CN205928433U - Automatic screwdriver - Google Patents

Abstract

The utility model relates to an automatic screwdriver, it includes screw handle of a knife, screw cutter arbor, guide arm, spring, bevel gear and bayonet cross -shaped tool bit, a part of inside of placing the screw handle of a knife in of guide arm, the spring housing is on the outer end of guide arm, and guide arm and bevel gear form crank and rocker mechanism, and the swing through the guide arm makes bevel gear rotate, and screw cutter arbor upper end links to each other with bevel gear, and places the inside of screw handle of a knife in, and the lower extreme of screw cutter arbor links to each other with bayonet cross -shaped tool bit. The utility model discloses install easy and simple to handlely, do not need consumption of electric energy during the use, and the volume matches with ordinary screwdriver.

Description

Automatic screwdriver

Technical field

The technical solution of the utility model is related to five metals apparatus, particularly a kind of automatic screwdriver.

Background technology

Traditional screwdriver generally comprises the screwdriver handle being fixed together and screwdriver rod, screwdriver rod end be provided with The driver bit that screw afterbody matches, traditional screwdriver can lead to use in the repetitive operation of screw-in and mechanization when screwing out Person is weak, and when running into different types of screw in addition it is also necessary to change screwdriver.Although the automatic screwdriver on market solves The problems referred to above, but be mostly by electro-motor drive screwdriver rod rotation, using when not only need energising to keep on the go, And volume is more than normal screws knife, leads to limited by its range.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of new automatic screwdriver, this Automatic screwdriver does not need to charge, and small volume, solve existing automatic screwdriver using when need energising to keep on the go, and Bulky problem.

The utility model solves this technical problem and be employed technical scheme comprise that：Automatic screwdriver, it include screwdriver handle, Screwdriver rod, guide rod, spring, bevel gear and plug-in type cross cutter head, a part for guide rod is placed in the inside of screwdriver handle, bullet Spring is enclosed within the outer end of guide rod, and the inner of guide rod connects bevel gear, and screwdriver rod upper end is connected with bevel gear, and is placed in screwdriver The inside of handle, the lower end of screwdriver rod is connected with plug-in type cross cutter head.

Further, the outer wall of described screwdriver handle is provided with for anti-skidding concavo-convex alternate lines.

Further, the upper end of described screwdriver rod connect with bevel gear core wheel and together be placed in inside screwdriver handle, its Lower end is a word cutter head, and lower end is made by magnetic material, and lower end is connected with plug-in type cross cutter head.

Further, described guide rod and bevel gear form crank and rocker mechanism, so that bevel gear is turned by the swing of guide rod Dynamic.

Further, described bevel gear is standard straight bevel gear.

Further, the counterbore being matched with screwdriver rod bottom is arranged at described plug-in type cross cutter head top.

Above-mentioned new automatic screwdriver, used unit is known to those skilled in the art, all by public The approach known obtains, and described component connecting method is that those skilled in the art can grasp.

The beneficial effects of the utility model are, compared with prior art, the outstanding feature of the utility model automatic screwdriver Be with marked improvement, using the swing of guide rod make bevel gear rotate, bevel gear again with another bevel gear engaged transmission, thus So that screwdriver rod is rotated, this device is easy and simple to handle, do not need during use to consume electric energy, and volume is suitable with normal screws knife.

Brief description

Fig. 1 is the structural representation of the utility model automatic screwdriver；

Fig. 2 is the right view of left side guide rod and the part of left bevel gear；

Fig. 3 is the part left view of right side guide rod and right side bevel gear；

Reference：1st, rod end cap, 2, spring, 3, guide rod A, 4, bearing A, 5, guide rod B, 6, screwdriver handle, 7, bearing pin, 8, Bevel gear A, 9, support, 10, bearing B, 11, bevel gear B, 12, smooth support base, 13, screwdriver rod, 14, plug-in type ten Word cutter head.

Specific embodiment

With embodiment, the utility model is further described below in conjunction with the accompanying drawings.

As shown in Figure 1 to Figure 3, the utility model automatic screwdriver mainly include screwdriver handle 6, screwdriver rod 13, guide rod, Spring 2, bevel gear and plug-in type cross cutter head 14, screwdriver handle 6 outer wall is provided with for anti-skidding concavo-convex alternate lines, The upper end rod end cap 1 of guide rod A3, be connected with guide rod A3 below rod end cap 1 is spring 2, and spring 2 is in rod end cap 1 and spiral shell Silk handle of a knife 6 be connected centre, guide rod A3 lower end is inserted in screwdriver handle 6, is guide rod B5 below guide rod A3, guide rod A3 with lead Bar B5 passes through bearing A4 and is connected, and guide rod B5 is connected with bevel gear A8 by bearing pin 7, and guide rod forms crank rocker machine with bevel gear Structure, makes bevel gear rotate, bevel gear A8 to be supported by the support 9 being connected on screwdriver handle 6, support by the swing of guide rod There is bearing B10, bevel gear A8 can rotate on support 9 on 9.The downside of bevel gear A8 and bevel gear B11 engaged transmission, thus Dynamic bevel gear B11 is carried to rotate, bevel gear B11 is supported by smooth support base 12, and the core wheel of bevel gear B11 and screwdriver Bar 13 links together, and is a word cutter head in the end of screwdriver rod 13, the end of screwdriver rod 13 just can be with plug-in type ten The upper recess of word cutter head 14 connects, and screwdriver rod 13 lower end is made by magnetic material, can make plug-in type cross cutter head 14 It is connected even closer with screwdriver rod 13, and can make in stubborn screw, screw is not in the phenomenon dropping.

Full symmetric about the utility model automatic screwdriver, when pressing the rod end cap 1 shown in Fig. 2, bevel gear A8 will Band dynamic bevel gear B11 rotates clockwise, thus driving screwdriver rod 13 to rotate clockwise, so can be by screw-driving.When pressing During lower rod end cap 1 shown in Fig. 3, bevel gear A8 will carry dynamic bevel gear B11 to rotate counterclockwise, thus driving screwdriver rod 13 inverse time Pin rotates, and so can unscrew screw.

Embodiment 1

When user needs to tighten or unscrew screw, if the screw running into is plus screw, can directly take this certainly Dynamic screwdriver is tightened to screw or is unscrewed, when the screw running into is minus screw, then can be by plug-in type cross cutter head 14 take off, and just screw can be tightened or unscrew by this automatic screwdriver after taking off plug-in type cross cutter head 14；Using When this automatic screwdriver carries out tightening operation to screw, after good to cutter head and screw mates, constantly press left side with thumb Rod end cap 1, the guide rod band dynamic bevel gear A8 in left side rotates, and bevel gear A8 band dynamic bevel gear B11 rotates clockwise, thus bevel gear B11 drives screwdriver rod 13 to rotate clockwise, and to make screw-driving.Using this automatic screwdriver, screw is being carried out unscrewing operation When, the rod end cap 1 on right side, the guide rod band dynamic bevel gear A8 on right side after good to cutter head and screw mates, is constantly pressed with thumb Rotate, bevel gear A8 band dynamic bevel gear B11 rotates counterclockwise, thus bevel gear B11 drives screwdriver rod 13 to rotate counterclockwise, comes Screw is made to unscrew.

Technology contents of the present utility model and technical characteristic have revealed that as above, but those of ordinary skill in the art still may be used A variety of replacements without departing substantially from the utility model spirit and modification can be made based on teaching of the present utility model and announcement, therefore, this Utility model protection scope should be not limited to the content disclosed in embodiment, and should include various without departing substantially from replacement of the present utility model And modify, and covered by present patent application claim.

Claims (6)

1. a kind of automatic screwdriver it is characterised in that：Including screwdriver handle, screwdriver rod, guide rod, spring, bevel gear and insert Enter formula cross cutter head, a part for guide rod is placed in the inside of screwdriver handle, on the outer end of guide rod, the inner of guide rod connects spring housing Connect bevel gear, screwdriver rod upper end is connected with bevel gear, and be placed in the inside of screwdriver handle, the lower end of screwdriver rod and plug-in type Cross cutter head is connected.

2. automatic screwdriver according to claim 1 it is characterised in that：The outer wall of described screwdriver handle is provided with for preventing Sliding concavo-convex alternate lines.

3. automatic screwdriver according to claim 1 it is characterised in that：The upper end of described screwdriver rod and bevel gear core wheel Connect and be placed in together inside screwdriver handle, its lower end is a word cutter head, and lower end made by magnetic material, lower end and plug-in type ten Word cutter head is connected.

4. automatic screwdriver according to claim 1 it is characterised in that：Described guide rod forms crank rocker machine with bevel gear Structure, makes bevel gear rotate by the swing of guide rod.

5. automatic screwdriver according to claim 1 it is characterised in that：Described bevel gear is standard straight bevel gear.

6. automatic screwdriver according to claim 1 it is characterised in that：Described plug-in type cross cutter head top has and screw The counterbore matching in knife bar bottom.