A LINEAR PERISTALTIC PUMP FOR PRECISE AND QUANTITATIVE DELIVERY OF FLUID

摘要

The present invention refers to a peristaltic pump, especially refers to a linear peristaltic pump for precise and quantitative delivery of fluid, comprising a base, wherein, a lateral seat for fixing a flexible tube is provided on the base, a linear reciprocating movement mechanism is provided below the flexible tube; a sliding block is provided on the linear reciprocating movement mechanism, adapted for releasing and squeezing a flexible tube to moves up and down; a backflow preventing device is fixed on the base arranged close to the linear reciprocating movement mechanism. By adopting the above structure, a new operational principle of linear type is formed, and the structure of traditional rotary peristaltic pump is improved. The flexible tube is rarely abraded; it is easy to disassemble and assemble the flexible tube; and the feed liquid does not contact with the device.

主权项

1. A linear peristaltic pump for precise and quantitative delivery of fluid, comprising
a base, wherein, a lateral seat for fixing a flexible tube is provided on the base, a linear reciprocating movement mechanism is provided below said flexible tube; a sliding rod base is provided on said linear reciprocating movement mechanism, a sliding rod base shaft is fixed on said sliding rod base, a sliding block is sleeved on said sliding rod base shaft; a pin roller is provided at the top end of said sliding block, adapted for squeezing a flexible tube to allow fluid in said tube to move forwards the pin roller, said pin roller is in contact with said flexible tube; a detection device for detecting a position of sliding rod base is provided on said base; a guide rod parallel with said flexible tube is fixed on said lateral seat, a through hole adapted for coordinating with said guide rod is provided on said sliding block, said guide rod is arranged to extend through the through hole on the sliding block, and both ends of said guide rod are connected with a moving device for moving said sliding block up and down; a backflow preventing device is fixed on the base arranged close to said linear reciprocating movement mechanism.