Tyre digital gas-filling meter

Abstract

The invention is concerned with a charge meter for tire with number display. It relates to rubber component for charge, shell cover, charge component, the first spring, press-sensing part, discharge component, handle, air intake component, the second spring, shell. The said charge component and air intake component are inside of the shell in turn and the centerlines of them are coincidence. The said air intake component relates to air close pipe, air intake tie-in. The rubber component for charge connects with the back end of charge component and the said first spring is on the charge component and there is some distance between the front of charge component and the back end of air close pipe. The front of air close pipe connects with air intake component through the second spring. The press-sensing part is inside of the space formed by shell and shell cover. The discharge component and handle are on the shell. It is easy for production with low cost, credible stability, large sensitivity, easy switch of unit and without error of vision.

Description

technical field [0001] The invention relates to a tire inflation device, in particular to a digital display tire inflation gauge. Background technique [0002] Existing tire inflation gauges mostly use self-tapping screws to fix the pressure-sensitive chamber on the casing. The tire inflation gauge that adopts this connection mode just cannot be used safely when inflating the engineering machinery tire of high pressure. The self-tapping screw is removed several times, and its self-tapping hole will be destroyed, resulting in a significant drop in the fastening force of the pressure-sensitive chamber, and even the scrapping of the entire shell. Maintenance and disassembly during production is an inevitable problem. The structure of this structure The pressure-sensitive chamber will cause a relatively high scrap rate of the shell, which increases the production cost. The existing pointer tire inflation gauge adopts mechanical means to collect pressure, which has low sensitiv...

AI Technical Summary

Problems solved by technology

[0002] Existing tire inflation gauges mostly use self-tapping screws to fix the pressure-sensitive chamber on the casing. When inflating high-pressure construction machinery tires, the tire inflation gauge with this connection method cannot be used safely

The self-tapping screw is disassembled several times, and its self-tapping hole will be destroyed, resulting in a significant drop in the fastening force of the pressure-sensitive chamber, and even the scrapping of the entire shell. Maintenance and disassembly during production is an inevitable problem. The structure of this structure The pressure-sensitive chamber will cause a relatively high scrap rate of the shell and increase the production cost

The existing pointer tire inflation gauge adopts a mechanical method to collect pressure, which has low sensitivity to air pressure changes; the pointer indicates that the dial reading will produce visual errors when the line of sight is tilted, resulting in inaccurate readings; the minimum scale reading is 0.1BAR; so the pointer tire inflation gauge has The disadvantages of low precision and high requirements for machining precision of some parts collected

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