CN85202403U

CN85202403U - Automatic air charging system for travelling tyre

Info

Publication number: CN85202403U
Application number: CN 85202403
Authority: CN
Inventors: 郑永如
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-06-13
Filing date: 1985-06-13
Publication date: 1986-04-02

Abstract

Disclosed is an automatic air charging device for rotating tires, which is fixed to a wheel and follows the wheel to rotate, and which belongs to an air charging device for tires of light vehicles. An automatic air charging device for rotating tires does not exist for a long time. The utility model solves the problem, has the vehicles with lightly leak air tire continued to drive, and keeps the tire from being flat. The utility model is composed of one mini-size inflator fixed to the wheel, one zigzag push rod and one eccentric power mechanism. A regulating device of the inflation pressure is installed on the piston. The utility model can be installed on bicycles or other light vehicles for automatic inflation to rotating tires.

Description

Automatic air charging system for travelling tyre

The invention belongs to for motor vehicle Tire Inflation System of a kind of small-sized underloading.Also there is not a kind of device that can in vehicle is advanced, put on the air to tire automatically for a long time.Existing dilly as the inflation of tire of bicycle, generally is to depend on extraneous compressed air source or manual Floor Pump to carry out.On the way vehicle such as unexpected generation tire flat often can not find the place that the inflation service is provided temporarily, can only carry out on foot, if long-distance loading is ridden in the countryside, the trouble of being added is just not little.Though also have the people when going out by bike with manual pump on the car band, always some trouble unavoidably and can only be stopped and inflates, can't accomplish to inflate while riding.This its another benefit of the inflation mode of inflating while riding just is, it can make vehicle take place at tire to be maintained under the situation of slight gas leakage to ride normally and not make the flat gas of tire.The present invention produces in order to satisfy these a kind of technical needs just.

General introduction of the present invention:

It is a kind of that to be fixed in that wheel rotates in rotation with wheel be the Tire Inflation System of inflation of tire automatically, it comprises: one is fixed in the micro pump that wheel rim rotates with wheel, the piston that the inflation pressure control apparatus is housed, one is zigzag push rod and the eccentric power mechanism that reciprocating thrust force is provided for piston.

The object of the invention:

The objective of the invention is to make traditional manual pump that is separated with vehicle to be loaded on vehicle on the wheel of body, make it become as a whole with vehicle, the present invention makes the rolling of wheel become the propulsion source of inflating, thereby exempted the manual activity of the people in traditional mode of inflating, it is that tire carries out automatic gas filed purpose that vehicle has been realized while advancing.Even inflation pressure regulating mechanism of the present invention has guaranteed in inflation also can not take place under the situation of head the situation of blowout, can make the highest inflation pressure constant on a value.

Description of drawings:

Fig. 1 is a suitable bicycle view longitudinally, reflects the structure and the assembling situation of whole gas filled device.

Fig. 2 is the transverse views of whole gas filled device, reflects the structure and the assembling situation of whole gas filled device.

Fig. 3 is the enlarged drawing of A portion among Fig. 1, reflects the assembling situation of eccentric Moving plate price fixing.

Fig. 4 is the enlarged drawing of B portion among Fig. 1, reflection push rod and the hollow connection pipe bonded assembly of eccentric Moving plate situation.

Fig. 5 is the enlarged drawing of C portion among Fig. 1, the inflation pressure control apparatus of reflection piston.

Specific embodiment is introduced:

Shown the assembling situation of whole gas filled device on wheel with Fig. 2 among Fig. 1, at this, just be that example describes with the bicycle, there is an air gate on the top of inflator (2), it is connected with thread forms with valve nozzle (1) on being fixed in wheel rim, and the skirt section tail end of inflator (2) sits in a carriage (21) lining, and carriage (21) is fixed on two adjacent steel wires, inflator (2) is fixed in the plane, garden of wheel it because top and tail end two are connected restfully.What provide reciprocal propelling thrust for the piston (3) of inflator (2) is an eccentric power mechanism, it is made up of the eccentric price fixing and the Moving plate of garden shape, eccentric price fixing (13) and eccentric Moving plate (12) are assembled all-in-one-piece with one heart, the former is fixed on the stationary part of axletree, be quiescence with respect to whole vehicle frame, the latter and push rod, piston, inflator rotates with wheel together, the garden heart of eccentric power mechanism is to the distance in wheel axle center in rotation, it is eccentric throw, become the crank length of a piston crank mechanism, this segment length of two-fold is exactly the length of a stroke of piston, in one week of wheel, piston is just finished a suction stroke and a compression stroke.Be distributed with the spherical steel ball (14) that they are separated between eccentric price fixing (13) and the eccentric Moving plate (12) on week in its garden, when wheel turns during one week, eccentric Moving plate (12) just encloses with respect to eccentric price fixing (13) rotation one.The axle center of its eccentric orfice and wheel shaft coincided when eccentric price fixing (13) was installed on the static position of wheel shaft, one packaged decorations board (17) also is housed on eccentric price fixing (13) one side outwardly, rivet with rivet (16), (15) are the spacer ring between eccentric price fixing and the decoration board.Eccentric Moving plate (12) has a hollow connection pipe (20) that outwards protrudes at its garden week upper edge radial direction, it is used to make push rod (18) to be connected with eccentric Moving plate (12), and the reciprocal propelling thrust that eccentric Moving plate (12) is produced directly is passed on the piston (3) by push rod (18).Hollow connection pipe (20) vertically dissects at it, dissect from its end farthest from the eccentric Moving plate garden heart, the length of dissecing is 4/5ths of whole hollow connection pipe longitudinal length length overall, the width that dissects can just make push rod (18) freely not enter in the hollow connection pipe (20) with hindering or be moved out to the outside along the horizontal direction of vertical axis, and the opening that dissects makes the turnover of push rod quick and easy.Lock nut (19) is used for the locking that is connected with push rod (18) and hollow connection pipe (20), it has two diameter differences but the identical negative thread of pitch, diameter big with outside thread interlock hollow connection pipe (20), diameter little with outside thread interlock push rod (18).Make the inner by-pass prot (4) that connects mutually with ambient atmosphere of inflator along being distributed with on the Zhou Fangxiang of garden on the end face of piston (3), the packing ring (8) of band rubber veneer is close to by-pass prot (4) under the elastic force effect of spring (11), when inflation pressure surpasses the value of a regulation, inflator in-to-in pressurized air will be broken through out the packing ring (8) of band rubber veneer, arranges to ambient atmosphere from by-pass prot (4).Thereby, as long as turn setting nut (9) advances or goes out, spring perch (10) will compress or releasing spring (11), and this has just regulated rubber cradle (23) and flat gasket (8) power that is adjacent to by-pass prot (4), thereby plays the adjusting effect of high inflation pressure.It is because the axis direction that eccentric Moving plate (12) passes to the direction of power of push rod (18) and inflator (2) at grade cause not that push rod (18) is indentation, and push rod (18) is made the specific (special) requirements that indentation has just satisfied this power transmission.Be provided with one vertical mutually with the axis direction of inflator along the nidus that bends on the inflator axis direction at push rod (18) with the axis direction of short tube (22) short tube of the affixed one of push rod, when you want to adopt manual mode to inflate, you only need unclamp lock nut (19), push rod (18) is extracted out in hollow connection pipe (20), used then such as just can manually inflating in instruments such as the bottle opener insertion short tube (22).

It is that to be loaded on bicycle be that tire is inflated automatically that typical case of the present invention uses.When finding the flat gas of bike tyre, car only need temporarily stop, push rod (18) is become free-ended one to be inserted in the hollow connection pipe (20), rotating-wheel, make eccentric Moving plate (12) be in compressed gas cylinder to dead-centre position, the push rod (18) that will be inserted in this moment in the hollow connection pipe (20) is pushed on the extreme position of inflator compression end of a period, uses lock nut (19) that push rod (18) is pinned on hollow connection pipe (20) then, has so just finished automatic gas filed dead work.If tire is slight flat gas, then the cyclist can get on the bus, the inflation while riding; If the flat gas severity of tire should be carried out putting on the air or adopting manually and inflate on foot, treat that Tyre inflating finishes, lock nut (19) is got loose, push rod (18) is separated with eccentric Moving plate (12), when normally riding, just keep such state.When leaking gas when finding tire to be pierced, push rod (18) is inserted in the hollow connection pipe (20), according to aforesaid method push rod and eccentric Moving plate are connected, just can realize inflation while driving a vehicle, as long as the tolerance that charges into is more than or equal to the tolerance that spills, tire will not flat gas, makes vehicle still can keep normal driving under the situation that gas leakage takes place.Application of the present invention is not limited to bicycle, and also can be applicable to various light-duty vehicles is automatic tyre air inflation.(End)

Claims

1, a kind of gas filled device, it includes inflator, piston and promotion part, it is characterized in that:

A, one are fixed on the wheel rim, rotate the micro pump that in rotation tire is put on the air automatically (2) with wheel.

B, one have on end face and make inner by-pass prot (4) that connects mutually with ambient atmosphere of inflator and the piston (3) that the inflation pressure regulating mechanism is housed.

C, one are center of gyration with the wheel shaft center, are the piston crank mechanism that the rotation with wheel of crank is converted into reciprocating motion of the pistons with the distance between eccentric stiffener center to the wheel shaft center.

2, the described gas filled device of claim 1, it is characterized in that, described inflator (2) is in the plane of wheel, be fixed on the wheel rim along radial direction, the air gate on its top is chewed (1) with the tire valve on being fixed on wheel rim and is directly linked to each other, its skirt section tail end sits on the carriage (21), and carriage (21) is fixed between two adjacent wheel steel wires.

3, the described gas filled device of claim 1, it is characterized in that, described inflation pressure control apparatus and the coaxial assembling of piston (3), it includes setting nut (9), spring perch (10), spring (11) rubber grommet (23) and flat gasket (8), and wherein rubber grommet (23) and flat gasket (8) are close to by-pass prot (4) under the compressing of spring (11).

4, the described gas filled device of claim 1 is characterized in that, described piston crank mechanism includes eccentric power mechanism, push rod (18) and push rod bindiny mechanism.

5, the described gas filled device of claim 4, it is characterized in that, described eccentric power mechanism includes the eccentric price fixing (13) of garden shape and the eccentric Moving plate (12) of annular, they are assembled all-in-one-piece with one heart, garden between two dishes is distributed with spherical steel ball (14) on week, make it to separate and keep state in relative rotation.

6, the described gas filled device of claim 5 is characterized in that, described eccentric price fixing (13) is keeping relative static state to be fixed on the static position of axletree with vehicle frame, and the shaft core position of its eccentric orfice center and wheel shaft coincides.

7, the described gas filled device of claim 5 is characterized in that, described eccentric Moving plate (12) has a hollow connection pipe (20) that is used to connect push rod (18) and eccentric Moving plate (12) that stretches out away at its garden week upper edge radial direction.

8, the described gas filled device of claim 7 is characterized in that, described hollow connection pipe (20) is vertically being dissectd along it, and the width that cracks that dissects can just make push rod (18) along laterally freeing in and out in the hollow connection pipe (20).

9, any one described gas filled device in the claim 1 to 8 is characterized in that, described push rod (18) is indentation, its end is connected with piston (3), the other end inserts in the hollow connection pipe (20), and the degree of depth of insertion can regulated at will, is locked by lock nut (19).

10, the described gas filled device of claim 9, it is characterized in that described lock nut (19) has two to become step-like negative thread with identical pitch, the negative thread that diameter is big is connected with the outside thread of hollow connection pipe (20), and the negative thread that diameter is little is connected with the outside thread of push rod (18).

11, the described gas filled device of claim 9, it is characterized in that described push rod (18) have along the tortuous nidus of inflator central axial direction push rod one with the perpendicular short tube (22) of axis.