Abstract: A TPMS transmitter (100) fixing structure, comprising a valve stem and a core rod (200) in the middle of the valve stem, the core rod (200) having a connector suitable for connecting to the TPMS transmitter (100), and also comprising a protruding part protruding outward along the radial direction of the valve stem, such that, when the valve stem is mounted on a wheel rim (300) of an automobile, the protruding part is in contact with the wheel rim (300); adding a protruding part to the valve stem can counteract the rotational torque produced by the eccentricity and centrifugal force of the transmitter to forcefully prevent rotation of the transmitter during operation, and limits the mounting direction of the TPMS transmitter, ensuring that the TPMS transmitter is not biased when mounted on the wheel rim, and effectively reducing the risk of the loss of function or reduction in performance of the TPMS transmitter due to biased or backward mounting of the TPMS transmitter.

Abstract: This present invention discloses a step-adjustable tire pressure monitoring sensor signal housing assembly including a valve and a valve core fixed on a rim, a sensor signal housing which consists of a housing holder and a connecting part, the connecting part has a curve connecting face where a Slot 1 is provided, and a Slot 3 is provided on the housing holder under the connecting part; a D block, which is in D shape and has a flat part and a cylinder part, a Slot 2 is provided in the center of the cylinder part perpendicular to the flat part, some ratchet teeth are provided longitudinally in the cylinder part by the side of a mounting hole; a U-pawl and a spring, which are installed in the Slot 3, the spring is in the bottom of the U-pawl and the top of the U-pawl is corresponding to the ratchet teeth on the D block; and a connector which fixes the sensor signal housing and the D block onto the tire valve through the Slot 1 in the signal housing and the Slot 2 on the D block.

Abstract: This present invention discloses a step-adjustable tire pressure monitoring sensor signal housing assembly including a valve and a valve core fixed on a rim, a sensor signal housing which consists of a housing holder and a connecting part, the connecting part has a curve connecting face where a Slot 1 is provided, and a Slot 3 is provided on the housing holder under the connecting part; a D block, which is in D shape and has a flat part and a cylinder part, a Slot 2 is provided in the center of the cylinder part perpendicular to the flat part, some ratchet teeth are provided longitudinally in the cylinder part by the side of a mounting hole; a U-pawl and a spring, which are installed in the Slot 3, the spring is in the bottom of the U-pawl and the top of the U-pawl is corresponding to the ratchet teeth on the D block; and a connector which fixes the sensor signal housing and the D block onto the tire valve through the Slot 1 in the signal housing and the Slot 2 on the D block.

Abstract: The present invention discloses a stepless adjustable tire pressure monitoring sensor signal housing assembly, which consists of a sensor signal housing with a housing holder and a connecting part on the center of the holder. The connecting part has a curve connecting face where a Slot 1 is provided. It also includes a D block which has a flat part and a cylinder part. On the cylinder part, a Slot 2 is provided longitudinally. Two mounting holes are provided on the wall of the deep side of the Slot 2, two springs and two needle rollers are installed in the two holes respectively. A through hole is also provided in the center of the cylinder part perpendicular to the flat part. It still contains a connector which fixes the sensor signal housing and the D block onto the tire valve through the Slot 1 in the signal housing and the Slot 2 in the D block.