CN201715223U - Valve vane profile for fire-fighting smoke exhaust system - Google Patents
Valve vane profile for fire-fighting smoke exhaust system Download PDFInfo
- Publication number
- CN201715223U CN201715223U CN2010202472485U CN201020247248U CN201715223U CN 201715223 U CN201715223 U CN 201715223U CN 2010202472485 U CN2010202472485 U CN 2010202472485U CN 201020247248 U CN201020247248 U CN 201020247248U CN 201715223 U CN201715223 U CN 201715223U
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- China
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- profile
- fire
- section
- semicircle
- exhaust system
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- 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 - Lifetime
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a valve vane profile for a fire-fighting smoke exhaust system. The entire profile is long strip-shaped, the cross section of the profile has the following characteristics that the middle part is a convex semicircle, each of two sides of the semicircle is connected with an edge, and both edges are symmetrical and have the same length; the end points of both symmetrical edges are respectively connected with bottomless triangles which have the same shape and opposite directions; and the ratio of the strip length of the cross section to the diameter of the semicircle which is convex in the middle is 25:1, and the ratio of the strip length of the cross section to the length of two side edges of the bottomless triangle is 8.5:1. The valve vane profile for the fire-fighting smoke exhaust system is simply and rapidly machined, and the working efficiency can be improved by more than five times; the valve vane profile for the fire-fighting smoke exhaust system has stable quality, and the sizes of products are coincident and the shape is trim and attractive; and the profile formed has the advantages of high strength, difficult deformation and the like, and is simple in manufacture and low in manufacture cost.
Description
Technical field
The utility model relates to fire-fighting purging system valve vane section bar.
Background technique
In the valve that the fire-fighting purging system uses, the valve blade is the outer frame material that connects valve such as fire and smoke exhaust, requires consistent size, profile smooth.Present valve blade is to adopt the high-quality cold rolled sheet, by the workman through mechanical guillotine shear blanking, multiple working procedures such as hydraulic bending press flanging process, operation is many during this valve blade processing, processes long in time limitly, and efficient is low, labor intensity is big, the cost of production height, the quality of product can be different and different along with the ripe refining degree of different operating workman's technology, thereby cause the instability of quality.
The model utility content
The utility model purpose is to overcome the deficiency of prior art, provides a kind of low fire-fighting purging system of simple and fast, steady quality, cost of production of processing with valve blade special-purpose section.
The technical solution of the utility model is: whole one-tenth long strip, its cross-section has following feature: the middle part is the semicircle of a projection, respectively be connected with a symmetrical limit that length is identical in the semicircle both sides, the end points place on two symmetrical limits connects with a no base triangle that profile is identical, direction is opposite respectively; Described cross section long and semicircle diameter ratio intermediate projections are 25:1, and the ratio that described cross section long and both sides triangle do not have bottom side length is 8.5:1.
The utility model processing simple and fast, working efficiency can improve more than 5 times, the product size unanimity of steady quality, production, and profile is smooth attractive in appearance, and the section bar after the moulding has intensity height, advantage such as not yielding; Make simple, alleviated working strength of workers, low cost of manufacture.
Description of drawings
Accompanying drawing is a cross-section of the present utility model structural representation.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment 1:
The valve blade special-purpose section of present embodiment is by a roll forming, whole one-tenth long strip, its cross-section is that the semicircle by an intermediate projections is a central point 1, respectively be connected with a symmetrical limit 2 that length is identical in the semicircle both sides, the end points place on two symmetrical limits is connected with 4 with a no base triangle that profile is identical, direction is opposite 3 respectively, described cross section long and semicircle diameter ratio intermediate projections are 25:1, and the ratio that described cross section long and both sides triangle do not have bottom side length is 8.5:1.
Claims (1)
1. fire-fighting purging system valve vane section bar, it is characterized in that, whole one-tenth long strip, its cross-section has following feature: the middle part is the semicircle of a projection, respectively be connected with a symmetrical limit that length is identical in the semicircle both sides, the end points place on two symmetrical limits connects with a no base triangle that profile is identical, direction is opposite respectively; Described cross section long and semicircle diameter ratio intermediate projections are 25:1, and the ratio that described cross section long and both sides triangle do not have bottom side length is 8.5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202472485U CN201715223U (en) | 2010-07-05 | 2010-07-05 | Valve vane profile for fire-fighting smoke exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202472485U CN201715223U (en) | 2010-07-05 | 2010-07-05 | Valve vane profile for fire-fighting smoke exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715223U true CN201715223U (en) | 2011-01-19 |
Family
ID=43461222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202472485U Expired - Lifetime CN201715223U (en) | 2010-07-05 | 2010-07-05 | Valve vane profile for fire-fighting smoke exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201715223U (en) |
-
2010
- 2010-07-05 CN CN2010202472485U patent/CN201715223U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110119 |