CN209026273U - A kind of fire resisting damper for range hood - Google Patents
A kind of fire resisting damper for range hood Download PDFInfo
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- CN209026273U CN209026273U CN201821244197.3U CN201821244197U CN209026273U CN 209026273 U CN209026273 U CN 209026273U CN 201821244197 U CN201821244197 U CN 201821244197U CN 209026273 U CN209026273 U CN 209026273U
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- valve block
- valve body
- range hood
- fire resisting
- elastic component
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Abstract
The utility model relates to a kind of fire resisting dampers for range hood, it include valve body and valve block, ventilation opening is provided on the valve body, the valve block can be rotated relative to the valve body, and the ventilation opening can be sealed, and the valve block can be made to tend to revert to the first elastic component of the closed state for sealing ventilation opening, first elastic component is arranged on that side that oil smoke flow goes out on valve body, namely on the lateral surface of valve body, and it is in the periphery of the ventilation opening, additionally include the driving mechanism that valve block can be driven to approach to turn off state, the effect end of first elastic component acts on the first end of the driving mechanism, the second end of the driving mechanism is connected with the valve block.Its first elastic component is not limited by space between shaft and valve block, during ventilation opening is closed, increases the pressure to valve block so that valve block with valve body is even closer is bonded, to prevent from flowing backward.
Description
Technical field
The utility model relates to a kind of fire resisting dampers, and in particular to a kind of fire resisting damper for range hood.
Background technique
Each family kitchen discharged lampblack outlet of present building resident, is all a discharge flue being connected to up and down, in order to
It prevents the oil smoke in gas flue from blowing back into kitchen, is both provided with picture between the outlet mouth of pipe and public gas flue of smoke exhaust ventilator
Device as check valve for flue.
Existing check valve for flue generally comprises the oil smoke channel being made of shell, which has opposite air inlet
Mouthful and air outlet, the outlet mouth of pipe of smoke exhaust ventilator is connected on air inlet, air outlet is extend into public gas flue, in oil smoke channel
Valve block able to turn on or off is provided at air outlet, such as the Patent No. CN201520804070.2 (authorization of the applicant's earlier application
Notification number is CN205064971U) Chinese utility model patent " a kind of fire resisting damper of kitchen ventilator flue ", which exists
Flue-gas temperature is under the very high state of emergency and can close by force in common flue, but the range hood in user side does not use
When, that is, range hood is when working, the closing of fire resisting damper is the gravity by valve block itself, but fully rely on valve block from
It is completely enclosed that the mode of weight may be such that fire resisting damper cannot achieve the effect that, so as to will appear the case where oil smoke flows backward.
In order to solve the above-mentioned technical problem, as the Patent No. CN201721338030.9 of the applicant's earlier application (is awarded
A kind of Chinese utility model patent " monolithic valve fireproof check valve for flue " of the power notification number for CN207246494U), the monolithic valve
Fireproof check valve for flue is equipped with valve body bracket on the lateral surface of the valve body, is equipped with connecting pin on the valve body bracket
Axis, is equipped with valve bracket on the connection pin shaft, the valve block in the valve bracket, in the connection pin shaft and
The return spring for making valve block maintain closing trend is installed between valve block.In the patent although the presence of return spring increases
To the pressure of valve block, so that valve block is made to maintain the trend for closing air inlet under self gravity and return spring effect, but
It is that return spring setting may be such that the setting of return spring is size-constrained, so that return between connection pin shaft and valve block
The restoring force of spring is small, so that the pressure acted on valve block is smaller, so that valve block is in close state lower and valve in kitchen ventilator
The compactness of body is small, and then fire resisting damper may be prevented completely enclosed from achieving the effect that, meanwhile, when range hood is opened, return
Position spring has the oil smoke channel that part is located at valve body, after long-time use, return spring can be made by the pollution of tobacco tar, from
And the closing of valve block may be will affect.
Therefore, it is necessary to be improved further to the existing fire resisting damper for range hood.
Utility model content
Technical problem to be solved in the utility model is that in view of the above-mentioned state of the art, providing one kind can guarantee
When range hood is closed, valve block is fitted closely with valve body, but when being avoided that unlatching the first elastic component be contaminated be used for oil suction
The fire resisting damper of smoke machine.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of fire prevention for range hood
Valve includes valve body and valve block, ventilation opening is provided on the valve body, the valve block can be rotated relative to the valve body, and can be sealed
The ventilation opening, and the valve block can be made to tend to revert to the first elastic component of the closed state for sealing ventilation opening, feature exists
In: first elastic component is arranged on valve body on (namely on lateral surface) that side of oil smoke flow out, and is in
The periphery of the ventilation opening additionally includes the driving mechanism that valve block can be driven to approach to turn off state, first elastic component
Effect end act on the first end of the driving mechanism, the second end of the driving mechanism is connected with the valve block.
In order to facilitate the installation for realizing the first elastic component, it is preferable that bracket is provided at ventilation opening in the valve body,
First elastic component is arranged on the bracket.
There are many structure types of driving mechanism mechanism, it is preferable that the driving mechanism include driving plate, cam,
Connecting shaft and connection frame, the first face of the driving plate and the effect end of first elastic component offset, the second face with it is described convex
Wheel offsets, and the cam is threaded through in connecting shaft and moves synchronously with connecting shaft, and the both ends of the connecting shaft are rotatablely connected respectively
On two blocks of side plates of bracket, which is the shaft of the valve block, the first end of the connection frame and the connecting shaft phase
To fixation, the second end of the connection frame is connected with the valve block.In this way, the cooperation of the first elastic component and cam, increases valve block
With fitting closely for valve body, to prevent from flowing backward.
The structure type of first elastic component can there are many, can use torsional spring form, can also use other forms,
Preferably, first elastic component is spring, and first end is rack-mount, and second end is to act on end and the driving
First face of plate offsets.
Connection frame is deformed because valve block often rotates in order to prevent, and the valve block is provided with fixing seat, institute on outer side
State the second end of connection frame hingedly on the fixing seat.Thus it is possible, on the one hand, valve block has certain rotation relative to connection frame,
That is connection frame has certain rotation relative to fixed seat, to improve the service life of connection frame；On the other hand, valve block
There is certain rotation relative to connection frame, can guarantee to be in non-working condition lower disc in fire resisting damper and valve body is in same plane
Above reach better seal effect, and then prevents from flowing backward.
Preferably, the maximum angle α of the relatively fixed seat slewing area of the connection frame is 5 °.In this way, the rotation of low-angle,
It can guarantee that connection frame applies pressure to valve block under the reset response of the first elastic component while preventing connection frame from deforming, from
And guarantee fitting closely for valve block and valve body.
In order to close valve block by the ventilation opening of valve body under the effect of gravity, it is preferable that after mounting from
Under right state, the valve body, valve block be in it is vertical, the valve block shaft is located therein or top or top.
In order to realize the sealed connection of valve block valve body, sealing element is installed in the edge of the valve block, described close
Sealing is towards having the lozenges for mutually sealing cooperation with the ventilation opening of valve body on the end face of valve body.In this way, increase sealing element with
The degree of fitting closely of valve body.In order to realize the installation of sealing element and valve block, it is preferable that the periphery wall of the valve block is equipped with to extension
The insert edge stretched accordingly offers on the internal perisporium of the sealing element and plants groove therein for insert edge, and the sealing element passes through
The cooperation of groove and insert edge and be mounted on the valve block.
Compared with the prior art, the advantages of the utility model are: 1, this be used for the first bullet of the fire resisting damper of range hood
Property part be in oil smoke channel periphery and be located at valve body on oil smoke flow go out lateral surface on, not by space between shaft and valve block
Limitation increase the first elastic component to the pressure of valve block, so that valve block is at itself during closing ventilation opening
It rotates under the action of gravity and the first elastic component and then preferably closes ventilation opening, i.e., valve block is closely pasted with valve body
It closes, to prevent from flowing backward；The periphery in oil smoke channel, fume pollution when preventing range hood from working is arranged in the first elastic component simultaneously
First elastic component, and then prevent the first elastic component from failing, the service life of the first elastic component is improved, and then efficiently and reliably
It prevents from flowing backward；2, driving mechanism includes cam, by the cooperation of cam and the first elastic component, open cam will not to valve block
Generation interference is opened, is only capable of that valve block is made to tend to vertical state, even if valve block and valve body fit closely.
Detailed description of the invention
Fig. 1 is that the utility model embodiment fire resisting damper is mounted on the assembling structure cross-sectional view on range hood smoke pipe；
Fig. 2 is the structural schematic diagram of the fire resisting damper of the utility model embodiment；
Fig. 3 is the structural schematic diagram of another angle of Fig. 2；
Fig. 4 is the partial structure diagram of the utility model embodiment；
Fig. 5 is the structural schematic diagram of another angle of Fig. 4；
Fig. 6 is the driving mechanism of the utility model embodiment and the assembling structure schematic diagram of bracket；
Fig. 7 is the cross-sectional view of Fig. 6；
Fig. 8 is the structural schematic diagram that Fig. 6 removes connection frame；
Fig. 9 is the sectional view of the sealing element of the utility model embodiment；
Figure 10 is the structural schematic diagram of the valve block of the utility model embodiment；
Figure 11 is the enlarged structure schematic diagram in the portion A in Fig. 1.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown in Figure 1 to 11, the fire resisting damper for range hood of the utility model embodiment includes valve body 1, valve block
2, driving mechanism, the first elastic component 4, sealing element 5, Fuse assembly 7, bottom plate 8 and flue switching outer cover 9, wherein
Valve body 1 is provided with ventilation opening 13, and valve block 2 can be rotated relative to valve body 1, and can seal the ventilation opening 13, in the present embodiment,
After mounting under natural conditions, valve body 1 and valve block 2 be in vertical, 2 shaft of valve block be located at its own middle part top or on
Side.
As shown in Figure 6 to 8, for driving mechanism to drive valve block 2 to tend to vertical state, which includes driving
Plate 31, cam 32, connecting shaft 33 and connection frame 34, the first face of driving plate 31 and the effect end of the first elastic component 4 offset, and second
Face offsets with cam 32, and cam 32 is threaded through in connecting shaft 33 and moves synchronously with connecting shaft 33, the both ends difference of connecting shaft 33
It is rotatably connected on two blocks of side plates 111 of bracket 11, which is the shaft of valve block 2, the first end 341 of connection frame 34
Relatively fixed with the connecting shaft 33, the second end 342 of the connection frame 34 is connected with valve block 2.Specifically, on the lateral surface of valve block 2
It is provided with fixing seat 22, the second end 342 of connection frame 34 is hinged in fixing seat 22, and relatively fixed 22 turns of the seat of the connection frame 34
The maximum angle α of dynamic range is 5 °.
First elastic component 4 can make valve block 2 tend to revert to the closed state for sealing ventilation opening 13, the setting of the first elastic component 4
On that side that oil smoke flow goes out on being located at valve body 1, that side that oil smoke flow goes out on the valve body 1 is the lateral surface of valve body 1, and
Periphery in ventilation opening 13, the effect end of the first elastic component 4 act on the first end of driving mechanism, the second end of driving mechanism
It is connected with valve block 2.Specifically, the first elastic component 4 can make valve block 2 tend to revert to vertical state to tend to close ventilation opening 13
It closes, in addition, being provided with bracket 11 at ventilation opening 13 in valve body 1, the first above-mentioned elastic component 4 is arranged in the bracket 11
On.Specifically, the first elastic component 4 is spring, and the first end of spring is mounted on bracket 11, and the second end of spring is to act on
End, first face of the second end and driving plate 31 offsets.
As shown in Figure 9 and Figure 10, sealing element 5 is installed on the edge of valve block 2, wherein sealing element 5 is sealing
Circle.Specifically, the periphery wall of valve block 2 insert edge 21 with outward extension accordingly offers confession on the internal perisporium of sealing element 5
Insert edge 21 plants groove 51 therein, and sealing element 5 is mounted on valve block 2 by the cooperation of groove 51 and insert edge 21.And
Sealing element 5 is towards the lozenges 52 having on the end face of valve body 1 with the sealing cooperation of 1 ventilation opening of valve body, 13 phase, in this way, preferably real
The sealed connection of existing valve block and valve body, to prevent down cigarette from altering cigarette when closing range hood.
In order to make fire resisting damper flue-gas temperature in common flue be under the very high state of emergency and can close by force, this implementation
In example, the outside of valve body 1 is provided with Fuse assembly 7, actuator 6 is provided on the Fuse assembly 7, is connected on actuator 6
Second elastic component 61 and Fuse assembly 7 can be detached from the case where Fuse assembly 7 is in blown state, and in the work of the second elastic component 61
With lower movement to drive valve block 2 to rotate and then approach to turn off ventilation opening 13.Specifically, it is logical to be located at valve body 1 for the second elastic component 61
The periphery in air port 13, the second elastic component 61 be tension spring, actuator 6 be it is rod-shaped, the outside of valve body 1 is equipped with two pieces be oppositely arranged
Side plate 12 offers guide groove 121 corresponding with actuator 6 on every block of side plate 12, and the both ends of actuator 6 can slidably limit respectively
Position is in the guide groove 121 of corresponding side plate 12, and the both ends of tension spring are separately fixed at actuator 6 and expose to except guide groove 121
End on.
As shown in Fig. 1 and Figure 11, bottom plate 8 is embedded on the wall 14 of user's flue, and there are four spiral shells for the surrounding setting of bottom plate 8
Pit.Flue outer cover 9 of transferring is arranged outside valve body 1, and flue switching outer cover 9 includes housing body 91 and from housing body 91 1
The axially extending smoke pipe interconnecting piece 92 of the smoke pipe 15 of lateral user side, housing body 91 recline and are removedly connected in bottom plate 8
On, wherein arrow direction is the flow direction of oil smoke, in the present embodiment, housing body 91 be bottom plate 8 and smoke pipe interconnecting piece 92 it
Between rectangular transition reduce after valve block is opened to reduce the area that valve block occupies flue to the resistance of flue, Jin Eryou
The occurrence of effect reduces flue blockage.
Fixed snap-on 81 is installed on bottom plate 8, is provided on the lateral wall of housing body 91 for catching on fixed bullet
The spacing block set 911 of button 91, after the fixed limit of snap-on 81 is on spacing block set 911, housing body 91 is fixed on bottom plate 8,
Facilitate installation and maintenance of the installer to fire resisting damper.
Claims (9)
1. a kind of fire resisting damper for range hood includes valve body (1) and valve block (2), is provided with ventilation opening on the valve body (1)
(13), the valve block (2) can rotate relative to the valve body, and can seal the ventilation opening (13), and the valve block (2) can be made to become
In reverting to the first elastic component (4) for sealing the closed state of ventilation opening (13), it is characterised in that: first elastic component
(4) it is arranged on that side that oil smoke flow goes out on valve body (1), and is in the periphery of ventilation opening (13), additionally include
There is the driving mechanism that valve block (2) can be driven to approach to turn off state, the effect end of first elastic component (4) acts on the driving
The first end of mechanism, the second end of the driving mechanism are connected with the valve block (2).
2. the fire resisting damper according to claim 1 for range hood, it is characterised in that: neighbouring logical in the valve body (1)
It is provided at air port (13) bracket (11), first elastic component (4) is arranged on the bracket (11).
3. the fire resisting damper according to claim 2 for range hood, it is characterised in that: the driving mechanism includes
Driving plate (31), cam (32), connecting shaft (33) and connection frame (34), the first face of the driving plate (31) and first bullet
The effect end of property part (4) offsets, and the second face offsets with the cam (32), and the cam (32) is threaded through on connecting shaft (33) simultaneously
It is moved synchronously with connecting shaft (33), the both ends of the connecting shaft (33) are rotatably connected on two blocks of side plates of bracket (11) respectively
(111) on, which is the shaft of the valve block (2), the first end (341) and the connection of the connection frame (34)
Axis (33) is relatively fixed, and the second end (342) of the connection frame (34) is connected with the valve block (2).
4. the fire resisting damper according to claim 3 for range hood, it is characterised in that: first elastic component (4) is
Spring, first end are mounted on bracket (11), and second end is that effect end and the first face of driving plate (31) offset.
5. being used for the fire resisting damper of range hood according to the claim of any one of claim 3 or 4, it is characterised in that:
The valve block (2) is provided with fixing seat (22) on outer side, and the second end (342) of the connection frame (34) is hinged on described solid
In reservation (22).
6. the fire resisting damper according to claim 5 for range hood, it is characterised in that: the connection frame (34) is relatively solid
The maximum angle α of reservation (22) slewing area is 5 °.
7. the fire resisting damper according to claim 1 for range hood, it is characterised in that: nature after mounting
Under, the valve body (1), valve block (2) are in vertical, and described valve block (2) shaft is located therein or top or top.
8. the fire resisting damper according to claim 1 for range hood, it is characterised in that: at the edge of the valve block (2)
Position is equipped with sealing element (5), has and valve body (1) ventilation opening (13) on end face of the sealing element (5) towards valve body (1)
The mutually lozenges (52) of sealing cooperation.
9. the fire resisting damper according to claim 8 for range hood, it is characterised in that: the periphery wall of the valve block (2)
Insert edge (21) with outward extension accordingly offers on the internal perisporium of the sealing element (5) and plants wherein for insert edge (21)
Groove (51), the sealing element (5) is mounted on the valve block (2) by the cooperation of groove (51) and insert edge (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821244197.3U CN209026273U (en) | 2018-08-01 | 2018-08-01 | A kind of fire resisting damper for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821244197.3U CN209026273U (en) | 2018-08-01 | 2018-08-01 | A kind of fire resisting damper for range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209026273U true CN209026273U (en) | 2019-06-25 |
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ID=66875172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821244197.3U Active CN209026273U (en) | 2018-08-01 | 2018-08-01 | A kind of fire resisting damper for range hood |
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| Country | Link |
|---|---|
| CN (1) | CN209026273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242775A (en) * | 2019-07-23 | 2019-09-17 | 上海天纳克排气系统有限公司 | Drain tap |
-
2018
- 2018-08-01 CN CN201821244197.3U patent/CN209026273U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242775A (en) * | 2019-07-23 | 2019-09-17 | 上海天纳克排气系统有限公司 | Drain tap |
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