CN208519227U - Fireproof check valve for flue - Google Patents
Fireproof check valve for flue Download PDFInfo
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- CN208519227U CN208519227U CN201820039937.3U CN201820039937U CN208519227U CN 208519227 U CN208519227 U CN 208519227U CN 201820039937 U CN201820039937 U CN 201820039937U CN 208519227 U CN208519227 U CN 208519227U
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- check valve
- oil smoke
- smoke channel
- flue
- cylinder
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Abstract
The utility model discloses a kind of fireproof check valve for flue, including shell and the pod for being mounted on back side of shell, the shell is made of pedestal and protrusion with the cylinder outside pedestal, an oil smoke channel is equipped in the middle part of cylinder, the both ends in oil smoke channel are respectively air inlet and air outlet, one is equipped in oil smoke channel for closing the check valve in oil smoke channel, the check valve is rotatably connected in cylinder by a shaft, a return spring is additionally provided in shaft, it is characterized in that, an one end is additionally provided at the check valve back side to connect with shaft rotary type, the vertical position adjusting piece that the other end is connected by elastic position rebounding device with check valve, when check valve return is closed, check valve elastic position rebounding device it is flexible under, it can be realized displacement, angle between adjustment and oil smoke channel.The fireproof check valve for flue that the utility model obtains has good sealing effect, and check valve can also be made to remain closed state, the intensity of a fire is blocked to spread to common flue when fire occurs.
Description
Technical field
The utility model relates to a kind of accessories being used cooperatively with flue, and in particular to a kind of fireproof check valve for flue.
Background technique
In the kitchen using longitudinal public gas flue, the flue gas in gas flue, which is flow backwards, in order to prevent enters in kitchen,
It is general between the outlet mouth of pipe of smoke exhaust ventilator and public gas flue to be all provided with the fire-preventing check valve device for preventing flue gas from flowing backwards.It is existing
The structure of the fire-preventing check valve of some refluences generally comprises shell and the pod for being mounted on back side of shell, and the shell is by pedestal
It is formed with protrusion and the cylinder outside pedestal, an oil smoke channel is equipped in the middle part of cylinder, the both ends in oil smoke channel are respectively air inlet
And air outlet, one is equipped in oil smoke channel for closing the check valve in oil smoke channel, the check valve is turned by a shaft
It is dynamic to be connected in cylinder.Specifically, a return spring is also arranged in shaft when installing check valve, so that check valve exists
Original state can be quickly returning to after opening, (such as China State Intellectual Property Office is in public affairs on March 6th, 2013 by the sealing of oil smoke channel
It opens, a kind of fireproof check valve for flue that notification number is 202768955).But the check valve of above-mentioned check-valves is during return,
Sealing effect between the one end of check-valves far from connecting pin and oil smoke channel is bad, can have certain gap, also can sometimes
The one end for check-valves connecting pin occur is spent greatly in return hour angle, and situation about being stuck in outside oil smoke channel.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problem to be solved by the utility model is to the list of existing check-valves
To valve after return, there can be certain interval between check valve and oil smoke channel, sealing effect is not good enough.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution:
A kind of fireproof check valve for flue, including shell and the pod for being mounted on back side of shell, the shell by pedestal and
Protrusion with pedestal outside cylinder form, in the middle part of cylinder be equipped with an oil smoke channel, the both ends in oil smoke channel be respectively air inlet and
Air outlet is equipped with one for closing the check valve in oil smoke channel in oil smoke channel, and the check valve is rotated by a shaft
Be connected in cylinder, a return spring be additionally provided in shaft, which is characterized in that the check valve back side be additionally provided with an one end with
The vertical position adjusting piece that the connection of shaft rotary type, the other end are connected by elastic position rebounding device with check valve, in check valve return
When being closed, check valve elastic position rebounding device it is flexible under, can be realized displacement, adjust and the angle between oil smoke channel
Degree.When kitchen ventilator is started to work, the air-flow with oil smoke is pushed open check valve, oil smoke is arranged by air inlet and oil smoke channel
Enter common flue；When kitchen ventilator stops working, check valve is fallen at cylinder under the effect of gravity, by oil smoke channel with it is public
Flue is isolated, and the oil smoke in common flue will not flow backward.By the base for pulling check valve revolution in original return spring
On plinth, after vertical position adjusting piece and elastic position rebounding device are additionally arranged in shaft, when check valve is below the elastic force in return spring
When being closed to oil smoke channel direction, check valve outer collides with oil smoke channel, and under the pressure caused by colliding, check valve is squeezed
Compression elasticity returning device, and elastic force is generated, in turn, check valve generates an angle position tune under the action of elastic force, thus with
Flue channel fits closely, and realization is fully sealed, and so as to avoid check valve after return, there is also small gaps, or are stuck in oil
At cigarette channel, the phenomenon that cannot being fully sealed.
Further, the elastic position rebounding device is at least provided with one, each elastic position rebounding device include bolt, nut and
Spring, the spring are set on bolt, and inner end is close to the check valve back side, the vertical position adjusting piece of bolt-through and check valve
Afterwards, it is fixed on check valve by nut.The used component very simple of elastic position rebounding device places the spring in check valve and erects
To between position adjusting piece, thus, check valve can squeeze spring after being squeezed by external force, and then under the effect of the elastic force of spring, single
It will appear angle offset to valve, and then be bonded with oil smoke channel even closer.
Further, the elastic position rebounding device is located at check valve center.In this way, suffered by elastic position rebounding device
External force is more uniform, and elastic force also discharges more uniform.
Further, be additionally provided with the fixed device of a check valve, the fixed device of the check valve include fixing axle, mounting blocks and
Fuse link, the fixing axle are mounted in cylinder, and fuse link is fixed in pod, and the mounting blocks fixing end and fixing axle turn
Dynamic formula connection, free end is fixed on pod by fuse link；It is arranged with a torsional spring in fixing axle, one end of torsional spring and solid
Dead axle is fixedly connected, and the other end is connected with mounting blocks fixing end.After adding the fixed device of check valve, in normal operating condition
When, mounting blocks are melt part and fix, and will not influence the folding of check valve.When exhauster for removing kitchen fumes kindling, heat transfer is to end
The fixed device of check valve of valve is returned, fuse link expanded by heating becomes slack, and mounting blocks are detached from fuse link, and revolve under the action of torsional spring
Check valve rear is gone to, check valve is fixed to the state remained closed, so as to prevent fire spreading, avoids property
Loss and casualties.
Further, the outside bending in free end end of mounting blocks forms bending part, and one is equipped in the middle part of vertical position adjusting piece
A card slot for clamping mounting blocks bending part.In this way, mounting blocks are stuck on vertical position adjusting piece, and vertical after fire occurs
Position adjusting piece is fixed at check valve center by elastic position rebounding device, thus, mounting blocks can securely hold out against check valve.
Further, on pedestal, cylinder top be equipped with a level meter.In this way, installation personnel is just when installing check-valves
It can be installed by referring to level meter, in deflected condition after avoiding check-valves from installing.
Compared with prior art, the fireproof check valve for flue that the utility model obtains has the advantages that
1, it by installing elastic position rebounding device at the check valve back side of check-valves, and then stops working in kitchen ventilator, unidirectionally
When valve return closes oil smoke channel, check valve is under the elastic force of elastic position rebounding device, it may appear that position tune is realized in certain displacement
Whole, so that oil smoke channel is fully sealed, sealing effect is good.
2, the fixed device of the check valve added, can be when fire occurs, and mounting blocks are detached from pod, by check valve top
Tightly, it is kept closed check valve, so as to prevent fire spreading, avoids property loss and casualties.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the check valve closed state of fireproof check valve for flue in embodiment；
Fig. 2 is the structural schematic diagram of check valve open state in fireproof check valve for flue in embodiment.
In figure: shell 1, pedestal 11, cylinder 12, oil smoke channel 13, pod 2, check valve 3, shaft 4, return spring 5,
Vertical position adjusting piece 6, card slot 61, elastic position rebounding device 7, bolt 71, nut 72, spring 73, check valve fixed device 8, fixing axle
81, mounting blocks 82, fuse link 83, torsional spring 84, level meter 9.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment:
Fireproof check valve for flue provided in this embodiment, it is described including shell 1 and the pod 2 for being mounted on 1 back side of shell
Shell 1 is made of pedestal 11 and protrusion with the cylinder 12 outside pedestal 11, and an oil smoke channel 13 is equipped in the middle part of cylinder 12, and oil smoke is logical
The both ends in road 13 are respectively air inlet and air outlet, and one is equipped in oil smoke channel 13 for closing the unidirectional of oil smoke channel 13
Valve 3, the check valve 3 are rotatably connected in cylinder 12 by a shaft 4, a return spring 5 are additionally provided in shaft 4, in list
It is additionally provided with that an one end is connect with 4 rotary type of shaft, the other end is connected with check valve 3 by elastic position rebounding device 7 to 3 back side of valve
The vertical position adjusting piece 6 connect carries out in closing course in 3 return of check valve, check valve 3 elastic position rebounding device 7 it is flexible under, energy
It is enough to realize displacement, the angle between adjustment and oil smoke channel 13.
In order to improve the sealing effect after check-valves installation, 11 back side of pedestal in the present embodiment is equipped with along its edge
The non-sticky cotton of circle being arranged, on the pedestal 11, the left and right sides of cylinder 12 be all provided with that there are two location holes, at 11 back side of pedestal, a left side
Right two sides are equipped with an installation torsional spring.When installation, the utility model fireproof check valve for flue is installed on floss hole, utilizes pedestal
Check-valves, can easily be installed at floss hole by the installation torsional spring on 11.In order to reinforce connection, positioning bolt can also be used
Location hole on pedestal 11 fixes check-valves.
Specifically, above-mentioned elastic position rebounding device 7 in vertical interval setting, and is mounted on check valve 3 at least provided with two
Center, each elastic position rebounding device 7 includes bolt 71, nut 72 and spring 73, and the spring 73 is set in bolt
On 71, and inner end is close to 3 back side of check valve, and bolt 71 is fixed by nut 72 after vertical position adjusting piece 6 and check valve 3
On check valve 3.
Further, in order to prevent fire spreading when fire occurs, fire is avoided to channel to common flue by oil smoke channel
Interior, the fireproof check valve for flue in the present embodiment is additionally provided with the fixed device 8 of a check valve, and the fixed device 8 of the check valve includes
Fixing axle 81, mounting blocks 82 and fuse link 83, the fixing axle 81 are mounted in cylinder 12, and fuse link 83 is fixed on pod 2
Interior, 82 fixing end of mounting blocks is connect with 81 rotary type of fixing axle, and free end is fixed on pod 2 by fuse link 83；
A torsional spring 84 is arranged in fixing axle 81, one end of torsional spring 84 is fixedly connected with fixing axle 81, and the other end and mounting blocks 82 are solid
Fixed end is connected.
In order to enable mounting blocks 82 connect more secured, the free end of mounting blocks 82 in the present embodiment with vertical position adjusting piece 6
Outside bending forms bending part, and the card slot 61 for being used for 82 bending part of clamping mounting blocks is equipped in the middle part of vertical position adjusting piece 6.
In addition, installation personnel, which is typically necessary, installs check-valves by level meter during installation, installation
Process is more inconvenient, for the ease of installation personnel installation, on the pedestal 11,12 top of cylinder be equipped with a level meter 9.When installation,
Installation personnel can directly install check-valves by the level meter 9 on check-valves.
Finally, it should be noted that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application technology
Scheme, although applicant is described in detail the utility model referring to preferred embodiment, those skilled in the art
Should be appreciated that those, the technical solution of the present invention is modified or equivalently replaced, without departing from the technical program
Objective and range should all cover in the scope of the claims of the utility model.
Claims (6)
1. a kind of fireproof check valve for flue, including shell (1) and it is mounted on the pod (2) at shell (1) back side, the shell
(1) it is made of pedestal (11) and protrusion with the cylinder (12) of pedestal (11) outside, an oil smoke channel is equipped in the middle part of cylinder (12)
(13), the both ends of oil smoke channel (13) are respectively air inlet and air outlet, and one is equipped in oil smoke channel (13) for closing
The check valve (3) in oil smoke channel, the check valve (3) is rotatably connected in cylinder (12) by a shaft (4), in shaft (4)
On be additionally provided with a return spring (5), which is characterized in that be additionally provided with an one end and shaft (4) rotary type at check valve (3) back side
Connection, the other end pass through the vertical position adjusting piece (6) that elastic position rebounding device (7) are connected with check valve (3), return in check valve (3)
Position is when being closed, check valve (3) elastic position rebounding device (7) it is flexible under, can be realized displacement, adjustment and oil smoke channel
(13) angle between.
2. fireproof check valve for flue according to claim 1, which is characterized in that the elastic position rebounding device (7) at least sets
There is one, each elastic position rebounding device (7) includes that bolt (71), nut (72) and spring (73), the spring (73) are arranged
On bolt (71), and inner end is close to check valve (3) back side, and bolt (71) runs through vertical position adjusting piece (6) and check valve (3)
Afterwards, it is fixed on check valve (3) by nut (72).
3. fireproof check valve for flue according to claim 1 or 2, which is characterized in that the elastic position rebounding device (7) is located at
Check valve (3) center.
4. fireproof check valve for flue according to claim 1 or 2, which is characterized in that be additionally provided with the fixed device of a check valve
(8), the check valve fixed device (8) includes fixing axle (81), mounting blocks (82) and fuse link (83), the fixing axle (81)
It is mounted in cylinder (12), fuse link (83) is fixed in pod (2), mounting blocks (82) fixing end and fixing axle (81)
Rotary type connection, free end are fixed on pod (2) by fuse link (83)；A torsional spring is arranged on fixing axle (81)
(84), one end of torsional spring (84) is fixedly connected with fixing axle (81), and the other end is connected with mounting blocks (82) fixing end.
5. fireproof check valve for flue according to claim 4, which is characterized in that the free end of mounting blocks (82) is to being folded outward
It is curved, bending part is formed, the card slot (61) for being used for clamping mounting blocks (82) bending part is equipped in the middle part of vertical position adjusting piece (6).
6. fireproof check valve for flue according to claim 1 or 2, which is characterized in that on pedestal (11), cylinder (12) top
End is equipped with a level meter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820039937.3U CN208519227U (en) | 2018-01-10 | 2018-01-10 | Fireproof check valve for flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820039937.3U CN208519227U (en) | 2018-01-10 | 2018-01-10 | Fireproof check valve for flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208519227U true CN208519227U (en) | 2019-02-19 |
Family
ID=65328418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820039937.3U Active CN208519227U (en) | 2018-01-10 | 2018-01-10 | Fireproof check valve for flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208519227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454598A (en) * | 2019-08-21 | 2019-11-15 | 李永彬 | High closed, flow-guiding type oil-smoke-exhausting fireproof check valve |
| CN111627184A (en) * | 2020-06-20 | 2020-09-04 | 福建南亿智能科技有限公司 | Alarm linkage system |
-
2018
- 2018-01-10 CN CN201820039937.3U patent/CN208519227U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454598A (en) * | 2019-08-21 | 2019-11-15 | 李永彬 | High closed, flow-guiding type oil-smoke-exhausting fireproof check valve |
| CN111627184A (en) * | 2020-06-20 | 2020-09-04 | 福建南亿智能科技有限公司 | Alarm linkage system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |