CN2225555Y - Pedal inflator - Google Patents

Abstract

The utility model discloses a pedal inflator which is mainly composed of a base, a lever, a cylinder, a piston and an air reservoir. The inflator has the advantages of big outputting air pressure, high efficiency, and labor saving. The utility model is suitable for the inflation of various pedal cycles, and even the car. The operation and the portability are convenient, and the problems of low air pressure and small air output of the common pedal inflator are solved.

Description

A kind of foot-operated inflator

The utility model relates to a kind of foot-operated inflator.

The foot-operated inflator of people's use at present, be the direct press type inflator, this inflator is made up of cylinder, piston, lever, foot treadle and base plate, cylinder vertically is placed on the intermediate section position of lever, piston stroke is short, in the cylinder gas receiver can't be set, thereby the gas air pressure of getting is extremely low, inflation to bicycle is difficult, and is too far behind to catch up especially as for motorcycle, car.Yet because foot-operated inflator is easy to use, and be difficult for clothing is made dirty, the air pressure that therefore how to improve foot-operated inflator has become people's problem anxious to be solved.

The purpose of this utility model is to provide that a kind of output pressure is big, efficient is high, use is laborsaving, easy to carry, the foot-operated inflator that is applicable to various bicycles even car inflation.

For achieving the above object, foot-operated inflator of the present utility model is by base, lever, foot treadle, cylinder, cylinder head and the piston that is embedded with seal ring are formed, one end of lever and base are hinged by bearing pin, the other end and foot treadle are fastenedly connected, an one-way valve is housed on the closed end inwall of piston, and connecting a gas receiver at the opening end of piston, it is one that gas receiver is fastenedly connected with the cylinder head that has air outlet hole, there are a lid handle and base hinged on the closed end exterior edge face of cylinder head, lever has two, they are symmetrically distributed in the both sides of cylinder cylinder, and it is hinged with cylinder, be used on the bearing pin of hinged base and lever torsion spring being housed, the cylinder partial of lever is stretched in the end of torsion spring.

Because this structure that the utility model adopts, be actually a kind of boosting mechanism of lever and crank guide rod combination, when people give clockwise moment of lever on foot treadle, cylinder is then given anticlockwise moment of lever, along with the angle of cylinder and lever constantly reduces, cylinder action power perpendicular to lever on lever reduces gradually, promptly this anticlockwise moment reduces gradually, thereby the power that people act on the foot treadle also can reduce gradually, and it is different fully that this and common inflator are got to terminal hard more effect more.This structure of the present utility model is not only laborsaving, and the air pressure height of output, and tolerance is many.Because this structure can be provided with gas receiver to greatest extent, its volume is suitable with common Pedal inflator again, Gu have advantage easy to carry equally.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the plan view of the foot-operated inflator of the utility model.

Fig. 2 is the plan view of Fig. 1.

In Fig. 1, a piston 2 and a gas receiver 3 are arranged in the cylinder 1.The two ends of this gas receiver 3 with epoxy resin glue respectively with piston 2 and cylinder head 4 strong bond, lid handle 6 is also bonding with cylinder head 4 in this way, and then it is hinged with base 7, upper surface at base 7 has one and cylinder 1 shape corresponding grooves, make cylinder 1 and cylinder head 4 can fall the people wherein, help reducing inflator and take up space.In conjunction with Fig. 2 cylinder 1 cylinder both sides are hinged on one side symmetrically as can be seen lever 8, one end of this lever 8 is pulled 9 and is fastenedly connected with foot-operated by screw, the other end is hinged by bearing pin 10 and base 7, on bearing pin 10, be with a torsion spring 11, the cylinder of lever 8 is stretched at the two ends of torsion spring, for resetting, lever 8 is provided with, in order to prevent that inflator from getting rusty, cylinder 1 adopts engineering plastics, piston 2 and gas receiver 3 all adopt stainless steel, when not bestowing power on the foot treadle 9, the utility model is in double dot dash line position among Fig. 1, and be full of atmosphere in the cylinder 1 this moment, when being subjected to people's active force on the foot treadle 9, gas in the cylinder 1 is compressed, one-way valve 5 is opened, and gas enters in the gas receiver 3, the output of the air outlet hole on the cylinder head 4 then.Along with the angle between cylinder 1 and the lever 8 reduces gradually, cylinder 1 acts on that the component perpendicular to lever 8 reduces gradually on the articulating point, promptly this moment reduces gradually, the moment at foot treadle 9 places that then contend with it can reduce thereupon, be that the power that people act on the foot treadle 9 can reduce, because the arm of force does not all change.Therefore the tolerance of the utility model output is many, the air pressure height, and also laborsaving.Inflator can hang over the chain on the base 7 12 on the foot treadle 9, to be convenient for carrying under obsolete situation.

The utility model compact structure portably uses conveniently, exports large-mindedly, and air pressure height, and laborsaving can be used for the inflation of various bicycle tires, even can inflate to car tires, has a extensive future.

Claims (4)

1, a kind of foot-operated inflator, by base, lever, foot treadle, cylinder, cylinder head and the piston that is embedded with seal ring are formed, one end of lever and base are hinged by bearing pin, the other end and foot treadle are fastenedly connected, it is characterized in that on the closed end inwall of described piston ︱ 2 ︱ one-way valve ︱ 5 ︱ being housed, and connecting gas receiver ︱ 3 ︱ at the opening end of piston ︱ 2 ︱, gas receiver ︱ 3 ︱ are fastenedly connected with cylinder head ︱ 4 ︱ that have air outlet hole and are one, there are lid handle ︱ 6 ︱ and base ︱ 7 ︱ hinged on the closed end exterior edge face of cylinder head ︱ 4 ︱, lever ︱ 8 ︱ have two, they are symmetrically distributed in the both sides of cylinder ︱ 1 ︱ cylinder, and it is hinged with cylinder ︱ 1 ︱, be used on bearing pin ︱ 10 ︱ of hinged base ︱ 7 ︱ and lever ︱ 8 ︱ torsion spring ︱ 11 ︱ being housed, the cylinder partial of lever ︱ 8 ︱ is stretched in the end of torsion spring ︱ 11 ︱.

2, foot-operated inflator according to claim 1, the upper surface that it is characterized in that base ︱ 7 ︱ have one recessed, can make the cylinder people's groove wherein that falls.

3, foot-operated inflator according to claim 1 and 2 is characterized in that chain ︱ 12 ︱ that have can hang on foot treadle ︱ 9 ︱ on base ︱ 7 ︱.

4, foot-operated inflator according to claim 3 is characterized in that cylinder ︱ 1 ︱ adopts engineering plastics, and piston ︱ 2 ︱ and gas receiver ︱ 3 ︱ adopt stainless steel.