Abstract: An improved pump control device includes a control device that controls power supplied to a pump, a working device that is connected to the pump to control fluid to flow, and a detection device for detecting the working device. The detection device, when detecting the working device is making a specific operation, transmits operation information to the control device to change the operation condition of the pump so as to achieve advantages of easy use, power saving, and cost reduction.

Abstract: An improved pump control device includes a control device that controls power supplied to a pump, a working device that is connected to the pump to control fluid to flow, and a detection device for detecting the working device. The detection device, when detecting the working device is making a specific operation, transmits operation information to the control device to change the operation condition of the pump so as to achieve advantages of easy use, power saving, and cost reduction.

Abstract: A cap with a suction type spray head includes an air guiding chamber, an intake passage, an outgoing passage, a liquid sucking mouth and an air pressure balancing aperture for a container with a sprayer. The liquid in the container can be sucked out due to air pressure difference between the sucking mouth and the interior of the container. The outgoing passage at the outer end thereof is a spraying outlet, which face the liquid sucking mouth so that the liquid out of the liquid sucking mouth is atomized with the air sprayed from the spraying outlet.

Abstract: A cap with a suction type spray head includes an air guiding chamber, an intake passage, an outgoing passage, a liquid sucking mouth and an air pressure balancing aperture for a container with a sprayer. The liquid in the container can be sucked out due to air pressure difference between the sucking mouth and the interior of the container. The outgoing passage at the outer end thereof is a spraying outlet, which face the liquid sucking mouth so that the liquid out of the liquid sucking mouth is atomized with the air sprayed from the spraying outlet.

Abstract: An air compressor for art designing includes a casing and a motor mounted in the casing. A cylinder is secured on a top portion of the casing. The motor is provided to drive a crank that includes a free end having a piston mounted thereon. The piston is reciprocally movably received in the cylinder for compressing air. A partition is longitudinally mounted to the cylinder for airtightly closing the cylinder. A check valve is longitudinally mounted to the partition and extends to communicate with the cylinder to prevent the compressed air from flowing back into the cylinder when the piston is downward moved. A top cover is airtightly mounted to the partition and has a cavity defined to receive the check valve. The compressed air is decompressed in the cavity such that the air compressor can provide a stable air current.

Abstract: A miniature air compressor includes a motor, a compression cylinder, a lower valve seat, an upper valve seat, and a noise suppression cylinder. Thus, the miniature air compressor may provide a stable pressurized air flow whose noise and impurity may be eliminated by the noise suppression cylinder, thereby enhancing the usage effect of the injection pen device. In addition, the miniature air compressor has a simple construction, may be assembled and amended easily and conveniently, and may reduce the cost of production.