Abstract: A solenoid valve includes a holder, which holds a locating rod that defines an axial through hole for quick discharge of an air, a coil assembly, a magnetic actuating rod axially slidably mounted in the coil assembly, an exhaust valve mounted in the magnetic actuating rod and defining an exhaust hole, a control member for regulating the passage of the exhaust hole, a spring stopped between the actuating rod and the locating rod, and a seal provided at the front side of the magnetic actuating rod for stopping against the locating rod to block the axial through hole of the locating rod for exhaust of the air through the exhaust hole of the exhaust valve at a slow speed.

Abstract: A solenoid valve includes a holder, which holds a locating rod that defines an air discharging hole for quick discharge of an air, a coil assembly, an actuating rod axially slidably mounted in the coil assembly, a spring stopped between the actuating rod and the locating rod, a flexible seal for sealing the air discharging hole and the coil assembly is energized to move the actuating rod toward the locating rod, and a slow-speed air discharging hole, which may be formed in the locating rod, the actuating rod, or the flexible seal for discharging of an air after blocking of the air discharging hole by the seal.

Abstract: A motor-based linear actuator includes a coil assembly housed in a housing and holding two coils, a driving assembly surrounded by the coils and rotatable by the magnetic force induced upon connection of electric current to the coils, a linear guider fixedly, which is fastened to the housing and defines therein a sliding hole and a plurality of sliding grooves in the sliding hole, and an actuating assembly inserted through the sliding hole and coupled to the sliding grooves and threaded onto a front screw rod of the driving assembly for reciprocating motion along the sliding grooves during forward/backward rotation of the driving assembly.

Abstract: A leadscrew set is installed on a stepping motor which comprises a coil bobbin, the leadscrew set includes a leadscrew, which has a shaft body, a screw portion formed on periphery of the shaft body, a magnet connecting portion connected on an end of the shaft body, two gluing portions formed concave on the magnet connecting portion, each gluing portion has a gluing surface; a magnet part, which has a barrel body, a leadscrew fitting hole formed inside the barrel body and positioned at inward of the coil bobbin and the magnet connecting portion of the leadscrew; and a glue member, which glued between the gluing portions of the leadscrew and the leadscrew fitting hole of the magnet part.

Abstract: A solenoid is disclosed to include a mount seat has a receiving housing forming a receiving room; a magnet assembly has a magnet part installed inside the receiving room of the mount seat; a spindle set has a spindle, a coil wound around the spindle and positioned inside the magnet part of magnet assembly, and a actuating against portion connected at an end of the spindle; a spring member has a spindle connect portion connected to the spindle set, a spring-back portion connected to the spindle connect portion and providing elastic deformation and spring back, and a seat connect portion connected between the spring-back portion and the receiving housing of the mount seat.

Abstract: An air pump includes a mount member having a main body and a chamber. An air bag set has a substrate, two air bags, each of which have an air chamber and a linking portion. An insulating plate has a plate member, two inlets and two outlets communicated with the air chambers of the air bags respectively. A ventilation part has a pad member, two inlet valves and two outlet valves, both of which are communicated with the inlets and the outlets of the insulating plate respectively. An air guide device has a main member, two inlets and two outlets, both of which are communicated with the inlet and outlet valves of the ventilation part respectively. A linking assembly has rotary base and a linking portion connected to the linking portion of the air bag set.