CN2092752U

CN2092752U - Display and alarm device for pressure insufficiency or leak of automobile tyre

Info

Publication number: CN2092752U
Application number: CN 91205148
Authority: CN
Inventors: 兰炳旺; 兰建勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-05
Filing date: 1991-04-05
Publication date: 1992-01-08

Abstract

The utility model relates to a display and alarm device for pressure insufficiency or leak of an automobile tyre, composed of a displaying alarm, a tunable probe with a rocker bar and a power switch which switches on or closes with the rocker bar. The utility model is installed on the wheel shaft of the motorcar. When the wheel shaft of the tire with insufficient pressure or leaked pressure descends to the limited degree and the probe contacting with the road surface swings back an angle, the power switch gangs to connect the circuit with the power. The displaying alarm emits the indication of light and sound.

Description

Display and alarm device for pressure insufficiency or leak of automobile tyre

The utility model relates to a kind of doughnut because of the demonstration, the warning device that lack, gas leakage causes the air pressure deficiency.

Automobile, particularly goods vehicle and coach bus are wanted the air pressure of running check tire, check the tire pressure situation in the especially long-distance driving process especially at any time, promptly inflate timely or re-type in case find the air pressure deficiency, to guarantee normal transport and traffic safety.Checking that at present tire lacks, the gas leakage situation, all is artificial parking checkings.Scarce, the gas leak phenomenon of generation tire when driving, owing to be difficult in time being found, often be damaged or drive a vehicle and just can know when abnormal sensory takes place to tire, cause the unnecessary damage of tire, influence normal transport, strengthened transportation cost, and driving accident very easily takes place, even cause personnel's the injures and deaths and the loss of property.

The purpose of this utility model provides a kind of simple in structure, installation, easy to use, give birth to when driving hour wheel fetal hair lack, gas leakage makes wheel shaft reduce to a certain degree because of under-inflation, the time, the automobile that can show automatically and report to the police lacks, gas leakage demonstration, warning device.

Doughnut lacks, the gas leakage displaying alarm by demonstrations, alarm (13), have rocking bar (4) adjustable probe, with the power switch (11) and casing (2) formation of rocking bar interlock carrying out closure or openness.Casing has fixing card (1), displaying alarm can be fixed on the wheel hub.Rocking bar one end is hinged on the casing, and rocking bar is with probe swing, and power switch interlock, closure or openness will show, warning circuit energized or make down circuitry.Rocking bar has retracing spring (5), rocking bar swing back self-return under the retracing spring effect.

Doughnut lacks, further improving of gas leakage displaying alarm is, adjustable probe is made of probe (9) and connecting rod (8), and connecting rod one end and rocking bar end are hinged.On the rocking bar of hinge point stop configurations is arranged, rocking bar is around rotating counterclockwise with the hinged jointed shaft of casing during the connecting rod counter-clockwise swing.When connecting rod is swung clockwise, the rocking bar location, connecting rod clockwise rotates around jointed shaft.Rocking bar has backstop location-plate (6), and location-plate is fixed on casing lower port place.Probe is that plug-in type is threaded with connecting rod, and probe length can be screwed adjusting, and being positioned on the probe light face bar section connecting rod partly has holding device the probe extension elongation can be located.

When utilizing doughnut to lack, leak gas displaying alarm, utilization fixedly clamps it and is fixed on the wheel shaft, regulates probe length and location according to request for utilization.Probe end contact road surface when underinflation of tire makes wheel shaft drop to a certain degree, probe is swung an angle backward under the friction force effect, interlock takes place and the closed Display and Alarm Circuit of connecting in power switch, and display alarm carries out the light demonstration and sends chimes of doom.Stop after maintenance or the inflation, open displaying alarm again, because probe disengages with ground, rocking bar restores, and power switch is opened, and displaying alarm no longer sends light and shows and chimes of doom.

Doughnut lacks, the gas leakage displaying alarm, and the tire that takes place in the time of can be to driving lacks, gas leak phenomenon can in time be found, has reduced the safety of the damage and the driving of tire.It is simple in structure, installation, maintenance and easy to use.

Accompanying drawing is an embodiment of the present utility model, below the structure accompanying drawing describe the utility model in detail.

Fig. 1 is that doughnut lacks, gas leakage displaying alarm structural drawing.

As shown in Figure 1, doughnut lacks, leaks on the casing (2) of displaying alarm the whole fixedly card (1) that connects, and device can be fixed on the wheel shaft by fixing card.Probe rocking bar (4) is the shape bar of a side opening, and an end is hinged by hinge (3) and casing.Rocking bar retracing spring (5) one ends are fixed on the casing, and the other end connects with rocking bar.Rocking bar backstop location-plate (6) is fixed on casing end opening place, and rocking bar keeps the location at retracing spring and the effect of backstop location-plate.Probe connecting rod (8) is hinged by jointed shaft (7) and rocking bar, and the part internal thread is arranged in the connecting rod chamber, on probe (9) bar section external thread is arranged, and probe rod inserts in the connecting rod chamber and is threaded with connecting rod, screws probe rod and can change the probe extension elongation.Connecting rod is positioned on the probe light face bar section bar section partly location jackscrew (10), probe can be held out against the location.The boss that contacts on power switch (11) shaft-like touching button top and the rocking bar contacts, when rocking bar carries out counter-clockwise swing, and the release-push touching button, shaft-like touching button stretches out switch closure under spring action.Rocking bar is homing (state as shown) under the retracing spring effect, and rocking bar is pushed touching button withdrawal, switch open.Power switch electrically connects by lead (12) and demonstration, alarm (13).

During use, when tire lacks, leakage, probe end contacted with the road surface when gas made wheel shaft drop to a certain degree, automobile is popped one's head in to overtake and is swung an angle backward under the friction force effect, stops rocking bar is rotated counterclockwise around jointed shaft (3) because connecting rod is subjected to the rocking bar wall.The rocking bar release switch button, button displacement to the right under spring action (shaft-like touching button by switch in stretch out) is with switch closure, display alarm circuit energized, pilot lamp is lighted, and alarm sounds the alarm, and stopping cuts off the electricity supply disengages with the road surface to inflation of tire hind axle rising probe, probe is returned to shown position under the effect of rocking bar retracing spring, after inserting power supply, extrude and be in opening because the switch touching button is subjected to fork, display alarm does not have light and shows and chimes of doom.When probe being swung forward when reversing and owing to other driving situations, because rocking bar is positioned shown position under retracing spring and backstop location-plate double action, the probe drivening rod makes connecting rod clockwise rotate around jointed shaft (7), and show, alarm do not send that light shows and chimes of doom, thereby prevented the generation that mistake is shown, reported by mistake.

Claims

1, scarce, the gas leakage displaying alarm of a kind of doughnut, the power switch (11) and the casing (2) that it is characterized in that by display alarm (13), have the adjustable probe of rocking bar (4), carry out closure or openness with rocking bar interlock constitute, rocking bar one end is hinged on the casing, rocking bar is with the interlock of probe swing power supply, switch or closure, Display and Alarm Circuit energized or outage, and rocking bar has retracing spring (5), rocking bar adds return automatically under the retracing spring effect.

2,, gas leakage displaying alarm scarce by the described doughnut of claim 1, it is characterized in that adjustable probe is made of probe (9) and connecting rod (8), connecting rod one end and rocking bar are hinged, the rocking bar hinge point has stop configurations, probe is that plug-in type is threaded with connecting rod, have tight surely device probe can be located on the connecting rod, rocking bar has backstop location-plate (6), and the backstop location-plate is fixed on casing lower port place.