CN112514674A - Electric scissors double-link double-knife driving mechanism and electric scissors thereof - Google Patents
Electric scissors double-link double-knife driving mechanism and electric scissors thereof Download PDFInfo
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- CN112514674A CN112514674A CN202110037572.7A CN202110037572A CN112514674A CN 112514674 A CN112514674 A CN 112514674A CN 202110037572 A CN202110037572 A CN 202110037572A CN 112514674 A CN112514674 A CN 112514674A
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- connecting rod
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- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/02—Secateurs; Flower or fruit shears
- A01G3/033—Secateurs; Flower or fruit shears having motor-driven blades
- A01G3/037—Secateurs; Flower or fruit shears having motor-driven blades the driving means being an electric motor
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Forests & Forestry (AREA)
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- Scissors And Nippers (AREA)
Abstract
The invention relates to the technical field of electric shears, in particular to a double-connecting-rod double-knife driving mechanism of electric shears and electric shears thereof, which comprise a fixed seat, an upper blade, a lower blade, a rotating part, a first connecting rod and a second connecting rod, wherein the fixed seat is provided with a first rotating shaft part and a second rotating shaft part; the occupied space of redundant teeth in operation is not required to be considered, so that the whole structure can be more compact; the part structure is simple, and the difficulty in producing and processing the part is greatly reduced, so that the manufacturing cost is reduced; first connecting rod, second connecting rod, first swing arm, second swing arm and third swing arm are more stable in the operation, and mechanical strength improves, has increased life.
Description
Technical Field
The invention relates to the technical field of electric shears, in particular to a double-connecting-rod double-knife driving mechanism of electric shears and electric shears thereof.
Background
The electric scissors are tools for pruning branches of orchards, gardens, vines and the like, and mainly comprise an upper blade, a lower blade, a gear part and an electric mechanism, wherein the electric mechanism drives the upper blade and the lower blade to rotate through the gear part so as to realize shearing action; at present, in order to realize the simultaneous driving of the two blades, that is, the simultaneous swinging of the upper blade and the lower blade realizes the shearing action, the rear parts of the upper blade and the lower blade are both provided with racks connected to gear parts, and after the gear parts are driven by an electric mechanism, the upper blade and the lower blade are driven to rotate simultaneously, and when the upper blade and the lower blade rotate simultaneously, the following difficulties exist:
firstly, in the prior art, the rear part of the blade is lengthened, so that the distance from the rack to the rotation point of the blade is increased, and the torque can be increased according to the lever principle, but after the torque is increased in such a way, the swing angle of the blade is limited, a larger gear part is needed to ensure the swing angle of the blade, and the tooth accommodating position when the gear part is not meshed with the rack needs to be considered in the position for installing the gear part, so that the occupied area after the gear is installed is large;
secondly, when the teeth are meshed with the upper blade and the lower blade, the upper blade and the lower blade are considered to rotate in two opposite directions, so that the gear part is designed in a structure, and the upper blade and the lower blade can be driven to rotate in two different directions only by ensuring two directions, so that the gear part is relatively complex in structural design and the production and processing difficulty is increased;
in summary, when the gear teeth are used to drive the upper blade and the lower blade to perform the shearing operation in the prior art, the shearing speed is low, the matching of the structure is not compact enough, the gear structure is complex, the production and processing are not easy, the mechanical strength is low, and the service life is short.
Disclosure of Invention
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an electric scissors double linkage double knives actuating mechanism, includes fixing base, last blade, bottom knife, rotating part, first connecting rod and second connecting rod, is provided with first pivot spare and second pivot spare on the fixing base, goes up blade and bottom knife and rotates around first pivot spare, and the rotating part rotates around second pivot spare, wherein:
the tail of the upper blade is provided with a first swing arm, the tail of the lower blade is provided with a second swing arm, a third swing arm is arranged on the rotating part, one ends of the first connecting rod and the second connecting rod are rotatably connected with the third swing arm, the first connecting rod and the second connecting rod are respectively movable towards two sides of the first rotating shaft part through the third swing arm, the other end of the first swing arm is rotatably connected with the first swing arm, and the other end of the second connecting rod is rotatably connected with the second swing arm.
Preferably, the first rotating shaft comprises a first fixed shaft arranged on the fixed seat and a first pressing plate arranged on the first fixed shaft, the upper blade and the lower blade are respectively provided with a first connecting hole, the upper blade and the lower blade respectively rotate around the first fixed shaft through the first connecting holes, and the upper blade and the lower blade are limited between the first pressing plate and the fixed seat.
Preferably, the second rotating shaft member includes a second fixed shaft disposed on the fixed base and a second pressing plate disposed on the second fixed shaft, the rotating member is provided with a second connecting hole, the rotating member rotates around the second fixed shaft through the second connecting hole, and the rotating member is limited between the second pressing plate and the fixed base; the second link is constrained between the first and second paddles.
Preferably, the middle part of the second connecting rod is provided with an arc-shaped avoiding part, and the second connecting rod bypasses the second pressing piece through the avoiding part.
Preferably, the first pressing piece and the second pressing piece are both in a disc-shaped structure, and the thickness of the first pressing piece and the thickness of the second pressing piece are matched with the thickness of the second connecting rod.
Preferably, a first shaft pin connecting hole penetrates through the first connecting rod, the second connecting rod and the third swing arm, a first shaft pin for movably connecting the first connecting rod, the second connecting rod and the third swing arm is arranged in the first shaft pin connecting hole, a second shaft pin for movably connecting the first connecting rod and the first swing arm is arranged between the first connecting rod and the first swing arm, a second shaft pin for movably connecting the first connecting rod and the first swing arm is arranged in the second shaft pin connecting hole, a third shaft pin connecting hole penetrates through the second connecting rod and the second swing arm, and a third shaft pin for movably connecting the second connecting rod and the second swing arm is arranged in the third shaft pin connecting hole.
The electric scissors of the electric scissors double-connecting-rod double-knife driving mechanism comprise an electric scissors double-connecting-rod double-knife driving mechanism, a shell and an electric mechanism arranged in the shell, wherein the shell is fixedly connected with a fixed seat, and the electric mechanism drives a rotating part to rotate around a second rotating shaft part.
Preferably, a driving fluted disc is arranged at the rear part of the rotating part, and a gear meshed with the driving fluted disc is connected to the power end of the electric mechanism.
Preferably, the rotating member is provided with an extension portion extending from the rotation center point to the driving fluted disc.
Compared with the prior art, the invention has the following beneficial effects:
blade and bottom knife carry out the pivoted structure in having replaced driving through gear tooth, adopt first connecting rod and second connecting rod, the first swing arm of cooperation, second swing arm and third swing arm, carry out the radian and walk the position, drive and go up blade and bottom knife and realize shearing the operation, compare in gear structure and say:
firstly, the swing amplitude degree can be increased, so that the shearing speed is increased, and the occurrence of the blocking condition caused by low speed is reduced;
secondly, the occupied space of redundant teeth in operation does not need to be considered, so that the whole structure can be more compact;
thirdly, the structure of the part is simple, and the difficulty in producing and processing the part is greatly reduced, so that the manufacturing cost is reduced;
fourth, first connecting rod, second connecting rod, first swing arm, second swing arm and third swing arm are more stable in the operation, and mechanical strength improves, has increased life.
Drawings
FIG. 1 is a schematic structural diagram of an electric scissors of a double-link double-blade driving mechanism of the electric scissors of the invention;
FIG. 2 is a schematic structural diagram of a double-link and double-blade driving mechanism of an electric shears according to the present invention;
fig. 3 is an exploded view of the structure of the double-link and double-blade driving mechanism of the electric shears.
The reference numerals and names in the figures are as follows:
1-a first shaft pin, 2-a second shaft pin, 3-a third shaft pin, 4-a first shaft pin connecting hole, 5-a second shaft pin connecting hole, 6-a third shaft pin connecting hole, 10-a fixed seat, 20-an upper blade, 30-a lower blade, 40-a rotating part, 50-a shell, 60-a first connecting rod, 70-a second connecting rod, 11-a first rotating shaft part, 12-a second rotating shaft part, 111-a first fixed shaft, 112-a first pressing sheet, 121-a second fixed shaft, 122-a second pressing sheet, 21-a first swinging arm, 22-a first connecting hole, 31-a second swinging arm, 41-a third swinging arm, 42-a second connecting hole, 43-a driving fluted disc, 44-an extension part and 71-an avoiding part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a double-link double-blade driving mechanism for an electric shears includes a fixing base 10, an upper blade 20, a lower blade 30, a rotating member 40, a first link 60 and a second link 70, wherein the fixing base 10 is provided with a first rotating shaft 11 and a second rotating shaft 12, the upper blade 20 and the lower blade 30 rotate around the first rotating shaft 11, and the rotating member 40 rotates around the second rotating shaft 12, wherein:
the tail of the upper blade 20 is provided with a first swing arm 21, the tail of the lower blade 30 is provided with a second swing arm 31, the rotating part 40 is provided with a third swing arm 41, one ends of the first connecting rod 60 and the second connecting rod 70 are rotatably connected with the third swing arm 41, the first connecting rod 60 and the second connecting rod 70 respectively move towards two sides of the first rotating shaft part 11 through the third swing arm 41, the other end of the first swing arm 21 is rotatably connected with the first swing arm 21, and the other end of the second connecting rod 70 is rotatably connected with the second swing arm 31.
In the above technical means, the fixed seat 10, the upper blade 20, the lower blade 30, the rotating member 40, the first link 60 and the second link 70 are provided as a double-link double-blade driving mechanism of the electric shears, and the rotating member 40 is adopted to drive the first link 60 and the second link 70, so that the first link 60 and the second link 70 move towards two sides of the first rotating shaft 11, and the first swing arm 21 and the second swing arm 31 are driven to swing forwards or backwards respectively, wherein, as an example, the blade 20 and the lower blade 30 perform shearing movement, when the third swing arm 41 swings forwards, the third swing arm 41 is close to the first rotating shaft 11, and because the third swing arm 41 and the second swing arm 31 are limited by the second link 70, the second swing arm 31 swings towards a direction far away from the third swing arm 41, that is, that the lower blade 30 is controlled to rotate upwards; similarly, because third swing arm 41 and first swing arm 21 receive the restriction of first link 60, first swing arm 21 will be towards the direction swing of keeping away from third swing arm 41, control blade 20 and rotate downwards promptly, thereby realize the shearing action of blade 20 and lower blade 30, through this design, replaced and carried out pivoted structure through blade 20 and lower blade 30 in the drive of gear tooth, adopt first link 60 and second link 70, cooperate first swing arm 21, second swing arm 31 and third swing arm 41, the steam generator is simple in structure, the part production processing degree of difficulty, and can be compacter in the design of structure, improve holistic stability, thereby whole life has been improved.
As further shown in fig. 3, the first rotating shaft 11 includes a first fixing shaft 111 disposed on the fixing base 10 and a first pressing plate 112 disposed on the first fixing shaft 111, the upper blade 20 and the lower blade 30 are respectively provided with a first connection hole 22, the upper blade 20 and the lower blade 30 are respectively rotated around the first fixing shaft 111 through the first connection hole 22, and the upper blade 20 and the lower blade 30 are confined between the first pressing plate 112 and the fixing base 10, and the shearing engagement of the upper blade 20 and the lower blade 30 is achieved by disposing the first rotating shaft 11 as the first fixing shaft 111 and the first pressing plate 112.
As further shown in fig. 3, the second rotating shaft member 12 includes a second fixed shaft 121 disposed on the fixed base 10 and a second pressing plate 122 disposed on the second fixed shaft 121, the rotating member 40 is provided with a second connecting hole 42, the rotating member 40 rotates around the second fixed shaft 121 through the second connecting hole 42, and the rotating member 40 is limited between the second pressing plate 122 and the fixed base 10; the second link 70 is constrained between the first blade 112 and the second blade 122; the second rotating shaft member 12 is provided with the second fixed shaft 121 and the second pressing piece 122, so that the second rotating shaft member is rotatably matched with the rotating member 40, the second connecting rod 70 can be limited by the first pressing piece 112 and the second pressing piece 122, the structure is simple, and the first connecting rod 60 and the second connecting rod 70 can move towards two sides of the first rotating shaft member 11.
As further shown in fig. 2-3, the middle of the second link 70 is provided with an arc-shaped space-avoiding portion 71, and the second link 70 bypasses the second pressing plate 122 through the space-avoiding portion 71, so that the length of the first swing arm 21 can be ensured, and the shearing force of the lower blade 30 can be increased.
As further shown in fig. 2-3, the first pressing plate 112 and the second pressing plate 122 are each in a disc shape, and the thickness of the first pressing plate 112 and the second pressing plate 122 matches the thickness of the second link 70.
As further shown in fig. 3, a first shaft pin connecting hole 4 is formed through the first connecting rod 60, the second connecting rod 70 and the third swing arm 41, a first shaft pin 1 for movably connecting the first connecting rod 60, the second connecting rod 70 and the third swing arm 41 is arranged in the first shaft pin connecting hole 4, a second shaft pin connecting hole 5 is formed through the first connecting rod 60 and the first swing arm 21, a second shaft pin 2 for movably connecting the first connecting rod 60 and the first swing arm 21 is arranged in the second shaft pin connecting hole 5, a third shaft pin connecting hole 6 is formed through the second connecting rod 70 and the second swing arm 31, and a third shaft pin 3 for movably connecting the second connecting rod 70 and the second swing arm 31 is arranged in the third shaft pin connecting hole 6, so that the first connecting rod 60, the second connecting rod 70, the first swing arm 21, the second swing arm 31 and the third swing arm 41 are movably connected.
The utility model provides an electric scissors of electric scissors double link double knives actuating mechanism, includes an electric scissors double link double knives actuating mechanism, still includes shell 50 and the electric mechanism of setting in shell 50, shell 50 and fixing base 10 fixed connection, and electric mechanism drives rotating member 40 and rotates around second pivot spare 12, realizes rotating member 40's swing to blade 20 and bottom knife 30 cut the operation in the drive.
As further shown in fig. 1-3, a driving fluted disc 43 is arranged at the rear part of the rotating component 40, and a gear meshed with the driving fluted disc 43 is connected to the power end of the electric mechanism; the power connection between the electric mechanism and the rotating part 40 is realized by arranging the matching of the driving fluted disc 43 and the gear.
As further shown in fig. 2-3, the rotating member 40 is extended from the center point of rotation to the driving gear 43 to form an elongated portion 44, so as to increase the swing amplitude of the driving gear 43, and reduce the resistance of the electric mechanism driving the driving gear 43 to rotate.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides an electric scissors double link double knives actuating mechanism which characterized in that: including fixing base, last blade, bottom knife, rotating part, first connecting rod and second connecting rod, be provided with first pivot spare and second pivot spare on the fixing base, go up blade and bottom knife and rotate around first pivot spare, rotating part rotates around second pivot spare, wherein:
the tail of the upper blade is provided with a first swing arm, the tail of the lower blade is provided with a second swing arm, a third swing arm is arranged on the rotating part, one ends of the first connecting rod and the second connecting rod are rotatably connected with the third swing arm, the first connecting rod and the second connecting rod are respectively movable towards two sides of the first rotating shaft part through the third swing arm, the other end of the first swing arm is rotatably connected with the first swing arm, and the other end of the second connecting rod is rotatably connected with the second swing arm.
2. A scissors double link double knife drive mechanism as claimed in claim 1, wherein: first pivot spare is including setting up the first fixed axle on the fixing base and setting up the first preforming on the first fixed axle again, is provided with first connecting hole on last blade and the lower blade respectively, goes up blade and lower blade and rotates around first fixed axle through first connecting hole respectively to go up blade and lower blade restriction between first preforming and fixing base.
3. A scissors double link double knife drive mechanism as claimed in claim 2, wherein: the second rotating shaft part comprises a second fixed shaft arranged on the fixed seat and a second pressing plate arranged on the second fixed shaft, a second connecting hole is formed in the rotating part, the rotating part rotates around the second fixed shaft through the second connecting hole, and the rotating part is limited between the second pressing plate and the fixed seat; the second link is constrained between the first and second paddles.
4. A scissors double link double knife drive mechanism as claimed in claim 3, wherein: the middle part of the second connecting rod is provided with an arc-shaped avoiding part, and the second connecting rod bypasses the second pressing piece through the avoiding part.
5. An electric shears double link double knife drive mechanism as claimed in claim 4, wherein: the first pressing piece and the second pressing piece are both of a disc-shaped structure, and the thickness of the first pressing piece and the thickness of the second pressing piece are matched with that of the second connecting rod.
6. A scissors double link double knife drive mechanism as claimed in claim 1, wherein: the first connecting rod, it is provided with first pivot round pin connecting hole to run through between second connecting rod and the third swing arm, be provided with the first pivot that is used for swing joint first connecting rod in the first pivot round pin connecting hole, the first pivot of second connecting rod and third swing arm, it is provided with second pivot round pin connecting hole to run through between first connecting rod and the first swing arm, be provided with the second axle round pin that is used for swing joint first connecting rod and first swing arm in the second pivot round pin connecting hole, it is provided with the third pivot round pin connecting hole to run through between second connecting rod and the second swing arm, be provided with the third pivot that is used for swing joint second connecting rod and second swing arm in.
7. Electric shears of a double link double pole drive mechanism for electric shears comprising a double link double pole drive mechanism for electric shears according to claims 1-6, characterized in that: still include the shell and set up the electric mechanism in the shell, shell and fixing base fixed connection, electric mechanism drives the rotating member and rotates around second pivot spare.
8. The electric shears of the electric shears double-link double-pole driving mechanism according to claim 7, wherein: the rear part of the rotating part is provided with a driving fluted disc, and the power end of the electric mechanism is connected with a gear meshed with the driving fluted disc.
9. The electric shears of claim 8, wherein the electric shears further comprise a pair of connecting rods and a pair of blades, and the pair of connecting rods is connected to the pair of blades by a pair of connecting rods: the rotating component is provided with an extension part at a position between the rotating central point and the driving fluted disc in an extending way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110037572.7A CN112514674A (en) | 2021-01-12 | 2021-01-12 | Electric scissors double-link double-knife driving mechanism and electric scissors thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110037572.7A CN112514674A (en) | 2021-01-12 | 2021-01-12 | Electric scissors double-link double-knife driving mechanism and electric scissors thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112514674A true CN112514674A (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110037572.7A Pending CN112514674A (en) | 2021-01-12 | 2021-01-12 | Electric scissors double-link double-knife driving mechanism and electric scissors thereof |
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| CN (1) | CN112514674A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790941A (en) * | 2009-01-30 | 2010-08-04 | 美克司株式会社 | Electric shear |
| TW201725969A (en) * | 2015-09-14 | 2017-08-01 | Max Co Ltd | Electric scissors |
| CN208001593U (en) * | 2018-01-11 | 2018-10-26 | 长江大学 | A kind of Multifunctional garden pruning device |
| CN111386882A (en) * | 2020-04-07 | 2020-07-10 | 田文良 | Town road plant flowers and plants trimming means |
| CN211020137U (en) * | 2019-11-26 | 2020-07-17 | 甘肃机电职业技术学院（甘肃省机械工业学校、甘肃省机械高级技工学校） | Electric scissors |
| CN214430366U (en) * | 2021-01-12 | 2021-10-22 | 东莞市嘉航实业有限公司 | Electric scissors double-link double-knife driving mechanism and electric scissors thereof |
-
2021
- 2021-01-12 CN CN202110037572.7A patent/CN112514674A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790941A (en) * | 2009-01-30 | 2010-08-04 | 美克司株式会社 | Electric shear |
| TW201725969A (en) * | 2015-09-14 | 2017-08-01 | Max Co Ltd | Electric scissors |
| CN208001593U (en) * | 2018-01-11 | 2018-10-26 | 长江大学 | A kind of Multifunctional garden pruning device |
| CN211020137U (en) * | 2019-11-26 | 2020-07-17 | 甘肃机电职业技术学院（甘肃省机械工业学校、甘肃省机械高级技工学校） | Electric scissors |
| CN111386882A (en) * | 2020-04-07 | 2020-07-10 | 田文良 | Town road plant flowers and plants trimming means |
| CN214430366U (en) * | 2021-01-12 | 2021-10-22 | 东莞市嘉航实业有限公司 | Electric scissors double-link double-knife driving mechanism and electric scissors thereof |
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