Abstract: A spraying device comprises a spraying plate, having a plurality of tiny holes, a vibrating element, set on a periphery of the spraying plate, and driving a vibrating movement thereof, a wrapping layer, made of soft material and tightly surrounding the vibrating element, sealing the vibrating element from the liquid, and a fastening cap, allowing for quick mounting and dismounting of the spraying device; wherein the vibrating movement of the spraying plate causes liquid adjacent to a lower side of the spraying plate to be periodically compressed and thereby to be pressed through the holes of the spraying plate, and wherein the wrapping layer prevents external interference with the vibrating movement, at the same time minimizing transmission losses of vibrational energy, enhancing effectivity of spraying.

Abstract: A notched single-edge thinning scissors is disclosed to have chamfered edges formed in the notched blade between the hair contact side of the notched blade and the left sidewall, right sidewall and bottom wall of each notch, and between the cutting edges of the teeth of the notched blade and the left and right sidewalls of each notch for supporting the hair not to be cut during trimming.

Abstract: An electrical connector includes a plastic base on which one connection space is formed, terminals disposed in the plastic base, and a metal housing covering the plastic base and having one surface formed with an opening through which the connection space is exposed. The metal housing includes a main body and an upper cover. The main body is fixed to the plastic base and has a front surface, two side surfaces and an upper edge formed with one upward fixing piece having one elastic locking piece. The upper cover has downward connection flanges formed on two sides. An inner surface of each flange corresponding to the elastic locking piece is formed with an engaging slot. The upper cover covers the upper edge. The flanges are connected to and located outside the fixing piece, and engage with the elastic locking piece through the engaging slot.

Abstract: A combination lock and padlock combination for visually indicating a key opening permission being allowed or not by forming two opposite marks on a wheel is disclosed. In response to turning the wheel to conceal the marks, a co-owner is aware that a key opening mechanism is disabled. Also, forcedly inserting a key into the key opening mechanism for opening the combination will be futile since a downward movement path of a protrusion on a spring biased shuttle assembly for disengaging with an indentation of the wheel is blocked by either recessed portion of the wheel even if an engagement member of the key opening mechanism is aligned with mated bottom legs of the shuttle assembly.

Abstract: A paper shredder delaying device according to the present invention includes a pushing block installed by the paper feeding entrance inside of a top lid and the two conductors each screwed on one side of the pushing block. When papers are inserted into the paper feeding entrance, the aforesaid pushing block is pushed and thus oppresses the two conductors to conduct power and activates the electrical delaying device for the paper shredder to achieve delaying purpose.

Abstract: A combination lock and padlock combination for visually indicating a key opening permission being allowed or not is disclosed. A wheel includes two opposite projections on one end surface, spaced protuberances on the other end surface, two opposite key opening marks provided on an outer surface, and an annular flange proximate the protuberances, the flange being partially exposed. In response to turning the wheel to conceal the marks, a co-owner is aware that a key opening mechanism is disabled. Also, forcedly inserting a key into the key opening mechanism for opening the combination will be futile since a downward movement path of a protrusion on a spring biased shuttle assembly is blocked by the lower projection even if an engagement member of the key opening mechanism is aligned with mated bottom legs of the shuttle assembly.

Abstract: A micro-droplet generator, comprising a chamber, enclosed by a casing, a spraying plate, having a plurality of spraying holes, a piezoelectric plate, a signal connector, and a storage tank. The piezoelectric plate is mounted inside the chamber, having a fixed end fastened on the casing and a free end performing a bending movement. The input port issues signals that cause the bending movement of the piezoelectric plate. The chamber and the storage tank contain liquid, with a constant difference of liquid levels in the chamber and the storage tank being maintained, so that negative pressure in the chamber is automatically regulated.

Abstract: The present invention relates to an intelligent toy ball, comprising a transparent sphere, a ball bearing bracket enclosed inside the sphere, a colored ball bearing, and two retaining rings that are enveloped on the ball bearing bracket to position the sphere, wherein the ball bearing bracket is provided with a continuous, curved figure-8 track, such that the ball bearing can roll inside the track, and when a user holds the sphere with two hands, he/she can continuously change his/her hand position to facilitate the dual use of hands and brain for educational and entertainment purposes.

Abstract: An electrical connection socket structure, into which a plug of a signal wire is inserted for electrical connection, includes a plastic base formed with a hole, a plurality of terminals disposed in the plastic base, and an insulation block disposed in the plastic base and formed with a contact slant. Each terminal has a pin and an elastic arm. The pin is located below the plastic base and the elastic arm has a contact. When the plug is inserted into the hole of the plastic base, the plug pushes the contact slant of the insulation block and thus moves the insulation block. At least two terminals among the plurality of terminals may be electrically connected to or disconnected from each other according to a displacement of the insulation block.

Abstract: A socket having a structure for grasping solder balls is disclosed. A grasping hole is laterally defined in the solder joint of each terminal of the socket, and a stop wall is formed at the dielectric housing spaced from the grasping hole at a proper distance. The solder ball is secured between the stop wall and the solder joint with a portion of the solder ball being received in the grasping hole. The dimension of the grasping hole is slightly larger than that of a side surface of the solder ball received in the grasping hole, whereby the solder ball is freely movable up and down in the grasping hole of the solder joint. Therefore, when the socket is soldered to the circuit board, the solder balls can automatically fully contact the surface of the circuit board.

Abstract: A dual card type connector includes an insulating body having a first surface on a side thereof. First pins are mounted to the first surface. The insulating body further includes a second surface on the side thereof. Second pins are mounted to the second surface. A cover is mounted to the insulating body. The cover and the first surface of the insulating body together define a first insertion space for releasable engagement with a first electronic card. The cover and the second surface of the insulating body together define a second insertion space for releasable engagement with a second electronic card having a size different from that of the first electronic card. Thus, the dual card type connector can be used with a long, wide card or a short, narrow card without increasing the size of the connector.

Abstract: A shower head assembly includes a first shower head connected to a pipe and a three-way member is connected to the pipe. The three-way member communicates with the pipe, the first shower head and a hose which is connected to a second shower head. A tube is fixedly received in the three-way member and in communication between two paths respectively which are in communication with the first shower head and the hose. A rod is movably inserted in the tube and has two seal members on two ends thereof. A control mechanism is connected to the handle of the second shower head and able to cause the change of water pressure to move the rod such that the user can operate the control mechanism on the handle of the second shower head to control the water flow.

Abstract: A slotter provided with simultaneously two-way rotary saw blades comprises: an input shaft connected to a gear box by a power source, wherein a driving gear is disposed at the end of the input shaft of the gear box, a first driven gear engages with said driving gear and connects with a first driving shaft of which one end extends out of the gear box and retains a first saw blade. Furthermore, a second driven gear engages with the driving gear and connects with a transmitting gear at a second driving shaft, wherein said transmitting gear further engages with a third driven gear which mounted at the outer portion of first driving shaft by using a bearing, a second saw blade is disposed at a bearing seat of third driven gear such that the first saw blade and the second saw blade can simultaneously rotate in the deferent directions, thereby the reaction forces of the first saw blade and the second saw blade can be offset by each other so as to have a stable operation while in use.