CN112772188B

CN112772188B - Hand-held fuel hedge trimmer for garden greening trimming

Info

Publication number: CN112772188B
Application number: CN202110084793.XA
Authority: CN
Inventors: 沈军民
Original assignee: Jiangsu Yuanping Garden Construction Co ltd
Current assignee: Shaanxi Yiqian Construction Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-07-29
Anticipated expiration: 2041-01-22
Also published as: CN112772188A

Abstract

The invention relates to the technical field of garden maintenance equipment and discloses a fuel oil type handheld hedge trimmer for garden greening trimming. This handheld hedge trimmer of afforestation pruning fuel formula, through the spliced pole, the flexible of transmission shaft and turn to knot and the rotation of reversing shaft realize the angle and the position control of tool bit assembly, make the tool bit assembly comply with the appearance of vegetation and adjust, when using, make the engine maintain near waist position all the time, reduce the physical demands of during operation, secondly, when needing angle adjustment, only need stir the adjustment that the angle can be accomplished immediately to the steering wheel, and the work efficiency is improved, also lower violation operation's probability, on the other hand, after loosening the stirring frame, the steering wheel becomes a whole, utilize the drive wheel rotation direction's of both sides different, make the steering wheel have the locking function, guarantee the maintenance of the angle after the adjustment.

Description

Hand-held fuel hedge trimmer for garden greening trimming

Technical Field

The invention relates to the technical field of garden maintenance equipment, in particular to a fuel oil type handheld hedge trimmer for garden greening trimming.

Background

The hedge trimmer is mainly used for tea trimming, garden trimming, roadside hedges and other landscaping aspects, the hedge trimmer is provided with an electric drive and an oil-fired machine drive, generally speaking, the electric drive is light and handy, the direction of a cutter can be adjusted to adapt to the shape of green plants, the use is more convenient, the oil-fired machine is heavy, the direction of the cutter can not be adjusted generally, but the oil-fired machine can be continuously used for a longer time, and the application range of the oil-fired machine is wider than that of the electric drive.

The application of handheld hedge trimmer is far more than that of vehicle-mounted hedge trimmer due to the application occasions of hedge trimmer, but because the fuel oil engine is heavier and the cutter direction can not be adjusted, in some occasions, if under the higher circumstances of green planting, operating personnel probably need to lift the hedge trimmer and operate, the tiredness degree of the high-lift operation will be far more than the operation of keeping level, its flexibility of use will be far less than electric drive, there is great inconvenience.

Secondly, when using the electric-driven hedge trimmer, need to shut down when adjusting the cutter direction, reuse after adjusting the cutter direction, on one hand, comparatively inconvenient, influence work efficiency, especially for anomalous vegetation, probably need frequently to shut down and adjust the direction, on the other hand, in order to accelerate work efficiency, there is the possibility of illegal operation, adjust under the circumstances that does not shut down promptly, there is the possibility of accidental injury.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the technical scheme of the fuel oil type handheld hedge trimmer for garden greening trimming, which has the advantages of convenience in use, automatic adjustment of the angle of a cutter and the like, and solves the problems in the background technology.

The invention provides the following technical scheme: a fuel oil type handheld hedge trimmer for garden greening trimming comprises an engine, a cutter head assembly and a gear box, wherein a connecting column is fixedly connected with the engine, a transmission shaft is sleeved in the connecting column and is in transmission connection with a slant shaft through a sector gear, the transmission shaft and the slant shaft are perpendicularly arranged, the connecting column comprises a shell for accommodating the transmission shaft and the sector gear of the slant shaft, the shell of the connecting column is movably connected with a steering joint, a reversing shaft is assembled on the steering joint and is in transmission connection with the slant shaft through the sector gear, the slant shaft and the reversing shaft are perpendicularly arranged, the reversing shaft is in transmission connection with an adjusting shaft, the adjusting shaft is in transmission connection with the gear box, middle teeth and a steering wheel are arranged on the shell of the connecting column, annular teeth are arranged at the bottom of the steering joint, and the steering wheel is in transmission connection with the annular teeth through the middle teeth, the steering wheel is in transmission connection with the transmission shaft, and a clutch structure is arranged between the steering wheel and the transmission shaft to control transmission between the steering wheel and the transmission shaft.

Preferably, the direction adjusting wheel and the middle teeth are provided with two symmetrical groups of gears, the transmission shaft is in transmission connection with the direction adjusting wheel through an oblique shaft, and the direction adjusting wheel is perpendicular to the transmission shaft.

Preferably, the direction-adjusting wheel comprises driving wheels arranged on two sides of the connecting column, the driving wheels are fixedly connected with a connecting pipe, driven gears are movably sleeved on the connecting pipe, tooth grooves matched with each other are formed in the end faces of the driven gears and the connecting pipe, the two driven gears are movably connected through a connecting rod, the connecting rod and the driven gears can transversely move but can synchronously rotate, the end faces of the two driven gears are both connected with a stirring frame used for pushing the driven gears, and the oblique shaft can be selectively in meshing transmission with one of the driven gears through a helical gear.

Preferably, the spliced pole includes first outer tube, second outer tube and inner tube, first outer tube and second outer tube cover are established on the inner tube, be equipped with anti-skidding groove on the inner tube, the terminal surface of first outer tube is connected with fixed cover, and fixed cover is equipped with the latch with anti-skidding groove adaptation, one side of fixed cover is equipped with the hoop, the transmission shaft includes axle and outer axle, and the internal and external axle passes through the tooth's socket cooperation.

The invention has the following beneficial effects:

1. this handheld hedge trimmer of afforestation pruning fuel formula, through the angle and the position control that the flexible and the rotation that turns to knot and steering shaft of spliced pole, transmission shaft realized the tool bit assembly, make the tool bit assembly comply with the appearance of vegetation and adjust, when using, make the engine maintain near waist position all the time, the slope through spliced pole and transmission shaft and the rotation of gear box make the tool bit assembly be in the best operating position, reduce the physical demands of during operation, improve the flexibility.

2. This handheld hedge trimmer of afforestation pruning fuel formula, when needs angle modulation, only need stir the steering wheel and can accomplish the adjustment of angle immediately, improve work efficiency, also reduce the probability of violation operation, on the other hand, loosen and dial the frame after, the steering wheel becomes a whole, utilizes the difference of the drive wheel rotation direction of both sides, makes the steering wheel have the locking function, guarantees the maintenance of the angle after the adjustment.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the structure of a transmission shaft, an oblique shaft and a reversing shaft of the present invention;

FIG. 3 is a schematic structural view of a direction-adjusting wheel according to the present invention;

FIG. 4 is a schematic structural view of a connecting column of the present invention;

Fig. 5 is a sectional view of a propeller shaft according to the present invention.

In the figure: 1. an engine; 2. a tool bit assembly; 3. a gear case; 4. connecting columns; 41. a first outer tube; 42. a second outer tube; 43. an inner tube; 44. an anti-slip groove; 45. fixing a sleeve; 46. a hoop; 5. a drive shaft; 6. an oblique axis; 7. a reversing shaft; 8. an adjustment shaft; 9. an annular tooth; 10. a steering knuckle; 11. a middle tooth; 12. a direction adjusting wheel; 121. a driving wheel; 122. a connecting pipe; 123. a driven gear; 124. a connecting rod; 125. a poking frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a fuel-fired handheld hedge trimmer for garden greening pruning comprises an engine 1, a cutter head assembly 2 and a gear box 3, wherein a connecting column 4 is fixedly connected with the engine 1, a transmission shaft 5 is sleeved in the connecting column 4, the transmission shaft 5 is in transmission connection with the engine 1, a handle and a shoulder strap are fixedly connected to the outer side wall of the connecting column 4, the transmission shaft 5 is in transmission connection with an inclined shaft 6 through a sector gear, the transmission shaft 5 and the inclined shaft 6 are vertically arranged, the connecting column 4 comprises a shell for accommodating the sector gear of the transmission shaft 5 and the sector gear of the inclined shaft 6, the inclined shaft 6 is assembled on the shell, a steering joint 10 is movably connected to the shell of the connecting column 4, a reversing shaft 7 is assembled on the steering joint 10, the reversing shaft 7 is in transmission connection with the inclined shaft 6 through the sector gear, the inclined shaft 6 is vertically arranged with the reversing shaft 7, and an included angle between the reversing shaft 7 and the inclined shaft 6 changes along with the rotation of the steering joint 10, but the transmission between the inclined shaft 6 and the reversing shaft 7 is not influenced, the reversing shaft 7 is provided with an adjusting shaft 8 in transmission, a proper gear is arranged between the reversing shaft 7 and the adjusting shaft 8 to adjust the direction of an output shaft, the adjusting shaft 8 is in transmission connection with the gear box 3, a shell of the gear box 3 is fixedly connected with a steering joint 10 through a bolt and rotates along with the rotation of the steering joint 10, a middle gear 11 and a steering wheel 12 are arranged on the shell of the connecting column 4, the bottom of the steering joint 10 is provided with an annular gear 9, the steering wheel 12 is in transmission connection with the annular gear 9 through the middle gear 11, the steering wheel 12 is in transmission connection with the transmission shaft 5, a clutch structure is arranged between the steering wheel 12 and the transmission shaft 5 to control the transmission between the steering wheel 12 and the transmission shaft 5, and further control the direction adjustment of the steering joint 10.

Wherein, transfer to wheel 12 and middle tooth 11 all are equipped with two sets of gears of symmetry, and transmission shaft 5 is connected with transfer to wheel 12 transmission through oblique axle 6, transfers to wheel 12 and perpendicular with transmission shaft 5, makes it and transmission shaft 5 not produce the coincidence, does not have the interference each other to when not transmitting, the meshing of annular tooth 9, middle tooth 11 and transfer to wheel 12 realizes locking, avoids rocking, and when transmitting, releases one side to the adjustment direction.

Referring to fig. 3, wherein the direction-adjusting wheel 12 includes driving wheels 121 disposed on both sides of the connecting column 4, the driving wheels 121 are fixedly connected with a connecting pipe 122, a driven gear 123 is movably sleeved on the connecting pipe 122, the end surfaces of the driven gear 123 and the connecting pipe 122 are provided with tooth spaces that are matched with each other, transmission is achieved when the connecting pipe is pressed, the two driven gears 123 are movably connected through a connecting rod 124, the connecting rod 124 and the driven gears 123 can move transversely but rotate synchronously, the connecting rod 124 is sleeved with a compressed spring, so that the two driven gears 123 are pressed against the end surface of the connecting pipe 122, the end surfaces of the two driven gears 123 are both connected with a toggle frame 125 for pushing the driven gears 123, the toggle frame 125 is attached to the end surfaces of the driven gears 123 through a thrust bearing, the oblique shaft 6 can be selectively engaged with one of the driven gears 123 through a helical gear, and in a natural state, the two driven gears 123 are sprung open by the spring, the end face is meshed with the bottom of the connecting pipe 122, the driving wheels 121 and the annular teeth 9 are kept in a driving state, the driving wheels 121 on the two sides rotate in different directions, the locking state is kept, the required angle is maintained, when the angle is required to be adjusted, the stirring frame 125 is pushed, one driven gear 123 is selected to be in meshed transmission with the inclined shaft 6, and meanwhile the other driven gear 123 can rotate freely, so that the angle can be adjusted freely.

Referring to fig. 4, wherein the connecting column 4 includes a first outer tube 41, a second outer tube 42 and an inner tube 43, the first outer tube 41 is connected to the engine 1, the second outer tube 42 is close to the tool bit assembly 2, the first outer tube 41 and the second outer tube 42 are sleeved on the inner tube 43, the second outer tube 42 is fixedly connected to the inner tube 43, the inner tube 43 is provided with an anti-slip groove 44, the end surface of the first outer tube 41 is connected to a fixing sleeve 45, the fixing sleeve 45 is provided with a latch adapted to the anti-slip groove 44, one side of the fixing sleeve 45 is provided with a hoop 46, the hoop 46 hoops the fixing sleeve 45, so that the latch and the anti-slip groove 44 cooperate to block the inner tube 43, thereby realizing the extension and retraction of the connecting column 4, the transmission shaft 5 includes an inner shaft and an outer shaft, the inner shaft and the outer shaft cooperate through a tooth space to make the inner shaft and the outer shaft stretchable while maintaining synchronous rotation, when using the hedge machine, the angle adjustment between the extension and the tool bit assembly 2 of the connecting column 4 is used to keep the engine 1 at the waist position all the time, the labor-saving working posture is kept.

The working principle and the working process of the invention are as follows:

during operation, when the angle of the cutter head assembly 2 needs to be adjusted, the driven gear 123 is shifted through the shifting frame 125, the driven gear 123 on one side is rotated to drive the driving wheel 121 on the side to drive the steering knuckle 10 to rotate, the shifting frame 125 is loosened after the adjustment is in place, the two driven gears 123 are meshed with the connecting pipe 122, the locking is realized, the angle of the steering knuckle 10 is further fixed, and the angle adjustment is completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hedge trimmer is handed to afforestation pruning fuel formula, includes engine (1), tool bit assembly (2) and gear box (3), its characterized in that: the utility model discloses an engine, engine (1) fixedly connected with spliced pole (4), the lateral wall fixedly connected with handle and the baldric of spliced pole (4), the inside cover of spliced pole (4) is equipped with transmission shaft (5), transmission shaft (5) are connected with slant axle (6) transmission through sector gear, and transmission shaft (5) and slant axle (6) set up perpendicularly, spliced pole (4) are including the casing that holds transmission shaft (5) and slant axle (6) sector gear, the casing swing joint of spliced pole (4) turns to knot (10), turn to and be equipped with reversing shaft (7) on knot (10), reversing shaft (7) are connected through sector gear transmission with slant axle (6), slant axle (6) are perpendicular setting with reversing shaft (7), reversing shaft (7) transmission has adjustment axle (8), adjustment axle (8) are connected with gear box (3) transmission, be equipped with middle tooth (11) and accent to wheel (12) on the casing of spliced pole (4), the bottom that turns to knot (10) is equipped with annular tooth (9), it is connected with annular tooth (9) transmission through middle tooth (11) to transfer to wheel (12), it is connected with transmission shaft (5) transmission to transfer to wheel (12), it is equipped with the separation and reunion structure in order to control the transmission between wheel (12) and transmission shaft (5) to transfer to, spliced pole (4) are including first outer tube (41), second outer tube (42) and inner tube (43), first outer tube (41) and second outer tube (42) cover are established on inner tube (43), be equipped with on inner tube (43) antiskid groove (44), the terminal surface of first outer tube (41) is connected with fixed cover (45), and fixed cover (45) are equipped with the latch with antiskid groove (44) adaptation, one side of fixed cover (45) is equipped with hoop (46), transmission shaft (5) are including interior axle and outer axle, and interior and exterior axle passes through the tooth's socket cooperation, it all is equipped with two sets of gears of symmetry to transfer to wheel (12) and middle tooth (11), transmission shaft (5) are connected with transferring to wheel (12) transmission through slant axle (6), it is perpendicular with transmission shaft (5) to transfer to wheel (12).

2. The garden greening trimming fuel oil type handheld hedge trimmer according to claim 1, characterized in that: the steering wheel (12) comprises driving wheels (121) arranged on two sides of a connecting column (4), a connecting pipe (122) is fixedly connected to each driving wheel (121), a driven gear (123) is movably sleeved on the connecting pipe (122), tooth grooves matched with each other are formed in the end faces of the driven gear (123) and the connecting pipe (122), the two driven gears (123) are movably connected through a connecting rod (124), the connecting rod (124) and the driven gear (123) can move transversely but rotate synchronously, the end faces of the two driven gears (123) are connected with a stirring frame (125) used for pushing the driven gear (123), and the oblique shaft (6) can be in meshing transmission with one driven gear (123) through a helical gear selectively.