CN203248797U - Flue non-return fire damper - Google Patents
Flue non-return fire damper Download PDFInfo
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- CN203248797U CN203248797U CN 201320290382 CN201320290382U CN203248797U CN 203248797 U CN203248797 U CN 203248797U CN 201320290382 CN201320290382 CN 201320290382 CN 201320290382 U CN201320290382 U CN 201320290382U CN 203248797 U CN203248797 U CN 203248797U
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Abstract
The utility model discloses a flue non-return fire damper which comprises an oil fume channel formed by a housing, wherein an air inlet and a relative air outlet are formed in the oil fume channel; two relative valve slices can rotationally arranged in the oil fume channel through a valve slice rotating shaft; a blocking body enabling the two valve slices to open towards the direction of the air outlet is arranged in the oil fume channel; a connecting frame is arranged on air outlet side relative to the valves blocks in the oil fume channel; a high-temperature closing device capable of compulsively closing the two valve slices towards the air inlet side at setting temperature is arranged on the connecting frame. The flue non-return fire damper provided by the utility model has the advantages that the oil fume discharging effect is good, the smooth flow of a public fume channel is not blocked, the valve blocks in an open state can be compulsively closed when the fume temperature is high and in an emergency state in the public fume channel, thereby protecting the life safety of the residents.
Description
Technical field
The utility model relates to a kind of check fire valve for flue that uses in the kitchen of public gas flue that uses.
Background technique
In the kitchen of using vertical public gas flue, blow back in the kitchen in order to prevent the oil smoke in the gas flue, at the general device that all is provided with as check valve for flue between the mouth of pipe and the public gas flue of giving vent to anger of range hood.Existing check valve for flue, generally comprise the oil smoke passage that is consisted of by shell, this oil smoke passage has relative intake grill and exhaust outlet, the mouth of pipe of giving vent to anger that connects range hood on the intake grill, exhaust outlet extend in the public gas flue, the place is provided with able to turn on or off valve block at oil smoke passage exhaust outlet, and valve block is rotatably installed on the inwall of oil smoke passage by horizontally disposed valve block rotating shaft, and the valve block rotating shaft is positioned at position on the valve block center deviation.When not using kitchen ventilator, valve block covers at the air-out oral area because self gravitation is in the closed position; When using kitchen ventilator, valve block is shown in an open position, valve block is away from exhaust outlet, because the plane at valve block place was consistent with vertical public gas flue cross section when valve block was opened, the valve block of opening can hinder the unimpeded of public gas flue, especially under the situation of the public vertical public gas flue of multi-storey residential buildings, every layer of serious the unimpeded of public gas flue that hinders of valve block meeting that resident family opens is so that the deleterious of cooking-fume discharging.Simultaneously, because many public vertical public gas flues of user, in case unshared housing's breaking out of fire, a large amount of high-temperature harmful gas pours in vertical public gas flue, if this moment untimely valve block of closing in the check valve for flue, these a large amount of high-temperature harmful gas can enter in the user family that uses kitchen ventilator by the oil smoke passage of check valve for flue, thereby threaten the life safety of resident family, but existing check valve for flue does not have the means that make valve block be in the positive closing position.
Summary of the invention
The technical problems to be solved in the utility model provide a kind of cooking-fume discharging effective, can not hinder the unimpeded of public gas flue, when flue-gas temperature in the public gas flue is in the check fire valve for flue that can close by force under the very high state of emergency.
For solving the problems of the technologies described above, the utility model comprises the oil smoke passage that is made of shell, the oil smoke passage has intake grill and relative exhaust outlet, be provided with valve block in the oil smoke passage, its structural feature is that described valve block is two that are oppositely arranged, valve block is arranged in the oil smoke passage by the valve block rotating shaft is rotating, in the oil smoke passage, be provided with the baffle element that two valve blocks can only be opened to the exhaust outlet direction, exhaust outlet side with respect to valve block in the oil smoke passage is provided with link press span, is provided with on the link press span to make valve block to the high temperature shutoff device of intake grill side positive closing under setting temperature.
Described high temperature shutoff device comprises the support that is installed on the link press span, be equipped with on the support under setting temperature can resiliently deformable tinsel, be provided with elastic member in the support, the free end of elastic member is connected with the tinsel free end.
Described elastic member is for passing through rack-mount valve block compressing tablet and the torsion spring of back shaft, two free-ended ends of torsion spring lay respectively at the free-ended relative inner of two valve block compressing tablets, and two free end ends of valve block compressing tablet are provided with the insert port of inserting for the tinsel termination.
Or described elastic member is valve block compressing tablet and the torsion spring that is hinged on support the inner, and two free-ended ends of torsion spring lay respectively at the free-ended relative inner of two valve block compressing tablets, and described tinsel free end has the fore shaft of locking two valve block compressing tablets.
Or described elastic member is that described tinsel free end has the fore shaft of locking two valve block compressing tablets by the rack-mount valve block compressing tablet of being made by elastic sheet metal of back shaft.
Described high temperature shutoff device comprises the support that is installed on the link press span, support is provided with back shaft, back shaft is provided with valve block compressing tablet and torsion spring, two free-ended ends of torsion spring lay respectively at the free-ended relative inner of two valve block compressing tablets, elasticity lock banking stop with the two free ends locking of valve block compressing tablet is installed on the support, be provided with the bimetallic strip that can separate between the free end of support and elasticity lock banking stop under setting temperature, bimetallic strip is welded by the welding consumables that can melt under setting temperature by two tinsels.
Described high temperature shutoff device comprises the support that is installed on the link press span, support is provided with back shaft, back shaft is provided with the valve block compressing tablet of being made by elastic sheet metal, elasticity lock banking stop with the two free ends locking of valve block compressing tablet is installed in the support, be provided with the bimetallic strip that can separate between the free end of support and elasticity lock banking stop under setting temperature, bimetallic strip is to be welded by the welding consumables that can melt under setting temperature by two tinsels.
Described high temperature shutoff device comprises the support that is installed on the link press span, be equipped with on the support under setting temperature can resiliently deformable tinsel and lock bracket, the lock bracket two ends have to the close kink of support, a lock bracket wherein end is provided with the slotting pawl that cooperates with the tinsel termination, be provided with elastic member in the support, two free-ended ends of elastic member lay respectively at the vertical both sides of support and place respectively the inboard of this kink.
Described elastic member is a torsion spring, and this torsion spring is rack-mount by back shaft, and two free-ended ends of torsion spring lay respectively at the vertical both sides of support and place respectively the inboard of this kink.
Described high temperature shutoff device comprises the support that is installed on the link press span, support is provided with back shaft, back shaft is provided with the valve block compressing tablet of being made by elastic sheet metal, elasticity lock banking stop with the two free ends locking of valve block compressing tablet is installed in the support, between the free end of support and elasticity lock banking stop, is provided with the hot melt sheet that under setting temperature, can melt.
Described high temperature shutoff device comprises the support that is installed on the link press span, support is provided with back shaft, back shaft is provided with valve block compressing tablet and torsion spring, two free-ended ends of torsion spring lay respectively at the free-ended relative inner of two valve block compressing tablets, elasticity lock banking stop with the two free ends locking of valve block compressing tablet is installed on the support, between the free end of support and elasticity lock banking stop, is provided with the hot melt sheet that under setting temperature, can melt.
After adopting said structure, because valve block is two that are oppositely arranged, and two valve blocks vertically are arranged in the oil smoke passage by the valve block rotating shaft when using, when being in open mode, valve block takes up room little, can not hinder the unimpeded of public gas flue, therefore cooking-fume discharging is effective, is provided with baffle element near intake grill one end in the oil smoke passage, and sealability is high when valve block is in closed condition; Be provided with on the link press span and can make valve block to the high temperature shutoff device of intake grill side positive closing; when flue-gas temperature in the public gas flue is under the very high state of emergency; when flue-gas temperature reaches the warning temperature of setting in the public gas flue; this high temperature shutoff device cuts out by force to the valve block that is in open mode, thus the life safety of protection resident family.And baffle element and link press span upper end tilts to the intake grill direction, can guarantee that two valve blocks rely on himself gravity naturally to close.
Description of drawings
Embodiment of the present utility model below in conjunction with accompanying drawing is described in further detail:
Fig. 1 is first embodiment's of the utility model vertical section structure schematic diagram;
Fig. 2 is the structural representation that Fig. 1 left side is looked;
Fig. 3 is second embodiment's of the utility model vertical section structure schematic diagram;
Fig. 4 is the structural representation that Fig. 3 left side is looked;
Fig. 5 is the 3rd embodiment's of the utility model vertical section structure schematic diagram;
Fig. 6 is the structural representation that Fig. 5 left side is looked;
Fig. 7 is the 4th embodiment's of the utility model vertical section structure schematic diagram;
Fig. 8 is the structural representation that Fig. 7 left side is looked;
Fig. 9 is the 5th embodiment's of the utility model vertical section structure schematic diagram;
Figure 10 is the structural representation that Fig. 9 left side is looked;
Figure 11 is the 6th embodiment's of the utility model vertical section structure schematic diagram;
Figure 12 is the structural representation that Figure 11 left side is looked;
Figure 13 is the end-face structure schematic diagram of Fig. 7-Figure 12 middle valve plate compressing tablet.
Embodiment
Fig. 1, check fire valve for flue shown in Figure 2 comprise by what shell 1 consisted of being oil smoke passage cylindraceous that this oil smoke passage can be variable diameter passage, and the oil smoke passage has relative intake grill 2 and exhaust outlet 14(that is relative air intake passage and air-out passage
)Be provided with mounting disc 8 on shell 1 outer wall, in the oil smoke passage, be provided with baffle element 7 near intake grill 2 one ends, baffle element 7 is for being arranged on the ring bodies on the oil smoke vias inner walls, this baffle element 7 can also be arranged on the oil smoke vias inner walls boss or along the oil smoke vias inner walls salient point that arranges of interval ringwise, also can be the bending of air intake oral area.In the oil smoke passage, be provided with the link press span 3 of vertical setting near exhaust outlet 14 sides, that is in the oil smoke passage, be provided with the link press span 3 of setting with respect to the exhaust outlet side of valve block 13, link press span 3 can be the long frame along exhaust outlet side up/down perforation, also can be mounted in short of side mounting disc 8 tops, air port, for convenience of description, link press span 3 is considered as the outside towards the side of intake grill 2, then be inboard towards the side of exhaust outlet 14.In the oil smoke passage, be provided with valve block 13, valve block 13 is two that are oppositely arranged, two valve blocks 13 generally are symmetrical arranged along its vertical center line, valve block 13 has closes and opens two working positions, valve block is by valve block rotating shaft 6 rotating being arranged in the oil smoke passage, valve block rotating shaft 6 is near link press span 3, and the valve block rotating shaft is positioned at link press span 3 towards the outside, side at intake grill 2 side places, two valve blocks 13 can share a valve block rotating shaft, also can be that every valve block 3 has a valve block rotating shaft, two valve block rotating shafts are arranged side by side, two ends be provided with the shaft seat that the valve block rotating shaft is installed at oil smoke passage or baffle element about in the of 7, namely shaft seat can be fixed on the oil smoke vias inner walls, can be fixed on again on the baffle element 7, the rotating shaft that also can be a slice valve block is arranged in the oil smoke passage, and the rotating shaft of another valve block is arranged on this valve block.It is for two valve blocks can only be opened to exhaust outlet 14 directions that baffle element 7 one is set, the 2nd, for the periphery that makes valve block is convenient to be fitted on the baffle element 7 and relatively maintenance sealing, and the valve block rotating shaft can make each connected element compact structure, open and close flexibly near link press span 3.Be provided with at link press span 3 and can make the valve block 13 that is in open mode to the high temperature shutoff device of intake grill 2 side positive closings, this high temperature shutoff device comprises the support 9 that is installed on the link press span 3, support 9 is door shaped stent, being equipped with under setting temperature by screw 10 on the support 9 can resiliently deformable or molten metal sheet 12, tinsel 12 can be can resiliently deformable under setting temperature bimetallic strip, the hot melt sheet that also can under setting temperature, can melt.Be provided with elastic member in the support 9, two free-ended ends of elastic member are connected with tinsel 12 free ends respectively.In the present embodiment, this elastic member is for being installed in valve block compressing tablet 11 and the torsion spring 5 on the support 9 by back shaft 4, back shaft 4 is pressed close to link press span 3 and is be arranged in parallel with link press span 3, tinsel 12 is away from link press span 3, tinsel 12 is installed in a side (transverse arm of support 9) of support 9 and link press span 3 opposing parallel by screw 10, also can be installed on the support 9 perpendicular arms, two free-ended ends of torsion spring lay respectively at two valve block compressing tablets, 11 free-ended relative inner, valve block compressing tablet 11 is two that are oppositely arranged, the free end end of valve block compressing tablet 11 is provided with the insert port of inserting for tinsel 12 terminations, tinsel 12 is out of shape through bending, its termination is opening-like, make tinsel 12 free ends have two terminations, tinsel 12 terminations are inserted in the insert port of valve block compressing tablet 11 ends and 12 free-ended connections of tinsel, realization is to the locking of valve block compressing tablet 11, and valve block compressing tablet 11 can be sheet, tabular or shaft-like, valve block compressing tablet 11 also can be T sheet.Certainly, this elastic member can also be a spring sheet, this spring sheet intermediate portion is installed on the link press span 3 by fixed block, and two free-ended ends of this spring sheet lay respectively at two valve block compressing tablets, 11 free-ended relative inner, also are provided with leveling instrument 15 in the lower end, the outside of mounting disc 8.When flue-gas temperature in the public gas flue reaches the warning temperature of setting, resiliently deformable or fusing occur in tinsel 12, two free ends of valve block compressing tablet 11 break away from the constraint of tinsel 12, and two free ends of valve block compressing tablet 11 make two valve blocks that are in open mode close to intake grill 2 directions after elasticity under the effect of torsion spring is launched by force.During actual the use, baffle element 7 and link press span 3 upper ends tilt to intake grill 2 directions, and then two valve block 13 upper ends also tilt to intake grill 2 directions, make two valve blocks rely on himself gravity naturally to close.
Fig. 3, check fire valve for flue and aforementioned structure shown in Figure 4 are basic identical, difference is the structure of high temperature shutoff device, this high temperature shutoff device comprises the support 9 that is installed on the link press span 3, being equipped with on the support 9 under setting temperature can resiliently deformable or molten metal sheet 12 and lock bracket 18, lock bracket 18 two ends have to the close kink 19 of support 9, lock bracket 18 a wherein end is provided with the slotting pawl 16 that cooperates with tinsel 12 terminations, tinsel 12 is out of shape through bending, the slotting pawl 16 of tinsel 12 terminations and lock bracket 18 cooperatively interacts, realization is to the locking of lock bracket 18, on support 9, also be provided with the position-limited rack 17 that restriction tinsel 12 elbow sections rock, position-limited rack 17 is U-shaped, spiral-lock is on support 9, and lock bracket 18 and position-limited rack 17 are installed on the support 9 by screw 10.Be provided with elastic member in the support 9, two free-ended ends of elastic member lay respectively at support 9 vertical both sides and place respectively the inboard of this kink 19.This elastic member is a torsion spring 5, and torsion spring is installed on the support 9 by back shaft 4, and back shaft 4 is pressed close to link press span 3, and tinsel 12 is away from link press span 3, and two free-ended ends of torsion spring lay respectively at support 9 vertical both sides and place respectively the inboard of this kink 19.When flue-gas temperature in the public gas flue reaches the warning temperature of setting, resiliently deformable or fusing occur in tinsel 12, two free ends of lock bracket 19 break away from the constraint of tinsel 12 and rotate with the effect of elastic member two free end elasticity expansion power, then two free ends of the elastic member constraint of frame 19 that goes out of lock, two free end elasticity of elastic member make two valve blocks that are in open mode close to intake grill 2 directions after launching by force.
Fig. 5, check fire valve for flue shown in Figure 6 and Fig. 1, structure shown in Figure 2 is basic identical, difference is the structure of elastic member, this elastic member is valve block compressing tablet 11 and the torsion spring 5 that is hinged on support 9 the inners, be that the hinging shaft of valve block compressing tablet 11 and torsion spring 5 is near link press span 3, support 9 end surface shape roughly are U-shaped, its U-shaped bottom surface is fixed on the link press span 3, tinsel 12 is arranged on the far-end of support 9, two free-ended ends of torsion spring 3 lay respectively at two valve block compressing tablets, 11 free-ended relative inner, tinsel 12 is out of shape through bending, tinsel 12 free ends have the fore shaft of locking two valve block compressing tablets 11, the fore shaft of valve block compressing tablet 11 is U-shaped, and fore shaft also can be other structures of being convenient to realize with two valve block compressing tablets 11 locking.
Fig. 7, check fire valve for flue shown in Figure 8 and Fig. 1, structure shown in Figure 2 are basic identical, difference is the structure of high temperature shutoff device, this high temperature shutoff device comprises the support 9 that is installed on the link press span 3, support 9 is provided with back shaft 4, back shaft 4 is pressed close to link press span 3, and back shaft 4 is provided with by the compressing valve block compressing tablet 11 of elastic sheet metal.End-face structure by the compressing valve block compressing tablet 11 of elastic sheet metal is seen Figure 13, it has the axle sleeve section 20 that matches with back shaft 4, the end surface shape of axle sleeve section 20 is C type opening shape, be provided with the two elastic extension sections 21 of stretching on parallel along axle sleeve section 20, the top of elastic extension section 21 is two free end ends 22 of valve block compressing tablet 11, two free end ends of valve block compressing tablet 11 are provided with the locking mouth, two valve block compressing tablets 11 at its two free ends end end face of lock state at grade, the bent angle that two free end ends of two valve block compressing tablets 11 have relative excurvation, dotted portion is the state after two free end elasticity of valve block compressing tablet 11 are launched among the figure.Elasticity lock banking stop 23 with the locking mouth locking of two free end ends of valve block compressing tablet 11 is installed in the support 9, elasticity lock banking stop 23 terminations are opening-like, elasticity lock banking stop 23 free ends are had and aforementioned locking mouthful two corresponding terminations, between the free end of support 9 and elasticity lock banking stop 23, be provided with the hot melt sheet 24 that under setting temperature, can melt, hot melt sheet 24 is installed on the crossbearer of the support 9 parallel with link press span 3 by screw 10, elasticity lock banking stop 23 is installed in the stand with the support 9 of link press span 3 approximate vertical by screw 10, certainly, elasticity lock banking stop 23 also can be installed on the crossbearer of the support 9 parallel with link press span 3, the stand of support 9 is provided with the hole of passing for elasticity lock banking stop 23, and elasticity lock banking stop 23 passes this hole and is fixed by screws in the stand of support 9.When flue-gas temperature in the public gas flue reaches the warning temperature of setting, 24 fusings of hot melt sheet, elasticity lock banking stop 23 free ends are upspring, two free ends of valve block compressing tablet 11 break away from the constraint of elasticity lock banking stop 23, and two free end elasticity of valve block compressing tablet 11 make two valve blocks that are in open mode close to intake grill 2 directions after launching by force.
Fig. 9, check fire valve for flue shown in Figure 10 and Fig. 7, structure shown in Figure 8 are basic identical, difference is: be provided with the bimetallic strip 25 that can melt under setting temperature between the free end of support 9 and elasticity lock banking stop 23, bimetallic strip 25 is to be welded by the welding consumables that can melt under setting temperature by two tinsels, the preferred scolding tin of welding consumables.Wherein a slice in elasticity lock banking stop 23 and the bimetallic strip 25 is installed on the crossbearer of the support 9 parallel with link press span 3 by screw 10, another sheet is welded on this sheet by the welding consumables that can melt, and the free end of bimetallic strip 25 contacts with the free end of elasticity lock banking stop 23.When flue-gas temperature in the public gas flue reaches the warning temperature of setting, melts soldering tin between the bimetallic strip 25, wherein a slice comes off from another sheet, elasticity lock banking stop 23 breaks away from the constraint of bimetallic strip 25, elasticity lock banking stop 23 free ends are upspring, two free ends of valve block compressing tablet 11 break away from the constraint of elasticity lock banking stop 23, and two free end elasticity of valve block compressing tablet 11 make two valve blocks that are in open mode close to intake grill 2 directions after launching by force.
Figure 11, check fire valve for flue shown in Figure 12 and Fig. 7, structure shown in Figure 8 is basic identical, difference is the structure of high temperature shutoff device, this high temperature shutoff device comprises the support 9 that is installed on the link press span 3, support 9 is provided with back shaft 4, back shaft 4 is pressed close to link press span 3, back shaft 4 is provided with by the compressing valve block compressing tablet 11 of elastic sheet metal, two free end ends of valve block compressing tablet 11 are provided with the locking mouth, being equipped with in the support 9 under setting temperature can resiliently deformable or molten metal sheet 12, tinsel 12 free-ended terminations are provided with the plug corresponding with the locking mouth of 11 liang of free end ends of described valve block compressing tablet, or tinsel 12 free ends have the fore shaft of locking two valve block compressing tablets 11.When flue-gas temperature in the public gas flue reaches the warning temperature of setting, resiliently deformable or fusing occur in tinsel 12, two free ends of valve block compressing tablet 11 break away from the constraint of tinsel 12, and two free ends of valve block compressing tablet 11 make two valve blocks that are in open mode close to intake grill 2 directions after elasticity under the effect of torsion spring is launched by force.
Certainly, the structure of the high temperature shutoff device in above-described embodiment can be exchanged, as changing among Fig. 1, Fig. 2 the elastic member that forms by be installed in valve block compressing tablet 11 on the support 9 and torsion spring 5 by back shaft 4 into by the compressing valve block compressing tablet 11 of elastic sheet metal among Fig. 7, Fig. 8; Change the elasticity lock banking stop 23 among Fig. 9, Figure 10, bimetallic strip 25 among Fig. 1, Fig. 2 tinsel 12, or the valve block compressing tablet 11 among Fig. 1, Fig. 2 is changed among Fig. 9, Figure 10 by the compressing valve block compressing tablet 11 of elastic sheet metal; To be exchanged by the compressing valve block compressing tablet 11 of elastic sheet metal among the valve block compressing tablet 11 among Fig. 1, Fig. 2 and Figure 11, Figure 12.All these variations all should fall into protection domain of the present utility model.
Claims (11)
1. check fire valve for flue, comprise the oil smoke passage that is consisted of by shell (1), the oil smoke passage has intake grill (2) and relative exhaust outlet (14), be provided with valve block (13) in the oil smoke passage, it is characterized in that described valve block (13) is two that are oppositely arranged, valve block is arranged in the oil smoke passage by the valve block rotating shaft is rotating, in the oil smoke passage, be provided with the baffle element (7) that two valve blocks can only be opened to exhaust outlet (14) direction, exhaust outlet side with respect to valve block (13) in the oil smoke passage is provided with link press span (3), is provided with on the link press span (3) to make valve block (13) to the high temperature shutoff device of intake grill (2) side positive closing under setting temperature.
2. check fire valve for flue according to claim 1, it is characterized in that described high temperature shutoff device comprises the support (9) that is installed on the link press span (3), be equipped with on the support (9) under setting temperature can resiliently deformable tinsel (12), support is provided with elastic member in (9), and the free end of elastic member is connected with tinsel (12) free end.
3. check fire valve for flue according to claim 2, it is characterized in that described elastic member is for being installed in valve block compressing tablet (11) and the torsion spring (5) on the support (9) by back shaft (4), two free-ended ends of torsion spring lay respectively at the free-ended relative inner of two valve block compressing tablets (11), and two free end ends of valve block compressing tablet (11) are provided with the insert port of inserting for tinsel (12) termination.
4. check fire valve for flue according to claim 2, it is characterized in that described elastic member is for being hinged on support (9) inner valve block compressing tablet (11) and torsion spring (5), two free-ended ends of torsion spring lay respectively at the free-ended relative inner of two valve block compressing tablets (11), and described tinsel (12) free end has the fore shaft of locking two valve block compressing tablets (11).
5. check fire valve for flue according to claim 2, it is characterized in that described elastic member for be installed in the upper valve block compressing tablet (11) of being made by elastic sheet metal of support (9) by back shaft (4), described tinsel (12) free end has the fore shaft of locking two valve block compressing tablets (11).
6. check fire valve for flue according to claim 1, it is characterized in that described high temperature shutoff device comprises the support (9) that is installed on the link press span (3), support (9) is provided with back shaft (4), back shaft (4) is provided with valve block compressing tablet (11) and torsion spring (5), two free-ended ends of torsion spring lay respectively at the free-ended relative inner of two valve block compressing tablets (11), elasticity lock banking stop (23) with the two free ends locking of valve block compressing tablet (11) is installed on the support (9), be provided with the bimetallic strip (25) that can separate between the free end of support (9) and elasticity lock banking stop (23) under setting temperature, bimetallic strip (25) is welded by the welding consumables that can melt under setting temperature by two tinsels.
7. check fire valve for flue according to claim 1, it is characterized in that described high temperature shutoff device comprises the support (9) that is installed on the link press span (3), support (9) is provided with back shaft (4), back shaft (4) is provided with the valve block compressing tablet (11) of being made by elastic sheet metal, elasticity lock banking stop (23) with the two free ends locking of valve block compressing tablet (11) is installed in the support (9), be provided with the bimetallic strip (25) that can separate between the free end of support (9) and elasticity lock banking stop (23) under setting temperature, bimetallic strip (25) is to be welded by the welding consumables that can melt under setting temperature by two tinsels.
8. check fire valve for flue according to claim 1, it is characterized in that described high temperature shutoff device comprises the support (9) that is installed on the link press span (3), be equipped with on the support (9) under setting temperature can resiliently deformable tinsel (12) and lock bracket (18), lock bracket (18) two ends have to the close kink (19) of support (9), lock bracket (a 18) wherein end is provided with the slotting pawl (16) that cooperates with tinsel (12) termination, support is provided with elastic member in (9), and two free-ended ends of elastic member lay respectively at the vertical both sides of support (9) and place respectively the inboard of this kink (19).
9. check fire valve for flue according to claim 8, it is characterized in that described elastic member is a torsion spring (5), this torsion spring is installed on the support (9) by back shaft (4), and two free-ended ends of torsion spring lay respectively at the vertical both sides of support (9) and place respectively the inboard of this kink (19).
10. check fire valve for flue according to claim 1, it is characterized in that described high temperature shutoff device comprises the support (9) that is installed on the link press span (3), support (9) is provided with back shaft (4), back shaft (4) is provided with the valve block compressing tablet (11) of being made by elastic sheet metal, elasticity lock banking stop (23) with the two free ends locking of valve block compressing tablet (11) is installed in the support (9), between the free end of support (9) and elasticity lock banking stop (23), is provided with the hot melt sheet (24) that under setting temperature, can melt.
11. check fire valve for flue according to claim 1, it is characterized in that described high temperature shutoff device comprises the support (9) that is installed on the link press span (3), support (9) is provided with back shaft (4), back shaft (4) is provided with valve block compressing tablet (11) and torsion spring (5), two free-ended ends of torsion spring lay respectively at the free-ended relative inner of two valve block compressing tablets (11), elasticity lock banking stop (23) with the two free ends locking of valve block compressing tablet (11) is installed on the support (9), between the free end of support (9) and elasticity lock banking stop (23), is provided with the hot melt sheet (24) that under setting temperature, can melt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320290382 CN203248797U (en) | 2013-05-25 | 2013-05-25 | Flue non-return fire damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320290382 CN203248797U (en) | 2013-05-25 | 2013-05-25 | Flue non-return fire damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248797U true CN203248797U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320290382 Expired - Lifetime CN203248797U (en) | 2013-05-25 | 2013-05-25 | Flue non-return fire damper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925401A (en) * | 2014-04-22 | 2014-07-16 | 韩文强 | Flue fire damper |
| CN105841210A (en) * | 2016-06-14 | 2016-08-10 | 冯莉莉 | Manufacturing method of reed air doors for smoke exhauster |
| CN107830213A (en) * | 2017-10-13 | 2018-03-23 | 杭州老板电器股份有限公司 | A kind of fire-preventing check valve |
| CN109990120A (en) * | 2017-12-29 | 2019-07-09 | 宁波方太厨具有限公司 | A kind of double valve sheet fireproof check valve for flue |
| CN111140685A (en) * | 2020-01-06 | 2020-05-12 | 柏瑞润兴（北京）科技发展有限公司 | Smoke-discharging fire-proof valve |
-
2013
- 2013-05-25 CN CN 201320290382 patent/CN203248797U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925401A (en) * | 2014-04-22 | 2014-07-16 | 韩文强 | Flue fire damper |
| CN105841210A (en) * | 2016-06-14 | 2016-08-10 | 冯莉莉 | Manufacturing method of reed air doors for smoke exhauster |
| CN105841210B (en) * | 2016-06-14 | 2018-05-01 | 冯莉莉 | The manufacture method of the reed-type air door of smoke exhaust ventilator |
| CN107830213A (en) * | 2017-10-13 | 2018-03-23 | 杭州老板电器股份有限公司 | A kind of fire-preventing check valve |
| CN109990120A (en) * | 2017-12-29 | 2019-07-09 | 宁波方太厨具有限公司 | A kind of double valve sheet fireproof check valve for flue |
| CN109990120B (en) * | 2017-12-29 | 2024-01-16 | 宁波方太厨具有限公司 | Double-valve-plate flue fireproof check valve |
| CN111140685A (en) * | 2020-01-06 | 2020-05-12 | 柏瑞润兴（北京）科技发展有限公司 | Smoke-discharging fire-proof valve |
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