CN203228157U - Multipurpose screwdriver - Google Patents

Abstract

Provided is a multipurpose screwdriver capable of leading driver rods to rotate. The lower portion of an upper driver rod is T-shaped and contacts with the slope of the upper portion of a lower driver rod to form a transition part for motion form transformation. Linear motion of the upper driver rod can be transformed to rotation of the lower driver rod so that torque is generated, and the multipurpose screwdriver achieves the effects of drilling objects or screwing and unscrewing nuts.

Description

multipurpose screwdriver

technical field

The utility model relates to a tool for rotating screws or drilling holes for objects, especially for screws that are difficult to unscrew and can be loosened smoothly. the

Background technique

Screws that are exposed to the outside all the year round will cause the connected object to stick to the screw due to rust, making it difficult to loosen and replace with a new screw. At present, there is no tool specially for unscrewing screws. the

Contents of the invention

In order to solve the problem that the nut is too tight or the nut is rusted and sticks to the connected object, the utility model provides a multipurpose screwdriver. The screwdriver can not only complete the common purpose of tightening screws, but also solve the problem that the screws are not easy to unscrew due to being too tight or rusted. In addition, since the screwdriver can generate a certain torque during operation, it can also be used as an impact cone to complete some simple drilling operations. the

The technical scheme adopted in the utility model is:

An inner pipe with external threads is arranged, and the upper tapered rod and the lower tapered rod are placed in the inner pipe so that they are on the same vertical line. A groove part is provided on the upper taper rod, and a positioning pin is horizontally arranged at an appropriate position of the inner tube. The rod moves up and down within a certain range. The lower part of the upper cone rod is made into a T-shape, and the contact with the inclined surface on the upper part of the lower cone rod becomes the transition part for the conversion of the motion form. The linear motion of the upper cone can be converted into the rotation of the lower cone, so as to generate torque and achieve the purpose of loosening the screw. In order to restore the rotated lower cone to the initial state, a spring is wound outside the lower cone to reset the cone. After reset, the screwdriver can work again, so repeatedly, when screwing down the outer pipe with internal thread, the upper taper rod is pressed by the outer pipe and moves vertically downwards until it is blocked by the positioning pin. At this time, the lower cone rod is also supported by the upper cone rod, and has reached the limit of the rotation position and will not rotate again. The screwdriver in this state is an ordinary screwdriver. the

Description of drawings

Figure 1 is a structural diagram of the interior of the multipurpose screwdriver. the

In the figure: 1. upper cone rod, 2. outer tube, 3. positioning pin, 4. inner tube, 5. spring, 6. lower cone rod, 7. cone head. the

Detailed ways

Now with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described and explained in detail. The accompanying drawings and the embodiments are all explanations of the utility model, rather than limitations of the utility model. the

A groove part is provided on the upper cone rod (1), and a positioning pin (3) is horizontally placed at an appropriate position of the inner tube (4). The positioning pin (3) is located in the groove of the upper cone rod (1). The up and down linear reciprocating sliding of the positioning pin in the groove completes the up and down motion of the upper taper rod (1) within a certain range. The lower part of the upper cone (1) is made into a T-shape, and the upper part of the lower cone (6) is made into a slope, and they are in contact with each other. When the upper cone (1) is knocked, the upper cone (1) is vertically downward Linear motion, the lower taper rod rotates counterclockwise to loosen the screw. The spring (5) wound outside the lower taper rod (6) is squeezed at this time to generate a torque that returns to the initial state and acts on the lower taper rod to reset the taper rod (1) (6). After resetting, the screwdriver can be knocked and rotated again, and so on. When screwing down the outer pipe (2) with internal thread, the upper taper rod (1) is pressed by the outer pipe (2) and moves vertically downward until it is blocked by the positioning pin (3). At this time, the lower taper rod (6) is also resisted by the upper taper rod (1), and has reached the limit of the rotation position and will not rotate again. The screwdriver in this state is an ordinary screwdriver. the

Claims (2)

1. multipurpose screwdriver, formed by epicone bar, outer tube, alignment pin, interior pipe, spring, following awl bar and conehead, it is characterized in that: female outer tube (2) and externally threaded interior pipe (4), horizontal setting one alignment pin (3) in interior pipe (4), epicone bar (1) and following awl bar (6) place interior pipe (4) to make it on same vertical curve, T shape is made in the bottom of epicone bar (1), contacts the transition portion that becomes the forms of motion conversion with the inclined-plane on following awl bar (6) top.

2. multipurpose screwdriver according to claim 1 is characterized in that: under bore bar (6) outside and twined spring (5), epicone bar (1) and following awl bar (6) can be resetted.

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