Handheld detector for penetration of metallic foreign bodies in automobile tire

Abstract

The invention discloses a handheld detector for penetration of metallic foreign bodies in an automobile tire. The handheld detector comprises a main body, wherein at least three metal detecting heads arranged in array form are arranged in the main body, correspondingly arranged LEDs (light emitting diodes) are located over the metal detecting heads arranged in array form, and the metal detecting heads and the LEDS are connected with a speaker and an electrical appliance control device. An electromagnetic shielding plate is arranged between the metal detecting heads and the LEDs; the metal detecting heads arranged in array form are located on a detecting head fixing tray; the electrical appliance control device comprises a power supply, a power supply switch and a detector connected with teach other; and radius of each metal detecting head is 1-3.5 cm. The array type small metal detecting heads are convenient for detecting and positioning, since the detecting heads are small, detection can be accurate, and the foreign bodies can be conveniently positioned; since many detecting heads are provided, detection efficiency can be improved, detection time can be shortened, and metallic foreign bodies, such as screws, nails, scrap irons and the like, penetrated into the automobile tire can be detected so as to discover the hidden danger of tire blowout in advance.

Description

technical field [0001] The invention relates to a metal foreign matter penetration detector of an automobile tire. Background technique [0002] Metal foreign objects such as screws, nails, and iron filings that have been pierced by car tires during driving are potential causes of tire blowouts; as the tire load increases or high-speed rolling is carried out, metal foreign objects will accelerate the piercing of the tires, causing air bursts fetal. According to the statistical analysis of traffic accidents on expressways by the traffic department, 40% of traffic accidents are caused by tire failure. Among them, accidents caused by flat tires accounted for more than 70%. This type of traffic accident is often dangerous, and if this type of accident occurs on the expressway, the danger is even greater. If the hidden danger of automobile tire blowout can be eliminated in advance, the incidence of vicious accidents will be greatly reduced. [0003] The existing tire pressure...

AI Technical Summary

Problems solved by technology

[0003] The existing tire pressure monitoring system, relying on the electronic sensor installed inside the tire, only sends out an alarm signal when the tire pressure is lowered due to foreign matter piercing the tire, so that the driver has no time to respond and cannot fundamentally prevent accidents. It is a passive defense secondly, the installation of the device is complicated, the working conditions are high, and the cost of the device is also limited, so it is only used in high-end cars at present

[0004] Existing metal detectors are large in size and low in sensitivity. Because the wheel is very close to the steel plate (metal) of the body, it will cause interference and misjudgment of metal detection and cannot be used; secondly, due to design limitations such as shape and structure, it cannot be used for tire testing

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