CN2386922Y - Posive and reverse rotation screwdriver structure - Google Patents

Abstract

The utility model provides a positive and reverse rotation screwdriver new structure which comprises a hollow body comprising an upper and a lower grab handle seats, wherein, a fine tooth part is arranged on an inner edge wall near a joint point of the lower grab handle seat, the angled end of a joint seat of a ratchet gear device in the upper and the lower grab handle seats is provided with one-way opened inlaid space which is pivoted with fine teeth engaged with the fine tooth part of the lower grab handle seat. A dual-head sleeve barrel can be fore and aft reversedly installed in the ratchet gear device, and both the front and the back of the dual-head sleeve barrel can be provided with dual-head screw driver heads to form the function of up-and-down reversed use of a positive and reverse ratchet gear screwdriver. The utility model has the advantages of no need of a change-over switch, no misoperation occurrence and convenient carrying.

Description

Just reversing the screwdriver new construction

The utility model relates to a kind of screwdriver of handling by turning handle, particularly a kind of screwdriver that ratchet effect is arranged.

It at present is the artificial expensive epoch, household electrical appliance, the water pipeline, the repairing of door and window or lockset or the like, please the professional handle as need, not only arrangement of time inconvenience, and charge is expensive, therefore it is in vogue to start maintenance mode voluntarily, all provide a cover hand-held tool in the family for oneself, electric drill, electric saw or the like, for oneself maintenance or making, screwdriver then is maintenance, one of basic tool of making, but its head of single screwdriver and handle fuse, during operation, need after hand reverses a bit of angle of screwdriver, let go and hand is replied former posture (former angle), again grip and reverse, so perseveration could unscrew screw or lock, move miscellaneous and time-consuming, for this reason, the someone improves design as Fig. 1,2,3, ratchet-type screwdriver shown in 4 utilizes switching device shifter 1 to control left and right sides banking pin 2 respectively, 3, just to reverse about switching ratchet 4, in other words, this structure can make as shown in Figure 3, will just reverse about switching ratchet 4, in other words, this structure can be cut position on the right with switching device shifter 1 for as shown in Figure 3, and screwdriver is reversed, and form idle running when just changeing, so when unscrewing screw, only need to grip the hand of screwdriver, with about the reversing of local angle, can produce the unidirectional screw that unscrews, or switching device shifter 1 cut the on the left side position as shown in Figure 4, screwdriver can just be changeed, and when reversing, form idle running, the hand of screwdriver will be gripped, with about the reversing of local angle, can produce unidirectional lock-screw, thereby operation is extremely convenient.But, this type of ratchet screwdriver can be found out at Fig. 2, the driver bit of planting in ratchet 4 front end sleeves 56 is two end different types (cross and words, can two end same types but be different size), can be inverted use, as be special as square or other sizes, need to carry in addition again, carry inconvenience thereby increase, and be depressed into switching device shifter 1 often accidentally in gripping, cause locking or the maloperation that unscrews, bring very big inconvenience to use.

The purpose of this utility model is that a kind of screwdriver new construction that just reversing will be provided, just reverses about it can reach easily and can not produce the maloperation that unscrews or lock, and easy to carry.

Utility model is achieved in that on one that lever apparatus is connected with lever apparatus once, and a ratchet device and a Two-head tube are placed in one, but double end sleeve back to front be enclosed in the ratchet device, the driver bit of double end all can be installed in the front and back of double end sleeve; Last lever apparatus, following lever apparatus are symmetrical hollow sleeve, be nested with mutually and be integrated, central authorities are respectively equipped with through hole about last lever apparatus, following lever apparatus, and the double end sleeve can be plugged in the through hole, is provided with the serration portion of dentation at the inner wall of the following nearly joint of lever apparatus; Ratchet device includes:

One plinth is triangular shape, be provided with the space that is embedded of hollow at the angle end, be embedded the space and be unidirectional opening, be provided with connecing of a plane at the open sides periphery that is embedded the space to face, be provided with the adapter of extending respectively up and down in plinth central authorities, two take over the groove that proximal port is provided with symmetry shape, establish a semicircle orifice between two grooves;

One activity ratchet surface is provided with and the serration of the serration portion of following lever apparatus engagement, be provided with columned articulated section in another opposite end of movable ratchet, and plane connecing to face, pivot can up be inserted in by the below, space that is embedded of plinth 31 in the articulated section, connects to face and is provided with a projection;

One spring is installed in connecing to the connecing between face of face and movable ratchet of plinth, movable ratchet connect the solid spring of projection limit on face.

At last lever, down the joint that joins of lever is provided with and is trapezoidal shape, and engaged with vibration high frequency heat sealing machine; Perimeter wall at last lever, the following nearly joint of lever is provided with the holding part of embossing; Double end sleeve two ends are respectively equipped with the hexagonal steamed bread of corn for the driver bit of installing double end, and can install different size or difformity simultaneously, form the driver bit that the double end sleeve has four kinds of specifications simultaneously, be provided with fin at the periphery of central authorities and the groove relative position place of adapter, can be embedded mutually, establish a steel ball in the semicircle orifice corresponding section of taking over, steel ball can be embedded in the semicircle orifice of taking over, the Two-head tube forms an end and protrudes, and in the other end is hidden in.

The utility model mat Two-head wound packages is established the driver bit of double end, can install different size or difformity (as cross, a word, square, special shape) simultaneously, needs other again carrying to reduce, and makes screwdriver easy to carry; Owing to establish groove and semicircle orifice in the adapter of ratchet device two ends, and be embedded the fin and the steel ball of double end sleeve respectively, make the double end sleeve be an end and protrude, in the other end is hidden in, grip when using, end can not expose interference to be used; The space that is embedded of plinth is open with one-sided formation, therefore make the movable ratchet can only be to single side activity, form the ratchet effect of single direction, otherwise as using, then make movable ratchet to the opposite side activity, form the ratchet effect of other direction, so just forming, reversing ratchet screwdriver, do not need to set up in addition change-over switch, eliminated to hold being depressed into change-over switch generation maloperation phenomenon often accidentally yet.

The concrete structure of utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is traditional ratchet-type screwdriver shaft mapping.

Fig. 2 is traditional ratchet-type screwdriver axonometric exploded view.

Fig. 3 is a 3-3 cutaway view among Fig. 1.

Fig. 4 is the action schematic diagram of Fig. 3.

Fig. 5 is that the utility model is just reversing screwdriver new construction axonometric exploded view.

Fig. 6 is that the utility model is just reversing screwdriver new construction axle survey constitutional diagram.

Fig. 7 is a 6-6 cutaway view among Fig. 6.

Fig. 8 is a 7-7 cutaway view among Fig. 6.

Fig. 9 is the practical illustration intention of the utility model.

With reference to Fig. 5,6,7,8,9, just reversing the screwdriver new construction consists predominantly of: on one, following lever apparatus 10,20, place, following lever apparatus 10, ratchet device 30 in 20, with a Two-head tube 40, but double end sleeve 40 back to front are packed in the ratchet device 30, and the driver bit 50 of double end all can be installed in the front and back of double end sleeve 40, on, following lever apparatus 10,20 are symmetrical hollow sleeve, cover postpone is a long oval egg type mutually, last, following lever apparatus 10,20 joints that join 11,21 establish and are trapezoidal shape, and engaged with vibration high frequency heat sealing machine, last, following lever apparatus 10,20 central authorities up and down are respectively equipped with through hole 12,22, in can being plugged on for double end sleeve 40, last, following lever apparatus 10,20 nearly joints 11,21 perimeter wall is provided with the holding part 13 of embossing, 23, be provided with the serration portion 24 of dentation at the following inner wall of lever apparatus 20 nearly joints 21.

Ratchet device 30 includes:

One plinth 31 is triangular shape, be embedded space 311 what the angle end was provided with hollow, be embedded space 311 and be unidirectional opening, be provided with connecing of a plane at the open sides left side periphery that is embedded space 311 to face 312, be provided with the adapter 313,314 of extending respectively up and down in plinth 31 central authorities, the top is taken over 313 and is taken over 314 longly than the below, and two take between groove 315, two grooves 315 that 313,314 proximal ports are provided with symmetry shape and are provided with a semicircle orifice 316;

One movable ratchet, 32 surfaces are provided with and the serration 321 of the serration portion of following lever apparatus 20 engagement, be provided with columned articulated section 322 in movable ratchet 32 another opposite ends, and plane connecing to face 323, pivot can up be inserted in by 311 belows, space that are embedded of plinth 31 in articulated section 322, connects to face 323 and is provided with a projection 324;

One spring 33 is installed in the connecing between face 323 to face 312 and movable ratchet 32 that connect of plinth 31, the projection 324 that connects on face 323 of the movable ratchet 32 of mat is solid with spring 33 limits, in order to avoid eject, spring 33 can have the compression of a past interior predeterminable range for movable ratchet 32, or the certain pressure of bearing responsibility outward.

40: two ends of one Two-head tube are respectively equipped with a hexagonal steamed bread of corn 41, driver bit 50 for the installing double end, can install different size or difformity simultaneously (as cross, one word, square, special shape), form the driver bit 50 that double end sleeve 40 has four kinds of specifications simultaneously, need to carry in addition again to reduce, and carry inconvenience, periphery in central authorities is provided with and takes over 313, the fin 42 of 314 groove 315 relative positions, can be embedded mutually, taking over 313, a steel ball 43 is established in 314 semicircle orifice 316 corresponding sections, and mat steel ball 43 is embedded is taking over 313, in 314 the semicircle orifice 316, can prevent that double end sleeve 40 from dropping out in taking over 313, outside 314.

During assembling, pivot up is inserted in admittedly from 311 belows, space that are embedded of plinth 31 in the articulated section 322 of three movable ratchets 32, owing to be embedded space 311 is to form open sides with the left side, therefore movable ratchet 32 can only be movable to the left, spring 33 is by solid the connecing to face 312 at plinth 31 and movable ratchet 32 of projection 324 limits, between 323, and mat spring 33 makes movable ratchet 32 have the compression of a past interior predeterminable range, or the certain pressure of bearing responsibility outward, again ratchet device 30 is installed in, following lever apparatus 10, in 20, just make the serration 321 of movable ratchet 32 be engaged on down the serration portion 24 of lever apparatus 20, the adapter 313 of ratchet device 30,314 and last, following lever apparatus 10,20 through hole 12,22 joints are same center, for two ends all device have the double end sleeve 40 of double-threaded screw cutter head 50 to be inserted in the adapter 313 of ratchet device 30 or take in 314, owing to take over 313, be provided with groove 315 and semicircle orifice 316 in 314, be embedded the fin 42 and the steel ball 43 of double end sleeve 40 respectively, making double end sleeve 40 be an end protrudes, and the other end be hidden in (as Fig. 7), make hold convenient can protruding dew and disturb use.

During use, owing to be embedded space 311 is to form open sides with the left side, therefore movable ratchet 32 can only be movable to the left, (turning right) can drive driver bit 50 and rotate (as Fig. 8) when the formation forward reversed, and during turn-back (turning left), but formation activity ratchet 32 is swung to the left, promptly so-called idle running, rotate and can't drive driver bit 50 thereupon, so mode makes the utility model As-Is for just changeing ratchet screwdriver, otherwise, with 40 dial-outs of double end sleeve, through hole 22 by following lever apparatus 20 is inserted solid (as Fig. 9), be and go up, following lever apparatus 10,20 put upside down when using, and (turning right) rotated for driving driver bit 50 when the formation forward reversed, and (turned left) when turn-back, but form drive driver bit 50 and rotate thereupon, thereby just form, reverse the peculiar function of ratchet screwdriver.

Claims (4)

1, a kind of screwdriver new construction that just reversing comprises lever, ratchet device and driver bit, it is characterized in that:

Lever apparatus on a, (10) is connected with following lever apparatus (20), a ratchet device (30) and a Two-head tube (40) are placed in one, double end sleeve (40) but back to front be enclosed in the ratchet device (30), the driver bit (50) of double end all can be installed in the front and back of double end sleeve (40);

B, last lever apparatus (10), following lever apparatus (20) are symmetrical hollow sleeve, be nested with mutually and be integrated, last lever apparatus (10), down lever apparatus (20) up and down central authorities be respectively equipped with through hole (12,22), double end sleeve (40) can be plugged in the through hole (12,22), is provided with the serration portion (24) of dentation at the inner wall of the nearly joint (21) of following lever apparatus (20);

C, ratchet device (30) include:

One plinth (31) is triangular shape, be embedded space (311) what the angle end was provided with hollow, be embedded space (311) and be unidirectional opening, be provided with connecing of a plane at the open sides periphery that is embedded space (311) to face (312), be provided with the adapter (313,314) of extending respectively up and down in plinth (31) central authorities, two take over the groove (315) that (313,314) proximal port is provided with symmetry shape, establish a semicircle orifice (316) between two grooves (315);

One movable ratchet (32) surface is provided with and the serration (321) of the serration portion (24) of following lever apparatus (20) engagement, be provided with columned articulated section (322) in another opposite end of movable ratchet (32), and plane connecing to face (323), articulated section (322) can be by the articulated section (322) of joint, and plane connecing to face (323), pivot can up be inserted in by the below, space (311) that is embedded of plinth (31) in articulated section (322), connects to face (323) and is provided with a projection (324);

One spring (33) is installed in connecing to the connecing between face (323) of face (312) and movable ratchet (32) of plinth (31), movable ratchet (32) connect the solid spring (33) of projection (324) limit on face (323).

2, screwdriver new construction according to claim 1 is characterized in that at last lever (10), down the joint (11,21) that joins of lever (20) is provided with and is trapezoidal shape, and is engaged with vibration high frequency heat sealing machine.

3, screwdriver new construction according to claim 1 is characterized in that being provided with the holding part (13,23) of embossing at the perimeter wall of last lever (10), the nearly joint (11,21) of following lever (20).

4, screwdriver new construction according to claim 1, it is characterized in that double end sleeve (40) two ends are respectively equipped with the hexagonal steamed bread of corn (41) for the driver bit (50) of installing double end, and can install different size or difformity simultaneously, form the driver bit (50) that double end sleeve (40) has four kinds of specifications simultaneously, periphery and adapter (313 in central authorities, 314) groove (315) relative position place is provided with fin (42), can be embedded mutually, taking over (313,315) steel ball (43) is established in semicircle orifice (316) corresponding section, steel ball (43) can be embedded is taking over (313,315) in the semicircle orifice (316), double end sleeve (40) forms an end and protrudes, and in the other end is hidden in.

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