Multiple air compartment adjustment device

Abstract

A multiple air compartment adjustment device includes at least two air compartments, an adjustment unit, at least one positioning member. The air compartments are arranged in a tiered form. The air compartments include, in an interior thereof, an elastic body. The adjustment unit includes at least two valve assemblies, which include a connection valve, a self-charging valve, and an operation section. The positioning member is movably disposed on the adjustment unit and one of the positioning member includes an activation section. The air compartments are automatically operated to adjust for high, low, soft, stiff, and shape according to a magnitude of a pressing force and after the pressing force acting disappears, inflation can be automatically carried out for shape restoration to prevent the elastic body from elastic fatigue and deformation.

I claim: 
     
         1 . A multiple air compartment adjustment device, comprising:
 at least two air compartments, which are arranged in a tiered form, the air compartments comprising an elastic body, the air compartments being connected with an air tube;   an adjustment unit, which comprises at least two valve assemblies, the valve assemblies being each connected to the air tubes of the air compartments of each tier, the valve assemblies comprising a connection valve, a self-charging valve, and an operation section, the connection valve being in communication with the self-charging valve, the connection valve being connected with the air tube, the operation section being operable to control air flowing or not flowing between inside and outside of the connection valve; and   at least one positioning member, which is movably arranged on the adjustment unit, wherein one of the positioning member comprises an activation section to activate, when the positioning member is moved to a first position, the connection valve of one of the valve assemblies and to activate, when moved to a second position, the connection valve of the other one of the valve assemblies.   
     
     
         2 . The multiple air compartment adjustment device according to  claim 1 , wherein the adjustment unit is in the form of a case, the adjustment unit having a through hole, the positioning member comprising an activation section at one side thereof, the activation section being arranged in an interior of the adjustment unit, the activation section being coupled, at one side thereof, to a pushing section, the pushing section having a part forming a post that is received, in a movable manner, through the through hole, the pushing section having another part positioned on a surface of the adjustment unit, so that the pushing section is movable along the through hole of the adjustment unit and the positioning member is prevented from separating from the adjustment unit. 
     
     
         3 . The multiple air compartment adjustment device according to  claim 2 , wherein the adjustment unit is provided, on the surface thereof, with multiple markings, and the pushing section comprises a projection for pointing the markings at different locations during a movement of the positioning member in order to provide an indication of positions of stages for adjustment positioning. 
     
     
         4 . The multiple air compartment adjustment device according to  claim 1 , wherein the adjustment unit is provided, on an inside wall thereof, with multiple retention notches arranged in a paired and opposing form, the activation section being provided, on two side edges thereof, with two opposite retention flanges, the retention flanges being retainable in the retention notches, the adjustment unit being selected from plastic materials so that the retention flanges are movable to dislodge from the retention notches for being retained in another ones of the retention notches, thereby providing a multiple-stage-switchable adjustment positioning effect. 
     
     
         5 . The multiple air compartment adjustment device according to  claim 1 , wherein in an embodiment of the activation section, the activation section comprises a U-shaped portion, the U-shaped portion having two branches each provided with a first pressing section and a second pressing section projecting from an undersurface thereof for pressing down a side rim of the operation section of the valve assemblies. 
     
     
         6 . The multiple air compartment adjustment device according to  claim 5 , wherein the first pressing section and the second pressing section have a slope section for spreading resistance caused by pressing of the side rim of the operation section of the valve assemblies. 
     
     
         7 . The multiple air compartment adjustment device according to  claim 1 , wherein the connection valve is formed with a through hole, the connection valve being provided, in an interior thereof, with an operation bar, the operation bar being received, in a movable manner, through the through hole of the connection valve to couple to the operation section, the operation bar being provided, on a lower end, with a step portion, the step portion having a lower side in engagement with and biased by a first elastic body to have the step portion close the through hole. 
     
     
         8 . The multiple air compartment adjustment device according to  claim 1 , wherein the self-charging valve is formed with an opening, the self-charging valve being provided, in an interior thereof, with an airtight sealing member, the airtight sealing member being selected from elastic materials, the airtight sealing member having an upper side in engagement with and biased by a second elastic body to have the airtight sealing member close the opening. 
     
     
         9 . The multiple air compartment adjustment device according to  claim 1 , wherein the other one of the positioning member comprises an activation section, which activates the connection valve of the other one of the valve assemblies when the other one of the positioning member is moved.