CN110425313A - Fire-preventing check valve - Google Patents
Fire-preventing check valve Download PDFInfo
- Publication number
- CN110425313A CN110425313A CN201910100899.7A CN201910100899A CN110425313A CN 110425313 A CN110425313 A CN 110425313A CN 201910100899 A CN201910100899 A CN 201910100899A CN 110425313 A CN110425313 A CN 110425313A
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- CN
- China
- Prior art keywords
- valve block
- valve
- fire
- ontology
- piece
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
- A62C4/04—Flame traps allowing passage of gas but not of flame or explosion wave in flues or chimneys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/033—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member spring-loaded
Abstract
The present invention relates to a kind of fire-preventing check valve, solve the problems, such as that fire-preventing check valve service life is short, poor user experience.Fire-preventing check valve, including ontology, valve block and bindiny mechanism, the ontology is equipped with exhaust outlet, the valve block lid is located on the exhaust outlet, the ontology is connect with the valve block by the bindiny mechanism, it is characterized in that, the fire-preventing check valve further includes the flexible piece that the ontology active force is hit for slowing down the valve block, the flexible piece includes the interconnecting piece and sealing for connecting the valve block, the sealing is connected to side of the interconnecting piece towards the ontology, when the valve block lid is located on the exhaust outlet, the sealing and/or the interconnecting piece are bonded the ontology to close the gap between the valve block and the ontology.
Description
Present patent application is the divisional application that invention and created name is " a kind of fire-preventing check valve ", the application of original application
Day is on August 9th, 2016, and application No. is 2016106548305.
Technical field
The present invention relates to a kind of fire-preventing check valves.
Background technique
Fire-preventing check valve includes valve body, valve block, torsional spring and connecting rod, and valve body has air inlet and air outlet, and valve block lid is located at
On air outlet, connecting rod one end and valve body are rotatablely connected, and the connecting rod other end and valve block are rotatablely connected, when torsional spring drive link is with respect to valve
When body rotates, valve block can close air outlet.Since valve block and valve body are each made of a metal, when valve block closes air outlet,
Valve block hits valve body and simultaneously generates noise, this, which has resulted in fire-preventing check valve, has the shortcomings that service life is short, poor user experience.
Summary of the invention
Problem to be solved by this invention is just to provide a kind of fire-preventing check valve, improves the user experience of fire-preventing check valve simultaneously
Improve its service life.
To solve the above problems, the invention provides the following technical scheme:
Fire-preventing check valve, including ontology, valve block and bindiny mechanism, the ontology are equipped with exhaust outlet, and the valve block lid is set
On the exhaust outlet, the ontology is connect with the valve block by the bindiny mechanism, and the fire-preventing check valve further includes solid
Determine part and hit the flexible piece of the ontology active force for slowing down the valve block, described fixing piece one end and the valve block connect
It connects, the fixing piece other end squeezes the flexible piece and is clamped in the flexible piece between the fixing piece and the valve block.
Further, the fixing piece offsets during the valve block closes the exhaust outlet with the ontology.
Further, the flexible piece includes the interconnecting piece and sealing for connecting the valve block, and the sealing connects
Connect in side of the interconnecting piece towards the ontology, when the valve block lid is located on the exhaust outlet, the sealing and/or
The interconnecting piece is bonded the ontology to close the gap between the valve block and the ontology.
Further, on the axial direction of the valve block, the thickness of the sealing is less than the interconnecting piece
Thickness.
Further, the interconnecting piece is equipped with groove, and the valve block is inserted into the groove.
Further, the interconnecting piece is end to end annular rubber ring, and the sealing is by the ring-shaped rubber
Enclose outwardly extending ring packing piece.
Further, the angle between the annular rubber ring and the ring packing piece is less than 60 °.
Further, the fixing piece is spring leaf, the connection of the spring leaf and the interconnecting piece and the sealing
Place offsets or the spring leaf offsets with the interconnecting piece.
Further, the fixing piece is connected by screw to the valve block.
A kind of fire-preventing check valve, including ontology, valve block and bindiny mechanism, the ontology are equipped with exhaust outlet, the valve block
Lid is located on the exhaust outlet, and the ontology is connect with the valve block by the bindiny mechanism, and the fire-preventing check valve also wraps
It includes fixing piece and hits the flexible piece of the ontology active force for slowing down the valve block, described fixing piece one end and the ontology
Connection, the fixing piece other end squeeze the flexible piece and make the flexible piece be clamped in the fixing piece and the ontology it
Between.
Beneficial effects of the present invention:
1, fire-preventing check valve of the invention includes flexible piece, and flexible piece is used to slow down the active force that valve block hits ontology, when
When the active force that valve block hits ontology becomes smaller, valve block is closed the noise that exhaust outlet is issued and will be greatly reduced.It is designed in this way, prevents fires
Check-valves is by reducing the noise issued in its course of work, to realize raising user experience.
2, since flexible piece is used to slow down the active force that valve block hits ontology, when valve block hits the active force of ontology
When becoming smaller, the service life of valve block can also be increase accordingly.The valve block of fire-preventing check valve belongs to wearing detail, when the service life of valve block
When increase, the service life of fire-preventing check valve can be increase accordingly.
3, fire-preventing check valve of the invention further includes fixing piece, and fixing piece one end is connect with valve block, and the fixing piece other end squeezes
Press flexible piece, flexible piece is clamped between fixing piece and valve block under the extruding of fixing piece, when flexible piece be clamped in fixing piece with
When between valve block, flexible piece is not susceptible to change with respect to the position of valve block, to ensure the leakproofness of fire-preventing check valve.So set
Meter, the service life of fire-preventing check valve can be increase accordingly.
4, fixing piece of the invention can offset during the valve block closes the exhaust outlet with the ontology, this is just
It is meant that at least partly fixing piece is corresponding adjacent to the side wall of exhaust outlet with ontology, reduced between flexible piece and ontology with realizing
Contact area；During valve block opens exhaust outlet, the frictional force generated between flexible piece and ontology will become smaller, and work as flexible piece
When the frictional force being subject to during the work time becomes smaller, the service life of flexible piece will be increased.Since flexible piece belongs to loss
Part, therefore, when the service life of flexible piece increases, the service life of fire-preventing check valve can be increase accordingly.
5, fire-preventing check valve of the invention further includes fixing piece, and fixing piece one end is connect with ontology, and the fixing piece other end squeezes
Press flexible piece, flexible piece is clamped between fixing piece and ontology under the extruding of fixing piece, when flexible piece be clamped in fixing piece with
When between ontology, the position of flexible piece opposing body is not susceptible to change, to ensure the leakproofness of fire-preventing check valve.So set
Meter, the service life of fire-preventing check valve can be increase accordingly.
6, interconnecting piece of the invention is used to increase the sealing performance of sealing and ontology.In other words: when sealing and this
When having gap between body, interconnecting piece applies active force on sealing, so that sealing is bonded ontology.It is designed in this way, solves
Fire-preventing check valve the problem of sealing performance is not good.
7, since fire-preventing check valve is for excluding oil smoke, when flexible piece includes interconnecting piece and sealing, oil smoke is only
Sealing need to be blown, separates sealing with ontology, the purpose of mist extractor can be realized.It is designed in this way, fire-preventing check valve can
By the lesser oil smoke of air quantity from indoor discharge.
Detailed description of the invention
Fig. 1 is the cross-sectional view of preferred embodiment of the present invention middle valve plate；
Fig. 2 is the fragmentary front view of fire-preventing check valve in the preferred embodiment of the present invention；
Fig. 3 is the side view of bindiny mechanism in the preferred embodiment of the present invention.
Specific embodiment
The technical solution of the embodiment of the present invention is explained and illustrated below with reference to the attached drawing of the embodiment of the present invention, but under
It states embodiment to be merely a preferred embodiment of the present invention, and not all.Based on the implementation example in the implementation mode, those skilled in the art
Obtained other embodiments without making creative work, belong to protection scope of the present invention.
Embodiment one
Referring to Figures 1 and 2, fire-preventing check valve, including ontology, valve block 1 and bindiny mechanism, ontology are equipped with exhaust outlet, valve
The lid of piece 1 is located on exhaust outlet, and ontology is connect with valve block 1 by bindiny mechanism.
Referring to Figures 1 and 2, the ontology of the present embodiment includes valve body and the valve seat 7 that is fixed on valve body, and valve body is equipped with and leads
Wind channel, air-guiding aisle have air inlet and air outlet, and the exhaust outlet is air outlet, and the lid of valve block 1 is located at air outlet, valve seat
7 and air-guiding aisle adjacent to air outlet side wall connect；The ontology of the present embodiment further includes shaft 61, and bindiny mechanism and valve seat 7 are logical
Cross the rotation connection of shaft 61,5 drive connection mechanism of elastic element, 61 rotation around the shaft, to keep valve block 1 to close becoming for air outlet
Gesture.In the other embodiment of the present invention, the exhaust outlet is air inlet, and valve block lid is located at air inlet, valve seat and air-guiding aisle
The side wall of neighbouring air inlet is linked together by welding, and either, valve seat and air-guiding aisle pass through spiral shell adjacent to the side wall of air inlet
Column connection；In addition, in other embodiments of the invention, ontology includes valve body and shaft, bindiny mechanism and valve body pass through shaft
Connection.
Referring to FIG. 1, FIG. 2 and FIG. 3, the bindiny mechanism of the present embodiment includes connecting rod 3 and the axle sleeve 4 that is fixed on connecting rod 3, even
Bar 3 is connect with valve block 1, and axle sleeve 4 is equipped with the first threaded hole 41, and the axial length of the first threaded hole 41 is H1, the thickness of connecting rod 1
For H2, H1 > H2.When shaft 61 runs through the first threaded hole 41, shaft 61 is threadedly coupled with axle sleeve 4.In other realities of the invention
It applies in example, bindiny mechanism includes connecting rod, and connecting rod is connect with shaft thread；Either, connecting rod outer profile is circle, and shaft is equipped with
Through-hole, connecting rod run through through-hole.
Referring to Fig.1, difference from prior art is: the fire-preventing check valve of the present embodiment further includes fixing piece 10 and uses
In the flexible piece 2 for slowing down the shock ontology active force of valve block 1,10 one end of fixing piece is connect with valve block 1, and 10 other end of fixing piece squeezes
Flexible piece 2 is simultaneously clamped in the flexible piece 2 between fixing piece 10 and valve block 1, specific: flexible piece 2 is for slowing down the shock of valve block 1
The active force of valve body, when valve block 1 closes exhaust outlet, valve block 1 is bonded valve body by flexible piece 2, to realize that valve block 1 closes exhaust
Mouthful.In other embodiments of the invention, ontology includes valve seat and the annular slab for being provided with exhaust outlet, and annular slab and valve seat connect
It connects, and the annular slab is in flat plate, when valve block closes exhaust outlet, valve block is bonded annular slab by flexible piece, with
Realize that valve block closes exhaust outlet.
Referring to Fig.1, the fixing piece 10 of the present embodiment offsets during valve block 1 closes exhaust outlet with ontology, specific:
During valve block 1 closes exhaust outlet, fixing piece 10 will occur mutually to collide with valve body, when valve block 1 is closed by flexible piece 2
When exhaust outlet, between fixing piece 10 and valve body between be separated with certain interval.Due to flexible piece 2 be clamped in fixing piece 10 and valve block 1 it
Between, therefore, whether fixing piece 10 can occur mutually collision during valve block 1 closes exhaust outlet with valve body, depend on flexibility
The extruding force that part 2 is subject to.In other embodiments of the invention, during valve block closes exhaust outlet, fixing piece will not be with
Valve body occur mutually collision, when valve block by flexible piece closing exhaust outlet when, between fixing piece and valve body between be separated with certain interval；
Either, during valve block closes exhaust outlet, fixing piece will occur mutually to collide with valve body, when valve block is closed by flexible piece
When closing exhaust outlet, fixing piece offsets with valve body.
Referring to Fig.1, the flexible piece 2 of the present embodiment includes the interconnecting piece 21 and sealing 22 for connecting valve block 1, sealing
22 are connected to side of the interconnecting piece 21 towards ontology, and when the lid of valve block 1 is located on exhaust outlet, sealing 22 and/or interconnecting piece 21 are pasted
Ontology is closed to close the gap between valve block 1 and ontology, specific: when the lid of valve block 1 is located on exhaust outlet, sealing 22 is bonded
Valve body is to close the gap between valve block 1 and valve body；Either, when the lid of valve block 1 is located on exhaust outlet, sealing 22 and connection
Portion 21 is bonded valve body to close the gap between valve block 1 and valve body；Either, when the lid of valve block 1 is located on exhaust outlet, interconnecting piece
21 fitting valve bodies are to close the gap between valve block 1 and valve body.
Preferably, on the axial direction of valve block 1, the thickness of sealing 22 is less than the thickness of interconnecting piece 21.
When 22 thickness of sealing is smaller, sealing 22, which will be fitted in the difficulty on valve body, to be reduced.Certainly, in of the invention other
In embodiment, the thickness of sealing can be greater than or equal to the thickness of interconnecting piece.
Referring to Fig.1, the interconnecting piece 21 of the present embodiment is equipped with groove 211, and valve block 1 is inserted into groove 211.In its of the invention
In his embodiment, interconnecting piece is pasted on valve block；Either interconnecting piece is fixed on valve block by rivet.
Referring to Fig.1, the interconnecting piece 21 of the present embodiment is end to end annular rubber ring, and groove 211 is to be arranged in annular
Annular groove on the inside of rubber ring, sealing 22 are by the outwardly extending ring packing piece of annular rubber ring, the ring packing piece
It is made of rubber.In other embodiments of the invention, ring type seal is linked together with ring packing piece by glue.When
So, in other embodiments of the invention, interconnecting piece is annular plastics circle, which is spliced by several arc plastics sections
It is formed, sealing is by the outwardly extending ring packing piece of annular plastics circle, which is made of refractory cotton.
Preferably, the angle between annular rubber ring and ring packing piece is a, 60 ° of a <.It is designed in this way, when valve body is neighbouring
There is uneven situation in the side wall of exhaust outlet, and at 60 ° of a <, annular rubber ring, which squeezes annular diaphragm seal, simultaneously makes annular close
Mounting is bonded valve body, to realize that valve block 1 closes exhaust outlet.
Referring to Fig.1, the fixing piece 10 of the present embodiment is spring leaf, and spring leaf offsets with interconnecting piece 21.In its of the invention
In his embodiment, the junction of spring leaf and interconnecting piece and sealing offsets.Certainly, in other embodiments of the invention, Gu
Determining part can be made of plastic refractory, and the plastic refractory is in flat.
Preferably, fixing piece 10 is connected by screw to valve block 1, and the present embodiment is convenient for distinguishing the screw being known as the
One screw.In other embodiments of the invention, fixing piece and valve block pass through rivet interlacement.
Referring to Fig. 2, fire-preventing check valve further includes the second screw 6, and shaft 61 is the bar portion of the second screw 6, also, the second spiral shell
Nail 6 is threadedly coupled with valve seat 7, mobile to prevent 6 opposite valve seat 7 of the second screw that position occurs.In the other embodiment of the present invention
In, shaft is screw rod, and the screw rod and valve seat are integrally formed.
Referring to Figure 1 and Figure 3, the connecting rod 3 of the present embodiment and valve block 1 are rotatablely connected, specific: fire-preventing check valve further includes the
Three screws 8 and the 4th screw, connecting rod 3 are equipped with the second threaded hole 31 far from one end of axle sleeve 4, and bindiny mechanism further includes connector 9,
Connector 9 is equipped with the first avoid holes, and third screw 8 passes through the first avoid holes and connect with the second threaded hole 31, to realize connection
Part 9 is fixed on connecting rod 3；Valve block 1 is equipped with the second avoid holes 11, is additionally provided with third threaded hole on connector 9, the 4th screw is worn
It crosses the second avoid holes 11 to connect with third threaded hole, to realize that connector 9 is fixed on valve block 1.It is designed in this way, increases valve block 1
The motion range of opposite bindiny mechanism.In other embodiments of the invention, connecting rod and valve block are rotatablely connected, either, connecting rod
It is fixed on valve block.
Referring to Fig. 3, it is preferred that connecting rod 3 is additionally provided with escape groove 32 far from one end of axle sleeve 4, when the 4th screw passes through second
When avoid holes 11 are connect with third threaded hole, escape groove 32 can avoid connecting rod 3 and interfere with the 4th screw.
Embodiment two
Fire-preventing check valve, including ontology, valve block and bindiny mechanism, the ontology are equipped with exhaust outlet, and the valve block lid is set
On the exhaust outlet, the ontology is connect with the valve block by the bindiny mechanism.
The ontology of the present embodiment includes valve body and the valve seat that is fixed on valve body, and valve body is equipped with air-guiding aisle, and wind-guiding is logical
Road has air inlet and air outlet, and the exhaust outlet is air outlet, and valve block lid is located at air outlet, and valve seat is neighbouring with air-guiding aisle
The side wall of air outlet connects；The ontology of the present embodiment further includes that shaft, bindiny mechanism and valve seat are rotatablely connected by shaft, elasticity
Element drive connection mechanism rotates around the axis, to keep valve block to close the trend of air outlet.In the other embodiment of the present invention, institute
Stating exhaust outlet is air inlet, and valve block lid is located at air inlet, valve seat and air-guiding aisle and is connected adjacent to the side wall of air inlet by welding
It is integrated, either, valve seat and air-guiding aisle pass through Stud connection adjacent to the side wall of air inlet；In addition, in of the invention other
In embodiment, ontology includes valve body and shaft, and bindiny mechanism and valve body are rotatablely connected by shaft.
The bindiny mechanism of the present embodiment includes connecting rod and the axle sleeve that is fixed on connecting rod, and connecting rod is connect with valve block, on axle sleeve
Equipped with the first threaded hole, the axial length of the first threaded hole is H1, connecting rod with a thickness of H2, H1 > H2.When shaft runs through first
When threaded hole, shaft is connect with sleeve thread.In other embodiments of the invention, bindiny mechanism includes connecting rod, connecting rod with turn
Axle thread connection.
Difference from prior art is: the fire-preventing check valve of the present embodiment further includes fixing piece and for slowing down valve block
The flexible piece of ontology active force is hit, fixing piece one end is connect with ontology, and the fixing piece other end squeezes flexible piece and makes the flexibility
Part is clamped between fixing piece and ontology, specific: flexible piece is used to slow down the active force that valve block hits valve body, when valve block is closed
When exhaust outlet, valve block is bonded valve body by flexible piece, to realize that valve block closes exhaust outlet.In other embodiments of the invention,
Ontology includes valve seat and the annular slab for being provided with exhaust outlet, and annular slab is connect with valve seat, and the annular slab is in flat plate
Shape, when valve block closes exhaust outlet, valve block is bonded annular slab by flexible piece, to realize that valve block closes exhaust outlet.
The fixing piece of the present embodiment offsets during valve block closes exhaust outlet with valve block, specific: closing in valve block
During exhaust outlet, fixing piece will occur mutually to collide with valve block, when valve block closes exhaust outlet by flexible piece, fixing piece
Certain interval is separated between valve block.Since flexible piece is clamped between fixing piece and valve body, fixing piece is closed in valve block
Whether mutually collision, the extruding force being subject to depending on flexible piece can occur with valve block during closing exhaust outlet.Of the invention
In other embodiments, during valve block closes exhaust outlet, mutually collision will not occur with valve block for fixing piece, when valve block passes through
Flexible piece close exhaust outlet when, between fixing piece and valve block between be separated with certain interval；Either, the mistake of exhaust outlet is closed in valve block
Cheng Zhong, fixing piece will occur mutually to collide with valve block, when valve block closes exhaust outlet by flexible piece, fixing piece and valve block phase
It supports.
The flexible piece of the present embodiment includes the interconnecting piece and sealing for connecting ontology, and sealing is connected to interconnecting piece face
To the side of valve block, when valve block lid is located on exhaust outlet, sealing and/or interconnecting piece fitting valve block with close valve block and ontology it
Between gap, it is specific: when valve block lid is located on exhaust outlet, between sealing is bonded valve block to close between valve block and valve body
Gap；Either, when valve block lid is located on exhaust outlet, sealing and interconnecting piece fitting valve block are to close between valve block and valve body
Gap；Either, when valve block lid is located on exhaust outlet, interconnecting piece is bonded valve block to close the gap between valve block and valve body.
The interconnecting piece of the present embodiment is end to end annular rubber ring, and annular rubber ring is pasted on valve body, sealing
For by the outwardly extending ring packing piece of annular rubber ring, which is made of rubber.
Preferably, the angle between annular rubber ring and ring packing piece is a, 60 ° of a <.
The fixing piece of the present embodiment is spring leaf, and spring leaf offsets with interconnecting piece.In other embodiments of the invention, bullet
The junction of reed and interconnecting piece and sealing offsets.Certainly, in other embodiments of the invention, fixing piece can be by fire resisting
Plastics are made, and the plastic refractory is in flat.
Preferably, fixing piece is connected by screw to valve body, and the present embodiment is convenient for distinguishing the screw being known as first
Screw.In other embodiments of the invention, fixing piece and valve body pass through rivet interlacement.
The fire-preventing check valve of the present embodiment further includes the second screw, and shaft is the bar portion of the second screw, also, the second screw
It is threadedly coupled with valve seat, it is mobile to prevent the second screw opposite valve seat that position occurs.In other embodiments of the invention, shaft
For screw rod, the screw rod and valve seat are integrally formed.
The connecting rod and valve block of the present embodiment are rotatablely connected, and specific: fire-preventing check valve further includes third screw and the 4th spiral shell
Nail, connecting rod are equipped with the second threaded hole far from one end of axle sleeve, and bindiny mechanism further includes connector, and connector is equipped with the first evacuation
Hole, third screw passes through the first avoid holes and connect with the second threaded hole, to realize that connector is fixed on connecting rod；Valve block is equipped with
Second avoid holes are additionally provided with third threaded hole on connector, and the 4th screw passes through the second avoid holes and connect with third threaded hole, with
Realize that connector is fixed on valve block.It is designed in this way, increases motion range of the valve block with respect to bindiny mechanism.In other of the invention
In embodiment, connecting rod and valve block are rotatablely connected.
Preferably, connecting rod is additionally provided with escape groove far from one end of axle sleeve, when the 4th screw passes through the second avoid holes and third
When threaded hole connects, escape groove can avoid connecting rod and interfere with the 4th screw.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, is familiar with
Those skilled in the art should be understood that the present invention including but not limited to attached drawing and above content described in specific embodiment.
Any modification without departing from function and structure principle of the invention is intended to be included in the range of claims.
Claims (10)
1. fire-preventing check valve, including ontology, valve block and bindiny mechanism, the ontology is equipped with exhaust outlet, and the valve block lid is located at
On the exhaust outlet, the ontology is connect with the valve block by the bindiny mechanism, which is characterized in that the fire-preventing check valve
It further include the flexible piece that the ontology active force is hit for slowing down the valve block, the flexible piece includes for connecting the valve
The interconnecting piece and sealing of piece, the sealing are connected to side of the interconnecting piece towards the ontology, and the valve block lid is set
When on the exhaust outlet, the sealing and/or the interconnecting piece are bonded the ontology to close the valve block and described
Gap between body.
2. fire-preventing check valve as described in claim 1, which is characterized in that the lateral surface of the sealing is interior with the interconnecting piece
Gap is equipped between side.
3. fire-preventing check valve as claimed in claim 2, which is characterized in that the interconnecting piece is end to end annular rubber ring,
The sealing is by the outwardly extending ring packing piece of the annular rubber ring.
4. fire-preventing check valve as claimed in claim 3, which is characterized in that the medial surface of the annular rubber ring and the annular are close
Gap between the lateral surface of mounting forms angle, and the angle is less than 60 °.
5. fire-preventing check valve as described in claim 1, which is characterized in that on the axial direction of the valve block, the sealing
Thickness be less than the interconnecting piece thickness.
6. fire-preventing check valve as described in claim 1, which is characterized in that the interconnecting piece is equipped with groove, the valve block insertion
The groove.
7. fire-preventing check valve as described in claim 1, which is characterized in that the fire-preventing check valve further includes fixing piece, described solid
Determine part one end to connect with the valve block, the fixing piece other end squeezes the flexible piece and to be clamped in the flexible piece described solid
Determine between part and the valve block；Or, described fixing piece one end is connect with the ontology, the fixing piece other end squeezes described soft
Property part is simultaneously clamped in the flexible piece between the fixing piece and the ontology.
8. fire-preventing check valve as claimed in claim 7, which is characterized in that the fixing piece is spring leaf, the spring leaf and institute
The junction for stating interconnecting piece and the sealing offsets or the spring leaf offsets with the interconnecting piece；The fixing piece and institute
Valve block is stated to connect by the first screw.
9. fire-preventing check valve as described in claim 1, which is characterized in that the ontology includes valve body and is fixed on the valve body
Valve seat, the valve body be equipped with air-guiding aisle, the air-guiding aisle have air inlet and air outlet, the exhaust outlet be outlet air
Mouthful, the valve block lid is located at the air outlet, and side wall of the valve seat with the air-guiding aisle adjacent to the air outlet is connect；
The ontology further includes shaft, and the bindiny mechanism is rotatablely connected with the valve seat by the shaft, the fire-preventing check valve
It further include elastic element, the elastic element drives the bindiny mechanism to rotate around the shaft, to keep the valve block to close
The trend of the air outlet；The bindiny mechanism includes connecting rod and the axle sleeve that is fixed on the connecting rod, the connecting rod with it is described
Valve block connection, the axle sleeve are equipped with the first threaded hole, and the axial length of first threaded hole is H1, the thickness of the connecting rod
For H2, H1 > H2；When the shaft runs through first threaded hole, the shaft is connect with the sleeve thread.
10. fire-preventing check valve as claimed in claim 9, which is characterized in that the fire-preventing check valve further includes the second screw, described
Shaft is the bar portion of the second screw, also, second screw is threadedly coupled with the valve seat, to prevent the second screw phase
It is mobile that position is occurred to the valve seat；The connecting rod and the valve block are rotatablely connected；The fire-preventing check valve further includes third spiral shell
Nail and the 4th screw, the connecting rod are equipped with the second threaded hole far from one end of the axle sleeve, and the bindiny mechanism further includes connection
Part, the connector are equipped with the first avoid holes, and the third screw passes through first avoid holes and second threaded hole
Connection, to realize that the connector is fixed on the connecting rod；The valve block is equipped with the second avoid holes, goes back on the connector
Equipped with third threaded hole, the 4th screw passes through second avoid holes and connect with the third threaded hole, described in realizing
Connector is fixed on the valve block；The connecting rod is additionally provided with escape groove far from one end of the axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100899.7A CN110425313B (en) | 2016-08-09 | 2016-08-09 | Fireproof check valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100899.7A CN110425313B (en) | 2016-08-09 | 2016-08-09 | Fireproof check valve |
| CN201610654830.5A CN106051235B (en) | 2016-08-09 | 2016-08-09 | Fireproof check valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610654830.5A Division CN106051235B (en) | 2016-08-09 | 2016-08-09 | Fireproof check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110425313A true CN110425313A (en) | 2019-11-08 |
| CN110425313B CN110425313B (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610654830.5A Active CN106051235B (en) | 2016-08-09 | 2016-08-09 | Fireproof check valve |
| CN201910100899.7A Active CN110425313B (en) | 2016-08-09 | 2016-08-09 | Fireproof check valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610654830.5A Active CN106051235B (en) | 2016-08-09 | 2016-08-09 | Fireproof check valve |
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| CN (2) | CN106051235B (en) |
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| US3612097A (en) * | 1968-10-14 | 1971-10-12 | K F Prince Valve Inc | Check valve |
| CN102135202A (en) * | 2010-01-22 | 2011-07-27 | 百乐仕株式会社 | Valve body for opening and closing flow path |
| KR20120048177A (en) * | 2010-11-05 | 2012-05-15 | 이봉춘 | Disk of nonreturn valve |
| CN202484369U (en) * | 2012-03-27 | 2012-10-10 | 洪灿城 | Butterfly check valve |
| CN202659990U (en) * | 2012-06-11 | 2013-01-09 | 保一集团有限公司 | Adjustable swing check valve |
| CN202733068U (en) * | 2012-05-16 | 2013-02-13 | 李鼎宏 | Fireproof lampblack discharge check valve of common flue |
| CN103851234A (en) * | 2014-02-21 | 2014-06-11 | 武汉圣禹排水系统有限公司 | Low-resistance zero-pressure sealing rubber flap valve checking device |
| CN104266205A (en) * | 2014-08-25 | 2015-01-07 | 许高歌 | Check sealing structure for smoke exhaust equipment |
| CN204187057U (en) * | 2014-10-24 | 2015-03-04 | 江苏润田水工业设备有限公司 | Crashproof flap valve |
| CN204253950U (en) * | 2014-10-23 | 2015-04-08 | 天津市国威给排水设备制造有限公司 | A kind of leakage-proof backflow-proof valve |
| CN205026153U (en) * | 2015-10-09 | 2016-02-10 | 杭州小米环境科技有限公司 | Fire -proof check valve |
| CN205118343U (en) * | 2015-09-30 | 2016-03-30 | 无锡市爱德森机械有限公司 | Clap door with endurance sealing device |
| CN205315785U (en) * | 2016-01-21 | 2016-06-15 | 江苏兆盛环保股份有限公司 | Energy -conserving bat family of power and influence of self sealss |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285816A (en) * | 1991-12-11 | 1994-02-15 | Rapid Developments Ltd. | One way valve |
| US9360133B2 (en) * | 2014-10-14 | 2016-06-07 | Kennedy Valve Company | Cushioned check valve |
| CN205908812U (en) * | 2016-08-09 | 2017-01-25 | 杭州小米环境科技有限公司 | Fire -proof check valve |
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2016
- 2016-08-09 CN CN201610654830.5A patent/CN106051235B/en active Active
- 2016-08-09 CN CN201910100899.7A patent/CN110425313B/en active Active
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|---|---|---|---|---|
| US3612097A (en) * | 1968-10-14 | 1971-10-12 | K F Prince Valve Inc | Check valve |
| CN102135202A (en) * | 2010-01-22 | 2011-07-27 | 百乐仕株式会社 | Valve body for opening and closing flow path |
| KR20120048177A (en) * | 2010-11-05 | 2012-05-15 | 이봉춘 | Disk of nonreturn valve |
| CN202484369U (en) * | 2012-03-27 | 2012-10-10 | 洪灿城 | Butterfly check valve |
| CN202733068U (en) * | 2012-05-16 | 2013-02-13 | 李鼎宏 | Fireproof lampblack discharge check valve of common flue |
| CN202659990U (en) * | 2012-06-11 | 2013-01-09 | 保一集团有限公司 | Adjustable swing check valve |
| CN103851234A (en) * | 2014-02-21 | 2014-06-11 | 武汉圣禹排水系统有限公司 | Low-resistance zero-pressure sealing rubber flap valve checking device |
| CN104266205A (en) * | 2014-08-25 | 2015-01-07 | 许高歌 | Check sealing structure for smoke exhaust equipment |
| CN204253950U (en) * | 2014-10-23 | 2015-04-08 | 天津市国威给排水设备制造有限公司 | A kind of leakage-proof backflow-proof valve |
| CN204187057U (en) * | 2014-10-24 | 2015-03-04 | 江苏润田水工业设备有限公司 | Crashproof flap valve |
| CN205118343U (en) * | 2015-09-30 | 2016-03-30 | 无锡市爱德森机械有限公司 | Clap door with endurance sealing device |
| CN205026153U (en) * | 2015-10-09 | 2016-02-10 | 杭州小米环境科技有限公司 | Fire -proof check valve |
| CN205315785U (en) * | 2016-01-21 | 2016-06-15 | 江苏兆盛环保股份有限公司 | Energy -conserving bat family of power and influence of self sealss |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110425313B (en) | 2021-09-10 |
| CN106051235B (en) | 2020-12-22 |
| CN106051235A (en) | 2016-10-26 |
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