CN2214274Y

CN2214274Y - Multifunctional screwdriver

Info

Publication number: CN2214274Y
Application number: CN 94213809
Authority: CN
Inventors: 郝振军
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-30
Filing date: 1994-05-30
Publication date: 1995-12-06
Anticipated expiration: 2004-05-30

Abstract

The utility model relates to a multifunctional screwdriver, belonging to a hardware tool, comprising an operating lever 15 and a connecting nut 14. The utility model is characterized in that a windlass 6 is arranged in a grabbing handle housing 2; the windlass 6 is wound with a pull rope 4; the windlass 6 is connected with a rear cover 1 by a rubber band 3; the windlass 6 is welded or separated with a main shaft 11 by a jaw clutch; the main shaft 11 is connected with the operating lever 15 by the connecting nut 14. The utility model makes up for the low efficiency of a hand screwing screwdriver and overcomes the bulkiness of an electric screw driver. The multifunctional screwdriver has the advantages of labor saving, convenience and high efficiency. The multifunctional screwdriver can be used for people's daily life or the maintenance operation of electric apparatus.

Description

Multifunctional screwdriver

The utility model relates to a kind of hardware ﹠ tools that is used for the installing/dismounting screw and can holes.

Existing be used for the screwdriver (also claiming screwdriver) that the installation or removal screw is used, common hand-wring type is arranged, its shortcoming is an effort, and rotary speed is slow, effect is low.Another kind is DYN dynamic, though effect is higher, noise is big, and volume is big, and is heavy and be with long cable very inconvenient.

The purpose of this utility model provides a kind of have greater efficiency and convenient and strength-saving hand pulling type multifunctional screw driver.

The purpose of this utility model is achieved in that it comprises working beam, attaching nut, it is characterized in that, one rumble wheel is housed in the lever shell, be wound with stay cord on the rumble wheel, be connected by rubber band between rumble wheel and the bonnet, the rumble wheel is engaged by jaw clutch with main shaft or separates, and main shaft is connected by the attaching nut with working beam.

The utility model can also following manner be realized: the formation of jaw clutch is, rumble is taken turns an end and is had a hole, initiatively gear wheel is installed on the step surface in the hole, there is the keyway on a fin key and the passive gear wheel to be slidingly matched on the main shaft, spring, passive gear wheel are sleeved on the main shaft, and initiatively the tooth of gear wheel, passive gear wheel is a zigzag.

The center is equipped with a steel ball between main shaft and rumble wheel bottom surface, hole; One flying wheel is housed on the main shaft.

Position, stay cord hole is equipped with a pulley on the lever shell; Have a window with stay cord hole relative position.

Working beam can be the screwdriver rod that is used for the installing/dismounting screw, the drilling rod that is used to hole or triangular pyramid bar.

The utlity model has following advantage: remedied the poor efficiency of hand-wring type screwdriver, overcome the heaviness of electric screw driver, had laborsaving, convenient, advantage efficiently.

Below in conjunction with accompanying drawing the utility model is elaborated:

Fig. 1: the utility model overall structure schematic diagram.

Fig. 2: bonnet; Fig. 3: lever shell; The A of Fig. 4: Fig. 3 is to view; Fig. 5: pulley--screw; Fig. 6: rumble wheel; The B of Fig. 7: Fig. 6 is to view; Fig. 8: steel ball; Fig. 9: active gear wheel; The C of Figure 10: Fig. 9 is to view; Figure 11: passive gear wheel; The D of Figure 12: Figure 11 is to view; Figure 13: spring; Figure 14: main shaft; Figure 15: flying wheel; Figure 16: nut; Figure 17: attaching nut; Figure 18: working beam;

Figure 19: the utility model outline drawing

15 1 of working beams are the working end, it can be the normal screws cutter head, Philip's head screw cutter head, drill bit or triangular pyramid are first-class, and other end band two ear keys are so that cooperate with attaching nut's 14 bundle mouths, and working beam can be selected for use by the different a plurality of confessions that are equipped with the different operating termination of purposes.

What link to each other with attaching nut's 14 other ends is main shaft 11, and its end has screw, and the other end is with spring 10, passive gear wheel 9, and passive gear wheel 9 can endwisely slip along the fin key on the main shaft 11.The rumble relative with main shaft taken turns 6 end face centers and had circular hole, is equipped with initiatively gear wheel 8 in the hole on the step surface.Main shaft 11 and the spring 10, the passive gear wheel 9 that are enclosed within above it are inserted in the hole of rumble wheel 6.Initiatively gear wheel 8, passive gear wheel 9, spring 10 are formed jaw clutch.The gear wheel teeth patterning is a zigzag, so can only one way engagement rotate, skips and just compress the spring cunning during backward rotation.So use as screwdriver, need to be equipped with holding screw with two of dismounting screw, two difference only is the direction of rotation difference of gear wheel tooth, promptly one be clockwise, one is counterclockwise.

Take turns at rumble that the center is equipped with a steel ball 7 between bottom surface, 6 hole and main shaft end face, effect is Ding La and that main shaft is rotated is more flexible.Also be fixed with a flying wheel 12 on main shaft, fixed form is that the contact-making surface with flying wheel and main shaft all is polished into matsurface, and is fixing by nut 13 then.The effect one of flying wheel 12 is to make full use of inertia force, the 2nd, when needs are manual, can directly twist flying wheel with fastening or loosening screw with hand.

The other end of rumble wheel 6 has a hook, fastens rubber band 3 on the hook, and rubber band 3 other ends tie up on the bonnet 1.On the cylindrical of rumble wheel 6, be wound with nylon withdrawal line 4, stay cord 4 one ends tie up on the pin of rumble wheel cylindrical breach, the other end extracts from lever shell 2 stay cord holes, the place is equipped with the wearing and tearing that a pulley 5 leads and avoids stay cord 4 in lever shell 2 stay cord holes, position, opposite, stay cord hole at lever shell 2 has a window, so that observe the winding situation of stay cord 4 on rumble wheel 6 of adjusting.Lever shell 2 is dimidiation vertically, and the connection situation is between the two halves, and rumble is taken turns an end by punching on its flange, then with bolted together; Bonnet one end is lived by bonnet outer rim bundle, and bonnet 1 also has castellated matching part to carry out the tooth scarf with lever shell 2 to close, rotate with the rubber band 3 that tightens to prevent bonnet 1; Be respectively equipped with latch and jack at two halves lever shell middle part, be seated mutually, thereby make lever shell 2 form a monolithic case fashionable.

Method of operating: with driver bit (or drill bit) alignment work position, one holds and pushes against the lever shell, another pulls moving stay cord and makes the rotation of rumble wheel, and rubber band is tightened, the passive gear wheel engagement on active gear wheel in the rumble wheel hole and the main shaft, drive main axis rotation, because of main shaft is connected as one by attaching nut and working beam, so fastening (or loosening) screw or drill tasks finished in the working beam rotation, after loosing one's grip, be rewound on the rumble wheel at stay cord under the effect of rubber band.When loosing one's grip back rumble wheel inversion recovery, because the transmission of jaw clutch one way engagement, passive gear wheel and main shaft can reverse rotations.Work on as need, then spur stay cord again and repeat above operating process and get final product.

Claims

1, a kind of multifunctional screw driver, comprise working beam (15), attaching nut (14), it is characterized in that: rumble wheel (6) is housed in the lever shell (2), be wound with stay cord (4) on the rumble wheel (6), be connected by rubber band (3) between rumble wheel (6) and the bonnet (1), rumble wheel (6) is engaged by jaw clutch with main shaft (11) or separates, and main shaft (11) is connected by attaching nut (14) with working beam (15).

2, multifunctional screw driver according to claim 1, it is characterized in that: the formation of jaw clutch is, rumble wheel (6) one ends have a hole, initiatively gear wheel (8) is installed on the step surface in the hole, have the keyway on a fin key and the passive gear wheel (9) to be slidingly matched on the main shaft (11), spring (10), passive gear wheel (9) are sleeved on the main shaft (11); Initiatively the tooth of gear wheel (8), passive gear wheel (9) is a zigzag.

3, multifunctional screw driver according to claim 1 and 2 is characterized in that: the center is equipped with a steel ball (7) between main shaft (11) and rumble wheel (6) bottom surface, hole; One flying wheel (12) is housed on the main shaft (11).

4, multifunctional screw driver according to claim 3 is characterized in that: lever shell (2) is gone up position, stay cord hole and is equipped with a pulley (5), has a window with stay cord hole relative position.

5, multifunctional screw driver according to claim 4 is characterized in that: working beam (15) can be the screwdriver rod that is used for the installing/dismounting screw, the drilling rod that is used to hole or triangular pyramid bar.