CN201348075Y - Fireproofing check valve - Google Patents
Fireproofing check valve Download PDFInfo
- Publication number
- CN201348075Y CN201348075Y CNU2008201842473U CN200820184247U CN201348075Y CN 201348075 Y CN201348075 Y CN 201348075Y CN U2008201842473 U CNU2008201842473 U CN U2008201842473U CN 200820184247 U CN200820184247 U CN 200820184247U CN 201348075 Y CN201348075 Y CN 201348075Y
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- CN
- China
- Prior art keywords
- check valve
- valve
- fire
- valve body
- fireproofing
- 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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Abstract
The utility model relates to a fireproofing check valve which comprises a valve body (4), a valve seat (7) and a check valve piece (1). The utility model is characterized in that a weight bar which is supported by a colliquable piece (2) and is in an uplifting state is arranged above the back of the check valve piece (1); and one end of the colliquable piece (2) is connected with the valve body (4) and the other end is connected with the weight bar. The fireproofing check valve combines a fireproofing valve piece and the check valve piece into a whole; when the weight bar is uplifted, smoke gas flows into exhaust passages and the fireproofing check valve has the non-return function; and when the weight bar naturally resets, gas flow passages in the valve body are cut off by the check valve piece and the reproofing check valve has the fireproofing function. The utility model has the advantages of simple structure, reliable operation and easy installation.
Description
Technical field
The utility model belongs to the building air exhausting device, is specifically related to the fire-preventing check valve that a kind of residential housing kitchen guarding air outlet flue is used.
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-closing valve has, the closing motion that has is insensitive, and what have closes the back if there is not the professional workforce just the fire-closing valve of closing can't be opened.
Chinese patent application number: 200820134279.2, title: a kind of residential housing kitchen guarding air outlet flue fire-preventing check valve; Chinese patent application number: 200820134280.5, title: residential housing kitchen guarding air outlet flue fire-preventing check valve.The fire prevention valve block and the non-return valve block of these two pieces of patents are separate.
The model utility content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, will prevent fires valve block and non-return valve block of the fire-preventing check valve that provides a kind of residential housing kitchen guarding air outlet flue to use, this fire-preventing check valve unites two into one, and simple in structure, reliable in action, is easy to install.
Technical solution of the present utility model is: a kind of fire-preventing check valve, comprise valve body, valve seat, non-return valve block, be provided with above non-return valve block rear portion by fuse sheet and support the gravity rod that is in the state of lifting, fuse sheet one end is connected with valve body, and the other end is connected with gravity rod.
As a kind of preferred version of the present utility model, described gravity rod one end and valve body flexibly connect, and the other end is connected with fuse sheet.
As another preferred version of the present utility model, the top of described valve body has perforate, and described gravity rod is inserted in the perforate on valve body top, and the lower end of gravity rod is connected with fuse sheet.
Working principle of the present utility model is: the safety check sheet is called the front portion of non-return valve block towards a side of suction port, and the safety check sheet is called the rear portion of non-return valve block towards a side of air outlet.When kitchen ventilator or ventilating fan start, flue gas blows the safety check sheet open and flows in the air outlet flue, and gravity rod was supported, was in the state of lifting by fuse sheet this moment, can not influence the unidirectional folding of non-return valve block.When breaking out of fire, reach uniform temperature in the air outlet flue, fuse sheet fusing, gravity rod loses support, naturally reset, block the non-return valve block from behind, it can not be opened, air-flow path in the valve body is blocked, indoor and shared air exhaust channel is isolated mutually, play anti-fire action.Realize non-return and frpf dual functions thus.
The utility model compared with prior art has following advantage: will prevent fires valve block and non-return valve block of fire-preventing check valve of the present utility model unites two into one, and flue gas flowed in the air outlet flue when gravity rod lifted, and played the non-return effect; The non-return valve block blocked the air-flow path in the valve body when gravity rod resetted naturally, played anti-fire action.The utility model is simple in structure, reliable in action, be easy to install.
Description of drawings
Structural representation when Fig. 1 lifts for the utility model embodiment one fire-preventing check valve.
Structural representation when Fig. 2 resets for the utility model embodiment one fire-preventing check valve.
Fig. 3 is that the A of Fig. 1 is to view.
Fig. 4 is that the B of Fig. 1 is to view.
Fig. 5 is that the C of Fig. 1 is to view.
Structural representation when Fig. 6 lifts for the utility model embodiment two fire-preventing check valve.
Structural representation when Fig. 7 resets for the utility model embodiment two fire-preventing check valve.
Fig. 8 is that the A of Fig. 6 is to view.
Fig. 9 is that the B of Fig. 6 is to view.
Among the figure, 1-non-return valve block, 2-fuse sheet, 31-gravity rod, 32-gravity rod, 4-valve body, 5-rotating shaft, 6-hook, 7-valve seat, 8-lug, 9-guide channel, 10-perforate.
Embodiment
Below with reference to accompanying drawing embodiment of the present utility model is described.
Embodiment one (Fig. 1～Fig. 5):
Among the figure, fire-preventing check valve comprises valve body 4, valve seat 7 and non-return valve block 1, above non-return valve block 1 rear portion, be provided with by fuse sheet 2 and support the gravity rod 31 that is in the state of lifting, the top of described valve body 4 is provided with hook 6, fuse sheet 2 one ends are connected on the hook 6 of valve body 4, and the other end is connected an end of gravity rod 31.The top of described valve body 4 is provided with a downward lug 8, gravity rod 31 1 ends and lug 8 are connected (any flexible connection can) by screw, the other end and fuse sheet 2 are connected by screw, the screw joint at two ends is unfixing tight, thereby guarantees that gravity rod 31 and fuse sheet 2 can freely rotate.Rotating shaft 5 is positioned at the middle and upper part of non-return valve block 1, the non-return valve block on rotating shaft 5 tops is positioned at the front portion of top valve seat, the non-return valve block of rotating shaft 5 bottoms is positioned at the rear portion of lower valve seat, and (valve seat surface is called the front portion of valve seat to a side of suction port, and valve seat surface is called the rear portion of valve seat to a side of air outlet.) non-return valve block 1 can only open to the rear portion of valve seat is unidirectional.Valve body 4 is connected with outside shared air exhaust channel via guide channel 9.
Structural representation when Fig. 1 lifts for this embodiment's fire-preventing check valve; Structural representation when Fig. 2 resets for this embodiment's fire-preventing check valve.Generally, when kitchen ventilator or ventilating fan start, flue gas blows non-return valve block 1 open and flows in the air outlet flue, and gravity rod 31 was supported by fuse sheet 2 and lifted this moment, can not influence the unidirectional folding of non-return valve block 1.When breaking out of fire, reach uniform temperature in the air outlet flue, fuse sheet 2 fusing, gravity rod 31 loses support, naturally reset, block non-return valve block 1 from behind, it can not be opened, air-flow path in the valve body is blocked, indoor and shared air exhaust channel is isolated mutually, play anti-fire action.Realize non-return and frpf dual functions thus.
Embodiment two (Fig. 6～Fig. 9):
Among the figure, fire-preventing check valve comprises valve body 4, valve seat 7 and non-return valve block 1, above non-return valve block 1 rear portion, be provided with by fuse sheet 2 and support the gravity rod 32 that is in the state of lifting, the top of described valve body 4 has perforate 10, gravity rod 32 is inserted in 10 li of the perforates on valve body 4 tops, and the hitch aperture is reserved in the lower end of gravity rod 32; The top of described valve body 4 also is provided with hook 6 on the next door of perforate 10, fuse sheet 2 one ends are connected on the hook 6 of valve body 4, and the other end is connected in the reservation hitch aperture of gravity rod 32 lower ends by screw.
Rotating shaft 5 is positioned at the middle and upper part of non-return valve block 1, the non-return valve block on rotating shaft 5 tops is positioned at the front portion of top valve seat, the non-return valve block of rotating shaft 5 bottoms is positioned at the rear portion of lower valve seat, and (valve seat surface is called the front portion of valve seat to a side of suction port, and valve seat surface is called the rear portion of valve seat to a side of air outlet.) non-return valve block 1 can only open to the rear portion of valve seat is unidirectional.Valve body 4 is connected with outside shared air exhaust channel via guide channel 9.
Structural representation when Fig. 6 lifts for this embodiment's fire-preventing check valve; Structural representation when Fig. 7 resets for this embodiment's fire-preventing check valve.Working principle is with embodiment one.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; every foundation technical spirit of the present utility model all still belongs to the protection domain of technical solutions of the utility model to any simple modification, equivalent variations and modification that above embodiment did.
The content that is not described in detail in the utility model specification belongs to related domain professional and technical personnel's known technology.
Claims (5)
1, a kind of fire-preventing check valve, comprise valve body (4), valve seat (7) and non-return valve block (1), it is characterized in that: be provided with in the top at non-return valve block (1) rear portion by fuse sheet (2) and support the gravity rod that is in the state of lifting, fuse sheet (2) one ends are connected with valve body (4), and the other end is connected with gravity rod.
2, fire-preventing check valve according to claim 1 is characterized in that: described gravity rod one end and valve body (4) flexibly connect, and the other end is connected with fuse sheet (2).
3, fire-preventing check valve according to claim 2 is characterized in that: the top of described valve body (4) is provided with a downward lug (8), and described gravity rod one end and lug (8) flexibly connect, and the other end is connected with fuse sheet (2).
4, fire-preventing check valve according to claim 1 is characterized in that: the top of described valve body (4) has perforate (10), and described gravity rod is inserted in perforate (10) lining on valve body (4) top, and the lower end of gravity rod is connected with fuse sheet (2).
5, according to each described fire-preventing check valve in the claim 1～4, it is characterized in that: the top of described valve body (4) is provided with hook (6), and described fuse sheet (2) one ends are connected on the hook (6) of valve body (4), and the other end is connected an end of gravity rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201842473U CN201348075Y (en) | 2008-12-29 | 2008-12-29 | Fireproofing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201842473U CN201348075Y (en) | 2008-12-29 | 2008-12-29 | Fireproofing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348075Y true CN201348075Y (en) | 2009-11-18 |
Family
ID=41367543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201842473U Expired - Fee Related CN201348075Y (en) | 2008-12-29 | 2008-12-29 | Fireproofing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348075Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246976A (en) * | 2016-09-27 | 2016-12-21 | 重庆双江消防通风设备制造安装有限公司 | A kind of meltable bar |
| CN110594435A (en) * | 2019-09-06 | 2019-12-20 | 宁波方太厨具有限公司 | Fire-proof valve for range hood |
-
2008
- 2008-12-29 CN CNU2008201842473U patent/CN201348075Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246976A (en) * | 2016-09-27 | 2016-12-21 | 重庆双江消防通风设备制造安装有限公司 | A kind of meltable bar |
| CN106246976B (en) * | 2016-09-27 | 2018-06-19 | 重庆双江消防通风设备制造安装有限公司 | A kind of meltable bar |
| CN110594435A (en) * | 2019-09-06 | 2019-12-20 | 宁波方太厨具有限公司 | Fire-proof valve for range hood |
| CN110594435B (en) * | 2019-09-06 | 2021-07-23 | 宁波方太厨具有限公司 | Fire-proof valve for range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20171229 |