CN201486107U - Fireproof check valve of exhaust duct of storied building - Google Patents
Fireproof check valve of exhaust duct of storied building Download PDFInfo
- Publication number
- CN201486107U CN201486107U CN2009201509136U CN200920150913U CN201486107U CN 201486107 U CN201486107 U CN 201486107U CN 2009201509136 U CN2009201509136 U CN 2009201509136U CN 200920150913 U CN200920150913 U CN 200920150913U CN 201486107 U CN201486107 U CN 201486107U
- Authority
- CN
- China
- Prior art keywords
- fire prevention
- locking device
- prevention valve
- fire
- valve body
- 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
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a fireproof check valve of an exhaust duct of a storied building, which comprises a fireproof valve body, a fireproof valve seat and a check valve plate, wherein the fireproof valve body is fixed in the fireproof valve seat, the check valve plate is movably connected in the fireproof valve body and is communicated or sealed with a passage of an exhaust duct connected to the back of the fireproof valve seat in a turning or falling off way, a temperature sensitive piece is arranged on the fireproof valve seat above the back part of the check valve plate, a locking device is movably connected to the middle part of the back side of the fireproof valve seat by deformed elastic devices at both ends of the locking device, the temperature sensitive piece supports the locking device and is molten or deformed when encountering heat, the elastic devices are recovered to an original shape, the locking device is supported and buckled on the check valve plate after the locking device convolutes, and the check valve plate falls off to seal the fireproof valve body. The fireproof check valve of the exhaust duct of the storied building has simple structure and enables the locking device to fall off quickly, the locking device is tightly pressed on the check valve plate, the fireproof valve body is firmly sealed, a passage between the shared exhaust duct of the storied building and the inside of a room is safely sealed, and the condition that smoke and fire diffuse and flow back into the room is prevented.
Description
Technical field
The utility model relates to the building air exhausting device, particularly relates to the building exhast duct fire-preventing check valve of the exhaust duct of housing construction kitchen and washroom.
Background technology
Existing building is provided with shared exhast duct, each layer kitchen, washroom are connected with shared exhast duct respectively, in order to prevent that the foul smell in the shared exhast duct from recharging, be equipped with flap valve between each kitchen, washroom and the shared air channel, simultaneously, when preventing other floor breaking out of fires, pyrotechnics in the shared exhast duct pours in down a chimney into this chamber, family, and national standard also requires at this position fire resisting damper to be set, when the breaking out of fire of other rooms, automatic-closing valve prevents fire spread.The structure more complicated that existing building exhast duct fire-preventing check valve has, the closing motion that has is insensitive.Fire-preventing check valve generally all is to be made of non-return valve block and fire prevention valve body and fire prevention valve seat, and when other floor breaking out of fires, the flap valve sheet falls and seal the fire prevention valve body, makes pyrotechnics can not spread and pour in down a chimney into indoor.A kind of fire-preventing check valve of structure wherein, for using a fixedly end of gravity rod of hot melt sheet at the rear of non-return valve block, the other end of gravity rod is movably connected on the fire prevention valve seat, after hot melt sheet chance hot melt is disconnected, gravity rod falls under the effect of self gravitation, and then the fire-preventing check valve sheet depressed sealing fire prevention valve body.Prevent that pyrotechnics from spreading and pour in down a chimney effect into this family though such fire-preventing check valve can play,, fall slow and flameproof effect is not good especially because the general weight of gravity rod is low weight.
Summary of the invention
The utility model is finished in order to solve deficiency of the prior art, the purpose of this utility model provide a kind of can be simple in structure, can make that locking device falls rapidly, and locking device is pressed on the non-return valve block tightly, seal the fire prevention valve body securely, and then the path of the shared exhast duct of secure closed building and indoor kitchen and washroom, prevent that pyrotechnics from spreading and pour in down a chimney the building exhast duct fire-preventing check valve of registering one's residence.
Building exhast duct fire-preventing check valve of the present utility model, comprise the fire prevention valve body, fire prevention valve seat and non-return valve block, described fire prevention valve body is fixed in the described fire prevention valve seat, described non-return valve block is movably connected in the described fire prevention valve body, described non-return valve block overturns or falls the path that is communicated with or seals the exhast duct of described fire prevention valve seat rear connection, fire prevention valve seat in top, described non-return valve block rear portion is provided with heat-sensitive sheet, one locking device is movably connected on described fire prevention valve seat rear side middle part by the elastic device of its two ends distortion, described heat-sensitive sheet supports described locking device, described heat-sensitive sheet is met the disconnected or distortion of hot melt, described elastic device restores to the original state, deduct after described locking device circles round on described non-return valve block, described flap valve slabbing is the described fire prevention valve body of sealing down.
Building exhast duct fire-preventing check valve of the present utility model can also be:
Described elastic device is a torsion spring, and described locking device around the axle of described torsion spring clockwise or be rotated counterclockwise.
Described locking device is the polished rod that straight middle part, both sides is bent upwards the platform that forms projection.
Two ends, described fire prevention valve seat rear side middle part are provided with radially-protruding brace, and described brace is provided with the hole, and described polished rod both ends are plugged in the described hole, and an end of described torsion spring is fixed on the brace, and the other end of described torsion spring is fixed on described polished rod end.
Described heat-sensitive sheet is hot melt sheet or thermal deformation sheet, and it is disconnected that described heat-sensitive sheet is met hot melt, and it is softening that described thermal deformation sheet is met thermal deformation, and described thermal deformation sheet cooling restores to the original state.
Described heat-sensitive sheet one end is fixed on the described fire prevention valve seat, and the described heat-sensitive sheet other end supports described locking device.
The other end of described heat-sensitive sheet is fixed on the described locking device or described locking device is set up on the described heat-sensitive sheet middle part.
Described fire prevention valve body rear is provided with flow-guiding channel.
The outer rim of described fire prevention valve seat is provided with plug side, and described plug side is pegged graft and is fixed in described installing port outside.
Described non-return valve block is a disk, described fire prevention valve body is circular, the internal diameter of described fire prevention valve body is less than the diameter of described non-return valve block, the first half level of described non-return valve block is provided with rotating shaft, described rotating shaft is rotatable to be connected on the described fire prevention valve body, the rotating shaft of described non-return valve block is positioned at the place ahead of described fire prevention valve body with top, and the following part of described non-return valve block rotating shaft is positioned at the rear of described fire prevention valve body.
Building exhast duct fire-preventing check valve of the present utility model, in terms of existing technologies, because its top, non-return valve block rear portion fire prevention valve seat is provided with heat-sensitive sheet, one locking device is movably connected on fire prevention valve seat rear side middle part by the elastic device of its two ends distortion, heat-sensitive sheet supports locking device, heat-sensitive sheet is met the disconnected or distortion of hot melt, elastic device restores to the original state, after circling round, locking device deducts on the non-return valve block, the path of the shared exhast duct of sealing building and indoor kitchen and washroom under the flap valve slabbing, thereby meet when hot when it, elastic device is unclamped in heat-sensitive sheet fusing or distortion, and elastic device restores to the original state under the effect of restoring force, locking device is tightly deducted on the non-return valve block, the non-return valve block tightly deducts on the fire prevention valve body, and then path between secure closed exhast duct and the fire prevention valve body, avoids flue gas or propagation of flame, prevent that simultaneously pyrotechnics from pouring in down a chimney into indoor, the better effects if of fire prevention non-return.
Description of drawings
Fig. 1 the utility model building exhast duct fire-preventing check valve embodiment front view.
Fig. 2 the utility model building exhast duct fire-preventing check valve embodiment rear elevation.
A-A sectional view among Fig. 3 the utility model building exhast duct fire-preventing check valve Fig. 1.
B portion enlarged drawing among Fig. 4 the utility model building exhast duct fire-preventing check valve Fig. 3.
The figure number explanation
1 ... fire prevention valve seat 2 ... fire prevention valve body 3 ... non-return valve block 4 ... locking device
5 ... heat-sensitive sheet 6 ... flow-guiding channel 7 ... torsion spring 8 ... plug side
9 ... rotating shaft 10 ... brace 11 ... polished rod
The specific embodiment
Be described in further detail below in conjunction with accompanying drawing Fig. 1 to Fig. 4 building exhast duct of the present utility model fire-preventing check valve.
Building exhast duct fire-preventing check valve of the present utility model please refer to Fig. 1 to Fig. 4, valve seat 1 and non-return valve block 3, and this is a structure member general in the fire-preventing check valve.Fire prevention valve body 2 is fixed in the fire prevention valve seat 1, non-return valve block 3 is movably connected in the fire prevention valve body 2, non-return valve block 3 upset or fall is communicated with or seals the path of the shared exhast duct of building that indoor kitchen and washroom be connected with fire prevention valve seat 1 rear, when not having fire at ordinary times, in the time of need be by indoor outside air draft, the wind jack-up non-return valve block 3 of discharging, the shared exhast duct of building that makes fire prevention valve seat 1 rear connect can be communicated with the indoor air draft of carrying out; When fire occurring, non-return valve block 3 falls, valve body 2 sealings of will preventing fires.The heat-sensitive sheet 5 that fire prevention valve seat 1 in top, non-return valve block 3 rear portions is provided with, one locking device 4 is movably connected on fire prevention valve seat 1 rear side middle part by the elastic device of its two ends distortion, heat-sensitive sheet 5 supports locking device 4, heat-sensitive sheet 5 is met the disconnected or distortion of hot melt, elastic device restores to the original state, deduct after locking device 4 circles round on non-return valve block 3, non-return valve block 3 falls the path between the sealing shared exhast duct of building and indoor washroom and the kitchen.When fire-preventing check valve is met when hot, heat-sensitive sheet 5 fusing or distortion, unclamp elastic device, elastic device restores to the original state under the effect of restoring force, locking device 4 is tightly deducted on non-return valve block 3, and non-return valve block 3 tightly deducts on fire prevention valve body 2, and then sealing fire prevention valve body 2, avoid flue gas or propagation of flame, prevent that simultaneously pyrotechnics from pouring in down a chimney into indoor.The better effects if of fire prevention non-return.And, prevent to pour in down a chimney because the effect of elastic device can be sealed fire prevention valve body 2 convenient, fast, safely.
Building exhast duct fire-preventing check valve of the present utility model please refer to Fig. 1 to Fig. 4, and described elastic device is a torsion spring 7, and described locking device 4 around the axle of described torsion spring 7 clockwise or be rotated counterclockwise.Torsion spring 7 is in rotation under the effect of restoring force and then drive locking device 4 and fall counterclockwise or after turning clockwise, and props up non-return valve block 3 and promptly makes it fall to be pressed on the fire prevention valve body 2 sealing fire prevention valve body 2.When installing, clockwise or rotate counterclockwise locking device 4, promptly lift locking device 4, make to make heat-sensitive sheet 5 support locking device 4 by torsion spring 7 torsional deformations that locking device 4 and torsion spring 7 act in the time of can waiting for next fire.Further, the structure of locking device 4 is: locking device 4 is bent upwards the polished rod 11 of the platform that forms projection for straight middle part, both sides.Two torsion springs 7 are installed in straight position, both sides, two ends, fire prevention valve seat 1 rear side middle part are provided with radially-protruding brace 10, and brace 10 is provided with the hole, and polished rod 11 both ends are plugged in the hole, one end of torsion spring 7 is fixed on the brace 10, and the other end of torsion spring 7 is fixed on the place, end of polished rod 11.Two straight positions of polished rod 11 are installed 7, two torsion springs 7 of a torsion spring separately and are acted on simultaneously, and distortion simultaneously restores to the original state simultaneously, makes the bossing of polished rod 11 be against on the non-return valve block 3, and the valve body 2 of will prevent fires seals, and prevent that flue gas from spreading and pour in down a chimney and register one's residence.
Building exhast duct fire-preventing check valve of the present utility model, please refer to Fig. 1 to Fig. 4, further heat-sensitive sheet 5 is the sheet metal relatively more responsive to temperature specifically, heat-sensitive sheet 5 can be the hot melt sheet, it also can be the thermal deformation sheet, it is disconnected that the hot melt sheet is met hot melt, and it is softening that the thermal deformation sheet is met thermal deformation, and the cooling of thermal deformation sheet can restore to the original state.When in use the temperature that runs into when the hot melt sheet reaches 150 ℃ (error ± 2 ℃) or 70 ℃ (error ± 2 ℃), the fusing of hot melt sheet, locking device 4 quickens to fall under the effect of torsion spring 7, be against on the non-return valve block 3, sealing fire prevention valve body 2, path between the indoor kitchen in sealing fire prevention valve body 2 the place aheads and the shared exhast duct of building at washroom and fire prevention valve body 2 rear portions prevents that pyrotechnics from spreading and pour in down a chimney.The hot melt sheet that more renews then prevents to pour in down a chimney when next fire from taking place.And the thermal deformation sheet is when the temperature that runs into reaches 150 ℃ (error ± 2 ℃) or 70 ℃ (error ± 2 ℃), the distortion of thermal deformation sheet is softening, unclamped locking device 4, locking device 4 quickens to fall under the effect of torsion spring 7, be against on the non-return valve block 3, sealing fire prevention valve body 2 prevents that pyrotechnics from spreading and pour in down a chimney.Use the advantage of distortion sheet to be that it can resile automatically after cooling, can or support, make non-return valve block 3 to overturn, make that fire prevention valve body 1 can be to the shared exhast duct air draft of building locking device 4 pull-up again.The thermal deformation sheet that does not need more to renew can prevent to produce when next fire from taking place and pour in down a chimney.
Building exhast duct fire-preventing check valve of the present utility model please refer to Fig. 1 to Fig. 4, and heat-sensitive sheet 5 one ends are fixed on the fire prevention valve seat 1, and heat-sensitive sheet 5 other ends support locking device 4.Further, the other end of heat-sensitive sheet 5 is fixed on the locking device 4 or locking device 4 is set up on heat-sensitive sheet 5 middle parts.Certainly can also be other fixed form, so long as can realize locking device 4 being set up and getting final product at fire prevention valve seat 1 by heat-sensitive sheet 5.Further, fire prevention valve body 2 rears are provided with flow-guiding channel 6, and the effect of flow-guiding channel 6 is to carry out water conservancy diversion to flue gas and foul smell.Flow-guiding channel 6 is preferably arc, and the flow-guiding channel 6 water conservancy diversion effects of arc are relatively good, indoor flue gas and foul smell can be entered in the shared exhast duct of building fast, concentrates to be discharged into roof.
Building exhast duct fire-preventing check valve of the present utility model please refer to Fig. 1 to Fig. 3, and the outer rim of fire prevention valve seat 1 is provided with width plug side 8, and plug side 8 is pegged graft and is fixed in the installing port outside, so just can not use screw to fix, and mounts and dismounts more convenient.Non-return valve block 3 is a disk, and fire prevention valve body 2 is circular, and the internal diameter of fire prevention valve body 2 is less than the diameter of non-return valve block 3, and like this, non-return valve block 3 could be with fire prevention valve body 2 complete closed.The first half level of non-return valve block 3 is provided with rotating shaft 9, and rotating shaft 9 is rotatable to be connected on the fire prevention valve body 2, and 3 rotating shafts 9 of non-return valve block are positioned at the place ahead of fire prevention valve body 2 with top, and the part of non-return valve block 3 rotating shafts 9 below is positioned at the rear of the valve body 2 of preventing fires.Be specially on fire prevention valve body 2 and be provided with the hole at rotating shaft 9 both ends, in the described rotating shaft 9 two ends patchholes, rotating shaft 9 ends can rotate in the hole.
Above-mentionedly only several specific embodiments in the utility model are illustrated; but can not be as protection domain of the present utility model; every equivalence variation of having done according to the design spirit in the utility model or modification or equal proportion are amplified or are dwindled etc., all should think to fall into protection domain of the present utility model.
Claims (10)
1. building exhast duct fire-preventing check valve, comprise the fire prevention valve body, the fire prevention valve seat is with turning or fall and be communicated with or the non-return valve block of the path of the exhast duct that sealing fire prevention valve seat rear is connected, described fire prevention valve body is fixed in the described fire prevention valve seat, described non-return valve block is movably connected in the described fire prevention valve body, it is characterized in that: fire prevention valve seat in top, described non-return valve block rear portion is provided with meets the heat-sensitive sheet that hot melt is disconnected or be out of shape, one elastic device of locking device by its two ends distortion that can deduct after circling round on described non-return valve block is movably connected on described fire prevention valve seat rear side middle part, and described heat-sensitive sheet supports described locking device.
2. building exhast duct fire-preventing check valve according to claim 1 is characterized in that: described elastic device is a torsion spring, and described locking device around the axle of described torsion spring clockwise or be rotated counterclockwise.
3. building exhast duct fire-preventing check valve according to claim 2 is characterized in that: described locking device is the polished rod that straight middle part, both sides is bent upwards the platform that forms projection.
4. building exhast duct fire-preventing check valve according to claim 3, it is characterized in that: two ends, described fire prevention valve seat rear side middle part are provided with radially-protruding brace, described brace is provided with the hole, described polished rod both ends are plugged in the described hole, one end of described torsion spring is fixed on the brace, and the other end of described torsion spring is fixed on described polished rod end.
5. according to claim 1 or 2 or 3 or 4 described building exhast duct fire-preventing check valves, it is characterized in that: described heat-sensitive sheet is for meeting hot fusible and cooling off revertible hot melt sheet or thermal deformation sheet.
6. building exhast duct fire-preventing check valve according to claim 5 is characterized in that: described heat-sensitive sheet one end is fixed on the described fire prevention valve seat, and the described heat-sensitive sheet other end supports described locking device.
7. building exhast duct fire-preventing check valve according to claim 6 is characterized in that: the other end of described heat-sensitive sheet is fixed on the described locking device or described locking device is set up on the described heat-sensitive sheet middle part.
8. according to claim 1 or 2 or 3 or 4 described building exhast duct fire-preventing check valves, it is characterized in that: described fire prevention valve body rear is provided with flow-guiding channel.
9. according to claim 1 or 2 or 3 or 4 described building exhast duct fire-preventing check valves, it is characterized in that: the outer rim of described fire prevention valve seat is provided with plug side, and described plug side is pegged graft and is fixed in described installing port outside.
10. according to claim 1 or 2 or 3 or 4 described building exhast duct fire-preventing check valves, it is characterized in that: described non-return valve block is a disk, described fire prevention valve body is circular, the internal diameter of described fire prevention valve body is less than the diameter of described non-return valve block, the first half level of described non-return valve block is provided with rotating shaft, described rotating shaft is rotatable to be connected on the described fire prevention valve body, the rotating shaft of described non-return valve block is positioned at the place ahead of described fire prevention valve body with top, and the following part of described non-return valve block rotating shaft is positioned at the rear of described fire prevention valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201509136U CN201486107U (en) | 2009-04-27 | 2009-04-27 | Fireproof check valve of exhaust duct of storied building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201509136U CN201486107U (en) | 2009-04-27 | 2009-04-27 | Fireproof check valve of exhaust duct of storied building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486107U true CN201486107U (en) | 2010-05-26 |
Family
ID=42424992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201509136U Expired - Fee Related CN201486107U (en) | 2009-04-27 | 2009-04-27 | Fireproof check valve of exhaust duct of storied building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486107U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243894A (en) * | 2012-02-08 | 2013-08-14 | 张琦 | Fireproof non-returning exhaust valve |
| CN105926901A (en) * | 2016-06-23 | 2016-09-07 | 张琦 | Residence fireproof exhaust valve |
| CN110107055A (en) * | 2019-02-18 | 2019-08-09 | 徐仁春 | A kind of house flue gas emission |
-
2009
- 2009-04-27 CN CN2009201509136U patent/CN201486107U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243894A (en) * | 2012-02-08 | 2013-08-14 | 张琦 | Fireproof non-returning exhaust valve |
| CN103243894B (en) * | 2012-02-08 | 2015-05-20 | 张琦 | Fireproof non-returning exhaust valve |
| CN105926901A (en) * | 2016-06-23 | 2016-09-07 | 张琦 | Residence fireproof exhaust valve |
| CN110107055A (en) * | 2019-02-18 | 2019-08-09 | 徐仁春 | A kind of house flue gas emission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201486107U (en) | Fireproof check valve of exhaust duct of storied building | |
| CN201521685U (en) | Fireproof check valve with guiding device | |
| CN216479097U (en) | Fireproof check valve | |
| CN107489794A (en) | A kind of oil-smoke-exhausting fireproof check valve | |
| CN201382187Y (en) | Fireproof check valve for exhaust duct of building | |
| CN203248797U (en) | Flue non-return fire damper | |
| CN101608702B (en) | Check fire valve for flue | |
| CN210687151U (en) | Oil smoke discharging fireproof check valve with front and back double control | |
| CN205479533U (en) | Grease proofing cigarette flows backward check valve | |
| CN107101012B (en) | Fireproof plug valve for gas pipeline | |
| CN209309418U (en) | Use safe oil-smoke-exhausting fireproof check valve | |
| CN207246494U (en) | A kind of monolithic valve fireproof check valve for flue | |
| CN201487315U (en) | Fireproof check valve with ejector | |
| CN106178341A (en) | A kind of Simple fire retarding device of check valve | |
| CN207268320U (en) | A kind of oil-smoke-exhausting fireproof check valve | |
| CN207621442U (en) | A kind of single valve piece fireproof check valve for flue | |
| CN202719235U (en) | Flue check valve | |
| CN203023573U (en) | Fireproof flue check valve | |
| CN114791048A (en) | Check valve | |
| CN206053243U (en) | A kind of fire prevention reverse-filling exhausting duct | |
| CN209876073U (en) | Fireproof check valve for oil smoke exhaust | |
| CN217422290U (en) | Check valve | |
| CN202284667U (en) | Check fire resisting damper for flue | |
| CN108518489B (en) | A kind of fire-fighting smoke exhaust fire damper being easily installed | |
| CN214466391U (en) | Fireproof check valve for oil smoke exhaust |
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 |
Granted publication date: 20100526 Termination date: 20170427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |