A cam compression pump

Abstract

The invention relates to a cam compression type inflator comprising an air pump, wherein the air pump is a cam compression type air pump and comprises a pump body, a pump body cover, a cam and a baffle, the pump body is of a cylindrical cavity structure with a bottom surface, the central part of the bottom surface of the pump body is provided with a bearing hole, the pump cover covers another end, opposite to the bottom surface, of the pump body, the cam is of a cylinder structure with the same thickness as that of the inner space of the pump body, the cam is provided with an axle hole in the same axis as the bearing hole in the bottom surface of the pump body, and is arranged in the cavity of the pump body, the cam shaft of the cam passes through the bearing hole in the bottom surface of the pump body and the axle hole in the cam, the side wall of the pump body is provided with a baffle insertion groove, the baffle passes through the baffle insertion groove and is abutted against the outer wall of the cam, and the inner cavity of the pump body is divided into an air storage cavity and an exhaust cavity by the baffle and the cam. By inflating with the cam compression type air pump, the inflating efficiency is improved, and the overall size of the inflator is reduced.

Description

technical field [0001] The invention relates to an inflator, in particular to a cam compression type inflator. Background technique [0002] Air pumps, commonly known as air pumps, are used to inject or supplement the air required by various tires, balls and various elastic airbags. According to different inflation methods, air pumps can be divided into three categories: manual pumps, foot pumps and electric pumps. There are two types of manual pumps: one is the old-fashioned cowhide bowl pump with a sliding inner tube, the basic structure is a piston structure, and it is lubricated with engine oil. Due to the disadvantages of heavy pulling when inflating and easy to stain clothes, it gradually fades out of the market; the other One is a new style air pump with a sliding outer tube (abbreviation: new type air pump), which is a simple one-way valve. Enter the air cylinder, when the handle is pressed down, the gas will enter the inner tube of the air cylinder through the one...

AI Technical Summary

Problems solved by technology

Widely used foot pumps are divided into single-tube and double-tube types. The working principle is the same as that of the new type of pump. It is inflated by foot. The double-tube pump is more efficient than the single-tube pump, but it is laborious.

The electric air pump is composed of a base body, a motor, a transmission gear, a piston rod, a pressure gauge and an air outlet pipe. One end of the base body is screwed with a motor and a transmission gear, and the pinion on the output shaft of the motor meshes with the transmission gear. The other end of the body is provided with a connected cylinder and chamber, the cylinder is socketed at one end of the piston rod, and the other end of the piston rod is eccentrically hinged with the transmission gear; It can be used to set and fix an air outlet pipe, and the end pipe of the air outlet pipe is connected with a joint, which can be used for socketing with the air nozzle of the tire. When in use, the motor drives the transmission gear to make the piston rod reciprocate the cylinder and inflate the tire. The air pump is powered by an electric motor, which is expensive and bulky, and can only be used in specific places

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