Patent ID: 11904642
Assignee: HAMATON AUTOMOTIVE TECHNOLOGY CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A TPMS inflation valve for a commercial vehicle, wherein the inflation valve is provided with an inflation valve body, an inflation valve seat and a sensor subassembly, wherein the inflation valve body and the inflation valve seat are components split apart from each other, the inflation valve is mounted on an automobile rim by means of the inflation valve seat, the inflation valve body is provided with an installation portion for a valve core; the inflation valve body and the inflation valve seat are assembled and connected to form an airflow channel for communication, a cavity located outside the automobile rim is formed at the position where the inflation valve body and the inflation valve seat are assembled and connected, the sensor subassembly is arranged in the cavity, and the cavity is in communication with the airflow channel of the inflation valve or is located on the airflow channel;
wherein the sensor subassembly is compressed by a limiting spring above to maintain ventilation between a part above the sensor subassembly and the top wall of the cavity; a plurality of sensor bulges are arranged at the bottom of the sensor subassembly, the sensor bulges maintain the sensor subassembly in an axial position and support the bottom of the sensor subassembly away from the bottom wall of the cavity to maintain ventilation, a gap between a side wall of the cavity and a side surface of the sensor subassembly provides an airflow channel on a side surface, the airflow channels form an airflow channel in the cavity together and are in communication with an airflow channel of the inflation valve body and the inflation valve seat.