Device for correcting sitting posture of child
A technology for sitting and children, applied in children's chairs, children's furniture, home appliances, etc., can solve problems such as inattention, long sitting time, and brain hypoxia.
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[0031] As an embodiment of the present invention, the lifting device includes a hydraulic device, the hydraulic device includes a hydraulic rod 12 and an oil supply device 13; the hydraulic rod 12 includes a primary hydraulic rod 14 and a secondary hydraulic rod 15, and the secondary hydraulic rod 15 is internally provided There is an oil chamber 16, the lower end of the primary hydraulic rod 14 is provided with a driven piston 17, and the driven piston 17 is slidably connected with the oil chamber 16, and the primary hydraulic rod 14 is slidably connected with the upper end of the secondary hydraulic rod 15.
[0032] As an embodiment of the present invention, the oil feeding device 13 includes an oil tank 18, the lower end of which is connected to the oil chamber 16 through an oil pipe 19, an active piston 20 is slidably connected in the oil tank 18, and a threaded rod 21 is threadedly connected to the upper end of the oil tank 18. The upper end of the rod 21 is fixedly connec...
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