Anti-disassembly fastening structure
A fastening structure and anti-disassembly technology, which is applied in the direction of threaded fasteners, connecting components, pins, etc., can solve problems that affect the safety of products or devices, and the anti-disassembly effect is not ideal, so as to improve the anti-disassembly effect and improve safety sexual effect
Active Publication Date: 2021-08-10
嘉兴奥展实业有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problem that the anti-disassembly effect of the existing anti-disassembly fasteners is not ideal, thereby affecting the safety of products or devices, and to provide an anti-disassembly fastening structure that can effectively improve the fastening effect. The anti-disassembly effect of the parts, thereby improving the safety of the corresponding device
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[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0044] like figure 1 , figure 2 , image 3 As shown, a disassembly-proof fastening structure is used to connect at least two parts, specifically including a fastening screw 1 and a wrench 2. The fastening screw includes a screw column 11 with external threads, and a screw column integrally connected at the end of the screw column. Screw head 12, the screw head is circular, one of the parts is provided with a threaded hole adapted to the screw post, and the remaining parts are provided with corresponding through holes, and the screw post passes through the through hole to form a threaded connection with the threaded hole. Because the screw head is round, no matter what existing wrench (including special-shaped wrench) is used, it is impossible to transmit torque to the screw head to rotate the screw head, thereby ensuring the anti-disassembly...
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The invention discloses an anti-disassembly fastening structure. The structure comprises a fastening screw and a wrench, an assembly hole is formed in the round screw head end face of the fastening screw, a positioning ring is arranged at an opening of the assembly hole, a threaded guide section is arranged at the end, close to the positioning ring, of the assembly hole, and a rotating pin capable of being switched between a hidden position and an exposed position is arranged in the assembly hole. A rotating section is arranged at the upper end of the rotating pin, the cross section of the rotating section is in a regular polygon shape, a positioning hole matched with a screw head is formed in the end face of the wrench, a rotating hole is formed in the bottom face of the positioning hole, a barrel-shaped rotating sleeve is arranged in the rotating hole, an inner hole of the rotating sleeve is a regular polygon hole matched with the rotating section, and a magnetic attraction block capable of axially moving is arranged in the inner hole of the rotating sleeve. A stud which penetrates through the bottom wall of the rotating sleeve and is in threaded connection with the wrench is arranged on the magnetic attraction block, and an anti-rotation structure which can enable the rotating pin to axially move to abut against the guide section is arranged between the rotating pin and the assembly hole. The anti-disassembly effect of a fastener can be effectively improved, and therefore the safety of a corresponding device is improved.
Description
technical field [0001] The invention relates to the technical field of fasteners, in particular to an anti-disassembly fastening structure. Background technique [0002] Fasteners such as screws and bolts are commonly used standard parts in production and daily life. They are mainly used to connect more than two parts. They have the advantages of convenient connection, detachable and repeated installation and fixation. We know that for some equipment and devices in certain industries, such as high-speed rail, oil fields, and large pipeline valves, fasteners must not only play a role in fixed connection, but also have an anti-disassembly effect to prevent Man-made dismantling, or intentional damage. Since the screw is a standard part, it usually has an internal and external hexagonal head, a square head, etc., which facilitate the positioning and rotation of the wrench. It is realized by the matching unique wrench. [0003] For example, "a screw anti-dismantlement device, ...
Claims
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IPC IPC(8): F16B23/00F16B35/06F16B41/00B25B13/48
CPCF16B23/0069F16B35/06F16B41/005B25B13/48
Inventor 张彦武谢利峰王世华吴霜冰冯群洁石丽韩艳平陶正泽杨喜
Owner 嘉兴奥展实业有限公司