CN105234905A - Rapid clamping mechanism for saw blade of multifunctional shovel - Google Patents
Rapid clamping mechanism for saw blade of multifunctional shovel Download PDFInfo
- Publication number
- CN105234905A CN105234905A CN201510709977.5A CN201510709977A CN105234905A CN 105234905 A CN105234905 A CN 105234905A CN 201510709977 A CN201510709977 A CN 201510709977A CN 105234905 A CN105234905 A CN 105234905A
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- CN
- China
- Prior art keywords
- output shaft
- saw blade
- casing
- knob
- clamping mechanism
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
Abstract
The invention discloses a rapid clamping mechanism for a saw blade of a multifunctional shovel. The rapid clamping mechanism comprises a shell and an output shaft penetrating the front end face of the shell. The output shaft is in a hollow cylindrical shape. A clamping screw is arranged in the output shaft. The head end of the clamping screw is located on the rear end face in the shell. A press plate used for being matched with the output shaft for clamping of the saw blade is arranged at the front end of the output shaft. An annular column is arranged on the press plate and inserted in the output shaft to be connected with the clamping screw. A first reset spring is arranged at the position, between the output shaft and the press plate, of the clamping screw in a sleeving manner. A rotary knob matched with the head end of the clamping screw is arranged on the rear end face of the shell and can slide on the shell in the axial direction of the output shaft. A second reset spring is arranged between the rotary knob and the head end of the clamping screw. The rapid clamping mechanism has the beneficial effects of being simple in structure, reliable in clamping, capable of achieving mounting and demounting of the saw blade conveniently and fast, low in cost and the like.
Description
Technical field
The present invention relates to a kind of Multifunctional shovel, particularly a kind of saw blade quick clamping mechanism of Multifunctional shovel, belongs to field of power tools.
Background technology
Multifunctional shovel is the swing class power tool of the common hand-held of industry, and to be output shaft do rotational oscillating motion around self axial line for its operation principle, thus drive the saw blade oscillating motion being arranged on output shaft end.Common saw blade comprises: straight blade, saw blade, triangle frosted dish and spade-type scraper etc.Therefore multiple different operating function can be realized after user is provided with different saw blades on output shaft, as: saw, cut, grind, scrape, to adapt to different job requirements.
Saw blade is first placed on output shaft by traditional Multifunctional shovel, and being matched with clamping plate by screw or back-moving spring is arranged on output shaft by working head; Wherein, by screw, working head is arranged on output shaft, precondition needs by external tools, being screwed by screw is fixed on output shaft by working head, otherwise do not have instrument or screw not to screw, working head all cannot correctly be fixed on output shaft, therefore make troubles to operation, bring restriction to use; Being matched with clamping plate by back-moving spring is arranged on output shaft by working head, although its operation connects compared to screw want simple, but the size of the restoring force of spring still has the limit, the saw blade of this connected mode in use easily swings, easily wearing and tearing are caused to the locating hole of saw blade, thus cause saw blade to damage.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, the invention provides that a kind of structure structure is simple, reliable clamping, conveniently can mount and dismount the saw blade quick clamping mechanism of saw blade, lower-cost Multifunctional shovel.
The technical solution adopted for the present invention to solve the technical problems is: a kind of saw blade quick clamping mechanism of Multifunctional shovel, comprise casing and the output shaft running through casing front end face, described output shaft is hollow tube-shape, be provided with clamping screw in described output shaft, the head end of described clamping screw is positioned at the rear end face place of casing internal; Described output shaft front end is provided with the pressing plate for coordinating clamping saw blade with output shaft, described pressing plate is provided with circular column, described circular column inserts in output shaft and is connected with clamping screw, and described clamping screw is arranged with the first back-moving spring between output shaft and pressing plate; The rear end face of described casing is provided with the knob matched with the head end of clamping screw, and described knob can sliding axially along output shaft on casing, is provided with the second back-moving spring between the head end of described knob and clamping screw.
In use, by extruding knob, knob is connected with the head of clamping screw, then turning knob, owing to being arranged with the first back-moving spring between output shaft and pressing plate, so make the gap between output shaft front end and pressing plate become large at turning knob, then between output shaft front end and pressing plate, saw blade is installed, then counter-rotation knob, output shaft front end and pressing plate is made to compress saw blade, finally lay down the power executed on knob, knob eject under the effect of the second back-moving spring with the head part of clamping screw from.Adopt said structure, by pressing plate, cooperatively interacting between pinching screw and output shaft clamps saw blade, effectively improve the reliability of clamping, and by the dismounting saw blade that cooperatively interacts of knob and pinching screw, make the installation and removal of saw blade more convenient.
As preferably, the front end face of described output shaft is provided with positioning boss, and described saw blade is provided with the locating hole matched with positioning boss.Adopt said structure, by coordinating of positioning boss and locating hole, improve the reliability and stability that saw blade clamps.
As preferably, described casing is provided with chapiter screw, and described knob outer ring is provided with cannelure, and the tail end of described chapiter screw is positioned at cannelure.Adopt said structure, by chapiter screw, the position of knob on casing is limited, ensure that the stability of the installation and removal of saw blade.
As preferably, be provided with in described knob and be rotatably connected to auxiliary plectrum.Adopting said structure, when installing saw blade, increasing knob to pinching screw applied force square by arranging auxiliary plectrum, make the clamping of saw blade more reliable, stable; Otherwise, when dismantling, make knob turn pinching screw more laborsaving.
As preferably, described auxiliary plectrum is provided with slotted eye, and knob is provided with circular hole relative to slotted eye place, is provided with the 3rd back-moving spring in described slotted eye, and described 3rd back-moving spring upper end is provided with steel ball, and described steel ball and circular hole abut against.Adopt said structure, connect auxiliary plectrum and knob by the 3rd back-moving spring, steel ball, make it install more convenient, more smooth and easy during use.
As preferably, described knob is provided with the straight pin for limiting the auxiliary plectrum anglec of rotation.Adopt said structure, limited by the maximum open angle of straight pin to auxiliary plectrum, effectively improve the service life of auxiliary plectrum, and auxiliary plectrum uses also more laborsaving.
As preferably, on described output shaft one end in casing, flat side is connected with shift fork.Adopt said structure, adopt flat side to be connected between output shaft with fork, effectively prevent the situation that output shaft and fork easily skid when high speed operation and occur, requirement on machining accuracy is lower, assembling is simple, reduces production cost.
As preferably, the center line of described output shaft is mutually vertical with fork.
As preferably, between described output shaft and casing, be provided with bearing, between described bearing and output shaft, be provided with circlip for shaft, between described bearing and casing, be provided with circlip for hole.Adopt said structure, effectively increase the sealing at bearing place, improve service life.
The present invention has that structure structure is simple, reliable clamping, conveniently can mount and dismount the advantages such as saw blade, cost are lower.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the explosive view of the embodiment of the present invention;
Fig. 3 is a kind of front view of output shaft of the present invention.
Detailed description of the invention
Below by specific embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
The saw blade quick clamping mechanism of a kind of Multifunctional shovel as shown in Figure 1 to Figure 3, comprise casing 1 and the output shaft 2 running through casing 1 front end face, described output shaft 2 is hollow tube-shape, is provided with clamping screw 3 in described output shaft 2, and the head end of described clamping screw 3 is positioned at the rear end face place of casing 1 inside; Described output shaft 2 front end is provided with the pressing plate 5 for coordinating clamping saw blade 4 with output shaft 2, described pressing plate 5 is provided with circular column 51, described circular column 51 inserts in output shaft 2 and is connected with clamping screw 3, and described clamping screw 3 is arranged with the first back-moving spring 6 between output shaft 2 and pressing plate 5; The rear end face of described casing 1 is provided with the knob 7 matched with the head end of clamping screw 3, and described knob 7 can sliding axially along output shaft 2 on casing 1, is provided with the second back-moving spring 8 between described knob 7 and the head end of clamping screw 3.
In use, by extruding knob 7, knob 7 is connected with the head of clamping screw 3, then turning knob 7, owing to being arranged with the first back-moving spring 6 between output shaft 2 and pressing plate 5, so make the gap between output shaft 2 front end and pressing plate 5 become large at turning knob 7, then between output shaft 2 front end and pressing plate 2, saw blade 4 is installed, then counter-rotation knob 7, output shaft 2 front end and pressing plate 5 is made to compress saw blade 4, finally lay down the power executed on knob 7, knob 7 eject under the effect of the second back-moving spring 8 with the head part of clamping screw 3 from.Adopt said structure, by pressing plate 5, cooperatively interacting between pinching screw 3 and output shaft 2 clamps saw blade 4, effectively improve the reliability of clamping, and by cooperatively interact the come dismounting saw blade 4 of knob 7 with pinching screw 3, make the installation and removal of saw blade 4 more convenient.
The front end face of described output shaft 2 is provided with positioning boss 21, and described saw blade 4 is provided with the locating hole 41 matched with positioning boss 21, by coordinating of positioning boss 21 and locating hole 41, improves the reliability and stability that saw blade 4 clamps.
Described casing 1 is provided with chapiter screw 9, described knob 7 outer ring is provided with cannelure 71, the tail end of described chapiter screw 9 is positioned at cannelure 71, is limited, ensure that the stability of the installation and removal of saw blade 4 by chapiter screw 9 to the position of knob 7 on casing 1.
Be provided with in described knob 7 and be rotatably connected to auxiliary plectrum 10, described auxiliary plectrum 10 is provided with slotted eye 101, knob 7 is provided with circular hole 72 relative to slotted eye 101 place, the 3rd back-moving spring 11 is provided with in described slotted eye 101, described 3rd back-moving spring 11 upper end is provided with steel ball 12, described steel ball 12 abuts against with circular hole 72, by the 3rd back-moving spring 11, steel ball 12 connects auxiliary plectrum 10 and knob 7, it is made to install more convenient, more smooth and easy during use, when installing saw blade 4, knob 7 pairs of pinching screw 3 applied force squares are increased by arranging auxiliary plectrum 10, make the clamping of saw blade 4 more reliable, stable, otherwise, when dismantling, make knob 7 turn pinching screw 3 more laborsaving, described knob 7 is provided with the straight pin 13 for limiting auxiliary plectrum 10 anglec of rotation, limited by the maximum open angle of straight pin 13 to auxiliary plectrum 10, effectively improve the service life of auxiliary plectrum 10, and auxiliary plectrum 10 uses also more laborsaving.
On described output shaft 2 one end in casing 1, flat side is connected with shift fork 14, the center line of described output shaft 2 is mutually vertical with fork 14, flat side is adopted to be connected between output shaft 2 with fork 14, effectively prevent the situation that output shaft 2 and fork 14 easily skid when high speed operation to occur, requirement on machining accuracy is lower, assembling is simple, reduces production cost.
Be provided with bearing 15 between described output shaft 2 and casing 1, between described bearing 15 and output shaft 2, be provided with circlip for shaft 16, be provided with circlip for hole 17 between described bearing 15 and casing 1, effectively increase the sealing at bearing 15 place, improve service life.
The present invention has that structure structure is simple, reliable clamping, conveniently can mount and dismount the advantages such as saw blade, cost are lower.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (9)
1. the saw blade quick clamping mechanism of a Multifunctional shovel, comprise casing (1) and run through the output shaft (2) of casing (1) front end face, described output shaft (2) is hollow tube-shape, it is characterized in that: be provided with clamping screw (3) in described output shaft (2), the head end of described clamping screw (3) is positioned at the inner rear end face place of casing (1); Described output shaft (2) front end is provided with the pressing plate (5) for coordinating clamping saw blade (4) with output shaft (2), described pressing plate (5) is provided with circular column (51), described circular column (51) inserts in output shaft (2) and is connected with clamping screw (3), and described clamping screw (3) is arranged with the first back-moving spring (6) between output shaft (2) and pressing plate (5); The rear end face of described casing (1) is provided with the knob (7) matched with the head end of clamping screw (3), described knob (7) can on casing (1) sliding axially along output shaft (2), be provided with the second back-moving spring (8) between the head end of described knob (7) and clamping screw (3).
2. the saw blade quick clamping mechanism of Multifunctional shovel according to claim 1, is characterized in that: the front end face of described output shaft (2) is provided with positioning boss (21), and described saw blade (4) is provided with the locating hole (41) matched with positioning boss (21).
3. the saw blade quick clamping mechanism of Multifunctional shovel according to claim 1, it is characterized in that: described casing (1) is provided with chapiter screw (9), described knob (7) outer ring is provided with cannelure (71), and the tail end of described chapiter screw (9) is positioned at cannelure (71).
4. want the saw blade quick clamping mechanism of the Multifunctional shovel described in 1 according to right, it is characterized in that: be provided with in described knob (7) and be rotatably connected to auxiliary plectrum (10).
5. the saw blade quick clamping mechanism of Multifunctional shovel according to claim 4, it is characterized in that: described auxiliary plectrum (10) is provided with slotted eye (101), knob (7) is provided with circular hole (72) relative to slotted eye (101) place, the 3rd back-moving spring (11) is provided with in described slotted eye (101), described 3rd back-moving spring (11) upper end is provided with steel ball (12), and described steel ball (12) and circular hole (72) abut against.
6. the saw blade quick clamping mechanism of Multifunctional shovel according to claim 5, is characterized in that: described knob (7) is provided with the straight pin (13) for limiting auxiliary plectrum (10) anglec of rotation.
7. the saw blade quick clamping mechanism of Multifunctional shovel according to claim 1, is characterized in that: on described output shaft (2) one end in casing (1), flat side is connected with shift fork (14).
8. the saw blade quick clamping mechanism of Multifunctional shovel according to claim 7, is characterized in that: the center line of described output shaft (2) is mutually vertical with fork (14).
9. the saw blade quick clamping mechanism of Multifunctional shovel according to claim 1, it is characterized in that: between described output shaft (2) and casing (1), be provided with bearing (15), be provided with circlip for shaft (16) between described bearing (15) and output shaft (2), between described bearing (15) and casing (1), be provided with circlip for hole (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709977.5A CN105234905A (en) | 2015-10-28 | 2015-10-28 | Rapid clamping mechanism for saw blade of multifunctional shovel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709977.5A CN105234905A (en) | 2015-10-28 | 2015-10-28 | Rapid clamping mechanism for saw blade of multifunctional shovel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105234905A true CN105234905A (en) | 2016-01-13 |
Family
ID=55032851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510709977.5A Pending CN105234905A (en) | 2015-10-28 | 2015-10-28 | Rapid clamping mechanism for saw blade of multifunctional shovel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105234905A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406694A (en) * | 2018-05-21 | 2018-08-17 | 常州合力电器有限公司 | Multifunctional electric shovels |
| CN110067398A (en) * | 2019-04-30 | 2019-07-30 | 湖南六建装饰设计工程有限责任公司 | A kind of fitting-up Multifunctional scraper knife and its method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020170408A1 (en) * | 2001-05-21 | 2002-11-21 | Markus Hartmann | Electrical tool with a quick-action clamping device |
| CN201102219Y (en) * | 2007-09-29 | 2008-08-20 | 许延龙 | Spanner with adjustable length |
| CN202114712U (en) * | 2010-12-25 | 2012-01-18 | 浙江特畅恒实业有限公司 | Swinging-type power tool capable of quickly changing working head |
| CN102896619A (en) * | 2011-07-26 | 2013-01-30 | 苏州宝时得电动工具有限公司 | Power tool and operation method thereof |
| US20140327215A1 (en) * | 2013-05-06 | 2014-11-06 | Milwaukee Electric Tool Corporation | Oscillating multi-tool system |
| CN104742096A (en) * | 2013-12-27 | 2015-07-01 | 日立工机株式会社 | Powered working machine |
| CN205271933U (en) * | 2015-10-28 | 2016-06-01 | 利达机电有限公司 | Multi -purpose shovel's saw bit quick clamping mechanism |
-
2015
- 2015-10-28 CN CN201510709977.5A patent/CN105234905A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020170408A1 (en) * | 2001-05-21 | 2002-11-21 | Markus Hartmann | Electrical tool with a quick-action clamping device |
| CN201102219Y (en) * | 2007-09-29 | 2008-08-20 | 许延龙 | Spanner with adjustable length |
| CN202114712U (en) * | 2010-12-25 | 2012-01-18 | 浙江特畅恒实业有限公司 | Swinging-type power tool capable of quickly changing working head |
| CN102896619A (en) * | 2011-07-26 | 2013-01-30 | 苏州宝时得电动工具有限公司 | Power tool and operation method thereof |
| US20140327215A1 (en) * | 2013-05-06 | 2014-11-06 | Milwaukee Electric Tool Corporation | Oscillating multi-tool system |
| CN104742096A (en) * | 2013-12-27 | 2015-07-01 | 日立工机株式会社 | Powered working machine |
| CN205271933U (en) * | 2015-10-28 | 2016-06-01 | 利达机电有限公司 | Multi -purpose shovel's saw bit quick clamping mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406694A (en) * | 2018-05-21 | 2018-08-17 | 常州合力电器有限公司 | Multifunctional electric shovels |
| CN110067398A (en) * | 2019-04-30 | 2019-07-30 | 湖南六建装饰设计工程有限责任公司 | A kind of fitting-up Multifunctional scraper knife and its method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |