Diaphragm air pump

Abstract

The invention discloses a diaphragm air pump. The diaphragm air pump comprises a main ship shell body and a bottom cover, two magnet cores are arranged in the main ship shell body, wire bridges and electromagnetic coils are arranged on the two magnet cores, a piston assembly and a diaphragm assembly are embedded between the two magnet cores, the piston assembly comprises a piston arranged betweenthe two magnet cores and two piston magnetic blocks embedded in the piston, the diaphragm assembly comprises a diaphragm sheet, an air sea device and an air sea device cover which are arranged on a central shaft of the piston in a sleeving mode, a first air inlet hole, an air outlet hole and an air exchange cushion are arranged in the air sea device, the air sea device cover is fixedly connected with the air sea device through screws, the air sea device is detachably mounted on the main ship shell body, and after the air sea device and the main ship shell body are mounted, the first air inlethole communicates with a second air inlet hole in the main ship shell body. According to the diaphragm air pump, the main ship shell body is connected with the bottom cover in an inserted mode, the magnet cores are directly clamped in the main ship shell without screws, the movement safety of the pump is greatly improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of air pumps, in particular to a diaphragm air pump. Background technique [0002] Electromagnetic air pumps have been widely used as low-pressure and small-flow air pressure sources in medical occasions such as portable electric suction devices, tourniquets, and air-cushion beds. At present, medical equipment, experimental instruments, automobile industry, beverage household appliances, environmental protection and other industries have high vacuum requirements for air pumps. Relatively high, the general motor drive will have brush wear, which will affect the service life of the pump, and the volume of the electromagnetic drive will also be slightly larger. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a diaphragm air pump, the main ship hull is plugged and connected with the bottom cover, the magnetic core is directly clamped in the main ship hull, an...

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Problems solved by technology

[0002] Electromagnetic air pumps have been widely used as low-pressure and small-flow air pressure sources in medical occasions such as portable electric suction devices, tourniquets, and air-cushion beds. At present, medical equipment, experimental instruments, automobile industry, beverage household appliances, environmental protection and other industries have high vacuum requirements for air pumps. Relatively high, the general motor drive will have brush wear, which will affect the service life of the pump, and the volume of the electromagnetic drive will also be slightly larger

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