Self-tapping and locking type thin firm screw
A screw and locking technology, which is applied in the direction of locking fasteners, screws, threaded fasteners, etc., can solve the problems of slow tapping speed, low production efficiency, and easy slippage, etc., to increase the fastening effect, Guarantee the locking effect and prevent dislocation and loosening
Active Publication Date: 2020-08-25
嘉兴宏诚精工科技股份有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
In actual work, sometimes it is necessary to perform screwing operations on thinner plates. In order to ensure the quality of the connection, the more turns of the screw teeth that are in direct contact with the plate, the stronger the connection between the screw and the plate. For smaller screws, the tapping speed will be very slow, resulting in low production efficiency. If you choose a thread with a larger pitch, although the speed is faster, it will easily occur because some tapping ends are thin plate parts. Silk phenomenon
Method used
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Embodiment Construction
[0018] Referring to the accompanying drawings, the present invention is a self-tapping locking type thin solid screw, including a screw head 1, a stud 2 and a locking washer 3, the bottom of the screw head 1 is provided with a stud 2, and the stud 2 It also includes a locking section 4 and a self-tapping section 5, the self-tapping section 5 is located at the right end of the locking section 4, the bottom of the locking washer 3 is provided with a helical elastic locking sleeve 31, and the elastic locking The tight sleeve 31 cooperates with the threads of the locking section 4 to fix the locking washer 3 on the bottom of the screw head 1 .
[0019] Wherein, the top of the screw head 1 is provided with a screw loading and unloading hole 11, the screw loading and unloading hole 11 is a cross hole, and the bottom surface of the screw head 1 is provided with some anti-slip protrusions 12, and the anti-slip protrusions 12 are along the The center points of the bottom surface of the...
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The invention discloses a self-tapping and locking type thin firm screw which comprises a screw head, a stud and a locking gasket. The stud is arranged at the bottom of the screw head and further comprises a locking segment and a self-tapping segment. The self-tapping segment is located at the right end of the locking segment. A spiral elastic locking sleeve is arranged at the bottom of the locking gasket. The spiral elastic sleeve cooperates with a thread of the locking segment to fix the locking gasket to the bottom of the screw head. Compared with the prior art, through the manner of arranging a tapping segment and a fastening segment, the screw has the excellent performance of rapid tapping and firm locking; and in addition, the locking gasket can greatly improve the locking force of the fastening segment, and connecting stability and reliability of the screw can be guaranteed for a long time.
Description
【Technical field】 [0001] The invention relates to the technical field of screws, in particular to the technical field of self-tapping and locking thin-set screws. 【Background technique】 [0002] Screws are commonly used fasteners, which are widely used in many fields because of their advantages such as self-locking, simple manufacture, mass production, low cost, and interchangeability. The screw is composed of two parts: a nut connected to each other and a screw with a tip. The screw part is provided with external threads. During the rotation of the screw, its threads will tap into the threaded bottom hole on the workpiece under the action of pressure. , and use the external thread on the screw part to realize the self-locking of the screw in the axial direction. In actual work, sometimes it is necessary to perform screwing operations on thinner plates. In order to ensure the quality of the connection, the more turns of the screw teeth that are in direct contact with the pl...
Claims
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Login to View More IPC IPC(8): F16B25/00F16B39/26
CPCF16B25/0005F16B25/0057F16B39/26
Inventor 潘海明严君谢祝萍郭建光陶春伟
Owner 嘉兴宏诚精工科技股份有限公司