CN2166033Y - Double-chamble automatic tyre-inflating device - Google Patents

Abstract

The utility model provides a double-chamber automatic tyre-inflating device for inflating tyres. The device is mainly characterized in that an air suction mechanism, an inflation mechanism, a pressure regulating device and an installation mechanism are provided. The cam wheel of the air suction mechanism is arranged on a wheel shaft which can drive the cam wheel to rotate during the rotation of a wheel; a piston is driven by the cam wheel; the air which is generated by the movement of the piston can inflate the tyre automatically and continuously through the inflation mechanism; the air pressure in the tyre can be regulated automatically by the pressure regulating device. Compared with the prior inflation device, the utility model has visible advantages of convenient use, automatic and continuous inflation, automatic pressure regulation, etc.

Description

Double-chamble automatic tyre-inflating device

The utility model belongs to the general vehicle technical field, is a kind of two chambers self-filler that is used for inflation of tire.

Existing Tire Inflation System, can not be automatic, continuous to inflation of tire, and charge air is to grasp by the people in the tire, can not automatically regulating.

The purpose of this utility model be design a kind of can be automatically, continuously to inflation of tire, but and two chambers self-filler of automatically regulating tire internal gas pressure.

Technical solution adopted in the utility model is improved existing gas filled device, sets up pressure regulating device, installing mechanism.In original suction mechanism, set up piston flat chassis, cam, the external part that the piston flat chassis is contained in piston contacts with cam, piston is provided with the disengaging key, the corresponding keyway of establishing on the end cap of piston barrel, set up plenum chamber, plenum chamber valve, retracing spring in inflation mechanism, plenum chamber communicates with low-pressure chamber, and the plenum chamber valve is housed between the 2 air chambers, retracing spring is contained in the high pressure gas air chamber and links to each other with the plenum chamber valve, and plenum chamber communicates with valve; Pressure regulating device comprises pressure regulating cavity, pressure regulating valve, pressure spring, pressure regulation cap, pressure regulating cavity communicates with plenum chamber, between pressure regulating cavity and the plenum chamber pressure regulating valve is housed, pressure spring is contained in the pressure regulating cavity, one end links to each other with pressure regulating valve, the other end links to each other with the pressure regulation cap, and the pressure regulation cap is contained in the end face of pressure regulating cavity, thereby constitutes a kind of pair of chamber self-filler.

The utility model provides a kind of desirable two chambers self-filler for people.This pair of chamber self-filler is contained on wheel shaft, the spoke, can be automatically to its inflation of tire when wheel.Owing to have two air chambers, inflation can be continuous; Have pressure regulating device, when the tire internal gas pressure was too high, gas can be overflowed by pressure regulating device automatically, has avoided the phenomenon of blowing out.This pair of chamber self-filler compared remarkable advantages such as having easy to use, automatic continuous charge, automatic voltage regulation with existing gas filled device.

Reach the specific structural features that example further specifies the two chambers of the utility model self-filler in conjunction with the accompanying drawings.

Accompanying drawing is represented the structure cross-sectional schematic of the two chambers of the utility model self-filler.

Referring to accompanying drawing, the two chambers of the utility model self-filler is by the I suction mechanism, the II inflation mechanism, and the III pressure regulating device, the IV installing mechanism is formed.The I suction mechanism comprises low-pressure chamber 6, piston 3, piston flat chassis 2, cam 1, end cap 4, retracing spring 7, seal ring 5.The II inflation mechanism comprises plenum chamber 11, plenum chamber valve 15, valve 12, retracing spring 14.The III pressure regulating device comprises pressure regulating cavity 18, ball formula pressure regulating valve 10, pressure spring 9, pressure regulation cap 8.The IV installing mechanism comprises fixed mount 13,16.Wherein, piston 3 in the suction mechanism is contained in the low-pressure chamber 6, between piston 3 and the low-pressure chamber 6 seal ring 5 is housed, one end of piston 3 is equipped with retracing spring 7, the other end passes end cap 4 and links to each other with piston flat chassis 2, piston 3 is provided with and breaks away from key 17, and end cap 4 is provided with keyway, and piston flat chassis 2 contacts with cam 1; Plenum chamber 11 in the inflation mechanism communicates with low-pressure chamber 6, and plenum chamber valve 15 is housed between the 2 air chambers, and retracing spring 14 is contained in the plenum chamber 11 and links to each other with plenum chamber valve 15, and valve 12 communicates with plenum chamber 11; Pressure regulating cavity 18 in the pressure regulating device communicates with plenum chamber 11, ball formula pressure regulating valve 10 is housed between pressure regulating cavity 18 and the plenum chamber 11, and pressure spring 9 is contained in the pressure chamber 18, and an end links to each other with ball formula pressure regulating valve 10, the other end links to each other with pressure regulation cap 8, and pressure regulation cap 8 is contained in the end face of pressure regulating cavity 18.The I suction mechanism is contained on the fixed mount 16, and II inflation mechanism, III pressure regulating device are contained on the fixed mount 13, thereby constitutes a kind of pair of chamber self-filler.

Before the use, cam 1 is contained on the wheel shaft, fixed mount 13,16 is contained on the spoke.During wheel, wheel shaft drives cam 1 and rotates, and by the effect of cam 1, piston flat chassis 2 and retracing spring 7, piston 3 moves back and forth, thereby produces gas in low-pressure chamber 6.Gas enters plenum chamber 11 by plenum chamber valve 15, and then passes through valve 12 to inflation of tire.When gas in the tire is sufficient, manually promote piston flat chassis 2, the disengaging key on the piston 3 17 is screwed in the keyway of end cap 4, itself and cam 1 are broken away from, no longer continue inflation.Because the plenum chamber 11 of inflation mechanism communicates with tyre cavity by valve 12, tire valve, the tire internal gas pressure is identical with the air pressure of plenum chamber 11, therefore, if the tire air inlet cross the foot or because of temperature rising, gas het expansion etc., when causing the interior air pressure of tire to surpass institute's pressure regulation power, gas backs down ball formula pressure regulating valve 10 automatically and overflows automatically by pressure regulating cavity 18 and pressure regulation cap 8.The size of tire internal gas pressure can be regulated by pressure regulation cap 8 and be determined.

Claims (1)

1, a kind of pair of chamber self-filler, have suction mechanism, inflation mechanism, suction mechanism comprises low-pressure chamber, piston, retracing spring, seal ring, end cap, inflation mechanism comprises valve, it is characterized in that also having pressure regulating device, installing mechanism, and set up piston flat chassis, cam in suction mechanism, the external part that the piston flat chassis is contained in piston contacts with cam, piston is provided with the disengaging key, the corresponding keyway that is provided with on the end cap; In inflation mechanism, set up plenum chamber, plenum chamber valve, retracing spring, plenum chamber communicates with low-pressure chamber, the plenum chamber valve is housed between the 2 air chambers, retracing spring is contained in the plenum chamber and links to each other with the plenum chamber valve, plenum chamber communicates with valve, pressure regulating device comprises pressure regulating cavity, pressure regulating valve, pressure spring, pressure regulation cap, pressure regulating cavity communicates with plenum chamber, between pressure regulating cavity and the plenum chamber pressure regulating valve is housed, pressure spring is contained in the pressure regulating cavity, one end links to each other with pressure regulating valve, and the other end links to each other with the pressure regulation cap, and the pressure regulation cap is contained in the end face of pressure regulating cavity.

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