CN109197212B - Hand-shearing-preventing energy-saving agricultural pruning shears - Google Patents
Hand-shearing-preventing energy-saving agricultural pruning shears Download PDFInfo
- Publication number
- CN109197212B CN109197212B CN201811358054.XA CN201811358054A CN109197212B CN 109197212 B CN109197212 B CN 109197212B CN 201811358054 A CN201811358054 A CN 201811358054A CN 109197212 B CN109197212 B CN 109197212B
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- Prior art keywords
- rotating arm
- piston
- cutting edge
- rotor arm
- arm
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1861—Rotary generators driven by animals or vehicles
Abstract
The invention discloses an anti-shearing energy-saving agricultural pruning shear, which comprises a first rotating arm and a second rotating arm which are mutually hinged, wherein a first spring is arranged between handheld parts, a hinged part comprises a nut and a screw sleeve, the middle part of the screwed part of the nut and the screw sleeve is formed into a piston cavity, two side surfaces of the piston cavity are provided with guide through holes, a coil is fixedly arranged in the piston cavity, a piston is arranged in the piston cavity in a sliding manner, a sliding iron core is arranged on the piston, a reset spring is arranged between the piston and the end surface of the piston cavity, the piston is provided with a guide rod penetrating through the guide through holes, the end part of the guide rod is provided with a tooth-shaped bulge, a gear ring is fixedly arranged in a hole matched with the screw sleeve on the second rotating arm, the first rotating arm is provided with a battery, the handheld parts are provided with insulating rubber sleeves, the outer sides of the insulating rubber sleeves are provided with conductive contact pieces. The agricultural pruning shears can prevent self damage caused by misoperation.
Description
Technical Field
The invention belongs to the technical field of branch pruning tools, and particularly relates to an anti-shearing energy-saving agricultural pruning shear, which is used for pruning branches of fruit trees and gardening.
Background
Pruning shears are tools used for pruning fruit trees and horticultural trees. The pruning scissors that are most commonly used are similar to scissors, including two pivoted rotor arms each other, and the one side that lies in articulated position on two rotor arms is the cutting edge of mutually supporting, and the opposite side is handheld portion, is equipped with the spring that the rotor arm was opened to the bullet generally between two handheld portions, and this kind of pruning scissors structure is light and handy, conveniently carries convenient operation.
However, in the long-time trimming process, especially in the process of trimming the rattans, due to the complicated growth of the rattans, one hand is required to hold the rattans and the other hand is required to cut the rattans, and if the operation is wrong, the user can easily cut his hand, so that the safety is not high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the anti-shearing energy-saving agricultural pruning shears which can stop rotating when the cutting edge touches the body part of the agricultural pruning shears so as to prevent the agricultural pruning shears from being damaged by misoperation.
In order to solve the technical problem, the invention is solved by the following technical scheme: the utility model provides an energy-saving agricultural pruning scissors of anti-shear hand, includes first rotor arm and the second rotor arm of mutual articulated through the articulated elements, the one side that lies in the articulated position on first rotor arm and the second rotor arm is provided with first cutting edge and the second cutting edge of mutually supporting respectively, the opposite side that first rotor arm and the second rotor arm lie in the articulated position is handheld portion, be provided with the first spring of bullet division first rotor arm and the second rotor arm between the handheld portion, the articulated elements includes nut and swivel nut, nut and swivel nut revolve the middle part and form the piston chamber and piston chamber both sides face is provided with guiding hole, the fixed coil that is provided with in piston chamber, the slip is provided with the piston in the piston chamber, be provided with on the piston with coil complex slip iron core, the piston with be provided with reset spring between the piston chamber terminal surface, the piston is provided with a guide rod penetrating through the guide through hole, the end part of the guide rod is provided with a tooth-shaped bulge, the nut is fixedly connected with the first rotating arm, the second rotating arm is rotatably sleeved on the screw sleeve, a gear ring is fixed in a hole on the second rotating arm, which is matched with the screw sleeve, and the guide rod slides in the guide through hole to position or separate the tooth-shaped bulge and the gear ring; the battery is arranged on the first rotating arm, the insulating rubber sleeve is arranged on the handheld portion, a conductive contact piece is arranged on the outer side of the insulating rubber sleeve, the first cutting edge is connected with the positive electrode or the negative electrode of the battery after being connected with the coil, and the conductive contact piece is connected with the other electrode of the battery. When the pruning shears are used, one hand of a person is held on the insulating rubber sleeve to be in contact with the conductive contact piece, the other parts of the body of the person are in contact with the first cutting edge, the insulating rubber sleeve is connected with the coil to form a passage, the coil can attract the sliding iron core to move to enable the tooth-shaped protrusion to slide into the gear ring position, the position between the tooth-shaped protrusion and the gear ring is limited, so that the first rotating arm and the second rotating arm cannot continuously rotate, and the part of the body of the person is prevented from being cut during use.
In the above technical solution, preferably, the first rotating arm is provided with a power generation assembly, a rotating shaft of the power generation assembly is connected with a first gear through a one-way bearing, the second rotating arm is provided with an arc rack, the arc rack is in transmission with the first gear through a double-layer gear, and the battery is connected with the power generation assembly. This kind of pruning scissors does not need the battery of large capacity and change the battery owing to can continuously charge the battery when using for the whole weight of pruning scissors reduces.
In the above technical solution, preferably, a winding motor is arranged on the first rotating arm, a winding wheel is arranged on the winding motor, a pull rope is connected between the winding wheel and the second rotating arm, the first cutting edge is rotatably connected to the first rotating arm, a limiting protrusion is arranged on the first rotating arm, a second spring is arranged between the limiting protrusion and the first cutting edge, one side of a rotation center of the first cutting edge abuts against the other side of the second spring and abuts against the limiting protrusion, and a tact switch for controlling the winding motor is arranged on the limiting protrusion. Adopt this structure can compress the second spring when cutting the branch, when the second spring compressed to a certain extent, first cutting edge opened the winding motor with the light touch switch contact is automatic, and the winding motor coils the stay cord in order to provide the shearing force, consequently can provide the shearing force when cutting thick branch voluntarily.
In the above technical solution, preferably, a position where the first cutting edge abuts against the limiting protrusion is located at one end of the first rotating arm, the end being far away from the hinge. According to the lever principle, the more the branch is close to the hinged part, the more labor is saved for cutting the branch, so that the branch can be in the position close to the hinged part to save labor in general use, and the first cutting edge can normally rotate when the branch is placed between the first cutting edge and the second cutting edge close to one end of the hinged part in the arrangement mode.
In the above technical scheme, preferably, an adjusting nut is arranged on the limiting protrusion in a penetrating manner, and the tact switch is arranged at the end part of the adjusting nut. Adopt this structure to stretch into spacing bellied length through adjusting nut and make the position of first cutting sword touching light touch switch can adjust to adjust the power that starts the winding motor, make it be applicable to different users, can suitably outwards adjust adjusting bolt to the user that wrist power is said to be big, can suitably inwards adjust adjusting bolt to the user that wrist power is said to be little.
In the above technical solution, it is preferable that an insulating coating is provided between the first rotating arm and the first cutting edge. By adopting the structure, the first cutting edge and the first rotating arm are insulated, one hand of a person touches the conductive contact piece during pruning, and the other hand of the person does not enable the coil to form a passage when touching other positions except the first cutting edge, so that unnecessary limiting of the first rotating arm and the second rotating arm is prevented.
Compared with the prior art, the invention has the following beneficial effects: when the pruning shears are used, one hand of a person is held on the insulating rubber sleeve to be in contact with the conductive contact piece, the other parts of the body of the person are in contact with the first cutting edge, the insulating rubber sleeve is connected with the coil to form a passage, the coil can attract the sliding iron core to move to enable the tooth-shaped protrusion to slide into the gear ring position, the position between the tooth-shaped protrusion and the gear ring is limited, so that the first rotating arm and the second rotating arm cannot continuously rotate, and the part of the body of the person is prevented from being cut during use.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a hinged member in an embodiment of the present invention.
Fig. 3 is an exploded view of a hinge assembly in an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 3, an anti-shearing energy-saving agricultural pruning shear comprises a first rotating arm 2 and a second rotating arm 3 hinged to each other through a hinge 1, wherein a first cutting edge 4 and a second cutting edge 5 matched with each other are respectively arranged on one side of the first rotating arm 2 and one side of the second rotating arm 3 located at the hinged position, the other side of the first rotating arm 2 and the other side of the second rotating arm 3 located at the hinged position are both handheld portions 6, a first spring 7 for bouncing the first rotating arm 2 and the second rotating arm 3 is arranged between the handheld portions 6, the hinge 1 comprises a nut 8 and a threaded sleeve 9, a piston cavity 10 is formed in the rotating middle of the nut 8 and the threaded sleeve 9, guide through holes 11 are arranged on two side surfaces of the piston cavity 10, a coil 12 is fixedly arranged in the piston cavity 10, a piston 13 is slidably arranged in the piston cavity 10, a sliding iron core 14 matched with the coil 12 is arranged on the piston 13, a return spring 15 is arranged between the piston 13 and the end face of the piston cavity 10, a guide rod 16 penetrating through the guide through hole 11 is arranged on the piston 13, a tooth-shaped bulge 17 is arranged at the end part of the guide rod 16, the nut 8 is fixedly connected with the first rotating arm 2, the second rotating arm 3 is rotatably sleeved on the threaded sleeve 9, a gear ring 18 is fixed in a hole, matched with the threaded sleeve 9, on the second rotating arm 3, and the guide rod 16 slides in the guide through hole 11 to enable the tooth-shaped bulge 17 to be positioned or separated from the gear ring 18; the first rotating arm 2 is provided with a battery 19, the handheld part 6 is provided with an insulating rubber sleeve 20, a conductive contact piece 21 is arranged on the outer side of the insulating rubber sleeve 20, the first cutting edge 4 is connected with the positive electrode or the negative electrode of the battery 19 after being connected with the coil 12, and the conductive contact piece 21 is connected with the other electrode of the battery 19. When the pruning shears are used, one hand of a person is held on the insulating rubber sleeve to be in contact with the conductive contact piece, the other parts of the body of the person are in contact with the first cutting edge, the insulating rubber sleeve is connected with the coil to form a passage, the coil can attract the sliding iron core to move to enable the tooth-shaped protrusion to slide into the gear ring position, the position between the tooth-shaped protrusion and the gear ring is limited, so that the first rotating arm and the second rotating arm cannot continuously rotate, and the part of the body of the person is prevented from being cut during use.
The power generation assembly 22 is arranged on the first rotating arm 2, a first gear 23 is connected to a rotating shaft of the power generation assembly 22 through a one-way bearing, an arc-shaped rack 24 is arranged on the second rotating arm 3, the arc-shaped rack 24 is in transmission with the first gear 23 through a double-layer gear 25, and the battery 19 is connected with the power generation assembly 22. This kind of pruning scissors does not need the battery of large capacity and change the battery owing to can continuously charge the battery when using for the whole weight of pruning scissors reduces.
The first rotating arm 2 is provided with a winding motor 26, the winding motor 26 is provided with a winding wheel 27, a pull rope 28 is connected between the winding wheel 27 and the second rotating arm 3, the first cutting edge 4 is rotatably connected to the first rotating arm 2, the first rotating arm 2 is provided with a limiting protrusion 29, a second spring 30 is arranged between the limiting protrusion 29 and the first cutting edge 4, one side of the rotation center of the first cutting edge 4 abuts against the other side of the second spring 30 and abuts against the limiting protrusion 29, and the limiting protrusion 29 is provided with a light touch switch 31 for controlling the winding motor 26. Adopt this structure can compress the second spring when cutting the branch, when the second spring compressed to a certain extent, first cutting edge opened the winding motor with the light touch switch contact is automatic, and the winding motor coils the stay cord in order to provide the shearing force, consequently can provide the shearing force when cutting thick branch voluntarily.
The position where the first cutting edge 4 abuts against the stop protrusion 29 is located at one end of the first rotating arm 2 away from the hinge 1. According to the lever principle, the more the branch is close to the hinged part, the more labor is saved for cutting the branch, so that the branch can be in the position close to the hinged part to save labor in general use, and the first cutting edge can normally rotate when the branch is placed between the first cutting edge and the second cutting edge close to one end of the hinged part in the arrangement mode.
An adjusting nut 32 penetrates through the limiting protrusion 29, and the tact switch 31 is arranged at the end of the adjusting nut 32. Adopt this structure to stretch into spacing bellied length through adjusting nut and make the position of first cutting sword touching light touch switch can adjust to adjust the power that starts the winding motor, make it be applicable to different users, can suitably outwards adjust adjusting bolt to the user that wrist power is said to be big, can suitably inwards adjust adjusting bolt to the user that wrist power is said to be little.
An insulating coating is provided between the first turning arm 2 and the first cutting edge 4. By adopting the structure, the first cutting edge and the first rotating arm are insulated, one hand of a person touches the conductive contact piece during pruning, and the other hand of the person does not enable the coil to form a passage when touching other positions except the first cutting edge, so that unnecessary limiting of the first rotating arm and the second rotating arm is prevented.
Claims (3)
1. The utility model provides an energy-saving agricultural pruning scissors of anti-shear hand, includes through articulated elements (1) first rotor arm (2) and second rotor arm (3) of mutual articulated, first rotor arm (2) with one side that lies in articulated position on second rotor arm (3) is provided with first cutting edge (4) and second cutting edge (5) of mutually supporting respectively, first rotor arm (2) with second rotor arm (3) lie in articulated position's opposite side and are handheld portion (6), be provided with between handheld portion (6) and bounce open first rotor arm (2) with first spring (7) of second rotor arm (3), its characterized in that: articulated elements (1) include nut (8) and swivel nut (9), nut (8) and swivel nut (9) close the middle part soon and form piston chamber (10) just piston chamber (10) both sides face is provided with guiding hole (11), piston chamber (10) internal fixation is provided with coil (12), it is provided with piston (13) to slide in piston chamber (10), be provided with on piston (13) with coil (12) complex slip iron core (14), piston (13) with be provided with reset spring (15) between piston chamber (10) terminal surface, be provided with on piston (13) and wear out guiding rod (16) of guiding hole (11), guiding rod (16) tip is provided with profile of tooth arch (17), nut (8) with first rotor arm (2) fixed connection, second rotor arm (3) rotate the cover and are located on swivel nut (9), a gear ring (18) is fixed in a hole on the second rotating arm (3) matched with the screw sleeve (9), and the guide rod (16) slides in the guide through hole (11) to enable the tooth-shaped protrusion (17) to be positioned or separated from the gear ring (18); a battery (19) is arranged on the first rotating arm (2), an insulating rubber sleeve (20) is arranged on the handheld part (6), a conductive contact piece (21) is arranged on the outer side of the insulating rubber sleeve (20), the first cutting edge (4) is connected with the coil (12) and then is connected with the positive pole or the negative pole of the battery (19), the conductive contact piece (21) is connected with the other electrode of the battery (19), a power generation assembly (22) is arranged on the first rotating arm (2), a first gear (23) is connected onto a rotating shaft of the power generation assembly (22) through a one-way bearing, an arc-shaped rack (24) is arranged on the second rotating arm (3), the arc-shaped rack (24) is in transmission with the first gear (23) through a double-layer gear (25), the battery (19) is connected with the power generation assembly (22), and a winding motor (26) is arranged on the first rotating arm (2), be provided with winding wheel (27) on winding motor (26), winding wheel (27) with be connected with stay cord (28) between second rotor arm (3), first cutting edge (4) rotate connect in on first rotor arm (2), be provided with spacing arch (29) on first rotor arm (2), spacing arch (29) with be provided with second spring (30) between first cutting edge (4), one side of first cutting edge (4) center of rotation supports and support by second spring (30) opposite side spacing arch (29), be provided with the control on spacing arch (29) light touch switch (31) of winding motor (26), wear to be equipped with adjusting nut (32) on spacing arch (29), light touch switch (31) set up in the tip of adjusting nut (32).
2. The anti-shearing energy-saving agricultural pruning shear of claim 1, wherein: the position where the first cutting edge (4) abuts against the limiting protrusion (29) is located at one end, far away from the hinged part (1), of the first rotating arm (2).
3. The anti-shearing energy-saving agricultural pruning shear of claim 1, wherein: an insulating coating is arranged between the first rotating arm (2) and the first cutting edge (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811358054.XA CN109197212B (en) | 2018-11-15 | 2018-11-15 | Hand-shearing-preventing energy-saving agricultural pruning shears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811358054.XA CN109197212B (en) | 2018-11-15 | 2018-11-15 | Hand-shearing-preventing energy-saving agricultural pruning shears |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109197212A CN109197212A (en) | 2019-01-15 |
| CN109197212B true CN109197212B (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811358054.XA Active CN109197212B (en) | 2018-11-15 | 2018-11-15 | Hand-shearing-preventing energy-saving agricultural pruning shears |
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| Country | Link |
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| CN (1) | CN109197212B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202292807U (en) * | 2011-10-13 | 2012-07-04 | 童宇晴 | Safety scissors for children |
| DE102012023295A1 (en) * | 2012-11-28 | 2014-05-28 | Mtd Products Inc. | secateurs |
| CN204540043U (en) * | 2015-01-29 | 2015-08-12 | 河南林业职业学院 | A kind of night special shrub and hedge trimmer |
| DE102016211975A1 (en) * | 2016-06-30 | 2018-01-04 | Robert Bosch Gmbh | cutter |
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2018
- 2018-11-15 CN CN201811358054.XA patent/CN109197212B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109197212A (en) | 2019-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210331 Address after: 321300 No.29 Huacheng West Road, Chengxi New District, Yongkang City, Jinhua City, Zhejiang Province Applicant after: ZHEJIANG DONGLI ELECTRIC APPLIANCE Co.,Ltd. Address before: 310024 2-3-202, Jiulong Mountain, jiazhaoye, Zhuantang Town, Xihu District, Hangzhou City, Zhejiang Province Applicant before: Huang Yekun |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Anti shearing hand energy-saving agricultural pruning scissors Effective date of registration: 20210914 Granted publication date: 20210420 Pledgee: Agricultural Bank of China Limited Yongkang sub branch Pledgor: ZHEJIANG DONGLI ELECTRIC APPLIANCE Co.,Ltd. Registration number: Y2021330001351 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |