CN202367662U - Anti-pricking screw driver - Google Patents

Abstract

The utility model relates to an anti-pricking screw driver and relates to the field of screw driver construction. The screw driver is a commonly-used tool, users usually use the left hand to support a bolt and use the right hand to fasten the bolt, and slippage of a knife edge of the screw driver is usually occurred to harm hands. The technical scheme is that screw threads are designed on a metal rod of the screw driver, a sleeve is sleeved on the metal rod, and the knife edge of the screw driver does not expose out of the sleeve. The knife edge of the screw driver does not expose out, and the knife edge cannot contact a finger during use, so that the knife edge cannot harm the hands. The sleeve can sleeve the bolt to guarantee that directions of the screw driver and the bolt are same, and the sleeve in suitable size can prevent the knife edge of the screw driver to slide off from the bolt.

Description

The anti-hand screwdriver that stabs

Technical field

The anti-stamp of the utility model hand screwdriver relates to the structure field of screwdriver.

Background technology

Screwdriver is a kind of instrument commonly used, but general in use left hand buttresses screw, and slippage often takes place for right hand handle trip bolt, the screwdriver edge of a knife comes to harm hand.

Summary of the invention

For overcoming the problem that may hinder hand in the screwdriver use, the utility model designs a kind of new structure makes the edge of a knife of screwdriver in use not contact in one's hands.

The utility model solves the technical scheme that its technical problem adopted: on the Metallic rod of screwdriver, design screw thread, on a jacket casing, make the edge of a knife of screwdriver not expose sleeve.

The beneficial effect of the utility model is: because the screwdriver edge of a knife does not expose, the edge of a knife is in one's hands with regard to not contacting during use, thereby can the adversary not damage; Sleeve can entangle screw, guarantees that screwdriver is consistent with the direction of screw, and sizeable sleeve can be avoided the landing from the screw of the screwdriver edge of a knife.

Description of drawings

Fig. 1 is the anti-hand screwdriver sketch map that stabs.

Wherein, 1, the screwdriver edge of a knife; 2, screw thread, 3, handle, 4, sleeve.

The specific embodiment

The screw thread 2 of design projection on the Metallic rod of screwdriver, screw thread 2 is than the high 1-2mm of Metallic rod; Design a threaded sleeve 4 in inside that is made up of rigid plastics, sleeve 4 is inserted in screwdriver from the screwdriver edge of a knife 1, and turnbarrel 4 changes the degree of depth that sleeve screws in.When living screw, turnbarrel makes in the screwdriver edge of a knife 1 indentation sleeve 4, lets the part sleeve entangle screw as hand steered, guarantees that the direction of screw and screwdriver is consistent and guarantee that the screwdriver edge of a knife can be from landing on the screw; When screw is soon screwed, no longer need use hand steered firmly screw this moment, the right hand is held the handle of screwdriver, and left hand turnbarrel 4 exposes the screwdriver edge of a knife 1, and screw is screwed.

Claims (1)

1. the anti-hand screwdriver that stabs of the utility model relates to the improvement of screwdriver structure, it is characterized in that: the screw thread (2) of design projection on the Metallic rod of screwdriver, and screw thread (2) is than the high 1-2mm of Metallic rod; The threaded sleeve in inside (4) that constitutes by rigid plastics, sleeve (4) with the screwdriver edge of a knife (1) thus cover and avoid hindering hand.

Images