CN105983733A - Hand-held power tool - Google Patents

Abstract

The invention provides a hand-held power tool. The hand-held power tool comprises a shell, a handle, a trigger, a motor, an output shaft and a work assembly. The work assembly comprises at least two work chucks including working shafts. The work assembly is movably connected to the shell such that every one of the at least two work chucks can shift between the working position and the non-working position. One of the at least two work chucks is in the working position. The working shafts of the work chucks are connected with the output shaft in a matching mode. The rest of the at least two work chucks is in the non-working position. Working shafts of the rest of work chucks and the output shaft are arranged at angles. The shell comprises a main shell extending lengthways. The work assembly is connected to one end of the main shell. The motor is arranged at the other end, away from the work assembly, of the main shell. The handle and the main shell are arranged at a certain angle. One end, away from the main shell, of the handle is provided with a battery pack. The center of gravity of the hand-held power tool is located at the holding part of the handle.

Description

Hand-hold power tool

Technical field

The present invention relates to a kind of hand-hold power tool, particularly relate to one and there is at least two mounting working chuck Hand-hold power tool.

Background technology

Hand-hold power tool such as electric drill, for holing workpiece such as plank etc., it utilizes Work head is drill bit；Such as screwdriver, can be used for tightening or unscrewing screw, and its work head utilized is spiral shell Silk screwdriver bit.The main shaft of this type of hand-hold power tool is usually mounted with a mounting working chuck, is used for clamping work A class work head required for being used as, such work head can have different size.When needs are replaced work When head carries out other work, need first to dismantle down original work head, replace with different work heads. The process of this work head replacement operation is the most loaded down with trivial details.

At present, market occurs in that some rifle drill kind tools with double mounting working chucks, the most permissible Select between two kinds of mounting working chucks or change use.Prior art use three-pawl type chuck be used for clamping Drill bit, this mounting working chuck uses metal to make, and structure is complicated, and therefore weight is big；And another filing appliance Head is used for clamping screwdriver bit, needs moment of torsion to regulate, generally at machine when screwdriver bit performs and twists screw work Body is provided with mechanical control mechanism for realizing moment of torsion regulation near the outfan of output shaft, when these construct When the functional part complicated, weight is big is applied on the drill gun instrument of this pair of mounting working chuck, make the weight of complete machine , still there is one section of horizontal range heart deflection mounting working chuck side between center of gravity and handle grip portion, so that behaviour Author's its wrist in performing operating process bears torque, easily produces fatigue.

It addition, mounting working chuck needed joining between mounting working chuck to be released and output shaft before dislocation Connect or the locking of mounting working chuck and housing, in prior art, release this operating parts connecting and locking remote Arranging from handle, therefore operator cannot utilize the hands by compressing switch to operate, it is necessary to utilizes another Hands operates this operating parts, generally this operating parts to be needed to keep push action, only changes to mounting working chuck position Completing, this is for needing manually to be operated the instrument that clip position is changed, and operator must be with former The hands of this gripping handle has removed switching motion, so, operator can the most hand-off operation, operate pole Inconvenience, for particular job place, such as high-altitude, such operation is the most dangerous.

Summary of the invention

For solving the technical problem of above technology, the present invention provides a kind of rapid operation, handling good hands Hold formula power tool.

The present invention is achieved in that a kind of hand-hold power tool includes: housing, including longitudinal extension Main casing and the handle of setting angled with main casing；Motor, is arranged in described main casing；Output shaft, Driven by motor and rotate；Work package, including at least two mounting working chuck；Switch, is arranged at described hands Handle, is used for controlling motor；At least two mounting working chuck includes working shaft respectively, and work package is flexibly connected In main casing one end, thus each mounting working chuck in described at least two mounting working chuck can be at working position Put between off-position change, at least two mounting working chuck one of them be in operating position, this work The working shaft making chuck axially connects with output shaft, and at least two mounting working chuck, remaining mounting working chuck is in Off-position, the working shaft of this remaining mounting working chuck and the angled setting of output shaft；Motor is away from work Assembly is arranged, and hand-hold power tool also includes that battery bag, battery bag are connected to handle and away from main casing Arranging, the center of gravity of hand-hold power tool is positioned at the grip part of handle.

Preferably, working shaft is provided with the hexagon accepting hole for connecting work head.

Preferably, the axis co-planar of working shaft is arranged.Angled setting between the axis of working shaft, described angle Degree is in the range of 60 degree to 130 degree.

Preferably, work package pivots relative to housing and arranges, the pivot axis of work package and output shaft axis Coplanar and angled setting.At least two mounting working chuck fixes connection and the pivot relative to work package Axisymmetrical is arranged.

Preferably, hand-hold power tool also includes the control machine locked by work package relative to shell position Structure, controlling organization includes the control piece of neighbouring described switch, and control piece operationally releases work package Position locking and control output shaft disengage with one of working shaft and connect.Control piece moves setting relative to housing, Control piece is along moving the position locking realizing releasing work package away from work package direction and controlling output shaft Disengage with one of working shaft and connect.The moving direction of control piece is parallel to output shaft.

Preferably, controlling organization also includes the locking piece arranged with control piece linkage, and elastic with control piece The elastic component abutted, described elastic component provides control piece to drive the elastic force that locking piece moves near working group, Described locking piece selectively disengages with work package or connects.Hand-hold power tool also includes and locking The arrangement of clutch that part linkage is arranged, described arrangement of clutch one end is coupled to output shaft movably, and the other end can Selectively disengage with one of working shaft or connect.

Preferably, being provided with the prompting mechanism that puts in place between work package and housing, the prompting mechanism that puts in place has to be nibbled Conjunction state and released state, during engagement, one of them arrival operating position of at least two mounting working chuck, During released state, at least two mounting working chuck leaves operating position.The prompting mechanism that puts in place includes being arranged at shell The alignment pin of body and work package one of both, is arranged at another determine of housing and work package Position groove, and the elastic component abutted with alignment pin, alignment pin selectively connects with described locating slot or de- Open.

Preferably, hand-hold power tool also includes that electronic torque controls device, for operationally regulate to The output moment of torsion of a few working shaft.

Preferably, main casing includes the main part for housing reduction box, and the front end near work package Portion, the distance of main casing longitudinal axis to top, leading section is less than the distance to main part top.At least two Mounting working chuck one of them when being in operating position, the distance of main casing longitudinal axis to this mounting working chuck top Less than the distance to top, leading section.

Owing to the center of gravity of hand-hold power tool is positioned at the grip part of handle so that user is wrist when operation Will not distribute irregular due to instrument weight and produce torque, thus rapid operation.Control piece proximity switches and Housing relatively is movably arranged, and control piece edge is moved away from work package direction and can be realized releasing work The position locking of assembly, can control again output shaft and connect with the disengagement of one of working shaft, therefore, and control piece one Key operation realizes two actions, easy to operate；And the operation of control piece is consistent with switch moving direction, patch Close the operating habit of user, made the manipulation of hand-hold power tool make, operated the most safer.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings the present invention is done further detailed description.

Fig. 1 is the front view of embodiments of the invention hand-hold power tool.

Fig. 2 is the main apparent direction sectional view of hand-hold power tool shown in Fig. 1.

Fig. 3 is the perspective exploded view of hand-hold power tool shown in Fig. 1.

Fig. 4 is the cross-sectional schematic in A-A direction along Fig. 2.

Fig. 5 is the perspective exploded view of Fig. 3 middle rack device.

Fig. 6 is the partial schematic sectional view of the main apparent direction of hand-hold power tool shown in Fig. 1.

Fig. 7 to Fig. 9 is the section view that in Fig. 6, hand-hold power tool control piece moves to state each during diverse location Schematic diagram.

Figure 10 is the cross-sectional schematic in B-B direction along Fig. 2.

Figure 11 is the cross-sectional schematic in C-C direction along Fig. 2.

Figure 12 is the front view of second embodiment of the invention hand-hold power tool.

Figure 13 is the schematic front view that in Figure 12, hand-hold power tool shows internal structure after removing half-shell.

Figure 14 is the cross-sectional schematic of the main apparent direction of hand-hold power tool shown in Figure 12.

Figure 15 is the three-dimensional exploded view of hand-hold power tool in Figure 12.

Figure 16 is the vertical signal of the solid of sliding assembly in Figure 15.

Figure 17 is the structural representation after sliding sleeve is open and flat in Figure 16.

Figure 18 to Figure 22 is that second embodiment of the invention hand-hold power tool control piece moves to diverse location View.

Figure 23 is the schematic perspective view of third embodiment of the invention hand-hold power tool.

Figure 24 is the front view after hand-hold power tool removes work head in Figure 23.

Figure 25 is the partial left side view of hand-hold power tool in Figure 24.

Figure 26 is the main apparent direction cut-away view of hand-hold power tool in Figure 23.

Figure 27 is the perspective exploded view after hand-hold power tool removes housing in Figure 23.

Figure 28 is the top view after hand-hold power tool removes housing in Figure 23, and now control piece is in locking Position.

Figure 29 is the sectional view in D1-D1 direction in Figure 28.

Figure 30 is the sectional view in E1-E1 direction in Figure 28.

Figure 31 is the top view after hand-hold power tool removes housing in Figure 23, and now control piece is in unblock Position.

Figure 32 is the sectional view in D2-D2 direction in Figure 31.

Figure 33 is the sectional view in E2-E2 direction in Figure 31.

In figure:

100-hand-hold power tool 2540-Y shape groove 318-control knob

10-housing 2541-straight-line groove 319-groove

10a-half-shell 2542,2543-oblique trunking 320-work light

12-main casing 2550-Y shape groove 32-reduction box

14-handle 2551-straight-line groove 32a-supporting surface

18-battery bag 2552,2553-oblique trunking 330-controlling organization

18a-battery pack housing 18a 256-collar 34-rack gear arrangement

2-commutates trigger 26-mounting disc 35-clamp hook piece

200-hand-hold power tool 26b-locked groove 35a-hook part

20,20 ' ,-work package 260-tumbler 36-tooth bar

202-commutates trigger 263-gear part 36a-tooth bar notch

204-switchs 264-support set 36b-tooth bar sidewall

206-output shaft 265-positioning bar 36c-perforate

206a-slotted eye 266-looping pit 36d-notch end wall

206b-key tooth 267-sells 37-clamp hook piece

2061-the first axle 268-positions bearing 37a-hook part

2061a-protruding shaft portion 27-shackle member 38-pivot

2061b-connecting portion 28-connector 39-torsion spring

2062-the second axle 28a-main component 4-switchs

2062a-protruding shaft portion 29-stage clip 40-control piece

2062-connecting portion 30-actuating device 41-drives arm

2062c-cannelure 300-power tool 42-groove

208-motor 301-control piece 44-translot portion

210-housing 301a-unlocking knob 46a, 46b-chute portion

210a-half-shell 301b-connects post 50-cam

212-main casing 302-elastic component 51-screw

213-annular guide channel 303-locking piece 52-connecting pin

214-handle 304-side plate 53-lead

218-battery bag 304a-accepting groove 54-connecting pin

22-mounting working chuck 304b-draw-in groove 6-output shaft

220-drill bit 305-connector 60-Passive part

22a-working shaft 306-side arm 62-connecting hole

230-actuating device 307-clutch cover 64-opening

232-reduction box 308-back-moving spring 70-gear assembly

24-mounting working chuck 309-alignment pin 71-connecting shaft

24a-working shaft 310-casing 72-gear wheel

24b-accepting hole 311-elastic component 8-motor

240-screwdriver bit 312-main casing 80-transmission component

250-control piece 313-guide plate 82-travelling gear

251-connecting portion 315-lead 84-transmission arm

252-sleeve 316-output shaft

254-direction recess 317-panel

Detailed description of the invention

Referring to figs. 1 through shown in Fig. 3, hand-hold power tool 100 of the present invention is provided with housing 10, its mesochite Body 10 is connected by two Hafu-type half-shell 10a and forms.Dynamical system, including being contained in housing 10 Motor 8, the motor 8 of the present embodiment uses electro-motor, it is also possible to other type of motor, such as gas Dynamic motor, fuel oil motor etc. substitute.Housing 10 include house motor 8 main casing 12, and with master The handle 14 that housing 12 connects, main casing 12 is extendable in the longitudinal direction, handle 14 and main casing 12 in Angle is arranged.The main casing 12 of multifunction drill 100 setting substantially vertical with handle 14 in the present embodiment. On handle 14, one end away from motor 8 arranges promising motor 8 provides the energy unit of energy, the present embodiment In energy unit use battery bag 18, battery bag 18 is detachably connected with handle 14, battery Bag 18 includes multiple Rechargeable battery being contained in battery pack housing 18a, and battery preferably employs lithium battery. It is provided with the switch 4 for manually controlling motor 8 and commutation trigger 2 near main casing 12 on handle 14. The motor 8 of the present embodiment can also select to be arranged at handle 14.

The output shaft 6 being driven rotation by motor 8, in the present embodiment, output shaft axle are set in main casing 12 Line X1 is along main casing 12 longitudinal extension, and output shaft axis X 1 overlaps with motor axis；Can at other In the scheme selected, output axis X1 can parallel or angled setting with motor axis.Output shaft 6 And being provided with the actuating device 30 for slowing down between motor 8, speed reduction gearing 30 is contained in deceleration In case 32；In the present embodiment, speed reduction gearing 30 is gear mechanism, it is preferred to use planetary wheeling mechanism.

Hand-hold power tool 100 includes the work package 20 being movably connected on housing 10；The present embodiment In, work package 20 is positioned on main casing 12 away from motor 8 one end, the relative main casing of work package 20 12 pivot setting, wherein angled between pivot axis Y1 and the output shaft axis X 1 of work package 20 α is arranged, and pivot axis Y1 is in co-planar consistently with output shaft axis X 1.Wherein this angle Degree α is acute angle, and angular range is arranged between 30 degree and 65 degree, it is preferred to use angle c be 45 degree to 65 degree.Work package 20 includes two mounting working chucks 22,24, mounting working chuck 22 and work The fixing both sides connected and be symmetrically disposed on pivotal axis Y1 of chuck 24, mounting working chuck 22,24 Being respectively arranged with working shaft 22a, 24a, between the axis of working shaft 22a, 24a, angled β is arranged, This angle beta is 2 times of angle [alpha].When one of mounting working chuck 22,24 is in operating position, working shaft 22a, 24a axis and pivot axis Y1, output shaft axis X 1 are in same plane.Working shaft 22a, 24a one end selectively connects with output shaft 6, and the other end is used for connecting work head.Work package 20 is such as This is arranged when its relative housing 10 is pivoted, mounting working chuck 22 and at least one in mounting working chuck 24 Mounting working chuck can turn to the position making its working shaft connect with output shaft 6, thus is driven by output shaft 6 The working shaft of mounting working chuck rotates.In the present embodiment work package 20 around pivot axis Y1 relative to housing 10 Make reciprocating rotation, cause the working shaft of mounting working chuck 22 and mounting working chuck 24 selectively or by turns Connect with output shaft 6, so that output shaft 6 alternatively drives the work being held on mounting working chuck 22,24 Head carries out rotary work.

Mounting working chuck 22 and mounting working chuck 24 one of them be arranged for clamping drill bit 220, another Mounting working chuck can be designed according to actual needs, such as, can be arranged for clamping screwdriver bit, also Could be for clamping the small abrasive nose etc. for sand milling.In another kind of selectable scheme, mounting working chuck 22 One of them is arranged for clamping screwdriver bit 240 with mounting working chuck 24, and another mounting working chuck can basis Actual target is designed.In the present embodiment, mounting working chuck 22 is used for clamping drill bit 220, work Make chuck 24 for clamping screwdriver bit 240.

Multifunction drill 100 includes the movable control piece 40 arranged of relative housing 10, and is arranged at control Power train between product 40 and work package 20, by power train, the motion of control piece 40 is operable Ground drives two mounting working chucks 22,24 to realize between operating position and collecting position and exchanges, say, that The motion of control piece 40 operationally makes output shaft 6 connect with mounting working chuck 22,24 selectivity.Control Part 40 is arranged at the outside of main casing 12, the control piece 40 of the present embodiment can housing 10 relatively along output Axle axially moves linearly, and is operationally displaced into the top of main casing 12 with the form of slip lid, available In covering the cassette mechanism structure being at least partially disposed at housing 10.Certainly, those skilled in the art can will control Part can be configured as other forms such as operating knob.

Power train includes the first drive mechanism and the second drive mechanism, and the linear movement of control piece 40 is passed through First drive mechanism is operatively controlled one of mounting working chuck 22,24 to carry out connecting or dividing with output shaft 6 From, meanwhile, it is relative that the linear movement of control piece is operatively controlled work package by the second drive mechanism Housing 10 pivots.

First drive mechanism carry out connecting for alternatively controlling mounting working chuck 22,24 and output shaft 6 or Separating, the second drive mechanism is used for controlling work package 20 and rotates relative to housing 10.

First drive mechanism includes the actuator 50 being driven rotation by control piece 40, actuator drive Passive part 60, Passive part 60 connector 28 driven, connector 28 one end is connected with output shaft 6, The other end selectively connects with one of mounting working chuck 22,24 or disengages, say, that connector 28 one end are connected with output shaft 6, the other end selectively connect with working shaft one of 22a, 24a or Disengage.

With reference to shown in Fig. 3, control piece 40 is provided with the first drive division, actuator 50 is provided with The driving section that first drive division connects.First drive division is the groove 42 being arranged at control piece 40 inner surface (with reference to Fig. 4), actuator 50 can be fixed pivot axis around one and rotate forward or backwards, actuator 50 Between control piece 40 and reduction box 32, the actuator of the present embodiment uses cam 50, cam 50 to lead to Crossing in the lead 53 being arranged at reduction box 32 that screw 51 rotates, cam 50 is with in lead 53 Heart line is as pivot axis.Wherein driving section is to be arranged on cam 50 the first end near control piece 40 The first connecting pin 52 on face, the first connecting pin 52 engages with groove 42 and connects, with on cam 50 The second end face that end face is relative is provided with connecting pin 54, and connecting pin 54 is with connecting pin 52 in opposite direction Extend.

Passive part 60 is arranged between reduction box 32 and main casing 12, near cam 50 on Passive part 60 One end be provided with the first connecting portion connected with connecting pin 54, this first connection part structure become receive connect The form of the connecting hole 62 that pin 54 inserts.The second connecting portion it is provided with, this second connection on Passive part 60 Cage structure becomes the form of draw-in groove 64.By connecting pin 54, the rotary motion of actuator can be converted to passively Part is along the movement being parallel to output shaft axis.It is the most remote along output shaft that actuator rotates forward driving Passive part Moving from work package 20, actuator rotates backward driving Passive part along output shaft axially adjacent to work package 20 motions.

Connector 28 is arranged between work package 20 and output shaft 6, and axially can move along output shaft 6 Dynamic, connector includes main part 28a and is coupled to the Access Division 27 of main part 28a, main part 28a Connect with output shaft 6 one end sliding with the form of sleeve pipe, the other end with can alternatively with mounting working chuck 22, Working shaft 22a, 24a of 24 connect.The periphery of main part 28a is provided with elastic component, the present embodiment Elastic component uses stage clip 29；Access Division 27 is connected on main part 28a use near one end of output shaft 6 In connecting with Passive part 60 draw-in groove 64, Access Division 27 is socketed on the peripheral surface of main part 28a movably On, main part 28a end arranges collar (not shown) for spacing, can be limited Access Division 27 It is unlikely to depart from main part 28a on main part 28a；When main part 28a is in initial position, card Meet portion 27 and be connected to collar under the effect of elastic component 29.

With reference to shown in Fig. 2, Fig. 4, the groove 42 of control piece 40 medial surface, connecting pin 52 is slippingly It is engaged in groove 42.The groove 42 of the present embodiment is arranged to along main casing 12 bearing of trendType Groove,Type groove includes centrally located translot portion 44 and is positioned at two ends, translot portion 44 and symmetrical Chute portion 46a, 46b.Groove 42 contains can in groove the connecting pin 52 of sliding, original state Time, connecting pin 52 be positioned at chute portion 46a, the cecum of 46b and with cell wall against.

When control piece 40 is parallel to output shaft axis along main casing 12 in initial position as shown in arrow M When direction is moved, it is engaged in the connecting pin 52 of groove 42 and moves along chute portion 46a of groove 42, connect Pin 52 pivots around lead 53 axis direction as shown in arrow R1 through shift motion a, cam 50, Connecting pin 54 rotates accordingly with cam 5, and rotating of connecting pin 54 drives the Passive part 60 connected with it Axially move to away from work package 20 along output shaft；In the present embodiment, Passive part 60 and control piece 40 Moving direction is consistent.The movement of Passive part 60 causes the Access Division 27 connected with draw-in groove 64 to drive main part 28a moves with Passive part 60, causes the main part that originally working shaft 22a with mounting working chuck 22 connects 28a one end disengages with working shaft 22a.Once main part 28a separates with working shaft 22a, can allow work Make the relative housing 10 of assembly 20 to be pivoted；Connecting pin 52 is when chute portion 46a moves, by chute portion The top of 46a drops to translot portion 44, and the stroke a that connecting pin 52 is passed by is i.e. the unblock of control piece 40 Stroke.Moving when being engaged in the connecting pin 52 of the groove 42 translot portion 44 along groove 42, cam 5 is not Rotate.Move when being engaged in the connecting pin 52 of groove 42 chute portion 46b along groove 42, connecting pin 52 rise to the top of chute portion 46b from translot portion 44, and now cam 5 is anti-along direction shown in arrow R2 To rotation.

Second drive mechanism includes the rack gear arrangement driven by control piece 40, the gear being connected with rack gear arrangement Assembly 70, and the transmission component 80 of rotation is driven by gear assembly 70, transmission component 80 is used for driving The relative housing 10 of work package 20 pivots.

With reference to shown in Fig. 5, Fig. 6, control piece 40 is additionally provided with the second drive division, the of the present embodiment Two drive divisions are the driving arm 41 being arranged at control piece 40, and rack gear arrangement 34 is arranged at control piece and deceleration Between case 32, rack gear arrangement 34 includes and the holding assembly driving arm 41 to connect, and is used for supporting fortune The tooth bar 36 of dynamic device, keeps assembly to have lock-out state and release conditions, is in release when keeping assembly State, drives arm 41 to drive rack gear arrangement to move axially along output shaft, when keeping assembly to be in the lock state, Drive arm 41 that rack gear arrangement can not be driven to move axially along output shaft.The holding assembly of the present embodiment includes one To being rotatably arranged in the clamp hook piece 35,37 of tooth bar 36, clamp hook piece 35,37 along output shaft axial distribution, Drive arm 41 operationally along output shaft axially-movable.

Clamp hook piece 35,37 has latched position and off-position, when clamp hook piece 35,37 is in release position Putting, control piece 4 drives rack gear arrangement 34 to move along being parallel to output shaft axis by driving arm 41, when Clamp hook piece 35,37 one of them be in the locked position, control piece 4 by drive arm 41 can not drive tooth Strip device 34 moves.The end of tooth bar 36 is formed with the notch 36a along tooth bar bearing of trend, notch 36a Two side 36b be respectively arranged with perforate 36c, clamp hook piece 35,37 is by being arranged in tooth bar sidewall 36b The pivot 38 of perforate 36c is rotatably arranged in the notch 36a of tooth bar 36 one end.Clamp hook piece 35,37 On be respectively arranged with elastic component, the present embodiment elastic component uses torsion spring 39.

With reference to shown in Fig. 6, arm 41 is driven to be arranged at the medial surface of control piece 40 and internal convex to housing 10 Go out.Clamp hook piece 35,37 has under the effect of torsion spring 39 and protrudes from notch 36a to control piece 40 direction Prestressing force.When control piece 40 is in original state, the hook part 35a of the first clamp hook piece 35 is driven The withstanding effect of swing arm 41 overcomes torsion spring 39 active force to turn to the inside to stretching out notch 36a.

With reference to shown in Fig. 4 to Fig. 7, when control piece 40 is parallel to output shaft axis as shown in arrow M Direction, when housing 10 moves, drives arm 41 to move with control piece 40, drives arm 41 relative During rack gear arrangement 34 moves, to the first clamp hook piece 35 to compress power more and more less, until first In the hook part 35a of clamp hook piece 35 returns back to notch 36a under torsion spring 39 active force and with tooth bar notch The end wall 36d of 36a engages clamping.Now, move control piece 40 along direction shown in arrow M further, First, second clamp hook piece 35,37 is supported on reduction box 32 supporting surface 32a, drives arm 41 to act on First, second clamp hook piece 35, between 37 thus drive rack gear arrangement 34 entirety along direction shown in arrow M Mobile.As it was previously stated, control piece 40 moves relative to housing 10, when connecting pin 52 is in the first chute portion Moving in 46a to during with translot portion 44 intersection location, unlock stroke a and complete, work package 20 can be permitted Permitted relative housing 10 to be pivoted.In Fig. 7, the current location of control piece 40 is i.e. to drive arm 41 to start band The initial position that carry-over bar device 34 moves integrally.Now, move along direction shown in arrow M further Control piece 40, drives arm 41 close to the second clamp hook piece 37.

With reference to shown in Fig. 4, Fig. 8, connecting pin 52 intersects with translot portion 44 in the first chute portion 46a Position starts to move and be close to the second chute portion 46b in translot portion 44, and connecting pin 52 is in translot portion 44 Shift motion b be the switching stroke of control piece 40, the relative housing 10 of work package 20 is around pivotal axis Line Y1 rotates.When control piece 40 moves further along direction shown in arrow M, arm 41 is driven to compress the Two clamp hook pieces 37 make its hook part 37a overcome elastic force to be convex to inside tooth bar notch 36a, hook part 37a Depart from supporting surface 32a.When connecting pin 52 arrives translot portion 44 and the second chute portion 46b intersection location, Control piece 40 drives arm 41 to disengage with hook part 37a, and control piece 40 title is dynamic no longer drives rack gear arrangement 34 move integrally.Connecting pin 52 is in the shift motion b in translot portion 44, and is not resulted in cam 50 around guiding Post 53 centrage further rotates and the further of moving member 60 is moved, and the relative shell of work package 20 Body 10 turns over 180 degree.

With reference to shown in Fig. 4, Fig. 9, its mounting working chuck 24 is caused to turn to work when work package 20 rotates Making position, now working shaft 24a rotates to the position substantially aligned with main part 28a.Further along arrow The extreme position of control piece 40 to moving direction is moved in direction shown in head M, and connecting pin 52 is by translot portion 44 and second the intersection location sliding of chute portion 46b enter the second chute portion 46b and against the second chute portion The end wall of 46b, connecting pin 52 is i.e. adding of control piece 40 in the shift motion c of the second chute portion 46b Lock stroke, in this shift motion c, control piece 40 no longer drives rack gear arrangement 34 to move.Due to second Chute portion 46b and the first chute portion 46a are symmetrical arranged about translot portion 44, and therefore connecting pin 52 is in When moving in two chute portion 46b, connecting pin 52 band moving cam 50 around lead 53 centrage along R2 side To revolution.The revolution of cam 50 drives Passive part 60 to move along the rightabout moved with control piece 40. Passive part 60 promotes Access Division 27 overcome stage clip 29 active force and drive main part 28a together near work Make chuck direction to move so that main part 28a by before with the working shaft 22a of mounting working chuck 22 Disengaged position returns back to the position connected by the working shaft 24a of output shaft 6 with mounting working chuck 24.The most defeated Shaft 6 connects with working shaft 24a and puts in place, i.e. completes the position conversion between one action chuck 22,24, Output shaft 6 drives the mounting working chuck 24 connected therewith to rotate.And mounting working chuck 22 is owing to turning to non-work Make position, thus rotation cannot be driven by output shaft 6.

The stage clip 29 of the present embodiment plays a part again back-moving spring, due to main part 28a and work simultaneously Axle 24a undertakes the function of transmission moment of torsion after connecting, therefore the end that connects of working shaft is usually disposed as spline tooth, The end that connects of main part 28a is arranged to house the spline (with reference to Figure 11) of spline tooth the most accordingly, When main part 28a is during returning back to connect with working shaft 24a, due to reasons such as manufacturing tolerances, Spline tooth and spline likely have angular misalignment, say, that working shaft 24a connects end spline Tooth is not contained in the spline of main part 28a, but at main part 28a at the active force of spring 29, It connects holds spline tight against against working shaft spline tooth, once starts motor 8, and output shaft 6 drives main Body 28a rotates, and the spline of main part 28a then turns over an angle, main part 28a relative to spline tooth Spline is made to engage with spline tooth under the resilient force of spring 29, say, that main part 28a It is reset automatically to the position connected with working shaft 24a.

Control piece 40 moves to extreme position along moving direction from initial position, so that output shaft 6 Disengage with one of at least two mounting working chuck 22,24, another of at least two mounting working chuck 22,24 It is switched to the position connected with output shaft 6.Wherein, control piece 40 is moved to extreme position by initial position During, output shaft 6 first disengages with one of described at least two mounting working chuck 22,24, then working group The relative housing 10 of part 20 pivots, another of final output shaft 6 and at least two mounting working chuck 22,24 Connect.

Those skilled in the art are it is contemplated that the relative housing 20 of control piece 40 completes once along arrow M Complete unidirectional sliding, i.e. completes at least two mounting working chuck 22 and turns at diverse location with mounting working chuck 24 Change.Control piece 40 along be parallel to the direction of output shaft from the initial position near work package 20 move to Away from the extreme position of work package 20, so that output shaft 6 and described at least two mounting working chuck 22, one of 24 disengaging, another of at least two mounting working chuck 22,24 is switched to join with output shaft 6 The position connect.Control piece 40 is moved to extreme position by initial position, output shaft 6 with described extremely One of few two mounting working chucks 22,24 first disengage, and then the relative housing 10 of work package 20 pivots, Another of rear output shaft 6 and described at least two mounting working chuck 22,24 connects.

As the output shaft axis direction that is parallel to as shown in arrow M reversely moves control piece 40, complete one Secondary complete sliding, by the first drive mechanism and the second drive mechanism, can make mounting working chuck 22 and work The position of chuck 24 is changed again, is i.e. replaced by by mounting working chuck 22 and output shaft 6 by mounting working chuck 24 Connect and driven rotation by output shaft 6, do not repeat.

With reference to shown in Fig. 3, Figure 10, Figure 11, gear assembly 70 is arranged in main casing 12, transmission group Part 80 is arranged between main casing 12 and work package 20.Gear assembly 70 includes engaging with tooth bar 36 The gear wheel 72 of transmission, and the little gear 74 being coaxially fixedly installed by connecting shaft 71 and gear wheel 72, The little gear 74 of the present embodiment is arranged to helical gear.Wherein transmission component 80 includes engaging with little gear 74 The travelling gear 82 of transmission and the transmission arm 84 being connected with travelling gear 82, wherein travelling gear 82 Being also configured to helical gear, the helical angle of little gear 74 and travelling gear 82 is all provided with being set to 45 degree, to realize Spatial intersecting through-drive.Transmission arm 84 is connected with work package 20, to such an extent as to when tooth bar 36 drives canine tooth During wheel 72 rotation, little gear 74 produces corresponding rotation, thus drives travelling gear 82 around its axial line Rotating, travelling gear 82 rotates and drives transmission arm 84 and work package 20 around the axle center of travelling gear 82 Line rotates, and in the present embodiment, the axial line of travelling gear 82 is total to the pivot axis Y1 of work package 20 Axis, transmission arm 84 is arranged to transmission hook.

With reference to shown in Figure 12 to Figure 15, the hand-hold power tool 200 of second embodiment of the invention and the One embodiment has similar structures, and convenient for statement, identical structure is not repeated and repeats, different knots Structure is described specifically below.

Hand-hold power tool 200 has housing 210, is made up of two Hafu-type half-shell 210a, motor 208 are contained in main casing 212, handle portion 214 one end and the angled setting of main casing 212, and this angle exists About 90 degree；Handle portion 214 other end is detachably connected with battery bag 218, and battery bag 218 includes Multiple Rechargeable batteries；In handle portion 214, the position near main casing 212 is provided for Non-follow control The switch 204 of motor 208 and commutation trigger 202.

The output shaft 206 driven by motor 208, output shaft axis X 2 and horse it is provided with in main casing 220 Reach dead in line.Output shaft 206 and motor 208 are provided with the actuating device 230 for slowing down, transmission Device 230 is contained in reduction box 232.

Hand-hold power tool 200 includes the work package 20 ' being movably connected on housing 210；Working group The relative main casing 212 of part 20 ' pivots and arranges.The pivot axis Y2 of work package 20 ' and output shaft axis Between X2, angled α is arranged.Two mounting working chucks 22,24 of work package 20 ' are fixing connect and Be symmetrically disposed on the both sides of pivotal axis Y2, mounting working chuck 22,24 be respectively arranged with working shaft 22a, 24a, the angled β of working shaft 22a, 24a centrage on its bearing of trend are arranged.Mounting working chuck 22 For clamping drill bit 220, mounting working chuck 24 is used for clamping screwdriver bit 240.

Being provided with sliding assembly on main casing 212, sliding assembly includes being movably set in outside main casing 212 The control piece in portion and be arranged at the sliding component within main casing 212.Control piece and work package 20 ' it Between be provided with power train, by power train, the motion of control piece operationally drives work package 20 ' pivot Turn, it is achieved two mounting working chuck 22,24 positions are mutually changed.

Power train includes the sliding component driven by control piece, and is driven the tumbler rotated by sliding component, Sliding component one end connects with output shaft 206, and the other end selectively disengages with one of mounting working chuck or connects, Tumbler is used for driving the relative housing of work package 20 ' to pivot.

The control piece 250 of the present embodiment is also the top being movably arranged at main casing 212 with slide form Portion, it is internal that sliding component is movably arranged at main casing 212 with the form of sleeve 252.Tumbler 260 Being driven rotation by sleeve 252, its middle sleeve 252 is connected by connecting portion 251 is fixing with control piece 250. Sleeve 252 is circumferentially arranged direction recess 254, sleeve 252 and output shaft 206 matched in clearance, with As for when output shaft 206 is driven rotation by motor 208, sleeve 252 does not rotates with output shaft 206.

The output shaft 206 of the present embodiment includes the first axle 2061 and the second axle 2062, and the first axle 2061 sets It is equipped with slotted eye 206a, the second axle 2062 arranges key tooth 206b, by key tooth 206b and slotted eye 206a, Together with first axle 2061 connects with the second axle 2062 activity, the first axle 2061 rotarily drives the second axle 2062 rotate together, and the second axle 2062 linearly can move relative to the first axle 2061 along output shaft axis X 2. First axle 2061 and the second axle 2062 are provided with the most convex respectively at the approximately mid way between of bearing of trend Protruding shaft portion 2061a, the 2062a gone out, tumbler 260 set is arranged at protruding shaft portion 2061a, 2062a of output shaft Outside and with output shaft 206 matched in clearance, output shaft 206 rotate tumbler 260 can not be driven to rotate.

Tumbler 260 includes gear part 263 and the support set 264 that connect fixing with gear part 263, Support set 264 peripheral surface is provided with the positioning bar 265 projected radially outward.The periphery of support set 264 is entered One step is provided with a pair passive location bearing 268, location bearing 268 and main casing 212 phase Engagement to such an extent as to location bearing 268 can rotate relative to main casing 212 but can not move relative to main casing 212, Location bearing 268 is arranged at the homonymy of positioning bar 265, one of them location bearing 268 and positioning bar 265 Abut, thus limit tumbler 260 and move relative to main casing 212, but tumbler 260 can be the most main Housing 212 rotates.

Gear part 263 is arranged to annular, and gear part 263 is sheathed on the end of support set 264, and passes through Support set 264 and ring gear portion 263 are fixedly connected by pin 267, and gear is stretched in pin 267 one end The looping pit 266 in portion 263 is meshed with the direction recess 254 of sleeve 252.

Sleeve 252 is coupled on the connecting portion 2062b of the second axle 2062 by collar 256, say, that Sleeve 252 is fixed between protruding shaft portion 2062a and the collar 256 of the second axle 2062；When control piece 250 When being in initial position, sleeve 252 connects with working shaft one of 22a, 24a of mounting working chuck, to such an extent as to Motor 208 can drive the mounting working chuck connected with sleeve 252.When control piece 250 band moving sleeve 252 by Initial position starts mobile, and sleeve 252 moves relative to the first axle 2061 together with the second axle 2062, The result of movement is that first sleeve 252 disengages with working shaft one of 22a, 24a and connect, control piece 250 Movement can make the relative main casing 212 of tumbler 260 pivot around output shaft axis X 2 further.Due to work Make to be correspondingly provided with on assembly 20 ' and the gear part (not shown) of gear part 263 engaged transmission, Such structure makes tumbler 260 drive work package 20 ' around pivot when output shaft axis X 2 rotates Axis Y2 rotates.

Figure 14, the protruding shaft portion 2062a of output shaft the second axle 2062 are provided with cannelure 208, this ring The effect of shape groove is when the second axle 2062 moves relative to the first axle 2061 and be close, the first axle 2061 Connecting portion 2061b can stretch in this cannelure 2062c, such design can reduce main casing 212 Development length, overall volume diminishes, weight, hand-hold power tool operation lighter and handier.

With reference to Figure 14, Figure 15, on main casing 212, position near work package 20 ' is provided with annular and leads Groove 213, work package 20 ' is provided with the mounting disc 26 that engagement is connected in guide groove 213, works as work Assembly 20 ' is when pivotal axis Y2 rotates, and mounting disc 26 rotates in annular guide channel 213, such Structure makes to rotate more flexible.

With reference to Figure 16, shown in 17, side by side and connection is arranged the direction recess 254 of the present embodiment by two Y shape groove 2540,2550 forms.Wherein first Y shape groove 2540 includes straight-line groove 2541, Yi Jiyou The oblique trunking 2542,2543 that straight-line groove 2541 extends to both sides, the twoth Y shape groove 2550 includes straight line Groove 2551, and the oblique trunking 2552,2553 extended to both sides by straight-line groove 2551.Wherein oblique trunking The extending end of 2542 is connected with the extending end of oblique trunking 2552, the extending end of oblique trunking 2553 It is connected with the extending end of oblique trunking 2543.

With reference to shown in Figure 17, Figure 18, when control piece 250 is in initial position, pin 267 is engaged in The top of straight-line groove 2541, now mounting working chuck 24 is in operating position, i.e. sleeve 252 and filing appliance The working shaft 24a of 24 connects (with reference to Figure 14).

With reference to shown in Figure 17, Figure 19, when control piece 250 is parallel to output shaft as shown in arrow M1 When axis direction moves, band moving sleeve 252 moves, pin 267 in the top of straight-line groove 2541 to directly The terminal sliding of wire casing 2541, when pin 267 slides onto the terminal of straight-line groove 2541, sleeve 252 with The working shaft 24a of mounting working chuck 24 disengages and connects, the relative main casing 212 of Passive part 260 during this Then keep static.

With reference to shown in Figure 17, Figure 20, control piece 250 move along direction shown in arrow M1 further to Extreme position, pin 267 enters oblique trunking 2542 in the terminal sliding of straight-line groove 2541, and to oblique trunking The terminal of 2542 is close, and during this, sleeve 252 drives tumbler 260 to revolve around output shaft axis X 2 Turn.Connect owing to the working shaft 24a of sleeve 252 with work package 20 ' disengages, therefore tumbler 260 Work package 20 ' is driven to rotate around pivot axis Y2 by gear part 263, during this, work package 20 ' turn over 90 degree around pivot axis Y2, and control piece 250 now have been moved into presetting can be the most main The extreme position that housing 212 moves.

With reference to shown in Figure 17 to Figure 21, rotate to operating position to enable mounting working chuck 22, need into one Step makes work package 20 ' be threaded through 90 degree around pivot axis Y2.Now reverse along with shown in arrow M1 Control piece 250 is moved in i.e. direction shown in arrow M2, and pin 267 enters in the terminal sliding of oblique trunking 2542 Oblique trunking 2550, and close to the terminal of oblique trunking 2550, and sleeve 252 drives tumbler 260 around defeated Shaft axis X 2 further rotates, and work package 20 ' is again rotated through 90 degree around pivot axis Y2, i.e. work Making assembly 20 ' and rotate 180 degree altogether around pivot axis Y2, mounting working chuck 22 rotates to operating position.

With reference to shown in Figure 17, Figure 22, the output shaft axis direction that is parallel to as shown in arrow M2 moves Shi Yidong control piece 250 returns back to initial position, and pin 267 enters straight in the terminal sliding of oblique trunking 2550 Wire casing 2551, and near straight-line groove 2551 terminal, now sleeve 252 moves to just with control piece 250 Beginning position, sleeve 252 realizes connecting with the working shaft of mounting working chuck 22, Passive part 260 during this Main casing 212 relatively then keeps static.

In sum, control piece 250 moves back and forth once along being parallel to output shaft axis direction, working group At least two work head of part 20 ' is in different position conversions.Those skilled in the art are it is contemplated that control Product 250 along be parallel to output shaft axis in initial position move to extreme position and from extreme position along phase Opposite direction moves to initial position, so that output shaft 206 and at least two mounting working chuck 22,24 One of disengage, another of at least two mounting working chuck 22,24 is switched to connect with output shaft 206 Position.Control piece 250 during initial position moves and moves to extreme position, output shaft 206 with One of described at least two mounting working chuck 22,24 first disengages, then the relative housing 10 of work package 20 Pivot；Control piece 250 during extreme position moves to initial position, the relative shell of work package 20 Body 10 pivots, and another of then output shaft 206 and described at least two mounting working chuck 22,24 is carried out Connect.

With reference to Figure 23 to Figure 33, the hand-hold power tool 300 of third embodiment of the invention is the first reality Execute the another kind of deformation of example.Convenient for statement, identical structure represents to be identically numbered and is not repeated Repeating, different structures will be described in greater detail below.

With reference to shown in Figure 23 to Figure 26, hand-hold power tool 300 includes controlling organization 330, is used for Relative for work package 20 housing 310 position is locked.Only relieve work when controlling organization 330 Making the locking of assembly 20, work package 20 could rotate relative to housing 310 around pivot axis Y3, from And make mounting working chuck 22,24 to change between operating position and off-position respectively, mounting working chuck 22, One of 24 when being in the operating position axially connected with output shaft 316, and in mounting working chuck, 22,24 is another One is in the off-position the most angled with output shaft.

Housing 310 includes the main casing 312 extended longitudinally, and work package 20 is arranged at main casing actively One end of body 312, motor 8 is arranged at away from the main casing 312 of work package 20, output shaft 316 Extending longitudinally in main casing 312, output shaft axis X 1 overlaps with motor axis.Hand-hold type power work Tool 300 is additionally provided with work light 320, and the work light 320 of the embodiment of the present invention is arranged at main casing 312 Top near the position of work package 20, work light 320 can be used in the event that lighting conditions are poor Illuminating the working region in hand-hold power tool 300 front, work light preferably employs LED.This enforcement In, work light 320 is by switch 4 control work；Certainly work light 320 can also independently be controlled by alternate manner System, optionally opens according to working condition.

Handle 14 one end is connected with main casing 312, and the other end connects battery bag 18.Mounting working chuck 22, 24 are respectively arranged with working shaft 22a, 24a.With reference to Figure 25, working shaft 22a, 24a are respectively provided with Connect the hexagon accepting hole (only illustrating the accepting hole 24b of working shaft 24a in figure) of work head, to such an extent as to Be provided with the screwdriver bit of six side's handles, drill bit can be quickly installed or dismantle, and eliminates such as three-pawl type work Make locking or the cumbersome process of release operation of chuck.The structural improvement of mounting working chuck 22,24 so that work Make assembly 20 overall structure compacter.

Long for hand-hold power tool 300 complete machine with mounting working chuck 22 free terminal when being in operating position The original position of degree, away from the afterbody of mounting working chuck 22 as end of whole length L1 on housing 310 End position, then center of gravity G of hand-hold power tool 300 is to the distance of the free terminal of mounting working chuck 22 For L2, this distance L2 accounts for the 7/10 of whole length L1, say, that hand-hold power tool 300 The position of center of gravity G be arranged near the holding area of handle 14, so that hand-held tool is in operation During be avoided that due to center of gravity near work package 20 to operator's wrist portion produce torque, reduce behaviour Make fatigue strength.And the hand electric power instrument 300 of the present embodiment operates light and handy, easy to carry.

In present embodiment, the longitudinal axis of main casing 312 overlaps with output shaft axis X 1, main casing 312 Its longitudinal extension direction includes housing motor 8 and the main part of reduction box 32, and near working group Part 20 is arranged and for housing the leading section of controlling organization 330.Longitudinal axis is to the main part of main casing 312 The distance at top is H1；Longitudinal axis is to distance H2 at the top, leading section of main casing 312；Work package When one of mounting working chuck of 20 is in operating position, longitudinal axis is in the filing appliance crown of operating position to this The distance in portion is H3；Then in the present embodiment, distance H3 is less than distance H1 less than distance H2, distance H2. The body height of main casing 312 is arranged such so that be contained in the work head of mounting working chuck at small space Or when special angle position performs work, the accessibility of work head opposite piece is good, it is to avoid work head Owing to being limited by the volume of main case or shape and being cannot be introduced into this space.

It is provided with the control knob 318 controlling moment of torsion near handle 14 end of battery bag 18, works as mounting working chuck When 24 conversions are to operating position, mounting working chuck 24 is clamped with screwdriver bit 240 for performing stubborn screw Work, can adjust screwdriver bit 240 by regulation control knob 318 and perform the output moment of torsion needed for work.

With reference to Figure 27, control knob 318 and the panel 317 being arranged at handle 14 are electrically connected with, panel Being integrated with adjustable resistance or electric capacity in 317, operation control knob 318 can make resistance or capacitance change, control Making sheet 317 i.e. achieves and electronically carries out moment of torsion regulation.Arrange relative to routine, namely at main casing Internal arranging machinery and mechanically carry out moment of torsion adjustment, the electronically control of the present embodiment is turned round The mode of square is few due to parts, thus more compact structure, instrument weight saving；By effectively utilizing work The inner space of tool, makes body of tool volume less, operates more flexible.

With reference to shown in Figure 27 to Figure 30, controlling organization 330 includes the control piece 301 for manual operation, The elastic component 302 being arranged between control piece 301 and housing 310, wherein elastic component 302 and control piece 301 elastic abuttings so that control piece 301 is held in latched position in normal state.Control piece 301 Proximity switches 4 and move setting relative to housing 310, specifically, the moving direction of control piece 301 is parallel In output shaft axis X 1.Control piece 301 includes the unlocking knob 301a, Yi Jiyan exposing to housing 310 Stretching into the mating part in housing 310, mating part includes a pair connection post 301b.Specifically, match around the boundary line Between switch 4 and reduction box 32.Control piece 301 moves along away from work package 20 direction, it is achieved Release the position locking of work package 20 and control output shaft 306 and working shaft one of 22a, 24a disengagement Connect.

The such set-up mode of control piece 301 so that operator can realize with the hands of gripping handle 14 simultaneously Gripping handle 14 and the motion of control piece 301, be also with the operation carrying out switching 4 on the other hand.And operate Another hands of person can perform other work such as the position conversion of mounting working chuck 22,24, without both hands Replacement operation frequently.It addition, moving direction when control piece 301 unlocks meets the operating habit of user, It is to say, move control piece 301 to away from work package 20 direction, release work package 20 relative The position locking of housing 310, control piece 301 moves near work package 20 direction, makes work package The position of 20 relative housings 310 locks.

Controlling organization 330 also includes the locking piece 303 driven by control piece 301, locking piece 303 drive Dynamic connector 305.The locking piece 303 of the present embodiment is arranged to double end jam plate, close on double end jam plate One end face of work package 20 is arranged to inverted U-shaped, and double end jam plate includes a pair along output shaft side To extending and interconnective side plate 304.This inverted U-shaped end face selectively with work package 20 Connecting or disengage, when U-shaped end face connects with work package 20, work package 30 is locked in casing 310；When U-shaped end face disengages with work package 20, elastic component 302 provides control piece 301 to drive lock The elastic force that locking member 303 moves near work package 20, work package 30 discharges from latched position； Thus the position conversion carrying out mounting working chuck can be rotated around pivotal axis Y3 relative to casing 310.Working group The arrangement of clutch connected with connector 305 linkage it is provided with between part 20 and output shaft 316；The present embodiment Arrangement of clutch be arranged to the clutch cover 307 that is socketed on movably on output shaft 316.On clutch cover 307 One end of output shaft 316 is provided with back-moving spring 308, and clutch cover 307 is away from output shaft 316 One end is optional axially to be connected with working shaft one of 22a, 24a or disengages.

Be respectively provided with on side plate 304 accepting groove 304a, accepting groove 304a be oppositely arranged for respectively with control The connection post 301b of product 301 connects.Side plate 304 is additionally provided with the draw-in groove 304b of pair of opposing. Together with connecting in connector 305 is contained in the space that locking piece 303 is formed and with locking piece 303.Tool Body ground, connector 305 includes a pair side arm 306, and connects the transverse arm of side arm 306；Wherein side arm 306 are positioned at inside pair of side plates 304 and are parallel to each other with side plate 304, and transverse arm is the most vertical with side arm 306 Directly, transverse arm is provided with the U-lag mouth 306b connected with clutch cover 307, side arm 306 is respectively provided with The Access Division 306a that laterally outward side is protruded, for connecting with side plate 304 draw-in groove 304b.

The control piece 301 of controlling organization 330, locking piece 303, connector 305 and clutch cover 307 So connect so that when operator overcomes the active force promotion control of elastic component 302, back-moving spring 308 When part 301 is allowed to slide onto unlocked position to the direction away from work package 20, control piece 301 drives double Head jam plate is parallel to output shaft 316 and moves, double end jam plate move while band follower link 305 along identical Direction is moved, thus drives clutch cover 307 sliding to the direction away from work package 30 on output shaft 316 Move to disengage with working shaft one of 22a, 24a connect.When clutch cover 307 slide onto with working shaft 22a, During the position that one of 24a disengages, locking piece 303 is correspondingly moved to the position disengaged with work package 20. Now operator pivots work package 20 by relative casing 310, enters mounting working chuck 22,24 position Row conversion.

Once mounting working chuck 22,24 position starts conversion, and operator gets final product release control part 310, works as work Making chuck 22,24 position to convert, control piece 310 can automatically reply under the effect of elastic component 302 To latched position；Now, clutch cover 307 under the active force of back-moving spring 308, automatically return to The position that working shaft one of 22a, 24a connect, makes relative casing 310 position of work package 20 lock Fixed, make motor running drive work head perform relevant work now by triggering switch 4.

Controlling organization 330 is arranged such so that when control piece 301 is in the locked position, output shaft 316 Not only achieve with working shaft one of 22a, 24a and connect, and locking piece 303 is by work package 20 phase The position of housing 310 is locked, so that work head is performing concrete boring or stubborn screw During work, it is to avoid the relative housing 310 of work package 20 produces and rocks, and works more stable, more accurate.

In order to realize the conversion of mounting working chuck 22,24 position with quick change, and have when being transformed in position One judges accurately, and hand-hold power tool 300 is additionally provided with the prompting mechanism that puts in place.The present embodiment arrives Position prompting mechanism is arranged between work package 20 and housing 310.The prompting mechanism that puts in place has engagement shape State and released state, during engagement, at least two mounting working chuck one of them be in operating position, point When state, at least two mounting working chuck is in off-position.The prompting mechanism that puts in place includes being arranged at The alignment pin 309 of housing, the elastic component 311 abutted with alignment pin 309, and it is arranged at work package The locating slot 26a of the mounting disc 26 of 20.Alignment pin 309 remain under the effect of elastic component 311 to The trend of mounting disc 26 bias.When the relative housing 310 of work package 20 pivots, once mounting working chuck 22, the position conversion of 24 puts in place, and alignment pin 309 the most automatically slips into locating slot 26a from mounting disc 26 In, thus alignment pin 309 is connected with locating slot 26a, the now relative machine of mounting working chuck 22,24 There has been a basic fixed position position of shell 310.The alignment pin 309 of present embodiment uses metal material system Becoming, work package 20 uses plastic material to make, therefore when alignment pin 309 is in the effect of elastic component 311 Clear and melodious card chorus can be heard, with carrying of putting in place to one conversion of operator when slipping into locating slot 26a under power Wake up, the most also have the feel that conversion puts in place, i.e. operator to feel simultaneously and grant the pivotal force of work package 20 Can be put in place the counteracting force of prompting mechanism.Alignment pin 309 in present embodiment and locating slot 26a Position do not limited by the present embodiment but setting can be exchanged.

By the unlocking knob 301a of release control part 301, the position of the relative housing 310 of work package 20 Automatic locking has been carried out under the effect of controlling organization 330.When mobile unlocking knob 301a is to unlocked position, The position locking of the relative housing 310 of work package 20 is released, output shaft 306 and working shaft simultaneously One of disengage, now, as long as operator imposes on work package 20 and overcomes the active force of the prompting mechanism that puts in place, Making alignment pin 309 disengage from locating slot 26a, work package 20 can pivot to realize by housing 310 relatively Operating position is changed.Certainly, alignment pin 308 and the work package 20 of the present embodiment is not limited to indication material Material, can replace with other material.The quantity of locating slot 26a is arranged also can be with the quantity phase of mounting working chuck Coupling, so makes first job chuck can play positioning action when being transformed into operating position.Location The position of groove 26a is arranged can be corresponding with the position of mounting working chuck 22,24, it is also possible to according to concrete structure Set.

In order to make control piece 301 drive locking piece 303 and connector 305 stably same in moving process Moved further, simultaneously in order to effectively utilize enclosure interior space, near work package on reduction box 32 20 one end are provided with guider, i.e. guider is arranged at the front end of reduction box 32.Guider bag Include the guide plate 313 axially extended, and the lead 315 extended in parallel for a pair with guide plate 313； Being provided with gap between guide plate 313 and lead 315, guide plate 313 is positioned at defeated with lead 315 The top of shaft 316；The outside of lead 315 is respectively arranged with the side arm 306 housing connector 305 The groove 319 (Figure 25 only illustrates one) of sliding.When control piece 301 is in the locked position, locking piece 303 inferoanteriors being positioned at guide plate 313.Control piece 301 operationally drives locking piece 303 at this Band follower link 305 sliding in this groove 319 while moving in gap.So arrange and make control machine The structure of structure 330 is relatively reliable, stable.

With reference to shown in Figure 28, mounting disc 26 is provided with locked groove 26b, when control piece 301 is in locking During position, locking piece 303 coordinates locking with locked groove 26b.In the present embodiment, a pair of double end jam plate flat The end of row side plate 304 is engaged in locked groove 26b respectively, thus work package 20 is locked in housing 310；Effectively utilizing space for reducing mechanism volume, locked groove 26b sets with the acting surface of locking piece 303 It is placed in the top of control piece 301, the lower section of output shaft axis X 1.

With reference to shown in Figure 30 to Figure 33, when along the direction gram being parallel to output shaft 316 shown in arrow M ' Taking elastic component 302 and Flexible Reset 308 active force promotes control piece 301, control piece 301 slip is extremely Unlocked position, now locking piece 303 moves the underface to guide plate 313.The movement of control piece 301 Drive locking piece 303 and connector 305 to move along respective direction, thus cause clutch cover 307 and work Axle one of 22a, 24a disengage and connect, and locking piece 303 disengages with work package 20 and connects, specifically simultaneously Ground, the pair of parallel side plate 304 of double end jam plate is disengaged with locked groove 26b.Now operator passes through phase Casing 310 is pivoted work package 20, mounting working chuck 22,24 position is changed.Once work Chuck 22,24 position converts, and the prompting mechanism that puts in place can send clear and melodious card chorus or be transformed into The feel of position.Release control part 310, control piece 310 can return under the effect of elastic component 302 automatically Multiple to latched position.

Claims (16)

1. a hand-hold power tool, including:

Housing, including main casing and the handle of setting angled with main casing of longitudinal extension；

Motor, is arranged in described main casing；

Output shaft, is driven by motor and rotates；

Work package, including at least two mounting working chuck；

Switch, is arranged at described handle, is used for controlling motor；

It is characterized in that: described at least two mounting working chuck includes working shaft respectively, described work package activity is even It is connected to main casing one end, thus each mounting working chuck in described at least two mounting working chuck can be in work Between position and off-position change, described at least two mounting working chuck one of them be in operating position, The working shaft of this mounting working chuck axially connects with output shaft, remaining work in described at least two mounting working chuck Chuck is in off-position, the working shaft of this remaining mounting working chuck and the angled setting of output shaft；Described Motor is arranged away from work package, and hand-hold power tool also includes that battery bag, battery bag are connected to handle And arrange away from main casing, the center of gravity of hand-hold power tool is positioned at the grip part of handle.

Hand-hold power tool the most according to claim 1, it is characterised in that: described working shaft is provided with use In the hexagon accepting hole connecting work head.

Hand-hold power tool the most according to claim 1, it is characterised in that: the axis co-planar of working shaft Arrange.

Hand-hold power tool the most according to claim 3, it is characterised in that: between the axis of working shaft Angled setting, described angle is in the range of 60 degree to 130 degree.

Hand-hold power tool the most according to claim 1, it is characterised in that: work package is relative to housing Pivot and arrange, the pivot axis of work package and output shaft axis co-planar and angled setting.

Hand-hold power tool the most according to claim 5, it is characterised in that: described at least two works Chuck is fixed connection and is symmetrical arranged relative to the pivot axis of work package.

Hand-hold power tool the most according to claim 1, it is characterised in that: described hand-hold type power work Tool also includes the controlling organization locked by work package relative to shell position, and described controlling organization includes neighbouring The control piece of described switch, described control piece operationally releases the position locking of work package and controls defeated Shaft disengages with one of working shaft and connects.

Hand-hold power tool the most according to claim 7, it is characterised in that: described control piece is relative to shell Body moves setting, and described control piece is along moving the position realizing releasing work package away from work package direction Locking and control output shaft disengage with one of working shaft and connect.

Hand-hold power tool the most according to claim 8, it is characterised in that: the movement of described control piece It is oriented parallel to output shaft.

Hand-hold power tool the most according to claim 7, it is characterised in that: described controlling organization is also Including the locking piece arranged with control piece linkage, and the elastic component abutted with control piece elasticity, described bullet Property part provide control piece to drive the elastic force that moves near working group of locking piece, described locking piece is selectively Disengage with work package or connect.

11. hand-hold power tools according to claim 10, it is characterised in that: described hand-hold type power Instrument also includes the arrangement of clutch arranged with locking piece linkage, and described arrangement of clutch one end is coupled to movably Output shaft, the other end selectively disengages with one of working shaft or connects.

12. hand-hold power tools according to claim 1, it is characterised in that: described work package with Be provided with the prompting mechanism that puts in place between housing, described in the prompting mechanism that puts in place there is engagement and released state, During engagement, one of them arrival operating position of described at least two mounting working chuck, during released state, Described at least two mounting working chuck leaves operating position so that the prompting mechanism that puts in place be in engagement or Released state.

13. hand-hold power tools according to claim 12, it is characterised in that put in place described in: prompt machine Structure includes the alignment pin being arranged at housing with work package one of both, is arranged at housing and work package two Another the locating slot of person, and the elastic component abutted with alignment pin, described alignment pin selectively with Described locating slot connects or disengages.

14. hand-hold power tools according to claim 1, it is characterised in that: described hand-hold type power Instrument also includes that electronic torque controls device, turns round for operationally regulating the output of at least one working shaft Square.

15. hand-hold power tools according to claim 1, it is characterised in that: described main casing includes For housing the main part of reduction box, and the leading section near work package, main casing longitudinal axis is to front The distance of end top is less than the distance to main part top.

16. hand-hold power tools according to claim 15, it is characterised in that: described at least two work Make chuck one of them when being in operating position, main casing longitudinal axis is little to the distance at this mounting working chuck top In the distance to top, leading section.