SHOCK ABSORBER AND LAUNDRY TREATMENT DEVICE COMPRISING SHOCK ABSORBER

WIPO Patent Application WO/2019/019862

A1

A shock absorber (1), comprising: a sleeve (11), the sleeve being provided with a first chamber (112); a plunger (12), the plunger being slidably inserted into the first chamber of the sleeve; the first chamber is provided therein with a liquid capsule (14), and an open end of the liquid capsule is fixedly connected to the plunger, the plunger being provided therein with a second chamber (122); the second chamber is provided with a plurality of damping holes (131, 132, 133) at an end near the liquid capsule; an inner chamber of the liquid capsule and/or the second chamber is filled with fluid; at least one valve plate group (15) is further comprised, the valve plate group comprising at least one valve plate (151, 152, 153), and the valve plate group at least covering one damping hole. By means of the present shock absorber, as the stroke of the plunger within a cylinder increases, the damping force received thereby also increases, and thus the extent of vibration may be effectively reduced when a washing machine vibrates violently. The present invention also relates to a laundry treatment device comprising the shock absorber.

ZHAO ZHIQIANG (CN)
XU SHENG (CN)
LI YANG (CN)

PCT/CN2018/093734

January 31, 2019

June 29, 2018

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QINGDAO HAIER DRUM WASHING MACHINE CO LTD (CN)

F16F7/09; D06F37/20

US4254849A	1981-03-10
CN105864340A	2016-08-17
CN203530701U	2014-04-09
KR20050115766A	2005-12-08
DE4319614C1	1994-08-18
JP2009213917A	2009-09-24

HANRAY LAW FIRM (CN)

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