Rotary type American and French universal air nozzle

Abstract

The invention discloses a rotary type American and French universal air nozzle. The air nozzle comprises an air nozzle main body, a middle block, an air nozzle head and an air nozzle pressing mechanism, wherein an air inlet channel and a cylindrical pin are arranged on the air nozzle main body, the middle block and the air nozzle head are connected into a whole and then are rotatably arranged on the cylindrical pin, a French nozzle air inlet channel, an American nozzle air inlet channel, a French nozzle air outlet hole and an American nozzle air outlet hole are formed on the middle block, inflation sealing rings are correspondingly arranged at outlets of the French nozzle air outlet hole and the American nozzle air outlet hole, an American nozzle lifting pin matched with a valve needle onan American inflation nozzle is arranged in the center of the American nozzle air outlet hole, and a French nozzle connecting hole and an American nozzle connecting hole which are in butt joint with the French nozzle air outlet hole and the American nozzle air outlet hole, and a French nozzle inserting hole and an American nozzle inserting hole are formed on the air nozzle head. The air nozzle isadvantaged in that the air nozzle is simple and reasonable in structure, light and convenient to operate and use, reliable in inflation connection, good in sealing performance and universality and thelike.

Description

technical field [0001] The invention relates to the technical field of tire inflation, in particular to a rotary American-French universal air nozzle which can be connected with a French-style inflation nozzle and an American-style inflation nozzle for inflation. Background technique [0002] At present, there are mainly two standards for inflation nozzles on tires, namely American inflation nozzle and French inflation nozzle. Dual-purpose air nozzle for inflating with French inflation nozzle. However, the existing dual-purpose air nozzles have the following problems during use: one is that a long waist-shaped sealing ring is used to seal the air between the mouth shell and the mouth body, the operation resistance is large, the hand feels heavy, and the sealing effect is not ideal. After the air nozzle is relaxed, the mouth body is often not retreated due to the frictional resistance of the long waist-shaped sealing ring, resulting in the sealing rings of the beautiful mout...

AI Technical Summary

Problems solved by technology

However, the existing dual-purpose air nozzles have the following problems during use: one is that a long waist-shaped sealing ring is used to seal the air between the mouth shell and the mouth body, the operation resistance is large, the hand feels heavy, and the sealing effect is not ideal. After the air nozzle is relaxed, the mouth body is often not retreated due to the frictional resistance of the long waist-shaped sealing ring, resulting in the sealing rings of the beautiful mouth and the French mouth not being completely relaxed, which makes it difficult to insert the air mouth next time; It will also cause deformation and damage if it is loosened. If the long waist-shaped sealing ring is loosened, it will easily cause air leakage defects.

The second is that when the wrench of the dual-purpose air nozzle is pulled and pressed, it will generate a downward friction force, which can cause the mouth body to rotate a small angle counterclockwise, resulting in skewing, which will not only cause heavy hand feeling, but also affect the inflation effect

The third is that the existing braided air belt is generally directly clamped on the air inlet joint by clamps. Although it is reliable, the grip of the overall air nozzle is poor; when the clamp is tightened, the edge is prone to sharp angles, which scratches the user. , there are hidden dangers of unsafe

In response to the above problems, many manufacturers and people of insight have carried out development and trial production, but so far there is no reasonable solution

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