A multi-functional, portable device for use in situations where electricity is not available or convenient is disclosed. A portable safety device includes a power charger and air compressor that may safely jump start a vehicle and recharge portable electronic devices, such as phones and laptop computers, as well as inflate vehicle tires or other inflatable objects, when a standard external power source is not convenient. It may also be used for providing an emergency light source.

An inflating device includes an air pump, a valve engaging head, and a pushing apparatus disposed on the air pump and selectively engaging and disengaging the valve engaging head. The valve engaging head includes a main body, a connection assembly coupled to the main body and having a connection hole for a Presta valve and another connection hole for a Schrader valve, and a valve seat movably disposed in the main body. The connection assembly has a receiving hole and the valve seat is movably disposed in the receiving hole. The pushing apparatus selectively contacts and disengages from the connection assembly. The pushing apparatus has a pushing portion ii adapted to drive the valve seat. The pushing apparatus engaging the valve engaging head includes the pushing portion pushing the first abutting portion, thereby driving the valve seat toward the second connection hole.

A connecting head between adapted to connect a compressed air dispensing device and an element in which to insufflate said compressed air is involved, which comprises a connecting body (2) adapted to be fastened to the dispensing device by means of a flexible duct, a duct (3) being present within said body, and adapted to connect the flexible duct and the element within which to insufflate, which is connectable to the body by means of a valve (4) with threaded end (5) that is insertable into an outlet hole (6) of the duct (3), an arm (7) being also present, pivoted to the body (2) at an axis (8) of the arm (7) perpendicular to the longitudinal axis (9) of the body, an elastic means (10) being also provided, acting on said arm (7), determining the reversible interlock fastening between the body (2) and valve (4), said fastening being separable by an action on the arm (7), overcoming the action of the elastic means (10), wherein said arm (7) presents a first portion (7″) adapted to be in contact, in the position of rest, with the side (12) of the thread of the threaded end (5) of the valve (4), thereby determining the reversible engagement of the connecting body (2) with said valve (4). Said head is characterised by the fact that the first portion (7″) is sloped with respect to a second portion (7′) of the arm (7) placed before the axis (8), in order to form an acute angle (α) with said second portion (7′).

A connecting head between adapted to connect a compressed air dispensing device and an element in which to insufflate said compressed air is involved, which comprises a connecting body (2) adapted to be fastened to the dispensing device by means of a flexible duct, a duct (3) being present within said body, and adapted to connect the flexible duct and the element within which to insufflate, which is connectable to the body by means of a valve (4) with threaded end (5) that is insertable into an outlet hole (6) of the duct (3), an arm (7) being also present, pivoted to the body (2) at an axis (8) of the arm (7) perpendicular to the longitudinal axis (9) of the body, an elastic means (10) being also provided, acting on said arm (7), determining the reversible interlock fastening between the body (2) and valve (4), said fastening being separable by an action on the arm (7), overcoming the action of the elastic means (10), wherein said arm (7) presents a first portion (7″) adapted to be in contact, in the position of rest, with the side (12) of the thread of the threaded end (5) of the valve (4), thereby determining the reversible engagement of the connecting body (2) with said valve (4). Said head is characterised by the fact that the first portion (7″) is sloped with respect to a second portion (7′) of the arm (7) placed before the axis (8), in order to form an acute angle (α) with said second portion (7′).

An enclosure for air compressors is generally composed of a first shell body and a second shell body, wherein the first shell body defines a plurality of through holes, and the second shell body is formed with a plurality of snap joints. Each through hole is defined by a cylindrical surface and a substantially conical surface, between which a step is defined. In use, the snap joints can be inserted into the through holes respectively to have the snap joints snatched by the steps 14 formed in the through holes, so that the first and second shell bodies can be quickly assembled. In addition, a disassembly tool can be inserted into each through hole to have the snap joints removed from the through holes, so that the enclosure can be quickly disassembled.

An enclosure for air compressors is generally composed of a first shell body and a second shell body, wherein the first shell body defines a plurality of through holes, and the second shell body is formed with a plurality of snap joints. Each through hole is defined by a cylindrical surface and a substantially conical surface, between which a step is defined. In use, the snap joints can be inserted into the through holes respectively to have the snap joints snatched by the steps 14 formed in the through holes, so that the first and second shell bodies can be quickly assembled. In addition, a disassembly tool can be inserted into each through hole to have the snap joints removed from the through holes, so that the enclosure can be quickly disassembled.

The application discloses a plastic air pump mechanism, which comprises a plastic body, a plastic output unit and an actuating unit; the plastic body has an integrally forming structure, which comprises a plastic cylinder and a plastic bracket disposed at an air inlet end of the plastic cylinder; the plastic output unit is detachably connected to an air outlet end of the plastic cylinder; the actuating unit comprises a motor, plastic gears disposed on the plastic bracket and electrically connected to the motor, and a plastic rocker arm driven by the plastic gears to realize reciprocating of a piston in the plastic cylinder; and a large body insert of metal is provided in an air outlet of the plastic cylinder. The plastic air pump mechanism can reduce product weight, simplify production and installation processes, save materials and labor costs, and reduce self weight of a vehicle.

A vehicle and a control method are capable of generating compressed air using a motor of a hybrid vehicle so as to perform cleaning/care of the hybrid vehicle, without an additional or separate device. The vehicle includes an engine including an intake pipe provided to suck outside air and an exhaust pipe provided to discharge inside air, an opening degree control valve provided at a rear end of the exhaust pipe, and a motor configured to generate power for driving a wheel and configured to drive a piston of the engine by using a portion of the power. In response to the opening degree control valve being in a closed state, and in response to the engine being in a non-combustion state, compressed air is generated in the exhaust pipe by driving the piston of the engine with the power of the motor.

The utility model relates to a new type of Gas-filling device, which includes a support tube with hollow tubular structure. The upper side wall of the said support tube is provided with air inlet, and the support tube is provided with an integrated pressure measuring piston sliding along the central axis of the support tube. The integrated pressure measuring piston includes one-way valve piston body, hollow cylinder, buffer chamber, barometer and anti-skid handle that are sealed connection in sequence from bottom to top, and the side wall of the said buffer chamber is provided with air outlet, the side wall of the support tube is provided with air outlet hose which is matched and sealed in threaded connection with the air outlet, and honeycomb base is provided under the support tube, and an end cover is sealed and provided on the honeycomb base. The invention belongs to the technical field of Gas-filling devices, and specifically provides a new type of Gas-filling device appropriate for production and life with high practicability, simple operation, accurate air pressure measurement, good stability, durability, high safety factor, convenient dis-assembly and assembly, convenient carrying and storage, and low cost.

The utility model relates to a new type of Gas-filling device, which includes a support tube with hollow tubular structure. The upper side wall of the said support tube is provided with air inlet, and the support tube is provided with an integrated pressure measuring piston sliding along the central axis of the support tube. The integrated pressure measuring piston includes one-way valve piston body, hollow cylinder, buffer chamber, barometer and anti-skid handle that are sealed connection in sequence from bottom to top, and the side wall of the said buffer chamber is provided with air outlet, the side wall of the support tube is provided with air outlet hose which is matched and sealed in threaded connection with the air outlet, and honeycomb base is provided under the support tube, and an end cover is sealed and provided on the honeycomb base. The invention belongs to the technical field of Gas-filling devices, and specifically provides a new type of Gas-filling device appropriate for production and life with high practicability, simple operation, accurate air pressure measurement, good stability, durability, high safety factor, convenient dis-assembly and assembly, convenient carrying and storage, and low cost.