CN101863204A

CN101863204A - Valve for under pressure warning and overpressure explosion proofing

Info

Publication number: CN101863204A
Application number: CN200910011190A
Authority: CN
Inventors: 陈耕田
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-15
Filing date: 2009-04-15
Publication date: 2010-10-20

Abstract

The invention provides a valve cap for under pressure warning and overpressure explosion proofing. The valve cap not only can prevent flat tires, but also can timely warn for the under pressure tires for the purpose of timely inflation. The valve cap can prevent flat tire accidents by ensuring the tires to be in the best safe state and can reduce wear, prolong the service lives of the tires and save fuel. The valve cap is characterized by comprising an inflation valve, an exhaust valve, an under voltage detector switch, an under voltage information transmitting circuit, a receiving and early warning device and a power supply part.

Description

Valve under pressure warning and overpressure explosion proofing

Technical field: the present invention relates to a kind of dust cap, especially a kind of tire tube valve with tire pressure early warning and explosion prevention function.

Background technology: the tire pressure state has great significance for traffic safety.The too high meeting of tire pressure causes blowing out, thereby causes serious traffic accident, and tire pressure is low excessively, and quick abrasion not only reduces tire service life, also wastes oil plant.For addressing this problem, successively there is tire pressure to detect prior-warning device, correlation technique and product appearance such as tire puncture preventing valve nozzle, tire explosion proof valve core, tire puncture preventing valve nozzle cap.Though received certain effect, but certain defective arranged.Detect prior-warning device as tire pressure, it can only offer chaufeur to tire pressure, can not solve the problem of blowing out automatically, and the cost height, and price is about 3000 yuan.As tire tube valve, valve inside, the dust cap of runflat, though can solve the problem of blowing out, for under-voltage powerless.

Summary of the invention: in order to address the above problem, the invention provides and a kind ofly can detect early warning under-voltage, can prevent the tire tube valve of blowing out again, not only eliminated the hidden danger of blowing out and to have found in time that the tire pressure deficiency carries out tonifying Qi, guaranteeing that tire can move under the best safety state, and heighten tire pressure as much as possible, so that reduce wear, increase the service life, and fuel-economizing.Its beneficial effect is, with minimum cost, the simplest structure, and effective method.Not only thoroughly solved the problem of blowing out, can also find in time that the tire pressure deficiency carries out tonifying Qi, made tire be in best safe condition all the time.Promptly guarantee traffic safety, can prolong tire service life again, can also fuel-economizing.In order to realize above-mentioned functions, the technology path that the present invention taked is: charge valve is housed in the dust cap shell, and superpressure blow off valve, under-voltage detector switch, under-voltage information encoding transmitting circuit is provided with under-voltage message pick-up prior-warning device in operator's compartment.In case superpressure is decompression automatically just, in case under-voltage warning immediately.Further specify below in conjunction with accompanying drawing.

Accompanying drawing 1 is the constructional drawing of tire pressure valve for early warning and explosion proofing

Accompanying drawing 2 is under-voltage message pick-up early warning electrical schematic diagrams

Structure described in the accompanying drawing 1 is characterised in that: by dust cap shell 1, and air inlet spring 2, intake valve piece 3, air bleeding valve back-up ring, sealing ring 4, core bar 5, exhaust spring 6, nut 7, dust cap 8, pore 11, conductive contact blade 9,10,14,15, encoding transmitting circuit 12, power supply 13, switch spring 16, under-voltage sense switch 17, elastic sealing strip 18 forms.

Components and parts described in the accompanying drawing 2 and architectural feature are: by decoding circuit IC1, and display circuit IC2, sound circuit device BL, K switch, S, indicator lamp D, power supply E forms.

Embodiment 1: the dust cap shell described in Fig. 1 is one section pipe, there is the two-stage platform that contracts the inboard, the following platform that contracts supports inlet valve spring 2, top contract platform and blow off valve back-up ring and seal ring 4 constitute blows off valve, and support exhaust spring 6, it above the spring adjustment nut 8, core bar 5 is connected with air inlet valve piece 3, the centre of valve piece 3 is springs 16, it below the spring I shape movable contact flat, be under-voltage detector switch 17 below, the outside of switch is an elastic sealing strip 18, the two poles of the earth of switch respectively with the conductive contact blade 9 that is fixed on tire tube valve shell upper edge, 15 connect, the spanner platform is arranged above the adjustment nut 7, and be connected with shell 1 by screw thread, the turnover amount of adjustment nut can change blow off valve pressure.

Embodiment 2, pore 11 is arranged on the dust cap 8 and be connected with shell 1, power supply 13 is arranged, encoding transmitting circuit 12 in the cap body by screw thread, conductive contact blade 10,14 is connected with the triggering pin of power supply 13 and encoding transmitting circuit 12 respectively, and the contact when tightening the cap body in the cap contacts with the switch contact.Cause short circuit in order to prevent that rainwater from infiltrating from pore, except effective contact of contact, so all need insulate in the electrical appliance part and the external world.

Embodiment 3, the implementation method of under-voltage message pick-up early warning part, ICI is the decoding circuit that matches with encode circuit, it both can be special-purpose decoding circuit, it also can be micro controller system, no matter be any, the way of its decoding output will satisfy the needs of every chassis tire quantity, is that tires is reported to the police with differentiation.IC2 is a display circuit, and BL is the sound circuit device, and K is a master cock, and public effective mouth of IC1 is connected with the control end of K.S is zero clearing or reset switch, and the position of installation and connection mode determine that according to selected circuit needs D is a relay indicating light, and E can also be an independent current source, also can be vehicle-borne satisfactory after treatment power supply.

Comprehensive described its using method of embodiment and principle are: during inflation, appendix joint pushing core bar is opened air inlet valve, and gas enters in the tire.Tire pressure is lower than detector switch spring pressure switch conduction when under-voltage, the sealing transmission circuit obtains triggering, just send one group of digital signal that has this tire coding, just export to display circuit after the acceptor circuit decoding effectively, public output pin output signal actuating switch K simultaneously makes the sound circuit device BL warning of sounding.When need removing early warning, click switch S just zero clearing reset.

Claims

1. the invention is characterized in: by dust cap shell 1, charge valve, the superpressure blow off valve, under-voltage detector switch, under-voltage information transmission circuit receives prior-warning device and forms.

2. the dust cap shell 1 described in the letter of authorization 1 is characterised in that: there is the experienced grade of platform that contracts its inboard, and the bottom can be bayonet type, compression type, or clip type, and flexible one-tenth is arbitrarily angled, to adapt to the needs of different kinds of tyre.

3. the charge valve described in the letter of authorization 1 is characterised in that: by core bar 5, air inlet valve piece 3 and blow off valve back-up ring 5 constitute.

4. the superpressure blow off valve described in claims 1 is characterised in that: by spring 6, and blow off valve back-up ring and seal ring 4 and the shell platform structure that contracts.

5. the under-voltage detector switch described in the letter of authorization 1 is characterised in that: by the spring in the through hole that is contained in valve piece 3 16, and switch 17, elastic sealing strip 18, and by lead bonded assembly conductive contact blade 9,15 compositions.

6. the under-voltage information transmission circuit described in the letter of authorization 1 is characterised in that: by dust cap 8, pore 11 is located at the encoding transmitting circuit 12 in the cap,, power supply 13, contact 10,14 is formed, the triggering pin of contact 10 and encoding transmitting circuit is connected, and 14 are connected with power supply 13.Dust cap 8 is connected with shell 1 by screw thread.When tightening the dust cap cap, the contact that touches sheet and dust cap shell upper edge in the cap is combined closely.

7. the reception prior-warning device described in the letter of authorization 1 is characterised in that: by decoding circuit IC1, display circuit IC2, sound circuit device BL, K switch, S, indicator lamp D, power supply E forms, and IC1 is the decoding circuit that is complementary with encode circuit, also can be micro controller system, but decoding output will be satisfied the needs of every chassis tire number, display circuit IC2 can be a read-out, also can be charactron, is which tire is reported to the police with differentiation.Switch S is manual zero clearing reset switch, and its position determines that according to selected circuit requirement D is a working station indicator, and power supply E can be a battery, also can be vehicle-borne satisfactory after treatment power supply.