CN215582555U

CN215582555U - Hand-held single-wheel weeding machine

Info

Publication number: CN215582555U
Application number: CN202121431686.1U
Authority: CN
Inventors: 刘绪周; 王建成; 陈玉宝
Original assignee: Weifang Wofu Machinery Co ltd
Current assignee: Weifang Wofu Machinery Co ltd
Priority date: 2021-06-26
Filing date: 2021-06-26
Publication date: 2022-01-21
Anticipated expiration: 2031-06-26

Abstract

The utility model discloses a hand-held single-wheel weeder which comprises a weeding wheel arranged at the front part of a frame, a power device arranged at the upper part of the frame and used for driving the weeding wheel to rotate, a height-adjustable handrail device arranged above the rear part of the frame, a supporting wheel arranged at the lower part of the frame and positioned behind the weeding wheel, and a scarification shovel positioned behind the supporting wheel and adjustable in height; the hand-held single-wheel weeding machine has the advantages of simple structure, small width of the whole machine, narrow occupied space, difficulty in damaging crops and suitability for weeding and weeding in narrow-row-spacing farmlands.

Description

Hand-held single-wheel weeding machine

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a hand-held single-wheel weeding machine.

Background

After planting crops, hoeing and weeding in the field are important subsequent production steps, and generally, a hoe is used for renovating soil, removing weeds and enabling the crops to grow rapidly. In dry weather, a water-retaining layer containing a plurality of air gaps is formed on the surface of soil by hoeing and turning over, which is beneficial to the roots of crops to grow deeply into the soil so as to obtain more water and nutrition. With the rapid development of modern agricultural mechanization, most of the modern agricultural mechanization is large-scale mechanical continuous tillage, equipment for completing the weeding step is also provided, but the equipment is generally complex in structure, adopts two supporting wheels, occupies a wider operation space, is very easy to cause crop damage when entering field operation, and is particularly not suitable for smooth operation of narrow-row-spacing farmland operation.

Disclosure of Invention

In view of the above, the technical problems to be solved by the present invention are: the hand-held single-wheel weeding machine is simple and compact in structure, small in occupied space, not easy to hurt crops and especially suitable for narrow-row-spacing farmland weeding operation.

In order to solve the technical problems, the technical scheme of the utility model is as follows: a hand-held single-wheel weeding machine comprises a rack, wherein weeding wheels are arranged on the front portion of the rack, a power device used for driving the weeding wheels to rotate is arranged on the upper portion of the rack, a handrail device is arranged above the rear portion of the rack, and a supporting wheel is arranged on the lower portion of the rack and located behind the weeding wheels.

The following is a plurality of further optimized designs of the hand-held single-wheel weeder of the utility model:

wherein, the wheel of weeding includes: the wheel shaft is transversely arranged; the two polygonal star-shaped connecting plates are fixed on the wheel shaft, and the corner of each polygonal star-shaped connecting plate is turned outwards to form a flat plate connecting part; and the two flat plate connecting parts corresponding to the positions of the two polygonal star-shaped connecting plates are fixedly provided with one blade through a threaded fastener.

The power device comprises an engine, and the engine is in transmission connection with the weeding wheel through a transmission mechanism.

Wherein, further, the engine adopts petrol engine or diesel engine, drive mechanism adopts belt drive mechanism.

The output end of the belt transmission mechanism is connected with a speed reducer, and the output end of the speed reducer is connected with the weeding wheel.

The weeding wheel protective cover is arranged on the front portion of the rack and covers the upper portion and the rear portion of the weeding wheel.

The armrest device comprises an armrest frame, the front end of the armrest frame is hinged to the frame, two armrest handles are arranged at the rear end of the armrest frame, and an armrest height adjusting device is arranged between the armrest frame and the frame.

Wherein, handrail height adjusting device includes: the handle is arranged on one of the handrail handles, the handle is connected with one end of the brake cable, and the other end of the brake cable is connected with a pin shaft; the sleeve is fixed on the rack, and a return spring and the pin shaft are arranged in the sleeve; the armrest frame comprises an arc-shaped plate, a plurality of positioning holes and a pin shaft, wherein the arc-shaped plate is fixedly arranged at the bottom of the armrest frame, the arc-shaped plate is provided with the plurality of positioning holes along the arc direction, and the pin shaft penetrates through one of the positioning holes; when the handle is pressed, the pin shaft is separated from the positioning hole.

One of the handles is provided with a flameout switch, and the flameout switch is connected with the power device through a flameout cable; and the other armrest handle is provided with an accelerator switch which is connected with the power device through an accelerator cable.

The rear portion of the frame is provided with a height-adjustable break shovel, and the break shovel is located behind the supporting wheels.

After the technical scheme is adopted, the utility model has the following beneficial effects:

because the hand-held single-wheel weeding machine is provided with the weeding wheels driven by the power device at the front part of the frame, the handrail device is arranged above the rear part of the frame, and the supporting wheel is arranged at the rear part of the weeding wheels at the lower part of the frame; during the field operation, the handrail device is controlled manually, the power device drives the weeding wheel to rotate, the whole machine is driven to move forwards while weeding is carried out, and only one supporting wheel is arranged behind the weeding wheel, so that the whole machine is simple in structure, small in width and narrow in occupied space, can smoothly hoe and weed in narrow-row-spacing farmlands, and is not easy to damage crops.

Because the handrail height adjusting device is arranged between the handrail frame and the rack, the height of the handrail can be conveniently and flexibly adjusted by controlling the handle, the operating height requirements of people with different heights are met, and the adaptability is better.

Because the rear of supporting wheel is provided with height-adjustable's break shovel, the soil that the supporting wheel was gone forward and was pressed can be turned over the pine again through break shovel, is favorable to crops to grow.

Drawings

FIG. 1 is a schematic front view of a walking single-wheel weed extractor in accordance with an embodiment of the present invention;

FIG. 2 is a perspective view of FIG. 1 in one orientation;

FIG. 3 is a perspective view of FIG. 1 in another orientation;

FIG. 4 is a schematic view of the construction of the weeding wheel of FIG. 1;

in the figure: 1-a frame; 11-a support seat; 12-a sleeve; 2-weeding wheels; 21-axle; 22-a polygonal star-shaped connecting plate; 221-plate connection; 23-a blade; 3-weeding wheel protective cover; 41-a power plant; 411-kill switch; 412-throttle switch; 42-a transmission mechanism; 43-a speed reducer; 5-a handrail device; 51-armrest frame; 52-a handrail; 53-arc plate; 531-positioning holes; 54-a hinge axis; 551-handle; 552-brake line; 553-a return spring; 554-a pin shaft; 6-supporting wheels; 7-loosening shovel.

Detailed Description

The utility model is further illustrated in the following non-restrictive manner with reference to the figures and examples.

For convenience of description, the traveling direction of the grass remover is defined as "front", and the direction opposite to the direction is defined as "back", and on the basis of the definition, the directions are defined as "up" and "down", respectively; the directions of the front and the back are longitudinal direction, and the direction perpendicular to the longitudinal direction is transverse direction.

As shown in fig. 1, 2 and 3, the handheld single-wheel weed extractor of the embodiment of the present invention comprises: the weeding machine comprises a frame 1, wherein a weeding wheel 2 and a weeding wheel protective cover 3 covering the upper part and the rear part of the weeding wheel 2 are arranged at the front part of the frame 1, a power device 41 for driving the weeding wheel 2 to rotate is arranged at the upper part of the frame 1, the power device 41 drives the weeding wheel 2 through a transmission mechanism 42, a handrail device 5 is arranged above the rear part of the frame 1, only one supporting wheel 6 is arranged at the lower part of the frame 1, the supporting wheel 6 is positioned behind the weeding wheel 2, a soil spade 7 with adjustable height is further arranged at the rear part of the frame 1, and the soil spade 7 is positioned behind the supporting wheel 6.

The utility model relates to a hand-held single-wheel weeder, wherein the meaning of a single wheel is as follows: a support wheel 6.

As shown in fig. 4, the weeding wheel 2 comprises: a hub 21, two multi-angular star-shaped connecting plates 22 and a plurality of blades 23. The wheel shaft 21 is transversely arranged, the two multi-angle star-shaped connecting plates 22 are fixed on the wheel shaft 21, the corners of each multi-angle star-shaped connecting plate 22 are outwards turned to form flat plate connecting parts 221, and the two flat plate connecting parts 221 corresponding to the positions of the two multi-angle star-shaped connecting plates 22 are fixed with a blade 23 through threaded fasteners. As the blade 23 is in surface contact with the flat plate connecting part 221, the contact area is large, thereby improving the connecting strength, prolonging the service life of the weeding wheel and being not easy to damage. After long-term use, even if the blade 23 is damaged, the blade 23 can be conveniently replaced by a new blade by loosening the threaded fastener due to the detachable connection between the blade 23 and the flat plate connecting part 221.

The power unit 41 is preferably an engine, preferably a small gasoline engine or a diesel engine, and the transmission mechanism 42 is preferably a belt transmission mechanism. Furthermore, the output end of the belt transmission mechanism is also connected with a speed reducer 43, the speed reducer 43 is preferably arranged inside the weeding wheel protective cover 3, the output end of the speed reducer 43 is connected with the weeding wheel 2, and the speed reducer 43 is preferably in spline connection with the wheel shaft 21 of the weeding wheel 2.

One of the handles 52 is provided with a kill switch 411, and the kill switch 411 is connected to the engine through a kill cable (not specifically shown in the figure); the other armrest handle 52 is provided with a throttle switch 412, and the throttle switch 412 is connected to the engine via a throttle cable (not specifically shown).

As shown in fig. 1, the armrest device 5 includes an armrest frame 51, a front end of the armrest frame 51 is hinged to the frame 1 through a hinge shaft 54, two armrest handles 52 are disposed at a rear end of the armrest frame 51, and an armrest height adjusting device is further disposed between the armrest frame 51 and the frame 1.

Wherein, handrail height adjusting device includes: a handle 551 arranged on one of the handles 52, wherein the handle 551 is connected with one end of the brake cable 552, and the other end of the brake cable 552 is connected with a pin 554; a support base 11 fixed on the frame 1 and a sleeve 12 fixed on the support base 11, wherein a return spring 553 and the pin 554 are arranged in the sleeve 12; an arc plate 53 fixedly arranged at the bottom of the armrest frame 51, and a plurality of positioning holes 531 are arranged on the arc plate 53 at intervals along the arc direction.

In the non-adjustment state, the pin 554 is selectively inserted into one of the positioning holes 531 by the return spring 553, so that the armrest is positioned at a desired height. When the height of the armrest needs to be adjusted, the handle 551 is pressed, the pin 554 is pulled through the brake cable 552, the pin 554 is retracted and separated from the positioning hole 531 by overcoming the acting force of the return spring 553, the armrest frame 51 is rotated by a required angle around the hinge shaft 54, so that the armrest is at a proper height, the handle 551 is released, the return spring 553 is reset, the force is applied to the pin 554, and the pin 554 penetrates through another positioning hole 531, so that the armrest is positioned at a required new height. Through this handrail height-adjusting device, can convenient and fast ground adjust the handrail height, satisfy different height personnel's operation travelling comfort requirement, use adaptability better.

When the hand-held single-wheel weeder provided by the embodiment of the utility model is used for field operation, the hand-held handle 52 is manually held, the engine drives the weeding wheel 2 to rotate to hoe and weed and simultaneously drive the whole machine to move forwards, and only one supporting wheel 6 is arranged behind the weeding wheel 2, so that the whole machine is simple in structure, small in width and narrow in occupied space, can successfully hoe and weed in a narrow-row-spacing farmland, and is not easy to damage crops; because the rear of supporting wheel 6 is provided with height-adjustable's break shovel 7, the soil that supporting wheel 6 moved ahead and pressed can be turned up again through break shovel 7, is favorable to crops to grow.

The foregoing is illustrative of the preferred embodiments of the present invention, and details which have not been given in detail are known in the art, and are not to be construed as limitations on the scope of the utility model except as set forth in the following claims.

Claims

1. Hand-held single-wheel weeder includes: the weeding machine comprises a rack, wherein the front part of the rack is provided with a weeding wheel, the upper part of the rack is provided with a power device for driving the weeding wheel to rotate, and the upper part of the rear part of the rack is provided with an armrest device.

2. The hand-held single-wheel hoeing machine of claim 1, wherein the hoeing wheel includes:

the wheel shaft is transversely arranged;

the two polygonal star-shaped connecting plates are fixed on the wheel shaft, and the corner of each polygonal star-shaped connecting plate is turned outwards to form a flat plate connecting part;

and the two flat plate connecting parts corresponding to the positions of the two polygonal star-shaped connecting plates are fixedly provided with one blade through a threaded fastener.

3. The walk-behind single-wheel hoeing machine of claim 1, wherein the power device includes an engine drivingly connected to the hoeing wheel through a drive mechanism.

4. A walking single-wheel hoeing machine as claimed in claim 3, wherein the engine is a gasoline engine or a diesel engine and the transmission is a belt transmission.

5. A walking single-wheel hoeing machine as claimed in claim 4, wherein the output of the belt drive is connected to a speed reducer, the output of which is connected to the hoeing wheel.

6. The hand-held single-wheel hoeing machine of claim 1, wherein a hoeing wheel guard is provided at the front of the frame, the hoeing wheel guard covering the upper and rear portions of the hoeing wheel.

7. The walking type single-wheel hoeing machine of claim 1, wherein the armrest apparatus includes an armrest frame, a front end of the armrest frame is hinged to the frame, a rear end of the armrest frame is provided with two armrest handles, and an armrest height adjusting device is provided between the armrest frame and the frame.

8. A hand-held single-wheel hoeing machine according to claim 7, wherein the handrail height adjustment means comprises:

the handle is arranged on one of the handrail handles, the handle is connected with one end of the brake cable, and the other end of the brake cable is connected with a pin shaft;

the sleeve is fixed on the rack, and a return spring and the pin shaft are arranged in the sleeve;

the armrest frame comprises an arc-shaped plate, wherein the arc-shaped plate is fixedly arranged at the bottom of the armrest frame, a plurality of positioning holes are formed in the arc-shaped plate along the arc direction, and the pin shaft penetrates through one of the positioning holes.

9. A hand-held single-wheel hoeing machine as claimed in claim 7, wherein one of the hand-held handles is provided with a kill switch which is connected to the power unit by a kill cable; and the other armrest handle is provided with an accelerator switch which is connected with the power device through an accelerator cable.

10. A hand-held single-wheel hoe according to any one of claims 1 to 9, wherein the rear part of the frame is provided with a height-adjustable break shovel located behind the support wheels.