CN2175699Y

CN2175699Y - Alarm for automobile wheel

Info

Publication number: CN2175699Y
Application number: CN 93213199
Authority: CN
Inventors: 杜武已
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-18
Filing date: 1993-05-18
Publication date: 1994-08-31
Anticipated expiration: 2003-05-18

Abstract

The utility model provides an alarm for automobile wheel, which is composed of a contact switch, alarm signals and electrical source, wherein, the alarm signals are installed in a driving cabin by connection; the contact switch is installed on a fixed frame of a middle shaft of the wheel. When deflation or an accident occurs for the automobile wheel, deformation and subsidence of the middle shaft of the wheel can make the contact switch close, and an alarm circuit emits the alarm signals to a driver so that the driver can discover faults in time and carry out maintenance.

Description

Alarm for automobile wheel

The application relates to mechano-electronic class alarm technique, especially a kind of motor tire annunciator class.

All kinds of automobiles, especially heavy duty band trailer is in the way of travelling, tending to occur tire loses heart, spindle nose is prominent to be split, common accidents such as check screw is loosening, as untimely maintenance, gently then cause tire to scrap, heavy then spindle nose fracture appears, tire is thrown various severe traffic accidents such as injuring pedestrian or building by a crashing object out.And the accident omen that the driver occurs wheel in driving is difficult in time find.

The application's order is exactly to disclose a kind ofly can in time report the motor tire annunciator that the accident omen appears in wheel to the driver.

Technical scheme is as follows: the motor tire annunciator contains the warning circuit of being made up of direct supply, alerting signal, contact switch.Contact switch is by Switch main body and be fixed on fixed contact on the body, and often opens the elasticity armature contact and form, and this contact switch is fixedly mounted on the fixed mount of axletree.

Various motor tires just all can cause the decline of tire center shaft at et out of order, the contact switch of annunciator is fixedly mounted on the fixed mount of each tire center shaft, when the tire center shaft descends, this contact switch is promptly closed, warning circuit sends alerting signal to the driver, makes fault be able to timely eliminating.

The armature contact of contact switch can be fixed together with a push rod, one end of push rod is hinged on the Switch main body, there is a spring to be connected between armature contact and the binding post, makes armature contact be in normally open, fall under the axletree under the other end of push rod, when wheel has fault to occur, axletree descends, and makes the lower end and the road surface contact friction of push rod, moves behind the push rod, armature contact is contacted with fixed contact, connect warning circuit.

During use, can fix this contact switch on the pedestal of each wheel tire is played the supervision effect, each contact switch can be associated on the warning circuit, and promptly arbitrary tire axle takes place when sagging, and alerting signal is all reported to the police.Also can establish a plurality of alerting signals, make alerting signal of the corresponding serial connection of contact switch, and then with general supply and connect, so that driver's positioning monitoring failure judgement position.

This motor tire annunciator is simple in structure, easy for installation, can be in time at accident generation forward direction alarm driver.

Below in conjunction with the embodiment accompanying drawing this application is described in further detail.

Fig. 1 is warning circuit figure.

Fig. 2 is the contact switch structural representation.

Fig. 3 is another embodiment warning circuit figure.

As shown in Figure 1, warning circuit figure E is a direct supply, and R is an alerting signal, can be formed by indicator lamp and buzzer phone serial connection, also can have only a kind of alerting signal, and K is a contact switch, and when K was closed, this warning circuit was a C/LOOP, outwards sends alerting signal.

Fig. 2 is the contact switch structural representation, Switch main body 1 is that a shell-like structure plays fixedly dustproof effect, be fixed with binding post 5 on the sidewall in the body, 6 and fixed contact 4, movable contact 2 is fixed on the guide rod 3, one end 7 of guide rod 3 is hinged on this body support frame, it is sagging between vehicle and road surface that the other end stretches out body 1, be connected by spring 8 between conductor on the guide rod and another binding post 6, make guide rod and movable contact be in normally open all the time, fixed mount 9 is arranged on the body 1, this contact switch can be fixed near the fixed mount of the center shaft of wheel, and power supply and alerting signal can be installed in the operator's compartment, during running car, if tire becomes flat, during accident signs such as wobbling of wheels, axletree all can sink, at this moment, contact switch also descends thereupon and makes guide rod 3 and road surface contact friction, because automobile to overtake, friction force moves after making guide rod, and movable contact 2 contacts with fixed contact 4, the warning circuit closure is sent chimes of doom.Behind the trouble removal, axis resets, and the guide rod of contact switch loses resistance, disconnects with fixed contact 4 under the effect of spring 8.

Fig. 3 is another embodiment circuit diagram, there are four contact switch K1, K2, K3, K4 respectively to be connected in series signal lamp R1, a R2, R3, R4 respectively among the figure, be connected to again on the power supply E, during installation, can near each wheel, adorn a contact switch, and corresponding in operator's compartment signal indication arranged respectively, be convenient to like this that the driver finds out the fault scene so that get rid of.

Claims

1, a kind of motor tire annunciator, contain the warning circuit of forming by direct supply, alerting signal, contact switch, it is characterized in that described contact switch by body be fixed on the fixed contact on the body and often open the elasticity armature contact and form, this contact switch is fixedly mounted on the fixed mount of axletree.

2, motor tire annunciator as claimed in claim 1, the armature contact and the push rod that it is characterized in that described contact switch connect as one, one end of push rod is hinged on the Switch main body, fall under the other end of push rod under the axletree between the armature contact and binding post to spring is connected, make armature contact be in normally open.

3, motor tire annunciator as claimed in claim 1 or 2 is characterized in that described contact switch can be a plurality of contact switches and be connected on the warning circuit.