Summary of the invention: the purpose of this utility model is to overcome the problem that noise was big, environmental pollution is serious when the lawn grass mower that has power engine now was used, a kind of environment-friendly type hand-push type lawn grass mower is provided, utilize manpower to promote grass mower walking power and realize cutting the grass action, cut grass as blade movement power.
The technical solution of the utility model is: environment-friendly type hand-push type lawn grass mower is by transfer bar mechanism, the frame mechanism that band seesaws and takes turns, cover in the casing on the frame, and the speed increasing mechanism, movement conversion mechanism and the executing agency that are loaded on the frame form, speed increasing mechanism is a gear drive, movement conversion mechanism is the cam lever body, and cutting careless executing agency is slide block guide rail mechanism.Use for convenience, the cutting-height governor motion also is housed on the frame; Transfer bar mechanism can be foldable structure or stretching structure, and by push rod, telescoping tube, folding fastening wing nut is formed.
Gear drive is by the gear wheel (2) that is installed on the hind axle, and the bearing bracket (19) that is loaded on the frame upward and with the gear shaft (3) of pinion is formed; Module is 2, and the gearratio of large and small gear is 2~5.By the speedup of gear drive, the careless efficient of cutting of grass mower is improved.
The cam lever body is by installation (can realize by key or screw thread) cam on left end face (4), right side cam (15) on gear shaft, and installation (can pass through T type groove and screw) left and right sides driving lever (5) on slide block (6) is formed.The double wedge of edge cam is 6~10 teeth (selecting as required), left and right sides edge cam interlace a tooth, lean against and be fixed on privately on the gear shaft (3), contact on the double wedge flank of tooth of cam with the left and right sides driving lever (5) on being installed in slide block (6), form movement conversion mechanism, finish the conversion of spatial movement, with the rotational transform of cam be slide block about move back and forth; Simultaneously,, further improved the operating efficiency of grass mower, and regulated for the height of designed cutting-height governor motion and to provide convenience by the speedup between the cam lever body.
Slide block guide rail mechanism by slide block (6), guide rail (7), be fixed on the movable blades (8) on the slide block, the fixed blade (9) that is fixed on the guide rail is formed, guide rail is fixed on the frame, by the dovetail groove constrained motion, slide block and guide rail can only be done relatively reciprocating motion between slide block and the guide rail; Movable blades and fixed blade can be fixed on slide block and the guide rail with sunk screw respectively.Relative reciprocatingly sliding between slide block and the guide rail makes movable blades fixed thereon and fixed blade relative motion, thus finish grass mower cut the grass action.
Cutting-height governor motion (16) is by the hangers on the guide rail that is fixed on slide block guide rail mechanism (18), be fixed on the bearing bracket (19) on the frame, wing nut (20) is formed, have on the bearing bracket stand and with holesly (can establish a plurality of circular counter bore, at regular intervals between per two holes) guide groove, hangers is set in the counterbore of bearing bracket stand upper rail, and is fixed by wing nut.The hangers that will be connected with cutter frame mechanism (slide block guide rail mechanism) is gone up along the guide groove on the bearing bracket stand (in the counterbore on guide groove) and is moved, and utilizes align member (wing nut) that hangers is locked at the position of different counterbores, has promptly finished the adjusting of blade cutting-height.The adjusting of height causes the contact point on the double wedge flank of tooth of driving lever and edge cam to change, go up at various height, contact point moves along the radial direction of edge cam double wedge, the track of contact point appears on the different radiuses, the movement velocity of driving lever is changed thereupon, and the speed of movable blades also changes thereupon when promptly cutting grass.
The utility model promotes the grass mower motion by manpower, realizes cutting the grass action, and having solved traditional lawn grass mower needs power engine to drive the problem that just can make grass mower work.Designed environment-friendly type hand-push type lawn shear grass prow will pass manpower by a Force transmission parts (push rod) earlier, in order to allow the operator under a normal speed of travel, operate, the power that passes continues to transmit by a speed increasing mechanism, because of the direction of relative movement of blade that carry out to prune the grass action and the people direction of advancing vertical, switching mechanism is delivered to the execution member to the motion need that pass over through the front speed increasing mechanism through one-level again, just can finish and cut the grass action.
The beneficial effects of the utility model are: need not power engine, adopt manpower to drive, noise is little, pollution-free, makes the user can not have influence on people's working and learning on every side when cutting careless operation, simultaneously energy savings.In addition, this grass mower compact conformation, volume is little, and is in light weight, easy to use flexible, and the grass of cutting that is fit to the small size lawn is handled; Its service behaviour is good, can finish effectively and cut grass work, cuts the height of grass and can classification regulate.The push rod of this grass mower can also the folding retractable folding and unfolding, and the personnel that are suitable for different heights use, and occupation space when having reduced grass mower greatly and not working, and is convenient to deposit.
Embodiment: further specify the utility model below in conjunction with drawings and Examples.
Example 1: shown in Fig. 1-6, this environment-friendly type hand-push type lawn grass mower is by transfer bar mechanism, the frame mechanism (10) that band seesaws and takes turns, cover in the casing on the frame, and the speed increasing mechanism, movement conversion mechanism and the executing agency that are loaded on the frame form, speed increasing mechanism is a gear drive, and movement conversion mechanism is the cam lever body, and cutting careless executing agency is slide block guide rail mechanism.Use for convenience, cutting-height governor motion (16) also is housed on the frame; Transfer bar mechanism is foldable structure or stretching structure, and by push rod (11), telescoping tube (12), folding fastening wing nut (20) is formed.
Gear drive is by the gear wheel (2) that is installed on the hind axle, and the bearing block (14) that is loaded on the frame upward and with the gear shaft (3) of pinion is formed; Module is 2, and the gearratio of large and small gear is 5.The cam lever body is by the cam on left end face (4), the right side cam (15) that are installed in by key on the gear shaft, and forms by the left and right sides driving lever (5) that T type groove and screw are installed on the slide block (6).The double wedge of edge cam is 6 teeth, left and right sides edge cam interlace a tooth, lean against and be fixed on privately on the gear shaft (3), contact on the double wedge flank of tooth of cam with the left and right sides driving lever (5) on being installed in slide block (6), form movement conversion mechanism, finish the conversion of spatial movement, with the conversion of cam be transformed to slide block about move back and forth.Slide block guide rail mechanism by slide block (6), guide rail (7), be fixed on the movable blades (8) on the slide block, the fixed blade (9) that is fixed on the guide rail is formed, guide rail is fixed on the frame, by the dovetail groove constrained motion, slide block and guide rail can only be done relatively reciprocating motion between slide block and the guide rail.Cutting-height governor motion (16) is by the hangers on the guide rail that is fixed on slide block guide rail mechanism (18), be fixed on the bearing bracket (19) on the frame, wing nut (20) is formed, the guide groove that to have with 5 spacings on the bearing bracket stand be the 10mm counterbore, hangers is set in the counterbore of bearing bracket stand upper rail, and is fixed by wing nut.The hangers that will be connected with cutter frame mechanism (slide block guide rail mechanism) is gone up along the guide groove on the bearing bracket stand (in the counterbore on guide groove) and is moved, and utilizes align member (wing nut) that hangers is locked at the diverse location in hole, has promptly finished the adjusting of blade cutting-height.
Promote the machine walking by the people during grass mower work, thereby the trailing wheel (1) of grass mower is rotated, drive gear wheel (2) rotation on the axle that coexists with it, the speed increasing mechanism of forming by gear (2) and gear shaft (3) is promoted speed, and drive cam on left end face (4) revolution, cam on left end face (4) drives left and right sides driving lever (5) motion, the switching mechanism of forming by cam on left end face (4) and left and right sides driving lever (5) becomes straight reciprocating motion with gyration, make the movable blades fixed on it form relative crisscross motion, finish and cut the grass action with fixed blade on being fixed on frame.
When cutting-height is regulated, unclamp the wing nut (20) of the right and left earlier, knife rest can be moved freely on the guide groove of bearing bracket stand, then according to the selected counterbore of the requirement of cutting-height, hangers (18) is moved to corresponding position, and tighten wing nut (20), both finished the adjusting of cutting-height.The cutting-height of this device has been adjusted to level and has regulated, and can divide Pyatyi to regulate between 20~60mm, and the spacing of every two-stage is 10mm.
Example 2: shown in Fig. 1-6, this environment-friendly type hand-push type lawn grass mower is by transfer bar mechanism, the frame mechanism (10) that band seesaws and takes turns, cover in the casing on the frame, and the speed increasing mechanism, movement conversion mechanism and the executing agency that are loaded on the frame form, speed increasing mechanism is a gear drive, and movement conversion mechanism is the cam lever body, and cutting careless executing agency is slide block guide rail mechanism.Use for convenience, cutting-height governor motion (16) also is housed on the frame; Transfer bar mechanism is foldable structure or stretching structure, and by push rod (11), telescoping tube (12), folding fastening wing nut (13) is formed.
Gear drive is by the gear wheel (2) that is installed on the hind axle, and the bearing block (14) that is loaded on the frame upward and with the gear shaft (3) of pinion is formed; Module is 2, and the gearratio of large and small gear is 2.The cam lever body is by the cam on left end face (4), the right side cam (15) that are installed in by screw thread on the gear shaft, and forms by the left and right sides driving lever (5) that T type groove and screw are installed on the slide block (6).The double wedge of edge cam is 10 teeth, left and right sides edge cam interlace a tooth, lean against and be fixed on privately on the gear shaft (3), contact on the double wedge flank of tooth of cam with the left and right sides driving lever (5) on being installed in slide block (6), form movement conversion mechanism, finish the conversion of spatial movement, with the conversion of cam be transformed to slide block about move back and forth.Slide block guide rail mechanism by slide block (6), guide rail (7), be fixed on the movable blades (8) on the slide block, the fixed blade (9) that is fixed on the guide rail is formed, guide rail is fixed on the frame, by the dovetail groove constrained motion, slide block and guide rail can only be done relatively reciprocating motion between slide block and the guide rail.Cutting-height governor motion (16) is by the hangers on the guide rail that is fixed on slide block guide rail mechanism (18), be fixed on the bearing bracket (19) on the frame, wing nut (20) is formed, the guide groove that to have with 7 spacings on the bearing bracket stand be the 8mm counterbore, hangers is set in the counterbore of bearing bracket stand upper rail, and is fixed by wing nut.The hangers that will be connected with cutter frame mechanism (slide block guide rail mechanism) is gone up along the guide groove on the bearing bracket stand (in the counterbore on guide groove) and is moved, and utilizes align member (wing nut) that hangers is locked at the diverse location in hole, has promptly finished the adjusting of blade cutting-height.
Promote the machine walking by the people during grass mower work, thereby the trailing wheel (1) of grass mower is rotated, drive gear wheel (2) rotation on the axle that coexists with it, the speed increasing mechanism of forming by gear wheel (2) and gear shaft (3) is promoted speed, and drive cam on left end face (4) revolution, cam on left end face (4) drives left and right sides driving lever (5) motion, the switching mechanism of forming by cam on left end face (4) and left and right sides driving lever (5) becomes straight reciprocating motion with gyration, make the movable blades fixed on it form relative crisscross motion, finish and cut the grass action with fixed blade on being fixed on frame.
When cutting-height is regulated, unclamp the wing nut (20) of the right and left earlier, knife rest can be moved freely on the guide groove of bearing bracket stand, then according to the selected counterbore of the requirement of cutting-height, hangers (18) is moved to corresponding position, and tighten wing nut (20), both finished the adjusting of cutting-height.The cutting-height of this device has been adjusted to level and has regulated, and can divide seven grades of adjustings between 20~68mm, and the spacing of every two-stage is 8mm.
Example 3: shown in Fig. 1-6, this environment-friendly type hand-push type lawn grass mower is by transfer bar mechanism, the frame mechanism (10) that band seesaws and takes turns, cover in the casing on the frame, and the speed increasing mechanism, movement conversion mechanism and the executing agency that are loaded on the frame form, speed increasing mechanism is a gear drive, and movement conversion mechanism is the cam lever body, and cutting careless executing agency is slide block guide rail mechanism.Use for convenience, cutting-height governor motion (16) also is housed on the frame.
Gear drive is by the gear wheel (2) that is installed on the hind axle, and the bearing block (14) that is loaded on the frame upward and with the gear shaft (3) of pinion is formed; Module is 2, and the gearratio of large and small gear is 3.The cam lever body is by the cam on left end face (4), the right side cam (15) that are fixedly mounted on by key on the gear shaft, and forms by the left and right sides driving lever (5) that T type groove and screw are installed on the slide block (6).The double wedge of edge cam is 8 teeth, left and right sides edge cam interlace a tooth, lean against and be fixed on privately on the gear shaft (3), contact on the double wedge flank of tooth of cam with the left and right sides driving lever (5) on being installed in slide block (6), form movement conversion mechanism, finish the conversion of spatial movement, with the conversion of cam be transformed to slide block about move back and forth.Slide block guide rail mechanism by slide block (6), guide rail (7), be fixed on the movable blades (8) on the slide block, the fixed blade (9) that is fixed on the guide rail is formed, guide rail is fixed on the frame, by the dovetail groove constrained motion, slide block and guide rail can only be done relatively reciprocating motion between slide block and the guide rail.Cutting-height governor motion (16) is by the hangers on the guide rail that is fixed on slide block guide rail mechanism (18), be fixed on the bearing bracket (19) on the frame, wing nut (20) is formed, the guide groove that to have with 4 spacings on the bearing bracket stand be the 12mm counterbore, hangers is set in the counterbore of bearing bracket stand upper rail, and is fixed by wing nut.The hangers that will be connected with cutter frame mechanism (slide block guide rail mechanism) is gone up along the guide groove on the bearing bracket stand (in the counterbore on guide groove) and is moved, and utilizes align member (wing nut) that hangers is locked at the diverse location in hole, has promptly finished the adjusting of blade cutting-height.
Promote the machine walking by the people during grass mower work, thereby the trailing wheel (1) of grass mower is rotated, drive gear wheel (2) rotation on the axle that coexists with it, the speed increasing mechanism of forming by gear wheel (2) and gear shaft (3) is promoted speed, and drive cam on left end face (4) revolution, cam on left end face (4) drives left and right sides driving lever (5) motion, the switching mechanism of forming by cam on left end face (4) and left and right sides driving lever (5) becomes straight reciprocating motion with gyration, make the movable blades fixed on it form relative crisscross motion, finish and cut the grass action with fixed blade on being fixed on frame.
When cutting-height is regulated, unclamp the wing nut (20) of the right and left earlier, knife rest can be moved freely on the guide groove of bearing bracket stand, then according to the selected counterbore of the requirement of cutting-height, hangers (18) is moved to corresponding position, and tighten wing nut (20), both finished the adjusting of cutting-height.The cutting-height of this device has been adjusted to level and has regulated, and can divide level Four to regulate between 20~56mm, and the spacing of every two-stage is 12mm.