CN2264260Y - Dual-O shape piston dual-chamber booster inflator - Google Patents

Abstract

The utility model relates to a dual-O-shaped piston dual-chamber booster inflator for inflating bicycle tyres, motorcycle tyres, boosted vehicle tyres, gas-oil furnaces, balls, etc. The dual-O-shaped piston dual-chamber booster inflator is provided with two O-shaped rings which are inlaid in a groove of an Inflator piston. Lubricant grease is filled in the middle of the two O-shaped rings. Booster chambers are arranged in cylinders by thin pipes. When inflating, a piston with the two O-shaped rings is used for pushing air into a one-way check valve. Pressurizing air enters a pressurizing plug from the one-way check valve, and then is pressed into in a pressurized body by a rubber pipe. The structure is especially suitable for a portable inflator. The utility model has the advantages of large pressure, portability, and beautiful appearance; the utility model is convenient to carry, and the performance is superior to common artificial manual inflators.

Description

Two O shape circle pistons, double shell supercharging pump

The utility model pump is a kind of inflatable tool of gas pressurized that is, relate to a kind of improvement design of pump, two O shape circle pistons, bitubular three-dimensional-structure have particularly been adopted, it can make and be inflated the increase of object pressure, as bicycle tyre, motorcycle tire, power-assist tire, gas and oil stove, air cushion, ball etc., characteristics such as feel is light when inflating in addition simultaneously, the inflator life-span is long.

In the technology of existing pump manually, do not find the product identical as yet with the present invention, the pump manually that existing market is sold, can be divided into leather cup formula band supercharging bag and not with two types pump of supercharging bag, the pump of not supercharging bag, when inflating below the pressure very little (0.17MPa is only arranged), be difficult to bicycle quick nausea abundance is not reached the standard-required of bicycle tyre (0.25-0.3MPa) inflation pressure; The pump of band supercharging bag, supercharging is packaged in the outside, pump cylinder lower end, and benzene is heavy on the structure, and the leather bucket in the cylindrical shell uses the wearing and tearing easily of permanent back simultaneously, so working life is short.

For addressing the above problem: the purpose of this utility model is exactly to be to overcome the above-mentioned shortcoming of pump manually: a kind of pair of O shape circle piston, double shell supercharging pump are provided: it is embedded on the piston seat by two O shape circles, changed leather cup formula piston structure, the pumping chamber is located in the cylindrical shell of pump, is specially adapted to the light inflator that needs pressure big.

The utility model is achieved in that two O shapes are enclosed pistons, double shell supercharging pump is made up of inflator body, air cylinder cover, inflator cap, piston seat, O shape circle, two (or several) O shape circles are embedded in the groove of pump piston, lubricant grease is coated in centre at two O shape circles, the utility model can also be realized like this: a thinner pipe is set as the pumping chamber in the inflator body of pump, forms the supercharging pump.

Accompanying drawing is the structure sectional view of supercharging pump.

Below in conjunction with accompanying drawing, be further elaborated concrete condition of the present utility model.

In the structure cut-away view of the present utility model: 1-inflator body, 2-rubber pipe, 3-pressurization cylinder, 4-valve screw, 5-spring, the non-return spool of 6-, the non-return valve opening of 7-, 8-coupling nut, 91,92-O shape circle, 10-piston seat, 11-air cylinder cover, 12-inflator base, 13-connecting tube, 14-inflator cap, 15-lubricant grease.

Referring to figure: the utility model is by inflator body 1, air cylinder cover 11, inflator cap 14, the pump outer cylinder body of forming, the design of pressurization cylinder 3 usefulness weldless tubes is in inflator body 1, two O shape circles 91,92, be embedded in the groove of piston seat 10, when inflating: because piston seat 10 drives two O shape circles 91,92 push air in the check valve 7 of piston seat 10 center holes, make air compression, through non-return spool 6, spring 5 valve screws 4, enter in the pressurization cylinder 3, in the pressurization cylinder 3 behind the supercharging airs through connecting tube 13, rubber pipe 2, with attachment cap 8, with inflate after the tire that is inflated is connected.

Claims (3)

1, a kind of supercharging air-inflating tube; By inflator body, air cylinder cover, inflator cap, piston seat, two supercharging pumps that O shape circle pumping chamber forms, it is characterized in that two O shapes are enclosed in two grooves that are embedded in the piston seat.

2, supercharging pump according to claim 1 is characterized in that: the groove number that O shape circle is embedded in the piston is two or many.

3, supercharging pump according to claim 1 is characterized in that: have a thinner pipe to do the pumping chamber in the stack shell of pump.