CN103465736A - Bicycle automatic pressure regulating micro inflator pump - Google Patents

Abstract

The invention discloses a bicycle automatic pressure regulating micro inflator pump. A pump cover is connected to a pump body, a lower cover and a cam case via screws so as to form an integral body; and pressure regulating assembly devices, self-locking assembly devices and spare and accessory parts are arranged in the pump body and at the external of the pump body respectively. When the pressure of a tyre connected with an air pipe joint of the bicycle automatic pressure regulating micro inflator pump is lower than a preset pressure, the bicycle automatic pressure regulating micro inflator pump will inflate the tyre automatically; when the pressure of the tyre reaches the preset pressure, the bicycle automatic pressure regulating micro inflator pump is locked and shuts down automatically, so that the pressure of the tyre is always under saturate conditions. The bicycle automatic pressure regulating micro inflator pump is simple in structure, is convenient for disassemble and assembly, and is low in cost.

Description

Automatic pressure-adjusting miniature inflating pump for bicycle

One, technical field

The present invention relates to a kind of gas filled device of wheel tyre, especially a kind of automatic pressure-adjusting miniature inflating pump of bicycle.

Two, technical background

A lot of for the tool kind of bike tyre inflation in the market; but how can be using gas filled device an accessory tapes on bicycle on bicycle; can in tire, inflate whenever and wherever possible; and can guarantee after tire internal gas pressure abundance again can auto-stop; and can in the trend tire, inflate during lower than tire actual needs air pressure when air pressure, such device is undoubtedly the cycling, and the person dreams of.And the present invention chases the needs in market just and a kind of product arisen at the historic moment---the automatic pressure-adjusting miniature inflating pump for bicycle developed.

Three, summary of the invention

The present invention seeks to realize like this: a kind of automatic pressure-adjusting miniature inflating pump for bicycle, it comprises on it camhousing with oil hole, the cam be fixed together with axle is arranged in casing, cam and axle itself is motionless, integrated member and cam that camhousing forms with large piston in the pump be linked together with it and the pump housing are made relative gyroscopic movement, large piston does reciprocating linear motion in the pump housing, thereby pore and appendix gas by the pump chamber bottom, the threeway charging connector is pressed in tire, air pressure in tire is during higher than settling pressure, high pressure draft returns through the appendix air-teturning hole, enter in the pressure regulation valve pocket and push pressure regulating valve to other end air-flow through gas port, thereby the ventilation flue enters in the chamber of taper valve piston and promotes valve piston 3 viscous motion steel balls are extruded and caused large piston to form separating contacting state in cam, so large piston quits work, thereby guarantee that tire is forever in saturation conditions, also reason air pressure does not exceed settling pressure and makes tyre break.If, but the tire internal gas pressure is during lower than settling pressure, taper valve piston internal gas pressure also descends thereupon, valve piston is subject to spring pressure and resets.Now the viscous motion steel ball is because the squeese pressure of releasing valve piston resets.Therefore, large piston contacts and does reciprocating linear motion with cam again.So iterative cycles has guaranteed: air pump work when the tire internal gas pressure is low and inflating, and air pump is locked and is quit work when air pressure meets or exceeds settling pressure.

Four, accompanying drawing explanation

Fig. 1, Fig. 2 are integral structure figure of the present invention.

In figure: 1 camhousing, 2 large pistons, 3 lower covers, 4 taper valve pistons, 5 orienting sleeves, 6 glands, 7 tower springs, 8 pump housing 8a air gates, 9 check valves, 10 unidirectional valve springs, 11 air gate joints, 12 air-teturning holes, 13 pressure regulation O-ring seals, 14 gas ports, 15 pressure regulating valves, 16 pressure regulation springs, 17 pressure regulation cap seal rings, 18 pressure regulation caps, 19 locknuts, 20 ventilation flues, 21 large piston packing rings, 22 taper valve piston stage clips, 23 holding screws, 24 connect screw, 25 viscous motion steel balls, 26 large piston top steel balls, 27 axles, 28 cams, 29 appendix lock nuts, 30 appendixs, 31 tire tube valve lock nuts, 32 threeway tire tube valves, 33 manual inflation's mouth lock nuts, 34 manual inflation's mouths

Five, the specific embodiment

Below in conjunction with accompanying drawing, the invention will be further described:

Replaced the axle skin of antero posterior axis and be fixed together with the floral disc on bicycle at Fig. 1 embodiment convexity roller box (1), cam (28) is fixed together with axle (27).Described camhousing (1) cam (28) and axle (27) form the actuating unit of pump, the unidirectional valve spring of described air gate (8a) check valve (9) (10) air gate joint (11) appendix lock nut (29) appendix (30) threeway tire tube valve (32) forms the inflation mechanism of air pump, described air-teturning hole (12) pressure regulation O-ring seal (13) gas port (14) pressure regulating valve (15) forms automatic pressure regulating mechanism, described ventilation flue (20) gland (6) taper valve piston (4) taper valve piston stage clip (22) viscous motion steel ball (25) coordinates and forms self-locking viscous motion mechanism with large piston (2), the cam (28) be fixed together with axle (27) is arranged in the described camhousing with oil hole (1), when cam (28) with large piston (2) while making relative gyroscopic movement, piston (2) is done straight reciprocating motion, gas presses to check valve (9) and is pressed in tire through appendix (30) threeway tire tube valve (32) from pump chamber bottom air gate (8a), air pressure in tire is during higher than settling pressure, high pressure draft returns through appendix (30), air-teturning hole (12) enter in the pressure regulation valve pocket pressure regulating valve (15) is pushed open and through gas port (14) ventilation flue (20) enter taper valve piston (4) thus chamber in the promotion valve piston 3 viscous motion steel balls (25) are extruded, thereby the viscous motion piston quits work, only have air pressure in tire be reduced to settling pressure when following large piston (2) owing to releasing viscous motion power, start again inflation work, so repeatedly just guaranteed that the interior air pressure of tire is forever in saturation conditions.

In embodiment shown in Fig. 2, described tire tube valve lock nut (31) joins appendix (30) and threeway tire tube valve (32) together, described manual inflation's mouth lock nut (33) joins manual inflation's mouth (34) and threeway tire tube valve (32) together, be set to the tire valve place and both simplified the structure due to former design charging connector is changed, strengthen sealing property, also be convenient to the connection of the pump housing and camhousing and manual inflation's operation.

Claims (3)

1. An automatic voltage miniature bicycle air pump, which includes filling hole which is provided with a cam box ( 1 ) cover a large piston ( 2 ) (3 ) small conical piston ( 4 ) guide sleeve ( 5 ) gland ( 6 ) spring tower ( 7 ) the pump ( 8 ) of the hole (8a) one-way valve ( 9 ) a check valve spring ( 10 ) of the fitting hole ( 11 ) to return hole ( 12 ) regulator seal ring ( 13 ) guide holes ( 14 ) regulators ( 15 ) adjusting spring ( 16 ) regulator cap seal ( 17 ) regulator cap ( 18 ) lock nut ( 19 ) airway ( 20 ) large piston seal ( 21 ) taper small piston spring ( 22 ) set screws ( 23 ) coupling screws ( 24 ) drag ball ( 25 ) piston top big balls ( 26 ) axis ( 27 ) of the cam ( 28 ) inflatable tube lock cap ( 29 ) inflatable tube ( 30 ) lock valve cap ( 31 ) three-way valve ( 32 ) artificially inflated mouth lock cap ( 33 ) artificially inflated the mouth ( 34 ) , characterized in that the pump cover ( 8 ) (3 ) with the cam box ( a ) coupling by a fastening screw 4 is integrally mounted , the cam box ( 1 ) of the cam ( 28 ) and the shaft ( 27 ) constituting a power inflator mechanism , out of the hole (8a) one-way valve ( 9 ) a check valve spring ( 10 ) of the fitting hole ( 11 ) fill tube locking cap ( 29 ) inflatable tube ( 30 ) three-way valve ( 32 ) constitutes a pneumatic pump mechanism , the back hole ( 12 ) regulator sealing gasket ( 13 ) guide holes ( 14 ) pressure regulator ( 15 ) constitute a pressure regulating mechanism , the guide tube ( 20 ) the lid ( 6 ) the smaller piston cone ( 4 ) taper smaller piston spring ( 22 ) the drag balls ( 25 ) with the large piston ( 2 ) a self- locking with the drag mechanism, the large piston ( 2 ) along the horizontal direction and is close to the guide tube ( 20 ) of the lid side of the threaded connection ( 6 ) , the lid ( 6 ) attached to the other end of the tapered successively smaller piston spring ( 22 ) taper smaller piston ( 4 ) the drag balls ( 25 ) and the tapered tip of the smaller piston ( 4 ) of the stagnation point movable ball ( 25 ) .
2. 2. the automatic pressure-adjusting miniature inflating pump of bicycle according to claim 1, is characterized in that pressure regulation cap (18) and the joint portion of the spiral marking connection of pressure regulating valve (15) inner chamber are provided with pressure regulation cap O-ring seal (17).
3. 3. the automatic pressure-adjusting miniature inflating pump of bicycle according to claim 1, the side casting that it is characterized in that tire tube valve (32) has been closed manual inflation's mouth cap (33) and has been replaced the former charging connector be located on the pump housing.

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