Improved handheld air inflation tool

Abstract

The invention discloses an improved handheld air inflation tool comprising an outer casing. An air inlet cavity, a valve cavity and an air outlet cavity are arranged in the outer casing; a venturi pressure increasing valve is arranged in the valve cavity, an air inlet of the venturi pressure increasing valve is in communication with the air inlet cavity, and an air outlet of the venturi pressure increasing valve is in communication with the air outlet cavity; a compressed gas inlet port of the venturi pressure increasing valve is provided with an air source assembly; and an air inlet of the air inlet cavity is provided with a blocking piece which can be opened inwards in a one-way manner, an air outlet of the air outlet cavity is provided with a standard joint, and a special joint for external connection with an expansion function component is arranged on a cavity wall of the air outlet cavity. According to the improved handheld air inflation tool, straight tube type design is adopted,the air inflation interface can be externally connected with different air inflation joints and hoses with different lengths, external connection with a pressure relief valve or a barometer can be achieved, more functions can be increased, and safety and reliability in the air inflation process are guaranteed.

Description

technical field [0001] The invention relates to the technical field of inflatable tools for cushioning inflatable bags, in particular to an improved hand-held inflatable tool. Background technique [0002] When inflating the cushion air bag, a special inflation tool is used. Existing special inflatable tools have a single shape at present, and most of them are gun-type hand-held inflatable tools. This type of inflatable tool has simple functions, and requires external compressed air when inflating, and the trigger switch on the inflating tool controls the on-off of compressed air, and then completes the work of inflating the buffer inflatable bag. [0003] However, when the existing hand-held gun-type inflatable tool is inflating the cushion inflatable bag, because the inflatable tool is directly connected to the valve body, the position of the air valve is often a narrow space due to the limitation of the operating environment, while the inflatable tool It takes up a lot ...

AI Technical Summary

Problems solved by technology

[0003] However, when the existing hand-held gun-type inflatable tool is inflating the cushion inflatable bag, because the inflatable tool is directly connected to the valve body, the position of the air valve is often a narrow space due to the limitation of the operating environment, while the inflatable tool It takes up a lot of space, making it difficult to operate, and it is more likely to cause the inflatable tool to fall off from the valve body. The details are as follows: figure 1 shown

[0004] In addition, the existing hand-held gun-type inflation tool, due to internal structural design problems, affects the inflation speed, wastes inflation time, and is inefficient

In addition, when the air pressure in the buffer air bag gradually increases, it is impossible to judge whether the air pressure in the air bag reaches the standard operating pressure based on the experience of the operator, and neither overpressure nor underpressure can guarantee the safe use of the product.

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