Abstract: A high pressure gauge contains: a body, a support, a film, a cylinder, an indicator, a screw element, a stud, and a push post. The stud has a channel through which the push post passes, and the stud has a seal ring contacting with the push post in the channel. A central disc is defined between the film and a circular tab of the screw element, the central disc contacts with the film, the push post includes a C retainer engaged on an extension of the push post, and the C retainer is defined between the screw element and the stud. When the push post moves, the C retainer abuts against the stud, and an auxiliary ring is received in the channel, located above and contacts with the seal ring and the extension of the push post. The seal ring is concave, and the auxiliary ring is convex.

Abstract: A pressure gauge structure contains: a body having a bow-shaped frame and a holder mounted under the bow-shaped frame, and a contact film defined between the bow-shaped frame and the holder. A connector is connected on a bottom of the holder, and a test conduit passes through the holder and the connector and accommodates a tested object. The contact film contacts with a separation washer corresponding to the contact film.

Abstract: A high pressure gauge contains: a frame, a holder, a film, a cylindrical support, an indicator set, a screwing element, a threaded column, and a push rod, wherein a seal ring is retained between the channel and the push rod. The central disc is defined between the film and a tab of the screwing element, when the push rod acts on the screwing element, the screwing element drives the central disc to push the film upward, and the central disc exerts a force on the film. The push rod has a C-shape retainer located in a part of the holder between the screwing element and the threaded column, when a pressure of the push rod disappears, the push rod is urged by the indicator set to move downward, and the C-shape retainer is biased against the threaded column so as to avoid a removal of the push rod.

Abstract: A pressure gauge structure contains: a body having a bow-shaped frame and a holder mounted under the bow-shaped frame, and a contact film defined between the bow-shaped frame and the holder. A connector is connected on a bottom of the holder, and a test conduit passes through the holder and the connector and accommodates a tested object. The contact film contacts with a separation washer corresponding to the contact film.

Abstract: A tire pressure gauge contains a housing, a pressure measuring unit, and a tire-tread depth measuring unit. The tire-tread depth measuring unit includes a mounting assembly, a gear assembly, a hair spring, a covering lid, and a longitudinal post. The tire pressure gauge measures a tire pressure and a tire-tread depth. The tire-tread depth measuring unit indicates a number of the tire-tread depth by using a pointer, after a measurement stem of the longitudinal post is inserted into a tread slit of a tire, and a longitudinal movement of the longitudinal post is transformed into circumference rotation data through the gear assembly, thus indicating the number of the tire-tread depth on a numerical display panel clearly. Preferably, a probe and the measurement stem of the longitudinal post inserted into the tread slit are driven by the hair spring to return to a zero state.

Abstract: A tire pressure gauge which contains: a housing, a pressure measuring unit, and a tire-tread depth measuring unit. The tire-tread depth measuring unit includes a mounting assembly, a gear assembly, a hair spring, a covering lid, and a longitudinal post, such that the tire pressure gauge measures a tire pressure and a tire-tread depth. The tire-tread depth measuring unit indicates a number of the tire-tread depth by using a pointer, after a measurement stem of the longitudinal post is inserted into a tread slit of a tire, and a longitudinal movement of the longitudinal post is transformed into circumference rotation data through the gear assembly, thus indicating the number of the tire-tread depth on a numerical display panel clearly. Preferably, a probe and the measurement stem of the longitudinal post inserted into the tread slit are driven by the hair spring to return zero state.

Abstract: A pressure gauge structure contains: a hollow case, a pushing device, a display unit, and a receiving bag. The hollow casing includes a bow-shaped frame, a support rack disposed below the bow-shaped frame, and a film defined between the bow-shaped frame and the support rack. The pushing device includes an insulation plate and includes a push bolt contacting with a bottom end of the insulation plate and inserting through a screwing post, wherein between the insulation plate and the film is defined a chamber, and the screwing post is screwed with a bottom end of the support rack. The display unit is mounted on the film, and the receiving bag is fixed between the film and the insulation plate to hold fluid with a certain density, the push bolt has a protruded rib extending outward from one end thereof and abuts against the screwing post.

Abstract: A multi-functional tire pressure gauge includes a housing, an air-guide seat, a diaphragm, a helical seat, an annular seat, a tread-measuring device, a display panel and an air-guiding device. The multi-functional tire pressure gauge can measure tire pressure and tread's depth simultaneously. Specifically, when the diaphragm moves up and down under the effect of the tire pressure, the helical seat converts the up-and-down motion of the diaphragm into circular motion, so that the index pointer can display tire pressure value. Furthermore, the probe extending in treads of the tire can obtain the depth of the tread.

Abstract: A multi-functional tire pressure gauge includes a housing, an air-guide seat, a diaphragm, a helical seat, an annular seat, a tread-measuring device, a display panel and an air-guiding device. The multi-functional tire pressure gauge can measure tire pressure and tread's depth simultaneously. Specifically, when the diaphragm moves up and down under the effect of the tire pressure, the helical seat converts the up-and-down motion of the diaphragm into circular motion, so that the index pointer can display tire pressure value. Furthermore, the probe extending in treads of the tire can obtain the depth of the tread.

Abstract: A pressure switch. The switch includes a pressure sensor device adapted for receiving the input pressure and then moving the link rod due to the deformation caused by the input pressure. The switch includes a contact point fine-tuner having a first contact point controlled by the link rod, and is capable of separating or contacting a second contact point, and the contact point fine-tuner is mounted on a frame extended upwards from the pressure sensor device. The link rod of the pressure sensor device has a rotary plate, and the rotary plate includes a top leaning portion. By adjusting the position of the rotary plate on the link rod the controlling relationship between the first contact point of the contact point fine-tuner is attached to adjust different predetermined pressure values.

Abstract: A valve nozzle structure include a valve stem. On the valve stem is a collar flange and along both sides of collar flange is a series of tapered retainer lips. A passage is formed through the valve stem, a flexible valve sleeve is inserted on the tapered retainer lips on one side of the valve stem, and a slit is incised in the valve sleeve, with the slit normally in a sealed state of closure. The foregoing structure permits gas to flowing towards the valve sleeve to travel only in a single direction through the passage.

Abstract: A pressure gauge structure that consists of a gauge frame with a graduated gauge face at the top of a lower base at the bottom. Protruding from the circumference of the lower base is an annular seat and a guide pipe that provides for gaseous flow. A diaphragm is positioned on the lower base and on the diaphragm is a coil spring topped by a shaft sleeve for a pivoting needle shaft in the tube mount protruding from the gauge face, with the needle shaft o the gauge meter positioned in a coil spring. A calibration rod extends laterally from the needle shaft, the upper end of which is secured in a pivotal state to the gauge face by a mounting base. Around the needle shaft is a spiral spring, one end mounted to the gauge frame and the other end attached to the needle shaft. Under the gauge frame is a hoop flange and the lower base has a guide pipe for gaseous flow. The diaphragm is constructed out of metal with corrugations formed on the surface.