| CPC A47G 9/1027 (2013.01) [A47G 9/1081 (2013.01); A47G 2009/1018 (2013.01)] | 8 Claims |
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1. A static equilibrium adjusting system, comprising: at least one bladder, which has an interior space in which an elastic restoration device is arranged to support an external pressing force; at least one regulation valve, which is in communication with the bladder to provide a reverse-resisting force that is adjustable to resist an air pressure generated, in a direction toward the regulation valve, by the bladder in receiving the external pressing force acting thereon; the external pressing force pressing down the bladder and the elastic restoration device, and through selection among bladders having interior spaces of different sizes and selection among elastic restoration devices of different densities and elastic properties, negative pressure rebounding forces of different magnitudes are generated to cooperate with the reverse-resisting force generated through setting of adjusting of the regulation valve, so as to provide the bladder with a supporting force of a negative pressure difference to achieve an effect of static equilibrium among the external pressing force, the bladder, and the regulation valve, and the bladder is adjustable for supportability and height and the bladder is automatically positioned and shaped through an effect of negative pressure after the adjusting of the supportability and height,
wherein the regulation valve comprises a valve opening, a valve diaphragm, an elastic element, and a push member, wherein the valve opening is arranged in an interior of the regulation valve and in communication with the bladder; the valve diaphragm is positionable in tight engagement with and seals and closes the valve opening; the elastic element is in elastic contact engagement with the valve diaphragm; the push member is arranged on the regulation valve in a pushable manner to selectively compress the elastic element, wherein the push member is movable relative to the regulation valve to selectively set and fix displacement of the push member relative to the regulation valve at different extents so as to set the elastic member at different states of deformation, including a fully compressed state at which the elastic element is fully compressed between the valve diaphragm and the push member so as to have the valve opening securely closed by the valve diaphragm and the valve diaphragm immobile relative to the valve opening;
wherein the bladder is in communication with a self-charging valve, the self-charging valve comprising a plurality of apertures, an airtight sealing element being arranged in an interior of the self-charging valve and between the plurality of apertures, the airtight sealing element being selected as an elastic material, so that the airtight sealing element elastically seals and closes the apertures; and wherein the self-charging valve is provided, in an interior thereof, with a separation board to support an additional airtight sealing element, so that when the bladder carries out air suction for self-charging, the additional airtight sealing element provides an airtight sealing effect for preventing the bladder from sucking in air from the regulation valve and a tube line thereof; and
wherein a concave surface is arranged on a circumference of the valve opening of the regulation valve, and the valve diaphragm is provided with a convex surface corresponding to the concave surface, so that the concave surface and the convex surface are in matched engagement with each other and a positioning peg is provided on an underside of the valve diaphragm to extend through the valve opening but not blocking and contacting the valve opening.
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