Spring module, method for releasing spring module, and elastic cushion

Abstract

A spring module includes a plurality of elastic units. Each of the plurality of elastic units includes a spring, a base, an upper cover, and an intermediate flexible strap. The upper cover includes a channel penetrating through the upper cover along a length direction of the intermediate flexible strap, so that the upper cover has translational freedom relative to the intermediate flexible strap in a direction toward the base, and the intermediate flexible strap is provided with a buckling member. When the spring is in a released state, the buckling member is located on an outside of the upper cover and below the upper cover. When the spring is in a compressed state, the buckling member is placed in the channel and is interlocked with the channel in a direction of releasing the spring.

What is claimed is: 
     
         1 . A spring module, comprising:
 a plurality of elastic units arranged in an array, wherein:
 each of the plurality of elastic units comprises a spring, a base disposed at a lower end of the spring, an upper cover disposed at an upper end of the spring, and an intermediate flexible strap connected to the base and the upper cover, 
 the upper cover comprises a channel penetrating through the upper cover along a length direction of the intermediate flexible strap, so that the upper cover has translational freedom relative to the intermediate flexible strap in a direction toward the base, 
 the intermediate flexible strap is provided with a buckling member, 
 when the spring is in a released state, the buckling member is located on an outside of the upper cover and below the upper cover, and 
 when the spring is in a compressed state, the buckling member is placed in the channel and is interlocked with the channel in a direction of releasing the spring. 
   
     
     
         2 . The spring module according to  claim 1 , wherein:
 the buckling member is disposed on a side wall of the intermediate flexible strap and extends outward along a radial direction of the intermediate flexible strap, and   when the spring is in the compressed state, the buckling member is placed in the channel and has an interference fit with an inner wall of the channel.   
     
     
         3 . A method for releasing the spring module according to  claim 1 , wherein:
 the plurality of elastic units are connected to each other, and   the method comprises pulling the upper cover of one of the plurality of elastic units using an external force, so that an interlocked connection of the buckling member and the channel of the upper cover is released to release the one of the plurality of elastic units and adjacent springs of the springs of the plurality of elastic units are released successively due to a restoring force of the spring of the one of the plurality of elastic units, so that an entire row or group of the springs of the plurality of elastic units is released to be in the released state.   
     
     
         4 . A spring module, comprising:
 a plurality of elastic units arranged in an array, and   a fastening member, wherein:
 each of the plurality of elastic units comprises a spring, a base disposed at a lower end of the spring, an upper cover disposed at an upper end of the spring, and an intermediate flexible strap connected to the base and the upper cover, 
 the fastening member is arranged at an upper end of an entire row or group of the springs of the spring module, 
 the fastening member comprises a plurality of pressing caps corresponding to each spring in the entire row or group of the springs, 
 each of the plurality of pressing caps comprises a first channel penetrating through a corresponding one of the plurality of pressing caps along a length direction of the intermediate flexible strap and the upper cover comprises a second channel penetrating through the upper cover along the length direction of the intermediate flexible strap, so that each of the plurality of pressing caps and the upper cover of a corresponding one of the plurality of elastic units have translational freedom relative to the intermediate flexible strap in direction toward the base, 
 a width of the first channel of each of the plurality of pressing caps is smaller than a width of the second channel of the upper cover, 
 the intermediate flexible strap comprises two buckling members arranged at intervals, 
 when the spring is in a released state, the two buckling members are located on an outside of the upper cover and below the upper cover, and 
 when the spring is in a compressed state, the two buckling members are respectively placed above and below the first channel and are interlocked with the first channel in a direction of releasing the spring. 
   
     
     
         5 . The spring module according to  claim 4 , wherein:
 a side wall of the first channel of the corresponding one of the plurality of pressing caps comprises an opening connected to the first channel, and   a width of the opening gradually increases along a direction away from the first channel to define a position-providing opening.   
     
     
         6 . The spring module according to  claim 4 , wherein:
 the two buckling members are arranged on a side wall of the intermediate flexible strap and extend along a direction away from the intermediate flexible strap.   
     
     
         7 . The spring module according to  claim 4 , wherein:
 the spring is divided into a first sub-spring and a second sub-spring,   a middle ring is connected to and is disposed between the first sub-spring and the second sub-spring, and   the middle ring comprises a position-providing opening for the intermediate flexible strap to pass through.   
     
     
         8 . A method for releasing the spring module according to  claim 4 , comprising:
 pulling the fastening member using an external force, so that an interlocked connection of the two buckling members and the first channel is released to release the spring of one of the plurality of elastic units and adjacent springs of the springs of the plurality of elastic units are released successively due to a restoring force of the spring of the one of the plurality of elastic units, so that the entire row or group of the springs of the plurality of elastic units is released to be in the released state.   
     
     
         9 . A spring module, comprising:
 a plurality of elastic units arranged in an array, wherein:
 each of the plurality of elastic units comprises a spring, a base disposed at a lower end of the spring, an upper cover disposed at an upper end of the spring, and one or more intermediate flexible straps connected to the base and the upper cover, 
 the upper cover comprises a channel penetrating through the upper cover along a length direction of the one or more intermediate flexible straps, so that the upper cover has translational freedom relative to the one or more intermediate flexible straps in a direction toward the base, 
 the one or more intermediate flexible straps comprises two first buckling members arranged at intervals, 
 when the spring is in a released state, the two first buckling members are located on an outside of the upper cover and below the upper cover, and 
 when the spring is in a compressed state, the two first buckling members are respectively placed above and below the channel of the upper cover and are interlocked with the channel in a direction of releasing the spring. 
   
     
     
         10 . The spring module according to  claim 9 , wherein:
 a side wall of the channel of the upper cover comprises an opening connected to the channel, and   a width of the opening gradually increases along a direction away from the channel to define a position-providing opening.   
     
     
         11 . The spring module according to  claim 9 , wherein:
 the two first buckling members are arranged on a side wall of the one or more intermediate flexible straps and extend along a direction away from the one or more intermediate flexible straps.   
     
     
         12 . The spring module according to  claim 9 , wherein:
 the spring is divided into a first sub-spring and a second sub-spring,   a middle ring is connected to and is disposed between the first sub-spring and the second sub-spring, and   the middle ring comprises a position-providing opening for the one or more intermediate flexible straps to pass through.   
     
     
         13 . The spring module according to  claim 9 , wherein:
 each of the plurality of elastic units comprises a middle ring disposed on a middle of the spring, and   the middle ring comprises a position-providing opening for the one or more intermediate flexible straps to pass through.   
     
     
         14 . The spring module according to  claim 13 , wherein:
 the one or more intermediate flexible straps comprises two second buckling members arranged at intervals,   the two first buckling members and the two second buckling members are respectively located above and below the middle ring, and   when the spring is in the compressed state, the two second buckling members are placed above and below an insertion hole of the base and the two second buckling members are interlocked with the insertion hole along the direction of releasing the spring.   
     
     
         15 . The spring module according to  claim 9 , wherein:
 a top of the one or more intermediate flexible straps extends radially outward to form a protruding edge,   a width of the protruding edge is greater than a width of the channel, so that the one or more intermediate flexible straps are interlocked with the upper cover in a direction away from the base,   the one or more intermediate flexible straps are a plurality of intermediate flexible straps, and   tops of the plurality of intermediate flexible straps are connected together by the protruding edge.   
     
     
         16 . A method for releasing the spring module according to  claim 9 , wherein:
 the plurality of elastic units are connected to each other, and   the method comprises pulling the upper cover of one of the plurality of elastic units using an external force, so that an interlocked connection of the two first buckling members and the channel of the upper cover is released to release the one of the plurality of elastic units and adjacent springs of the springs of the plurality of elastic units are released successively due to a restoring force of the spring of the one of the plurality of elastic units, so that an entire row or group of the springs of the plurality of elastic units is released to be in the released state.   
     
     
         17 . The spring module according to  claim 9 , wherein:
 the spring is configured as a bottom spring, and   each of the plurality of elastic units comprises a top spring.   
     
     
         18 . An elastic cushion, comprising:
 a soft cushion, and   the spring module according to  claim 1 .   
     
     
         19 . An elastic cushion, comprising:
 a soft cushion, and   the spring module according to  claim 4 .   
     
     
         20 . An elastic cushion, comprising:
 a soft cushion, and   the spring module according to  claim 9 .