CN103028173A - Pneumatic alarm device - Google Patents
Pneumatic alarm device Download PDFInfo
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- CN103028173A CN103028173A CN2011102905601A CN201110290560A CN103028173A CN 103028173 A CN103028173 A CN 103028173A CN 2011102905601 A CN2011102905601 A CN 2011102905601A CN 201110290560 A CN201110290560 A CN 201110290560A CN 103028173 A CN103028173 A CN 103028173A
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- pneumatic
- oxygen
- tubular shell
- appendix
- alarm
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Abstract
A pneumatic alarm device comprises an oxygen source, wherein a gas delivery pipe of the oxygen source is connected with a gas storage tank through a one-way valve. The pneumatic alarm device is characterized in that the gas delivery pipe of the oxygen source is further connected with a two-position two-way pneumatic valve which is further connected with a pneumatic alarm through the gas delivery pipe. The pneumatic alarm comprises a tubular shell, wherein pinhole nozzles and a volume-adjustment device are arranged inside the tubular shell and the pinhole nozzles are connected with the two-position two-way pneumatic valve through the gas delivery pipe.
Description
Technical field
The invention belongs to medical instruments field, relate to a kind of pneumatic warner, especially the oxygen low-pressure pneumatic alarm device in the anesthetic machine gas circuit.
Background technology
Anesthetic machine is mainly used in the suction-type surgery anesthesia clinically, its principle is to utilize the mist of oxygen or oxygen to make the anaesthetic volatilization by the anaesthetic vaporizer, produce oxygen and the mist of anaesthetic, will input to patient with the mist of anaesthetic, make patient be in narcotism.The used source of the gas of anesthetic machine mainly contains oxygen, air and nitrous oxide gas, and oxygen is the most important gas of keeping patients ' lives in these three kinds of gases, requires to keep certain pressure, so anesthetic machine requires to have the oxygen low pressure alarm.Normal employing is electronic alarm at present, but structure is complicated, and cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of pneumatic warner, utilize the oxygen low pressure in the anesthetic machine gas circuit to carry out pneumatic warning, not only simple in structure, cost is low, and Melodious chimes of doom.
Structure of the present invention is as follows:
A kind of pneumatic warner, comprise source of oxygen, the appendix of source of oxygen is connected with air accumulator by check valve, it is characterized in that: the appendix of described source of oxygen also connects a bi-bit bi-pass pneumatic operated valve, and described bi-bit bi-pass pneumatic operated valve is connected with a pneumatic alarm by appendix again.
Described pneumatic alarm comprises a tubular shell, is provided with pinhole nozzle and variator in the tubular shell, and described pinhole nozzle is connected by appendix with described bi-bit bi-pass pneumatic operated valve.
Described tubular shell is provided with through hole.
The present invention directly utilizes the oxygen in the anesthetic machine gas circuit to carry out pneumatic warning, and when oxygen pressure was lower than setting value, the bi-bit bi-pass pneumatic operated valve was opened, oxygen enters alarm by the bi-bit bi-pass pneumatic operated valve, Melodious chimes of doom, and simple in structure, and cost is low.
Description of drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is the STRUCTURE DECOMPOSITION sketch map of alarm
Fig. 3 is the alarm principle figure of pneumatic alarm
The specific embodiment
As shown in Figure 1, the present invention includes source of oxygen 1, the appendix of source of oxygen is connected with air accumulator 3 by check valve 2; And the appendix of source of oxygen also connects a bi-bit bi-pass pneumatic operated valve 4, and described bi-bit bi-pass pneumatic operated valve 4 is connected with a pneumatic alarm 5 by appendix again.
As shown in Figure 2, described pneumatic alarm 5 comprises a tubular shell, and this tubular shell is comprised of upper shell 51 and lower house 52, is provided with pinhole nozzle 6 and variator 7 in the tubular shell.Described pinhole nozzle 6 is connected by appendix with bi-bit bi-pass pneumatic operated valve among Fig. 1.
Can be provided with through hole on the described tubular shell.
The present invention can set the opening pressure of bi-bit bi-pass pneumatic operated valve.When the pressure of source of oxygen was lower than setting value, the bi-bit bi-pass pneumatic operated valve was opened, and the oxygen of source of oxygen enters alarm device by two position two-way valve.
As shown in Figure 3, after oxygen enters alarm, by pinhole nozzle 6 ejections, and produce negative pressure with air by (air flow as shown by the arrows in Figure 3) in the through hole suction casing on the tubular shell, the cavity in the tubular shell is equivalent to gas hybrid chamber 8, air amount is in gas hybrid chamber 8 and oxygen mix, mineralization pressure is low and air-flow that flow is high, thereby variator 7 is blowed, produce chimes of doom, and this chimes of doom is more melodious soft.
Claims (3)
1. pneumatic warner, comprise source of oxygen, the appendix of source of oxygen is connected with air accumulator by check valve, it is characterized in that: the appendix of described source of oxygen also connects a bi-bit bi-pass pneumatic operated valve, and described bi-bit bi-pass pneumatic operated valve is connected with a pneumatic alarm by appendix again.
2. pneumatic warner according to claim 1, it is characterized in that: described pneumatic alarm comprises a tubular shell, is provided with pinhole nozzle and variator in the tubular shell, described pinhole nozzle is connected by appendix with described bi-bit bi-pass pneumatic operated valve.
3. pneumatic warner according to claim 2, it is characterized in that: described tubular shell is provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102905601A CN103028173A (en) | 2011-09-29 | 2011-09-29 | Pneumatic alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102905601A CN103028173A (en) | 2011-09-29 | 2011-09-29 | Pneumatic alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103028173A true CN103028173A (en) | 2013-04-10 |
Family
ID=48015895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102905601A Pending CN103028173A (en) | 2011-09-29 | 2011-09-29 | Pneumatic alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103028173A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593152A (en) * | 2021-09-13 | 2021-11-02 | 中车大同电力机车有限公司 | Pneumatic alarm device and locomotive |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776422A (en) * | 1972-10-25 | 1973-12-04 | Mine Safety Appliances Co | Compressed gas breathing apparatus |
| US4825802A (en) * | 1986-07-24 | 1989-05-02 | Societe Anonyme Drager | Pheumatic alarm for respirator |
| CN101507852A (en) * | 2009-03-23 | 2009-08-19 | 王中 | Pneumatic pressure low-pressure alarming device |
| CN201862006U (en) * | 2010-09-17 | 2011-06-15 | 山东新华医疗器械股份有限公司 | Door sealing and pneumatic control device for sterilizer |
-
2011
- 2011-09-29 CN CN2011102905601A patent/CN103028173A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776422A (en) * | 1972-10-25 | 1973-12-04 | Mine Safety Appliances Co | Compressed gas breathing apparatus |
| US4825802A (en) * | 1986-07-24 | 1989-05-02 | Societe Anonyme Drager | Pheumatic alarm for respirator |
| CN101507852A (en) * | 2009-03-23 | 2009-08-19 | 王中 | Pneumatic pressure low-pressure alarming device |
| CN201862006U (en) * | 2010-09-17 | 2011-06-15 | 山东新华医疗器械股份有限公司 | Door sealing and pneumatic control device for sterilizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593152A (en) * | 2021-09-13 | 2021-11-02 | 中车大同电力机车有限公司 | Pneumatic alarm device and locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |