CN2272062Y

CN2272062Y - Indicating pressure inflater

Info

Publication number: CN2272062Y
Application number: CN 96205780
Authority: CN
Inventors: 王其祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-31
Filing date: 1996-03-31
Publication date: 1998-01-07
Anticipated expiration: 2006-03-31

Abstract

The utility model relates to an indicating pressure inflator. The structure is that inner and outer tubes are sheathed to movably connect; one end of the inner tube is fixed to a cylinder base, and the other end is fixed to a pressurizing core. The periphery of the pressurizing core is provided with an O-shaped ring. A pressure gauge is arranged on an air passage of the inner tube. An inflator air outlet is provided with a needle tube. The edge of a needle tube air outlet is provided with small holes. A valve inside is arranged on the needle tube. The middle part of the valve inside is provided with a moving sealing head, a spring, and a check ring. The utility model overcomes the abuses that the existing inflator can not indicate change pressure, and can not be commonly used for various inflating tools, such as balls and bicycle tyres.

Description

Indicating type supercharging pump

The utility model belongs to a kind of supercharging pump.

Before the utility model is made, the supercharging type pump of public technology because inflate conveniently, laborsaving and favored by the Consumer.Interior bar and outer tube that its structure mainly is movably connected by suit, and composition such as O type circle, handle, supercharging device, cylinder base.During work, hold handle, the position shelf on the foot-operated cylinder base is (for portable pump, then be the proficiency handle, pinch outer tube wall on the other hand), take out, press interior bar, after the effect of O type circle crosses supercharging device with air pressure to become pressurized air, enter the inflation tool, and reach the inflation purpose from air flue.

The supercharging pump of said structure, the shortcoming of existence is: (1) can not show inner gas pressure, promptly aeration quantity enters the inflation tool such as ball, tire class can only be judged with feeling.When (2) giving various inflation tools such as ball, tire class inflation, owing to be subjected to the restriction of inflator pneumatic head, can not be general, i.e. function singleness.

The purpose of this utility model is that a kind of improved indicating type supercharging pump will be provided.It can show aeration quantity, can adapt to the inflation needs to different inflation tools such as ball, tire classes again.

The purpose of this utility model is achieved through the following technical solutions.

Comprise interior bar and outer tube that suit is movably connected, and the utility model of O type circle, cylinder base, handle and supercharging device, its structure outline is:

(1) above-mentioned interior bar is a hollow interior pipe, and its end and cylinder base are fixed, and install supercharge core on the port of the other end, and O type circle is contained in the groove of supercharge core periphery;

(2) handle is installed on the outer tube;

(3) air flue of interior pipe is provided with small movable seal head, and needle tubing is equipped with in the air flue outlet, and the edge, air outlet of needle tubing has aperture, and tyre valve core also is housed on the needle tubing; Installed pressure gauge on the air flue between small movable seal head and the needle tubing.

(4) the valve inside middle part is provided with end socket alive, spring and back-up ring.

The pump of said structure makes interior bar into hollow interior pipe and considers for pressurized effect; It is in order to adapt to the different needs of various inflation tool gas ports that gas port is set up needle tubing and valve inside, and it is to be to cooperate pressure gauge test needs that aperture is offered at edge, needle tubing air outlet, thereby has reached the utility model purpose.

The utility model is compared with the pump of prior art, this product is owing to set up the air pressure display system, needle tubing and novel valve inside, and with interior bar make into hollow in the pipe, thereby both had the air pressure Presentation Function, and can give the inflation of different inflation tool very easily again, simple in structure, convenient and practical, effect is obvious.

The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.

Fig. 1 is the utility model embodiment overall structure cut-away view;

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

Referring to accompanying drawing.The utility model embodiment comprises the interior pipe 12 that suit is movably connected, outer tube 13, and outer tube 13 can internally be managed 12 fore and aft motion mutually.Outer tube 13 1 ends are equipped with the handle that pipe handle 18 and button 19 formed, pipe handle and button split, and the button shape can be decided according to different needs, if portablely can be designed to circle, and to foot-operated " fourth " font that can be designed to, button is connected with external pipe thread.Fixedly mounted supercharge core 14 on interior pipe 12 ports in this end outer lumen 20.The structure of supercharge core 14 is identical with common Boost bicycle pump, and supercharging bumping post 17 is equipped with in inside, the end socket 16 of living; Two O type circles 15 are established in the outer ring.

At the other end of interior pipe 12, outer tube 13, have a plurality of suction ports 9 on the end cap of outer tube 13; Interior pipe 12 is fixing with cylinder base 6, and air flue passes cylinder base 6, as foot-operated pump foot-operated position shelf should be set on cylinder base 6.Air flue and interior tube chamber 21 junctions are provided with envelope gas column 11, small movable seal head 10.Inserted pressure gauge 8 (referring to Fig. 2) on the air flue, pressure gauge is precision 2.5 common barometers, and O type circle 7 seals.

Gas port installs needle tubing 4 through 5 sealings of O type circle.Needle tubing 4 is metal thin tubes, and there is an aperture at 1.5mm place, edge, air outlet, can insert ball etc.Needle tubing 4 valve insides 28 plug-in type closely connect, and movably small movable seal head 27 is arranged in the valve inside 28, can move by external force such as needle tubing 4 effects, its underpart spring 24 increases the effect of holding one's breath, low pressure is air tight, and spring 24 bottoms are provided with ring washer 26, also is provided with gas sealing ring 23 on the upper inside wall of valve inside 28.

Narrate this product below respectively and give operating process and working principle ball, the inflation of bicycle tyre class.

When 1, giving the inflation of bicycle tyre class:

Earlier valve inside 28 is inserted in tire, tightens valve nut 22, again needle tubing 4 is inserted in the valve inside 28.Spur outer tube 13 then, at this moment, ambient air arrives outer lumen 20 through suction port 9, depresses outer tube 13, and at this moment, O type circle 15 is had an effect, and makes the air tube chamber 21 in supercharge core 14 arrives in the outer lumen 20.Air in the interior tube chamber 21 backs down small movable seal head 10 again and enters tire through the end socket alive 27 of air flue, the last unseat the valve core of needle tubing, and pressure gauge shows inner gas pressure simultaneously.

When 2, giving inflation such as ball, as long as needle tubing is inserted in the ball, working principle is same as described above.

Claims

1, a kind of indicating type supercharging pump comprises interior bar and outer tube (13) that suit is movably connected, and O type circle (15), cylinder base (6), handle (18,19) and supercharging device (14), and air flue passes cylinder base (6), it is characterized in that:

(1) above-mentioned interior bar is a hollow interior pipe (12), and its end and cylinder base (6) are fixing, install supercharge core (14) on the port of the other end, and O type circle (15) is contained in the peripheral groove of supercharge core (14);

(2) handle (18,19) is installed on the outer tube (13);

(3) air flue of pipe (12) is provided with small movable seal head (10) in, and needle tubing (4) is equipped with in the air flue outlet, and the edge, air outlet of needle tubing (4) has aperture, and tyre valve core (28) also is housed on the needle tubing (4); Installed pressure gauge (8) on the air flue between small movable seal head (10) and the needle tubing (4).

(4) valve inside (28) middle part is provided with end socket alive (27), spring (24) and back-up ring (26).

2, pump according to claim 1 is characterized in that: supercharge core (14) periphery has 2 O type circles (15).