Pruning device for municipal green belt

Abstract

The utility model relates to the technical field of green belt trimming, and discloses a municipal green belt trimming device which comprises a frame with wheels at the bottom, a lifting mechanism is arranged on the frame, a fixing seat is connected to the lifting mechanism through a connecting pipe, an electric saw mounting seat is rotatably arranged on one side of the fixing seat, an electric saw is vertically and fixedly mounted on the electric saw mounting seat, and the electric saw is fixedly connected to the frame. A driving mechanism for controlling the electric saw mounting seat to rotate so as to enable the electric saw to rotate in the vertical direction to adjust the trimming angle is arranged on the fixed seat. The angle of the electric saw can be adjusted so that the electric saw can be in a horizontal state or a vertical state, the top face and the side face of a green belt can be trimmed conveniently, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of green belt pruning, in particular to a municipal green belt pruning device. Background Art

[0002] Municipal green belt refers to a strip of land for greening, which can eliminate visual fatigue, purify the environment, beautify the city, reduce traffic accidents, etc., and occupies an irreplaceable and important position in the city. Green belts can be divided into two types, one is a road green belt and the other is a sidewalk green belt. Usually, it is necessary to regularly trim and shape the dwarf shrub vegetation in the green belt to maintain its shape. Existing manual handheld small electric tools or manual scissors are used for pruning, which requires manual hand-held operation and has low pruning efficiency. The Chinese utility model patent with announcement number CN 220674493 U discloses a municipal green belt pruning device, including a body, a box body is fixedly installed on the top of the body, a partition is fixedly installed on the inner wall of the box body, and the partition divides the box body into two independent chambers, one is a water storage chamber and the other is a pruning chamber. The inner bottom wall of the box body is provided with a lifting assembly, the lifting assembly is located on the inner side of the pruning chamber, the top of the lifting assembly is provided with a telescopic assembly, and the top of the telescopic assembly is provided with an electric saw. The electric saw of the pruning device is convenient for adjusting the pruning height, and the electric saw can be retracted into the pruning cavity, but the electric saw of the pruning device cannot adjust the pruning direction, so it is only suitable for pruning the top surface of the green belt, and cannot be used for pruning the vertical direction of the side of the green belt, which is inconvenient to use. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a municipal green belt trimming device, which can adjust the trimming angle of the electric saw, is suitable for trimming the green belt in the horizontal and vertical directions, and is easy to use.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a municipal green belt trimming device, comprising a frame with wheels at the bottom, a lifting mechanism is provided on the frame, a fixed seat is connected to the lifting mechanism through a connecting pipe, an electric saw mounting seat is rotatably provided on one side of the fixed seat, an electric saw is vertically fixedly installed on the electric saw mounting seat, and a driving mechanism is provided on the fixed seat for controlling the rotation of the electric saw mounting seat so that the electric saw can rotate in the vertical direction to adjust the trimming angle.

[0005] Furthermore, the lifting mechanism includes a hollow circular bracket with a vertical opening, a screw and a first motor, the screw is arranged in the hollow circular bracket, and the upper and lower ends of the screw are rotatably connected to the upper and lower ends of the hollow circular bracket, the first motor connected to the screw is arranged on the top of the hollow circular bracket, a moving seat is screwed on the outside of the screw, sliders are arranged on both sides of the moving seat, a slide rail that slides with the slider is arranged on the inner wall of the hollow circular bracket, and the moving seat is connected to the connecting pipe.

[0006] Furthermore, the movable seat is provided with a sleeve, the sleeve extends out of the opening, the connecting pipe is sleeved with the sleeve, and the sleeve is provided with a fastening bolt.

[0007] Furthermore, the driving mechanism includes a second motor and a reversing gear box, the reversing gear box includes a box body and a first bevel gear and a second bevel gear arranged in the box body, the first bevel gear and the second bevel gear are meshed; the first bevel gear is connected to the first gear shaft, the second bevel gear is connected to the second gear shaft, the first gear shaft and the second gear shaft are respectively rotatably connected to the box body, the second motor is connected to the first gear shaft, and the second gear shaft is connected to the electric saw mounting base.

[0008] Furthermore, the driving mechanism includes a circular gear, a rack and a telescopic cylinder, the circular gear is connected to the third gear shaft, the third gear shaft is rotatably connected to the fixed seat, the end of the third gear shaft is connected to the electric saw mounting seat, the rack is meshed with the circular gear, the bottom of the rack is slidably connected to the fixed seat, the telescopic cylinder is arranged on the top of the fixed seat, and the lower end of the telescopic cylinder is connected to the rack.

[0009] Furthermore, a push handle is provided on the frame.

[0010] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0011] The new electric saw in this embodiment is vertically installed on the electric saw mounting seat, and a driving mechanism for adjusting the trimming angle of the electric saw is provided on the fixed seat. The electric saw mounting seat is driven by the driving mechanism to rotate, thereby adjusting the angle of the electric saw to make the electric saw angle horizontal or vertical, which is convenient for trimming the top and sides of the green belt and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a municipal green belt trimming device of the utility model;

[0013] Figure 2 It is a transverse cross-sectional view of the lifting mechanism of the utility model;

[0014] Figure 3 A structural schematic diagram of the driving mechanism of the utility model;

[0015] Figure 4 This is another structural schematic diagram of the driving mechanism of the utility model.

[0016] In the figure: 1-frame, 2-trolley handle, 3-lifting mechanism, 31-first motor, 32-screw, 34-slider, 33-moving seat, 35-slide rail, 36-hollow circular bracket, 37-opening, 38-sleeve, 4-electric saw, 5-connecting pipe, 6-fixed seat, 7-electric saw mounting seat, 8-driving mechanism, 81-second motor, 82-reversing gear box, 821-box, 822-first bevel gear, 823-second bevel gear, 824-first gear shaft, 825-second gear shaft, 83-circular gear, 84-rack, 85-telescopic cylinder. DETAILED DESCRIPTION

[0017] In order to make the technical personnel of the technical field better understand the present utility model scheme, the technical scheme in the present utility model embodiment will be clearly and completely described below in conjunction with the drawings in the present utility model embodiment. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by the technical personnel in the technical field belonging to the present utility model. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0018] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0019] like Figure 1 , Figure 2 As shown, a municipal green belt trimming device comprises a frame 1 with wheels at the bottom, and a cart handle 2 is provided on the frame 1, so that the frame 1 can be easily moved by the cart handle 2. A lifting mechanism 3 is provided on the frame 1, and a fixing seat 6 is connected to the lifting mechanism 3 through a connecting pipe 5, and an electric saw mounting seat 7 is rotatably provided on one side of the fixing seat 6, and an electric saw 4 is vertically fixedly installed on the electric saw mounting seat 7, and a driving mechanism 8 is provided on the fixing seat 6 for controlling the rotation of the electric saw mounting seat 7 so that the electric saw 4 rotates in the vertical direction to adjust the trimming angle.

[0020] Specifically, Figure 2 As shown, the lifting mechanism 3 includes a hollow circular bracket 36 with a vertical opening 37, a screw rod 32 and a first motor 31. The screw rod 32 is arranged in the hollow circular bracket 36, and the upper and lower ends of the screw rod 32 are rotatably connected to the upper and lower ends of the hollow circular bracket 36. The top of the hollow circular bracket 36 is provided with a first motor 31 connected to the screw rod 32. The screw rod 32 is screwed to the outside, and sliders 34 are arranged on both sides of the moving seat 33. The inner wall of the hollow circular bracket 36 is provided with a slide rail 35 that slides with the slider 34, and the moving seat 33 is connected to the connecting pipe 5. The screw rod 32 is driven to rotate by the first motor 31, thereby driving the moving seat 33 to rise and fall.

[0021] like Figure 1 , 2 As shown, in order to facilitate disassembly and assembly, a sleeve 38 is provided on the movable seat 33, and the sleeve 38 extends out of the opening 37. The connecting pipe 5 is sleeved with the sleeve 38, and a fastening bolt is provided on the sleeve 38. When installing, loosen the fastening bolt, insert the connecting pipe 5 into the sleeve 38, and then fix it with the fastening bolt.

[0022] like Figure 3 As shown, in this embodiment, the driving mechanism 8 includes a second motor 81 and a reversing gear box 82, the reversing gear box 82 includes a box body 821 and a first bevel gear 822 and a second bevel gear 823 arranged in the box body 821, the first bevel gear 822 and the second bevel gear 823 are meshed; the first bevel gear 822 is connected to the first gear shaft 824, the second bevel gear 823 is connected to the second gear shaft 825, the first gear shaft 824 and the second gear shaft 825 are respectively rotatably connected to the box body 821, the second motor 81 is connected to the first gear shaft 824, and the second gear shaft 825 is connected to the electric saw mounting base 7. When in use, the first gear shaft 824 is driven to rotate by the second motor 81, thereby driving the first bevel gear 822 to rotate. The first bevel gear 822 synchronously drives the second bevel gear 823, thereby driving the electric saw mounting base 7 to rotate through the second gear shaft 825, so that the electric saw 4 can adjust the angle in the vertical direction. The adjustable angle range can be achieved by controlling the number and frequency of pulses of the first motor 31.

[0023] When trimming the top of the green belt, the electric saw 4 is adjusted to a horizontal state, the electric saw mounting seat 7 is driven by the driving mechanism 8 to rotate 90° clockwise, the height of the electric saw 4 is adjusted by the lifting mechanism 3, and then the electric saw 4 is started, and the frame 1 is pushed to move, thereby driving the top of the green belt to be trimmed. When trimming the side of the green belt, the electric saw 4 can be adjusted to a vertical state.

[0024] Example 2

[0025] Different from Example 1, Figure 4As shown, the driving mechanism 8 includes a circular gear 83, a rack 84 and a telescopic cylinder 85. The circular gear 83 is connected to the third gear shaft, the third gear shaft is rotatably connected to the fixed seat 6, the end of the third gear shaft is connected to the electric saw mounting seat 7, the rack 84 is meshed with the circular gear 83, the bottom of the rack 84 is slidably connected to the fixed seat 6, and the telescopic cylinder 85 is arranged on the top of the fixed seat 6, and the lower end of the telescopic cylinder 85 is connected to the rack 84. The telescopic cylinder 85 can be one of an electric cylinder and a hydraulic cylinder. When the telescopic cylinder 85 is extended, it drives the rack 84 to move downward, and drives the circular gear 83 to rotate through the rack 84, so that the electric saw mounting seat 7 rotates clockwise, and the electric saw 4 is adjusted to a horizontal state; when the telescopic cylinder 85 is retracted, it drives the rack 84 to move upward, drives the circular gear 83 to rotate counterclockwise, and adjusts the electric saw 4 to a vertical state.

[0026] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A municipal green belt trimming device, characterized in that: The utility model comprises a frame with wheels at the bottom, the frame is provided with a lifting mechanism, the lifting mechanism is connected to a fixing seat via a connecting pipe, a power saw mounting seat is rotatably provided on one side of the fixing seat, a power saw is vertically fixedly mounted on the power saw mounting seat, and a driving mechanism for controlling the rotation of the power saw mounting seat so that the power saw can rotate in the vertical direction to adjust the trimming angle is provided on the fixing seat.

2. A municipal green belt trimming device according to claim 1, characterized in that: The lifting mechanism includes a hollow circular bracket with a vertical opening, a screw and a first motor. The screw is arranged in the hollow circular bracket, and the upper and lower ends of the screw are rotatably connected to the upper and lower ends of the hollow circular bracket. The top of the hollow circular bracket is provided with the first motor connected to the screw. A moving seat is screwed on the outside of the screw, and sliders are provided on both sides of the moving seat. A slide rail that slides with the slider is provided on the inner wall of the hollow circular bracket, and the moving seat is connected to the connecting pipe.

3. A municipal green belt trimming device according to claim 2, characterized in that: The movable seat is provided with a sleeve, the sleeve extends out of the opening, the connecting pipe is sleeved with the sleeve, and the sleeve is provided with a fastening bolt.

4. A municipal green belt trimming device according to claim 1, characterized in that: The driving mechanism includes a second motor and a reversing gear box, the reversing gear box includes a box body and a first bevel gear and a second bevel gear arranged in the box body, the first bevel gear and the second bevel gear are meshed; the first bevel gear is connected to the first gear shaft, the second bevel gear is connected to the second gear shaft, the first gear shaft and the second gear shaft are respectively rotatably connected to the box body, the second motor is connected to the first gear shaft, and the second gear shaft is connected to the electric saw mounting base.

5. The municipal green belt trimming device according to claim 1, characterized in that: The driving mechanism includes a circular gear, a rack and a telescopic cylinder. The circular gear is connected to the third gear shaft, the third gear shaft is rotatably connected to the fixed seat, the end of the third gear shaft is connected to the electric saw mounting seat, the rack is meshed with the circular gear, the bottom of the rack is slidably connected to the fixed seat, the telescopic cylinder is arranged on the top of the fixed seat, and the lower end of the telescopic cylinder is connected to the rack.

6. A municipal green belt trimming device according to claim 1, characterized in that: The frame is provided with a cart handle.

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