CN205271933U - Multi -purpose shovel's saw bit quick clamping mechanism - Google Patents
Multi -purpose shovel's saw bit quick clamping mechanism Download PDFInfo
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- CN205271933U CN205271933U CN201520841991.6U CN201520841991U CN205271933U CN 205271933 U CN205271933 U CN 205271933U CN 201520841991 U CN201520841991 U CN 201520841991U CN 205271933 U CN205271933 U CN 205271933U
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- output shaft
- saw blade
- knob
- machine shell
- clamping mechanism
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Abstract
The utility model provides a multi -purpose shovel's saw bit quick clamping mechanism, the output shaft of terminal surface before includes the casing and runs through the casing, the output shaft is the cavity tube -shape, be equipped with the clamping screw in the output shaft, the head end of clamping screw is located the inside rear end face department of casing, the output shaft front end is equipped with the clamp plate that is used for with output shaft cooperation dress saw clamping piece, be equipped with the annular column on the clamp plate, the annular column is connected with the clamping screw in inserting the output shaft, the clamping screw overlaps between output shaft and clamp plate and is equipped with a reset spring, the rear end face of casing is equipped with the head end assorted knob with the clamping screw, the endwise slip of output shaft can be followed to the knob on the casing, be equipped with the 2nd reset spring between the head end of knob and clamping screw, the utility model has the advantages of the structure construct simple, press from both sides tight reliable, installation that can convenient and fast and dismantle the saw bit, the cost is lower.
Description
Technical field
The utility model relates to a kind of multi-functional shovel, in particular to the saw blade quick clamping mechanism of a kind of multi-functional shovel, belongs to field of power tools.
Background technology
Multi-functional shovel is the swing class power tool of the common hand-held formula of industry, and to be output shaft do rotational oscillating motion around self axial line to its principle of work, thus drives the saw blade oscillating motion being arranged on output shaft end. Common saw blade comprises: straight blade, annular saw sheet, trilateral 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 multi-functional shovel, and being matched with clamping plate by screw or return spring is arranged on output shaft by work head; Wherein, by screw, work head is arranged on output shaft, precondition needs by external tools, being screwed by screw is fixed on output shaft by work head, otherwise, it does not have instrument or screw do not screw, and work head all cannot correctly be fixed on output shaft, therefore make troubles to operation, bring restriction to use; Being matched with clamping plate by return spring is arranged on output shaft by work head, although its operation connects compared to screw wants simple, but the size of the restoring force of spring still has the limit, the saw blade of this kind of mode of connection in use easily swings, easily the pilot hole of saw blade is caused abrasion, thus cause saw blade to damage.
Summary of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, the utility model provides that a kind of structure structure is simple, reliable clamping, can conveniently mount and dismount saw blade, the saw blade quick clamping mechanism of multi-functional shovel that cost is lower.
The utility model solves the technical scheme that its technical problem adopts: the saw blade quick clamping mechanism of a kind of multi-functional shovel, the output shaft of end face before comprising machine shell and running through machine shell, described output shaft is hollow tube-shape, being provided with clamping screw in described output shaft, the head end of described clamping screw is positioned at the aft end face place of machine shell inside; Described output shaft front end is provided with the pressing plate for coordinating clamping saw blade with output shaft, and described pressing plate is provided with circulation column, is connected with clamping screw in described circulation column insertion output shaft, and described clamping screw is arranged with the first return spring between output shaft and pressing plate; The aft end face of described machine shell is provided with the knob that the head end with clamping screw mates mutually, and described knob can slide along the axis of output shaft on machine shell, is provided with the 2nd return 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 return spring between output shaft and pressing plate, so make the gap between output shaft front end and pressing plate become big 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 executing on knob, knob eject under the effect of the 2nd return spring with the head part of clamping screw from. Adopt said structure, saw blade is clamped by cooperatively interacting between pressing plate, tightening screw and output shaft, effectively improve the reliability of clamping, and dismount saw blade by knob and cooperatively interacting of tightening 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 pilot hole mated mutually with positioning boss. Adopt said structure, by coordinating of positioning boss and pilot hole, it is to increase the reliability and stability that saw blade clamps.
As preferably, described machine shell is provided with chapiter screw, described knob outer ring is provided with ring groove, and the tail end of described chapiter screw is positioned at ring groove. Adopt said structure, by chapiter screw, the position of knob on machine shell is limited, ensure that the stability of the installation and removal of saw blade.
As preferably, being rotatably connected to auxiliary plectrum in described knob. Adopt said structure, when installing saw blade, increase knob to tightening screw applied force square by arranging auxiliary plectrum, make the clamping of saw blade more reliable, stable; Otherwise, when dismantling, make knob turn tightening screw more laborsaving.
As preferably, described auxiliary plectrum establishing grooved hole, knob is provided with circular hole relative to groove hole place, is provided with the 3rd return spring in described groove hole, and described 3rd return 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 return spring, steel ball so that it is install more convenient, it may also be useful to time more smooth and easy.
As preferably, described knob is provided with the cylinder pin for limiting auxiliary plectrum angle of rotation. Adopt said structure, by cylinder pin, the maximum open angle of auxiliary plectrum is limited, effectively improve the work-ing life of auxiliary plectrum, and auxiliary plectrum uses also more laborsaving.
As preferably, described output shaft is connected with fork on the one end in machine shell. Adopting said structure, adopt flat side to be connected between output shaft with fork, effectively prevent the situation generation that output shaft and fork easily skid when working at a high speed, requirement on machining accuracy is lower, assembling is simple, reduces production cost.
As preferably, the medullary ray of described output shaft is mutually vertical with fork.
As preferably, being provided with bearing between described output shaft and machine shell, it is provided with axle elasticity back-up ring between described bearing and output shaft, between described bearing and machine shell, it is provided with circlip for hole. Adopt said structure, effectively increase the stopping property at bearing place, it is to increase work-ing life.
The utility model has that structure structure is simple, reliable clamping, can conveniently mount and dismount saw blade, the advantage such as cost is lower.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the utility model embodiment;
Fig. 2 is the explosive view of the utility model embodiment;
Fig. 3 is a kind of frontview of the utility model output shaft.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
The saw blade quick clamping mechanism of a kind of multi-functional shovel as shown in Figure 1 to Figure 3, the output shaft 2 of end face before comprising machine shell 1 and running through machine shell 1, 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 aft end face place of machine shell 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 circulation column 51, described circulation column 51 inserts in output shaft 2 and is connected with clamping screw 3, and described clamping screw 3 is arranged with the first return spring 6 between output shaft 2 and pressing plate 5; The aft end face of described machine shell 1 is provided with the knob 7 that the head end with clamping screw 3 mates mutually, and described knob 7 can slide along the axis of output shaft 2 on machine shell 1, is provided with the 2nd return 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 return spring 6 between output shaft 2 and pressing plate 5, so making the gap between output shaft 2 front end and pressing plate 5 become big at turning knob 7, then saw blade 4 is installed between output shaft 2 front end and pressing plate 2, 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 2nd return spring 8 with the head part of clamping screw 3 from. Adopt said structure, saw blade 4 is clamped by cooperatively interacting between pressing plate 5, tightening screw 3 and output shaft 2, effectively improve the reliability of clamping, and dismount saw blade 4 by knob 7 and cooperatively interacting of tightening 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, the pilot hole 41 that described saw blade 4 is provided with positioning boss 21 phase is mated, by coordinating of positioning boss 21 and pilot hole 41, it is to increase the reliability and stability that saw blade 4 clamps.
Described machine shell 1 is provided with chapiter screw 9, described knob 7 outer ring is provided with ring groove 71, the tail end of described chapiter screw 9 is positioned at ring groove 71, is limited the position of knob 7 on machine shell 1 by chapiter screw 9, ensure that the stability of the installation and removal of saw blade 4.
Auxiliary plectrum 10 it is rotatably connected in described knob 7, described auxiliary plectrum 10 establishes grooved hole 101, knob 7 is provided with circular hole 72 relative to groove hole 101 place, the 3rd return spring 11 it is provided with in described groove hole 101, described 3rd return spring 11 upper end is provided with steel ball 12, described steel ball 12 abuts against with circular hole 72, by the 3rd return spring 11, steel ball 12 connects auxiliary plectrum 10 and knob 7, it is made to install more convenient, during use more smooth and easy, when installing saw blade 4, knob 7 is increased to tightening screw 3 applied force square by arranging auxiliary plectrum 10, make the clamping of saw blade 4 more reliable, stable, otherwise, when dismantling, make knob 7 turn tightening screw 3 more laborsaving, described knob 7 is provided with the cylinder pin 13 for limiting auxiliary plectrum 10 angle of rotation, by cylinder pin 13, the maximum open angle of auxiliary plectrum 10 is limited, effectively improve the work-ing life of auxiliary plectrum 10, and auxiliary plectrum 10 uses also more laborsaving.
Described output shaft 2 is connected with fork 14 on the one end in machine shell 1, the medullary ray 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 generation that output shaft 2 easily skids when work at a high speed with fork 14, requirement on machining accuracy is lower, assembling is simple, reduces production cost.
It is provided with bearing 15 between described output shaft 2 and machine shell 1, between described bearing 15 and output shaft 2, it is provided with axle elasticity back-up ring 16, be provided with circlip for hole 17 between described bearing 15 and machine shell 1, effectively increase the stopping property at bearing 15 place, it is to increase work-ing life.
The utility model has that structure structure is simple, reliable clamping, can conveniently mount and dismount saw blade, the advantage such as cost is lower.
Above-described embodiment is one of the present utility model preferably scheme, not the utility model is done any restriction in form, 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 multi-functional shovel, comprise machine shell (1) and run through the output shaft (2) of machine shell (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 aft end face place of machine shell (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 circulation column (51), being connected with clamping screw (3) in described circulation column (51) insertion output shaft (2), described clamping screw (3) is arranged with the first return spring (6) between output shaft (2) and pressing plate (5); The aft end face of described machine shell (1) is provided with the knob (7) that the head end with clamping screw (3) mates mutually, described knob (7) can slide along the axis of output shaft (2) on machine shell (1), is provided with the 2nd return spring (8) between the head end of described knob (7) and clamping screw (3).
2. the saw blade quick clamping mechanism of multi-functional shovel according to claim 1, it is characterised 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 pilot hole (41) mated mutually with positioning boss (21).
3. the saw blade quick clamping mechanism of multi-functional shovel according to claim 1, it is characterized in that: described machine shell (1) is provided with chapiter screw (9), described knob (7) outer ring is provided with ring groove (71), and the tail end of described chapiter screw (9) is positioned at ring groove (71).
4. the saw blade quick clamping mechanism of multi-functional shovel according to claim 1, it is characterised in that: it is rotatably connected to auxiliary plectrum (10) in described knob (7).
5. the saw blade quick clamping mechanism of multi-functional shovel according to claim 4, it is characterized in that: described auxiliary plectrum (10) establishes grooved hole (101), knob (7) is provided with circular hole (72) relative to groove hole (101) place, the 3rd return spring (11) it is provided with in described groove hole (101), described 3rd return 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 multi-functional shovel according to claim 5, it is characterised in that: described knob (7) is provided with the cylinder pin (13) for limiting auxiliary plectrum (10) angle of rotation.
7. the saw blade quick clamping mechanism of multi-functional shovel according to claim 1, it is characterised in that: described output shaft (2) is connected with fork (14) on the one end in machine shell (1).
8. the saw blade quick clamping mechanism of multi-functional shovel according to claim 7, it is characterised in that: the medullary ray of described output shaft (2) is mutually vertical with fork (14).
9. the saw blade quick clamping mechanism of multi-functional shovel according to claim 1, it is characterized in that: between described output shaft (2) and machine shell (1), be provided with bearing (15), it is provided with axle elasticity back-up ring (16) between described bearing (15) and output shaft (2), between described bearing (15) and machine shell (1), it is provided with circlip for hole (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520841991.6U CN205271933U (en) | 2015-10-28 | 2015-10-28 | Multi -purpose shovel's saw bit quick clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520841991.6U CN205271933U (en) | 2015-10-28 | 2015-10-28 | Multi -purpose shovel's saw bit quick clamping mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN205271933U true CN205271933U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520841991.6U Active CN205271933U (en) | 2015-10-28 | 2015-10-28 | Multi -purpose shovel's saw bit quick clamping mechanism |
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| CN (1) | CN205271933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234905A (en) * | 2015-10-28 | 2016-01-13 | 利达机电有限公司 | Rapid clamping mechanism for saw blade of multifunctional shovel |
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2015
- 2015-10-28 CN CN201520841991.6U patent/CN205271933U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234905A (en) * | 2015-10-28 | 2016-01-13 | 利达机电有限公司 | Rapid clamping mechanism for saw blade of multifunctional shovel |
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| GR01 | Patent grant |