Automatic constant pressure device for hub tire system

Patent metadata

Field	Value
Publication number	US-10953705-B2
Application number	US-201816053096-A
Country	US
Kind code	B2
Filing date	Aug 2, 2018
Priority date	Feb 22, 2018
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

The invention provides an automatic constant pressure device for a hub tire system. The device comprises a valve nozzle, air pipes, valves, a pneumatic slip ring, a hub, a pressure relief valve, a tire, a main shaft, an air storage tank, a vehicle-mounted air source and the like. Two valve holes are machined in the hub of the device. The valve nozzle with a tire pressure sensor is installed at one valve hole, and the pressure relief valve is installed at the other valve hole. The tire pressure is detected by the tire pressure sensor. The valve is controlled to inflate through the valve nozzle, and the pressure relief valve is controlled to relieve the pressure. The device has the characteristics of scientific detection principle, simple and reasonable structure and the like.

First claim

The invention claimed is:

1. An automatic constant pressure device for a hub tire system, comprising a valve nozzle, a first air pipe, a one-way valve, a pneumatic slip ring, a hub, a pressure relief valve, a tire, a main shaft, an air storage tank, a second air pipe, a valve and a vehicle-mounted air source, wherein the hub is provided with two valve holes, a phase difference of the two valve holes is 180°, the valve nozzle is installed at one of the two valve holes, and the pressure relief valve is installed at another of the two valve holes;
wherein the pneumatic slip ring is installed on the main shaft, and a rotating portion of the pneumatic slip ring is configured to rotate synchronously with the hub;
wherein the valve nozzle is provided with a tire pressure sensor, the valve nozzle is configured to be integrated with a tire temperature sensor; the first air pipe is installed at an inflatable end of the valve nozzle through a threaded connection, one end of the one-way valve is installed on the first air pipe and another end of the one-way valve is connected to the first air pipe, and the first air pipe is connected to the pneumatic slip ring; the vehicle-mounted air source is installed on the main shaft and on a chassis suspension of a vehicle;
wherein the one-way valve is configured to inflate the tire through the valve nozzle; and
wherein the air storage tank is fixed on the main shaft, one end of the second air pipe is installed on the air storage tank, one end of the valve is installed at another end of the second air pipe, and another end of the valve is connected to the vehicle-mounted air source through the second air pipe.

2. The automatic constant pressure device for the hub tire system according to claim 1 , wherein the pressure relief valve comprises a rubber pad, a valve body, a spring, a valve core and a nut, wherein the rubber pad is assembled on the valve body fixedly, the valve body is hollow and is provided with an internal circular step, a tapered end of the valve core is installed on the internal circular step of the valve body, the spring is installed on one end of the valve core, the nut is installed at another end of the valve core, and the nut is threadably installed on an inner wall of the valve body.

Assignees

• Citic Dicastal Co Ltd

Inventors

• Lyu Jinqi
• Li Zhipeng
• Sun Hanbao
• Jin Hongfu
• Xu Yanfu
• Wang Yingfeng
• Liu Chunhai
• Zhu Zhihua

Classifications

• B60C23/16 Primary

  Arrangement of air tanks mounted on vehicles · CPC title

• B60C23/00318 Primary

  on the wheels or the hubs · CPC title

• B60C23/00354

  Details of valves · CPC title

• B60K7/0007

  the motor being electric · CPC title

• B60C23/00 Primary

  Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements · CPC title