Novel hole protecting device and use method thereof

Abstract

The invention relates to a novel hole protecting device and a use method thereof. The novel hole protecting device comprises a base, a rotary handle and a locking mechanism, wherein the base comprises an upper plug cover and a lower plug body; the plug cover can cover a plugging hole, and the plug body can be inserted into the plugging body; the rotary handle is arranged at the upper surface of the plug cover; the locking mechanism is arranged at the bottom part of the plug body, and comprises a torsion sheet and two locking sheets; the locking sheets are respectively hinged to the two ends of the torsion sheet, the side wall of the plug body is provided with locking openings which are matched with the locking sheets, and the distance between the upper edge of each locking opening and the lower surface of the plug cover is greater than or equal to the thickness of the plugging hole; the rotary handle is rigidly connected with the torsion sheet through a connecting rod; a support platform is arranged in the base and is positioned above the torsion sheet, a spring is fixedly arranged at one side of the torsion sheet, and one end of the spring is fixedly arranged on the torsion sheet, and is positioned between the end part of the torsion sheet and a connecting point of the connecting rod and the torsion sheet; the support platform is fixedly provided with two stops at the two sides of the torsion sheet, and the ends of the locking sheets just enter the locking openings when the torsion sheet is rotated to the stops in a bidirectional way. The novel hole protecting device has the advantages that the structure is simple, the safety and reliability are realized, the convenience in use is realized, and the easiness in falling is avoided.

Description

technical field [0001] The present invention relates to a novel hole guard and method of use thereof. Background technique [0002] With the rapid development of the high-speed rail business, the requirements for product quality and safety performance are also continuously increasing. In the manufacturing process of high-speed trains, the amount of welding and grinding is very large, which will form a large amount of aluminum scrap dust, and there are many types of parts in the production of existing trains, so it is easy to enter sundries in narrow spaces and cavities, such as aluminum alloy EMUs The corbel has many cavities. These cavities cannot be cleaned after debris enters, which seriously affects the operation safety of the EMU. In order to improve the manufacturing quality of trains, many links in the production process need to fully protect the products. [0003] The method that usually adopts at present is to utilize rubber pad to carry out plugging. In the con...

AI Technical Summary

Problems solved by technology

In this way, during the construction process, due to the frequent installation of small parts on the lower plane of the corbel, it is necessary to frequently transport and turn over the corbel, causing the rubber pad to often fall off

When the cavity of the corbel beam is facing up, paper tape is often used to paste it, resulting in a serious waste of paper tape, the work process is cumbersome, the workload is large, and the protection effect is poor, and it is difficult to clean up after the sundries enter; Self-weight leads to frequent falling off, which cannot be found in time after falling off, resulting in failure of protection and repeated work

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