CN102729225A - Quick clamping mechanism - Google Patents
Quick clamping mechanism Download PDFInfo
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- CN102729225A CN102729225A CN2012102405770A CN201210240577A CN102729225A CN 102729225 A CN102729225 A CN 102729225A CN 2012102405770 A CN2012102405770 A CN 2012102405770A CN 201210240577 A CN201210240577 A CN 201210240577A CN 102729225 A CN102729225 A CN 102729225A
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Abstract
The invention discloses a quick clamping mechanism. The quick clamping mechanism comprises an output shaft which is used for mounting a tool accessory and forms a locking slotted hole which passes through the internal wall of the output shaft, a locking component arranged in the locking slotted hole, a bushing block sleeved on the output shaft, and a first energy storing component acted on the bushing block; the quick clamping mechanism further comprises a moving component arranged in the locking slotted hole; and the moving component is in contact with the bushing block, and can exert radial component force and axial component force to the bushing block when the tool accessory is inserted. The quick clamping mechanism has the advantages of ingenuity in structure, convenience in achievement, and capability of effectively achieving the operation of clamping or unlocking a working accessory through one hand; and the quick clamping mechanism brings great convenience to a user for use.
Description
Technical field
The present invention is applicable to a kind of fast clamp mechanism.
Background technology
In rotating type electric tool, need often to change working accessory with corresponding specification or function according to concrete application, criticize to change such as electric screw and drape over one's shoulders head accordingly to different screw specifications.In the electric tool of existing rotation class,, usually use spherical to realize locking to working accessory because working accessory needs to rotate; Usually the circumferencial direction of working accessory is provided with a circle lock slots; Spherical cooperates with lock slots through the chamber of invading hammer anvil and being used for fixing working accessory to be realized locking, and existingly is used to control spherical and locks or the release clamping device, often need use and use two hands to carry out work simultaneously; But; In the work engineering of reality, often can only vacate a hand and go to operate, so operation has been caused greatly inconvenience.
Summary of the invention
For solving the deficiency of prior art, the object of the present invention is to provide a kind of a kind of fast clamp mechanism that can realize fast folder or release through one hand.
In order to realize above-mentioned target; The present invention adopts following technical scheme: a kind of fast clamp mechanism; Comprise: be used for the output shaft of erecting tools annex, this output shaft is formed with the locking slotted eye that runs through its inwall, is arranged on the locking piece in the said locking slotted eye; Be sleeved on the lining on the said output shaft, act on the first accumulation of energy part of said lining; Said fast clamp mechanism also comprises the movable part that is installed in the said locking slotted eye, and said movable part contacts with said lining and when said attachment inserts, this lining had radial and axial component.
Aforesaid fast clamp mechanism is characterized in that: said movable part all can contact and be used for to drive or limit above-mentioned locking piece position with above-mentioned lining and locking piece.
Aforesaid fast clamp mechanism; It is characterized in that: the position that said working accessory is installed to output shaft and is locked part locking is a primary importance; Said locking piece is after lining moves axially; The d/d position of working accessory is the second place, and the relative lining of said movable part is movable between the primary importance and the second place.
Aforesaid fast clamp mechanism is characterized in that, above-mentioned output shaft center is provided with the placed cavity that connects its installation end and driving end.
Aforesaid fast clamp mechanism is characterized in that above-mentioned lining slip cap is connected on the periphery of above-mentioned output shaft installation end, and the above-mentioned first accumulation of energy part is arranged between above-mentioned lining and the output shaft.
Aforesaid fast clamp mechanism is characterized in that, is provided with the sliding pin that is used to eject in the above-mentioned placed cavity and is used to make it to have the second accumulation of energy part of the trend of ejecting.
Aforesaid fast clamp mechanism is characterized in that, the outer periphery of above-mentioned output shaft installation end is useful on first packing ring that blocks the above-mentioned first accumulation of energy part, one end, and above-mentioned lining inwall is formed with the vertical wall that is used to block the above-mentioned first accumulation of energy part other end.
Aforesaid fast clamp mechanism is characterized in that, the installation end periphery of above-mentioned output shaft also is provided with the back-up ring that is used to block above-mentioned first packing ring.
Aforesaid fast clamp mechanism; It is characterized in that; The outer race of above-mentioned output shaft is connected to second packing ring that is used to limit above-mentioned locking piece and movable part position, and above-mentioned second packing ring is provided with the open slot that holds above-mentioned locking piece and movable part with corresponding being used to of above-mentioned locking slotted eye.
Aforesaid fast clamp mechanism; It is characterized in that the output shaft periphery is begun to comprise successively by installation end: be used to be provided with above-mentioned back-up ring groove segments, be used to be provided with the above-mentioned second accumulation of energy part the socket section, be used to form above-mentioned locking slotted eye and be used to block the lock segments of above-mentioned second packing ring.
Aforesaid fast clamp mechanism is characterized in that, above-mentioned lock segments is divided into non-revolved body section and the revolving body section that is formed with the perforate plane, is formed with the arc step surface that is used to block above-mentioned second packing ring, one side between above-mentioned revolving body section and the non-revolved body section.
Aforesaid fast clamp mechanism; It is characterized in that; Loop-shaped matches with above-mentioned non-revolved body section in above-mentioned second packing ring, the outer ring is divided into cylindrical section and frustum of a cone section; Cylindrical section is positioned at installation end one side frustum of a cone section and is positioned at driving end one side, and above-mentioned open slot extends to cylindrical section but do not run through fully from above-mentioned frustum of a cone section one side is initial.
Aforesaid fast clamp mechanism is characterized in that, sliding pin is divided into two sections that vary in size, and one a section wherein bigger side and its center that is positioned at above-mentioned driving end is provided with the semi-enclosed kingpin hole that is used to hold the above-mentioned second accumulation of energy part; Above-mentioned placed cavity inwall is formed with and is used for two sections of above-mentioned sliding pin cooperations.
Aforesaid fast clamp mechanism; It is characterized in that; The inwall of above-mentioned lining is formed with: be used to oppress the compressing section that above-mentioned locking piece is invaded above-mentioned placed cavity; Can make above-mentioned locking piece withdraw from the section of loosening of above-mentioned placed cavity, a changeover portion that is arranged between the above-mentioned compressing section and the section of loosening and increases gradually to the section of loosening space by the compressing section.
Aforesaid fast clamp mechanism is characterized in that, above-mentioned locking piece contacts with movable part and when said attachment inserts, said movable part had axially and component of force radially.
Aforesaid fast clamp mechanism is characterized in that, above-mentioned movable part is spheroid or is formed with the special-shaped skewback that is respectively applied for two planes that tilt to intersect that contact with the changeover portion inwall with above-mentioned locking piece that above-mentioned locking piece is a spheroid.
Aforesaid fast clamp mechanism is characterized in that, the above-mentioned second accumulation of energy part is helical spring or two magnetic blocks that repel mutually, and the first accumulation of energy part is helical spring or two magnetic blocks that repel mutually.
Usefulness of the present invention is: structure of the present invention is ingenious, when inserting screwdriver bit, need not operate lining and can accomplish, and through having increased elastic mechanism therein, screwdriver bit can eject automatically, brings greatly easy-to-use to the user.
Description of drawings
Fig. 1 is that a preferred embodiment of the present invention is inserted the structural representation under (or release) state at working accessory;
Fig. 2 is the structural representation under clamped condition embodiment illustrated in fig. 1;
Fig. 3 is the blast structural representation of part parts embodiment illustrated in fig. 1;
Fig. 4 is the structural representation of hammer anvil among Fig. 3;
Fig. 5 is the structural representation of middle lining embodiment illustrated in fig. 1.
The implication of Reference numeral among the figure:
1. working accessory, 2. back-up ring, 3. first packing ring, 4. first accumulation of energy part, the 5. lining; 6. locking piece, 7. movable part, 8. second packing ring, 9. hammer anvil, 10. sliding pin; 11. the second accumulation of energy part, 12. bearings, 13. rotating shafts, 14. locking slotted eyes; 15. vertical wall, 16. open slots, 17, the arc step surface, 18, the lock slots of working accessory; A. groove segments, B. socket section, C. lock segments, D. are oppressed section, the E. section of loosening, F. changeover portion.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, promptly criticizing with electric screw is example, and the present invention is done concrete introduction.
Referring to figs. 1 through shown in Figure 5, a kind of fast clamp mechanism of the present invention mainly comprises: locking piece 6, movable part 7, hammer anvil 9, lining 5.
Wherein, locking piece 6 is used for constituting with the lock slots of working accessory 1 18 and cooperates, and as preferably, locking piece 6 can adopt metal material to process in order to guarantee structural strength.Hammer anvil 9 centers are provided with placed cavity; The effect of placed cavity is plug-in mounting working accessory 1 and holds sliding pin 10; Placed cavity can be designed to the cavity of two ends perforation or be the cavity volume of an end opening; The end that hammer anvil 9 is used for plug-in mounting working accessory 1 is that left end shown in Figure 1 is the installation end of hammer anvil 9, and the end that hammer anvil 9 is used for constituting with rotating shaft 13 drive disk assemblies such as grade transmission is that right-hand member shown in Figure 1 is a driving end, and driving end also is provided with the bearing 12 and rotating shaft 13 as transmission mechanism.Therefore; Shown in seeing figures.1.and.2, the driving end of hammer anvil 9 generally is mounted in the internal body of electric tool, and installation end generally protrudes at engine body exterior; Be used to admit working accessory 1, lining 5 is installed in the periphery of hammer anvil 9 from a side socket of hammer anvil 9 safe ends.Thereby cooperate with the lock slots 18 of working accessory 1 in order to let locking piece 6 get into placed cavity; Hammer anvil 9 is provided with at least one locking slotted eye 14, and locking slotted eye 14 is can hold locking piece 6 and movable part 7 and the part of locking piece 6 is advisable from wherein exposing placed cavity.
With reference to Fig. 1, Fig. 2 and shown in Figure 5; When lining 5 was in compressing section D aligning locking piece 6, because compressing section D wall internal diameter size is little, locking piece 6 was pressed into locking slotted eye 14; At this moment; Movable part 7 also is pressed into locking slotted eye 14 under the effect of changeover portion F wall, but because the hole that locking slotted eye 14 is communicated with placed cavity can only make locking piece 6 parts expose, so movable part also is limited in the locking slotted eye 14 for 7 this moments; This movable part 7 contacts with lining 5 and when said working accessory 1 inserts, this lining 5 is had radial and axial component, and promptly movable part 7 all can contact and be used for to drive or limit above-mentioned locking piece 6 positions with above-mentioned lining 5 and locking piece 6.The changeover portion F inwall of lining 5 contacts with movable part 7; Blocking lining 5 can not be again be moved further it to the driving end of hammer anvil 9; Be state shown in Figure 2, this state is the state that locks working accessory 1, so we are provided with the first accumulation of energy part 4 between lining 5 and hammer anvil 9; Lining 5 is not being had under the situation of external force; Lining 5 remains the trend that moves to the direction away from hammer anvil 9 installation ends to keep this kind state, so even when not having installment work annex 1, the state of this moment also is general holding state.The state of above-mentioned working accessory 1 can also be summarised as: the position that said working accessory 1 is installed to output shaft and is locked part 6 locking is a primary importance; Said locking piece 6 is after lining 5 moves axially; Working accessory 1 d/d position is the second place, and said movable part 7 relative linings 5 are movable between the primary importance and the second place.
As preferred version, movable part 7 can be a spherical, and in order to cooperate with the inwall of locking piece 6 and changeover portion F better, movable part 7 is the special-shaped skewbacks with two contact-making surfaces that tilt to intersect shown in Fig. 1, Fig. 2, Fig. 3.In addition; For the fixing first accumulation of energy part 4; The outer periphery of hammer anvil 9 installation ends is useful on first packing ring 3 that blocks the first accumulation of energy part, 4 one ends; Lining 5 inwalls are formed with the vertical wall 15 that is used to block the first accumulation of energy part, 4 other ends, and the installation end periphery of hammer anvil 9 also is provided with the back-up ring 2 that is used to block first packing ring 3.As preferably, the first accumulation of energy part 4 can be the helical spring shown in Fig. 1, Fig. 2, Fig. 3, and it is socketed in hammer anvil 9 peripheries, and the vertical wall 15 and first packing ring 3 are withstood in two ends; Certainly as a kind of expansion, the first accumulation of energy part 4 also can be two magnetic blocks that each other repel, wherein one fixing with back-up ring 2, another piece is fixed on the vertical wall 15, can realize same effect.
With reference to Fig. 1, Fig. 2 and shown in Figure 5, when need be when annex 1 is deactivated in state release shown in Figure 2, must offer the enough spaces of locking piece 6 and movable part 7; Make them suitably withdraw from locking slotted eye 14, make locking piece 6 no longer cooperate the position of restraint of labour annex 1 with the lock slots 18 of working accessory 1 in the placed cavity; With reference to shown in Figure 1, but under the effect of external force, make lining 5 overcome the effect of the first accumulation of energy part 4; Move to installation end, making the periphery of locking piece 6 and movable part 7 is inwalls of changeover portion F and the section of loosening E, possesses the space of withdrawing from locking slotted eye 14; No matter be to insert working accessory 1 or deactivating annex 1 this moment, and working accessory 1 is suitable with the size that placed cavity is used for fixing working accessory 1 except other part of lock slots 18, so can be through contact top locking piece 6 outside placed cavity; At this moment; Locking piece 6 no longer receives the restriction of compressing section D, can make it withdraw from placed cavity, the plug-in mounting of realizing working accessory 1 with withdraw from; Realize withdrawing from automatically in order to make working accessory 1; Sliding pin 10 is installed in the placed cavity from the other end of hammer anvil 9, and is provided with the second accumulation of energy part 11 and makes it can have the trend that ejects to hammer anvil 9 installation ends, as preferably; Sliding pin 10 is divided into two sections that vary in size, and one a section wherein bigger side and its center that is positioned at driving end is provided with the semi-enclosed kingpin hole that is used to hold the second accumulation of energy part 11; The placed cavity inwall is formed with and is used for two sections of sliding pin 10 cooperations; Benefit is like this, can better fix the second accumulation of energy part 11, also prevents that sliding pin 10 from being ejected by the installation end from hammer anvil 9 simultaneously; One end of the second accumulation of energy part 11 can be fixedly connected with sliding pin 10; The other end can be fixed on such as on the rotating shaft 13 center tumblers, and the second accumulation of energy part 11 also can adopt and the similar technical scheme of the first accumulation of energy part 4, adopts helical spring or two magnetic blocks that repel each other.
With reference to shown in Figure 3; As a kind of preferred version; In order better to limit the position of locking piece 6 and movable part 7; The outer race of hammer anvil 9 is connected to second packing ring, 8, the second packing rings 8 that are used to limit locking piece 6 and movable part 7 positions and is provided with and locks slotted eye 14 corresponding being used to and hold the open slot 16 of locking piece 6 and movable part 7.Loop-shaped match with the non-revolved body section in the back-up ring 2, the outer ring is divided into cylindrical section and frustum of a cone section, and conical section is positioned at installation end one side cylinder table section and is positioned at driving end one side, and open slot 16 extends to cylindrical section but do not run through fully from frustum of a cone section one side is initial.Second packing ring 8 has limited locking piece 6 and movable part 7 moving at hammer anvil 9 circumferencial directions on the one hand through open slot 16; Even make them after withdrawing from locking slotted eye 14, still can accurately fall into locking slotted eye 14 next time; Shown in seeing figures.1.and.2 in addition; Open slot 16 provides an extreme position for movable part 7 in the direction of insertion that is parallel to working accessory 1, make its can be under the situation of lining 5 contact actions again in Fig. 1 the right side be moved further.Need to prove that the cylindrical section of second packing ring 8 and frustum of a cone section are for suitable with the changeover portion F of lining 5 and the section of loosening E, the inwall of itself and lining 5 also can adopt other shape, does not add at this and gives unnecessary details.
With reference to Fig. 3 and shown in Figure 4; For can be better fixing parts such as back-up ring 2, first packing ring 3; As a kind of preferred version, hammer anvil 9 peripheries are begun to comprise successively by installation end: be used to be provided with back-up ring 2 groove segments A, be used to be provided with the second accumulation of energy part 11 socket section B, be used to form locking slotted eye 14 and be used to block the lock segments C of second packing ring 8.Lock segments C is divided into non-revolved body section and the revolving body section that is formed with the perforate plane, is formed with the arc step surface 17 that is used to block second packing ring, 8 one sides between revolving body section and the non-revolved body section.Be that the non-revolved body section is by the integral body that forms the revolving body section; The number of the locking slotted eye 14 that is provided with as required; In a circumferential direction, dissect with the plane of the axis that is parallel to the revolving body section and to form, owing to be not to dissect fully; So formed arch steps face 17 dissecing end, the effect on arch steps face 17 and the plane dissectd out is to can be good at blocking and locate second packing ring 8.
The foregoing description does not limit the present invention in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in protection scope of the present invention.
Claims (17)
1. fast clamp mechanism comprises:
The output shaft that is used for the erecting tools annex, this output shaft are formed with the locking slotted eye that runs through its inwall;
Be arranged on the locking piece in the said locking slotted eye;
Be sleeved on the lining on the said output shaft;
Act on the first accumulation of energy part of said lining;
It is characterized in that, also comprise the movable part that is installed in the said locking slotted eye, said movable part contacts with said lining and when said attachment inserts, this lining is had radial and axial component.
2. fast clamp mechanism according to claim 1 is characterized in that: said movable part all can contact and be used for to drive or limit above-mentioned locking piece position with above-mentioned lining and locking piece.
3. fast clamp mechanism according to claim 2; It is characterized in that: the position that said working accessory is installed to output shaft and is locked part locking is a primary importance; Said locking piece is after lining moves axially; The d/d position of working accessory is the second place, and the relative lining of said movable part is movable between the primary importance and the second place.
4. fast clamp mechanism according to claim 3 is characterized in that, above-mentioned output shaft center is provided with the placed cavity that connects its installation end and driving end.
5. fast clamp mechanism according to claim 4 is characterized in that above-mentioned lining slip cap is connected on the periphery of above-mentioned output shaft installation end, and the above-mentioned first accumulation of energy part is arranged between above-mentioned lining and the output shaft.
6. fast clamp mechanism according to claim 5 is characterized in that, is provided with the sliding pin that is used to eject in the above-mentioned placed cavity and is used to make it to have the second accumulation of energy part of the trend of ejecting.
7. fast clamp mechanism according to claim 6; It is characterized in that; The outer periphery of above-mentioned output shaft installation end is useful on first packing ring that blocks the above-mentioned first accumulation of energy part, one end, and above-mentioned lining inwall is formed with the vertical wall that is used to block the above-mentioned first accumulation of energy part other end.
8. fast clamp mechanism according to claim 7 is characterized in that, the installation end periphery of above-mentioned output shaft also is provided with the back-up ring that is used to block above-mentioned first packing ring.
9. fast clamp mechanism according to claim 8; It is characterized in that; The outer race of above-mentioned output shaft is connected to second packing ring that is used to limit above-mentioned locking piece and movable part position, and above-mentioned second packing ring is provided with the open slot that holds above-mentioned locking piece and movable part with corresponding being used to of above-mentioned locking slotted eye.
10. fast clamp mechanism according to claim 9; It is characterized in that the output shaft periphery is begun to comprise successively by installation end: be used to be provided with above-mentioned back-up ring groove segments, be used to be provided with the above-mentioned second accumulation of energy part the socket section, be used to form above-mentioned locking slotted eye and be used to block the lock segments of above-mentioned second packing ring.
11. fast clamp mechanism according to claim 10; It is characterized in that; Above-mentioned lock segments is divided into non-revolved body section and the revolving body section that is formed with the perforate plane, is formed with the arc step surface that is used to block above-mentioned second packing ring, one side between above-mentioned revolving body section and the non-revolved body section.
12. fast clamp mechanism according to claim 10; It is characterized in that; Loop-shaped matches with above-mentioned non-revolved body section in above-mentioned second packing ring, the outer ring is divided into cylindrical section and frustum of a cone section; Cylindrical section is positioned at installation end one side frustum of a cone section and is positioned at driving end one side, and above-mentioned open slot extends to cylindrical section but do not run through fully from above-mentioned frustum of a cone section one side is initial.
13. fast clamp mechanism according to claim 6 is characterized in that, sliding pin is divided into two sections that vary in size, and one a section wherein bigger side and its center that is positioned at above-mentioned driving end is provided with the semi-enclosed kingpin hole that is used to hold the above-mentioned second accumulation of energy part; Above-mentioned placed cavity inwall is formed with and is used for two sections of above-mentioned sliding pin cooperations.
14. according to any described fast clamp mechanism of claim 5 to 13; It is characterized in that; The inwall of above-mentioned lining is formed with: be used to oppress the compressing section that above-mentioned locking piece is invaded above-mentioned placed cavity; Can make above-mentioned locking piece withdraw from the section of loosening of above-mentioned placed cavity, a changeover portion that is arranged between the above-mentioned compressing section and the section of loosening and increases gradually to the section of loosening space by the compressing section.
15., it is characterized in that above-mentioned locking piece contacts with movable part and when said attachment inserts, said movable part had axially and component of force radially according to any described fast clamp mechanism of claim 5 to 13.
16. fast clamp mechanism according to claim 14 is characterized in that, above-mentioned movable part is spheroid or is formed with the special-shaped skewback that is respectively applied for two planes that tilt to intersect that contact with the changeover portion inwall with above-mentioned locking piece that above-mentioned locking piece is a spheroid.
17. fast clamp mechanism according to claim 16 is characterized in that, the above-mentioned second accumulation of energy part is helical spring or two magnetic blocks that repel mutually, and the first accumulation of energy part is helical spring or two magnetic blocks that repel mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240577.0A CN102729225B (en) | 2012-07-12 | 2012-07-12 | Quick clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240577.0A CN102729225B (en) | 2012-07-12 | 2012-07-12 | Quick clamping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102729225A true CN102729225A (en) | 2012-10-17 |
| CN102729225B CN102729225B (en) | 2015-04-08 |
Family
ID=46985880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210240577.0A Expired - Fee Related CN102729225B (en) | 2012-07-12 | 2012-07-12 | Quick clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102729225B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878726A (en) * | 2014-03-27 | 2014-06-25 | 国家电网公司 | Electric screwdriver |
| CN104227633A (en) * | 2013-06-06 | 2014-12-24 | 苏州宝时得电动工具有限公司 | Impact wrench |
| CN104275685A (en) * | 2013-07-03 | 2015-01-14 | 博世电动工具（中国）有限公司 | Tool clamping device and hand-held electric tool including the tool clamping device |
| CN105500296A (en) * | 2015-12-31 | 2016-04-20 | 宁波中旺工具有限公司 | Electric screw driver with vibration reduction separating piece |
| CN108237498A (en) * | 2016-12-27 | 2018-07-03 | 苏州宝时得电动工具有限公司 | Collet |
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| US6457916B2 (en) * | 1999-11-15 | 2002-10-01 | Insty-Bit, Inc. | Locking quick-change chuck assembly |
| US20050036844A1 (en) * | 2003-08-14 | 2005-02-17 | Atlas Copco Electric Tools Gmbh | Clamping Device for Hexagon Bits |
| CN201613372U (en) * | 2009-12-29 | 2010-10-27 | 苏州宝时得电动工具有限公司 | Chuck and electric tool using same |
| JP2011218454A (en) * | 2010-04-05 | 2011-11-04 | Saburo Hayashi | Bit connecting tool made of synthetic resin |
| CN202702204U (en) * | 2012-07-12 | 2013-01-30 | 南京德朔实业有限公司 | Quick clamp mechanism |
-
2012
- 2012-07-12 CN CN201210240577.0A patent/CN102729225B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6457916B2 (en) * | 1999-11-15 | 2002-10-01 | Insty-Bit, Inc. | Locking quick-change chuck assembly |
| US20050036844A1 (en) * | 2003-08-14 | 2005-02-17 | Atlas Copco Electric Tools Gmbh | Clamping Device for Hexagon Bits |
| CN201613372U (en) * | 2009-12-29 | 2010-10-27 | 苏州宝时得电动工具有限公司 | Chuck and electric tool using same |
| JP2011218454A (en) * | 2010-04-05 | 2011-11-04 | Saburo Hayashi | Bit connecting tool made of synthetic resin |
| CN202702204U (en) * | 2012-07-12 | 2013-01-30 | 南京德朔实业有限公司 | Quick clamp mechanism |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227633A (en) * | 2013-06-06 | 2014-12-24 | 苏州宝时得电动工具有限公司 | Impact wrench |
| CN104275685A (en) * | 2013-07-03 | 2015-01-14 | 博世电动工具（中国）有限公司 | Tool clamping device and hand-held electric tool including the tool clamping device |
| CN103878726A (en) * | 2014-03-27 | 2014-06-25 | 国家电网公司 | Electric screwdriver |
| CN103878726B (en) * | 2014-03-27 | 2016-05-04 | 国家电网公司 | A kind of electric screwdriver head |
| CN105500296A (en) * | 2015-12-31 | 2016-04-20 | 宁波中旺工具有限公司 | Electric screw driver with vibration reduction separating piece |
| CN108237498A (en) * | 2016-12-27 | 2018-07-03 | 苏州宝时得电动工具有限公司 | Collet |
| CN108237498B (en) * | 2016-12-27 | 2024-04-09 | 苏州宝时得电动工具有限公司 | Clamping head |
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| Publication number | Publication date |
|---|---|
| CN102729225B (en) | 2015-04-08 |
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Granted publication date: 20150408 Termination date: 20170712 |