Abstract: A wireless earphone includes an earphone body with a concha contact surface. A sound outlet tube protrudes out from the concha contact surface. A convex positioning portion protrudes out from the concha contact surface. A laid slot is located on the concha contact surface and adjacent to the convex positioning portion. When the earphone body is mounted on a human ear, the concha contact surface is configured to face a concha of the human ear, the sound outlet tube is configured to insert into an auditory canal of the human ear, the convex positioning portion is configured to fit within a cavum of the human ear, and the laid slot is configured to fit within a crux helix of the human ear.

Abstract: An adjustable stand for mobile devices includes a board-like body, and a first holding unit and a second holding unit. The first holding unit is movable between the upper end and the bottom end of the body. The second holding unit is movable between the left side and the right side of the body. Two lateral members are respectively connected to the left side and the right side of the body. A support includes a bar with two arms extending from two ends of the bar. Each arm has a connector and two connectors are pivotably connected to the left and right sides of the body. The bar can be put on a desk top. The mobile device is positioned by the first and second holding units.

Abstract: A vacuum breaker includes a main body, a bushing mounted in the main body, a braking member mounted in the main body and located above the bushing, a water stop gasket mounted in the main body and located above the braking member, an elastic member mounted in the main body and biased between the bushing and the braking member, a water inlet disk mounted in the main body and located above the water stop gasket, and a washer mounted in the main body and located above the water inlet disk. The vacuum breaker further includes a connection structure mounted between an inner circumference of the main body and an outer circumference of the bushing. The bushing is combined integrally with the main body by the connection structure under an external force and will not be detached from the main body.

Abstract: A vacuum breaker includes a main body, a bushing mounted in the main body, a braking member mounted in the main body and located above the bushing, a water stop gasket mounted in the main body and located above the braking member, an elastic member mounted in the main body and biased between the bushing and the braking member, a water inlet disk mounted in the main body and located above the water stop gasket, and a washer mounted in the main body and located above the water inlet disk. The vacuum breaker further includes a connection structure mounted between an inner circumference of the main body and an outer circumference of the bushing. The bushing is combined integrally with the main body by the connection structure under an external force and will not be detached from the main body.

Abstract: A diagnostic device includes a body with a circuit board located therein. The body includes a display screen and a function button unit located on the outside thereof. A connection port and an insertion hole are respectively located to the body. An information cassette is inserted in the insertion hole and electrically connected to the circuit board. A cable unit has a first end and a second end, wherein the first end of the cable unit is connected to the connection port, and the second end of the cable unit is connected to a power source and an output port of a cleaning device which is connected to the throttle valve. When the diagnostic device detects abnormal information of the throttle valve via the cable unit, the display screen displays the abnormal information, the cleaning device cleans the throttle valve. The diagnostic device diagnoses the throttle valve afterward.

Abstract: An earphone including a housing, a speaker and an eartip is provided. The housing has an accommodating space and a first sound outlet communicated with each other. The speaker is disposed in the accommodating space. The eartip is assembled to the housing. The eartip has a second sound outlet and an incline extension surface. The incline extension surface is configured to fit into a cavum of a user's auricle and withstand an antihelix of the user's auricle.

Abstract: A vacuum breaker includes a main body, a bushing, an elastic member, a braking member, a water stop gasket, a water inlet disk and a washer. The interior of the main body is provided with a positioning groove. The bushing is made of metallic material and has an exterior provided with a positioning protrusion secured in and combined integrally with the positioning groove of the main body. The bushing is extruded outward by an oil pressure to form the positioning protrusion. Thus, the bushing is combined with the main body integrally and will not be detached from the main body.

Abstract: A hydrant device includes a faucet body, a rotation shaft, an upper rotation cap, a check valve, a switch valve, a lower fixed cap, and a water intake seat. The faucet body is provided with a rotary knob connected with the rotation shaft which is connected with the upper rotation cap. A first elastic member is biased between the rotation shaft and the upper rotation cap. A second elastic member is biased between the upper rotation cap and the check valve. The check valve is provided with a stop face. The switch valve is combined with the upper rotation cap. The water intake seat is mounted on the faucet body. Thus, the stop face forms an anti-reverse state to seal the switch valve, thereby preventing water from being gathered in the switch valve.

Abstract: A hydrant device includes a faucet body, a rotation shaft, an upper rotation cap, a check valve, a switch valve, a lower fixed cap, and a water intake seat. The faucet body is provided with a rotary knob connected with the rotation shaft which is connected with the upper rotation cap. A first elastic member is biased between the rotation shaft and the upper rotation cap. A second elastic member is biased between the upper rotation cap and the check valve. The check valve is provided with a stop face. The switch valve is combined with the upper rotation cap. The water intake seat is mounted on the faucet body. Thus, the stop face forms an anti-reverse state to seal the switch valve, thereby preventing water from being gathered in the switch valve.

Abstract: An earphone including a housing, a speaker and an eartip is provided. The housing has an accommodating space and a first sound outlet communicated with each other. The speaker is disposed in the accommodating space. The eartip is assembled to the housing. The eartip has a second sound outlet and an incline extension surface. The incline extension surface is configured to fit into a cavum of a user's auricle and withstand an antihelix of the user's auricle.

Abstract: A cart includes a first side board and a second side board. Each of the first and second side boards has first holes and second holes respectively defined in the upper and lower portions thereof. A first rod unit and a second rod unit are respectively connected to the first holes and the second holes of the first and second side boards. At least two shelves are movably mounted on the first and second rod units between the first and second side boards. A first wheel unit and a second wheel unit are respectively connected to the second holes at the front side and the rear side of the body so as to assemble the cart. The diameter of the second wheel unit is larger than that of the first wheel unit. The cart is light and suitable to move on an uneven surface.

Abstract: A lock is provided. The lock includes a fixing base, an elastic member disposed on the fixing base, a stopper disposed above the elastic member, a numbering plate disposed above the stopper, a rotating disc disposed above the numbering plate, and a buckle seat disposed on the rotating disc. At least a portion of the stopping part is able to pass through the numbering plate. The rotating disc caps outside the numbering plate, the stopper, and at least a portion of the fixing base.

Abstract: A vacuum breaker includes a safe valve body and an elastic gasket. The safe valve body has a receiving space which has a periphery provided with connecting holes. The elastic gasket has a size smaller than that of the receiving space, with clearances being defined between the elastic gasket and the receiving space. The elastic gasket has a center provided with a through hole and has an outer periphery provided with a sealing portion. Thus, the sealing portion contracts inward when water stops passing the safe valve body, so that ambient air flows into the receiving space to break a vacuum state in the safe valve body, such that a fluid contained in the safe valve body flows through the clearances between the elastic gasket and the safe valve body, and is drained outward from the connecting holes.

Abstract: A diagnostic device includes a body with a circuit board located therein. The body includes a display screen and a function button unit located on the outside thereof. A connection port and an insertion hole are respectively located to the body. An information cassette is inserted in the insertion hole and electrically connected to the circuit board. A cable unit has a first end and a second end, wherein the first end of the cable unit is connected to the connection port, and the second end of the cable unit is connected to a power source and an output port of a cleaning device which is connected to the throttle valve. When the diagnostic device detects abnormal information of the throttle valve via the cable unit, the display screen displays the abnormal information, the cleaning device cleans the throttle valve. The diagnostic device diagnoses the throttle valve afterward.

Abstract: A vehicle diagnostic device includes a body to which a switch, at least one connector, a display screen, a circuit board, a first I/O connection port, and a second I/O connection port are connected. The circuit board has a detection unit, an A/D converter unit, a processing unit and a display unit, and is connected to the at least one connector and the first and second I/O connection ports. The first I/O connection port is electronically connected to the ECU. The second I/O connection port is electronically connected to the operation device which reads the pre-set information from a remote storage device via internet so as to update or amend the ECU to be checked.