Abstract: The air duct comprises a body and at least an airflow guiding member. The airflow guiding member is detachably configured in a slot outlet of the body. The airflow guiding member comprises a guiding ditch with a receiving section, a regulating section, and a guiding section. An airflow flowing in the body is received by the receiving section into the regulating section and then thrusts out of the body after sequentially compressed by the regulating and guiding sections. An air wall is as such formed above the body to confine the pollutants dispersed in the air.

Abstract: A dynamic light-spot pictures generation device includes a stack of photoreceptors, light-source members, and a driving device which is connected to the light-source members. The light-source members produce projection light, the photoreceptors receive light produced by the light-source members at opposite positions, each photoreceptor includes a light guiding zone of a proper area, a surface of the light guiding zone contains a pattern formed by reflection points, and the reflection points of each photoreceptor are arranged according to a different dynamic continuous pattern. By the driving device, the light-source members sequentially project light which travels along the light guiding zone and is reflected outward at each reflection point, allowing each reflection point to form a specific light spot, so that a specific glossy pattern is formed by the plural reflection points, further constituting continuous dynamic visual pictures by the plural photoreceptor patterns which are displayed orderly.

Abstract: A bicycle display lamp structure, including a casing, a circuit board disposed within the casing, a display body, a plurality of light source elements, and a clamping device located on the casing. In which the light source elements produce light sources, which are guided by the display body. The display body is provided with a light guiding area, the surface of which is provided with light reflecting portions of different words or patterns formed from an arrangement of concave points or grooved lines. Accordingly, the clamping device is used to clamp onto a bicycle, and the light sources projected by the light source elements proceed along the light guiding area of the display body and reflect outward from each of the reflecting portions, and further cause the words or patterns to be in a constantly lit or flashing state to achieve a cautionary function for rear oncoming vehicles.

Abstract: An air curtain-assisted exhaust method and a device thereof are provided. Air curtain generators are disposed on a worktable to enclose an encircled area in the worktable. A receiving hood is disposed above the worktable, wherein the vertical lower part of the outer edge of the receiving hood completely covers the encircled area. Then, the air curtain generators are started to blow out air curtains toward an opening of the receiving hood, and the receiving hood is started to suck an air flow. A shielding space is defined by the air flow sucked by the receiving hood and the air curtains, so that the air curtains may guide a smoke generated inside the shielding space to the receiving hood to be exhausted, thereby achieving the effect of auxiliary exhaust, and may restrict the smoke in the shielding space to prevent the smoke from diffusing laterally.

Abstract: A vehicle lighting device is mounted in a bicycle. The lighting device includes a cantilever, a light-emitting lamp, and a power generating unit. The cantilever is fixed on a frame of the bicycle, so as to support the power generating unit to urge the power generating unit against a wheel of the bicycle constantly. The power generating unit includes an induction coil winding, a magnetic rotor, and a roller. The induction coil winding is wound around a winding axis. A rotating axis of the magnetic rotor is perpendicular to the winding axis. When wheels of the bicycle rotate, the roller and the magnetic rotor are driven to rotate relative to the induction coil winding, such that the induction coil winding generates an inductive electric power, which is supplied to the light-emitting lamp. Thus, a low-cost and labor-saving vehicle lighting device is developed.

Abstract: An auxiliary exhaust structure and method therefor are used to exhaust a pollution source of a workstation. The auxiliary exhaust structure includes an exhaust hood and an air feeder. The exhaust hood disposed corresponding to the workstation has a suction port for sucking the pollution source and a deflector extending along the periphery of the suction port for guiding the pollution source. The air feeder generates air flows flowing along the deflector towards the suction port for guiding the pollution source. Therefore, during the exhausting of the pollution source, the gathering effect of the pollution source flowing to the exhaust hood is enhanced and thereby the pollution source is easier to be trapped.

Abstract: An air curtain-assisted exhaust method and a device thereof are provided. Air curtain generators are disposed on a worktable to enclose an encircled area in the worktable. A receiving hood is disposed above the worktable, wherein the vertical lower part of the outer edge of the receiving hood completely covers the encircled area. Then, the air curtain generators are started to blow out air curtains toward an opening of the receiving hood, and the receiving hood is started to suck an air flow. A shielding space is defined by the air flow sucked by the receiving hood and the air curtains, so that the air curtains may guide a smoke generated inside the shielding space to the receiving hood to be exhausted, thereby achieving the effect of auxiliary exhaust, and may restrict the smoke in the shielding space to prevent the smoke from diffusing laterally.

Abstract: A retractable safety syringe includes primarily a barrel, a seat, and a push rod, wherein a tubular exit is located at an end of the barrel, a bore is located at an inner rim of bottom of exit, a thin breakage part is located at a periphery of the end, and a groove is located on a surface of barrel close to the end for latching and fixing a cover. A bolt is located at a top end of the push rod, so as to retract the push rod by locking the bolt of push rod into the bore at the inner rim of exit of barrel, after accomplishing an injection with the syringe, thereby breaking the breakage part at the periphery of barrel from a stretching force and retracting a needle into the barrel, in order to prevent the used syringe from being recycled.

Abstract: A disposable safety syringe structure includes a barrel, a needle seat, a plunger, and a protective cover. A circumferentially surrounded thin broken portion is disposed on a periphery of an end portion of the barrel, and a circular groove is disposed on the end portion of the barrel thereby fastening the protective cover. In addition, a vertical cutter is disposed on a bottom end of the protective cover, and a fastener is disposed on a top end of the plunger, such that the syringe can be hooked onto an opening of the outlet of the barrel by means of the fastener of the plunger after injection. When the protective cover is turned, the cutter cuts off the broken portion such that the needle head is retracted to the barrel and the barrel can be completely destroyed in order to prevent it from being recycled and reused.

Abstract: A mechanical massage device having a pedestal, a universal coupling, a main body and an interchangeable massage piece, that is moveable in forward and backward directions and the speed and length of movement are adjustable. The massage piece also selectively rotates and vibrates.

Abstract: A folding and portable electric scooter assembled from structural members including a body member, a cover member, a seat frame and handles. When the electric scooter is not in use, a user needs only employ three simple actions to facilitate rapid folding away of a portable electric scooter, namely to fold down handles into the cover member, and fold away the cover member and the seat frame into the body member, whereupon, the user can pull a pull rod configured atop the cover member to easily pull along the electric scooter by means of auxiliary wheels connected to the body member, similar to the pulling of a baggage.

Abstract: A smoke guiding machine embodying a front member device, a left member device and a right member device, which are installed around a gas stove, thereby omnidirectionally isolating smoke produced. The front member device is further provided with an air-speed tuner, wherewith can effectuate adjusting appropriate air speeds for different air speed requirements of a variety of smoke exhausts configured at specific heights in different households. The smoke guiding machine is characterized in that left and right member devices are joined to a front member device by means of terminals and fixing pins respectively inserting into respective terminal ports and pin holes of the front member device, and the terminals upon being inserted into the terminal ports can thereby actuate conductive flow of electricity.

Abstract: A foldable electric motorcycle structure includes primarily a body, a front and rear frames, and a cap, wherein the cap is located at a front part of the front frame, a seat is located at a top edge of the rear frame, and latching mechanisms are located respectively at the front and rear frames, such that the front and rear frames can be unfolded into a riding condition, and a shielding effect can be constituted by the cap during riding. Whereas a box is formed for carrying upon folding the front and rear frames, which enables pulling in walk by the means of auxiliary wheels at two sides of the rear frame and a pulling bar at a front edge of the body, thereby causing more convenience in using an electric motorcycle.

Abstract: A mechanical massage device having a pedestal, a universal coupling, a main body and an interchangeable massage piece, that is moveable in forward and backward directions and the speed and length of movement are adjustable. The massage piece also selectively rotates and vibrates.

Abstract: A folding and portable electric scooter assembled from structural members including a body member, a cover member, a seat frame and handles. When the electric scooter is not in use, a user needs only employ three simple actions to facilitate rapid folding away and realize formation of a portable electric scooter, namely to fold down handles into the cover member, and fold away the cover member and the seat frame into the body member, whereupon, the user can pull on a pull rod configured atop the cover member to effortlessly pull along the electric scooter by means of auxiliary wheels connected to the body member, similar to pulling along of baggage. When the user wishes to ride the electric scooter, the user needs only to implement three simple maneuvers to open up the folded electric scooter, namely to pull open the cover member, the seat frame and the handles, whereupon the cover member instantly forms a front frame of the electric scooter.

Abstract: The pleasure promotive sexual device includes a mechanism assembly composed mechanical devices including a motor. When the motor is activated, an extension shaft in the mechanism assembly is interlocked for impelling a dildo provided at the front end thereof and for further automatic mechanical movements of stretching and contracting back and forth, and pleasure of a certain extent is achieved for the wife followed by that provided by the husband. Therefore both the husband and wife are able to easily come to orgasms, thus relatively flavoring lives of and building happy families married couples.

Abstract: The pleasure promotive sexual device includes a mechanism assembly composed mechanical devices including a motor. When the motor is activated, an extension shaft in the mechanism assembly is interlocked for impelling a dildo provided at the front end thereof and for further automatic mechanical movements of stretching and contracting back and forth, and pleasure of a certain extent is achieved for the wife followed by that provided by the husband. Therefore both the husband and wife are able to easily come to orgasms, thus relatively flavoring lives of and building happy families married couples.

Abstract: A smoke guiding machine includes a front machine, and left and right machines, and is installed around a gas stove, thereby omnidirectionally isolating smoke produced. Tracks at two ends of the front machine are assembled to protrusions at left and right machines, and the protrusions are capable of displacing in channels at the tracks, so as to adapt to gas stoves having distinct dimensions. The front machine is further provided with a wind speed tuner, and thus appropriate wind speed can be adjusted and obtained for different wind speed requirement of different heights of smoke exhausts in various households.