Rim with valve stem protection cover

Abstract

The invention discloses a rim with a valve stem protection cover, which comprises a rim, a valve stem protection cover and a valve hole, wherein the rim is formed by rolling; the valve stem protection cover is arranged on the rim through the processes such as stamping formation, riveting, welding and the like; the valve hole is formed in the valve stem protection cover. The rim disclosed by the invention is simple in structure and low in manufacturing cost, and batch production can be realized by use of the traditional processing technology; with high strength, the valve stem protection cover has a perfect protection function, can thoroughly protect the valve stem from cutting or dislocation on the rim, and also can prevent burst of the valve steam and the like; the invention is applicable to rims of various inflatable wheels.

Description

technical field [0001] The invention relates to the field of rims of pneumatic wheels, in particular to a rim with a valve protective cover. Background technique [0002] As everyone knows, an air valve hole must be set on the rim of the inflatable wheel, and the air valve passes through the air valve hole on the rim so as to be connected with an external inflation device. [0003] In the past, most of the inflation devices on the tires of bicycles, bicycles, children's vehicles and small power vehicles used a British valve. It is fixed on the rim to avoid misalignment and reinforcement of the valve; however, the cost of the valve with a compression nut is relatively high, and the phenomenon of loosening or sliding teeth often occurs during use, resulting in loss of function. [0004] In recent years, an American-style valve has been widely used on various inflatable wheels; the structure of the American-style valve is relatively simple and applicable, and the "compatibilit...

AI Technical Summary

Problems solved by technology

[0003] In the past, most of the inflation devices on the tires of bicycles, bicycles, children's vehicles and small power vehicles used a British valve. It is fixed on the rim to avoid misalignment and reinforcement of the valve; however, the cost of the valve with a compression nut is high, and it often loosens or slips during use, resulting in loss of function

[0004] In recent years, an American-style valve has been widely used on various inflatable wheels; the structure of the American-style valve is relatively simple and applicable, and the "compatibility" is relatively good. It can be replaced, repaired, inflated, etc. in many places. , to bring more convenience to the user; however, there is no compression fixture between the root of the American valve and the rim, and the valve passes freely through the valve hole on the rim; since there is no valve between the valve and the rim protection, which can easily cause the valve to become misaligned on the rim

[0005] Through the observation of the market, it is found that the rims of most rickshaws, bicycles, children's bicycles and small power vehicles are made of metal materials through roll forming process. Most of them use relatively thin metal materials. Due to the limitation of processing technology, at present, all the rims formed by rolling have the same thickness at the valve hole as the base material, and no reinforcement measures have been taken; such rims if When used in conjunction with the American valve, consumers can easily pull the valve sideways during the inflation process, and there will be extrusion between the root of the valve and the rim, and the rim around the valve hole will cut the rubber at the root of the valve. During the driving process of the vehicle, it will cause air leakage and tire blowout, resulting in greater safety hazards and economic losses.

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