CN102878333B - Automatic negative-pressure gas flow controlling device - Google Patents
Automatic negative-pressure gas flow controlling device Download PDFInfo
- Publication number
- CN102878333B CN102878333B CN201210399760.5A CN201210399760A CN102878333B CN 102878333 B CN102878333 B CN 102878333B CN 201210399760 A CN201210399760 A CN 201210399760A CN 102878333 B CN102878333 B CN 102878333B
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- suction tude
- housing
- piston
- connecting rod
- elastic membrane
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Abstract
The invention discloses an automatic negative-pressure gas flow controlling device. The automatic negative-pressure gas flow controlling device is characterized by comprising a shell, a gas intake pipe, a gas suction pipe, a piston, a connecting rod, a rocker and an elastic film. The automatic negative-pressure gas flow controlling device achieves the aim of supplying gas automatically by adopting the elastic film and utilizing a pressure balance principle and a principle of saving labor by a lever mechanism. The automatic negative-pressure gas flow controlling device has the beneficial effects of being simple in structure and convenient for gas supply control, and can be suitable for various gas storage devices.
Description
Technical field
The present invention relates to a kind of suction mechanism of caisson for breathing, especially a kind of possess the automatic suction mechanism of controlling out airway dysfunction.
Background technique
In some special fields or special occasion, need to adopt caisson to breathe for operator, such as lower operation of mining or sea etc.Existing caisson generally comprises oxygen cylinder, compressed air bottle and oxygen bag etc.
Existing these caissons, when for breathing, are generally to realize air feed by simple switch valve, exist and control inconvenience, cannot realize the defects such as automatic control.
Summary of the invention
For the problems referred to above and deficiency, technical problem to be solved by this invention is: how to provide a kind of simple in structure, it is convenient to control, and can in the time that caisson uses, realize the negative pressure type automatic control device for gas flow of automatic feeding.
In order to address the above problem, the present invention has adopted following technological scheme.
A kind of negative pressure type automatic control device for gas flow, it is characterized in that, comprise housing, one end of housing side is laterally outside equipped with suction tude, in suction tude, be provided with the piston being assemblied in slidably in suction tude, piston appearance has the projection that a circle is slidably matched for suction tude, in piston, also there is the gas passage excessively that is communicated with described protruding both sides, piston area is provided with elastic rubber ring and connecting rod to one end of enclosure interior, elastic rubber ring can with end, the inside one end of suction tude rise position-limiting action annular stop step coordinate carry out spacing and sealing, connecting rod inwardly passes suction tude hinged with the end of a connecting rod that is positioned at housing, between the annular stop step of connecting rod and suction tude end, leave the spatial channel that supplied gas is passed through, the other end of described connecting rod is hinged on the middle part of a rocking bar obliquely, and rocking bar lower end is hingedly fixed in the position that housing madial wall is relative with suction tude, and rocking bar upper end is connected to a plectane lower surface that is positioned at center, housing top, in housing, top position is also provided with an elastic membrane, elastic membrane periphery and inner walls sealing are fixing and housing inner chamber is divided into upper and lower two chambers, the chamber that is positioned at elastic membrane upper end communicates with atmosphere, be positioned on the chamber wall of elastic membrane lower end and be provided with sucking pipe, described plectane is fixedly installed on elastic membrane medium position, the outside end, one end of described suction tude be for the air inlet connections of caisson docking, suction tude inwall is also provided with one section of screw thread and is connected with an adjusting nut, nut middle part has the pore that is communicated with two ends, between adjusting nut and piston, is connected with Regulation spring.
When this device uses, can change the active force of Regulation spring by adjusting nut, make piston keep the stressed state that approaches balance in both sides to work smoothly; Then the air inlet connections of suction tude is docked with caisson.User is air-breathing by sucking pipe, when not air-breathing, the seal ring sealing of piston the inner is connected on the annular stop step of suction tude the inner, when user is air-breathing, the empty intracavity gas of enclosure interior lower end is drawn out of, lower end cavity air pressure declines, the upper end that elastic membrane moves down the rocking bar that has driven leverage rotates, and then drivening rod promotes connecting rod when rotating, and then promotes piston and make to unclamp between seal ring and annular stop step.Now the gas in caisson also enters into lower end chamber in housing by the space of crossing between gas passage and connecting rod and annular stop step on pore, the piston of adjusting nut successively by suction tude, lower end chamber internal air pressure is restored balance, and elastic membrane upwards resets and drives piston to reseal.Like this, along with user is constantly air-breathing from sucking pipe, the gas in caisson can automatically supplement and give vent to anger continuously.Realize the gas object of automatically controlling of giving vent to anger.
In sum, the present invention adopts elastic membrane to utilize atmospheric pressure equilibrium principle and the laborsaving principle of leverage, has realized the object of automatic feeding.Have simple in structure, air feed control effect easily.
figure of description
Fig. 1 is the structural representation of invention.
Fig. 2 is the plan view of Fig. 1.
Embodiment
When concrete enforcement, as depicted in figs. 1 and 2, a kind of negative pressure type automatic control device for gas flow, comprise housing 1, one end of housing 1 side is laterally outside equipped with suction tude 2, in suction tude 2, be provided with the piston 3 being assemblied in slidably in suction tude, piston 3 appearances have the projection that a circle is slidably matched for suction tude, in piston 3, also there is the gas passage 4 excessively that is communicated with described protruding both sides, piston 3 is provided with elastic rubber ring 5 and connecting rod 6 towards one end of enclosure interior, elastic rubber ring 5 can with end, the inside one end of suction tude rise position-limiting action annular stop step coordinate carry out spacing and sealing, connecting rod 6 inwardly passes suction tude 2 hinged with the end of a connecting rod 7 that is positioned at housing 1, between the annular stop step of connecting rod 6 and suction tude end, leave the spatial channel that supplied gas is passed through, the other end of described connecting rod 7 is hinged on the middle part of a rocking bar 8 obliquely, and rocking bar 8 lower ends are hingedly fixed in the position that housing madial wall is relative with suction tude, and rocking bar 8 upper ends are connected to plectane 9 lower surfaces that are positioned at center, housing top, the interior top position of housing 1 is also provided with an elastic membrane 10, elastic membrane 10 peripheries and housing 1 inner wall sealing are fixed and housing 1 inner chamber are divided into upper and lower two chambers, the chamber that is positioned at elastic membrane 10 upper ends communicates (while specifically enforcement with atmosphere, also the chamber of elastic membrane upper end is set to the air-pressure chamber sealing as required), be positioned on the chamber wall of elastic membrane 10 lower ends and be provided with sucking pipe 11, described plectane 9 is fixedly installed on elastic membrane 10 medium positions, the outside end, one end of described suction tude 2 be for the air inlet connections of caisson docking, suction tude 2 inwalls are also provided with one section of screw thread and are connected with an adjusting nut 12, nut 12 middle parts have the pore that is communicated with two ends, are connected with Regulation spring 13 between adjusting nut 12 and piston.
In this device, owing to being provided with Regulation spring and adjusting nut, can be applicable to multiple caisson, in the time of caisson for flexible, because can being subject to atmospheric pressure extruding, caisson keep air pressure inside substantially constant, therefore conciliation nut and the disposable adjusting of Regulation spring are put in place and can use gas storage and be finished always.In the time of caisson for rigidity, because caisson air pressure inside can reduce along with the passage of gas, therefore use after a period of time in the time that the reduction of caisson air pressure inside causes having difficulty in breathing, caisson gas outlet valve can cut out, suction tude is taken off rear to regulating nut location to adjust, change the part atmospheric pressure counteracting that the elastic force of Regulation spring loses its and caisson, and then can install rear continuation and normally use.Therefore while specifically enforcement, the pore of adjusting nut can preferably be set to be convenient to the pore of the shapes such as the triangle of plectrum location, makes it easy to insert plectrum and regulates.
In addition, when concrete enforcement, an one-way valve can be set in sucking pipe, one-way valve be used for ensureing air-flow from housing to sucking pipe Way out one-way flow, between one-way valve and sucking pipe outlet, arrange and be connected to second outside one-way valve simultaneously, when second one-way valve is used for ensureing to exhale, air-flow is from sucking pipe to outside one-way flow.Like this, user can directly be undertaken air-breathing and be exhaled by sucking pipe, makes its use convenient.
Claims (1)
1. the negative pressure type automatic control device for gas flow for breathing, it is characterized in that, comprise housing, one end of housing side is laterally outside equipped with suction tude, in suction tude, be provided with the piston being assemblied in slidably in suction tude, piston appearance has the projection that a circle is slidably matched for suction tude, in piston, also there is the gas passage excessively that is communicated with described protruding both sides, piston area is provided with elastic rubber ring and connecting rod to one end of enclosure interior, elastic rubber ring can with end, the inside one end of suction tude rise position-limiting action annular stop step coordinate carry out spacing and sealing, connecting rod inwardly passes suction tude hinged with the end of a connecting rod that is positioned at housing, between the annular stop step of connecting rod and suction tude end, leave the spatial channel that supplied gas is passed through, the other end of described connecting rod is hinged on the middle part of a rocking bar obliquely, and rocking bar lower end is hingedly fixed in the position that housing madial wall is relative with suction tude, and rocking bar upper end is connected to a plectane lower surface that is positioned at center, housing top, in housing, top position is also provided with an elastic membrane, elastic membrane periphery and inner walls sealing are fixing and housing inner chamber is divided into upper and lower two chambers, the chamber that is positioned at elastic membrane upper end communicates with atmosphere, be positioned on the chamber wall of elastic membrane lower end and be provided with sucking pipe, described plectane is fixedly installed on elastic membrane medium position, the outside end, one end of described suction tude be for the air inlet connections of caisson docking, suction tude inwall is also provided with one section of screw thread and is connected with an adjusting nut, nut middle part has the pore that is communicated with two ends, between adjusting nut and piston, be connected with Regulation spring, adjusting nut, for changing the active force of Regulation spring, makes piston keep the state of both sides stress balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210399760.5A CN102878333B (en) | 2012-10-19 | 2012-10-19 | Automatic negative-pressure gas flow controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210399760.5A CN102878333B (en) | 2012-10-19 | 2012-10-19 | Automatic negative-pressure gas flow controlling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102878333A CN102878333A (en) | 2013-01-16 |
| CN102878333B true CN102878333B (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210399760.5A Expired - Fee Related CN102878333B (en) | 2012-10-19 | 2012-10-19 | Automatic negative-pressure gas flow controlling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102878333B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862212A (en) * | 2015-05-27 | 2015-08-26 | 陆永柱 | Multi-purpose gas storage plate |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443830A (en) * | 2014-09-03 | 2016-03-30 | 费希尔久安输配设备(成都)有限公司 | Pressure regulator |
| CN104845873A (en) * | 2015-05-27 | 2015-08-19 | 陆永柱 | Biogas collection and discharge system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2651328A (en) * | 1950-02-10 | 1953-09-08 | Charles B Gamble | Diaphragm for pressure responsive apparatus and the like and pressure responsive device embodying the same |
| US5697398A (en) * | 1995-08-08 | 1997-12-16 | Fisher Controls International, Inc. | Fluid pressure regulator with boost tube unit including stem guide and lever retainer |
| CN2660265Y (en) * | 2003-03-05 | 2004-12-01 | 高培荣 | Pipeline gas governor |
| CN201391633Y (en) * | 2009-04-21 | 2010-01-27 | 宁波埃美柯铜阀门有限公司 | Non-return structure ball valve |
-
2012
- 2012-10-19 CN CN201210399760.5A patent/CN102878333B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2651328A (en) * | 1950-02-10 | 1953-09-08 | Charles B Gamble | Diaphragm for pressure responsive apparatus and the like and pressure responsive device embodying the same |
| US5697398A (en) * | 1995-08-08 | 1997-12-16 | Fisher Controls International, Inc. | Fluid pressure regulator with boost tube unit including stem guide and lever retainer |
| CN2660265Y (en) * | 2003-03-05 | 2004-12-01 | 高培荣 | Pipeline gas governor |
| CN201391633Y (en) * | 2009-04-21 | 2010-01-27 | 宁波埃美柯铜阀门有限公司 | Non-return structure ball valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862212A (en) * | 2015-05-27 | 2015-08-26 | 陆永柱 | Multi-purpose gas storage plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102878333A (en) | 2013-01-16 |
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Granted publication date: 20140730 Termination date: 20151019 |
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