Impeller structure and projection equipment

Abstract

An impeller structure including two rotating discs, connecting components, and high-speed blades is provided. Each rotating discs includes a hole, locking holes, and snap-in slots. The snap-in slot includes an outer slot and a limit slot. The connecting component connected to the rotating discs through the locking holes. The high-speed blade includes a body and protrusions. The body includes two lateral walls. The high-speed blades are disposed between the rotating discs. Under high-speed rotation, the high-speed blade moves toward an outer edge of the rotating disc due to a centrifugal force. The lateral wall of the body is snapped into the snap-in slot and tightly fitted in the outer slot. The protrusion is snapped into the limit slot and restricts displacement of the protrusion. The impeller structure is easy to disassemble and assemble, and can withstand high rotating speeds. Also provided is a projection equipment with the impeller structure.

What is claimed is: 
     
         1 . An impeller structure, comprising:
 two rotating discs, each of the two rotating discs comprising one hole, a plurality of locking holes, and a plurality of snap-in slots, the hole being located in a center of the rotating disc, the locking holes and the snap-in slots being located outside the hole, and the locking holes and the snap-in slots being alternately disposed by using the hole as a centre of symmetry, wherein each of the snap-in slots is in communication with the hole and extends to an outer edge of the rotating disc, and comprises an outer slot and a limit slot, the limit slot being located in the outer slot, being in communication with the hole and extending toward the outer edge of the rotating disc, and comprising two side walls and a limit wall, two sides of the limit wall being respectively connected to the side walls;   a plurality of connecting components, two ends of each of the connecting components being respectively connected to the rotating discs through the locking holes; and   a plurality of high-speed blades, each of the high-speed blades comprising:
 a body comprising a first end wall, two lateral walls, and a second end wall, the first end wall being separated from the first end wall by the two lateral walls, two opposite catching and tossing slots being disposed in the first end wall, the two lateral walls, and the second end wall, a bottom surface of each of the catching and tossing slots being a catching and tossing surface; and 
 two protrusions disposed on two sides of the body, respectively connected to each of the lateral walls, and close to the first end wall, wherein 
   each of the high-speed blades is disposed between the rotating discs, the lateral wall of each of the high-speed blades is snapped into the snap-in slot, and the protrusion is snapped into the limit slot; and   at a rotation speed, the high-speed blade moves toward the outer edge of the rotating disc due to a centrifugal force, so that the lateral wall is tightly fitted in the outer slot, and the limit slot restricts displacement of the protrusion.   
     
     
         2 . The impeller structure according to  claim 1 , wherein a distance between the lateral walls of the high-speed blade is gradually shortened by extending from the first end wall to the second end wall. 
     
     
         3 . The impeller structure according to  claim 1 , wherein the catching and tossing surface of the high-speed blade extends from the second end wall to the first end wall at an inclined angle. 
     
     
         4 . The impeller structure according to  claim 1 , wherein each of the lateral walls of the high-speed blade comprises an upper edge and an opposite lower edge, a distance between the upper edge and the lower edge being gradually shortened by extending from the first end wall to the second end wall. 
     
     
         5 . The impeller structure according to  claim 1 , wherein an outer peripheral surface of each of the protrusions of the high-speed blade comprises a bottom surface, two side surfaces, and a top surface, the bottom surface being flush with the first end wall, the top surface being a first circumferential surface, and a distance between the side surfaces is shorter than a distance between the lateral walls. 
     
     
         6 . The impeller structure according to  claim 1 , wherein a distance between two side walls of each of the snap-in slots is gradually shortened by extending from the hole to the outer edge of the rotating disc. 
     
     
         7 . The impeller structure according to  claim 1 , wherein one side wall of each of the snap-in slots comprises a top edge and a bottom edge, a distance between the top edge and the bottom edge being gradually shortened by extending from an outer edge of the hole to the outer edge of the rotating disc. 
     
     
         8 . The impeller structure according to  claim 1 , wherein the limit wall of each of the limit slots is a second circumferential surface. 
     
     
         9 . A projection equipment, comprising:
 a feeding device comprising a receiving port;   a projection device in communication with the feeding device and comprising:
 the impeller structure according to  claim 1 ; and 
 a rotating shaft component comprising a discharge port, two ends of the rotating shaft component being respectively disposed in the hole; and 
   a power rotating device comprising a driving shaft, the driving shaft being connected to the rotating shaft component of the impeller structure to drive the impeller structure to rotate.