Self-tapping and self-drilling screw convenient to use
A screw and self-drilling technology, which is applied in the direction of screws, bolts, threaded fasteners, etc., can solve the problems of limited matching tools and single head of ordinary screws, and achieve the effect of convenient use, large bite force, and avoiding unusable
Inactive Publication Date: 2016-11-16
WUXI DONGHE METAL PROD
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Problems solved by technology
[0003] The purpose of the present invention is to provide an easy-to-use self-tapping self-drilling screw, which has the advantages of protecting the head and being suitable for a variety of tools, and solves the problem of single head of ordinary screws and limited matching tools
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[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0016] see Figure 1-2 , an easy-to-use self-tapping self-drilling screw, comprising a head 1, the upper surface of the head 1 is provided with a transverse groove 2 and a longitudinal groove 3, and the transverse groove 2 and the longitudinal groove 3 are perpendicular, and the transverse groove 2 and the longitudinal groove 3 all run through the upper surface of the head 1, and the horizontal groove 2 and the vertical groove 3 are c...
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The invention discloses a self-tapping and self-drilling screw convenient to use. The self-tapping and self-drilling screw convenient to use comprises a head. A transverse groove and a longitudinal groove are formed in the upper surface of the head. The transverse groove is perpendicular to the longitudinal groove. A side lug is fixedly connected to one side face of the head, and a rotary shaft is inserted into a through hole in the surface of the side lug in a connected mode. The two ends of the rotary shaft penetrate through the through hole in the surface of the side lug, are exposed and are connected with the two side faces of the inner wall of a fixing lug arranged on one side face of a cover body correspondingly. A clamping layer is fixedly connected to the lower surface of the head. A first fixing column is fixedly connected to the lower surface of the clamping layer. According to the self-tapping and self-drilling screw convenient to use, through the arrangement of the transverse groove and the longitudinal groove, the screw can be matched with a flat-head screwdriver; the transverse groove and the longitudinal groove are matched to form a cross-shaped groove, so that the screw is also suitable for a plum screwdriver; the clamping layer is arranged, so that the screw is suitable for various spanners; larger engagement force is provided by tooth grains around the clamping layer, so that the situation that when the screw is used, the screw and a spanner are likely to slide relatively, and consequentially the head of the screw is damaged is avoided.
Description
technical field [0001] The invention relates to the technical field of fixing components, in particular to an easy-to-use self-tapping self-drilling screw. Background technique [0002] Screws are generally metal structures, common in machinery, electrical appliances, and construction. Usually, screws are cylindrical, with threads on the surface, so that the screw can lock other objects, and the head has a larger diameter and is engraved with grooves. , to make the screw easy to use and apply pressure to it, while the self-tapping self-drilling screw is provided with a pointed tip or a tail saw at the end of the screw. The inner wall of the pressed object forms a thread that matches the thread on the surface of the screw; the self-tapping screw on the market is usually composed of a head, a shank, a thread and the end of the shank. Locking, it is convenient to apply force through the head, so that it can be installed and disassembled; however, the head of this kind of screw...
Claims
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IPC IPC(8): F16B23/00F16B25/10
CPCF16B23/0023F16B25/103
Inventor 王晓东
Owner WUXI DONGHE METAL PROD