CN2140244Y - Memory alloy bow-shaped temp sensing driver for fire extinguisher - Google Patents
Memory alloy bow-shaped temp sensing driver for fire extinguisher Download PDFInfo
- Publication number
- CN2140244Y CN2140244Y CN 92244129 CN92244129U CN2140244Y CN 2140244 Y CN2140244 Y CN 2140244Y CN 92244129 CN92244129 CN 92244129 CN 92244129 U CN92244129 U CN 92244129U CN 2140244 Y CN2140244 Y CN 2140244Y
- Authority
- CN
- China
- Prior art keywords
- fire extinguisher
- memory alloy
- temperature
- bow
- memorial alloy
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a memory alloy bow-shaped temperature-sensing driver for a fire extinguisher, composed of a memory alloy bow-shaped sheet, a frame, screw rods and screw bolts. When the temperature on the spot reaches to the set value, the memory alloy bow-shaped sheet expands. When the expansion force is larger than the starting pressure of the fire extinguisher, a valve is pushed and opened. Then, the extinguishing material is sprayed out; when the temperature on the spot after the fire extinction is below the set value, the memory alloy bow-shaped sheet shrinks so that the valve is closed. The device can open and close automatically within the wide range of the preset temperature, and additionally, the utility model with simple structure and sensitive and effective function can be used repeatedly.
Description
The utility model relates to fire extinguisher memorial alloy automatic drive, and particularly fire extinguisher is with memorial alloy bow type temperature-sensitive automatic drive.
In the prior art, the temperature-sensing element of pipeline fire extinguisher is to adopt glass envelope, and when scene temperature reached certain value, glass vapour explosion and bring out drive unit sprayed extinguishing material automatically.The shortcoming of this kind glass envelope is can only once use and can not stop automatically, behind the ejection extinguishing material, just can not stop voluntarily, cause unnecessary loss, and this glass envelope also needs import at present, consume a large amount of foreign exchanges,, can only be used for pipeline though disclosed the spray thrower that adopts the marmem temperature-sensitive to drive at CN2059366U, can not stop voluntarily, structure is also extremely complicated.
The purpose of this utility model is to provide a kind of fire extinguisher multiple repeatedly to use with returning, and can deform in arbitrary design temperature between 50-130 ℃ and opens the memorial alloy automatic drive that produces pressure and open extinguisher valve automatically.
This practicality is implemented like this, be to adopt novel Ni-Ti or Cu-Zn-Al memorial alloy to make the bow type as temperature-sensing element, be contained in the framework, this framework has three big hand holes, and is provided with screw rod with fixing bow type memorial alloy sheet be provided with set bolt and make frame fixation on fire extinguisher top.When temperature reaches setting value, this bow type memorial alloy sheet is out of shape suddenly and opens, the pressure that produces is greater than 10kg, be enough to open the valve on fire extinguisher top, extinguishing material just can spray automatically, when scene temperature on fire drops to certain value, bow type memorial alloy sheet shrinks and returns to original state, extinguisher valve is closed again, and extinguishing material is no longer ejection just, can open automatically and close automatically.
Preference of the present utility model now in conjunction with the accompanying drawings 1 couple of the present invention elaborate, but do not limit the scope of the invention.
Fig. 1 is the profile that bow type memorial alloy temperature-sensitive automatic drive of the present utility model is connected with fire extinguisher.Wherein 1 is framework, the 2nd, and bow type memorial alloy sheet of the present utility model, the 3rd, the big hand hole of garden cartridge type framework, the 4th, screw rod on the framework, the 5th, extinguisher valve top, the 6th, fire extinguisher ejiction opening.The 7th, set bolt, the 8th, fire extinguisher neck, the 9th, nut.During installation, punching on screw rod 4 earlier, bow type memorial alloy sheet is inserted and welds, then screw rod 4 is passed the hole of fixed frame 1 upper end, and tighten with nut 9, use set bolt 7 at last, framework 1 is connected with fire extinguisher neck 8, at this moment the bottom of bow type memorial alloy sheet 2 is pressed in extinguisher valve header 5 places.Alloy sheet just distortion opens, and its tension force is opened the valve of fire extinguisher greater than 10kg, and extinguishing material is put out a fire with regard to ejection, and when scene temperature drops to when being lower than 60 ℃, this bow type memorial alloy sheet just shrinks and returns to original state, and the valve of fire extinguisher is just closed.
Advantage of the present utility model is as follows:
1, scene temperature is appointed between 50-130 ℃ when establishing a temperature value, thus this bow type shape memory alloy just distortion open the valve of automatically opening fire extinguisher, extinguishing material is through the spout ejection and put out a fire. When scene temperature dropped to setting value, this bow type shape memory alloy was just received Contracting returns to original state, extinguisher valve autoshutdown.
2, can repeated multiple times use.
3, simple structure, easy for installation, effective, sensitive reliable.
Claims (2)
1, a kind of fire extinguisher is characterized in that with memorial alloy bow type temperature-sensitive automatic drive:
(1) bow type memorial alloy sheet 2 tops are passed screw rod 4 and are welded, and are fixed on the framework 1 with nut, and its underpart then is pressed in the hand fire extinguisher valve top part,
(2) garden tubular framework 1 is neck 8 places that are fixed on hand fire extinguisher with set bolt 7.
2,, it is characterized in that described bow type memorial alloy sheet is to adopt Ni-Ti or Cu-Zn-Al memorial alloy according to the automatic drive of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92244129 CN2140244Y (en) | 1992-12-18 | 1992-12-18 | Memory alloy bow-shaped temp sensing driver for fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92244129 CN2140244Y (en) | 1992-12-18 | 1992-12-18 | Memory alloy bow-shaped temp sensing driver for fire extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2140244Y true CN2140244Y (en) | 1993-08-18 |
Family
ID=33783475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92244129 Expired - Fee Related CN2140244Y (en) | 1992-12-18 | 1992-12-18 | Memory alloy bow-shaped temp sensing driver for fire extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2140244Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757758B (en) * | 2008-12-25 | 2012-05-23 | 王德忠 | Device and method for breaking container containing flowable substance |
| CN111677436A (en) * | 2020-06-04 | 2020-09-18 | 湖北航天技术研究院特种车辆技术中心 | Hoist and mount formula work ladder fixing device |
-
1992
- 1992-12-18 CN CN 92244129 patent/CN2140244Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757758B (en) * | 2008-12-25 | 2012-05-23 | 王德忠 | Device and method for breaking container containing flowable substance |
| CN111677436A (en) * | 2020-06-04 | 2020-09-18 | 湖北航天技术研究院特种车辆技术中心 | Hoist and mount formula work ladder fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |