One kind exempting from needle connector mould group, includes at least: a sleeve, an elastic valve body and a conducting element. Wherein elastic valve body is arranged conduit on one on what conducting element,And a hollow shoulder of elastic valve body supports a limit skew wall of what sleeve,To make elastic valve body connect in what sleeve together with common group of conducting element,Wherein,Selectively under one first use state,Conduit narrow portion on the inner wall cladding what of one hollow head of elastic valve body,Among the first water conservancy diversion interface hiding what gas-tight seam； Under one second use state,One injection tube pushes the top surface for abutting what elastic valve body,One hollow head of elastic valve body is pressed down against,It drives valve interior wall to contradict what and forms supravasal waist platform on what,And expose the first water conservancy diversion interface except what gas-tight seam,To which the first water conservancy diversion interface can be connected to one of injection tube injection openings,Wherein,A downcomer and a spiro union portion or a weld portion can also be extended in one piece below conducting element. It can reinforce the back pressure of elastic valve body, by waist platform to reinforce leak preventing effect； Spiro union portion or weld portion then promote the extendibility of this creation connection outer tube.一種免針連接頭模組，至少包括：一套筒、一彈性閥體及一導流件。其中彈性閥體套設於導流件上的一上導管，且彈性閥體的一中空肩部抵頂於套筒的一限位斜壁，從而使彈性閥體連同導流件共同組接於套筒內，其中，選擇性地在一第一使用狀態下，彈性閥體的一中空頭部的內壁包覆於上導管窄部，從而第一導流接口藏於氣密縫之中；在一第二使用狀態下，一注射筒下壓抵接於彈性閥體的頂面，彈性閥體的一中空頭部向下擠壓，帶動閥體內壁抵觸於形成於上導管上的一腰部平台，並使第一導流接口露出於氣密縫之外，從而第一導流接口能夠連接至注射筒之一注射開口，其中，導流件下方還可一體成形地延伸出一下導管及一螺接部或一熔接部。藉由腰部平台可加強彈性閥體的回壓力，以加強防漏效果；螺接部或熔接部則增進本創作連接外部管件的擴充性。
