Bubble machine

Abstract

The present invention provides a bubble machine, comprising a housing, a film forming device in the housing, an air supply device, and a cavity. The film forming device comprises at least one film forming unit, the cavity is provided with at least one air supply channel, an air inlet end of the air supply channel is close to the air supply device, an air outlet end of the air supply channel is close to the film forming unit, an air flow generated by the air supply device flows through the air supply channel to the film forming unit, and the air flow flows through the air supply channel and forms a laminar air flow. The amount and size of bubbles generated by the bubble machine according to the present invention are more uniform.

What is claimed is: 
     
         1 . A bubble machine, comprising a housing, a film forming device in the housing, an air supply device, and a cavity, wherein the film forming device comprises at least one film forming unit, wherein the cavity is provided with at least one air supply channel, an air inlet end of the air supply channel is close to the air supply device, an air outlet end of the air supply channel is close to the film forming unit, an air flow generated by the air supply device flows through the air supply channel to the film forming unit, and the air flow flows through the air supply channel and forms a laminar air flow. 
     
     
         2 . The bubble machine according to  claim 1 , wherein a separating strip is provided in the middle of the film forming unit to separate the film forming gap of the film forming unit into a first film forming gap and a second film forming gap. 
     
     
         3 . The bubble machine according to  claim 2 , wherein the separating strip evenly separates the film forming gap. 
     
     
         4 . The bubble machine according to  claim 1 , comprising a plurality of air supply channels, and the air outlets of the plurality of air supply channels are provided adjacent to each other, so that one end of the plurality of air supply channels close to the film forming unit forms an air surface. 
     
     
         5 . The bubble machine according to  claim 4 , wherein the plurality of air supply channels are provided adjacent to each other. 
     
     
         6 . The bubble machine according to  claim 4 , wherein the air supply channel is linear. 
     
     
         7 . The bubble machine according to  claim 4 , wherein the area of the air outlet of a single of the air supply channels is smaller than that of the film faulting gap of the film forming unit. 
     
     
         8 . The bubble machine according to  claim 4 , wherein the area of the air inlet of a single of the air supply channels is smaller than that of the air outlet surface of the air supply device. 
     
     
         9 . The bubble machine according to  claim 4 , wherein the area of the air surface is larger than that of the film forming gap of the film forming unit and the air surface is capable of covering the film forming gap of the film forming unit. 
     
     
         10 . The bubble machine according to  claim 1 , wherein the cross section of the air supply channel is circular or regular polygon.