CN105728846B - Multifunctional saw quick change construction and quick change method - Google Patents
Multifunctional saw quick change construction and quick change method Download PDFInfo
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- CN105728846B CN105728846B CN201610221396.1A CN201610221396A CN105728846B CN 105728846 B CN105728846 B CN 105728846B CN 201610221396 A CN201610221396 A CN 201610221396A CN 105728846 B CN105728846 B CN 105728846B
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- quick change
- collet
- output shaft
- compression spring
- bar
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
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Abstract
The present invention relates to a kind of quick change multifunctional saw structure,Solve the problems, such as that traditional multifunctional saw sawblade-replacing is cumbersome,Belong to mechanical equipment technical field,Described fast replacing device pulls button including quick change,Eccentric block,Motion bar,Collet,Swelling bar,Compression spring,Quick change pulls button and eccentric block by straight pin with being connected at the top of head capsule,Motion bar is located in output shaft,Top is with eccentric block against connection,Bottom is threadedly coupled with swelling bar,Collet is cased with the outside of swelling bar,Compression spring is cased with the outside of collet,Described knife rest is located at output shaft bottom,Knife rest inwall is provided with the gradient inside from top to bottom,The outer surface of corresponding collet is provided with projection,The change that quick change multifunctional saw structure of the present invention only need to pull button and can be achieved with collet diameter by stirring quick change,So as to realize dismounting and change the purpose of saw blade.The invention also discloses the quick change method of the quick change multifunctional saw structure.
Description
Technical field
The invention belongs to mechanical equipment technical field, and it is fast to be related to a kind of the work head for replaceable head electric tool and body
Speed separation or the detaching structure loaded, more particularly to a kind of multifunctional saw quick change construction are fast the invention also discloses multifunctional saw
Change the quick change method of structure.
Background technology
Multifunctional saw currently on the market, the overwhelming majority all use pressing plate and soket head cap screw, and the multifunctional saw saw blade is more
Or change operation with specific purpose tool fasten or unscrew, or directly with hand rotate rotational fastener circle, this multifunctional saw structure and
Substitute mode, due to no locking safeguard construction, is easily loosened in saw blade rotary work, and hidden danger is brought to safe handling, and
And fastening or disassembling section trouble, do not fasten sometimes, dismounting is not got off again sometimes.Pulled it is also desirable to be equipped with a hexagonal
Hand, it is necessary to carry, and have the defects of easy to be lost at any time.
The content of the invention
In order to overcome drawbacks described above and expand product use range, product use feeling is improved, the present invention provides a kind of more
Function saws quick change construction, realizes the quick-replaceable of saw blade.
For the attainment of one's purpose, technical scheme provided by the invention is：
A kind of multifunctional saw quick change construction of the present invention includes head capsule, knife rest and output device, it is characterised in that：Its
Also include fast replacing device, described output device is located in head capsule, and output device includes fork, output shaft, deep groove ball bearing, rolling
Needle bearing, deep groove ball bearing are fixed on output shaft top outer by jump ring, and fork is located on the outside of output shaft middle part, output
Axle bottom outside is provided with needle bearing；Described fast replacing device pulls button, eccentric block, motion bar, collet, swelling including quick change
Bar, compression spring, quick change pull button and eccentric block by straight pin with being connected at the top of head capsule, and motion bar is located in output shaft, top
It is threadedly coupled with eccentric block against connection, bottom with swelling bar, collet is cased with the outside of swelling bar, is cased with the outside of collet
Compression spring, described knife rest are located at output shaft bottom, and knife rest inwall is provided with the gradient inside from top to bottom, corresponding bullet
The outer surface of spring chuck is provided with projection.
Preferably, described output shaft is hollow cylindrical structure, it is divided into three sections of upper, middle and lower, output shaft epimere diameter
Less than stage casing diameter, output shaft stage casing diameter is less than hypomere diameter, and output shaft epimere outer wall is additionally provided with jump ring mounting groove.
Preferably, described deep groove ball bearing upper and lower ends are equipped with jump ring, the jump ring that deep groove ball bearing passes through upper end
With exporting axis connection, it is connected by the jump ring of lower end with head capsule.
Preferably, described motion bar bottom is provided with bellend, top and the motion bar bottom bellend of compression spring
Lower surface be close to connect, the bottom of compression spring is close to connect with the upper surface of knife rest.
Preferably, described fast replacing device also includes the second compression spring, the second compression spring is arranged on outside swelling bar
Side.
Preferably, described collet top is provided with bellend, collet inwall is provided with spring supporting tongue, pressure
Contracting spring top is close to connect with the bellend lower surface on collet top, top and the motion bar following table of the second compression spring
Face is close to connect, and bottom is close to connect with spring supporting tongue upper surface.
Preferably, it is provided with sealing ring in the space of head capsule and output shaft on the downside of described needle bearing.
The invention also discloses the quick change method of the multifunctional saw quick change construction, comprise the following steps：
(1) factory-assembled multifunctional saw quick change construction：By deep groove ball bearing, jump ring, shift fork, needle bearing, output shaft, work
Lever, collet, swelling bar, compression spring, knife rest and sealing ring are separately mounted in head capsule, then will be fast using straight pin
Change and pull button and eccentric block at the top of head capsule；
(2) using straight pin as center of rotation, stir quick change and pull button, quick change pulls cingulum and moves eccentric block rotation；
(3) due to the presence of eccentric throw, the elastic force of compression spring is offset, motion bar is pressed down, drive swelling bar to move down,
Swelling bar drives collet to move down again, and collet bottom projection touches the gradient of knife rest inwall, and bullet is acted in pressure
Spring chuck lower end diameter reduces；
(4) saw blade is arranged on collet end；
(5) back stir quick change and pull button, in the presence of compression spring, motion bar drives swelling bar to move up, swelling
Bar drives collet to move up again, and the pressure that collet end loses the knife rest inwall gradient is opened, and saw blade is fixed on
On knife rest, the quick change of saw blade is realized.
Preferably, the swelling bar described in step 3 can also drive collet to move down by the second compression spring.
Preferably, saw blade is installed when collet lower end diameter is contracted to the diameter less than saw blade mounting hole.
Using technical scheme provided by the invention, compared with prior art, have the advantages that：
Multifunctional saw quick change construction of the present invention, which only needs to pull button by stirring the quick change on the upside of head capsule, can be achieved with
Dismounting and the purpose for changing saw blade, without using other aids, simple to operate, speed is fast.
Brief description of the drawings
Fig. 1 is the multifunctional saw quick change construction schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the schematic diagram before the multifunctional saw quick change construction use of the embodiment of the present invention 1；
Fig. 3 is the schematic diagram under the multifunctional saw quick change construction use state of the embodiment of the present invention 1；
Fig. 4 is the multifunctional saw quick change construction exploded view of the embodiment of the present invention 1；
Fig. 5 is the multifunctional saw quick change construction schematic diagram of the embodiment of the present invention 2；
Fig. 6 is the schematic diagram before the multifunctional saw quick change construction use of the embodiment of the present invention 2；
Fig. 7 is the schematic diagram under the multifunctional saw quick change construction use state of the embodiment of the present invention 2；
Fig. 8 is the multifunctional saw quick change construction exploded view of the embodiment of the present invention 2；
Fig. 9 is output shaft schematic diagram of the present invention.
Mark explanation in schematic diagram：1- quick changes pull button；2- eccentric blocks；3- jump rings；4- straight pins；5- head capsules；6- zanjons
Ball bearing；7- compression springs；8- forks；9- needle bearings；10- output shafts；11- motion bars；12- knife rests；13- collets；
14- swelling bars；15- sealing rings；16- saw blades；The compression springs of 17- second；18- jump ring mounting grooves.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments, implements below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Embodiment 1
With reference to Fig. 1~Fig. 4, Fig. 9, the multifunctional saw quick change construction that the present embodiment is related to includes head capsule 5, knife rest 12, output
Device and fast replacing device, wherein output device include fork 8, output shaft 10, deep groove ball bearing 6, needle bearing 9, fast replacing device
Button 1, eccentric block 2, motion bar 11, collet 13, swelling bar 14 and compression spring 7 are pulled including quick change.
The above-mentioned top of head capsule 5 is pulled using the connection quick change of straight pin 4 and detains 1 and eccentric block 2, from upper in the cavity of the inner side of head capsule 5
Deep groove ball bearing 6, fork 8 and needle bearing 9 are separately installed with, wherein deep groove ball bearing 6 passes through in jump ring 3 and head capsule 5
Wall connects, and deep groove ball bearing 6, fork 8 and the inner side of needle bearing 9 connect the upper, middle and lower three parts of output shaft 10 respectively again, wherein
The epimere of output shaft 10 is provided with jump ring mounting groove 18, and output shaft 10 is connected by the jump ring 3 in jump ring mounting groove 18 with deep groove ball bearing 6
Connect, the internal diameter of above-mentioned deep groove ball bearing 6 and needle bearing 9 is bigger 0.1~0.3mm than the external diameter of output shaft two sections respectively, rises
To the effect of positioning, fork 8 plays a part of adjusting the rotating speed of output shaft 10, the head capsule 5 of the downside of needle bearing 9 and output shaft 10
The sealing ring 15 of annular is set in space.Output shaft 10 is hollow structure, and the hollow position of the upper end of output shaft 10 is provided with motion bar
11, there is enlarged footing the lower end of motion bar 11, and extends to the stage casing of output shaft 10 and the axis hole position of hypomere, and the lower end of motion bar 11 expands
Be again provided with circular opening in head, internal thread be provided with hole, the top of swelling bar 14 is provided with external screw thread, just with motion bar 11
Internal thread matching in stomidium hole, both are threadedly coupled.The outside of motion bar 11 is cased with collet 13 and compression spring successively
7, the bottom of output shaft 10 is fixed with knife rest 12, and the enlarged footing of the lower end of motion bar 11 is withstood on the top of compression spring 7, and bottom is supported on knife
The upper surface of frame 12.The described outside of collet 13 is provided with projection, and the corresponding inner side of knife rest 12 is provided with from top to bottom inwardly
The gradient, when collet 13 moves down the gradient of touching knife rest 12 inner side, collet 13 tightens.
The quick change method of the present embodiment multifunctional saw quick change construction includes：
Step 1：Factory-assembled multifunctional saw quick change construction：By deep groove ball bearing 6, jump ring 3, shift fork 8, needle bearing 9,
Output shaft 10, motion bar 11, collet 13, swelling bar 14, compression spring 7, knife rest 12 and sealing ring 15 are separately mounted to head
In shell, quick change is then pulled by button 1 using straight pin 4 and eccentric block 2 is arranged at the top of head capsule；
Step 2：It is center of rotation with straight pin 4, stirs quick change and pull button 1, quick change pulls button 1 and drives eccentric block to rotate 2；
Step 3：Due to the presence of eccentric throw, the elastic force of compression spring 7 is offset, motion bar 11 is pressed down, drive swelling
Bar 14 moves down, and swelling bar 14 drives collet 13 to move down again, the bottom projection touching inwall of knife rest 12 of collet 13
The gradient, reduced in pressure effect collet 13 lower end diameter；
Step 4：When the lower end diameter of collet 13 is less than the mounting hole of saw blade 16, saw blade 16 is arranged on spring clip
Cephalic par；
Step 5：Back stir quick change and pull button 1, in the presence of compression spring 7, motion bar 11 drives swelling bar 14 upward
Mobile, swelling bar 14 drives collet 13 to move up again, and the end of collet 13 loses the pressure of the inwall gradient of knife rest 12
And open, saw blade is fixed on knife rest, realizes the quick change of saw blade 16.
Embodiment 2
With reference to Fig. 5~Fig. 9, the multifunctional saw quick change construction that the present embodiment is related to includes head capsule 5, knife rest 12, output device
And fast replacing device, wherein output device include fork 8, output shaft 10, deep groove ball bearing 6, needle bearing 9, fast replacing device includes
Quick change pulls button 1, eccentric block 2, motion bar 11, collet 13, swelling bar 14, the compression spring 17 of compression spring 7 and second.
The above-mentioned top of head capsule 5 is pulled using the connection quick change of straight pin 4 and detains 1 and eccentric block 2, from upper in the cavity of the inner side of head capsule 5
Deep groove ball bearing 6, fork 8 and needle bearing 9 are separately installed with, wherein deep groove ball bearing 6 passes through in jump ring 3 and head capsule 5
Wall connects, and deep groove ball bearing 6, fork 8 and the inner side of needle bearing 9 connect the upper, middle and lower three parts of output shaft 10 respectively again, wherein
The epimere of output shaft 10 is provided with jump ring mounting groove, and output shaft 10 is connected by the jump ring 3 in jump ring mounting groove 18 with deep groove ball bearing 6
Connect, the internal diameter of above-mentioned deep groove ball bearing 6 and needle bearing 9 is bigger 0.1~0.3mm than the external diameter of output shaft two sections respectively, rises
To the effect of positioning, fork 8 plays a part of adjusting the rotating speed of output shaft 10, the head capsule 5 of the downside of needle bearing 9 and output shaft 10
The sealing ring 15 of annular is set in space.Output shaft 10 is hollow structure, and the hollow position of the upper end of output shaft 10 is provided with motion bar
11, there is enlarged footing the lower end of motion bar 11, and extends to the stage casing of output shaft 10 and the axis hole position of hypomere, and the lower end of motion bar 11 expands
Be again provided with circular opening in head, internal thread be provided with hole, the top of swelling bar 14 is provided with external screw thread, just with motion bar 11
Internal thread matching in stomidium hole, both are threadedly coupled.The top of motion bar 11 is cased with the second compression spring 17, and the present embodiment uses
The inner side of collet 13 be provided with spring supporting tongue, top is provided with bellend, and collet 13 is enclosed on motion bar 11 and second
The outside of compression spring 17, and the bottom of the second compression spring 17 is supported on spring supporting tongue, top is withstood under motion bar 11
Surface, compression spring 7 are enclosed on the outside of collet 13, and the bottom of output shaft 10 is fixed with knife rest 12, and bullet is withstood on the top of compression spring 7
The bellend at the top of spring chuck 13, bottom is supported on the upper surface of knife rest 12.The described outside of collet 13 is provided with projection, therewith
The corresponding inner side of knife rest 12 is provided with the gradient from top to bottom inwardly, when collet 13 moves down the slope of the inner side of touching knife rest 12
When spending, collet 13 tightens.
The quick change method of the present embodiment multifunctional saw quick change construction includes：
Step 1：Factory-assembled multifunctional saw quick change construction, by deep groove ball bearing 6, jump ring 3, shift fork 8, needle bearing 9,
Output shaft 10, motion bar 11, collet 13, swelling bar 14, compression spring 7, knife rest 12 and sealing ring 15 are separately mounted to head
In shell, quick change is then pulled by button 1 using straight pin 4 and eccentric block 2 is arranged at the top of head capsule；
Step 2：It is center of rotation with straight pin 4, stirs quick change and pull button 1, quick change pulls button 1 and drives eccentric block to rotate 2；
Step 3：Due to the presence of eccentric throw, the elastic force of compression spring 7 is offset, motion bar 11 is pressed down, drive swelling
Bar 14 moves down, and extrudes the second compression spring 17, and the elastic force driving spring chuck 13 of the second compression spring 17 moves down, spring
The gradient of the bottom projection touching inwall of knife rest 12 of chuck 13, reduces in pressure effect collet 13 lower end diameter；
Step 4：When the lower end diameter of collet 13 is less than the mounting hole of saw blade 16, saw blade 16 is arranged on spring clip
Cephalic par；
Step 5：Back stir quick change and pull button 1, push up collet 13 upwards in the presence of compression spring 7, and coordinate
The two the second compression springs 17 carry motion bar 11 and swelling bar 14 on the whole, and the end of collet 13 loses the inwall slope of knife rest 12
The pressure of degree is opened, and saw blade 16 is fixed on knife rest 12, realizes the quick change of saw blade 16.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one embodiment of the present invention, and actual structure is not limited thereto.So ordinary skill people of this area
Member is enlightened by it, without departing from the spirit of the invention, similar to the technical scheme without designing for creativeness
Frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (10)
1. a kind of multifunctional saw quick change construction, including head capsule, knife rest and output device, it is characterised in that：It also includes changing the outfit soon
Put, described output device is located in head capsule, and output device includes fork, output shaft, deep groove ball bearing, needle bearing, zanjon
Ball bearing is fixed on output shaft top outer by jump ring, and fork is located on the outside of output shaft middle part, output shaft bottom outside
Provided with needle bearing；Described fast replacing device pulls button, eccentric block, motion bar, collet, swelling bar, compression bullet including quick change
Spring, quick change pull button and eccentric block by straight pin with being connected at the top of head capsule, and motion bar is located in output shaft, and top is tight with eccentric block
By connection, bottom is threadedly coupled with swelling bar, and collet is cased with the outside of swelling bar, compression spring is cased with the outside of collet,
Described knife rest is located at output shaft bottom, and knife rest inwall is provided with the gradient inside from top to bottom, corresponding collet
Outer surface is provided with projection.
A kind of 2. multifunctional saw quick change construction according to claim 1, it is characterised in that：Described output shaft is hollow
Cylindrical structure, it is divided into three sections of upper, middle and lower, output shaft epimere diameter is less than stage casing diameter, and it is straight that output shaft stage casing diameter is less than hypomere
Footpath, output shaft epimere outer wall are additionally provided with jump ring mounting groove.
A kind of 3. multifunctional saw quick change construction according to claim 1 or 2, it is characterised in that：Described deep groove ball bearing
Upper and lower ends are equipped with jump ring, and deep groove ball bearing passes through the jump ring and head capsule of lower end by the jump ring and output axis connection of upper end
Connection.
A kind of 4. multifunctional saw quick change construction according to claim 1, it is characterised in that：Described motion bar bottom is provided with
Bellend, the top of compression spring are close to connect with the lower surface of motion bar bottom bellend, the bottom of compression spring and knife rest
Upper surface be close to connect.
A kind of 5. multifunctional saw quick change construction according to claim 1, it is characterised in that：Described fast replacing device also includes
Second compression spring, the second compression spring are arranged on the outside of swelling bar.
A kind of 6. multifunctional saw quick change construction according to claim 1 or 5, it is characterised in that：The described spring clip crown
End is provided with bellend, and collet inwall is provided with spring supporting tongue, the bellend on compression spring top and collet top
Lower surface is close to connect, and the top of the second compression spring is close to connect with motion bar lower surface, on bottom and spring supporting tongue
It is close to connect in surface.
A kind of 7. multifunctional saw quick change construction according to claim 1, it is characterised in that：Head on the downside of described needle bearing
Sealing ring is provided with the space of shell and output shaft.
A kind of 8. quick change method using one of claim 1~7 multifunctional saw quick change construction, it is characterised in that：It is wrapped
Include following steps：
(1) factory-assembled multifunctional saw quick change construction：By deep groove ball bearing, jump ring, shift fork, needle bearing, output shaft, activity
Bar, collet, swelling bar, compression spring, knife rest and sealing ring are separately mounted in head capsule, then using straight pin by quick change
Pull button and eccentric block is arranged at the top of head capsule；
(2) using straight pin as center of rotation, stir quick change and pull button, quick change pulls cingulum and moves eccentric block rotation；
(3) due to the presence of eccentric throw, the elastic force of compression spring is offset, motion bar is pressed down, drive swelling bar to move down, swelling
Bar drives collet to move down again, and collet bottom projection touches the gradient of knife rest inwall, and spring clip is acted in pressure
Head lower end diameter reduces；
(4) saw blade is arranged on collet end；
(5) back stir quick change and pull button, in the presence of compression spring, motion bar drives swelling bar to move up, and swelling bar is again
Collet is driven to move up, the pressure that collet end loses the knife rest inwall gradient is opened, and saw blade is fixed on into knife rest
On, realize the quick change of saw blade.
9. the quick change method of multifunctional saw quick change construction according to claim 8, it is characterised in that：Described in step 3
Swelling bar can also drive collet to move down by the second compression spring.
10. the quick change method of multifunctional saw quick change construction according to claim 8, it is characterised in that：When under collet
End diameter is contracted to install saw blade during the diameter less than saw blade mounting hole.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221396.1A CN105728846B (en) | 2016-04-11 | 2016-04-11 | Multifunctional saw quick change construction and quick change method |
| DE202017100297.7U DE202017100297U1 (en) | 2016-04-11 | 2017-01-20 | Quick change structure for multifunctional saw |
| US15/416,842 US10131032B2 (en) | 2016-04-11 | 2017-01-26 | Rapid-replacing structure of multifunctional saw |
| FR1750933A FR3043350B3 (en) | 2016-04-11 | 2017-02-03 | QUICK REPLACEMENT STRUCTURE OF A MULTIFUNCTION SAW |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221396.1A CN105728846B (en) | 2016-04-11 | 2016-04-11 | Multifunctional saw quick change construction and quick change method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105728846A CN105728846A (en) | 2016-07-06 |
| CN105728846B true CN105728846B (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610221396.1A Active CN105728846B (en) | 2016-04-11 | 2016-04-11 | Multifunctional saw quick change construction and quick change method |
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| CN (1) | CN105728846B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112022000365T5 (en) | 2021-11-17 | 2023-10-26 | Zhejiang Jinmei Electric Tools Co., Ltd. | Saw blade quick change structure for electric tools and saw blade quick change method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309492B (en) * | 2017-08-08 | 2023-08-29 | 浙江金美电动工具有限公司 | Multifunctional saw quick-change structure and quick-change method |
| CN207840288U (en) * | 2017-12-28 | 2018-09-11 | 宝时得科技（中国）有限公司 | Multi Role Aircraft |
| CN112223220A (en) * | 2020-10-15 | 2021-01-15 | 南京久驰机电实业有限公司 | Quick clamping device and multifunctional tool machine adopting same |
| CN113319374A (en) * | 2021-08-04 | 2021-08-31 | 大连理工江苏研究院有限公司 | Metal processing machine tool with tool changing mechanism and tool changing method |
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| DE3523746A1 (en) * | 1985-07-03 | 1987-01-08 | Metabowerke Kg | Quick-action clamping device for rotating disc-shaped tools |
| DE202012013677U1 (en) * | 2012-04-17 | 2019-06-19 | C. & E. Fein Gmbh | Hand tool with a clamping device |
| JP2014131824A (en) * | 2013-01-07 | 2014-07-17 | Makita Corp | Work tool |
| CN103317190B (en) * | 2013-06-20 | 2015-07-15 | 浙江通达电器有限公司 | Multifunctional saw chuck device of fast clamping saw blade |
| CN104669218B (en) * | 2013-11-29 | 2016-10-12 | 苏州宝时得电动工具有限公司 | Swing-type power tool |
| CN104708606B (en) * | 2015-03-19 | 2016-05-18 | 常州彤扬电气制造有限公司 | Multi-purpose tool and quick change construction thereof |
| CN205551644U (en) * | 2016-04-11 | 2016-09-07 | 浙江金美电动工具有限公司 | Multi -functional saw quick change structure |
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2016
- 2016-04-11 CN CN201610221396.1A patent/CN105728846B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112022000365T5 (en) | 2021-11-17 | 2023-10-26 | Zhejiang Jinmei Electric Tools Co., Ltd. | Saw blade quick change structure for electric tools and saw blade quick change method |
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