Tyre pressure detecting and warning device

Abstract

The present invention relates to a tire pressure detection and warning device. It includes a detection unit lock-fixed on the tire valve, a reverse locking unit for preventing said detection unit from being drawn out arbitrarily and a receiving warning unit which can be placed on the electric cigarette lighter for use. Said detection unit is composed of insulating fixed ring, spring sheet, probe and flexible air pressure chamber. Besides, said invention also provides their connection mode and the working principle of said detection and warning device.

Description

Technical field [0001] The invention relates to a pressure detection device, in particular to a mechanical tire pressure detection and warning device that saves electricity, prevents unauthorized removal and has high accuracy. Background technique [0002] After a vehicle has been driving for a period of time, or under the influence of sun exposure and night temperature drop, its tires are prone to pressure relief, making the tire pressure lower than the normal value of 28psi, which is a potential danger for safe driving, especially It is a high-speed vehicle, if it bursts due to insufficient tire pressure, the consequences are unimaginable. [0003] Therefore, many practitioners have invested in the research and development of tire pressure detection and warning devices for driving vehicles. Such patents can be found in Announcements No. 536489, No. 400811, No. 149143, No. 177543, No. 560445, No. 574977, 090946, 100539, 396974, etc. The existing patents previously applied for ca...

AI Technical Summary

Problems solved by technology

[0005] Find in practice, this existing tire pressure detector still has unsatisfactory part, 1, as figure 1 As shown, the receiver 18 is arranged in the car through a box body, and it must be connected with the power cord in the car to supply the required power, so it is not very convenient and ideal to use, and the receiver 18 must find another space Installation, easy to damage the overall feeling of the car

2. If figure 2 As shown, the detector is fixed on the gas nozzle 16 through the rotation of the screw joint 15, so anyone only needs to reverse the detector to steal it, and the theft rate is very high, which is disturbing; As a result, the screwed joints are easy to loosen, which reduces the accuracy of tire pressure detection. When the loosening is serious, the detector may fall off or fly out when the tire rotates at high speed.

3. When the vehicle is being repaired or pumped up, the detector needs to be removed. Since the conductive slide 11 moves up and touches the contact 17, a conduction power supply state is formed. However, the power of the button-shaped battery 13 is limited, and the power supply is easily exhausted, so Batteries must be replaced frequently13

4. The combination of the detector body 10 and its various internal parts is too loose, and it is easy to loosen during rotation or touch by mistake to send an error signal, which reduces the reliability of its use and has a high failure rate

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