CN201534324U - Output form switching device - Google Patents

Abstract

An output form switching device comprises a casing arranged on an electric tool, an outer cover combined on the periphery of the casing, and a regulating cover combined on the periphery of the outer cover, wherein the regulating cover can freely rotate in left direction and right direction, the switching device can be switched to a torsion regulating gear for regulating output torsion when the regulating cover rotates, and the regulating cover can synchronously drive the outer cover to rotate for switching the functional regulation file positions including rotation output, impact, hammer and the like after the regulating cover rotates to a preset angle.

Description

Output kenel switching device shifter

Technical field

The utility model relates to a kind of electric tool that is applied to, and multiple function can be gathered in one and be carried out the function device for switching.

Background technology

Be used at present to bore, the electric tool of work such as lock, its structure is that the power with motor is delivered to the output shaft that drill bit, the first-class tool heads of bottle opener can be installed via gear train, uses the speed changing function that reaches power output and deceleration or speedup; In addition, in order to allow screw lock tightlyer, or the screw of locking can successfully be unloaded, some bores, electric tool of lock usefulness also possesses the hammering function, use and lock screw tighter, or make screw lax so that unload in the moment of unloading screw in the moment of lock screw.

Functions such as the torsion adjustment of known electric tool, rotation output and hammering, be to cover by operation one torsion to adjust switching, that is only cover the switching of finishing aforementioned three kinds of functions by a torsion, but, electric tool surpasses aforementioned three above functions (for example increasing impact function) if being had simultaneously, then need the toolroom machine more than two or two just can reach demand, so that it is very high to buy the expense of toolroom machine, and too much toolroom machine can take more space again.

The utility model content

Main purpose of the present utility model is to solve known electric tool and desires to reach and have rotation output, torsion adjustment, impact output and hammering output etc. above more than three kinds during operating function, the toolroom machine of need preparing more than two or two reach demand respectively, so that equipment cost is higher, the problem that excessively takes up room.

Of the present utility model being characterised in that provides a kind of the lid with loam cake by rotation mode operation one adjustment to do synchronously or relativity, can be in the function of switching between the function more than three kinds; Its structure that is applied to electric tool includes the enclosing cover that a shell, is combined in this shell periphery, an and adjustment lid that is combined in this enclosing cover periphery, described enclosing cover covers the different institutions that is connected in the electric tool with adjustment, when described adjustment lid rotates, can switch to torsion and adjust gear, to carry out the adjustment of outputting torsion; After adjusting lid rotation one predetermined angular, then can drive this enclosing cover rotation synchronously and adjust the file position with the function that switches to functions such as comprising rotation output, impact and hammering.

The utility model comprises for the technological means of described output kenel switching device shifter: a wall has the shell of at least one groove; One be combined in the peripheral of this shell and can with the counterrotating enclosing cover of this shell, the external diameter wall of described enclosing cover is provided with the circular groove groove and to the hook portion of groove location that should shell, this hook portion can be with respect to the enclosing cover resilient movement, is provided with at least one projection in this circular groove groove; One is combined in the peripheral of this enclosing cover also can cover with the counterrotating adjustment of this enclosing cover, and the internal diameter of described adjustment lid is provided with the locating slot of corresponding described hook portion position and the projection of the described scrobicular ring ditch of at least one correspondence position.During by the rotation of adjustment lid, the mechanism of electric tool can be switched to torsion and adjust gear, and can make the torsion adjustment region of described hook portion between this locating slot and this direct limit position carry out the adjustment of outputting torsion.When making the hook portion of enclosing cover embed the recess of adjusting lid when adjusting lid rotation one predetermined angular, just reach described torsion and adjust intersection between file position and the function adjustment file position, be last document location of described torsion adjustment gear.Adjust and cover when being rotated an angle, then can utilize this projection to promote projection and affect enclosing cover to rotate the mechanism that affects in the electric tool synchronously to switch to function adjustment file position, this function is adjusted file position and is comprised functions such as rotation output, impact and hammering.

The switching device shifter of aforementioned switching device shifter of the present utility model and known electric tool in comparison, its characteristics are that the utility model adjusts lid by one and do synchronous or relative rotation with loam cake and can control above the output mode more than three kinds, make that operation is more convenient, volume is littler, can not take too much space, really be a utility model of very having a progressive.

Description of drawings

Fig. 1 is for showing the three-dimensional exploded view of the utility model primary clustering syntagmatic.

Figure 1A is the plan view that shows the utility model adjustment lid structure from the end.

Fig. 2 is applied to the embodiment combined planar cutaway view of electric tool for showing switching device shifter of the present utility model.

Fig. 3 is operated the embodiment section plan that switches on rotation output and torsion adjustment range state for showing the utility model switching device shifter.

Fig. 4 is operated the embodiment section plan that switches on rotation output and torsion adjustment last step gear for showing the utility model switching device shifter.

Fig. 5 impacts the embodiment section plan of adjusting range state for showing that the utility model switching device shifter is operated to switch on.

Wherein:

1...... shell 11...... groove 2...... enclosing cover

21...... circular groove groove 211...... projection 22...... hook portion

221...... adjusting, elastic portion 3...... covers the 31...... recess

32...... projection 4...... torsion guiding mechanism 41...... motor gear

42...... planetary gearsets 43...... driving-disc 431...... external tooth

44...... the main shaft 45...... first spring 46...... output shaft

461...... hammering piece 47...... the 3rd spring 48...... adjusts slide block

5...... impact guiding mechanism 51...... hammering seat 511...... projection

512...... external tooth 52...... switches ring 521...... internal tooth

6...... hammering guiding mechanism 61...... movable component 611...... first stopper section

612...... the movable ratchet of the second stopper section 62......, the second spring 63......

64...... fixed ratchet wheel T...... torsion adjustment region

The specific embodiment

Following conjunction with figs. and element numbers are done more detailed description to embodiment of the present utility model, make to have the knack of this technical field person and can implement according to this after studying this specification carefully.

As Fig. 1, Figure 1A and shown in Figure 2, the output kenel switching device shifter that the utility model provides is a kind of device that can be applied to such as toolroom machines such as electric drill, electric screw drivers, and it includes a shell 1, an enclosing cover 2 and is adjusted and covered 3; Described shell 1 is a kind of cylindrical body with class, space can be used for holding driving and torsion guiding mechanism 4, impact guiding mechanism 5 and the hammering guiding mechanism 6 (as shown in Figure 2) that electric tools comprises in it, and the wall of this shell 1 has at least one groove 11.Described enclosing cover 2 be used for activity be combined in the peripheral of shell 1 and can with this shell 1 relative rotation, the external diameter wall of enclosing cover 2 is provided with a circular groove groove 21 and an at least one hook portion 22, and is provided with a projection 211 in circular groove groove 21; Described hook portion 22 is incorporated into from one-body molded strip elastic portion 221 1 ends that come out of enclosing cover 2 sidewalls, make hook portion 22 have elasticity and can and enclosing cover 2 relatively move.Described adjustment lid 3 be used for activity be combined in the peripheral of enclosing cover 2 and can with enclosing cover 2 synchronously or relative rotations, the groove 31 that 3 internal diameter is provided with two the described hook portion of correspondence 22 positions is covered in adjustment, and the projection 32 of the described circular groove groove of at least one correspondence 21 positions.

As shown in Figure 2, the applied electric tool of the utility model switching device shifter is to be provided with to comprise one and drive and torsion guiding mechanism 4, impacts a guiding mechanism 5 and a hammering guiding mechanism 6 in described shell 1; Described driving and torsion guiding mechanism 4 include a motor gear 41 that is connected to the motor (not shown), motor gear 41 engagements one planet gear train 42, planetary gearsets connects the driving-disc 43 that an external diameter is provided with plural external tooth 431, the center of driving-disc 43 connects a main shaft 44 axially and movably, main shaft 44 1 ends then axially flexibly connect an output shaft 46, and output shaft 46 can be for installing such as drill bit, the first-class tool heads of screwdriver.Main shaft 44 is provided with the hammering seat 51 that an external diameter has plural external tooth 512, and hammering seat 51 1 end faces are provided with two hammering pieces 511, is provided with first spring 45 between hammering seat 51 and the driving-disc 43.

Described impact guiding mechanism 5 includes aforesaid hammering seat 51, and the switching ring 52 of being located at this hammering seat 51 and driving-disc 43 peripheries, the internal diameter that switches ring 52 be provided with can with the internal tooths 521 of external tooth 431 or 512 engagements; When the adjustment lid 3 that is combined in enclosing cover 2 peripheries is rotated, the projection 32 that moves along circular groove groove 21 can drive projection 211, be that synchronous rotary outer cover 2 orders about that to switch ring 52 mobile between driving-disc 43 and hammering seat 51, so that internal tooth 521 engagement external tooth 431 or external tooths 512 produce large and small different impact effect.

Described hammering guiding mechanism includes the movable component 61 of being located at output shaft 46 peripheries, outstanding respectively one first stopper section 611, the two ends of this movable component 6 and one second stopper section 612, second stopper section 612 and fixedly between the bearing of output shaft 46 one second spring 62 is set, 611 of first stopper sections connect described enclosing cover 2, can drive movable component 61 during enclosing cover 2 rotations moves axially along output shaft 46, and then adjustment activity ratchet 63 contacts with fixed ratchet wheel 64, produces the function that axially moves back and forth hammering to switch output shaft 46.

Fig. 3 is for showing that output kenel switching device shifter of the present utility model is operated rotation and switches to torsion adjustment gear, in this state, the hook portion 22 of being located at enclosing cover 2 is adjusted and covers 3 pining down of internal diameter and in the groove 11 of retraction shell 1, and the torsion adjustment region T (seeing hatched example areas shown in Figure 3) that is constituted between hook portion 22 and the recess 31 is for being used for adjusting the angular range of outputting torsion; In other words, when rotation adjustment covers 3, adjustment slide block 48 will be driven along main shaft 44 and move axially, with compression or loosen the 3rd spring 47, when the 3rd spring 47 compressed degree are bigger, the torsion that is passed to output shaft 46 outputs via main shaft 44 is bigger, otherwise then little.

Rotation switches to torsion adjustment gear to Fig. 4 and impact is adjusted between the gear for demonstration output kenel switching device shifter of the present utility model is operated, in this state, hook portion 22 is just corresponding to groove 11, thereby make hook portion 22 embed to adjust by groove 11 by the elastic force of elastic portion 221 cover 3 recess 31, this state also is last gear of torsion adjustment gear.

Fig. 5 is for showing that the utility model switching device shifter is operated rotation and switches to the state of adjusting gear with hammering that impacts, operation at this state, when adjusting ring 3 and be from last position, torsion file position shown in Figure 4 rotation, the projection 32 that is positioned at circular groove groove 21 supports the projection 211 of sincere circular groove groove 21 and promotes enclosing cover 2 along with adjusting ring 3 rotation synchronously, behind enclosing cover 2 rotations one special angle, switching ring 52 shown in Figure 2 is driven displacement and makes internal tooth 521 be engaged in the external tooth 512 of hammering seat 51 by enclosing cover 2, but internal tooth 521 breaks away from the external tooth 431 of driving-disc 43, therefore, when driving-disc 43 drives main shaft 44 rotations, hammering seat 51 drives and switches ring 52 rotations, thereby utilize the hammering piece 461 of 511 pairs of output shafts 46 of projection of hammering seat 51 to hit, make the rotation output of output shaft 46 possess the impact effect of big torsion simultaneously.When switching ring 52 and be switched external tooth 431 engagements to its internal tooth 521 and driving-disc 43, then produce the impact function of less torsion.

Moreover, when enclosing cover 2 is driven in rotation, also can drives movable component 61 and move axially, and then adjustment activity ratchet 63 contacts with fixed ratchet wheel 64 along output shaft 46, produce the function that moves axially hammering to switch output shaft 46.

The above only is in order to explain preferred embodiment of the present utility model; be not that attempt is done any pro forma restriction to the utility model according to this; therefore; all have in that identical utility model spirit is following do relevant any modification of the present utility model or change, all must be included in the category of the utility model intention protection.

Claims (2)

1. export the kenel switching device shifter for one kind, include:

One shell, its wall has at least one groove, and this enclosure is provided with and drives and torsion guiding mechanism, impact guiding mechanism and hammering guiding mechanism;

One enclosing cover, being combined in the peripheral of this shell also can rotate relatively with this shell, the external diameter wall of described enclosing cover is provided with the hook portion of circular groove groove and corresponding described groove location, this hook portion can be with respect to this enclosing cover resilient movement, be provided with at least one projection in this circular groove groove, described enclosing cover and described impact guiding mechanism and hammering guiding mechanism produce continuous action relation;

One adjusts lid, be combined in the peripheral of this enclosing cover and can with this enclosing cover synchronously or relative rotation, the internal diameter of described adjustment lid is provided with the groove of corresponding described hook portion position, and the projection of the described circular groove groove of at least one correspondence position, described adjustment lid and described driving and torsion guiding mechanism, impact guiding mechanism produce continuous action relation, and this is adjusted lid and produces continuous action relation by the cooperation of described projection and this projection with described enclosing cover.

2. output kenel switching device shifter according to claim 1, wherein, described hook portion is incorporated into from one-body molded strip elastic portion one end that comes out of enclosing cover sidewall, make hook portion have elasticity and can and enclosing cover relatively move.

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