Suction Device And Suction System

Abstract

A volute case including a suction port and a fan case accommodating a blower fan and including an exhaust port is provided. The volute case is configured to form a flow path, together with the fan case, from the suction port to the exhaust port, and is connected to the fan case on an upstream side of the flow path, an opening being further provided on a radially outer side of the volute case. The opening is configured to allow attachment of a first storage unit configured to store an object that passes through the opening among objects sucked from the suction port by air flow generated in the flow path by the blower fan.

What is claimed is: 
     
         1 . A suction device, comprising: 
 a volute case including a suction port; and   a fan case accommodating a blower fan and including an exhaust port, wherein: 
 the volute case is configured to form a flow path, together with the fan case, from the suction port to the exhaust port, and is connected to the fan case on an upstream side of the flow path, an opening being further provided on a radially outer side of the volute case, and 
 the opening is configured to allow attachment of a first storage unit configured to store an object that passes through the opening among objects sucked from the suction port by air flow generated in the flow path by the blower fan. 
   
     
     
         2 . The suction device according to  claim 1 , wherein 
       the exhaust port is configured to allow attachment of a second storage unit configured to store, among the objects sucked from the suction port, an object that is not stored in the first storage unit. 
     
     
         3 . The suction device according to  claim 2 , wherein 
       the exhaust port is configured to face rearward when the suction port is oriented forward in the suction device. 
     
     
         4 . The suction device according to  claim 1 , further comprising 
       a prevention portion provided between the opening of the flow path and the blower fan, the prevention portion being configured to prevent the sucked object from moving. 
     
     
         5 . The suction device according to  claim 1 , wherein 
       the volute case is configured such that a central portion thereof is connected to the fan case. 
     
     
         6 . The suction device according to  claim 5 , wherein 
       the fan case has a volute shape, and 
       the fan case is configured such that a central portion thereof is connected to the volute case. 
     
     
         7 . The suction device according to  claim 6 , wherein 
       the volute case and the fan case are configured to allow adjustment of a relative position with respect to each other in a circumferential direction. 
     
     
         8 . The suction device according to  claim 1 , wherein 
       the opening is configured to allow adjustment of a position of the opening in a circumferential direction of the volute case. 
     
     
         9 . A suction system, comprising: 
 the suction device according to  claim 1 ;   a first storage unit attachable to the opening; and   a second storage unit attachable to the exhaust port.   
     
     
         10 . The suction system according to  claim 9 , 
       further comprising: 
 a suction hose configured to be attachable to the suction port, the suction hose being configured to be extendable and contractible, and 
 a rod-shaped member is configured such that one end thereof is attached to a tip of the suction hose, thereby allowing an operator to grip another end.