CN103141317B - Blade quick-changing mechanism for gardening cutting tool - Google Patents
Blade quick-changing mechanism for gardening cutting tool Download PDFInfo
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- CN103141317B CN103141317B CN201310103204.3A CN201310103204A CN103141317B CN 103141317 B CN103141317 B CN 103141317B CN 201310103204 A CN201310103204 A CN 201310103204A CN 103141317 B CN103141317 B CN 103141317B
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- cutting tool
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Abstract
The invention discloses a blade quick-changing mechanism for a gardening cutting tool. The gardening cutting tool comprises a power switch, an eccentric wheel and a blade assembly, wherein the blade assembly comprises a moving blade and a fixed blade. The blade quick-changing mechanism comprises an elastic element; the moving blade is provided with a first hole; and the elastic element can be matched with the first hole. When the blade assembly is arranged on a machine, the elastic element and the eccentric wheel are optionally positioned in a matched state or a non-matched state; and under the sate that the elastic element is not matched with the eccentric wheel, the elastic element generates elastic deformation, and when a motor starts to drive the eccentric wheel to rotate, the elastic element can restore the elastic deformation and is matched with the eccentric wheel. The blade quick-changing mechanism can simplify an operating procedure of changing the blades, and is simple and reliable in structure.
Description
Technical field
The present invention relates to a kind of gardening cutting tool, particularly relate to a kind of blade quick-changing mechanism of gardening cutting tool.
Background technology
Grass mower in gardening cutting tool or pruning machine are generally provided with cuts careless blade and beta pruning blade, and these two kinds of blades can carry out changing and installing according to the actual demand of user.In order to simplify the operation sequence of more allowing blade replacement, grass mower or pruning machine generally arrange blade quick-changing mechanism.In the prior art, this blade quick-changing mechanism generally adopts and arranges elastic construction in the eccentric wheel part of machine, or realizes quick change by increasing guiding connector.The deficiency of such blade quick-changing mechanism is mainly reflected in: materials and parts are more, complex process and production cost is high.
Summary of the invention
The object of the invention is to for above-mentioned defect of the prior art, provide a kind of blade quick-changing mechanism of gardening cutting tool, it can simplify the operation sequence of more allowing blade replacement, and simple and reliable for structure.
For achieving the above object, present invention employs following main technical schemes: a kind of blade quick-changing mechanism of gardening cutting tool, described gardening cutting tool comprises motor, eccentric wheel and blade assembly, described blade assembly comprises knife section and fixed blade, it is characterized in that: described blade quick-changing mechanism comprises flexible member, described knife section is provided with the first perforate, described flexible member can be matched with described first perforate, when described blade assembly is mounted on machine, described flexible member and described eccentric wheel are optionally in mated condition or non-mated condition, under described non-mated condition, described flexible member produces elastic deformation and when described electric motor starting band movable eccentric wheel rotates, described flexible member can be out of shape and be in mated condition with described eccentric wheel by elasticity recovery.
In addition, the present invention also proposes following attached technical scheme:
Described flexible member comprises main part and support portion.
Described main part to be mounted in described first perforate and to have second perforate suitable with described first perforate.
Described first perforate and described second perforate are mounting hole.
Described support portion can be supported on described fixed blade.
Described eccentric wheel has eccentric part, and under described non-mated condition, described flexible member is extruded by described eccentric part and produces elastic deformation; And under described mated condition, described second perforate is meshed with described eccentric part.
The direction of described elastic deformation is along described eccentric axis.
Described gardening cutting tool is grass mower or pruning machine.
Compared to prior art, the invention has the advantages that: the blade quick-changing mechanism of gardening cutting tool of the present invention, by arranging the flexible member matched with the perforate of knife section, the blind dress of blade assembly can be realized, simplify the operation sequence of more allowing blade replacement, and simple and reliable for structure.
Accompanying drawing explanation
Fig. 1 is the part sectional arrangement drawing of the gardening cutting tool corresponding to present pre-ferred embodiments.
Fig. 2 is the three-dimensional exploded view of Fig. 1.
Fig. 3 is the stereogram of eccentric wheel when another location in Fig. 2.
Fig. 4 is the three-dimensional exploded view of lopping shears chip module and blade quick-changing mechanism in Fig. 2.
Fig. 5 is the assembled view of Fig. 4.
Fig. 6 is the cutaway view of A-A line in Fig. 5.
Fig. 7 is the three-dimensional exploded view cutting careless blade assembly and blade quick-changing mechanism in Fig. 2.
Fig. 8 is the assembled view of Fig. 7.
Fig. 9 is the cutaway view of B-B line in Fig. 8.
Embodiment
Below in conjunction with preferred embodiment and accompanying drawing thereof, technical solution of the present invention is further non-limitingly described in detail.
Figure 1 shows that the sectional arrangement drawing of the chain-drive section 1 corresponding to the gardening cutting tool of present pre-ferred embodiments, wherein this gardening cutting tool is grass mower or pruning machine.With further reference to Fig. 2 and Fig. 3, in the inside of the casing 10,12 of this chain-drive section 1, roughly by direction from top to bottom, the reduction box 14 being provided with the circuit board module 11 being provided with power switch 21, the motor 13 be electrically connected with circuit board module 11 phase and being positioned at below motor 13.The eccentric wheel 16 being provided with driving wheel 15 in the inside of reduction box 14 and being meshed with driving wheel 15.This driving wheel 15 is meshed with the teeth portion 23 on the output shaft of motor 13.Also be provided with two rotating shafts 24,25 in the inside of reduction box 14, wherein, driving wheel 15 is set in rotating shaft 24, and eccentric wheel 16 is set in rotating shaft 25.Eccentric wheel 16 is provided with eccentric part 26.The bottom of reduction box 14 is also installed with seal cover 17.
Be provided with blade assembly 18 or 19 in the below of seal cover 17, wherein blade assembly 18 is for beta pruning, and blade assembly 19 is for cutting grass, and user can come to select it and change according to the actual requirements.With further reference to Fig. 4 to Fig. 6, the fixed blade 28 that blade assembly 18 comprises knife section 27 and is positioned at below knife section 27, wherein knife section 27 can make bilateral reciprocation, and the first perforate 29 is set, and fixed blade 28 arranges the first through hole 30 and the second through hole 31, this first, second through hole 30,31 is set on above-mentioned two bearing pins 24,25 respectively, is then supported by fixed blade 28 by the support member 32 be arranged on the bottom 20 of chain-drive section 1.And blade assembly 19 is provided with knife section 36 and fixed blade 38 equally, wherein knife section 36 can make front-rear reciprocation movement.Knife section and fixed blade 36,38 are respectively equipped with the first perforate 33 and first, second through hole 35,37, and those parts are substantially identical with the corresponding component structure of blade assembly 18, and just the first perforate 29 is mutually vertical with the position of 33.
In addition, blade assembly 18 and 19 is equipped with blade quick-changing mechanism, this blade quick-changing mechanism is flexible member C.This flexible member C can be matched with the first perforate 29 (33) of described knife section 27 (36), and comprise main part C1 and support portion C2.Main part C1 to be mounted in described first perforate 29 (33) and to have the second perforate C3 suitable with described first perforate 29 (33), and wherein the first perforate 29 (33) is mounting hole with the second perforate C3.Described support portion C2 can be supported on described fixed blade 28 (38).When described blade assembly 18 or 19 is mounted on machine, described flexible member C produces elastic deformation and is in non-mated condition with described eccentric wheel 16, and namely now flexible member C is extruded by described eccentric part 26 and produces the elastic deformation of the axial D along described eccentric wheel 16; When described power switch 21 startup band movable eccentric wheel 16 rotates, the eccentric part 26 on it can be adjacent to described second perforate C3 and engage, simultaneously described flexible member C elasticity recovery distortion.Like this, eccentric wheel 16 can ingeniously match with the knife section 27 (36) of knife section assembly 18 (19) rapidly, thus drives it reciprocating, achieves the demand of blind dress.So the blade quick-changing mechanism of gardening cutting tool of the present invention, it can simplify the operation sequence of more allowing blade replacement, and simple and reliable for structure.
It is pointed out that above-mentioned preferred embodiment is only and technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. the blade quick-changing mechanism of a gardening cutting tool, described gardening cutting tool comprises motor, eccentric wheel and blade assembly, described blade assembly comprises knife section and fixed blade, it is characterized in that: described blade quick-changing mechanism comprises flexible member, described knife section is provided with the first perforate, described flexible member can be matched with described first perforate, and when described blade assembly is mounted on machine, described flexible member and described eccentric wheel are optionally in mated condition or non-mated condition; Under described non-mated condition, described flexible member produces elastic deformation and when described electric motor starting band movable eccentric wheel rotates, described flexible member can be out of shape and be in mated condition with described eccentric wheel by elasticity recovery.
2. the blade quick-changing mechanism of gardening cutting tool as claimed in claim 1, is characterized in that: described flexible member comprises main part and support portion.
3. the blade quick-changing mechanism of gardening cutting tool as claimed in claim 2, is characterized in that: described main part to be mounted in described first perforate and to have second perforate suitable with described first perforate.
4. the blade quick-changing mechanism of gardening cutting tool as claimed in claim 3, is characterized in that: described first perforate and described second perforate are mounting hole.
5. the blade quick-changing mechanism of gardening cutting tool as claimed in claim 2, is characterized in that: described support portion can be supported on described fixed blade.
6. the blade quick-changing mechanism of gardening cutting tool as claimed in claim 3, it is characterized in that: described eccentric wheel has eccentric part, under described non-mated condition, described flexible member is extruded by described eccentric part and produces elastic deformation; And under described mated condition, described second perforate is meshed with described eccentric part.
7. the blade quick-changing mechanism of gardening cutting tool as described in any one of claim 1 to 6, is characterized in that: the direction of described elastic deformation is along described eccentric axis.
8. the blade quick-changing mechanism of gardening cutting tool as described in any one of claim 1 to 6, is characterized in that: described gardening cutting tool is grass mower or pruning machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103204.3A CN103141317B (en) | 2013-03-28 | 2013-03-28 | Blade quick-changing mechanism for gardening cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103204.3A CN103141317B (en) | 2013-03-28 | 2013-03-28 | Blade quick-changing mechanism for gardening cutting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103141317A CN103141317A (en) | 2013-06-12 |
| CN103141317B true CN103141317B (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310103204.3A Active CN103141317B (en) | 2013-03-28 | 2013-03-28 | Blade quick-changing mechanism for gardening cutting tool |
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| CN (1) | CN103141317B (en) |
Citations (8)
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| CN2622999Y (en) * | 2003-05-13 | 2004-07-07 | 潘和平 | Electric pruning shear |
| US6874303B1 (en) * | 2004-07-12 | 2005-04-05 | Chung Jeng Yang | Grass trimmer drivable by power tool |
| DE202006011395U1 (en) * | 2006-07-21 | 2006-09-21 | Koll & Cie. Gmbh & Co. Kg | Cutter blade for motor-driven tool has bearing system which allows it to be mounted on eccentric shaft, producing oscillating movement, system comprising oval ring fitting into aperture in base of blade and held in place by friction |
| CN201138957Y (en) * | 2007-11-30 | 2008-10-29 | 沈高明 | Brake of pruning machine |
| CN201345836Y (en) * | 2008-12-02 | 2009-11-18 | 南京德朔实业有限公司 | Garden tool |
| CN201398326Y (en) * | 2009-05-12 | 2010-02-10 | 浙江亚特电器有限公司 | Novel hand-held cotton topping machine |
| CN201504417U (en) * | 2009-09-11 | 2010-06-16 | 宁波鑫晟工具有限公司 | Pruning and grass mower blade quick-mounting device |
| CN102480919A (en) * | 2009-08-18 | 2012-05-30 | 罗伯特·博世有限公司 | Power tool having an interchangeable blade assembly and method for interchanging the blade assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101543169B (en) * | 2008-03-26 | 2011-08-03 | 苏州宝时得电动工具有限公司 | Gardening cutter and tool setting method thereof |
| CN203181645U (en) * | 2013-03-28 | 2013-09-11 | 天佑电器（苏州）有限公司 | Quick blade replacing mechanism of gardening cutting tool |
-
2013
- 2013-03-28 CN CN201310103204.3A patent/CN103141317B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2622999Y (en) * | 2003-05-13 | 2004-07-07 | 潘和平 | Electric pruning shear |
| US6874303B1 (en) * | 2004-07-12 | 2005-04-05 | Chung Jeng Yang | Grass trimmer drivable by power tool |
| DE202006011395U1 (en) * | 2006-07-21 | 2006-09-21 | Koll & Cie. Gmbh & Co. Kg | Cutter blade for motor-driven tool has bearing system which allows it to be mounted on eccentric shaft, producing oscillating movement, system comprising oval ring fitting into aperture in base of blade and held in place by friction |
| CN201138957Y (en) * | 2007-11-30 | 2008-10-29 | 沈高明 | Brake of pruning machine |
| CN201345836Y (en) * | 2008-12-02 | 2009-11-18 | 南京德朔实业有限公司 | Garden tool |
| CN201398326Y (en) * | 2009-05-12 | 2010-02-10 | 浙江亚特电器有限公司 | Novel hand-held cotton topping machine |
| CN102480919A (en) * | 2009-08-18 | 2012-05-30 | 罗伯特·博世有限公司 | Power tool having an interchangeable blade assembly and method for interchanging the blade assembly |
| CN201504417U (en) * | 2009-09-11 | 2010-06-16 | 宁波鑫晟工具有限公司 | Pruning and grass mower blade quick-mounting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103141317A (en) | 2013-06-12 |
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