Desk capable of rapidly rising and falling

Abstract

The invention discloses a desk capable of rapidly rising and falling. The desk comprises a desktop (1), a desk box (2), a desk leg upper section (3), a desk leg lower section (4) and an adjusting rod (5). The desk is characterized in that a plurality of rectangular through holes (6) are formed in the desk leg upper section at intervals, a long hole (7) with the size smaller than the sizes of the rectangular through holes is formed between every two adjacent rectangular through holes for communicating the rectangular through holes. Protruding through holes (8) are formed in the desk leg lower section. The adjusting rod is a cuboid. The two sides, close to the ends, of the adjusting rod are respectively provided with two notches (11). Guide blocks (9) are fixed to the positions, close to the ends, of the adjusting rod. Each of the two ends of the adjusting rod penetrates through the corresponding through hole in the desk leg upper section and the corresponding protruding hole in the desk leg lower section. The height of the desk can be adjusted only by moving the adjusting rod leftward and rightward, the guide blocks are always located in the long holes, and therefore guiding is convenient during adjustment, shaking can be prevented, production cost is low, and the aims of the desk can be thoroughly achieved.

Description

technical field [0001] The invention relates to a desk, in particular to a fast lifting desk. Background technique [0002] As we all know, most of the desks in primary and secondary schools can be raised and lowered, but the lifting is very difficult. Because the table legs of the desk are divided into upper and lower sections, the two table legs are fixed firmly with four bolts. When lifting, the bolts must be pulled out. After raising or lowering, the bolts are used to fix them again, which is labor-intensive and time-consuming. According to investigations, all schools have not organized workers to go lifting. How to solve the problem of rapid lifting of desks, hundreds of desk lifting companies across the country have been trying to find a way to solve this problem for decades. Chinese patent 201210431002.7 discloses a fast lifting student desk, which is provided with a series of connected round holes on the upper leg of the table, the round holes are connected by a th...

AI Technical Summary

Problems solved by technology

But it still has the disadvantages that it takes a long time to adjust, the upper and lower parts of the table legs are easy to shake, and the production cost is relatively high.

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