Screw direct-pushing type hardness adjusting device, as well as chair and mattress provided with same

The invention relates to a screw direct-pushing type hardness adjusting device. The screw direct-pushing type hardness adjusting device comprises a soft bag, elastic parts, a movable plate, a screw rod and a fixed plate, wherein the soft bag covers the surface, the fixed plate is fixedly arranged re...

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Bibliographic Details
Main Author LUO ZHIBAO
Format Patent
LanguageChinese
English
Published 30.08.2019
Subjects
BEDS
CHAIRS
COFFEE MILLS
DOMESTIC ARTICLES OR APPLIANCES
FURNITURE
HUMAN NECESSITIES
SOFAS
SPICE MILLS
SUCTION CLEANERS IN GENERAL
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Summary:The invention relates to a screw direct-pushing type hardness adjusting device. The screw direct-pushing type hardness adjusting device comprises a soft bag, elastic parts, a movable plate, a screw rod and a fixed plate, wherein the soft bag covers the surface, the fixed plate is fixedly arranged relative to soft furniture, the screw rod is rotationally arranged in the fixed plate in a fixed position manner, the screw rod is screwed to the movable plate for driving the movable plate to perform reciprocating motion between the soft bag and the fixed plate, the elastic parts are arranged betweenthe soft bag and the movable plate, one end of each of the elastic parts elastically acts on the soft bag, and the other ends of the elastic parts act on the movable plate; and the screw rod is manually or electrically rotated for changing the distance between the soft bag and the movable plate, so that the tightness degree of the elastic parts can be changed, and the hardness degree is adjusted.The screw rod is arranged
Bibliography:Application Number: CN201810154220