Recitation platform for teaching in senior high school
A reciting desk and high school technology, applied in the field of reading desks for high school teaching, can solve the problems of inconvenient reading for reciters and the inability to adjust the height of the desk, achieve convenient desk height and inclination angle, low production cost, and adjust the height and tilt of the desk The effect of the angle
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[0029] A recitation table for high school teaching, such as Figure 1-4 As shown, it includes a box body 1, a wheel 2, a first bearing seat 3, a second bearing seat 4, a first rotating shaft 5, a rocking handle 6, a first bevel gear 7, a first screw 8, a second bevel gear 9, The first nut 10, the lifting rod 12, the hollow sleeve 13, the second nut 14, the T-shaped screw 15, the movable rod 16, the ferrule 17, the placement plate 18, the clamping plate 21, the first spring 22, the baffle 23 and the second Spring 24, the left and right sides of the bottom of the box 1 are symmetrically connected to the wheels 2 by bolts. The inner left side wall of the box 1 is welded with a first bearing seat 3 and a second bearing seat 4, and the first bearing seat 3 is located at the second Below the bearing seat 4, a first rotating shaft 5 is horizontally arranged in the first bearing seat 3, the first rotating shaft 5 is interference-connected with the bearing in the first bearing seat 3, a...
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