CN207246494U - A kind of monolithic valve fireproof check valve for flue - Google Patents
A kind of monolithic valve fireproof check valve for flue Download PDFInfo
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- CN207246494U CN207246494U CN201721338030.9U CN201721338030U CN207246494U CN 207246494 U CN207246494 U CN 207246494U CN 201721338030 U CN201721338030 U CN 201721338030U CN 207246494 U CN207246494 U CN 207246494U
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- valve
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- outer cover
- clamp spring
- spring
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Abstract
A kind of monolithic valve fireproof check valve for flue, including base, valve body, outer cover and valve block, are provided with fusing plate rack inside outer cover, are provided with fuse link on fusing plate rack, the button bar for closing valve block is additionally provided with inside outer cover, it is characterised in that：Two blocks of guiding side plates being oppositely arranged are installed inside outer cover, it is oriented at every piece on side plate and is provided with guide groove, button bar both ends are spacing in the guide groove of respective side respectively, elastic component is also equipped with inside outer cover, elastic component is connected to the both ends of button bar and maintains button bar and slided along guide groove and close the trend of valve block.The both ends of the button bar of the monolithic valve fireproof check valve for flue are spacing respectively to be oriented in the guide groove of side plate corresponding, button bar is also spacing on fuse link, when fuse link fuses, button bar can move and positive closing valve block under the action of elastic component along the guide groove of both sides, button bar can reliably close valve block, and then effectively separate kitchen ventilator smoke pipe and common flue, prevent that smoke pipe is on fire.
Description
Technical field
A kind of fire resisting damper is the utility model is related to, more particularly, to a kind of monolithic valve fireproof check valve for flue.
Background technology
In the kitchen using the public gas flue in longitudinal direction, the oil smoke in gas flue is blowed back into kitchen in order to prevent, is being taken 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 passage 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 with oil smoke passage air outlet able to turn on or off
Valve block, valve block is rotatably installed on the inner wall of oil smoke passage by horizontally disposed valve block shaft.When without using kitchen ventilator,
Since self gravitation 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
Put, valve block is away 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 is poured in the public gas flue in longitudinal direction, at this time if closing the valve block in check valve for flue not in time, this
A little substantial amounts of high-temperature harmful gas can be entered by the oil smoke passage of check valve for flue to be used in the user family of kitchen ventilator, from
And threaten the life security of resident family.
As disclosed in Application No. 201510675514.1 (application publication number is 105240582 A of CN)《A kind of oil smoke
Machine fire-proof valve for flue》, the positive closing bar of the fire-proof valve for flue is spacing by deformation sheet under deformation sheet undeformed state
Released on two stents, after deformation sheet temperature distortion and the spacing of positive closing bar, positive closing bar are made under the action of elastic component
For valve block of preventing fires, make the positive closing of fire prevention valve block and play the effect of isolation fire.After the positive closing bar of the fire resisting damper rotates
Compression valve block is single-point stress, and due to being related to valve block in itself there are inclination angle, may not be pressed in fire resisting damper hot operation
Tight fire resisting damper valve block, so as to cause fire resisting damper to work normally.In addition, existing monolithic valve valve block can hinder public affairs after opening
Flue gas stream direction altogether, is unsuitable for fire resisting damper and normally discharges fume.In conclusion need the fire-preventing check valve knot to existing single valve piece
Structure is further improved.
Utility model content
First technical problem to be solved in the utility model is to be directed to above-mentioned state of the art, and provides a kind of energy
Simple in structure, valve block closes reliable monolithic valve fireproof check valve for flue.
Second technical problem to be solved in the utility model is to be directed to above-mentioned state of the art, and provides a kind of valve
Piece is capable of the monolithic valve fireproof check valve for flue of lateral opening.
Technical solution is used by the utility model solves above-mentioned first technical problem：Monolithic valve flue fire prevention stops
Valve is returned, including base, valve body, outer cover and valve block, the floor installation are installed on outer cover in the outside of the outer cover, the valve body
Inside, the valve block are rotationally connected on the valve body, and fusing plate rack is provided with inside outer cover, on fusing plate rack
The fuse link that can be fused when reaching design temperature is installed, button bar is additionally provided with inside outer cover, in check-valves normal operating condition
Under, button bar is spacing on the fuse link, and under flue firing condition, button bar can depart from fuse link and close valve block, it is special
Sign is：Two blocks of guiding side plates being oppositely arranged are installed inside the outer cover, is oriented at every piece on side plate and is provided with guiding
Groove, the both ends of the button bar are spacing in the guide groove of respective side respectively, and elastic component, the bullet are also equipped with the inside of outer cover
Property part be connected to the both ends of the button bar and make button bar maintain along guide groove slide and close the trend of valve block.
Technical solution is used by the utility model solves above-mentioned second technical problem：Monolithic valve flue fire prevention stops
Return valve and valve body stent is installed on the lateral surface of the valve body, connection axis pin is installed on the valve body stent, described
Valve bracket is installed, the valve block is in the valve bracket, between the connection axis pin and valve block on connection axis pin
The return spring for making valve block maintain closing trend is installed.
Preferably, the elastic component is the locking spring of U-shaped structure, and the middle part of the locking spring is installed on the valve
On body, the both ends of locking spring are connected to the both ends of the button bar.
Further preferably, the both ends of the locking spring are respectively positioned at the corresponding outside for being oriented to side plate.
Further preferably, the both ends of the fusing plate rack are fixed on the top that respective side is oriented to side plate, the fuse link
Installed in the middle part of the fusing plate rack.
Further preferably, the outer cover includes housing body and smoke pipe connecting portion, and the floor installation is in the outer cover sheet
On body.
In order to enable valve block reliably to close, position-limit mechanism is also equipped with inside the outer cover, it is strong by button bar in valve block
In the state of system is closed, the position-limit mechanism can prevent the both ends of button bar from departing from from the guiding side plate of respective side.
As a preferred embodiment, the position-limit mechanism includes tension spring, the tension spring have two and respectively positioned at pair
The inner side of side plate should be oriented to, one end of tension spring is installed on the valve body, and the other end of tension spring is installed on the correspondence of the button bar
End, the guide groove bottom form limiting slot, in the state of valve block is by button bar positive closing, work of the button bar in tension spring
It is limited under in the limiting slot.
As another preferred solution, the position-limit mechanism is clamp spring position-limit mechanism, two sets of the clamp spring position-limit mechanism
And respectively close to the bottom of respective side guide groove, often covering clamp spring position-limit mechanism includes clamp spring outer ring, clamp spring inner ring and clamp spring shrapnel,
The clamp spring outer ring is fixed on the outer cover inner wall, and the clamp spring shrapnel and clamp spring inner ring rotate synchronously, clamp spring shrapnel with
The correspondence wall of clamp spring outer ring is equipped with the locking structure to cooperate, and the button bar can be made during positive closing valve block
Clamp spring shrapnel is driven to rotate for the clamp spring inner ring, and in the state of valve block is by button bar positive closing, the clamp spring
Shrapnel is locked on the clamp spring outer ring by the locking structure.
Locking structure can have a variety of, it is preferable that the locking structure includes taking shape in the convex of the outside wall surface of clamp spring shrapnel
Block and the limit hole on the perisporium of clamp spring outer ring is taken shape in, in the state of valve block is by button bar positive closing, the convex block is caught in institute
In the limit hole stated.
As another preferred solution, the position-limit mechanism is ratchet position-limit mechanism, and the ratchet position-limit mechanism has two
Cover and respectively close to the bottom of respective side guide groove, often covering ratchet position-limit mechanism includes pawl fixing axle, detent pin, pawl, spine
Wheel disc, ratchet dish axle and ratchet cover plate bearing, the pawl fixing axle and ratchet dish axle are each attached on the inner wall of the outer cover, institute
The one end for stating pawl is rotatably connected in the pawl fixing axle by detent pin, and the other end of pawl is engaged with the ratchet cover plate,
The ratchet cover plate is one-directionally rotated and is rotatably connected on by ratchet cover plate bearing in the ratchet dish axle, and in valve block by button bar positive closing
In the state of, the both ends of the button bar are spacing on the ratchet cover plate of respective side respectively.
Compared with prior art, the utility model has the advantage of：The monolithic valve fireproof check valve for flue is inside outer cover
Two blocks of guiding side plates being oppositely arranged are installed, the both ends of button bar are spacing respectively to be oriented in the guide groove of side plate corresponding, button bar
Also spacing on fuse link, when flue is on fire, fuse link runs into high temperature fusing, and button bar can be under the action of elastic component along two
The guide groove of side is mobile and positive closing valve block, button bar can reliably close valve block, so effectively separate kitchen ventilator smoke pipe with
Common flue, prevents that smoke pipe is on fire.
Brief description of the drawings
Fig. 1 is structure diagram of the utility model embodiment one under normal operating condition；
Fig. 2 is to remove the structure diagram after base and outer cover in Fig. 1；
Fig. 3 is that structure diagram of the utility model embodiment one under valve block positive closing state (removes base and outer
Cover)；
Fig. 4 is the structure diagram of the utility model embodiment two；
Fig. 5 is to remove the structure diagram after base and outer cover in Fig. 4；
Fig. 6 is structure diagram of the utility model embodiment three under normal operating condition；
Fig. 7 is structure diagram of the utility model embodiment three under valve block positive closing state；
Fig. 8 is structure diagram of the utility model embodiment four under normal operating condition；
Fig. 9 is structure diagram of the utility model embodiment four under valve block positive closing state；
Figure 10 is the structure diagram of the clamp spring position-limit mechanism of the utility model embodiment four；
Figure 11 is the perspective exploded view of clamp spring position-limit mechanism shown in Figure 10.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
Embodiment one：
As shown in Figure 1 to Figure 3, the monolithic valve fireproof check valve for flue of the present embodiment includes base 1, valve body 2, outer cover 3, valve
Piece 4, fusing plate rack 5, fuse link 6, button bar 7, guiding side plate 8, valve body stent 9, connection axis pin 10, valve bracket 11 etc. are main
Component.
Wherein, base 1 is installed on the outside of outer cover 3, and outer cover 3 includes housing body 31 and smoke pipe connecting portion 32, and base 1 is pacified
On housing body 31, valve body 2 is installed on inside outer cover 3, and valve block 4 is rotationally connected on valve body 2, and fusing plate rack 5 is pacified
Mounted in the inside of outer cover 3, the both ends of fusing plate rack 5 are fixed on the top of the guiding side plate 8 of respective side, and fuse link 6 is installed on
The middle part of fusing plate rack 5, fuse link 6 can fuse when reaching design temperature, and button bar 7 is arranged on the inside of outer cover 3 and for valve
Piece carries out positive closing.Valve body stent 9 is provided with connection axis pin 10, even on the lateral surface of valve body 2 on valve body stent 9
Valve bracket 11 is installed, valve block 4 is installed in valve bracket 11 on outbound axis 10.
Being oriented to side plate 8 has two pieces and is oppositely arranged in the inside of outer cover 3, is oriented to side plate 8 and is fixed on valve body 2, at every piece
It is oriented on side plate 8 and is provided with guide groove 81, the both ends of button bar 7 is spacing in the guide groove 81 of respective side respectively, the middle part of button bar 7
Spacing that elastic component is provided with inside outer cover 3 on fuse link 6, elastic component is connected to the both ends of button bar 7 and keeps button bar 7
Have along guide groove 81 and slide and close the trend of valve block.In the present embodiment, elastic component is the locking spring 13 of U-shaped structure, is locked
The both ends of tight spring 13 are installed on valve body 2 positioned at the corresponding outside for being oriented to side plate 8, the middle part of locking spring 13 respectively, lock
The both ends of tight spring 13 are connected to the both ends of button bar 7.
In addition, being provided with the magnet (not shown) for holding valve block 4 on valve body 2, it is provided with 4 edge of valve block close
Seal 16, seals so that valve block 4 is formed with valve body 2, prevents flue taint of odour.
Operation principle is as follows：
Working status 1：Under normal operating conditions, fuse link 6 cannot be deformed by high temperature, button bar 7 is limited in molten
On part 6, when range hood does not work, the magnet on valve body 2 holds valve block 4, and under the action of sealing ring 16 every
From user's smoke pipe and common flue or the external world, flue taint of odour is prevented, when range hood works, in the centrifugation wind of range hood
Under machine effect, valve block 4 will overcome magnetic force to open, and fire resisting damper is normally discharged fume.
Working status 2：When flue is on fire, fuse link 5 meets high temperature and produces fusing, can will be limited in button bar 7 therein and release
To put, button bar 7 equably will rapidly glide along the guide groove 81 of both sides under the action of locking spring 13 and compress valve block 4, from
And separate kitchen ventilator smoke pipe and common flue, prevent that smoke pipe is on fire.
Embodiment two：
As shown in Figure 4 and Figure 5, being provided between connection axis pin 10 and valve block 4 makes valve block 4 maintain returning for closing trend
Position spring 12, in the present embodiment, return spring 12 uses torsional spring.In the present embodiment, valve block 4 is lateral opening, i.e. valve block 4 is opened
Open that direction is consistent with flue gas stream direction, influence of the valve block 4 to common flue air-flow can be effectively reduced, be more conducive to kitchen ventilator row
Cigarette, when kitchen ventilator is stopped, valve block 4 can overcome corresponding frictional force under the action of return spring 12 and close fire prevention
Valve.Remaining structure of the present embodiment is identical with embodiment one, herein not reinflated description.
Embodiment three：
As shown in Figure 6 and Figure 7, limited position mechanism is installed inside outer cover 3, in valve block 4 by the state of 7 positive closing of button bar
Under, position-limit mechanism can prevent the both ends of button bar 7 from departing from from the guiding side plate 8 of respective side.In the present embodiment, position-limit mechanism includes
Using tension spring 14, tension spring 14 has two and respectively positioned at the corresponding inner side for being oriented to side plate 8, one end of tension spring 14 is installed on valve body 2
On, the other end of tension spring 14 is installed on the corresponding end of button bar 7, and 81 bottom of guide groove forms limiting slot 82, in valve block 4 by button bar
In the state of 7 positive closings, button bar 7 is limited under the action of tension spring 14 in limiting slot 82.
Operation principle is as follows：
The present embodiment adds tension spring position-limit mechanism on the basis of embodiment one.In normal operation, tension spring 14
Elastic force be less than the elastic force of locking spring 13, in the state of valve block 4 is by 7 positive closing of button bar, the elastic force of tension spring 14 is more than lock
The elastic force of tight spring 13, button bar 7 are limited in the limiting slot 82 of 81 bottom of guide groove.Remaining structure of the present embodiment is with implementing
Example one is identical, herein not reinflated description.
Example IV：
As shown in Figs. 8 to 11, the present embodiment adds clamp spring position-limit mechanism 15 on the basis of embodiment one.The clamp spring
15 liang of position-limit mechanism covers and respectively close to the bottom of respective side guide groove 81, often covering clamp spring position-limit mechanism 15 includes clamp spring outer ring
151st, clamp spring inner ring 152 and clamp spring shrapnel 153, clamp spring outer ring 151 are fixed on 3 inner wall of outer cover, in clamp spring shrapnel 153 and clamp spring
Circle 152 rotates synchronously, and the locking structure to cooperate, button are equipped with corresponding wall of the clamp spring shrapnel 153 with clamp spring outer ring 151
Bar 7 can act on clamp spring inner ring 152 during positive closing valve block 4 and drive clamp spring shrapnel 153 to rotate, and in valve block 4
In the state of 7 positive closing of button bar, clamp spring shrapnel 153 is locked on clamp spring outer ring 151 by locking structure.The present embodiment
In, locking structure includes taking shape in the convex block 154 of the outside wall surface of clamp spring shrapnel 153 and takes shape on 151 perisporium of clamp spring outer ring
Limit hole 155, in the state of valve block 4 is by 7 positive closing of button bar, convex block 154 is caught in limit hole 155.
Operation principle is as follows：
Under normal operating conditions, the course of work is identical with embodiment one, and when flue is on fire, edge is led after button bar 7 is released
During to 81 slide downward of groove, when button bar 7 is by monosymmetric clamp spring position-limit mechanism 15, drives clamp spring inner ring 152 to rotate, work as card
, can be by the clamp spring bullet card 153 on clamp spring inner ring 152 on clamp spring outer ring 151, so that will after spring inner ring 152 turns over certain angle
Button bar 7 is limited in 81 bottom of guide groove, prevents button bar 7 from departing from and cannot compress valve block 4, at this time, shape between valve block 4 and valve body 2
Into sealing.Remaining structure of the present embodiment is identical with embodiment one, herein not reinflated description.
Above description is merely a prefered embodiment of the utility model, it is noted that for those of ordinary skill in the art
For, under the premise of the principle of the utility model is not departed from, a variety of remodeling or improvement can be carried out to the utility model, these are equal
It is considered as within the scope of protection of the utility model.
Claims (9)
1. a kind of monolithic valve fireproof check valve for flue, including base (1), valve body (2), outer cover (3) and valve block (4), the base
(1) outside of the outer cover (3) is installed on, the valve body (2) is installed on outer cover (3) inside, and the valve block (4) rotationally connects
On the valve body (2), fusing plate rack (5) is installed inside outer cover (3), is provided with and reaches on fusing plate rack (5)
The fuse link (6) that can be fused during design temperature, is additionally provided with button bar (7), in check-valves normal operating condition inside outer cover (3)
Under, button bar (7) is spacing on the fuse link (6), and under flue firing condition, button bar (7) can depart from fuse link (6) and close
Valve closing piece (4), it is characterised in that：Two pieces be oppositely arranged are installed inside the outer cover (3) and are oriented to side plate (8), at every piece
It is oriented on side plate (8) and is provided with guide groove (81), the both ends of the button bar (7) the spacing guide groove (81) in respective side respectively
It is interior, elastic component is also equipped with the inside of outer cover (3), the elastic component is connected to the both ends of the button bar (7) and makes button bar (7)
Maintain and slided along guide groove (81) and close the trend of valve block.
2. monolithic valve fireproof check valve for flue according to claim 1, it is characterised in that：In the outside of the valve body (2)
Valve body stent (9) is installed on face, connection axis pin (10) is installed on the valve body stent (9), in the connection axis pin
(10) valve bracket (11) is installed, the valve block (4) is installed in the valve bracket (11), in the connection axis pin on
(10) return spring (12) for making valve block (4) maintain closing trend is installed between valve block (4).
3. monolithic valve fireproof check valve for flue according to claim 1, it is characterised in that：The elastic component is U-shaped knot
The locking spring (13) of structure, the middle part of the locking spring (13) are installed on the valve body (2), the both ends of locking spring (13)
It is connected to the both ends of the button bar (7).
4. monolithic valve fireproof check valve for flue according to claim 3, it is characterised in that：The two of the locking spring (13)
End is respectively positioned at the corresponding outside for being oriented to side plate (8).
5. monolithic valve fireproof check valve for flue according to claim 1, it is characterised in that：The fusing plate rack (5)
Both ends are fixed on the top that respective side is oriented to side plate (8), and the fuse link (6) is installed on the middle part of the fusing plate rack (5).
6. the monolithic valve fireproof check valve for flue according to any claim in claim 1 to 5, it is characterised in that：
Position-limit mechanism is also equipped with inside the outer cover (3), in the state of valve block (4) is by button bar (7) positive closing, the position restrainer
Structure can prevent the both ends of button bar (7) from departing from from the guiding side plate (8) of respective side.
7. monolithic valve fireproof check valve for flue according to claim 6, it is characterised in that：The position-limit mechanism includes
Tension spring (14), the tension spring (14) have two and respectively positioned at the corresponding inner side for being oriented to side plate (8), one end installations of tension spring (14)
On the valve body (2), the other end of tension spring (14) is installed on the corresponding end of the button bar (7), guide groove (81) bottom
End forms limiting slot (82), in the state of valve block (4) is by button bar (7) positive closing, work of the button bar (7) in tension spring (14)
It is limited under in the limiting slot (82).
8. monolithic valve fireproof check valve for flue according to claim 6, it is characterised in that：The position-limit mechanism is clamp spring
Position-limit mechanism (15), (15) two sets of the clamp spring position-limit mechanism and respectively close to the bottom of respective side guide groove (81), often set card
Spring position-limit mechanism (15) includes clamp spring outer ring (151), clamp spring inner ring (152) and clamp spring shrapnel (153), the clamp spring outer ring
(151) it is fixed on the outer cover (3) inner wall, the clamp spring shrapnel (153) rotates synchronously with clamp spring inner ring (152), in clamp spring
Shrapnel (153) is equipped with the locking structure to cooperate with the corresponding wall of clamp spring outer ring (151), and the button bar (7) is being forced
The clamp spring inner ring (152) can be acted on during closing valve block (4) and drives clamp spring shrapnel (153) to rotate, and in valve
For piece (4) by the state of button bar (7) positive closing, the clamp spring shrapnel (153) is locked at the card by the locking structure
On spring outer ring (151).
9. monolithic valve fireproof check valve for flue according to claim 8, it is characterised in that：The locking structure includes shaping
In the outside wall surface of clamp spring shrapnel (153) convex block (154) and take shape in the limit hole (155) on clamp spring outer ring (151) perisporium,
By in the state of button bar (7) positive closing, the convex block (154) is caught in the limit hole (155) valve block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338030.9U CN207246494U (en) | 2017-10-18 | 2017-10-18 | A kind of monolithic valve fireproof check valve for flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338030.9U CN207246494U (en) | 2017-10-18 | 2017-10-18 | A kind of monolithic valve fireproof check valve for flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246494U true CN207246494U (en) | 2018-04-17 |
Family
ID=61882601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721338030.9U Active CN207246494U (en) | 2017-10-18 | 2017-10-18 | A kind of monolithic valve fireproof check valve for flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207246494U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185520A (en) * | 2018-11-06 | 2019-01-11 | 陈开兵 | A kind of fireproof check valve for combined flue |
| CN109681680A (en) * | 2017-10-18 | 2019-04-26 | 宁波方太厨具有限公司 | A kind of monolithic valve fireproof check valve for flue |
| CN110553072A (en) * | 2018-06-04 | 2019-12-10 | 宁波方太厨具有限公司 | Fire-proof valve for range hood |
-
2017
- 2017-10-18 CN CN201721338030.9U patent/CN207246494U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681680A (en) * | 2017-10-18 | 2019-04-26 | 宁波方太厨具有限公司 | A kind of monolithic valve fireproof check valve for flue |
| CN109681680B (en) * | 2017-10-18 | 2024-01-16 | 宁波方太厨具有限公司 | Fireproof check valve for flue of single-chip valve |
| CN110553072A (en) * | 2018-06-04 | 2019-12-10 | 宁波方太厨具有限公司 | Fire-proof valve for range hood |
| CN110553072B (en) * | 2018-06-04 | 2024-04-02 | 宁波方太厨具有限公司 | Fireproof valve for range hood |
| CN109185520A (en) * | 2018-11-06 | 2019-01-11 | 陈开兵 | A kind of fireproof check valve for combined flue |
| CN109185520B (en) * | 2018-11-06 | 2024-05-07 | 陈开兵 | Combined type flue fireproof check valve |
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