Abstract: A safety vacuum syringe for blood sampling conformed to ergonomics comprises: a needle head having a cannula needle with two needle tips at opposite ends held by a needle holder at a middle; a barrel having eccentric reduced front portion and a bottom opening end; an eccentric reduced lining tube inserted in the front portion of the barrel; a vacuum container having a plug sealed with front opening thereof; a tubular connector which connects the reduced lining tube to the vacuum container during using; and characteristically a reversible front cover which can be pressed into the cannula needle thoroughly in the barrel after using.

Abstract: A new pen nib structure for smooth painting, which has an outlet for discharging liquid fluently so as to paint different lines in one time, and more particularly to a type of correction pen. The main structure comprises a liquid container, a pen head, and a joint part, wherein a front end of the pen head is formed into a wedge nib with a round shape having a liquid discharging outlet provided at the middle part of the wedge nib; a valve rod supported by a spring has a front round nib end for extending out of the outlet. The nib structure is characterized in that two crescent slits are each provided beside said outlet respectively, and two guiding slits are provided on said wedge nib to be extended toward two opposite ends of said wedge nib. When using the pen, the wedge nib of the pen head is pushed against the paper so that the valve rod is pushed inward to open the valve. Since two crescent slits and two guiding slits are provided to enlarge the outlet, the liquid can flow out fluently for smooth painting.

Abstract: A sewing machine includes a position rod fixed under a plate base for securing an electromagnet horizontally. The position rod has a front end holding a roller for a connecting band to extend around. The lower end of the connecting band is bound with a working rod of the electromagnet. In using the sewing machine, the electromagnet is electrically activated or desactivated to attract the working rod to the left side or the right side for pulling or not pulling the connecting band and a swing arm so as to lift or lower the presser foot. Thus the space for installing the electromagnet can be narrowed and the power required by itself may be decreased.

Abstract: A dust sucking/blowing device including a housing including a fan chamber for receiving a fan therein, a dust collecting sleeve fitted around the fan chamber and formed with a first and a second inlets communicating with a dust collecting room which is formed with at least one perforation for communicating with the incoming compartment of the chamber. The sleeve is further formed with an outlet for communicating with the outgoing compartment of the fan chamber. A control guide cartridge includes a hollow cartridge body formed with an inlet section fitted with the outlet of the sleeve for guiding air flow into the cartridge body, and an outlet for outward guiding the air flow from the cartridge body. When the outlet of the cartridge body is aligned with the fitting hole of the second casing, the outlet of the cartridge body permits the air flow from the fan to be outward blown from the passage of the dust sucking/blowing tube fitted with the fitting hole for blowing away dusts.

Abstract: A full-image optical fence assembly for laser pointer comprising a sleeve and an optical fence is provided. The sleeve is preferably made from resilient material and includes an aperture in the front portion, and a fence mounting. Wherein the optical fence can be fixedly attached to the fence mounting. The sleeve further includes a connecting portion that has a flare shape for readily enveloping onto the tip of the laser pointer. The optical fence assembly can be readily attached to the tip of different laser pointer. The engagement between the sleeve and the tip of laser pointer is firm. A preferable waterproof and shockproof capability are provided.

Abstract: An electric plug plate having two symmetrical power blade mounting zones and a grounding prong mounting zone between the power blade mounting zones, a plurality of power blade mounting holes and grounding prong mounting holes respectively disposed at the power blade mounting zones and grounding prong mounting zone, two first metal mounting plates and a second metal mounting plate respectively mounted in respective back recesses thereof and having threaded power blade mounting holes or grounding prong mounting holes corresponding to the power blade mounting holes and grounding prong mounting holes at the power blade mounting zones and grounding prong mounting zone for mounting a pair of metal contact blades and a grounding prong subject to one of a variety of electric plug specifications.

Abstract: An elastic clamp structure of an interface socket is provided, which consists of an interface socket with two clamps. The clamp has a pressed flat block at each free end, in which the flat block extends out from one side of the cylindrical surface of the wire, while the other side of the flat block maintains the cylindrical surface contour of the wire. The height of the flat block is larger than the inside height of the projecting lug, and smaller than the width of the projecting lug of the interface socket, allowing the clamp to swivel smoothly.

Abstract: A walker and rocking horse includes a base member consisting of two base rods, two pairs of joint sleeves movably fitting around two abutting ends of the two base rods and able to be connected with or disconnected from each other, two parallel supporting rods fixed between a front and a rear side of the base member and having two ends fixed with a position block, and a plurality of position switches combined on the two base rods The position blocks respectively have two position holes located in an angle condition for the position switches to selectably engage either of the two position holes to transform the walker and rocking horse into a walker or a rocking horse for separate use.

Abstract: A baby carriage with an illumination sound system comprises a control box having a control circuit, a frame with wheels, a magnet and a magnetic switch mounted on a rear leg of the frame. The magnetic switch is connected to the control circuit, and the control circuit outputs a signal to drive a speaker, an illuminating device, a signal transmitting device, respectively or a combination signal of all the above, thus, when pushing the carriage the above devices can be activated.

Abstract: The subject matter relates to a turning shaft structure, characterized in its improvement aimed at a previous case which involves the inconvenience of being restricted by the radius of the screw when the turning shaft structure is applied to a notebook computer, comprising: a first fixing plate, a second fixing plate, a screw, a first pad and a second pad; the first end of said screw involves a shaft part, said shaft part to be mounted by said first pad, said first fixing plate and said second pad, said first pad and said second pad respectively made of nylon, fiberglass, Teflon or such materials; the improvement is featured in that said shaft part is further to be mounted by a first washer and a second washer, on the first end of said first fixing plate and the first end of said second fixing plate are respectively a first shaft hole and a second shaft hole, at the first end of said shaft part is a thread part, said thread part is to be mounted by a nut, at the second end of said screw is a rivet part, said

Abstract: A key switch includes a rubber cone supported on a membrane circuit board inside a keyboard, a key base covered on the rubber cone to hold a vertically slidably key cap, a spring holder cap vertically slidably coupled to the key cap inside the key base to hold spring between the key cap and the spring holder cap, the key cap has two inner hooks respectively extended from two opposite sides of a bottom coupling frame thereof for engagement with the spring holder cap, the spring holder cap having outward hooks raised from the topmost edge thereof at two opposite sides for engagement with the inner hooks of the key cap, the rubber cone being compressed by the spring holder cap to trigger a contact at the membrane circuit board and the spring suddenly extending out to produce a click sound when the key cap is depressed.

Abstract: A structure for assembling chair bases by cladding the chair bases with wood grain finish strips is provided. The chair bases have notched slots formed at appropriate placed on both sides of each plastic strut foot. A scoop channel is formed in the strut foot surface near the central pivot joint of the base. A drilled hole is located inside the scoop channel. A connecting hole is formed in the outer bottom edge of each strut foot for attaching a wheel set thereto. There is a wood grain finish strip for each strut foot. Each strut foot has an inverted U-shaped cross-sectional contour and pintle hooks located in correspondence with the notched slots on both sides of each strut foot. The outer bottom edge of each wood grain finish strip extends inwardly to form a flange of suitable length to extend over the outside of the strut foot.

Abstract: This invention relates to a plug structure for use in miniature light bulb series, which comprises a plug body provided with conductor blades, fuses, and a cover and associated with an end cap on one end. It makes use of an insertion association between separated conductor connectors and terminals and held by a locating plate to form a serial connection type plug. With such arrangement, the plug according to the invention can be made as an independent part for further assembling, avoiding tangling with electrical wires during delivery.

Abstract: An assembled toilet bowl mainly includes a seat section, a base and a valve cover set. When activating a flushing control member, the valve cover is opened. The water from the water source will flow through a water incoming passage of the seat section and a bowl-shaped space. Then the water will horizontally flow through a valve port and then flow through a draining passage of the base and downward flow out. Reversely, when the flushing control member is not activated, the valve cover is closed. Under such circumstance, the water of the water source will not flow out and the valve cover will block the valve port to isolate the draining passage. Therefore, the toilet bowl can save more water, can be fixed on a wall, can be easily assembled, and can be easily cleaned.

Abstract: A brake oil detector is disclosed. It includes a housing formed with a through hole on one side, a circuit board disposed in the housing and having a wire extending through the through hole to outer side of the housing, a pivotable rotary shaft disposed in the through hole and an extension arm disposed at one end of the rotary shaft and having a free end disposed with a sensor connected to the circuit board by the wire. The sensor of the extension arm is extended into a brake oil tank to check out the viscosity of the brake oil and judge whether it is necessary to replace the brake oil.

Abstract: A light sand-gravel and its production methodology is provided. The light sand-gravel has a specific gravity within the range of 0.4.about.2.0. It has an expanded inner structure with porosity to approximate an evacuated space and a vitreous surface. The production methodology involves the preheating of sorted and dried rock materials, subsequent heating and heat soaking processes in a converter preset with four stages of temperature control. Stage 1 provides for preheating. Stages 2 and 3 provides heating and Stage 4 provides heat soaking to produce a light sand-gravel aggregate with a particular specific gravity.

Abstract: A structure of a hair ornanent includes a main body of the hair ornament, an elastic wire and an ornamental block. One end of the elastic wire is provided in a proper position of the main body, and the other end of the elastic wire is connected with the ornamental block. While the main body being worn on the hair of a user, the ornamental block will swing accordingly by the elasticity of the elastic wire through the move of the user's body and head or the influence of external forces so as to make the hair ornament look vivid and interesting. This invention is also provided with easily assembled and disassembled skills so that it is convenient for a user to replace another ornamental block.

Abstract: An elastic device for an eyeglasses frame is contained in a center deep opening of a center deep opening formed in each of two ends of a frame and pivotaly connected to a front end of each of two temples so that the temples may be automatically adjusted in its tightness relative to the frame. Then the frame may be worn by users having faces of different size. Further the shape of the temples may be alterable according to the configuration of a frame.