CN112136537A - Hedge shears with double moving blades - Google Patents
Hedge shears with double moving blades Download PDFInfo
- Publication number
- CN112136537A CN112136537A CN202011152126.2A CN202011152126A CN112136537A CN 112136537 A CN112136537 A CN 112136537A CN 202011152126 A CN202011152126 A CN 202011152126A CN 112136537 A CN112136537 A CN 112136537A
- Authority
- CN
- China
- Prior art keywords
- eccentric
- eccentric wheel
- blade
- gear
- included angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- A01G3/04—Apparatus for trimming hedges, e.g. hedge shears
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
The invention discloses a hedge shears with double moving blades, which comprises a shell, a driving piece, a driving pinion, an eccentric bull gear, an upper blade and a lower blade, wherein the driving piece is arranged on the shell; the eccentric big gear comprises a gear part, a first eccentric wheel and a second eccentric wheel which are integrally arranged, the first eccentric wheel and the second eccentric wheel are respectively eccentrically arranged at two sides of the gear part, one end of an upper blade, which is opposite to the eccentric direction of the first eccentric wheel and the second eccentric wheel, is sleeved on the first eccentric wheel, and one end of a lower blade is sleeved on the second eccentric wheel; the eccentric large gear is rotationally connected with the shell, and the upper blade and the lower blade are respectively connected with the shell in a sliding manner; the driving pinion is connected with an output shaft of the driving piece and meshed with the eccentric bull gear. The hedge shears with the double moving blades provided by the invention have the advantages that the transmission mechanism is simple, the manufacturing and processing are simple, the installation is convenient and fast, the cost can be reduced, and the weight and the volume of the hedge shears can also be reduced.
Description
Technical Field
The invention relates to the field of hedge shears, in particular to hedge shears with double moving blades.
Background
Hedge shears, also known as big flat shears, hedge shears, tree shears, flat shears, branch shears, hedge shears, wintergreen shears etc. garden horticulture is cut and is used in the pruning work of gardens hedge shears, hedge shears etc. of large tracts of land, hedge shears etc. present hedge trimmer divide single-edged hedge trimmer and double-edged hedge trimmer, the gear of present double-edged hedge trimmer rotates pair structure very complicated for double-edged hedge trimmer manufacturing cost is high, and quality and volume are too big, are unfavorable for handing when using. Therefore, it is desirable to design a hedge shears with double movable blades, which has simple transmission mechanism, simple manufacturing and processing, convenient installation, reduced cost and reduced weight and volume of the hedge shears.
Chinese patent application publication No. CN204598749U, published as 09/02/2015, entitled "hand-held hedge shears with shock-absorbing structure", discloses a hand-held hedge shears with shock-absorbing structure, comprising a base, an engine fixed above the base, a scissor assembly located at the front end of the base, and a handle located at the rear end of the base; the handle is installed on the base through a handle fixing seat, a through hole is formed in the handle fixing seat, a bolt hole is formed in the position, corresponding to the through hole, of the base, and rubber shock absorption penetrates through the through hole, enters the bolt hole and is fastened through a bolt. The above problems still exist in this patent.
Disclosure of Invention
The invention provides a pair of moving blade hedge shears, aiming at overcoming the problems that in the prior art, a gear rotating pair of a double-blade hedge shears has a complex structure, so that the double-blade hedge shears is high in manufacturing cost, too large in mass and size and not beneficial to hand holding during use, and the double-moving blade hedge shears are simple in transmission mechanism, simple to manufacture and process, convenient and fast to install, capable of reducing cost and also capable of reducing weight and size of the hedge shears.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hedge shears with double moving blades comprises a machine shell, a driving piece, a driving pinion, an eccentric bull gear, an upper blade and a lower blade; the eccentric big gear comprises a gear part, a first eccentric wheel and a second eccentric wheel which are integrally arranged, the first eccentric wheel and the second eccentric wheel are respectively eccentrically arranged at two sides of the gear part, one end of an upper blade, which is opposite to the eccentric direction of the first eccentric wheel and the second eccentric wheel, is sleeved on the first eccentric wheel, and one end of a lower blade is sleeved on the second eccentric wheel; the eccentric large gear is rotationally connected with the shell, and the upper blade and the lower blade are respectively connected with the shell in a sliding manner; the driving pinion is connected with an output shaft of the driving piece and meshed with the eccentric bull gear.
Among the above-mentioned technical scheme, eccentric gear wheel structure as an organic whole, it is simple to make processing, and the installation is convenient, can reduce cost, and the structural strength of eccentric gear wheel can be guaranteed to integrative structure. According to the technical scheme, the cutting power transmission of the hedge shears can be realized only through primary transmission of the driving pinion and the eccentric bull gear, the transmission mechanism is simple, and the weight and the volume of the hedge shears are more conveniently reduced. And the mode that the upper blade and the lower blade move simultaneously is adopted for cutting, so that the cutting effect can be improved.
Preferably, one end of the upper blade is provided with a first long groove, the first long groove is sleeved on the first eccentric wheel, one end of the lower blade is provided with a second long groove, and the second long groove is sleeved on the second eccentric wheel; the included angle between the extending direction of the first long groove and the sliding direction of the upper blade is a first included angle, and the degree of the first included angle is 45-90 degrees; the included angle between the extending direction of the second long groove and the sliding direction of the lower blade is a second included angle, and the degree of the second included angle is 45-90 degrees. The structure is convenient for converting the rotation of the eccentric bull gear into the back-and-forth translation motion of the upper blade and the lower blade.
Preferably, the degree of the first included angle is 90 degrees; the degree of the second included angle is 90 degrees.
Preferably, the first eccentric wheel is provided with a first bearing and a first bush, the first bearing is sleeved on the first eccentric wheel, the first bush is arranged on the first bearing, and the first long groove is sleeved on the first bush; the second eccentric wheel is provided with a second bearing and a second bushing, the second bearing is sleeved on the second eccentric wheel, the second bushing is arranged on the second bearing, and the second long groove is sleeved on the second bushing. The bearing and the bush can reduce the friction generated by the eccentric large gear driving the upper blade and the lower blade, reduce the abrasion and reduce the energy consumption.
Preferably, the driving member is a motor.
Preferably, the drive member is an engine.
Preferably, the casing comprises a reduction box body, the driving pinion and the eccentric bull gear are arranged in the reduction box body, one end of the upper blade is arranged in the reduction box body, and one end of the lower blade is arranged in the reduction box body. The structure is convenient for fix the speed reduction structure, and is convenient for lubricate.
Preferably, the casing comprises an upper pressing plate and a lower pressing plate, and the upper blade and the lower blade are arranged between the upper pressing plate and the lower pressing plate. The structure facilitates to keep the stability of the upper blade and the lower blade.
Preferably, the gear portion, the first eccentric wheel and the second eccentric wheel are integrally cast. The structure is convenient for increase structural strength, reduce cost.
Preferably, the upper blade comprises a first connecting part and a first cutting part, and the first connecting part is detachably connected with the first cutting part; the lower blade comprises a second connecting part and a second cutting part, and the second connecting part is detachably connected with the second cutting part. The structure is convenient for replacing the blade.
The invention has the beneficial effects that: (1) the hedge shears adopt a mode that the upper blade and the lower blade move simultaneously to cut, so that the cutting effect can be improved; (2) the hedge shears are simple in transmission mechanism, and the weight and the volume of the hedge shears are more convenient to reduce; (3) the eccentric big gear is of an integrated structure, so that the manufacturing and processing are simple, the installation is convenient, the cost can be reduced, and the integrated structure can ensure the structural strength of the eccentric big gear; (4) the bearing and the bush can reduce the friction generated by the eccentric big gear driving the upper blade and the lower blade, reduce the abrasion and reduce the energy consumption.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the invention of FIG. 1;
FIG. 3 is a schematic structural view of embodiment 3;
FIG. 4 is a schematic structural view of example 4.
In the figure: the device comprises a machine shell 1, a reduction box body 1.1, an upper pressure plate 1.2, a lower pressure plate 1.3, a driving piece 2, a driving pinion 3, an eccentric bull gear 4, a gear part 4.1, a first eccentric wheel 4.2, a second eccentric wheel 4.3, a first through hole 4.4, a second through hole 4.5, an upper blade 5, a lower blade 6, a second connecting part 6.1, a second long groove 6.2, a no-load hole 6.3, a limiting bulge 6.4, a first bearing 7, a first bush 8, a second bearing 9, a second bush 10, a first connecting rod 11, a second connecting rod 12, a front handle 13, a locking mechanism 14, a locking block 14.1 and a rotating piece 14.2. Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1:
as shown in fig. 1 and 2, a hedge shears with double moving blades comprises a housing 1, a driving member 2, a driving pinion 3, an eccentric bull gear 4, an upper blade 5 and a lower blade 6; the machine shell 1 comprises a reduction box body 1.1, an upper pressing plate 1.2 and a lower pressing plate 1.3, a driving pinion 3 and an eccentric bull gear 4 are arranged in the reduction box body 1.1, one end of an upper blade 5 is arranged in the reduction box body 1.1, and one end of a lower blade 6 is arranged in the reduction box body 1.1. An upper blade 5 and a lower blade 6 are arranged between the upper platen 1.2 and the lower platen 1.3. The eccentric big gear 4 comprises a gear part 4.1, a first eccentric wheel 4.2 and a second eccentric wheel 4.3, and the gear part 4.1, the first eccentric wheel 4.2 and the second eccentric wheel 4.3 are integrally cast; the first eccentric wheel 4.2 and the second eccentric wheel 4.3 are respectively eccentrically provided with two sides of a gear part 4.1, one end of an upper blade 5, opposite to the eccentric direction, of the first eccentric wheel 4.2 and the second eccentric wheel 4.3 is sleeved on the first eccentric wheel 4.2, and one end of a lower blade 6 is sleeved on the second eccentric wheel 4.3; the eccentric big gear 4 is rotatably connected with the machine shell 1 through a bearing, and the upper blade 5 and the lower blade 6 are respectively connected with the machine shell 1 in a sliding way; the driving pinion 3 is connected with the output shaft of the driving piece 2, and the driving pinion 3 is meshed with the eccentric large gear 4. The casing 1 is provided with a front handle 13.
Among the above-mentioned technical scheme, eccentric gear wheel 4 is structure as an organic whole, and it is simple to make processing, and it is convenient to install, can reduce cost, and the structural strength of eccentric gear wheel 4 can be guaranteed to integrative structure. According to the technical scheme, the cutting power transmission of the hedge shears can be realized only through the primary transmission of the driving pinion 3 and the eccentric bull gear 4, the transmission mechanism is simple, and the weight and the volume of the hedge shears are more conveniently reduced. And the mode that the upper blade 5 and the lower blade 6 move simultaneously is adopted for cutting, so that the cutting effect can be improved.
Example 2:
as shown in fig. 1 and fig. 2, based on embodiment 1, the driving member 2 is a motor, one end of the upper blade 5 is provided with a first long groove, and one end of the lower blade 6 is provided with a second long groove; the included angle between the extending direction of the first long groove and the sliding direction of the upper blade 5 is a first included angle, and the degree of the first included angle is 90 degrees; the extending direction of the second long groove and the sliding direction of the lower blade 6 form a second included angle, and the degree of the second included angle is 90 degrees. The structure is convenient for converting the rotation of the eccentric large gear 4 into the back-and-forth translational motion of the upper blade 5 and the lower blade 6. A first bearing 7 and a first bush 8 are arranged on the first eccentric wheel 4.2, the first bearing 7 is sleeved on the first eccentric wheel 4.2, the first bush 8 is arranged on the first bearing 7, and a first long groove is sleeved on the first bush 8; the second eccentric wheel 4.3 is provided with a second bearing 9 and a second bush 10, the second bearing 9 is sleeved on the second eccentric wheel 4.3, the second bush 10 is arranged on the second bearing 9, and the second long groove is sleeved on the second bush 10. The bearing and the bush can reduce the friction generated when the eccentric big gear 4 drives the upper blade 5 and the lower blade 6, reduce the abrasion and reduce the energy consumption.
Example 3:
as shown in fig. 3, on the basis of embodiment 1, one end of the upper blade 5 is provided with a first connecting rod 11, one end of the first connecting rod 11 is hinged to the upper blade 5, and the other end of the first connecting rod 11 is hinged to the first eccentric wheel 4.2; one end of the lower blade 6 is provided with a second connecting rod 12, one end of the second connecting rod 12 is hinged with the lower blade 6, and the other end of the second connecting rod 12 is hinged with the second eccentric wheel 4.3. The driving piece 2 is an engine, and the upper blade 5 comprises a first connecting part and a first cutting part which are detachably connected; the lower blade 6 includes a second connecting portion and a second cutting portion, and the second connecting portion and the second cutting portion are detachably connected. The structure is convenient for converting the rotation of the eccentric large gear 4 into the back-and-forth translational motion of the upper blade 5 and the lower blade 6.
Example 4:
as shown in fig. 4, on the basis of embodiment 3, the second connecting portion 6.1 is provided with an idle hole 6.3, the idle hole 6.3 is communicated with the second long groove 6.2, the second connecting portion 6.1 and the second cutting portion are slidably connected, the sliding directions of the second connecting portion 6.1 and the second cutting portion are perpendicular to the moving direction along the lower blade 6, the locking mechanism 14 further includes a locking mechanism 14, the locking mechanism 14 includes a locking block 14.1 and a rotating member 14.2, the locking block 14.1 is rotatably connected with the rotating member 14.2, when the locking block 14.1 moves upward, the second connecting portion 6.1 can be driven by a limiting block to move upward, when the limiting protrusion 6.4 descends, the limiting protrusion 6.4 is provided on the second connecting portion 6.1, and the casing is provided with a limiting groove adapted to the limiting protrusion 6.4.
When needing to switch the shearing mode, can upwards mention second connecting portion 6.1 through locking mechanism 14, spacing protruding 6.4 card is gone into spacing recess, and second connecting portion 6.1 can not follow the motion of cutting direction, will rotate 14.2 this moment and rotate, make it with can the joint, avoid latch segment 14.1 whereabouts. In this case, the second eccentric 4.3 is arranged in the idle opening 6.3, the diameter of the idle opening 6.3 being greater than the maximum outer contour of the second eccentric 4.3 during rotation. The second eccentric wheel 4.3 is unloaded, can not drive the motion of second connecting portion 6.1, and at this moment, only go up the blade motion, realize the single-edged cutting.
Claims (8)
1. A hedge shears with double moving blades is characterized by comprising a machine shell, a driving piece, a driving pinion, an eccentric bull gear, an upper blade and a lower blade; the eccentric large gear comprises a gear part, a first eccentric wheel and a second eccentric wheel which are integrally arranged, the first eccentric wheel and the second eccentric wheel are respectively eccentrically arranged at two sides of the gear part, and the eccentric directions of the first eccentric wheel and the second eccentric wheel are opposite; one end of the upper blade is sleeved on the first eccentric wheel, and one end of the lower blade is sleeved on the second eccentric wheel; the eccentric large gear is rotationally connected with the shell, and the upper blade and the lower blade are respectively connected with the shell in a sliding manner; the driving pinion is connected with an output shaft of the driving piece and meshed with the eccentric bull gear.
2. A hedge trimmer with double moving blades according to claim 1, wherein the upper blade has a first elongated slot at one end, the first elongated slot being fitted over the first eccentric, and the lower blade has a second elongated slot at one end, the second elongated slot being fitted over the second eccentric; the included angle between the extending direction of the first long groove and the sliding direction of the upper blade is a first included angle, and the degree of the first included angle is 45-90 degrees; the extending direction of the second long groove and the sliding direction of the lower blade form a second included angle, and the degree of the second included angle is 45-90 degrees.
3. A twin blade hedge trimmer according to claim 2 wherein the first included angle is 90 °; the degree of the second included angle is 90 degrees.
4. A hedge trimmer with double moving blades according to claim 2, wherein the first eccentric is provided with a first bearing and a first bushing, the first bearing is fitted over the first eccentric, the first bushing is provided over the first bearing, and the first elongated slot is fitted over the first bushing; the second eccentric wheel is provided with a second bearing and a second bushing, the second bearing is sleeved on the second eccentric wheel, the second bushing is arranged on the second bearing, and the second long groove is sleeved on the second bushing.
5. A twin blade hedge trimmer according to claim 1 or 2 or 3 or 4 in which the drive member is an electric motor.
6. A twin blade hedge trimmer according to claim 1 or 2 or 3 or 4 in which the drive member is an engine.
7. A hedge shears according to claim 1, 2, 3 or 4, wherein the housing includes a reduction box, the pinion and the gearwheel are disposed in the reduction box, one end of the upper blade is disposed in the reduction box, and one end of the lower blade is disposed in the reduction box.
8. A twin blade hedge shears according to claim 1 or 2 or 3 or 4 in which the gear portion, the first eccentric and the second eccentric are integrally cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011152126.2A CN112136537A (en) | 2020-10-23 | 2020-10-23 | Hedge shears with double moving blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011152126.2A CN112136537A (en) | 2020-10-23 | 2020-10-23 | Hedge shears with double moving blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112136537A true CN112136537A (en) | 2020-12-29 |
Family
ID=73954956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011152126.2A Pending CN112136537A (en) | 2020-10-23 | 2020-10-23 | Hedge shears with double moving blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112136537A (en) |
-
2020
- 2020-10-23 CN CN202011152126.2A patent/CN112136537A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201012413Y (en) | Electric saw | |
| CN111512813A (en) | Novel double-moving-blade electric scissors | |
| CN201182107Y (en) | Backpack shoot-cutting and harvesting machine | |
| CN102630506A (en) | Direct current dual-edge trimmer | |
| CN213638971U (en) | Hedge shears with double moving blades | |
| CN213638976U (en) | Hedge shears transmission mechanism | |
| CN112136537A (en) | Hedge shears with double moving blades | |
| CN211607479U (en) | Electric pruning shears | |
| CN112492998A (en) | Shearing tool | |
| CN112136538A (en) | Hedge shears transmission mechanism | |
| CN211090787U (en) | Multifunctional garden cleaning tool | |
| CN112106542A (en) | Electric pruning shears | |
| CN200991791Y (en) | Reciprocating electric hand saw | |
| CN212218560U (en) | Transmission structure of wool scissors | |
| CN213829163U (en) | Olecranon scissors | |
| CN210053307U (en) | Driving mechanism for electric gardening tool | |
| CN201248287Y (en) | High-hedge pruning machine | |
| CN212232258U (en) | Handheld topping machine | |
| CN212324810U (en) | Novel double-moving-blade electric scissors | |
| CN208317544U (en) | A kind of gardens pruning machine | |
| CN219593123U (en) | Multifunctional saw | |
| CN202551748U (en) | Direct current (DC) dual-blade trimmer | |
| CN214015125U (en) | Shearing tool | |
| CN217986008U (en) | Portable grass-like mowing electric scissors capable of regulating stubble height | |
| CN210757855U (en) | Electric scissors |
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 |