CN103831796A - Handheld tool - Google Patents
Handheld tool Download PDFInfo
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- CN103831796A CN103831796A CN201210488616.9A CN201210488616A CN103831796A CN 103831796 A CN103831796 A CN 103831796A CN 201210488616 A CN201210488616 A CN 201210488616A CN 103831796 A CN103831796 A CN 103831796A
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Abstract
The invention relates to a handheld tool. The handheld tool comprises a case, an output shaft, a work head supporting mechanism and a connecting piece. The output shaft is provided with an accommodating hole arranged axially and used for accommodating a work head. At least part of the work head supporting mechanism is arranged in the case, the work head supporting mechanism is provided with a plurality of accommodating spaces arranged side and side and used for supporting the work head, and the work head supporting mechanism can be adjusted to the position where at least one accommodating space axially corresponds to the accommodating hole. The connecting piece is arranged in the case and is capable of driving the work head to be located in a work position in the accommodating hole or in an accommodating position of the work head supporting mechanism. The case is provided with an operating piece used for controlling the connecting piece to move, and a driving piece is arranged between the operating piece and the connecting piece; the operating piece can control the driving piece to do linear movement in the axial direction of the output shaft, the linear movement of the driving piece is converted into linear movement of the connecting piece in the axial direction of the output shaft, and the movement stroke of the connecting piece is larger than that of the driving piece.
Description
Technical field
The present invention relates to a kind of hand-held tool, relate in particular to a kind of storage and quick-replaceable drill gun class hand-held tool of realizing working head.
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.In the time needing to tighten the screw of different size in use procedure, change different screwdriver bits according to the difference of screw specification, the screwdriver bit of original installation to be taken off, then load 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, need 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 and operate, especially twist again under the operating mode of screw need to first beat pre-hole, need between drill bit and screwdriver bit, constantly change, will bring great inconvenience to operator like this, cause replacing working head loaded down with trivial details on the one hand, the working head taking off is on the other hand placed easy loss everywhere.Although, in some hand-operated tools, have some storage that can realize working head and quick-replaceables, due to the inherent defect of hand-operated tools, be that moment of torsion is little, operation is hard, makes operator be easy to fatigue, cause inefficiency, 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, and this toolroom machine has motor and transmission device, and transmission device is provided with cutter changing storehouse.On cutter changing storehouse, be provided with the cutter chamber for holding screwdriver bit.One operation saddle can axially travel forward also drive the screwdriver bit that is arranged in this cutter chamber to enter cutter dop through one of them cutter chamber, or the screwdriver bit axially moving through backward in the magnet band cutter dop that is arranged on its front end is got back to cutter chamber.One executing agency is for carrying out axial limiting to operation saddle, executing agency comprises a support lever that axially props up operation saddle, in the time that needs are changed screwdriver bit, depress 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 saddle exits cutter chamber, and rotary cutter is changed storehouse just can select another screwdriver bit.Operation screwdriver bit enters cutter dop or gets back to cutter chamber like this needs direct push-and-pull operation saddle, thereby toolroom machine is corresponding arrange longer just, increase the volume of toolroom machine, 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; 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.
Preferably, be also connected with flexible piece between described casing and connector, described actuator makes connector rectilinear motion by described flexible piece.
Preferably, described connector has and closes on the anterior of output shaft and the rear portion away from output shaft, and one end of described flexible piece 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 to the anterior of connector and can drives connector output shaft motion dorsad.
Preferably, described flexible piece at least comprises two sections of flexible cables, wherein one end of first paragraph flexible cable is connected to the rear portion of connector and walks around described actuator along first direction, the other end of described first paragraph flexible cable is fixed on casing, wherein one end of second segment flexible cable is connected to the anterior also along walking around in the opposite direction described actuator with first party of connector, and the other end of described second segment flexible cable is fixed on casing.
Preferably, described flexible piece at least comprises one section of flexible cable, one end of described flexible cable is connected to the rear portion of connector and walks around described actuator along first direction, the described other end is connected to the anterior and edge of connector and walks around in the opposite direction described actuator with first party, the middle part of described flexible cable is walked around on the fixture being arranged on casing and is wrapped on the steady pin being arranged on casing along first direction, one end of described steady pin and described flexible cable is positioned at a side of described actuator with respect to vertical direction, 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 connector length 1/4th to 1/2nd 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 flexible piece with respect to actuator tensioning.
Preferably, described strainer comprises flexible member, and described flexible member is arranged between one end of flexible piece and connector 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 to regulate the position of described flexible piece with respect to connector with respect to connector.
Preferably, the front portion of described connector is provided with adjustment block, described adjustment block can move with respect to connector, the other end of described flexible piece is stuck in described adjustment block, described regulating part is arranged between adjustment block and connector, and described regulating part is by 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 rotate with respect to described operating parts around its rotation.
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; Transmission mechanism, 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 by arranging stroke amplifying mechanism between operating parts and connector, can reduce the movement travel of operating parts, reduce the size on hand-held tool width simultaneously, thereby make small and exquisite being easy to carry of tool interior compact conformation entirety.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the direct current multifunction drill in preferred the first embodiment of hand-held tool of the present invention when in running order.
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 accommodate storehouse and separate.
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 accommodate storehouse and separate.
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 the working head position corresponding with output shaft in storehouse.
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 in 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 axially locked.
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 the cutaway view of the direct current multifunction drill in preferred second embodiment of hand-held tool of the present invention when in running order.
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 with accommodate storehouse and separate.
Figure 27 is the cutaway view of the direct current multifunction drill in Figure 24, and now storage folder moves to another and accommodates the working head position corresponding with output shaft in storehouse.
The perspective exploded view of the another kind of embodiment of the movable pulley mechanism in the preferred direct current multifunction drill of Figure 28 the present invention.
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
The specific embodiment
Hand-held tool of the present invention preferred embodiment in, hand-held tool is can realize boring and the hand-held type multifunctional electric drill of screwdriver function, also has direct current and dividing of exchanging in electric drill, present embodiment is preferably specifically described as an example of direct current multifunction drill example.
Shown in seeing figures.1.and.2, this direct current multifunction drill comprises casing 1, motor 2, battery 6, transmission mechanism 3a, connector 51a, working head supporting mechanism and output shaft 4a.Casing 1 is closed up and is assembled by screw (not shown) by symmetrical two and half housings, handle 11 parts that it has horizontal component and arranges in obtuse angle with horizontal component, the preferred angle of the present invention at 100 degree between 130 degree, can be pleasant when gripping handle 11 operates like this.Top in handle 11 parts is provided with press button 7, and 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 be installed on casing 1 by power brick, and this battery 6 can be lithium ion battery.It should be noted that, said lithium ion battery is that negative material is the general name of the rechargeable battery of elemental lithium here, and according to the difference of positive electrode, it can form many systems, as " lithium manganese " battery, and " lithium iron " battery etc.In the present embodiment, lithium ion battery is that a joint rated voltage is 3.6V(volt) lithium ion battery.Certainly, battery 6 can be also the battery types well known to those skilled in the art such as NI-G, ni-mh.
Motor in the preferred embodiment for the present invention is motor 2, and motor 2 has from electric machine casing extended motor shaft 21 forward.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, and gear-box 22 is for accommodating planetary gear reducing mechanism 31a, and casing 1 comprises the fore shell 13 that is connected to its front end, and pinion gear mechanism 30a is housed in fore shell 13.Pinion gear mechanism 30a comprises the first gear 301a being connected with planetary gear reducing mechanism 31a, the the second gear 302a engaging with the first gear and being driven and the 3rd gear 303a of synchronous rotary with it by the second gear 302a, what output shaft 4a above circumferentially fixed is provided with external tooth 403, thereby the 3rd gear 303a engages drive output shaft 4a rotation with external tooth 403.Wherein planetary gear reducing mechanism 31a is provided with arrangements for speed regulation, by operation setting, thereby the speed switch bar (not shown) on casing drives second level gear ring to move 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 affect the attractive in appearance of outside.Certainly, also can be arranged to as required a gear or two gears.In addition, transmission mechanism 3a is not limited to above-described form, and transmission mechanism can only include planetary gear reducing mechanism 31a, or only includes pinion gear mechanism 30a, or other the transmission mechanism that rotatablely moves, as ratchet mechanism, turbine mechanism etc.Wherein motor shaft 21 extensions are engaged with planetary gear reducing mechanism 31a, and planetary gear reducing mechanism 31a will rotatablely move and pass to pinion gear mechanism 30a, and pinion gear mechanism 30a drives output shaft 4a rotation again.When motor 2 moves like this, by planetary gear reducing mechanism 31a, pinion gear mechanism 30a, finally exported by output shaft 4a.This shows, driving-chain in present embodiment is motor-transmission mechanism-output shaft, be that connector is not as the part of driving-chain, certainly those skilled in the art can expect easily, driving-chain can be to be also motor-transmission mechanism-connector-output shaft, and connector is as a part for driving-chain.In addition, reducing gear is slowed down by third-level planetary and the two poles of the earth parallel axes deceleration system forms to obtain wanted output speed, in other embodiments, and 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, the length direction of storage folder 52a is parallel to the axial of output shaft 4a, the width of storage folder 52a has been set up in parallel two and has accommodated storehouse 521a, accommodate 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 is the axial restraint along output shaft 4a with respect to casing 1, connector 51a moves axially to drive with respect to casing 1 and is housed in one of them working head 9a accommodating in the 521a of storehouse and enters output shaft 4a, or connector 51a accommodates in the 521a of storehouse by being arranged on the magnet 511 of its front end and holding working head 9a and drive it to turn back to, the connector 51a being here only for releasing or retracting working head 9a, not as the part of driving-chain.Storage folder 52a is supported on casing 1 and is positioned at the top of transmission mechanism 3a, the planetary gear reducing mechanism 31a axial overlap in storage folder 52a and transmission mechanism 3a and with motor 2 part axial overlaps, can make like this complete machine compact, saving space.
On casing 1, be slidably connected with slip lid 53a, the edge of slip lid 53a is provided with guide rail 531, and corresponding casing 1 is provided with gathering sill (figure does not look), and slip lid 53a is arranged in gathering sill and can be slid axially with respect to casing 1 by its guide rail 531.Certainly, 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, in present embodiment, drives connector 51 to move axially by mobile slip lid 53a.
On the multifunction drill of present embodiment, be provided with the automatic switching control equipment of automatic switchover working head, that is to say as long as operation slip lid 53a drives connector 51a to leave and accommodate storehouse 521a, remove the restriction to storage folder 52a motion, storage folder 52a is moved to the next one in the effect of automatic switching control equipment and accommodates axially corresponding position of storehouse 521a and output shaft 4, without operator more manual mobile storage press from both sides 52a and select working head.
Fig. 1 is depicted as the first embodiment of the preferred direct current multifunction drill of the present invention to Figure 22.In present embodiment, automatic switching control equipment comprises the movement conversion mechanism being arranged between storage folder 52a and slip lid 53a, slip lid 53a Linear-moving drives storage folder 52a along being axially the direction translation of angle with output shaft 4a by movement conversion mechanism, the direction of preferred translation perpendicular to output shaft 4a axially.The movement conversion mechanism here comprises the chute 72c and the pivotally connected oscillating deck 79 at casing 1 upper cover 14 that are arranged on slip lid 53a, the two ends of oscillating deck 79 form two pins, wherein the first pin 791 is stuck in the square groove of storage folder 52b, and the second pin 792 is arranged in chute 72c and can in chute 72c, slides.Chute 72c has axially symmetrically arranged two straight flange 723c and the hypotenuse 724c that is connected with two straight flanges respectively along output shaft 4a, article two, formation oblique angle, hypotenuse 724c intersection portion, oblique angle portion is with respect to two straight flange 723c evaginations and towards motor 2, the middle part of chute 72c is provided with two baffle plates 725, baffle plate 725 is roughly parallel to straight flange 723c, distance between two baffle plates 725 is substantially equal to the diameter of the second pin 792, in the track that the second pin 792 can form between two baffle plates 725, move, distance between two straight flange 723c of two other baffle plate 725 and correspondence is also the diameter that is substantially equal to the second pin 792, in the track that the second pin 792 can form between baffle plate 725 and its corresponding straight flange 723c, move, chute 72c is divided into the first chute 701 and the second chute 702 by two baffle plates 725.Slip lid 53b head lamp brush guard pivot is connected with guide plate 74c, and guide plate 74c is positioned at the position of chute 72c away from hypotenuse 724c, and 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, be provided with stop column 75c, stop column 75c is positioned at the middle part of the double end end of Y type guide plate 74c, stop column 75c is fixed on slip lid 53b, guide plate 74c can be around the axis rotation perpendicular to chute 72c, the double end end of Y type guide plate 74c can be selected one conflict with stop column 75c like this, thereby guide plate 74c is stopped post 75c, restriction can only be rotated in certain scope, wherein in the time that guide plate 74c remains on the position contacting with stop column 75c, the single head end of guide plate 74c is less than the diameter of the second pin 792 to the distance of one of them baffle plate, be less than the diameter of the second pin 792 to the distance of another baffle plate, can guarantee like this can move according to definitive orbit in process that the second pin 792 slides in chute 72c.On stop column 75c, being provided with magnet or stop column itself is exactly magnetic column, and guide plate 74c is made up of permeability magnetic material, the double end end of guide plate 74c is whichsoever conflicted and all will be remained on the position contacting with stop column 75c, has guaranteed 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, namely operate slip lid 53b slides the second pin 792 in chute 72c, before storage folder 52a moves, need connector 51c and accommodate storehouse 521a and separate, and operation connector 51c moves and also moves axially realization by operation slip lid 53b, so just need to move axially and make connector 51c after storehouse 521a separates, operate again slip lid 53b and moved axially automatic switchover with accommodating by operation slip lid 53b, in order to prevent that connector 51c from continuing along with slip lid 53b moves, can after separating, storehouse 521a make slip lid 53b idle stroke slide with accommodating at connector 51c, be that slip lid 53b continues to move axially and the relative casing of connector 51c 1 is fixing, concrete implementation has a lot, engaging piece 55a is preferably set in present embodiment between slip lid 53b and pushing block 58a, pushing block 58a is connected on engaging piece 55a, engaging piece 55a is stuck in the stopper slot 539c being arranged on slip lid 53b, engaging piece 55a and slip lid 53b are located by connecting by elasticity vertically, engaging piece 55a can overcome resilient force and in stopper slot 539c, move until again located by elasticity, so just, realized another idle stroke of slip lid 53b.
Conventional screwdriver bit length is probably one inch 2.54 centimetres, the beeline that connector moves releases storage folder screwdriver bit, 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, 5 centimetres of above distances but if the mobile long efficiency that will affect operator of distance, especially operation are slided.In present embodiment, storage folder 52a accommodates screwdriver bit or the drill bit that length is grown, as the screwdriver bit of two inches, the length of storage folder 52a is longer like this, the distance that connector 51a need to be moved is also longer, when connector 51a with accommodate storehouse 521a and separate, slip lid 53a moves to the rear end of motor 2, can make like this length of complete machine very long, for this reason, in present embodiment, between slip lid 53a and connector 51a, stroke amplifying mechanism is set, slip lid 53a linear movement drives stroke amplifying mechanism to drive connector 51a motion, thereby 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 than distance that connector 51a moves and realizes connector 51a and accommodate storehouse and separate.
Shown in Fig. 3, in an embodiment provided by the invention, stroke amplifying mechanism can be also linkage 200, the second half connecting rods 202 that linkage comprises that one group of the first half connecting rod 201 that are connected with connector 51c pivot, a group are connected with casing 1 pivot 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 least one 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 pin 514 is stuck in the first pin-and-hole 513 through one end of the first half connecting rods 201, thereby between the first half connecting rods 201 and the first bearing pin 514, matched in clearance the first half connecting rods 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, repeats no more herein.Casing 1 comprises the upper cover 14 that is fixed on motor top, on cover and be provided with the second pin-and-hole 143, the second bearing pin 144 is stuck in the second pin-and-hole 143 through one end of the second half connecting rods 202, thereby between the second half connecting rods 202 and the second bearing pin 144, matched in clearance 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 at least two connecting rods 203 that arrange around same pivotal axis, in every group of half connecting rod, in the quantity of the half connecting rod connecting rod 203 arranged in a crossed manner with every group, the quantity of connecting rod equates, wherein one end of the connecting rod 203 in one group of connecting rod 203 arranged in a crossed manner is connected with the first half connecting rod 201 pivotables respectively, one end of 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 move axially and linkage is stretched and shrink along output shaft by the pivot of control link 203 infalls like this.In present embodiment, preferred every group of half connecting rod arranges three and half connecting rods, every group of same connecting rod 203 arranged in a crossed manner arranges three connecting rods, wherein there are two connecting rods to be parallel to each other and relatively fixing, another root connecting rod is arranged between two connecting rods, arranging three is intensity in order to increase linkage, not yielding while making it flexible.
The concrete structure of aforementioned link mechanism is the preferred embodiment of the present invention, those skilled in the art can be suitable according to the principle of linkage change, can reach equally identical effect as the first half connecting rods 201, the second half connecting rods 202 and connecting rod 203 arrange respectively two.Certainly, linkage also can all be made up of connecting rod 203, connecting rod 203 can be to be slidably connected with the connected mode of connector 51c and casing 1, can linkage be stretched and shrink by gathering with separating of control link 203 ends, 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 along output shaft 4a axially-movable with push-and-pull working head, therefore it is axial that the flexible direction of linkage should be parallel to output shaft 4a, the plane parallel that is to say linkage place is axial in output shaft 4a, for make between linkage and other elements coordinate compacter, linkage best level arranges, and the plane at linkage place is perpendicular to vertical direction, thus the volume that while having enough spaces to hold linkage in casing 1 to shrink, 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, it axially has certain length along output shaft 4a, the inside of pushing block 58a can be passed for linkage, the N-shaped two edges of pushing block 58a form locating piece 583, and locating piece 583 can be stuck in first gathering sill 147 of upper cover 142 of casing 1 so that pushing block 58a can be moved along the first gathering sill 147.The N-shaped top of pushing block 58a is axially provided with elongated slot 584 along output shaft 4a, elongated slot 584 is positioned at one end of pushing block 58a length direction, the other end of pushing block 582a length direction is provided with projection 585, makes slip lid 53b drive pushing block 58a to move thereby projection 585 can be connected in slip lid 53b.The pivotal point at two connecting rod 203 middle parts in linkage is provided with bayonet lock 204, bayonet lock 204 also can move along elongated slot 584 through elongated slot 584, the upper end of bayonet lock 204 is provided with locating flange 2041, the diameter of locating flange 2041 is greater than the width of elongated slot 584, locating flange 2041 can not pass elongated slot 584 like this, thereby bayonet lock 204 can be supported on pushing block 58a, between bayonet lock 204 and connecting rod 203, be arranged to along bayonet lock 204 axial restraints, be that connecting rod 203 axially cannot move along bayonet lock 204, thereby by bayonet lock 204, linkage is supported on pushing block 58a, guarantee that linkage 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 58a can directly be connected with slip lid 53b, also can indirectly be connected, as long as slip lid 53b can drive pushing block 58a motion then to drive connector 51c motion, or is arranged to the mode that slip lid 53b can directly be connected with bayonet lock 204.Pushing block 58a is set and only there is an idle stroke for slip lid 53b with respect to connector 51c, namely by bayonet lock 204, the interior motion of elongated slot 584 on pushing block 58a 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, slip lid 53b can drive connector 53c to move.Acting on below of idle stroke can be described in detail.
11 groups of connecting rods 203 arranged in a crossed manner are preferably set in linkage, 11 groups of connecting rods 203 arranged in a crossed manner and the first half connecting rods 201, the second half connecting rods 202 just form 12 groups of quadric chains, while being linkage stretching, extension, form 12 parallelogram, move 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 to be connected with the pivot at one group of connecting rod 203 middle part arranged in a crossed manner wherein, and the stroke of connector 53c can be exaggerated or dwindle with respect to the stroke of slip lid 53b like this.In present embodiment, the pushing block 58a connecting rod 203(arranged in a crossed manner with the 4th group calculates from the second bearing pin 144 places) middle part pivotable bayonet lock 204 be connected, 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, be that bayonet lock 204 has moved and makes the distance of four parallelogram compression, and connector 51c is along with the first bearing pin 514 moves, the first bearing pin 514 has moved and has made the distance of 12 parallelogram compressions with respect to the second bearing pin 144, slip lid 53b compares with the movement travel of connector 51c the idle stroke that is not counted in slip lid for 1:3(like this).So visible, by operating the pivotable bearing pin axially-movable at different connecting rod arranged in a crossed manner 203 middle parts, can realize the movement travel ratio that slip lid 53b is different from connector 51c, in present embodiment, the movement travel of slip lid 53b and connector 51c is compared at 1:12 between 1:1, can guarantee so compactness that each element connects, reliable, simultaneously linkage with accommodate storehouse 521a and can not interfere.Certainly those skilled in the art are easy to arrange according to above-mentioned principle other movement travel ratio, 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 can be subject to a reverse responsive to axial force like this, axial force passes to connector 51 just by working head 9, after meeting generation connector 51, move, 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 second gathering sill 128 parallel with the first gathering sill 147, lock dog 57 is provided with extension 571 towards the one side of output shaft 4a, extension 571 is stuck in the second gathering sill 128 and can slides along the second gathering sill 128.On lock dog 57, be provided with stopper slot 572, the width of stopper slot 572 and the linkage width in the time of extended configuration is roughly equal, the length of stopper slot 572 need guarantee to accommodate completely 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, linkage is stressed can produce the tendency of shrinking, linkage need to be in its width expansion, and stopper slot 572 limits the width motion of the second half connecting rods 202 towards linkage, therefore cannot producing, working head 9 moves axially.Because what stopper slot 572 was subject to is the expansionary force along the width of linkage, therefore lock dog 57 can not produce axial displacement because working head 9 axially compresses workpiece, so just can 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, need to change working head time, slip lid 53b is a mobile segment distance S first, pushing block 58a drives lock dog 57 also to move apart from S simultaneously, and bayonet lock 204 makes pushing block 58a in this segment distance can not drive bayonet lock 204 to move in the interior movement of elongated slot 584, the second half connecting rods 202 along with the movement of lock dog 57 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, so just remove the restriction that stopper slot 572 linkage are shunk, thereby connector 51c can be along with the contraction of linkage be to the direction motion away from output shaft 4a.Can be found out by above-mentioned, the idle stroke of slip lid 53b is the axial limiting in order to remove working head 9, thereby can realize replacing working head.In addition, on slip lid 53b, be fixedly installed lock pin 532, lock dog 57 and the axial butt of lock pin 532, changing after good berth head, slip lid 53b can drive lock dog 57 to move to the direction of output shaft 4a by lock pin 532, and lock dog 57 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 occurring along the swing on its width in the flexible process of linkage, 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, connector 53c is upper axially arranges the first slit 515 along output shaft 4a, the diameter of the width of the first slit 515 and connection rod set middle part pivotable bearing pin is roughly equal, the length of the first slit 515 need guarantee no matter linkage is in stretching or contraction state, and the pivotable bearing pin at least one connection rod set middle part 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 the second slit 146 on same straight line with the first slit 515, same, the diameter of the width of the second slit 146 and connection rod set middle part pivotable bearing pin is roughly equal, the length of the second slit 146 need guarantee no matter linkage is in stretching or contraction state, and the pivotable bearing pin at least one connection rod set middle part is stuck in the second slit 146.Like this, no matter linkage stretches or shrinks, the pivotable bearing pin at least two connection rod set middle parts is along the rectilinear motion at the first slit 515 and the second slit 146 places, determine a line at 2, linkage can only axially stretch or shrink along output shaft 4a, thereby has guaranteed 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 certainly will have friction with the inwall of accommodating storehouse 521a, will relatively require great effort by slip lid 53b operator link mechanism kinematic like this, for this reason, directive wheel 516 is set in present embodiment on connector 51c, directive wheel 516 can contact with the inwall of accommodating storehouse 521a, directive wheel 516 can rolling support in the first slit 515, and non-interference with the pivotable bearing pin at connection rod set middle part, make the designs simplification of connector 51c.Directive wheel 16 preferably arranges two, is vertically symmetricly set in connector 51c upper, makes the relatively balance of support of connector 51c.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, bracing or strutting arrangement can or separate with working head butt, and be against while rotating on workpiece when working head, the sliding friction between working head and connector 51c can be become to rolling friction by bracing or strutting arrangement.Concrete, bracing or strutting arrangement comprises support member 518 and rolling member 519, support member 518 is around rotatable being supported on connector 51c of axis of output shaft 4a, support member 518 arranges with respect to connector 51c axial restraint, magnet 511 can be arranged on support member 518, can not affect like this connector 51c drives working head 9 to get back to and accommodate storehouse 521a, rolling member 519 is arranged between support member 518 and connector 51c, axial force when working head 9 rotates while being used for carrying electric drill work, thereby the frictional force effect that support member 518 is subject to working head 9 while rotating can be rotated along with working head 9, it between support member 518 and connector 51c, is the contact of rolling, reduce the friction between support member 518 and connector 51c, and working head 9 separates by support member 518 with connector 51c, prevent that working head 9 or connector 51c from damaging because of friction, thereby increase the service life of 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 5191 be set in addition, both the wearing and tearing of support member and connector had been prevented, can change in time depending on the degree of wear of wear-resistant gasket 5191, reduce use cost simultaneously.In addition, bracing or strutting arrangement also can comprise end face bearing (also claiming plane bearing), working head and end face bearing butt, or rolling member 519 is rotatable is arranged on connector, and working head and rolling member 519 butts, can realize rolling support like this.
With reference to Figure 24, to Figure 31, in second embodiment provided by the invention, stroke amplifying mechanism is preferably movable pulley mechanism, is the principle of resistance arm twice according to movable pulley mechanism medium power arm, and the stroke of connector is exaggerated.Concrete, between slip lid 53b and connector 51d, movable pulley 210 is set, movable pulley 210 can be used as the actuator that slip lid 53b drives connector 51d to move, 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 release connector 51d moves through other modes and realizes, as button release, can between pushing block 58b and slip lid 53b, idle stroke be set, can directly drive movable pulley 210 to move linearly by slip lid in other words.On movable pulley 210, walk around two sections of flexible cables, 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 on casing 1, the other end is fixed on the rear portion of connector 51d away from output shaft 4a, preferably end, can realize the shortest setting of connector 51d, thereby instrument entirety is compacter.Fixed form can be screw in compression, through the hole knotting on casing 1 or connector 51d etc., first paragraph flexible cable 211 self-retainings one end on connector 51d is with counterclockwise on movable pulley 210, here be less than 360 degree around referring to flexible cable with contacting of movable pulley 210, when slip lid 53b drives movable pulley 210 in the time that the direction of output shaft 4a is moved, movable pulley 210 drives the direction motion of connector 51d to output shaft 4a by first paragraph flexible cable 211, and the straight-line distance of connector 51d is the twice of movable pulley 210 straight-line distances.One end of second segment flexible cable 212 is fixed on casing, the other end is fixed on connector 51d closes on the front portion of output shaft 4a, preferably second segment flexible cable 212 be fixed on one end on connector 51d connector 51d length 1/4th to 1/2nd between, because, at multifunction drill during in operating position, movable pulley 210 is positioned at connector 51d one end away from output shaft 4a, 210, movable pulley needs the distance of mobile link part 51d length half, connector 51d just can move the distance of its whole length, therefore second segment flexible cable 212 is without the end that is fixed on connector 51d and closes on output shaft 4a, so just can save the length of flexible cable, thereby reduce cost.Second segment flexible cable self-retaining one end on connector 51d is walked around movable pulley 210 in a clockwise direction, in the time that slip lid 53b drives movable pulley 210 to move to the direction away from output shaft 4a, movable pulley 210 drives the connector 51d direction motion of output shaft 4a dorsad by second segment flexible cable 212, and 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 pushing block 58b to move backward by engaging piece 55a after idle stroke, pushing block 58b drives also motion backward of movable pulley 210, 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, accommodate storehouse 521a and exit and accommodate storehouse 521a until connector 51d drives working head 9b to get back to, as the position of Figure 26, now connector 51d is limited cannot continue to retreat, continuing operation slip lid 53b moves backward, by second idle stroke between slip lid 53b and engaging piece 55a, storage 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, position as shown in figure 27, move forward slip lid 53b, slip lid 53b drives pushing block 58b to travel forward by engaging piece 55a after idle stroke, 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 is along with the moving belt of the movable pulley 210 part 51d that is dynamically connected moves forward, until connector 51d advances the working head 9a accommodating in the 521a of storehouse output shaft 4a and exposes from the front end of output shaft 4a, as the position of Figure 24.The structural principle of automatic switching control equipment is identical with the first embodiment, is 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 of flexible cable simple, two sections of flexible cables can form without the flexible cable disconnecting by one, flexible cable is according to different first paragraph flexible cable 211a and the second segment flexible cable 212a of being divided in position that connect from connector 51d, the end that the two ends of flexible cable connect connector 51d is 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 the rear portion of connector 51d and walks around in the counterclockwise direction movable pulley 210, one end that flexible cable is provided with a die casting 215a is connected to the anterior of connector and walks around along clockwise direction movable pulley 210, the middle part of flexible cable is walked around in the counterclockwise direction the fixture 2101 being arranged on casing 1 and is wrapped on the steady pin 2102 being arranged on casing 1, the winding here refers to that flexible cable is greater than 360 degree with contacting of steady pin 2102, preferably 720 degree, be wound around two circles, so both can realize the self-locking of flexible cable, and can adjust easily the length of the flexible cable of movable pulley 210 both sides.Steady pin 2102 and a die casting 215b are positioned at a side of movable pulley 210 with respect to vertical direction, 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 the two ends that flexible cable is provided with a die casting 215a, 215b all have corresponding canned paragraph, thereby the stroke that can realize on both direction amplify.
What the stroke that movable pulley mechanism is realized amplified utilization is the folding of flexible cable, no matter that is to say whether movable pulley 210 can rotate can realize stroke and amplify, certainly in order to reduce the friction between flexible cable and movable pulley 210, movable pulley 210 is rotatable to be arranged on pushing block 58b, friction between flexible cable and movable pulley 210 is rolling friction, can increase like this service life of flexible cable.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 two, arranges along the direction interval of the rotation of movable pulley 210, and two raceways can hold respectively first paragraph flexible cable 211,211a and second segment flexible cable 212,212a.
Because of assembly precision, the existence of the factors such as 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, strainer be set, strainer is used for flexible cable with respect to movable pulley 210 tensionings, concrete, can between connector 51d and the end of flexible cable, flexible member 214 be set, flexible member 214 is given a die casting 215a, 215b and connector 51d apply the power of flexible cable with respect to movable pulley 210 tensionings that makes, flexible cable just can be always in tensioning state like this.Can certainly flexible member be set in one end of flexible cable connection fixture 2101 or steady pin 2102, make stiff end with respect to movable pulley 210 tensionings.Present embodiment Elastic element 214 is preferably stage clip, and stage clip is arranged between connector 51d and die casting 215.Certainly, flexible member 214 can be also other modes, as torsion spring, shell fragment etc.
In addition, in order further to eliminate the impact of assembly precision, foozle, the adjustment screw 213 that flexible cable can be passed can be set on connector 51d, adjustment screw 213 can move to regulate a die casting 215a, the 215b of flexible cable end with respect to the position of connector 51d with respect to connector 51d, then adjusts the use length of flexible cable.In order to save space, a die casting 215a can be stuck in an adjustment block 216, adjustment screw 218 is connected with adjustment block 216, a screw 217 being fixed on connector 51d limits adjustment block 216 to be merely able to move within the specific limits, adjustment screw 218 regulates the position of adjustment block 216 on connector 51d by the mode screwing in various degree, thereby regulate a die casting 215a of flexible cable with respect to the position of connector, can realize too the use length of adjusting flexible cable.
In order to make the structure of multifunction drill compacter, can make the rotation of movable pulley 210 vertical with output shaft 4a axis, and it is more laborsaving to make to operate slip lid 51b.Movable pulley 210 can be also with respect to the irrotational setting of slip lid 53b, 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, the movement travel that those skilled in the art can realize by setting up the mode of movable pulley or fixed pulley connector 51d is the natural several times that are more than or equal to 2 times of the movement travel of movable pulley 210.
To the quick-replaceable process of middle working head to the preferred direct current multifunction drill of the present invention be elaborated as an example of the first embodiment example below.
Fig. 1 and Fig. 3, direct current multifunction drill shown in Fig. 4 is in running order, with reference to Fig. 5 to shown in Fig. 7, in the time need to changing the working head 9b of another type, operation slip lid 53b is along diagram arrow M direction displacement S, slip lid 53a drives pushing block 58a to move by engaging piece 55a, bayonet lock 204 is along with the movement of pushing block 58a and the front side butt of elongated slot 584, pushing block 58a drives lock dog 57 also to move apart from S, the second half connecting rods 202 separate with the stopper slot 572 on lock dog 57 with the pivotable connecting portion of connecting rod 203 arranged in a crossed manner, thereby remove the restriction that linkage is shunk, the second pin 792 of oscillating deck 79 is along with the slip of slip lid 53b moves to the position shown in Fig. 8 in chute 53c.
With reference to Fig. 8 to shown in Figure 10, continue to move along the direction operation slip lid 53b of diagram arrow M, slip lid 53b continues to drive pushing block 58a to move by engaging piece 55a, pushing block 58a shrinks until linkage is contracted in together completely by bayonet lock 204 drivening rod mechanisms, connector 51c is positioned at output shaft 4a working head 9a along with the contraction of linkage drives moves to and accommodates storehouse 521a, connector 51c with accommodate storehouse 521a and separate, the second pin 792 of oscillating deck 79 is along with the slip of slip lid 53b moves to the position of closing on the single head end of guide plate 74c in chute 72c, position as shown in figure 11.
With reference to Figure 11 to shown in Figure 13, continue to move along the direction operation slip lid 53b of diagram arrow M, the resilient force that overcomes engaging piece 55a moves in stopper slot 539c until the front side butt of engaging piece 55a and stopper slot 539c being located by elasticity again, 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 make 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 in guide plate 74c, the second pin 792 is along with the rotation of guide plate 74c is along the border movement of guide plate 74c, the second pin 792 produces the motion perpendicular to slip lid 53b moving direction, make oscillating deck 79 around its pivot rotation, the first pin 791 drives storage folder 52a to move to another and accommodates 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 Figure 14 to shown in Figure 16, direction operation slip lid 53b along diagram arrow N resets, slip lid 53b drives pushing block 58a to move by engaging piece 55a, bayonet lock 204 is along with the movement of pushing block 58a and the rear side butt of elongated slot 584, and the second pin 792 moves to the position shown in Figure 17 along with slip lid 53b moves along the straight flange 723c of chute 72c.
With reference to Figure 17 to shown in Figure 19, continue to reset along the direction operation slip lid 53b of diagram arrow N, slip lid 53b drives pushing block 58a to move by engaging piece 55a, pushing block 58a drives bayonet lock 204 that linkage is stretched, connector 51c enters another and accommodates storehouse 521a and drive the working head 9b in it to enter output shaft 4a, and the second pin 792 moves to the position shown in Figure 20 along with slip lid 53b moves along the straight flange 723c of chute 72c.
With reference to Figure 20 to shown in Figure 22, continue to move along the direction operation slip lid 53b of diagram arrow N, the resilient force that overcomes engaging piece 55a moves in stopper slot 539c until the rear side butt of engaging piece 55a and stopper slot 539c being located by rear side elasticity, lock pin 532 and the axial butt of lock dog 57 on slip lid 53b, and slip lid 53b drives 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 and linkage 200 partially overlap.The second pin 792 of oscillating deck 79 slides along the hypotenuse 724c of chute 72c, the second pin 792 produces the motion perpendicular to slip lid 53 moving directions, make oscillating deck around its pivot rotation, and now store double-layered quilt connector and linkage is spacing cannot move, in the square groove of the first 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 72b moves in circles, in the track that the second pin can form from two baffle plates, move to the first chute 701, thereby then in the track forming from two baffle plates, 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, and those of ordinary skill in the art can know simply and replace it.As motor can carry out instead of electr ic motor with gasoline engine or diesel engine etc.; 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 storage folder can either also can move radially in axially-movable, and connector can be also and coaxial setting of motor shaft etc.In addition, to its structure and have no special requirements, visual different interior carrys out corresponding change configuration, can increase new element, also can reduce 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, 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;
It is characterized in that: 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.
2. hand-held tool as claimed in claim 1, is characterized in that: between described casing and connector, be also connected with flexible piece, described actuator makes connector rectilinear motion by described flexible piece.
3. hand-held tool as claimed in claim 1, is characterized in that: described connector has and closes on the anterior of output shaft and the rear portion away from output shaft, and one end of described flexible piece 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 to the anterior of connector and can drives connector output shaft motion dorsad.
4. hand-held tool as claimed in claim 3, it is characterized in that: described flexible piece at least comprises two sections of flexible cables, wherein one end of first paragraph flexible cable is connected to the rear portion of connector and walks around described actuator along first direction, the other end of described first paragraph flexible cable is fixed on casing, wherein one end of second segment flexible cable is connected to the anterior also along walking around in the opposite direction described actuator with first party of connector, and the other end of described second segment flexible cable is fixed on casing.
5. hand-held tool as claimed in claim 3, it is characterized in that: described flexible piece at least comprises one section of flexible cable, one end of described flexible cable is connected to the rear portion of connector and walks around described actuator along first direction, the described other end is connected to the anterior and edge of connector and walks around in the opposite direction described actuator with first party, the middle part of described flexible cable is walked around on the fixture being arranged on casing and is wrapped on the steady pin being arranged on casing along first direction, one end of described steady pin and described flexible cable is positioned at a side of described actuator with respect to vertical direction, the other end of described fixture and described flexible cable is positioned at the opposite side of described actuator with respect to vertical direction.
6. hand-held tool as claimed in claim 3, is characterized in that: one end that described flexible piece is connected to connector front portion connector 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, and the position of described 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, along arranging perpendicular to interval in the axial direction of output shaft.
9. hand-held tool as claimed in claim 3, is characterized in that: between described flexible piece and connector, be provided with strainer, described strainer is used for described flexible piece with respect to actuator tensioning.
10. hand-held tool as claimed in claim 3, is characterized in that: described strainer comprises flexible member, and described flexible member 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 regulating part, 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, it is characterized in that: the front portion of described connector is provided with adjustment block, described adjustment block can move with respect to connector, the other end of described flexible piece is stuck in described adjustment block, described regulating part is arranged between adjustment block and connector, and described regulating part is by regulating described adjustment block then to regulate the position of described flexible piece with respect to connector with respect to the position of connector.
13. hand-held tools as claimed in claim 1, is characterized in that: described actuator has the rotation axial perpendicular to output shaft, and 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.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210488616.9A CN103831796B (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 |
| EP16194524.1A EP3141351B1 (en) | 2012-01-13 | 2013-01-14 | 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 |
| 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 |
|---|---|---|---|
| CN201210488616.9A CN103831796B (en) | 2012-11-26 | 2012-11-26 | Hand-held tool |
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| Publication Number | Publication Date |
|---|---|
| CN103831796A true CN103831796A (en) | 2014-06-04 |
| CN103831796B CN103831796B (en) | 2016-05-18 |
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| CN201210488616.9A Active CN103831796B (en) | 2012-01-13 | 2012-11-26 | Hand-held tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863933A (en) * | 2020-11-20 | 2021-05-28 | 中国南方电网有限责任公司超高压输电公司广州局 | GIS equipment switch earthing switch operating means |
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| US2679770A (en) * | 1953-07-16 | 1954-06-01 | North American Aviation Inc | Tool selective device |
| US5673600A (en) * | 1995-03-29 | 1997-10-07 | Nec Corporation | Screwdriver having plural kinds of driver pins |
| WO2000029173A1 (en) * | 1998-11-14 | 2000-05-25 | Michael Burvill | Power tool |
| CN101563192A (en) * | 2006-12-18 | 2009-10-21 | 罗伯特·博世有限公司 | Motor-driven machine tool |
| CN101683734A (en) * | 2008-09-26 | 2010-03-31 | 叶世祯 | Power tool with slidable storage device |
| CN102596511A (en) * | 2009-10-08 | 2012-07-18 | 朴相哲 | Adjustable length adapter and multi-device with the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112863933A (en) * | 2020-11-20 | 2021-05-28 | 中国南方电网有限责任公司超高压输电公司广州局 | GIS equipment switch earthing switch operating means |
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| CN103831796B (en) | 2016-05-18 |
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