CN201513609U - Combined fire-resistant check valve - Google Patents
Combined fire-resistant check valve Download PDFInfo
- Publication number
- CN201513609U CN201513609U CN200920073094XU CN200920073094U CN201513609U CN 201513609 U CN201513609 U CN 201513609U CN 200920073094X U CN200920073094X U CN 200920073094XU CN 200920073094 U CN200920073094 U CN 200920073094U CN 201513609 U CN201513609 U CN 201513609U
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- CN
- China
- Prior art keywords
- valve
- fire
- air outlet
- torsion spring
- resistant
- 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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- Safety Valves (AREA)
- Check Valves (AREA)
Abstract
A combined fire-resistant check valve comprises a check valve and a fire-resistant valve, and is characterized in that a check valve piece fit to an air outlet a is arranged inside a valve body of the check valve; a rotating shaft a is sleeved with a shaft sleeve and a torsion spring a arranged at the lower end of the check valve piece; a fire-resistant valve piece fit to an air outlet b is arranged on the air outlet b formed on the valve body of the fire-resistant valve; a rotating shaft b is sleeved with the shaft sleeve arranged at the lower end of the fire-resistant valve piece; a shaft pin is fixed on a bracket arranged at the lower end of the valve body; the shaft pin is sleeved with a torsion spring b and a valve bolt; the torsion spring b stays in a helical compression state; when the flue-gas temperature in an exhaust passage reaches 70 DEG C, a fusible piece fixed at the lower part of the valve bolt is fused; the fire-resistant valve piece hooked by the fusible piece is released; and meanwhile, torsion spring b is reset, the bound force drives the valve bolt to rotate to prop against the fire-resistant valve piece; and the air outlet b is closed up. The check valve has the advantages that the check valve is closed, and flue gas in the exhaust passage cannot move indoors; when an indoor exhaust device starts up, the exhausted flue gas overcomes the spring torque force, blows the check valve piece open, and enters the exhaust passage; the fire-resistant valve is in the open state, and the indoor flue gas can be exhausted normally; when flue-gas temperature in the exhaust passage reaches 70 DEG C, the fusible piece operates, the fire-resistant valve piece is released, and the torsion spring is reset to press the valve bolt to prop the fire-resistant valve piece; and the air outlet of the fire-resistant valve is closed up, smoke and fire in the exhaust passage cannot extend along the exhaust passage, so that fire hazard can be avoided.
Description
Technical field
The utility model relates to a kind of fire-preventing check valve of building on the dwelling house air outlet flue, particularly a kind of combined type fire-preventing check valve.
Background technique
At present, fire-closing valve, safety check on the market on the shared air outlet flue of building dwelling house, most employing fire-closing valves and the product mix of safety check kind are used during design.
The model utility content
The purpose of this utility model provides the combined type fire-preventing check valve that a kind of existing fire-closing valve function has the safety check function again.
The technical solution of the utility model is a kind of combined type fire-preventing check valve of design, comprise safety check, fire-closing valve, it is characterized in that: safety check is to have a slice non-return valve block and air outlet a to match in valve body, the axle sleeve of non-return valve block lower end and torsion spring a are enclosed within on the rotating shaft a, torsion spring a compressing non-return valve block, fire-closing valve is to have a slice fire prevention valve block and air outlet b to match on the b of valve body air outlet, the axle sleeve of fire prevention valve block lower end is enclosed within on the rotating shaft b, pivot pin is fixed on the carriage of valve body lower end, torsion spring b and valve cock are enclosed within on the pivot pin, torsion spring b is in the helical compression state usually, when flue-gas temperature in the air outlet flue reaches 70 ℃, is thrown off by the fire prevention valve block that fuse sheet catches on, torsion spring b resets simultaneously, rebounding force forces valve cock to rotate, and withstands the fire prevention valve block, closes air outlet b.
The utility model has the advantages that safety check is in closed condition usually, in the air outlet flue flue gas can inlet chamber in, when the indoor exhaust device starts, the torsion that the flue gas of discharging overcomes torsion spring blows the non-return valve block open and enters in the air outlet flue, fire-closing valve is in open mode usually, flue gas can normally be discharged, when flue-gas temperature in the air outlet flue reaches 70 ℃, the fuse sheet action, the fire prevention valve block is thrown off, and the torsion spring compressing valve cock that resets withstands the fire prevention valve block, closes the air outlet, flue gas can not spread along air outlet flue in the air outlet flue, causes fire.
Description of drawings
Accompanying drawing is a structural profile schematic representation of the present utility model.
Number in the accompanying drawing is expressed as respectively: valve body 1, air outlet a2, non-return valve block 3, rotating shaft a4, torsion spring a5, air outlet b6, fire prevention valve block 7, rotating shaft b8, carriage 9, pivot pin 10, torsion spring b11, valve cock 12, fuse sheet 13, air outlet flue 14.
Embodiment
Embodiment is that the combined type fire-preventing check valve is installed on building dwelling house air outlet flue 14 suction ports; Safety check is to have a slice non-return valve block 3 and air outlet a2 to match in valve body 1, the axle sleeve of non-return valve block 3 bottoms and torsion spring a5 are enclosed within on the rotating shaft a4 of a2 bottom, air outlet, torsion spring a5 compressing non-return valve block 3, fire-closing valve is to have a slice fire prevention valve block 7 to match with air outlet b6 on valve body 14 air outlet b6, the axle sleeve of fire prevention valve block 7 bottoms is enclosed within on the rotating shaft b8 of b6 bottom, air outlet, pivot pin 10 is fixed on that torsion spring b11 and valve cock 12 are enclosed within on the pivot pin 10 on the carriage 9 of valve body 1 lower end, torsion spring 11 compressing valve cocks 12, the fuse sheet 13 that is fixed on valve cock 12 bottoms catches on fire prevention valve block 7, usual safety check is in closed condition, flue gas in the air outlet flue 14 can inlet chamber in, when the indoor exhaust device starts, the torsion that the flue gas of discharging overcomes torsion spring a5 blows non-return valve block 3 open and enters in the air outlet flue 14, fire-closing valve is in open mode usually, flue gas can normally be arranged, when flue-gas temperature in the air outlet flue reaches 70 ℃, fuse sheet 13 actions, fire prevention valve block 7 is thrown off, torsion spring b11 compressing valve cock 12 valve block 7 of will preventing fires withstands, close air outlet b6, flue gas can not spread along air outlet flue 14 in the air outlet flue 14, causes fire.
Claims (3)
1. combined type fire-preventing check valve, comprise safety check, fire-closing valve, it is characterized in that: safety check is to have a slice non-return valve block (3) and air outlet a (2) to match in valve body (1), the axle sleeve of non-return valve block (3) lower end and torsion spring a (5) are enclosed within on the rotating shaft a (4), fire-closing valve is to have a slice fire prevention valve block (7) and air outlet b (6) to match on valve body (1) air outlet b (6), the axle sleeve of fire prevention valve block (7) lower end is enclosed within on the rotating shaft b (8), on the carriage (9) of pivot pin (10) fixed valve body 1 lower end, torsion spring b (11) and valve cock (12) are enclosed within on the pivot pin (10), and the fuse sheet (13) that is fixed on valve cock (12) bottom catches on fire prevention valve block (7).
2. combined type fire-preventing check valve according to claim 1, it is characterized in that: be in open mode usually, when flue-gas temperature reaches 70 ℃ in the air outlet flue (14), fuse sheet (13) action, fire prevention valve block (7) is thrown off, torsion spring b (11) resets, and compressing valve cock (12) withstands fire prevention valve block (7), closes air outlet b (6).
3. combined type fire-preventing check valve according to claim 2, it is characterized in that: described torsion spring b (11), usually be in the helical compression state, when flue-gas temperature reaches 70 ℃ in the air outlet flue (14), fuse sheet (13) fusing, torsion spring b (11) resets, and rebounding force forces valve cock (12) to rotate, withstand fire prevention valve block (7), close air outlet b (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920073094XU CN201513609U (en) | 2009-05-31 | 2009-05-31 | Combined fire-resistant check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920073094XU CN201513609U (en) | 2009-05-31 | 2009-05-31 | Combined fire-resistant check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513609U true CN201513609U (en) | 2010-06-23 |
Family
ID=42485019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920073094XU Expired - Fee Related CN201513609U (en) | 2009-05-31 | 2009-05-31 | Combined fire-resistant check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513609U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090346A (en) * | 2016-08-09 | 2016-11-09 | 杭州小米环境科技有限公司 | A kind of fire-preventing check valve bindiny mechanism and fire-preventing check valve |
| CN110440036A (en) * | 2019-07-19 | 2019-11-12 | 广州市法玉环保科技有限公司 | A kind of fire-preventing check valve |
| US10695598B2 (en) | 2017-08-28 | 2020-06-30 | Justrite Manufacturing Company, Llc | Vented safety cabinet with thermally-actuated damper |
| CN113431939A (en) * | 2021-06-28 | 2021-09-24 | 深圳市万居科技股份有限公司 | Exhaust valve and mounting method thereof |
-
2009
- 2009-05-31 CN CN200920073094XU patent/CN201513609U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090346A (en) * | 2016-08-09 | 2016-11-09 | 杭州小米环境科技有限公司 | A kind of fire-preventing check valve bindiny mechanism and fire-preventing check valve |
| CN106090346B (en) * | 2016-08-09 | 2018-12-25 | 杭州小米环境科技有限公司 | A kind of fire-preventing check valve bindiny mechanism and fire-preventing check valve |
| US10695598B2 (en) | 2017-08-28 | 2020-06-30 | Justrite Manufacturing Company, Llc | Vented safety cabinet with thermally-actuated damper |
| US11957942B2 (en) | 2017-08-28 | 2024-04-16 | Justrite Manufacturing Company, L.L.C. | Vented safety cabinet with thermally-actuated damper |
| CN110440036A (en) * | 2019-07-19 | 2019-11-12 | 广州市法玉环保科技有限公司 | A kind of fire-preventing check valve |
| CN113431939A (en) * | 2021-06-28 | 2021-09-24 | 深圳市万居科技股份有限公司 | Exhaust valve and mounting method thereof |
| CN113431939B (en) * | 2021-06-28 | 2023-08-04 | 深圳市万居科技股份有限公司 | Exhaust valve and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20110531 |