CN2113906U

CN2113906U - Full-automatic tyre-inflating pump

Info

Publication number: CN2113906U
Application number: CN 92204281
Authority: CN
Inventors: 丁海宾; 陈冬富
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-03-18
Filing date: 1992-03-18
Publication date: 1992-08-26

Abstract

The utility model relates to a full-automatic tyre-inflating pump, comprising a pump body installed on the wheel which rotates along with the pump and a big gear wheel fixed on the wheel axle. In the pump body, a miniature air pump and an automatic control system are provided. When the clutch pushes the small gear wheel outside the pump body to extend to engage the big gear wheel, the air pump rotating along with the wheels inflates to the tyres; when the tyres are inflated with sufficient air, the clutch drives the small gear wheel to disengage from the big gear wheel, so that the air pump stops inflating to the tyres. The process is completely carried out automatically under the control of the tyre pressure, which needs no human operation. The utility model has the advantages of original in conception, simple structure, easy manufacture, convenient installation and low cost, which can be applied to the light tyre of a bicycle, a tricycle, a vehicle for disabled person, a motorcycle, etc.

Description

Full-automatic tyre-inflating pump

The utility model full automaticity tire air pump, it relates to a kind of vehicle annex.

Existing tire automatically fully device is varied, and the eccentric wheel drive-type is arranged, and gear type, gravity are inflated formula, air bag air-stored etc.But actuating mechanism is filled, is stopped in the operation that will have that has, and the very important person is for disconnecting behind the automatic sufficient gas that has, and the air pressure foot rear inflation apparatus that has works on to aerial exhaust the complex structure that has.

The purpose of this utility model just provides a kind of existing car wheel structure that do not change, can directly load and unload, simple in structure, do not need any external force actuating, when low tyre from the trend inflation of tire, behind the tire sufficient gas, stop inflation automatically, as long as wheel remains the full-automatic aeration pump that tire has the air pressure that enough travels.

The purpose of this utility model realizes by following way: the pump housing that piston pump and automatic controller will be housed is fixed on can be with the place of tyre rotation, it stretches out external miniature gears and can slide vertically, when it outwards skids off, promptly be fixed on the big gear wheel engagement that axle end do not rotate.Since miniature gears with the pump housing with wheel revolutions, so miniature gears in rotation in big gear wheel revolution, drives the crankshaft revolution in the pump housing, the micro air pump by having connecting rod, piston through non-return valve to inflation of tire.When miniature gears is withdrawn, disconnect engagement with big gear wheel, miniature gears stops operating, and above-mentioned abundant process promptly stops.Stretching out and indentation of miniature gears is subjected to the Pneumatic pipe cleaner in the tire to cross the spring link system manipulation fully, and the elastic force of adjustment spring etc. can obtain different initial sums and stop air pressure, thereby reaches the purpose of full-automatic aeration.

Adopt this full automaticity tire air pump on the vehicle, just can change and must could save time for the present situation of inflation of tire by vehicle immobilization at present, laborsaving, also can be because of in the way during tire deflation, owing to not being with inflatable appliance to be forced to stagnation of movement; Because it can often keep the tire sufficient gas, tire is prolonged service life; When tire is stabbed gas leakage because of external force, because its constantly tonifying Qi can make vehicle continue to travel.

Below in conjunction with accompanying drawing the utility model is described further.

Accompanying drawing is the utility model master cutaway view that is used for bicycle.

Among the figure:

1, big gear wheel 2, miniature gears 3, power-transfer clutch

4, the pump housing 5, bent axle 6, micro air pump

7, connecting rod 8, piston 9, non-return valve

10, air chamber 11, air extractor duct 12, jack

13, connecting rod 14, spring 15, π type spring frame

16, shift fork

When no gas or air pressure in the tire were not enough, the air chamber of Lian Tonging (10) internal gas pressure was interior identical with tire with it, unable push rod jack-up with jack (12).The spring frame (15) that connecting rod (13) other end and strand connect together is in and lifts the position.Because π type spring frame (14) links to each other by a thin axle that is with spring with shift fork (16) one ends, under the promotion of spring (15) tension force, shift fork (16) one ends are depressed, and the other end lifts, and promotes power-transfer clutch (3) miniature gears (2) is released and big gear wheel (1) engagement.The wheel of rotation drives the pump housing (4) and rotates together, miniature gears (2) then revolves round the sun around big gear wheel (1), because the big gear wheel (1) that meshes together is fixed, just instead push away miniature gears (2) rotation, torque is passed to bent axle (5) by power-transfer clutch (3), make piston (8) crank motion of micro air pump (6) by connecting rod (7), pressurized air is charged in the tire through non-return valve (9) air chamber (10) air extractor duct (11) and flexible communicating pipe, tire tube valve.Along with inflating in the tire, air chamber (10) internal pressure raises, when height arrived set-pressure, the push rod that air pressure promotes jack (12) rose, and an end that spring frame (14) is linked by connecting rod (13) with it descends, under the effect of spring, shift fork (16) one ends are lifted, and the other end is stirred the power-transfer clutch indentation, make the engagement of miniature gears (2) disengagement and big gear wheel (1), stop operating, gas replenishment process has also just stopped.When in the tire because gas leakage waits when making air pressure reduce to certain value, and air chamber (10) internal pressure is not enough to the push rod of jack-up jack (12), and under the effect of spring (14) elastic force, maneuvering system is recovered as the figure position, air pump moves again to inflation of tire.

According to the appropriate design of Bicycle Plant to tire pressure, the tire pressure design was at 2-2.5kg/cm when the full-automatic aeration pump began to inflate automatically ², stop inflation pressure and be controlled at 3.5-4kg/cm ², model machine probationary certificate, inflationtime at this moment are generally at 2-5 minute.

Carry out Transform Type design according to above-mentioned principle, this full-automatic aeration pump also can be used for three-wheel vehicle, disabled person's car, motor-car and various light tyre and inflates automatically.

Claims

1, the full automaticity tire air pump belongs to vehicle attachment technique field, it is formed by be installed in the pump housing that also rotates on the wheel and be fixed on big gear wheel motionless on the wheel shaft thereupon, it is characterized in that: micro air pump and automatic handling system are housed in the pump housing, the pump housing stretches out one outward can be at the miniature gears that certain sliding stroke is axially arranged, it be subjected to pump housing internal clutch affect can with big gear wheel engagement or jump out of mesh, when two-wheeled meshes, micro air pump is to inflation of tire, stop inflation when jump out of mesh, this process is carried out under tire pressure control automatically.

2, full automaticity tire air pump according to claim 1, it is characterized in that: when two gears mesh, because wheel is rotating, miniature gears sends torque to bent axle in rotation when big gear wheel revolves round the sun by power-transfer clutch, and drivening rod promotes the reciprocating motion of the pistons of micro air pump, through non-return valve air is pressed into air chamber, air chamber has an air extractor duct outward, is communicated with tire valve through flexible steel in flat section tubing, and pressurized air promptly enters tire.

3, full automaticity tire air pump according to claim 1 and 2, it is characterized in that automatic operation system is on the top of the air chamber behind the non-return valve jack device to be arranged, its induction opening communicates with air chamber, the top of the push rod connecting rod that can rotate around fixed pivot of ining succession, the other end of connecting rod and π type spring frame strand connect, π type spring frame connects by a thin end strand with shift fork that is wound with spring, shift fork and π type spring frame rotate around same fulcrum, the other end of the shift fork power-transfer clutch of ining succession can be stirred power-transfer clutch along bent axle certain stroke that slides.When tire pressure was high or low, the jack push rod rose or falls, and the actuating said system is stirred power-transfer clutch, affects miniature gears and big gear wheel jump out of mesh or engagement, made air pump stop inflation or inflation.