged on the fixed scissors, and a gear B engaged with the gear A is arranged on the locking screw rod.
[0014] As a preferred scheme, a supporting end face is arranged at one end of the screw rod, and a plane bearing is further arranged between the supporting end face and the movable scissors blade.
[0015] As a preferred scheme, a processing chip is further arranged in the shell, and a display assembly for displaying the electric quantity and the shearing times is further arranged on the shell and connected with the processing chip.
[0016] Compared with the prior art, the utility model has the advantages of:
[0017] The utility model adopts a large motor, and the torque is amplified through the speed change assembly, the requirement of branch pruning is met, the motor of the utility model is connected with a heat dissipation blade, a ventilation opening is arranged on the shell, the heat dissipation efficiency of the internal parts of the shell is improved, the overall stability is higher, and the overall service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0018] The drawings accompanying the specification provide further understanding of the present application, the schematic embodiments of the present application and the description thereof serve to explain the present application, and do not constitute the limitation of the present application.
[0019] Fig. 1It is the whole structure schematic view of the utility model;
[0020] Fig. 2 It is the installation structure schematic view of the scissor blade, fixed shell and pull rod of the utility model;
[0021] Fig. 3 It is the installation structure schematic view of the button, motor, variable speed assembly, pull rod and other structures in the shell.
[0022] The figure mark is: 1, movable scissor blade;2, fixed scissor;3, fixed shell;4, pull rod;5, pull rod shell;6, variable speed box shell;7, display assembly;8, hand-held part;9, button;10, battery assembly;11, limit nut;12, locking screw;13, motor;14, support frame;15, heat dissipation blade;16, double gear A;17, double gear B;18, double gear C;19, fan-shaped gear connecting rod. DETAILED DESCRIPTION
[0023] It should be noted that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0024] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.
[0025] In addition, in the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0030] like Figs. 1 to 3 The integrated high-branch shears shown include shear blades, a housing, a speed control assembly, a motor 13, a button 9, and a battery assembly 10. The two shear blades are hinged together, with one blade fixed to one end of the housing and the other connected to the output end of the speed control assembly via a pull rod 4. The speed control assembly is housed within the housing. The motor 13 is fixed within the housing via a support frame 14, and one end of the motor shaft is driven by gear meshing with the input end of the speed control assembly. A heat dissipation fin 15 is fixed to the other end of the motor shaft. Ventilation openings are provided on both the support frame 14 and the housing. The battery assembly 10 is located at the other end of the housing. The button 9 is located in the housing between the battery assembly 10 and the motor 13. Pressing the button 9 powers the motor 13 via the battery assembly 10, which in turn drives the pull rod 4 to extend or retract, causing the two shear blades to separate or come together, thus achieving the shearing function.
[0031] The variable speed assembly includes double gear A16, double gear B17, double gear C18 and sector gear connecting rod 19 arranged in the housing by shaft rotation, which are sequentially meshed and connected with the pull rod 4.
[0032] The double gear A16 is a bevel gear and a straight gear arranged coaxially, the double gear B17 and double gear C18 are two straight gears arranged coaxially and having different gear ratios, the bevel gear of the double gear A16 is meshed with the gear on the output shaft of the motor 13, the straight gear of the double gear A16 is meshed with the large straight gear on the double gear B17, the small straight gear on the double gear B17 is meshed with the large straight gear on the double gear C18, the small straight gear on the double gear C18 is meshed with the sector gear connecting rod 19, and the sector gear connecting rod 19 is connected with the pull rod 4.
[0033] The housing includes a fixed housing 3, a pull rod housing 5 and a variable speed box housing 6 connected in sequence, one end of the variable speed box housing 6 is a hand-held part 8, a touch switch is arranged in the hand-held part 8, a button 9 is hinged at the hand-held part 8, and pressing the button 9 opens the touch switch. The battery assembly 10 is a lithium ion battery, and the battery assembly is detachably connected and slidably inserted into one end of the hand-held part.
[0034] The scissors blade includes a movable scissors blade 1 and a fixed scissors blade 2, the fixed scissors blade 2 is fixed to one end of the fixed housing 3, and the end of the movable scissors blade 1 is connected with the pull rod 4, that is, one end of the pull rod 4 is threadedly connected with a connecting bracket, and an adjusting nut for adjusting the depth of the pull rod inserted into the connecting bracket is arranged at the connecting position, the connecting bracket is hinged with the end of the movable scissors blade 1 through a shaft, and the other end of the pull rod is connected with the sector gear connecting rod 19, so that the movable scissors blade 1 and the fixed scissors blade 2 are closed or opened by the extension and contraction of the pull rod, thereby realizing the shearing function.
[0035] The movable scissors blade 1 and the fixed scissors blade 2 are hinged by a screw rod, and one end of the screw rod is locked by a limiting nut 11. In order to prevent the screw rod and the limiting nut from being loosened during repeated rotation of the movable scissors blade 1, a locking screw rod is further arranged beside the limiting nut, the locking screw rod is threadedly fastened with the fixed scissors blade 2, a gear A is fixed on the limiting nut 11, a locking screw rod 12 is further arranged on the fixed scissors blade 2, and a gear B meshing with the gear A is arranged on the locking screw rod 12. One end of the screw rod is provided with a supporting end face, and a plain bearing is further arranged between the supporting end face and the movable scissors blade 1. The plain bearing can make the movable scissors blade 1 and the end face of the screw rod in rolling contact, so as to avoid loosening caused by rotation of the screw rod.
[0036] The shell is internally provided with a processing chip, and is externally provided with a display assembly 7 for displaying the power and the number of shearing times, which is connected with the processing chip.
[0037] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0038] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application without departing from the principles and spirits of the present application. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still belongs to the scope of the technical scheme of the present application.
Claims
1. An integrated high-lift pruner characterized in that: The utility model relates to a portable scissors, including scissors blade, shell, variable speed assembly, motor (13), button (9) and battery assembly (10), two scissors blade articulate each other, one piece is fixed with the one end of shell, the other piece is connected with the output end of variable speed assembly through pull rod (4), the variable speed assembly sets up in the shell, the motor (13) is fixed in the shell through support frame (14), and one end of motor shaft is engaged transmission with the input end of variable speed assembly through gear, the other end of motor shaft is fixed with heat dissipation blade (15), the support frame (14) is equipped with ventilation opening on both the shell, the battery assembly (10) sets up in the other end of shell, the button (9) sets up in the shell between battery assembly (10) and motor (13), makes battery assembly (10) power supply for motor (13) through pressing button (9), to drive pull rod (4) telescopic drive two scissors blade separate or draw close to each other, realize shearing function.
2. The unitary limb lopper of claim 1, wherein, The variable speed assembly includes double gear A (16), double gear B (17), double gear C (18) and sector gear connecting rod (19) that are rotatably arranged in the shell through shafts, the double gear A (16), the double gear B (17), the double gear C (18) and the sector gear connecting rod (19) are sequentially engaged transmission, and the sector gear connecting rod (19) is connected with the pull rod (4).
3. The unitary limb lopper of claim 2, wherein, The double gear A (16) is a bevel gear and a spur gear arranged coaxially, the double gear B (17) and the double gear C (18) are both two coaxially arranged size spur gears with different gear ratios, the bevel gear of the double gear A (16) is engaged with the gear on the output shaft of the motor (13), the spur gear of the double gear A (16) is engaged with the large spur gear on the double gear B (17), the small spur gear on the double gear B (17) is engaged with the large spur gear on the double gear C (18), the small spur gear of the double gear C (18) is engaged with the sector gear connecting rod (19), and the sector gear connecting rod (19) is connected with the pull rod (4).
4. The unitary limb lopper of claim 1, wherein, The shell includes a fixed shell (3), a pull rod shell (5) and a variable speed box shell (6) that are fixedly connected in sequence, one end of the variable speed box shell (6) is a hand holding part (8), a touch switch is arranged in the hand holding part (8), the button (9) is articulated at the hand holding part (8), and pressing the button (9) makes the touch switch open.
5. The unitary limb lopper of claim 4, wherein, The battery assembly (10) is slidingly inserted into one end of the hand holding part.
6. The unitary limb lopper of claim 1, wherein, The scissors blade includes a movable scissors blade (1) and a fixed scissors (2), the movable scissors blade (1) and the fixed scissors (2) are articulated by a screw rod, and one end of the screw rod is locked by a limiting nut (11).
7. The unitary limb lopper of claim 6, wherein, A gear A is fixed on the limiting nut (11), a locking screw rod (12) is further arranged on the fixed scissors (2), and a gear B engaged with the gear A is arranged on the locking screw rod (12).
8. The unitary limb lopper of claim 6, wherein, One end of the screw rod is provided with a supporting end face, and a plain bearing is further arranged between the supporting end face and the movable scissors blade (1).
9. The unitary limb lopper of claim 1, wherein, The shell is internally provided with a processing chip, and is externally provided with a display assembly (7) for displaying the power and the number of shearing times, which is connected with the processing chip.