Membrane pump device

Abstract

A membrane pump device powered by an activating element includes a chamber body and a second chamber body. The interior of the chamber body is provided with a chamber. Both sides of the chamber body are provided with an inlet pipeline and an outlet pipeline that are in fluid communication with the aforementioned chamber, respectively. A valve is provided on the inner wall face of the chamber, thereby preventing the working fluid from generating a backflow phenomenon. Furthermore, the top surface of the chamber body is provided with a membrane. An activating element abuts on the membrane for driving the membrane to swing up and down, thereby pressing the working fluid within the chamber to circulatively flow in one direction. Finally, the second chamber body is in fluid communication with the chamber body. The interior of the second chamber body is provided with another valve. Via this arrangement, in addition to miniaturize the pump structure to a further extent, the working performance of the pump and the flowing amount of the working fluid are also increased.

1 . A membrane pump device, comprising:
 a chamber body having an inlet pipeline and an outlet pipeline, respectively;   a membrane provided on the top surface of the chamber body; and   an activating element abutting flatly against the upper surface of the membrane, the activating element having a fixed end and a swinging end, the swinging end generating swinging action with one side thereof swinging like a sector;   a second chamber body being in fluid communication with the chamber body;   wherein a large range of the swinging action generated by the activating element changes an internal volume of the chamber body, so that the working fluid remaining in the chamber body flows in the inlet pipeline and drains out of the outlet pipeline to generate a flow in one direction.   
   
   
       2 . The membrane pump device according to  claim 1 , wherein the second chamber body further comprises a second chamber, an inlet pipeline and an outlet pipeline, and the inlet pipeline and the outlet pipeline are in fluid communication with the second chamber. 
   
   
       3 . The membrane pump device according to  claim 2 , wherein the inlet pipeline of the second chamber body is in fluid communication with the outlet pipeline of the chamber body. 
   
   
       4 . The membrane pump device according to  claim 3 , wherein an inner wall face of the second chamber body is provided with a valve at a position corresponding to that of the inlet pipeline. 
   
   
       5 . The membrane pump device according to  claim 3 , wherein the chamber body further comprises a chamber that is in fluid communication with the inlet pipeline and the outlet pipeline of the chamber body. 
   
   
       6 . The membrane pump device according to  claim 5 , wherein the inner wall face of the chamber is provided with a valve at the position corresponding to that of the inlet pipeline. 
   
   
       7 . The membrane pump device according to  claim 2 , wherein the outlet pipeline of the second chamber body is in fluid communication with the inlet pipeline of the chamber body. 
   
   
       8 . The membrane pump device according to  claim 7 , wherein the outlet pipeline of the chamber body is further connected to a third chamber body. 
   
   
       9 . The membrane pump device according to  claim 8 , wherein the third chamber body further comprises a third chamber, an inlet pipeline and an outlet pipeline, and the inlet pipeline and the outlet pipeline are in fluid communication with the third chamber. 
   
   
       10 . The membrane pump device according to  claim 9 , wherein the inner wall face of the third chamber is provided with a valve at the position corresponding to that of the inlet pipeline. 
   
   
       11 . The membrane pump device according to  claim 1 , wherein the chamber body is connected correspondingly with a casing, and the casing is provided thereon with a plurality of penetrating troughs to correspond to the fixed end and the swinging end of the activating element. 
   
   
       12 . The membrane pump device according to  claim 11 , wherein the fixed end is electrically connected with a plurality of electrodes leads. 
   
   
       13 . The membrane pump device according to  claim 12 , wherein the plurality of electrodes leads penetrates into the corresponding penetrating troughs. 
   
   
       14 . The membrane pump device according to  claim 1 , wherein the activating element is a piezoelectric piece. 
   
   
       15 . The membrane pump device according to  claim 1 , wherein the fixed end is electrically connected with a plurality of electrode leads. 
   
   
       16 . The membrane pump device according to  claim 1 , wherein the inlet pipeline and the outlet pipeline are provided respectively at a position of one side of the chamber body.