CN211982764U - High branch scissors - Google Patents

Abstract

The utility model provides a tree pruner. The high branch scissors comprise n-level rectangular tubes, wherein n is a natural number greater than or equal to 2; in every two adjacent stages of the rectangular tubes, the rectangular tube at the upper stage can stretch and be sleeved in the inner cavity of the rectangular tube at the lower stage; in the n-stage moment tubes, the first-stage moment tube is a starting section moment tube, and the nth-stage moment tube is a terminating section moment tube; a cutter frame structure is detachably connected to the tail end of the nth-stage rectangular pipe; the tool rest structure is arranged with the nth-stage rectangular tube through an angle adjuster; a sliding pull ring is detachably sleeved on the first-stage rectangular pipe, and a pulley block and a transposition pulley block are arranged on the tool rest structure; the pulley block, the transposition pulley block and the sliding pull ring are connected through a flexible shaft. Compared with the prior art, the utility model provides a averruncator simple structure, job stabilization, safe laborsaving.

Description

High branch scissors

Technical Field

The utility model relates to a tree pruner which can be used for pruning the side and the top of a tree.

Background

Along with the improvement of life quality, the afforestation of each family courtyard plant increases, and the government has strengthened the human environment to park, each item gardens road ization construction investment on the lane has increased, makes flowers and plants trees maintenance work volume increase. The existing high branch scissors only generally have the cutting and shearing work in the side elevation direction, the cutting and shearing work on the top end of a branch and a trunk cannot be finished, and the auxiliary cutting can be carried out only by participation of other tools. And the working caliber is small, the working stroke is large, and the time, the labor and the efficiency are low. Meanwhile, the branches and the trunks are increased and are mutually interwoven with various lines to be easily conductive, so that danger is easily caused during working! And the performance is single, the application range is limited, and comprehensive application can not be carried out.

As disclosed in prior patent publication No. CN1086335202A, a hedge trimmer with retractable reverse fishing rope is disclosed. It can only cut branches with small diameter and does not have the advantage of cutting the top end when working with vertical face cutting scissors.

A novel high branch shear is disclosed as the prior patent publication No. CN204047281U, and a garden high branch shear is disclosed as the patent publication No. CN 101036439A; patent publication No. CN207574000U discloses a scalable cutting saw integrative horticulture, and above-mentioned technical scheme all can not realize the angularly adjustable of knife rest structure, and application scope is little.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a removable knife rest structure reaches right the averruncator that knife rest structure realized angle modulation.

The technical scheme of the utility model is that: a high branch shear comprises n-level rectangular tubes, wherein n is a natural number more than or equal to 2; in every two adjacent stages of the rectangular tubes, the rectangular tube at the upper stage is telescopically sleeved in the inner cavity of the rectangular tube at the lower stage; in the n-stage moment tubes, the first-stage moment tube is a starting section moment tube, and the nth-stage moment tube is a terminating section moment tube; a cutter frame structure is detachably connected to the tail end of the nth-stage rectangular pipe; the tool rest structure can adjust the installation angle with the nth-stage rectangular tube through an angle adjuster; a sliding pull ring is detachably sleeved on the first-stage rectangular pipe, a pulley block for driving the tool rest structure to move is arranged on the tool rest structure, and a transposition pulley block for adapting to the installation angle adjustment of the tool rest structure is arranged on the tool rest structure; the pulley block, the transposition pulley block and the sliding pull ring are connected through a flexible shaft.

In the scheme, the high branch scissors are multi-stage telescopic rectangular tubes, the working height of a tool rest structure arranged at the tail end in an actual environment can be adjusted, and the applicability is wide; the tool rest structure is detachably connected with the rectangular tube through the angle adjuster, and other tools with the same installation model can be sleeved for multiple comprehensive use, so that the comprehensive use efficiency of the tool rest structure is improved; the cutter rest structure can adjust the angle through the angle adjuster, can cut the side and the top at various angles, and has wide application range.

After the structure of the cutter frame is changed, the cutter frame can be detached together with the sliding pull ring, so that the self weight of the high branch shears is reduced, and the comprehensive operation of other projects (such as sawing, picking and the like) is facilitated.

Preferably, every two adjacent rectangular pipes are fixed through a buckle.

Preferably, the buckle comprises a movable clamping piece, a buckle bracket, a buckle pin and a torsion spring, the buckle bracket is used for fixing the movable clamping piece on the rectangular tube, and the torsion spring is arranged between the buckle bracket and the movable clamping piece; the movable clamping piece is provided with the buckling pin which is abutted against the side wall of the rectangular tube at the upper stage.

Preferably, the tool rest structure is inserted into the nth-order rectangular tube; a spline hole is formed in the insertion part of the tool rest structure; the angle adjuster comprises a pressure spring, an adjusting pin and an angle adjusting gear fixed on the adjusting pin, and the angle adjusting gear is matched with the splined hole; the nth-stage moment tube is positioned at one end of the spline hole and is used for accommodating the pressure spring, and a positioning lip is arranged at the other end of the nth-stage moment tube, which is positioned in the spline hole; the adjusting pin is close to the pressure spring side and extends into the n-th-stage moment tube, and the extending tail end of the adjusting pin is matched with the positioning lip.

The angle adjuster can realize the replacement of various types of the knife rest structure on one hand and can realize the angle adjustment of the knife rest structure on the other hand.

Preferably, the sliding pull ring comprises a support base sleeved outside the first-stage rectangular pipe and an annular flexible shaft sleeve hinged on the support base, and the flexible shaft penetrates through the annular flexible shaft sleeve.

Preferably, the bracket base is of a U-shaped structure with one end open and the other end closed, the annular soft shaft sleeve is hinged to the closed end of the bracket base, the open end of the bracket base is provided with an elastic clamp, and the elastic clamp is fixed through a bolt; and mounting wheels which are abutted against the first-stage rectangular tube are arranged on three side walls of the bracket base.

In order to avoid the occurrence of safety accidents such as electric leakage, the high branch shears further comprise an electric leakage warning device, wherein the electric leakage warning device is fixedly arranged on the nth-level rectangular tube and close to the knife rest structure.

Preferably, a dial scale for displaying an adjusting angle is arranged between the tool rest structure and the nth-order rectangular pipe connecting part; and scale marks for displaying the working distance of the tool rest structure are arranged on the n-stage rectangular tubes.

The square tube is provided with scale marks, so that the working distance is more accurate, and the operation is convenient and accurate.

Preferably, the tool rest structure is a double-tool rest structure, and the double-tool rest structure comprises a pull arm, a fixed seat plate, an upstream tool and a downstream tool which are slidably arranged on the fixed seat plate; a transmission gear for enabling the up-going knife and the down-going knife to move relatively in the sliding direction is arranged between the up-going knife and the down-going knife, the transmission gear is fixed at one end of the pull arm, the other end of the pull arm is connected with the pulley block, and a return spring for resetting the up-going knife and the down-going knife is arranged between the pull arm and the down-going knife.

In order to solve the problem of limited working range, the double-cutter-holder structure driven by the transmission gear is adopted through repeated tests and improvement, so that the working range is well expanded. And a structure consisting of two blades and a working gear is adopted, so that the working stroke is short, and the working efficiency is high.

Preferably, the knife rest structure is any one of a hacksaw, a melon and fruit picker, a fallen leaf rake and an electric power transmission fork.

If must carry out the cutting of great thick lateral branch and cut the during operation, then will cut the work of cutting on the hacksaw suit of same specification, because the angle adjuster of quarter bend possesses multi-purpose compatibility in the use for the compressible spline gear of activity, can make things convenient for other accessory tools of suit with the type spline board to carry out necessary relevant work such as hacksaw, melon and fruit picker, fallen leaves harrow, electric power transmission fork etc..

Compared with the prior art, the beneficial effects of the utility model are that:

firstly, an angle adjuster with an adjustable angle is adopted, and side top cutting at various angles can be carried out;

in addition, the adopted angle adjuster with the adjustable angle is convenient for combining other tools with the same specification;

thirdly, the head of the rectangular tube is provided with a non-contact leakage warning lamp, so that the safety and reliability are improved;

fourthly, a distance scale is arranged on the rectangular tube, so that the accuracy of the working distance is improved;

and fifthly, the flexible shaft made of the steel wire rope is adopted, energy consumption is reduced, the movable U-shaped sliding pull ring slides up and down along the first-stage rectangular pipe to shrink, the tool rest structure at the tail end of the high branch shears can also be operated by rotating the annular flexible shaft sleeve, the operation process is safer and labor-saving, and the application range is wider.

Drawings

Fig. 1 is a schematic structural view of a high branch shear provided by the present invention;

fig. 2 is a schematic view of the connection between the cutter holder structure and the third-stage rectangular pipe in the high branch shears provided by the present invention;

FIG. 3 is a schematic view of the angle adjustment of the high branch shears according to the present invention;

FIG. 4 is a left side schematic view of FIG. 2;

fig. 5 is a schematic view of an installation structure of the transposition wheel set, the lower pulley and the flexible shaft provided by the present invention;

fig. 6 is a schematic view of a connection structure of a first-stage rectangular pipe and a second-stage rectangular pipe in the high branch shears provided by the utility model;

FIG. 7 is a schematic view of the construction of the slider tab and the movable tension bar of FIG. 6;

fig. 8 is a schematic view of a connection structure of the annular flexible shaft sleeve and the flexible shaft in fig. 6.

In the attached drawing, 1-a first-stage moment tube, 2-a second-stage moment tube, 3-a third-stage moment tube, 31-a slotted hole, 32-an adjusting hole, 33-a positioning lip, 34-a marking pointer, 4-a double-cutter frame structure, 41-a pull arm, 42-a fixed seat plate, 43-an upward cutter, 431-a driving arm, 432-a cutter edge arm, 433-a guide groove, 44-a downward cutter, 45-a transmission gear, 46-a guide pulley, 47-a spline hole, 48-a dial, 49-a return spring, 5-an angle adjuster, 51-a pressure spring, 52-an adjusting pin, 53-an angle adjusting gear, 6-a buckle, 61-a movable clamp, 62-a buckle bracket, 63-a buckle pin, 64-a torsion spring, 7-a sliding pull ring, 71-a bracket base, 72-an annular flexible shaft sleeve, 73-a locking key, 74-an elastic clamp, 75-a mounting wheel, 76-a bearing, 77-a bolt, 8-a pulley block, 81-an upper pulley, 82-a lower pulley, 9-a transposition pulley block, 91-a horizontal straight pulley, 92-a rectangular guide rail groove, 10-a movable tension rod, 11-an electric leakage alarm, 12-a flexible shaft and 13-a scale mark.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1, the high branch shears provided in this embodiment includes an n-level rectangular pipe, a tool rest structure, an angle adjuster 5, a buckle 6, a sliding pull ring 7, a pulley block 8, a transposition pulley block 9, a movable pull rod 10, an electric leakage alarm 11, and a flexible shaft 12.

In the n-stage rectangular tube, n is a natural number greater than or equal to 2. In every two adjacent stages of the rectangular tubes, the rectangular tube at the upper stage is telescopically sleeved in the inner cavity of the rectangular tube at the lower stage. In the n-stage moment tubes, the first-stage moment tube is a starting section moment tube, and the nth-stage moment tube is a terminating section moment tube. The nth-stage rectangular tube is the rectangular tube which is the uppermost (namely the smallest tube diameter) after extending out. The first-stage rectangular pipe is a rectangular pipe sleeved on the outermost side (namely, the largest pipe diameter).

In the present embodiment, n = 3. The high branch shears comprise a first-stage rectangular pipe 1, a second-stage rectangular pipe 2 which is telescopically sleeved in the first-stage rectangular pipe 1, and a third-stage rectangular pipe 3 which is telescopically sleeved in the second-stage rectangular pipe 2. The tail end of the third-stage rectangular pipe 3 is detachably connected with a cutter frame structure through an angle adjuster 5. In this embodiment, the tool holder structure is a double tool holder structure.

As shown in fig. 2, the double-cutter holder structure 4 includes a pull arm 41, a fixed seat plate 42, an upper cutter 43, a lower cutter 44, a transmission gear 45 and a guide pulley 46. The pulley block 8 comprises an upper pulley 81 and a lower pulley 82. The fixed seat plate 42 is provided with a part inserted with the third-stage rectangular pipe 3, and the part is provided with a spline hole 47. The lower pulley 82 is disposed on the fixed seat plate 42 at a position near the lower end thereof.

The upper blade 43 moves upwards along the fixed seat plate 42, the lower blade 44 moves downwards along the fixed seat plate 42, and the upper blade 43 and the lower blade 44 move relatively to each other to realize shearing after overlapping.

The upper knife 43 includes a driving arm 431 and a blade arm 432, and the driving arm 431 and the blade arm 432 are bent structures. The driving arm 431 is provided with a guide groove 433, and the direction of the guide groove 433 is consistent with the moving direction of the upper knife 43. The guide pulley 46 is engaged with the guide groove 433, and the guide pulley 46 is fixed to the fixed seat plate 42.

The structure of the lower blades 44 is the same as that of the upper blades 43.

The transmission gear 45 is arranged on the fixed seat plate 42 and is positioned between the driving arm of the upper knife 43 and the driving arm of the lower knife 44. The driving arm of the upper knife 43 and the driving arm of the lower knife 44 are both provided with gear teeth meshed with the transmission gear 45.

One end of the pull arm 41 is fixed to the transmission gear 45, and the other end is connected to the upper pulley 81. A return spring 49 is arranged between the pull arm 41 and the descending knife 44. When a pulling force is applied to the pulling arm 41, which is driven downward as shown in fig. 2, the pulling arm 41 drives the transmission gear 45 to rotate clockwise. The rotation of the transmission gear 45 simultaneously drives the upper knife 43 engaged with the transmission gear to move upwards, and the lower knife 44 engaged with the transmission gear to move upwards and downwards. When the upper blade 43 and the lower blade 44 are overlapped and contacted to realize shearing work, the pulling force on the pull arm 41 is released, and the upper blade 43 and the lower blade 44 are opened and reset under the action of the resilience force of the return spring 49.

As shown in fig. 2, the electric leakage alarm 11 is fixedly disposed on the third rectangular pipe 3 and is disposed adjacent to the double-tool-holder structure 4. When the cutting operation is carried out, the branches have the conducting phenomenon because the electric leakage possibly exists around, and whether the electric leakage exists in the surrounding environment or not can be sensed through the electric leakage warning device 11. When the cutting operation is performed, if the warning light of the electric leakage warning device 11 is on or the buzzer gives an alarm, the possibility of electric leakage is prompted, and then effective protection measures (such as stopping the cutting operation or performing insulation treatment) should be taken immediately to prevent accidental electric shock accidents. And in order to ensure the safety of the high branch shears during use, the outer layer of the first-stage rectangular tube 1 is provided with an insulating material during the manufacture of the high branch shears.

As shown in fig. 2, the angle adjuster 5 includes a compression spring 51, an adjustment pin 52, and an angle adjustment gear 53. The angle adjusting gear 53 is fitted to the spline hole 47. The third-stage moment tube 3 is arranged on the slot hole 31 matched with the inserting position of the fixed seat plate 42. The third stage moment tube 3 is provided with an adjusting hole 32 in the inner wall of one end of the slot hole 31, and a positioning lip 33 in the inner wall of the other end of the slot hole 31. The adjustment pin 52 is fixedly connected to the angle adjustment gear 53. The adjustment pin 52 is inserted from the adjustment hole 32 side, and the angle adjustment gear 53 is fitted in the spline hole 47.

When the adjusting pin 52 is completely withdrawn into the adjusting hole 32 and does not contact the spline hole 47, the double-cutter-holder structure 4 can be withdrawn, and the cutter-holder structure can be replaced according to the actual use environment, such as any one of a hacksaw, a fruit picker, a leaf rake and an electric power transmission fork. The tool holders to be replaced are all structurally provided with splined holes which are meshed with the angle adjusting gear 53 of the angle adjuster 5.

The adjusting hole 32 accommodates the compression spring 51, and the compression spring 51 is sleeved on the adjusting pin 52 and is abutted between the inner wall of the fixed seat plate 42 and the angle adjusting gear 53. The end of the adjustment pin 52 engages the retention lip 33.

As shown in fig. 3, the angle adjuster 5 operates in such a manner that the angle adjusting gear 53 is disengaged from the splined hole 47 by pulling the adjusting pin 52 leftward. At this time, the double tool rest structure 4 can rotate along the third-stage rectangular pipe 3 to realize angle adjustment. In this case, the angle adjustment can be viewed by providing a dial 48 for displaying the adjustment angle between the tool holder structure and the connection point of the third rectangular tube 3 to determine the angle adjustment value. The dial 48 is marked on the outer circle of the spline hole 47 of the fixed seat plate 42. The third stage torque tube 3 is provided with a triangular mark pointer 34, and the mark pointer 34 points to the right upper side and is used for indicating the corresponding angle value on a dial 48 which rotates together with the fixed seat plate 42 (as shown in fig. 4).

After the angle adjustment is completed, the adjusting pin 52 is loosened, the angle adjusting gear 52 is meshed with the spline hole 47 under the action of the pressure spring 51, and at the moment, the adjusting pin 52 extends into the positioning lip 33 to realize the position fixing.

As shown in fig. 1 and 2, the flexible shaft 12 sequentially passes through the transposition pulley group 9, the lower pulley 82 of the pulley block 8 and the upper pulley 81 of the pulley block 8 from the sliding pull ring 7, and is fixed after the upper pulley 81 of the pulley block 8 revolves. The flexible shaft 12 is a steel wire rope, and power is transmitted to the transmission gear 45 through the flexible shaft 12.

As shown in fig. 2 and 5, the shifting wheel set 9 is disposed adjacent to the lower pulley 82 and includes two horizontally disposed horizontal straight pulleys 91. And a rectangular guide rail groove 92 is formed in the transverse straight pulley.

The flexible shaft 12 passes through the rectangular guide rail groove 92 and winds around the lower pulley 82. The section of the rectangular guide rail groove 92 is in a V shape, when the angle of the double-tool-rest structure 4 is adjusted, the transposition wheel set 9 horizontally slides, and the V-shaped rectangular guide rail groove 92 plays a role in guiding and limiting the working direction of the flexible shaft 12.

As shown in fig. 1, each stage of the rectangular tube is provided with a scale mark 13 for displaying the working distance of the tool rest structure. As shown in fig. 6, the latch 6 includes a movable card 61, a latch bracket 62, a latch pin 63, and a torsion spring 64. The buckle bracket 62 is used for fixing the movable clamping piece 61 on the rectangular tube, and the torsion spring 64 is arranged between the buckle bracket 62 and the movable clamping piece 61. The upper end of the movable clamping piece 61 is provided with the clamping pin 63 which is abutted to the side wall of the rectangular tube at the upper stage, the upper end of the movable clamping piece 61 can be opened by pressing the lower end of the movable clamping piece 61, at the moment, the clamping buckle 6 is not in contact with the rectangular tube, and the rectangular tube can be adjusted in a telescopic mode. If the position is fixed, and the distance is confirmed through the scale mark 13 on the rectangular tube, the pressing of the movable clamping piece 61 is released, and the buckling pin 63 is pushed to abut against the side wall of the rectangular tube under the action of the torsion spring 64, so that the position locking is realized.

As shown in fig. 6, 7 and 8, the sliding pull ring 7 comprises a bracket seat 71, an annular flexible shaft sleeve 72, a locking key 73, an elastic clamping buckle 74, a mounting wheel 75, a bearing 76 and a bolt 77.

The bracket base 71 is a U-shaped structure with one end open and the other end closed. The bracket base 71 is sleeved on the first-stage rectangular pipe 1, and three side surfaces of the bracket base 71 are provided with mounting wheels 75 in contact with the first-stage rectangular pipe 1.

The opening end of the bracket base 71 is provided with the elastic clamping buckles 74, the two elastic clamping buckles 74 horizontally penetrate through the bolt 77 and are connected through the nut, so that the bracket base 71 is connected on the first-stage rectangular pipe 1 in a closed mode, and an annular structure is formed. The bolt 77 is a T-shaped bolt, and can be detachably connected with the bracket base 71 together with a nut. When adjusting the high branch scissors length, need loosen the nut on the support seat 71, confirm good back according to multistage square tube telescopic position again, adjust the position of support seat 71 to realize that flexible axle 12 is the state of flare-outing before the work, through screwing up the nut, with the fixed position of support seat 71.

The annular flexible shaft sleeve 72 is hinged on the closed end of the bracket seat 71. The annular flexible shaft sleeve 72 is a disc-shaped structure, similar to a steering wheel. The middle part of the annular flexible shaft sleeve 72 is provided with a rotating shaft, and the rotating shaft is connected with the bracket base 71 through the bearing 76. The annular flexible shaft sleeve 72 is provided with a cavity for mounting the flexible shaft 12. The flexible shaft 12 is fixed in the cavity of the annular flexible shaft sleeve 72 through the locking key 73. The locking key 73 is an elastic sheet, one end of the locking key 73 is fixed with the side wall of the annular flexible shaft sleeve 72 through a screw, and the other end of the locking key 73 presses the flexible shaft 12 on the side wall of the annular flexible shaft sleeve 72 through self elasticity.

The annular flexible shaft sleeve 72 is rotated clockwise to drive the flexible shaft 12 to pull the pull arm 41 downwards, so that the shearing action of the double-cutter frame structure 4 is realized.

When a larger trunk is cut, the movable stressing rod 10 can be mounted on the annular flexible shaft sleeve 72, and a downward driving force is exerted on the movable stressing rod 10 to realize the rotation of the annular flexible shaft sleeve 72. The movable stress application rod 10 can assist in applying stress to meet the working requirement of the maximum shearing surface.

In addition, the bracket seat 71 can slide up and down to replace the rotation of the annular flexible shaft sleeve 72, so that the flexible shaft 12 can be pulled up and down.

When the sawing or picking or other comprehensive work is needed after the shearing work is finished, the double-cutter frame structure and the sliding pull ring can be integrally taken down and placed in the storage bag to shear the total weight of the rectangular tube, so that the comprehensive operation of other projects is conveniently carried out.

The utility model provides a high branch scissors simple structure, job stabilization can carry out the side, and the work of cutting at top, and work is light nimble laborsaving, and its supporting angle adjustment ware can suit the different instruments with the specification and carry out multinomial operation simultaneously, has improved work efficiency and comprehensive utilization. The non-contact electric leakage warning device additionally installed can effectively prompt and early warn to ensure the safety and reliability of shearing work, the scale marks on the rectangular tube can measure and control the working distance, the working accuracy is improved, the U-shaped buckle design structure capable of being movably sleeved and freely taken and placed can ensure the flexibility and the working stability and reliability, and meanwhile, the non-contact electric leakage warning device can be flexibly taken, placed and installed to carry out other comprehensive work, the weight of the rectangular tube is reduced, the labor intensity of an operator is reduced, and the non-contact electric leakage warning device is a good helper for garden maintenance, fruit and vegetable picking, fishing and other work.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A high branch shear is characterized by comprising n-level rectangular tubes, wherein n is a natural number greater than or equal to 2; in every two adjacent stages of the rectangular tubes, the rectangular tube at the upper stage is telescopically sleeved in the inner cavity of the rectangular tube at the lower stage; in the n-stage moment tubes, the first-stage moment tube is a starting section moment tube, and the nth-stage moment tube is a terminating section moment tube; a cutter frame structure is detachably connected to the tail end of the nth-stage rectangular pipe; the tool rest structure can adjust the installation angle with the nth-stage rectangular tube through an angle adjuster; a sliding pull ring is detachably sleeved on the first-stage rectangular pipe, a pulley block for driving the tool rest structure to move is arranged on the tool rest structure, and a transposition pulley block for adapting to the installation angle adjustment of the tool rest structure is arranged on the tool rest structure; the pulley block, the transposition pulley block and the sliding pull ring are connected through a flexible shaft.

2. The secateurs as claimed in claim 1, wherein each two adjacent rectangular pipes are fixed by a snap fastener.

3. The secateurs as claimed in claim 2, wherein the clip comprises a movable clip, a clip bracket, a clip pin and a torsion spring, the clip bracket is used for fixing the movable clip on the rectangular tube, and the torsion spring is arranged between the clip bracket and the movable clip; the movable clamping piece is provided with the buckling pin which is abutted against the side wall of the rectangular tube at the upper stage.

4. The secateurs as claimed in claim 1, wherein the tool holder structure is inserted into the nth-order rectangular pipe; a spline hole is formed in the insertion part of the tool rest structure; the angle adjuster comprises a pressure spring, an adjusting pin and an angle adjusting gear fixed on the adjusting pin, and the angle adjusting gear is matched with the splined hole; the nth-stage moment tube is positioned at one end of the spline hole and is used for accommodating the pressure spring, and a positioning lip is arranged at the other end of the nth-stage moment tube, which is positioned in the spline hole; the adjusting pin is close to the pressure spring side and extends into the n-th-stage moment tube, and the extending tail end of the adjusting pin is matched with the positioning lip.

5. The secateur of claim 1, wherein the sliding pull ring comprises a bracket base sleeved outside the first-stage rectangular pipe and an annular flexible shaft sleeve hinged on the bracket base, and the flexible shaft penetrates through the annular flexible shaft sleeve.

6. The secateurs as claimed in claim 5, wherein the holder base is a U-shaped structure with one end open and the other end closed, the annular soft shaft sleeve is hinged to the closed end of the holder base, the open end of the holder base is provided with an elastic clip, and the elastic clip is fixed by a bolt; and mounting wheels which are abutted against the first-stage rectangular tube are arranged on three side walls of the bracket base.

7. The secateurs as claimed in claim 1, further comprising an electrical leakage alarm fixedly mounted on the nth-order rectangular pipe and disposed adjacent to the blade holder structure.

8. The secateurs as claimed in claim 1, wherein a dial for displaying the adjustment angle is provided between the tool holder structure and the n-th order rectangular pipe connecting portion; and scale marks for displaying the working distance of the tool rest structure are arranged on the n-stage rectangular tubes.

9. The secateurs as claimed in any one of claims 1 to 8, wherein the cutter holder structure is a double cutter holder structure, the double cutter holder structure comprises a pull arm, a fixed seat plate, an upper cutter and a lower cutter which are slidably arranged on the fixed seat plate; a transmission gear for enabling the up-going knife and the down-going knife to move relatively in the sliding direction is arranged between the up-going knife and the down-going knife, the transmission gear is fixed at one end of the pull arm, the other end of the pull arm is connected with the pulley block, and a return spring for resetting the up-going knife and the down-going knife is arranged between the pull arm and the down-going knife.

10. The secateurs according to any one of claims 1 to 8, wherein the blade carrier structure is any one of a hacksaw, a fruit picker, a leaf rake, and an electric power transmission fork.

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