CN2903610Y

CN2903610Y - Self sealed type tyre air valve

Info

Publication number: CN2903610Y
Application number: CN 200620109412
Authority: CN
Inventors: 曾贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-23
Filing date: 2006-05-23
Publication date: 2007-05-23
Anticipated expiration: 2016-05-23

Abstract

The utility model comprises a valve body, a bonnet, a spool and a dust-proof cap, the valve body is capable of being screwed onto the valve cock of the prior arts, the bonnet is capable of being connected with the valve body via screws, the lower portion of the bonnet reaches into the upper cavity of the valve body, and the dust-proof cap is capable of being screwed on the upper portion of the bonnet. The spool is provided in the upper cavity of the valve body and is capable of moving up-and-down in the cavity, a sheet gasket is provided on the central layer of the spool, a thimble is provided in the center of the sheet gasket, and a groove is arranged on the other side of the central layer. When gas charging tires, gas goes through the channel and the groove on the center layer and gets into the cavity, and when finishing gas charging and the gas charging pipe is taken off, the gas pressure in the tire pushes the spool, the sheet gasket on the center layer of the spool is tightly pressed on the lower portion of the bonnet, which will block the gas channel. Screwing the valve body or pressing the thimble will easily degas the tires. Compare with the prior arts, the utility model has the advantages of convenient manufacturing, swift and easy operation process of gas charging, good sealing effect for tires, uneasy to break down, capable of being utilized in current tires, and it is especially convenient and practical when utilizing in oversize vehicle.

Description

Self-enclosed type tire filling gas mouth

Technical field

The utility model relates to the valve that a kind of tyre inflation uses, and relates in particular to the self-enclosed one-way valve type valve of a kind of energy.

Background technique

Existing tyre inflation is after tire charges gas, removes gas-adding pipe, and valve inside is installed on valve, and the gas in the tire is not leaked.The shortcoming of this inflation mode be add behind the gas bigger because of the pressure in the tire, the installation valve inside is pretty troublesome, inconvenient, in the process that valve inside is installed, can cause the portion gas in the tire to leak, particularly to large vehicle, as the twins wheel, inconvenient especially, need to use supplementary equipment or unload tire and better inflate.In order to solve the shortcoming of existing inflation mode, people propose many improved technological schemes, have proposed some improved technological schemes as Chinese patent application 97223923 " inner tube of a tyre gas-flow closure valve ", Chinese patent application 92209414 " tire valve is chewed " etc.These schemes replace valve inside with one-way valve, and sealability makes moderate progress, and these schemes guarantee sealing because of using length of spring compressed, make the product structure more complicated, make difficulty, the charge operation trouble.Chinese patent CN200520006015.5 " a kind of tire valve " charge operation is simple, convenient and swift, but is difficult for the meter wheel air pressure, and its deficiency is arranged.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of easily manufactured, and charge operation is simple, the tire valve that sealability is good.When tyre inflation, convenient and swift, as long as take away gas tube after charging gas, again dust cap has been screwed on just.

In order to solve the problems of the technologies described above, the technical solution of the utility model is on the gas channel of prior art valve, generally is to install one at the front end of existing valve can only unidirectionally open the spool of realizing unidirectional ventilation.When its working principle is that tire needs aerating, connect gas tube, the pressure of source of the gas is greater than the pressure in the tire, and spool is opened, and the gas of source of the gas enters in the tire by the gas channel of valve.After adding gas, as long as take away gas-adding pipe, the pressure of aerating source of the gas disappears, the pressure pushing spool in the tire, and closed gas channel is closed valve immediately.Gas in the tire can not leak, and charge operation is very convenient.

The utility model comprises valve body, valve gap, spool, dust cap, upper and lower cavity is arranged in the valve body, there is through hole to link to each other, all there is internal thread in upper and lower chamber, and the cavity of resorption internal thread can cooperate with the valve nozzle outside thread of prior art, and the valve body upper outside can have anti-skidding knurling, valve body can directly be turned round on the valve nozzle that prior art is used, and by rubber cushion sealing, valve body lower portion also has aperture, back-outs valve body and can be used for making and bleed a tire; Valve gap is tubular, in through hole is arranged, there is bulge loop in the valve gap outside, and valve gap is divided into two ones up and down, and upper and lower two ones all have outside thread, lower external thread and valve body epicoele screw-internal thread fit, valve gap can be rotatably connected on the valve body and the seal rubber pad sealing is arranged, and the lower end of valve gap is stretched in the valve body epicoele, and its end can be Taper Pipe shape, valve gap upper external thread and dust cap internal thread match, the dust cap of can screwing on; Spool places in the valve body epicoele, turns round bonnet then and with seal rubber pad sealing, spool can be up and down in the chamber, above the spool central layer gasket seal arranged, and there is a thimble in central authorities, and thimble is in the through hole of valve gap, and the another side of central layer has groove.During tyre inflation, turn on dust cap, by last gas tube, gas enters in the chamber through the groove of passage and central layer, after adding gas, as long as take away gas-adding pipe, the pressure of aerating source of the gas disappears, air pressure pushing spool in the tire, gasket seal on the spool central layer and valve gap lower end compress, closed gas channel.The mode of the utility model measurement air pressure is same as the prior art.Bleed off gas in the tire as need, only need turn valve body, thimble be discharged or be pushed to gas can from the valve body aperture in the tire, and the gas in the tire will drainage.

The utility model compared with prior art, simplicity of design, easily manufactured, not fragile, maintenance easily, the charge operation process is fast light, tire seal is functional, can use on existing tire, especially to the more convenient practicality of large vehicle.

The utility model can be widely used in the tyre inflation field of industries such as automobile, power car, motorcycle, bicycle.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is further specified.

Fig. 1 is the utility model valve body structure schematic representation

Fig. 2 is the utility model valve cover structure schematic representation

Fig. 3 is the utility model example one valve core structure schematic representation

Fig. 4 is the utility model example two valve core structure schematic representation

Fig. 5 is the utility model example three valve core structure schematic representation

Fig. 6 is one of the utility model spool structural representation worm's eye view

Fig. 7 is two structural representation worm's eye views of the utility model spool

Fig. 8 is three structural representation worm's eye views of the utility model spool

Fig. 9 is the utility model embodiment one assembling schematic representation (inflated condition)

Figure 10 is the utility model embodiment two assembling schematic representation (inflated condition)

Figure 11 is the utility model embodiment three assembling schematic representation (inflated condition)

Among each figure: 1 is that valve body, 2 is dust cap for seal rubber pad, 17 for seal rubber pad, 16 for the valve of prior art, 15 for spool, 14 for duct, 13 for spool, 12 for groove, 11 for seal rubber pad, 10 for thimble, 9 for spool, 8 for through hole, 7 for bulge loop, 6 for valve gap, 5 for aperture, 4 for through hole, 3.

Embodiment

Fig. 1 is valve body 1 structural representation, and upper and lower chamber is arranged in the valve body 1, has through hole 2 to be connected, and all there is internal thread in upper and lower chamber, and valve body 1 upper outside has anti-skidding knurling, and valve body 1 bottom has aperture 3.

Fig. 2 is valve gap 4 structural representations, and through hole 6 is arranged in the valve gap 4, and there is bulge loop 5 in the outside, and bulge loop 5 is divided into two ones up and down with valve gap 4, and two ones all have outside thread up and down, and valve gap 4 underparts are Taper Pipe shape.Fig. 3 is the utility model embodiment one spool 7 structural representations, and gasket seal 9 is arranged above the central layer, and there is thimble 8 in central authorities, groove 10 is arranged below the central layer.Fig. 4 is the utility model embodiment two spools 11 structural representations, and the central layer periphery is a tubular, on the tube some ducts 12 is arranged, at the bottom of gasket seal 9 places tin.Fig. 5 is the utility model embodiment three spools 13 structural representations, is dish above the central layer, and gasket seal 9 places at the bottom of the dish.Fig. 6 is one of spool structural representation worm's eye view, in order to increase the venting channels area, make gas replenishment process faster, as improvement of the present utility model, the central layer periphery can be established the bar shaped air drain newly, also can be designed to the triangle of angle camber with central layer as shown in Figure 7, or as shown in Figure 8, be designed to the quadrilateral of angle camber.Fig. 9 has provided the utility model embodiment one, abandon the valve inside of prior art, seal rubber pad 15 is enclosed within outside the valve body 1 cavity of resorption inner via hole 2, with valve body 1 turn-knob on the valve 14 of prior art, compress seal rubber pad 15, spool 7 is put into the epicoele of valve body 1, again valve gap 4 is rotatably connected on the valve body 1, and by seal rubber pad 16 sealings, the dust cap 17 of screwing on again at last; During the utility model inflation, turn round dust cap 17 earlier, connect the source of the gas gas tube, the source of the gas atmospheric pressure is opened gas channel, and gas via through holes 6, valve body 1 epicoele and groove 10, through hole 2 enter tire, and inflation finishes, as long as take away gas tube, the aerating bleed pressure disappears, and tire internal air pressure pushing spool 7 makes valve gap 4 lower ends compress seal rubber pad 9, and it is self-enclosed that realization is chewed in the utility model aerating.Can push thimble 8 when needing venting or twist and move back valve body 1, the aperture 3 of valve body 1 be communicated, with atmosphere by the aperture exhaust.

Figure 10 has provided the utility model embodiment two, uses spool 11.

Figure 11 has provided the utility model embodiment three, uses spool 13.

Claims

1, a kind of self-enclosed type tire filling gas mouth comprises valve body, valve gap, spool, dust cap, and its special card is in the described valve body (1) upper and lower cavity is arranged, and has through hole to link to each other, and all there is internal thread in upper and lower chamber; Described valve gap (4) is tubular, in through hole (6) is arranged, there is bulge loop (5) in valve gap (4) outside, valve gap (4) is divided into two ones up and down, upper and lower two ones all have outside thread, valve gap (4) is rotatably connected on the valve body (1) and seal rubber pad (16) sealing is arranged, the lower end of valve gap (4) is stretched in valve body (1) epicoele, valve gap (4) upper external thread and dust cap (17) internal thread match, the dust cap (17) of can screwing on, gasket seal (9) is arranged above the central layer of described spool (7), and there is a thimble (8) in central authorities, and the another side of central layer has groove (10).

2, according to the described a kind of self-enclosed type tire filling gas mouth of claim 1, its special card is described valve body (1), and the bottom has aperture (3).

3, according to the described a kind of self-enclosed type tire filling gas mouth of claim 1, its special card is that the underpart of described valve gap (4) is a Taper Pipe shape.

4, according to the described a kind of self-enclosed type tire filling gas mouth of claim 1, its special card is that described spool is spool (11), and central layer periphery is a tubular, on tin some ducts (12) is arranged, at the bottom of gasket seal (9) places tin.

5, according to the described a kind of self-enclosed type tire filling gas mouth of claim 1, its special card is that described spool is spool (13), is dish above the central layer, and gasket seal (9) places at the bottom of the dish.