CN2147979Y

CN2147979Y - Automatic high pressure inflating pump for bicycle

Info

Publication number: CN2147979Y
Application number: CN 92244677
Authority: CN
Inventors: 王建福
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-24
Filing date: 1992-12-24
Publication date: 1993-12-01
Anticipated expiration: 2002-12-24

Abstract

The utility model relates to an automatic high pressure inflating pump for a bicycle, which belongs to the product of life tool class, comprising a push-pull rod, a plunger, a pump body and an eccentric wheel, which is characterized in that the utility model can automatically inflate the bicycle tube in the rotation of the bicycle wheel. The utility model is also provided with a pressure limiting device to keep the pressure and limit the pressure, which is convenient for disassembly and assembly, an inflated piston with two leather rings and a high pressure air cylinder are specially arranged, and the disadvantages of large inflation resistance and poor inflation closeness because the caliber of the existing inflating pump is too thin are overcome.

Description

Automatic high pressure inflating pump for bicycle

The utility model relates to a kind of bicycle high pressure automatic inflation pump of automatic inflation usefulness, belongs to life instrument series products.People generally use manual pump to inflate to bicycle at present, waste time and energy during use, and the CN912298529 patented technology of the Decree of Patent Office of China has solved the problem of using and carrying inconvenience.Its shortcoming is that gaseous tension is little, and the inflation resistance is big, piston and the big and unbalance stress of the interior wall friction of tube, and the apron on the piston is fragile, the inflation poor effect, service life is short.

It is big that the purpose of this utility model provides a kind of inflation pressure, and the inflation resistance is little, inflation is sealed, and the friction force of piston and cylinder inner wall is little and can inflate the bicycle high pressure automatic inflation pump of pressure limiting pressurize in riding automatically.

The purpose of this utility model can reach by following measure:

It is made up of pull bar, piston, the pump housing, eccentric wheel, pull bar is connected with piston, one pin that can push dial-out is arranged on the pull bar, eccentric hook and pin join, the bicycle tire tube valve links by gas piping and pump housing gas transmission mouth, outlet nozzle is established a limiting valve side by side, and a spring leaf individual event valve is arranged in pump housing inside, and gas enters air receiver thus.

Below in conjunction with embodiment and accompanying drawing the utility model is further described:

Accompanying drawing the 1, the 2nd, two lateral plans of inflation pump;

Accompanying drawing 3 is eccentric structural representations in the inflation pump;

Accompanying drawing 4 is scheme drawings of the gas piping that links to each other with bicycle of inflation pump;

Accompanying drawing 5 is structural representations that inflation pump links to each other with bicycle.

The implication of each sequence number among the figure:

1, the pump housing; 2, eccentric wheel; 3, push rod; 4, piston; 5, apron; 6, outlet nozzle; 7, limiting valve; 8,9, air receiver; 10, one-way cock; 11, eccentric wheel hook; 12, eccentric shaft; 13, gas piping; 14,15, gas transmission mouth;

Embodiment:

Unload wheel during use, axletree is transferred long 5 millimeters left, and eccentric wheel 2 is transferred to maximum eccentric away from car after poppet top, the rotating disk concave surface to the right with screw with eccentric shaft 12 and axletree suit, the hook 11 of eccentric wheel 2 links to each other with the push rod 3 of inflation piston 4, and the

gas transmission mouth

14,15 at gas piping 13 two ends is connected on the tire tube valve of gas transmission mouth 6 on the pump housing 1 and bike tire.Three screws of entire pump body and function are with fixing tight by two nearest crossed spokes of tire tube valve, driving eccentric wheel when cycle wheel rotates rotates, further drive two the apron pistons 4 that are equipped with that link to each other with push rod 3 and do front-rear reciprocation movement, one-way cock 10 was opened when piston advanced, gas enters air receiver 8,9 form high pressure gas, import in the bike tire by gas piping again, in the tire during gas superpressure, discharge by limiting valve 7, when tire need not inflated, eccentric wheel can be colluded 11 and take off to collude or will turn on and get final product, thereby reach the purpose of this utility model with tire tire tube valve bonded assembly gas transmission mouth.

Claims

1, a kind of bicycle high pressure automatic inflation pump is made of push rod, piston, the pump housing, eccentric wheel.It is characterized in that cycle wheel rotates drive and does front-rear reciprocation movement by the piston that push rod is connected with eccentric wheel, be Tyre inflating.

2, according to claims 1 described bicycle high pressure automatic inflation pump, it is characterized in that gas enters air receiver and forms high pressure gas, import tire through gas piping.

3, according to claims 1,2 described bicycle high pressure automatic inflation pumps, it is characterized in that air receiver is provided with limiting valve, limiting the interior gaseous tension of tire is 3.5-4 barometric pressure.

4, according to claims 1,2,3 described automatic inflation pump for bikes, it is characterized in that inflating two rubber, apron are housed on the piston, increase gas filed closure.