CN205033171U - Adapter and swing power instrument - Google Patents
Adapter and swing power instrument Download PDFInfo
- Publication number
- CN205033171U CN205033171U CN201520673147.7U CN201520673147U CN205033171U CN 205033171 U CN205033171 U CN 205033171U CN 201520673147 U CN201520673147 U CN 201520673147U CN 205033171 U CN205033171 U CN 205033171U
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- Prior art keywords
- sleeve
- elastic sleeve
- working head
- adapter
- state
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- Expired - Fee Related
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- 230000033001 locomotion Effects 0.000 claims description 8
- 239000004579 marble Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to an adapter and swing power instrument, this adapter include elastic sleeve and rigidity sleeve, and whether and extent of contact through setting up the rigidity sleeve in elastic sleeve, elastic sleeve can change between first state and second state, works as when the sleeve is in first state, the second end is separable with the working head, works as when the sleeve was in the second state, second end and connecting hole butt makeed the sleeve fasten the working head. This swing power instrument includes this adapter. This adapter can be so that working head and more effective, safe being connected of swing power instrument.
Description
Technical Field
The utility model relates to a power tool, in particular to swing power tool and adapter.
Background
The working principle of the swing power tool is that the output shaft rotates around the axis of the output shaft to realize swing motion. The user can install the work head that has the connecting hole on the free end of output shaft, realizes different operating function through different work heads, and these work heads can be for straight saw bit, circular saw blade, triangle-shaped dull polish dish, shovel type scraper to realize like saw, cut, grind, scrape different work demands.
Generally, a swing power tool is specially provided with a working head to realize different working requirements. However, in some special cases, these specially configured work heads are not able to meet the operating conditions. Such as a circular saw blade specially provided for a swing power tool, is difficult to perform for cutting tiles because of its small diameter and strength. To this end, the user installs traditional, the diameter and the great circular saw blade of intensity on swing power tool, but the connecting hole of these circular saw blades does not match with swing power tool, and the user often connects circular saw blade and swing power tool through comparatively original clamping mode, may produce in the use not hard up or fracture, arouses the potential safety hazard easily.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide an adapter for connecting a working head to an output shaft of an oscillating power tool.
An adapter for mounting a work head having a connection aperture to an oscillating power tool, comprising: the elastic sleeve comprises a first end and a second end, the elastic sleeve is provided with a first through hole which axially penetrates through the first end and the second end, the first end can be connected with an output shaft of the swing power tool, the second end can be inserted into a connecting hole of the working head, the elastic sleeve can be switched between a first state and a second state, when the sleeve is in the first state, the second end can be separated from the working head, and when the sleeve is in the second state, the second end is abutted against the connecting hole, so that the sleeve fastens the working head; the rigid sleeve is provided with a second through hole which penetrates through the rigid sleeve along the axial direction, and the outer wall of the rigid sleeve can be in contact with the inner wall of the elastic sleeve, so that the elastic sleeve is expanded along the radial direction, and the elastic sleeve is in a second state.
In the adapter, the elastic sleeve can be switched between a first state and a second state, and when the rigid sleeve is separated from the elastic sleeve, the elastic sleeve is in the first state; when the rigid sleeve is contacted with the rigid sleeve, the elastic sleeve can be expanded in the radial direction, when the rigid sleeve is in a proper position, the elastic sleeve is in a second state, so that the second end of the elastic sleeve can be contacted with the connecting hole of the working head, the working head can be fastened in the radial direction, and the different expansion ranges of the elastic sleeve can be adapted to different connecting holes with different sizes on different working heads, so that the working head is more effectively and safely connected with the swing power tool.
In one embodiment, the elastic sleeve is provided with a through groove, the through groove communicates with the outer wall and the inner wall of the elastic sleeve, the through groove extends along the axial direction, and the through groove comprises an opening, and the opening is arranged at the second end. The elastic sleeve is provided with the through groove, so that the range of the elastic sleeve expanding in the radial direction is enlarged, and the range of the applicable working head is enlarged.
In one embodiment, the elastic sleeve is provided with at least two through grooves.
In one embodiment, the through grooves are uniformly arranged on the elastic sleeve by taking the axial direction as the center. These logical grooves of evenly distributed on elastic sleeve for when elastic sleeve expands, at each radial direction's expansion scope comparatively even, make adapter and working head combine closely more, promote fastening effect.
In one embodiment, the adaptor further includes a limiting block disposed on the outer circumference of the elastic sleeve and extending radially to limit the movement of the working head toward the first end.
In one embodiment, the limiting blocks are arranged along one circle of the outer periphery of the elastic sleeve.
In one embodiment, the first end defines a splined bore.
In one embodiment, a cross-sectional area of the first end parallel to the radial direction is smaller than a cross-sectional area of the second end parallel to the radial direction.
In one embodiment, the elastic sleeve has a trapezoidal shape in cross section in the axial direction.
In one embodiment, the working head is a marble machine saw blade.
A swing power tool has an output shaft capable of swinging about its own axis; the adapter further comprises the adapter, the first end of the elastic sleeve is connected with the output shaft, the second end of the elastic sleeve is inserted into the connecting hole of the working head, and the rigid sleeve is arranged inside the elastic sleeve.
Drawings
Fig. 1 is an exploded view of an embodiment of a swing power tool of the present invention;
FIG. 2 is a schematic structural view of the embodiment of the present invention illustrating the connection of the swing power tool to the working head;
fig. 3 is a schematic structural diagram of an adapter according to an embodiment of the present invention;
fig. 4 is a schematic top view of the adaptor according to the embodiment of the present invention.
Wherein,
100. swing power tool 101, shell 102, output shaft
103. Pressure plate 110, working head 111, connecting hole
200. Adaptor 210, elastic sleeve 211, first end
212. Second end 213, first through hole 214, through groove
215. Opening 216, splined hole 217, fixing hole
220. Rigid sleeve 221, second through hole 230, stop block
231. Communicating groove
Detailed Description
Referring to fig. 1, the present invention discloses a swing power tool 100. The oscillating power tool 100 includes a housing 101, a motor disposed in the housing 101, an eccentric transmission mechanism driven by the motor, and an output shaft 102 driven by the eccentric transmission mechanism and rotationally reciprocating about its axis. The output shaft 102 is driven by the motor to swing around its own axis under the torque transmission of the eccentric transmission mechanism. The output shaft 102 can transmit the swinging motion to the working head 110, so that the working head 110 also swings, and different operations can be realized according to different types of the working head 110. In the prior art, the free end of the output shaft 102 is directly connected with the connecting hole 111 of the working head 110, and the working head 110 is fastened by inserting the pressure plate 103 into the swing power tool 100 and connecting with the corresponding locking element. Since some working heads 110 are not specifically provided for the swing power tool 100, there is a possibility of loosening or breaking during operation, which greatly affects the safety of the swing power tool 100. Therefore, in the present embodiment, the output shaft 102 and the working head 110 can be connected to each other through the adapter 120 and the pressing plate 103. The adaptor 200 includes an elastic sleeve 210 and a rigid sleeve 220, wherein the elastic sleeve 210 has a certain elastic coefficient and can contract and expand within a certain range. The rigid sleeve 220 may be sleeved within the elastic sleeve 210 such that the elastic sleeve 210 may be transitioned between the first state and the second state. In the present embodiment, as shown in fig. 1, when the rigid sleeve 220 is separated from the elastic sleeve 210, the elastic sleeve 210 is in the first state, and the working head 110 can be separated from the elastic sleeve 210; referring to fig. 2, the rigid sleeve 220 is disposed in the elastic sleeve 210, such that when the elastic sleeve 210 expands and can fasten the working head 110, the elastic sleeve 210 is in the second state. Continuing now with reference to FIG. 2, FIG. 2 schematically illustrates the arrangement of the adaptor 120 when connecting the working head 110 to the oscillating power tool 100. The first end 211 of the elastic sleeve 210 is connected with the output shaft 102, when the output shaft 102 swings, the elastic sleeve 210 can be driven to rotate, the second end 212 of the elastic sleeve 210 can be inserted into the connecting hole 111 of the working head 110, the rigid sleeve 220 is sleeved inside the elastic sleeve 210, the rigid sleeve 220 can be in contact with the elastic sleeve 210, and the elastic sleeve 210 is enabled to expand outwards until the second end 212 of the elastic sleeve 210 is in contact with the connecting hole 111, at this time, the elastic sleeve 210 is in a second state, and therefore the working head 110 can be fastened in the radial direction. The elastic sleeve 210 is further provided with a limiting block 230, and the limiting block 230 is matched with the pressure plate 103 to limit the moving range of the working head 110 in the axial direction. Of course, the limitation of the moving range of the working head 110 in the axial direction can also be limited by providing a corresponding limit mechanism on the housing 101 or the output shaft 103 or by providing the elastic sleeve 210 itself. Preferably, the utility model discloses a swing power tool 100 is multifunctional machine, and working head 110 is the marble machine saw bit, because the circular saw bit that sets up for multifunctional machine specially can not be competent in the time of the cutting task to the higher body of being cut of hardness (like ceramic tile etc.), because marble machine saw bit has great diameter and higher intensity, can cut the ceramic tile that can relax at this multifunctional machine with marble machine saw bit setting through adapter 200. Of course, the swing power tool 100 may be other swing power tools such as a swing machine, and the working head 110 may be a straight saw blade, a circular saw blade, a triangular sanding disc, a shovel-type scraper, etc. for different purposes.
Referring to fig. 3, the elastic sleeve 210 includes a first through hole 213 penetrating along an axial direction (X-axis direction in fig. 3), a rigid sleeve 220 may be sleeved in the first through hole 213, an outer wall of the rigid sleeve 220 may contact an inner wall of the elastic sleeve 210, and after the rigid sleeve 220 contacts the inner wall, a force applied by the rigid sleeve 220 acts on the elastic sleeve 210, so that the elastic sleeve 210 may expand in a radial direction (perpendicular to the X-axis direction in fig. 3). The first end 211 of the elastic sleeve 210 can be matched with the output shaft 102, and the shape of the first end 211 matches with the shape of the output shaft 102, in this embodiment, please refer to fig. 4, the first end 211 is provided with a spline hole 216, and the output shaft 102 is a spline shaft matched with the output shaft, so that the elastic sleeve 210 and the output shaft 102 can be better and tightly connected. In this embodiment, the first end 211 may further have a plurality of fixing holes 217, the output shaft 102 is provided with corresponding fixing blocks, the fixing blocks may be inserted into the corresponding fixing holes 217, so that the elastic sleeve 210 and the output shaft 102 may be firmly connected, and the fixing holes 217 may be uniformly distributed on the first end 211 along the axial direction. The second end 212 of the elastic sleeve 210 can be inserted into the connection hole 111 of the working head 110, and the second end 212 can be tightly connected with the connection hole 111 by expansion, thereby achieving fastening of the working head 110 in the radial direction.
In this embodiment, in order to limit the axial movement of the working head 110 connected to the adaptor 200, the outer circumference of the elastic sleeve 210 is provided with a limit block 230, the limit block 230 extends in the radial direction, and the limit block 230 and the pressing plate 103 are matched with each other to limit the axial movement of the working head 110, so that the working head 110 is not easily loosened in the axial direction, and the safety is ensured. The stop block 230 may be disposed proximate the second end 212 according to the thickness of the working head 110, and the distance between the pressure plate 103 and the stop block 230 may be adjusted to accommodate working heads 110 of different thicknesses. In this embodiment, in order to better limit the movement of the working head 110 in the axial direction in all directions, the stop block 230 is disposed along the outer circumference of the elastic sleeve 210 by one turn, that is, the stop block 230 forms a ring-shaped stop block 230 connected end to end on the outer circumference of the elastic sleeve 210. Of course, the movement of the working head 110 in the axial direction may be limited in other ways as described above.
In the present embodiment, in order to provide the elastic sleeve 210 with a larger expansion range, a through slot 214 is formed on the elastic sleeve 210, the through slot 214 connects the inner wall and the outer wall of the elastic sleeve 210, the through slot 214 extends in the axial direction on the elastic sleeve 210, one end of the through slot 214 includes an opening 215, and the other end of the through slot 214 is closed. When the through groove 214 passes through the stopper 230, a communication groove 231 is also formed in the stopper 230, and the communication groove 231 is connected to the through groove 214. In the present embodiment, the elastic sleeve 210 may be provided with at least two through grooves 214, and in order to provide a more uniform expansion range of the elastic sleeve 210 in each radial direction, the through grooves 214 are uniformly arranged along the axial direction.
In the present embodiment, the cross section of the elastic sleeve 210 along the axial direction is trapezoidal, and the entire elastic sleeve 210 is a nearly truncated cone-shaped object. In the present embodiment, the cross-sectional area of the first end 211 is smaller than the cross-sectional area of the second end 212 for reasons of mounting simplicity and the like.
The rigid sleeve 220 is also provided with a second through hole 221 which penetrates through the rigid sleeve along the axial direction, and the pressing plate 103 can penetrate through the second through hole 221, so that the pressing plate 103 is inserted into the swing power tool, and a locking element in the swing power tool locks the pressing plate 103, thereby achieving the purpose of fixing the pressing plate. The rigid sleeve 220 is adapted to the shape and size of the elastic sleeve 210.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (11)
1. An adapter for mounting a work head having a connection aperture to a swing power tool, the adapter comprising:
the elastic sleeve comprises a first end and a second end, the elastic sleeve is provided with a first through hole which axially penetrates through the first end and the second end, the first end can be connected with an output shaft of the swing power tool, the second end can be inserted into a connecting hole of the working head, the elastic sleeve can be switched between a first state and a second state, when the sleeve is in the first state, the second end can be separated from the working head, and when the sleeve is in the second state, the second end is abutted against the connecting hole, so that the sleeve fastens the working head;
the rigid sleeve is provided with a second through hole which penetrates through the rigid sleeve along the axial direction, and the outer wall of the rigid sleeve can be in contact with the inner wall of the elastic sleeve, so that the elastic sleeve is expanded along the radial direction, and the elastic sleeve is in a second state.
2. The adapter according to claim 1, wherein the elastic sleeve defines a through slot that communicates between an outer wall and an inner wall of the elastic sleeve, the through slot extending in an axial direction, the through slot including an opening disposed at the second end.
3. The adapter of claim 2 wherein the elastomeric sleeve defines at least two through slots.
4. The adapter according to claim 3, wherein the through slots are uniformly arranged on the elastic sleeve centering on an axial direction.
5. The adaptor of claim 1 further comprising a stop disposed about the outer periphery of the resilient sleeve and extending radially to limit movement of the working head toward the first end.
6. The adapter according to claim 5, wherein the stop blocks are arranged along the outer circumference of the elastic sleeve.
7. The adapter of claim 1 wherein the first end defines a splined bore.
8. The adaptor of claim 1, wherein a cross-sectional area of the first end parallel to a radial direction is smaller than a cross-sectional area of the second end parallel to a radial direction.
9. The adapter according to claim 8 wherein the cross-section of the elastic sleeve in the axial direction is trapezoidal in shape.
10. The adaptor of claim 1 wherein the working head is a marble machine saw blade.
11. A swing power tool has an output shaft capable of swinging about its own axis; characterized in that the oscillating power tool further comprises an adaptor according to any one of claims 1 to 10, the first end of the elastic sleeve is connected to the output shaft, the second end of the elastic sleeve is inserted into the connecting hole of the working head, and the rigid sleeve is disposed inside the elastic sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673147.7U CN205033171U (en) | 2015-09-01 | 2015-09-01 | Adapter and swing power instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673147.7U CN205033171U (en) | 2015-09-01 | 2015-09-01 | Adapter and swing power instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205033171U true CN205033171U (en) | 2016-02-17 |
Family
ID=55292102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520673147.7U Expired - Fee Related CN205033171U (en) | 2015-09-01 | 2015-09-01 | Adapter and swing power instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205033171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109421030A (en) * | 2017-08-31 | 2019-03-05 | 苏州宝时得电动工具有限公司 | Work head, adapter and the swing-type power tool for setting work head, adapter respectively |
-
2015
- 2015-09-01 CN CN201520673147.7U patent/CN205033171U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109421030A (en) * | 2017-08-31 | 2019-03-05 | 苏州宝时得电动工具有限公司 | Work head, adapter and the swing-type power tool for setting work head, adapter respectively |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20200901 |