CN2127920Y

CN2127920Y - Automatic inflating bicycle

Info

Publication number: CN2127920Y
Application number: CN92223448U
Authority: CN
Inventors: 范佳伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-05
Filing date: 1992-06-05
Publication date: 1993-03-10
Anticipated expiration: 2002-06-05

Abstract

The utility model discloses a bicycle with an automatic inflating device for vehicle tyre. An eccentric wheel is installed on the bicycle shaft of the existing bicycles, the sleeve of the shaft is provided with two mounting panels, and an air compression chamber is formed by two mounting panels, three circular rings and two diaphragms of rubber. When the two mounting panels are rotated with the circular disk on the shaft, the push rod on the eccentric wheel is driven to rotated around the fixed eccentric wheel, a curved bar is rotated around a pivot point by the radical reciprocating movement of the push rod, the pressure plate of the air compression chamber is pushed, air inhaled in the air compression chamber is pressed into a change valve, and the diaphragm of the change valve is acted by the air pressure of the vehicle tyre and the spring of the valve rod; when the vehicle tyre is lack of air, a valve core is closed by the spring of the valve rod, the one-way valve is pushed away by the compressed air, and air is pressed in the vehicle tyre; when air is enough in the vehicle tyre, the diaphragm of the change valve is pressed down, the valve core is opened, and air is not compressed (air is discharged into atmosphere through the air outlet of the change valve), the rider's additional physical output is light, and the diaphragm of rubber of the air compression chamber is not easy to be damaged.

Description

Automatic inflating bicycle

The invention relates to a kind of bicycle that has the automatic pump-up device of tire.It can supply gas to tire automatically when cycling, behind tire gas foot, it can stop automatically to the tire tonifying Qi again, and tire just can keep certain air pressure like this.

Present general-duty bicycle after riding or parking a period of time, all wants the cyclist to inflate to bicycle, and this is inconvenient.

Purpose of the present invention provides a kind of improved bicycle, and it not only can be in riding during the tire deficency, inflates a tire automatically, can stop automatically inflating when the gas foot again.Like this, the bicycle user need not to waste time and energy and inflates to bicycle, and tire can not cause repeated deformation and reduction of service life because of deficency sometimes yet.

Invention is to realize like this.Load onto an eccentric wheel on the axletree of existing bicycle, it and axletree all maintain static moving.The eccentric wheel periphery has raceway and rolling body is housed, and there is an outer ring in rolling body foreign side, inserts a push rod on the outer ring, and when rotated on eccentric wheel this outer ring, push rod is rotation on one side just, Yi Bian make radial motion.The present invention is divided into two sections with the axle skin of axletree, every section all is fixed with garden dish and a mounted panel, disk rotates with the axle skin, and the promotion mounted panel rotates, the top of two mounted panels accompanies three and supports steel loop and two flexible rubber barrier films, all there is a platen in the foreign side of each barrier film, on the extension bar of platen bearing pin is arranged, it can slide in the slotted eye on the curved bar that connects push rod, bearing pin is also arranged on the push rod, also can slide in the groove of the other end of curved bar, curved bar also can rotate around the fulcrum that is fixed on the mounted panel, like this, the radial expansion motion of push rod makes two platen push-and-pull diaphragm of rubbers of plenum chamber, and with the air of fine pressure air chamber, be pressed into change-over valve, the valve rod one end spring-loaded in the change-over valve via aperture, the other end is connected with pneumatic diaphragm, stingy chamber on the pneumatic diaphragm is connected with tire with taking over, and the valve rod of change-over valve can move on both direction and valve port is closed or opened under the pressure combined action of spring force and pneumatic diaphragm like this.A check valve also is housed on the change-over valve, and it is connected with the little air chamber of taking over on the pneumatic diaphragm, and an air suction valve also is housed on the middle steel loop of plenum chamber.

When bicycle of the present invention is ridden, eccentric outer ring can be rotated around the eccentric wheel body on the axletree, it also drives push rod simultaneously and makes rotation and radial motion, the radial motion of push rod makes curved bar rotate around fulcrum shaft, the platen of plenum chamber in latter's push-and-pull, plenum chamber just enters commutation after compression from the air suction valve suction air and cuts down, when tyre pressure is low, the change-over valve valve rod is under the spring force effect, valve port is closed, pressurized air is pushed the check valve valve block open, enters the little air chamber of pneumatic diaphragm top, enters tire by adapter again, after tyre pressure rises to certain value, the pressure ratio spring force and the aerodynamic force of pneumatic diaphragm are big, and valve rod moves down, and valve port is opened, air in the plenum chamber is via the deflation hole exhaust to atmosphere of the little change-over valve of resistance, air in the plenum chamber is not compressed, and air resistance suffered during the motion of plenum chamber platen is very little, and the additional physical demands of cyclist is also very little.

The change-over valve that the present invention adopts is inflated automatically to tire in the time of can realizing cycling, and like this, tire is because of wound, and the disappointing deficency that causes of internal injury or valve inside can not influence riding of bicycle.

The device of calming the anger of the present invention is by the flexible rubber diaphragm and support steel loop to form, diaphragm and the fixing seal that is sealed into of supporting steel loop, not motion sealing, like this after the change-over valve valve port is closed, gas in the sealed volume is difficult for leaking outside, can reach certain compression ratio in the time of by compression, realize micro-air is squeezed into the purpose of tire.

Another advantage of the present invention is when tire not being inflated, air in the plenum chamber is via the emptying of change-over valve deflation hole, at this moment gaseous tension only is slightly larger than barometric pressure in the plenum chamber, therefore diaphragm applied force is very little, and adopt two barrier films, the deflection of diaphragm can reduce half, and the work life of diaphragm just can prolong.

The concrete structure of invention is provided by following embodiment and accompanying drawing thereof:

Accompanying drawing 1 is the section-drawing at the bicycle shaft place of the proposition according to the present invention.

Accompanying drawing 2 is accompanying drawing 1 section-drawings along A-A.

Describe the details and the working process of the bicycle that proposes according to the present invention in detail below in conjunction with accompanying drawing.

On the axletree 1 of bicycle of the present invention eccentric wheel 2 is housed, in the raceway of its periphery, a plurality of balls 3 and outer ring 4 is housed, the outer ring radially is fixed with push rod 5, its end is fixed with bearing pin 6, and the latter is inserted in by running-fit in the slotted eye 10 of two curved bars 7, and the slotted eye 11 of the curved bar other end also has bearing pin 8; It is fixed on the extension bar 13 of platen 12 of barrier film 9, and curved bar 7 can rotate around fulcrum 39.Two platen extension bars 13 can slide in the hole 15 of mounted panel 14, two mounted panels are inserted in the slotted eye of garden dish 37, the porose fastening cover in its lower end skin 16 of packing into, mounted panel 14 clips two and supports steel loop 17 and 1 interior steel loop 18, these steel loops and barrier film 9 and mounted panel 14, clamp with a plurality of bolts, form a plenum chamber, commutation valve body 20 and intake valve body 21 are housed on the interior steel loop, compression spring 22 and valve rod 23 are housed in the change-over valve, valve rod 23 is fixed together with the barrier film 24 of stingy chamber 25, change-over valve has valve port 27 and exhausr port 26, also has check valve 28, it only allows pressure gas to push spool 29 open after flow into stingy chamber 25 by taking over 30, and little air chamber has to be taken over 31 and be connected with tire tube valve 33 on the bicycle tube 32, and this tire tube valve is slightly different with the tire tube valve of existing bicycle, it can be threaded with adaptor union 34 usefulness, and valve block 35 and spring 36 are also arranged in the air suction valve 21.Label 40 is a support in the accompanying drawing 1.After nut on it and the axletree 1 compresses, fixed axle is not rotated.Label 41 is a screw, and it is unified into an integral body to two garden dishes 37.

Automatically the process of inflating of bicycle of the present invention such as following.

During cycling, wheel and axle skin 16 rotate together, the garden dish 37 that drives on the axle skin rotates with the axle skin, the garden dish promotes 14 rotations of two mounted panels, bearing 38 on the mounted panel, outer ring 4 on push rod 5 and the eccentric wheel rotates around eccentric wheel, push rod 5 is also made radial motion, bearing pin 6 push-and-pull curved bars 7 on the push rod are around fulcrum 39 swings, the slotted eye 11 of curved bar other end push-and-pull again bearing pin 8 on barrier film platen 12 extension bars, make platen tension and compression barrier film 9, when push rod during away from the axletree axle center, barrier film is drawn back, air suction valve valve block 35 on the interior steel loop 18 is just backed down by bar pressure, the air admission plenum chamber, outer ring 4 continues to rotate around eccentric wheel 2, and push rod is shifted to the axletree axle center, and makes curved bar 7 drive platen 12 compressing barrier films 9, air in the plenum chamber, just be pressed into change-over valve 20, when tire gas foot, the gaseous tension that pneumatic diaphragm 24 acts on the commutation valve rod 23 is bigger than the spring force of 22 pairs of valve rods of spring, valve rod 23 moves down, valve port 27 is opened, and the air in the plenum chamber is from exhausr port 26 exhaust to atmospheres of change-over valve, at this moment, air in the plenum chamber is not compressed, and air pressure is very little, and platen 12 is subjected to gaseous tension also very little, push rod 5 pulling force are also very little, the cyclist does not almost have additional load, does not promptly have additional physical demands, when tire 32 deficencys yet, spring force is bigger than the aerodynamic force of diaphragm, move on the commutation valve rod 23, valve port 27 is closed, and the pressure chamber forms confined space, gas is compressed, and gaseous tension makes valve port 27 close tightlyer.When air pressure was enough, gas backed down check valve valve block 29, entered tire via stingy chamber 25, finish Tyre inflating after, when tyre pressure increases to certain value, pneumatic diaphragm make again the commutation valve rod 23 move down, air is again through change-over valve exhausr port exhaust to atmosphere.

Claims

1, a kind of bike inflated automatically is characterized in that:

The axle skin of axletree is divided into two sections, the barrier film plenum chamber by the mounted panel driven rotary is housed on these two sections axle skins; A fixing eccentric wheel is housed on the axletree herein again; Also have two curved bars by the push-and-pull barrier film of the drive of the push rod on the eccentric outer ring;

A change-over valve that is contained in plenum chamber air extractor duct place is arranged, and the air that it can make plenum chamber come out automatically enters tire through check valve, or the exhausr port exhaust to atmosphere on change-over valve, and it includes:

One with taking over the little air chamber that has pneumatic diaphragm with the tire bonded assembly;

A pressure combined action that is subjected to spring force and above-mentioned pneumatic diaphragm is used for valve rod that valve port is closed or opened;

One with taking over the check valve that is connected with little air chamber on the pneumatic diaphragm.

2, bike inflated automatically according to claim 1, its feature also is: the barrier film of above-mentioned barrier film plenum chamber has two, and they move when calming the anger in the opposite direction.