CN2097111U - Under pressure alarm for automobile tyre - Google Patents

Abstract

The utility model relates to an under pressure alarm for an automobile tyre; one end of a detective board of the utility model welded with an upper contact point is arranged on the upper end of a box, and the other end connected with a detective probe is stretched from the right side of the box; a lower contact point is arranged on a position corresponding to the upper contact point and the lower contact point is fixed on the left side of the box via a supporting post, an active fixing point is arranged on the supporting post on the right side of the box, and a connection in series detective circuit formed by a switch, an indicating lamp and power source are connected between the lower contact point and a welding piece on the detective board; the utility model is mainly used to detect gas pressure situation of the automobile tyres; the signal can not be indicated in normal gas pressure, and the singal can be delivered in non-pressure or under pressure.

Description

Under pressure alarm for automobile tyre

The invention belongs to vehicle tyre and can in time send a kind of detecting device of alerting signal when under-voltage.

At present, on automobile and imported auto that China produces, to detecting the equal beyond example of technology of tyre underpressure, it is blank that this technology still belongs to country.Under general normal driving situation, chaufeur is often with the personal experience, from tire porthole core, utilize air-pressure gauge to observe tire and have or not air pressure or adopt the method for pin treading wheel tire to check tire according to the exhaust situation, time-consuming, the effort of these methods, and judge inaccurate.Analysis and judgement from some motor traffic accidents, will influence the balance of automobile when motor tire is under-voltage, cause automobile in the way of advancing, to run into Uneven road when smooth, body vibrations, jolt and rise and fall very big, caused unsafe factor, particularly serious is that tire is fried quick-fried, easily causes accident potential, and chaufeur is judged by accident in driving because the vehicle failure that tyre underpressure causes.

The purpose of this invention is to provide one in vehicle is advanced the way, chaufeur can observe directly a kind of warning device of the under-voltage signal of display of tyre in operator's compartment.This device can make chaufeur when driving, and only need open the master cock of attaching on the automobile instrument panel, and is shinny according to indicator lamp, just can know the tyre underpressure fault of understanding the under-voltage or entrucking overload of motor tire and causing.

Circuit of the present invention is powered voluntarily by automotive battery, the element of selecting for use has master cock K, available small-sized toggle switch or utilize switch on the automobile instrument panel, indicator lamp ZD, 12V on the available car～24V bulb or light-emitting diode is installed on the gauge panel, the electrical connecting wires plastic coated wire of CP0.35mm, positive source connects indicator lamp, negative pole joint detection plate, and the voltage on its voltage and the use vehicle is identical.In automobile normal running, when tire pressure was full, rotating speed was normal, and the spy contact of check-out console does not reach tire, and last contact point and following contact point are in normally open, and circuit disconnects, and open master cock this moment, and indicator lamp does not work, and showed that the driving tire is normal.When automobile under steam in case when the tyre underpressure situation occurring or during the entrucking overload, under the situation that does not have air pressure of the tire that rotates, the outer shape distortion of tire, rotating speed is unusual, the tire of distortion touches the spy contact of check-out console and produces friction, cause the check-out console action, on causing, the automatic adhesive of two contact points down, be in conducting state, electric current flows through, after opening master cock, indicator lamp is shinny, and the signal of display automobile tyre underpressure reminds chaufeur to pay close attention to and the timely auto body swing of removing tyre underpressure in the driving way and causing simultaneously, the safety hazard that tilts and jolt, at any time remove a hidden danger, accident is eliminated in bud.What is more important has alleviated chaufeur for worrying whether trouble and worry in working order of driving tire.This apparatus structure is simple, is easy to manufacture, and is cheap, is widely used in various transportation and communications, and can save substantial contribution for the maintenance of vehicle.

The present invention has following accompanying drawing:

Fig. 1 is a structural representation of the present invention

1-box shell 2-check-out console 3-visits contact 4-and goes up contact point

Contact point 6,7-fixed orifice 8-attachment point 9-alive spring under the 5-

10-spring guide 11-weld tabs

Fig. 2 is an electric hookup of the present invention.

Reaching embodiment in conjunction with the accompanying drawings does so that this undervoltage warning device box structure, the long 9cm of its box, wide 5cm, high 4.5cm, the moulded section of material selection plastics to be described in detail in detail invention.The box left surface leaves two through wires holes, and right flank leaves the check-out console extending port.Check-out console (2) is to adopt the rubber-like steel disc, the length of check-out console in box is 7.8cm, stretching out the outer length of box selectes according to the vehicle tyre of different model, the marginal portion of box is stained with sealing band, the check-out console extending port is sealed with the rubber skin, when preventing that automobile from travelling in the rainy day, the muddy water that wheel has been got rid of enters in the box, the sensitivity that influence is electrically connected.Stretch out the outer check-out console end of box and need be processed into the detection probe (3) of the smooth circular arc in edge, be used for the feeler inspection motor tire.There is a fixed leg on the right side in box, above attaching the effect of living and fixedly to light lever, the check-out console utilization attachment point of living moves, and impels two contact point adhesives.Be welded with below the end of check-out console in box a latten(-tin) that becomes semi-circular shape as on contact point (4), the high 0.2cm in its contact, following contact point (5) is fixed on left side in the box with pillar, the high 0.15cm in this contact, pillar are apart from the high 3.3cm in box bottom surface, and the gap of two contact points is 0.4cm, the spring (9) of high 4.5cm also is equipped with in the center in the box, the outside of spring is with conduit (10), and conduit is 1.1cm apart from the check-out console gap, and the effect of spring is to make check-out console have adhesive and open circuited elastic force.Fixed orifice (6), (7) are used for box is fixed on the flange of automobile back wheel bearing, and detecting the spacing of visiting contact and tire is 5-8mm, is fixed on the weld tabs (11) on the check-out console, is used for welding lead.

Claims (2)

1, a kind of car check tyre underpressure annunciator, especially the under-voltage warning device of motor tire during a kind of inspection is travelled, it is characterized in that the right flank at box shell (1) is provided with the extending port of check-out console (2), check-out console (2) stretches out from the extending port of the check-out console (2) of shell (1), extending port is sealed with rubber, the end that check-out console (2) stretches out the box shell is connected with probe (3), the end of check-out console in box shell (1) is connected with contact point (4), go up the position of contact point (4) relatively, be provided with down contact point (5), following contact point (5) is fixed on left side in the box shell with pillar, check-out console (2) supports by attachment point alive (8) on the anchor post that is located at the interior right side of box shell (1) and spring (9), spring (9) is installed in the spring guide (10) on the shell (1), is connected with switch (K) between the weld tabs (11) on contact point (5) and the check-out console (2) down, the series connection testing circuit that indicator lamp (ZD) and power supply are formed.

2, undervoltage alarm according to claim 1 is characterized in that the gap of last contact point (4) and following contact point (5) on the check-out console (2) is 0.4 centimetre.

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