Vacuum pump structure

Abstract

A vacuum pump structure includes a motor, two pump bodies, and a grip. The two pump bodies are connected to the motor and driven by the motor, respectively. Each pump body has a pump chamber with a connection port for connecting a suction pipe. The grip has two ends respectively connected to the two pump bodies for carrying the vacuum pump structure. A communication pipe is disposed inside the grip. The communication pipe is in communication with the pump chambers of the two pump bodies. The two pump bodies jointly perform two working modes at the same time to improve work efficiency.

What is claimed is: 
     
         1 . A vacuum pump structure, comprising:
 a motor;   two pump bodies, connected to the motor and driven by the motor, the pump bodies each having a pump chamber, each of the pump chambers being provided with a connection port for connecting a suction pipe;   a grip, having two ends respectively connected to the two pump bodies; a communication pipe being disposed inside the grip, the communication pipe being in communication with the pump chambers of the two pump bodies.   
     
     
         2 . The vacuum pump structure as claimed in  claim 1 , wherein the connection port of at least one of the pump bodies is provided with a pressure gauge for measuring the degree of vacuum. 
     
     
         3 . The vacuum pump structure as claimed in  claim 1 , wherein the connection port of each of the pump bodies is provided with a check valve, and the connection port is provided with a pressure gauge in front of the check valve for measuring the degree of vacuum.