注射笔制造技术

一种注射笔，包含启动机构(1)与驱动机构(2)，启动机构(1)的针鞘(40)结合连杆(30)与前弹簧(60)装设于前壳体(10)及其内部的内套壳(20)中，前盖(50)设于前壳体(10)前端而罩盖针鞘(40)，驱动机构(2)的后壳体(70)与其内部的驱动套壳(80)连接前壳体(10)，扳机管(90)与键板(A0)装设于驱动套壳(80)中，推杆(A1)结合后弹簧(A2)装设于扳机管(90)内，驱动套壳(80)的弹性挡板(83)卡扣驱动套壳(80)与推杆(A1)而锁定后弹簧(A2)，启动机构(1)与驱动机构(2)之间能装设注射针组(3)，取下前盖(50)，针鞘(40)能按压内缩至前壳体(10)中而露出针头(3A)，内缩的针鞘(40)带动连杆(30)推开驱动套壳(80)的弹性挡板(83)解锁，被释放的后弹簧(A2)推动推杆(A1)，使注射针组(3)传输药剂，注射后，针鞘(40)为前弹簧(60)推抵复位，并通过连杆(30)抽拔键板(A0)卡扣于内套壳(20)中，针鞘(40)即无法被按压内缩，让使用后的针头(3A)被保护，避免人们被针扎的意外。

Injection pen

A syringe pen comprises a starting mechanism (1) and a driving mechanism (2), a needle sheath (40) of the starting mechanism (1) is connected with a connecting rod (30) and a front spring (60) in the front housing (10) and an inner sleeve (20) thereof, a front cover (50) is arranged at the front end of the front housing (10) and a cover needle sheath (40), a rear housing (70) of the driving mechanism (2) is connected with a driving sleeve (80) inside the front housing (10), a trigger tube (90) and a key plate (A0) are installed In the driving sleeve (80), the push rod (A1) and the rear spring (A2) are installed in the trigger tube (90), the elastic baffle plate (83) of the driving sleeve (80) is buckled to drive the sleeve (80) and the push rod (A1) to lock the rear spring (A2), the injection needle group (3) can be installed between the starting mechanism (1) and the driving mechanism (2), the front cover (50) can be removed, the needle sheath (40) can be pressed and retracted to the front shell (10) to expose the needle head (3a), and the retracted needle sheath (40) Drive the connecting rod (30) to push the elastic baffle plate (83) of the drive sleeve (80) to unlock, and the released rear spring (A2) pushes the push rod (A1) to transfer the agent to the injection needle group (3). After injection, the needle sheath (40) is pushed by the front spring (60) to reset, and the key plate (A0) is pulled out by the connecting rod (30) to buckle in the inner sleeve (20), so that the needle sheath (40) cannot be pressed and retracted, so that the needle head (3a) after use is protected, so as to prevent people from being pressed and retracted An accident with a needle.

【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。

【技术保护点】
PCT国内申请，权利要求书已公开。/n

【技术特征摘要】
【国外来华专利技术】PCT国内申请，...

【专利技术属性】
技术研发人员：叶进民，
申请(专利权)人：群康生技股份有限公司，
类型：发明
国别省市：中国台湾;TW