CN101733736B - Chuck and power tool using same - Google Patents
Chuck and power tool using same Download PDFInfo
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- CN101733736B CN101733736B CN2008101754513A CN200810175451A CN101733736B CN 101733736 B CN101733736 B CN 101733736B CN 2008101754513 A CN2008101754513 A CN 2008101754513A CN 200810175451 A CN200810175451 A CN 200810175451A CN 101733736 B CN101733736 B CN 101733736B
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- sleeve
- latch segment
- chuck
- rotary sleeve
- jacket assembly
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Abstract
The invention discloses a chuck, which is used for accommodating and clamping a tool head inserted from the outside and comprises a sleeve, a locking block, a protective sleeve component and a rotating sleeve, wherein the sleeve is used for accommodating the tool head inserted from the outside and is provided with a long slot running through the sleeve wall of the sleeve in a radial direction; the locking block is accommodated in the long slot and can move along the sleeve radially to lock or release the tool head; the protective sleeve component is sleeved outside the sleeve and can move axially relative to the sleeve; the rotating sleeve is sleeved between the sleeve and the protective sleeve component and is matched with the locking block and the protective sleeve component respectively; when the locking block is pushed axially, the locking block drives the rotating sleeve to rotate, so that the locking block can move radially; when the protective sleeve component moves axially, the protective sleeve component drives the locking block to rotate, so that the locking block can move radially. A power tool comprises a tool body, a motor arranged in the tool body, a rotating mechanism connected with the motor and the chuck connected with the rotating mechanism, wherein the chuck is the chuck provided by the invention.
Description
Technical field
The power tool that the present invention relates to a kind of chuck and use this chuck, especially a kind of hammer drill class power tool that has the chuck of quick clamping releasing tool head and use this chuck.
Background technology
Traditional hammer drill class power tool has casing as electric hammer, is arranged on the driving shaft in the casing, is connected the chuck on the driving shaft, and chuck is used for the clamping device head.Driving shaft and being installed in the chuck that tool heads rotatablely moves by the insertion instrument by the latch segment restrictive axial motion in the insertion tool heads locking slot.
U.S. Pat 4626146 discloses a kind of hammer that is used for hammer drill class device, comprise a guide pipe that is used to install cylindrical tool, one around the guide pipe setting and the adjusting sheath that can move axially and rotate with respect to guide pipe, and several are installed in the locking member on the guide pipe.Guide pipe is provided with the opening that radially runs through from the inner surface to outer surface, and locking member radially movably is installed in the opening of guide pipe and is used at chuck locking tool head, is used for locking member locking tool heads thereby regulate sheath radial effect power.The inner surface of regulating sheath is provided with groove, regulate sheath in rotation and make groove with respect to the opening on the guide pipe during at certain position, thereby locking member can move radially releasing tool head in the groove.Regulate sheath and be provided with protuberance, corresponding guide pipe is provided with cam surface, and cam surface tilts to some extent with respect to the axial direction of guide pipe, and the interaction of regulating rotatablely moving of sheath and being by the cam surface on protuberance and the guide pipe realizes.
Though installation and locking that the above-mentioned hammer that is used for hammer drill class device can the implementation tool head owing to also need rotation to regulate sheath when regulating sheath moving axially during its extracting tool head, have brought inconvenience to the operator like this.
For this reason, prior art is necessary further improvement in fact.
Summary of the invention
At the deficiencies in the prior art, the object of the present invention is to provide the chuck of the quick clamping releasing tool of having of a kind of easy operating head.
Another object of the present invention is to provide a kind of use of easy operating to clamp the power tool of the chuck of releasing tool head fast.
The technical solution adopted for the present invention to solve the technical problems is: a kind of chuck, be used to accommodate and the outside tool heads of inserting of clamping, and comprise sleeve, be used to accommodate the outside tool heads of inserting, described sleeve is provided with the elongated slot that radially runs through sleeve wall; Latch segment locks or the releasing tool head thereby be contained in the described elongated slot and can move radially along sleeve; Jacket assembly, be sheathed on sleeve outside and relatively sleeve along moving axially; And be set between sleeve and the jacket assembly and the rotary sleeve that can cooperate with latch segment and jacket assembly respectively, when latch segment is axially promoted, latch segment drives the rotary sleeve rotation, to allow the latch segment radial motion, when jacket assembly moves axially, jacket assembly drives the latch segment rotation, to allow the latch segment radial motion.
Preferably, the inner surface of described rotary sleeve is formed with the radial cams face along circumferencial direction, described radial cams face comprises that large-diameter portion divides and the path part, wherein the diameter of large-diameter portion branch is greater than the diameter of path part, when described latch segment is positioned at the large-diameter portion timesharing, latch segment can radially move, and when described latch segment is positioned at the minor diameter part timesharing, latch segment is limited radially to move.
Preferably, described chuck also comprise around sleeve and with respect to quill to the fairlead that fixedly installs with circumferencial direction, described fairlead is provided with the stopper slot that radially runs through, described latch segment can radially pass described stopper slot.
Preferably, described chuck comprises that also being arranged on being used between jacket assembly and the sleeve provides axial elasticity power and the elastic parts that is used for providing the circumferencial direction resilient force to rotary sleeve to jacket assembly.
A kind of power tool comprises tool body, is installed in the motor in the tool body, is connected the transmission mechanism on the motor, is connected the chuck on the transmission mechanism, and described chuck is aforesaid chuck.
The invention has the beneficial effects as follows: chuck of the present invention and the power tool that uses this chuck are in the erecting tools head, only tool heads need be inserted in the sleeve, rotary sleeve meeting auto lock tool heads, when needs take out tool heads, only need depress jacket assembly, tool heads can be taken out, and jacket assembly can automatically revert to reset condition, than being easier to operation.
Description of drawings
Be described in further detail below in conjunction with accompanying drawing and the preferred embodiments of the present invention.
Fig. 1 is the front view of electric hammer of the present invention.
Fig. 2 is the three-dimensional exploded view of the chuck of electric hammer of the present invention.
Fig. 3 a is the phantom of the chuck of electric hammer of the present invention.
Fig. 3 b is the phantom of another kind of embodiment of the chuck of electric hammer of the present invention.
Fig. 4 is the stereogram of the rotary sleeve in the chuck of electric hammer of the present invention.
Fig. 5 is the stereogram of the another side of the rotary sleeve in the chuck of electric hammer of the present invention.
Fig. 6 is the stereogram of separating lock tube in the chuck of electric hammer of the present invention.
Cutaway view when Fig. 7 is unkitted tool heads for the chuck of electric hammer of the present invention.
The cutaway view of Fig. 8 during for the chuck erecting tools head of electric hammer of the present invention.
Fig. 9 is the cutaway view that the chuck of electric hammer of the present invention is in locking state.
Figure 10 is along the cutaway view of A-A line among Fig. 9.
Figure 11 is the cutaway view that the chuck of electric hammer of the present invention is in release conditions.
Among Figure 12 Figure 11 along the cutaway view of B-B line.
Wherein, the related elements reference numeral is as follows:
1. tool body 2. chucks 3. sleeves
4. jacket assembly 5. rotary sleeves 6. fairleads
7. latch segment 8. elastic parts 9. tool heads
11. handle 16. steel wire ring washers 100. transmission mechanisms
200. motor 31. firsts 32. second portions
33. third part 30. shaft shoulders 303. draw-in grooves
311. step in the elongated slot 311a. inclined-plane 311b.
312. locating slot 313. first annular grooves 314. second annular grooves
41. rubber helmet 42. operation sheaths 43. are separated lock tube
411. internal projecting ring 421. inner faces 422. step surfaces
431. front end face 432. rear end faces 433. protuberances
434. installing hole 435. flanges 51. front end faces
52. rear end face 53. gathering sills 54. radial cams faces
55. installing hole 56. mounting grooves 57. axial cam faces
521. first aperture, 531. right-angle sides, 532. parallel edges
533. 542. path spaces, space, hypotenuse 541. big footpath
61. outward flange 62. stopper slots 63. projectioies
71. outer step 81. first flexible members 82. second flexible members
83. baffle plate 84. packing rings 831. projections
832. second aperture, 90. handle of a knifes, 91. grooves
The specific embodiment
With reference to Fig. 1, the hammer drill class power tool that the invention discloses a kind of chuck and use this chuck, in a preferred embodiment of the invention, hammer drill class power tool is an electric hammer.Hammer drill class power tool comprises tool body 1, be contained in the motor 200 and the transmission mechanism 100 of tool body 1 inside, be arranged in tool body 1 rear portion (the diagram right side is defined as the rear portion) and be provided with handle 11, chuck 2 is installed in the front portion of tool body 1, and is connected with transmission mechanism 100.When motor 200 produced driving, the rotation torque of motor output was passed on the chuck 2 driven tool 9 rotary work by transmission mechanism 100.Motor 200 can be a motor, and transmission mechanism 100 can be gear reduction transmission mechanism or cam drive.
With reference to Fig. 2, chuck 2 comprises sleeve 3, latch segment 7, fairlead 6, rotary sleeve 5, jacket assembly 4, elastic parts 8.
With reference to Fig. 4 and Fig. 5, rotary sleeve 5 is set in the first 31 of sleeve 3, the one end is open state, the other end then forms installing hole 55, the diameter of the diameter of installing hole 55 and sleeve 3 firsts 31 about equally, like this, rotary sleeve 5 is set on the sleeve 3 by installing hole 55 and can rotates around sleeve 3.The outer surface of rotary sleeve 5 is provided with gathering sill 53, the preferred gathering sill 53 of the present invention be shaped as right-angled trapezium, its right-angle side 531 is on the front end face 51 of rotary sleeve 5, article two, the axially parallel of parallel edges 532 and rotary sleeve 5, hypotenuse 533 is the angle of inclination along circumferencial direction and axis direction, and parallel edges 532 is connected by arc transition with the intersection of hypotenuse 533.The long parallel edges length of gathering sill 53 is less than the axial length of rotary sleeve 5.The shape of gathering sill 53 also can be a triangle, and perhaps other shape is as long as the gathering sill of this shape has a hypotenuse 533 to be the angle of inclination setting along circumferencial direction and axis direction.The number of the preferred gathering sill 53 of the present invention is two, along the equidistant arrangement of rotary sleeve 5 circumferencial directions.Form radial cams face 54 in the inner radial surface of rotary sleeve 5 along circumferencial direction, radial cams face 54 has large-diameter portion and divides 541 and path part 542, and wherein large-diameter portion divides 541 the diameter diameter greater than path part 542, and both connect by the arc surface transition.Radial cams face 54 communicates with the front end face 51 of rotary sleeve 5 in the axial direction, and divide 541 to extend one section axial cam face 57 along axis direction from path part 542 to large-diameter portion, axial cam face 57 is to the ultimate range of front end face 51 axial length less than rotary sleeve 5.The number of preferred radial cams face 54 of the present invention and axial cam face 57 is two, along the equidistant arrangement of rotary sleeve 5 circumferencial directions.The rear end face 52 of rotary sleeve 5 is provided with first aperture 521, is provided with mounting groove 56 on installing hole 55, and mounting groove 56 runs through rotary sleeve 5 vertically.
Continuation is with reference to Fig. 2, and fairlead 6 is arranged between rotary sleeve 5 and the sleeve 3, and an end of fairlead 6 is provided with outward flange 61, and the external diameter of outward flange 61 is greater than the internal diameter of rotary sleeve 5, and like this, the outward flange 61 of fairlead 6 just is stuck on the front end face 51 of rotary sleeve 5.Fairlead 6 is provided with a pair of stopper slot that radially runs through 62 vertically, and stopper slot 62 is an end opening setting of outward flange 61 dorsad.Fairlead 6 inner surfaces are parallel to axially and are provided with projection 63 with stopper slot 62 what circumferencial direction staggered, and same, the phase angle that the two staggered is 90 degree.Cooperate and the stopper slot 62 of fairlead 6 is aimed at elongated slots 311 by the locating slot 312 on projection 63 and the sleeve 3 to be installed on the sleeve 3, restricted guidance overlaps the rotation of 6 circumferencial directions, prevents fairlead 6 circumferencial direction dislocation when mounted.
With reference to Fig. 3 a, latch segment 7 roughly is cuboid, and its radial direction along sleeve 3 forms arc surface.Latch segment 7 passes stopper slot 62, the one end is stuck in the elongated slot 311, the other end is right against radial cams face 54 positions, the thickness of latch segment 7 is S1, and the width of stopper slot 62 is S2, and S2 is a bit larger tham S1, like this, stopper slot 62 has limited the rotation of latch segment 7, and promptly latch segment 7 can only move along the radial direction of stopper slot 62 at sleeve 3.In the time of in latch segment 7 sticks into elongated slot 311, latch segment can only partly extend in the sleeve 3 under the restriction of inclined-plane 311a, guarantees in the sleeve 3 that chucks 2 can not be stuck thereby the position-limiting action promptly by inclined-plane 311a makes latch segment 7 not drop into fully.With reference to Fig. 3 b, in yet another embodiment of the present invention, the cell wall of the elongated slot 311 on the sleeve 3 is provided with interior step 311b, and the outer wall of corresponding latch segment is provided with outer step 71, and latch segment 7 is stuck in the elongated slot 311 by the cooperation of outer step 71 and interior step 311b.With reference to Fig. 2, latch segment 7 is L1 along sleeve 3 axial length, and the elongated slot 311 on the sleeve 3 is L2 along sleeve 3 axial length, and wherein L1 is less than L2, and latch segment 7 can move axially along sleeve 3 in elongated slot 311 like this.The handle of a knife 90 of tool heads 9 is provided with the groove 91 of pair of parallel in axial symmetry, and latch segment 7 passes elongated slot 311 on the sleeve 3 and is stuck in the groove 91 on the tool heads 9, thereby can lock tool heads 9.
The width of the mounting groove 56 of rotary sleeve 5 is S3 (as shown in Figure 5), the thickness S1 of latch segment 7 is less than S3, like this, when installation rotary sleeve 5 is to sleeve 3, mounting groove 56 is aimed at latch segment 7 to be moved vertically, rotary sleeve 5 rotated to latch segment 7 that another angle makes when latch segment 7 is crossed installing hole 55 and be positioned at the radial cams face 54 of rotary sleeve 5, just can carry out locking and the release of latch segment 7 pair tool heads 9 by the rotation of rotary sleeve 5 this moment.When rotary sleeve 5 rotates to latch segment 7 when being in large-diameter portion and dividing 541, latch segment 7 can withdraw from the groove 91 on the tool heads 9, and promptly tool heads 9 is released; When rotary sleeve 5 rotates to latch segment 7 when being in path part 542, latch segment 7 sticks into the groove 91 on the tool heads 9, and promptly tool heads 9 is locked.
The outside at rotary sleeve 5 also is provided with jacket assembly 4, and jacket assembly 4 includes operation sheath 42, be connected in the rubber helmet 41 of operation sheath 42 front ends and close-fitting is installed on and separates lock tube 43 in the operation sheath 42.Separate lock tube 43 front ends and be stuck on the sleeve 3, part rotary sleeve 5 is accommodated in the rear end.The front end of separating lock tube 43 is provided with an installing hole 434, be arranged with flange 435 on the periphery of installing hole 434, to separate lock tube 43 and be installed on the sleeve 3 by the locating slot on flange 435 and the sleeve 3 312 is cooperated, prevent to separate the rotation of lock tube 43 and circumferencial direction dislocation when installing.With reference to Fig. 6, separate lock tube 43 rear end inner peripheral surfaces and be provided with protuberance 433, when separating lock tube 43 and be set on the rotary sleeve 5, protuberance 433 is housed in the gathering sill 53 of rotary sleeve 5 and along with the axially-movable of separating lock tube 43 and moves along gathering sill 53.In the preferred embodiment of the invention protuberance 433 be shaped as cylindrical, certainly protuberance 433 also can be set to truncated cone-shaped, side's platform shape or any other shapes that realize the function of protuberance 433, and protuberance 433 also can be installed to by other mode and separates on the lock tube 43, as on the circumferential wall of separating lock tube 43, offering the hole, close-fitting mount pin in the hole is perhaps offered screw hole on the circumferential wall of separating lock tube 43, be screwed into screw or the like in screw hole.
With reference to Fig. 7, operation sheath 42 with separate lock tube 43 radially close-fitting be connected, operate sheath 42 inside and be provided with inner face 421, the front end face 431 of separating lock tube 43 abuts against on the inner face 421, separate lock tube 43 when like this, operation sheath 42 moves axially along with operation sheath 42 moves simultaneously.Operation sheath 42 inner surfaces vertically with separate lock tube 43 equidistant places and be provided with step surface 422.The front end of sheath is connected with rubber helmet 41, and the inner circumferential surface that rubber helmet 41 is connected with sleeve 3 is provided with internal projecting ring 411, thereby by the cooperation of first annular groove 313 on internal projecting ring 411 and the sleeve 3 rubber helmet 41 is installed on the sleeve 3.By the guide effect that rubber helmet 41 has played erecting tools head 9 is set, also played dustproof effect simultaneously to chuck 2.
Elastic parts 8 is made up of multiple elements, and comprises first flexible member 81, second flexible member 82, baffle plate 83 and packing ring 84.First flexible member 81 is arranged between operation sheath 42 and the rotary sleeve 5, and in order to operation sheath 42 to be provided and to separate the axial elastic force of lock tube 43, first flexible member 81 among the present invention is compression springs 81.One end of compression spring 81 leans against step surface 422 and conciliates on the rear end face 432 of lock tube 43.Second flexible member 82 is arranged between the shaft shoulder 30 of rotary sleeve 5 and sleeve 3, and second flexible member 82 among the present invention is torsion springs 82.The inner ring of baffle plate 83 is arranged with projection 831, and baffle plate 83 cooperates with draw-in groove 303 on sleeve 3 shaft shoulders 30 by projection 831 and is installed on the sleeve 3, and draw-in groove 303 has limited the rotation of baffle plate 83.The end face of baffle plate 83 is provided with second aperture 832, and an end of torsion spring 82 is fastened in first aperture 521 of rotary sleeve 5 rear end faces 52 (as shown in Figure 5), and the other end is fastened in second aperture 832 on the baffle plate 83.The other end of compression spring 82 leans against on the end face of baffle plate 83.Packing ring 84 is provided with around torsion spring 82, and an end of packing ring 84 leans against on the rear end face 52 of rotary sleeve 5, and the other end leans against on the end face of baffle plate 83.When rotary sleeve 5 rotated, packing ring 84 provided the platform of a rotation for rotary sleeve 5.
When needs are changed process tool, can realize by operation chuck 2.To describe the process of installation and removal tool heads 9 below in detail.
With reference to Fig. 7, when not having erecting tools head 9, latch segment 7 is in the path part 542 of rotary sleeve 5, and promptly latch segment 7 is in locked position.With reference to Fig. 8, during holding tool head 9, tool heads 9 is put into sleeve 3 vertically under the guiding of rubber helmet 41, the handle of a knife 90 of tool heads 9 promotes latch segment 7 and axially moves backward along sleeve 3, latch segment 7 contact with axial cam face 57 and axial action in axial cam face 57, this moment, latch segment 7 moved along axial cam face 57, drive rotary sleeve 5 rotations simultaneously, the rotation of rotary sleeve 5 makes torsion spring 82 strains, and rotary sleeve 5 rotates to its large-diameter portion and divides 541 positions relative with elongated slot 311, the large-diameter portion that latch segment 7 radially outwards moves into rotary sleeve 5 divides 541, with reference to Fig. 9 and Figure 10, the handle of a knife 90 of tool heads 9 is crossed latch segment 7, latch segment 7 sticks into the groove 91 on the handle of a knife, rotary sleeve 5 is returned to rotary sleeve 5 under the effect of torsion spring 82 path part 542 and latch segment 7 over against the position, locking tool heads 9 makes it and can not fall down from electric hammer 1.With reference to Figure 11 and Figure 12, during extracting tool head 9, manually axially promoting operation sheath 42 moves backward, separate lock tube 43 also moves thereupon backward, the protuberance of separating on the lock tube 43 433 endwisely slips at the guiding lower edge of the hypotenuse 532 of gathering sill 53 sleeve 3, drive rotary sleeve 5 rotations simultaneously, rotary sleeve 5 rotation makes torsion spring 82 strains, and rotary sleeve 5 rotates to its large-diameter portion and divides 541 positions relative with elongated slot 311, at this moment, twitch tool heads 9, divide 541 grooves 91 that withdraw from the handle of a knife thereby latch segment 7 can radially outwards move into the large-diameter portion of rotary sleeve 5, this moment, tool heads 9 can be pulled out.Unclamp sheath, operation sheath 42 is resetted, rotary sleeve 5 is resetted, like this, lock fast 7 and just be in the path part 542 of rotary sleeve 5 again.
The power tool that is used for hand held power machine provided by the present invention is easy to operate, helps applying on industry.
Claims (20)
1. a chuck (2) is used to accommodate and the outside tool heads of inserting (9) of clamping, comprising:
Sleeve (3) is used to accommodate the outside tool heads of inserting (9), and described sleeve (3) is provided with the elongated slot (311) that radially runs through sleeve (3) barrel,
Latch segment (7), be contained in the described elongated slot (311) and can be along sleeve (3) thus move radially locking or releasing tool head (9),
Jacket assembly (4), it is outside and can be with respect to sleeve (3) along moving axially to be sheathed on sleeve (3),
It is characterized in that: described chuck (2) also comprises the rotary sleeve (5) that also can cooperate with latch segment (7) and jacket assembly (4) respectively that is set between sleeve (3) and the jacket assembly (4), when latch segment (7) is axially promoted, latch segment (7) drives rotary sleeve (5) rotation, to allow latch segment (7) radial motion; When jacket assembly (4) when moving axially, jacket assembly (4) drives rotary sleeve (5) rotation, to allow latch segment (7) radial motion.
2. chuck as claimed in claim 1 (2), it is characterized in that: the inner surface of described rotary sleeve (5) is formed with radial cams face (54) along circumferencial direction, described radial cams face (54) comprises large-diameter portion branch (541) and path part (542), wherein the diameter of large-diameter portion branch (541) is greater than the diameter of path part (542), when described latch segment (7) is positioned at large-diameter portion branch (541), latch segment (7) can radially move, when described latch segment (7) was positioned at path part (542), latch segment (7) was limited radially to move.
3. chuck as claimed in claim 2 (2), it is characterized in that: described rotary sleeve (5) comprises the axial cam face (57) that is formed on its axial inwall, described axial cam face (57) extends to large-diameter portion branch (541) along axis direction from path part (542), described latch segment (7) can with described axial cam face (57) against.
4. chuck as claimed in claim 1 (2) is characterized in that: described jacket assembly (4) includes operation sheath (42) and close-fitting and is installed on and separates lock tube (43) in the operation sheath (42).
5. chuck as claimed in claim 4 (2), it is characterized in that: described lock tube (43) inner peripheral surface of separating is provided with protuberance (433), the outer surface of described rotary sleeve (5) along the circumferential direction is provided with to the gathering sill (53) of small part with respect to axioversion, be set in rotary sleeve (5) when going up when separating lock tube (43), described protuberance (433) is housed in the gathering sill (53) and can moves in gathering sill (53).
6. chuck as claimed in claim 4 (2) is characterized in that: describedly separate fixing being installed on the sleeve (3) of lock tube (43) circumferencial direction.
7. chuck as claimed in claim 1 (2) is characterized in that: described elongated slot (311) axially stretches along sleeve (3), and described latch segment (7) can be along described elongated slot (311) axially-movable.
8. as claim 1 or 7 described chucks (2), it is characterized in that: the cell wall of described elongated slot (311) is provided with inclined-plane (311a), and described latch segment (7) radially can partly extend in the sleeve (3) by described inclined-plane (311a).
9. as claim 1 or 7 described chucks (2), it is characterized in that: the cell wall of described elongated slot (311) is provided with interior step (311b), described latch segment (7) is provided with outer step (71), and described latch segment (7) extend in the sleeve (3) by the mating part of described outer step (71) and described interior step (311b).
10. chuck as claimed in claim 1 (2), it is characterized in that: described chuck (2) also comprises around sleeve (3) and fairlead (6) axial with respect to sleeve (3) and that circumferencial direction fixedly installs, described fairlead (6) is provided with the stopper slot (62) that radially runs through, and described latch segment (7) can radially pass described stopper slot (62).
11. chuck as claimed in claim 1 (2), it is characterized in that: described chuck (2) also comprises the elastic parts (8) that is arranged between jacket assembly (4) and the sleeve (3), first flexible member (81) that cooperates and provide jacket assembly (4) axially to reset with jacket assembly (4) is provided described elastic parts (8), and cooperates with rotary sleeve (5) and rotary sleeve (5) second flexible member (82) that circumferencial direction resets is provided.
12. chuck as claimed in claim 11 (2) is characterized in that: described first flexible member (81) is the compression spring.
13. chuck as claimed in claim 11 (2) is characterized in that: described second flexible member (82) is a torsion spring.
14. power tool, comprise tool body (1), be installed in the motor (200) in the tool body (1), be connected the transmission mechanism (100) on the motor (200), be connected the chuck (2) on the transmission mechanism (100), described chuck (2) is used to accommodate and the outside tool heads of inserting (9) of clamping, and described chuck comprises:
Sleeve (3) is used to accommodate the outside tool heads of inserting (9), and described sleeve (3) is provided with the elongated slot (311) that radially runs through sleeve (3) barrel,
Latch segment (7), be contained in the described elongated slot (311) and can be along sleeve (3) thus move radially locking or releasing tool head (9),
Jacket assembly (4), it is outside and can be with respect to sleeve (3) along moving axially to be sheathed on sleeve (3),
It is characterized in that: described chuck (2) also comprise be set between sleeve (3) and the jacket assembly (4) and can be respectively and the rotary sleeve (5) that cooperates with latch segment (7) and jacket assembly (4), when latch segment (7) is axially promoted, latch segment (7) drives rotary sleeve (5) rotation, to allow latch segment (7) radial motion; When jacket assembly (4) when moving axially, jacket assembly (4) drives rotary sleeve (5) rotation, to allow latch segment (7) radial motion.
15. power tool as claimed in claim 14, it is characterized in that: the inner surface of described rotary sleeve (5) is formed with radial cams face (54) along circumferencial direction, described radial cams face (54) comprises large-diameter portion branch (541) and path part (542), wherein the diameter of large-diameter portion branch (541) is greater than the diameter of path part (542), when described latch segment (7) is positioned at large-diameter portion branch (541), latch segment (7) can radially move, when described latch segment (7) was positioned at path part (542), latch segment (7) was limited radially to move.
16. power tool as claimed in claim 15, it is characterized in that: described rotary sleeve (5) comprises the axial cam face (57) that is formed on its axial inwall, described axial cam face (57) extends to large-diameter portion branch (541) along axis direction from path part (542), described latch segment (7) can with described axial cam face (57) against.
17. power tool as claimed in claim 1 is characterized in that: described jacket assembly (4) includes operation sheath (42) and close-fitting and is installed on and separates lock tube (43) in the operation sheath (42).
18. power tool as claimed in claim 17, it is characterized in that: described lock tube (43) inner peripheral surface of separating is provided with protuberance (433), the outer surface of described rotary sleeve (5) along the circumferential direction is provided with to the gathering sill (53) of small part with respect to axioversion, be set in rotary sleeve (5) when going up when separating lock tube (43), described protuberance (433) is housed in the gathering sill (53) and can moves in gathering sill (53).
19. power tool as claimed in claim 14, it is characterized in that: described chuck (2) also comprises around sleeve (3) and fairlead (6) axial with respect to sleeve (3) and that circumferencial direction fixedly installs, described fairlead (6) is provided with the stopper slot (62) that radially runs through, and described latch segment (7) can radially pass described stopper slot (62).
20. power tool as claimed in claim 14, it is characterized in that: described chuck (2) also comprises the elastic parts (8) that is arranged between jacket assembly (4) and the sleeve (3), first flexible member (81) that cooperates and provide jacket assembly (4) axially to reset with jacket assembly (4) is provided described elastic parts (8), and cooperates with rotary sleeve (5) and rotary sleeve (5) second flexible member (82) that circumferencial direction resets is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101754513A CN101733736B (en) | 2008-11-07 | 2008-11-07 | Chuck and power tool using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101754513A CN101733736B (en) | 2008-11-07 | 2008-11-07 | Chuck and power tool using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733736A CN101733736A (en) | 2010-06-16 |
| CN101733736B true CN101733736B (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101754513A Expired - Fee Related CN101733736B (en) | 2008-11-07 | 2008-11-07 | Chuck and power tool using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101733736B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109394487B (en) * | 2018-11-21 | 2021-04-06 | 深圳市倍轻松科技股份有限公司 | Multifunctional nursing equipment and manufacturing method |
| CN109950834B (en) * | 2019-03-04 | 2024-01-23 | 中国建筑第八工程局有限公司 | Attached cable laying equipment |
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|---|---|---|---|---|
| US4626146A (en) * | 1984-04-16 | 1986-12-02 | Hilti Aktiengesellschaft | Tool holder for a drilling or a chiseling device |
| EP1619000A1 (en) * | 2001-10-26 | 2006-01-25 | BLACK & DECKER INC. | Drilling and/or hammering tool |
| CN201067895Y (en) * | 2007-06-07 | 2008-06-04 | 梁宗杰 | Electric hammer device |
| CN201291446Y (en) * | 2008-11-10 | 2009-08-19 | 苏州宝时得电动工具有限公司 | Clamping head and power tool employing the clamping head |
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2008
- 2008-11-07 CN CN2008101754513A patent/CN101733736B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4626146A (en) * | 1984-04-16 | 1986-12-02 | Hilti Aktiengesellschaft | Tool holder for a drilling or a chiseling device |
| EP1619000A1 (en) * | 2001-10-26 | 2006-01-25 | BLACK & DECKER INC. | Drilling and/or hammering tool |
| CN201067895Y (en) * | 2007-06-07 | 2008-06-04 | 梁宗杰 | Electric hammer device |
| CN201291446Y (en) * | 2008-11-10 | 2009-08-19 | 苏州宝时得电动工具有限公司 | Clamping head and power tool employing the clamping head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101733736A (en) | 2010-06-16 |
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