CN205551644U - Multi -functional saw quick change structure - Google Patents
Multi -functional saw quick change structure Download PDFInfo
- Publication number
- CN205551644U CN205551644U CN201620301489.0U CN201620301489U CN205551644U CN 205551644 U CN205551644 U CN 205551644U CN 201620301489 U CN201620301489 U CN 201620301489U CN 205551644 U CN205551644 U CN 205551644U
- Authority
- CN
- China
- Prior art keywords
- quick change
- output shaft
- compression spring
- collet
- knife rest
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a multi -functional saw quick change structure has solved traditional multi -functional saw saw bit and has changed loaded down with trivial details problem, belongs to mechanical equipment technical field, the quick change device include that knot, eccentric block, movable rod, collet chuck are pulled to the quick change, expand tight pole, compression spring, the quick change is pulled to detain and is passed through the cylindric lock with the eccentric block and is connected with the head capsule top, the movable rod is established in the output shaft, top and eccentric block be near being connected, the bottom and the tight pole threaded connection that expands, it has collet chuck to overlap outside the tight pole that expands, it has compression spring to overlap outside the collet chuck, the knife rest establish in output shaft bottom, the knife rest inner wall is equipped with the inward slope of from the top down, the collet chuck's who corresponds with it surface is equipped with the lug, the utility model relates to a multi -functional saw structure of quick change only needs to pull the change that the collet chuck diameter just can be realized to the knot through stirring the quick change to realize dismantling and changing the mesh of saw bit.
Description
Technical field
This utility model belongs to mechanical equipment technical field, relates to a kind of work head for replaceable head electric tool
With body sharp separation or the detaching structure of loading, particularly to a kind of multifunctional saw quick change construction.
Background technology
Multifunctional saw currently on the market, the overwhelming majority all uses pressing plate and soket head cap screw, and this multifunctional saw is sawed
Sheet replacement operation or with specific purpose tool fastening or unscrew, or directly rotate rotational fastener circle with hands, this many
Function saw structure and substitute mode, owing to not locking safeguard construction, easily loosen in saw blade rotary work,
Bring hidden danger to safe handling, and fasten or disassembling section trouble, sometimes do not fasten, dismantle the most again not
Get off.It is also desirable to be equipped with a die nut, need to carry at any time, and have the defects such as easy loss.
Utility model content
In order to overcome drawbacks described above and expand product range, improving product and use impression, this utility model carries
For a kind of multifunctional saw quick change construction, it is achieved that the quick-replaceable of saw blade.
For the attainment of one's purpose, the technical scheme that this utility model provides is:
A kind of multifunctional saw quick change construction that this utility model relates to includes head capsule, knife rest and output device, and it is special
Levy and be: it also includes that fast replacing device, described output device are located in head capsule, output device include fork,
Output shaft, deep groove ball bearing, needle bearing, deep groove ball bearing is fixed on output shaft top outer by jump ring,
Fork is located at outside output shaft middle part, and output shaft bottom outside is provided with needle bearing；Described fast replacing device
Pulling button, eccentric block, motion bar, collet, swelling bar, compression spring including quick change, quick change pulls button with inclined
Heart block is connected with head capsule top by straight pin, and motion bar is located in output shaft, top with eccentric block against being connected,
Threadeding with swelling bar in bottom, is cased with collet, is cased with compression spring outside collet outside swelling bar,
Described knife rest is located at bottom output shaft, and knife rest inwall is provided with the most inside gradient, corresponding bullet
The outer surface of spring chuck is provided with projection.
As preferably, described output shaft is the cylindrical structure of hollow, is divided into upper, middle and lower three sections, on output shaft
Section diameter is less than hypomere diameter less than stage casing diameter, output shaft stage casing diameter, and output shaft epimere outer wall is additionally provided with card
Spring mounting groove.
As preferably, the upper and lower two ends of described deep groove ball bearing are equipped with jump ring, and deep groove ball bearing is by upper end
Jump ring is connected with output shaft, is connected with head capsule by the jump ring of lower end.
As preferably, described motion bar bottom is provided with bellend, and the top of compression spring is expanded with motion bar bottom
The lower surface of big end is close to connect, and the bottom of compression spring is close to be connected with the upper surface of knife rest.
As preferably, described fast replacing device also includes that the second compression spring, the second compression spring are arranged on swelling
Outside bar.
As preferably, described collet top is provided with bellend, and it is convex that collet inwall is provided with spring supporting
Groove, compression spring top is close to be connected with the bellend lower surface on collet top, the top of the second compression spring
End is close to be connected with motion bar lower surface, and bottom is close to be connected with spring supporting tongue upper surface.
As preferably, on the downside of described needle bearing, head capsule is provided with sealing ring in the space of output shaft.
The technical scheme using this utility model to provide, compared with prior art, has the advantages that
The multifunctional saw quick change construction that this utility model relates to has only to pull button by stirring the quick change on the upside of head capsule
Can be achieved with dismounting and change the purpose of saw blade, it is not necessary to using other aids, simple to operate, speed is fast.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment 1 multifunctional saw quick change construction schematic diagram；
Fig. 2 is the schematic diagram before this utility model embodiment 1 multifunctional saw quick change construction uses；
Fig. 3 is the schematic diagram under this utility model embodiment 1 multifunctional saw quick change construction use state；
Fig. 4 is this utility model embodiment 1 multifunctional saw quick change construction exploded view；
Fig. 5 is this utility model embodiment 2 multifunctional saw quick change construction schematic diagram；
Fig. 6 is the schematic diagram before this utility model embodiment 2 multifunctional saw quick change construction uses；
Fig. 7 is the schematic diagram under this utility model embodiment 2 multifunctional saw quick change construction use state；
Fig. 8 is this utility model embodiment 2 multifunctional saw quick change construction exploded view；
Fig. 9 is this utility model output shaft schematic diagram.
Mark explanation in schematic diagram: 1-quick change pulls button；2-eccentric block；3-jump ring；4-straight pin；5-head capsule；
6-deep groove ball bearing；7-compression spring；8-fork；9-needle bearing；10-output shaft；11-motion bar；12-
Knife rest；13-collet；14-swelling bar；15-sealing ring；16-saw blade；17-the second compression spring；18-
Jump ring mounting groove.
Detailed description of the invention
For further appreciating that content of the present utility model, in conjunction with the accompanying drawings and embodiments this utility model is retouched in detail
Stating, following example are used for illustrating this utility model, but are not limited to scope of the present utility model.
Embodiment 1
In conjunction with Fig. 1～Fig. 4, Fig. 9, the multifunctional saw quick change construction that the present embodiment relates 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 that quick change pulls button 1, eccentric block 2, motion bar 11, collet 13, swollen
Tight bar 14 and compression spring 7.
Above-mentioned head capsule 5 top uses straight pin 4 to connect quick change and pulls button 1 and eccentric block 2, the sky inside head capsule 5
Intracavity is separately installed with deep groove ball bearing 6, fork 8 and needle bearing 9, wherein deep groove ball bearing from top to bottom
6 are connected with head capsule 5 inwall by jump ring 3, divide again inside deep groove ball bearing 6, fork 8 and needle bearing 9
Not Lian Jie upper, middle and lower three part of output shaft 10, wherein output shaft 10 epimere is provided with jump ring mounting groove 18, defeated
Shaft 10 is connected with deep groove ball bearing 6 by the jump ring 3 in jump ring mounting groove 18, above-mentioned deep groove ball bearing 6
With the internal diameter of needle bearing 9 respectively bigger than the external diameter of output shaft two sections 0.1～0.3mm, play the work of location
With, fork 8 plays the effect adjusting output shaft 10 rotating speed, the head capsule 5 on the downside of needle bearing 9 and output shaft
The sealing ring 15 of annular is set in the space of 10.Output shaft 10 is hollow structure, in output shaft 10 upper end
Empty position is provided with motion bar 11, and there is an enlarged footing motion bar 11 lower end, and extend to output shaft 10 stage casing and under
The axis hole position of section, is again provided with circular opening in the enlarged footing of motion bar 11 lower end, is provided with female thread in hole,
Swelling bar 14 top is provided with external screw thread, just mates with the female thread in the hole of motion bar 11 lower end, both spiral shells
Stricture of vagina connects.The outside of motion bar 11 is cased with collet 13 and compression spring 7 successively, bottom output shaft 10
Being fixed with knife rest 12, the enlarged footing of motion bar 11 lower end is withstood on compression spring 7 top, and bottom support is at knife rest
12 upper surfaces.Be provided with projection outside described collet 13, be provided with inside corresponding knife rest 12 from
The gradient the most inwardly, when collet 13 moves down the gradient inside touching knife rest 12, alligator clamp
13 tighten.
The principle of the present embodiment multifunctional saw quick change construction is:
With straight pin 4 as center of rotation, stirring quick change and pull button 1, quick change is pulled button 1 drive eccentric block and is rotated 2；
Due to the existence of eccentric throw, offset the elastic force of compression spring 7, motion bar 11 is down pressed, drive swelling bar
14 move down, and swelling bar 14 drives again collet 13 to move down, collet 13 bottom projection touching cutter
The gradient of frame 12 inwall, reduces in pressure effect collet 13 lower end diameter；When collet 13 lower end
When diameter is less than the installing hole of saw blade 16, saw blade 16 is arranged on collet end；Back stir quick change to pull
Button 1, under the effect of compression spring 7, motion bar 11 drives swelling bar 14 to move up, swelling bar 14
Again drive collet 13 move up, collet 13 end lose the knife rest 12 inwall gradient pressure and
Open, saw blade is fixed on knife rest, it is achieved the quick change of saw blade 16.
Embodiment 2
In conjunction with Fig. 5～Fig. 9, the multifunctional saw quick change construction that the present embodiment relates to includes head capsule 5, knife rest 12, defeated
Going out device and fast replacing device, wherein output device includes fork 8, output shaft 10, deep groove ball bearing 6, needle roller
Bearing 9, fast replacing device includes that quick change pulls button 1, eccentric block 2, motion bar 11, collet 13, swelling bar
14, compression spring 7 and the second compression spring 17.
Above-mentioned head capsule 5 top uses straight pin 4 to connect quick change and pulls button 1 and eccentric block 2, the sky inside head capsule 5
Intracavity is separately installed with deep groove ball bearing 6, fork 8 and needle bearing 9, wherein deep groove ball bearing from top to bottom
6 are connected with head capsule 5 inwall by jump ring 3, divide again inside deep groove ball bearing 6, fork 8 and needle bearing 9
Not Lian Jie upper, middle and lower three part of output shaft 10, wherein output shaft 10 epimere is provided with jump ring mounting groove, output shaft
10 are connected with deep groove ball bearing 6 by the jump ring 3 in jump ring mounting groove 18, above-mentioned deep groove ball bearing 6 and rolling
The internal diameter of needle bearing 9 respectively bigger than the external diameter of output shaft two sections 0.1～0.3mm, plays the effect of location,
Fork 8 plays the effect adjusting output shaft 10 rotating speed, the head capsule 5 on the downside of needle bearing 9 and output shaft 10
Space in arrange annular sealing ring 15.Output shaft 10 is hollow structure, the hollow of output shaft 10 upper end
Position is provided with motion bar 11, and there is enlarged footing motion bar 11 lower end, and extends to output shaft 10 stage casing and hypomere
Axis hole position, be again provided with circular opening in the enlarged footing of motion bar 11 lower end, in hole, be provided with female thread,
Swelling bar 14 top is provided with external screw thread, just mates with the female thread in the hole of motion bar 11 lower end, both spiral shells
Stricture of vagina connects.Motion bar 11 top is cased with the second compression spring 17, in the collet 13 that the present embodiment uses
Side is provided with spring supporting tongue, and top is provided with bellend, and collet 13 is enclosed within motion bar 11 and the second compression
Outside spring 17, and the bottom of the second compression spring 17 is supported on spring supporting tongue, and activity is withstood on top
Bar 11 lower surface, compression spring 7 is enclosed within outside collet 13, is fixed with knife rest 12 bottom output shaft 10,
The bellend at collet 13 top is withstood on compression spring 7 top, and bottom support is at knife rest 12 upper surface.Institute
It is provided with projection outside the collet 13 stated, inside corresponding knife rest 12, is provided with slope the most inwardly
Degree, when collet 13 moves down the gradient inside touching knife rest 12, collet 13 tightens.
The operation principle of the present embodiment multifunctional saw quick change construction is:
With straight pin 4 as center of rotation, stirring quick change and pull button 1, quick change is pulled button 1 drive eccentric block and is rotated 2；
Due to the existence of eccentric throw, offset the elastic force of compression spring 7, motion bar 11 is down pressed, drive swelling bar
14 move down, and extrude the second compression spring 17, the elastic force driving spring chuck 13 of the second compression spring 17 to
Lower movement, the gradient of collet 13 bottom projection touching knife rest 12 inwall, at pressure effect collet
13 lower end diameter reduce；When collet 13 lower end diameter is less than the installing hole of saw blade 16, by saw blade 16
It is arranged on collet end；Back stir quick change and pull button 1, by collet under the effect of compression spring 7
13 upwards push up, and coordinate the two the second compression springs 17 motion bar 11 and swelling bar 14 to be carried on the whole, bullet
Spring chuck 13 end loses the pressure of the knife rest 12 inwall gradient and opens, and is fixed on knife rest 12 by saw blade 16,
Realize the quick change of saw blade 16.
Schematically being described this utility model and embodiment thereof above, this description does not has restricted,
Shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited thereto.Institute
Enlightened by it with those of ordinary skill in the art, in the case of creating objective without departing from this utility model, no
Design the frame mode similar to this technical scheme and embodiment through creative, this utility model all should be belonged to
Protection domain.
Claims (7)
1. a multifunctional saw quick change construction, including head capsule, knife rest and output device, it is characterised in that: its
Also including that fast replacing device, described output device are located in head capsule, output device includes fork, output shaft, deep
Ditch ball bearing, needle bearing, deep groove ball bearing is fixed on output shaft top outer by jump ring, and fork is located at defeated
Outside shaft middle part, output shaft bottom outside is provided with needle bearing；Described fast replacing device includes that quick change is pulled
Button, eccentric block, motion bar, collet, swelling bar, compression spring, quick change pulls button and eccentric block by circle
Pin is connected with head capsule top, and motion bar is located in output shaft, and top is with eccentric block against being connected, and bottom is with swollen
Tight bar is threaded, is cased with collet, is cased with compression spring outside collet outside swelling bar, described
Knife rest is located at bottom output shaft, and knife rest inwall is provided with the most inside gradient, corresponding collet
Outer surface be provided with projection.
A kind of multifunctional saw quick change construction the most according to claim 1, it is characterised in that: described is defeated
Shaft is the cylindrical structure of hollow, is divided into upper, middle and lower three sections, and output shaft epimere diameter is less than stage casing diameter, defeated
Shaft stage casing diameter is less than hypomere diameter, and output shaft epimere outer wall is additionally provided with jump ring mounting groove.
A kind of multifunctional saw quick change construction the most according to claim 1 and 2, it is characterised in that: described
The upper and lower two ends of deep groove ball bearing be equipped with jump ring, deep groove ball bearing is connected with output shaft by the jump ring of upper end,
It is connected with head capsule by the jump ring of lower end.
A kind of multifunctional saw quick change construction the most according to claim 1, it is characterised in that: described work
Lever bottom is provided with bellend, and the top of compression spring is close to be connected with the lower surface of motion bar bottom bellend,
The bottom of compression spring is close to be connected with the upper surface of knife rest.
A kind of multifunctional saw quick change construction the most according to claim 1, it is characterised in that: described is fast
Changing device also includes that the second compression spring, the second compression spring are arranged on outside swelling bar.
A kind of multifunctional saw quick change construction, it is characterised in that: described
Collet top be provided with bellend, collet inwall is provided with spring supporting tongue, compression spring top with
The bellend lower surface on collet top is close to connect, and the top of the second compression spring is tight with motion bar lower surface
Patch connects, and bottom is close to be connected with spring supporting tongue upper surface.
A kind of multifunctional saw quick change construction the most according to claim 1, it is characterised in that: described rolling
On the downside of needle bearing, head capsule is provided with sealing ring in the space of output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620301489.0U CN205551644U (en) | 2016-04-11 | 2016-04-11 | Multi -functional saw quick change structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620301489.0U CN205551644U (en) | 2016-04-11 | 2016-04-11 | Multi -functional saw quick change structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205551644U true CN205551644U (en) | 2016-09-07 |
Family
ID=56810583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620301489.0U Withdrawn - After Issue CN205551644U (en) | 2016-04-11 | 2016-04-11 | Multi -functional saw quick change structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205551644U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728846A (en) * | 2016-04-11 | 2016-07-06 | 浙江金美电动工具有限公司 | Quick changing structure for multifunctional saw and quick changing method |
| CN107309492A (en) * | 2017-08-08 | 2017-11-03 | 浙江金美电动工具有限公司 | A kind of multifunctional saw quick change construction and quick change method |
| CN114905465A (en) * | 2021-02-10 | 2022-08-16 | 苏州宝时得电动工具有限公司 | Fastening mechanism and power tool |
-
2016
- 2016-04-11 CN CN201620301489.0U patent/CN205551644U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728846A (en) * | 2016-04-11 | 2016-07-06 | 浙江金美电动工具有限公司 | Quick changing structure for multifunctional saw and quick changing method |
| CN107309492A (en) * | 2017-08-08 | 2017-11-03 | 浙江金美电动工具有限公司 | A kind of multifunctional saw quick change construction and quick change method |
| 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 |
| CN114905465A (en) * | 2021-02-10 | 2022-08-16 | 苏州宝时得电动工具有限公司 | Fastening mechanism and power tool |
| CN114905465B (en) * | 2021-02-10 | 2023-09-12 | 苏州宝时得电动工具有限公司 | Fastening mechanism and power tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20171215 |
|
| AV01 | Patent right actively abandoned |