Abstract: A clutch for a rotary drive device includes a rotary plate synchronously rotated with a sun gear of a planetary gear set, at least one pawl pivotally mounted onto the rotary plate, an engaging ring sleeved on the rotary plate and surrounding the at least one pawl, and a drive plate co-axially and rotatably mounted onto the rotary plate and abutting against the engaging ring. The planetary gear set is repeatedly operated and the pawls is automatically engaged to/disengaged from the drive plate for reducing noise during operating and lengthening the use life of the clutch for a rotary drive device.

Abstract: A clutch for a rotary drive device includes a rotary plate synchronously rotated with a sun gear of a planetary gear set, at least one pawl pivotally mounted onto the rotary plate, an engaging ring sleeved on the rotary plate and surrounding the at least one pawl, and a drive plate co-axially and rotatably mounted onto the rotary plate and abutting against the engaging ring. The planetary gear set is repeatedly operated and the pawls is automatically engaged to/disengaged from the drive plate for reducing noise during operating and lengthening the use life of the clutch for a rotary drive device.

Abstract: A centrifugal water separator for mop includes a bucket, a separating device and a drive device respectively mounted in the bucket. A first room, a second room and a third room respectively defined in the bucket, wherein an L-shaped partition is formed in the bucket to separate the third room from the first room and the second room, and the first room laterally communicates with the second room. The separating device includes an axle perpendicularly extending through the partition and a separating trough securely mounted to an upper end of the axle. The drive device includes a pedal mounted thereon for driving the axle with the separating trough when being stepped. The drive device includes a planet gear set sleeved on the axle and connected to the pedal for effectively drive the axle and used as a speed increaser.

Abstract: A centrifugal water separator for mop includes a bucket, a separating device and a drive device respectively mounted in the bucket. A first room, a second room and a third room respectively defined in the bucket, wherein an L-shaped partition is formed in the bucket to separate the third room from the first room and the second room, and the first room laterally communicates with the second room. The separating device includes an axle perpendicularly extending through the partition and a separating trough securely mounted to an upper end of the axle. The drive device includes a pedal mounted thereon for driving the axle with the separating trough when being stepped. The drive device includes a planet gear set sleeved on the axle and connected to the pedal for effectively drive the axle and used as a speed increaser.

Abstract: A nozzle device for a vacuum container is provided. The nozzle device has a molded and flexible seat member with a cover member attached. The center of the cover member has convex section which will become a concave one when the container is vacuumed. As such, a user could easily tell whether the container is vacuumed or not. Additionally, the container could be further equipped with a ventilated inner layer to facilitate the vacuuming of the container.

Abstract: A pump includes a cylinder housing having a mouth for a fluid to flow out of the housing and a port for the fluid to flow into the housing, a piston slidably engaged in the housing. A tube is coupled to the piston for allowing the fluid to flow out through the tube when the piston moves away from the mouth. A check valve may block the tube when the piston moves toward the mouth. Another check valve may block the port when the piston moves toward the port. Another housing includes a mouth for coupling and supplying a pressurized fluid to the previous housing.

Abstract: A hose coupler includes a tube having an inlet port to receive water and an outlet port for outward flowing of the water. A water temperature detecting device is engaged into the tube to detect water temperature of the water flowing through the tube, and a warning signal generating device is used to generate a warning signal when the water temperature reaches a predetermined temperature. The warning signal generating device includes one or more light devices or sound generating device to generate warning lights or sounds, and a switch device having two terminals engaged into the tube, and to be electrically coupled together with the water flowing through the tube.

Abstract: A pump includes a cylinder housing having a mouth for a fluid to flow out of the housing and a port for the fluid to flow into the housing, a piston slidably engaged in the housing. A tube is coupled to the piston for allowing the fluid to flow out through the tube when the piston moves away from the mouth. A check valve may block the tube when the piston moves toward the mouth. Another check valve may block the port when the piston moves toward the port. Another housing includes a mouth for coupling and supplying a pressurized fluid to the previous housing.

Abstract: A sprayer device may receive water from a water reservoir, and includes a light device, and a device for actuating the light device with the water flowing through the sprayer device. The light device may be energized to light the mist or the spraying water out of the sprayer device for decorative purposes. The sprayer device includes a barrel coupled to the water reservoir. A switch device includes two conductor blades disposed in the barrel and coupled to the light device for being actuated by the water flowing through the barrel.

Abstract: A sprayer device includes a housing coupled to a water reservoir, a block having a passageway and a number of outlets. A locking member is slidably received in the passageway of the block to block some of the outlets of the block alternatively when the blocking member is slided along the passageway of the block. A number of paddle wheels are rotatably received in the block for controlling the outward flowing water. A shaft is received in the block, and a cap is threaded to the block and has a valve seat for engaging with the shaft to control the outward flowing water.