CN1498526A

CN1498526A - Semi-automatic clippers for horticultural plant

Info

Publication number: CN1498526A
Application number: CNA021519145A
Authority: CN
Inventors: 陈伟军
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-11
Filing date: 2002-11-11
Publication date: 2004-05-26

Abstract

A semi-automatic pruning tool for the plant in garden is composed of casing, the power mechanism having a manual handle with straight teeth, and a cutitng mechanism. Continuously and manually operating said handle can rotate a gear engaged with a flywheel to make the flywheel rotate at high speed. By the belt transmission, the cutting knife wheel is rotating at high speed to prune the plant.

Description

Semi-automatic gardening plant trimmer

The present invention relates to a kind of gardening plant hedge pruning tool, especially a kind of gardening pruning tool that can semi-automatic use.

Along with the pay attention to day by day of people to the environmental greening problem, the prune picker is just pressing for a kind of laborsaving efficient, automation vegetation pruning instrument cheaply, but at present, the still vegetation pruning instrument of shear formula that generally uses, not only labour intensity is big, and efficient is low, also hurts hand skin easily, and employing motor driven pruning tool, self heaviness costs an arm and a leg inconvenient maintenance.

In order to solve the deficiency of existing gardening plant pruning tool, the invention provides a kind of trimmer, can semi-automaticly use, can significantly improve pruning efficient.

The technical solution adopted in the present invention is: this trimmer is made up of shell, actuating unit, cutting mechanism.One plate fixed handle is arranged in the actuating unit, have straight-tooth on the handle, as long as continuous plate fixed handle is by gear drive, drive the flywheel inertia fast rotational in the actuating unit, further pass through belt transmission, drive the scribing wheel high speed rotating in the cutting mechanism, thereby reach the purpose that plant is pruned in efficient cutting.

The invention has the beneficial effects as follows, can provide a kind of semi-automatic high efficiency gardening pruning tool, have laborsaving, simple and reasonable advantage with low cost.

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is the interior perspective view of trimmer.

Fig. 3 is the exploded perspective perspective view of each parts of trimmer.

Fig. 4 is the plane of trimmer.

Fig. 5 is the interior plane of trimmer.

Fig. 6 is the side elevational view of trimmer.

Fig. 7 is the side elevation profile of trimmer.

Fig. 8 is the M-M profile of Fig. 7 actuating unit.

Fig. 9 is the structural representation of three tooth parabola castle wheels.

Figure 10 is the plane of dual rotary blade type trimmer.

Figure 11 is the interior plane of dual rotary blade type trimmer.

1. connecting screws among the figure, 2. upper shell, 3. angular wheel A, 4. drive shaft mount A, 5. gear shaft A, 6. belt pulley A, 7. driving belt, 8. angular wheel B, 9. break bar axle, 10. bearing, 11. rotating blades, 12. hold-down nuts, 13. fixed blade, 14. 3 tooth parabola castle wheels, 15. steel balls, 16. axle sleeve, 17. travelling gear A, 18. travelling gear B, 19. gear shaft B, 20. gear shaft C, 21. gear shaft D, 22. drive shaft mount B, 23. flywheels, 24. belt pulley B, 25. torsion spring, 26. handle, 27. Handle axis, 28. lower houses.

Consult Fig. 1 to 9, it illustrates the trimmer of preferred embodiment of the present invention, and this trimmer is made up of shell, actuating unit, cutting mechanism three major parts.Shell comprises: upper shell 2, lower house 28 are formed, and they connect by screw 1, and housing should adopt the plastic cement injection molding process to make.Actuating unit partly comprises: drive shaft mount A4 and drive shaft mount B22, they are fixed on the lower house 28 by screw.One gear shaft A5 is wherein arranged on the drive shaft mount A4, angular wheel A3 and belt pulley A6 are housed on the gear shaft A5.Drive shaft mount B22 is equipped with gear shaft B19, gear shaft C20, three axle stamens of gear shaft D21 from the bottom up respectively.One travelling gear A17 is housed on the gear shaft B19, a travelling gear B18 is housed on the gear shaft C20, the gear wheel engagement on pinion on the travelling gear B18 and the travelling gear A17, they form doubly fast power train.Gear shaft D21 is equipped with axle sleeve 16 in two ends, and axle sleeve available copper material is made, and axle sleeve 16 is nested in the axis hole place of drive shaft mount, and one or three tooth parabola castle wheel 14 (structure as shown in Figure 9) flywheel 23 and belt pulley B24 are housed respectively on the gear shaft D21.Be with driving belt 7 on the belt pulley B24, the other end of driving belt 7 is enclosed within on the belt pulley A6.Place, flywheel 23 one side axle center has circular groove, the hole diameter ratio shaft stamen diameter of three tooth parabola castle wheels 14 is big, can be not with main axis rotation, its back double wedge is coaxial to be nested with in the interior circular groove of flywheel 23 (as shown in Figure 8), form the steel ball road, the wide end of an end is narrow in the steel ball road, and steel ball 15 is arranged in the steel ball road, the pinion of three tooth parabola castle wheels and the engagement of the gear wheel on the travelling gear B18, they also form doubly fast power train.Also be equipped with one at housing near the place of shaking hands and pull handle 26, there is a circular hole at the handle middle part, be hinged on the housing by Handle axis 27, be with torsion spring 25 on the Handle axis, torsion spring 25 1 ends are stuck on the handle, the other end is stuck on the lower house 28, and the front end of handle has the arc straight-tooth, the pinion of straight-tooth and travelling gear A17.Cutting mechanism partly is positioned at the front end of housing, comprising: angular wheel B8, break bar axle 9, bearing 10, rotating blade 11, hold-down nut 12, fixed blade 13 are formed.Angular wheel B8 bearing 10 and rotating blade 11 are housed respectively on the break bar axle 9, wherein angular wheel B8 is an angle of 90 degrees engagement with angular wheel A3, bearing 10 is a ball bearing, it is nested in the lower house 28 front end circular grooves, have serration on rotating blade 11 circumference, be fixed on the bottom of break bar axle 9 by hold-down nut 12, front bottom end at lower house 28 also is equipped with a fixed blade 13, blade has sharp blade at the arc port towards rotating blade, fixed blade is last, rotating blade is following, and they are close to but can not contact.

When plate fixed handle 26, the straight-tooth on the handle drives travelling gear A17 and rotates, and travelling gear A17 drives travelling gear B18 times of speed and rotates, and travelling gear B18 drives three tooth parabola castle wheels 14 again and does doubly fast the rotation.Steel ball 16 in the steel ball road is snapped in the narrow end steel ball road, because frictional force, drive flywheel 23 along with quick rotation, also quick rotation together of belt pulley B24 simultaneously, the transmission by belt 7 make also and then quick rotation of belt pulley A6, at this moment, because coaxial relation, angular wheel A3 is quick rotation also, drives angular wheel B8 towards another stamen direction rotation by the gear teeth, makes the rotating blade 11 can be towards fixed blade 12 direction quick rotation at last.When handle 26 plates be at the end unclamp after, torsion spring 25 on the Handle axis 27 back rebounds owing to twisting force, make the handle reposition, corresponding drive travelling gear A17, travelling gear B18, three tooth parabola castle wheels 14 rotate toward rightabout, steel ball 16 in the steel ball road returns in the wide end steel ball road, rotate synchronously because of zerofriction force makes three tooth parabola castle wheels break away from flywheel 23, and reach the purpose of clutch.But flywheel 23 is because effect of inertia still is being with belt pulley B24 quick rotation, the continuous like this handle 26 of back and forth pulling, constantly quicken, make rotating blade 11 towards fixed blade 12 direction high speed rotating at last, because the serration on rotating blade 11 circumference is at a high speed towards the edge direction relative motion of fixed blade, thereby reach the purpose of cutting.

Figure 10,11 illustrates the trimmer of second embodiment, the improvement of this embodiment mainly at cutting mechanism partly, actuating unit partly just increases by one group of travelling gear makes the power direction of rotation of its generation opposite with the direction of top embodiment, this do not explain in detail see also above embodiment.The cutting mechanism of present embodiment partly is equipped with two groups of rotary cutting bodies, and two rotating blades of its bottom are close to overlapping being installed in separately on two break bar axles up and down, and in the time of cutting, they are high speed rotating relatively, reaches the effect of cutting.

Claims

1. a gardening plant pruning tool comprises: by 1. connecting screws, 2. upper shell, 3. angular wheel A, 4. drive shaft mount A, 5. gear shaft A, 6. belt pulley A, 7. driving belt, 8. angular wheel B, 9. break bar axle, 10. bearing, 11. rotating blades, 12. hold-down nut, 13. fixed blades, 14. 3 tooth parabola castle wheels, 15. steel ball, 16. axle sleeves, 17. travelling gear A, 18. travelling gear B, 19. gear shaft B, 20. gear shaft C, 21. gear shaft D, 22. drive shaft mount B, 23. flywheels, 24. belt pulley B, 25. torsion springs, 26. handles, 27. Handle axis, 28. lower houses are formed.Its feature: as long as continuous plate fixed handle by gear drive, drives the flywheel inertia fast rotational in the actuating unit,, drive the scribing wheel high speed rotating in the cutting mechanism, thereby reach the purpose that plant is pruned in efficient cutting further by belt transmission.

2. trimmer according to claim 1, its further feature is: there is a circular hole at above-mentioned handle 26 middle parts, be hinged on the housing by Handle axis 27, be with torsion spring 25 on the Handle axis, torsion spring 25 1 ends are stuck on the handle, the other end is stuck on the lower house 28, and the front end of handle has the arc straight-tooth.

3. trimmer according to claim 1, its further feature is: a flywheel 23 is housed in the actuating unit, and its place, axle center has circular groove, can play the inertia induced effect.

4. trimmer according to claim 1, its further feature is: three above-mentioned tooth parabolas close from wheel 14 its backs and have three lobe double wedges, coaxial being nested with in the interior circular groove of flywheel 23, form the steel ball road, the wide end of an end is narrow in the steel ball road, and steel ball 15 is arranged in the steel ball road, can play clutch action.

5. trimmer according to claim 1, its further feature is: the front bottom end at lower house 28 also is equipped with a fixed blade 13, and blade has sharp blade at the arc port towards rotating blade.

6. trimmer according to claim 1, its further feature is: its cutting mechanism partly can adopt a rotating blade one fixed blade and two kinds of cutting mode structures of dual rotary blade.