A kind of charging valve for multiple cord tie
Technical field
The utility model belongs to valve field, and in particular, to a kind of charging valve for multiple cord tie.
Background technology
Existing tire is typically provided charging valve, and the function of charging valve is and to maintain tyre inflating to tyre inflating
Sealing afterwards.Charging valve generally comprises Valve tip body and valve inside, and internal thread segment is machined in the inner cavity of the Valve tip body
For the valve inside that is screwed on.Valve tip body further includes valve cock bar and valve cock, and outer wall is equipped with externally threaded valve cock in opening
Shape is inflated for outside into tire.The one end of valve cock bar far from valve cock is connect with tire.
In order to avoid losing heart since tire is pricked and leading to vehicle disequilibrium, and then causes traffic accident, announce at present
A kind of burst-proof prick-proof tyre, this tire include multiple airflow layers, and each airflow layer is independent air bag, in order to ensure
One airflow layer occurs to lose heart, and the gas of other layers will not lose heart with layer is punctured and be lost heart, and need one of layer being set as
Middle layer is inflated, check valve is equipped between middle layer and other layers, other layers are unidirectionally inflated by middle layer.Pass through gas first
Valve is inflated to middle layer, and as middle layer air pressure increases, the gas of middle layer is discharged to other layers by check valve, final other
Layer and middle layer air pressure balance, therefore middle layer is also referred to as air pressure balance layer.
Due to being check valve between middle layer and other layers, need to deflate when tire needs are dismantled from wheel hub, charge valve
It is connected with middle layer, the gas of middle layer can only be bled off using existing valve, and other layers of gas can not discharge.Such as taking turns
Deflation valve is arranged in the other positions of tire, then can not be matched with existing wheel hub.Accordingly, it is desirable to provide it is a kind of can meet it is this more
Layer tire fills discouraged integral valve.
Invention content
The utility model for the defects in the prior art, provides a kind of simple in structure, is suitable for multiple cord tie, can be with
The charging valve of adjustment tire various pieces air pressure as needed.
The purpose of this utility model is achieved through the following technical solutions:A kind of charge valve for multiple cord tie is provided
Door, including valve cock are equipped with exterior air drain for wherein one layer of inflation/deflation to tire outside the valve cock;The exterior air drain
It is connected to another layer of tire;The exterior air drain is equipped with isolating device and is in communication with the outside for separating gas in another layer, opens
Isolating device can release gas in another layer.
Preferably, it is equipped with concentric outer layer sleeve outside the valve cock, between the outer layer sleeve and valve cock outer wall
Channel constitute exterior air drain.
Preferably, the outer layer sleeve is equipped with multiple gas vents.
Preferably, the isolating device include be isolated valve and with it is described be isolated valve connect elastic mechanism.
Preferably, the elastic mechanism is spring, is set in the outside of the valve cock.
Preferably, the valve cock outer wall is equipped with screw thread.
Preferably, it is equipped with seal washer at the top of the isolation valve.
Preferably, the isolation valve is equipped with the thimble for deflation, and pressing thimble makes another layer be in communication with the outside gas
Body is released.
The utility model additionally provides a kind of multiple cord tie equipped with above-mentioned charging valve simultaneously.
Preferably, the tire is equipped with the device for monitoring tyre pressure being connect with valve cock.
Compared with prior art, the utility model has following advantageous effect:
1, simple in structure, on the basis of not changing inflating valve structure, it is additionally arranged exterior air drain, can be realized multiple to tire
The air pressure of layer is adjusted.
2, when needing range of regulation small, the gas of tire layer that can be by valve cock to being inflated with valve cock is arranged
It puts;When needing range of regulation big, other tire layer gases can be discharged by exterior air drain, valve cock can also be passed through
The gas of multiple tire layers is discharged simultaneously with exterior air drain.The range for adjusting tire pressure is expanded, increases and adjusts tire pressure
Flexibility improves the efficiency for reducing tire pressure.
Description of the drawings
Structural schematic diagrams of the Fig. 1 for the charging valve of multiple cord tie.
Wherein, 1- valve cocks, 2- exterior air drains, wherein one layer of 3-, another layers of 4-, 5- isolating devices, 6- elastic mechanisms, 7-
Valve, 10- seal washers, 11- thimbles is isolated in outer layer sleeve, 8- gas vents, 9-.
Specific implementation mode
The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing
Illustrate, expression is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent;In order to which this reality is better described
With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product;To ability
For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.
Embodiment
As shown in Figure 1, the present embodiment provides a kind of charging valve for multiple cord tie, including valve cock, for wheel
Wherein one layer of inflation/deflation of tire, the valve cock outside are equipped with exterior air drain;Another layer of the exterior air drain and tire is connected to;It is described
Exterior air drain is equipped with isolating device and is in communication with the outside for separating gas in another layer, opens isolating device, can release another layer
Interior gas.
Wherein, valve cock 1 generally comprises Valve tip body and valve inside;Valve inside is located at the inside of Valve tip body, main to use
In the air inlet for realizing tire and prevent the gas leakage of tire;1 outer wall of valve cock is equipped with screw thread, can be used for connecting air charging system,
Can be used for that dust cap is installed.Valve cock 1 can also directly use existing American valve cock or French inflating valve structure.
1 outside of valve cock is equipped with concentric outer layer sleeve 7, and the channel between 1 outer wall of outer layer sleeve 7 and valve cock constitutes outer
Air flue 2.The gas outlet that exterior air drain 2 can be made to be in communication with the outside is equipped in the connecting portion of outer layer sleeve 7 and valve cock 1.Outside
Be equipped with isolating device 5 between layer casing 7 and valve cock 1, isolating device 5 include be set in spring outside valve cock 1 and with bullet
The isolation valve 9 of spring connection, isolation valve 9 are used to block the gas outlet of outer layer sleeve 7 and the connecting portion of valve cock 1, in turn
Control another layer 4 and extraneous connection.Outer layer sleeve 7 compresses the position of connection equipped with seal washer 10, enhancing with valve 9 is isolated
The air-tightness of valve is isolated, isolation valve is equipped with the thimble for stretching out gas outlet, when needing to discharge gas in another layer, by bearing down on one
Needle makes isolation valve be detached with seal washer, to make another layer 4 be in communication with the outside.
Air charging system is fixedly connected by screw thread with valve cock 1, while valve inside being lifted off to original position, is allowed gas to
The part enough detached with Valve tip body by valve inside enters wherein one layer of tire.Wait for that inflation is completed, after taking air charging system away,
Valve inside due in tire the collective effect of pressure and elastic device return to original position, wherein one layer of isolation tire and the external world
Connection.It, can be by external device (ED) by gas when needing to deflate to tire when device for monitoring tyre pressure finds that intrauterine pressure is excessively high
Men Xin is lifted off original position again, makes wherein one layer to be in communication with the outside, and since air pressure is higher than ambient pressure in the layer, can complete to let out
Gas operates.When needing another layer to tire to carry out being depressured discouraged, 11 1 connected, thimble of isolation valve 9 is given in outside
Isolation valve is lifted off original position, so that exterior air drain 2 is in communication with the outside by gas outlet, since outer layer sleeve 7 is set by active force
There is gas vent 8, another layer of gas can enter outer layer sleeve 7 by gas vent 8, and then be discharged to the external world by gas outlet.When
Completion loses heart to another layer, removes the active force for being applied to thimble 11, makes the pressure in spring and outer tunnel 2 of isolation valve 9
Under the action of, it is compressed again with the seal washer of outer layer sleeve 7 10, blocks gas outlet, isolation outer tunnel 2 and extraneous connection.
It, can be discouraged when needing according to the suitably discouraged mode of pressure selection in tire for the charging valve of multiple cord tie
When the air pressure of door 1 airflow layer of mouth, valve cock pressure release can be used;When needing to let out the air pressure of another layer of tire, can use outer
2 pressure release of air flue;When needing adjusting air pressure range small, 2 pressure release of valve cock 1 or exterior air drain can be used alone;When needing to adjust
When the range of solar term pressure is big, valve cock 1 and the pressure release simultaneously of exterior air drain 2 can be used.The flexibility of pressure release mode is increased, is improved
The efficiency of pressure release.
The same or similar label correspond to the same or similar components;Position relationship described in attached drawing is used to be only used for showing
Example property explanation, should not be understood as the limitation to this patent.Obviously, above-described embodiment of the utility model is only clearly to say
Bright the utility model example, and it is not the restriction to the embodiment of the utility model.For the general of fields
For logical technical staff, other different forms of changes or modifications may be made based on the above description.Here it is not necessarily to
Also all embodiments can not be exhaustive.It is made within the spirit and principle of the present invention it is any modification,
Equivalent replacement and improvement etc., should be included within the utility model scope of the claims.