CN210328612U - High altitude pruning scissors - Google Patents

Abstract

The utility model discloses a pair of high altitude pruning shears, including upper boom, drive arrangement and resetting means, the upper boom is the rectangular cylinder body that the right-hand member offered the logical groove, and the bottom alternates in the inside of extension rod, and upper boom and extension rod pass through fixing device to be fixed, the welding of upper end one side of upper boom has fixed blade, the top of upper boom is offered the cylindricality breach with logical groove intercommunication, install first axis of rotation through the bearing rotation in the cylindricality breach, the outside of first axis of rotation has cup jointed special-shaped gear, special-shaped gear upper end is the face of cylinder, the lower extreme is the teeth of a cogwheel; the cylindrical surface of the special-shaped gear is fixed with a movable knife which passes through the cylindrical notch and is matched with the fixed blade for use. This high altitude pruning scissors adopts the mode of upper boom and extension rod combination to stretch out and draw back, and application scope is wider, utilizes drive arrangement to drive the removal sword and can control the pruning process at the removal angle internal rotation, utilizes resetting means to reset drive arrangement, is favorable to going on of next pruning process, convenient to use.

Description

High altitude pruning scissors

Technical Field

The utility model relates to a garden machine technical field specifically is a high altitude pruning scissors.

Background

Fruit growers often need to prune fruit trees in order to regulate their growth and fruiting. For a bigger fruit tree, the common pruning shears cannot be used for pruning a higher part of the fruit tree, so that the high-altitude pruning shears need to be used, but the existing high-altitude pruning shears all adopt a simple structure with a single telescopic rod and a pruning knife, the work of the pruning knife is difficult to control directly during pruning, the use is inconvenient, the pruning efficiency is reduced, and therefore the high-altitude pruning shears are provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a high altitude pruning scissors, the mode that adopts upper boom and extension rod combination is flexible, and application scope is wider, utilizes drive arrangement to drive the removal sword and can control the pruning process at the removal angle internal rotation, utilizes resetting means to reset drive arrangement, is favorable to going on of next pruning process, and convenient to use can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pair of high-altitude pruning shears comprises an upper rod, a driving device and a resetting device;

rod mounting: the upper rod and the extension rod are fixed through a fixing device;

a fixed blade is welded on one side of the upper end of the upper rod, a cylindrical notch communicated with the through groove is formed in the top end of the upper rod, a first rotating shaft is rotatably installed in the cylindrical notch through a bearing, a special-shaped gear is sleeved outside the first rotating shaft, the upper end of the special-shaped gear is a cylindrical surface, and the lower end of the special-shaped gear is a gear tooth; a movable knife is fixed on the cylindrical surface of the special-shaped gear, passes through the cylindrical notch and is matched with the fixed blade for use;

a driving device: the driving device comprises a first gear and a rotating handle, the first gear is rotatably arranged at the upper end inside the upper rod through a rotating shaft, and the first gear is connected with the special-shaped gear to enable the special-shaped gear to rotate;

resetting the device: it is arranged at the lower end of the extension rod and is connected with the rotating handle;

wherein: the extension rod is a hollow rectangular cylinder, and a bottom rod is fixed at the lower end of the extension rod.

As an optimized technical scheme of the utility model, the outside of sill bar is fixed with the handle, and being provided with of handle does benefit to the user and carries out handheld operation.

As a preferred technical scheme of the utility model, fixing device includes first screw, second screw and bolt, first screw evenly sets up the upper and lower both ends face at the upper and lower of upper boom, the second screw evenly sets up the upper and lower both ends face at the extension rod to first screw and second screw correspond the setting, are equipped with the bolt in first screw and the second screw, when needs prune the eminence branch, take off the bolt and stimulate the extension rod downwards, make the extension rod aim at the upper boom by the first screw of lower extreme by the second screw of upper end to fasten with the bolt.

As a preferred technical scheme of the utility model, the end of fixed blade is equipped with the arc and extends the sword, and being provided with of arc extension sword does benefit to and catches on the branch that needs the pruning and avoids the branch to appear rocking on a large scale, is favorable to going on of pruning.

As a preferred technical scheme of the utility model, drive arrangement still includes rack, second axis of rotation and second gear, the rack is established inside the upper boom and with first gear engagement, the second axis of rotation passes through the bearing and rotates and establish the inside lower extreme of upper boom, cup jointed the second gear with rack engagement in the second axis of rotation, and second axis of rotation one end extends to the upper boom outside and is connected with twist grip, artifical twist grip, make twist grip drive second axis of rotation and rotate and drive second gear rotation promptly, thereby make the rack reciprocate, thereby make first gear rotation, first gear rotation drives special-shaped gear rotation, thereby it rotates certain angle to drive the removal sword, cooperation fixed blade is pruned.

As a preferred technical scheme of the utility model, still include spout and slider, the spout is seted up in upper boom inner wall both sides, and the slider is fixed at the both ends of rack, and the rack passes through the slider and slides and establish between the spout, and the rack slides and sets up to be favorable to the rack to reciprocate.

As a preferred technical scheme of the utility model, resetting means includes that the cross-section is the erection column and the fixed column of T type, and erection column and fixed column level set up side by side on the upper rod surface, and torque spring has been cup jointed at the T type lower extreme of erection column, and this torque spring's upper end pin is fixed with twist grip, and torque spring's lower extreme pin and fixed column lower extreme fixed connection, twist grip roll over the upper end pin to torque spring in rotatory, and torque spring carries out the energy storage, and when loosening twist grip, torque spring release energy makes twist grip reset.

As a preferred technical scheme of the utility model, be fixed with the stay cord on the twist grip, the fixed one end of twist grip and torque spring's upper end pin is kept away from to the stay cord, when upper boom and extension rod are flexible, can utilize the pulling stay cord to make the twist grip rotate.

As an optimal technical scheme of the utility model, second axis of rotation, erection column and fixed column are isosceles right triangle and distribute, and the erection column distributes on right angle place summit, arc length between second axis of rotation and the fixed column is not more than the arc length that special-shaped gear contains teeth of a cogwheel one side, when twist grip is rotatory, forward rotation angle is ninety degrees, twist grip drives the second gear, the second gear drives the rack, the rack drives first gear, the turned angle that first gear drove special-shaped gear all keeps ninety degrees, avoid the condition that special-shaped gear and first gear engagement were interrupted to appear.

Compared with the prior art, the beneficial effects of the utility model are that: the high-altitude pruning shears have the following advantages:

1. utilize upper boom and extension rod to extend to utilize fixing device to fix after the extension, it is more firm to fix, is favorable to the pruning of higher branch after the extension, and application scope is wider, convenient to use.

2. The arc-shaped extension blade can hook the branches to be trimmed, so that the branches are prevented from shaking in a large range, and trimming is facilitated.

3. The rotating handle is twisted to enable the rotating handle to drive the second rotating shaft to rotate, namely, the second gear is driven to rotate, so that the rack is enabled to move up and down, the first gear is enabled to rotate, the first gear rotates to drive the special-shaped gear to rotate, the movable knife is driven to rotate by a certain angle, and the movable knife is matched with the fixed blade to trim. The manual operation does not need electricity, and is easy to use.

4. The upper end pin is folded towards the torsion spring when the rotary handle rotates, the torsion spring stores energy, and when the rotary handle is loosened, the torsion spring releases energy to enable the rotary handle to reset, so that the manual reset work is reduced, and the trimming efficiency is improved.

Drawings

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

FIG. 2 is a schematic view of the back structure of the present invention;

FIG. 3 is a schematic horizontal sectional view of the internal structure of the present invention;

FIG. 4 is a schematic vertical sectional view of the internal structure of the present invention;

fig. 5 is an enlarged schematic view of the structure at a position a of the present invention.

In the figure: the device comprises an upper rod 1, an extension rod 2, a bottom rod 3, a handle 31, a fixing device 4, a first screw hole 41, a second screw hole 42, a bolt 43, a fixed blade 5, an arc-shaped extension knife 51, a first rotating shaft 6, a special-shaped gear 7, a movable knife 8, a first gear 9, a rack 10, a second rotating shaft 11, a second gear 12, a sliding chute 13, a sliding block 14, a rotating handle 15, a mounting column 16, a fixing column 17, a torsion spring 18 and a pull rope 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a pair of high-altitude pruning shears comprises an upper rod 1, a driving device and a resetting device;

an upper rod 1: the tree pruning tool is a rectangular cylinder with a through groove at the right end, the bottom of the rectangular cylinder is inserted into the extension rod 2, the upper rod 1 and the extension rod 2 are fixed through the fixing device 4, the fixing device 4 comprises a first screw hole 41, a second screw hole 42 and a bolt 43, the first screw hole 41 is uniformly formed in the upper end surface and the lower end surface of the upper rod 1, the second screw hole 42 is uniformly formed in the upper end surface and the lower end surface of the extension rod 2, the first screw hole 41 and the second screw hole 42 are correspondingly arranged, the bolt 43 is arranged in the first screw hole 41 and the second screw hole 42, and when branches at a higher position need to be pruned, the bolt 43 is taken down to pull the extension rod 2 downwards; the second screw hole 42 near the upper end of the extension rod 2 is aligned to the first screw hole 41 near the lower end of the upper rod 1 and is fastened by a bolt 43, so that the fastening is convenient, the application range is wide after the extension, and the use is convenient;

the special-shaped tree pruning machine is characterized in that a fixed blade 5 is welded on one side of the upper end of an upper rod 1, an arc-shaped extension knife 51 is arranged at the tail end of the fixed blade 5, the arc-shaped extension knife 51 is used for hooking branches to be pruned, the branches are prevented from shaking in a large range, pruning is facilitated, a cylindrical notch communicated with a through groove is formed in the top end of the upper rod 1, a first rotating shaft 6 is rotatably installed in the cylindrical notch through a bearing, a special-shaped gear 7 is sleeved outside the first rotating shaft 6, the upper end of the special-shaped gear 7 is a; a movable knife 8 is fixed on the cylindrical surface of the special-shaped gear 7, the movable knife 8 penetrates through the cylindrical notch and is matched with the fixed blade 5 for use, and the movable knife 8 is matched with the fixed blade 5 for use to achieve the purpose of trimming;

a driving device: the driving device comprises a first gear 9 and a rotating handle 15, in order to avoid the rotating transition of the rotating handle 15, the rotating handle 15 can be arranged as a handle with four connecting rods, a limit rod is arranged in the anticlockwise direction of one rod and is closely attached to the corresponding upper rod 1, so that the rotating angle of the rotating handle 15 is kept within ninety degrees, the first gear 9 is rotatably arranged at the upper end in the upper rod 1 through a rotating shaft, the first gear 9 is connected with a special-shaped gear 7, so that the special-shaped gear 7 rotates, the driving device further comprises a rack 10, a second rotating shaft 11 and a second gear 12, the rack 10 is arranged in the upper rod 1 and is meshed with the first gear 9, the gear radiuses of the special-shaped gear 7, the first gear 9 and the second gear 12 are the same when in specific use, the second rotating shaft 11 is rotatably arranged at the lower end in the upper rod 1 through a bearing, and a second gear 12 meshed with the rack 10 is sleeved on the second rotating shaft 11, one end of the second rotating shaft 11 extends to the outside of the upper rod 1 and is connected with a rotating handle 15, a pull rope 19 is fixed on the rotating handle 15, when the upper rod 1 and the extension rod 2 extend for a large amount, the pull rope 19 can be pulled to enable the pull rope 19 to drive the rotating handle 15 to rotate, the pull rope 19 is far away from one end, fixed to the upper end pin of the rotating handle 15 and a torsion spring 18, of the rotating handle 15, the rotating handle 15 is manually twisted to enable the rotating handle 15 to drive the second rotating shaft 11 to rotate, namely, the second gear 12 to rotate, the rack 10 to move up and down, the first gear 9 to rotate and drive the special-shaped gear 10 to rotate, so that the movable knife 8 is driven to rotate;

the sliding device further comprises sliding grooves 13 and sliding blocks 14, wherein the sliding grooves 13 are formed in two sides of the inner wall of the upper rod 1, the sliding blocks 14 are fixed at two ends of the rack 10, and the rack 10 is arranged between the sliding grooves 13 in a sliding mode through the sliding blocks 14, so that the rack 10 can move up and down between the sliding grooves 13;

resetting the device: the restoring device is arranged at the lower end of an extension rod 2 and connected with a rotating handle 15, the restoring device comprises an installation column 16 and a fixed column 17 with T-shaped sections, the installation column 16 and the fixed column 17 are horizontally arranged on the surface of an upper rod 1 in parallel, a torsion spring 18 is sleeved at the lower end of the T-shaped section of the installation column 16, the torsion spring 18 can be selected according to the force to be trimmed when in selection, for example, a torsion spring with larger torsion is selected when trimming harder branches, and a torsion spring with two pins of ninety degrees is used when selecting the torsion spring 18, one pin is fixed with the rotating handle 15 in a standing state, one pin is fixed with the fixed column 17 and does not generate acting force, the upper pin of the torsion spring 18 is fixed with the rotating handle 15, the lower pin of the torsion spring 18 is fixedly connected with the lower end of the fixed column 17, the upper pin of the rotating handle 15 is folded towards, the torsion spring 18 stores energy, when the rotating handle 15 is loosened, the torsion spring 18 releases energy to reset the rotating handle 15, the manual reset work is reduced, the pruning efficiency is improved, the second rotating shaft 11, the mounting post 16 and the fixing post 17 are distributed in an isosceles right triangle shape, and the mounting columns 16 are distributed at the vertex of the right angle, the arc length between the second rotating shaft 11 and the fixing column 17 is not more than the arc length of the side of the special-shaped gear 7 containing the gear teeth, when properly used, the rotation angle of the rotary handle 15 is maintained within ninety degrees, i.e., between the normal state of the torsion spring 18 and the ninety degree compressed state, at which time the rotation angles of the second gear 12 and the first gear 9 are all consistent with the rotation angle of the rotary handle 15, therefore, the first gear 9 and the special-shaped gear 7 are always kept in a meshed state, and the movable knife 8 can be used for trimming by matching the rotating angle with the fixed blade 5;

wherein: the extension rod 2 is a hollow rectangular cylinder, the lower end of the extension rod is fixed with a bottom rod 3, the outer side of the bottom rod 3 is fixed with a handle 31, and the handle 31 is beneficial to a user to carry out handheld operation.

When in use: when a user holds the handle 31 by hand and needs to trim branches at a higher position, the bolt 43 is taken down, and the extension rod 2 is pulled downwards; the second screw hole 42 near the upper end of the extension rod 2 is aligned to the first screw hole 41 near the lower end of the upper rod 1 and is fastened by a bolt 43, the arc-shaped extension knife 51 is used for hooking branches to be trimmed, the pull rope 19 is pulled downwards by hand to enable the rotating handle 15 to rotate, the rotating handle 15 drives the second rotating shaft 11 to rotate, namely, the second gear 12 is driven to rotate, the rack 10 is made to move up and down, the first gear 9 is made to rotate, the first gear 9 rotates to drive the special-shaped gear 10 to rotate, the movable knife 8 is driven to rotate for a certain angle, trimming is conducted by matching with the fixed blade 5, the upper end pin of the rotating handle 15 is folded towards the torsion spring 18 when the rotating handle 15 rotates, the torsion spring 18 stores energy, and when the rotating handle 15 is loosened, the torsion spring 18 releases energy to.

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 (9)

1. The utility model provides a high altitude pruning scissors which characterized in that: comprises an upper rod (1), a driving device and a resetting device;

upper rod (1): the telescopic rod is a rectangular cylinder with a through groove at the right end, the bottom of the rectangular cylinder is inserted into the extension rod (2), and the upper rod (1) and the extension rod (2) are fixed through a fixing device (4);

a fixed blade (5) is welded on one side of the upper end of the upper rod (1), a cylindrical notch communicated with the through groove is formed in the top end of the upper rod (1), a first rotating shaft (6) is rotatably mounted in the cylindrical notch through a bearing, a special-shaped gear (7) is sleeved outside the first rotating shaft (6), the upper end of the special-shaped gear (7) is a cylindrical surface, and the lower end of the special-shaped gear is a gear tooth; a movable knife (8) is fixed on the cylindrical surface of the special-shaped gear (7), and the movable knife (8) penetrates through the cylindrical notch and is matched with the fixed blade (5) for use;

a driving device: the driving device comprises a first gear (9) and a rotating handle (15), the first gear (9) is rotatably arranged at the upper end inside the upper rod (1) through a rotating shaft, and the first gear (9) is connected with the special-shaped gear (7) to enable the special-shaped gear (7) to rotate;

resetting the device: which is arranged at the lower end of the extension rod (2) and is connected with a rotating handle (15);

wherein: the extension rod (2) is a hollow rectangular cylinder, and the lower end of the extension rod is fixed with a bottom rod (3).

2. The aerial pruning shears according to claim 1, wherein: a handle (31) is fixed on the outer side of the bottom rod (3).

3. The aerial pruning shears according to claim 1, wherein: fixing device (4) include first screw (41), second screw (42) and bolt (43), first screw (41) are evenly seted up at the upper and lower both ends face of upper boom (1), second screw (42) are evenly seted up at the upper and lower both ends face of extension rod (2) to first screw (41) and second screw (42) correspond the setting, are equipped with bolt (43) in first screw (41) and second screw (42).

4. The aerial pruning shears according to claim 1, wherein: the tail end of the fixed blade (5) is provided with an arc-shaped extension knife (51).

5. The aerial pruning shears according to claim 1, wherein: drive arrangement still includes rack (10), second axis of rotation (11) and second gear (12), rack (10) are established in last pole (1) inside and with first gear (9) meshing, second axis of rotation (11) are established at the inside lower extreme of last pole (1) through the bearing rotation, have cup jointed second gear (12) with rack (10) meshing on second axis of rotation (11), and second axis of rotation (11) one end extends to the outside of last pole (1) and is connected with twist grip (15).

6. An aerial pruning shear as claimed in claim 5, wherein: the novel gear rack is characterized by further comprising sliding grooves (13) and sliding blocks (14), wherein the sliding grooves (13) are formed in two sides of the inner wall of the upper rod (1), the sliding blocks (14) are fixed at two ends of the gear rack (10), and the gear rack (10) is arranged between the sliding grooves (13) in a sliding mode through the sliding blocks (14).

7. An aerial pruning shear as claimed in claim 5, wherein: the reset device comprises an installation column (16) and a fixed column (17) with T-shaped cross sections, wherein the installation column (16) and the fixed column (17) are horizontally arranged on the surface of the upper rod (1) in parallel, a torsion spring (18) is sleeved at the lower end of the T-shaped cross section of the installation column (16), the upper end pin of the torsion spring (18) is fixed with the rotating handle (15), and the lower end pin of the torsion spring (18) is fixedly connected with the lower end of the fixed column (17).

8. An aerial pruning shear as claimed in claim 7, wherein: a pull rope (19) is fixed on the rotating handle (15), and the pull rope (19) is far away from one end of the rotating handle (15) fixed with an upper end pin of the torsion spring (18).

9. An aerial pruning shear as claimed in claim 7, wherein: second axis of rotation (11), erection column (16) and fixed column (17) are isosceles right triangle and distribute, and erection column (16) distribute at right angle position summit, and arc length between second axis of rotation (11) and fixed column (17) is not more than the arc length that special-shaped gear (7) contains teeth of a cogwheel one side.

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