Locking mechanism

Abstract

The present invention provides a locking mechanism, comprising a screw, and a fastening component, a top block, a first upper sliding block, a lower sliding block, a second upper sliding block, a screw block and a nut which are successively arranged on the screw in a penetrated way and cooperate with each other; wherein two ends of first upper sliding block and the second upper sliding block are both wedge-shaped surfaces with the angle of alpha, the end portion of the top block adjacent to the first upper sliding block, two ends of the lower sliding block, and the end portion of the screw block adjacent to the second upper sliding block are all wedge grooves having the angle of alpha, the wedge grooves are matched with the wedge-shaped surfaces; and the alpha is an acute angle. The locking mechanism of the present invention has the beneficial effects of simple structure, smooth cooperation of all portions, convenient use, assembling and disassembling, capacity of preventing overturn of a wedge block, having a self-aligning function, and excellent locking effect.

Description

technical field [0001] The invention belongs to the field of modularized cabinets, and in particular relates to a locking mechanism. Background technique [0002] The principle of the locking mechanism is to use the wedge-shaped device to make the displacement between the slider, the screw block and the fixed block along the direction of the inclined plane under the rotation of the screw, so that the printed board, the heat conduction strip and the chassis wall are effectively restricted. It is convenient for disassembly, and it is an essential part for the modular design system. The main function is to prevent the PCB board (printed board) and the module from being damaged in the environment of high impact and vibration, so as to improve the reliability and provide a heat dissipation channel from the board, the module to the chassis. It is mainly used for liquid-cooled chassis, ATR chassis, VPX reinforced shielding system chassis, CPCI shielded chassis and other modules an...

AI Technical Summary

Problems solved by technology

[0004] After years of production practice and continuous optimization and improvement of the processing technology, our company found the following problems in the production, test and use of the above locking mechanism: the thread on the aluminum alloy parts is easy to rot; the five-joint locking The mechanism is easy to get stuck; the screw-in locking mechanism is inconvenient to operate when it is pre-tightened (because when the fixed block is fixed on the module or board, the upper sliders, screw blocks and top blocks at both ends are not in the pre-tightened state. These parts will rotate freely along the screw axis, and will be stuck during pre-tightening, and cannot be locked normally)

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