CN204295653U - The self-locking device of electric tool output shaft - Google Patents
The self-locking device of electric tool output shaft Download PDFInfo
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- CN204295653U CN204295653U CN201420649351.0U CN201420649351U CN204295653U CN 204295653 U CN204295653 U CN 204295653U CN 201420649351 U CN201420649351 U CN 201420649351U CN 204295653 U CN204295653 U CN 204295653U
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- main shaft
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- electric tool
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Abstract
The utility model relates to electric tool technical field, refer in particular to the self-locking device of electric tool output shaft, it includes main shaft, PTO drive disk, stopper ring, multiple self-lock pin, PTO drive disk upper surface is convexly equipped with multiple drive block, the bottom of main shaft is plugged in PTO drive disk inside, multiple drive surface is provided with inside PTO drive disk, circumferential exterior surface bottom main shaft is provided with multiple by driving plane, multiple self-locking plane, but main shaft is driven plane to contact to realize Power output function by drive surface and PTO drive disk, auto-lock function can be realized by contact corresponding with self-lock pin of self-locking plane, the utility model by the function i ntegration of traditional scotch on main shaft, self-locking plane is utilized to replace scotch, eliminate the structure of scotch, simplify the structure, more compact structure, reduce volume, easy to assembly, cost-saving, and stable drive is smooth and easy, longer service life.
Description
Technical field
The utility model relates to electric tool technical field, refers in particular to the self-locking device of electric tool output shaft.
Background technology
Rotating electric tool, except using as electric drill, also can be used as electric screw driver, as long as there is suitable chuck can for clamping drill bit or screwdriver, optional by electronic or manual different purposes.Existing electric tool is rotated via directly driving fixture after reducing gear by motor, if electric tool is used as electric screw driver, the cutter of motor and clamp end is direct-drive, cutter end is directly used for rotation screw time, output shaft for jockey causes the active force of reversion, motor along with rotation, therefore cannot directly can be used as hand-operated tools.Therefore, at the output shaft installing locking mechanism of reducing gear, make the motor of electric tool can forward outputting power, to drive output shaft rotation by this locking mechanism; When this output shaft counter-rotating exerts a force, namely this locking mechanism locks this output shaft makes this output shaft rotate, and the locking of this output shaft can be used as hand-operated tools like this.
The patent No. be 200520009023.5 Chinese patent disclose the locking device of electric tool output shaft, comprise: main shaft, scotch, PTO drive disk, stopper ring, multiple lock pin, main shaft interts in scotch and PTO drive disk, main shaft is connected can realizes Power output with the fin in PTO drive disk, main shaft is connected by scotch can realizes lock function with lock pin, but the main shaft of this locking device with need between lock pin to be connected by scotch, complex structure, assembling trouble, transmission not steadily, have some setbacks, cost is high.
Utility model content
The purpose of this utility model be exactly for prior art exist deficiency and provide a kind of structure simple, easy to assembly, the self-locking device of the electric tool output shaft that stable drive is smooth and easy, cost-saving.
To achieve these goals, the technical solution adopted in the utility model is: the self-locking device of electric tool output shaft, it includes main shaft, PTO drive disk, stopper ring, multiple self-lock pin, PTO drive disk upper surface is convexly equipped with the equally distributed drive block in multiple circumferentially directions, the bottom of main shaft is plugged in PTO drive disk inside, stopper ring is set in outside multiple drive block, multiple self-lock pin is plugged on interval between multiple drive block and respectively between stopper ring and main shaft, multiple drive surface corresponding with each drive block is respectively provided with inside PTO drive disk, circumferential exterior surface bottom main shaft be provided with multiple respectively corresponding with each drive surface contact driven plane, multiple self-locking plane of contacting corresponding to each self-lock pin respectively, multiple driving between plane and multiple self-locking plane is distributed in the circumferential exterior surface bottom main shaft along main shaft circumference uniform intervals.
Described drive surface is the V-type angle faces structure protruding be to the inside made up of two vertical plane at an angle to each other.
Described drive block, self-lock pin, drive surface, by driving plane and self-locking plane be 3.
Medial surface and the lateral surface of described drive block are arcwall face.
The maximum gauge enclosing the circle of formation between described multiple drive block is mutually less than the external diameter of PTO drive disk.
Described multiple drive surface is corresponding to be respectively arranged on the medial surface of each drive block.
Preferably, the axle center place of described PTO drive disk offers axis hole, and multiple drive surface is evenly arranged on axis hole medial surface along axis hole circumference.
Preferably, described each drive surface extends upwardly on the medial surface of respective drive block respectively.
The utility model beneficial effect is: the self-locking device of the electric tool output shaft that the utility model provides, it includes main shaft, PTO drive disk, stopper ring, multiple self-lock pin, PTO drive disk upper surface is convexly equipped with multiple drive block, the bottom of main shaft is plugged in PTO drive disk inside, stopper ring is set in outside multiple drive block, multiple self-lock pin is plugged on interval between multiple drive block and respectively between stopper ring and main shaft, multiple drive surface corresponding with each drive block is respectively provided with inside PTO drive disk, circumferential exterior surface bottom main shaft be provided with multiple respectively corresponding with each drive surface contact driven plane, multiple self-locking plane of contacting corresponding to each self-lock pin respectively, multiple driving between plane and multiple self-locking plane is distributed in the circumferential exterior surface bottom main shaft along main shaft circumference uniform intervals, but main shaft is driven plane to contact to realize Power output function by drive surface and PTO drive disk, auto-lock function can be realized by contact corresponding with self-lock pin of self-locking plane, the utility model by the function i ntegration of traditional scotch on main shaft, self-locking plane is utilized to replace scotch, eliminate the structure of scotch, simplify the structure, more compact structure, reduce volume, easy to assembly, cost-saving, and stable drive is smooth and easy, longer service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is decomposing schematic representation of the present utility model.
Fig. 3 is the cut-away view that the utility model conceals main shaft.
Fig. 4 is the structural representation of the utility model PTO drive disk.
Fig. 5 is the structural representation of the PTO drive disk of another embodiment of the utility model.
Fig. 6 is the structural representation of the PTO drive disk of the another embodiment of the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, see shown in Fig. 1 ~ 4, the utility model includes main shaft 1, PTO drive disk 2, stopper ring 3, multiple self-lock pin 4, PTO drive disk 2 upper surface is convexly equipped with the equally distributed drive block 21 in multiple circumferentially direction, the bottom of main shaft 1 is plugged in PTO drive disk 2 inside, stopper ring 3 is set in outside multiple drive block 21, multiple self-lock pin 4 is plugged on interval between multiple drive block 21 and respectively between stopper ring 3 and main shaft 1, multiple drive surface 22 corresponding with each drive block 21 is respectively provided with inside PTO drive disk 2, circumferential exterior surface bottom main shaft 1 be provided with multiple respectively corresponding with each drive surface 22 contact driven plane 12, multiple self-locking plane 11 of contacting corresponding to each self-lock pin 4 respectively, multiple driving is distributed in the circumferential exterior surface bottom main shaft 1 along the circumferential uniform intervals of main shaft 1 between plane 12 and multiple self-locking plane 11, identical with the quantity of self-locking plane 11 by driving plane 12.Drive block 21, self-lock pin 4, drive surface 22, be 3 by driving plane 12 and self-locking plane 11, can certainly the quantity such as 2,4,5,8.
Drive surface 22 is the V-type angle faces structure protruding be to the inside made up of two vertical plane at an angle to each other, has better motive force to the plane 12 that driven of main shaft 1.Medial surface and the lateral surface of drive block 21 are arcwall face, can coordinate with main shaft 1, stopper ring 3 better.
The maximum gauge enclosing the circle of formation between multiple drive block 21 is mutually less than the external diameter of PTO drive disk 2, makes stopper ring 3 be set in multiple outer rear flank of drive block 21 and can be pressed on the upper surface of PTO drive disk 2.
The axle center place of PTO drive disk 2 offers axis hole 23, and improve the intensity of PTO drive disk 2 inside, multiple drive surface 22 is evenly arranged on axis hole 23 medial surface along axis hole 23 circumference, and each drive surface 22 extends upwardly on the medial surface of respective drive block 21 respectively.
But main shaft 1 of the present utility model by drive surface 22 and PTO drive disk 2 driven plane 12 to contact to realize Power output function, by self-locking plane 11, corresponding contacting can realize auto-lock function with self-lock pin 4, the utility model by the function i ntegration of traditional scotch on main shaft 1, utilize self-locking plane 11 to replace scotch, eliminate the structure of scotch, simplify the structure, more compact structure, reduce volume, easy to assembly, cost-saving, and stable drive is smooth and easy, longer service life.
As another embodiment of the present utility model, as shown in Figure 5, with a upper embodiment unlike, the axle center place of PTO drive disk 2 offers axis hole 23, multiple drive surface 22 is evenly arranged on axis hole 23 medial surface along axis hole 23 circumference, and drive surface 22 does not extend on the medial surface of drive block 21.
As another embodiment of the present utility model, as shown in Figure 6, is arranged on the medial surface of each drive block 21 unlike, multiple drive surface 22 is corresponding respectively with a upper embodiment, and drive surface 22 does not extend on axis hole 23 medial surface.
Certainly, the above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (8)
1. the self-locking device of electric tool output shaft, include main shaft (1), PTO drive disk (2), stopper ring (3), multiple self-lock pin (4), PTO drive disk (2) upper surface is convexly equipped with the equally distributed drive block in multiple circumferentially directions (21), the bottom of main shaft (1) is plugged in PTO drive disk (2) inside, stopper ring (3) is set in multiple drive block (21) outside, it is characterized in that: described multiple self-lock pin (4) is plugged on the interval between multiple drive block (21) respectively and is positioned between stopper ring (3) and main shaft (1), PTO drive disk (2) inner side is provided with multiple drive surface (22) corresponding with each drive block (21) respectively, main shaft (1) bottom circumferential exterior surface be provided with multiple respectively corresponding with each drive surface (22) contact driven plane (12), multiple self-locking plane (11) of contacting corresponding to each self-lock pin (4) respectively, multiple driving between plane (12) and multiple self-locking plane (11) is distributed in the circumferential exterior surface of main shaft (1) bottom along main shaft (1) circumferential uniform intervals.
2. the self-locking device of electric tool output shaft according to claim 1, is characterized in that: the to the inside protruding V-type angle faces structure of described drive surface (22) for being made up of two vertical plane at an angle to each other.
3. the self-locking device of electric tool output shaft according to claim 1, is characterized in that: described drive block (21), self-lock pin (4), drive surface (22), by driving plane (12) and self-locking plane (11) be 3.
4. the self-locking device of electric tool output shaft according to claim 1, is characterized in that: medial surface and the lateral surface of described drive block (21) are arcwall face.
5. the self-locking device of electric tool output shaft according to claim 1, is characterized in that: the maximum gauge enclosing the circle of formation between described multiple drive block (21) is mutually less than the external diameter of PTO drive disk (2).
6. the self-locking device of the electric tool output shaft according to claim 1 ~ 5 any one, is characterized in that: described multiple drive surface (22) respectively correspondence is arranged on the medial surface of each drive block (21).
7. the self-locking device of the electric tool output shaft according to claim 1 ~ 5 any one, it is characterized in that: the axle center place of described PTO drive disk (2) offers axis hole (23), and multiple drive surface (22) is evenly arranged on axis hole (23) medial surface along axis hole (23) circumference.
8. the self-locking device of electric tool output shaft according to claim 7, is characterized in that: described each drive surface (22) extends upwardly on the medial surface of respective drive block (21) respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649351.0U CN204295653U (en) | 2014-11-04 | 2014-11-04 | The self-locking device of electric tool output shaft |
| TW104217639U TWM527370U (en) | 2014-11-04 | 2015-11-04 | Self-locking device of powered tool output shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649351.0U CN204295653U (en) | 2014-11-04 | 2014-11-04 | The self-locking device of electric tool output shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204295653U true CN204295653U (en) | 2015-04-29 |
Family
ID=53101231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420649351.0U Active CN204295653U (en) | 2014-11-04 | 2014-11-04 | The self-locking device of electric tool output shaft |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204295653U (en) |
| TW (1) | TWM527370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378071A (en) * | 2017-09-15 | 2017-11-24 | 锐奇控股股份有限公司 | Main shaft self-locking mechanism and the drill kind tool for configuring the mechanism |
-
2014
- 2014-11-04 CN CN201420649351.0U patent/CN204295653U/en active Active
-
2015
- 2015-11-04 TW TW104217639U patent/TWM527370U/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378071A (en) * | 2017-09-15 | 2017-11-24 | 锐奇控股股份有限公司 | Main shaft self-locking mechanism and the drill kind tool for configuring the mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM527370U (en) | 2016-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |