The invention discloses a high-pressure liquid chromatograph with constant flow pump, comprising a pump head assembly, box, motor and motor drives the rotation of the cam, the pump head assembly includes a pump head, the pump head seat, piston, a compression spring and a plunger seal plunger comprises a sliding sleeve, a plunger and a plunger and the sliding sleeve has a plunger and plunger seat seat with the blind hole of degree of freedom, a plunger and one end of the ball, the other end is provided with a plunger hole compatible with the plunger, the plunger into the blind hole seat and plunger and plunger seat together. The invention relates to a high-pressure liquid chromatograph with constant flow pump used in this way, the plunger of the plunger pump head assembly for floating structure, component produced reduced movement of the plunger of the seal effect on the plunger, the plunger seals prolong service life, reduce maintenance cost.
【技术实现步骤摘要】
【技术保护点】
1.一种液相色谱仪的高压恒流泵,包括泵头组件、箱体、电机和电机带动旋转的凸轮,泵头组件包括泵头(6)、泵头座(3)、柱塞部、压缩弹簧(1)和柱塞密封件(7),其特征在于:所述的柱塞部包括滑套(2)、柱塞座(4)和柱塞(5),所述的滑套(2)具有容纳柱塞座(4)且柱塞座(4)具有自由度的盲孔,所述的柱塞座(4)一端为圆球状,柱塞座(4)另一端开有与柱塞(5)相适应的盲孔,所述的柱塞(5)伸进柱塞座(4)的盲孔内且和柱塞座(4)连为一体。
【技术特征摘要】
【专利技术属性】
技术研发人员:黄显明,刘沪甦,尹正林,
申请(专利权)人:芜湖天乐分析仪器有限公司,
类型:发明
国别省市:34
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