A booster mattress that can be held up and moved back and forth
A technology of mattress and head tray, which is applied in the field of electric rotating synchronous link seat
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[0020] The technical scheme adopted by the present invention is: it is made up of shell assembly (1), hold-up displacement assembly (6), synchronous connecting rod assembly (20), eccentric crankshaft assembly (27).
[0021] see figure 1 . figure 2 .The shell assembly (1) is composed of: the shell assembly (1), the support roller (2), the fixed pad surface (3), and the shell feet (5): the shell assembly (1) is installed with 3 pieces or According to the length of the shell assembly, it is necessary to install multiple fixed pads (3), the middle part is installed with 3 or multiple support rollers (2) are required according to the length of the shell assembly, and the lower part is installed with 4 or more shell legs (5 ), a box for installing the eccentric crankshaft assembly (27) and bearing and bearing block (28) is reserved on both sides; it is manufactured by plastic injection molding or adopts stainless steel material drawing stamping or welding forming process to form.
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