CN208462375U - A kind of vegetation cutting machine - Google Patents

Abstract

The utility model discloses a kind of vegetation cutting machines, it is related to a kind of technical field of garden, including rack, blade and motor for driving blade rotation, it is provided with lifting assembly on the rack, lifting assembly includes the positioning tooth bar that sliding is connected in rack and the positioning gear being engaged in positioning tooth bar, motor is arranged in positioning tooth bar, it is additionally provided in rack for driving the rotation of positioning tooth wheel with the driving assembly for driving positioning tooth bar to go up and down, the part that rack is contacted with positioning tooth bar is provided with the limit assembly for preventing positioning tooth bar from slipping from rack.By being provided with lifting assembly and driving assembly for controlling blade and ground distance on the rack, the distance of blade to ground then can control, so that the place for being suitable for requiring vegetation lawn height, reaches the lawn for trimming out different height.

Description

A kind of vegetation cutting machine

Technical field

The utility model relates to a kind of technical field of garden, more specifically, it relates to a kind of vegetation cutting machine.

Background technique

Currently, grass trimmer is also known as weeder, grass mower, lawn mower etc..Grass trimmer is a kind of for cutting the grass on a lawn, planting The machine tool waited, it is made of cutterhead, engine, traveling wheel, walking mechanism, blade, handrail and control section.Cutterhead On traveling wheel, engine is housed on cutterhead, blade is housed on the output shaft of engine, blade is revolved using the high speed of engine Turn to improve much in terms of speed, saves the activity duration of weeding worker, reduce a large amount of human resources.

Chinese patent if notification number is CN207054107U discloses a kind of gardens grass trimmer, includes rack, in machine Frame bottom is provided with tire, the rear portion of rack is provided with pushing hands, pushing hands is upwardly extended by rack inclining, is supported on the rack Motor is fixed with transmission device in the front of motor, the fixed main shaft in transmission device, and transmission device is driven by motor and turns It is dynamic, then main axis is driven by transmission device, it is arranged with grass cutting action head in front-end of spindle, is fixed in the bottom of grass cutting action head Blade, the bevel gear set structure that can drive blade rotation is provided in grass cutting action head.Utilize hand propelled handle, Ke Yiren It anticipates direction of rotation, when work does not need very high labor intensity.

But in above-mentioned documents, the position of blade from the ground be it is fixed, be unable to control cut vegetation grass Level ground height, so that the grass trimmer in above-mentioned documents can not expire when in face of the place that some pairs of vegetation lawn height require Foot requires.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of vegetation cutting machine, by The lifting assembly for controlling blade and ground distance and the driving assembly for driving lifting assembly to go up and down are provided in rack, Then it can control the distance of blade to ground, so that the place for being suitable for requiring vegetation lawn height, reaches and trim out The lawn of different height.

To achieve the above object, the utility model provides following technical solution:

A kind of vegetation cutting machine, including rack, blade and motor for driving the blade rotation, in the rack On be provided with lifting assembly, the lifting assembly includes the positioning tooth bar and be engaged in the positioning tooth that sliding is connected in rack Positioning gear on item, the motor are arranged in the positioning tooth bar, and it is described fixed for driving to be additionally provided in the rack Driving assembly of the position gear rotation to drive the positioning tooth bar to go up and down, in the part that the rack is contacted with the positioning tooth bar It is provided with the limit assembly for preventing the positioning tooth bar from slipping from the rack.

Determined by using above-mentioned technical proposal when driving positioning tooth wheel to rotate in use, first passing through driving assembly with driving Position gear rack elevating drives motor and blade lifting；After positioning, start motor, motor-driven blade rotation, to start Lawn vegetation is cut；It is reduced to lowest point from the ground in positioning tooth bar, by limit assembly, prevents positioning tooth bar and institute It states rack slippage and causes cutting vegetation failure；By the adjusting to blade to distance between ground, so that the utility model is applicable in In the place required to vegetation lawn height, to trim out the lawn of different height.

Further, rotation is provided with tire axis in the rack, and the driving component includes being set to the tire First gear, the drive rod being rotatably dispose in the rack on axis and the second tooth being fixedly installed on the drive rod Wheel is provided on the drive rod and the rack and is axially moveable for controlling the drive rod to drive second tooth Take turns the positioning component engaged with the first gear, the one end of the drive rod far from the second gear and the positioning gear Axle center be fixedly connected, the locking assembly for limiting positioning tooth wheel rotation is additionally provided on the drive rod.

The rotation of tire axis is driven with the rotation of tire by using above-mentioned technical proposal, drives first gear rotation, Second gear rotation is driven, the rotation of positioning tooth wheel is driven, drives positioning tooth bar lifting, motor and blade lifting is driven, works as blade After height adjustment from the ground, logical locking assembly will be driven rod locking, prevent drive rod rotation and the axial direction along drive rod It is mobile, then make the positioning tooth bar for regulating height keep corresponding height；By above-mentioned setting, so that by manually pushing away The distance between blade and ground can be adjusted in vehicle, and structure is simple, time saving and energy saving.

Further, the positioning component includes rotation and is connected in the adapting rod on the drive rod, setting along axial direction In the control-rod on the adapting rod and be set to the rack side for for the control-rod slide sliding slot, the machine It offers and is connected to the sliding slot and orthogonal card slot on frame, it is described when the control-rod slides into the card slot Second gear and first gear engagement.

By using above-mentioned technical proposal, when adjusting the distance between blade and ground, controlled by the way that staff is mobile Bar processed, is clamped so that control-rod slides into card slot from sliding slot, and adapting rod and drive rod are with the movement of control-rod and towards the The direction of one gear is mobile, and the mobile drive second gear of final drive rod is engaged with first gear；Since control-rod slides into Clamping in card slot, so first gear and second gear keep meshing state.

Further, the locking assembly includes the latch segment being fixedly installed on the adapting rod, the control-rod court To one end of the adapting rod pass through the latch segment and the adapting rod and with the drive rod it is inconsistent, the control-rod with The latch segment is threadedly coupled.

Control-rod is screwed into lock after the distance between blade and ground are adjusted by using above-mentioned technical proposal In tight block, after passing through latch segment, continue to twist control-rod to the direction of drive rod, until control-rod and drive rod push against, control Bar also limits the axial movement of drive rod itself while limiting drive rod rotation when pushing against drive rod, to realize lock Tight effect；So that drive rod not will drive the rotation of positioning tooth wheel after the completion of the height adjustment of positioning tooth bar, the height regulated is prevented Degree arbitrarily changes.

Further, reset assembly is additionally provided in the rack, the reset assembly includes being fixedly installed in rack Baffle plate and the reset spring that is sheathed on the drive rod, the reset spring contact at the baffle plate and the switching Between bar.

By using above-mentioned technical proposal, when adjusting the height of positioning tooth bar, by the mobile control-rod of staff, make Control-rod is obtained to slide in sliding slot, so that it is mobile to drive adapting rod, so that drive rod is moved with the movement of adapting rod, until Control-rod, is stuck in card slot, control-rod is caught in the process of card slot i.e. from sliding slot by first gear and second gear engagement after engagement It is the process of compression reseting spring；When positioning tooth bar adjust after, after control-rod is skidded off card slot by staff, adapting rod by Elastic force to reset spring acts on, so that the direction for driving adapting rod and control-rod to be directed away from second gear is slided, so that The direction that drive rod is directed away from second gear is mobile, and second gear and first gear is driven to disengage；By the way that reset assembly is arranged, So that after control-rod skids off in card slot to sliding slot, adapting rod is by reset spring after the height adjustment to positioning tooth bar Elastic force may make second gear and first gear to disengage so that the height of blade will not when the rotation of subsequent tyre axis It changes, structure is simple, time saving and energy saving.

Further, the limit assembly includes the limiting slot being opened in the positioning tooth bar and is fixed in rack Limited block, the limited block slide in the limiting slot.

By using above-mentioned technical proposal, when positioning tooth bar slides relative to rack to be gone up and down, limited block is also in limiting slot Interior sliding, after the top of limited block and the limiting slot pushes against, positioning tooth bar is nearest from the ground, and the distance of blade from the ground is most Closely, at this time since limiting slot and limited block push against, so preventing positioning tooth bar from falling off from rack.

Further, grass cutting action head is fixedly installed on the output shaft of the motor, the grass cutting action head is separate Described motor output shaft one end is welded with several blades.

Several blades can be driven by the same motor by the multiple blades of welding by using above-mentioned technical proposal, Then mowing efficiency can be further improved, grass cutting action head uniform force is advantageously allowed while improving efficiency, is mentioned The service life of high grass cutting action head.

Further, the rack is provided with pushing hands portion close to the direction of tire axis, and the pushing hands portion is by the rack court Extension is tilted upward to the direction far from the tire axis.

By using above-mentioned technical proposal, when utility model works, pushing hands portion is held by manpower, pushes machine Frame movement, setting pushing hands portion and the direction for being directed away from tire axis tilt upward extension, are conducive to people and exert a force, and can save Physical strength.

Compared with prior art, the advantages of the utility model and beneficial effect is:

1, the rotation of positioning tooth wheel is driven by driving assembly, then drives positioning tooth bar lifting, realized to blade to ground The adjusting of distance between face, so that the utility model can be suitably used for the place required to vegetation lawn height, to trim out The lawn of different height；

2, when blade to ground distance adjust after the completion of, after control-rod is skidded off card slot by staff, adapting rod by The elastic force of reset spring acts on, so that adapting rod and control-rod be driven to be directed away from the direction sliding of second gear, drives the Two gears and first gear disengage；So that the height of blade will not change when subsequent tyre axis rotates, structure is simple, It is time saving and energy saving；

3, by welding multiple blades, several blades can be driven by the same motor, then can further mentioned High mowing efficiency advantageously allows grass cutting action head uniform force while improving efficiency, and improves the use of grass cutting action head Service life；

4, pushing hands portion is held by manpower, pushes gantry motion, pushing hands portion is set and is directed away from the direction of tire axis Extension is tilted upward, is conducive to people and exerts a force, and physical strength can be saved.

Detailed description of the invention

Fig. 1 is the bottom substance schematic diagram of the utility model vegetation cutting machine；

Fig. 2 is the enlarged drawing of location A in Fig. 1；

Fig. 3 is the structural schematic diagram of the utility model vegetation cutting machine；

Fig. 4 is the enlarged drawing of B location in Fig. 3；

Sectional view when Fig. 5 is control-rod and drive rod abutting.

Appended drawing reference:

1, rack；2, motor；3, blade；4, tire axis；5, tire；6, pushing hands portion；7, first through hole；8, lifting assembly； 81, positioning tooth bar；82, gear is positioned；9, limit assembly；91, limiting slot；92, limited block；10, driving assembly；101, the first tooth Wheel；102, second gear；103, drive rod；11, positioning component；111, adapting rod；112, control-rod；113, sliding slot；114, block Slot；12, raised；13, annular groove；14, latch segment；15, reset assembly；151, baffle plate；152, reset spring；16, it mows Work head.

Specific embodiment

With reference to the accompanying drawings and examples, the utility model is described in detail.Wherein identical components are with identical Appended drawing reference indicate

Specific embodiment:

Referring to Figures 1 and 2, a kind of vegetation cutting machine, including rack 1, motor 2 and blade 3, blade 3 and the setting of motor 2 exist 1 lower end of rack.Rotation is equipped with tire axis 4 in two end side surfaces of rack 1, and the both ends of tire axis 4 are provided with tire 5.It is taking turns Pushing hands portion 6 is fixedly installed in the rack 1 of 4 side of tire axis, pushing hands portion 6 tilts upward extension by rack 1.

Referring to Fig. 3, be provided with driving assembly 10 on tire axis 4 and rack 1, driving assembly 10 include first gear 101, Second gear 102 and drive rod 103, first gear 101 and tire axis 4 are keyed, and first gear 101 is located in rack 1； One end of drive rod 103 and rack 1 are rotatablely connected, and the axle center of the other end and second gear 102 is keyed；With drive rod 103 It moves back and forth, second gear 102 is moved as drive rod 103 is mobile, thus to switch second gear 102 and first gear 101 meshing states and disengaged condition.

Referring to Fig. 4, first through hole 7 is offered in rack 1, on the side wall of first through hole 7 and is provided with liter in rack 1 It comes down to a lower group part 8.Limit assembly 9 is provided on the side wall and lifting assembly 8 of first through hole 7.

Referring to Fig. 3 and Fig. 4, lifting assembly 8 includes positioning tooth bar 81 and positioning gear 82；Limit assembly 9 includes limiting slot 91 and limited block 92；Side setting of the positioning tooth bar 81 far from 7 side wall of first through hole is with teeth, and limiting slot 91 is provided with positioning tooth bar 81 close to the side of 7 side wall of first through hole；Limited block 92 is welded on first through hole 7 close to the side of limiting slot 91, limited block 92 Slid in limiting slot 91, positioning tooth bar 81 and positioning gear 82 engage always, drive rod 103 far from second gear 102 one End and the axle center of positioning gear 82 are keyed.

The middle position of drive rod 103 is provided with positioning component 11 referring to Fig. 3 and Fig. 5, positioning component 11 includes turning Extension bar 111, control-rod 112, sliding slot 113 and card slot 114；Adapting rod 111 is set on drive rod 103, the inner wall of adapting rod 111 Integrated setting has protrusion 12, and offering on drive rod 103 towards the surface of drive rod 103 can be recessed with the annular of 12 clamping of protrusion Slot 13, protrusion 12 can be rotated along annular groove 13.

Referring to Fig. 3, it is connected to latch segment 14 in 111 outside weld of adapting rod, is offered in latch segment 14 through latch segment 14 Threaded hole, and position opposite with threaded hole on adapting rod 111 offers the second through-hole；The threaded one end of control-rod 112 connects It is connected in the threaded hole on latch segment 14 and passes through the second through-hole on adapting rod 111 and the conflict of drive rod 103；Rack 1 is leaned on The side of nearly control-rod 112 offers sliding slot 113, in sliding slot 113 on the bottom wall of first gear 101 vertically rack 1 Bottom offers card slot 114；Control-rod 112 extends to the side of rack 1, and control-rod 112 far from one end of latch segment 14 It slides and is caught in card slot 114 in sliding slot 113.

When adjusting the height between positioning tooth bar 81 and ground, first turn control-rod 112 so that control-rod 112 not with biography After lever 103 contacts, then it is mobile towards the direction of first gear 101 by external force drive control-rod 112, so that second gear 102 and first gear 101 engage；When control-rod 112 is mobile towards the direction of first gear 101, control-rod 112 is in cunning It moves, is moved to always when being connected in card slot 114 in slot 113, first gear 101 and second gear 102 engage, so that not having There is second gear 102 in the case where external force to be always maintained at and the engagement of first gear 101.

By external force control-rod 112 is slided in sliding slot 113 after adjusting out of card slot 114, slides to cunning always The one end of slot 113 far from card slot 114, second gear 102 and first gear 101 are detached from this time, are then turned control-rod 112, are made It obtains control-rod 112 and drive rod 103 pushes against, to lock drive rod 103, prevent from rotating due to drive rod 103 so that positioning tooth 82 rotation of wheel, then stationary positioned gear 82, avoids positioning tooth bar 81 from moving up and down.

Referring to Fig. 3, reset assembly 15 is provided in rack 1, reset assembly 15 includes baffle plate 151 and reset spring 152, baffle plate 151 is fixed on the side wall of rack 1 along its length, and is located at second gear 102 and adapting rod 111 Between, baffle plate 151 and drive rod 103 are rotatablely connected；Reset spring 152 is socketed on drive rod 103 and is located at baffle plate On part between 151 and adapting rod 111, the both ends of reset spring 152 are inconsistent with baffle plate 151 and adapting rod 111 respectively, When control-rod 112 slides onto end of the sliding slot 113 far from card slot 114, reset spring 152 is nature, and works as control-rod 112 when being connected in card slot 114, and reset spring 152 is compressive state.

Referring to Fig. 2, in the bottom of rack 1, positioning tooth bar 81 is fixedly installed motor 2 close to the side of 1 bottom of rack, It is fixedly installed grass cutting action head 16 on the output shaft of motor 2, is welded on side of the grass cutting action head 16 far from 2 side of motor There are several blades 3.

Specific implementation process:

When need to adjust blade 3 from the ground apart from when, adjust control-rod 112 so that control-rod 112 is connected to card slot In 114, control-rod 112 is then turned, so that control-rod 112 is not contacted with drive rod 103；Second gear 102 and first at this time Gear 101 engages, and then pushes the utility model by external force, drives tire axis 4 to rotate when tire 5 rotates, and drives First gear 101 rotates, and second gear 102 is driven to rotate, and drive rod 103 is driven to rotate, and drives positioning gear 82 to rotate, drives Positioning tooth bar 81 is gone up and down, and motor 2 is driven to go up and down, and grass cutting action head 16 is driven to go up and down, and drives the knife on 16 bottom end of grass cutting action head Piece 3 is gone up and down.

After the position of blade 3 is adjusted, control-rod 112 is turned, so that control-rod 112 and drive rod 103 are inconsistent, And then locking drive rod 103 skids off control-rod 112 in card slot 114 to sliding slot 113, adapting rod 111 is resetted later The elastic force of spring 152, so that the direction for driving drive rod 103 to be directed away from first gear 101 moves.

First gear 101 and second gear when control-rod 112 slides onto the end far from card slot 114 in sliding slot 113 102 are detached from, and then start motor 2, and motor 2 drives grass cutting action head 16 to rotate, and then blade 3 are driven to rotate, then work people Member pushes the utility model to mow by pushing hands portion 6, and motor 2 is closed after grass cutting action.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (8)

1. a kind of vegetation cutting machine, including rack (1), blade (3) and motor (2) for driving the blade (3) to rotate, It is characterized in that, being provided with lifting assembly (8) on the rack (1), the lifting assembly (8) includes that sliding is connected to rack (1) positioning tooth bar (81) on and the positioning gear (82) being engaged on the positioning tooth bar (81), motor (2) setting exist On the positioning tooth bar (81), it is additionally provided on the rack (1) for driving positioning gear (82) rotation to drive The driving assembly (10) for stating positioning tooth bar (81) lifting, sets in the part that the rack (1) is contacted with the positioning tooth bar (81) It is equipped with the limit assembly (9) for preventing the positioning tooth bar (81) from slipping from the rack (1).

2. vegetation cutting machine according to claim 1, which is characterized in that rotation is provided with tire on the rack (1) Axis (4), the driving component (10) include the first gear (101) being set on the tire axis (4), be rotatably dispose in it is described Drive rod (103) in rack (1) and the second gear (102) being fixedly installed on the drive rod (103), in the biography It is provided in lever (103) and the rack (1) and is axially moveable for controlling the drive rod (103) to drive described second The positioning component (11) that gear (102) is engaged with the first gear (101), the drive rod (103) is far from second tooth The one end for taking turns (102) is fixedly connected with the axle center of positioning gear (82), is additionally provided with limitation on the drive rod (103) The locking assembly of positioning gear (82) rotation.

3. vegetation cutting machine according to claim 2, which is characterized in that the positioning component (11) includes rotating and along axis To the adapting rod (111) being connected on the drive rod (103), the control-rod (112) being set on the adapting rod (111) with And be set to the rack (1) side for supply the control-rod (112) sliding slot (113) for sliding, open up on the rack (1) Have and be connected to the sliding slot (113) and orthogonal card slot (114), when the control-rod (112) slides into the card slot (114) when interior, the second gear (102) and the first gear (101) engagement.

4. vegetation cutting machine according to claim 3, which is characterized in that the locking assembly is described including being fixedly installed on Latch segment (14) on adapting rod (111), the control-rod (112) pass through the lock towards one end of the adapting rod (111) Tight block (14) and the adapting rod (111) and, the control-rod (112) and the locking inconsistent with the drive rod (103) Block (14) is threadedly coupled.

5. vegetation cutting machine according to claim 4, which is characterized in that be additionally provided with reset assembly on the rack (1) (15), the reset assembly (15) includes the baffle plate (151) being fixedly installed on rack (1) and is sheathed on the drive rod (103) reset spring (152) on, the reset spring (152) contact at the baffle plate (151) and the adapting rod (111) between.

6. vegetation cutting machine according to claim 2, which is characterized in that the limit assembly (9) is described including being opened in Limiting slot (91) in positioning tooth bar (81) and the limited block (92) being fixed on rack (1), the limited block (92) is described Sliding in limiting slot (91).

7. vegetation cutting machine according to claim 6, which is characterized in that fixation is set on the output shaft of the motor (2) It is equipped with grass cutting action head (16), the grass cutting action head (16) is welded with several blades far from the motor (2) output shaft one end (3)。

8. vegetation cutting machine according to claim 1, which is characterized in that direction of the rack (1) close to tire axis (4) It is provided with pushing hands portion (6), the pushing hands portion (6) is tilted upward by the direction that the rack (1) is directed away from the tire axis (4) Extend.