This creation is a kind of related hospital bed auxiliary wheel structure of what,Its predominantly assist hospital bed turn to,The wheel group structure of revolution,Be equipped with below what hospital bed main body before being displaced for activity,Hou wheel group,And before what,An auxiliary wheel device is equipped between Hou wheel group,The auxiliary wheel device includes a frame body being pivoted with hospital bed main body,What frame body two sides are equipped with auxiliary wheel,And the frame body corresponds to one driving source of pivot group,Driving source one end group is connected to shock-absorbing unit,And it allows shock-absorbing unit to correspond to group and is located at hospital bed main body； Thereby,When under hospital bed what normality use the auxiliary wheel device not with ground face contact,And what steering,When revolution,Tug frame body is supported using driving source power output shaft end,And two auxiliary wheels contact ground is allowed to be turned to,Revolution movement,Substantially reduce its turn to,The radius of gyration,Two-wheel has stability characteristic (quality) simultaneously,It implements it integrally and more increases practical effect characteristic person using upper.本創作係有關於一種病床輔助輪結構，其主要為輔助病床轉向、迴轉的輪組結構，於病床主體下方設有供活動位移的前、後輪組，而於前、後輪組之間設有一輔助輪裝置，該輔助輪裝置包含有一與病床主體樞設的框架體，於框架體兩側設有輔助輪，且該框架體對應樞組一驅動源，該驅動源一端組接有避震單元，且讓避震單元對應組設在病床主體；藉此，當病床於常態下使用該輔助輪裝置不與地面接觸，而於轉向、迴轉時，利用驅動源出力軸端抵掣框架體，而讓二輔助輪接觸地面進行轉向、迴轉動作，大幅縮小其轉向、迴轉半徑，同時雙輪具有穩定特性，使其整體施行使用上更增實用功效特性者。
