CN207621442U - A kind of single valve piece fireproof check valve for flue - Google Patents
A kind of single valve piece fireproof check valve for flue Download PDFInfo
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- CN207621442U CN207621442U CN201721837704.XU CN201721837704U CN207621442U CN 207621442 U CN207621442 U CN 207621442U CN 201721837704 U CN201721837704 U CN 201721837704U CN 207621442 U CN207621442 U CN 207621442U
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- buckle
- valve
- flue
- valve block
- temperature control
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Abstract
A kind of single valve piece fireproof check valve for flue, including pedestal, valve body, outer cover, valve block, it is internally provided with fixed cross beam, elastic component, temperature control chip, the first buckle and the second buckle in outer cover, first buckle and the second buckle are set to the homonymy of valve block and are rotatably arranged on fixed cross beam, under check-valves normal operating condition, first buckle and the second buckle are limited by temperature control chip and are detached from the valve block, under flue firing condition, the first buckle and the second buckle are detached from the temperature control chip and push down valve block jointly under the action of the elastic member and close check-valves.The single valve piece fireproof check valve for flue is under check-valves normal operating condition, first buckle and the second buckle are limited by temperature control chip and are detached from valve block, under flue firing condition, first buckle and the second buckle are detached from temperature control chip and push down valve block jointly under the action of the elastic member and close check-valves, not only structure novel, and valve block can be quickly and reliably closed, separate kitchen ventilator smoke pipe and common flue, prevents smoke pipe on fire.
Description
Technical field
The utility model is related to a kind of fire resisting dampers, more particularly, to a kind of single valve piece fireproof check valve for flue.
Background technology
In the kitchen using longitudinal public gas flue, the oil smoke in gas flue blows back into kitchen in order to prevent, is taking out
The device as check valve for flue is both provided between the outlet mouth of pipe of kitchen ventilator and public gas flue.Existing flue is non-return
Valve generally comprises the oil smoke channel being made of shell, which has opposite air inlet and air outlet, connects on air inlet
The outlet mouth of pipe of smoke exhaust ventilator is connect, air outlet is extend into public gas flue, is provided at the air outlet of oil smoke channel able to turn on or off
Valve block, valve block is rotatably installed in by horizontally disposed valve block shaft on the inner wall in oil smoke channel.When without using kitchen ventilator,
Since its own gravity is in the closed position, valve block is covered in outlet air oral area valve block；When using kitchen ventilator, valve block is in open position
It sets, valve block is far from air outlet.Due to the public public gas flue in a longitudinal direction of more users, once fire occurs for single household, greatly
The high-temperature harmful gas of amount pours in longitudinal public gas flue, at this time if closing the valve block in check valve for flue not in time, this
A little a large amount of high-temperature harmful gas can be entered by the oil smoke channel of check valve for flue to be used in the user family of kitchen ventilator, from
And threaten the life security of resident family.
The fireproof check valve for flue of various single valve pieces is disclosed in the prior art, and such as application No. is 201510675514.1
Disclosed in (application publication number is 105240582 A of CN)《A kind of kitchen ventilator fire-proof valve for flue》, the fire-proof valve for flue it is strong
Pole shutoff processed is limited on the secondary support bracket under deformation sheet undeformed state by deformation sheet, is released to strong after deformation sheet temperature distortion
The limit of pole shutoff processed, positive closing bar act on fire prevention valve block under the action of the elastic member, make the positive closing of fire prevention valve block and
Play the effect of isolation fire.The fire resisting damper only has a positive closing bar, is single-point when compressing valve block after the rotation of positive closing bar
Stress cannot reliably compress fire resisting damper valve block in fire resisting damper hot operation, may not be able to normal work so as to cause fire resisting damper
Make.
Utility model content
Technical problem to be solved in the utility model be for the above-mentioned prior art present situation and provide a kind of structure novel,
The single valve piece fireproof check valve for flue of valve block can reliably be closed.
Technical solution is used by the utility model solves above-mentioned technical problem：The single valve piece fireproof check valve for flue packet
Pedestal, valve body, outer cover, valve block are included, the outer cover is mounted on the base, and the valve body is mounted on inside outer cover, the valve block peace
It can rotate on valve body and relative to valve body, it is characterised in that：It is internally provided with fixed cross beam, elastic component, temperature in the outer cover
Control wafer, the first buckle and the second buckle, first buckle and the second buckle are set to the homonymy of the valve block and are rotatably arranged on
On the fixed cross beam, under check-valves normal operating condition, first buckle and the second buckle are limited by the temperature control chip
And it is detached from the valve block, under flue firing condition, first buckle and the second buckle are detached from the temperature control chip and described
Valve block is pushed down under the action of elastic component jointly and closes check-valves.
Preferably, there is the first fixed support plate and the second fixed support plate being oppositely arranged, institute inside the outer cover
The both ends for stating fixed cross beam are separately fixed on the first fixed support plate and the second fixed support plate, in the fixed cross beam
Portion is equipped with temperature control plate rack, and the temperature control chip is mounted on temperature control plate rack, the root of first buckle and the second buckle
It is rotatably connected on the both ends of the fixed cross beam respectively, the middle part limit of the first buckle and the second buckle is in the temperature control chip
On.
Elastic component can have a variety of structures, it is preferable that and the elastic component includes the first torsional spring and the second torsional spring, and described the
One torsional spring is mounted between the root and fixed cross beam of the first buckle, and second torsional spring is mounted on the root of the second buckle and admittedly
Determine between crossbeam.
When not working for range hood valve block can normal switching-off, be equipped on the valve body for valve block is sucked
Magnet.
Further preferably, the sealing ring mutually sealed with the valve block is installed on the valve body.In the effect of sealing ring
Under can prevent flue taint of odour with user-isolated smoke pipe and common flue or the external world.
Temperature control chip can have a variety of structures, it is preferable that the temperature control chip uses bimetallic temperature control chip.
In order to enable valve block to open up, it is rotatably connected at the top of the valve block on the valve body.In this way, valve block closes
The gravity that valve block itself can also be utilized when closing, is closed more reliable.
First buckle and the second buckle in the released state can be with a variety of position limiting structures, as a preferred embodiment, in institute
It states and positive stop spring plate is installed on the side of valve block, under flue firing condition, first buckle and the second buckle compress valve block
And the both ends with the positive stop spring plate offset respectively.
In order to carry out more reliable limit to the first buckle and the second buckle, further preferably, the positive stop spring plate is horizontal
It is set to valve block center position on the lower side, the both ends of positive stop spring plate are each formed with oblique outwardly extending elastic contact blade, are risen in flue
Under fiery state, the elastic contact blade at positive stop spring plate both ends respectively support on the first buckle and the second buckle described in being located at by elasticity.
As another preferred embodiment of the first buckle and the second buckle position limiting structure, in the left and right sides of the fixed cross beam
Portion is separately installed with postive stop baffle, and under flue firing condition, first buckle and the second buckle compress valve block and root portion
It does not offset with the postive stop baffle of respective side.
Compared with prior art, the utility model has the advantage of：First buckle of the single valve piece fireproof check valve for flue
It is set to the homonymy of valve block with the second buckle and is rotatably arranged on fixed cross beam, under check-valves normal operating condition, the first button
Plate and the second buckle are limited by temperature control chip and are detached from valve block, and under flue firing condition, the first buckle and the second buckle are detached from temperature
Control wafer simultaneously pushes down valve block jointly under the action of the elastic member and closes check-valves, not only structure novel, but also can be quickly and reliably
Valve block is closed, separates kitchen ventilator smoke pipe and common flue, prevents smoke pipe on fire.
Description of the drawings
Fig. 1 is structural schematic diagram of the utility model embodiment one under Normal Shutdown state；
Fig. 2 is partial structural diagram of the utility model embodiment one under Normal Shutdown state；
Fig. 3 is partial structural diagram of the utility model embodiment one under Normal on state；
Fig. 4 is to remove the structural schematic diagram after fixed cross beam in Fig. 3；
Fig. 5 is partial structural diagram of the utility model embodiment one under Abnormal Shutdown state；
Fig. 6 is structural schematic diagram of the utility model embodiment two under Abnormal Shutdown state.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
Embodiment one：
As shown in Figures 1 to 5, the single valve piece fireproof check valve for flue in the present embodiment includes pedestal 1, valve body 2, outer cover 3
With valve block 4, outer cover 3 is mounted on pedestal 1, and valve body 2 is mounted on inside outer cover 3, and valve block 4 is mounted on valve body 2 and can opposite valve
Body 2 rotates.In order to enable valve block 4 to open up, the top of valve block 4 is rotatably connected on valve body 2, in addition, pacifying on valve body 2
Equipped with the sealing ring 14 sealed with 4 phase of valve block, the magnet 13 for valve block 4 is sucked is installed on valve body 2.
It is internally provided with fixed cross beam 5, temperature control chip 6, the first buckle 71, the second buckle 72, first in outer cover 3 and fixes support
Plate 81, the second fixed support plate 82, the first torsional spring 91, the second torsional spring 92 and temperature control plate rack 10.Wherein, the first fixed support plate
81 and 82 fixed valve body 2 of the second fixed support plate on, the both ends of fixed cross beam 5 are separately fixed at the first fixed support plate 81 and
On two fixed support plates 82, temperature control plate rack 10 is mounted on the middle part of fixed cross beam 5, and temperature control chip 6 is mounted on temperature plate rack 10
On, in the present embodiment, temperature control chip 6 uses bi-metal temperature piece.First buckle 71 and the second buckle 72 are set to the homonymy of valve block 4,
The root of first buckle 71 and the second buckle 72 is rotatably connected on the both ends of fixed cross beam 5 respectively, and the first torsional spring 91 is mounted on the
Between the root and fixed cross beam 5 of one buckle 71, the first torsional spring 91 make the first buckle 71 have rotate down and compress valve block 4
Trend, the second torsional spring 92 are mounted between the root and fixed cross beam 5 of the second buckle 72, and the second torsional spring 92 makes the second buckle 72 have
Have the tendency that rotating down and compressing valve block 4.
In order to after rotating down the first buckle 71 and the second buckle 72 limit, in the present embodiment, in valve block 4
Positive stop spring plate 11 is installed, which is horizontally placed on 4 center of valve block position on the lower side, positive stop spring plate 11 on side
Both ends are each formed with oblique outwardly extending elastic contact blade 111, and elastic contact blade 111 is used for and 72 phase of the first buckle 71 and the second buckle
It supports.
The course of work of the check-valves is as follows：
Under check-valves normal operating condition, the first buckle 71 and the second buckle 72 are limited by temperature control chip 6 and are detached from valve block
4, valve block 4 is inhaled by magnet 13 on valve body 2, and is sealed by 14 phase of sealing ring between valve block 4 and valve body 2；In flue shape on fire
Under state, the first buckle 71 and the second buckle 72 are detached from temperature control chip 6 and respectively under the action of the first torsional springs 91 and the second torsional spring 92
Valve block 4 is pushed down, and elastic support is located at the first buckle 71 and the second buckle 72 to the elastic contact blade 111 at 11 both ends of positive stop spring plate respectively
On, so that check-valves is reliably closed.
Embodiment two：
As shown in fig. 6, in the present embodiment, it is separately installed with postive stop baffle 12 in the left and right sides of fixed cross beam 5, in flue
Under firing condition, the first buckle 71 and the second buckle 72 compression valve block 4 and root offset with the postive stop baffle of respective side 12 respectively.
Remaining structure is identical as embodiment one, herein not reinflated description.
Claims (9)
1. a kind of single valve piece fireproof check valve for flue, including pedestal (1), valve body (2), outer cover (3), valve block (4), the outer cover
(3) it is mounted on pedestal (1), the valve body (2) is mounted on outer cover (3) inside, and the valve block (4) is mounted on valve body (2) simultaneously
It can be rotated relative to valve body, it is characterised in that：It is internally provided with fixed cross beam (5), elastic component, temperature control chip in the outer cover (3)
(6), the first buckle (71) and the second buckle (72), first buckle (71) and the second buckle (72) are set to the valve block (4)
Homonymy and be rotatably arranged on the fixed cross beam (5), under check-valves normal operating condition, first buckle (71) and
Second buckle (72) is limited by the temperature control chip (6) and is detached from the valve block (4), under flue firing condition, first button
Plate (71) and the second buckle (72) be detached from the temperature control chip (6) and push down valve block (4) jointly under the action of the elastic component and
Close check-valves.
2. single valve piece fireproof check valve for flue according to claim 1, it is characterised in that：Have inside the outer cover (3)
There are the first fixed support plate (81) being oppositely arranged and the second fixed support plate (82), the both ends difference of the fixed cross beam (5)
It is fixed on the first fixed support plate (81) and the second fixed support plate (82), is equipped in the middle part of the fixed cross beam (5)
Temperature control plate rack (10), the temperature control chip (6) are mounted on temperature control plate rack (10), first buckle (71) and the second buckle
(72) root is rotatably connected on the both ends of the fixed cross beam (5) respectively, in the first buckle (71) and the second buckle (72)
Portion limits in the temperature control chip (6).
3. single valve piece fireproof check valve for flue according to claim 2, it is characterised in that：The elastic component includes first
Torsional spring (91) and the second torsional spring (92), first torsional spring (91) are mounted on root and the fixed cross beam (5) of the first buckle (71)
Between, second torsional spring (92) is mounted between the root and fixed cross beam (5) of the second buckle (72).
4. single valve piece fireproof check valve for flue according to claim 1, it is characterised in that：It is installed on the valve body (2)
Have for the magnet of valve block (4) (13) is sucked.
5. single valve piece fireproof check valve for flue according to claim 1, it is characterised in that：It is installed on the valve body (2)
There is the sealing ring (14) mutually sealed with the valve block (4).
6. single valve piece fireproof check valve for flue according to claim 1, it is characterised in that：The temperature control chip (6) uses
Bimetallic temperature control chip.
7. the single valve piece fireproof check valve for flue according to any claim in claim 1 to 6, it is characterised in that：
Positive stop spring plate (11) is installed on the side of the valve block (4), under flue firing condition, first buckle (71) and second
Buckle (72) compresses valve block and the both ends with the positive stop spring plate (11) offset respectively.
8. single valve piece fireproof check valve for flue according to claim 7, it is characterised in that：Described positive stop spring plate (11) water
Flat to be set to valve block (4) center position on the lower side, the both ends of positive stop spring plate (11) are each formed with oblique outwardly extending elastic contact blade
(111), under flue firing condition, elasticity supports and is located at described the respectively for the elastic contact blade (111) at positive stop spring plate (11) both ends
On one buckle (71) and the second buckle (72).
9. the single valve piece fireproof check valve for flue according to any claim in claim 1 to 6, it is characterised in that：
The left and right sides of the fixed cross beam (5) is separately installed with postive stop baffle (12), under flue firing condition, first buckle
(71) and the second buckle (72) compresses valve block and root offsets with the postive stop baffle of respective side (12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721837704.XU CN207621442U (en) | 2017-12-25 | 2017-12-25 | A kind of single valve piece fireproof check valve for flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721837704.XU CN207621442U (en) | 2017-12-25 | 2017-12-25 | A kind of single valve piece fireproof check valve for flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207621442U true CN207621442U (en) | 2018-07-17 |
Family
ID=62830121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721837704.XU Active CN207621442U (en) | 2017-12-25 | 2017-12-25 | A kind of single valve piece fireproof check valve for flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207621442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027271A (en) * | 2018-10-31 | 2018-12-18 | 北京金盾华通科技有限公司 | A kind of fire-preventing check valve and its application method with valve block retaining mechanism |
-
2017
- 2017-12-25 CN CN201721837704.XU patent/CN207621442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027271A (en) * | 2018-10-31 | 2018-12-18 | 北京金盾华通科技有限公司 | A kind of fire-preventing check valve and its application method with valve block retaining mechanism |
| CN109027271B (en) * | 2018-10-31 | 2023-07-28 | 北京金盾华通科技有限公司 | Fireproof check valve with valve plate locking mechanism and use method thereof |
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