CN2151273Y

CN2151273Y - Air circuit assembly of air pump

Info

Publication number: CN2151273Y
Application number: CN 92234564
Authority: CN
Inventors: 齐学福
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-10
Filing date: 1992-10-10
Publication date: 1993-12-29
Anticipated expiration: 2002-10-10

Abstract

The utility model relates to an inflator with parallel type air-passage. The inflator has the features that a new parallel type air-passage structure and a T-shaped check valve are adopted; an installation checking hole of the check valve and a bottom-nozzle connecting hole are combined into one hole which has multiple functions. More reasonable and more simple structure, favorable effects of buffering and checking, easy maintenance, reduced working process, lowered material consumption and cost saving are provided.

Description

Air circuit assembly of air pump

The utility model relates to a kind of pump that is communicated with gas circuit that improves, particularly a kind of pump that adopts the gas circuit of parallel way connection.

The pump of existing band gas holder all adopts the series connection gas circuit, and the air after being compressed in pump is responsible for charges into tire through check valve, gas holder, Di Zui, sebific duct successively.What the pump of selling on the market adopted now is exactly this gas circuit pattern.This gas circuit structure manufacturing process complexity, cost is high and be not easy to keep in repair check valve.

Task of the present utility model is the pump that a kind of novel parallel gas circuit will be provided, and not only structure is more simple, rationally for it, is convenient to make, and cost is lower, and can overhaul check valve easily, increases the service life.

Task of the present utility model is finished as follows: the air after compressing from the pump person in charge, enter and also upwards back down check valve in the air flue in the collet, entering one chews and the gas holder little air chamber that is communicated with in parallel with the end that is connected sebific duct respectively, portion gas can be stored in the gas holder when giving Tyre inflating, plays buffer function; When on being responsible for leather cup, carrying, check valve close in case gas backstreaming to being responsible for, the pressurized air in this moment gas holder then backflows to chew to little air chamber and the end of by and enters sebific duct, continues to give Tyre inflating.When the example structure that will describe in detail below adopting, check valve installation and maintenance hole and Di Zui hole can be united two into one, both check was effective, and the easy access check valve reduces manufacturing procedure again, reduction materials consumption and collet weight, saving cost.

Below with reference to accompanying drawing the utility model is described in further detail.

Fig. 1 is the sectional drawing of a kind of concrete structure of the present utility model.

With reference to accompanying drawing 1, (7) are chewed at the person in charge (3), the end, gas holder (6) is scyewed joint with the interface of collet (4).Depression bar (1) be installed on the person in charge (3) after leather cup (2) is connected among, be processed with in the collet (4) three air flues of (A), (B), (D) of communicating respectively be responsible for the bottom of (3), the end chewing (7) and gas holder (6) and communicate, and chew at collet (4) and the end be fitted with in (7) air flue (B) below the interface check valve core (5) and and the end chew and form a little air chamber (C) between (7), air chamber (C) respectively with the air flue that is communicated with gas holder (6) (D) He Dizui (7) in air flue (E) connection in parallel.Check valve core (5) is the vary in size rubber cylinder of diameter of having of a T shape, and has worn a ring packing platform in its big bottom, and the Outside diameter of check valve core (5) is slightly less than the end, and to chew (7) jointing be the internal diameter of air chamber (C); End diameter is slightly less than the internal diameter of air flue (B).

During work, depression bar (1) orders about leather cup (2) air in motion downwards and the compression person in charge (3) in being responsible for (3), its pressure is raise and enter the air flue (A) that is interconnected in the collet (4) and (B) in, pressurized air under pressure, annular space enters air chamber (C) upwards back down check valve core (5) and edge in air flue (B) around, air in the air chamber (C) enters in the gas holder (6) and chews the end of through air flue (E) (7) in through (D) air flue respectively and enters and be connected the end and chew in the sebific duct (8) on (7) to Tyre inflating, the two is in parallel and is communicated with, while can inflate stored-gas simultaneously.After leather cup (2) in being responsible for (3) comes downwards to the bottom of the person in charge (3), depression bar (1) then move upward and enter air-breathing program, be negative pressure in being responsible for this moment, at pressure that air chamber (C) is located be communicated with under the differential pressure action between the negative pressure in (B) air flue of being responsible for (3), the descending air flue (B) of closing of check valve core (5) makes it to separate with air chamber (C), the gas that be stored in the gas holder (6) this moment then backflows to air chamber (C) through air flue (D), and the air flue of chewing in (7) end of by (E) continues to give Tyre inflating through sebific duct (8).When depression bar (1) when moving downward, the up once more unlatching of check valve core (5) repeats above-mentioned action, and circulation according to this finishes until inflation.

In use, as need maintenance check valve, (7) are chewed at the end that is detachably connected on the collet (4), then can take out check valve core (5) easily and repair or replace.

Claims

1, a kind of by depression bar (1), leather cup (2), be responsible for (3), collet (4), check valve core (5), gas holder (6), the end and chew the pump of the parallel gas circuit that (7) and sebific duct (8) form, it is characterized in that the little air chamber (C) that the interior check valve core of collet (4) (5) is chewed the end of with between (7) is communicated with gas holder (6) He Dizui (7) parallel connection respectively.

2,, it is characterized in that being responsible for (3), gas holder (6) and the end to chew (7) and all adopt with the connection mouth of collet (4) and be threaded by the pump of the described parallel gas circuit of claim 1.

3, press the pump of the described parallel gas circuit of claim 1, it is characterized in that check valve core (5) is one to have the T shape rubber cylinder of the diameter that varies in size and have a ring packing platform in the Outside diameter bottom surface, its large and small end diameter is slightly less than the internal diameter of interior air chamber of collet (4) (C) and air flue (B) respectively.

4, by the pump of the described parallel gas circuit of claim 1, it is characterized in that being processed with in the collet (4) (A, B, D) air flue of being interconnected and respectively be responsible for the bottom of (3), the end chewing (7) and gas holder (6) and communicate.

5, by the pump of the described parallel gas circuit of claim 1, it is characterized in that the upper end of chewing (7) in the end is connected with sebific duct (8), the lower end is communicated with air chamber (C).