CN207073614U - A kind of fire resisting damper and fume-resisting system - Google Patents
A kind of fire resisting damper and fume-resisting system Download PDFInfo
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- CN207073614U CN207073614U CN201720731266.2U CN201720731266U CN207073614U CN 207073614 U CN207073614 U CN 207073614U CN 201720731266 U CN201720731266 U CN 201720731266U CN 207073614 U CN207073614 U CN 207073614U
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- Prior art keywords
- support bar
- exhaust passage
- air exhaust
- rotating shaft
- valve block
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Abstract
The utility model discloses a kind of fire resisting damper and fume-resisting system, prior art is solved after hot melt piece melts, the upset of fire prevention valve block freely falls the gas channel blocked in fire resisting damper body, sometimes due to valve body gets rusty etc., the reason valve block activity that to prevent fires is insensitive, so that the problem of fire prevention valve block is difficult to the gas channel in completely cut off fire resisting damper body by self gravitation, its drip irrigation device is：Core assembly is driven to be moved in housing to close or open air exhaust passage including the first elastic component, by the first elastic component, augmented thrust is provided by the first elastic component, core assembly is overcome certain resistance of motion, so as to blocking the gas channel in fire resisting damper body.
Description
Technical field
Fire-fighting equipment technical field is the utility model is related to, more specifically, it relates to a kind of fire resisting damper and fume-resisting system.
Background technology
Existing building is provided with sharing of exhaust road more, and each layer kitchen, toilet connect with shared exhausting duct respectively, to prevent
Foul smell recharge in sharing of exhaust road, check-valves is equipped between each kitchen, toilet and shared exhausting duct, meanwhile, in order to
When preventing that other floors from occurring fire, the pyrotechnics in sharing of exhaust road pours in down a chimney also to be required in this portion into this family room, national standard
Position sets fire resisting damper, when fire occurs for other rooms, automatic-closing valve, prevents fire from stretching.
Chinese utility model patent, Authorization Notice No. CN201155603U, the day for announcing are on November 26th, 2008, bulletin
A kind of building exhausting duct fire-proof valve, the main points of its technical scheme are：Provided with fire prevention valve body, fire prevention valve block, described fire resisting damper
Body is provided with air inlet and gas outlet, and the gas channel in valve body is provided with valve port, and the fire prevention valve block is by heating piece and fire prevention
Valve body connects, and the fire prevention valve block overturns or freely fallen the gas channel blocked in the fire resisting damper body, the fire prevention valve block
Outside is provided with contactor, and the external side of fire resisting damper at the contactor position correspondence with being provided with alarm, the fire prevention valve block
Blocked overturning or freely falling in the fire resisting damper body under gas channel state, the switch of the contactor and the alarm
Contact and start the alarm.
For above-mentioned prior art after hot melt piece melts, fire prevention valve block overturns or freely fallen the air-flow blocked in fire resisting damper body
Passage, sometimes due to valve body gets rusty etc., the reason valve block activity that to prevent fires is insensitive so that fire prevention valve block is difficult by self gravitation
With the gas channel in completely cut off fire resisting damper body.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of fire resisting damper, it is auxiliary by providing
Boosting power, core assembly is overcome certain resistance of motion, so as to block the gas channel in fire resisting damper body the advantages of.
To achieve the above object, the utility model provides following technical scheme：
A kind of fire resisting damper, including the middle housing for forming air exhaust passage, be used in housing to close or opening the row
The core assembly of wind passage, the core assembly include central rotating shaft in the air exhaust passage, be rotatably connected on side by side it is described
Some isometric support bars that outside diverging on central rotating shaft is set, in addition to some both ends are hinged in interfolded formula successively
Valve block, the one end of support bar away from central rotating shaft is hinged on hinged end of the valve block away from central rotating shaft, and the central rotating shaft is most
One support bar in outside is fixed in the housing, the freely activity of the support bar of opposite side outermost end, the support of the free activity
Bar is fixed with the first elastic component away from described central rotating shaft one end, and first elastic component is fixed on after bypassing the central rotating shaft
In housing, and support bar can be made mutually to strut to close air exhaust passage by elastic-restoring force, the support bar, which is mutually tightened up, to be made
The valve block opens air exhaust passage after mutually folding, be additionally provided with the support bar being fixed in the air exhaust passage and mutually tighten up
The hot melt latch assembly of state.
Using above-mentioned technical proposal, core assembly is arranged in housing, for closing or opening air exhaust passage, some supports
Bar is rotatably connected on central rotating shaft side by side, and support bar can rotate around central rotating shaft, and support bar equal length, some valve blocks interlock
It is collapsible be hinged, it can mutually pull open or mutually fold between valve block, the one end of support bar away from central rotating shaft is hinged on valve block
Hinged end away from central rotating shaft, support is used as by support bar and drives some valve blocks to pull open or fold, when some valve blocks pull open,
The valve block being hinged forms the sealing surface of approximate cylinder planar, is filled in the interior closing realized to air exhaust passage of air exhaust passage,
When some valve blocks fold, the valve block being hinged folds as folding fan, and air exhaust passage is opened, can divulged information；Central rotating shaft is most
One support bar in outside is fixed in housing, the freely activity of the support bar of opposite side outermost end, and because the support bar of centre leads to
The valve block connection being hinged is crossed, the support bar motion of freely activity can drive the support bar of centre to turn successively relative to center
Axle rotates, and realizes and opens, folds valve block；By being fixed with the first bullet away from central rotating shaft one end in the support bar of freedom activity
Property part, the first elastic component is fixed in housing after bypassing central rotating shaft, and first elastic component can be drawn by its elastic-restoring force
The support bar of dynamic freely activity rotates, support bar is mutually strutted to close air exhaust passage；Support bar is towards mutually tightening up
Make the direction movement that valve block mutually folds, the elastic force of the first elastic component gradually increases, i.e. the first elastic component has and makes support bar court
The elastic-restoring force of direction pulling is separated from each other, the heat that the support bar is fixed on to mutual tightening state is provided with air exhaust passage
Molten latch assembly, after reaching the highest bearing temperature of hot melt latch assembly with temperature rise, hot melt latch assembly loses locking
Ability, in the presence of the first elastic component elastic-restoring force, valve block closing air exhaust passage.
Further, the hot melt latch assembly includes the counterbore in the housing, is slidably connected in the counterbore
Sliding block, the sliding block is propped up in the counterbore and its one end is protruded the counterbore and blocks the freely activity
The hot melt block of support bar, be provided with the counterbore both ends be separately fixed in counterbore and on sliding block, after the hot melt block thawing
For the second elastic component for pulling in the sliding block in the counterbore.
Using above-mentioned technical proposal, due to the second elastic component both ends be separately fixed in counterbore and sliding block on, when temperature reaches
To after the fusing point of hot melt block, hot melt block fusing, sliding block loses the elastic recovery that the support force of hot melt block passes through the second elastic component
Power is pulled in counterbore, and movable support bar rotates in the case where the elastic-restoring force of the first elastic component pulls.
Further, the side wall of the air exhaust passage is provided with a protrusive board, the core assembly closing towards the central rotating shaft
During the air exhaust passage, the valve block of the support bar connection of freely activity is pressed on the protrusive board.
Using above-mentioned technical proposal, protrusive board is used for the scope of activities for limiting the support bar of activity, and it passes through the first elastic component
Support bar is pulled simultaneously to be fitted in moving valve plate on protrusive board by the spacing rear stopping of protrusive board, i.e. the first elastic component during pulling so that valve block
What is be bonded with protrusive board is even closer, good every cigarette effect.
Further, the valve block is iron plate, and the protrusive board is provided with magnet.
Using above-mentioned technical proposal, valve block is iron plate, and protrusive board is provided with magnet, by magnet attraction valve block, further made
Valve block be bonded with protrusive board it is even closer, it is good every cigarette effect.
Another object of the present utility model is to provide a kind of fume-resisting system, does not spread in fire resisting damper in the intensity of a fire, carries
Preceding tube wall fire resisting damper.
A kind of fume-resisting system, including a kind of above-mentioned fire resisting damper, the hot melt block outside parcel are wound with heating wire, and this is anti-
Cigarette system includes control circuit and main circuit；
The control circuit includes Smoke Sensor, the first resistor connected with the detection resistance of Smoke Sensor and electricity
Property is connected to the gating circuit between the detection resistance and first resistor；The gating circuit include comparator, triode, after
Electrical equipment, wherein, the comparator is electrically connected with voltage reference value, and voltage reference value is mutually fitted with default highest smokescope
Match somebody with somebody, after the base stage of the triode is electrically connected at comparator, colelctor electrode is electrically connected at power supply, emitter stage is connected with relay
Ground connection；
Main circuit include series connection the relay normally opened contact switch and and the fire resisting damper in heating wire.
Using above-mentioned technical proposal, Smoke Sensor detection smokescope, and signal is passed into comparator, when smog is dense
When degree is more than default highest smokescope a reference value, comparator output high level so that triode ON, and then relay obtains
Electricity, the normally opened contact switch in main circuit are closed, and heating wire is begun to warm up, and hot melt block is melted, and core assembly is by air exhaust passage
Cut-off, smog is prevented to spread；This fume-resisting system effect is sensitive, is detected in the non-large area sprawling of flame, by Smoke Sensor
Exceed setting value to smog and start fire resisting damper, effect is sensitive safe.
In summary, fire resisting damper of the present utility model overcomes core assembly certain by providing augmented thrust
The resistance of motion, so as to block the gas channel in fire resisting damper body the advantages of；Fume-resisting system effect is sensitive, climing in the non-large area of flame
It is delayed, detects that smog starts fire resisting damper by Smoke Sensor, effect is sensitive safe.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly introduced in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is a kind of structural representation of fire resisting damper air exhaust passage open mode in the utility model embodiment one；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is a kind of structural representation of fire resisting damper air exhaust passage closed mode in the utility model embodiment one；
Fig. 4 is the enlarged drawing at B in Fig. 3；
Fig. 5 is the circuit diagram of the fume-resisting system in embodiment two.
Reference：10th, housing；101st, air exhaust passage；102nd, ventilating opening；111st, central rotating shaft；112nd, support bar；113、
Valve block；114th, magnet；12nd, the first elastic component；13rd, counterbore；14th, sliding block；15th, block is heated；16th, the second elastic component；17th, protrusive board；
201st, control circuit；202nd, main circuit.
Embodiment
The technical solution of the utility model is elaborated below in conjunction with the accompanying drawings.
Embodiment one
A kind of fire resisting damper, sent, on backwind tube installed in ventilation, air-conditioning system, usually in opening；When fire once
Occur, gas in pipelines temperature is voluntarily closed when reaching 70 DEG C, 150 DEG C or 280 DEG C, and can be met within a certain period of time resistance to
Fiery integrity demands, play and acted on every cigarette back-fire relief.The melt temperature for the hot melt block 15 that specific temperature value is depended in fire resisting damper,
The hot melt block 15 of the application is using the general hot melt block 15 of the art.
Referring to Fig. 1, fire resisting damper includes the middle housing 10 for forming air exhaust passage 101, be used to close in housing 10 or
Open the core assembly of air exhaust passage 101；The upper end of housing 10 and side are provided with ventilating opening 102.
Wherein, core assembly includes central rotating shaft 111 in the air exhaust passage 101, is rotatably connected on center side by side and turns
Some isometric support bars 112 that outside diverging on axle 111 is set, in addition to some both ends are hinged in interfolded formula successively
Iron material made of valve block 113, these valve blocks 113 can mutually fold, mutually can also stretch to form lattice block face；Support bar
112 one end away from central rotating shaft 111 are hinged on hinged end of the valve block 113 away from central rotating shaft 111；The work that support bar 112 rises
With mutually folding for driving valve block 113 or mutually opening, it is readily apparent that, the one end of support bar 112 away from central rotating shaft 111 can be cut with scissors
It is connected on other correct positions of valve block 113.
The outermost support bar 112 of central rotating shaft 111 is fixed in housing 10, the support bar 112 of opposite side outermost end
Freely activity, the support bar 112 of freedom activity are fixed with the first elastic component 12 away from the one end of central rotating shaft 111, are readily apparent that,
On the valve block 113 that the support bar 112 that first elastic component 12 can also be fixed on freedom activity connects.And first elastic component 12 around
It is fixed on after crossing central rotating shaft 111 in housing 10, by elastic-restoring force support bar 112 can be made mutually to strut band moving valve plate 113
Open to close air exhaust passage 101, support bar 112, which is mutually tightened up, makes valve block 113 open air exhaust passage 101, row after mutually folding
The hot melt latch assembly that support bar 112 is fixed on to mutual tightening state is additionally provided with wind passage 101.
Referring to Fig. 2, hot melt latch assembly includes the counterbore 13 in housing 10, the sliding block being slidably connected in counterbore 13
14, sliding block 14 is propped up in the counterbore 13 and its one end is protruded counterbore 13 and block the heat of the freely support bar 112 of activity
Frit 15, is readily apparent that, sliding block 14 can also directly block valve block 113.In counterbore 13 counterbore 13 is separately fixed at provided with both ends
It is used for the second elastic component 16 for pulling in sliding block 14 in counterbore 13 on interior and sliding block 14, after hot melt block 15 melts.In the application
The first elastic component 12, the second elastic component 16 be spring.
Referring to Fig. 3 and Fig. 4, the side wall of air exhaust passage 101 is provided with a protrusive board 17, core assembly envelope towards central rotating shaft 111
When closing air exhaust passage 101, the valve block 113 that freely support bar 112 of activity connects is pressed on protrusive board 17.Protrusive board 17 is provided with magnetic
Iron 114, by the adhesive valve block 113 of magnet 114, further such that valve block 113 be bonded with protrusive board 17 it is even closer, every cigarette effect
It is good.
During work, core assembly is arranged in housing 10, for closing or opening air exhaust passage 101, some support bars 112
It is rotatably connected on side by side on central rotating shaft 111, support bar 112 can rotate around central rotating shaft 111, the equal length of support bar 112, if
The interfolded formula of dryvalve piece 113 is hinged, and can mutually be pulled open or mutually be folded between valve block 113, and support bar 112 turns away from center
One end of axle 111 is hinged on hinged end of the valve block 113 away from central rotating shaft 111, and it is some to be used as support driving by support bar 112
Valve block 113 is pulled open or folded, and when some valve blocks 113 pull open, the valve block 113 being hinged forms the closing of approximate cylinder planar
Face, the closing realized in air exhaust passage 101 to air exhaust passage 101 is filled in, when some valve blocks 113 fold, the valve that is hinged
Piece 113 folds as folding fan, and air exhaust passage 101 is opened, can divulged information；The outermost support bar 112 of central rotating shaft 111 is solid
In the housing 10, the freely activity of support bar 112 of opposite side outermost end, and because the support bar 112 of centre is by mutually cutting with scissors
The valve block 113 connect connects, and freely the support bar 112 of activity, which moves, can drive middle support bar 112 successively relative to center
Rotating shaft 111 rotates, and realizes and opens, folds valve block 113；By this freely activity support bar 112 away from central rotating shaft 111 1
End is fixed with the first elastic component 12, and the first elastic component 12 is fixed in housing 10 after bypassing central rotating shaft 111, and first elasticity
Part 12 by its elastic-restoring force can pull freely activity support bar 112 rotate, support bar 112 is mutually strutted with
Close air exhaust passage 101；Support bar 112 towards mutually tighten up valve block 113 is mutually folded direction movement, the first elastic component 12
Elastic force gradually increases, i.e. the first elastic component 12 have make support bar 112 towards be separated from each other direction pulling elastic-restoring force, air draft
The hot melt latch assembly that the support bar 112 is fixed on to mutual tightening state is provided with passage 101, as temperature rise reaches
After the highest bearing temperature for heating latch assembly, hot melt latch assembly loses lock ability, in the elastic recovery of the first elastic component 12
In the presence of power, valve block 113 closes air exhaust passage 101.
Embodiment two
A kind of fume-resisting system, including as a kind of fire resisting damper in embodiment one, the outside parcel of hot melt block 15 are wound with electric heating
Silk R, in addition to Smoke Sensor, the internal structure of Smoke Sensor are the detection resistance R2 for the change that a resistance can occur,
The principle that its resistance changes is that smokescope can influence detection resistance R2 sizes, and the resistance size and smokescope that internal resistance changes are big
It is small to have certain ratio relation.
Referring to Fig. 5, the fume-resisting system includes control circuit 201 and main circuit 202；
Control circuit 201 include Smoke Sensor, the first resistor R1 that is connected with the detection resistance R2 of Smoke Sensor with
And it is electrically connected at the gating circuit between detection resistance R2 and first resistor R1；Gating circuit include comparator B, triode,
Relay KM, wherein, comparator B is electrically connected with voltage reference value, and voltage reference value is mutually fitted with default highest smokescope
Match somebody with somebody, after the base stage of triode is electrically connected at comparator B, colelctor electrode is electrically connected at power supply, emitter stage is connected with relay KM
Ground connection；
Main circuit 202 include series connection relay KM normally opened contact switch KM-1 and and fire resisting damper in heating wire R.
Smoke Sensor detects smokescope, and signal is passed into comparator B, when smokescope is more than default highest
During smokescope a reference value, comparator B output high level so that triode Q is turned on, and then relay KM obtains electric, main circuit 202
In normally opened contact switch KM-1 close, heating wire R begun to warm up, and hot melt block 15 is melted, and core assembly is by air exhaust passage 101
Cut-off, smog is prevented to spread；This fume-resisting system effect is sensitive, is detected in the non-large area sprawling of flame, by Smoke Sensor
Exceed setting value to smog and start fire resisting damper, effect is sensitive safe.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of fire resisting damper, including the middle housing (10) for forming air exhaust passage (101), in housing (10) be used to close or
Open the core assembly of the air exhaust passage (101), it is characterised in that：The core assembly includes being located at air exhaust passage (101)
Interior central rotating shaft (111), the outside diverging being rotatably connected on side by side on the central rotating shaft (111) set some isometric
Support bar (112), in addition to the valve block (113) that some both ends are hinged in interfolded formula successively, support bar (112) is away from center
One end of rotating shaft (111) is hinged on hinged end of the valve block (113) away from central rotating shaft (111), central rotating shaft (111) outermost
A support bar (112) for side is fixed in the housing (10), the freely activity of the support bar (112) of opposite side outermost end, should be certainly
By the support bar (112) of activity the first elastic component (12), first elasticity are fixed with away from the central rotating shaft (111) one end
Part (12) is fixed in housing (10) after bypassing the central rotating shaft (111), and can make support bar (112) by elastic-restoring force
Mutually strut to close air exhaust passage (101), the support bar (112) is mutually tightened up after the valve block (113) is mutually folded
Air exhaust passage (101) is opened, is additionally provided with the support bar (112) being fixed in the air exhaust passage (101) and mutually tightens up shape
The hot melt latch assembly of state.
A kind of 2. fire resisting damper according to claim 1, it is characterised in that：The hot melt latch assembly includes being located at the shell
Counterbore (13) in body (10), the sliding block (14) being slidably connected in the counterbore (13), by institute in the counterbore (13)
Sliding block (14) is stated to prop up and its one end is protruded the counterbore (13) and block the hot melt of the freely support bar (112) of activity
Block (15), be provided with the counterbore (13) both ends be separately fixed in counterbore (13) with sliding block (14), in the hot melt block
(15) it is used for the second elastic component (16) for pulling in the sliding block (14) in the counterbore (13) after melting.
A kind of 3. fire resisting damper according to claim 2, it is characterised in that：The side wall of the air exhaust passage (101) is towards institute
State central rotating shaft (111) and be provided with a protrusive board (17), when the core assembly closes air exhaust passage (101), free activity
The valve block (113) of support bar (112) connection is pressed on the protrusive board (17).
A kind of 4. fire resisting damper according to claim 3, it is characterised in that：The valve block (113) is iron plate, the protrusive board
(17) it is provided with magnet (114).
5. a kind of fume-resisting system, including a kind of fire resisting damper as described in Claims 2 or 3 or 4, it is characterised in that：The hot melt
Parcel is wound with heating wire (R) outside block (15), and the fume-resisting system includes control circuit (201) and main circuit (202)；
The first resistor that the control circuit (201) includes Smoke Sensor, connected with the detection resistance (R2) of Smoke Sensor
And the gating circuit that is electrically connected between the detection resistance (R2) and first resistor (R1) (R1)；The gating circuit bag
Comparator (B), triode, relay (KM) are included, wherein, the comparator (B) is electrically connected with voltage reference value, voltage reference
Value is adapted with default highest smokescope, and the base stage of the triode is electrically connected at comparator (B), colelctor electrode electrically connects
It is connected to power supply, emitter stage is grounded after being connected with relay (KM)；
Main circuit (202) include series connection the relay (KM) normally opened contact switch (KM-1) and and the fire resisting damper in
Heating wire (R).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720731266.2U CN207073614U (en) | 2017-06-21 | 2017-06-21 | A kind of fire resisting damper and fume-resisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720731266.2U CN207073614U (en) | 2017-06-21 | 2017-06-21 | A kind of fire resisting damper and fume-resisting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207073614U true CN207073614U (en) | 2018-03-06 |
Family
ID=61514043
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720731266.2U Expired - Fee Related CN207073614U (en) | 2017-06-21 | 2017-06-21 | A kind of fire resisting damper and fume-resisting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207073614U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018293A (en) * | 2019-12-30 | 2020-04-17 | 华南理工大学 | Device for preparing composite biochar by co-pyrolysis of sludge and biomass and use method thereof |
| CN111039532A (en) * | 2019-12-30 | 2020-04-21 | 华南理工大学 | Timing valve applied to device for preparing composite biochar by co-pyrolysis of sludge and biomass and using method of timing valve |
-
2017
- 2017-06-21 CN CN201720731266.2U patent/CN207073614U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018293A (en) * | 2019-12-30 | 2020-04-17 | 华南理工大学 | Device for preparing composite biochar by co-pyrolysis of sludge and biomass and use method thereof |
| CN111039532A (en) * | 2019-12-30 | 2020-04-21 | 华南理工大学 | Timing valve applied to device for preparing composite biochar by co-pyrolysis of sludge and biomass and using method of timing valve |
| CN111039532B (en) * | 2019-12-30 | 2023-12-08 | 华南理工大学 | Timing valve applied to device for preparing composite biochar through co-pyrolysis of sludge and biomass and application method of timing valve |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180306 Termination date: 20190621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |