A sleeping pad with a fast-inflation and deflation air nozzle includes a sleeping pad body with an air nozzle. The air nozzle includes a base, an air channel and a sealing cover. The sealing cover is detachably and sealedly inserted into the air channel. The air channel is detachably and sealedly inserted into the base. A deflating gasket is arranged at a top of a support in the air channel. A bottom of the support is provided with an inflating gasket. A switch between an inflation mode and a deflation mode is realized through switching positions of a first baffle plate and a second baffle plate of a switch baffle plate.

Novel air valve includes a valve stem assembly and a storage space provided on one side of the valve stem assembly and used for storing an inflating component; the valve stem assembly includes a valve base and a valve core capable of elastically retactable relative to the valve base; the valve base is provided with an opening, and the bottom of the opening having a core cavity enabling the valve core to expand and contract elastically therein; and vents are disposed in a circumferential direction of the core cavity; the valve core is provided with a sealing block for sealing the opening; and a pressure spring is disposed between the sealing block and the bottom of the core cavity for pressing the sealing block to block the opening.

A valve for an inflatable bladder is provided with a valve seat including an annular flange and flexible supports surrounded by the annular flange; a positioning member surrounded by the flexible supports, the positioning member including a central hole; a diaphragm having a central portion secured to the central hole and an outer edge releasably secured to a bottom of the valve seat; and a cap for securing onto the valve seat.

An inflator valve connector includes a housing, a connection assembly, a valve seat, and a pushing member. The connection assembly is rotatably arranged in the housing and includes a first connection hole adapted to connect a Presta valve and a second connection hole adapted to connect a Schrader valve. The valve seat has a first abutting portion faced to the first connection hole and adapted to abut a lock nut of the Presta valve, and a second abutting portion faced to the second connection hole and adapted to abut a valve core of the Schrader valve. The pushing member removably contacts the connection assembly and has a pushing portion adapted to enter the housing via the first connection hole and to push against the first abutting portion, causing the valve seat to move relative to the housing and to close to the second connection hole.

An anti-spray joint structure for a connection of an air nozzle of a tire and a connection hose of an air compressor, the air compressor contains: a box, a sealant supply can, and a connection hose. The box includes a body of the air compressor. The sealant supply can includes an open segment and a supply tube. The connection hose includes a first segment and a second segment. The second segment has an anti-spray connector which includes a fitting sleeve, and the fitting sleeve has a threaded orifice, a through orifice, and a projected shoulder. The cylindrical base includes a cylindrical room, a stepped coupling segment, a conduit, and a first stepped portion. The valve bolt includes a post, a connecting disc, multiple spaced slots, and a first seal ring. A lock element includes at least one tangent plane, a stem, and a hollow cavity.

An anti-spray structure for a connection of an air nozzle of a tire of a vehicle and a connection hose of an air compressor, and the air compressor contains: a box, a sealant supply can, and a connection hose. The box accommodates the air compressor. The sealant supply can includes an open segment and a supply tube. The connection hose includes a first segment and a second segment. The second segment has an anti-spray connector including a fitting sleeve. The fitting sleeve has a threaded orifice, a through orifice, and a projected shoulder. A cylindrical base includes a cylindrical room, a stepped coupling segment, a conduit, and a first stepped portion. A first spring is received into the cylindrical room. A valve bolt includes a post, a connecting disc, spaced slots, and a first seal ring. A lock element includes a hollow cavity, a hexagonal tab, and a tilted extension.

An inflatable seal system with retractable load bearing feature providing sealing in the annulus between a ball inside a pipe, with minimal pressure applied to inflate the inflatable seal, by using a retractable load bearing construct to hold the ball in place against the high-pressure forces in the pipe.

A valve cap assembly for being attached to an air valve and removably covering an end of the air valve includes a hoop, a cap, and an arched tether connecting the hoop and the cap. The hoop attaches the valve cap assembly to the air valve. The cap removably covers the end of the air valve to protect the end of the air valve. Both the hoop and the cap form a dependable interference fit between the hoop or cap and the valve stem to retain the hoop on the valve stem and to retain the cap covering the end of the air valve on the air valve. The arched tether enables the cap to be sufficiently spaced away from the hoop to place the cap over the hoop while remaining between the cap and the hoop on one side of the air valve when the valve cap assembly is attached to the air valve with the cap covering the end of the air valve.

A mouthpiece includes: a mouthpiece main body portion including a tubular member to which an air supply device is connected on one end side and a tire valve is connected on the other end side; an annular protruding portion which is formed at a required position on the outer circumferential portion of the mouthpiece main body portion; a tire valve insertion hole provided in a tire-valve-side tip portion of the mouthpiece main body portion; an O-ring arranged on the air supply device side inside the tire valve insertion hole; and a back-up ring that presses the O-ring from the air supply device side of the O-ring; an actuation body having a substantially convex shape in which a cylindrical tip portion is reduced in diameter.

A valve locking system for inflatable underwater equipment includes an inlet valve positioned inside the main body of a power unit, and a retaining element of the valve also positioned in the main body perpendicularly to the actuation and mounting axis of the valve.