CN2099858U

CN2099858U - Combined inflater

Info

Publication number: CN2099858U
Application number: CN 91202149
Authority: CN
Inventors: 鄢全海
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-02-04
Filing date: 1991-02-04
Publication date: 1992-03-25

Abstract

The utility model discloses a combined inflator. Two barrels with equal length and unequal diameter are concentrically sheathed with each other to form an inside air-chamber and an outside air-chamber, wherein, a circular piston and a ring-shaped piston, which have three piston-rods, which are arranged along a plane containing the axis passing through the center of the circle, and whose upper parts are connected with a handle, are placed. Air channels of the inside air-chamber and the outside air-chamber are connected with each other through thereof valves, a public air storage bottle and an air hose, and are communicated with the charged air outside the two barrels. The two air channels between the two air-chambers and a one-way valve are connected in parallel with an adjusting valve, to control the flow direction of the compressed air inside the two air-chambers. The uniform strain and frequency of the whole inflating process being obtained so that labour-saving and high-efficiency are provided, the utility model is suitable for users with different physical strength to inflate the elastic inflating-tyres of the general vehicles in common use.

Description

Combined inflater

The utility model relates to a kind of combined type pump of physical propellant pump, mainly be that two pipe groups are incorporated on the structure of piston and gas transmission improved manpower inflatable tool in addition, be suitable for general inflating tyres of vehicles commonly used, it comprises following several characteristic: connect on the piston rod handle, down connect piston and piston thereof can in having the garden cylindrical cavity, do about the pipe of periodic motion and the one-way cock that is attached thereto, air hose, pedestal etc.

Patent Office of the People's Republic of China discloses a kind of foot-operated single armed bitubular high-pressure pump August 22 nineteen ninety in CN2060823U, can do to survey usefulness with car test, and inflation power is up to 18Kg/CM ²Its formation is to drive identical inflator two-tube arranged side by side for suitable foot-operated power designs an intermediate mechanical transmission device, and inflation has excessive overweight sense if this pump is as bicycle, does not secondly also have improvement on inflator structure.Patent Office of the People's Republic of China discloses a kind of two-tube concentric gas cylinder in CN85203042U on August 27th, 1986 in addition, its formation is to be connected with handle and can to make to have between the outer concentric tube ground of up and down periodic motion and outer wall of inner tube location intake duct and the suit free gap is arranged, there is valve interior pipe upper end, outer tube (suitable here piston) is when pressing down, back down valve after gas in the outer tube reaches to a certain degree by compression and enter interior pipe, reach the inflation purpose then.Above-mentioned two kinds of inflators its piston area in the inflation overall process does not become, thus inflation firmly and on the frequency inhomogeneous not smoothly, light earlier back occurs and weigh first quick and back slow.

The purpose of this utility model is to avoid above-mentioned prior art deficiency and adopts two-tube double-piston to utilize regulating switch valve can make piston area variable and produce three kinds of different working staties, reach firmly and frequency evenly, use and rationally make things convenient for, carry light, as to be more suitable for muscle power and physical different person's uses a kind of combined type pump.

The utility model can reach by following measure: but two pipes that diameter differ isometric two are nested with one heart, the cross section that is enclosed between the inwall that the big person of title diameter is an outer tube, the little person of title diameter is interior pipe, outer tube and the outer wall of interior pipe is that the integral body of garden annular is that the Cylinder shape space that hollow Cylinder shape cavity and interior pipe are enclosed constitutes 2 air chambers jointly, be equipped with annular piston and garden shape piston respectively, the annular piston area can be two times of garden shape piston area.The interior Guan Yigen piston rod of equal length and two piston rods of outer tube totally three cross on the plane of concentric shafts one and to arrange, go up together with one handle, connect two-piston down, the gas of inside and outside air chamber can be respectively from air vent separately by one-way valve communicate with gas cartridge, air hose, connect a regulating switch valve between 2 air chambers and the one-way valve, regulate this valve can make respectively in air chamber or outside air chamber communicate with the external world or all stop up, form the combined type pump with this.

The accompanying drawing drawing is a combined type pump plan view.

Now be described in further detail in conjunction with (accompanying drawing 1) embodiment:

With the foot-operated 11 inflator pedestals 12 that link to each other on constituted the inside and outside 2 air chambers that outer tube annular piston 9 and interior pipe garden shape piston 10 can pump therein with the less concentric suit mutually of interior pipe 6 equal lengths of bigger outer tube 5 of diameter and diameter, two outer tube piston rods 7 of equal length and interior pipe piston rod 8 upper ends of going up string spring 2 connect handle 1 altogether, air cylinder cover 4, the lower end connects garden piston 10 and annular piston 9 respectively, tie point is on the plane of the garden of mistake axle, thereby formation movement parts, pipe one-way valve 15 and outer tube one-way valve 17 enter gas cartridge 16 and reach the inflation purpose by air hose 18 and attached attachment cap 19 duck bill clips 20 thereof again the pressurized gas of inner and outer pipes by passage separately and in backing down, except that above-mentioned two one-way valves, also connect a regulating switch valve 14 interior mistress and one-way valve interchannel, two passages and at an angle to each other are arranged on the valve body, rotate this valve and can make interior air chamber, outer air chamber communicates with the external world respectively or all stops up, and makes piston produce three kinds of different working staties:

When modulating valve transfers to inside and outside air chamber when all stopping up with the external world, during past the pressing down of pump handle this moment, the pressurized air of inside and outside air chamber through separately passage, back down one-way valve and enter gas cartridge, enter the tire that is inflated, the purpose that reaches inflation at last.This moment, piston area maximum, inflation were most effective.

Pressurized air outside air chamber is in communication with the outside, has only at this moment through gas distribution channel, adjusting valve opening in modulating valve transfers in the air chamber backs down one-way valve and enters gas cartridge, reaches the inflation purpose.

Outside modulating valve transfers to air chamber logical through gas transmission, regulate valve opening be in communication with the outside, in like manner have only in pressurized air in the air chamber back down one-way valve and enter gas cartridge, reach the inflation purpose.Inflate the piston area minimum this moment, so the most laborsaving.

Because the utility model adopts two-tube concentric double-piston to utilize modulating valve to make the pressurized gas in the 2 air chambers not only capable of being combined but also can decompose, playing in the inflation overall process has three kinds of practical operations available, it is large, medium and small three grades of aeration quantity, to user a little less than also persistent erection being arranged on the muscle power three grades, the tire that is inflated in the inflation overall process internal pressure in time also performance weak in strong three grades of situations, promptly require user's application of force to rise gradually, so under the fixing a certain people's of inflation condition, be inflated under the definite situation of tire such as flatcar tire, the use of fit adjustment valve flexibly in the inflation overall process, can very easily finish the task of inflating rhythmically, men and women, old and young follow one's bent and have a role to play.The utility model is the suit gained in addition, and is also smaller and more exquisite from volume, and materials are few, also less demanding to valve mechanism, is convenient to make and portably use.

Claims

1, a kind of combined type pump, include the upper end have the lower end, slit be connected with valve, air hose inflator and with this inwall mutually embedding and do along barrel about the cycle move be fixed on piston by the piston-rod lower end that connects under the handle, wherein inflator can be one connect or two be connected to the same handle, valve, gas distribution channel and air hose and attachment cap duck bill clip side by side, the utility model is characterised in that:

(a) can respectively not be placement garden shape and garden annular piston in the promptly inside and outside inflator of the 2 air chambers cavity of Cylinder and hollow Cylinder but diameter does not wait the concentric phase suit of tracheae tube inside and outside surrounding by two equal lengths, piston rod of the interior inflator of equal length and two piston rods of outer inflator are crossed a heart and are arranged and go up together with connecting two-piston under the one handle along the diametric(al) lastrow in inflator cross section garden;

(b) inside and outside inflator separately on the gas transmission road promptly between 2 air chambers cavity and two one-way cocks and connect regulating switch valve, two passages at an angle to each other are arranged on the valve body, an end can lead to the external world;

(c) inside and outside inflator gas transmission road is separately by being inflated an object outward with communicating with a public gas cartridge to join with an air hose then and lead to tube after two one-way cocks link to each other again.

2, a kind of combined type pump according to claim 1 is characterized in that the area of the area of garden annular piston greater than garden shape piston.