CN217509463U - High branch scissors - Google Patents

Abstract

The application relates to a pair of high branch scissors, which comprises a holding rod for holding by hands, wherein the holding rod is provided with an inner cavity; the scissors comprise a fixed knife and a rotating knife which are arranged at the top end of the holding rod, the rotating knife is hinged on the fixed knife and is provided with an opening station and a closing station, a pruning groove for inserting branches is formed between the rotating knife and the fixed knife when the rotating knife is positioned at the opening station, and the pruning groove is closed when the rotating knife is positioned at the closing station so as to cut the branches; drive assembly, drive assembly includes the driving piece, the screw rod, the lifter, guide post and wire rope, the screw rod sets up in interior intracavity, the driving piece sets up in the tip that scissors one end was kept away from to the screw rod, the driving piece orders about the screw rod and rotates along the screw rod axle center, lifter threaded connection keeps away from the one end of driving piece in the screw rod, the guide post sets up in holding the pole in the inner chamber, the guide post sets up along inner chamber length direction, the lifter lateral wall has been seted up and has been supplied the guide post to insert the guide way. This application has the effect of conveniently pruning thicker branch.

Description

High branch scissors

Technical Field

The utility model belongs to the technical field of garden instrument and specifically relates to a averruncator is related to.

Background

The pruning of the tree corolla is an important work for maintaining gardens. The pruning can promote the growth of branches, reduce branches and leaves of canopy, improve ventilation and light transmission and reduce the occurrence of plant diseases and insect pests. The trimming work is generally done by garden technicians using pruning shears, and for general hedges, short shrubs or small trees, it can be done by using common garden shears which mainly consist of two blades and a shear shaft. If the high branches of trees are to be trimmed, the branches to be trimmed are usually cut off by means of a ladder reuse tool, the trimming is inconvenient, the working efficiency is low, and the trees are unsafe to climb the ladder. Still utilize fixed a sword on the stock, cut off the branch through the sword, it is very hard to use, if cut thick branch and must saw the branch that wants to remove with the saw, need different apparatus to accomplish, bring certain inconvenience again for garden worker like this, complex operation, work efficiency is also very low.

There is a averruncator among the correlation technique, it includes the telescopic link, the telescopic link top is provided with the scissors that is formed by fixed sword and rotation sword transposition, the telescopic link top still is provided with the cutter body, the cutter body left side sets up the cutting edge, right side processing has the sawtooth, the top sets up the spiller, the downside sets up the bush-hook, the rotation sword of scissors passes through the stay cord and drives rotatoryly, thereby make the fixed sword and rotate the distance between the sword and change, thereby reach the function that the branch was pruned to the scissors, the length of telescopic link can change, thereby can realize pruning the branch of eminence.

To above-mentioned correlation technique, thereby the inventor thinks to cut the branch through the manual pulling stay cord drive rotation sword rotation, probably is difficult to cut when meetting great branch, and is relatively inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to facilitate pruning of thicker branches, the present application provides a high branch shears.

The application provides a high branch scissors adopts following technical scheme:

a pair of high branch scissors comprises a holding rod for holding by hands, wherein the holding rod is provided with an inner cavity; the scissors comprise a fixed knife and a rotating knife which are arranged at the top end of the holding rod, the rotating knife is hinged on the fixed knife and is provided with an opening station and a closing station, a pruning groove for inserting branches is formed between the rotating knife and the fixed knife when the rotating knife is positioned at the opening station, and the pruning groove is closed when the rotating knife is positioned at the closing station so as to cut the branches; drive assembly, drive assembly includes driving piece, screw rod, lifter, guide post and wire rope, the screw rod set up in the inner chamber, the driving piece set up in the screw rod is kept away from the tip of scissors one end, the driving piece orders about the screw rod rotates along the screw rod axle center, lifter threaded connection in the screw rod is kept away from the one end of driving piece, the guide post set up in hold the pole in the inner chamber, the guide post is followed inner chamber length direction sets up, the confession has been seted up to the lifter lateral wall the guide way is inserted to the guide post, wire rope one end with the lifter is connected, the wire rope other end in the rotating knife is connected.

Through adopting above-mentioned technical scheme, through setting up drive assembly, driving piece driving screw is rotatory, because guide post restriction lifter can only follow inner chamber length direction and remove, and lifter threaded connection is on the screw rod, screw drive lifter removes to the direction of keeping away from the scissors, the lifter orders about wire rope and removes to the one end of keeping away from the scissors, the sword is rotated in the wire rope pulling, it is closed to prune the groove to rotate the sword rotation, thereby cut the branch, do not need the manual work to stimulate wire rope, driving piece drive pulling force is bigger, can cut great branch, conveniently prune thicker branch.

Optionally, the sensor further comprises a sensing assembly, the sensing assembly comprises a first hall sensor, a controller and a magnet, the magnet is arranged on the lifting rod, the first hall sensor is arranged in the inner cavity, the controller is arranged on the driver and used for receiving transmission signals of the first hall sensor, and the controller receives the transmission signals of the first hall sensor and then controls the output end of the driving piece to rotate reversely.

Through adopting above-mentioned technical scheme, through setting up sensing assembly, when magnet on the lifter rotates to first hall sensor along with the removal of lifter on, first hall sensor sends out the signal to the controller after sensing magnet, and the controller orders about the reversal of driving piece output after receiving the signal to make the lifter remove to the scissors direction, make the rotation sword rotate and open, made things convenient for the use of averruncator.

Optionally, the sensing assembly further includes a second hall sensor, the second hall sensor is disposed in the inner cavity, the second hall sensor is located at one end, close to the scissors, of the first hall sensor, and the controller receives a signal transmitted by the second hall sensor and controls the output end of the driving member to stop rotating.

Through adopting above-mentioned technical scheme, through setting up second hall sensor, when magnet on the lifter removed to second hall sensor along with the removal of lifter on, second hall sensor sent the controller signals, and the controller received and orders about driving piece stall after the signal to make the rotating knife stop the function, do not need manual the stopping, made things convenient for the use of averruncator.

Optionally, still including being used for adjusting the adjusting part who rotates sword turned angle, adjusting part includes shifting board and adjust knob, hold the pole in cavity side wall has seted up the groove of sliding, the groove of sliding is followed cavity length direction sets up, the shifting board slide set up in the inslot that slides, first hall sensor with second hall sensor all set up in on the shifting board, adjust knob set up in the shifting board with between the cavity side wall, adjust knob is close to the one end of shifting board is provided with the plane screw thread, the shifting board is close to adjust knob's one end be provided with plane screw thread threaded connection's screw thread section.

Through adopting the above technical scheme, through setting up adjusting part, rotatable adjust knob, because the last plane screw thread that is provided with of adjust knob, be provided with the screw thread section with plane screw thread threaded connection on the shifting slide, the shifting slide moves along inner chamber length direction along with adjust knob's rotation, first hall sensor and second hall sensor move along with the removal of shifting slide, the rotatory angle of position adjustable rotating knife through adjusting first hall sensor, if the branch is tiny, can adjust the turning angle of rotating knife the small point, the turning angle of rotating knife is less also can break the branch, and can reduce the process and the return stroke distance of rotating knife, increase pruning efficiency, if the branch is thick, can adjust the large point with the turning angle of rotating knife, the process distance of rotating knife has been increased, conveniently break great branch.

Optionally, the holding rod is provided with a fixing strip on the inner cavity side wall, the adjusting knob is far away from one end of the sliding plate, a plurality of fixing strip inserting fixing grooves are formed in the end, far away from the sliding plate, of the adjusting knob, and the fixing grooves are formed in the circumferential direction of the adjusting knob at uniform intervals.

Through adopting above-mentioned technical scheme, because the averruncator can vibrate when using, adjust knob probably receives the vibration and rotates, makes first hall sensor and second hall sensor change. This scheme is through setting up the fixed strip, and keeps away from the one end of sliding plate at adjust knob and has seted up a plurality of confession fixed strip male fixed slots, carries on spacingly through fixed slot and fixed strip cooperation to adjust knob, reduces adjust knob and takes place pivoted risk to the messenger reduces the risk that first hall sensor and second hall sensor change, and then makes the use of averruncator more stable.

Optionally, one end of the adjusting knob, which is far away from the sliding plate, is provided with a transverse groove, the holding rod is provided with a through hole, which is opposite to the transverse groove, on the side wall of the inner cavity, and the through hole penetrates through the outer side wall of the holding rod.

Through adopting above-mentioned technical scheme, through setting up the cross slot, and seted up the through-hole at the holding rod inner chamber lateral wall, can aim at the through-hole with a word screwdriver and insert to the cross slot, rotate a word screwdriver, drive adjust knob rotatory, made things convenient for the regulation of rotating the sword stroke.

Optionally, a protective groove is formed in one end, away from the magnet, of the sliding plate, a fixed plate is arranged in the protective groove, and the first hall sensor and the second hall sensor are both arranged at one end, close to the magnet, of the fixed plate.

Through adopting above-mentioned technical scheme, because the elevator pipe probably mistakenly touches first hall sensor and second hall sensor when going up and down, lead to hall sensor to damage, this scheme is through setting up the fixed plate, and the protection groove is seted up to the one end of keeping away from magnet at the slide plate, the fixed plate inserts the protection inslot, the slide plate is protected first hall sensor and second hall sensor, the risk that first hall sensor and second hall sensor were touched by the elevator pipe mistake has been reduced, thereby make the use of averruncator more stable.

Optionally, the sliding plate is provided with a yielding groove at the bottom of the protection groove, and the first hall sensor and the second hall sensor are inserted into the yielding groove.

By adopting the technical scheme, the first Hall sensor and the second Hall sensor can not sense the magnetic force of the magnet because the plate wall of the sliding plate is thick. This scheme is through setting up the groove of stepping down, has reduced the thickness of sliding plate siding wall, has reduced the risk that first hall sensor and second hall sensor probably can not feel magnet magnetic force to make the use of averruncator more stable.

Optionally, a cavity is formed in one end, close to the screw rod, of the lifting rod, a threaded sleeve is arranged in the cavity, and the screw rod is in threaded connection with the threaded sleeve.

Through adopting above-mentioned technical scheme, through setting up the swivel nut, can directly change if the swivel nut uses the thread damage for a long time, reduced the probability that the lifter need be changed to the cost has been saved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the high branch scissors, the driving assembly is arranged, a steel wire rope does not need to be pulled manually, the driving piece drives the pull force to be larger, larger branches can be cut, and thicker branches can be trimmed conveniently;

2. the high branch scissors are convenient to use by arranging the sensing assembly;

3. a high branch scissors has improved high branch scissors's pruning efficiency and conveniently prunes thicker branch through setting up adjusting part.

Drawings

FIG. 1 is a schematic view of a high branch shear;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic diagram of an exploded structure of a high branch shear;

FIG. 4 is a schematic view of an explosive structure of the conditioning assembly;

FIG. 5 is an exploded view of the mounting half shell and adjustment knob;

fig. 6 is a schematic structural view of the first half-rod.

Description of reference numerals:

1. a hand-held wand; 11. an inner cavity; 111. a guide post; 112. a sliding groove; 12. a handle; 13. a stationary case; 131. a first hooking pole; 14. mounting a shell; 141. mounting the half shell; 1411. a mounting cavity; 1412. a groove is embedded; 14121. a fixing strip; 14122. a through hole; 2. scissors; 21. fixing a knife; 22. rotating the knife; 221. a second hooking pole; 222. a pulling part; 23. trimming the groove; 3. a tension spring; 4. a drive assembly; 41. a drive member; 42. a screw; 43. a lifting rod; 431. a first half-bar; 432. a second half bar; 4321. a guide groove; 433. a cavity; 4331. mounting grooves; 4332. a threaded sleeve; 4333. positioning a groove; 4334. connecting holes; 45. a wire rope; 46. a chain; 5. a sensing component; 51. a first Hall sensor; 52. a second Hall sensor; 53. a magnet; 54. a controller; 6. an adjustment assembly; 61. a slide plate; 611. a protective groove; 6111. buckling; 612. a yielding groove; 613. a threaded segment; 62. adjusting a knob; 621. a planar thread; 622. a connecting strip; 6221. fixing grooves; 623. a transverse groove.

Detailed description of the preferred embodimentsthe present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses averruncator.

Referring to fig. 1, a pair of high branch shears includes a hand-held lever 1 and shears 2.

Referring to fig. 2 and 3, the hand-held rod 1 has a hollow tubular shape and has an inner cavity 11. A handle 12 for being held by a hand is fixed at one end of the handheld rod 1 through a bolt. The end of the hand-held rod 1 far away from the handle 12 is fixed with a fixed shell 13 through bolts.

Referring to fig. 3, the handheld pole 1 includes two sections, sets up the installation shell 14 between the handheld pole 1 of both ends, and the installation shell 14 includes two installation half shells 141 that set up relatively, and two installation half shells 141 pass through bolt fastening, form installation cavity 1411 between two installation shells 14, and two handheld poles 1 insert respectively installation shell 14 both ends and all pass through bolt fastening in installation shell 14 both ends.

Referring to fig. 2, the scissors 2 are arranged at one end of the fixed shell 13 far away from the handheld rod 1, the scissors 2 comprise a fixed knife 21 and a rotating knife 22, the fixed knife 21 is fixed on the fixed shell 13 through a bolt, the rotating knife 22 is hinged with the fixed knife 21 through a rotating shaft, and the rotating knife 22 is provided with an opening station and a closing station. When the rotary knife 22 is at the opening station, a pruning groove 23 for inserting branches is arranged between the rotary knife 22 and the fixed knife 21. When the rotary knife 22 is in the closing station, the rotary knife 22 rotates to abut against the side wall of the fixed knife 21 and cover the pruning grooves 23, so that the branches are pruned. The lifting part 222 is integrally arranged at one end of the rotating knife 22 close to the fixed knife 21, the lifting part 222 extends towards the fixed knife 21, and the rotating knife 22 can be driven to move towards the rotating knife 22 by pulling the lifting part 222 towards the direction far away from the trimming groove 23, so that branches can be trimmed.

A first hanging column 131 is integrally arranged on the side wall of the fixed shell 13, a tension spring 3 is hung on the first hanging column 131, a second hanging column 221 is integrally arranged on the side wall of the rotating knife 22 close to the first hanging column 131, the other end of the tension spring 3 is hung on the second hanging column 221, and the tension spring 3 pulls the rotating knife 22 to the end far away from the fixed knife 21, so that the rotating knife 22 and the fixed knife 21 are always in an open state.

Referring to fig. 2 and 3, a drive assembly 4 is disposed within the interior chamber 11. The driving assembly 4 includes a driving member 41, a screw 42, a lifting rod 43, a guiding column 111 and a cable 45, the driving member 41 is fixed in the mounting cavity 1411 by bolts, in this embodiment, the driving member 41 is preferably configured as a motor, the screw 42 is disposed at one end of the driving member 41 close to the scissors 2, and the screw 42 is coupled to the rotating shaft of the driving member 41 by a coupler. The lifting rod 43 comprises a first half rod 431 and a second half rod 432 which are oppositely arranged, the first half rod 431 and the second half rod 432 are fixed through bolts, a cavity 433 is formed in one end of the first half rod 431 and one end of the second half rod 432, a mounting groove 4331 is formed in the inner wall of the cavity 433 of the first half rod 431 and the second half rod 432, a threaded sleeve 4332 is mounted in the mounting groove 4331, the lifting rod 43 is in threaded connection with the screw rod 42 through the threaded sleeve 4332, and the lifting cylinder and the inner cavity 11 are coaxially arranged. The guide post 111 is integrally arranged on the lifting rod 43 on the side wall of the inner cavity 11, the guide post 111 is arranged along the length direction of the inner cavity 11, the outer side wall of the first half rod 431 is provided with a guide groove 4321 for the guide post 111 to insert, and the guide post 111 limits the lifting rod 43 to only slide along the length direction of the inner cavity 11. One end of the first wire rope 45 is fixed on the lifting rod 43 through a bolt, the other end of the first wire rope 45 is provided with a chain 46, and the chain 46 is rotatably connected to the lifting part 222 through a rotating shaft.

The driving part 41 rotates to drive the screw rod 42 to rotate, the lifting rod 43 is in threaded connection with the screw rod 42 through the threaded sleeve 4332, the lifting rod 43 can only slide along the length direction of the inner cavity 11 due to the fact that the fixing column is arranged on the side wall of the inner cavity 11, when the lifting rod 43 moves towards one end far away from the scissors 2, the steel wire rope 45 pulls the rotating knife 22, the rotating knife 22 rotates to close the trimming groove 23, and therefore tree branches are trimmed.

Referring to fig. 3 and 4, the secateurs further comprise a sensing assembly 5, the sensing assembly 5 comprising a first hall sensor 51, a second hall sensor 52, a magnet 53 and a controller 54. The first half rod 431 and the second half rod 432 are provided with a positioning groove 4333 at one end close to each other, the magnet 53 is inserted into the positioning groove 4333, the first half rod 431 and the second half rod 432 are provided with a connecting hole 4334 at the groove wall of the positioning groove 4333, the connecting hole 4334 penetrates through the outer side walls of the first half rod 431 and the second half rod 432, and the magnetic force of the magnetic strip can be conveniently transmitted out by arranging the connecting hole 4334.

The controller 54 is fixed to the driver 41 by bolts.

The fixed plate sets up in inner chamber 11, and first hall sensor 51 and second hall sensor 52 weld in the fixed plate and are close to screw rod 42 one end, and first hall sensor 51 and second hall sensor 52 set up along fixed plate length direction interval, and first hall sensor 51 is located the one end that the scissors 2 was kept away from to the second sensor.

The driving part 41 drives the lifting rod 43 to move towards one end far away from the scissors 2, when the magnet 53 moves onto the first hall sensor 51 along with the movement of the lifting rod 43, the rotating knife 22 is in the second station and finishes pruning branches, the first hall sensor 51 senses the magnet 53 and sends a signal to the controller 54, the controller 54 receives the signal to drive the driving part 41 to rotate reversely, so that the lifting rod 43 moves towards one end near the scissors 2, when the magnet 53 moves onto the second hall sensor 52 along with the movement of the lifting rod 43, the rotating knife 22 is in the first station, a pruning groove 23 is formed between the rotating knife 22 and the fixed knife 21, the first hall sensor 51 senses the magnet 53 and sends a signal to the controller 54, the controller 54 receives the signal to drive the driving part 41 to stop rotating, and the rotating knife 22 keeps an opening state.

Referring to fig. 4 and 5, the high branch shears further comprise an adjusting assembly 6, and the adjusting assembly 6 comprises a sliding plate 61 and an adjusting knob 62.

The hand-held rod 1 is provided with a sliding groove 112 on the side wall of the inner cavity 11, and a sliding plate 61 is arranged in the sliding groove 112 in a sliding manner. The sliding plate 61 is provided with a protection groove 611 at one end away from the screw rod 42, the fixing plate is embedded in the protection groove 611, the sliding plate 61 is integrally provided with a buckle 6111 on two side walls of the inner cavity 11, and the fixing plate is fixed in the protection groove 611 through the buckle 6111. The sliding plate 61 is provided with two yielding slots 612 at the bottom of the protection slot 611 for the first hall sensor 51 and the second hall sensor 52 to be inserted into correspondingly. By providing the receding groove 612, the thickness of the plate wall of the sliding plate 61 can be reduced, so that the first hall sensor 51 and the second hall sensor 52 can feel the magnetic force of the magnetic block more easily.

Referring to fig. 5 and 6, the adjusting knob 62 is located between the slide plate 61 and the side wall of the mounting chamber 1411. The two mounting half shells 141 are provided with an insertion groove 1412 on the sidewall of the mounting cavity 1411, and the adjusting knob 62 is inserted in the insertion groove 1412. One end of the adjusting knob 62, which is far away from the bottom of the embedded groove 1412, is integrally provided with a planar thread 621, and one end of the sliding plate 61, which is close to the adjusting knob 62, is integrally provided with a threaded section 613 in threaded connection with the planar thread 621. The mounting half shell 141 is integrally provided with a fixing strip 14121 at the bottom of the embedded groove 1412, one end of the adjusting knob 62 close to the bottom of the embedded groove 1412 is provided with a plurality of connecting strips 622, the plurality of connecting strips 622 are uniformly arranged at intervals along the axial direction of the axis of the adjusting knob 62 in the embedded groove 1412, and a fixing groove 6221 for inserting the fixing strip 14121 is formed between the adjacent connecting strips 622. The adjusting knob 62 is provided with a transverse groove 623 at one end close to the bottom of the fixing groove 6221, the two mounting half shells 141 are provided with a through hole 14122 at the bottom of the insertion groove 1412, the through hole 14122 is opposite to the transverse groove 623, and the through hole 14122 penetrates through the outer side walls of the two mounting shells 14.

A straight screwdriver penetrates through the through hole 14122 and is inserted into the transverse groove 623, the straight screwdriver is rotated to drive the adjusting knob 62 to rotate, and the sliding plate 61 is moved along the length direction of the sliding groove 112 through the matching of the planar thread 621 and the thread section 613, so that the positions of the first hall sensor 51 and the second hall sensor 52 are adjusted. Through changing first hall sensor 51's position, the rotation angle of adjustable rotation sword 22, if the branch is more tiny, can adjust the rotation angle who rotates sword 22 the small point, the rotation angle who rotates sword 22 is less also can break the branch, and can reduce the process and the return stroke distance that rotate sword 22, increase pruning efficiency, if the branch is thicker, can adjust the large point with the rotation angle who rotates sword 22, increased the process distance that rotates sword 22, the convenience is broken great branch.

The implementation principle of a tree pruner of the embodiment of the application is as follows: when branches need to be trimmed, the driving part 41 is driven, the driving part 41 drives the screw rod 42 to rotate, the screw rod 42 drives the lifting rod 43 to move towards one end far away from the scissors 2, the steel wire rope 45 drives the chain 46 to move the rotating knife 22 towards one end of the fixed knife 21, so that the branches in the trimming groove 23 are trimmed, at the moment, the first hall sensor 51 senses the magnet 53, the first hall sensor 51 sends a signal to the controller 54, the control receives the signal to drive the motor to rotate reversely, the steel wire rope 45 retracts, the tension spring 3 moves the rotating knife 22 towards one end far away from the fixed knife 21, and the rotating knife 22 and the fixed knife 21 are in an open state.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A high branch shear is characterized in that: comprises a holding rod for holding by hand, wherein the holding rod is provided with an inner cavity (11);

the scissors (2) comprise a fixed knife (21) and a rotating knife (22) which are arranged at the top end of the holding rod, the rotating knife (22) is hinged on the fixed knife (21), the rotating knife (22) is provided with an opening station and a closing station, a pruning groove (23) for inserting branches is formed between the rotating knife (22) and the fixed knife (21) when the rotating knife (22) is located at the opening station, and the pruning groove (23) is closed when the rotating knife (22) is located at the closing station so as to cut the branches;

the driving assembly (4) comprises a driving part (41), a screw rod (42), a lifting rod (43), a guide column (111) and a steel wire rope (45), the screw rod (42) is arranged in the inner cavity (11), the driving part (41) is arranged at the end part of one end, far away from the scissors (2), of the screw rod (42), the driving part (41) drives the screw rod (42) to rotate along the axis of the screw rod (42), the lifting rod (43) is in threaded connection with one end, far away from the driving part (41), of the screw rod (42), the guide column (111) is arranged in the inner cavity (11), the guide column (111) is arranged along the length direction of the inner cavity (11), the side wall of the lifting rod (43) is provided with a guide groove (4321) for the guide column (111) to be inserted into, one end of the steel wire rope (45) is connected with the lifting rod (43), the other end of the steel wire rope (45) is connected with the rotating knife (22).

2. A secateur according to claim 1, wherein: still include sensing subassembly (5), sensing subassembly (5) include first hall sensor (51), controller (54) and magnet (53), magnet (53) set up in on lifter (43), first hall sensor (51) set up in inner chamber (11), controller (54) set up in on driving piece (41) and be used for receiving the transmission signal of first hall sensor (51), controller (54) receive control behind first hall sensor (51) transmission signal driving piece (41) output reverses.

3. A secateur according to claim 2, wherein: the sensing assembly (5) further comprises a second Hall sensor (52), the second Hall sensor (52) is arranged in the inner cavity (11), the second Hall sensor (52) is located at one end, close to the scissors (2), of the first Hall sensor (51), and the controller (54) receives signals transmitted by the second Hall sensor (52) and then controls the output end of the driving piece (41) to stop rotating.

4. A secateur according to claim 3, wherein: also comprises an adjusting component (6) used for adjusting the rotating angle of the rotating knife (22), the adjusting component (6) comprises a sliding plate (61) and an adjusting knob (62), the side wall of the inner cavity (11) of the holding rod is provided with a sliding groove (112), the sliding groove (112) is arranged along the length direction of the inner cavity (11), the sliding plate (61) is arranged in the sliding groove (112) in a sliding manner, the first Hall sensor (51) and the second Hall sensor (52) are both arranged on the sliding plate (61), the adjusting knob (62) is arranged between the sliding plate (61) and the side wall of the inner cavity (11), one end of the adjusting knob (62) close to the sliding plate (61) is provided with a plane thread (621), one end of the sliding plate (61) close to the adjusting knob (62) is provided with a threaded section (613) in threaded connection with the plane thread (621).

5. A secateur according to claim 4, wherein: the holding rod in inner chamber (11) lateral wall is provided with fixed strip (14121), adjust knob (62) keep away from the one end of slide block (61) is seted up a plurality of confessions fixed strip (14121) male fixed slot (6221), and is a plurality of fixed slot (6221) are followed adjust knob (62) circumference is even interval and is set up.

6. A secateur according to claim 5, wherein: one end, far away from the sliding plate (61), of the adjusting knob (62) is provided with a transverse groove (623), the side wall of the inner cavity (11) of the holding rod is provided with a through hole (14122) opposite to the transverse groove (623), and the through hole (14122) penetrates through the outer side wall of the holding rod.

7. A pole pruner as defined in claim 5, wherein: a protection groove (611) is formed in one end, far away from the magnet (53), of the sliding plate (61), a fixing plate is arranged in the protection groove (611), and the first Hall sensor (51) and the second Hall sensor (52) are arranged at one end, close to the magnet (53), of the fixing plate.

8. A pole pruner as defined in claim 7, wherein: the sliding plate (61) is provided with a yielding groove (612) at the bottom of the protection groove (611) for allowing the first Hall sensor (51) and the second Hall sensor (52) to be inserted.

9. A secateur according to claim 1, wherein: a cavity (433) is formed in one end, close to the screw rod (42), of the lifting rod (43), a threaded sleeve (4332) is arranged in the cavity (433), and the screw rod (42) is in threaded connection with the threaded sleeve (4332).

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