Shear-type teacher's desk adopting synchronous belt for lifting adjustment

Abstract

The invention discloses a shear-type teacher's desk adopting a synchronous belt for lifting adjustment. The shear-type teacher's desk adopting the synchronous belt for lifting adjustment comprises a desk top and two shear-type extendable rods arranged below the desk top. The top ends of the two shear-type extendable rods are inlaid into a groove formed in the bottom end of the desk top, the bottom ends thereof are connected to ball screw nuts sleeving corresponding ball screws, a synchronous wheel is connected at one of the ends, on the same side, of the two ball screws, the two synchronous wheels are mounted coaxially, a drive device is connected with one of the two ball screws, the synchronous belt is connected between the two synchronous wheels, the two ball screws and the drive device are fixed on a bottom plate, and rolling wheels are arranged at the bottom peripheral end of the bottom plate. The shear-type teacher's desk adopting the synchronous belt for lifting adjustment has the advantages that adjusted through the ball screws, the shear-type extendable rods can be adjusted in height mechanically flexibly and can be compressed to fold, and accordingly the shear-type teacher's desk is convenient to carry and store; with the four rolling wheels, the shear-type teacher's desk is convenient and flexible to move, thereby meeting the requirements of mobile teaching and teaching interactivity nowadays and being highly practical and worthy of wide popularization.

Description

technical field [0001] The invention relates to the technical field of teaching facilities, in particular to a scissor-type podium table that adopts a synchronous belt to adjust the lifting. Background technique [0002] With the acceleration of investment in modern education, more and more areas have begun to pay attention to primary and secondary education, and the podium table is generally placed on the teacher's podium for the teacher to put textbooks, chalk and other teaching utensils in class. It is the most basic in school teaching. One of the teaching aids. At present, most of the teachers are fixed podium tables, such as figure 2 As shown, it is mainly composed of a base, a support rod, and a podium table top. The structure is simple, but it has the following disadvantages: First, the base is not equipped with rollers, and manual handling is required to move the podium table, which is inconvenient and laborious, and cannot meet the current flexibility. The needs o...

AI Technical Summary

Problems solved by technology

At present, most of the teachers are fixed podium tables, such as figure 2 As shown, it is mainly composed of a base, a support rod, and a podium table top. The structure is simple, but it has the following disadvantages: First, the base is not equipped with rollers, and manual handling is required to move the podium table, which is inconvenient and laborious, and cannot meet the current flexibility. The needs of teaching, at the same time, the height of the support rod is not adjustable, which cannot fully take into account the factors of the height of the teacher. When a tall teacher is giving a lecture, he has to bow his head and bend over to look at the textbooks placed on the podium table. This may cause cervical spondylosis in the long run. If the short teacher takes the chalk and other items placed on the podium table, he needs to stand on tiptoe or borrow auxiliary tools to achieve it, which is extremely inconvenient and laborious; second, the podium table top is just a fixed table top, which cannot meet close-distance teaching Tutoring or need to cooperate with the teaching requirements of hanging materials, single function, poor practicability

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