CN103141317A - Blade quick-changing mechanism for gardening cutting tool - Google Patents
Blade quick-changing mechanism for gardening cutting tool Download PDFInfo
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- CN103141317A CN103141317A CN2013101032043A CN201310103204A CN103141317A CN 103141317 A CN103141317 A CN 103141317A CN 2013101032043 A CN2013101032043 A CN 2013101032043A CN 201310103204 A CN201310103204 A CN 201310103204A CN 103141317 A CN103141317 A CN 103141317A
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- cutting tool
- changing mechanism
- perforate
- eccentric wheel
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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, relate in particular to a kind of blade quick-changing mechanism of gardening cutting tool.
Background technology
Grass mower in gardening cutting tool or pruning machine operated by rotary motion are cut careless blade and beta pruning blade, and these two kinds of blades can carry out replacement and installation according to user's actual demand.In order to simplify the more operation sequence of allowing blade replacement, grass mower or pruning machine operated by rotary motion blade quick-changing mechanism.In the prior art, this blade quick-changing mechanism generally adopts the eccentric wheel at machine that elastic construction partly is set, 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 high.
Summary of the invention
The object of the invention is to for defects of the prior art, a kind of blade quick-changing mechanism of gardening cutting tool is provided, it can simplify the more operation sequence of allowing blade replacement, and simple and reliable for structure.
for achieving the above object, the present invention has adopted 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 the first perforate, when described blade assembly is mounted on machine, described flexible member and described eccentric wheel optionally are in mated condition or non-mated condition, under described non-mated condition, described flexible member produces strain and when described electric motor starting band movable eccentric wheel rotation, 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 is mounted in described the first perforate and has second perforate suitable with described the first perforate.
Described the first perforate and described the 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 pushed by described eccentric part and produces strain; And under described mated condition, described the second perforate is meshed with described eccentric part.
The direction of described strain is along described eccentric axial.
Described gardening cutting tool is grass mower or pruning machine.
Than prior art, the invention has the advantages that: the blade quick-changing mechanism of gardening cutting tool of the present invention, by the flexible member matched with the perforate of knife section is set, can realize the blind dress of blade assembly, simplified the more operation sequence of allowing blade replacement, and simple and reliable for structure.
Description of drawings
Fig. 1 is the part sectional arrangement drawing corresponding to the gardening cutting tool of preferred embodiment of the present invention.
Fig. 2 is the three-dimensional exploded view of Fig. 1.
Fig. 3 is the stereogram of eccentric wheel when the 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 of 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 done further nonrestrictive detailed description.
Figure 1 shows that wherein this gardening cutting tool is grass mower or pruning machine corresponding to the sectional arrangement drawing of the chain-drive section 1 of the gardening cutting tool of preferred embodiment of the present invention.With further reference to Fig. 2 and Fig. 3, in the casing 10 of this chain-drive section 1,12 inside, roughly by from top to bottom direction, be provided with the circuit board module 11 that is provided with power switch 21, the motor 13 that is electrically connected mutually with circuit board module 11 and the reduction box 14 that is positioned at motor 13 belows.The eccentric wheel 16 that is provided with driving wheel 15 in the inside of reduction box 14 and is meshed with driving wheel 15.Tooth section 23 on the output shaft of this driving wheel 15 and motor 13 is meshed.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 also is installed with seal cover 17.
Be provided with blade assembly 18 or 19 below seal cover 17, wherein blade assembly 18 is used for beta pruning, and blade assembly 19 is used for cutting grass, and the user can come it is selected and changes according to the actual requirements.With further reference to Fig. 4 to Fig. 6, blade assembly 18 comprises knife section 27 and is positioned at the fixed blade 28 of knife section 27 belows, wherein knife section 27 can be done the left and right reciprocating motion, 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 in respectively on above-mentioned two bearing pins 24,25, then by the support member 32 on the bottom 20 that is arranged on chain-drive section 1, fixed blade 28 is supported.And blade assembly 19 is provided with knife section 36 and fixed blade 38 equally, and wherein knife section 36 can be made front-rear reciprocation movement.Be respectively equipped with the first perforate 33 and first, second through hole 35,37 on knife section and fixed blade 36,38, the corresponding component structure of those parts and blade assembly 18 is basic identical, and just the first perforate 29 is mutually vertical with 33 position.
In addition, be equipped with the blade quick-changing mechanism on blade assembly 18 and 19, 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 is mounted in described the first perforate 29 (33) and has the second perforate C3 suitable with described the 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 strain and is in non-mated condition with described eccentric wheel 16, and namely this moment, flexible member C was produced along the strain of the axial D of described eccentric wheel 16 by described eccentric part 26 extruding; When described power switch 21 started 16 rotation of band movable eccentric wheel, the eccentric part 26 on it can be adjacent to engagement with described the second perforate C3, 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, and it is reciprocating thereby drive, and has realized the demand of blind dress.So, the blade quick-changing mechanism of gardening cutting tool of the present invention, it can simplify the more operation sequence of allowing blade replacement, and simple and reliable for structure.
It is pointed out that above-mentioned preferred embodiment only is explanation technical conceive of the present invention and characteristics, its purpose is to allow person skilled in the art scholar can understand content of the present invention and implement according to this, can not limit protection scope of the present invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in 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 the first perforate, and when described blade assembly was mounted on machine, described flexible member and described eccentric wheel optionally were in mated condition or non-mated condition; Under described non-mated condition, described flexible member produces strain and when described electric motor starting band movable eccentric wheel rotation, 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, it 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, it is characterized in that: described main part is mounted in described the first perforate and has second perforate suitable with described the first perforate.
4. the blade quick-changing mechanism of gardening cutting tool as claimed in claim 3, it is characterized in that: described the first perforate and described the second perforate are mounting hole.
5. the blade quick-changing mechanism of gardening cutting tool as claimed in claim 2, it 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, and under described non-mated condition, described flexible member is pushed by described eccentric part and produces strain; And under described mated condition, described the second perforate is meshed with described eccentric part.
7. as the blade quick-changing mechanism of gardening cutting tool as described in claim 1 to 6 any one, it is characterized in that: the direction of described strain along described eccentric axially.
8. as the blade quick-changing mechanism of gardening cutting tool as described in claim 1 to 6 any one, it 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 true CN103141317A (en) | 2013-06-12 |
| CN103141317B CN103141317B (en) | 2014-12-31 |
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| 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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Citations (10)
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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 |
| CN101543169A (en) * | 2008-03-26 | 2009-09-30 | 苏州宝时得电动工具有限公司 | Gardening cutter and tool setting method thereof |
| 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 |
| 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 (10)
| 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 |
| CN101543169A (en) * | 2008-03-26 | 2009-09-30 | 苏州宝时得电动工具有限公司 | Gardening cutter and tool setting method thereof |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103141317B (en) | 2014-12-31 |
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