Multi-functional diaphragm vacuum pump

Abstract

The invention discloses a multi-functional diaphragm vacuum pump. The multi-functional diaphragm vacuum pump comprises a casing, wherein the casing consists of a ventilating top plate, a left intermediate ventilating plate with air inlet and outlet pipe connectors, a right intermediate ventilating plate with air inlet and outlet pipe connectors, ventilating baseplates, ventilating seats in which elastic rubber is arranged and an upper cover plate, a control switch is arranged at the lower part of the casing, and a control switch hood, a control line hood, a middle baseplate and a lower baseplate are mounted on the casing; a ball valve and an air path connecting pipe are arranged on each of the air inlet and outlet pipe connectors, a handle is arranged above the casing, the ventilating top plate is provided with a multi-way connector, and three-way eccentric wheels driven by a motor and rubber diaphragms driven by three-way eccentric wheel connecting rods are arranged at the inner part of the casing. The multi-functional diaphragm vacuum pump disclosed by the invention can be started under normal pressure, any lubricating liquid and any sealing liquid are not used for an overflowing part, water pollution and oil pollution do not exist, water cooling is not needed, the size is small, the weight is light, gear rotating does not exist, the operation is stable, and the noise is low; when requirements for the vacuum degree and the pumping rate are high, the three eccentric wheels extract the same reaction kettle at the same time, the multi-functional diaphragm vacuum pump is maintenance-free in design, energy-saving and high-efficiency, and the operating cost and the maintenance cost are reduced for customers.

Description

technical field [0001] The invention relates to a multifunctional diaphragm vacuum pump. Background technique [0002] In various industries such as laboratories, diaphragm vacuum pumps are more and more widely used due to their advantages of small size, oil-free, water-free, gear-free and pollution-free, but the improvement of vacuum degree and pumping rate is cumbersome and cannot be realized on the same pump. . SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a multifunctional diaphragm vacuum pump with energy saving, high efficiency, no pollution, small size, light weight, low noise and convenient operation, aiming at the deficiencies in the existing technical measures. [0004] The technical scheme adopted in the present invention is: [0005] Multifunctional diaphragm vacuum pump, including the top plate for ventilation, the left and right ventilation intermediate plates with inlet and outlet air pipe joints, the ventilation ...

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Problems solved by technology

[0002] In various industries such as laboratories, diaphragm vacuum pumps are more and more widely used due to their advantages of small size, no oil, no water, no gears and no pollution. However, the improvement of vacuum degree and pumping rate is cumbersome and cannot be realized on the same pump.

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