Portable range hood

Abstract

The present invention discloses a portable range hood comprising a barrel-shaped master body, a fan assembly, a first filtration device, and a detachable second filtration device. The body has an air inlet at one end and an air outlet at the other, with a first connection device arranged at the outlet. The fan assembly inside the master body is configured to draw oil fume through the inlet and discharge it through the outlet. The first filtration device is fixed at the inlet, while the second filtration device is mounted at the outlet and provided with a second connection device that mates with the first connection device to enable detachable connection. The detachable second filtration device allows users to flexibly adjust filtration and purification capacity and permits quick replacement without hand contact with oily filters, thereby making the portable range hood simple, convenient, and comfortable to use.

What is claimed is: 
     
         1 . A portable range hood, characterized in comprising:
 a master body having a barrel structure with openings at both ends, one opening forming an air inlet of the portable range hood, and the other opening forming an air outlet of the portable range hood, wherein a first connection device is provided at the air outlet;   a fan assembly arranged inside the master body and configured to draw oil fume from outside of the portable range hood through the air inlet and discharge the oil fume through the air outlet;   a first filtration device fixed at the air inlet; and   a second filtration device arranged at the air outlet, the second filtration device is provided with a second connection device on a side of the second filtration device facing the master body, and the second connection device is engaged with the first connection device to achieve detachable connection between the second filtration device and the master body.   
     
     
         2 . The portable range hood of  claim 1 , wherein the second filtration device comprises:
 a main body having a ring-shaped structure, and the second connection device being arranged at a side of the main body facing the master body; and   a filter detachably arranged in a central position of the main body.   
     
     
         3 . The portable range hood of  claim 2 , wherein the second filtration device further comprises:
 a filter mounting sleeve having a ring-shaped structure and having a pair of ring-shaped snapping protrusions positioned at opposite ends of the filter mounting sleeve, each of the ring-shaped snapping protrusions extending radially towards center of the filter mounting sleeve for securing the filter inside the filter mounting sleeve; and   wherein outer diameter of the filter mounting sleeve matches with inner diameter of the main body to allow the filter mounting sleeve to be accommodated inside the main body.   
     
     
         4 . The portable range hood of  claim 3 , wherein the filter mounting sleeve further comprises snap-holding members extending outward radially from an outside surface of the filter mounting sleeve to achieve a snap-hold connection between the filter mounting sleeve and the main body. 
     
     
         5 . The portable range hood of  claim 3 , wherein the filter mounting sleeve further comprises pulling handles extending along an axial direction and configured to facilitate installation/uninstallation of the filter mounting sleeve to/from the main body. 
     
     
         6 . The portable range hood of  claim 4 , wherein the main body comprises:
 a griping handle arranged on a side of the main body away from the body to facilitate installation/uninstallation of the second filtration device to/from the main body;   snapping slots configured to engaged with the snap-holding members of the filter mounting sleeve to achieve snap-hold connection between the filter mounting sleeve and the main body;   a snapping cover arranged on one side of the main body and connected with the main body in a snap-hold manner; and   a baffle arranged on another side of the main body opposite to the snapping cover and configured to cooperate with the snapping cover to accommodate the filter mounting sleeve inside the main body.   
     
     
         7 . The portable range hood of  claim 6 , wherein the snapping cover is further provided with a clearance portion to allow the second connection device to reach out and cooperate with the first connection device to achieve detachable connection between the second filtration device and the body when the snapping cover is arranged at the side of the main body facing the master body. 
     
     
         8 . The portable range hood of  claim 2 , wherein the second filtration device further comprises:
 a filter cover configured to engage with the main body to fix the filter in a central position of the main body and provided with a filter grid facing the filter to allow oil fume to pass through, and mesh density of the filter grid being smaller than mesh density of a grid at the air outlet of the master body.   
     
     
         9 . The portable range hood of  claim 1 , wherein the portable range hood further comprises:
 a third filtration device detachably arranged between the first filtration device and the fan assembly.   
     
     
         10 . The portable range hood of  claim 1 , wherein the second connection device is a magnet and the first connection device is an iron plate, and the detachable connection between the second filtration device and the body is achieved by magnetic attraction.