CN2125517U

CN2125517U - Automatic inflator for bicycle

Info

Publication number: CN2125517U
Application number: CN 92214542
Authority: CN
Inventors: 张永林
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-04
Filing date: 1992-05-04
Publication date: 1992-12-23

Abstract

The utility model provides an automatic inflator for a bicycle, comprising a base which is installed on the wheel core of the bicycle, an inlet chamber which is connected with the base, a gas storage chamber which is connected with the base, a plunger which is arranged in the inlet chamber and a plunger rod whose one end is matched with the plunger and the other end of the piston rod is installed a gravity pendulum which can swing. The gravity pendulum can drive the plunger rod to have reciprocating motion, both ends of a gas delivery pipe are respectively communicated with the inlet chamber and the gas storage chamber, and both ends of an inflator are respectively communicated with the gas storage chamber and the air valve core of the bicycle. The utility model has simple structure, low cost, safety and convenient use, and the utility model which is laboursaving can inflate the tyre of the bicycle automatically when the bicycle runs, making the tyre keep a sufficient gas pressure state for a long time.

Description

Automatic inflator for bicycle

The utility model relates to a kind of gas filled device, particularly be a kind of bicycle automatic inflator.

To the bicycle inflation, what people adopted mostly is Floor Pump, and this Floor Pump is manipulated very inconvenient, effort, and can not carry.It is very inconvenient particularly to seek the equipment of inflating in the cycling way.

In view of above reason, the purpose of this utility model be for provide a kind of simple in structure, cost is low, use is very convenient, laborsaving, and the bicycle automatic inflator that can carry with car.

The utility model is achieved like this: the utility model comprises the pedestal that can be contained on the bicycle core wheel, respectively with pedestal bonded assembly inlet plenum, gas dome, be located at the piston in the air inlet chamber, the piston rod that one end stretches into inlet plenum and cooperates with piston, the other end of piston rod be equipped with can swing and can drive the reciprocating gravity pendulum of piston rod, the gas piping two ends are connected with inlet plenum and gas dome respectively, air-inflating tube one end is communicated with gas dome and the other end can be contained in (referring to Fig. 1) on the bicycle valve core, during wheel, gravity pendulum work drives the piston rod crank motion and air inlet in inlet plenum, enter gas dome through gas piping and form high pressure gas gradually and inflate to bike tyre, laborsaving, inflation automatically.

Being shaped as of above-mentioned gravity pendulum fan-shaped (referring to Fig. 1), an end broad of automatic swing is to increase the weight in leverage force.

Above-mentioned piston rod and inlet plenum are thread connection (referring to Fig. 3), and be easy to process.

The both ends of the surface of above-mentioned piston are spill, and piston rod is made up of push rod and the screw rod that is threaded with push rod, and the sphere (referring to Fig. 2) that cooperates with the piston concave surface is arranged on the push rod top, and good seal performance has solved the poorly sealed problem that is caused by deviation.

Limit spring (referring to Fig. 1, Fig. 2) is housed on the above-mentioned pedestal, not only can have limited the swing position of gravity pendulum but also can play the effect of damping.

Between above-mentioned gas piping and gas dome check valve is housed, safety valve (referring to Fig. 1) is housed on the gas dome, load onto check valve and can prevent that the gas that enters in the gas dome from getting back to inlet plenum by gas piping again, load onto safety valve, during hypertonia that can be in gas dome, safety valve can be opened automatically, discharges unnecessary gas.

The utility model is simple in structure, cost is low, can make vehicle tyre can keep the sufficient state of air pressure for a long time from the inflation of trend bike tyre in bicycle running, and laborsaving, safety is used very convenient.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Fig. 1: the utility model structural representation

The A of Fig. 2: Fig. 1 is to view

Fig. 3: gravity pendulum, piston rod rigging position graph of a relation

Fig. 1, Fig. 2 have provided enforcement illustration of the present utility model.

Pedestal 1 is made up of the stamping forming upper bracket 2 of steel plate, lower bracket 3, and two screw rods 4 passes the connecting bore on the lower bracket respectively and pedestal 1 can be fixed on the wheel core wheel.Spacing damping spring 5 installs around on pedestal 1.The inlet plenum 6, the gas dome 7 that contain induction opening 29 are welded on the lower bracket respectively.Both ends of the surface are that the piston 8 that the employing polythene material of concave surface is made is contained in the inlet plenum 6, and piston inner hole is equipped with corrosion-resistant steel lining 9, with the intensity that increases piston 8 and reduce endoporus and piston rod in the wearing and tearing of screw rod.Piston rod 10 is made up of push rod 11 that is threaded with inlet plenum and the screw rod 12 that is threaded with push rod 11, and the sphere 13 that cooperates with concave surface on the piston 8 is arranged on the top of push rod 11.Seal gasket 14 is housed on the sphere on the push rod 11 13.Be connected with air inlet chamber cap 15 at inlet plenum 6 outside threads.Push rod 11 stretches out on the other end of inlet plenum 6 fan-shaped gravity pendulum 16 is housed, and tightens up with holding screw 17.On inlet plenum 6, be welded with the valve 18 that communicates with inlet plenum 6, rubber cushion 20 be housed at

gas nozzle cap

19 and 18 of valves.The check valve 21, the adjustable pressure relief valve 22 that communicate with it are housed respectively on gas dome 7.The two ends of gas piping 23 are connected with valve 18, check valve 21 by

adaptor union

24,25 respectively.The two ends of air-inflating tube 26 are connected with valve inside on gas dome 7 and the vehicle tyre by

adaptor union

27,28 respectively.Can on each adaptor union, load onto clip.

During wheel, gravity pendulum is started working, and spacing damping spring stops gravity pendulum when reaching capacity, and gravity pendulum makes piston rod reciprocating when rotating.When piston rod forward during precession, the sphere on the piston rod becomes sealing state with the piston concave surface, makes to form certain pressure in the inlet plenum and make gas wash check valve open by gas piping to enter gas dome; Piston rod retreats, and the sphere on the piston rod leaves the piston concave surface, and pressure is eliminated, and closed check valve goes round and begins again, and gas dome reaches required pressure and enters vehicle tyre by air-inflating tube.When the gas dome hypertonia, safety valve is opened automatically, gets rid of unnecessary gas.

Claims

1, bicycle automatic inflator, it is characterized in that described gas filled device comprises the pedestal that can be contained on the bicycle core wheel, respectively with pedestal bonded assembly inlet plenum, gas dome, be located at the piston in the air inlet chamber, the piston rod that one end stretches into inlet plenum and cooperates with piston, on the other end of piston rod, be equipped with to swing also and can drive the reciprocating gravity pendulum of piston rod, the gas piping two ends are connected with inlet plenum and gas dome respectively, and air-inflating tube one end is communicated with gas dome and the other end can be contained on the bicycle valve core.

2, bicycle automatic inflator as claimed in claim 1 is characterized in that being shaped as of described gravity pendulum is fan-shaped.

3, bicycle automatic inflator as claimed in claim 1 is characterized in that described piston rod and inlet plenum are thread connection.

4, bicycle automatic inflator as claimed in claim 1 is characterized in that described side face of piston ring is a spill, and piston rod is made up of push rod and the screw rod that is threaded with push rod, and the sphere that cooperates with the piston concave surface is arranged on the push rod top.

5, bicycle automatic inflator as claimed in claim 1 is characterized in that on the described pedestal limit spring being housed.

6, as claim 1 or 2 or 3 described bicycle automatic inflators, it is characterized in that between described gas piping and gas dome check valve being housed, safety valve is housed on the gas dome.