Cushioning apparatus

Abstract

A cushioning apparatus includes a substrate, a first folding plate extending from the substrate, a second folding plate extending from the substrate, an annular wall, a first clamping portion, and a second clamping portion. The substrate has a first surface and a second surface opposite to each other and has an accommodation space concave towards the second surface from the first surface. The annular wall is disposed around the accommodation space. The first clamping portion is disposed on the first folding plate and is located on a same side as the second surface. The second clamping portion is disposed on the second folding plate and is located on a same side as the second surface. When the first folding plate and the second folding plate are both folded towards the second surface, the first clamping portion and the second clamping portion are clamped with each other.

What is claimed is: 
     
         1 . A cushioning apparatus, comprising:
 a substrate having a first surface and a second surface opposite to each other and having an accommodation space concave towards the second surface from the first surface;   a first folding plate extending from the substrate;   a second folding plate extending from the substrate and adjacent to the first folding plate;   an annular wall disposed around the accommodation space;   a first clamping portion disposed on the first folding plate and located on a same side as the second surface; and   a second clamping portion disposed on the second folding plate and located on a same side as the second surface, wherein when the first folding plate and the second folding plate are both folded towards the second surface of the substrate, the first clamping portion and the second clamping portion are clamped with each other.   
     
     
         2 . The cushioning apparatus according to  claim 1 , wherein the substrate has a first edge and a second edge intersecting with each other, the first edge and second edge respectively extend in a first direction and a second direction, the first folding plate is disposed at the first edge, the second folding plate is disposed at the second edge, the first clamping portion comprises a first sidewall and a protruding portion, the first sidewall is connected to the first folding plate, the protruding portion protrudes from the first sidewall and protrudes towards the second edge in the first direction, the second clamping portion has a trench concave towards the second folding plate. 
     
     
         3 . The cushioning apparatus according to  claim 1 , wherein when the first folding plate and the second folding plate are respectively folded towards the second surface of the substrate, a gap is formed respectively between the first clamping portion and the annular wall and between the second clamping portion and the annular wall. 
     
     
         4 . The cushioning apparatus according to  claim 1 , further comprising:
 two pressing portions disposed on the first folding plate and the second folding plate respectively, wherein one of the two pressing portions is located on a side, far away from the second clamping portion, of the first clamping portion, the other pressing portion is located on a side, far away from the first clamping portion, of the second clamping portion, when the first folding plate and the second folding plate are folded respectively towards the second surface of the substrate, the two pressing portions press against the annular wall respectively.   
     
     
         5 . The cushioning apparatus according to  claim 4 , wherein each of the two pressing portions has a top surface far away from the first folding plate and the second folding plate, the top surface of each of the pressing portion is configured to press against the annular wall, and a contour of the top surface of each of the two pressing portion is complementary to a partial outer surface of the annular wall. 
     
     
         6 . The cushioning apparatus according to  claim 4 , further comprising a first supporting portion disposed on the first folding plate and located on a same side as the second surface, wherein the first supporting portion is connected with the first clamping portion and a corresponding one of the two pressing portions. 
     
     
         7 . The cushioning apparatus according to  claim 6 , further comprising a second supporting portion disposed on the second folding plate and located on a same side as the second surface, wherein the second supporting portion is connected with the second clamping portion and the other one of the two pressing portions. 
     
     
         8 . The cushioning apparatus according to  claim 1 , wherein the first folding plate is concave towards the second surface to form a first cushioning space, the second folding plate is concave towards the second surface to form a second cushioning space, and the first cushioning space and the first cushioning space are respectively aligned with the first clamping portion and the second clamping portion.