Bicycle Pump with Universal Head

Abstract

A bicycle pump comprises a head, a socket, a ball, a retaining collar, a cylinder, and a piston unit. The head is provided with a connection portion and defines an air inlet and an air outlet. The socket is provided in the head and defines a round recess and a through hole. The ball can be retained between the socket and the retaining collar and rotated about its center in all directions. The cylinder defines a chamber therein. Also, the cylinder has a first connection portion at one end thereof and defines an air outlet at a center of the first connection portion. The piston unit is provided for conducting reciprocating motion along the chamber of the cylinder, so that air in the chamber can be forced out of the air outlet of the cylinder and finally forced out of the air outlet of the head to inflate a tire.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The present invention relates to a bicycle pump and, more particular, to a bicycle pump with a universal head.DESCRIPTION OF THE PRIOR ART[0002]Due to the rising of oil prices and the prevalence of exercise, many people use bicycles as a transport means for commuting and recreation. Riding a bike can bring benefits to the environment and achieve the effect of fitness. However, after a period of time, an inflated tire would gradually become flat. Thus, a user may prepare a floor bike pump at home. For enjoining the fun of riding a bike, a handheld bike pump is needed, which can be easily put into bags, pockets or can even be strapped to the bike. On the go, the handheld bike pump can be used to inflate a tire or help replacement of a tire whenever necessary.[0003]As to a conventional handheld bike pump, a tire should be turned to a position for easy connection to a valve of the tire, and then the tire can be pumped up properly. However, turning a...

AI Technical Summary

Benefits of technology

The present invention provides a bicycle pump with a universal head that allows the cylinder to be angled with respect to the head, making it easy to connect to the valve of a tire and pump smoothly. Additionally, the universal head design is simple and easy to manufacture, leading to lower costs.

Problems solved by technology

However, after a period of time, an inflated tire would gradually become flat.

However, turning a bike's tire is not always convenient.

In such condition, a proper connection between the bike pump and the tire's valve cannot be made easy.

However, the joint member is constructed of a ball with a threaded rod, which has difficulty in the manufacturing and to reach a precision requirement.

It is difficult to increase the quantity of acceptable joint members for final assembly.

Thus, the manufacturing cost of this bike pump is relatively high.

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