Vacuum experiment box

Abstract

The invention discloses a vacuum experiment box. The vacuum experiment box comprises a box body and a vacuumizing assembly located on the box body, the vacuumizing assembly comprises a driving air cylinder, an exhaust air cylinder located at the piston rod end of the driving air cylinder and a one-way throttle valve located on one side of the exhaust air cylinder. The piston rod of the driving aircylinder is connected with the piston rod of the exhaust air cylinder, an air hole is formed in a cylinder body of the exhaust air cylinder, and the one-way throttle valve is connected with the air hole through an air pipe. The vacuum pumping operation can be continuously conducted in the box body through the vacuumizing assembly, stability of negative pressure in the box body is guaranteed, energy consumption can be greatly reduced through cooperation of the driving air cylinder and the exhaust air cylinder, meanwhile, a silencer is installed on the exhaust air cylinder, noise can be greatlyreduced, and stability of follow-up operation is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of vacuum boxes, in particular to a vacuum experiment box. Background technique [0002] In the field of laboratory vacuum experiments and vacuum pouring, vacuum test boxes are usually required. The existing vacuum test boxes use a turbine structure to generate negative pressure or directly use a negative pressure generator to form negative pressure in the box. During this process In the middle, the noise is high, the power consumption is high, and the pressure is insufficient at the same time, resulting in the inability to obtain a lower negative pressure, which affects subsequent use. Contents of the invention [0003] The invention overcomes the shortcomings of the prior art and provides a vacuum experiment box to solve the problems in the prior art. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: a vacuum experiment box, including a box body a...

AI Technical Summary

Problems solved by technology

[0002] In the field of laboratory vacuum experiments and vacuum pouring, vacuum test boxes are usually required. The existing vacuum test boxes use a turbine structure to generate negative pressure or directly use a negative pressure generator to form negative pressure in the box. During this process Medium, high noise, high power consumption, and insufficient pressure, resulting in the inability to obtain a lower negative pressure, affecting subsequent use

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