CN103831795B - Hand-held tool - Google Patents
Hand-held tool Download PDFInfo
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- CN103831795B CN103831795B CN201210486677.1A CN201210486677A CN103831795B CN 103831795 B CN103831795 B CN 103831795B CN 201210486677 A CN201210486677 A CN 201210486677A CN 103831795 B CN103831795 B CN 103831795B
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
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- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
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- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The present invention relates to a kind of hand-held tool, including: casing；Output shaft, is supported in casing, has the axially arranged accepting hole accommodating work head；Work head support mechanism, it is at least partially arranged in casing, described work head support mechanism has several receiving spaces being set up in parallel for support works head, and described work head support mechanism can be adjusted to the position that at least one receiving space is the most corresponding with described accepting hole；Connector, is arranged in casing, and described connector can drive work head to be in the operating position being positioned at accepting hole or the collecting position being positioned at work head support mechanism；Described connector closes on one end of output shaft and is provided with support means, described support means can abut with work head or separate, described support means includes multiple rolling member, when described support means abuts with work head and compressed by work head, described rolling member can rotate relative to connector under the effect that work head rotates.
Description
Technical field
The present invention relates to a kind of hand-held tool, particularly relate to a kind of storage realizing work head and quick-replaceable rifle
Bore class hand-held tool.
Background technology
In existing drill gun class hand-held tool, generally include electric drill, screwdriver, impact brill etc..
Screwdriver is for by a kind of conventional electric tool on screw-driving to workpiece.Need to twist during using
The when of the screw of tight different size, change different screwdriver bits according to the difference of screw specification, i.e. to install original
Screwdriver bit takes off, and then loads onto the screwdriver bit of another kind of specification.
Electric drill is for holing on workpiece, and in operation process, chuck clamping drill bit rotates constantly.
Generally, user needs when carrying out operation to carry out different types of operation, such as the turn of the screw, boring etc..So, need
Want user to prepare the electric tool of number of different types or the work head of number of different types, also the most more to bring into
Row operation, especially is needing first to beat under the operating mode that screw is twisted in pre-hole again, needs between drill bit and screwdriver bit constantly the most more
Change, thus can bring great inconvenience to operator, on the one hand cause and more change jobs loaded down with trivial details, on the other hand take off
Work head is placed everywhere and is easily lost.Although, have some can realize the storage of work head and quickly the most more in some hand-operated tools
Change, but owing to the inherent defect of hand-operated tools, i.e. moment of torsion are little, operation is hard so that operator is easy to fatigue, causes efficiency
Lowly, be not suitable for using as professional instrument in the industry.
Chinese invention patent CN101563192B discloses the toolroom machine of a kind of cutter for rotatable driving, this instrument
Facility have motor and actuating device, and actuating device is provided with cutter changing storehouse.It is provided with for accommodating screwdriver bit on cutter changing storehouse
Cutter room.One operation saddle can be moved axially forwards to pass through one of cutter room and drive is positioned in this cutter room
Screwdriver bit enters cutter dop, or axially rearward movement is returned by the screwdriver bit being arranged in the Magnet band cutter dop of its front end
To cutter room.One actuator is for carrying out axial limiting to operation saddle, and actuator includes that axially props up an operation cunning
The support lever of part, when screwdriver bit changed by needs, pressure button just can release the support lever axial limiting to operation saddle,
Thus can move operation saddle to be allowed to exit cutter dop with screwdriver bit, and drive screwdriver bit to return to cutter room, operation is sliding
Part exits cutter room, and rotary cutter is changed storehouse and be may be selected by another screwdriver bit.When this toolroom machine works when, operate saddle
Offseting with the afterbody of cutter dop, cutter dop rotates and operates saddle and can not rotate, so operation saddle and cutter dop
Between sliding friction very big, both affected work efficiency, tool wear is very fast simultaneously, decreases the service life of instrument.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide the hand-held tool of length in a kind of service life.
The technical solution adopted for the present invention to solve the technical problems is: a kind of hand-held tool, including: casing；Output
Axle, is supported in casing, has the axially arranged accepting hole accommodating work head；Work head support mechanism, is at least partly arranged
In casing, described work head support mechanism has several receiving spaces being set up in parallel for support works head, described
Work head support mechanism can be adjusted to the position that at least one receiving space is the most corresponding with described accepting hole；Connector,
Being arranged in casing, described connector can drive work head to be in be positioned at the operating position of accepting hole or be positioned at work head and prop up
The collecting position of support mechanism；Described connector closes on one end of output shaft and is provided with support means, and described support means can be with work
Making head to abut or separate, described support means includes that multiple rolling member, described support means abut and by work with work head
When head compresses, described rolling member can rotate relative to connector under the effect that work head rotates.
Preferably, described support means includes the support member being rotatably provided on connector, and described support member can be with work
Making head to abut or separate, the plurality of rolling member is arranged between connector and support member.
Preferably, described support means includes the end face bearing being arranged between connector and support member.
Preferably, both end faces of the end face of described connector relative support and support member opposite joints at least one
Being provided with the annular groove arranged around output shaft axis, described rolling member partial receipt is in described annular groove.
Preferably, it is provided with wear-resistant gasket between described rolling member and connector and/or between rolling member and support member.
Preferably, one end that described support member can abut with work head is provided with magnet.
Preferably, described connector is provided with directive wheel, and described directive wheel radially can support with work head along output shaft
It is axial that the rotation axis of mechanism contacts and described directive wheel is perpendicular to output shaft.
Preferably, described connector being axially arranged with stopper slot along output shaft, described directive wheel is at least partly housed in limit
In the groove of position.
Preferably, described directive wheel, at least provided with a pair, is symmetrical arranged in the horizontal direction.
Preferably, described hand-held tool also includes: motor, is arranged in casing, and outputting rotary power；Driver
Structure, is arranged between motor and output shaft and the rotary power that motor exports can be passed to output shaft.
Compared with prior art, the invention has the beneficial effects as follows: the hand-held tool of the present invention is by setting on connector
Put the support means that can abut with work head, the friction of work head and connector can be reduced, the service life of tool for increasing,
The resistance that the head that simultaneously works rotates is little thus improves work efficiency.
Accompanying drawing explanation
Fig. 1 is that the direct current multifunction drill in preferred first embodiment of hand-held tool of the present invention is in running order
Time sectional view.
Fig. 2 is the part isometric exploded view of the direct current multifunction drill in Fig. 1.
Fig. 3 is the cross-sectional schematic along G-G line of the direct current multifunction drill in Fig. 1.
Fig. 4 is the cross-sectional schematic along H-H line of the direct current multifunction drill in Fig. 1.
Fig. 5 is the connector of the direct current multifunction drill in Fig. 1 sectional view when being unlocked.
Fig. 6 is the cross-sectional schematic along I-I line of the direct current multifunction drill in Fig. 5.
Fig. 7 is the cross-sectional schematic along J-J line of the direct current multifunction drill in Fig. 5.
Fig. 8 is the sectional view of the direct current multifunction drill in Fig. 1, and the head that now works returns to house storehouse, connector and collecting
Storehouse separates.
Fig. 9 is the cross-sectional schematic along O-O line of the direct current multifunction drill in Fig. 8.
Figure 10 is the cross-sectional schematic along P-P line of the direct current multifunction drill in Fig. 8.
Figure 11 is the sectional view of the direct current multifunction drill in Fig. 1, and the head that now works returns to house storehouse, connector and collecting
Storehouse separates.
Figure 12 is the cross-sectional schematic along Q-Q line of the direct current multifunction drill in Figure 11.
Figure 13 is the cross-sectional schematic along R-R line of the direct current multifunction drill in Figure 11.
Figure 14 is the sectional view of the direct current multifunction drill in Fig. 1, in now storage folder moves to another collecting storehouse
The position that work head is corresponding with output shaft.
Figure 15 is the cross-sectional schematic along T-T line of the direct current multifunction drill in Figure 14.
Figure 16 is the cross-sectional schematic along U-U line of the direct current multifunction drill in Figure 14.
Figure 17 is the sectional view of the direct current multifunction drill in Fig. 1, and the work head in now another houses storehouse is pushed into
In output shaft.
Figure 18 is the cross-sectional schematic along V-V line of the direct current multifunction drill in Figure 17.
Figure 19 is the cross-sectional schematic along W-W line of the direct current multifunction drill in Figure 17.
Figure 20 is the sectional view of the direct current multifunction drill in Fig. 1, and now automatic switching control equipment resets, and connector is by axially
Locking.
Figure 21 is the cross-sectional schematic along Y-Y line of the direct current multifunction drill in Figure 20.
Figure 22 is the cross-sectional schematic along Z-Z line of the direct current multifunction drill in Figure 20.
Figure 23 is the enlarged drawing of the direct current multifunction drill a part in Figure 21.
Figure 24 is that the direct current multifunction drill in preferred second embodiment of hand-held tool of the present invention is in work
Sectional view during state.
Figure 25 is the part isometric exploded view of the direct current multifunction drill in Figure 24.
Figure 26 is the sectional view of the direct current multifunction drill in Figure 24, and the head that now works returns to house storehouse, connector and receipts
Hold storehouse to separate.
Figure 27 is the sectional view of the direct current multifunction drill in Figure 24, in now storage folder moves to another collecting storehouse
The position that work head is corresponding with output shaft.
The stereo decomposing of the another kind of embodiment of the movable pulley mechanism in Figure 28 currently preferred direct current multifunction drill
Schematic diagram.
Figure 29 is the schematic top plan view of movable pulley mechanism in Figure 28.
Figure 30 is the sectional view along A1-A1 line of the movable pulley mechanism in Figure 29.
Figure 31 is the sectional view along A2-A2 line of the movable pulley mechanism in Figure 29.
Wherein:
1. casing 11. handle 13a. fore shell
14. upper cover 142. guide groove 143. second pin-and-holes
144. second bearing pin 145. sliding guide groove 146. second slits
147. first gathering sill 148 second gathering sill 2. motors
200. linkages 201. the first half connecting rod 202. the second half connecting rod
203. connecting rod 204. bayonet lock 2041. locating flanges
21. motor shaft 210. movable pulley 2101. fixtures
2102. steady pins 211,211a. first paragraph flexible cable 212,212a. second segment flexible cable
213. regulation screw 214. flexible member 215a, 215b. die casting heads
216. adjustment block 217. screws 218. regulate screw
22. gear-box 221. dividing plate 223. toothed wheel box cover plates
3a. drive mechanism 30a. pinion gear mechanism 301a. the first gear
302a. the second gear 303a. the 3rd gear 31a. planetary gear reducing mechanism
4a. output shaft 40. axle sleeve 403. external tooth
41,41a. accepting hole 51c, 51d. connector 511. Magnet
513. first pin-and-hole 514. first bearing pin 515. first slits
516. directive wheel 518. support member 519. rolling members
5191. wear-resistant gasket 52a. storage folder 521a. house storehouse
53b. slip lid 531. guide rail 532. lock pin
Locking piece of 57. lock dogs of 539c. stopper slot 55a.
571. extension 572. stopper slot 58a, 58b. pushing blocks
581. escape groove 582. guide rail 583. locating pieces
584. elongated slot 585. projection 6. batteries
7. press button 701. first chute 702. second chute
723c. straight flange 724c. hypotenuse 725. baffle plate
741. top 742a, 742b. afterbody 74c. guide plates
75c. stop column 79. oscillating deck 791. first pin
792. second pin 9a, 9b. work heads
Detailed description of the invention
Hand-held tool of the present invention preferred embodiment in, hand-held tool be can realize bore and screwdriver function
Hand-held type multifunctional electric drill, also has direct current in electric drill and dividing of exchanging, and present embodiment is preferably as a example by direct current multifunction drill
It is specifically described.
Shown in seeing figures.1.and.2, this direct current multifunction drill includes casing 1, motor 2, battery 6, drive mechanism 3a, company
Fitting 51a, work head support mechanism and output shaft 4a.Casing 1 is passed through screw (not shown) by symmetrical two half shells
Closing up and assemble, it has horizontal component and handle 11 part arranged in obtuse angle with horizontal component, currently preferred angle
Degree is between 100 degree to 130 degree, and such gripping handle 11 can be pleasant when operating.Be provided with on the top of handle 11 part by
Button switch 7, battery 6 is arranged on the bottom of handle 11 part of casing 1, and drive mechanism 3a is housed in the horizontal component of casing 1.
As preferred embodiment, battery 6 both can be integrally fixed at the inside of handle 11, it is also possible to is mounted in battery bag and leads to
Crossing battery bag to be installed in casing 1, this battery 6 can be lithium ion battery.It should be noted that lithium-ion electric described here
Pond be negative material be the general name of the rechargeable battery of elemental lithium, according to the difference of positive electrode, it may make up many systems, as
" lithium manganese " battery, " lithium ferrum " battery etc..In the present embodiment, lithium ion battery be a joint rated voltage be 3.6V(volt) lithium
Ion battery.Certainly, battery 6 can also be the battery types well known to those skilled in the art such as NI-G, ni-mh.
Drive mechanism 3a is included the planetary gear reducing mechanism driven by motor 2 by (being rear with the right side of drawing) before backward
31a and pinion gear mechanism 30a, wherein pinion gear mechanism 30a is connected with output shaft 4a and passes to defeated by the rotary motion of motor 2
Shaft 4a.Work head support mechanism is for housing different work heads, and it is normal that work head here refers mainly to direct current multifunction drill
Crosspoint tip screwdriver head, flat blade screwdriver bit, drill bit etc., by operation connector 51a move axially through work head support mechanism or
Leave work head support mechanism, it is possible to be quickly replaced between different work heads, thus electric drill can bore
Hole, tighten or unclamp different screws.
Motor in the preferred embodiment for the present invention is motor 2, and motor 2 has the motor extended anteriorly out from electric machine casing
Axle 21.Motor 2 is fixed in casing 1, and in a gear-box 22 is fixed on casing 1 and be positioned at the front portion of motor 2, gear-box 22 is used for
Housing planetary gear reducing mechanism 31a, casing 1 includes the fore shell 13 being connected to its front end, and pinion gear mechanism 30a is housed in fore shell
In 13.Pinion gear mechanism 30a includes the first gear 301a being connected with planetary gear reducing mechanism 31a, engages with the first gear
The second gear 302a and driven and synchronized the 3rd gear 303a of rotation by the second gear 302a, output shaft 4a last week
Being provided with external tooth 403 to fixing, the 3rd gear 303a engages with external tooth 403 thus drives output shaft 4a to rotate.Wherein planet tooth
Wheel reducing gear 31a is provided with arrangements for speed regulation, i.e. drives the by operation setting speed switch bar (not shown) in casing
Secondary gear circle moves axially the element engagement different from planetary gear reducing mechanism 31a thus realizes exporting different rotating speeds,
Such speed switches to technology well-known to those skilled in the art, and applicant does not repeats them here.
It is compacter that pinion gear mechanism 30a arranges the inner space that three gears are intended merely to make instrument, thus does not affects
Outside is attractive in appearance.It is of course also possible to be arranged as required to into a gear or two gears.It addition, drive mechanism 3a is not
Being confined to above-described form, drive mechanism can only include planetary gear reducing mechanism 31a, or only includes little gear mechanism
Structure 30a, or other rotary motion transmission mechanism, such as ratchet mechanism, turbine mechanism etc..Wherein motor shaft 21 extends and row
Star gear reduction 31a engages, and planetary gear reducing mechanism 31a communicates rotational motion to pinion gear mechanism 30a, little gear
Mechanism 30a drives output shaft 4a to rotate again.When so motor 2 runs, by planetary gear reducing mechanism 31a, pinion gear mechanism
30a, is finally exported by output shaft 4a.It can thus be seen that the driving-chain in present embodiment is motor-drive mechanism-output
Axle, i.e. connector can be easy to think of not as a part for driving-chain, certain those skilled in the art, and driving-chain also may be used
Be as motor-drive mechanism-connector-output shaft, i.e. connector be as the part of driving-chain.It addition, reducing gear by
Three stage planetary reduction and the two poles of the earth parallel axes deceleration system constitute and obtain wanted output speed, in other embodiments,
Depending on the rotating speed of required output, reducing gear can only include two-stage planetary reduction system, or other deceleration systems.
The head support mechanism box-like storage folder 52a the most substantially in cuboid that works in present embodiment, storage
The length direction of folder 52a is parallel to the axial of output shaft 4a, and the width of storage folder 52a has been set up in parallel two and has housed storehouse
521a, just can house long work head, such as drill bit, long screwdriver bit etc. in so housing storehouse 521a.Storage folder 52a phase
For casing 1 along the axial restraint of output shaft 4a, connector 51a moves axially relative to casing 1 and is housed in wherein one to drive
Work head 9a in individual collecting storehouse 521a enters output shaft 4a, or connector 51a inhales by being arranged on the Magnet 511 of its front end
Living in work head 9a and drive it to return to house in the 521a of storehouse, connector 51a here is only used for releasing or retracting work head
9a, not as a part for driving-chain.Storage folder 52a is supported in casing 1 and is positioned at the top of drive mechanism 3a, storage folder
Planetary gear reducing mechanism 31a axial overlap in 52a and drive mechanism 3a and with motor 2 part axial overlap, so can
Make complete machine compact, save space.
Slidably connecting in casing 1 has slip lid 53a, the edge of slip lid 53a to be provided with guide rail 531, and corresponding casing 1 sets
Having gathering sill (figure does not regards), slip lid 53a can slide axially relative to casing 1 in being arranged on gathering sill by its guide rail 531.When
So, it is also possible to be on slip lid 53a, to arrange gathering sill, the mode that casing 1 arranges guide rail makes slip lid 53a move, this embodiment party
Formula is moved axially by mobile slip lid 53a band follower link 51.
Storage folder 52a is supported in casing, and electric drill works when, slip lid 53a abuts with fore shell 13a, the most permissible
Storage folder 52a is closed with connector 51a；Electric drill more changes jobs when, slip lid 53a separates with fore shell 13a
And drive work head to return to house storehouse 521a.
Output shaft 4a is form of sleeve, and generally output shaft arranges the accepting hole 41 of six sides, can installment work in it
Head 9a, work head cross section is the hexagon matched with accepting hole 41, so can use the work head 9a of standard.Output shaft 4a leads to
Cross bearings on fore shell 13a.Certainly, accepting hole 41 can also be other shapes, as long as disclosure satisfy that output shaft 4a is permissible
Work head 9a is driven to rotate.
The automatic switching control equipment of automatic switchover work head it is provided with, say, that only on the multifunction drill of present embodiment
Slip lid 53a band follower link 51a to be operated leaves collecting storehouse 521a, releases the restriction to storage folder 52a motion, storage folder 52a
Effect at automatic switching control equipment is moved to next collecting storehouse 521a and position corresponding to output shaft 4, it is not necessary to operation
Person the most manual mobile storage folder 52a select work head.
Fig. 1 to Figure 22 show the first embodiment of currently preferred direct current multifunction drill.Present embodiment
In, automatic switching control equipment includes the movement conversion mechanism being arranged between storage folder 52a and slip lid 53a, and slip lid 53a linearly moves
Storage folder 52a is driven to translate along the direction the most angled with output shaft 4a by movement conversion mechanism, preferred translation
Direction is perpendicular to the axial of output shaft 4a.Here movement conversion mechanism includes chute 72c and the pivot being arranged on slip lid 53a
Axle is connected to the oscillating deck 79 of casing 1 upper cover 14, and the two ends of oscillating deck 79 form two pins, and wherein the first pin 791 is stuck in
In the square groove of storage folder 52b, the second pin 792 is arranged in chute 72c and can slide in chute 72c.Chute 72c has
Along two straight flange 723c of the axially symmetric setting of output shaft 4a and the hypotenuse 724c that is connected with two straight flanges respectively, two hypotenuses
Formation oblique angle, 724c intersection portion, oblique angle portion is relative to two straight flange 723c evaginations and towards motor 2, and the middle part of chute 72c sets
Having two baffle plates 725, baffle plate 725 is roughly parallel to straight flange 723c, and the distance between two baffle plates 725 is substantially equal to the second pin
The diameter of 792, the move in tracks that the second pin 792 can be formed between two baffle plates 725, two other baffle plate 725 He
The corresponding distance between two straight flange 723c is also substantially equal to the diameter of the second pin 792, and the second pin 792 can be at gear
The move in tracks formed between the straight flange 723c that plate 725 is corresponding, chute 72c is divided into first and slides by two baffle plates 725
Groove 701 and the second chute 702.Pivotally connected on slip lid 53b have guide plate 74c, guide plate 74c to be positioned at chute 72c away from tiltedly
The position of limit 724c, guide plate 74c is substantially in Y type, and the single head end of Y type guide plate 74c is towards hypotenuse 724c.Set in chute 72c
Having stop column 75c, stop column 75c to be positioned at the middle part of double end end of Y type guide plate 74c, stop column 75c is fixed on slip lid 53b,
Guide plate 74c can around be perpendicular to chute 72c axis rotate, the double end end of such Y type guide plate 74c can select one with
Stop column 75c conflicts, thus guide plate 74c is stopped post 75c and limits and can only rotate in certain scope, wherein at guide plate
When 74c is maintained at the position contacted with stop column 75c, the distance of the single head end of guide plate 74c to one of them baffle plate is less than the
The diameter of two pins 792, the distance to another baffle plate is less than the diameter of the second pin 792, so can ensure that the second pin
792 can move according to definitive orbit during slip in chute 72c.Magnet or stop it is provided with on stop column 75c
Post inherently magnetic column, and guide plate 74c is made up of permeability magnetic material, the double end end of guide plate 74c whichsoever with stop
Post 75c conflicts and will remain in the position of contact, it is ensured that the second pin 792 can enter predetermined track smoothly.
In such scheme, the action of automatic switchover work 9 moves axially realization, namely by operation slip lid 53b
Operation slip lid 53b the second pin 792 is slided in chute 72c, storage folder 52a move before need connector 51c and
House storehouse 521a separate, and operate connector 51c move also by operation slip lid 53b move axially realization, thus need
To be moved axially by operation slip lid 53b and to make connector 51c and operate slip lid 53b again and moved axially after housing storehouse 521a and separating
Become to automatically switch, move to prevent connector 51c from continuing along with slip lid 53b, can divide with housing storehouse 521a at connector 51c
Make slip lid 53b idle stroke slide after from, i.e. slip lid 53b continues to move axially and connector 51c fixes relative to casing 1, concrete
Implementation has a lot, preferably arranges locking piece of 55a, pushing block 58a between slip lid 53b and pushing block 58a even in present embodiment
Being connected on locking piece of 55a, locking piece of 55a is stuck in the stopper slot 539c being arranged on slip lid 53b, locking piece of 55a and slip lid 53b
Extending axially through flexibly positioned connection, locking piece of 55a can overcome resilient force to move in stopper slot 539c until again
Flexibly positioned, the most just achieve another idle stroke of slip lid 53b.
Conventional screwdriver bit length is about one inch i.e. 2.54 centimetres, and the beeline that connector moves i.e. is released screwdriver bit
Storage folder, the distance of screwdriver bit length that the chances are, and operate slip lid and move 3 cm and operation will not be brought impact, but such as
The long efficiency that will affect operator of distance of fruit movement, especially the operation slip distance of more than 5 centimetres.Present embodiment
Middle storage folder 52a houses the longer screwdriver bit of length or drill bit, such as the screwdriver bit of two inches, so storage folder 52a
Length is longer so that connector 51a needs the distance moved the longest, when connector 51a separates with housing storehouse 521a, and slip lid
53a moves to the rear end of motor 2, and the length that so can make complete machine is the longest, to this end, in slip lid 53a and connection in present embodiment
Arranging stroke amplifying mechanism between part 51a, slip lid 53a linear movement drives stroke amplifying mechanism band follower link 51a motion, from
And the movement travel that the movement travel of connector 51a is more than slip lid 53a, say, that the distance moved by slip lid 53a is less than
The distance that connector 51a moves realizes connector 51a and separates with housing storehouse.
Referring to figs. 1 through shown in Fig. 3, in the embodiment that the present invention provides, stroke amplifying mechanism can also be even
Linkage 200, linkage includes one group of the first half 201, one group of connecting rod being connected with connector 51c pivot and casing 1 pivot
The second half connecting rods 202 that are connected and be pivotally connected to one group of the first half connecting rod and a group the second half respectively between connecting rod at least
One group of connecting rod 203 arranged in a crossed manner.Being provided with the first pin-and-hole 513 on connector 51c, the first bearing pin 514 is through the first half connecting rods
One end of 201 is stuck in the first pin-and-hole 513, the first half matched in clearance between connecting rod 201 and the first bearing pin 514 thus the first half connect
Bar 201 can rotate around the first bearing pin 514.The set-up mode of the second half connecting rods 202 and the first half connecting rods 201 are identical, herein
Repeat no more.Casing 1 includes the upper cover 14 being fixed on motor top, above covers and is provided with the second pin-and-hole 143, and the second bearing pin 144 is worn
The one end crossing the second half connecting rods 202 is stuck in the second pin-and-hole 143, the second half matched in clearance between connecting rod 202 and the second bearing pin 144
Thus the second half connecting rods 202 can rotate around the second bearing pin 144.Often organize connecting rod 203 arranged in a crossed manner and include that at least two is enclosed
The connecting rod 203 arranged around same pivotal axis, often organizes the quantity of half connecting rod in half connecting rod and connects with often organizing in connecting rod 203 arranged in a crossed manner
The quantity of bar is equal, one end of the connecting rod 203 in the connecting rod 203 that one of which is arranged in a crossed manner respectively with the first half connecting rod 201 pivots
Turning and connect, one end of the connecting rod 203 in the connecting rod 203 that another set is arranged in a crossed manner is pivotally connected with the second half connecting rods 202 respectively,
Often organize and be pivotally connected by interlinking lever end respectively between connecting rod 203 arranged in a crossed manner, so can intersect by controlling connecting rod 203
The pivot at place moves axially along output shaft and makes linkage stretch and shrink.Present embodiment is the most often organized half connecting rod and arranges three
Root half connecting rod, same connecting rod 203 arranged in a crossed manner of often organizing arranges three connecting rods, wherein has two connecting rods to be parallel to each other and relatively
Fixing, another root connecting rod is arranged between two connecting rods, and arranging three is the intensity in order to increase linkage so that it is time flexible
It is unlikely to deform.
The concrete structure of aforementioned link mechanism is the preferred embodiment of the present invention, and those skilled in the art can be according to connecting rod
The change that the principle of mechanism is suitable, as the first half connecting rods 201, the second half connecting rods 202 and connecting rod 203 are respectively provided with two and equally may be used
To reach identical effect.Certainly, linkage can also be all made up of connecting rod 203, connecting rod 203 and connector 51c and machine
The connected mode of shell 1 can be to be slidably connected, can by control connecting rod 203 end gather and separation makes linkage stretch
And contraction, it is also possible to move axially along output shaft and make linkage stretch by controlling pivot in the middle part of linkage and shrink.
It addition, connector 51c works head along output shaft 4a axially-movable with push-and-pull, therefore the telescopic direction of linkage should be parallel to defeated
Shaft 4a is axial, say, that it is axial that the plane at linkage place is parallel to output shaft 4a, in order to make linkage and other
Cooperation between element is compacter, and linkage best level is arranged, i.e. the plane at linkage place is perpendicular to vertical side
To, thus the volume that when having enough space linkages to shrink in casing 1, its width increases.
Being provided with pushing block 58a between linkage and slip lid 53a, the end face of pushing block 58a is substantially in N-shaped, and it is along output
Axle 4a axially has certain length, and the inside of pushing block 58a is available for linkage and passes, and the N-shaped two edges of pushing block 58a are formed fixed
Position block 583, so that pushing block 58a can be along in locating piece 583 can be stuck in the first gathering sill 147 of the upper cover 142 of casing 1
First gathering sill 147 moves.There is elongated slot 584 at the N-shaped top of pushing block 58a along output shaft 4a is axially arranged, and elongated slot 584 is positioned at and pushes away
One end of block 58a length direction, the other end of pushing block 582a length direction is provided with projection 585, and projection 585 can be connected to sliding
Lid 53b is so that slip lid 53b drives pushing block 58a to move.The pivotal point in the middle part of two connecting rods 203 in linkage is provided with card
Pin 204, bayonet lock 204 is through elongated slot 584 and can move along elongated slot 584, and the upper end of bayonet lock 204 is provided with locating flange
2041, the diameter of locating flange 2041, more than the width of elongated slot 584, is positioned such that flange 2041 cannot pass through elongated slot 584, from
And bayonet lock 204 can be supported on pushing block 58a, it is arranged between bayonet lock 204 and connecting rod 203, along bayonet lock 204 axial restraint, i.e. connect
Bar 203 axially cannot move along bayonet lock 204, thus is supported on pushing block 58a by linkage by bayonet lock 204, it is ensured that even
Linkage will not deform when flexible.The length of pushing block 58a disclosure satisfy that connection bayonet lock 204 and slip lid 53b, pushing block 58a
Can be joined directly together with slip lid 53b, it is also possible to be indirectly connected to, as long as slip lid 53b can drive the pushing block 58a motion company of drive then
Fitting 51c moves, or be arranged to slip lid 53b can be in the way of being directly connected with bayonet lock 204.Arranging pushing block 58a is only
Slip lid 53b has an idle stroke relative to connector 51c, namely by the bayonet lock 204 elongated slot 584 on pushing block 58a
Motion realizes slip lid 53b motion and connector 53c moves the most therewith, when bayonet lock 204 is connected to the inwall of elongated slot 584, and slip lid
53b can move by band follower link 53c.Acting on of idle stroke will be described in more detail below.
Linkage is preferably provided with 11 groups of 203,11 groups of connecting rods arranged in a crossed manner 203 of connecting rod arranged in a crossed manner and the first half
Connecting rod 201, the second half connecting rods 202 just form when 12 groups of quadric chains, i.e. linkage stretch and form 12 parallel four limits
Shape, moves axially stretching, extension or the contraction realizing linkage by the pivotal axis in the middle part of the connecting rod 203 that operation is arranged in a crossed manner.
The optional connecting rod 203 arranged in a crossed manner with one of which of element (such as pushing block 58a, slip lid 53b etc.) that drivening rod mechanism is flexible
The pivot at middle part is connected, and the stroke of the such connector 53c stroke relative to slip lid 53b can be exaggerated or reduce.This reality
Execute pushing block 58a and the 4th group of connecting rod 203(arranged in a crossed manner in mode to calculate at the second bearing pin 144) middle part pivot bayonet lock
204 are connected, and operation slip lid 53b makes bayonet lock 204 move to the second bearing pin 144, slip lid 53b and the synchronized movement of bayonet lock 204, i.e. block
Pin 204 has moved and has made the distance of four parallelogram compressions, and connector 51c moves along with the first bearing pin 514, the first bearing pin
514 have moved relative to the second bearing pin 144 makes the distance of 12 parallelogrames compressions, such slip lid 53b and connector 51c
Movement travel be not counted in the idle stroke of slip lid than for 1:3().The most visible, by operating different connecting rods arranged in a crossed manner
Pivot pin axially-movable in the middle part of in the of 203, can realize movement travel ratios different from connector 51c for slip lid 53b, present embodiment
The movement travel ratio of middle slip lid 53b and connector 51c between 1:12 to 1:1, so can ensure that each element connects compact,
Reliably, linkage will not interfere with housing storehouse 521a simultaneously.Certainly those skilled in the art are readily able to according to upper
State principle and other movement travel ratio is set, such as the quantity by increasing connecting rod 203 arranged in a crossed manner.
Electric drill needs axially to be pressed on screw or workpiece work 9 operating when, so work 9
Can be by a reverse responsive to axial force, axial force 9 is passed to connector 51, after producing connector 51 by working
Moving, in order to avoid this problem, arrange lock dog 57 between slip lid 53b and linkage, the upper cover 14 of casing 1 is provided with and first
The second gathering sill 128 that gathering sill 147 is parallel, lock dog 57 is provided with extension 571, extension 571 towards the one side of output shaft 4a
In being stuck in the second gathering sill 128 and can slide along the second gathering sill 128.Stopper slot 572, stopper slot it is provided with on lock dog 57
The width when width of 572 and linkage are in extended configuration is roughly equal, and the length of stopper slot 572 need to ensure can be complete
House the second half connecting rods 202 when being in extended configuration, so when work 9 is pressed on workpiece, linkage stress meeting
Producing the tendency shunk, linkage needs to expand at its width, and stopper slot 572 limits the second half connecting rods 202 towards even
The width motion of linkage, therefore work 9 cannot produce and move axially.Because what stopper slot 572 was subject to is along connecting rod machine
The expansionary force of the width of structure, therefore lock dog 57 will not produce axial displacement, thus because work 9 axially compresses workpiece
Electric drill works when, work 9 can be carried out axial limiting.
Electric drill is in running order when, pushing block 58a axially abuts with lock dog 57, when needing more to change jobs, sliding
Lid 53b first moves a segment distance S, and pushing block 58a drives lock dog 57 also to move distance S simultaneously, and bayonet lock 204 is in elongated slot 584
Mobile making pushing block 58a in this segment distance that bayonet lock 204 can not be driven to move, the second half connecting rods 202 are along with the shifting of lock dog 57
Dynamic gradually with stopper slot 572 away from until the pivotal connection of the second half connecting rods 202 and connecting rod 203 separates with stopper slot 572, as
This just relieve stopper slot 572 linkage shrink restriction, thus connector 51c can along with the contraction of linkage to
Move in direction away from output shaft 4a.From the above, it is seen that the idle stroke of slip lid 53b is to release the axial of work 9
Spacing, thus the head that more changes jobs can be realized.It addition, be fixedly installed lock pin 532 on slip lid 53b, lock dog 57 is axial with lock pin 532
Abutting, after changing good berth head, slip lid 53b can drive lock dog 57 to move to the direction of output shaft 4a by lock pin 532, lock dog
57 just can return back to the position that stopper slot 572 abuts with linkage.
In above-mentioned preferred linkage, the quantity of connecting rod 203 arranged in a crossed manner is more, in order to prevent linkage from stretching
There is the swing along its width during contracting, the motion of the pivot pin in the middle part of connection rod set can be positioned,
Wherein can carry out spacing respectively at the two ends of linkage.One end of connector 53c is connected, on connector 53c at linkage
In the middle part of axially arranged first slit 515 of output shaft 4a, the width of the first slit 515 and connection rod set, the diameter of pivot pin is substantially
Equal, the length of the first slit 515 need to ensure no matter linkage is in stretching, extension or contraction state, at least one connection rod set
The pivot pin in portion is stuck in the first slit 515.Connect one end of casing 1 at linkage, the upper cover 14 of casing 1 is provided with and the
One slit 515 the second slit 146 on the same line, same, pivotal pin in the middle part of the width of the second slit 146 and connection rod set
The diameter of axle is roughly equal, and the length of the second slit 146 need to ensure no matter linkage is in stretching, extension or contraction state, at least
Pivot pin in the middle part of one connection rod set is stuck in the second slit 146.So, no matter linkage stretches or shrinks, at least
Pivot pin in the middle part of two connection rod set is along the first slit 515 and linear motion at the second slit 146 place, and 2 determine one
Line, linkage is axially extending only along output shaft 4a or shrinks, thus ensure that the reliability of connecting rod mechanism movement.
When linkage stretches or shrinks, band follower link 51c moves in housing storehouse 521a, and connector 51c and collecting
The inwall of storehouse 521a certainly will have friction, so will be relatively elaborate by slip lid 53b operator link mechanism kinematic, to this end, this
Arranging directive wheel 516 in embodiment on connector 51c, directive wheel 516 can guide with the contact internal walls of collecting storehouse 521a
Wheel 516 can be in the first slit 515 and non-interference with the pivot pin in the middle part of connection rod set with rolling support so that connector
The structure of 51c simplifies.Directive wheel 16 is preferably provided two, is vertically symmetricly set on connector 51c so that connector
Balance is compared in the support of 51c.Being preferably provided with 4 directive wheels 516 in present embodiment, vertically symmetry respectively arranges two,
Thus motion that connector 51c is vertically is more steady.
Coordinate with reference to shown in Figure 23, connector 51c is provided with support means with work 9 one end contacted, supports dress
Put and can abut with work head or separate, and when the head that works is against on workpiece rotation, can be by work by support means
The sliding friction made between head and connector 51c becomes rolling friction.Concrete, support means includes support member 518 and rolls
Part 519, support member 518 is rotatably supported on connector 51c around the axis of output shaft 4a, and support member 518 is relative to even
Fitting 51c axial restraint is arranged, and Magnet 511 can be arranged on support member 518, does not so interfere with connector 51c band and starts building
Work 9 returns to house storehouse 521a, and rolling member 519 is arranged between support member 518 and connector 51c, is used for carrying electric drill work
Time the work 9 axial force when rotating, frictional force effect when support member 518 is rotated by work 9 is it is thus possible to along with work
Make 9 rotation, be Structure deformation between support member 518 and connector 51c, reduce between support member 518 and connector 51c
Rub, and work 9 is separated by support member 518 with connector 51c, prevents work 9 or connector 51c from damaging because of friction
Bad, thus increase electric drill and the service life of work 9.Here rolling member 519 refers to the rolling elements such as roller, ball, needle roller,
Additionally between rolling member 519 and support member 518 and/or between rolling member 519 and connector 51c, wear-resistant gasket can be set
5191, both prevented the abrasion of support member and connector, and can change in time depending on the degree of wear of wear-resistant gasket 5191 simultaneously, subtract
Little use cost.It addition, support means can also include that end face bearing (also referred to as plane bearing), work head support with end face bearing
Connecing, or rolling member 519 is rotatably mounted on connector, work head abuts with rolling member 519, so can realize rolling
Dynamic support.
With reference to Figure 24 to Figure 31, in second embodiment that the present invention provides, stroke amplifying mechanism is preferably dynamic sliding
Wheel mechanism, is i.e. the principle of resistance arm twice according to movable pulley mechanism medium power arm, makes the stroke of connector be exaggerated.Specifically
, movable pulley 210 is set between slip lid 53b and connector 51d, movable pulley 210 can be as slip lid 53b band follower link
The actuator of 51d motion, movable pulley 210 is arranged on pushing block 58b, can arrange idle stroke between pushing block 58b and slip lid 53b,
Certainly, if unblock connector 51d is moved through other modes and realizes, as button unlocks, then can be at pushing block 58b and slip lid
Idle stroke is set between 53b, can directly be driven by slip lid movable pulley 210 to move linearly in other words.Two are walked around on movable pulley 210
Section flexible cable, flexible cable here is rope, the general name of band, cable wire, line, tinsel etc., and wherein one end of first paragraph flexible cable 211 is fixed on
In casing 1, the other end is fixed on the connector 51d rear portion away from output shaft 4a, preferably end, can realize connector 51d
Short setting, thus instrument entirety is compacter.Fixed form can be screw in compression, through in casing 1 or connector 51d
Hole knotting etc., first paragraph flexible cable 211 self-retaining one end on connector 51d is wound on movable pulley 210 in a counterclockwise direction, this
In contact less than 360 degree around refer to flexible cable and movable pulley 210, when slip lid 53b drive movable pulley 210 is towards output shaft 4a
Direction motion time, movable pulley 210 is moved to the direction of output shaft 4a by first paragraph flexible cable 211 band follower link 51d, connects
The distance of part 51d linear motion is the twice of the distance of movable pulley 210 linear motion.One end of second segment flexible cable 212 is fixed on
In casing, the other end is fixed on connector 51d and closes on the front portion of output shaft 4a, and best second segment flexible cable 212 is fixed on connector
One end on 51d is positioned between 1st/1 to two/4ths of connector 51d length, because being in work at multifunction drill
When making position, movable pulley 210 is positioned at connector 51d one end away from output shaft 4a, and movable pulley 210 only needs mobile link part 51d
The distance of length half, connector 51d just can move the distance of its whole length, therefore second segment flexible cable 212 is without being fixed on
Connector 51d closes on the end of output shaft 4a, the most just can save the length of flexible cable, thus reduce cost.Second segment flexible cable
Self-retaining one end on connector 51d walks around movable pulley 210 in a clockwise direction, when slip lid 53b drives movable pulley 210 to far
When moving from the direction of output shaft 4a, movable pulley 210 is by second segment flexible cable 212 band follower link 51d output shaft 4a's dorsad
Moving in direction, the distance of connector 51d linear motion is the twice of the distance of movable pulley 210 linear motion.
Concrete when operation, pull back slip lid slip lid 53b, slip lid 53b is driven after idle stroke by locking piece of 55a
Pushing block 58b rearward movement, pushing block 58b drives movable pulley 210 also rearward movement, because of second segment flexible cable 212 on movable pulley 210 around
, therefore second segment flexible cable 212 is moved rearwards by along with the mobile band follower link 51d of movable pulley 210, until connector 51d drives
Work head 9b returns to house storehouse 521a and exit collecting storehouse 521a, and such as the position of Figure 26, now connector 51d is restricted from
Continue to retreat, continue operation slip lid 53b and be moved rearwards by, by second idle stroke between slip lid 53b and locking piece of 55a, deposit
Storage folder 52a moves to another under the effect of automatic switching control equipment and houses the storehouse 521a position corresponding with output shaft 4a, such as figure
Position shown in 27, moves forward slip lid 53b, slip lid 53b and drives pushing block 58b forward by locking piece of 55a after idle stroke
Motion, pushing block 58b drives movable pulley 210 also to travel forward, because of first paragraph flexible cable 211 on movable pulley 210 around, therefore first paragraph
Flexible cable 211 moves forward along with the mobile band follower link 51d of movable pulley 210, until connector 51d will house in the 521a of storehouse
Work head 9a advances output shaft 4a the front end from output shaft 4a to expose, such as the position of Figure 24.The structure of automatic switching control equipment is former
Manage identical with the first embodiment, be not detailed herein.
Another preferred implementation of movable pulley mechanism it is shown, in order to make the assembling letter of flexible cable with reference to Figure 28 to Figure 31
Single, two sections of flexible cables can be formed without the flexible cable disconnected by one, and flexible cable is divided into the according to different from the position that connector 51d connects
One section of flexible cable 211a and second segment flexible cable 212a, the two ends of flexible cable connect the end of connector 51d be installed with die casting head 215a,
215b, i.e. by the way of die casting, end with flexible cable is relatively fixed, and flexible cable is provided with one end of die casting head 215b and is connected to connect
Movable pulley 210 is also walked around in the counterclockwise direction in the rear portion of part 51d, and flexible cable is provided with one end of die casting head 215a and is connected to connect
Part anterior also walks around movable pulley 210 along clockwise direction, and the middle part of flexible cable is walked around in the counterclockwise direction and is arranged in casing 1
Fixture 2101 and being wrapped on the steady pin 2102 being arranged in casing 1, winding here refers to flexible cable and steady pin
The contact of 2102 is more than 360 degree, preferably 720 degree, is i.e. wound around two circles, the most both can realize the self-locking of flexible cable, Er Qieneng
The length of enough flexible cables adjusting movable pulley 210 both sides easily.Steady pin 2102 and die casting head 215b are relative to vertical direction position
In the side of movable pulley 210, fixture 2101 and die casting head 215a are positioned at the opposite side of movable pulley 210 relative to vertical direction.
Here fixture 2101 and steady pin 2102 are equivalent to fixed pulley, it is achieved fixing in the middle part of flexible cable, say, that flexible cable is provided with
The two ends of die casting head 215a, 215b all have corresponding canned paragraph, such that it is able to the stroke realized in both direction amplifies.
It is the folding of flexible cable that the stroke that movable pulley mechanism realizes amplifies utilize, say, that no matter whether movable pulley 210
Can rotate and can realize stroke amplification, of course for the friction reduced between flexible cable and movable pulley 210, movable pulley 210 can
Rotate is arranged on pushing block 58b, and the friction between flexible cable and movable pulley 210 is rolling friction, so can increase flexible cable
Service life.In order to prevent flexible cable follow-up pulley 210 from departing from, can arrange raceway on movable pulley 210, raceway can arrange two
Individual, the interval, direction along the rotation axis of movable pulley 210 is arranged, and two raceways can accommodate first paragraph flexible cable 211,211a respectively
With second segment flexible cable 212,212a.
Because of the existence of the factor such as assembly precision, foozle, flexible cable there may be loosening phenomenon relative to movable pulley 210,
In order to make flexible cable be in tensioning state all the time relative to movable pulley 210, tensioning device can be set between flexible cable and connector 51d
Structure, strainer is used for flexible cable relative to movable pulley 210 tensioning, concrete, can be between connector 51d and the end of flexible cable
Arranging flexible member 214, flexible member 214 to die casting head 215a, 215b and connector 51d to apply to make flexible cable relative to movable pulley
The power of 210 tensionings, such flexible cable just can be constantly in tensioning state.Can certainly be at flexible cable connection fixture 2101 or solid
One end of rationed marketing 2102 arranges flexible member, makes fixing end relative to movable pulley 210 tensioning.Present embodiment elastic element
214 are preferably stage clip, and stage clip is arranged between connector 51d and die casting 215.Certainly, flexible member 214 can also be other
Mode, such as torsion spring, shell fragment etc..
It addition, for the impact eliminating assembly precision, foozle further, flexible cable can be arranged on connector 51d
The regulation screw 213 that can pass, regulation screw 213 can move to regulate the die casting of flexible cable end relative to connector 51d
Head 215a, 215b position relative to connector 51d, adjusts the use length of flexible cable then.In order to save space, die casting head
215a can be stuck in an adjustment block 216, and regulation screw 218 is connected with adjustment block 216, and one is fixed on connector 51d
Screw 217 limits adjustment block 216 to be merely able to move within the specific limits, and regulation screw 218 is by the way of screwing in various degree
Regulate the adjustment block 216 position on connector 51d, thus regulate the die casting head 215a position relative to connector of flexible cable
Put, can realize adjusting the use length of flexible cable too.
In order to the structure making multifunction drill is compacter, rotation axis and the output shaft 4a axle of movable pulley 210 can be made
Line is vertical, and it is also possible that operation slip lid 51b is more laborsaving.Movable pulley 210 can also be non-rotating relative to slip lid 53b
Setting, as being fixed on slip lid 53b pin, the rope that can be walked around by flexible cable etc..According to above-mentioned principle, those skilled in the art can
By by realizing the movement travel that the movement travel of connector 51d is movable pulley 210 in the way of setting up movable pulley or fixed pulley
The natural several times more than or equal to 2 times.
Below by as a example by the first embodiment by fast to the middle work head of currently preferred direct current multifunction drill
The process that speed is changed elaborates.
Direct current multifunction drill shown in Fig. 1 and Fig. 3, Fig. 4 is in running order, with reference to shown in Fig. 5 to Fig. 7, works as needs
When changing a further type of work head 9b, slip lid 53b is along shown by arrow M direction displacement S in operation, and slip lid 53a passes through
Locking piece of 55a drives pushing block 58a to move, and bayonet lock 204 abuts with the front side of elongated slot 584 along with the movement of pushing block 58a, pushing block 58a
Lock dog 57 is driven also to move distance S, the pivot section of the second half connecting rods 202 and connecting rod 203 arranged in a crossed manner and lock dog 57
On stopper slot 572 separate, thus relieve linkage shrink restriction, the second pin 792 of oscillating deck 79 is along with cunning
The slip of lid 53b moves to the position shown in Fig. 8 in chute 53c.
With reference to shown in Fig. 8 to Figure 10, continuing the direction operation slip lid 53b along shown by arrow M and move, slip lid 53b continues logical
Crossing locking piece of 55a drives pushing block 58a to move, and pushing block 58a is shunk until linkage is complete by bayonet lock 204 drivening rod mechanism
Being contracted in together, connector 51c drives the work head 9a being positioned at output shaft 4a to move to house along with shrinking of linkage
In the 521a of storehouse, connector 51c separates with housing storehouse 521a, and the second pin 792 of oscillating deck 79 is being slided along with the slip of slip lid 53b
The position that the single head end with guide plate 74c closes on, position as shown in figure 11 is moved in groove 72c.
With reference to shown in Figure 11 to Figure 13, continuing the direction operation slip lid 53b along shown by arrow M and move, locking piece of 55a overcomes
Resilient force moves in stopper slot 539c until the front side of locking piece of 55a and stopper slot 539c abuts and is determined by hypoelasticity again
Position, the second pin 792 of oscillating deck 79 and the single head end in contact of guide plate 74c, the second pin 792 active force is in guide plate 74c
The magnetive attraction being allowed to overcome stop column 75c attracts and produces and rotate until the another side of double end end is stopped post 75c magnetic, and second
Pin 792 is along with the border movement along guide plate 74c that rotates of guide plate 74c, and the second pin 792 produces and is perpendicular to slip lid
The motion of 53b moving direction so that oscillating deck 79 pivots around it, the first pin 791 drives storage folder 52a to move to separately
One houses the position that storehouse 521a is corresponding with the accepting hole 41a of output shaft 4a, position as shown in Figure 14 and Figure 15.
With reference to shown in Figure 14 to Figure 16, the direction operation slip lid 53b along shown by arrow N resets, and slip lid 53b passes through locking piece
55a drive pushing block 58a move, bayonet lock 204 abuts with the rear side of elongated slot 584 along with the movement of pushing block 58a, the second pin 792 with
Slip lid 53b to be moved along the straight flange 723c of chute 72c and move to the position shown in Figure 17.
With reference to shown in Figure 17 to Figure 19, continuing the direction operation slip lid 53b along shown by arrow N and reset, slip lid 53b is by card
Determining block 55a drives pushing block 58a to move, and pushing block 58a drives bayonet lock 204 to make linkage stretch, and connector 51c enters another and receives
Holding storehouse 521a drives its interior work head 9b to enter output shaft 4a, and the second pin 792 is moved along chute 72c along with slip lid 53b
Straight flange 723c move to the position shown in Figure 20.
With reference to shown in Figure 20 to Figure 22, continuing the direction operation slip lid 53b along shown by arrow N and move, locking piece of 55a overcomes
Resilient force moves in stopper slot 539c until the rear side of locking piece of 55a and stopper slot 539c abuts and is determined by Rear resilient
Position, the lock pin 532 on slip lid 53b axially abuts with lock dog 57, and slip lid 53b drives lock dog 57 to output by lock pin 532
The direction of axle 4a is moved, and lock dog 57 just can return back to the position that stopper slot 572 partially overlaps with linkage 200.Oscillating deck 79
The second pin 792 along chute 72c hypotenuse 724c slide, second pin 792 produce be perpendicular to slip lid 53 moving direction
Motion so that oscillating deck pivots around it, and now store double-layered quilt connector and linkage is spacing cannot move, first
Pin 791 slides into opposite side in the square groove on storage folder, position as shown in figure 22.
Repeat the above steps, just can be replaced with another work head 9a.Second pin movement locus in chute 72b
Moving in circles, the move in tracks that the second pin can be formed from two baffle plates is to the first chute 701, then from two baffle plates
The move in tracks formed to the second chute 702 thus formed to circulate and realize the automatic switchover of work head.
The above-mentioned definition to each element is not limited in various concrete structures or shape, this area mentioned in embodiment
Those of ordinary skill can to its carry out simply know replace.As motor can substitute electricity with gasoline engine or diesel engine etc.
Machine；Slip lid is for band follower link or drives storage folder, and its version can have multiple such as pull bar, end cap etc.；Additionally,
In above-mentioned embodiment, moving to axial between connector and storage folder can also be that connector is fixed, and the head that works is deposited
Storage folder can either can also move radially in axially-movable, and connector can also be to be coaxially disposed etc. with motor shaft.It addition, it is right
Its structure also has no special requirements, and the most different interiors changes configuration accordingly, can increase new element, it is also possible to subtract
Few unnecessary element.
Claims (9)
1. a hand-held tool, including:
Casing；
Output shaft, is supported in casing, has the axially arranged accepting hole accommodating work head；
Work head support mechanism, is at least partially arranged in casing, and described work head support mechanism has for support works head
Several receiving spaces being set up in parallel, described work head support mechanism can be adjusted at least one receiving space and institute
State the position that accepting hole is axially corresponding；
Connector, is arranged in casing, described connector can drive work head be in be positioned at accepting hole operating position or
It is positioned at the collecting position of work head support mechanism；
It is characterized in that: described connector closes on one end of output shaft and is provided with support means, and described support means can be with work
Head abuts or separates, and described support means includes that multiple rolling member, described support means abut and by work head with work head
When compressing, described rolling member can rotate relative to connector under the effect that work head rotates, and described connector is provided with leads
To wheel, described directive wheel radially can contact with work head support mechanism along output shaft and the rotation axis of described directive wheel hangs down
Straight axial in output shaft.
2. hand-held tool as claimed in claim 1, it is characterised in that: described support means includes being rotatably provided in connector
On support member, described support member can with work head abut or separate, the plurality of rolling member be arranged on connector and
Between support member.
3. hand-held tool as claimed in claim 2, it is characterised in that: described support means includes being arranged on connector and propping up
End face bearing between support member.
4. hand-held tool as claimed in claim 2, it is characterised in that: the end face of described connector relative support and support
Both end faces of part opposite joints at least one be provided with around output shaft axis arrange annular groove, described rolling member part receive
Hold in described annular groove.
5. hand-held tool as claimed in claim 4, it is characterised in that: between described rolling member and connector and/or roll
Wear-resistant gasket it is provided with between part and support member.
6. hand-held tool as claimed in claim 2, it is characterised in that: one end that described support member can abut with work head
Magnet is installed.
7. hand-held tool as claimed in claim 1, it is characterised in that: it is axially arranged with spacing on described connector along output shaft
Groove, described directive wheel is at least partly housed in stopper slot.
8. hand-held tool as claimed in claim 1, it is characterised in that: described directive wheel is at least provided with a pair, along level side
To being symmetrical arranged.
9. hand-held tool as claimed in claim 1, it is characterised in that: described hand-held tool also includes: motor, is arranged on
In casing, and outputting rotary power；Drive mechanism, the rotary power being arranged between motor and output shaft and motor can being exported
Pass to output shaft.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210486677.1A CN103831795B (en) | 2012-11-26 | 2012-11-26 | Hand-held tool |
| KR1020147022331A KR20140123064A (en) | 2012-01-13 | 2013-01-14 | Power tool and operating method for use on the power tool |
| EP13736370.1A EP2803451B1 (en) | 2012-01-13 | 2013-01-14 | Power tool and operating method for use on the power tool |
| PCT/CN2013/000025 WO2013104267A1 (en) | 2012-01-13 | 2013-01-14 | Power tool and operating method for use on the power tool |
| EP16194524.1A EP3141351B1 (en) | 2012-01-13 | 2013-01-14 | Power tool |
| US14/330,368 US9833884B2 (en) | 2012-01-13 | 2014-07-14 | Power tool and operating method for use on the power tool |
| US15/801,848 US10093004B2 (en) | 2012-01-13 | 2017-11-02 | Power tool and operating method for use on the power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210486677.1A CN103831795B (en) | 2012-11-26 | 2012-11-26 | Hand-held tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103831795A CN103831795A (en) | 2014-06-04 |
| CN103831795B true CN103831795B (en) | 2016-09-14 |
Family
ID=50795854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210486677.1A Active CN103831795B (en) | 2012-01-13 | 2012-11-26 | Hand-held tool |
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| Country | Link |
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| CN (1) | CN103831795B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108242A (en) * | 1984-11-16 | 1986-06-10 | 松下电器产业株式会社 | Electric screwdriver |
| US6138537A (en) * | 1999-06-04 | 2000-10-31 | Cole; Teresa M. | Multi-tip tool |
| CA2243055C (en) * | 1997-07-14 | 2005-01-04 | Maxtech Manufacturing Inc. | Hand tool with reversible shaft |
| CN101031393A (en) * | 2004-09-30 | 2007-09-05 | 罗伯特·博世有限公司 | Handheld machine tool, especially a drill hammer and/or a percussive drill |
| CN101563192A (en) * | 2006-12-18 | 2009-10-21 | 罗伯特·博世有限公司 | Motor-driven machine tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001264199A (en) * | 2000-03-21 | 2001-09-26 | Katsuyuki Totsu | Bit adapter for torque detector |
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2012
- 2012-11-26 CN CN201210486677.1A patent/CN103831795B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108242A (en) * | 1984-11-16 | 1986-06-10 | 松下电器产业株式会社 | Electric screwdriver |
| CA2243055C (en) * | 1997-07-14 | 2005-01-04 | Maxtech Manufacturing Inc. | Hand tool with reversible shaft |
| US6138537A (en) * | 1999-06-04 | 2000-10-31 | Cole; Teresa M. | Multi-tip tool |
| CN101031393A (en) * | 2004-09-30 | 2007-09-05 | 罗伯特·博世有限公司 | Handheld machine tool, especially a drill hammer and/or a percussive drill |
| CN101563192A (en) * | 2006-12-18 | 2009-10-21 | 罗伯特·博世有限公司 | Motor-driven machine tool |
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| CN103831795A (en) | 2014-06-04 |
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