CN201284853Y - Fireproof check valve for residential housing kitchen and bathroom exhaustion duct - Google Patents
Fireproof check valve for residential housing kitchen and bathroom exhaustion duct Download PDFInfo
- Publication number
- CN201284853Y CN201284853Y CNU2008201342792U CN200820134279U CN201284853Y CN 201284853 Y CN201284853 Y CN 201284853Y CN U2008201342792 U CNU2008201342792 U CN U2008201342792U CN 200820134279 U CN200820134279 U CN 200820134279U CN 201284853 Y CN201284853 Y CN 201284853Y
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- CN
- China
- Prior art keywords
- fire prevention
- valve body
- prevention valve
- check valve
- fireproofing
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- Expired - Fee Related
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Abstract
The utility model relates to a fireproofing check valve for the exhaust passage of kitchens and washrooms of residential housing, which is provided with a fireproofing valve body (2) and a fireproofing valve plate (12). The utility model is characterized in that a fireproofing valve seat (1) is arranged on the horizontal airflow passage of the fireproofing valve body; the fireproofing valve seat arranged along two side walls of the fireproofing valve body is provided with a guide groove (14) attached with the fireproofing valve seat; a hot melt sheet (10) which is downwards vertical is fixed on the upper wall surface of the cavity of the fireproofing valve body (2); the lower end of the vertical fireproofing valve plate (12) extends above the guide groove (14) of the cavity of the valve body in a movable fit way and is connected with the lower end of the hot melt sheet (10) to be supported on the fireproofing valve body (2); the air inlet of the fireproofing valve body is in series connection with a check valve body (3) through a flange (1); and a check valve seat (5) and a check valve plate (4) installed on a rotating shaft (6) are arranged in the check valve body. The utility model has the advantages of simple structure, easy installation and reliable fireproofing operation.
Description
Technical field
The utility model belongs to a building air exhausting device, is specifically related to a kind of fire-preventing check valve that is used for the building air exhaust channel.
Background technique
Existing building is provided with shared air exhaust channel more, each layer kitchen, toilet are communicated with shared air exhaust channel respectively, for preventing that the foul smell in the shared air exhaust channel from recharging, be equipped with safety check between each kitchen, toilet and the shared air exhaust channel, simultaneously, when preventing other floor breaking out of fire, pyrotechnics in the shared air exhaust channel pours in down a chimney into this chamber, family, and NBS also requires at this position fire-closing valve to be set, when the breaking out of fire of other room, automatic-closing valve prevents fire spread.The structure more complicated that existing fire-preventing check valve has, what have is hinge structure, closing motion is insensitive.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of simple in structure, easy-to-install residential housing kitchen guarding air outlet flue fire-preventing check valve.
The technological scheme that addresses the above problem is (referring to implementing illustration): the utility model be provided with bring gas port and air outlet into level to fire prevention valve body (2), fire prevention valve block (12), it is characterized in that: the level at the fire prevention valve body is provided with fire prevention valve seat (1) on air-flow path, fire prevention valve seat along fire prevention valve body two side is provided with the guiding groove (14) that is pasting the valve seat of preventing fires, be fixed with the hot melt sheet (10) that erects downwards on fire prevention valve body (2) the inner chamber upper wall surface, vertically to fire prevention valve block (12) lower end puts in guiding groove (14) top of body cavity movingly, and be connected with hot melt sheet (10) lower end, be supported on fire prevention valve seat (2) top, fire prevention valve body suction port is connected in series with check valve body (3) by flange (15), is provided with Boilor check valve seat (5) in the check valve body and is contained in non-return valve block (4) in the rotating shaft (6).
Working principle of the present utility model is: when kitchen ventilator or ventilating fan start, flue gas blows safety check valve block (4) open, and the fire prevention valve body by the fire prevention valve block is opened flows in the air outlet flue smoothly, does not have the air curtain resistance; When lampblack exhauster or ventilating fan shutdown, under the upward flow in air outlet flue and the synergy of safety check, the remarkable reduction pressure of floor exhaust ports of not starting shooting, and cooperate safety check for closed condition to form to dredge and bridging is closed double effects, work as breaking out of fire, when reaching uniform temperature in the air outlet flue, hot melt sheet (10) fusing in the fire prevention valve body, fire prevention valve block (12) loses and is supported by gravity and falls along guiding groove (14), air-flow path in the valve body is blocked, indoor and shared air exhaust channel is isolated mutually, prevent spreading of fire.
The utlity model has simple in structurely, be easy to install the advantage of fire prevention reliable in action.
Description of drawings
Fig. 1, the utility model example structure schematic representation
The local structure for amplifying of the B of Fig. 2, Fig. 1 illustrates intention
The A of Fig. 3, Fig. 1 is to structural representation
1-fire prevention valve seat 2-fire prevention valve body 3-check valve body 4-non-return valve block 5-Boilor check valve seat 6-rotating shaft 7-screw 8-screw 9-connecting sheet 10-hot melt sheet 11-guide cylinder 12-fire prevention valve block 13-lug, nib 14-guiding groove 15-flange
Specific embodiments
It is square tubular that this example fire prevention valve body 2 is cross section, air-flow path is provided with fire prevention valve seat 1 in the valve body, be respectively equipped with the lug, nib 13 parallel on the fire prevention valve body 2 inner chamber two side walls with the valve seat 1 of preventing fires, lug, nib constitutes guiding groove 14 with the fire prevention valve seat, vertically to fire prevention valve block 12 is positioned at fire prevention valve body top, its underpart from fire prevention valve body opening movingly put in guiding groove 14 tops in the fire prevention valve body, be fixed with hot melt sheet 10 vertically downward on the body cavity upper wall surface, fixedly connected with L shaped connecting sheet 9 walls on being welded on the body cavity upper wall surface by screw 7 in hot melt sheet 10 upper ends, the lower end is connected with fire prevention valve block lower end by screw 8, hot melt sheet 10 lower ends are barb-like, the screw 8 that is fixed on fire prevention valve block 12 lower ends is supported on the barb of hot melt sheet lower end, guiding groove 14 and screw 8 valve block of will preventing fires is supported on upper, work as breaking out of fire, with in the shared air exhaust channel that fire prevention valve body air outlet is communicated with during generation high temperature pyrotechnics, hot melt sheet 10 fusing in the fire prevention valve body, fire prevention valve block 12 loses to prop up and is supported by gravity along guiding groove 14 free falls, air-flow path in the valve body is blocked, indoor and shared air exhaust channel is isolated mutually.In the time of need more renewing the hot melt sheet, fixedlyed connected with connecting sheet 9 in hot melt sheet 10 upper ends with screw 7, and the valve block 12 of will prevent fires mentions, with screw 8 hot melt sheet 10 lower ends are connected with fire prevention valve block lower end, it is upper to make the valve block of preventing fires be in valve seat again.
Fire prevention valve body suction port is connected with check valve body 3 by flange 15, be provided with Boilor check valve seat 5 and non-return valve block 4 in the check valve body, non-return valve block 4 tops are contained in the rotating shaft on 6, the little stress surface non-return valve block of rotating shaft top is positioned at Boilor check valve seat 5 upstreams one sides (side of check valve body suction port), the big stress surface non-return valve block of rotating shaft below is positioned at downstream one side (check valve body air outlet one side) of Boilor check valve seat, indoor air flow can back down non-return valve block bottom, flow into highway, when the air-flow of highway acts on the non-return valve block, the non-return valve block of bottom is promptly withstood by Boilor check valve seat, make the air-flow of highway can not inlet chamber in.
Fire prevention valve body air outlet is communicated with public air exhaust channel by guide cylinder 11.
Claims (4)
1, a kind of residential housing kitchen guarding air outlet flue fire-preventing check valve, be provided with the level of bringing gas port and air outlet into to fire prevention valve body (2), fire prevention valve block (12), it is characterized in that: the level at the fire prevention valve body is provided with fire prevention valve seat (1) on air-flow path, fire prevention valve seat along fire prevention valve body two side is provided with the guiding groove (14) that is pasting the valve seat of preventing fires, be fixed with the hot melt sheet (10) that erects downwards on fire prevention valve body (2) the inner chamber upper wall surface, vertically to fire prevention valve block (12) lower end puts in guiding groove (14) top of body cavity movingly, and be connected with hot melt sheet (10) lower end, be supported on fire prevention valve seat (2) top, fire prevention valve body suction port is connected in series with check valve body (3) by flange (15), is provided with Boilor check valve seat (5) in the check valve body and is contained in non-return valve block (4) in the rotating shaft (6).
2, residential housing kitchen guarding air outlet flue fire-preventing check valve according to claim 1, it is characterized in that: be respectively equipped with the lug, nib (13) parallel with the valve seat of preventing fires (1) on described fire prevention valve body (2) the inner chamber two side walls, lug, nib constitutes described guiding groove (14) with the fire prevention valve seat.
3, residential housing kitchen guarding air outlet flue fire-preventing check valve according to claim 1, it is characterized in that: fixedly connected with L shaped connecting sheet (9) wall on being welded on the body cavity upper wall surface by screw (7) in described hot melt sheet (10) upper end, and the lower end is connected with fire prevention valve block lower end by screw (8).
4, residential housing kitchen guarding air outlet flue fire-preventing check valve according to claim 1, it is characterized in that: described hot melt sheet (10) lower end is barb-like, and the screw (8) that is fixed on fire prevention valve block (12) lower end is supported on the barb of hot melt sheet lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201342792U CN201284853Y (en) | 2008-10-10 | 2008-10-10 | Fireproof check valve for residential housing kitchen and bathroom exhaustion duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201342792U CN201284853Y (en) | 2008-10-10 | 2008-10-10 | Fireproof check valve for residential housing kitchen and bathroom exhaustion duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284853Y true CN201284853Y (en) | 2009-08-05 |
Family
ID=40949838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201342792U Expired - Fee Related CN201284853Y (en) | 2008-10-10 | 2008-10-10 | Fireproof check valve for residential housing kitchen and bathroom exhaustion duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284853Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606778A (en) * | 2011-01-25 | 2012-07-25 | 张琦 | Functional valve |
| CN102606780A (en) * | 2011-01-25 | 2012-07-25 | 张琦 | Multifunctional valve structure |
-
2008
- 2008-10-10 CN CNU2008201342792U patent/CN201284853Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606778A (en) * | 2011-01-25 | 2012-07-25 | 张琦 | Functional valve |
| CN102606780A (en) * | 2011-01-25 | 2012-07-25 | 张琦 | Multifunctional valve structure |
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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: 20090805 Termination date: 20131010 |