Abstract: A tire valve is provided, wherein the tire valve includes: a tubular member including an inner surface, an internal channel and a first threaded portion, the internal channel being defined by the inner surface; a valve assembly including a sealing portion, movably inserted in the internal channel, and being operable to drive the sealing portion to engage with the inner surface to block the internal channel or disengage from the inner surface to unblock the internal channel; and a sleeve member including a connection opening and a second threaded portion, the second threaded portion being screwed to the first threaded portion, the sleeve member being configured to urge and secure the tire valve to a rim, the connection opening being in communication with the internal channel and configured for an inflation and deflation device to be detachably assembled thereto.

Abstract: A tire valve is provided, wherein the tire valve includes: a tubular member including an inner surface, an internal channel and an enlarged section, the internal channel being defined by the inner surface and extending through the enlarged section; and a valve assembly including a sealing portion, movably inserted in the internal channel, and being operable to drive the sealing portion to engage with the inner surface to block the internal channel or disengage from the inner surface to unblock the internal channel; wherein when the tubular member is disposed through a rim, the enlarged section is inserted in an internal room of the rim, and a position where the sealing portion engages with the inner surface is located in the internal room of the rim.

Abstract: A tire valve is provided, wherein the tire valve includes: a tubular member including an internal channel, a shoulder and a necked portion, the shoulder and the necked portion projecting radially inward in the internal channel; and a valve assembly resiliently squeezed through the necked portion and axially blocked by the necked portion to be disposed in the internal channel and restricted between the shoulder and the necked portion, and being operable to block or unblock the internal channel, wherein the valve assembly includes a valve pin, the valve pin includes an axial hole and at least one lateral hole in communication with the axial hole, and the at least one lateral hole is in communication with the internal channel.

Abstract: A high-volume tire valve is provided, wherein the high-volume tire valve includes: a tubular member including a passageway, a shoulder and a necked portion, the passageway including first and second passageways located by two sides of the shoulder, the necked portion being located in the passageway and extending radially inward; a valve core received in the passageway, including a tubular body and an end portion connected to the tubular body, the tubular body defining an axial hole and including at least one lateral hole in communication with the axial hole, an end of the axial hole being open; a seal disposed on the valve core and located in the second passageway, an outer diameter of the seal being greater than a diametric dimension of the first passageway; and a stopper resiliently squeezed into the second passageway and axially blocked by the necked portion.

Abstract: A valve stem assembly is provided, wherein the valve stem assembly includes: a valve stem including a shaft portion and a radial flange radially protruding from an outer circumferential surface of the shaft portion, the shaft portion including a threaded section; a blocking member movably sleeved on the shaft portion and blocked by the radial flange; and an elastic member sleeved on the shaft portion and blocked by the blocking member, configured to seal a valve installation hole of a rim.

Abstract: The present invention relates to a tire valve and a valve pin thereof. The valve pin includes a body portion, a head portion and a valve seal. The body portion includes a tubular wall, the tubular wall includes a first end and a second end, the tubular wall defines an axial hole and including at least one radial hole in communication with the axial hole, and the axial hole has an opening at the first end of the tubular wall. The head portion is fixedly and integrally connected axially to the second end of the tubular wall, and includes a groove on an outer surface thereof. The valve seal is received within the groove and protrudes radially outward beyond the groove, and is configured for sealingly contacting an inner surface of the tire valve.

Abstract: The present invention relates to a tire valve and a valve pin thereof. The valve pin includes a body portion, a head portion and a valve seal. The body portion includes a tubular wall, the tubular wall includes a first end and a second end, the tubular wall defines an axial hole and including at least one radial hole in communication with the axial hole, and the axial hole has an opening at the first end of the tubular wall. The head portion is fixedly and integrally connected axially to the second end of the tubular wall, and includes a groove on an outer surface thereof. The valve seal is received within the groove and protrudes radially outward beyond the groove, and is configured for sealingly contacting an inner surface of the tire valve.

Abstract: A bicycle braking device includes a caliper, two operation units and two links. Each operation unit is installed to the two respectively threaded holes of the caliper and includes an operation assembly and a ring. Two links are respectively connected to the two operation assemblies. Each operation assembly includes multiple curve slots, and multiple balls are partially rotatably accommodated in each curve slot. Each ring is movably mounted to the core part of each operation assembly and includes multiple spiral grooves. The balls are accommodated in the spiral grooves and the curve slots. When the two links are pivoted by pulling the brake cable, the two core parts are rotated, and the two rings rotatably move to push the linings to clamp the brake disk. The balls ensure the rings to move smoothly so as to precisely clamp the brake disk.

Abstract: A tire valve assembly includes a stem and a valve unit. The valve unit includes a movable part and a seal member. When introducing pressurized air into the tire valve assembly, the valve unit moves to a position in the stem to allow the pressurized air to flow into the tire. When the pressurized air is stopped from entering the tire valve assembly, the valve unit is pushed back by the pressure in the tire to seal the inlet so that the pressurized air in the tire does not leak to keep the tire pressure.

Abstract: A tire valve assembly includes a valve shaft movably inserted into a first diameter section of the outer tube. The valve shaft includes a passage and a radial hole which communicates with the passage. A first seal is mounted to the end of the valve shaft that is inserted into the outer tube and is movable relative to a shoulder in the outer tube. A guide tube is mounted to the valve shaft and has a guide portion protruding therefrom which is guided in guide groove in the outer tube. An adjustment tube is threadedly mounted to the first outer threads on the valve shaft. When rotating the adjustment tube, the valve shaft is axially movable in the outer tube to control the gap between the first seal and the shoulder in the outer tube. The gap is changeable and communicates with the radial hole and the passage.

Abstract: A tire valve assembly includes a valve shaft movably inserted into a first diameter section of the outer tube. The valve shaft includes a passage and a radial hole which communicates with the passage. A first seal is mounted to the end of the valve shaft that is inserted into the outer tube and is movable relative to a shoulder in the outer tube. A guide tube is mounted to the valve shaft and has a guide portion protruding therefrom which is guided in guide groove in the outer tube. An adjustment tube is threadedly mounted to the first outer threads on the valve shaft. When rotating the adjustment tube, the valve shaft is axially movable in the outer tube to control the gap between the first seal and the shoulder in the outer tube. The gap is changeable and communicates with the radial hole and the passage.

Abstract: A heat dissipating device for bicycle braking systems includes a first board and a second board which is connected to the first board to form a room defined therebetween so that cooling liquid flows within the room. The first board includes a first recess and a second recess defined in an inside thereof which faces the second board. The first recess communicates with the second recess. A flanged portion is formed along four sides of the first board. The second board has a grooved portion formed on each of four sides thereof. The flanged portion is engaged with the grooved portions to connect the first and second boards together.

Abstract: A heat dissipating device for bicycle braking systems includes a first board and a second board which is connected to the first board to form a room defined therebetween so that cooling liquid flows within the room. The first board includes a first recess and a second recess defined in an inside thereof which faces the second board. The first recess communicates with the second recess. A flanged portion is formed along four sides of the first board. The second board has a grooved portion formed on each of four sides thereof. The flanged portion is engaged with the grooved portions to connect the first and second boards together.

Abstract: A brake pad assembly for mounting on a caliper of a vehicle includes a backing plate, a brake lining disposed on a front side of the backing plate, and a heat sink. The heat sink includes a thermal conductive sheet and a set of cooling fins mounted on a rear side of the thermal conductive sheet. In particular, the thermal conductive sheet is overlapped and releasably fastened on the backing plate.

Abstract: A bicycle cable fastener, which is configured to adjust a cable, includes an outer shell, a pressing assembly and a plurality of balls. The outer shell has an assembling hole defined therethrough and an oblique guide face annularly defined at the assembling hole. The pressing assembly has a base member and a cylinder. The base member is assembled with one end of the cylinder. The other end of the cylinder passes into the outer shell and is axially movable relative to outer shell. The cylinder has a through hole defined therein. Specifically, a plurality of cavities is defined around an outer periphery of the cylinder opposite to the base member. The balls are respectively disposed in the cavities of the cylinder and biased inwardly by the oblique guide face of the outer shell so as to tighten the cable.

Abstract: A hydraulic brake system is adapted to be assembled on a steering assembly. The hydraulic brake system includes a connecting member and hydraulic device. The connecting member has a receiving room and a receiving opening. The hydraulic device has a hydraulic cylinder and a fluid tank. The hydraulic cylinder is received in the receiving room. The fluid tank is inserted in the receiving opening and connected with the hydraulic cylinder. The hydraulic cylinder has a main body, two pistons and two springs. The main body has two hydraulic chambers. The two pistons are assembled in the two hydraulic chambers and two springs sleeve onto the two pistons. Two brake cables and two fluid pipes are connected with the hydraulic cylinder. When the brake cable pulls the piston to press a fluid in the hydraulic chamber, the fluid flows into the fluid pipe so as to control a brake device.

Abstract: A brake pad assembly includes a backing plate, a brake lining and a brake wear indicator. The brake lining is disposed on a front side of the backing plate for engagement with a rotor to be braked. The brake wear indicator is formed of an elastic metallic strip with one end attached to the front side of the backing plate. Moreover, the brake wear indicator is disposed adjacent to the brake lining for engagement with the rotor to be braked once the brake lining is worn out to a predetermined safe thickness, and thereby causing an annoying noise to alert an motorist that the brake pad assembly needs to be replaced.

Abstract: A brake pad assembly for mounting on a caliper of a vehicle includes a backing plate, a brake lining disposed on a front side of the backing plate, and a heat sink. The heat sink includes a thermal conductive sheet and a set of cooling fins mounted on a rear side of the thermal conductive sheet. In particular, the thermal conductive sheet is overlapped and releasably fastened on the backing plate.

Abstract: An adjustment device for a hydraulic brake system includes a hollow casing and a retractable unit. The hollow casing has a rotatable ring to control the retractable unit. One end of the hollow casing is connected to a hydraulic hose, and another end is connected to a hydraulic cylinder. The adjustment device is assembled between a hydraulic hose and a hydraulic cylinder. When a user rotates the rotatable ring, the retractable unit is adjusted so as to control a sensitivity of a hydraulic brake system.

Abstract: A brake block for bicycle includes a base which is made by plastic injection molding and a pad body made of rubber. The base has a fixing portion formed on one side thereof and a connecting portion formed on another side thereof. The connecting portion is connected with the fixing portion. The connecting portion has a plurality of necks connecting with the fixing portion and a connecting plate which is mounted on the necks. A gap is defined in two adjacent necks. The pad body has a braking portion formed on another side thereof for providing frictional effect. The pad body is partially filled into the gaps of the connecting portion of the base. The necks and the connecting plate are thoroughly covered by the pad body so that the base and the pad body form as an integral part.