A tire inner support safety locking device

Abstract

The invention relates to the technical field of automobile tires, and discloses a tire inner support safety locking device, comprising a spoke, the outer side of the spoke is fixedly connected with a hub, the outer side of the hub is fitted with a tire, and the middle part of the outer side of the hub is fixedly installed with a support base. Through the setting of the support rod, the piston, and the limit block, if the tire is at low pressure or zero pressure, the inner side of the tire tread will squeeze the support rod during rotation, so that the block is separated from the second outer ring gear, and The limit block at the other end of the support rod will protrude from the through hole at the bottom of the installation cavity, so as to realize the second locking of the support rod and ensure that the support rod cannot move in the opposite direction. At this time, the support outer ring and cylindrical roller can be locked together. It rotates around the support base to reduce the friction between the support outer ring and the inner tread of the tire, thereby effectively alleviating the frictional heat generation of the rubber tread and avoiding high-temperature aging and irreparable wear of the rubber.

Description

Technical field [0001] The present invention relates to the field of automotive tire technology, specifically a tire inner support safety locking device. Background [0002] Tires are the only parts of the vehicle that come into direct contact with the road surface and have an important impact on vehicle performance. However, the vehicle equipped with pneumatic tires has hidden dangers such as puncture and deflation, puncture tires, which seriously affect driving safety and maneuverability, therefore, the internal support tires came into being, and the inner support tires are pneumatic tires that are placed on the wheels near the bead part in the inner cavity of the outer tires, and when the tires leak in the driving, they can still continue to drive safely for a certain distance, and people in order to ensure that the support device inside the tire will not affect the performance of the tire itself during the driving process. The inner support is usually fixed to the hub and loc...

AI Technical Summary

Problems solved by technology

For example, the publication number: CN105459739B discloses a tire inner support body for self-adaptive rim assembly and its installation method by setting a backing ring, an inner ring and an outer ring on the tire inner support body, and the inner ring, the backing ring, and the hub There is a cavity with an opening between them, and the cavity is filled with an elastic lining ring. Although it can absorb the shock and protect the wheel hub when the tire inner support structure is working, when the tire rotates at a high speed, the tire will generate a large centrifugal force, resulting in The deformation of the elastic lining ring will affect the dynamic balance of the tire. Secondly, during the high-speed rotation of the tire, the high-pressure gas inside will be squeezed repeatedly, which will easily form a higher temperature, which will also affect the life of the elastic lining ring.

[0003] But the existing supporting device in the tire still has the following deficiencies in the process of locking: first, because the supporting device and the rim are tightly installed together in the inner tube of the tire, there is a need There is a certain pre-tightening force to ensure that there should be no relative sliding during the tire movement, otherwise the inner support will not only lose its original function, but also affect the movement performance of the tire; secondly, due to the inner support safety tire Most of the auxiliary supports are made of heavy materials such as metal and rubber, which have many shortcomings such as serious heat generation and heavy weight when the tire is rolling at zero pressure, which affects the maneuverability and handling stability of the vehicle. It is easy to cause the tire to run off the ring or damage the suspension system of the vehicle, which cannot meet the driving requirements of heavy load, high maneuverability and long distance of the vehicle

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