CN208331346U - A kind of fire-preventing check valve - Google Patents
A kind of fire-preventing check valve Download PDFInfo
- Publication number
- CN208331346U CN208331346U CN201820997764.6U CN201820997764U CN208331346U CN 208331346 U CN208331346 U CN 208331346U CN 201820997764 U CN201820997764 U CN 201820997764U CN 208331346 U CN208331346 U CN 208331346U
- Authority
- CN
- China
- Prior art keywords
- fire
- bracket
- plectrum
- check valve
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 5
- 230000003685 thermal hair damage Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 239000000779 smoke Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Air-Flow Control Members (AREA)
Abstract
The utility model relates to a kind of fire-preventing check valves, it includes: valve body；Valve block, the valve block connect with the valve body phase pivot and match with the air outlet；Locking mechanism, the locking mechanism include be mounted on the ventilation duct circumferential surface and extend to multiple limited blocks beyond the air outlet, be slidably mounted in the valve block surface and with locking plate that the limited block matches, one end be mounted on the ventilation duct circumferential surface bracket, with the temperature-sensing element of bracket phase pivot connection and plectrum corresponding with the locking plate, the elastic component and the connection bracket and the plectrum that are arranged between the bracket and the plectrum.It can be realized the leakproofness fixed to the limit of valve block and guarantee it with valve body in this way, avoid flue fire behavior to indoor sprawling.
Description
Technical field
The utility model belongs to the field of building materials, and in particular to a kind of fire-preventing check valve.
Background technique
Fire-preventing check valve be monoblock type metal component, preferably use metal material, be provided simultaneously with fire prevention, prevent flue gas reverse irrigation and
The upward wind-guiding function of outlet air.Fire-preventing check valve is commonly used in being mounted on the air inlet of kitchen inner flue, connect with smoke exhaust ventilator,
The foul atmospheres such as indoor oil smoke are concentrated discharge roofing, prevent the flue gas in flue from flowing backward；And when generation fire in building, fire
To when indoor sprawling, check (non-return) valve needs are automatically closed to prevent fire behavior from spreading in time the hows and whys flue.Existing fire-preventing check valve by
In lacking locking structure, in this way when fire occurs in building, fire-preventing check valve, which is difficult to realize effectively seal, to be caused to be difficult to prevent fire
Feelings sprawling.
Summary of the invention
The utility model aim is to provide a kind of fire-preventing check valve for overcome the deficiencies in the prior art.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of fire-preventing check valve, it includes:
Valve body, the valve body include ventilation duct and the support plate for being formed in the ventilation duct circumferential surface, the ventilation duct tool
There are air inlet and air outlet；
Valve block, the valve block connect with the valve body phase pivot and match with the air outlet；
It further include:
Locking mechanism, the locking mechanism include being mounted on the ventilation duct circumferential surface and extending to beyond the air outlet
Multiple limited blocks, be slidably mounted in the valve block surface and matched with the limited block locking plate, one end installation
Exist in the bracket of the ventilation duct circumferential surface, with bracket phase pivot connection and plectrum corresponding with the locking plate, setting
The temperature-sensing element of elastic component and the connection bracket and the plectrum between the bracket and the plectrum；
The locking mechanism, which has, unlocks and locks two states, and when its is in the unlocked state, the elastic component is pressed
Contracting, the locking plate are separated with the limited block；When it is in the lock state, the temperature-sensing element is described by thermal damage
Elastic component drives the relatively described holder pivots of plectrum to make the locking plate synchronous slide, the locking plate and the limited block
Mutually it is clamped.
Optimally, multiple waist-shaped holes are offered on the locking plate, the locking plate with the waist-shaped hole by matching
Multiple groups bolt pair be slidably mounted on the valve block.
Optimally, connecting plate is installed, the connecting plate is by being arranged in the first pivot therein on the surface of the valve block
Axis is connect with the bracket phase pivot, is arranged with the torsional spring for resisting the connecting plate and the bracket on first pivot.
Further, the end of the connecting plate is formed with the limited block perpendicular with it, in the locking plate with institute
It states one end that plectrum matches and forms the convex block for running through the limited block.
Further, the surface of the connecting plate is formed with corresponding with the convex block and leads with what the plectrum matched
To skewback.
Further, the bracket includes being mounted on the first connecting portion of the ventilation duct circumferential surface and connecting with described first
The second connecting portion of socket part free end integrally connected and formed obtuse angle, the connecting plate are located at the first connecting portion and institute
It states between second connecting portion.
Optimally, the locking gap matched with the locking plate is offered on the limited block.
Optimally, the other end of the bracket is connect by being arranged in the second pivot therein with the plectrum phase pivot,
The elastic component is sheathed on second pivot.
Optimally, it further includes being mounted on the support plate surface and wind scooper corresponding with the air outlet and peace
The fixed torsion ear of at least one set mounted in the wind scooper side.
Optimally, end face locating for air outlet described in the ventilation duct is formed fluted, the edge shape of the valve block
The sealing that groove described in Cheng Youyu matches.
Since above-mentioned technical proposal is used, the utility model has the advantage that the utility model compared with prior art
Fire-preventing check valve can be realized the limit to valve block by installing the locking mechanism of specific structure on valve body and valve block in this way
It fixes and guarantees its leakproofness with valve body, avoid flue fire behavior to indoor sprawling.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model fire-preventing check valve；
Fig. 2 is the partial enlarged view of the utility model fire-preventing check valve；
Fig. 3 is state diagram of the utility model fire-preventing check valve when valve block is opened；
Fig. 4 is the fixed enlarged drawing for turning round ear of the utility model fire-preventing check valve.
Specific embodiment
The utility model preferred embodiment is described in detail below in conjunction with attached drawing:
Fire-preventing check valve as shown in Figure 1 to Figure 3 mainly includes valve body 1, valve block 3 and locking mechanism 4 etc..
Wherein, valve body 1 uses existing conventional, generally includes ventilation duct 12 and is formed in 12 circumferential surface of ventilation duct
Support plate 11(support plate 11 is usually to be integrally formed on the circumferential surface of ventilation duct 12, so that support plate 11 is perpendicular to ventilation duct
12)；Ventilation duct 12 can be the shape of the routine such as square tube, round tube, can be uniform straight tube, or the different abnormal shape of internal diameter
It manages (preferably uniform round tube)；When ventilation duct 12 is round tube, its internal diameter；In view of the difficulty or ease of manufacture craft, can prop up
11 center of fagging opens up through-hole, and runner pipe (runner pipe is corresponding with through-hole) is respectively welded in the two sides of support plate 11, makes
The runner pipe for obtaining two sides is connected, and two runner pipes are ventilation duct 12 on the whole at this time.Ventilation duct 12 has air inlet 121
With air outlet 122.Valve block 3 is connect with 1 phase pivot of valve body, it is matched with air outlet 122, so as to turn to corresponding closing lid
At air outlet 122, it can be flat and arc.
Locking mechanism 4 then includes limited block 41, locking plate 42, bracket 44, plectrum 45, elastic component 46 and temperature-sensing element 47
Deng.Limited block 41 has multiple (interval settings), and the top that they are mounted on 12 circumferential surface of ventilation duct is (related at air outlet 122
Direction is defined according to direction shown in Fig. 1) and extend to beyond air outlet 122；Locking plate 42 is slidably mounted
(outer surface deviates from the surface of support plate 11) and matches with limited block 41 on the surface of valve block 3；In the present embodiment,
Limited block 41 is two, they are symmetrical about the axial line of ventilation duct 12, offer the locking matched with locking plate 42 thereon
Gap 411；Locking plate 42 is in Y type at this time.One end of bracket 44 is mounted on the lower part of 12 circumferential surface of ventilation duct；Plectrum 45 and bracket 44
Phase pivot connection, it is corresponding with locking plate 42, and in this way when plectrum 45 is rotated relative to bracket 44, its outer end is (i.e. certainly
By holding) it can be in contact with plectrum 45 and then its opposite valve block 3 is driven to move；The setting of elastic component 46 bracket 44 and plectrum 45 it
Between, temperature-sensing element 47 is for connecting and blocking bracket 44 and plectrum 45, so that elastic component 46 is compressed in bracket 44 and plectrum 45
Between.Locking mechanism 4, which has, in this way unlocks and locks two states, and when its is in the unlocked state, elastic component 46 is compressed, lock
Stator 42 is separated with limited block 41；When it is in the lock state, temperature-sensing element 47 can not be blocked 44 He of bracket by thermal damage
Plectrum 45, elastic component 46 restore to the original state under the action of elastic force and plectrum 45 are driven to keep locking plate 42 same relative to the rotation of bracket 44
Upward sliding is walked, so that locking plate 42 is clamped with 41 phase of limited block.
In the present embodiment, it is upper downward that the direction of multiple waist-shaped hole 421(waist-shaped holes 421 is offered on locking plate 42
Stretch), one group of bolt pair 43 through valve block 3 is installed, to realize the company of locking plate 42 and valve block 3 in each waist-shaped hole 421
It connects, bolt pair 43 does not lock locking plate 42 in valve block 3 at this time, can be realized locking plate 42 under the effect of external force in this way in valve
3 surface of piece is opposite to be slided.Connecting plate 31 is installed on the surface (surface of installation locking plate 42) of valve block 3, connecting plate 31 passes through
The first pivot 33 therein is arranged in connect with 44 phase pivot of bracket and (realize the pivot connection of valve block 3 Yu bracket 44), the
The torsional spring 34 for resisting connecting plate 31 and bracket 44 is arranged on one pivot 33, this torsional spring 34 is used for the reset of valve block 3.Connecting plate 31
End (i.e. upper end) be formed with the limited block 32 perpendicular with it, the one end matched in locking plate 42 with plectrum 45 is formed
Through the convex block 422 of limited block 32；The surface (i.e. outer surface) of connecting plate 31 is formed with and and plectrum corresponding with convex block 422
The 45 guiding skewbacks 35 matched；Be respectively used to improve cooperate between locking plate 42 and plectrum 45 reliability (plectrum 45 from
Spur 451 is formed with by end, for cooperating with convex block 422, to reduce friction and further increase the reliability stirred).And it props up
Frame 44 includes being mounted on the first connecting portion 441 of 12 circumferential surface lower part of ventilation duct and integrally connecting with 441 free end of first connecting portion
It connects and the second connecting portion 442 at formed obtuse angle, the first pivot 33 is threaded through first connecting portion 441 and second connecting portion 442
Junction so that connecting plate 31 is between first connecting portion 441 and second connecting portion 442.The other end (i.e. of bracket 44
The free end of two interconnecting pieces 442) it is connect by being arranged in the second pivot 48 therein with 45 phase pivot of plectrum, elastic component 46(is logical
It is often torsional spring) it is set on the second pivot 48, to realize the pivot connection between plectrum 45 and bracket 44.Temperature-sensing element 47
One end is fixed in second connecting portion 442 and the other end then runs through plectrum 45 and supports on its outer surface, so that plectrum 45 and branch
It is close to each other and elastic component 46 is compressed between frame 44；The fire-preventing check valve of this spline structure is also effectively simplified structure and drops
Low cost of manufacture.
In the present embodiment, fire-preventing check valve further includes being mounted on 11 surface of support plate and corresponding with air outlet 122
Wind scooper 2 and the fixed torsion ear 5(of at least one set for being mounted on 2 side of wind scooper are as shown in figure 4, be similar to the structure of torsional spring).
In the present embodiment, wind scooper 2 includes that two pieces of side plate 21(, the two blocks of side plates 21 being fixed on 11 surface of support plate are located at air outlet
122 two sides) and connection two pieces of 21 outer ends of side plate end plate 22, between side plate 21 and end plate 22 by multiple rivets 23 connect
It connects；When in use, the lower end area of section of wind scooper 2 is less than the upper end area of section；When can choose there are when wind scooper 2
Bracket 44 is mounted on end plate 22, but since the material of wind scooper 2 is relatively thin and rigidity is inadequate, influences the reliable of the work of plectrum 45
Property.In the present embodiment, end face locating for air outlet 122 forms fluted 23 in ventilation duct 12, and the edge of valve block 3 is formed with
The sealing 301 matched with groove 23, to improve the leakproofness between ventilation duct 12 and valve block 3；It can be in sealing 301
Edge adds sealing ring and further increases leakproofness.
Above-mentioned fire-preventing check valve is installed, so that support plate 11 is mounted on wall and wind scooper 2 extends to flue
In；The working principle of above-mentioned fire-preventing check valve is specific as follows: box cover under the action of torsional spring 34 and automatic gravity of valve block 3 is being divulged information
(air outlet 122 is not and is vertical and is slightly slanted, so that 122 upper end of air outlet and support plate 11 at the air outlet 122 of pipe 12
Spacing be less than its lower end and support plate 11 spacing)；After oil smoke enters valve body 1 from air inlet 121,3 stress of valve block (oil
The active force of cigarette) it opens air outlet 122 and connecting plate 31 is driven to rotate around the first pivot 33, it is turned round at this point, connecting plate 31 squeezes
Spring 34 makes it generate deformation；When no oil smoke enters valve body 1 from air inlet 121, torsional spring 34 discharges elastic potential energy, makes connecting plate
31 rotate around the first pivot 33, to realize that valve block 3 closes air outlet 122；Why the repeat switch of valve block 3 can be realized,
Be the normal work because of temperature-sensing element 47: one end of temperature-sensing element 47 is fixed on bracket 44 at this time and the other end then extends to
It is buckled on the outer surface of plectrum 45, and between them by the compression of elastic component 46, plectrum 45, locking plate 42 and limited block 41 are phases
Mutually it is detached from.But when fire behavior is generated in flue and when spreading at fire-preventing check valve, temperature-sensing element 47 by thermal damage or fusing and
It can not effectively realize the clamping to bracket 44 and plectrum 45, elastic component 46 discharges elastic potential energy, so that plectrum 45 is around the second pivot
48 rotations, so that 45 synchronous drive locking plate of plectrum, 42 upward sliding, two upper ends insertion limited block 41 of Y type locking plate 42
Valve block 3 is securely limited in box cover state in locking gap 411.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention,
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (10)
1. a kind of fire-preventing check valve, it includes:
Valve body (1), the valve body (1) include ventilation duct (12) and the support plate for being formed in the ventilation duct (12) circumferential surface
(11), the ventilation duct (12) has air inlet (121) and air outlet (122)；
Valve block (3), the valve block (3) connect with the valve body (1) phase pivot and match with the air outlet (122)；
It is characterized in that, it further include:
Locking mechanism (4), the locking mechanism (4) include being mounted on the ventilation duct (12) circumferential surface and extending to beyond described
Multiple limited blocks (41) of air outlet (122), be slidably mounted in the valve block (3) surface and with the limited block (41) phase
The locking plate (42) of cooperation, one end are mounted on the bracket (44) and the bracket (44) phase pivot of the ventilation duct (12) circumferential surface
It connects and plectrum corresponding with the locking plate (42) (45), setting is between the bracket (44) and the plectrum (45)
Elastic component (46) and the temperature-sensing element (47) for connecting the bracket (44) and the plectrum (45)；
The locking mechanism (4), which has, unlocks and locks two states, when its is in the unlocked state, elastic component (46) quilt
Compression, the locking plate (42) are separated with the limited block (41)；When it is in the lock state, the temperature-sensing element (47)
By thermal damage, the elastic component (46) drives the plectrum (45) to keep the locking plate (42) same relative to the bracket (44) rotation
Step sliding, the locking plate (42) are mutually clamped with the limited block (41).
2. fire-preventing check valve according to claim 1, it is characterised in that: offer multiple waist types on the locking plate (42)
Hole (421), the locking plate (42) are slidably mounted by the multiple groups bolt pair (43) matched with the waist-shaped hole (421)
On the valve block (3).
3. fire-preventing check valve according to claim 1, it is characterised in that: be equipped with connection on the surface of the valve block (3)
Plate (31), the connecting plate (31) are connect by being arranged in the first pivot (33) therein with the bracket (44) phase pivot, institute
State the torsional spring (34) for being arranged on the first pivot (33) and resisting the connecting plate (31) and the bracket (44).
4. fire-preventing check valve according to claim 3, it is characterised in that: the end of the connecting plate (31) is formed with and it
Perpendicular limited block (32), the one end matched in the locking plate (42) with the plectrum (45) are formed through the limit
The convex block (422) of position block (32).
5. fire-preventing check valve according to claim 3, it is characterised in that: the surface of the connecting plate (31) be formed with it is convex
Block (422) is corresponding and the guiding skewback (35) that matches with the plectrum (45).
6. fire-preventing check valve according to claim 3, it is characterised in that: the bracket (44) includes being mounted on the ventilation
Manage (12) circumferential surface first connecting portion (441) and with the first connecting portion (441) free end integrally connected and formed
The second connecting portion (442) at obtuse angle, the connecting plate (31) are located at the first connecting portion (441) and the second connecting portion
(442) between.
7. fire-preventing check valve according to claim 1, it is characterised in that: offered and the lock on the limited block (41)
The locking gap (411) that stator (42) matches.
8. fire-preventing check valve according to claim 1, it is characterised in that: the other end of the bracket (44) is by being arranged in
Second pivot (48) therein connect with the plectrum (45) phase pivot, and the elastic component (46) is sheathed on second pivot
(48) on.
9. fire-preventing check valve according to claim 1, it is characterised in that: it further includes being mounted on the support plate (11) table
Face and wind scooper corresponding with the air outlet (122) (2) and at least one set for being mounted on the wind scooper (2) side are solid
Surely ear (5) are turned round.
10. fire-preventing check valve according to claim 1, it is characterised in that: air outlet described in the ventilation duct (12)
(122) end face locating for is formed fluted (23), and the edge of the valve block (3), which is formed with, to be matched with the groove (23)
Sealing (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820997764.6U CN208331346U (en) | 2018-06-26 | 2018-06-26 | A kind of fire-preventing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820997764.6U CN208331346U (en) | 2018-06-26 | 2018-06-26 | A kind of fire-preventing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331346U true CN208331346U (en) | 2019-01-04 |
Family
ID=64784963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820997764.6U Withdrawn - After Issue CN208331346U (en) | 2018-06-26 | 2018-06-26 | A kind of fire-preventing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208331346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488445A (en) * | 2018-06-26 | 2018-09-04 | 盐城市百世达建材有限公司 | A kind of fire-preventing check valve |
-
2018
- 2018-06-26 CN CN201820997764.6U patent/CN208331346U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488445A (en) * | 2018-06-26 | 2018-09-04 | 盐城市百世达建材有限公司 | A kind of fire-preventing check valve |
| CN108488445B (en) * | 2018-06-26 | 2023-12-22 | 盐城市百世达建材有限公司 | Fireproof check valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216479096U (en) | A high seal valve clack structure for fire prevention check valve | |
| CN208331346U (en) | A kind of fire-preventing check valve | |
| CN108488445A (en) | A kind of fire-preventing check valve | |
| CN206522759U (en) | A kind of boiler flue afterbody heat recovery system | |
| CN209054125U (en) | A kind of flow-guiding type fire-preventing check valve | |
| CN208251956U (en) | A kind of novel venting of dust explosion door | |
| CN207349526U (en) | A kind of novel guide formula fire resisting damper | |
| CN208312487U (en) | Range hood damper mechanism | |
| CN212028647U (en) | Full-lining disc type double-disc check valve | |
| CN210318661U (en) | Fireproof check valve and double-opening check door plate thereof | |
| CN210600312U (en) | Flow guiding type elbow wind check valve | |
| CN209386350U (en) | A kind of high airtightness desulfurization door of boiler tubing | |
| CN209012494U (en) | A kind of unit flame proof valve | |
| CN207990575U (en) | Biomass multiple-purpose steam boiler | |
| CN217029982U (en) | Water hammer-proof butterfly valve | |
| CN206475717U (en) | It is a kind of from spacing Mechanical stay bar | |
| CN207527090U (en) | A kind of reused mechanical fire-proof safety valve | |
| CN212389764U (en) | Novel valve | |
| CN202299327U (en) | Smoke exhaust structure | |
| CN206637643U (en) | A kind of chimney for cooling down boiler | |
| CN221034123U (en) | Fireproof check valve for flue | |
| CN215372561U (en) | Be used for one-way air door of condensing gas boiler smoke return prevention | |
| CN210716177U (en) | Flue non-return fire prevention valve and flue system with same | |
| CN209705347U (en) | One kind is anti-to suppress the unidirectional flame proof valve of passive type | |
| CN218955197U (en) | Gas collecting hood for gas water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190104 Effective date of abandoning: 20231222 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190104 Effective date of abandoning: 20231222 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |