Pneumatic pump

Abstract

The invention discloses a pneumatic pump which comprises a first cylinder body, a piston and a reversing device. The pneumatic pump is characterized in that the reversing device consists of a second cylinder body, a driving disc, and a turnplate hermetically arranged in the second cylinder body, a hollow tube body is arranged in the second cylinder body in an integrated manner, two partition plates are arranged between the second cylinder body and the inner tube body, positioned on the same plane, and partitions space between the second cylinder body and the inner tube body into a left cylinder and a right cylinder, the turnplate is in hermetical compression jointed at the upper ends of the inner tube body and the partition plates, a driving shaft is fixedly connected between the turnplate and the driving disc coaxially, and movement locus transfer equipment is arranged between the piston and the driving disc. The pneumatic pump has the advantages of realizing the up-down reciprocating movement of the piston through common action of the movement locus transfer equipment and the reversing device, avoiding vertical collision between the piston and the first cylinder body, greatly reducing the noise, and being accurate to reverse and stable in work in the working process; and in addition, the whole device is simple in structure, convenient to assemble and disassemble, and easy to maintain and repair.

Description

technical field [0001] The invention relates to a pneumatic pump. Background technique [0002] Pneumatic pump is a device that uses compressed gas as a power source and controls the flow direction of compressed gas through a gas distribution and reversing device to drive the movement of the cylinder piston to achieve output reciprocating linear motion. At present, according to the different gas distribution and reversing devices, it can be divided into two categories: one is to use a pneumatic reversing valve to control the flow of compressed gas to achieve piston reversing, and the other is to use a mechanical reversing mechanism to control the flow of compressed gas to achieve Piston reversing. [0003] However, the pneumatic pumps currently on the market basically have the disadvantages of large volume and complex structure, and the mechanical reversing mechanism generally has the problems of large collision, high noise, and inaccurate reversing control. Although the c...

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Problems solved by technology

[0003] However, the pneumatic pumps currently on the market basically have the disadvantages of large volume and complex structure, and the mechanical reversing mechanism generally has the problems of large collision, high noise, and inaccurate reversing control. Although the current pneumatic reversing mechanism Precise reversing and gas saving, but the price is generally expensive

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