Self-tapping and self-locking screw
A self-locking screw and screw technology, applied in the direction of screws, threaded fasteners, connecting components, etc., can solve the problems of waste of resources, time-consuming and laborious, falling off, etc., and achieve the effect of wide application range, good manufacturability, and high root strength.
Inactive Publication Date: 2020-12-25
山东贝克特智能科技有限公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] When the existing self-tapping and self-locking screws are installed on the position where the vibration and pressure change frequently, such as the fender fixed on the motorcycle by the self-tapping and self-locking screws, after a period of bumping, the existing self-tapping and self-locking screws Self-locking screws will have the problem of thread back and falling off; and the existing self-tapping and self-locking screws with strong fixing ability are mostly of non-detachable structure. When the fixing parts need maintenance, the removal of self-tapping and self-locking screws is difficult. Large, and the screws will be scrapped directly after being removed by force, and cannot be used anymore
It is time-consuming and labor-intensive, and it will also cause a waste of resources
Method used
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[0037] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0038] The embodiment of the present invention provides a self-tapping and self-locking screw, including a main screw 1, a secondary screw 2 and a ejector 3, for example, as figure 1 and figure 2 As shown; the outer surface of the main screw 1 is provided with external threads, the inside of the main screw 1 is provided with a threaded hole, and the central axis of the threaded hole coincides with the central axis of the main screw 1; the outer surface of the secondary screw 2 The surface is provided with external threads, and the secondary screw 2 can be screwed into the threaded hole opened on the main screw 1; the two ends of the ejector 3 that are close to each other are located in the threaded hole opened by the main screw 1 The two ends of...
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The invention relates to the technical field of fasteners, in particular to a self-tapping and self-locking screw which comprises a main screw, a secondary screw and push-out pieces. The main screw comprises a first screw head, a first screw body, a second screw body and a first screw tail; the secondary screw is movably mounted in the second screw body and can movably penetrate through the secondscrew body, the first screw body and the first screw head; the end, far away from the first screw head, of the secondary screw is movably connected with the push-out pieces; and the two ends, close to each other, of the push-out pieces are located in the second screw body, the two ends, away from each other, of the push-out pieces movably penetrate through the outer wall of the second screw body,and a connecting line of the two ends, away from each other, of the push-out pieces is perpendicular to the central axis of the second screw body. The self-tapping and self-locking screw is high in locking capacity, convenient to disassemble and capable of being repeatedly used.
Description
technical field [0001] The invention relates to the technical field of fasteners, in particular to a self-tapping and self-locking screw. Background technique [0002] Self-tapping and self-locking screws are screws with drill bits and self-tapping threads. When in use, a threaded prefabricated hole is partially drilled with a drill bit, and then the self-tapping thread is used to extrude the thread. [0003] When the existing self-tapping and self-locking screws are installed on the position where vibration and pressure change frequently, such as the fender fixed on the motorcycle by self-tapping and self-locking screws, after a period of bumping, the existing self-tapping and self-locking screws will Self-locking screws will have the problem of thread back and falling off; and the existing self-tapping and self-locking screws with strong fixing ability are mostly non-detachable structures. When the fixing parts need maintenance, the removal of self-tapping and self-lockin...
Claims
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Login to View More IPC IPC(8): F16B25/02
CPCF16B25/103
Inventor 不公告发明人
Owner 山东贝克特智能科技有限公司