CN85105176A

CN85105176A - Automatic aerator

Info

Publication number: CN85105176A
Application number: CN85105176.6A
Authority: CN
Inventors: 徐龙生
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-06-29
Filing date: 1985-06-29
Publication date: 1986-12-24
Also published as: CN1003383B

Abstract

A kind of automatic aerator that relates to tire inflation unit relates more particularly to the inflator that bicycle tyre is used.Inflator of the present invention is clamped on the axle skin of wheel, fixed gear is clamped on the wheel axle, inflator and input tooth axle are around the fixed gear revolution when wheel, and input tooth axle rotation, drive the crank-connecting rod piston action and to tyre inflation, Transmitted chains can be thrown off by gears to engage and disengage mechanism when not inflating.To tyre inflation, two minutes just can be with the gas abundance, and does not increase running resistance while travelling for inflation function of the present invention, and maintaining is convenient, and can increase the attractive in appearance of bicycle.

Description

Automatic aerator

A kind of automatic aerator that relates to tire inflation unit relates more particularly to a kind of automatic aerator of automatic wheel tire charger.

Traditional bicycle inflator has the hand-operated pump, foot-operated pump, electric inflater.The electric inflater volume is big, and mechanism's complexity costs an arm and a leg, and non-general family can purchase.Foot-operated inflator structure is perfect inadequately, can not popularize.So current hand-operated pump that the most generally uses.The hand pressing power that this class pump needs when inflating to cycle tyre is very big, old, weak, woman, unable the inflating of children, and person between twenty and fifty also can be sweating all over two tire sufficient gas when day hot.Concerning the cyclist, more inconvenient is, this hand-operated pump carries very inconvenience, when the bicycle of riding on the way tire poked by nail or the inner tube of a tyre comes unstuck when gas leakage, can bring very big trouble, especially to the bicycle of long-distance running, can not find the overhaul stand of tire patching inflation, just have to the walking that walks one's bicycle.The worker of state-owned One's name is legion is on and off duty by bike in present stage, and the family great majority do not have charger, sometimes morning is during cycle to work, find that cycle tyre does not have gas and can not ride, there is not the place of inflating again, just can only ride or the footslog working, cause working late, bring very burden.

Purpose of the present invention is exactly in order to solve above-mentioned these problems, design a kind of inflator that can be installed on the cycle wheel, at needs during to Tyre inflating, rotation that can tire is a power, drive this inflator to Tyre inflating, the transmission of wheel and inflator can be cut off after inflation finishes, not increase the resistance that travels.Because of this inflator is mounted on the wheel, rotate along with the rotation of wheel, so while bicycle can travel to Tyre inflating, all troubles of above-mentioned like this cyclist all have been readily solved.This inflator can install to bicycle easily and get on, and also can disassemble easily, and simple in structure, and low price does not exceed the price of hand-operated pump.

The objective of the invention is to realize by following means.A small-sized inflator, can be installed in easily by holding element on the axle skin of cycle wheel, there is a fixed gear to be fixedly mounted on the wheel axle, gas compressor has a toothed input shaft, this input shaft is linking an eccentric disc device that has eccentric shaft, connecting connecting rod on the eccentric shaft rotationally, connecting rod is connecting piston apparatus rotationally, piston apparatus is installed in the cylinder, air inlet, air-out apparatus that cylinder and one has safety valve communicate, and the air outlet hole in this device and the valve cock of tire are communicated with seal for pipe joints.There is an engaging and disengaging gear band tooth axle and the fixed gear that is fixed on the wheel axle can be meshed or disengagement, when needs during to tyre inflation, band tooth axle and the fixed gear that is fixed on the wheel axle can be meshed, when bicycle in motion, the inflator that is fixed on the wheel axle skin just rotates around fixed gear, the band gear revolves round the sun around fixed gear on the one hand, rotation on the one hand, in cylinder, do reciprocal motion and drive piston by the eccentric shaft on the eccentric disc, finish air-breathing and the effect of calming the anger by air-breathing and air-out apparatus, the pipeline of gas by be tightly connected air outlet and valve cock is pressed into the bicycle quick tyre cavity.After the inflation pressure off-rating, just back down safety valve to atmospheric exhaust, tire can explosion.After inflation is finished, stir engaging and disengaging gear, will be with tooth axle and fixed gear to throw off, inflator just quits work.

The advantage of automatic aerator of the present invention is tangible.It is small-sized, can be clamped on the axle skin of bicycle quick, and in the process of bicycle running, not needing to stop just can be to Tyre inflating.As long as change seldom money, just can increase a function of bicycle.A tire that does not have gas was ridden two minutes, just can be with the gas abundance, and the resistance that increases during inflation almost is not aware of the cyclist.This has brought special convenience to the cyclist, in case find no air, as long as stir turn-knob, just can inflate, especially run into tire and poke while travelling, or the tire gas leakage of coming unstuck, can also the limit inflation, travel as usual in the limit, until the tire patching again to the place that overhaul stand is arranged.The cyclist also can save arduous that present hand-operated inflates, and morning working or the night shift bicycle of going home does not have the sorrow that gas can not be ridden suddenly never again.The method that inflator device of the present invention is gone to the bicycle is very simple, does not need special instrument or special technical ability, and cyclist oneself can both install.The bicycle that this inflator has been installed can not bring any inconvenience to the cyclist, does not hinder the cleaning of tire patching operation or bicycle to clean yet, and steel wire, steel ring and tire can not wear and tear yet.Also can bring certain decorative beauty to bicycle.This inflator is simple in structure, and long service life is used reliable, cheap.

Fig. 1 is the front view of inflator of the present invention, and the part has been done to analyse and observe.

Fig. 2 is the plan view of inflator of the present invention shown in Figure 1.

Fig. 3 is that A shown in Figure 2 is to view.

Fig. 4 is Fig. 1 top amplification view.

Fig. 5 is that inflator is installed in the plan view on the wheel.

Fig. 6 is to use the schematic representation of the inflator of handle.

A most preferred embodiment of the present invention now is described in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, gas compressor of the present invention has a cylinder block (1), a guide plate (26) leans against on the shoulder of cylinder block (1) inner chamber in its inner chamber, also has a cylinder (23) to be pressed on the guide plate (26) the wall drive fit of the same cylinder block of cylinder (23) (1) inner chamber.There is a piston element (22) cylinder (23) lining, be made up of leather cup (24) and leather cup seat (25), a circle groove is arranged in the middle of the leather cup seat (25), leather cup (24) is stuck in the groove, the inwall of the outer wall of leather cup (24) and cylinder (23) movingly, reciprocatingly sliding.One long narrow hole is arranged on the guide plate (26), one flat connecting rod (3) passes long narrow hole, the one head connects with leather cup seat (25) rotationally with bearing pin (21), the bi-side of long narrow hole on the guide plate (26) and flat connecting rod (3) movingly, make connecting rod (3) can only be in pilot hole to-and-fro motion and can not rotate or crooked.The sidewall of cylinder block (1) has a sliding bearing (27), one end is that the gear shaft (28) of gear is through sliding bearing (27) lining with it movingly, it is fixedly connected with it that gear shaft (28) in cylinder block (1) chamber pierces in the center hole of eccentric disc (5) And, the side of eccentric disc (5) is extruded with an eccentric shaft (4), its journal offset Gear axis (28) one segment distances.Eccentric shaft (4) puts in the hole of connecting rod (3) rear end, and with it movingly, eccentric shaft (4) can rotate in the hole and move axially, and has groove (6) on eccentric disc (4) circumference.Loam cake (7) is screwed on cylinder block (1), is shaped on convex shoulder and groove on both mating faces, and convex shoulder just in time imbeds in the groove, and loam cake (7) and cylinder block (1) can correctly be located.Loam cake has an engaging and disengaging gear on (7), and this engaging and disengaging gear has a knob (12), and its axle pierces in the hole of loam cake, with it movingly.Overlapping shift fork (8), pressing plate (9) on the knob shaft, shelves Quan (10) are fixed on screw (11) and block pressing plate on the knob shaft end face and shift fork can not move axially, and the while also is stuck in knob on the loam cake (7), and it can only be rotated can not move axially.As shown in Figure 3, there is a long lumbar hole bottom surface of shift fork (8), be enclosed within on the knob shaft, also have two projectioies (29) (30) at the bottom of the shift fork, when turning knob (12), just driving pressing plate (9) rotates, one groove (31) is arranged on the pressing plate (9), above-mentioned projection (29) is just in groove (31), groove (31) rotates and just pushes away projection (29), and making shift fork (8) translation, the camming surface (32) on the pressing plate (9) contacts and is carved tightly with projection (29) simultaneously, has also just carved tightly knob (12).As shown in figure 12, also just drive eccentric disc (5) and gear shaft (28) translation during shift fork (8) translation, shift fork (8) is carved gear (28) can be located in axial position.

The air inlet air-out apparatus is fixedly attached to the front-end face of cylinder block (1), it has a middle liner plate (20) to cover on cylinder (23) top, in the groove during the top of cylinder wall embeds on liner plate (20) face, valve cap (19) be screwed cylinder block (1 〕 Shang And in liner plate (20) be pressed on the end face of cylinder (23).

The concrete structure of air inlet air-out apparatus as shown in Figure 4.On the middle liner plate (20) air-inlet cavity (34) and an outlet chamber (31) are arranged, they respectively communicate with cylinder (23), valve cap (19) is pressed on air inlet nozzle (36) and outlet nozzle (29) on air-inlet cavity (34) and the outlet chamber (31), and has rubber seal (35) to guarantee sealing.An one-way valve (33) (32) is respectively arranged in air-inlet cavity and the outlet chamber (34) (31), make air-inlet cavity (34) can only be air-breathing can not exhaust, make exhaust cavity (31) can only exhaust can not air inlet.Through hole (37) is communicated with the counterbore on air-inlet cavity (34) and the valve cap (19), has one to insure rubber (38) through hole (37) is covered in the counterbore, air inlet cap (40) pressure pad circle (39) and then will insure rubber (38) and be pressed on the through hole (37).When the cylinder pressure off-rating, pressurized air just backs down rubber (38) to airborne release, and the degree that compresses of regulating air inlet cap (40) just can be regulated the safety pressure of inflator.

As shown in Figure 1, there is a semi-circular recesses (15) bottom surface of cylinder block, have fine-tooth pattern on groove (15) face, shaft pressuring plate and semicircle groove (15) with semicircle groove match, the diameter of their semicircle groove equals the diameter of bicycle shaft skin, tighten screw (17) just inflator can be clamped in wheel the axle skin on, on cylinder block, also have simultaneously two screws (13), have a pressing plate to pass to be screwed into this two screw with screw behind the steel wire gas compressor more firmly is fixed on the wheel.The convex shoulder at guard shield (14) two snaps in the groove of valve cap (19) and loam cake (7) and cylinder block (1) links together.

As shown in Figure 5, fixed gear (41) is enclosed in and is clamped between vehicle frame (42) and the axle clamp head on the wheel axle (45), vertical for guaranteeing the fixed gear that clamps with wheel axle, there is a wedge can insert between fixed gear (41) and the axletree chuck perpendicularity that can regulate fixed gear and wheel axle.When turning knob (12) with tooth axle (28) when stretching out, axle tooth and fixed gear (41) engagement, when tooth axle (28) indentation, axle tooth and fixed gear (41) are thrown off.The number of teeth of fixed gear (41) is greater than the number of teeth of axle tooth.For easy for installation, fixed gear (41) can be made along straight line and be separated into two halves, installs on the bicycle and with screw they is connected into overall gear more later.

The outlet nozzle of inflator (29), valve cock (44) connected with connecting tube (43).

Above-mentioned cylinder block (1), valve cap (19), loam cake (7), knob (12), the available plastics compacting of leather cup seat (25) form, the available butyronitrile rubber of leather cup (24) is pressed into, 6 compactings of the available Reinforced Nylon of fixed gear (41), gear shaft (28) and sliding bearing (27) is available makes along the bronze end.

As shown in Figure 6, be another embodiment of the present invention.The structure of inflator is the same with above-mentioned inflator, does not exist together only to be to stretch out a support on the cylinder block, and the gear (46) that is being rotatably mounted on the support with handle meshes with band tooth axle (28).Like this, gas compressor just needn't be contained on the bicycle, as long as crank handle just can be to Tyre inflating.

Claims

1, a kind of automatic aerator that relates to tire inflation unit, it is characterized in that it has a cylinder part, one piston element is arranged in the cylinder part, piston element is connected with a connecting rod, this connecting rod has a band tooth axle, cylinder part communicates with turnover gas parts that have safety valve again, and the outlet nozzle of these parts and the valve cock of tire are communicated with the connecting tube sealing.Described cylinder part is fixed on the axle skin of wheel with holding element, be fixed on the wheel axle and can not rotate with also having certain tooth axle vertical axis, when wheel, the cylinder part and the band tooth axle that are fixed on the skin just revolve round the sun around fixed gear, be with the rotation of tooth axle simultaneously, drive connecting rod and drive piston to-and-fro motion and to Tyre inflating in cylinder again.

2, inflator as claimed in claim 1 is characterized in that described inflator also has an engaging and disengaging gear, band tooth axle can be meshed with fixed gear or throw off to be connected or to cut off the rotation of wheel and gas compressor.

3, inflator as claimed in claim 2, it is characterized in that described cylinder part has a cylinder block (1), a guide plate (26) leans against on the shoulder of cylinder block inner chamber, the internal chamber wall of cylinder (33) and cylinder block (1) is tightly joined and is closed And and be pressed on the guide plate (26), and a long narrow hole is arranged on the guide plate (26).

4, inflator as claimed in claim 2, it is characterized in that described piston element is made up of leather cup (24) and leather cup seat (25), one circle groove is arranged in the middle of the leather cup seat (25), and leather cup (24) is stuck in the groove, and the inwall of the outer wall of leather cup (24) and cylinder (23) movingly.

5, inflator as claimed in claim 3, it is characterized in that described brace and connecting rod framework, there is a flat connecting rod (3) to pass guide plate (26) and goes up long and narrow hole, connect rotationally with leather cup seat (25) with pin (21), the bi-side of long narrow hole on the guide plate (26) and flat connecting rod (3) movingly.The sidewall of cylinder block (1) has a sliding bearing (27), band tooth axle (28) is through sliding bearing (27) lining with it movingly, fixing eccentric disc (5) for one of the tooth axle, the side of eccentric disc (5) is extruded with an eccentric shaft (4), its journal offset tooth axle (28) axis one segment distance, eccentric shaft (4) puts in the hole of connecting rod (3) rear end, with it movingly, has groove (6) on the eccentric disc circumference.

6, inflator as claimed in claim 5, it is characterized in that engaging and disengaging gear has a knob (12) that can rotate in loam cake (7) hole, overlapping shift fork (8) on the knob shaft, pressing plate (2), shelves Quan (10) the restriction pressing plate (9) and the shift fork (8) that are fixed on the knob shaft end face can not move axially, the bottom surface of shift fork (8) has a long lumbar hole to be enclosed within on the knob shaft, also have two projectioies (29) (30) at the end of shift fork (8), one groove (31) is arranged on the pressing plate (9), projection (29) is embedded in groove (31) lining, turning knob (12) just drives pressing plate (9) and rotates, groove (31) just pushes away projection (29) and makes shift fork (8) translation, camming surface (32) on the pressing plate (9) contacts with another projection (30) and pressing plate is carved tightly simultaneously, two pin of shift fork (8) snap in the groove (6) of eccentric disc (5), the translation of shift fork (8) also drives eccentric disc (5) and gear shaft (28) translation, thereby makes tooth axle (28) and fixed gear (41) engagement or disengagement.Carving of shift fork (8) tightly also makes tooth axle (28) axially can locate.

7, inflator as claimed in claim 2, it is characterized in that passing in and out the front-end face that device of air is fixed on cylinder block (1), middle liner plate (20) covers on cylinder (23) top, in the groove during the top of cylinder wall embeds on liner plate (20) face, valve cap (19) be screwed cylinder block (1) go up And in liner plate (20) be pressed on the cylinder end face, on the middle liner plate (20) air-inlet cavity (34) and an outlet chamber (31) are arranged, they respectively communicate with cylinder (23), valve cap (19) is with air inlet nozzle (36) and outlet nozzle (25) is pressed on air-inlet cavity (34) and the last And of outlet chamber (31) has rubber seal (35) sealing, an one-way valve (33) (31) is respectively arranged in air inlet and the outlet chamber (34) (31), make air-inlet cavity (34) can only be air-breathing can not exhaust, make exhaust cavity (31) can only exhaust can not air inlet.

8, inflator as claimed in claim 7, it is characterized in that passing in and out and also have safety installations in the device of air, it has the counterbore on through hole (37) connection air-inlet cavity (34) and the valve cap (19), there is an insurance rubber (38) that through hole (37) is covered in the counterbore, air inlet cap (40) pressure pad circle (39) and then will insure rubber (38) and be pressed on the through hole (37).When the cylinder pressure off-rating, pressurized air just backs down rubber (38) to airborne release, regulates the degree that compresses of air inlet cap (40), just can regulate safety pressure.

9, inflator as claimed in claim 1, it is characterized in that described holding element is the groove (15) that there is a semicircle bottom surface of cylinder block (1), have fine-tooth pattern on groove (15) face, shaft pressuring plate (16) with semicircle groove is connected on the cylinder block (1) with screw (17), the axle skin just is sandwiched in this two groove, tighten screw (17), just inflator has been clamped on the skin.

10, inflator as claimed in claim 9 is characterized in that a block pressur plate in addition can pass behind the steel wire with screw-driving in the screw (13) of (1), gas compressor more firmly to be fixed on the wheel on cylinder block.

11, inflator as claimed in claim 1 is characterized in that described fixed gear (41) quilt along center line in two, links into an integrated entity with screw then again.The perpendicularity that one wedge can regulate fixed gear (41) and wheel axle (45) are arranged.

12,, it is characterized in that cylinder block (1), valve cap (19), loam cake (7), knob (12), the available engineering plastics compacting of leather cup seat (25) form as claim 1,2,3,4,5,6,7,8,9,10,11 described inflators.Available Reinforced Nylon 6 compactings of fixed gear (41), gear shaft (28) and the available powder of sliding bearing (27) are made along gold.

13, inflator as claimed in claim 1, the number of teeth that it is characterized in that fixed gear (41) is greater than tooth axle (28) number of teeth.

14, as claim 1,2,3,4,5,6,7,8,9,10,11 described inflators.It is characterized in that stretching out a support on the cylinder block, the gear (46) that is being rotatably mounted on the support with handle is meshed with band tooth axle (28), like this as long as crank handle just can be to tyre inflation.