The student desk is an indispensable part of the teaching work. Most of the study time of students cannot be separated from the desk. Therefore, the school attaches more importance to the size and material of the desk. The size must be consistent with the sitting position of the student and use the growth of the body. , The material also needs environmental protection and non-toxic.
Indispensable equipment for students 'desks is closely related to students' learning and health. Therefore, the implementation of the "Sanitary Standards for School Tables and Chairs (Revised Draft)" is the key. Efforts should be made to adapt the desks and chairs to the body of the students, to form a unity of reasonable coordination of desks, people, and chairs, to help students maintain a good learning posture, especially reading and writing postures. Because good reading and writing postures are not easy to fatigue, and the writing distance is not reasonable. Only the size of the desks and chairs are suitable for the student's body, so that vision is not tight, the chest and abdomen organs are not suppressed, breathing is free, blood flow is smooth, the burden of skeletal muscle is as large as possible, and the fulcrum is evenly distributed. Fatigue is relieved. Lead out and prevent spinal curvature and vision damage.
There are three main types of student desks on the market: (1) wooden desks (student desks made of miscellaneous wood and solid wood, currently used in non-urban areas); (2) steel-plastic desks (combination of steel and plastic as products) Support, while using melamine board as the panel); (3) rubber-plastic desk (rubber-pl) elastic alloy material, school desks and chairs products through mechanical molding). According to the classification of desk use, flat tables are commonly used in primary and secondary schools, and universities have trapezoidal desks, reading room desks, etc. Of course, primary and secondary school desks are also divided into lifting desks and fixed desks. Stern school desks and chairs. From the perspective of material composition and development history, there is no obvious difference between the two. They have all gone through the manufacturing of miscellaneous wood (first generation)-steel-wood integration (second generation)-hard plastic replacement stage. From the perspective of shape, they gradually transition from a single form to a lifting connection form, which is more in line with various Form of ergonomics. In addition, as the height and weight of adolescents develop. There are problems in the revision of the desk and chair standards at home and abroad, but there are also differences, mainly reflected in the layout of the desks and chairs. Compared with the universal unity in China, the layout of desks and chairs for international students is flexible and diverse.
Student desks do not rust due to painting technology. The surface color is light camel electrostatic spraying and the surface is smooth. The interior of the desk is electrostatically sprayed with light camel. The legs of the table are 25 mm x 50 mm square iron pipes with a wall thickness of more than 10 mm. The legs are 25 mm x 50 mm square iron pipes with a thickness of more than 10 mm. The table top is a very environmentally friendly board with white rubber and a thickness of 20 mm. A jointless edge banding pen slot is formed by mechanical injection molding at one time. There are two pen slots on the front of the blackboard. The injection edges and pen tray are gray. The seat board and the back board are multi-layer flame-resistant and environmentally-friendly white rubber boards. The thickness of the entire seat plate is more than 15mm, and the color is similar to that of the desktop. Carbon dioxide gas shielded welding is used for welding. The bead is smooth and smooth, without burrs, cracks, no welding nodules, no penetration, no leakage.