Tire pressure monitoring alarm device

Abstract

The invention discloses a tire pressure monitoring alarm device, which comprises a bottom nut which is screwed at a valve core and a shell which is screwed on the nut, the top of the shell is sealed by a lens, and the shell is internally provided with an alarm circuit board, a battery, an elastic metal sheet, a reference cavity component and an inflating valve spring sequentially from top to bottom; the anode of the alarm circuit board is connected with the anode of the battery, and the cathode of the alarm circuit board is connected with the elastic metal sheet below the cathode of the battery; and the elastic metal sheet attaches to another elastic metal sheet on the top surface of a reference cavity at the top of the reference cavity component, and the space above the reference cavity inside the shell is sealed as a monitoring cavity. The pressure of the reference cavity and the initial pressure of the tire are the same, the pressure in the monitoring cavity and the real-time pressure of the tire are the same, and when the pressure difference of the reference cavity and the monitoring cavity reaches a certain value, the elastic metal sheets are deformed to contact with the cathode of the battery, thus conducting the alarm circuit board. By adopting the monitoring device, the tire pressure can be known in real time, and pressure can be timely supplemented to the tire with low pressure, thus keeping good manipulability and safety performance of an automobile.

Description

technical field [0001] The invention relates to a device for real-time monitoring of automobile tire pressure. Background technique [0002] Car tires usually have a standard pressure. When the tire pressure is low, the handling performance of the car will be affected, the wear of the tire will be increased, and the energy consumption of the car will be increased. Especially when the pressure of one of the car tires is low and the pressure of the four tires is unbalanced, not only the above-mentioned problems will exist, but also the braking distance of the car will be prolonged, and even the possibility of deviation and overturning may occur, which will have a negative impact on the safety of the car. Influence. Contents of the invention [0003] The present invention aims to provide a tire pressure monitoring and alarming device capable of monitoring tire pressure in real time, so as to maintain the good operability and safety performance of the automobile. [0004] Th...

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Problems solved by technology

[0002] Car tires usually have a standard pressure. When the tire pressure is low, the handling performance of the car will be affected, the wear of the tire will be increased, and the energy consumption of the car will be increased.

Especially when the pressure of one of the car tires is low and the pressure of the four tires is unbalanced, not only the above-mentioned problems will exist, but also the braking distance of the car will be prolonged, and even the possibility of deviation and overturning may occur, which will have a negative impact on the safety of the car. influences

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