Abstract: A bell device with dual tones for transport vehicles includes a main body, a base, and a trigger. The main body includes two tapering chambers therein and a pinhole located between the chambers. A constant whistling sound is generated for warning approaching cars and pedestrians when wind introduced into one of the two chambers passes through the pinhole. The base is adapted to be fixed on a handlebar and supports the main body, so that the main body is rotatable relative to the base. The trigger includes a flexible operating member which has at least a knocking portion used to beat the main body and induce a warning sound when the operating member is manipulated.

Abstract: A bell device with dual tones for transport vehicles includes a main body, a base, and a trigger. The main body includes two tapering chambers therein and a pinhole located between the chambers. A constant whistling sound is generated for warning approaching cars and pedestrians when wind introduced into one of the two chambers passes through the pinhole. The base is adapted to be fixed on a handlebar and supports the main body, so that the main body is rotatable relative to the base. The trigger includes a flexible operating member which has at least a knocking portion used to beat the main body and induce a warning sound when the operating member is manipulated.

Abstract: A building-block-combined-type high power transformer includes a plurality of identical iron core bodies, a plurality of conductive plates and a plurality of insulating plates. Each iron core body is a polygon in shape and is provided with an outer side wing and an inner side wing extending in parallel thereon, and an open channel between the outer and inner side wings. The side(s) of the iron core bodies closer to the inner side wing are partially in contact with one another to form a larger iron core structure, and the inner side wings are connected together to form a combined portion. The plurality of conductive plates are stacked in the open channels of the iron core bodies. Each conductive plate includes an opening into which the combined portion is inserted, and each opening includes a guided channel for external connection. Each guided channel is formed with a pin on either side thereof. One insulating plate is sandwiched between two conductive plates. As such, a high power transformer is formed.

Abstract: A building-block-combined-type high power transformer includes a first iron core body , a second iron core body , a plurality of plate bodies, and a plurality of isolating bodies. The first iron core body and the second iron core body have a first side wing part and a second side wing part respectively at both sides thereof. Both of the first side wing part and the second side wing part being a circular shape at both ends respectively thereof have a first open channel and a second open channel formed between thereof where the second iron core body is in contact with the first iron core body. Each of the plate bodies being positioned in both the first open channel and second open channel has an open hole, for containing both of the first side wing part, and the second side wing part, and a guided channel that is positioned on the second side of the open hole.