Air blower

Abstract

The present invention provides an air blower relating to a cleaning device. The air blower includes an elastic ball body provided with a nozzle hole and a check hole, a nozzle disposed in the nozzle hole, and a check valve disposed in the check hole. A check portion of the nozzle is disposed into the elastic ball body and is tightly connected with the edge of the nozzle hole. The check portion is provided therein with a stopping assembly for blocking or opening the nozzle hole. With the stopping assembly provided at the nozzle hole, the nozzle hole is opened when the airflow within the elastic ball body is ejected out and closed when the external air enters the elastic ball body. In this way, the external air can be prevented from entering the air blower through the nozzle efficiently.

1 . An air blower including an elastic ball body provided with a nozzle hole and a check hole, a nozzle disposed in the nozzle hole, and a check valve disposed in the check hole, a check portion of the nozzle being disposed into the elastic ball body and tightly connected with the edge of the nozzle hole, wherein the check portion is provided therein with a stopping assembly for blocking or opening the nozzle hole. 
     
     
         2 . The air blower according to  claim 1 , wherein the stopping assembly includes a sealing pad, a magnetic ring and a gasket, the gasket is made of iron or steel, the magnetic ring is sheathed outside the sealing pad and tightly connected with the gasket. 
     
     
         3 . The air blower according to  claim 2 , wherein an inner wall of the check portion is provided with ribs protruding toward a post-like space enclosed by the check portion, the sealing pad and the magnetic ring are disposed in the post-like space and positioned by the ribs in the middle of the post-like space, the sealing pad is in interference fit with the inner wall of the check portion to be fixed at an opening of the nozzle in communication with the elastic ball body. 
     
     
         4 . The air blower according to  claim 3 , wherein the number of the ribs is at least three. 
     
     
         5 . The air blower according to  claim 3 , wherein the sealing pad includes a sealing surface, a hook and a cylinder connected between the sealing surface and the hook, the magnetic ring is sheathed on the cylinder and fixed between the sealing surface and the hook, the hook abuts against the edge of an inner hole of the gasket. 
     
     
         6 . The air blower according to  claim 5 , wherein the rib is provided with a stepped portion for stopping the sealing surface, a distance is formed between the sealing surface and the stepped portion when the magnetic ring is connected with the gasket. 
     
     
         7 . The air blower according to  claim 1 , wherein a periphery of the nozzle is provided with an annular slot, the nozzle hole is in interference fit with the annular slot. 
     
     
         8 . The air blower according to  claim 1 , wherein the check valve includes a valve body, a periphery of the valve body is in interference fit with the edge of the check hole, so that the connecting portion between the valve body and the check hole is kept airtight. 
     
     
         9 . The air blower according to  claim 8 , wherein the check valve further includes a check piece, the valve body is provided with an upper stepped portion and a lower stepped portion, the check piece is located between the upper stepped portion and the lower stepped portion. 
     
     
         10 . The air blower according to  claim 1 , wherein the check valve includes a valve body and a check piece integrally formed together, the interior of the valve body is formed into a hollow channel, the check piece is made of an elastic material, the check piece covers one end of the channel and is elastically connected with the valve body through an elastic connecting portion thereof.