CN112772180A

CN112772180A - Plant trimming device

Info

Publication number: CN112772180A
Application number: CN202110058202.1A
Authority: CN
Inventors: 王正荣; 袁小霞; 袁永芳
Original assignee: Chongqing De'an Landscape Engineering Co ltd
Current assignee: Chongqing De'an Landscape Engineering Co ltd
Priority date: 2021-01-16
Filing date: 2021-01-16
Publication date: 2021-05-11
Anticipated expiration: 2041-01-16
Also published as: CN112772180B

Abstract

The invention discloses a plant trimming device, which belongs to the technical field of garden engineering equipment and comprises a vehicle body, wherein four supporting legs are arranged at the bottom of the vehicle body, rollers are arranged at the bottoms of the supporting legs, a power mechanism is arranged on the vehicle body, a trimming mechanism is arranged at the bottom of the vehicle body, the power mechanism is connected with the trimming mechanism and used for providing power for the trimming mechanism, and two trimming units, a reversing mechanism and a reciprocating mechanism are also arranged in the trimming mechanism.

Description

Plant trimming device

Technical Field

The invention belongs to the technical field of garden engineering equipment, and particularly relates to a plant trimming device.

Background

Landscaping is an aesthetic natural environment and rest area created by applying engineering technology and artistic means in a certain region and modifying the terrain (or further building mountains, stacking stones and managing water) to plant trees, flowers and plants, building buildings, arranging garden roads and the like, and is called garden. Gardens include gardens, residential gardens, small paradises, gardens, parks, vegetable gardens, zoos and the like, and with the development of the garden discipline, forest parks, scenic spots, natural conservation areas or tourist areas of national parks and recreational areas are included.

At present, when afforesting gardens, plants are often required to be trimmed into various shapes, such as circles, squares and the like, so as to achieve the effect of attractive appearance. However, in the prior art, a worker usually uses a common manual pruning knife or an electric pruning knife to prune, the pruning effect is basically realized by the skill of the worker, so that the shapes of the pruned plants are not uniform, and the pruning efficiency is low.

Disclosure of Invention

The invention aims to: aims to provide a plant trimming device which can trim plants into squares and has the advantages of high efficiency, convenient use, good trimming effect and the like.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

a plant trimming device comprises a vehicle body, wherein four supporting legs are mounted at the bottom of the vehicle body, rollers are mounted at the bottoms of the supporting legs, handrails are connected to the side wall of the vehicle body, a power mechanism is mounted on the vehicle body, a trimming mechanism is mounted at the bottom of the vehicle body, and the power mechanism is connected with the trimming mechanism and used for providing power for the trimming mechanism;

the pruning mechanism comprises a first shell and two second shells which are connected on the side wall of the first shell in a sliding way, the first shell is internally provided with a reversing mechanism, the first shell and the two second shells are internally provided with two trimming units which have the same structure and are symmetrically arranged, each trimming unit also comprises a rack, the rack is arranged in the first shell, the reversing mechanism is connected with the rack, the end part of the rack is fixedly connected with a cross rod, the other end of the cross rod is connected with a vertical rod, the cross rod and the vertical rod are both arranged in the second shell, the cross rod is connected with a first rotating shaft and a vertical shaft, the first rotating shaft is rotatably connected with the cross rod through a bearing, a first chain wheel is connected on the first rotating shaft, the vertical shaft is connected with a second chain wheel, and the first chain wheel, the second chain wheel and the reversing mechanism are connected through a chain;

the inner side walls of the cross rod and the vertical rod are both provided with a first sliding chute and a second sliding chute, wherein the first sliding chute of the cross rod is connected with a first sliding block in a sliding way, the side wall of the sliding block is connected with a first ejector rod, the end part of the first ejector rod is connected with a first inclined block, the middle part of the first ejector rod is connected with a first guide rod, the top of the first guide rod is connected in the second sliding groove of the cross rod in a sliding manner, the bottom of the first sliding block is connected with a first connecting plate, the first connecting plate is connected with a transverse moving blade which is connected with a reciprocating mechanism, the reciprocating mechanism also comprises a first connecting rod, one end of the first connecting rod is hinged with the bottom of the first rotating shaft, the other end of the first connecting rod is hinged with a second connecting rod, the other end of the second connecting rod is hinged with the transverse moving blade, a transverse fixed blade is fixedly installed in the second shell, and the transverse fixed blade is positioned below the transverse moving blade;

the utility model discloses a vertical movement blade, including montant, first spout, second slider, second ejector pin end connection, second ejector pin middle part is connected with the second guide arm, second guide arm top sliding connection is in the second spout of montant, the second slider is connected with the second ejector pin, second ejector pin end connection has the second sloping block, second ejector pin middle part is connected with the second guide arm, second guide arm top sliding connection is in the second spout of montant, the second slider is connected with the second connecting plate, the second connecting plate is connected with vertical movement blade, still be connected with the mounting panel on the montant lateral wall, be connected with reset spring between mounting panel and the second slider, still fixed mounting has vertical fixed blade in the.

The reversing mechanism further comprises a fluted disc, the fluted disc is rotatably arranged in the first shell, the outer wall and the inner wall of the fluted disc are respectively provided with a toothed part, the outer wall of the fluted disc is meshed with a rack, the bottom of the fluted disc is connected with a chuck through a connecting rod, the chuck is provided with a clamping hole, the inner wall of the fluted disc is meshed with a first gear, the middle part of the fluted disc is provided with a second gear, the bottom of the second gear is connected with a clamping block, the middle part of the second gear is connected with a control rod, the middle part of the control rod is provided with a splined shaft which is connected with a splined sleeve, the splined sleeve is connected with a third sprocket, a fourth sprocket and a third gear, the first sprocket, the second sprocket and the third sprocket of one of the trimming units are connected through a chain, the first sprocket, the second sprocket and the fourth sprocket of the other trimming unit are connected through a chain, the automobile body is connected with a handle, the handle extends out of the top of the automobile body, and the lower portion of the handle is connected with the top of the control rod. After pruning two sides of plant, rotate the automobile body 90 through the handrail, then push down the control lever through the handle, the control lever drives the decline of second gear, make the fixture block card of second gear bottom go into the draw-in hole on the chuck, thereby make the second gear drive fluted disc antiport, the fluted disc drives two pruning unit antiport through two racks again, until the fluted disc arrives the other end from the one end of two racks, reach the purpose of pruning two other sides of plant, lift the control lever through the handle, the control lever drives the second gear and rises, make second gear and chuck break away from, wait for next duty cycle.

Further limited, the power mechanism further comprises an engine, the engine is connected with a speed reducer, an output shaft of the speed reducer is connected with a fourth gear, and the fourth gear is meshed with the third gear.

Further inject, be equipped with ring groove on the control lever, the handle sub-unit connection has the snap ring, the snap ring rotates to be connected in ring groove. Therefore, the handle can drive the control rod to ascend or descend, and meanwhile, the control rod cannot drive the handle to rotate.

Further inject, two first spouts have all been seted up on the inside wall of horizontal pole and montant, the quantity of first slider and second slider is two, the quantity of card hole and fixture block is three, the quantity of first gear is two, and the symmetry sets up. Therefore, the stress is balanced, and each structure can work normally.

Further inject, the control lever middle part is provided with the scale mark, conveniently passes through the height of handle control lever like this to conveniently control the connection state of second gear and first gear and chuck.

When the device is used, the device mainly comprises the following steps,

and step one, starting.

Promote the automobile body to the plant top through the handrail, during initial condition, the second gear is located the position between first gear and the chuck, and the state of second gear and first gear and chuck while disconnection starts the engine after that, and the engine passes through the speed reducer and drives fourth gear revolve, and the fourth gear drives the third gear revolve, and the third gear drives control lever and third sprocket, fourth sprocket rotation through the spline housing again.

And step two, transversely trimming.

The rotation of the third chain wheel and the fourth chain wheel sequentially transfers power to the first chain wheel, the second chain wheel, the first connecting rod and the second connecting rod in the corresponding trimming unit, so that the first connecting rod rotates and the second connecting rod swings, the second connecting rod drives the transverse moving blade arranged on the cross rod to do transverse reciprocating motion under the limiting action of the second sliding chute, and the transverse moving blade and the transverse fixed blade perform relative motion to achieve the aim of transverse trimming;

and step three, vertically trimming.

The transverse moving blade transversely reciprocates, the first inclined block is driven to transversely reciprocate through the first connecting plate, the first sliding block and the first ejector rod, the first inclined block drives the vertical moving blade to vertically reciprocate through the second inclined block, the second ejector rod, the second sliding block and the second connecting plate under the action of the reset spring, and the vertical moving blade and the vertical fixed blade move relatively to achieve the purpose of vertical trimming.

And step four, translating.

The control rod is lifted up through the handle, the control rod drives the second gear to rise, the second gear is meshed with the first gear, the second gear is sequentially driven by the rotation of the control rod, the first gear and the fluted disc rotate, the fluted disc rotates to drive the two racks to move horizontally, and therefore the two trimming units are driven to move horizontally relatively until the fluted disc reaches the other end from one ends of the two racks, the purpose of trimming the top and the two side surfaces of a plant is achieved, then the control rod is pressed downwards through the handle, the control rod drives the second gear to fall down, and the second gear is disengaged from the first gear.

And step five, reversing.

After pruning two sides of plant, rotate the automobile body 90 through the handrail, then push down the control lever through the handle, the control lever drives the decline of second gear, make the fixture block card of second gear bottom go into the draw-in hole on the chuck, thereby make the second gear drive fluted disc antiport, the fluted disc drives two pruning unit antiport through two racks again, until the fluted disc arrives the other end from the one end of two racks, reach the purpose of pruning two other sides of plant, lift the control lever through the handle, the control lever drives the second gear and rises, make second gear and chuck break away from, wait for next duty cycle.

The invention has the following advantages:

1. the pruning mechanism can prune the top and two sides of the plant at one time, and the working efficiency is higher;

2. can prune into the square shape with the plant, the shape uniformity is high, and is pleasing to the eye effectual.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a trimming mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of a trimming mechanism with a housing removed according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a trimming unit according to an embodiment of the present invention;

FIG. 5 is a first schematic diagram illustrating a portion of a trimming unit according to an embodiment of the present invention;

FIG. 6 is a schematic front view of a portion of a trimming unit according to an embodiment of the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 6;

FIG. 8 is a second schematic view of a portion of the trimming unit according to an embodiment of the present invention;

FIG. 9 is an enlarged view of the structure at B in FIG. 8;

FIG. 10 is a schematic structural view of a reversing mechanism in an embodiment of the invention;

FIG. 11 is a schematic view of a portion of a reversing mechanism according to an embodiment of the present invention;

FIG. 12 is a cross-sectional structural view of the control rod and spline housing connection in an embodiment of the present invention;

FIG. 13 is a schematic cross-sectional view of a control lever coupled to a handle in accordance with an embodiment of the present invention;

the main element symbols are as follows:

the trimming mechanism 3 comprises a vehicle body 11, a supporting foot 12, a roller 13, an armrest 14, an engine 21, a speed reducer 22, a trimming mechanism 3, a first housing 31, a second housing 32, a reversing mechanism 4, a fluted disc 41, a connecting rod 42, a chuck 43, a clamping hole 44, a first gear 45, a second gear 46, a clamping block 47, a control rod 48, a spline housing 49, a third sprocket 410, a third gear 411, a handle 412, a clamping ring 413, a fourth sprocket 414, a trimming unit 5, a rack 51, a cross rod 52, a vertical rod 53, a first rotating shaft 54, a vertical shaft 55, a bearing 56, a first sprocket 57, a second sprocket 58, a first sliding groove 59, a second sliding groove 510, a first sliding block 511, a first ejector rod 512, a first inclined block 513, a first guide rod 514, a first connecting plate 515, a transverse moving blade 516, a transverse fixed blade 517, a second sliding block 518, a second ejector rod 520, a second inclined block 521, a second connecting plate 522, a vertical moving blade 523, Mounting plate 524, return spring 525, vertical fixed blade 526, first link 61, second link 62.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1 to 13, a vegetation pruning device of the present invention may be used to prune vegetation into a square shape. The device includes automobile body 11, and four supporting legs 12 are installed to automobile body 11 bottom, and gyro wheel 13 is installed to supporting leg 12 bottom, is connected with handrail 14 on the lateral wall of automobile body 11, conveniently removes automobile body 11 like this.

The vehicle body 11 is provided with a power mechanism, the power mechanism comprises an engine 21, the engine 21 is connected with a speed reducer 22, an output shaft of the speed reducer 22 is connected with a fourth gear (not shown in the figure), and in practice, the power mechanism can also adopt the combination of a motor and the speed reducer.

The bottom of the vehicle body 11 is provided with a trimming mechanism 3, and the power mechanism is connected with the trimming mechanism 3 and used for providing power for the trimming mechanism 3.

The trimming mechanism 3 further comprises a first shell 31 and two second shells 32, the two second shells 32 are slidably connected to the side wall of the first shell 31, a reversing mechanism 4 is installed in the first shell 31, two trimming units 5 which are identical in structure and symmetrically arranged are installed in the first shell 31 and the two second shells 32, each trimming unit 5 further comprises a rack 51, the rack 51 is installed in the first shell 31, the reversing mechanism 4 is connected with the rack 51, the end of the rack 51 is fixedly connected with a cross bar 52, the other end of the cross bar 52 is connected with a vertical bar 53, the cross bar 52 and the vertical bar 53 are both installed in the second shell 32, the cross bar 52 is connected with a first rotating shaft 54 and a vertical shaft 55, the first rotating shaft 54 is rotatably connected with the cross bar 52 through a bearing 56, the first rotating shaft 54 is connected with a first chain wheel 57, the vertical shaft 55 is connected with a second chain wheel 58 and a first chain wheel 57, the second sprocket 58 and the reversing mechanism 4 are connected by a chain.

Two first chutes 59 and two second chutes 510 are respectively formed in the inner side walls of the cross bar 52 and the vertical bar 53, wherein a first sliding block 511 is slidably connected in each first chute 59 of the cross bar 52, the side wall of the first sliding block 511 is connected with a first push rod 512, the end of the first push rod 512 is connected with a first inclined block 513, the middle part of the first push rod 512 is connected with a first guide rod 514, the top of the first guide rod 514 is slidably connected in the second chute 510 of the cross bar 52, the bottom of the first sliding block 511 is connected with a first connecting plate 515, the first connecting plate 515 is connected with a transverse moving blade 516, a transverse fixed blade 517 is further fixedly mounted in the second casing 32, and the transverse fixed blade 517 is located below the transverse moving blade 516.

In order to make the transverse moving blade 516 do transverse reciprocating motion, a reciprocating mechanism is connected with the transverse moving blade 516, the reciprocating mechanism further comprises a first connecting rod 61, one end of the first connecting rod 61 is hinged with the bottom of the first rotating shaft 54, the other end of the first connecting rod is hinged with a second connecting rod 62, and the other end of the second connecting rod 62 is hinged with the transverse moving blade 516. The rotation of the third sprocket 410 and the fourth sprocket 414 sequentially transmits power to the first sprocket 57, the second sprocket 58, the first connecting rod 61 and the second connecting rod 62 in the corresponding trimming unit 5, so that the first connecting rod 61 rotates and the second connecting rod 62 swings, under the limiting action of the second chute 510, the second connecting rod 62 drives the transverse moving blade 516 mounted on the cross rod 52 to do transverse reciprocating motion, and the transverse moving blade 516 and the transverse fixed blade 517 move relatively to achieve the purpose of transverse trimming.

A second sliding block 518 is connected in the first sliding groove 59 of the vertical rod 53 in a sliding manner, the side wall of the second sliding block 518 is connected with a second ejector rod 519, the end of the second ejector rod 519 is connected with a second oblique block 520, the middle part of the second ejector rod 519 is connected with a second guide rod 521, the top of the second guide rod 521 is connected in the second sliding groove 510 of the vertical rod 53 in a sliding manner, the second sliding block 518 is connected with a second connecting plate 522, the second connecting plate 522 is connected with a vertical moving blade 523, the side wall of the vertical rod 53 is also connected with a mounting plate 524, a return spring 525 is connected between the mounting plate 524 and the second sliding block 518, a vertical fixed blade 526 is further fixedly mounted in the second housing 32.

The transverse moving blade 516 transversely reciprocates, the first inclined block 513 is driven to transversely reciprocate by the first connecting plate 515, the first sliding block 511 and the first push rod 512, the first inclined block 513 drives the vertical moving blade 523 to vertically reciprocate by the second inclined block 520, the second push rod 519, the second sliding block 518 and the second connecting plate 522 under the action of the return spring 525, and the vertical moving blade 523 and the vertical fixed blade 526 relatively move to achieve the purpose of vertical trimming.

The reversing mechanism 4 further comprises a fluted disc 41, the fluted disc 41 is rotatably installed in the first shell 31, the outer wall and the inner wall of the fluted disc 41 are both provided with a toothed part, the outer wall of the fluted disc 41 is meshed with a rack 51, the bottom of the fluted disc 41 is connected with a chuck 43 through a connecting rod 42, the chuck 43 is provided with a clamping hole 44, the inner wall of the fluted disc 41 is meshed with a first gear 45, the middle part of the fluted disc 41 is provided with a second gear 46, the bottom of the second gear 46 is connected with a clamping block 47, the middle part of the second gear 46 is connected with a control rod 48, the middle part of the control rod 48 is provided with a spline shaft which is connected with a spline sleeve 49, the spline sleeve 49 is connected with a third sprocket 410, a fourth sprocket 414 and a third gear 411, the first sprocket 57, the second sprocket 58 and the third sprocket 410 of one of the trimming units 5 are connected through a chain, the first sprocket 57, the second sprocket, the handle 412 is connected with the automobile body 11, and the handle 412 stretches out from the top of automobile body 11, and the handle 412 lower part is connected with the top of control lever 48, is equipped with ring groove on the control lever 48, and the handle 412 sub-unit connection has snap ring 413, and snap ring 413 rotates to be connected in ring groove. This allows the handle 412 to raise and lower the lever 48 without the lever 48 rotating the handle 412.

When the vehicle is started, the vehicle body 11 is pushed to the upper side of a plant through the handrail 14, in an initial state, the second gear 46 is located at a position between the first gear 45 and the chuck 43, the second gear 46 is disconnected with the first gear 45 and the chuck 43 at the same time, then the engine 21 is started, the engine 21 drives the fourth gear to rotate through the speed reducer 22, the fourth gear drives the third gear 411 to rotate, and the third gear 411 drives the control rod 48, the third chain wheel 410 and the fourth chain wheel 414 to rotate through the spline housing 49.

During pruning, the control rod 48 is lifted up through the handle 412, the control rod 48 drives the second gear 46 to ascend, so that the second gear 46 is meshed with the first gear 45, the second gear 46, the first gear 45 and the fluted disc 41 are sequentially driven to rotate by the rotation of the control rod 48, the two racks 51 are driven to horizontally move by the rotation of the fluted disc 41, and therefore the two whole pruning units 5 are driven to horizontally move relatively until the fluted disc 41 reaches the other end from one end of the two racks 51, the purpose of pruning the top and two sides of a plant is achieved, then the control rod 48 is pressed down through the handle 412, the control rod 48 drives the second gear 46 to descend, and the second gear 46 is disengaged from the first gear 45.

After the two sides of the plant are trimmed, the vehicle body 11 is rotated by 90 degrees through the armrest 14, then the control rod 48 is pressed down through the handle 412, the control rod 48 drives the second gear 46 to descend, the clamping block 47 at the bottom of the second gear 46 is clamped into the clamping hole 44 in the chuck 43, so that the second gear 46 drives the fluted disc 41 to rotate reversely, the fluted disc 41 drives the two trimming units 5 to move reversely through the two racks 51 until the fluted disc 41 reaches the other end from one end of the two racks 51, the purpose of trimming the other two sides of the plant is achieved, the control rod 48 is lifted up through the handle 412, the control rod 48 drives the second gear 46 to ascend, the second gear 46 is separated from the chuck 43, and the next working cycle is waited.

The plant trimming device provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A plant trimming apparatus, characterized in that: the trimming mechanism comprises a vehicle body (11), wherein four supporting legs (12) are mounted at the bottom of the vehicle body (11), rollers (13) are mounted at the bottoms of the supporting legs (12), handrails (14) are connected to the side wall of the vehicle body (11), a power mechanism is mounted on the vehicle body (11), a trimming mechanism (3) is mounted at the bottom of the vehicle body (11), and the power mechanism is connected with the trimming mechanism (3) and used for providing power for the trimming mechanism (3);

the trimming mechanism (3) comprises a first shell (31) and two second shells (32), the two second shells (32) are connected to the side wall of the first shell (31) in a sliding manner, a reversing mechanism (4) is installed in the first shell (31), two trimming units (5) which are identical in structure and symmetrically arranged are installed in the first shell (31) and the two second shells (32), each trimming unit (5) comprises a rack (51), the racks (51) are installed in the first shell (31), the reversing mechanism (4) is connected with the racks (51), a cross rod (52) is fixedly connected to the end of each rack (51), the other end of each cross rod (52) is connected with a vertical rod (53), the cross rod (52) and the vertical rod (53) are both installed in the second shells (32), and a first rotating shaft (54) and a vertical shaft (55) are connected to the cross rod (52), the first rotating shaft (54) is rotatably connected with the cross rod (52) through a bearing (56), a first chain wheel (57) is connected to the first rotating shaft (54), a second chain wheel (58) is connected to the vertical shaft (55), and the first chain wheel (57), the second chain wheel (58) and the reversing mechanism (4) are connected through a chain;

the inner side walls of the cross rod (52) and the vertical rod (53) are respectively provided with a first sliding groove (59) and a second sliding groove (510), wherein the first sliding groove (59) of the cross rod (52) is connected with a first sliding block (511) in a sliding manner, the side wall of the first sliding block (511) is connected with a first ejector rod (512), the end part of the first ejector rod (512) is connected with a first inclined block (513), the middle part of the first ejector rod (512) is connected with a first guide rod (514), the top part of the first guide rod (514) is connected in the second sliding groove (510) of the cross rod (52) in a sliding manner, the bottom part of the first sliding block (511) is connected with a first connecting plate (515), the first connecting plate (515) is connected with a transverse moving blade (516), the transverse moving blade (516) is connected with a reciprocating mechanism, the reciprocating mechanism comprises a first connecting rod (61), one end of the first connecting rod (61) is hinged with the, the other end of the second connecting rod (62) is hinged with a second connecting rod (62), the other end of the second connecting rod (62) is hinged with a transverse moving blade (516), a transverse fixed blade (517) is fixedly mounted in the second shell (32), and the transverse fixed blade (517) is positioned below the transverse moving blade (516);

a second sliding block (518) is connected in the first sliding groove (59) of the vertical rod (53) in a sliding way, the side wall of the second sliding block (518) is connected with a second ejector rod (519), the end part of the second ejector rod (519) is connected with a second inclined block (520), the middle part of the second ejector rod (519) is connected with a second guide rod (521), the top part of the second guide rod (521) is connected in a second sliding groove (510) of the vertical rod (53) in a sliding way, the second slider (518) is connected with a second connecting plate (522), the second connecting plate (522) is connected with a vertical moving blade (523), the side wall of the vertical rod (53) is also connected with a mounting plate (524), a return spring (525) is connected between the mounting plate (524) and the second sliding block (518), a vertical fixed blade (526) is also fixedly arranged in the second shell (32), the vertical fixed blade (526) is located to the left of the vertical moving blade (523).

2. The vegetation pruning device of claim 1, wherein: reversing mechanism (4) includes fluted disc (41) again, fluted disc (41) rotates and installs in first casing (31), all be equipped with profile of tooth portion on the outer wall of fluted disc (41) and the inner wall, fluted disc (41) outer wall and rack (51) meshing, fluted disc (41) bottom is connected with chuck (43) through connecting rod (42), draw-in hole (44) have been seted up on chuck (43), fluted disc (41) inner wall meshing has first gear (45), fluted disc (41) middle part is equipped with second gear (46), second gear (46) bottom is connected with fixture block (47), second gear (46) middle part is connected with control lever (48), control lever (48) middle part is equipped with the integral key shaft, the integral key shaft is connected with spline housing (49), spline housing (49) are connected with third sprocket (410), fourth sprocket (414) and third gear (411), the first chain wheel (57), the second chain wheel (58) and the third chain wheel (410) of one of the trimming units (5) are connected through a chain, the first chain wheel (57), the second chain wheel (58) and the fourth chain wheel (414) of the other trimming unit (5) are connected through a chain, the third gear (411) is connected with a power mechanism, the vehicle body (11) is connected with a handle (412), the handle (412) extends out of the top of the vehicle body (11), and the lower portion of the handle (412) is connected with the top of the control rod (48).

3. The vegetation pruning device of claim 1, wherein: the power mechanism further comprises an engine (21), the engine (21) is connected with a speed reducer (22), an output shaft of the speed reducer (22) is connected with a fourth gear, and the fourth gear is meshed with the third gear (411).

4. The vegetation pruning device of claim 1, wherein: two first sliding grooves (59) are formed in the inner side walls of the transverse rod (52) and the vertical rod (53), and the number of the first sliding blocks (511) and the number of the second sliding blocks (518) are two.

5. The vegetation pruning device of claim 1, wherein: the control rod (48) is provided with an annular clamping groove, the lower portion of the handle (412) is connected with a clamping ring (413), and the clamping ring (413) is rotatably connected in the annular clamping groove.

6. The vegetation pruning device of claim 1, wherein: the number of the clamping holes (44) and the number of the clamping blocks (47) are three.

7. A vegetation pruning device according to claim 2, wherein: and the middle part of the control rod (48) is provided with scale marks.

8. A vegetation pruning device according to claims 1 to 7, wherein: the number of the first gears (45) is two, and the first gears are symmetrically arranged.