CN2045786U

CN2045786U - Single-tube power-saving inflator

Info

Publication number: CN2045786U
Application number: CN 89211280
Authority: CN
Inventors: 唐柏洪
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-04-08
Filing date: 1989-04-08
Publication date: 1989-10-11

Abstract

Disclosed is a single-tube power-saving inflator whose bottom is provided with an air storage inflator body of the upper part integrated with the bottom. The upper end interface of the air storage inflator body is not only connected with one unidirectional valve but also screwed with the lower end of interface of the inflator body; one pressure-accumulating chamber which is communicated with an air conduit is surrounded by the unidirectional valve and the base with the air storage inflator body of the upper part. The utility model has the advantages of simple structure and easy fabrication, in particular to the inflation to vehicle tires such as bicycles, motorcycles, etc.

Description

Single-tube power-saving inflator

The utility model belongs to the hand-operated pump.

In the prior art, on the base in addition with the double hose pump of air storage bag, though inflate laborsaving, complex structure, manufacturing procedure is many.The disclosed single cylinder effort-saving high-pressure air pump of CN88105859, though structure has simplification, but chamber and pressure accumulation chamber are arranged in the cylindrical shell owing to will calm the anger, thereby separate the one-way valve in calm the anger chamber and pressure accumulation chamber, or will be on cylinder inboard wall with the tapered sleeve wedging, and the cylindrical of tapered sleeve need be slotted and seal ring is installed, or will be with not only being with vent but also threaded pole to be fastened on the base, thereby the processing request height, operation is many, makes trouble still.

The purpose of this utility model provides a kind of both simple in structure, the laborsaving pump of single tube type easy to manufacture again.

The technological scheme that realizes above-mentioned purpose is: make the base of pump have the top air storage cylindrical shell of making one with its bottom, the last end interface of this air storage cylindrical shell, both an one-way valve in load, be threaded the again following end interface of pump cylinder, and surround a pressure accumulation chamber that communicates with pneumatic tube with the base of band top air storage cylindrical shell by one-way valve.

Advantage of the present utility model is simple in structure, both is not with the air storage bag in addition, be not connected and fixed one-way valve with tapered sleeve or pole again, thereby manufacturing is easy.

Below in conjunction with accompanying drawing structure of the present utility model is described specifically.

Fig. 1 is the structural representation of the laborsaving pump of a kind of single tube type.

Fig. 2 among Fig. 1 between the conversion embodiment of the one-way valve between chamber and the pressure accumulation chamber of calming the anger.

Fig. 3 is the plan view of the valve seat of one-way valve among Fig. 2.

Fig. 4 is another conversion example of valve seat shown in Figure 3.

As shown in Figure 1, the laborsaving pump of a kind of single tube type, form by loam cake (1), pump cylinder (2), base (9) and pneumatic tube (11) etc., a piston that links to each other with handle (3) is arranged in the pump cylinder (2), and pump cylinder (2) links to each other directly with base (9) respectively with pneumatic tube (11).Base of the present utility model (9) has the top air storage cylindrical shell (9 ') of making one with its bottom, last end interface at air storage cylindrical shell (9 '), both an one-way valve in load, the following end interface of pump cylinder (2) is being threaded again, simultaneously, the inner chamber of the top air storage cylindrical shell (9 ') of base (9) communicates with pneumatic tube (11).Like this, just surrounded a pressure accumulation chamber (10) that communicates with pneumatic tube (11) with the base (9) of band top air storage cylindrical shell (9 ') by one-way valve.Both simple in structure, when inflating, play the labour-saving effect again.

One-way valve can be made up of valve seat (5), valve (6), spring (7) and with holes sealing up a door (8) as shown in Figure 1.Valve (6) is pressed in the air inlet position of valve seat (5) by spring (7), and the bottom of spring (7) is supported with holes sealing up a door (8).Valve (6) can be as shown in the figure spherical, also can be forms such as rivet-like or sheet.

One-way valve can also be made up of valve seat (5), leather cup (12), lower gasket (13) and screw (14) as shown in Figure 2.Wherein valve seat (5) can be as Fig. 2, have vent (5 ') shown in 3, also can have ventilation breach (5 ') as shown in Figure 4, so that make the pressurized air in the chamber of calming the anger (4) of pump cylinder (2) can pass through valve seat (5) more glibly, again through the edge of leather cup (12) and enter the pressure accumulation chamber (10) of bottom.

The valve seat of the one-way valve among above-mentioned Fig. 1,2 (5), last end interface general and air storage cylindrical shell (9 ') is taked end face attaching or side face tapered joint, is clamped by the following end interface of pump cylinder (2) and the last end interface of air storage cylindrical shell (9 ') then.(valve seat (5) also can be taked to be threaded with the last end interface of air storage cylindrical shell (9 ')).The material of valve seat (5) can adopt A ₃Steel or nylon etc., above it or the below also can install seal ring additional so that reduce or overcome gas leak phenomenon.

Above-mentioned pump, when piston (3) when pressing down, pressurized air in the chamber of calming the anger (4) that surrounds by piston (3), pump cylinder (2) and one-way valve, just enter the pressure accumulation chamber (10) that surrounds of base (9) by one-way valve and band top air storage cylindrical shell (9 ') of bottom through one-way valve, pass through pneumatic tube (11) again and enter tire.When piston (3) rose, the air pressure in pressure accumulation chamber (10) remained unchanged because of the effect of one-way valve, thereby has realized laborsavingization, was specially adapted to the tyre inflation of vehicle such as Bicycles and Motorcycles.

Claims

1, the laborsaving pump of a kind of single tube type, by loam cake (1), pump cylinder (2), base (9) and pneumatic tube compositions such as (11), a piston that links to each other with handle (3) is arranged in the pump cylinder (2), and pump cylinder (2) directly links to each other with base (9) respectively with pneumatic tube (11), it is characterized in that: base (9) has the top air storage cylindrical shell (9 ') of making one with its bottom, the last end interface of this air storage cylindrical shell (9 '), both an one-way valve in load, be threaded the again following end interface of pump cylinder (2), and surround a pressure accumulation chamber (10) that communicates with pneumatic tube (11) with the base (9) of band top air storage cylindrical shell (9 ') by one-way valve.

2, pump according to claim 1, it is characterized in that: one-way valve is made up of valve seat (5), valve (6), spring (7) and with holes sealing up a door (8), valve (6) is pressed in the air inlet position of valve seat (5) by spring (7), the bottom of spring (7) supports that with holes sealing up a door (8) valve seat (5) is clamped by the following end interface of pump cylinder (2) and the last end interface of air storage cylindrical shell (9 ').

3, pump according to claim 1 and 2 is characterized in that: valve seat (5) is taked to be threaded with the last end interface of air storage cylindrical shell (9 ').