CN2064317U

CN2064317U - Automatic tyre inflating device in tyre

Info

Publication number: CN2064317U
Application number: CN 89211618
Authority: CN
Inventors: 唐伯石
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-09-11
Filing date: 1989-09-11
Publication date: 1990-10-24

Abstract

The utility model provides an automatic tyre inflating device in a tyre, which can automatically replenish air to the tyre for rubber-tyred vehicles such as automobiles, bicycles, motorcycles, etc. in running. The automatic inflating device is installed in an original air valve of the tyre. The upper part of the automatic tyre inflating device is composed of a bottleneck-shaped pump cap body, a sucking and inflating one-way valves assembly, an installing section, etc., and the lower part of the automatic tyre inflating device is provided with a serpentine tube bag inflating cavity. The utility model does not need any additional dynamic force, and the utility model can achieve the purposes of decreasing running resistance, saving dynamic force and prolonging the service life of the tyre because the utility model can automatically replenish air to the tyre at any time in running. The utility model can avoid the trouble of inflating.

Description

Automatic tyre inflating device in tyre

When relating to a kind of tire deflation, the utility model can inflate technology automatically.The utility model mainly by: snifter glue assists extrusome, pump cap body, air inlet valve, blow off valve etc. to form.

Existing be various inflating tyres of vehicles technique device nothing more than: one for people's strength tube; Two is the mechanical power Air compressor.Its weak point is: the inflation of, must stopping; Two, must or instrument going along with (as Floor Pump) be arranged to the inflation point; Three, must connect the tire tube valve inflation by manpower; Can not inflate automatically at any time during four-wheel tire deficency, often run flat and shorten tire service life and increase resistance to motion.Though in the prize-winning achievement of in 1982 the youth of the nation gizmo contest, a kind of " bicycle snifter " arranged, but from data, learn: still have complex structure, the requirement on machining accuracy height, wearing and tearing easily, inconvenience (need be loaded in the middle of the steel wire of axletree and steel ring) is installed and only is applicable to bicycle, then powerless for other inflating tyres of vehicles.

The purpose of this utility model is to avoid above-mentioned deficiency of the prior art, and a kind of any adding or additional power that do not need is provided, can be automatically at any time for stopping inflation again automatically after the additional deficency abundance of tire in vehicle '.It not only is applicable to bicycle, and can be widely used on all rubber-tyred vehicles such as automobile, motor bike, trac..

The purpose of this utility model can reach by following technical measures:

Snifter assists formula compressive charge cavity two large divisions to form by the bottleneck pump cap body of the first half and the glue of lower part, it is characterized in that:

1, the snifter first half is made the pump cap body of bottleneck; In the thin neck on pump cap body top, install breather check valve; Check valve is assembled successively from inside to outside by spring, valve pearl, valve seat, bonnet respectively; Be provided with two relative inflation apertures at the recessed neck place of pump cap body middle and lower part, air-filled pore seals from outside resilient sleeve with the flexible glue circle, forms the inflation check valve; Other material of pump cap body and function metal and respective strengths is made.

2, the snifter lower part is made glue and is assisted formula compressive charge chamber; The upper open end in compressive charge chamber is tightly connected firmly with interior ladder nut or concavo-convex crimping method and pump cap body lower end, and its lower end is a dead front type; The compressive charge cavity is with the rubber combined circular cross section of making of cord, and the snakelike tubulose of " it " font facade adds fixed with bead coil in the composite bed of the bending place of " it " font.

3, snifter is to the assembly features of wheel: the thin neck of its top pump cap body is similar with the fit of wheel to the tire tube valve of bicycle with the fit of wheel: its underpart glue assists the lower bottom part of compressive charge cavity must glued joint firmly (can wholely make better during new system) with the inner bottom part of the inner tube of a tyre.

The drawing of accompanying drawing is described as follows:

Fig. 1 is the rigging position scheme drawing of snifter in tire.

Fig. 2 is the snifter structure principle chart.(attached numbering namelist)

The utility model is done further narration below in conjunction with the accompanying drawing illustrated embodiment.

With Fig. 1, Fig. 2 operating principle is described: when its tire internal gas pressure is not enough in the vehicle ', cover tire (1) must descend flat, deficency is many more flat many more down, the flat inner tube of a tyre (2) the promotion snifter bottom glue of oppressing again assists flexible cavity (10) upwards to do the pressure gas motion under the cover tire, this moment is because the effect of spring (13) has made air inlet valve pearl (15) in the closed position, when the volume of snifter inner chamber (18) diminishes air pressure when raising greater than the air pressure in the tire, pressurized air enters in the tire air-filled pore (7) jack-up flexible glue circle (12); So far, snifter is finished once gas filed action in its tire.When snifter along with tyre revolution overhead the top certain angle after, originally recovery is heaved at flat tire position down, thereby also drive the elongation of snifter lower body, the volume of inner chamber (18) enlarges air pressure rapidly and descends, when its air pressure is lower than barometric pressure, the elastic force that atmosphere overcomes spring (13) backs down valve pearl (15) and enters inner chamber-(18), when barometric pressure equates substantially with inner chamber air pressure, and valve pearl (15) SELF CL.When ground is pressed to once more in the tire position that snifter is housed, begun aforesaid automatic inflation action again.So go round and begin again, wheel whenever turns around inflation automatically once, when the tire sufficient gas, tire can not descend flat or only flat slightly down naturally, because of slight amount of compression can not play aeration to snifter, so inflation promptly stops automatically, when the tire internal gas pressure dropped to a certain degree again, snifter just began to its inflation of tire again.So move in circles and to reach the permanent not purpose of deficency of vehicle tyre that keeps automatically.

Just in case snifter lost efficacy, still can be with having the inflation in (17) past tire of inflation technique device now from the hole.

Found out by above-mentioned cleverly structure and action principle, with existing tyre inflating technique device ratio , the utlity model has simple in structurely, install ingeniously, use extensively, make the distinguishing features such as easy. It is consumption of power but also can reduce the Vehicle Driving Cycle resistance and save power not only, prolongs the service life of tire, and the trouble that can exempt inflation inconvenience for driver and cyclist is convenient and laborsaving, is the revolution of inflating tyres of vehicles technology.

The snifter numbering namelist (see photo) that the tire of packing into is interior

Numbering	Title	Numbering	Title
					1	Car wheel covering	2	Inner tube
3	Steel ring	4	The automatic inflating body
				5	The air inlet valve body	6	Installation gong mother
7	Air-filled pore	8	Pump cap body
				9	Reinforce the setting wire loop	10	Cord ply compound is assisted gas-filled cavity
11	The attaching nut	12	The flexible glue circle
				13	Spring	14	Bonnet
15	The intake valve pearl	16	Inlet valve seat
				17	Air inlet	18	The snifter inner chamber

Claims

1, pack into snifter in the tire, it comprises that mount pad, flexible glue circle, intake valve port, valve pearl, spring, inflation aperture, glue assists compositions such as formula compressive charge cavity and each connection nut; It is characterized in that:

1., the snifter first half is made the pump cap body of bottleneck; Installing breather check valve in the thin neck in pump cap body top; Check valve is assembled successively from inside to outside by spring, valve pearl, valve seat, bonnet respectively; Be provided with two relative inflation apertures at the recessed neck place of pump cap body middle and lower part, air-filled pore seals from outside resilient sleeve with the flexible glue circle, forms the inflation check valve; Other material of pump cap body and function metal and respective strengths is made;

2., the snifter lower part is made glue and is assisted formula compressive charge chamber; The upper open end in compressive charge chamber is tightly connected firmly with interior ladder nut or concavo-convex crimping method and pump cap body lower end, its lower end is a dead front type, the compressive charge cavity adds fixed with bead coil with the rubber combined snakelike tubulose of making circular cross section " it " font facade of cord in the composite bed of the bending place of " it " font.

2, the snifter in the tire of packing into according to claim 1, it is characterized in that: fit is identical with the fit of wheel with the tire tube valve of bicycle; Its underpart glue assists the lower bottom part of compressive charge cavity to glued joint firmly with the inner bottom part of the inner tube of a tyre.