CN2747442Y - Pressure balance type gas cylinder - Google Patents

Pressure balance type gas cylinder Download PDF

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Publication number
CN2747442Y
CN2747442Y CN 200420107764 CN200420107764U CN2747442Y CN 2747442 Y CN2747442 Y CN 2747442Y CN 200420107764 CN200420107764 CN 200420107764 CN 200420107764 U CN200420107764 U CN 200420107764U CN 2747442 Y CN2747442 Y CN 2747442Y
Authority
CN
China
Prior art keywords
gas
handwheel
nut
spool
provided
Prior art date
Application number
CN 200420107764
Other languages
Chinese (zh)
Inventor
戎建明
Original Assignee
戎建明
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 戎建明 filed Critical 戎建明
Priority to CN 200420107764 priority Critical patent/CN2747442Y/en
Application granted granted Critical
Publication of CN2747442Y publication Critical patent/CN2747442Y/en

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Abstract

The utility model discloses a pressure balance type gas cylinder, relating to disposable gas cylinders and the field of medical asepsis oxygenation pressure transfusion; the utility model aims at the technical problem that gas inflation in a pressure balance can not be obtained in known oxygen cylinder which can realize releasing gas flow quantity by regulating the flow quantity of an airway. The utility model has the technical proposal that the lower part of a handwheel is provided with a preforming and a valve core; a movable cabin is arranged between the preforming and the valve core, and one side of the movable cabin is provided with a gas discharge duct. When the utility model is used, the handwheel is rotated in a clockwise direction, and a thimble is driven by the handwheel to push downwards; a hole is penetrated on a top cap by the thimble, and gas in the cylinder can be discharged; the gas flows to the valve core and the gas discharge duct of the preforming via a liner and a pad, and the gas is transported to a gas needing part via a gas supply connecting port of the handwheel. When pressure in a container of the gas needing party is increased, the valve core is bulged, and accordingly, a gas passage can be blocked; the gas in a cylinder body can be in a cut-off state. When pressure of the gas needing party is dropped, the valve core is reset to an original state. The pressure balance type gas cylinder is also suitable for cylinders of other gases.

Description

The pressure-balance type air cylinder

Technical field

The utility model relates to disposable air cylinder and medical aseptic oxygenation pressure transfusion field.

Background technique

The air cylinder of Shi Yonging in the market, discharging gas during use and be the armrest wheel regulates the runner size of air cylinder and comes control flow rate, when although the pressure in the bottle changes this moment, the runner that discharges gas also can produce certain variation, finally can't realize unified all the time effect.And the phenomenon that is difficult to stop lose heart of some position in the structure, cause defectives such as the storage time is short.

Summary of the invention

The purpose of this utility model provides a kind of pressure-balance type air cylinder of controlling gas flow in self bottle with the pressure in demanding party's container, to solve the ballistic kick in medical aseptic oxygenation pressure transfusion process, wild effects such as deceleration have also guaranteed sealability, have extended the storage time.

Above-mentioned purpose is achieved in that the liberation port of air cylinder is located at the handwheel position, handwheel inside is provided with nut, spool and compressing tablet, be provided with movable storehouse between spool and the compressing tablet, spool is packed in the nut with special tool, with the welding of compressing tablet and nut, make air vent and the movable storehouse seal isolation on the compressing tablet between nut and the spool again, again handwheel and compressing tablet are welded.Gas in the air cylinder is through thimble top Chuanfeng's mouth so in use, and by the vent slot between nut and the spool, the air vent that enters between compressing tablet and the handwheel enters demanding party's container again.When the interior pressure of demanding party's container reaches rated pressure, spool will be heaved to movable storehouse direction, along with heaving of spool, just air vent be blocked with the umbrella valve head position of spool disjunctor, make the gas in the air cylinder be in closed condition.Along with the liquid as infusion bottle in demanding party's container outflows, hypotension, spool can automatically reset.

The pressure-balance type air cylinder is characterised in that this air cylinder is made up of handwheel, compressing tablet, spool, nut, pad, filter sheet, O-ring seal, lining, thimble, loam cake, bottle, valve rod, valve block, spring, shutoff, it is characterized in that:

A), handwheel 1 is provided with air feed connection mouth 1-1, the air feed connection mouth is communicated with air vent in compressing tablet 2, nut 4, pad 5, filter sheet 6, the lining 8;

B), the upper end of handwheel 1 and compressing tablet 2, nut 4 is integrally welded with the lower end of compressing tablet 2, the centre is bumped into spool 3, compressing tablet is provided with movable storehouse 2-1 with the spool centre, a side in movable storehouse is provided with air vent;

C), the center portion of nut 4 is provided with the air vent outpost of the tax office, promptly the umbrella shape valve head 3-1 of spool 3 is placed in one, pad 5 and filter sheet 6 are arranged at the bottom, there is thimble 9 below of valve block correspondence, thimble is to place lining 8; Nut 4 is threaded with the lid neck 10-1 of loam cake 10, is provided with O-ring seal 7 at the internal diameter that covers neck;

D), loam cake 10 is one with the junction of shutoff 15 by ultrasonic welding with bottle 11, loam cake 10, do not establish ventilating hole in the loam cake 10; Going out a vent with thimble 9 in use gives vent to anger.

E), bottle 11 bottoms are protruding, recessed disjunctor, the convex body center portion is a through hole, is provided with valve rod 12 in the through hole, is with valve block 13 in the bar groove of valve rod, the underpart of valve rod is with spring 14; Connect shutoff 15 in the through hole in concave volume center portion.

The utility model has the advantages that whole weighing apparatus pressing system compact structure, volume is little, and is highly sensitive, easy to operate, and cost is low.Regulate without moderate in use, the transfusion speed all reaches weighing apparatus presses, and good seal performance, and the gas storage time is long, and the air cylinder that also is suitable for other gas is used.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Opening state schematic representation when Fig. 2 is to use;

Closed condition schematic representation when Fig. 3 is to use;

View when Fig. 4 is aeration.

The sequence number of above accompanying drawing and title: 1, handwheel, 1-1, air feed connection mouth, 2, compressing tablet, 2-1, movable storehouse, 3, spool, 3-1, umbrella shape valve head, 4, nut, 5, pad, 6, filter sheet, 7, O-ring seal, 8, lining, 9, thimble, 10, loam cake, 10-1, lid neck, 11, bottle, 12, valve rod, 13, valve block, 14, spring, 15, shutoff, 16, the aeration frock.

Embodiment

The pressure-balance type air cylinder is on the basis of general air cylinder, carry out improved a kind of air cylinder, the aeration mouth is located at the below of bottle 11, valve rod 12 is equipped with in inside, valve block 13, spring 14, push rod on the aeration frock 16 pushes valve rod 12, valve block 13 is separated with the suction port of bottle 11, gas enters in the air cylinder, irritates to rated pressure, and the push rod of aeration frock unclamps, spring 14 drives valve rod 12 and resets, make valve block 13 with the sealing of suction port moment, and the shutoff 15 of burn-oning, make whole air cylinder form one, stopped to lose heart, guaranteed the storage time of gas in air cylinder.Be provided with nut 4 on the loam cake 10, loam cake 10 cooperates with nut 4 usefulness movable whorls, clockwise rotate nut 4 during use, nut 4 screws the screw thread of loam cake 10 toward pressing down, because of be equipped with in the nut 4 pad 5, filter sheet 6, lining 8 (be provided with lining 8 and pad 5 mainly fixedly thimble 9 and establish air vent and use) and thimble 9 pressing down along with nut 4, thimble 9 will be gone out an air outlet hole on loam cake 10, sealed by O-ring seal 7 between loam cake 10 and the nut 4.The gas that discharges from air vent just can only flow through filter sheet 6 along the air vent of lining 8, enters the weighing apparatus pressing system of nut 4 tops design again by the air vent of pad 5.The weighing apparatus pressing system is made up of nut 4, spool 3, compressing tablet 2, handwheel 1, the material of spool 3 is rubber and the umbrella shape valve head 3-1 that has designed disjunctor in the above, packed in the air vent of nut 4 with special tool in the umbrella valve head position on the spool 3 earlier, again with compressing tablet 2 and nut 4 welding, (air vent of these three parts is unimpeded to make air vent seal isolation on the movable storehouse 2-1 that are provided with in the compressing tablet 2 and nut 4, spool 3, the compressing tablet 2, and be isolated from the outside), again with handwheel 1 and compressing tablet 2 welding, handwheel 1 is provided with air feed connection mouth 1-1, also is provided with locating bump.When welding, as long as the locating bump of handwheel 1 is inserted in the positioning groove of compressing tablet 2, just can make air vent unimpeded, and seal with the external world, also the positioning block place between compressing tablet 2 and handwheel 1 is provided with movable storehouse air vent, so in use, the movable back and forth influence that just will not be subjected to the storehouse internal pressure of spool makes that product is highly sensitive in use, safety.

It is the air feed connection mouth that connecting tube one end is inserted handwheel 1 that air feed connects, and the other end is connected with demanding party's container (infusion bottle), clockwise rotates handwheel 1, and the nut 4 and the helical thread portion of loam cake 10 are fitted like a glove.At this moment the thimble of installing on the nut 9 has been gone out an air outlet hole on just in loam cake 10, gas in the air cylinder passes through lining 8, filter sheet 6, pad 5 along air outlet hole, by the air vent of nut 4 tops each part of weighing apparatus pressing system, enter demanding party's container (infusion bottle) again by the air feed connection mouth.When reaching rated pressure in demanding party's container, spool 3 can be subjected to the thrust of air pressure and heave to movable storehouse direction, and the umbrella shape valve head on the spool 3 is blocked place, the air vent outpost of the tax office on the nut 4, and the gas in the air cylinder is in closed condition.Liquid output in demanding party's container (infusion bottle), spool 3 can automatically reset when internal pressure lowered, and made air cylinder be in opening state.Because spool 3 usefulness rubber are made, have good elasticity, the pressure between nut 4 and the spool 3 on the air vent equates with pressure in demanding party's container (infusion bottle), so big to the thrust of spool 3 when pressure is high, air cylinder is in closed condition; Little to the thrust of spool 3 when pressure is low, owing to the elastic force of spool 3 self resets, air cylinder is in opening state, and this has just guaranteed demanding party's container (infusion bottle) internal pressure balance.Because container internal pressure is a balance, the fluid flow of being exported also is uniformly, and operation is equally simple with common gravity transfusion, and the size of flow is as long as the flow-adjustable valve of regulating on the transfusion device just can realize that weighing apparatus is pressed, the purpose of current stabilization, and consistently, need not to regulate midway.

Claims (1)

1, pressure-balance type air cylinder, this air cylinder is made up of handwheel, compressing tablet, spool, nut, pad, filter sheet, O-ring seal, lining, thimble, loam cake, bottle, valve rod, valve block, spring, shutoff, it is characterized in that:
A), handwheel (1) is provided with air feed connection mouth (1-1), the air feed connection mouth is communicated with air vent in compressing tablet (2), nut (4), pad (5), filter sheet (6), the lining (8);
B), the upper end of handwheel (1) and compressing tablet (2), nut (4) is integrally welded with the lower end of compressing tablet (2), the centre is bumped into spool (3), compressing tablet is provided with movable storehouse (2-1) with the spool centre, a side in movable storehouse is provided with air vent;
C), the center portion of nut (4) is provided with the air vent outpost of the tax office, promptly the umbrella shape valve head (3-1) of spool (3) is placed in one, pad (5) and filter sheet (6) are arranged at the bottom, there is thimble (9) below of valve block correspondence, thimble is to place lining (8); Nut (4) is threaded with the lid neck (10-1) of loam cake (10), is provided with O-ring seal (7) at the internal diameter that covers neck;
D), loam cake (10) and bottle (11), loam cake (10) be one with the junction of shutoff (15) by ultrasonic welding, loam cake is not established ventilating hole in (10);
E), bottle (11) bottom is protruding, recessed disjunctor, the convex body center portion is a through hole, is provided with valve rod (12) in the through hole, is with valve block (13) in the bar groove of valve rod, the underpart of valve rod is with spring (14); Connect shutoff (15) in the through hole in concave volume center portion.
CN 200420107764 2004-10-22 2004-10-22 Pressure balance type gas cylinder CN2747442Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420107764 CN2747442Y (en) 2004-10-22 2004-10-22 Pressure balance type gas cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420107764 CN2747442Y (en) 2004-10-22 2004-10-22 Pressure balance type gas cylinder

Publications (1)

Publication Number Publication Date
CN2747442Y true CN2747442Y (en) 2005-12-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420107764 CN2747442Y (en) 2004-10-22 2004-10-22 Pressure balance type gas cylinder

Country Status (1)

Country Link
CN (1) CN2747442Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101517290B (en) * 2006-09-27 2012-02-01 罗伯特.博世有限公司 Pressure compensation element, in particular for pressure compensation in a housing
WO2012034392A1 (en) * 2010-09-19 2012-03-22 Wang Qing Relief valve for aerosol refrigerant tank
CN104685286A (en) * 2012-09-05 2015-06-03 兰德股份公司 Gas supply device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101517290B (en) * 2006-09-27 2012-02-01 罗伯特.博世有限公司 Pressure compensation element, in particular for pressure compensation in a housing
WO2012034392A1 (en) * 2010-09-19 2012-03-22 Wang Qing Relief valve for aerosol refrigerant tank
CN104685286A (en) * 2012-09-05 2015-06-03 兰德股份公司 Gas supply device

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee