CN103831796B - Hand-held tool - Google Patents

Abstract

The present invention relates to a kind of hand-held tool, comprising: casing; Output shaft, has the accepting hole that holds working head of axial setting; Working head supporting mechanism, be arranged at least partly in casing, described working head supporting mechanism has several receiving spaces that are set up in parallel for support works head, and described working head supporting mechanism can be adjusted at least one receiving space and the axial corresponding position of described accepting hole; Connector, is arranged in casing, and described connector can drive working head in being positioned at the operating position of accepting hole or being positioned at the collecting position of working head supporting mechanism; Described casing is provided with the operating parts of controlling described connector motion, between described operating parts and connector, be connected with actuator, described operating parts can be controlled actuator along output shaft axial linear movement, the rectilinear motion of described actuator is converted into connector along the axial rectilinear motion of output shaft, and the movement travel of described connector is greater than the movement travel of described actuator.

Description

Hand-held tool

Technical field

The present invention relates to a kind of hand-held tool, relate in particular to a kind of storage and quick-replaceable rifle of realizing working headBore class hand-held tool.

Background technology

In existing drill gun class hand-held tool, generally include electric drill, screwdriver, percussion drill etc.

Screwdriver be for by screw-driving to a kind of conventional electric tool on workpiece. When needing to twist in use procedureWhen the screw of tight different size, change different screwdriver bits according to the difference of screw specification, will be original installationScrewdriver 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 clamps drill bit and rotates constantly.

Conventionally, user need to carry out dissimilar operation in the time carrying out operation, as the turn of the screw, boring etc. So, needWant user to prepare the electric tool of number of different types or the working head of number of different types, also to constantly more bring intoLine operate, especially twists under the operating mode of screw need to first beat pre-hole again, need to be between drill bit and screwdriver bit constantly moreChange, will bring great inconvenience to operator like this, caused replacing working head loaded down with trivial details on the one hand, take off on the other handWorking head is placed easy loss everywhere. Although, in some hand-operated tools, have some can realize the storage of working head and fast moreChange, still, due to the inherent defect of hand-operated tools, moment of torsion is little, and operation is hard, makes operator be easy to fatigue, causes efficiencyLowly, be not suitable for using as professional instrument in industry.

Chinese invention patent CN101563192B has disclosed a kind of toolroom machine of the cutter for rotatable driving, this instrumentFacility have motor and transmission device, and transmission device is provided with cutter changing storehouse. On cutter changing storehouse, be provided with for holding screwdriver bitCutter chamber. One operation saddle can axially travel forward with through one of them cutter chamber and drive and be arranged in this cutter chamberScrewdriver bit enters cutter dop, or the screwdriver bit axially moving through backward in the magnet band cutter dop that is arranged on its front end returnsTo cutter chamber. One executing agency is for operation saddle is carried out to axial limiting, and executing agency comprises that axially props up an operation cunningThe support lever of part, in the time that needs are changed screwdriver bit, depresses button and just can remove the axial limiting of support lever to operation saddle,So just can make it to exit cutter dop with screwdriver bit by move operation saddle, and drive screwdriver bit to get back to cutter chamber, operation is slidingPart exits cutter chamber, and rotary cutter is changed storehouse just can select another screwdriver bit. Like this operation screwdriver bit enter cutter dop orGetting back to cutter chamber needs direct push-and-pull operation saddle, thereby toolroom machine is with regard to corresponding arrange longer, has increased the body of toolroom machineLong-pending, if the small and exquisite gripping of retaining tool is convenient, will certainly make the complex structure of instrument, and operate and also can waste time and energy.

Summary of the invention

For the deficiencies in the prior art, the object of the present invention is to provide a kind of hand-held tool of compact conformation.

The technical solution adopted for the present invention to solve the technical problems is: a kind of hand-held tool, comprising: casing; OutputAxle, has the accepting hole that holds working head of axial setting; Working head supporting mechanism, is arranged in casing at least partly, described inWorking head supporting mechanism has several receiving spaces that are set up in parallel for support works head, described working head supporting mechanismCan be adjusted at least one receiving space and the axial corresponding position of described accepting hole; Connector, is arranged in casing, instituteStating connector can drive working head in being positioned at the operating position of accepting hole or being positioned at the position of accommodating of working head supporting mechanismPut; Described casing is provided with the operating parts of controlling described connector motion, between described operating parts and connector, is connected with drivingPart, described operating parts can be controlled actuator along output shaft axial linear movement, and the rectilinear motion of described actuator is converted into and connectsFitting is along the axial rectilinear motion of output shaft, and the movement travel of described connector is greater than the movement travel of described actuator.

Preferably, be also connected with flexible piece between described casing and connector, described actuator makes by described flexible pieceConnector rectilinear motion.

Preferably, described connector has and closes on the anterior of output shaft and the rear portion away from output shaft, described flexible pieceOne end is connected to the rear portion of connector and can drives connector to move towards output shaft; The other end of described flexible piece is connected toThe front portion of connector also can drive connector output shaft motion dorsad.

Preferably, described flexible piece at least comprises two sections of flexible cables, and wherein one end of first paragraph flexible cable is connected to connectorDescribed actuator is also walked around along first direction in rear portion, and the other end of described first paragraph flexible cable is fixed on casing, wherein second segmentOne end of flexible cable is connected to the anterior and edge of connector and walks around in the opposite direction described actuator with first party, described second segmentThe other end of flexible cable is fixed on casing.

Preferably, described flexible piece at least comprises one section of flexible cable, and the rear portion that one end of described flexible cable is connected to connector alsoWalk around described actuator along first direction, the described other end be connected to the anterior of connector and along with first party in the opposite directionWalk around described actuator, the middle part of described flexible cable is walked around on the fixture being arranged on casing and is wrapped in and establishes along first directionBe placed on the steady pin on casing, one end of described steady pin and described flexible cable is positioned at described actuator with respect to vertical directionOne side, the other end of described fixture and described flexible cable is positioned at the opposite side of described actuator with respect to vertical direction.

Preferably, one end that described flexible piece is connected to connector front portion is positioned at 1/4th to two points of connector lengthOne of between.

Preferably, described actuator is provided with at least one raceway, and the position of described raceway is corresponding with described flexible piece.

Preferably, described raceway is provided with two, along arranging perpendicular to interval in the axial direction of output shaft.

Preferably, between described flexible piece and connector, be provided with strainer, described strainer is used for described flexibilityPart is with respect to actuator tensioning.

Preferably, described strainer comprises flexible member, one end that described flexible member is arranged on flexible piece be connectedBetween part and/or between the other end and connector of flexible piece.

Preferably, between described flexible piece and connector, be provided with regulating part, described regulating part can move with respect to connectorMoving to regulate the position of described flexible piece with respect to connector.

Preferably, the front portion of described connector is provided with adjustment block, and described adjustment block can move with respect to connector, described inThe other end of flexible piece is stuck in described adjustment block, and described regulating part is arranged between adjustment block and connector, described regulating partBy regulating described adjustment block then to regulate the position of described flexible piece with respect to connector with respect to the position of connector.

Preferably, described actuator has the rotation axial perpendicular to output shaft, and described actuator can be around itRotation rotates with respect to described operating parts.

Preferably, the movement travel of stating connector is greater than 5 centimetres.

Preferably, described hand-held tool also comprises: motor, be arranged in casing, and outputting rotary power; DriverStructure, is arranged between motor and output shaft and the rotary power of motor output can be passed to output shaft.

Compared with prior art, the invention has the beneficial effects as follows: hand-held tool of the present invention passes through in operating parts and companyStroke amplifying mechanism is set between fitting, can reduces the movement travel of operating parts, reduce hand-held tool width simultaneouslyOn size, thereby make small and exquisite being easy to carry of tool interior compact conformation entirety.

Brief description of the drawings

Fig. 1 is that the direct current multifunction drill in preferred the first embodiment of hand-held tool of the present invention is in running orderTime cutaway view.

Fig. 2 is the part three-dimensional exploded view of the direct current multifunction drill in Fig. 1.

Fig. 3 is direct current multifunction drill in Fig. 1 cross-sectional schematic along G-G line.

Fig. 4 is direct current multifunction drill in Fig. 1 cross-sectional schematic along H-H line.

Fig. 5 is that the connector of the direct current multifunction drill in Fig. 1 is disengaged the cutaway view while locking.

Fig. 6 is direct current multifunction drill in Fig. 5 cross-sectional schematic along I-I line.

Fig. 7 is direct current multifunction drill in Fig. 5 cross-sectional schematic along J-J line.

Fig. 8 is the cutaway view of the direct current multifunction drill in Fig. 1, and now working head is got back to and accommodated storehouse, connector with accommodateStorehouse separates.

Fig. 9 is direct current multifunction drill in Fig. 8 cross-sectional schematic along O-O line.

Figure 10 is direct current multifunction drill in Fig. 8 cross-sectional schematic along P-P line.

Figure 11 is the cutaway view of the direct current multifunction drill in Fig. 1, and now working head is got back to and accommodated storehouse, connector with accommodateStorehouse separates.

Figure 12 is direct current multifunction drill in Figure 11 cross-sectional schematic along Q-Q line.

Figure 13 is direct current multifunction drill in Figure 11 cross-sectional schematic along R-R line.

Figure 14 is the cutaway view of the direct current multifunction drill in Fig. 1, and now storage folder moves to another and accommodates in storehouseThe position that working head is corresponding with output shaft.

Figure 15 is direct current multifunction drill in Figure 14 cross-sectional schematic along T-T line.

Figure 16 is direct current multifunction drill in Figure 14 cross-sectional schematic along U-U line.

Figure 17 is the cutaway view of the direct current multifunction drill in Fig. 1, and now another working head of accommodating in storehouse is pushed intoIn output shaft.

Figure 18 is direct current multifunction drill in Figure 17 cross-sectional schematic along V-V line.

Figure 19 is direct current multifunction drill in Figure 17 cross-sectional schematic along W-W line.

Figure 20 is the cutaway view of the direct current multifunction drill in Fig. 1, and now automatic switching control equipment resets, and connector is by axialLocking.

Figure 21 is direct current multifunction drill in Figure 20 cross-sectional schematic along Y-Y line.

Figure 22 is direct current multifunction drill in Figure 20 cross-sectional schematic along Z-Z line.

Figure 23 is the enlarged drawing of the direct current multifunction drill a part in Figure 21.

Figure 24 is that direct current multifunction drill in preferred second embodiment of hand-held tool of the present invention is in workCutaway view when state.

Figure 25 is the part three-dimensional exploded view of the direct current multifunction drill in Figure 24.

Figure 26 is the cutaway view of the direct current multifunction drill in Figure 24, and now working head is got back to and accommodated storehouse, connector and receiptsHolding storehouse separates.

Figure 27 is the cutaway view of the direct current multifunction drill in Figure 24, and now storage folder moves to another and accommodates in storehouseThe position that working head is corresponding with output shaft.

The stereo decomposing of the another kind of embodiment of the movable pulley mechanism in the preferred direct current multifunction drill of Figure 28 the present inventionSchematic diagram.

Figure 29 is the schematic top plan view of movable pulley mechanism in Figure 28.

Figure 30 is the cutaway view along A1-A1 line of the movable pulley mechanism in Figure 29.

Figure 31 is movable pulley mechanism in Figure 29 cutaway view along A2-A2 line.

Wherein:

1. casing 11. handle 13a. fore shells

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 rods 202., the second half connecting rods

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. adjustment screw 214. flexible member 215a, 215b. die casting head

216. adjustment block 217. screw 218. adjustment screw

22. gear-box 221. dividing plate 223. toothed wheel box cover plates

3a. transmission 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 tooths

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. accommodate storehouse

53b. slip lid 531. guide rail 532. lock pins

539c. stopper slot 55a. engaging piece 57. lock dogs

571. extension 572. stopper slot 58a, 58b. pushing block

581. dodge groove 582. guide rail 583. locating pieces

584. elongated slot 585. projection 6. batteries

7. press button 701. first chute 702. second chutes

723c. straight flange 724c. hypotenuse 725. baffle plates

741. top 742a, 742b. afterbody 74c. guide plate

75c. stop column 79. oscillating deck 791. first pins

792. second pin 9a, 9b. working head

Detailed description of the invention

Hand-held tool of the present invention preferred embodiment in, hand-held tool is can realize boring and screwdriver functionHand-held type multifunctional electric drill, also has direct current and dividing of exchanging in electric drill, present embodiment is preferably taking direct current multifunction drill as exampleBe specifically described.

Shown in seeing figures.1.and.2, this direct current multifunction drill comprises casing 1, motor 2, battery 6, transmission mechanism 3a, companyFitting 51a, working head supporting mechanism and output shaft 4a. Casing 1 passes through screw (not shown) by symmetrical two and half housingsClose up and assemble, handle 11 parts that it has horizontal component and arranges in obtuse angle with horizontal component, the preferred angle of the present inventionDegree at 100 degree between 130 degree, can be pleasant when gripping handle 11 operates like this. Be provided with on the top of handle 11 parts byButton switch 7, battery 6 is arranged on the bottom of handle 11 parts of casing 1, and transmission mechanism 3a is housed in the horizontal component of casing 1.As preferred embodiment, battery 6 can be both the inside that is fixed on handle 11, also can be mounted in power brick and lead toCross power brick and be installed on casing 1, this battery 6 can be lithium ion battery. It should be noted that, here said lithium-ion electricPond is that negative material is the general name of the rechargeable battery of elemental lithium, and according to the difference of positive electrode, it can form many systems, as" lithium manganese " battery, " lithium iron " battery etc. In the present embodiment, lithium ion battery is that a joint rated voltage is 3.6V(volt) lithiumIon battery. Certainly, battery 6 can be also the battery types well known to those skilled in the art such as NI-G, ni-mh.

Transmission mechanism 3a comprises by (taking the right side of drawing as rear) before backward the planetary gear reducing mechanism being driven by motor 231a and pinion gear mechanism 30a, wherein pinion gear mechanism 30a is connected with output shaft 4a and rotatablely moving of motor 2 is passed to defeatedShaft 4a. Working head supporting mechanism is for accommodating different working heads, and the working head here mainly refers to that direct current multifunction drill is normalWith crosspoint tip screwdriver head, flat blade screwdriver bit, drill bit etc., move axially through working head supporting mechanism by operation connector 51a orLeave working head supporting mechanism, just can between different working heads, change fast, thereby electric drill can boreHole, tighten or unclamp different screws.

Motor in the preferred embodiment for the present invention is motor 2, and motor 2 has from electric machine casing extended motor forwardAxle 21. Motor 2 is fixed in casing 1, and a gear-box 22 is fixed in casing 1 and is positioned at the front portion of motor 2, gear-box 22 forAccommodate planetary gear reducing mechanism 31a, casing 1 comprises the fore shell 13 that is connected to its front end, and pinion gear mechanism 30a is housed in fore shellIn 13. Pinion gear mechanism 30a comprises the first gear 301a being connected with planetary gear reducing mechanism 31a, engages with the first gearThe second gear 302a and driven and the 3rd gear 303a of synchronous rotary with it output shaft 4a last week by the second gear 302aTo the fixing external tooth 403 that is provided with, thereby the 3rd gear 303a engages with external tooth 403 and drives output shaft 4a to rotate. Wherein planet toothWheel reducing gear 31a is provided with arrangements for speed regulation, and by operation setting, the speed switch bar (not shown) on casing drives theThereby secondary gear ring moves axially from elements different in planetary gear reducing mechanism 31a engagement and realizes the different rotating speed of output,Such speed switches to technology well-known to those skilled in the art, and applicant does not repeat them here.

Pinion gear mechanism 30a arranges three gears just in order to make the inner space of instrument compacter, thereby does not affectOutside is attractive in appearance. Certainly, also can be arranged to as required a gear or two gears. In addition, transmission mechanism 3a is notBe confined to above-described form, transmission mechanism can only include planetary gear reducing mechanism 31a, or only includes pinion machineStructure 30a, or other the transmission mechanism that rotatablely moves, as ratchet mechanism, turbine mechanism etc. Wherein motor shaft 21 extends and rowStar gear reduction 31a engagement, planetary gear reducing mechanism 31a will rotatablely move and pass to pinion gear mechanism 30a, pinionThe 30a of mechanism drives output shaft 4a rotation again. When motor 2 moves like this, by planetary gear reducing mechanism 31a, pinion gear mechanism30a, is finally exported by output shaft 4a. This shows, the driving-chain in present embodiment is motor-transmission mechanism-outputAxle, connector is not as a part for driving-chain, and those skilled in the art can expect easily certainly, and driving-chain also canTo be as motor-transmission mechanism-connector-output shaft, connector is as a part for driving-chain. In addition, reducing gear byThird-level planetary slows down and the two poles of the earth parallel axes deceleration system forms to obtain wanted output speed, in other embodiments,Depending on the rotating speed of required output, reducing gear can only include secondary planet deceleration system, or other deceleration systems.

Working head supporting mechanism in present embodiment is preferably the box-like storage folder 52a that is roughly cuboid, storageThe 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 accommodated storehouse521a, accommodates like this in the 521a of storehouse and just can accommodate long working head, such as drill bit, long screwdriver bit etc. Storage folder 52a phaseAxial restraint for casing 1 along output shaft 4a, connector 51a moves axially to drive with respect to casing 1 and is housed in wherein oneThe individual working head 9a accommodating in the 521a of storehouse enters output shaft 4a, or connector 51a inhales by the magnet 511 that is arranged on its front endLive in working head 9a and drive it to turn back to accommodate in the 521a of storehouse, the connector 51a is here only for releasing or retract working head9a, as the part of driving-chain. Storage folder 52a is supported on casing 1 and is positioned at the top of transmission mechanism 3a, storage folderPlanetary gear reducing mechanism 31a axial overlap in 52a and transmission mechanism 3a and with motor 2 part axial overlaps, like this canMake complete machine compact, save space.

On casing 1, be slidably connected with slip lid 53a, the edge of slip lid 53a is provided with guide rail 531, on corresponding casing 1, establishesHave gathering sill (figure does not look), slip lid 53a is arranged in gathering sill and can be slid axially with respect to casing 1 by its guide rail 531. WhenSo, can be also, on slip lid 53a, gathering sill is set, the mode that guide rail is set on casing 1 moves slip lid 53a, this enforcement sideIn formula, drive connector 51 to move axially by mobile slip lid 53a.

Storage folder 52a is supported on casing, and in electric drill work, slip lid 53a and fore shell 13a butt, like this canStorage folder 52a and connector 51a are closed; When electric drill is changed working head, slip lid 53a separates with fore shell 13aAnd drive working head to get back to accommodate storehouse 521a.

Output shaft 4a is form of sleeve, and generally output shaft arranges six sides' accepting hole 41, can installment work in it9a, working head cross section is the hexagon matching with accepting hole 41, can use like this working head 9a of standard. Output shaft 4a is logicalCross bearings on fore shell 13a. Certainly, accepting hole 41 can be also other shapes, as long as it is passable to meet output shaft 4aDrive working head 9a rotation.

The automatic switching control equipment that is provided with automatic switchover working head on the multifunction drill of present embodiment, that is to say onlyOperating slip lid 53a drives connector 51a to leave to accommodate storehouse 521a, remove the restriction to storage folder 52a motion, storage folder 52aBe moved to the next one in the effect of automatic switching control equipment and accommodate storehouse 521a and the axial corresponding position of output shaft 4, without operationPerson more manual mobile storage folder 52a selects working head.

Fig. 1 is depicted as the first embodiment of the preferred direct current multifunction drill of the present invention to Figure 22. Present embodimentIn, automatic switching control equipment comprises the movement conversion mechanism being arranged between storage folder 52a and slip lid 53a, slip lid 53a Linear-movingDrive storage folder 52a along being axially the direction translation of angle with output shaft 4a by movement conversion mechanism, preferred translationDirection is axial perpendicular to output shaft 4a's. The movement conversion mechanism here comprises the chute 72c and the pivot that are arranged on slip lid 53aAxle 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 inIn the square groove of storage folder 52b, the second pin 792 is arranged in chute 72c and can in chute 72c, slides. Chute 72c hasAlong axially symmetrically arranged two straight flange 723c and the hypotenuse 724c that is connected with two straight flanges respectively of output shaft 4a, two hypotenusesFormation oblique angle, 724c intersection portion, oblique angle portion is with respect to two straight flange 723c evaginations and towards motor 2, and establish at the middle part of chute 72cHave 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 pin792 diameter, moves in the track that the second pin 792 can form between two baffle plates 725, two other baffle plate 725 HesDistance between two corresponding straight flange 723c is also the diameter that is substantially equal to the second pin 792, and the second pin 792 can be at gearMotion in the track forming between plate 725 and its corresponding straight flange 723c, two baffle plates 725 are divided into first by chute 72c and slideGroove 701 and the second chute 702. Slip lid 53b head lamp brush guard pivot is connected with guide plate 74c, and guide plate 74c is positioned at chute 72c away from tiltedlyThe position of limit 724c, guide plate 74c is roughly Y type, and the single head end of Y type guide plate 74c is towards hypotenuse 724c. In chute 72c, establishHave stop column 75c, stop column 75c is positioned at the middle part of the double end end of Y type guide plate 74c, and it is upper that stop column 75c is fixed on slip lid 53b,Guide plate 74c can be around the axis rotation perpendicular to chute 72c, like this double end end of Y type guide plate 74c can select one withStop column 75c conflicts, thereby guide plate 74c is stopped post 75c, restriction can only be rotated in certain scope, wherein at guide plateWhen 74c remains on the position contacting with stop column 75c, the single head end of guide plate 74c is less than to the distance of one of them baffle plateThe diameter of two pins 792, is less than the diameter of the second pin 792 to the distance of another baffle plate, can ensure like this second pinIn 792 processes of sliding in chute 72c, can move according to definitive orbit. On stop column 75c, be provided with magnet or stopPost itself is exactly magnetic column, and guide plate 74c is made up of permeability magnetic material, the double end end of guide plate 74c whichsoever with stopPost 75c conflicts and will remain on the position of contact, has ensured that the second pin 792 can enter predetermined track smoothly.

The action of working head 9 of automatically switching in such scheme moves axially realization by operation slip lid 53b, namelyOperation slip lid 53b slides the second pin 792 in chute 72c, before storage folder 52a moves, need connector 51c withAccommodate storehouse 521a and separate, and operation connector 51c moves and also moves axially realization by operation slip lid 53b, so just needTo move axially and make connector 51c after storehouse 521a separates, operate again slip lid 53b and moved axially with accommodating by operation slip lid 53bBecome to automatically switch, in order to prevent that connector 51c from continuing along with slip lid 53b moves, can and accommodate storehouse 521a at connector 51c and divideFrom after slip lid 53b idle stroke is slided, slip lid 53b continues to move axially and the relative casing of connector 51c 1 is fixing, concreteImplementation has a lot, and engaging piece 55a is preferably set in present embodiment between slip lid 53b and pushing block 58a, and pushing block 58a connectsBe connected on engaging piece 55a upper, engaging piece 55a is stuck in the stopper slot 539c being arranged on slip lid 53b, engaging piece 55a and slip lid 53bBe located by connecting by elasticity vertically, engaging piece 55a can overcome resilient force and move until again in stopper slot 539cLocated by elasticity, so just realized another idle stroke of slip lid 53b.

Conventional screwdriver bit length is probably one inch 2.54 centimetres, and the beeline that connector moves is released screwdriver bitStorage folder, the distance of screwdriver bit length that the chances are, and operation slip lid moves 3 centimetres of left and right and can not bring impact to operation, but asThe long efficiency that will affect operator of distance that fruit is mobile, especially 5 centimetres of above distances of operation slip. Present embodimentMiddle storage folder 52a accommodates screwdriver bit or the drill bit that length is grown, and as the screwdriver bit of two inches, storage is pressed from both sides 52a's like thisLength is longer, and the distance that connector 51a need to be moved is also longer, when connector 51a separates with accommodating storehouse 521a, and slip lid53a moves to the rear end of motor 2, can make like this length of complete machine very long, for this reason, in present embodiment in slip lid 53a and connectionBetween part 51a, stroke amplifying mechanism is set, slip lid 53a linear movement drives stroke amplifying mechanism to drive connector 51a motion, fromAnd the movement travel of connector 51a is greater than the movement travel of slip lid 53a, that is to say that the distance moving by slip lid 53a is less thanThe distance that connector 51a moves realizes connector 51a and accommodates storehouse and separate.

Shown in Fig. 3, in an embodiment provided by the invention, stroke amplifying mechanism can be also to connectLinkage 200, linkage comprises one group of the first half connecting rod 201 that are connected with connector 51c pivot, one group and casing 1 pivotThe second half connecting rods 202 that are connected and be pivotally connected to respectively one group of the first half connecting rod and one group of the second half connecting rod between at leastOne group of connecting rod 203 arranged in a crossed manner. On connector 51c, be provided with the first pin-and-hole 513, the first bearing pins 514 through the first half connecting rodsOne end of 201 is stuck in the first pin-and-hole 513, thereby between the first half connecting rods 201 and the first bearing pin 514, matched in clearance the first half connectsBar 201 can rotate around the first bearing pin 514. The set-up mode of the second half connecting rods 202 is identical with the first half connecting rods 201, hereinRepeat no more. Casing 1 comprises the upper cover 14 that is fixed on motor top, above covers to be provided with the second pin-and-hole 143, the second bearing pins 144 and to wearOne end of crossing the second half connecting rods 202 is stuck in the second pin-and-hole 143, matched in clearance between the second half connecting rods 202 and the second bearing pin 144Thereby the second half connecting rods 202 can rotate around the second bearing pin 144. Every group of connecting rod 203 arranged in a crossed manner comprises that at least two are enclosedThe connecting rod 203 arranging around same pivotal axis, connects in the quantity of half connecting rod and every group of connecting rod 203 arranged in a crossed manner in every group of half connecting rodThe quantity of bar equates, wherein one end of the connecting rod 203 in one group of connecting rod 203 arranged in a crossed manner respectively with the first half connecting rod 201 pivotsTurn connection, one end of the connecting rod 203 in other one group of connecting rod 203 arranged in a crossed manner is connected with the second half connecting rod 202 pivotables respectively,Between every group of connecting rod 203 arranged in a crossed manner, connect by interlinking lever end pivotable respectively, can intersect by control link 203 like thisThe pivot at place moves axially and linkage is stretched and shrink along output shaft. In present embodiment, preferred every group of half connecting rod arranges threeRoot half connecting rod, every group of same connecting rod 203 arranged in a crossed manner arranges three connecting rods, wherein has two connecting rods to be parallel to each other and relativelyFixing, another root connecting rod is arranged between two connecting rods, and arranging three is intensity in order to increase linkage, while making it flexibleNot yielding.

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 rodThe suitable change of principle of mechanism, equally can as the first half connecting rods 201, the second half connecting rods 202 and connecting rod 203 arrange respectively twoTo reach identical effect. Certainly, linkage also can all be made up of connecting rod 203, connecting rod 203 and connector 51c and machineThe connected mode of shell 1 can be to be slidably connected, and can linkage be stretched by gathering with separating of control link 203 endsAnd contraction, also can move axially and linkage is stretched and shrink along output shaft by the pivot at control link mechanism middle part.In addition, connector 51c is along output shaft 4a axially-movable with push-and-pull working head, therefore the flexible direction of linkage should be parallel to defeatedShaft 4a is axial, that is to say that the plane parallel at linkage place is axial in output shaft 4a, in order to make linkage and otherCooperation between element is compacter, and linkage best level arranges, and the plane at linkage place is perpendicular to vertical sideTo, thereby the volume that while having enough spaces to hold linkage contraction in casing 1, its width increases.

Between linkage and slip lid 53a, be provided with pushing block 58a, the end face of pushing block 58a is roughly N-shaped, and it is along outputAxle 4a axially has certain length, and the inside of pushing block 58a can be passed for linkage, and the N-shaped two edges of pushing block 58a form fixedPosition piece 583, locating piece 583 can be stuck in first gathering sill 147 of upper cover 142 of casing 1 to make the pushing block 58a can be alongThe first gathering sill 147 moves. The N-shaped top of pushing block 58a is axially provided with elongated slot 584 along output shaft 4a, and elongated slot 584 is positioned at and pushes awayOne end of piece 58a length direction, the other end of pushing block 582a length direction is provided with projection 585, and projection 585 can be connected in cunningThereby lid 53b makes slip lid 53b drive pushing block 58a to move. The pivotal point at two connecting rod 203 middle parts in linkage is provided with cardPin 204, bayonet lock 204 also can move along elongated slot 584 through elongated slot 584, and the upper end of bayonet lock 204 is provided with locating flange2041, the diameter of locating flange 2041 is greater than the width of elongated slot 584, and locating flange 2041 can not pass elongated slot 584 like this, fromAnd bayonet lock 204 can be supported on pushing block 58a above, between bayonet lock 204 and connecting rod 203, be arranged to along bayonet lock 204 axial restraints, connectBar 203 axially cannot move along bayonet lock 204, thereby it is upper by bayonet lock 204, linkage to be supported on to pushing block 58a, the company of guaranteeLinkage can not be out of shape when flexible. The length of pushing block 58a can meet connection bayonet lock 204 and slip lid 53b, pushing block 58aSlip lid 53b can directly be connected with slip lid 53b, also can indirectly be connected, as long as can drive the pushing block 58a motion company of drive thenFitting 51c motion, or be arranged to the mode that slip lid 53b can directly be connected with bayonet lock 204. Pushing block 58a is set is onlySlip lid 53b has an idle stroke with respect to connector 51c, namely by the elongated slot 584 of bayonet lock 204 on pushing block 58aMotion realizes slip lid 53b motion and not motion thereupon of connector 53c, in the time that bayonet lock 204 is connected to the inwall of elongated slot 584, and slip lid53b can drive connector 53c to move. Acting on below of idle stroke can be described in detail.

11 groups of 203,11 groups of connecting rods 203 arranged in a crossed manner of connecting rod arranged in a crossed manner and the first half are preferably set in linkageConnecting rod 201, the second half connecting rods 202 just form 12 groups of quadric chains, form 12 parallel four limits when linkage stretchesShape, moves axially to realize stretching, extension or the contraction of linkage by operating the pivotal axis at connecting rod arranged in a crossed manner 203 middle parts.The flexible element (as pushing block 58a, slip lid 53b etc.) of drivening rod mechanism can be selected and one group of connecting rod 203 arranged in a crossed manner whereinThe pivot at middle part is connected, and the stroke of connector 53c can be exaggerated or dwindle with respect to the stroke of slip lid 53b like this. This realityExecute pushing block 58a in mode and the 4th group of connecting rod 203(arranged in a crossed manner calculates from the second bearing pin 144 places) middle part pivotable bayonet lock204 are connected, and operation slip lid 53b makes bayonet lock 204 move to the second bearing pin 144, the synchronized movement of slip lid 53b and bayonet lock 204, i.e. cardPin 204 has moved and has made the distance of four parallelogram compression, and connector 51c is along with the first bearing pin 514 moves, the first bearing pin514 have moved and have made the distance of 12 parallelogram compressions, slip lid 53b and connector 51c like this with respect to the second bearing pin 144Movement travel than be not counted in the idle stroke of slip lid for 1:3(). So visible, by operating different connecting rods arranged in a crossed mannerThe pivotable bearing pin axially-movable at 203 middle parts, can realize the movement travel ratio that slip lid 53b is different from connector 51c, present embodimentThe movement travel of middle slip lid 53b and connector 51c than at 1:12 between 1:1, can ensure so compactness that each element connects,Reliably, simultaneously linkage with accommodate storehouse 521a and can not interfere. Certain those skilled in the art are easy to can be according to upperState the movement travel ratio that principle arranges other, as passed through to increase the quantity of connecting rod 203 arranged in a crossed manner.

Electric drill need to axially be pressed on working head 9 on screw or workpiece in operating, working head 9 like thisCan be subject to a reverse responsive to axial force, axial force passes to connector 51 just by working head 9, can produce connector 51 afterMove, for fear of this problem, lock dog 57 is set between slip lid 53b and linkage, the upper cover 14 of casing 1 is provided with and firstThe second gathering sill 128 that gathering sill 147 is parallel, lock dog 57 is provided with extension 571 towards the one side of output shaft 4a, extension 571Be stuck in the second gathering sill 128 and can slide along the second gathering sill 128. On lock dog 57, be provided with stopper slot 572, stopper slot572 width and the linkage width in the time of extended configuration is roughly equal, and the length of stopper slot 572 need ensure can be completeAccommodate the second half connecting rods 202 in the time of extended configuration, like this in the time that working head 9 is pressed on workpiece, the stressed meeting of linkageProduce the tendency of shrinking, linkage need to be in the expansion of its width, and stopper slot 572 limits the second half connecting rods 202 towards connectingThe width motion of linkage, moves axially therefore working head 9 cannot produce. Because what stopper slot 572 was subject to is along connecting rod machineThe expansionary force of the width of structure, therefore lock dog 57 can not produce axial displacement because working head 9 axially compresses workpiece, so justCan in electric drill work, carry out axial limiting to working head 9.

When electric drill is in running order, pushing block 58a and the axial butt of lock dog 57 are need to change working head time, slidingLid 53b is a mobile segment distance S first, and pushing block 58a drives lock dog 57 also to move apart from S simultaneously, and bayonet lock 204 is in elongated slot 584Mobile make pushing block 58a in this segment distance can not drive bayonet lock 204 to move, the second half connecting rod 202 moving along with lock dog 57Moving gradually with stopper slot 572 away from until the second half connecting rods 202 separate with stopper slot 572 with the pivotable junction of connecting rod 203, asThis has just removed the restriction that stopper slot 572 linkage are shunk, thus connector 51c can along with the contraction of linkage toAway from the direction motion of output shaft 4a. Can be found out by above-mentioned, the idle stroke of slip lid 53b is in order to remove the axial of working head 9Spacing, thus can realize replacing working head. In addition, be fixedly installed lock pin 532 on slip lid 53b, lock dog 57 is axial with lock pin 532Butt, is changing after good berth head, and slip lid 53b can drive lock dog 57 to move to the direction of output shaft 4a by lock pin 532, lock dog57 just can return back to the position of stopper slot 572 and linkage butt.

In above-mentioned preferred linkage, the quantity of connecting rod 203 arranged in a crossed manner is more, in order to prevent that linkage from stretchingIn the process of contracting, occur along the swing on its width, can position the motion of the pivotable bearing pin at connection rod set middle part,Wherein can carry out respectively at the two ends of linkage spacing. Connect one end of connector 53c at linkage, on connector 53cThe diameter that the width of the first slit 515, the first slits 515 and connection rod set middle part pivotable bearing pin is axially set along output shaft 4a roughlyEquate, the length of the first slit 515 need ensure no matter linkage is in stretching or contraction state, at least one connection rod setThe pivotable bearing pin of 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 theSecond slit 146 of one slit 515 on same straight line, same, the width of the second slit 146 and connection rod set middle part pivotal pinThe diameter of axle is roughly equal, and the length of the second slit 146 need ensure no matter linkage is in stretching or contraction state, at leastThe pivotable bearing pin at a connection rod set middle part is stuck in the second slit 146. Like this, no matter linkage stretches or shrinks, at leastThe pivotable bearing pin at two connection rod set middle parts, along the rectilinear motion at the first slit 515 and the second slit 146 places, determines one at 2Line, linkage can only axially stretch or shrink along output shaft 4a, thereby has ensured the reliability of connecting rod mechanism movement.

Linkage drives connector 51c to move accommodating in the 521a of storehouse when stretching or shrinking, and connector 51c and accommodatingThe inwall of storehouse 521a certainly will have friction, will relatively require great effort by slip lid 53b operator link mechanism kinematic like this, for this reason, thisDirective wheel 516 is set in embodiment on connector 51c, and directive wheel 516 can contact with the inwall of accommodating storehouse 521a, guidingWheel 516 can rolling support in the first slit 515, and non-interference with the pivotable bearing pin at connection rod set middle part, make connectorThe designs simplification of 51c. Directive wheel 16 preferably arranges two, is vertically symmetricly set in connector 51c upper, makes connectorThe support of 51c is balance relatively. 4 directive wheels 516 are preferably set in present embodiment, and vertically symmetry respectively arranges two,Thereby connector 51c motion is vertically more steady.

Coordinate with reference to shown in Figure 23, the upper one end contacting with working head 9 of connector 51c is provided with bracing or strutting arrangement, supports dressPut and can or separate with working head butt, and be against while rotating on workpiece when working head, can be by work by bracing or strutting arrangementThe sliding friction of doing between head and connector 51c becomes rolling friction. Concrete, bracing or strutting arrangement comprises support member 518 and rollsPart 519, support member 518 is around rotatable being supported on connector 51c of axis of output shaft 4a, and support member 518 is with respect to connectingFitting 51c axial restraint arranges, and magnet 511 can be arranged on support member 518, can not affect like this connector 51c band and start buildingDo 9 and get back to and accommodate storehouse 521a, rolling member 519 is arranged between support member 518 and connector 51c, is used for carrying electric drill workTime the axial force of working head 9 while rotating, thereby the frictional force effect that support member 518 is subject to working head 9 while rotating can be along with workDo 9 rotation, between support member 518 and connector 51c, for the contact of rolling, reduced between support member 518 and connector 51cFriction, and working head 9 separates by support member 518 with connector 51c, prevents that working head 9 or connector 51c from damaging because of frictionBad, thus the service life of growth electric drill and working head 9. The rolling member 519 here refers to the rolling elements such as roller, ball, needle roller,Can between rolling member 519 and support member 518 and/or between rolling member 519 and connector 51c, wear-resistant gasket be set in addition5191, both prevented the wearing and tearing of support member and connector, can change in time depending on the degree of wear of wear-resistant gasket 5191 simultaneously, subtractLittle use cost. In addition, bracing or strutting arrangement also can comprise end face bearing (also claiming plane bearing), and working head and end face bearing supportConnect, or rolling member 519 is rotatable is arranged on connector, working head and rolling member 519 butts, can realize and rolling like thisMoving support.

With reference to Figure 24, to Figure 31, in second embodiment provided by the invention, stroke amplifying mechanism is preferably moving slidingWheel mechanism, is the principle of resistance arm twice according to movable pulley mechanism medium power arm, and the stroke of connector is exaggerated. Specifically, between slip lid 53b and connector 51d, movable pulley 210 being set, movable pulley 210 can be used as slip lid 53b and drives connectorThe actuator of 51d motion, it is upper that movable pulley 210 is arranged on pushing block 58b, between pushing block 58b and slip lid 53b, idle stroke can be set,Certainly, if moving through other modes, realizes release connector 51d, as button release, and can be at pushing block 58b and slip lidIdle stroke is set between 53b, can directly drives movable pulley 210 to move linearly by slip lid in other words. On movable pulley 210, walk around twoSection flexible cable, the flexible cable is here the general name of rope, band, cable wire, line, wire etc., wherein one end of first paragraph flexible cable 211 is fixed onOn casing 1, the other end is fixed on the rear portion of connector 51d away from output shaft 4a, and connector 51d can be realized in preferably endShort setting, thus instrument entirety is compacter. Fixed form can be screw in compression, pass on casing 1 or connector 51dHole knotting etc., first paragraph flexible cable 211 self-retainings one end on connector 51d is with counterclockwise on movable pulley 210, thisIn be less than 360 degree around referring to flexible cable with contacting of movable pulley 210, when slip lid 53b drive movable pulley 210 towards output shaft 4aDirection when motion, movable pulley 210 drives the direction motion of connector 51d to output shaft 4a by first paragraph flexible cable 211, connectsThe straight-line distance of part 51d is the twice of movable pulley 210 straight-line distances. One end of second segment flexible cable 212 is fixed onOn casing, the other end is fixed on connector 51d closes on the front portion of output shaft 4a, and preferably second segment flexible cable 212 is fixed on connectorOne end on 51d connector 51d length 1/4th to 1/2nd between because, at multifunction drill in workWhile doing position, movable pulley 210 is positioned at connector 51d one end away from output shaft 4a, and 210, movable pulley needs mobile link part 51dThe 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 onConnector 51d closes on the end of output shaft 4a, so just can save the length of flexible cable, thereby reduce cost. Second segment flexible cableSelf-retaining one end on connector 51d is walked around movable pulley 210 in a clockwise direction, when slip lid 53b drives movable pulley 210 to farFrom direction when motion of output shaft 4a, movable pulley 210 drives connector 51d output shaft 4a dorsad by second segment flexible cable 212Direction motion, the straight-line distance of connector 51d is the twice of movable pulley 210 straight-line distances.

Concrete in the time of operation, pull back slip lid slip lid 53b, slip lid 53b drives after idle stroke by engaging piece 55aPushing block 58b moves backward, pushing block 58b drive movable pulley 210 also backward motion, because of second segment flexible cable 212 on movable pulley 210 around, therefore second segment flexible cable 212 is along with the moving belt of the movable pulley 210 part 51d that is dynamically connected moves backward, until connector 51d drivesWorking head 9b gets back to and accommodates storehouse 521a and exit and accommodate storehouse 521a, and as the position of Figure 26, be now limited cannot for connector 51dContinue to retreat, continue operation slip lid 53b and move backward, by second idle stroke between slip lid 53b and engaging piece 55a, depositStorage folder 52a moves to another and accommodates the position that storehouse 521a is corresponding with output shaft 4a under the effect of automatic switching control equipment, as figurePosition shown in 27, moves forward slip lid 53b, and slip lid 53b drives pushing block 58b forward by engaging piece 55a after idle strokeMotion, pushing block 58b drive movable pulley 210 also travel forward, because of first paragraph flexible cable 211 on movable pulley 210 around, therefore first paragraphFlexible cable 211 is along with the moving belt of the movable pulley 210 part 51d that is dynamically connected moves forward, until connector 51d will accommodate in the 521a of storehouseWorking head 9a advances output shaft 4a and exposes from the front end of output shaft 4a, as the position of Figure 24. The structure of automatic switching control equipment is formerManage identically with the first embodiment, be not described in detail here.

Be depicted as another preferred embodiment of movable pulley mechanism to Figure 31 with reference to Figure 28, in order to make the assembling letter of flexible cableSingle, two sections of flexible cables can form without the flexible cable disconnecting by one, and flexible cable is divided into the according to the position connecting from connector 51d is differentOne section of flexible cable 211a and second segment flexible cable 212a, the end that the two ends of flexible cable connect connector 51d be installed with a die casting 215a,215b, relative with the end of flexible cable fixing by the mode of die casting, one end that flexible cable is provided with a die casting 215b is connected to connectionMovable pulley 210 is also walked around in the counterclockwise direction in the rear portion of part 51d, and one end that flexible cable is provided with a die casting 215a is connected to connectionThe anterior of part also walked around movable pulley 210 along clockwise direction, and the middle part of flexible cable is walked around in the counterclockwise direction and is arranged on casing 1Fixture 2101 and being wrapped on the steady pin 2102 being arranged on casing 1, the winding here refers to flexible cable and steady pin2102 contact is greater than 360 degree, and preferably 720 degree, are wound around two circles, so both can realize the self-locking of flexible cable, Er QienengThe length of enough flexible cables of adjusting easily movable pulley 210 both sides. Steady pin 2102 and a die casting 215b are with respect to vertical direction positionIn a side of movable pulley 210, fixture 2101 and a die casting 215a are positioned at the opposite side of movable pulley 210 with respect to vertical direction.Here fixture 2101 and steady pin 2102 are equivalent to fixed pulley, realize the fixing of flexible cable middle part, that is to say that flexible cable is provided withThe two ends of a die casting 215a, 215b all have corresponding canned paragraph, thereby the stroke that can realize on both direction amplifies.

It is the folding of flexible cable that the stroke that movable pulley mechanism is realized amplifies what utilize, no matter that is to say movable pulley 210 whetherCan rotate and can realize stroke amplification, certainly in order to reduce the friction between flexible cable and movable pulley 210, movable pulley 210 canRotation to be arranged on pushing block 58b upper, the friction between flexible cable and movable pulley 210 is rolling friction, can increase like this flexible cableService life. In order to prevent that flexible cable follow-up pulley 210 from departing from, can on movable pulley 210, raceway be set, raceway can arrange twoIndividual, arrange along the direction interval of the rotation of movable pulley 210, two raceways can hold respectively first paragraph flexible cable 211,211aWith second segment flexible cable 212,212a.

Because of the existence of the factor such as assembly precision, foozle, flexible cable may have loosening phenomenon with respect to movable pulley 210,For make flexible cable with respect to movable pulley 210 all the time in tensioning state, can between flexible cable and connector 51d, tensioning device be setStructure, strainer for by flexible cable with respect to movable pulley 210 tensionings, concrete, can be between connector 51d and the end of flexible cableFlexible member 214 is set, and flexible member 214 applies to a die casting 215a, 215b and connector 51d to make flexible cable with respect to movable pulleyThe power of 210 tensionings, flexible cable just can be always in tensioning state like this. Can certainly be at flexible cable connection fixture 2101 or solidOne end of rationed marketing 2102 arranges flexible member, makes stiff end with respect to movable pulley 210 tensionings. Present embodiment Elastic element214 are preferably stage clip, and stage clip is arranged between connector 51d and die casting 215. Certainly, flexible member 214 can be also otherMode, as torsion spring, shell fragment etc.

In addition, in order further to eliminate the impact of assembly precision, foozle, can on connector 51d, flexible cable be setThe adjustment screw 213 that can pass, adjustment screw 213 can move to regulate with respect to connector 51d the die casting of flexible cable end215a, 215b, with respect to the position of connector 51d, adjust the use length of flexible cable then. In order to save space, die casting head215a can be stuck in an adjustment block 216, and adjustment screw 218 is connected with adjustment block 216, and one is fixed on connector 51dScrew 217 limits adjustment block 216 to be merely able to move within the specific limits, and adjustment screw 218 is by screwing mode in various degreeRegulate the position of adjustment block 216 on connector 51d, thereby regulate a die casting 215a of flexible cable with respect to the position of connectorPut, can realize too the use length of adjusting flexible cable.

In order to make the structure of multifunction drill compacter, can make rotation and the output shaft 4a axle of movable pulley 210Line is vertical, and it is more laborsaving to make to operate slip lid 51b. Movable pulley 210 can be also non-rotating with respect to slip lid 53bSetting, the pin that can be walked around by flexible cable on slip lid 53b as being fixed on, rope etc. According to above-mentioned principle, those skilled in the art canThe movement travel of movable pulley 210 with the movement travel that realizes connector 51d by the mode of setting up movable pulley or fixed pulleyThe natural several times that are more than or equal to 2 times.

Below by as an example of the first embodiment example by fast to the middle working head of the preferred direct current multifunction drill of the present inventionThe process that speed is changed elaborates.

Direct current multifunction drill shown in Fig. 1 and Fig. 3, Fig. 4 is in running order, to shown in Fig. 7, works as needs with reference to Fig. 5While changing the working head 9b of another type, operation slip lid 53b is along diagram arrow M direction displacement S, and slip lid 53a passes throughEngaging piece 55a drives pushing block 58a to move, and bayonet lock 204 is along with the movement of pushing block 58a and the front side butt of elongated slot 584, pushing block 58aDrive lock dog 57 also to move apart from S, pivotable connecting portion and the lock dog 57 of the second half connecting rods 202 and connecting rod 203 arranged in a crossed mannerOn stopper slot 572 separate, thereby removed the restriction that linkage is shunk, the second pin 792 of oscillating deck 79 is along with cunningThe slip of lid 53b moves to the position shown in Fig. 8 in chute 53c.

, continue to move along the direction operation slip lid 53b of diagram arrow M to shown in Figure 10 with reference to Fig. 8, slip lid 53b continues logicalCross engaging piece 55a and drive pushing block 58a to move, pushing block 58a shrinks until linkage is complete by bayonet lock 204 drivening rod mechanismsBe contracted in together, connector 51c is positioned at output shaft 4a working head 9a along with the contraction of linkage drives moves to and accommodatesIn the 521a of storehouse, connector 51c separates with accommodating storehouse 521a, and the second pin 792 of oscillating deck 79 is along with the slip of slip lid 53b is being slidedIn groove 72c, move to the position of closing on the single head end of guide plate 74c, position as shown in figure 11.

, continue to move along the direction operation slip lid 53b of diagram arrow M to shown in Figure 13 with reference to Figure 11, engaging piece 55a overcomesResilient force moves in stopper slot 539c until the front side butt of engaging piece 55a and stopper slot 539c fixed by hypoelasticity againPosition, the second pin 792 of oscillating deck 79 and the single head end in contact of guide plate 74c, the second pin 792 active forces are in guide plate 74cMake it overcome the magnetive attraction attraction of stop column 75c and produce rotation until the another side of double end end is stopped post 75c magnetic, secondPin 792 is along with the rotation of guide plate 74c is along the border movement of guide plate 74c, and the second pin 792 produces perpendicular to slip lidThe motion of 53b moving direction, makes oscillating deck 79 around its pivot rotation, and the first pin 791 drives storage folder 52a to move to separatelyAccommodate the position that storehouse 521a is corresponding with the accepting hole 41a of output shaft 4a for one, position as shown in Figure 14 and Figure 15.

, reset along the direction operation slip lid 53b of diagram arrow N to shown in Figure 16 with reference to Figure 14, slip lid 53b is by engaging piece55a drives pushing block 58a to move, and bayonet lock 204 is along with the movement of pushing block 58a and the rear side butt of elongated slot 584, the second pin 792 withSlip lid 53b moves along the straight flange 723c of chute 72c and moves to the position shown in Figure 17.

, continue to reset along the direction operation slip lid 53b of diagram arrow N to shown in Figure 19 with reference to Figure 17, slip lid 53b is by cardDetermine piece 55a and drive pushing block 58a to move, pushing block 58a drives bayonet lock 204 that linkage is stretched, and connector 51c enters another receiptsHold storehouse 521a and drive the working head 9b in it to enter output shaft 4a, the second pin 792 is along with slip lid 53b moves along chute 72cStraight flange 723c move to the position shown in Figure 20.

, continue to move along the direction operation slip lid 53b of diagram arrow N to shown in Figure 22 with reference to Figure 20, engaging piece 55a overcomesResilient force moves in stopper slot 539c until the rear side butt of engaging piece 55a and stopper slot 539c being determined by rear side elasticityPosition, lock pin 532 and the axial butt of lock dog 57 on slip lid 53b, and slip lid 53b drives lock dog 57 to output by lock pin 532The direction of axle 4a moves, and lock dog 57 just can return back to the position that stopper slot 572 and linkage 200 partially overlap. Oscillating deck 79The second pin 792 slide along the hypotenuse 724c of chute 72c, the second pin 792 produces perpendicular to slip lid 53 moving directionsMotion, makes oscillating deck around the rotation of its pivot, and now stores double-layered quilt connector and linkage is spacing cannot move, and firstIn the square groove of pin 791 on storage folder, slide into opposite side, position as shown in figure 22.

Repeat above-mentioned steps, just can be replaced with another working head 9a. The movement locus of the second pin in chute 72bMove in circles, in the track that the second pin can form from two baffle plates, move to the first chute 701, then from two baffle platesThereby in the track forming, move to the second chute 702 and form circulation and realize the automatic switchover of working head.

The above-mentioned definition to each element is not limited in various concrete structures or the shape in embodiment, mentioned, this areaThose of ordinary skill can it be known simply and be replaced. As motor can substitute electricity with gasoline engine or diesel engine etc.Machine; Slip lid is used for driving connector or drives storage folder, and its version can have multiple as pull bar, end cap etc.; In addition,In above-mentioned embodiment, moving to axial between connector and storage folder can be also that connector is fixed, and working head is depositedStorage folder can either also can move radially in axially-movable, and connector can be also and coaxial setting of motor shaft etc. In addition, rightIts structure also has no special requirements, and visual different interior carrys out corresponding change configuration, can increase new element, also can subtractFew unnecessary element.

Claims (14)

1. a hand-held tool, comprising:

Casing;

Output shaft, has the accepting hole that holds working head of axial setting;

Working head supporting mechanism, is arranged in casing at least partly, and described working head supporting mechanism has for support works headSeveral receiving spaces that are set up in parallel, described working head supporting mechanism can be adjusted at least one receiving space and instituteState the axially position of correspondence of accepting hole;

Connector, is arranged in casing, described connector can drive working head in be positioned at accepting hole operating position orBe positioned at the collecting position of working head supporting mechanism;

It is characterized in that: described casing is provided with the operating parts of controlling the motion of described connector, described operating parts and connector itBetween be connected with actuator, described operating parts can be controlled actuator along output shaft axial linear movement, the straight line of described actuatorConversion of motion be connector along the axial rectilinear motion of output shaft, and the movement travel of described connector is greater than described actuatorMovement travel.

2. hand-held tool as claimed in claim 1, is characterized in that: between described casing and connector, be also connected with flexibilityPart, described actuator makes connector rectilinear motion by described flexible piece.

3. hand-held tool as claimed in claim 2, is characterized in that: described connector have close on output shaft front portion andAway from the rear portion of output shaft, one end of described flexible piece is connected to the rear portion of connector and can drives connector towards output shaftMotion; The other end of described flexible piece is connected to the anterior of connector and can drives connector output shaft motion dorsad.

4. hand-held tool as claimed in claim 3, is characterized in that: described flexible piece at least comprises two sections of flexible cables, whereinOne end of first paragraph flexible cable is connected to the rear portion of connector and walks around described actuator along first direction, described first paragraph flexible cableThe other end is fixed on casing, and wherein one end of second segment flexible cable is connected to the anterior also along contrary with first direction of connectorDirection is walked around described actuator, and the other end of described second segment flexible cable is fixed on casing.

5. hand-held tool as claimed in claim 3, is characterized in that: described flexible piece at least comprises one section of flexible cable, described inOne end of flexible cable is connected to the rear portion of connector and walks around described actuator along first direction, and the described other end is connected to connectorAnterior and along walking around in the opposite direction described actuator with first party, setting is walked around along first direction in the middle part of described flexible cableOn fixture on casing and be wrapped on the steady pin being arranged on casing one end of described steady pin and described flexible cableA side that is positioned at described actuator with respect to vertical direction, the other end of described fixture and described flexible cable is with respect to vertical directionBe positioned at the opposite side of described actuator.

6. hand-held tool as claimed in claim 3, is characterized in that: described flexible piece is connected to one end of connector front portionConnector length 1/4th to 1/2nd between.

7. hand-held tool as claimed in claim 3, is characterized in that: described actuator is provided with at least one raceway, instituteThe position of stating raceway is corresponding with described flexible piece.

8. hand-held tool as claimed in claim 7, is characterized in that: described raceway is provided with two, and edge is perpendicular to output shaftIn axial direction, interval arranges.

9. hand-held tool as claimed in claim 3, is characterized in that: between described flexible piece and connector, be provided with tensioning deviceStructure, described strainer is used for described flexible piece with respect to actuator tensioning.

10. hand-held tool as claimed in claim 9, is characterized in that: described strainer comprises flexible member, described bulletProperty element is arranged between one end of flexible piece and connector and/or between the other end and connector of flexible piece.

11. hand-held tools as claimed in claim 3, is characterized in that: between described flexible piece and connector, be provided with adjustingPart, described regulating part can move to regulate the position of described flexible piece with respect to connector with respect to connector.

12. hand-held tools as claimed in claim 11, is characterized in that: the front portion of described connector is provided with adjustment block, instituteStating adjustment block can move with respect to connector, and the other end of described flexible piece is stuck in described adjustment block, and described regulating part is establishedPut between adjustment block and connector, described regulating part is by regulating described adjustment block then to regulate with respect to the position of connectorDescribed flexible piece is with respect to the position of connector.

13. hand-held tools as claimed in claim 1, is characterized in that: described actuator has perpendicular to output shaft axialRotation, described actuator can rotate with respect to described operating parts around its rotation.

14. hand-held tools as claimed in claim 1, is characterized in that: the movement travel of described connector is greater than 5 centimetres.