CN206105055U - Power tool and annex device - Google Patents
Power tool and annex device Download PDFInfo
- Publication number
- CN206105055U CN206105055U CN201621019627.2U CN201621019627U CN206105055U CN 206105055 U CN206105055 U CN 206105055U CN 201621019627 U CN201621019627 U CN 201621019627U CN 206105055 U CN206105055 U CN 206105055U
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- Prior art keywords
- cutter
- eccentric shaft
- power tool
- equal
- guide
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- 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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- 238000005520 cutting process Methods 0.000 claims abstract description 27
- 238000003754 machining Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 241001669679 Eleotris Species 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Milling Processes (AREA)
Abstract
The utility model provides a power tool, includes: the output shaft is around an axis rotation, prime mover, the drive output shaft, the eccentric shaft is around the axis revolution of output shaft rotation, the cutter, the rotatable eccentric shaft that is connected to, the guide makes cutter axis rotation around the eccentric shaft along with the eccentric shaft revolution time, the cutter has at least one cutting sword of keeping away from the eccentric shaft. The annex device includes eccentric shaft, cutter and guide. The utility model discloses a hole that has specific shape can be processed fast to power tool and annex device.
Description
Technical Field
The present invention relates to power tools and accessory devices, and more particularly to power tools and accessory devices having a rotatable output shaft.
Background
In the field of railway maintenance, the sleeper bolt is not easy to take out after failure. In order to facilitate the removal of the bolt, a hole with a certain shape is formed in the failed bolt, and then the failed bolt can be removed by a spanner. The tie bolts are made of a plastic material. The traditional mode of processing holes on sleeper bolts is a mode of thermally melting plastics, and metal products with certain shapes are used for contacting and pressing the bolts to force the plastics to be locally melted and deformed to form holes with special shapes.
The hot melting equipment is bulky and not easy to carry, and the hot melting equipment has higher temperature and is easy to scald.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a power tool or an accessory device which can rapidly process a hole with a specific shape.
In order to achieve the above object, the utility model adopts the following technical scheme:
a power tool, comprising: an output shaft that rotates about an axis; a prime mover driving the output shaft; the eccentric shaft revolves around the axis of the rotation of the output shaft; a cutter rotatably connected to the eccentric shaft; a guide member for rotating the cutter about the axis of the eccentric shaft while revolving with the eccentric shaft; the cutter has at least one cutting edge remote from the eccentric shaft.
Further, the guide is formed with an inner gear ring; the cutter is connected with or formed with an external gear matched with the internal gear ring.
Furthermore, the ratio of the pitch circle radius of the inner gear ring to the pitch circle radius of the outer gear ring is more than or equal to 1 and less than or equal to 5; the ratio of the maximum size of the cutting edge of the cutter to the axis of the eccentric shaft to the pitch circle radius of the external gear is more than or equal to 0.2 and less than or equal to 4.
Further, the ratio of the pitch circle radius of the ring gear to the pitch circle radius of the external gear is equal to or greater than 1 and equal to or less than 5/3; the ratio of the maximum size of the cutting edge of the cutter to the axis of the eccentric shaft to the pitch circle radius of the external gear is more than or equal to 2 and less than or equal to 4.
Furthermore, the ratio of the pitch circle radius of the inner gear ring to the pitch circle radius of the outer gear ring is more than or equal to 3 and less than or equal to 5; the ratio of the maximum size of the cutting edge of the cutter to the axis of the eccentric shaft to the pitch circle radius of the external gear is more than or equal to 0.2 and less than or equal to 0.6.
Furthermore, the pitch circle radius of the external gear is more than or equal to 4.8mm and less than or equal to 8 mm.
Furthermore, the pitch circle radius of the inner gear ring is greater than or equal to 6.4mm and less than or equal to 10.6 mm.
Further, the maximum size of the cutting edge of the cutter from the axis of the eccentric shaft is more than or equal to 12mm and less than or equal to 20 mm.
Further, the power tool further includes: the connecting shaft is connected with the output shaft and the eccentric shaft; the axis of the connecting shaft coincides with the axis of the output shaft.
Further, one end of the connecting shaft is connected to the output shaft, and the other end is formed with a connecting hole for connecting the eccentric shaft.
Further, the guide is fixed relative to the prime mover.
Further, the power tool further includes: the guide centering assembly guides the movement direction of the cutter; the cutter is positioned between the guide centering component and the output shaft.
Further, the power tool further includes: a holder that holds a relative position in a circumferential direction of the object to be processed and the guide; the bracket is formed with a fitting hole through which the guide passes.
Furthermore, the side wall of the assembly hole is provided with a first limiting surface; the guide piece is provided with a second limiting surface; the first limiting surface and the second limiting surface are matched to limit the guide piece to rotate relative to the support in the circumferential direction.
Further, the prime mover is an electric motor.
Further, the power tool further includes: a handle assembly for holding by a user; a housing that houses or secures the prime mover; the housing forms or is connected to a handle assembly.
Further, the handle assembly is formed with a first grip portion and a second grip portion for gripping by a user.
Further, the power tool further includes: and a depth control device for controlling the travel distance of the cutter.
Further, the power tool further includes: and the guide ruler is used for guiding the advancing direction of the cutter.
Further, the power tool further includes: and the lighting device is used for lighting.
Further, the output shaft can rotate in the forward and reverse directions.
Further, the power tool has a locked-rotor protection function.
Further, the power tool includes a removable battery pack; the battery pack supplies power to the power tool.
Further, the cutter is detachably connected to the eccentric shaft.
Further, the power tool also comprises a clamping device for rapidly clamping the cutter.
An accessory device adapted for use with a power tool having a rotating output shaft, comprising: the eccentric shaft revolves around the axis of the rotation of the output shaft; a cutter rotatably connected to the eccentric shaft; a guide member for rotating the cutter about the axis of the eccentric shaft while revolving with the eccentric shaft; the cutter has at least one cutting edge remote from the eccentric shaft.
Further, the guide is formed with an inner gear ring; the cutter comprises an outer gear matched with the inner gear ring.
Furthermore, the ratio of the pitch circle radius of the inner gear ring to the pitch circle radius of the outer gear ring is more than or equal to 1 and less than or equal to 5; the ratio of the maximum size of the cutting edge of the cutter to the axis of the eccentric shaft to the pitch circle radius of the external gear is more than or equal to 0.2 and less than or equal to 4.
Further, the ratio of the pitch circle radius of the ring gear to the pitch circle radius of the external gear is equal to or greater than 1 and equal to or less than 5/3;
the ratio of the maximum size of the cutting edge of the cutter to the axis of the eccentric shaft to the pitch circle radius of the external gear is more than or equal to 2 and less than or equal to 4.
Furthermore, the ratio of the pitch circle radius of the inner gear ring to the pitch circle radius of the outer gear ring is more than or equal to 3 and less than or equal to 5;
the ratio of the maximum size of the cutting edge of the cutter to the axis of the eccentric shaft to the pitch circle radius of the external gear is more than or equal to 0.2 and less than or equal to 0.6.
Furthermore, the pitch circle radius of the external gear is more than or equal to 4.8mm and less than or equal to 8 mm.
Furthermore, the pitch circle radius of the inner gear ring is greater than or equal to 6.4mm and less than or equal to 10.6 mm.
Further, the maximum size of the cutting edge of the cutter from the axis of the eccentric shaft is more than or equal to 12mm and less than or equal to 20 mm.
Further, the accessory device further includes: the connecting shaft is connected with the output shaft and the eccentric shaft; the axis of the connecting shaft coincides with the axis of the output shaft.
Further, one end of the connecting shaft is connected to the output shaft, and the other end is formed with a connecting hole for connecting the eccentric shaft.
Further, the guide is fixed relative to the prime mover.
Further, the accessory device further includes: the guide centering assembly guides the movement direction of the cutter; the cutter is positioned between the guide centering component and the output shaft.
The utility model discloses an useful part lies in that the cutter can move the processing according to specific orbit and have the hole of specific shape.
Drawings
FIG. 1 is a schematic view of a power tool as an embodiment;
FIG. 2 is a schematic plan view of the power tool of FIG. 1;
FIG. 3 is a schematic view of the accessory device of FIG. 1;
FIG. 4 is a cross-sectional view of the accessory device of FIG. 3;
FIG. 5 is an exploded view of the accessory device of FIG. 3;
FIG. 6 is a schematic illustration of the power tool of FIG. 1 in an operational state;
FIG. 7 is a schematic view of the bracket of FIG. 6 mated with an accessory device;
FIG. 8 is a schematic view of the tool of the attachment device of FIG. 6 machining a work piece;
FIG. 9 is another schematic view of the tool of the attachment device of FIG. 6 being used to machine a work piece.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the power tool 200 includes a prime mover, an output shaft 210, a housing 220, a handle assembly 230, and the accessory device 100.
The prime mover drives the output shaft 210 to rotate about an axis. The housing 220 houses or secures the prime mover. The prime mover may be an electric motor powered by electric power, an internal combustion engine powered by combustion of fuel, a pneumatic motor or a hydraulic motor powered by circulation of fluid. Specifically, the prime mover is a motor, which may be an ac motor or a dc motor. When the prime mover is a dc motor, in particular, the power tool 200 also includes a removable battery pack for powering the prime mover. As an embodiment, the motor may be driven by either ac or dc power. The handle assembly 230 is for gripping by a user. The user may hold the handle assembly 230 in one or both hands. Specifically, the handle assembly 230 is formed with a first grip portion 240 and a second grip portion 250 for gripping by a user. The user holds with both hands to operate the power tool 200. The handle assembly 230 may be configured as a primary handle and a secondary handle, as well as a T-handle or other suitable two-handed gripping arrangement. In one particular form, the handle assembly 230 is provided with a control switch or control trigger for controlling the power tool 200, such that a user can control the power tool 200 while holding the handle assembly 230. The output shaft 210 is capable of forward and reverse rotation. The power tool 200 has a locked-rotor protection function. As an embodiment, when the output shaft 210 of the power tool 200 encounters a large load to cause a stall, the output shaft 210 may shift the rotation direction, thereby achieving overcoming the effect of the stall. A mechanical structure may be employed to change the direction of rotation of the output shaft 210. In addition, when the prime mover is a motor, the direction of the current flowing through the motor can be changed to change the direction of the rotation of the motor shaft, so as to change the direction of the rotation of the output shaft 210.
As an embodiment, the power tool 200 is provided with an illumination device for illumination. It can be used for illuminating the object to be processed for convenient night work. It can also be used as a flashlight. The lighting device may be powered by a battery pack or may be powered by self-generation of the power tool 200.
As an embodiment, the power tool 200 is provided with a hook, which a user can hang on, for example, a belt, for portability; the power tool 200 may also be suspended for dust storage.
In one embodiment, the power tool 200 is provided with a cooling unit that can cool the prime mover and also the accessory device 100.
The attachment device 100 is used to machine a slot or hole having a particular shape. As shown in fig. 3 to 5, the accessory device 100 includes: a cutter 10, an eccentric shaft 20 and a guide 30.
The cutter 10 is detachably connected to the eccentric shaft 20. The tool 10 may be formed in a variety of sizes, such as a variety of different sizes and shapes, to meet the needs of the user for machining different holes. In one embodiment, the tool 10 has three cutting edges, which are evenly distributed in the circumferential direction. The eccentric shaft 20 revolves around the axis of rotation of the output shaft 210. The tool 10 is rotatably connected to an eccentric shaft 20. The knife 10 has at least one cutting edge remote from the eccentric shaft 20. The guide 30 serves to rotate the cutter 10 about the axis of the eccentric shaft 20 while revolving with the eccentric shaft 20. The guide 30 is fixed to the housing 220. In one embodiment, the power tool 200 is provided with a quick-attach device for attaching the accessory device 100, and the accessory device 100 can be quickly attached to or detached from the housing 220. Specifically, the guide 30 can be quickly mounted to the housing 220 and also quickly separated from the housing 220. As another embodiment, the guide 30 may also be integrally formed with the housing 220, i.e., the guide 30 is a part of the housing 220.
The accessory device 100 also includes a connecting shaft 40. The connecting shaft 40 connects the output shaft 210 and the eccentric shaft 20. The connecting shaft 40 is driven to rotate by the output shaft 210. The connecting shaft 40 and the eccentric shaft 20 rotate synchronously. The eccentric shaft 20 connects the cutter 10 and the connecting shaft 40. Specifically, one end of the connecting shaft 40 is formed with a connecting hole 41, and the center of the connecting hole 41 is deviated from the axis of the connecting shaft 40, thereby realizing an eccentric transmission structure. One end of the eccentric shaft 20 is inserted into the connection hole 41 so that the connection shaft 40 is integrated with the eccentric shaft 20. As another embodiment, the eccentric shaft 20 may be integrally formed with the connecting shaft 40 as a single body.
The guide 30 is formed with an inner gear ring 31. The outer gear 50 is fixed to the cutter 10. The external gear 50 can rotate about the axis of the eccentric shaft 20. The axis of the external gear 50 coincides with the axis of the eccentric shaft 20, that is, the external gear 50 rotates with respect to the axis of the eccentric shaft 20. The external gear 50 is engaged with the ring gear 31. The cutter 10 is fixed to the outer gear 50 to rotate in synchronization with the outer gear 50. Specifically, as an embodiment, the tool 10 is fixed to the external gear 50 by the tool holder 60, and the tool 10, the tool holder 60, and the external gear 50 rotate in synchronization. As another embodiment, the tool holder 60 may be integrally formed with the external gear 50 or the tool 10, i.e., a separate tool holder 60 is not provided; or the three are integrally formed.
Specifically, the eccentric shaft 20 is externally fitted with a first bearing 71, and the external gear 50 is fixed to the first bearing 71, thereby achieving free rotation of the external gear 50 with respect to the eccentric shaft 20. The eccentric shaft 20 is formed with a stepped portion 21, the second bearing 72 is fixed to the stepped portion 21, the first bearing 71 and the second bearing 72 are provided with a spacer member 70 therebetween, and a force applied by a user is applied to the first bearing 71, the spacer member 70, the second bearing 72 and the second bearing 72 through the stepped portion 21 of the eccentric shaft 20 during a machining process and is finally transmitted to the tool 10.
The ratio of the pitch circle radius of the ring gear 31 to the pitch circle radius of the outer gear 50 is greater than or equal to 1 and less than or equal to 5; the ratio of the maximum dimension of the cutting edge of the cutter 10 from the axis of the eccentric shaft 20 to the pitch circle radius of the external gear 50 is 0.2 or more and 4 or less.
Further, the ratio of the pitch circle radius of the ring gear 31 to the pitch circle radius of the external gear 50 is equal to or greater than 1 and equal to or less than 5/3; the ratio of the maximum dimension of the cutting edge of the cutter 10 from the axis of the eccentric shaft 20 to the pitch circle radius of the external gear 50 is 2 or more and 4 or less. In one embodiment, the ratio of the pitch circle radius of the ring gear 31 to the pitch circle radius of the external gear 50 is 4/3; the ratio of the maximum dimension of the cutting edge of the cutter 10 from the axis of the eccentric shaft 20 to the pitch circle radius of the external gear 50 is 2.5 or 3.5.
The ratio of the pitch circle radius of the ring gear 31 to the pitch circle radius of the outer gear 50 may be 3 or more and 5 or less; the ratio of the maximum dimension of the cutting edge of the cutter 10 from the axis of the eccentric shaft 20 to the pitch circle radius of the external gear 50 is 0.2 or more and 0.6 or less. In one embodiment, the ratio of the pitch circle radius of the ring gear 31 to the pitch circle radius of the external gear 50 is 4, and the ratio of the maximum dimension of the cutting edge of the cutter 10 from the axis of the eccentric shaft 20 to the pitch circle radius of the external gear 50 is 1.4.
The side length of the square is more than or equal to 20mm and less than or equal to 32 mm. This dimension is more common for a railroad to open a square hole on a failed bolt. This dimension is set so that the pitch circle radius of the external gear 50 is not less than 4.8mm and not more than 8 mm. The pitch circle radius of the inner gear ring 31 is more than or equal to 6.4mm and less than or equal to 10.6 mm. The maximum dimension of the cutting edge of the cutter 10 from the axis of the eccentric shaft 20 is greater than or equal to 12mm and less than or equal to 20 mm. Further, the pitch circle radius of the external gear 50 is 7.2mm, the pitch circle radius of the internal gear ring 31 is 9.6mm, and the maximum size of the cutting edge of the cutter 10 from the axis of the eccentric shaft is 18 mm.
The pitch circle radius of the ring gear 31, the pitch circle radius of the external gear 50, and the size and position of the cutter 10, which are set according to the size, can machine a specific square hole shape as shown in fig. 8 and 9. Holes of different shapes, such as a triangle, a hexagon, etc., can be machined by adjusting the pitch circle radius of the ring gear 31, the pitch circle radius of the external gear 50, and the radius of the cutter 10.
As shown in fig. 3 to 5, a guide centering assembly 80 may be further provided in order to achieve a stable straight cutting path. The guide centering assembly 80 guides the direction of movement of the tool 10 so that it can follow a straight path. It can also be said that it advances in the axial direction of the output shaft 210. The guide centering assembly 80 is connected to the eccentric shaft 20. As an embodiment, the guide centering assembly 80 includes a guide housing 81 and a guide shaft 82. A guide shaft 82 is located within the guide housing 81, the guide shaft 82 being connected to the eccentric shaft 20, specifically, the guide shaft 82 being connected to the eccentric shaft 20. The guide shaft 82 is also provided with an eccentric structure so that the axis of the guide shaft 82 can coincide with the axis of the connecting shaft 40. The guide shaft 82 may be integrated with the eccentric shaft 20. As another embodiment, the guide shaft 82 may be used without eccentricity, that is, the axis of the guide shaft 82 coincides with the axis of the eccentric shaft 20. The guide housing 81 has at least one guide surface, specifically, the guide surface is a cylindrical surface, that is, the outer circumferential surface of the guide housing 81 is a cylindrical surface.
To achieve a stable straight cutting path when the guide centering assembly 80 is not employed, the power tool 200 is provided as a table-type tool, such as a bench drill. The work piece is fixed to the table type tool.
In one embodiment, the power tool 200 is a handheld tool, which has the advantage of being portable, and the stand 90 is used to fix the relative positions of the power tool 200 and the workpiece 300, as shown in fig. 6 and 7. The holder 90 is capable of maintaining the relative positions of the power tool 200 and the work piece 300 in the radial direction and the circumferential direction. Specifically, the bracket 90 is formed with a fitting hole 91 through which the guide 30 passes. The side wall of the fitting hole 91 has a first stopper surface 92. The guide member 30 is formed with a second stopper surface 32, and the first stopper surface 92 and the second stopper surface 32 cooperate to restrict the rotation of the guide member 30 in the circumferential direction with respect to the bracket 90. More specifically, the shape of the fitting hole 91 matches the shape of the guide 30. Clamping rods 93 are arranged on two sides of the bracket 90 and used for clamping a workpiece.
As another embodiment, the accessory device 100 is included as part of the power tool 200. I.e., as a whole with the accessory device 100, the power tool 200 is capable of machining specially shaped holes. As another example, the accessory device 100 may be adapted to accommodate a variety of different power tools 200 as a stand-alone accessory.
Fig. 8 and 9 are schematic views of the tool 10 machining a directional hole in a workpiece 300. The broken line in the figure is the movement path of the tool 10. In the figure, the square is a square hole which is processed and formed. Fig. 8 and 9 are schematic views of the movement of the tool 10 to different positions, respectively. The square hole can be machined by the cutter 10 rotating while revolving along the dotted line moving track.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (10)
1. A power tool, comprising:
an output shaft that rotates about an axis;
a prime mover driving the output shaft;
the eccentric shaft revolves around the axis of the rotation of the output shaft;
a cutter rotatably connected to the eccentric shaft;
a guide for rotating the cutter about an axis of the eccentric shaft while revolving with the eccentric shaft;
wherein,
the knife has at least one cutting edge remote from the eccentric shaft.
2. The power tool of claim 1, wherein:
the guide member is formed with an inner gear ring;
the cutter is connected with or formed with an external gear matched with the inner gear ring.
3. The power tool of claim 2, wherein:
the ratio of the pitch circle radius of the inner gear ring to the pitch circle radius of the outer gear ring is more than or equal to 1 and less than or equal to 5;
the ratio of the maximum size of the cutting edge of the cutter from the axis of the eccentric shaft to the pitch circle radius of the external gear is more than or equal to 0.2 and less than or equal to 4.
4. The power tool of claim 1, wherein:
the power tool further includes:
the guide centering assembly guides the movement direction of the cutter;
the cutter is located between the guide centering assembly and the output shaft.
5. The power tool of claim 1, wherein:
the power tool further includes:
a holder that holds a relative position in a circumferential direction of the object to be processed and the guide;
the bracket is formed with a fitting hole through which the guide passes.
6. An accessory device adapted for use with a power tool having a rotatable output shaft, comprising:
the eccentric shaft revolves around the axis of the rotation of the output shaft;
a cutter rotatably connected to the eccentric shaft;
a guide for rotating the cutter about an axis of the eccentric shaft while revolving with the eccentric shaft;
wherein,
the knife has at least one cutting edge remote from the eccentric shaft.
7. The accessory device of claim 6 adapted for use with a power tool having a rotating output shaft, wherein:
the guide member is formed with an inner gear ring;
the cutter comprises an outer gear matched with the inner gear ring.
8. The accessory device of claim 7 adapted for use with a power tool having a rotating output shaft, wherein:
the ratio of the pitch circle radius of the inner gear ring to the pitch circle radius of the outer gear ring is more than or equal to 1 and less than or equal to 5;
the ratio of the maximum size of the cutting edge of the cutter from the axis of the eccentric shaft to the pitch circle radius of the external gear is more than or equal to 0.2 and less than or equal to 4.
9. The accessory device of claim 7 adapted for use with a power tool having a rotating output shaft, wherein:
the maximum size of the cutting edge of the cutter from the axis of the eccentric shaft is greater than or equal to 12mm and less than or equal to 20 mm.
10. The accessory device of claim 6 adapted for use with a power tool having a rotating output shaft, wherein:
the accessory device further includes:
the guide centering assembly guides the movement direction of the cutter;
the cutter is located between the guide centering assembly and the output shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610097481 | 2016-02-22 | ||
| CN2016100974811 | 2016-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206105055U true CN206105055U (en) | 2017-04-19 |
Family
ID=58516216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621019627.2U Expired - Fee Related CN206105055U (en) | 2016-02-22 | 2016-08-31 | Power tool and annex device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206105055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944794A (en) * | 2017-08-04 | 2020-03-31 | 苏州宝时得电动工具有限公司 | Sanding tool and main body part and sanding part thereof |
-
2016
- 2016-08-31 CN CN201621019627.2U patent/CN206105055U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944794A (en) * | 2017-08-04 | 2020-03-31 | 苏州宝时得电动工具有限公司 | Sanding tool and main body part and sanding part thereof |
| CN110944794B (en) * | 2017-08-04 | 2022-07-12 | 苏州宝时得电动工具有限公司 | Sanding tool and main body part and sanding part thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170419 Termination date: 20210831 |