CN214592910U - Hand-held lawn shearing and thinning machine - Google Patents

Abstract

The utility model discloses a novel walking lawn is cut and is dredged machine, cut including driving motor, frame, reduction gear, handrail, fuselage protection frame, reciprocating motion mechanism, lawn and dredges mechanism and running wheel mechanism. The reciprocating mechanism comprises a moving shell, a worm, a fixed support, a swing rod and a worm wheel, the worm of the reciprocating mechanism is fixed at the output shaft end of the speed reducer, and the fixed support is fixed on the shell of the speed reducer; the lawn shearing and thinning mechanism comprises an upper cutter frame, a lower cutter frame, five shearing blades, five combing blades and a connecting rod, wherein the upper cutter frame is fixed on the rack, the shearing blades are fixed on the upper cutter frame, the lower cutter frame is fixedly connected with the moving shell of the reciprocating mechanism through the connecting rod, and the combing blades are fixed on the lower cutter frame; the utility model discloses the frame is light firm, and the hand-held type of being convenient for is operated, produces reciprocating motion through motor drive reciprocating motion mechanism, utilizes reciprocating motion drive lawn to cut and dredges the mechanism, accomplishes the operation of dredging of cutting on the lawn, and the lawn is cut and is dredged the lawn environment that the cutter is removable in order to adapt to different vegetation in the mechanism.

Description

Hand-held lawn shearing and thinning machine

Technical Field

The utility model relates to a lawn maintenance machinery especially relates to a hand-held lawn is cut and is dredged machine.

Background

The lawn is a ubiquitous urban green land, is an important part of human life, and has close relation and important influence on the quality of the human living environment. The maintenance and management cost of the lawn accounts for 60-70% of the total cost of the lawn.

Common lawns often grow too densely in summer, and the volatilization speed of soil moisture is increased due to too dense grass plants in an external high-temperature environment, so that the ground surface soil under the lawns is lack of water and is dry. Therefore, in hot summer, the lawn is too dense, which may cause adverse effect on the lawn, even lead to large-area dry and death of the lawn, and at this time, the lawn needs to be cut and dredged to maintain.

The existing lawn maintenance machines such as a lawnmower, a brush cutter and the like can only complete the cutting operation, namely only cutting the height of the lawn and not changing the density of the lawn. The shearing and thinning operation is to reduce the grass density of the lawn under the condition of ensuring that the height of the lawn is not changed on the whole. The shearing and thinning operation needs to shear part of grass plants in the lawn under the condition of not damaging the whole lawn so as to achieve the effects of reducing the density of the lawn and not changing the height of the lawn.

The lawn maintenance equipment on the market at present can not cut and dredge the lawn of large area, and this operation still needs the manual work to accomplish at present, wastes time and energy, and work efficiency is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the hand-held lawn of proposing is cut and is dredged machine, and this novel lawn is cut and is dredged machine for hand-held, is accomplished by driving motor and cuts the operation of dredging, and the operator only needs hand local control its direction and open and stop can. The utility model discloses can accomplish the lawn mechanically and cut the operation of dredging, through mechanical transmission and motion conversion, become the reciprocal of cutting the mechanism of dredging with driving motor output torque and cut the motion of dredging, use manpower sparingly. The cutting tools of the shearing and thinning mechanism of the lawn mower can be replaced so as to meet various lawn environments and operation requirements. The whole machine has stable, reliable and light structure and high shearing and thinning efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a hand-held lawn is cut and is dredged machine, includes driving motor, frame, reduction gear, handrail, reciprocating motion mechanism, cuts and dredges mechanism and running wheel mechanism, driving motor is fixed in the frame upper surface, driving motor output shaft downwards with retarder connection, the frame includes frame body and reducer seat, the reduction gear is fixed in frame surface below on the reducer seat, the input shaft of reduction gear with driving motor output shaft, the output shaft of reduction gear with reciprocating motion mechanism connects, the handrail is fixed in on the both sides frame at frame rear portion, reciprocating motion mechanism includes motion casing, worm, fixing support, pendulum rod and worm wheel, and reciprocating motion mechanism's worm is fixed in the output axle head of reduction gear, fixing support is fixed in on the reducer shell, cut and dredged the mechanism and include top rest, go up the rest, the mechanism of loosing, The upper knife rest is fixed on the rack, the shear blades are fixed on the upper knife rest, the lower knife rest is fixedly connected with a moving shell of the reciprocating mechanism through the connecting rod, the comb blades are fixed on the lower knife rest, and the travelling wheel mechanism is fixed on the frame bodies on two sides of the rack.

Furthermore, the output shaft of the driving motor is vertically downward and fixed with the input shaft of the speed reducer through a shaft sleeve, the output shaft of the speed reducer is fixed with the worm of the reciprocating mechanism through the shaft sleeve, the worm wheel is fixed on the moving shell in a matched mode through a boss, the fixed support is fixed on the shell of the speed reducer through a bolt, one end of the oscillating bar is connected with the fixed support through a hinge, and the other end of the oscillating bar is connected with the worm wheel through a hinge. When the worm wheel rotates, the swing rod is driven to swing around the fixed support hinge. When the swing rod swings, the swing rod is connected with the hinge of the worm wheel to drive the worm wheel to do reciprocating translational motion relative to the fixed support. The worm gear makes reciprocating translation motion to drive the moving shell to make reciprocating translation motion relative to the fixed support.

Further, cut the top rest of sparse mechanism with the frame is fixed mutually, the scissors sword through holding screw connection equidistance arrange in the lower surface of top rest, the bottom rest passes through connecting rod parallel arrangement and is in under the top rest, the frame of bottom rest position department both sides is opened there is the rectangular hole, the comb sword is through holding screw connection equidistance arrangement in the upper surface of bottom rest.

Furthermore, the shear blade is a left-right double-blade cutter, the comb blade is a tooth-shaped blade, no blade is formed between teeth of the comb blade, and the comb blade is formed.

Further, still be equipped with the fuselage protection frame, the fuselage protection frame includes leading protection frame and side protection frame, and leading protection frame is fixed in frame upper surface front portion, and side protection frame is fixed in frame both sides surface.

Further, the comb blades and the shear blades are the same in number, and the number of the shear blades is at least three.

Further, the walking wheel mechanism comprises walking wheel seats, walking wheel cross frames and walking wheels on the left side and the right side, the walking wheels are fixed in the walking wheel seats through bolt connection, the walking wheel cross frames are fixedly connected between the left walking wheel seat and the right walking wheel seat, and the walking wheel seats are fixed on the two sides of the frame and the two ends of the upper tool rest.

Further, the length of the lower tool rest is smaller than that of the upper tool rest.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a driving motor comes to cut for the lawn of complete machine and dredges the operation and provide power, decides the gear ratio through reduction gear and reciprocating motion mechanism's two-stage and slows down, with the high rotational speed of driving motor power supply output, the rotary motion of low torque, turns into the reciprocal grass cutting motion of high moment, the low frequency of cutting the cutter in the mechanism of dredging. The grass cutting movement with high moment makes the machine easier to cut the grass roots and the grass leaves short, and ensures the high quality and high efficiency of the grass cutting work. During operation, an operator only needs to control the forward movement and the turning of the machine by holding the machine with hands, so that a great deal of manpower and time are saved.

(2) The utility model discloses when the lawn is cut and is dredged the operation, can be through adjusting driving motor's voltage, and realize the stepless speed regulation of motor output shaft. After the speed is reduced by two stages of fixed transmission ratios, the speed of the reciprocating grass cutting movement of the cutter can be adjusted in a stepless manner so as to adapt to various lawn environments and grass types.

(3) The utility model discloses an in cutting sparse mechanism, the cutting edge of top rest is about twolip cutter for dial out the grass clump, cut off the grass leaf. The comb blade of the lower knife rest is a tooth-shaped blade, the blade is not formed between the teeth, the comb teeth are formed, the grass gathering blades are formed between the teeth, and the comb teeth are used for cutting the grass blades. Because the edges between the teeth of the comb blade are not edged, the cutting blade and the comb blade are opened and closed once, only grass blades at the comb teeth can be cut, and grass blades between the teeth are not affected, so that the efficient cutting and thinning operation is completed. And through adjusting the number of teeth of the combing edge, the density of the lawn after the shearing and thinning operation can be changed, the lawn density is smaller as the number of teeth of the combing edge is larger, and the lawn density is smaller.

(4) The utility model discloses an in cutting sparse mechanism, the cutter on the upper and lower knife rest is fixed through holding screw mode, convenient to detach and change, and other types's cutter is changed on the knife rest to the accessible dismantlement screw to accomplish multiple different operations. The upper knife rest and the lower knife rest are replaced by the cutting edges, so that the lawn cutting operation can be completed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the reducer of the present invention;

fig. 3 is a schematic bottom view of the reciprocating mechanism of the present invention;

FIG. 4 is a schematic structural diagram of the state A of the shearing and thinning mechanism of the present invention;

FIG. 5 is a schematic structural diagram of the shearing and thinning mechanism of the present invention in state B;

fig. 6 is a schematic view of the travelling wheel mechanism of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, which should not be construed as limiting the scope of the invention. For convenience of explanation and understanding of the technical solutions of the present invention, the following descriptions are made with reference to the accompanying drawings.

Referring to fig. 1 to 6, a novel walking lawn mower comprises a driving motor 1, a frame 2, a speed reducer 3, a handrail 4, a machine body protection frame 5, a reciprocating mechanism 6, a mowing mechanism 7 and a traveling wheel mechanism 8. The driving motor 1 is fixed on the upper surface of the frame 2, and the output shaft of the driving motor 1 is downwards connected with the speed reducer 3. The frame comprises a frame body 2-1 and a speed reducer seat 2-2. The speed reducer 3 is fixed on a speed reducer seat 2-2 below the surface of the rack 2, an input shaft of the speed reducer 3 is connected with an output shaft of the driving motor 1, and the output shaft is connected with the reciprocating mechanism 6. The handrails 4 are fixed on the frame bodies 2-1 at the two sides of the rear part of the frame 2. The fuselage protection frame 5 comprises a front protection frame 5-1 and side protection frames 5-2, the front protection frame 5-1 is fixed on the front part of the upper surface of the frame 2, and the side protection frames 5-2 are fixed on the two side surfaces of the frame 2. The reciprocating mechanism 6 comprises a moving shell 6-1, a worm 6-2, a fixed support 6-3, a swing rod 6-4 and a worm wheel 6-5, the worm 6-2 of the reciprocating mechanism 6 is fixed at the output shaft end of the speed reducer 3, and the fixed support 6-3 is fixed on the shell of the speed reducer 3. The shearing and thinning mechanism 7 comprises an upper knife rest 7-1, a lower knife rest 7-2, shear blades 7-3, comb blades 7-4 and connecting rods 7-5, the number of the shear blades 7-3 is the same as that of the comb blades 7-5, the upper knife rest 7-1 is fixed on the machine frame 2, the five shear blades 7-3 are fixed on the upper knife rest 7-1, the lower knife rest 7-2 is fixedly connected with a moving shell 6-1 of the reciprocating mechanism 6 through the connecting rods 7-5, and the five comb blades 7-4 are fixed on the lower knife rest 7-2. The walking wheel mechanism 8 comprises a walking wheel seat 8-1, a walking wheel cross frame 8-2 and walking wheels 8-3 on the left side and the right side respectively.

Referring to fig. 2, in the walking lawn mower, an output shaft of the driving motor 1 is vertically downward and fixed with an input shaft of the speed reducer 3. The base of the speed reducer 3 is fixed with the speed reducer seat 2-2 of the rack through four bolts, and the speed reducer 3 is integrally placed on the speed reducer seat 2-2. The speed reducer seat 2-2 is fixed below the upper surface of the frame body 2-1 of the frame 2 through welding. And the worm 6-2 of the reciprocating mechanism 6 is connected with an output shaft of the speed reducer 3 through a shaft sleeve. The reducer 3 can be any input and output non-coaxial reducer, and is selected according to actual transmission ratio requirements. Referring to fig. 3, after the worm 6-2 of the reciprocating mechanism 6 rotates, the worm wheel 6-5 in the moving housing 6-1 is driven to rotate at a fixed reduction transmission ratio, and the worm wheel 6-5 is fixed on a boss inside the moving housing 6-1. The fixed support 6-3 of the reciprocating mechanism 6 is fixed on the shell of the speed reducer 3 through a bolt, one end of the swing rod 6-4 is connected with the fixed support 6-3 through a hinge, and the other end of the swing rod is connected with the worm wheel 6-5 through a hinge. When the worm wheel 6-5 rotates, the swing rod 6-4 is driven to swing around the hinge of the fixed support 6-3. When the swing rod 6-4 swings, the worm wheel 6-5 is driven to do reciprocating translational motion relative to the fixed support 6-3 through the hinge connection with the worm wheel 6-5. The worm wheel 6-5 makes reciprocating translation motion to drive the moving shell 6-1 to make reciprocating translation motion relative to the fixed support 6-3.

Referring to fig. 4 and 5, the upper tool holder 7-1 of the shearing and thinning mechanism 7 is fixed with the frame 2 by welding, the five shearing blades 7-3 are equidistantly arranged on the lower surface 7-1 of the upper tool holder by a set screw connection, and the five comb blades 7-4 are equidistantly arranged on the upper surface of the lower tool holder 7-2 by a set screw connection. The lower tool rest 7-2 is fixed with the moving shell 6-1 of the reciprocating mechanism 6 through a connecting rod 7-5, the lower tool rest 7-2 is fixed with one end of the connecting rod 7-5 in a welding mode, and the other end of the connecting rod 7-5 is fixed with the moving shell 6-1 of the reciprocating mechanism 6 in a welding mode. The lower tool rest 7-2 is arranged in parallel under the upper tool rest 7-1 through a connecting rod 7-5, rectangular holes are formed in the machine frame 2 on two sides of the position of the lower tool rest 7-2, the lower tool rest 7-2 can move in a left-right translation mode along with the movement of the movement shell 6-1 of the reciprocating mechanism, and the lower tool rest 7-2 can move in a left-right translation mode through the rectangular holes of the machine frame 2 under the upper tool rest 7-2. The lower tool post 7-2 is shorter than the upper tool post 7-1, and in two limit positions, the lower tool post 7-2 is respectively aligned with the left side and the right side of the upper tool post 7-1. In the state A, when the pair of the shear blades 7-3 and the comb blade 7-4 are completely engaged, the lower blade holder 7-2 is aligned with the left side of the upper blade holder 7-1. In the state B, when the pair of shear blades 7-3 and the comb blade 7-4 are fully opened, the lower blade holder 7-2 is aligned with the right side of the upper blade holder 7-1. The cutting edge 7-3 is a left-right double-edge cutter, the comb edge 7-4 is a tooth-shaped edge, the gaps between the teeth of the comb edge 7-4 are not edged, the teeth are edged, the gaps between the teeth are used for gathering grass blades, and the teeth are used for cutting the grass blades. Because the edges between the teeth of the comb blade are not edged, the cutting blade and the comb blade are opened and closed once, only grass blades at the comb teeth can be cut, and grass blades between the teeth are not affected, so that the efficient cutting and thinning operation is completed. And through adjusting the number of teeth of the combing edge, the density of the lawn after the shearing and thinning operation can be changed, the lawn density is smaller as the number of teeth of the combing edge is larger, and the lawn density is smaller.

Referring to fig. 6, the road wheels 8-2 of the road wheel mechanism 8 are fixed in the road wheel base 8-1 through bolt connection. The left walking wheel seat 8-1 and the right walking wheel seat 8-1 are fixedly connected by welding through a walking wheel cross frame 8-3. The walking wheel seat 8-1 is fixed with the frame 2 and the upper tool rest 7-1 through welding.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made without departing from the spirit and scope of the present invention.

Claims (8)

1. A hand-held lawn mower is characterized in that: the shearing and dredging mechanism comprises a driving motor, a rack, a speed reducer, a handrail, a reciprocating motion mechanism, a shearing and dredging mechanism and a walking wheel mechanism, wherein the driving motor is fixed on the upper surface of the rack, an output shaft of the driving motor is downwards connected with the speed reducer, the rack comprises a rack body and a speed reducer seat, the speed reducer is fixed on the speed reducer seat below the surface of the rack, an input shaft of the speed reducer is connected with an output shaft of the driving motor, an output shaft of the speed reducer is connected with the reciprocating motion mechanism, the handrail is fixed on two side frames at the rear part of the rack, the reciprocating motion mechanism comprises a motion shell, a worm, a fixed support, a swing rod and a worm wheel, the worm of the reciprocating motion mechanism is fixed at an output shaft end of the speed reducer, the fixed support is fixed on a shell of the speed reducer, the shearing and dredging mechanism comprises an upper tool rest, a lower tool rest, shearing blades, comb blades and connecting rods, the upper knife rest is fixed on the rack, the shear blades are fixed on the upper knife rest, the lower knife rest is fixedly connected with the moving shell of the reciprocating mechanism through the connecting rod, the comb blades are fixed on the lower knife rest, and the travelling wheel mechanisms are fixed on the rack bodies on two sides of the rack.

2. A walking lawn mower as claimed in claim 1, wherein: the output shaft of the driving motor is vertically downward and fixed with the input shaft of the speed reducer through a shaft sleeve, the output shaft of the speed reducer is fixed with the worm of the reciprocating motion mechanism through the shaft sleeve, the worm wheel is fixed on the motion shell in a matched mode through a boss, the fixed support is fixed on the shell of the speed reducer through a bolt, one end of the oscillating bar is connected with the fixed support through a hinge, and the other end of the oscillating bar is connected with the worm wheel through a hinge.

3. A walking lawn mower as claimed in claim 1, wherein: cut the top rest of dredging the mechanism with the frame is fixed mutually, the cutting edge through holding screw connection equidistance arrange in the lower surface of top rest, the bottom rest passes through connecting rod parallel arrangement under the top rest, the frame of bottom rest position department both sides is opened there is the rectangular hole, the comb sword passes through holding screw connection equidistance and arranges in the upper surface of bottom rest.

4. A walking lawn mower as claimed in claim 1, wherein: the cutting edge is a left-right double-edge cutter, the comb edge is a tooth-shaped edge, no edge is formed between teeth of the comb edge, and the comb tooth is edged.

5. A walking lawn mower as claimed in claim 1, wherein: the machine body protection frame comprises a front protection frame and side protection frames, the front protection frame is fixed on the front portion of the upper surface of the machine frame, and the side protection frames are fixed on the surfaces of the two sides of the machine frame.

6. A walking lawn mower as claimed in claim 1, wherein: the comb edges and the shear edges are the same in number, and the number of the shear edges is at least three.

7. A walking lawn mower as claimed in claim 1, wherein: the walking wheel mechanism comprises walking wheel seats, walking wheel cross frames and walking wheels on the left side and the right side, the walking wheels are fixed in the walking wheel seats through bolt connection, the left walking wheel seat and the right walking wheel seat are fixedly connected through the walking wheel cross frames, and the walking wheel seats are fixed on the two sides of the frame and the two ends of the upper tool rest.

8. A walking lawn mower as claimed in claim 1, wherein: the length of the lower tool rest is smaller than that of the upper tool rest.

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