CN201100437Y - A central discharging and charging overflow shuttle valve for car tyre - Google Patents

Abstract

The utility model discloses a central gas charging and discharging overflow shuttle valve for an automobile tire, relating to an automobile charging and discharging valve, comprising a shuttle valve (1), a piston (2), a spring (3), an overflow valve (4), a diaphragm (5), a gasket (6), a spring (7), a nut (8) and a regulating handle (9), wherein inside a cavity of the shuttle valve (1), the right end of the piston (2) is provided with a spring (3) which presses the piston to the left end of the cavity; the shuttle valve (1) and the overflow valve (4) are connected through a screw thread; the overflow valve (4) and the regulating handle (9) are also connected through a screw thread; the diaphragm (5) and the gasket (6) are installed between the overflow valve (4) and the regulating handle (9); and the spring (7) is arranged between the diaphragm (5) and the nut (8). The central gas charging and discharging overflow shuttle valve for an automobile tire has a gas channel with large through diameter, and the speed of charging and discharging gas is rapid; the structure is compact, the volume is small, and the central gas charging and discharging overflow shuttle valve for an automobile tire is convenient for assembling; and the central gas charging and discharging overflow shuttle valve for an automobile tire is provided with the regulating handle and can regulate the speed of charging and discharging gas randomly.

Description

The central inflation-deflation over-flow shuttle valve of a kind of automobile tire

Technical field

The utility model relates to a kind of vehicle charging and discharging valve, relates in particular to a kind of automobile tire central authorities inflation-deflation over-flow shuttle valve of cross-country vehicle tire central air-charging and air-discharging system.

Background technique

The main effect of automobile tire central air-charging and air-discharging system is: when automobile during by soft terrain such as desert, coastal beach, marsh, slob and ice and snow road, can reduce tire pressure apace by this system, increase the contact area of tire, improve the passing ability of automobile.

When the height of transporting cars is limited by bridge opening, culvert, mother aircraft hatch door etc., in certain scope,, the automobile total height is suitably reduced, just can pass through smoothly if reduce tire pressure.

When automobile tire is punctured with quilt that attack is worn,, can make automobile leave the danger zone as early as possible or arrive the destination if can give in the process of moving automobile tyre inflation in real time.

When the higher and automobile long-distance of road environment temperature travels continuously,, may cause tyre break because the tire heating raises the tire internal air pressure; If can give the venting of automobile tire in the process of moving in real time, can avoid the generation of dangerous situation.

Military offroad vehicle is when transporting weaponry, vehicular weapons system, traffic guidance system and the battlefield wounded, slow down impact and vibration if can adjust tire pressure in real time, can strengthen mobility, Security and the vital capacity of military supplies according to different condition of road surface.

In view of the above characteristic of automobile tire central air-charging and air-discharging system,, then will promote the performance of automobile tire central air-charging and air-discharging system well if the speed that tire is charged and discharged gas obviously increases.Present automobile tire central air-charging and air-discharging system is to adopt solenoid valve to control the circulation of air flue mostly, because the restriction of this body structure of solenoid valve, its circulation bore is less when solenoid valve is opened, and it is slower to cause charging and discharging gas speed, when particularly full vehicle tyre charges and discharge simultaneously.

Do not find to adopt automobile tire central authorities inflation-deflation over-flow shuttle valve in the present automobile tire central air-charging and air-discharging system as yet.

Summary of the invention

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect that prior art exists, and a kind of automobile tire central authorities inflation-deflation over-flow shuttle valve of cross-country vehicle tire central air-charging and air-discharging system is provided.

The purpose of this utility model is achieved in that

Design a kind of Pneumatic valve and replace the control of solenoid valve to the central air-charging and air-discharging system air flue, solenoid valve only helps out in central air-charging and air-discharging system.

As Fig. 1, the utility model comprises shuttle valve (1), piston (2), spring (3), relief valve (4), diaphragm (5), packing ring (6), spring (7), nut (8), release handle (9).

Working principle of the present utility model is:

The utility model only provides a valve assembly, is matching used with special detection control system.

When not having air-flow to enter in shuttle valve (1) chamber, piston (2) is in left end under the thrust of spring (3), and then the utility model is in off working state; When air-flow entered in shuttle valve (1) chamber from A mouth (a), under the effect of air pressure, spring was compressed, and piston moves to right to right-hand member, and air-flow flows out from B mouth (b), and then automobile tire central authorities inflation-deflation over-flow shuttle valve is in the inflation working state; During venting, do not have air-flow to enter in shuttle valve (1) chamber from A mouth (a), spring (3) resilience promotes piston (2) and moves to left to left end, air-flow enters in shuttle valve (1) chamber and through relief valve from B mouth (b) and discharges, and then automobile tire central authorities inflation-deflation over-flow shuttle valve is in the venting working state.

The utlity model has following advantage and good effect:

1, the air flue latus rectum is big, and it is fast to charge and discharge gas speed;

2, compact structure, volume is little, is convenient to assembling;

3, release handle is housed, can regulates the gas speed that charges and discharge arbitrarily.

Description of drawings

Fig. 1 is automobile tire central authorities inflation-deflation over-flow shuttle valve structural drawing.

Wherein:

The 1-shuttle valve; The 2-piston; 3-first spring;

The 4-relief valve; The 5-diaphragm; The 6-packing ring;

7-second spring; The 8-nut; The 9-release handle;

The a-A mouth; The b-B mouth.

Embodiment

Further specify below in conjunction with drawings and Examples:

Aforementioned, as Fig. 1, the utility model comprises shuttle valve (1), piston (2), spring (3), relief valve (4), diaphragm (5), packing ring (6), spring (7), nut (8), release handle (9);

Its annexation is: in shuttle valve (1) chamber, piston (2) right-hand member has a spring (3) that it is pressed in the chamber left end, shuttle valve (1) and relief valve (4) are by being threaded, relief valve (4) also is by being threaded with release handle (9), diaphragm (5) and packing ring (6) are housed between relief valve (4) and release handle (9), and spring (7) is contained between diaphragm (5) and the nut (8).

Shuttle valve (1) is a cast aluminium structural member, and its function is active chamber to be provided and to connect relief valve (4) for piston (2);

Piston (2) is a rubber revolving part, and its function is to change airflow direction;

Spring (3) is a kind of cylindrical helical compression spring;

Relief valve (4) is a cast aluminium structural member, and its function is venting, for other functors provide assembly space;

Diaphragm (5) is a thin rubber disk that comprises iron plate, is pressed in the size that the decrement of the spring (7) above it can be regulated air-flow by adjusting;

Packing ring (6) is a nylon revolving part, and its function is that protection diaphragm (5) is not worn;

Spring (7) is a kind of cylindrical helical compression spring;

Nut (8) is a female outer-hexagonal structural member, belongs to conventional general part;

Release handle (9) is a plastic structural part that internal and external threads is arranged, and its function is the decrement of Regulation spring (7), belongs to general conventional part.

Claims (1)

1, the central inflation-deflation over-flow shuttle valve of a kind of automobile tire is characterized in that:

Comprise shuttle valve (1), piston (2), spring (3), relief valve (4), diaphragm (5), packing ring (6), spring (7), nut (8), release handle (9);

Its annexation is: in shuttle valve (1) chamber, piston (2) right-hand member has a spring (3) that it is pressed in the chamber left end, shuttle valve (1) and relief valve (4) are by being threaded, relief valve (4) also is by being threaded with release handle (9), diaphragm (5) and packing ring (6) are housed between relief valve (4) and release handle (9), and spring (7) is contained between diaphragm (5) and the nut (8).

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