Waste liquid guide device with quickly replaceable inner bag

Abstract

A waste liquid guide device with a quickly replaceable inner bag comprises a bottle body having an inner bag; a cover installed with a waster liquid guide tube, two vacuum suction holes, a tube head, a handle, an annular groove, a check valve, a unidirectional valve; the inner bag is coupled to the annular groove; wherein the unidirectional valve is connected to the two vacuum suction holes; the check valve is communicated to the waste liquid guide hole; the tube head is communicated to the two vacuum suction holes; the inner bag is connected to the cover and is engaged to the annular groove; and a pressure release valve installed to the bottle body. Thus a waste liquid guide device with a quickly replaceable inner bag is formed. The inner bag can be replaced quickly without stopping other instrument.

1 . A waste liquid guide device with a quickly replaceable inner bag, comprising:
 a bottle body having an inner bag;   a cover installed with a waster liquid guide tube, two vacuum suction holes, a tube head, a handle, an annular groove, a check valve, a unidirectional valve; the inner bag is coupled to the annular groove; wherein the unidirectional valve is connected to the two vacuum suction holes; the check valve is communicated to the waste liquid guide hole; the tube head is communicated to the two vacuum suction holes; the inner bag is connected to the cover and is enaged to the annular groove; and   a pressure release valve installed to the bottle body.   
     
     
         2 . The waste liquid guide device with a quickly replaceable inner bag as claimed in  claim 1 , wherein the pressure release valve is a pressing type pressure release valve. 
     
     
         3 . The waste liquid guide device with a quickly replaceable inner bag as claimed in  claim 2 , wherein the pressure release valve includes a nut, a washer, an elastic element, and a pressing portion; the pressing portion has an outer thread; the washer and the elastic element are engaged to the pressing pressure release valve; the nut is engaged to the outer thread. 
     
     
         4 . The waste liquid guide device with a quickly replaceable inner bag as claimed in  claim 1 , wherein the pressure release valve is a screwed type pressure release valve. 
     
     
         5 . The waste liquid guide device with a quickly replaceable inner bag as claimed in  claim 4 , wherein the pressure release valve includes a hollow screw, a drain opening, and a washer; the drain opening is formed in the hollow screw and the hollow screw is combinable with the washer.