CN2605728Y - Improved structure of tree pruner - Google Patents

Improved structure of tree pruner Download PDF

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Publication number
CN2605728Y
CN2605728Y CN 03224119 CN03224119U CN2605728Y CN 2605728 Y CN2605728 Y CN 2605728Y CN 03224119 CN03224119 CN 03224119 CN 03224119 U CN03224119 U CN 03224119U CN 2605728 Y CN2605728 Y CN 2605728Y
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CN
China
Prior art keywords
knife
arm
knife plate
blade
fixed
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Expired - Fee Related
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CN 03224119
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Chinese (zh)
Inventor
王光彬
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Individual
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Individual
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Abstract

The utility model discloses a modified structure of a high twig shears, which comprises a connection rod. The connection rod is fixed with a fixed plate which has a lower knife edge facing downward; the fixed plate is hinged with a transmittable knife plate, the lower knife edge of the knife plate corresponding to the fixed plate is provided with a first edge part, and the first edge part can cut relative to the lower knife edge when rotating the knife plate; the knife plate is also connected with a set of rocker arms that can drive the knife plate to rotate, The utility model is characterized in that the fixed plate is also provided with an upper knife edge facing upward, the knife plate is also provided with a second edge part corresponding to the upper knife edge, and the second edge part and the first edge part are respectively positioned at different sides of the knife plate, and the second edge part can cut relative to the upper knife edge when the knife plate rotates. The modified structure of the high twig shears designed in the utility model has dual functions of pruning small branches and shearing rather rough branches, and can significantly facilitate the working.

Description

The improvement structure of averruncator
[technical field]
The utility model relates to a kind of gardening averruncator.
[background technology]
The structure of the averruncator that present gardening is used generally is such, with reference to figure 9, on extension bar 81, be combined with a fixed head 82, this fixed head 82 is provided with a rotating knife plate 83, and this fixed head 82 has an edge of a knife 821 down, and 83 pairs of knife plates should have a blade 831 by the edge of a knife 821, this knife plate 83 is extended with arm 84 towards the direction away from this blade 831, be provided with extension spring 85 between this arm 84 and this fixed head 82, and by the elastic force effect of this extension spring 85, make this knife plate 83 under normality, keep blade 831 not enter the position of the edge of a knife 821, and an end 841 of arm 84 is respectively equipped with pulley 87 with extension bar 81,88, other has rope 89 to be set around pulley 87,88, and can order about knife plate 83 rotations by drive arm 84 by this rope 89 of pulling, and move to produce shear action relative to this edge of a knife 821 of what by blade 831.
With reference to Figure 10, be connected to extension bar 81 with stock 80 during use, so that the edge of a knife 821 is hooked in from top to bottom on the limb 9 of trees, pulling rope 89 and drive arm 84 and order about knife plate 83 and rotate again, and move closure with respect to this edge of a knife 821 by this blade 831, cut off this limb 9.Yet; because thicker limb is gone up the other living many small stems of regular meeting; make the edge of a knife of fixed head be not easy to be hooked on the limb; and the small stems that needs earlier the side to be given birth to is pruned; the edge of a knife could be hooked in limb, still, in limb and the sprig part of growing thickly; it is very inconvenient this edge of a knife down will being hooked in and pruning small stems on the small stems, and therefore this averruncator need improve.
[utility model content]
First purpose of the present utility model is to provide the trunk of a kind of pruning trees easily and the improvement structure of other vimineous averruncator.
Second purpose of the present utility model is to satisfy on the basis of first purpose, and the improvement structure of a kind of labour-saving averruncator is provided.
For realizing first purpose, the improvement structure of the averruncator of the utility model design is achieved in that a kind of improvement structure of averruncator, comprise an extension bar, be fixed with a fixed head on this extension bar, this fixed head has a downward following edge of a knife, but the knife plate of a hinged transmission on the fixed head, the following edge of a knife of the corresponding fixed head of this knife plate has one first blade, and when being rotated, this knife plate can produce shear action with respect to the edge of a knife down by first blade, this knife plate also is connected with one can drive the rocking arm set that knife plate rotates, it is characterized in that: be provided with the last edge of a knife that an opening makes progress on the fixed head in addition, be provided with one and corresponding second blade of the last edge of a knife on the knife plate in addition, and second blade and first blade lay respectively at the not homonymy of knife plate, and can produce shear action with respect to the last edge of a knife by second blade when knife plate is rotated.
Such scheme can further be improved to: knife plate convexes with a linkage section that is connected with rocking arm set; be connected with spring between rocking arm set and the fixed head; and act on rocking arm set by the elastic force of this spring; make knife plate remain on the position that first and second blade does not enter the upper and lower edge of a knife; and this rocking arm set is provided with one first pulley away from an end of linkage section; and corresponding first pulley is provided with one second pulley on the extension bar; and be arranged with rope between this first and second pulley; an end of this rope extends for drawing downwards, make rocking arm set drive the knife plate rotation.
Further improvement as such scheme, it is characterized in that: first blade on the knife plate forms a knife back towards the extension of the second blade direction, on the fixed head to being convexly equipped with out a block by the knife back, has an intersegmental distance between the hinged place of fixed head and knife plate and this block, this spacing is greater than the distance of the hinged place and the knife back, make when first and second blade and do not enter upper and lower edge of a knife position, and knife plate is switched to first and second blade when sealing the position of the upper and lower edge of a knife respectively, this block can be respectively for the knife back against the stroke that rotates with the restriction knife plate.
Above-mentioned rocking arm set is made up of fixed arm and lever arm, this fixed arm is fixed on the knife plate, and but lever arm is to be combined on the fixed arm with the form that multistage moves, and the spacing that can adjust between lever arm and the fixed arm changes the length of rocking arm set, thereby can adjust the length that rocking arm set drives the arm of force that knife plate rotates.
Further improvement as such scheme, it is characterized in that: fixed arm is provided with a set bolt that passes lever arm, lever arm is to being provided with one first elongated slot by set bolt, and also be equipped with a movable bolt that passes fixed arm on the lever arm, on the fixed arm to being provided with one second elongated slot by movable bolt, be interval with a plurality of expansion sections on this second elongated slot, movable bolt has a bigger diameter end and a miner diameter end, the external diameter of this bigger diameter end cooperates with the expansion section, but positioning and fixing arm and lever arm when making bigger diameter end penetrate this expansion section, and the external diameter of the miner diameter end of movable bolt cooperates with elongated slot, lever arm can move with respect to fixed arm when making miner diameter end be through at elongated slot, the end that the miner diameter end of movable bolt stretches out in second elongated slot is provided with a block nut, and but this miner diameter end is arranged with the spring of a pushing tow block nut between block nut and fixed arm, making movable bolt is the expansion section that is arranged in second elongated slot by bigger diameter end under normal conditions, with positioning and fixing arm and lever arm.
When using the utility model, earlier the improvement of averruncator is constructed between the branch that from bottom to top penetrates on the limb, and the branch that desire is pruned is inserted in the last edge of a knife of structurally improved fixed head of averruncator, making rocking arm set drive knife plate then rotates, and by second blade on the knife plate branch is cut off, after branch is pruned, the structurally improved edge of a knife down of averruncator from top to bottom is hooked on the thicker limb, making rocking arm set drive knife plate then rotates, and by first blade on the knife plate limb is cut off, prune small stems and the dual-use function of pruning thick limb so the improvement of the designed averruncator of the utility model structure has concurrently, make work very convenient.
Rope by institute's winding in the pulley on pulling rocking arm set and the connecting rod can drive the rocking arm set motion; Also be connected with spring between rocking arm set and the fixed head, and act on rocking arm set by the elastic force of this spring, make under the normality (not spurring rope), first and second blade that the knife plate that is connected with rocking arm set is remained on does not enter the position of the upper and lower edge of a knife.
The knife back of corresponding knife plate is convexly equipped with out a block on the fixed head, so can be for the knife back against the stroke that rotates with the restriction knife plate.
Because the length of rocking arm set can be regulated,, save time or the labour-saving effect to reach so can adjust the size that rocking arm set drives the arm of force of this knife plate rotation according to actual needs.The length of rocking arm set is regulated the position of geocoded activity arm by a movable bolt, uses very convenient.
[description of drawings]
Fig. 1 is a three-dimensional exploded view of the present utility model;
Fig. 2 is a stereogram of the present utility model;
Fig. 3 A is a plane of the present utility model;
Fig. 3 B is that knife plate of the present utility model rotates the floor map that the back is stopped by block;
Fig. 4 is the schematic diagram that the large and small footpath portion of movable bolt of the present utility model cooperates with second elongated slot and expansion section thereof.
Fig. 5 is that the large-diameter portion of the utility model movable bolt is arranged in the structural representation between fixed arm and lever arm;
Schematic diagram when Fig. 6 is the utility model pruning branch;
Fig. 7 is the schematic diagram that rocking arm set of the present utility model is adjusted length;
Schematic diagram when Fig. 8 is the utility model pruning limb;
Fig. 9 is the structural representation of existing averruncator;
Figure 10 is existing averruncator work schematic diagram.
[specific embodiment]
Extremely shown in Figure 5 as Fig. 1, the utility model comprises fixed head 1, this fixed head 1 is mounted on the connecting rod 10, and this fixed head 1 has down the following edge of a knife 11 and up the last edge of a knife 12, other establishes one and is articulated in knife plate 2 on the fixed head 1 with articulated elements 201, the following edge of a knife 11 and the last edge of a knife 12 of these knife plate 2 corresponding fixed heads 1 have first blade 21 and second blade 22 respectively, and this first blade 21 and second blade 22 are the not homonymies that lay respectively at this knife plate 2, can produce shear action with respect to the following edge of a knife 11 and the last edge of a knife 12 respectively by this first blade 21 and second blade 22 when this knife plate 2 is rotated.
First blade 21 extends and forms the knife back 24 towards second blade, 22 directions, to being protruding with block 16 by the knife back 24, has spacing A between this block 16 and this articulated part 201 on the fixed head 1, this spacing A greater than between the articulated part 201 and the knife back 24 apart from B.Shown in 3A figure, and make block 16 not enter the upper and lower edge of a knife 11,12 positions (position as shown in 3A figure) in first and second blade 21,22, and this knife plate 2 turns to the position (position as shown in 3B figure) that this first and second blade 21,22 seals this upper and lower edge of a knife 11,12 respectively, different parts for this knife back 24 abuts against respectively, to limit the stroke that this knife plate 2 rotates.
This knife plate 2 has protruded out a linkage section 23, this linkage section 23 is to link for rocking arm set 3, be provided with an extension spring 14 between this rocking arm set 3 and the fixed head 1, make knife plate 2 remain in the position that first and second blade 21,22 does not enter the upper and lower edge of a knife 11,12 by 14 elastic force effect on this extension spring.And rocking arm set 3 is provided with first pulley 31 away from one of this linkage section 23 end.And 10 pairs of this extension bars should be provided with second pulley 101 by first pulley 31, and this 31,101 on first and second pulley is arranged with a rope 15, and an end of this rope 15 is to extend for drawing downwards, make 2 rotations of rocking arm set 3 drive knife plates.
Rocking arm set 3 is made up of fixed arm 32 and lever arm 33, fixed arm 32 is the linkage sections 23 that are linked to knife plate 2, this fixed arm 32 is provided with and passes one of this lever arm 33 set bolt 34, and 33 pairs of this lever arms should have one first length poor 331 by set bolt 34, and this lever arm 33 is equipped with and passes one of this fixed arm 32 movable bolt 35, and 32 pairs of this fixed arms should have one second elongated slot 321 by movable bolt 35, this second elongated slot 321 is interval with three expansion sections 322, this movable bolt 35 has big footpath section 351 and one a path section 352, should the big directly external diameter of section 351 be to cooperate with this expansion section 322, shown in the 4th figure, can be when big footpath section 351 is arranged in this expansion section 322 for location this fixed arm 32 and this lever arm 33, and the external diameter of this path section 352 is to cooperate with this second elongated slot 321, when path section 352 is arranged in this second elongated slot 321, this lever arm 33 is moved with respect to this fixed arm 32, can change the length of this rocking arm set 3 by relatively moving between lever arm 33 and the fixed arm 32, drive the arm of force size that knife plate 2 rotates thereby change rocking arm set 3.
And the path section 352 of this movable bolt 36 stretches out in one of this second elongated slot 321 end and revolves lock one block nut 353 is arranged, and this path section 352 is arranged with a spring 354 in this block nut 353 and 32 of stationary pipes, by this block nut 353 of elastic force pushing tow of this spring 354, make movable bolt 35 under normality, be arranged in the expansion section 322 of this second elongated slot 321 entirely by this big footpath section 351.Shown in the 5th figure, with positioning and fixing arm 32 and lever arm 33.
The improvement structure of the averruncator of the utility model can be plugged in this extension bar 10 with a stock 4 when using and use.When needs are grown thickly part when cutting off limb 5 limb 5 and sprig 51, the improvement structure of averruncator can be penetrated 51 in branch from bottom to top, shown in the 6th figure, the branch 51 that desire is pruned enters in the edge of a knife 12, pull down running rope 15 again, rotate so that this rocking arm set 3 drives this knife plate 2, and branch 51 is pruned by this second blade 22.Because branch 51 is thinner, less in order to the power of pruning branch 51, therefore, this rocking arm set 3 can be adjusted to the shortest form of entire length, so that prune branch 51 fast.Certainly, the last edge of a knife 12 can make equally and be used for cutting off thicker limb 5.
After branch is pruned, just can cut off the work of limb, because limb is thicker, it is bigger to cut off the required power of limb.Therefore this rocking arm set 3 can be adjusted to the longest form of entire length, shown in the 7th figure, just can more effortlessly limb be cut off, when adjusting rocking arm set 3, but the application of force compresses the block nut 353 of this movable bolt 35, the path section 352 of movable bolt 35 is entered in this second elongated slot 321, shown in the 4th figure.This lever arm 33 outwards can be pulled out, treat lever arm 33 draw move to the location after, the elastic force of this spring 354 just can this block nut 353 of pushing tow, these movable bolt 35 big footpath sections 351 are penetrated in this second long expansion section 322 of poor 321, shown in the 5th figure, and this fixed arm 32 is located mutually with this lever arm 33.
After rocking arm set 3 is adjusted and is finished, just can will descend the edge of a knife 11 to be hooked in from top to bottom on the thicker limb 5, shown in the 8th figure, pull down running rope 15 again, rotate so that this rocking arm set 3 drives this knife plate 2, and will be arranged in the limb 5 of the edge of a knife 11 to cut off, because these rocking arm set 3 modulated extreme lengths that are made into by this first blade 21, therefore, can cut off thicker limb 5 more effortlessly.
In addition, the improvement of the averruncator that the utility model is designed is constructed visual actual needs install the saw blade (not shown) additional on fixed head 1, is used for sawed-off trunk so that make.

Claims (5)

1, a kind of improvement structure of averruncator, comprise an extension bar, be fixed with a fixed head on this extension bar, this fixed head has a downward following edge of a knife, but the knife plate of a hinged transmission on the fixed head, the following edge of a knife of the corresponding fixed head of this knife plate has one first blade, and when being rotated, this knife plate can produce shear action with respect to the edge of a knife down by first blade, this knife plate also is connected with one can drive the rocking arm set that knife plate rotates, it is characterized in that: be provided with the last edge of a knife that an opening makes progress on the fixed head in addition, be provided with one and corresponding second blade of the last edge of a knife on the knife plate in addition, and second blade and first blade lay respectively at the not homonymy of knife plate, and can produce shear action with respect to the last edge of a knife by second blade when knife plate is rotated.
2, the improvement structure of averruncator according to claim 1, it is characterized in that: knife plate convexes with a linkage section that is connected with rocking arm set; be connected with spring between rocking arm set and the fixed head; and act on rocking arm set by the elastic force of this spring; make knife plate remain on first; two blades do not enter down; to go up the position of the edge of a knife; and this rocking arm set is provided with one first pulley away from an end of linkage section; and corresponding first pulley is provided with one second pulley on the extension bar; and this is first years old; be arranged with rope between two pulleys; an end of this rope extends downwards for drawing, makes rocking arm set drive the knife plate rotation.
3, construct according to the improvement of claims 1 described averruncator, it is characterized in that: first blade on the knife plate forms a knife back towards the extension of the second blade direction, on the fixed head to being convexly equipped with out a block by the knife back, has an intersegmental distance between the hinged place of fixed head and knife plate and this block, this spacing is greater than the distance of the hinged place and the knife back, make when first and second blade and do not enter upper and lower edge of a knife position, and knife plate is switched to first and second blade when sealing the position of the upper and lower edge of a knife respectively, this block can be respectively for the knife back against the stroke that rotates with the restriction knife plate.
4, the improvement of averruncator according to claim 1 structure, it is characterized in that: rocking arm set is made up of fixed arm and lever arm, this fixed arm is fixed on the knife plate, and but lever arm is to be combined on the fixed arm with the form that multistage moves, and the spacing that can adjust between lever arm and the fixed arm changes the length of rocking arm set, thereby can adjust the length that rocking arm set drives the arm of force that knife plate rotates.
5, the improvement structure of averruncator according to claim 4, it is characterized in that: fixed arm is provided with a set bolt that passes lever arm, lever arm is to being provided with one first elongated slot by set bolt, and also be equipped with a movable bolt that passes fixed arm on the lever arm, on the fixed arm to being provided with one second elongated slot by movable bolt, be interval with a plurality of expansion sections on this second elongated slot, movable bolt has a bigger diameter end and a miner diameter end, the external diameter of this bigger diameter end cooperates with the expansion section, but positioning and fixing arm and lever arm when making bigger diameter end penetrate this expansion section, and the external diameter of the miner diameter end of movable bolt cooperates with elongated slot, lever arm can move with respect to fixed arm when making miner diameter end be through at elongated slot, the end that the miner diameter end of movable bolt stretches out in second elongated slot is provided with a block nut, and but this miner diameter end is arranged with the spring of a pushing tow block nut between block nut and fixed arm, making movable bolt is the expansion section that is arranged in second elongated slot by bigger diameter end under normal conditions, with positioning and fixing arm and lever arm.
CN 03224119 2003-03-06 2003-03-06 Improved structure of tree pruner Expired - Fee Related CN2605728Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03224119 CN2605728Y (en) 2003-03-06 2003-03-06 Improved structure of tree pruner

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Application Number Priority Date Filing Date Title
CN 03224119 CN2605728Y (en) 2003-03-06 2003-03-06 Improved structure of tree pruner

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CN2605728Y true CN2605728Y (en) 2004-03-10

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101371640B (en) * 2007-08-22 2010-09-29 上海沃施园艺股份有限公司 High altitude scissors
CN102487739A (en) * 2009-07-17 2012-06-13 苏州宝时得电动工具有限公司 Plant trimmer
CN102131380B (en) * 2008-08-26 2014-09-17 罗伯特·博世有限公司 Vegetation cutting tool
CN105409606A (en) * 2015-12-15 2016-03-23 桐城市中盛园林绿化工程有限公司 High-branch scissors
CN109496587A (en) * 2018-12-13 2019-03-22 国网山东省电力公司烟台供电公司 A kind of pruning trees all-purpose instrument

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101371640B (en) * 2007-08-22 2010-09-29 上海沃施园艺股份有限公司 High altitude scissors
CN102131380B (en) * 2008-08-26 2014-09-17 罗伯特·博世有限公司 Vegetation cutting tool
CN102487739A (en) * 2009-07-17 2012-06-13 苏州宝时得电动工具有限公司 Plant trimmer
CN105409606A (en) * 2015-12-15 2016-03-23 桐城市中盛园林绿化工程有限公司 High-branch scissors
CN109496587A (en) * 2018-12-13 2019-03-22 国网山东省电力公司烟台供电公司 A kind of pruning trees all-purpose instrument

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20040310

Termination date: 20110306