Multi-channel peristaltic pump capable of automatically releasing pressure

Abstract

The invention discloses a multi-channel peristaltic pump capable of automatically releasing pressure. The multi-channel peristaltic pump comprises a support, a steering motor, a rolling body, a cover plate and a cover opening and closing mechanism are arranged on the support, the rolling body is cylindrical, a plurality of axial protrusions distributed in the circumferential direction are arranged on the cylindrical surface of the rolling body, and the two ends of the rolling body are in running fit with the support respectively. The steering motor can drive the rolling body to rotate. The cover plate is located below the rolling body, one end of the cover plate is hinged to the support, a transverse arc-shaped groove and a plurality of longitudinal pressing grooves used for containing hoses are formed in the top face of the cover plate, and each longitudinal groove intersects with the bottom of the transverse arc-shaped groove. The cover opening and closing mechanism comprises a cover opening motor, a lead screw, a sliding block, a sliding rail and a connecting rod. The lead screw is fixedly connected with an output shaft of the cover opening motor, the sliding block is in threaded connection with the lead screw and is in sliding fit with the sliding rail, one end of the connecting rod is rotationally connected with the top end of the sliding block, and the other end of the connecting rod is rotationally connected with the cover plate. By adoption of the multi-channel peristaltic pump, automatic pressure relief of the hoses is achieved, and using is made convenient.

Description

technical field [0001] The invention relates to the technical field of peristaltic pumps, in particular to a multi-channel peristaltic pump capable of automatic pressure relief. Background technique [0002] Peristaltic pump is a kind of liquid material conveying power device. Because of its advantages of avoiding direct contact with liquid material, it is widely used in medical, environmental protection, and chemical industries. Its main structure is rollers, pressing sheets and hoses. Its operation process is: when the pressing sheet presses the hose tightly against the rollers, the disc composed of multiple rollers is continuously extruded to generate negative pressure, so that the liquid material is continuously flowing. sent out. [0003] However, when the peristaltic pump is used, it will encounter the following problems: (1) The hose of the peristaltic pump loses its elasticity after repeated use due to long-term extrusion and deformation; (2) In order to prolong the...

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Problems solved by technology

[0003] However, when the peristaltic pump is used, it will encounter the following problems: (1) The hose of the peristaltic pump loses its elasticity after repeated use due to long-term extrusion and deformation; (2) In order to prolong the service life of the hose, routine operation It is artificially loosening the card to restore the hose to its natural state; (3) For field automation instruments and online unattended working conditions, the hose cannot be loosened, which greatly reduces the life of the hose and requires frequent to replace the hose

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