| CPC A61G 7/16 (2013.01) [A61G 5/006 (2013.01); A61G 5/101 (2013.01); A61G 5/1018 (2013.01); A61G 7/015 (2013.01); A61G 7/018 (2013.01); A61G 7/0528 (2016.11); A61G 7/07 (2013.01); A61G 7/0755 (2013.01); A61G 2200/327 (2013.01); A61G 2200/34 (2013.01)] | 9 Claims |
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1. A wheeled nursing and medical device comprising:
a wheeled seat mechanism including an expandable base frame which extends in a lengthwise front-rear direction, a front wheel assembly which is mounted on a front side of said expandable base frame, and a rear wheel assembly which is mounted on a rear side of said expandable base frame and spaced apart from said front wheel assembly;
a driving module mounted on said expandable base frame and operable to drive expanding and retraction of said expandable base frame in the lengthwise front-rear direction;
a bed mechanism including a main bed plate which is securely mounted on said wheeled seat mechanism, and a backrest plate which is pivotally connected with a rear side of said main bed plate to be turnable upwardly relative to said main bed plate; and
a linking mechanism including at least one inclined bracket which has lower and upper ends that are respectively and pivotally connected with said rear side of said expandable base frame and a front side of said backrest plate,
wherein, when said driving module is operated to drive the retraction of said expandable base frame, said rear wheel assembly is moved forwardly relative to said front wheel assembly while said lower end of said at least one inclined bracket is moved forwardly to bring said upper end of said inclined bracket to press and turn said backrest plate upwardly so as to shift said wheeled nursing and medical device from a bed state, where said backrest plate is placed parallel to and flush with said main bed plate, to a wheelchair state.
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