A device for preventing excessive increase of an internal pressure of a rolling assembly, the rolling assembly having a rotation axis and comprising a wheel and a tire, the tire being mounted onto the wheel creating an inner cavity surrounded by a wheel internal surface and a tire internal surface, comprises a cold spot placed in the inner cavity of the rolling assembly for condensing vapor contained in a gas filled in the inner cavity.

A tire inflation tool is configured to connect on a tire valve of a tire, and the tire valve includes an air valve. The tire inflation tool contains: a fitting tube, a driving rod, and an air connector. The fitting tube includes a first segment, a second segment, and an air conduit. An inlet joint is defined between the first segment and the second segment and is communicated with the air conduit, and a coupling portion is formed on the first segment. The driving rod is movable and rotatable reciprocally between a first position and a second position. The driving rod includes a manipulation portion and a take portion. When the driving rod actuates the air valve to move toward the second position, the tire is communicated with an external environment via the tire valve, the air conduit and the inlet joint, thus increasing an inflating area of air.

A tire inflation tool is configured to connect on a tire valve of a tire, and the tire valve includes an air valve. The tire inflation tool contains: a fitting tube, a driving rod, and an air connector. The fitting tube includes a first segment, a second segment, and an air conduit. An inlet joint is defined between the first segment and the second segment and is communicated with the air conduit, and a coupling portion is formed on the first segment. The driving rod is movable and rotatable reciprocally between a first position and a second position. The driving rod includes a manipulation portion and a take portion. When the driving rod actuates the air valve to move toward the second position, the tire is communicated with an external environment via the tire valve, the air conduit and the inlet joint, thus increasing an inflating area of air.

A vehicle-mounted air compressor includes an air compressor main body and a bottle cap assembly including bottle cap and sealing and flow guiding components. The bottle cap component is at the air compressor main body, has air inlet/outlet openings, and connected to the air compressor main body via the air inlet opening. The sealing and flow guiding component is at the bottle cap component and includes sealing and flow guiding portions, the former surrounding the latter, and the latter covering the air inlet opening and having at least one air inlet hole and an air outlet hole and connected to the air inlet opening via the air inlet hole and connected to the air outlet opening via the air outlet hole. An airflow from the air compressor main body passes through the air inlet opening, the air inlet hole, the air outlet hole, and the air outlet opening in sequence.

A vehicle-mounted air compressor includes an air compressor main body and a bottle cap assembly including bottle cap and sealing and flow guiding components. The bottle cap component is at the air compressor main body, has air inlet/outlet openings, and connected to the air compressor main body via the air inlet opening. The sealing and flow guiding component is at the bottle cap component and includes sealing and flow guiding portions, the former surrounding the latter, and the latter covering the air inlet opening and having at least one air inlet hole and an air outlet hole and connected to the air inlet opening via the air inlet hole and connected to the air outlet opening via the air outlet hole. An airflow from the air compressor main body passes through the air inlet opening, the air inlet hole, the air outlet hole, and the air outlet opening in sequence.

An inflator head includes a body with an air inlet that receives pressurized gas from a source of pressurized gas, a sheath extending through the body, and a shaft slidably received by the sheath. The shaft includes a primary conduit extending a length of the shaft and opening to a first shaft end, as well as a inflation conduit extending through a sidewall of the shaft from an exterior of the sidewall to the primary conduit. A cap having a valve coupling end is attachable to the first shaft end, an actuating pin having a first pin end and a second pin end is partially housed within the cap or is integral to the first shaft end. The inflator nozzle may engage and selectively open a Presta valve and a Schrader valve.

An inflator head includes a body with an air inlet that receives pressurized gas from a source of pressurized gas, a sheath extending through the body, and a shaft slidably received by the sheath. The shaft includes a primary conduit extending a length of the shaft and opening to a first shaft end, as well as a inflation conduit extending through a sidewall of the shaft from an exterior of the sidewall to the primary conduit. A cap having a valve coupling end is attachable to the first shaft end, an actuating pin having a first pin end and a second pin end is partially housed within the cap or is integral to the first shaft end. The inflator nozzle may engage and selectively open a Presta valve and a Schrader valve.

A tire air pressure management system (100) includes: an acquisition processing portion (61) that acquires an air pressure and an air temperature of a tire (11) attached to a vehicle (1); a correction processing portion (62) that corrects the air pressure that has been acquired by the acquisition processing portion (61) together with the air temperature, based on a difference between the air temperature and a predetermined reference temperature; and a first output processing portion (63) that outputs determination information that is generated based on the air pressure after correction by the correction processing portion (62) and is used to determine whether or not the tire (11) needs air pressure adjustment.

A tire air pressure management system (100) includes: an acquisition processing portion (61) that acquires an air pressure and an air temperature of a tire (11) attached to a vehicle (1); a correction processing portion (62) that corrects the air pressure that has been acquired by the acquisition processing portion (61) together with the air temperature, based on a difference between the air temperature and a predetermined reference temperature; and a first output processing portion (63) that outputs determination information that is generated based on the air pressure after correction by the correction processing portion (62) and is used to determine whether or not the tire (11) needs air pressure adjustment.

An automotive emergency start power supply with an inflation function includes: an inflation pump, an internal power supply, and a first circuit board. The inflation pump is provided with a first power device, a detection assembly, and a first check valve; the first power device includes a first driving assembly and a first inflation assembly including a first transmission assembly, first cylinder assembly and connecting pipe; the first driving assembly is configured to provide power to the first inflation assembly, and the first inflation assembly is configured to provide first airflow to the first air outlet portion; the detection assembly is configured to detect air pressure information; and the first check valve is disposed in a first accommodating space formed by the first cylinder assembly and the connecting pipe, and is configured to allow the first power device to provide the first airflow to the first air outlet portion.