CN2217554Y - Fixed inflater for bicycle - Google Patents

Abstract

The utility model relates to an inflator which is fixed on the upright beam of a bicycle. The inflator can inflate the tyre anywhere at any time. The utility model has the advantages of portability, convenient usage, high usage rate of compressed air, and is difficult to lose. Concurrently, the bicycle which is assembled with the device can form a unit without any rebuilding. The connection of a collapsible handle, an inflator body and an upright beam and the connection of a sealing nut which is arranged on the head end of an air hose and a special bolt solve the problem of inconvenient carrying of a traditional inflator.

Description

Bicycle fixed type inflator pump

The utility model relates to bicycle inflator.Design for the bike tyre inflation for solving whenever and wherever possible.

Except going the inflation, be that oneself respectively is equipped with inflator pump when past people is the bicycle inflation, be the needs of inflation of tire whenever and wherever possible but still can't resolve to the shop that repairs.Once the Inflator mounted on bicycle that occurred before this---support on the other hand, inflate on the other hand, not only inconvenience but also not laborsaving and easily lose.It is reported, there is early stage the people to design bicycle " automatically " inflation air pump.Though this design has its " automatically " attribute, bicycle is intended to inflation, must overcome the normally work done of additional friction that air pump brings to bicycle.It is difficult to solve the gas filed needs of short distance simultaneously.This device is mixed behind air pump and the cam not only very burdensome but also be not suitable for the inflation needs of rise lock car and derailleur on the bicycle spoke on the axletree.

Some later-model gas filled device design now, its advanced feature is often replaced by lengthy and tedious device design or high cost, so that be accompanied by the impracticable characteristics that are difficult to overcome all the time.For this reason, the chief who uses for reference existing procucts, on the basis of improving, improve, innovating, I designed pump-up device of new generation " with car fixed type inflator pump " in 1992.And obtained the national patent (patent No.: 92202557.6) on December 30th, 1992.This utility model can be easy to carry whenever and wherever possible for the bicycle inflation, and is easy to use, is difficult for losing, more laborsaving than traditional Inflator mounted on bicycle.But production practice by leading portion and cycle manufacturer man's message feedback, it has several the problems that have much room for improvement to need to solve: 1. the metal piece cost is higher and Plastic Parts intensity is difficult to reach operating needs; 2. the qi of chong channel ascending adversely stroke is smaller; 3. woman style princess's car is placed the sebific duct position and is difficult to determine; 4. show slightly loaded down with trivial details in the design.Therefore, " with car fixed type inflator pump " will be accepted further perfect and transform, and to improve the qi of chong channel ascending adversely stroke, reduce the Applicable scope of cost cost and expansion different automobile types.

Structure of the present utility model is such: it is made up of appendix, piston, piston rod, handle, zero type circle, inflator base (gas unidirectional valve), air hose, special shaped screw bolt, sealing nut etc.It is characterized in that it has is fixed on clip on the bicycle with inflator pump; And above-mentioned handle is folding.Inflator institute fixed position becomes the short any methods preceding, left and right three installation sites of selecting of its upright beam length of looking also by fixed installation position, former " with car fixed type inflator pump " Li Liang the place ahead.And has a check valve apparatus that prevents that pressure gas from refluxing.

(Fig. 1 is this utility model assembly figure below in conjunction with accompanying drawing; Fig. 2 is inflation mode figure; Fig. 3 is the coupled condition figure of this utility model and bicycle).Describe structure of the present utility model and using method in detail:

First, by cylindrical shell, handle, handle base, piston, piston rod, zero type circle, inflator base (gas unidirectional valve), air hose, sealing nut, special shaped screw bolt, the bicycle fixed type inflator pump that clip etc. are partly formed, its concrete structure and main effect are: 1. handle (1) is that a cylindric and end has half circular metal plate to protrude from integrative-structure outside the handle, metal sheet is connected with handle base (2) pin-and-hole, function is to be intended for bicycle when inflation when the operator pulls handle, makes handle (1) be spent angles with 180 of inflator pump and become an angle of 90 degrees (3) shape by original.2. handle protrudes semicircle metal sheet one end, and intracavity of handle is hollow structure (4), its role is to make handle activity to overcome the problem that can't rotate that cause at the rotation dead angle freely on handle base.3. the handle base upper end is connected with handle, and the lower end is connected with piston rod, and function is to drive the piston working in reciprocating mode.4. piston is that a cylindric and side face has the groove of slightly being wider than zero type circle cross section diameter, and there are several air inlet blind holes the piston bottom surface, and blind hole is deep to the whole width of groove and the blind hole central row is listed on the circumference of groove groove face.Its principle of work is: when the piston upward movement, zero type circle is close to bottom portion of groove, because of zero type circle cross section diameter less than recess width, gas just enters cylindrical shell from zero type circle top gap location by several blind holes like this.When piston moved downward, zero type circle was close to groove top, with blind hole air inlet place complete closed, just produced gaseous tension when piston moves downward like this.The inflator base be the base of cylindrical shell be again a gas unidirectional valve gear, it is made up of base shell (5) and check valve valve body (6), spring and ball are housed in the valve body, effect is that the unlikely generation of pressurized air that piston is pressed in the sebific duct refluxes, and improves the degree of utilization of pressure gas to greatest extent.6. usually one of air hose is connected with cylindrical shell base (gas unidirectional valve), an end is connected (Fig. 3) with special shaped screw bolt.When needs were done mutually, the operator only needed gas piping head end sealing nut is screwed off from special shaped screw bolt, and the gas filed beginning valve of taking turns of the sealing nut and the preparation of gas piping head end is spun.Then handle is pulled back with cylindrical shell be 90 degree states, hold handle upper and lower fill to beat get final product (Fig. 2).At this moment handle just drives handle base and piston rod, piston work done up and down reciprocatingly constantly charges into tire with pressure gas.

The second, for solving the contradiction that inflator pump inconvenience is carried and easily lost, the inflator upper/lower terminal has snap-ring groove (7a, 7b).Earlier a clip is crouched in groove during installation, another clip is stuck on the upright beam of bicycle then, connects with screw after the nut bore on two clips is just matching, and inflator just firmly is positioned by the upright beam.The upper and lower clip installation method of inflator is the same.

The 3rd, under situation about need not usually to inflation of tire, air hose is attached on the bicycle cant beam.By the sealing nut of air hose head end be fixed on cant beam on be connected with the special-shaped stove bolt (8) of tire valve with bore, air hose just invests on the car steadily.This installation and design has not only solved practicality, and convenient, portable problem attractive in appearance have increased the innervation during bicycle is advanced simultaneously and do not stayed the vestige of painstakingly chiseling and carving.

Injection moulding is melted in the production of this utility model, and blanked part and shaping pipe are in one, and be with low cost, and extensive market has certain popularizing value.

Claims (4)

1. bicycle fixed type inflator pump of being made up of parts such as cylindrical shell, piston, piston rod, handle, zero type circle, inflator base, gas unidirectional valve, air hose, sealing nut, special shaped screw bolts is characterized in that it has inflator pump is fixed on clip on the bicycle; And above-mentioned handle is folding; The gas unidirectional valve gear that prevents that pressure gas from refluxing is arranged.

2. bicycle fixed type inflator pump as claimed in claim 1 is characterized in that it is fixed on the preceding cant beam of bicycle in addition, is used for fixing the special shaped screw bolt of air hose.

3. bicycle fixed type inflator pump as claimed in claim 1 is characterized in that, above-mentioned inflator pump is fixed on clip totally two covers on the bicycle, is placed on the upper and lower of inflator pump respectively, and embeds and hold in the snap-ring groove of clip.

4. bicycle fixed type inflator pump as claimed in claim 1 is characterized in that above-mentioned gas check valve valve body embeds in the air cylinder base.

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