CN2581217Y - Digital alarm for tyre air pressure - Google Patents

Abstract

The utility model provides a digital alarm for tyre air pressure, which is technically characterized in that a tight rubber sleeve, and a contact type switch of a valve inside are arranged in a joint assembly connected with an air nozzle of a tyre; screws arranged on an installation seat can regulate discretional alarm air pressure; transmitting holes in a transmitter on the alarm is filled with latex. After tried out, the utility model completely has the characteristics of convenient assembly and disassembly, high sensitivity and durability. When air pressure is not enough, the utility model can accurately display the position on the left side or the right side, at the front part or the back part, or in a certain row with insufficient tyre air pressure, and can give alarms to remind a driver to eliminate unsafe hidden trouble in time. Thus, a driver can drive a vehicle well with rapt attention so that the safety of life and possessions can be ensured.

Description

Digital tire pressure alarm

Technical field:

The utility model relates to a kind of for motor vehicle warning device, especially a kind of digital tire pressure alarm.

Background technology:

Vehicle is travelling, and potential safety hazard all perplexing each chaufeur, is whenever walked tens kilometers distance all the time one by one, will stop and beat tire, hears air pressure.So not only lost time but also wasted oil plant, also brought certain hidden danger, and inaccurate, the problem that after inspection, occurs, hard to guard against especially.As: just check out, also do not walk how many kilometers, tire is gas leakage just, if chaufeur does not know that air pressure is not enough, will cause and run single tire, do not walk how far tire will be bad, cause the certain economic loss, more seriously bring the hidden danger of fried tire, behind the fried tire if single tire travels, chaufeur can't cruising and can't be grasped balance, thereby causes the major traffic accidents of car crash.

Summary of the invention:

The purpose of this utility model provides a kind of highly sensitive, and mounting or dismounting are convenient, can accurately show it is the left side or which row's low tyre of the right, can in time eliminate the digital tire pressure alarm of hidden danger.

Technical solution adopted in the utility model is: the connecting wheel nausea is chewed and is provided with tight rubber coating and valve inside contact switch in the joint; The screw that is contained on the mount pad can be regulated any warning air pressure; Transmitting aperture is filled with latex in the projector on the annunciator.

This annunciator is through on probation, has easy accessibility fully, highly sensitive, long-lived characteristics when air pressure is not enough, can accurately show it is the left side or the right, before being back or which row's low tyre, warning also reminds chaufeur in time to eliminate hidden danger, and the car of concentrating one's energy to hold successfully is guaranteed life and property safety.

Description of drawings:

Elaborate below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural front view.

Fig. 2 is the utility model structure birds-eye view.

Fig. 3 is the utility model structure left view.

Fig. 4 is the utility model emission part circuit diagram.

Fig. 5 receives partly circuit diagram for the utility model.

The specific embodiment:

This digital wheel air pressure annunciator (is called in the following text: annunciator) be installed on the semiaxis bolt of automobile front and rear wheel by mount pad 18.Chew joint 9 by the connecting wheel nausea and the gas of annunciator and motor tire is chewed closely be linked together, and back down the valve inside that the wheel nausea chews the compression air chamber in the tire is connected with the compression air chamber of annunciator.The tire of installing annunciator is then chewed inflation on the permanent seat 15 by gas and is chewed 16 and inflate in tire through withstand voltage bend pipe 10.Pressurized air in the tire imports flat bend pipe 8 inner chambers of pressure sensing by pressure sensor joint 14, the flat bend pipe 8 of pressure sensing causes corresponding distortion with the variation of air pressure, thereby drive is welded on the shift in position that turns shape conducting strip 17 of pressure sensing bend pipe end live contact, cause the distance between the electric contact on the warning air pressure adjustment chip module 11 of the electric contact on the conducting strip 17 and the live contact that can rotate around the axis to change, control circuit is connected when this two electric contact abuts in together, and then control circuit disconnects when this two electric contact separates.Pressing source switch 3 will be contained in battery in the battery case 5 and be access in the numerical frequency projectors that are installed in the digital wireless launcher mounting box 6 (call in the following text: circuit projector) makes projector be in open state.When the air pressure in tire is in the low voltage value that needs warning, by the set screw 13 of regulating warning infrabar value air pressure adjustment sheet 11 and the electric contact that turns on the shape conducting strip 17 are adjusted to the control circuit that just reclines mutually and connect projector, this moment, annunciator was in the state that sends warning, projector is launched specific frequency of radio under this state, frequency of radio is installed in sends specific caution sound and light signal after the interior receptor of operator's compartment receives.The effect of back-moving spring 7 is to guarantee that air pressure adjustment sheet 11 is in contacted state forever with set screw 13 in above-mentioned adjustment.Then chewing 16 by inflation charges into required tire working air pressure in tire, because the flat bend pipe 8 of pressure sensing causes the distortion that the profile radius of curvature increases with the increase of its inner chamber air pressure, thereby cause the electric contact on the conducting strip 17 to separate with electric contact on the air pressure adjustment sheet 11, so emitter control circuit is disconnected, this moment, annunciator then was in the mode of operation of monitoring tire pressure.When tire because various factors causes and becomes flat that to cause the tire inner air pressure to be reduced to previous when mixing up the low voltage value that needs warning, the flat bend pipe 8 of pressure sensing is owing to produce the distortion that the profile radius of curvature diminishes, electric contact on electric contact on the drive conducting strip 17 reclines on the air pressure adjustment sheet 11, the control circuit of projector is switched on, and annunciator promptly sends alerting signal.

Be at annunciator under the state of monitoring tire pressure, whether enter the reliability of mode of operation for further checking it, only need press operating switch 1, then this moment, annunciator promptly sent alerting signal as entering mode of operation.

Drawn annunciator is applicable to the twin tire of trailing wheel one side among the figure, and the conduit of withstand voltage bend pipe 10 is used for inside tire than the elder, and the shorter one then is used for outside tire.4 is body case of annunciator among the figure, and 2 is mudwing, and 12 for adjusting the mount pad of caution gas-pressure component, and 14 is the pressure sensor joint.

Claims (1)

1, a kind of digital tire pressure alarm comprises sound light alarming circuit, and pressure sensor device is characterized in that:

1. the connecting wheel nausea is chewed and is provided with tight rubber coating and valve inside contact switch in the joint (9);

2. the screw (13) that is contained on the mount pad (12) can be regulated any warning air pressure;

3. the interior transmitting aperture of the projector on the annunciator (6) is filled with latex.

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