Sport balance board

Abstract

A sport balance board includes an elastic layer, a supporting plate layer, and an anti-slip layer; the elastic layer and the anti-slip layer are positioned on opposite sides of the supporting plate layer, respectively; the supporting plate layer has an upper surface and a lower surface, the lower surface is a spherical or aspherical surface. The balance board of the present disclosure adopts an ergonomic design that enables users to naturally perform various swing and rotation actions while maintaining a good balance and stability, making the actions seem effortless and comfortable.

What is claimed is: 
     
         1 . A sport balance board, comprising:
 an elastic layer;   a supporting plate layer; and   an anti-slip layer;   wherein the elastic layer and the anti-slip layer are provided on opposite sides of the supporting plate layer, respectively, wherein the supporting plate layer has an upper surface and a lower surface, wherein the lower surface is a spherical surface or an aspherical surface.   
     
     
         2 . The sport balance board according to  claim 1 , wherein the lower surface extends along both ends of a long axis and a short axis, wherein the long axis has a long axis spherical radius in a range of 400 mm-2500 mm, wherein the short axis has a short axis spherical radius in a range of 400 mm-2500 mm. 
     
     
         3 . The sport balance board according to  claim 1 , wherein the lower surface extends along both ends of a long axis and a short axis, wherein a long axis spherical radius and a short axis spherical radius are not equal. 
     
     
         4 . The sport balance board according to  claim 3 , wherein the long axis spherical radius is in a range of 400 mm-2500 mm, and the short axis spherical radius is in a range of 450 mm-2400 mm. 
     
     
         5 . The sport balance board according to  claim 1 , wherein the elastic layer, the supporting plate layer, and the anti-slip layer are all provided with openings, wherein a connecting device passes through the openings to connect the elastic layer, the supporting plate layer, and the anti-slip layer. 
     
     
         6 . The sport balance board according to  claim 5 , wherein the connecting device comprises a main body, a first clamping piece and a second clamping piece,
 wherein the first clamping piece and the second clamping piece are located on an upper end and a lower end of the main body, respectively;   wherein the main body is provided to pass through the openings;   wherein the first clamping piece is flush with the elastic layer; and   wherein a highest point and a lowest point of the second clamping piece are not on a same plane.   
     
     
         7 . The sport balance board according to  claim 1 , wherein the upper surface of the supporting plate layer is flat, wherein a thickness of the elastic layer is evenly distributed on the upper surface of the supporting plate layer. 
     
     
         8 . The sport balance board according to  claim 1 , wherein the supporting plate layer is in a concave arc shape, wherein a thickness of the elastic layer is unevenly distributed on the upper surface of the supporting plate layer. 
     
     
         9 . The sport balance board according to  claim 1 , wherein an upper surface of the elastic layer is provided with a game board body. 
     
     
         10 . The sport balance board according to  claim 9 , wherein the upper surface of the elastic layer is provided with a groove, wherein the game board body is placed in the groove; wherein the game board body includes a first surface and a second surface, wherein a plurality of contour lines of the first surface are consistent with a pluralities of lines of the elastic layer, wherein the second surface is a game board surface.