US 12,298,064 B2
Self-balancing adjustable rack device and refrigerator having the same
Zhenxing Zhang, Qingdao (CN); and Xueli Cheng, Qingdao (CN)
Assigned to QINGDAO HAIER SPECIAL REFRIGERATION ELECTRIC APPLIANCE CO., LTD., Qingdao (CN); and HAIER SMART HOME CO., LTD., Qingdao (CN)
Appl. No. 18/022,168
Filed by QINGDAO HAIER SPECIAL REFRIGERATION ELECTRIC APPLIANCE CO., LTD., Qingdao (CN); and HAIER SMART HOME CO., LTD., Qingdao (CN)
PCT Filed Aug. 17, 2021, PCT No. PCT/CN2021/112881
§ 371(c)(1), (2) Date Feb. 19, 2023,
PCT Pub. No. WO2022/037550, PCT Pub. Date Feb. 24, 2022.
Claims priority of application No. 202010839288.7 (CN), filed on Aug. 19, 2020.
Prior Publication US 2023/0296309 A1, Sep. 21, 2023
Int. Cl. F25D 25/02 (2006.01); F25D 23/06 (2006.01)
CPC F25D 23/067 (2013.01) 15 Claims
OG exemplary drawing
 
1. A self-balancing adjustable rack device, comprising a rack assembly, a slide rail assembly and a synchronizing assembly;
wherein the rack assembly comprises a rack body and a bracket;
the slide rail assembly comprises a first slide rail assembly and a second slide rail assembly located on two sides of the rack body, the first slide rail assembly comprises a first rail groove and a first sliding plate in sliding fit with the first rail groove and fixedly connected with the bracket, the second slide rail assembly comprises a second rail groove and a second sliding plate in sliding fit with the second rail groove and fixedly connected with the bracket, and the first rail groove and the second rail groove are arranged in a vertical direction and perpendicular to the rack body;
at least two stop positions are arranged in each of the first rail groove and the second rail groove, the at least two stop positions are arranged at intervals in the vertical direction, and the bracket and the stop positions can be selectively limited and fixed;
the first sliding plate comprises a first upper fixing portion and a first lower fixing portion at upper and lower ends thereof respectively, and the second sliding plate comprises a second upper fixing portion and a second lower fixing portion at upper and lower ends thereof respectively;
the synchronizing assembly comprises a first tensioning piece, a first pulley and a second pulley, and the first tensioning piece sequentially passes through the first upper fixing portion, the first pulley, the second pulley and the second lower fixing portion;
wherein the synchronizing assembly comprises a third pulley and a fourth pulley, and the first tensioning piece sequentially pass through the first upper fixing portion, the first pulley, the third pulley, the fourth pulley, the second pulley and the second lower fixing portion.