The invention relates to the technical field of health conditioning bed frame, in particular to a direct-connected eccentric reciprocating motion frame, comprising a chassis, a support frame slidably disposed on the chassis, a driving mechanism for driving the support frame to reciprocate relative to the chassis, and driving The mechanism includes an externally-rotating motor and an eccentric link. The external-rotating motor includes a stator mounted on the chassis, and a rotor that is sleeved on the outer side of the stator. The rotor is provided with an eccentric portion, and one end of the eccentric link is rotatably disposed on the eccentric portion. On the outer side, the other end of the eccentric link is rotatably disposed on the support frame； in actual use, the user lies on the support frame, and the eccentric portion of the rotor of the externally-rotating motor directly drives the support frame to move back and forth relative to the chassis via the eccentric link. Compared with the internal rotation motor, the motor does not need to drive the support frame to reciprocate via a pulley, a belt, etc., simplifying the structural design, reducing the manufacturing cost and improving the performance.本創作涉及健康調理床架技術領域，尤其公開了直連式偏心往復運動架，包括底架、滑動設置於底架的支撐架、用於驅動支撐架相對底架來回往復運動的驅動機構，驅動機構包括外轉式電機及偏心連桿，外轉式電機包括裝設於底架的定子、轉動套設於定子外側的轉子，轉子設有偏心部，偏心連桿的一端轉動套設於偏心部的外側，偏心連桿的另一端轉動設置於支撐架；實際使用時，使用者躺在支撐架上，外轉式電機的轉子的偏心部直接經由偏心連桿驅動支撐架相對底架來回移動，相較於內轉式電機，無需電機經由帶輪、皮帶等驅動支撐架往復運動，簡化構造設計，降低製造成本及提升使用性能。
