Abstract: A power switching apparatus includes a detection circuit, a control circuit and an auxiliary power circuit. The detection circuit comprises a voltage adjusting unit, a delay unit, a first switch unit and an isolation unit. The auxiliary power circuit comprises an auxiliary power input side and an output side. When a main power supplies power normally or the main power stops supplying power but the delay unit continues working in a setting time, the first switch unit is turned on. The isolation unit sends a first signal to the control circuit. The auxiliary power input side does not conduct to the output side. When the main power stops supplying power and the delay unit stops working, the first switch unit is turned off. The isolation unit does not send the first signal to the control circuit. The auxiliary power input side conducts to the output side.

Abstract: A lampshade includes an elongated body, a first frame, a second frame, a first slide rail, a second slide rail, and a first reflection sheet. The elongated body has a first end and a second end which are opposite to each other. The first frame is connected to the first end of the elongated body and has a first surface. The second frame is connected to the second end of the elongated body and has a second surface. The first and second surfaces face toward each other. The first and second slide rails are disposed on the first and second surfaces respectively. The first reflection sheet is disposed between the first and second frame. The first reflection sheet has a first side and a second side which are opposite to each other and respectively disposed in the first and second slide rail.

Abstract: A power switching apparatus includes a detection circuit, a control circuit and an auxiliary power circuit. The detection circuit comprises a voltage adjusting unit, a delay unit, a first switch unit and an isolation unit. The auxiliary power circuit comprises an auxiliary power input side and an output side. When a main power supplies power normally or the main power stops supplying power but the delay unit continues working in a setting time, the first switch unit is turned on. The isolation unit sends a first signal to the control circuit. The auxiliary power input side does not conduct to the output side. When the main power stops supplying power and the delay unit stops working, the first switch unit is turned off. The isolation unit does not send the first signal to the control circuit. The auxiliary power input side conducts to the output side.

Abstract: A backward wheelchair contains two side-frame units, a seat support, and a back support. The two side-frame units are symmetrical and spaced apart, between the two side-frame units is connected a first connecting rod, each side-frame unit includes an auxiliary wheel, each side frame has a main wheel with a manual operating wheel, an armrest, and a handle. The seat support includes an elongated body connecting with a seat portion and is fixed between the two side-frame units, a width of the seat support is less than a distance between the two side-frame units. The backward wheelchair further contains a gate formed on a rear side thereof, and among the seat support and the two side-frame units are defined two passage spaces. The back support is fixed between the two side-frame units so as to facilitate a movement of a patient, and the patient's back contacts with the back support.

Abstract: A movable wheelchair structure contains a base. A sliding mechanism is fixed on the base and includes two rods extending outward from one side of the base, with each rod including an auxiliary wheel extending outward from one end portion thereof. A vertical moving mechanism is fixed on the sliding mechanism. A frame is fixed on one side of the vertical moving mechanism and moves vertically and horizontally with the vertical moving mechanism and the sliding mechanism. A back support axially is coupled with a rear end of the frame. A leg member is axially connected with a front end of the frame. Thus, a user is capable of moving onto a bed or another position, enhancing usage at a hospital and at home.

Abstract: A movable wheelchair structure contains a base; a sliding mechanism fixed on the base and includes two rods extending outward from one side of the base, and each rod including an auxiliary wheel extending outward from one end portion thereof; a vertical moving mechanism fixed on the sliding mechanism; a frame fixed on one side of the vertical moving mechanism and moving vertically and horizontally with vertical moving mechanism and the sliding mechanism; a back support axially coupled with a rear end of the frame; a leg member axially connected with a front end of the frame, such that a user is capable of moving onto a bed or another position, enhancing usage at hospital and home.

Abstract: An electronic target has a base, a sensing assembly and a collector. The base has a body and a stand. The base is an electrical target module and has an outer edge and a front surface. The stand is mounted on the outer edge of the body and hold the body vertical. The sensing assembly is formed on the front surface of the body and has a sticky cushion. The collector corresponds to, is mounted on and protrudes from the stand below the sensing assembly. When a pellet strikes the sticky cushion, the sticky cushion momentarily deforms slightly to hold the pellet momentarily and absorb energy of the pellet. After the pellet momentarily sticks to the sticky cushion, it falls into the collector.