CN2892387Y

CN2892387Y - Pressing bidirectional screwdriver

Info

Publication number: CN2892387Y
Application number: CN 200520107994
Authority: CN
Inventors: 甘元红
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-16
Filing date: 2005-05-16
Publication date: 2007-04-25
Anticipated expiration: 2015-05-16

Abstract

The utility model discloses a pressing bidirectional screwdriver. Press the inner cylinder, and the gear rack in the inner cylinder will drive the driving gear. The driving gear is connected with the speed-and-direction-changing gears, and one of the two speed-and-direction-changing gears is connected with the screw rod gear through adjusting the direction-changing rod. Screws can be easily screwed in or out through pressing the inner cylinder and adjusting the direction-changing rod.

Description

The two-way screwdriver of push type

Affiliated technical field

The utility model relates to a kind of hand controlling tools apparatus, goes up, unloads the screwdriver of screw, screw especially fast.

Background technology

At present, screwdriver commonly used is by the positive and negative rotation of hand, need pressure and two kinds of strength of torsion from physical mechanics, on, unload screw or screw, speed is slow, because pressure and torsion use uneven, often make the dislocation of the edge of a knife and groove when firmly rotating, the groove on damaged screws top causes screw to scrap, another defective of general manual screwdriver is can't removal only according to screwdriver for suitable holding screw, must be by other instruments, some relatively use electronic in the field of specialty, pneumatic screw driver, but cost is higher, and be subjected to the gentle influence of electricity when using, have certain defective.

Summary of the invention

Distribute uneven in order to overcome two kinds of strength of existing manual screw cutter, rotary speed is slow, damaged screws, can't pull down holding screw, and electronic, pneumatic screw driver cost height, can't popularize and use the deficiency that is subjected to other condition restriction, the utility model provides a kind of push type two-way screwdriver, this screwdriver is according to different designs, can improve rotary speed, or by gear graduation, equal dynamics reduces the anglec of rotation, the screw that removal is more fastening, can damaged screws, and can be forward and reverse adjustable, easy to be easy-to-use.

The technical scheme that its technical problem that solves the utility model adopts is: hand is pressed inner core and is produced pressure, with the ratch of inner core one to the lower slider time, drive the driving gear rotation on the shell inner fixed stand, the rotation of driving gear guiding speed and direction changing gear, thereby drive the rotation of lead screw gear, in interconnecting transmission, improve rotating speed; After inner core is depressed into the bottom, lift screwdriver, the spring at fixed mount top sets back inner core jack-up, can be recycled like this; When screw is unloaded in the needs counter-rotating, stir the tuning bar under the shell, what make the speed and direction changing gear slides to another side along axle, and another of change gear drives the lead screw gear and rotates, and realizes the process of reverse rotation; If the removal object is relatively more fragile, when pressing down inner core, with pointing the clamp holder of holding shell, as having an injection; The technical program can also strengthen the design of lead screw gear size by reducing driving gear, is exclusively used in the removal holding screw.

The beneficial effects of the utility model are: pressure is produced pressure and two kinds of strength of torsion by mechanical device, under the equal dynamics situation, accelerate rotation or reduce the anglec of rotation, steadily go up, unload screw fast, or the removal holding screw, by gear combination, simple in structure.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is a mechanical schematic diagram of the present utility model.

Fig. 2 is the structure chart of two-way first embodiment of screwdriver of push type.

Fig. 3 is the profile of second embodiment of the two-way screwdriver of push type.

1. ratch among the figure, 2. driving gear, 3. speed and direction changing gear, 4. tuning bar, 5. screwdriver rod, gear, 6. inner core, 7. shell, 8 screw tool bores, 9 tuning bar holes, 10. fixed screw, 11 ratch holes, 12. fixed screw holes, 13. ratch chutes, 14. top springs, 15 fixed mounts, 16 clamp holders.

The specific embodiment:

In Fig. 1, ratch (1) is connected with driving gear (2), and driving gear (2.) connects speed and direction changing gear (3) intermediate speed pinion, makes one of them gear of (3) both sides and vertical connection of screwdriver gear (5) by break-in bar (4).

Ratch in embodiment illustrated in fig. 2 (1) is an one with inner core (6), driving gear (2) speed and direction changing gear (3) tuning bar (4) screwdriver rack (5) top spring (14) all is fixed on the fixed mount (15), with the fixed mount parcel, rack (5) break-in bar (4) ratch (1) stretches out shell by hole, (8) (9) (11) respectively to shell (7) by fixed screw (10).

Clamp holder (16) and shell (7) one in the embodiment shown in fig. 3, shell (7) wraps tightly inner core (6), and inner core (6) wraps frame (15), and ratch (1) moves up and down along the chute (13) on the fixed mount (15).

Claims

1. two-way screwdriver of push type, ratch links to each other in proper order with driving gear, speed and direction changing gear, screwdriver gear on the shell inner fixed stand in the inner core in the enclosure, it is characterized in that: ratch is connected with driving gear in the inner core, driving gear connects the speed and direction changing gear, and the speed and direction changing gear is connected with the screwdriver gear is vertical.

2. the two-way screwdriver of push type according to claim 1 is characterized in that: ratch is an integral body in inner core and the inner core, and driving gear, speed and direction changing gear, screwdriver gear all are fixed on the fixed mount, and screwdriver rod, tuning bar stretch out shell.

3. the two-way screwdriver of push type according to claim 1, it is characterized in that: shell wraps tightly inner core, and inner core wraps frame.