Locking device and high-speed train equipment ceiling board

Abstract

The invention provides a locking device and a high-speed train equipment ceiling board. The locking device comprises a sleeve and a clamping spring; a gear structure is arranged on the inner wall of the sleeve, and the sleeve is fixedly arranged on a part to be connected; the clamping spring comprises a soleplate and two lateral plates, wherein the two lateral plates are fixedly arranged on the opposite sides of the soleplate; a positioning hole is arranged on the soleplate, the two lateral plates are respectively provided with an outward hem, and each outward hem is provided with a zigzag structure; and the clamping spring is inserted into the sleeve, so that the zigzag structure and the gear structure are engaged, and a fastening device on the part to be connected is inserted into the positioning hole. Through compacting the two lateral plates of the clamping spring and inserting the clamping spring into the sleeve, the zigzag structure of the clamping spring and the gear structure in the sleeve are engaged together, the fastening device is simultaneously inserted into the positioning hole of the clamping spring, and the clamping spring can not randomly rotate after the zigzag structure and the gear structure are engaged, thereby limiting the random rotation of the fastening device through the positioning hole, and improving the reliability of the fastening device.

Description

technical field [0001] The embodiments of the present invention relate to mechanical equipment, in particular to an anti-loosening device and a bottom plate of equipment cabins for high-speed trains. Background technique [0002] At present, the bottom plate of the equipment cabin used on the high-speed train is usually fixed on the car body of the high-speed train by fastening devices (such as bolts or nuts), thereby forming the equipment cabin. Due to the high speed of the high-speed train, the high-speed train will generate greater vibration during operation, which will easily cause the bolts to loosen. Therefore, it is necessary to perform anti-loosening treatment on the bolts. [0003] In the prior art, in order to realize the anti-loosening treatment of the bolts, the bolts usually adopt T-shaped threads. Since the T-shaped threads have a self-locking function, when the bottom plate of the equipment cabin is fixed on the vehicle body through the bolts, the bolts will ...

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Problems solved by technology

[0005] The embodiment of the present invention provides an anti-loosening device and the equipment cabin bottom plate for high-speed trains, which are used to s

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