CN212464132U

CN212464132U - Radian-adjustable hedgerow trimming device

Info

Publication number: CN212464132U
Application number: CN202020892791.4U
Authority: CN
Inventors: 潘正均
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-02-05
Anticipated expiration: 2030-05-25

Abstract

The utility model provides a radian adjustable hedgerow trimming means belongs to hedgerow trimming means technical field. The hedgerow trimming device solves the problem that the reciprocating motion of the movable blade in the existing hedgerow trimming device is inflexible, so that the hedgerow trimming effect is poor. This radian adjustable hedgerow trimming means, including the articulated sword festival unit that sets up in proper order of a plurality of, be equipped with the accent arc drive structure on the sword festival unit of a tip, be equipped with between the two adjacent sword festival units and be used for driving the accent arc execution structure that the relative sword festival unit of each sword festival unit was raised up or was pitched down with the same angle when transferring arc drive structure during operation, all be equipped with fixed sword on every sword festival unit, the movable sword and be used for the drive to be located the drive assembly that the relative fixed sword of movable sword on the same sword festival unit was shearing motion with it, a plurality of fixed sword homonymy sets up. The utility model discloses well each movable blade adopts independent drive assembly, has effectively guaranteed movable blade reciprocating motion's flexibility to improve the pruning effect to the hedgerow.

Description

Radian-adjustable hedgerow trimming device

Technical Field

The utility model belongs to the technical field of the hedgerow pruning equipment, a radian adjustable hedgerow trimming means is related to.

Background

In order to facilitate trimming of spherical hedges with different diameters, the applicant proposes a spherical hedge cutter with adjustable radian and a hedge trimming device [ with an authorization publication number of CN209449288U ] and a national patent office in 2018, 12 and 4, wherein the spherical hedge cutter is provided with a fixed cutter joint and a plurality of adjustable cutter joints which are sequentially hinged, and the adjustable cutter joint at one end part is hinged with the fixed cutter joint; the fixed cutter joint is provided with an arc adjusting driving mechanism, the movable cutter joint is provided with an arc adjusting actuating mechanism, the arc adjusting driving mechanism is sequentially hinged with each arc adjusting actuating mechanism, and when the arc adjusting driving mechanism works, each adjustable cutter joint is driven to lift up or tilt down at the same angle relative to the previous cutter joint, so that the effect of adjusting the radian of the spherical hedgerow cutter is achieved.

Wherein, all set up fixed sword and movable edge on every sword festival, the adjacent lateral part of each movable edge is articulated in proper order, drives its reciprocating motion by the cutting edge actuating mechanism who sets up in fixed sword festival. When each adjustable cutter joint is bent downwards at the same angle relative to the previous cutter joint, the reciprocating directions of two adjacent movable blades are not on the same straight line, so that the reciprocating motion of the movable blade which is farther away from the blade driving mechanism is more inflexible, and the trimming effect of the hedgerow is influenced; but also causes the two adjacent movable edges to loosen, resulting in failure of the drive to the movable edges.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a prune effectual radian adjustable hedgerow trimming means.

The purpose of the utility model can be realized by the following technical proposal:

the radian-adjustable hedge trimming device comprises a plurality of cutter joint units which are sequentially hinged, an arc adjustment driving structure is arranged on the cutter joint unit at one end, an arc adjustment executing structure which is used for driving each cutter joint unit to lift up or bow down at the same angle relative to the previous cutter joint unit when the arc adjustment driving structure works is arranged between two adjacent cutter joint units, each cutter joint unit is provided with a fixed blade, a movable blade and a driving component which is used for driving the movable blade which is positioned on the same cutter joint unit to do shearing motion relative to the fixed blade, and the fixed blades are arranged on the same side. A driving component is arranged on each cutter joint unit and is used for independently driving the action of the movable blade, so that the trimming effect of the hedge trimming device is improved.

In the radian-adjustable hedge trimming device, the cutter section unit comprises a fixed cutter plate, one end edge of the fixed cutter plate is provided with the fixed blade, one side surface of the fixed cutter plate is provided with a cutter handle driven by a driving assembly, and the movable blade is positioned at one end of the cutter handle close to the fixed blade. The fixed cutting board is provided with two oppositely arranged end edges, two oppositely arranged side edges and two oppositely arranged side surfaces, and the side edges of the fixed cutting board are hinged with the side edges of the fixed cutting board which is adjacently arranged. The driving component drives the knife handle to translate or swing on the side surface of the fixed knife board, so that the movable blade is driven to do shearing motion relative to the fixed blade.

In the hedgerow trimming device with the adjustable radian, the driving assembly comprises a fixed iron core fixed on the side surface of the fixed cutting board, an electromagnetic coil wound on the fixed iron core and an iron core part arranged on the cutter handle, the end part of the fixed iron core is opposite to the iron core part, and an elastic reset piece is arranged between the fixed iron core and the iron core part.

During operation, pulse current passes through electromagnetic coil, makes fixed iron core intermittent type nature produce to the magnetic attraction of iron core portion, and cooperation elasticity resets and makes iron core portion reciprocating motion to drive handle and movable blade reciprocating motion. The elastic return member may be a spring, one end of which acts on the fixed core and the other end of which acts on the core portion. When the fixed iron core has magnetic attraction, the attraction iron core part is close to the fixed iron core, and the spring is compressed at the moment; when the magnetic attraction of the fixed iron core disappears, the iron core part is far away from the fixed iron core under the action of the spring.

In the hedge trimming device with the adjustable radian, one end of the cutter handle, which is far away from the movable blade, is hinged with the fixed cutter plate. The articulated shaft has been linked firmly perpendicularly on a side of fixed cutting board, and the one end that the handle of a knife kept away from the activity sword has the hole of cover setting to the articulated shaft, and the handle of a knife is round the articulated shaft swing under drive assembly's effect.

In the hedgerow trimming device with adjustable radian, the fixed knife board is provided with a fixed frame, the fixed frame is positioned at one side of the fixed knife board provided with the movable blade, and the arc adjusting execution structure is arranged between two adjacent fixed frames.

In the above radian-adjustable hedge trimming device, the arc adjustment executing structure includes a first joint arm disposed on the fixing frame of the previous cutter joint unit and a second joint arm disposed on the fixing frame of the next cutter joint unit, the first joint arm includes a first gear portion whose central shaft is rotatably connected to the fixing frame disposed correspondingly thereto and a first rocker portion fixed to the first gear portion, the second joint arm includes a second gear portion whose central shaft is rotatably connected to the fixing frame disposed correspondingly thereto and a second rocker portion fixed to the second gear portion, one end of the first rocker portion, which is far away from the first gear portion, is hinged to one end of the second rocker portion, which is far away from the second gear portion, and the second gear portion, which is located in the previous arc adjustment executing structure, is meshed with the first gear portion located in the next arc adjustment executing structure.

The first articulated arm and the second articulated arm in the same arc adjusting execution structure are same in structure and are symmetrically arranged, and the first articulated arm and the second articulated arm arranged on the same fixing frame are symmetrically arranged. The distance between the middle shaft of the first gear part and the middle shaft of the second gear part is changed by changing the included angle between the first joint arm and the second joint arm, so that the purpose of changing the included angle between two adjacent fixed knife boards is achieved. The larger the included angle between two adjacent fixed knife boards is, the smaller the diameter of the trimmed spherical hedgerow is. The fixed edges are in a sawtooth shape, and the central axis of the first gear part/the second gear part is perpendicular to the arrangement direction of the fixed edges.

In the above hedge trimming device with adjustable radian, the arc adjustment driving structure includes a right-angle motor disposed on the first blade unit and a worm driven by the right-angle motor, and the worm is engaged with the first gear portion of the first joint arm disposed on the blade unit. The worm rotates around self axis under the effect of right angle motor, because the worm and the meshing of first gear portion will drive first articulated arm and rotate around the axis of first gear portion.

In the hedgerow trimming device with adjustable radian, the hedgerow trimming device further comprises a fixed seat, a rotating shaft arranged on the fixed seat and a rotating structure used for driving the rotating shaft to rotate around the central axis of the rotating structure, and a fixed knife board positioned on the first section of knife section unit is fixedly connected with the rotating shaft.

In the hedge trimming device with adjustable radian, the rotating structure comprises a rotating motor fixed on the fixed seat, a driving gear coaxially and fixedly connected to an output shaft of the rotating motor and a driven gear coaxially and fixedly connected to the rotating shaft, and the driving gear is meshed with the driven gear. The diameter of driving gear is less than driven gear's diameter, and when the rotating electrical machines work, drive the driving gear and rotate, and the driving gear drives driven gear and rotates to it is rotatory around self axis to drive the pivot. When the rotating shaft rotates, the cutter section units which are sequentially hinged rotate around the central axis of the rotating shaft, and the fixed blade is positioned at the foremost end of each cutter section unit in the moving direction. In order to realize the connection of the rotating shaft, a plurality of bearings which are coaxially arranged and are fixedly connected with the outer ring and the fixed seat are arranged on the fixed seat, and the inner ring of each bearing is fixedly connected with the rotating shaft.

Compared with the prior art, this radian adjustable hedgerow trimming means has following advantage:

the spherical radian of the hedge trimming device can be conveniently adjusted, the requirements of the hedges of various sizes can be met, and convenience is provided for trimming the hedges; the movable blades in the blade section units are driven by independent driving assemblies, and the hedge trimming strength of the blade section units is the same, so that the hedge trimming effect is improved.

Drawings

Fig. 1 is a side view of a preferred embodiment of the present invention.

Fig. 2 is a top view of the cutter unit provided by the present invention.

Fig. 3 is another plan view of the cutter unit provided by the present invention.

In the figure, 1, a cutter section unit; 11. fixing the blade; 12. a movable blade; 121. a knife handle; 13. fixing a cutting board; 131. a fixed mount; 141. fixing the iron core; 142. an electromagnetic coil; 143. an iron core portion; 144. an elastic reset member; 151. a first gear portion; 152. a first swing arm portion; 161. a second gear portion; 162. a second swing arm portion; 171. a right-angle motor; 172. a worm; 181. a fixed seat; 182. a rotating shaft; 183. a rotating electric machine; 184. a driving gear; 185. a driven gear.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The radian-adjustable hedge trimming device shown in fig. 1 comprises a fixing seat 181, wherein two bearings which are coaxially arranged are arranged on the fixing seat 181, the outer rings of the bearings are fixedly connected with the fixing seat 181, and the inner rings of the bearings are coaxially fixedly connected with a rotating shaft 182. A rotating motor 183 is fixed on the fixed seat 181, an output shaft of the rotating motor 183 is vertically arranged, a driving gear 184 is coaxially and fixedly connected to the lower end of the output shaft, a rotating shaft 182 is parallel to the output shaft, a driven gear 185 with the diameter larger than that of the driving gear 184 is coaxially and fixedly connected to the rotating shaft 182, and the driving gear 184 is meshed with the driven gear 185.

As shown in fig. 1, the hedge trimming device with adjustable radian further comprises a plurality of cutter joint units 1 which are sequentially hinged, the cutter joint unit 1 positioned at the first section (i.e. the uppermost section) is provided with an arc adjustment driving structure, and an arc adjustment executing structure which is used for driving each cutter joint unit 1 to lift or tilt up at the same angle relative to the upper cutter joint unit 1 when the arc adjustment driving structure works is arranged between two adjacent cutter joint units 1. As shown in fig. 1, the cutter joint unit 1 includes a fixed cutting board 13 and a fixing frame 131 fixed on the upper side of the fixed cutting board 13, the fixing frame 131 is located at the rear end of the fixed cutting board 13, the arc adjustment executing structure is arranged between two adjacent fixing frames 131, and the right side of the fixed cutting board 13 is hinged to the left side of the fixed cutting board 13 adjacent to the right side. As shown in fig. 2 and 3, the fixed blade 13 has a fixed blade 11 at the front end thereof, a movable blade 12 above the fixed blade 11 for shearing movement relative to the fixed blade 11, and a driving assembly for driving the movable blade 12 of the fixed blade 13 to reciprocate is further provided on the upper side of each fixed blade 13.

As shown in fig. 2 and 3, a handle 121 is hinged to the upper side of the fixed knife plate 13 through a hinge shaft, the hinge shaft is disposed near the fixed frame 131, and the movable blade 12 is located at one end of the handle 121 far from the hinge shaft. The driving assembly includes a fixed iron core 141 fixed on the side of the fixed knife board 13, an electromagnetic coil 142 wound on the fixed iron core 141, and an iron core 143 disposed on the knife handle 121, wherein the end of the fixed iron core 141 is opposite to the iron core 143, and an elastic reset element 144 is disposed between the fixed iron core 141 and the iron core 143. When the electric tool works, pulse current passes through the electromagnetic coil 142, so that the fixed iron core 141 intermittently generates magnetic attraction force on the iron core part 143, and the iron core part 143 reciprocates in cooperation with the elastic resetting piece 144, thereby driving the handle and the movable blade 12 to reciprocate. The elastic restoring member 144 is a spring, one end of which acts on the fixed iron core 141 and the other end of which acts on the iron core 143. When the fixed iron core 141 has magnetic attraction, the attraction iron core part 143 approaches the fixed iron core 141, and the spring is compressed; when the magnetic attraction force of the stationary core 141 disappears, the core part 143 is separated from the stationary core 141 by the spring.

A cover plate with an open front end may be provided on the upper side of the fixed blade 13, the holder 121, the fixed iron core 141, the electromagnetic coil 142, the iron core 143, and the spring may be provided in the cover plate, and the movable blade 12 may be passed through the open front end of the cover plate. Due to the cover plate, the internal structure can be protected, meanwhile, the movement of the knife handle 121 can be limited, and the movable blade 12 and the fixed blade 11 can be accurately matched.

In this embodiment, as shown in fig. 1, the arc adjustment executing structure includes a first joint arm disposed on the fixing frame 131 of the previous knife joint unit 1 and a second joint arm disposed on the fixing frame 131 of the next knife joint unit 1, the first joint arm and the second joint arm in the same arc adjustment executing structure have the same structure and are symmetrically disposed, and the first joint arm and the second joint arm disposed on the same fixing frame 131 are symmetrically disposed. As shown in fig. 1, the first joint arm includes a first gear portion 151 whose central axis is rotatably connected to the fixing frame 131 disposed correspondingly thereto and a first rocker portion 152 fixed to the first gear portion 151, the second joint arm includes a second gear portion 161 whose central axis is rotatably connected to the fixing frame 131 disposed correspondingly thereto and a second rocker portion 162 fixed to the second gear portion 161, one end of the first rocker portion 152 remote from the first gear portion 151 is hinged to one end of the second rocker portion 162 remote from the second gear portion 161, and the second gear portion 161 located in the upper arc adjustment execution structure is engaged with the first gear portion 151 located in the lower arc adjustment execution structure.

The distance between the central axis of the first gear part 151 and the central axis of the second gear part 161 is changed by changing the included angle between the first joint arm and the second joint arm, so as to achieve the purpose of changing the included angle between two adjacent fixed knife boards 13. The larger the included angle between two adjacent fixed knife boards 13 is, the smaller the diameter of the sheared spherical hedgerow is.

As shown in fig. 1, the arc adjustment driving structure includes a right-angle motor 171 provided on the first joint unit 1 and a worm 172 driven by the right-angle motor 171, and the worm 172 is engaged with the first gear portion 151 of the first joint arm provided on the first joint unit 1. The worm 172 rotates around its central axis under the action of the right-angle motor 171, and the worm 172 is engaged with the first gear part 151, so that the first articulated arm is driven to rotate around the central axis of the first gear part 151.

During the use, can be connected to handheld device or vehicle-mounted device with fixing base 181 on, can hand the realization and prune small-size hedgerow, also can prune large-scale hedgerow on-vehicle realization.

Before the hedge trimmer works, the spherical radian of the hedge trimmer is adjusted directly according to the hedge to be trimmed, the adjustment method is that the right-angle motor 171 is started, the right-angle motor 171 drives the worm 172 to rotate, the worm 172 drives the first joint arm to move, the first joint arm drives the second joint arm to move, and finally the adjustment of the spherical radian of the hedge trimmer is achieved. When the rotary cutter is in operation, the rotary motor 183 is started, the rotary motor 183 drives the driving gear 184 to rotate, the driving gear 184 drives the driven gear 185 to rotate, and the driven gear 185 drives the rotating shaft 182 to rotate, so that the arc-shaped member formed by each cutter unit 1 is driven to rotate. Meanwhile, the pulse current passes through the electromagnetic coil 142, so that the fixed iron core 141 intermittently generates magnetic attraction force on the iron core 143, and the iron core 143 reciprocates in cooperation with the spring, thereby driving the handle and the movable blade 12 to reciprocate, and the movable blade 12 performs shearing action relative to the fixed blade 11 to trim the hedgerow.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The radian-adjustable hedge trimming device comprises a plurality of cutter joint units (1) which are sequentially hinged, wherein an arc adjustment driving structure is arranged on each cutter joint unit (1) at one end, and an arc adjustment executing structure which is used for driving each cutter joint unit (1) to lift up or bow down at the same angle relative to the previous cutter joint unit (1) when the arc adjustment driving structure works is arranged between every two adjacent cutter joint units (1).

2. The adjustable-radian hedge trimming device according to claim 1, wherein the blade section unit (1) comprises a fixed blade (13), the fixed blade (11) is disposed at one end of the fixed blade (13), a handle (121) driven by the driving assembly is disposed at one side of the fixed blade (13), and the movable blade (12) is disposed at one end of the handle (121) close to the fixed blade (11).

3. The adjustable arc hedge trimmer according to claim 2, characterized in that the driving assembly comprises a fixed iron core (141) fixed on the side of the fixed knife plate (13), an electromagnetic coil (142) wound around the fixed iron core (141), and an iron core (143) disposed on the knife handle (121), the end of the fixed iron core (141) is disposed opposite to the iron core (143), and an elastic reset member (144) is disposed between the fixed iron core (141) and the iron core (143).

4. An adjustable arc hedge trimmer according to claim 2 or 3, characterized in that the end of the handle (121) remote from the movable blade (12) is hinged to the fixed blade (13).

5. An adjustable arc hedge trimmer according to claim 2, characterized in that the fixed blade (13) is provided with a fixed frame (131), the fixed frame (131) is located at the side of the fixed blade (13) where the movable blade (12) is located, and the arc adjustment actuating structure is located between two adjacent fixed frames (131).

6. The adjustable arc hedge trimming apparatus according to claim 5, wherein the arc adjustment executing structure comprises a first joint arm disposed on the fixing frame (131) of the previous cutter joint unit (1) and a second joint arm disposed on the fixing frame (131) of the next cutter joint unit (1), the first joint arm comprises a first gear portion (151) rotatably connected to the fixing frame (131) corresponding to the central shaft and a first swing arm portion (152) fixed on the first gear portion (151), the second joint arm comprises a second gear portion (161) rotatably connected to the fixing frame (131) corresponding to the central shaft and a second swing arm portion (162) fixed on the second gear portion (161), an end of the first swing arm portion (152) far away from the first gear portion (151) is hinged to an end of the second swing arm portion (162) far away from the second gear portion (161), the second gear part (161) located in the previous arc adjustment performing structure is meshed with the first gear part (151) located in the next arc adjustment performing structure.

7. An adjustable arc hedge trimmer according to claim 6, characterized in that the arc adjustment drive comprises a right angle motor (171) arranged on the first joint unit (1) and a worm (172) driven by the right angle motor (171), the worm (172) meshing with the first gear part (151) of the first joint arm arranged on the first joint unit (1).

8. The adjustable arc hedge trimming apparatus according to claim 2, further comprising a fixing base (181), a rotating shaft (182) disposed on the fixing base (181), and a rotating structure for driving the rotating shaft (182) to rotate around its central axis, wherein the fixed knife plate (13) disposed on the first-stage knife section unit (1) is fixedly connected to the rotating shaft (182).

9. An adjustable arc hedge trimmer according to claim 8 wherein the rotary mechanism comprises a rotary motor (183) fixed to the fixed mount (181), a drive gear (184) coaxially attached to the output shaft of the rotary motor (183), and a driven gear (185) coaxially attached to the shaft (182), the drive gear (184) meshing with the driven gear (185).