CN107214655B - The screw driving device being used together with impact driver - Google Patents

The screw driving device being used together with impact driver Download PDF

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Publication number
CN107214655B
CN107214655B CN201710464500.4A CN201710464500A CN107214655B CN 107214655 B CN107214655 B CN 107214655B CN 201710464500 A CN201710464500 A CN 201710464500A CN 107214655 B CN107214655 B CN 107214655B
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clutch
drive shaft
sleeve
screwdriver head
socket
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CN107214655A (en
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吴昆霖
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吴昆霖
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket

Abstract

The invention discloses a kind of screw driving devices being used together with impact driver, comprising: a drive shaft, with a driving end, with the socket end of annular wall;Annular wall has multiple radial holes, radial hole keeps a clutch bearing respectively, clutch bearing has the cylindrical body of truncated conical end, one hollow clutch sleeve, it is with the bottom end Duan ﹑ Ding and central passage, the top of central passage allows that end is driven to pass through but do not allow socket end to pass through, hollow clutch sleeve has an annular groove in the bottom end of central passage, annular groove is suitable for accommodating corresponding clutch bearing when the drive shaft is in the clutch position, so that the frustoconical end of clutch bearing is detached from screwdriver head and is maintained in the corresponding radial hole;One deep-controlled sleeve, around the bottom end of the hollow clutch sleeve, deep-controlled sleeve has a bottom, and bottom has the channel extended through for the screwdriver head;And a spring, to push the drive shaft to activation point.

Description

The screw driving device being used together with impact driver
Technical field
Impact driver is used in the present invention relates to a kind of screw driving device, especially one kind to control screw and be driven Into the screw driving device of workpiece depth.
Background technique
Conventional devices using electric tool (such as electric drill or impact driver) driving screw are known in the art 's.Such as No. 098218832 patent disclosure of TaiWan, China " power transmission formula screw screws in and exits dual-purpose be automatically stopped Device ", for that can work very good for providing the electric drill driving of flat sliding ﹑ continuous driving power.However, due to building at present Industry uses increasingly longer screw (Luo Zheng), cause electric drill inefficient in terms of driving these screws.Therefore, it is equipped with punching The screw driving device for hitting driver is being used in the long screw of driving.The impact driver is provided needed for driving long screw Torque is shaken, while screw driving device can control screw and penetrate the depth of workpiece to optimize screw and keep intensity.
However, the concussion effect of screw driving device and impact driver may cause the round bearing of screw driving device Destroy the shank edge of its screwdriver head for being maintained at activation point.When this happens, bearing cannot hold screwdriver head again Shank, and can not be freely rotated in activation point.Therefore, before the tip of screwdriver head reaches the limit of its service life Screwdriver head must be replaced.
Summary of the invention
Therefore, the purpose of the present invention is to provide a kind of screw driving device being used together with impact driver, the punchings It is upper simple in construction and operation to hit driver, and not will cause the peeling for the bottle opener head edge being kept.
Based on this, the present invention provides a kind of screw driving device being used together with impact driver, comprising: a driving Axis has the driving end being suitable for by impact driver engages and drives, and the socket end with annular wall, the annular wall Be formed as the socket to accommodate and keep a screwdriver head, which has multiple radial holes, which keeps one respectively Clutch bearing to engage the screwdriver head in an activation point, and is detached from the screwdriver head in a clutch position, the clutch shaft Holding is the cylindrical body with truncated conical end, to engage the screwdriver head in the activation point.One hollow clutch sleeve, A central passage with mono- bottom end a Ding Duan ﹑ and the receiving drive shaft, the size on the top of the central passage are set as allowing this The driving end of drive shaft passes through, but the socket end of the drive shaft is not allowed to pass through, and the hollow clutch sleeve is at the center The bottom end in channel has an annular groove, and the size of the annular groove is suitable for accommodating when the drive shaft is in the clutch position corresponding The clutch bearing, so that the frustoconical end of the clutch bearing is detached from the screwdriver head but is maintained at the corresponding radial hole It is interior.One deep-controlled sleeve, surrounds the bottom end of the hollow clutch sleeve, which has a bottom, the bottom Portion has the channel extended through for the screwdriver head.And a spring, to push the drive shaft to the activation point.
The present invention further provides a kind of screw driving devices being used together with impact driver, comprising: a drive shaft, It has the driving end being suitable for by impact driver engages and drives, and the socket end with annular wall, the annular wall shape As the socket to accommodate and keep a screwdriver head, which has multiple radial holes, the radial hole keep respectively one from Clutch bearing to engage the screwdriver head in an activation point, and is detached from the screwdriver head in a clutch position, to allow the bottle opener Head is rotated freely relative to the drive shaft in the clutch position, which is with a circular outer ends and butt circle The cylindrical body of tapered end, to engage the screwdriver head in the activation point.One hollow clutch sleeve has a Ding Duan ﹑ mono- Bottom end and the central passage for accommodating the drive shaft, the size on the top of the central passage are set as allowing the driving of the drive shaft End passes through, but the socket end of the drive shaft is not allowed to pass through, which has in the bottom end of the central passage One annular groove, the size of the annular groove are suitable for accommodating the corresponding clutch bearing when the drive shaft is in the clutch position Outer end, so that the clutch bearing is detached from the screwdriver head but is maintained in the corresponding radial hole.One deep-controlled sleeve, encloses Around the bottom end of the hollow clutch sleeve, which has a bottom, which, which has to extend for the screwdriver head, leads to The channel crossed.And a spring, to push the drive shaft to the activation point.
The present invention furthermore provides a kind of screw driving device being used together with impact driver, comprising: a driving Axis has the driving end being suitable for by impact driver engages and drives, and the socket end with annular wall, the annular wall With the multiple radial holes being spaced apart on one first sagittal plane of the socket end and in one second radial direction of the socket end The multiple radial holes being spaced apart in plane, the corresponding radial hole keep a clutch bearing respectively to engage in an activation point One screwdriver head and it is detached from the screwdriver head in a clutch position, to allow the screwdriver head in the clutch position relative to the drive shaft It rotates freely, each clutch bearing is that have the cylinder ends of circular outer ends and conical butt inner cylinder by screw bits It is bonded on activation point, which is the cylindrical body with truncated conical end, to be somebody's turn to do in activation point engagement Screwdriver head.One hollow clutch sleeve, the central passage with mono- bottom end a Ding Duan ﹑ and the receiving drive shaft, the center The size on the top in channel is set as allowing the driving end of the drive shaft to pass through, but does not allow the socket end of the drive shaft logical It crosses, which has two annular grooves in the bottom end of the central passage, this waits the size of annular grooves to be suitable for working as should Drive shaft accommodates the clutch of one of first sagittal plane and second sagittal plane when being in the clutch position The outer end of bearing, so that the corresponding inner end of the clutch bearing is detached from the screwdriver head but is maintained in the corresponding radial hole.One Deep-controlled sleeve is connected to the bottom end of the hollow clutch sleeve, which has a bottom, bottom tool There is the channel extended through for the screwdriver head.And a spring, to push the drive shaft to the activation point.
Detailed description of the invention
Fig. 1 is the perspective view of screw driving device according to the present invention;
Fig. 2 is the stereogram exploded view of the screw driving device of Fig. 1;
Fig. 3 is shown in the stereogram exploded view of the second embodiment of the screw driving device of Fig. 1;
Fig. 4 is to be shown in the screw driving device of Fig. 2 along the section plan of the 4-4 line of Fig. 1;
Fig. 5 is to be shown in the screw driving device of Fig. 3 along the section plan of the 4-4 line of Fig. 1;
Fig. 6 is the detailed view for being shown in one of clutch bearing of screw driving device of Fig. 4, Fig. 5;
Fig. 7 is the section plan of the screw driving device that is shown in Fig. 4 in clutch position;
Fig. 8 is the section plan of the screw driving device that is shown in Fig. 5 in clutch position;
Fig. 9 is to show that the screw driving device of Fig. 4 is used in latched position to pull up one and cutd open by the plane of driving screw View.
Specific embodiment
Fig. 1 is the perspective view of screw driving device 10 according to the present invention.
The screw driving device 10 has a drive shaft 12, which, which has, is suitable for being engaged and portable by one One driving end 14 of electric impacting driver (not shown) driving;The portable electric tool is to belong to prior art.
One hollow clutch sleeve 16 accommodates the drive shaft 12;One locking convex portion 17 is formed in the side of drive shaft 12 to incite somebody to action Screw driving device 10 is locked in a latched position to remove by driving screw.
Illustrate below with reference to Fig. 9, a deep-controlled sleeve (nose cone) 18 grasps the bottom end of hollow clutch sleeve 16, the depth Spending control sleeve 18 has a bottom 20, and a screwdriver head 22 is accommodated in the bottom end of drive shaft 12 by the bottom.
Illustrate below with reference to Fig. 4 to Fig. 8, when screw driving device 10 is in activation point, the screwdriver head 22 is with drive shaft 12 rotations, and when screw driving device 10 is in clutch position, the screwdriver head 22 and the engagement of drive shaft 12 are released.
Deep-controlled sleeve 18 be it is replaceable, to allow to change the screw driven by screw driving device 10 (screw) Depth;If desired, can have another deep-controlled sleeve 18 of different height to reach by being attached.
For this purpose, the axial slits 24 in the top edge of deep-controlled sleeve 18 can make deep-controlled sleeve 18 inwardly projecting antelabium 26 and the groove 28 of the respective shapes in hollow clutch sleeve 16 are detached from (for example, see figure 4)。
Fig. 2 is the stereogram exploded view of screw driving device 10 shown in FIG. 1.
The driving end 14 of drive shaft 12 extends through the central passage 40 in hollow clutch sleeve 16;The central passage 40 Top extend internally to form a retainer 42, the driving end 14 for being dimensioned to allow drive shaft 12 of the retainer is logical It crosses, but the socket end 44 of drive shaft 12 is not allowed to pass through.Lock up gap 43 in retainer 42 allow lock projection seat 17 by with Screw driving device is locked in latched position, the aforementioned person will be illustrated below in reference to Fig. 9.
Multiple radial holes 46 to pass through the socket end 44 of drive shaft 12 accommodate clutch bearing 50 (with reference to Fig. 4 respectively To shown in Fig. 6).In this embodiment, there are three be radially spaced 120 on sagittal plane°Radial hole 46.Clutch bearing 50 engage screwdriver head 22 at the activation point of screw driving device, as described in below with reference to fig. 4 to fig. 6, so that screwdriver head 22 It is rotated together with screw driving device 10.
When screw driving device 10 is in clutch position, clutch bearing 50 is disengaged with screwdriver head 22, such as following Referring to described in Fig. 7, Fig. 8, screwdriver head is unrelated with the rotation of screw device 10, to control the screw driven by screw driving device 10 Depth.
The top of one helical spring 58 leans against on the bottom end 59 of drive shaft 12, and the bottom end of helical spring 58 and depth control The inner bottom surface of sleeve 18 processed engages, as shown in Figure 4, Figure 5.Drive shaft 12 is pushed to screw driving device 10 by helical spring 58 Activation point.
One toroidal magnet 60 is accommodated in the socket 62 (referring to fig. 4, Fig. 5) of the bottom 20 of deep-controlled sleeve 18.The magnetic Body 60 magnetically attracts the steel screw (not shown) being placed on screwdriver head 22, so that screw is maintained on screwdriver head 22, until Screw is driven by screw driving device 10.
Fig. 3 is the stereogram exploded view for showing another embodiment 10a of screw driving device 10 of Fig. 1.Embodiment 10a with The embodiment 10 described above with reference to Fig. 2 is identical, the socket end of the drive shaft 12 in addition to the socket end 44a of drive shaft 12a compared with Fig. 2 Other than 44 is longer.
Clutch sleeve 16a is correspondingly longer than clutch sleeve 16, and screwdriver head 22a be correspondingly longer than it is shown in Fig. 2 Screwdriver head 22.The extra length of socket end 44a, hollow clutch sleeve 16a and screwdriver head 22a pass through hollow clutch sleeve The socket end 44a of 12a accommodates multiple radial holes 48.Each radial hole 48 equally accommodates clutch bearing 50, such as below with reference to Fig. 5 To described in Fig. 8.
In this embodiment, radial hole 46 is spaced 120 on the first sagittal plane°, and radial hole 48 is radial first 120 are spaced apart on the second sagittal plane above plane°.Each radial hole 46 is spaced 60 ° with any adjacent radial hole 48.
Fig. 4 be show Fig. 2 screw driving device 10 along Fig. 1 4-4 line section plan, wherein screwdriver head 22 with The rotation of drive shaft 12 and rotate.
The socket end 44 of drive shaft 12 has annular wall 64, and annular wall 64 is formed as accommodating and keeping the socket of screwdriver head 22 66.Annular wall 64 is run through by multiple radial holes 46 (only shows one, but usually there are three radial as described above in cross-section Hole 46).
When activation point shown in screw driving device 10 is in, radial hole 46 receives clutch bearing 50 respectively to connect The plane on hexagonal driver head 22 is closed, and screwdriver head 22 is made to be detached from clutch position shown in Fig. 7.Hollow clutch sleeve 16 have annular groove 72 in the bottom end of central passage 40, which is dimensioned to be in when screw driving device 10 Corresponding clutch bearing 50 is received when clutch position, so that clutch bearing 50 is detached from screwdriver head 22 but is maintained at corresponding diameter Into hole 46.
Ball bearing 74 of the frictional fit in axial hole 76 supports the top of screwdriver head 22, to allow screwdriver head 22 to keep It is static, while drive shaft 12 rotates freely when screw driving device 10 is in clutch position, it is such as following described in reference diagram 7.
It is crawled and engages the recess 81 in screwdriver head 22 in the snap ring 78 in the radial groove 80 in the end of socket 66, with Screwdriver head 22 is removably retained in socket 66.
Fig. 5 is to be shown in the screw driving device of the activation point of Fig. 3 along the section plan of the 4-4 line of Fig. 1.Its In, screwdriver head 22 is rotated with the rotation of drive shaft 12.
There is the socket end 44a of drive shaft 12a annular wall 64a, annular wall 64a to be formed with receiving and keep screwdriver head The socket 66a of 22a.Annular wall 64a is run through by multiple 46 ﹑ 48 of radial hole (only shows one, but logical as described above in cross-section Often there are three radial hole 46 and three radial holes 48).
Radial hole 46 keeps clutch bearing 50a respectively, and activation point shown in being in as screw driving device 10a When, radial hole 48 keeps clutch bearing 50b respectively, and grade clutch bearings 50b is engaged respectively on hexagonal driver head 22a Plane, and clutch position shown in Fig. 8 is detached from screwdriver head 22a respectively.
There are two annular groove 72a ﹑ 72b, annular groove 72a ﹑ in the bottom end of central passage 40 tool by hollow clutch sleeve 16a Being dimensioned to of 72b accommodates corresponding clutch bearing 50a ﹑ 50b when screw driving device 10a is in clutch position, So that clutch bearing 50a ﹑ 50b is detached from screwdriver head 22a but is maintained in corresponding 46 ﹑ 48 of radial hole.
Ball bearing 74 of the frictional fit in axial hole 76 supports the top of screwdriver head 22a, to work as screw driving device Permission screwdriver head 22a is remain stationary when 10a is in clutch position while drive shaft 12a is rotated freely, as below with reference to Fig. 8 institute It states.
It is crawled and engages the recess 81 in screwdriver head 22 in the snap ring 78 in the radial groove 80 in the end of socket 66, with Removably screwdriver head 22 is maintained in socket 66.
Fig. 6 is the detailed view for being shown in one of clutch bearing 50 of screw driving device of Fig. 4, Fig. 5.
The size and shape of all 50 ﹑ 50a and 50b of clutch bearing are identical.In one embodiment, clutch bearing 50 be the cylindrical body with conical butt inner end 52 and circular outer ends 54.The cylindrical body has total length " a ".Circular outer ends 54 Length " b " be 1/4 (0.25a).The length " c " in cylindrical body middle section 56 is 1/2a (0.5a);And conical butt inner end 52 Length be 1/4 (0.25a).The diameter in cylindrical body middle section 56 be 1a (1.0a), the plane 57 at conical butt end 52 diameter " E " is 3/4a (0.75a).The radius " r " of circular outer ends 54 is 1/2a (0.5a).In one embodiment, clutch bearing 50 is 4mm long, diameter 4mm, cylindrical body middle section are 2mm long.The radius of circular outer ends is 2mm, and circular outer ends 54 are 1mm long.Butt Conical inner end 52 is 1mm long, and the diameter of plane 57 is 3mm.It should be noted that the both ends of clutch bearing 50 can be butt circle Taper.
Fig. 7 is the section plan of the screw driving device 10 that is shown in Fig. 4 in clutch position.In clutch position, Screwdriver head 22 is released from the clutch bearing 50 of re-spective engagement, so that screw 100 is no longer driven by screw driving device 10.
When screw 100 is driven into a working surface 102, the bottom end 20 of deep-controlled sleeve 18 contacts the worksheet Face 102 and drive shaft 12 slide downward through the central passage 40 of hollow clutch sleeve 16, until corresponding radial hole 46 It is aligned with the annular groove 72 in hollow clutch sleeve 16, and is engaged in driven screw by screwdriver head 22 and applies Pressure and force corresponding clutch bearing 50 outwardly enter annular groove 72.
Once corresponding clutch bearing 50 enters annular groove 72, no longer with each plane contact on screwdriver head 22, And screw driving device 10 is in clutch position.Therefore, even if drive shaft 12 can be continued to rotate by impact driver, bottle opener Head is also remain stationary, and screw is no longer driven.Screw is driven into the depth of working surface 102 therefore by depth control Sleeve 18 processed controls.
When the downward pressure in drive shaft 12 is released by switching impulse driver, and screw driving device 10 from When working surface is removed, which up pushes drive shaft 12, and screw driving device 10 is back to shown in Fig. 4 Activation point.When screw driving device 10 returns to activation point, the ramped bottom surface 82 of annular groove 72 forces each clutch shaft 50 are held to contact with the respective planes of screwdriver head 22.
Fig. 8 is the section plan of the screw driving device that is shown in Fig. 5 in clutch position.In clutch position, rise Subheader 22a and each clutch bearing 50a ﹑ 50b of re-spective engagement discharges, so that screw 100 is no longer driven by screw driving device 10a It is dynamic.
When screw 100 is driven into working surface 102, the bottom 20 of deep-controlled sleeve 18 contacts working surface 102, and when screw 100 is driven into working surface 102, drive shaft 12a slides downward through hollow clutch sleeve The central passage 40 of 16a, until corresponding 46 ﹑ 48 of radial hole is aligned in the annular groove 72a ﹑ in hollow clutch sleeve 16a 72b, and corresponding clutch bearing 50a ﹑ 50b by the screwdriver head 22a for engaging driven screw 100 be outwards forced into Enter annular groove 72a ﹑ 72b.
Once each clutch bearing 50a ﹑ 50b enter corresponding annular groove 72a ﹑ 72b i.e. no longer with it is each on screwdriver head 22a A plane contact, and screw driving device 10a is in the position being crawled.Therefore, even if drive shaft 12a can pass through impact Driver continues to rotate, and screwdriver head 22a is also remain stationary, and screw 100 is no longer driven.Screw is driven into work The depth on surface 102 is thus controlled by deep-controlled sleeve 18.
When the downward pressure on drive shaft 12a is discharged by switching impulse driver, and screw driving device 10a When removing working surface 102, helical spring 58 pushes up drive shaft 12a, and screw driving device 10a returns to Fig. 5 institute The activation point shown.
When screw driving device 10a returns to activation point, the corresponding ramped bottom surface 82a ﹑ of each annular groove 72a ﹑ 72b 82b forces each plane contact of each clutch bearing 50a ﹑ 50b Yu screwdriver head 22a.
Fig. 9 is to be shown in the screw driving device 10 of Fig. 4 to be locked in reversed activation point with for pulling up from workpiece By the section plan of driving screw.
In order to which screw driving device 10 is placed on reverse drive position, locking convex portion 17 is forced to pass through lock up gap down 43 (ginsengs Fig. 2) are to resist the pressure of helical spring 58, as described in above-mentioned reference Fig. 2.And hollow clutch sleeve rotates sufficient Enough locking convex portions 17 far with crawl below the retainer 42 of the top end of hollow clutch sleeve 16.
In opposite activation point, each clutch bearing 50 below the annular groove 72 in hollow clutch sleeve 16 simultaneously And the respective planes on screwdriver head 22 are engaged, so that the drive shaft 12 rotated in either direction rotates in a same direction Subheader.Screw driving device 10 returns to activation point shown in the 4th figure by rotating hollow clutch sleeve 16, keeps simultaneously Drive shaft 12 is static, until locking convex portion 17 is aligned with lock up gap 43, and is pushed up by helical spring 58.
Fig. 5 is operated in an identical manner with by screw driving device 10a to the embodiment of the present invention system shown in Fig. 8 It is locked in reversed activation point.
Embodiments of the invention described above are only exemplary, and therefore, the scope of the present invention is only limited by claim It is fixed.

Claims (18)

1. a kind of screw driving device being used together with impact driver, it is characterised in that: include:
One drive shaft has the driving end being suitable for by impact driver engages and drives, and the socket with annular wall End, the annular wall are formed as the socket to accommodate and keep a screwdriver head, which has multiple radial holes, the radial hole A clutch bearing is kept respectively, to engage the screwdriver head in an activation point, and is detached from the screwdriver head in a clutch position, The clutch bearing is the cylindrical body with truncated conical end, to engage the screwdriver head in the activation point;The drive shaft The socket end include three radial holes on one first sagittal plane of the socket end, and the one of the socket end Three radial holes on two sagittal planes, second sagittal plane are spaced apart with first sagittal plane;
One hollow clutch sleeve, the central passage with mono- bottom end a Ding Duan ﹑ and the receiving drive shaft, the central passage The size on top be set as allowing the driving end of the drive shaft to pass through, but the socket end of the drive shaft is not allowed to pass through, should Hollow clutch sleeve has an annular groove in the bottom end of the central passage, which includes spaced apart from each other one first annular Slot and one second annular groove, accordingly should be from for accommodating when the drive shaft of the screw driving device is in the clutch position Clutch bearing, so that the frustoconical end of the clutch bearing is detached from the screwdriver head but is maintained at corresponding first and second radial direction In radial hole in plane;
One deep-controlled sleeve, surrounds the bottom end of the hollow clutch sleeve, which has a bottom, the bottom Portion has the channel extended through for the screwdriver head;And
One spring, to push the drive shaft to the activation point.
2. the screw driving device according to claim 1 being used together with impact driver, it is characterised in that: the clutch Device bearing includes a circular outer ends, in order to which the clutch bearing is moved to the activation point from the clutch position.
3. the screw driving device according to claim 1 being used together with impact driver, it is characterised in that: the first diameter 120 ° are spaced on the first sagittal plane to hole, the second radial hole is spaced apart 120 ° on the second sagittal plane.
4. the screw driving device according to claim 1 being used together with impact driver, it is characterised in that: further include One locking convex portion of the side above the socket end of the drive shaft is set, for the screw driving device to be locked in reversely Activation point with from a workpiece extract a driven screw.
5. the screw driving device according to claim 4 being used together with impact driver, it is characterised in that: further include At least one lock up gap in the top of the hollow clutch sleeve is set, to allow the locking convex portion to pass through with by the spiral shell Silk driving device is locked in reversed activation point, when the locking convex portion passes through the lock up gap and the hollow clutch sleeve Rotation enough to it is remote when, be able to grab the locking convex portion in the inside of the hollow clutch sleeve.
6. the screw driving device according to claim 1 being used together with impact driver, it is characterised in that: further include An axial slits spaced apart in the top of the deep-controlled sleeve are set, to allow the deep-controlled sleeve to be removed simultaneously And another control sleeve with different depths is replaced, to change the depth that a screw is driven into a workpiece.
7. the screw driving device according to claim 1 being used together with impact driver, it is characterised in that: the depth The bottom of control sleeve is less than the top of the deep-controlled sleeve.
8. the screw driving device according to claim 1 being used together with impact driver, it is characterised in that: the depth The bottom of control sleeve includes a socket, which surrounds the channel that the screwdriver head extends through, which accommodates and keep One toroidal magnet uses the bottom end that a screwdriver head is kept when the drive shaft is in the activation point.
9. the screw driving device according to claim 1 being used together with impact driver, it is characterised in that: the first ring Shape slot receives the snap ring engaged with the screwdriver head with one second annular groove, to releasably hold the screwdriver head in the drive shaft The socket end.
10. a kind of screw driving device being used together with impact driver, it is characterised in that: include: a drive shaft, have Suitable for being formed as using by the driving end that impact driver engages and drives, and the socket end with annular wall, the annular wall To accommodate and keep the socket of a screwdriver head, which has multiple radial holes, which keeps a clutch shaft respectively It holds, to engage the screwdriver head in an activation point, and the screwdriver head is detached from a clutch position, to allow the screwdriver head opposite It is rotated freely in the drive shaft in the clutch position, which is to have a circular outer ends and a conical butt end The cylindrical body in portion, to engage the screwdriver head in the activation point;The socket end of the drive shaft includes the one of the socket end Three radial holes on first sagittal plane, and three radial holes on one second sagittal plane of the socket end, this Two sagittal planes are spaced apart with first sagittal plane, a hollow clutch sleeve, are had mono- bottom end a Ding Duan ﹑ and are accommodated and are somebody's turn to do One central passage of drive shaft, the size on the top of the central passage are set as allowing the driving end of the drive shaft to pass through, but not The socket end of the drive shaft is allowed to pass through, which has an annular groove in the bottom end of the central passage, should Annular groove includes spaced apart from each other one first annular slot and one second annular groove, for working as the drive shaft of the screw driving device The outer end that the corresponding clutch bearing is accommodated when in the clutch position, so that the clutch bearing is detached from the screwdriver head but guarantor It holds in the radial hole on corresponding first and second sagittal plane;It is received when in the clutch position and is maintained at the radial hole In the clutch bearing outer end;
One deep-controlled sleeve, surrounds the bottom end of the hollow clutch sleeve, which has a bottom, the bottom Portion has the channel extended through for the screwdriver head;And
One spring, to push the drive shaft to the activation point.
11. the screw driving device according to claim 10 being used together with impact driver, it is characterised in that: first Radial hole is spaced 120 ° on the first sagittal plane, and the second radial hole is spaced apart 120 ° on the second sagittal plane.
12. the screw driving device according to claim 10 being used together with impact driver, it is characterised in that: this The adjacent radial hole of each of corresponding radial hole and second sagittal plane in one sagittal plane deviates 60 °.
13. the screw driving device according to claim 10 being used together with impact driver, it is characterised in that: the depth Spending control sleeve can dismantle from the hollow clutch sleeve.
14. the screw driving device according to claim 13 being used together with impact driver, it is characterised in that: the depth The top edge for spending control sleeve includes an axial slits, in order to which the deep-controlled sleeve is de- from the hollow clutch sleeve From.
15. a kind of screw driving device being used together with impact driver, it is characterised in that: include:
One drive shaft has the driving end being suitable for by impact driver engages and drives, and the socket with annular wall End, the annular wall have the multiple radial holes being spaced apart on one first sagittal plane of the socket end and in the socket ends The multiple radial holes being spaced apart on one second sagittal plane, the corresponding radial hole keep a clutch bearing respectively to drive one It moves one screwdriver head of engagement position and is detached from the screwdriver head in a clutch position, to allow the screwdriver head opposite in the clutch position It is rotated freely in the drive shaft, each clutch bearing is the cylinder ends with circular outer ends and conical butt inner cylinder Screw bits are bonded on activation point, which is the cylindrical body with truncated conical end, in the driving The engagement position screwdriver head;
One hollow clutch sleeve, the central passage with mono- bottom end a Ding Duan ﹑ and the receiving drive shaft, the central passage The size on top be set as allowing the driving end of the drive shaft to pass through, but the socket end of the drive shaft is not allowed to pass through, should Hollow clutch sleeve has two annular grooves in the bottom end of the central passage, and the size of the annular groove is suitable at the drive shaft The outer of the clutch bearing of one of first sagittal plane and second sagittal plane is accommodated when the clutch position End, so that the corresponding inner end of the clutch bearing is detached from the screwdriver head but is maintained in the corresponding radial hole;
One deep-controlled sleeve, is connected to the bottom end of the hollow clutch sleeve, which has a bottom, should Bottom has the channel extended through for the screwdriver head;And
One spring, to push the drive shaft to the activation point.
16. the screw driving device according to claim 15 being used together with impact driver, it is characterised in that: this The adjacent radial hole of each of respective radial holes and second sagittal plane in one sagittal plane deviates 60 °.
17. the screw driving device according to claim 15 being used together with impact driver, it is characterised in that: the depth Spending control sleeve can dismantle from the hollow clutch sleeve.
18. the screw driving device according to claim 17 being used together with impact driver, it is characterised in that: the depth The top edge for spending control sleeve includes an axial slits, in order to which the deep-controlled sleeve is de- from the hollow clutch sleeve From.
CN201710464500.4A 2017-06-19 2017-06-19 The screw driving device being used together with impact driver Active CN107214655B (en)

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