CN208719469U - Fire-preventing check valve - Google Patents
Fire-preventing check valve Download PDFInfo
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- CN208719469U CN208719469U CN201821336272.9U CN201821336272U CN208719469U CN 208719469 U CN208719469 U CN 208719469U CN 201821336272 U CN201821336272 U CN 201821336272U CN 208719469 U CN208719469 U CN 208719469U
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Abstract
The utility model relates to a kind of fire-preventing check valve, solve the problems, such as that temperature-sensitive mechanism mounting structure is complicated.Fire-preventing check valve, including the valve body with exhaust outlet, valve block and bindiny mechanism, the bindiny mechanism connects the valve block and the valve body and for driving the valve block to close the exhaust outlet, the fire-preventing check valve further includes retaining mechanism, toggle mechanism, first elastic element and temperature-sensitive mechanism, the retaining mechanism and the toggle mechanism are arranged on the valve body, the temperature-sensitive mechanism connects the retaining mechanism and the toggle mechanism, after the temperature-sensitive mechanism action, the toggle mechanism drives the relatively described valve body of the bindiny mechanism, so that the bindiny mechanism closes the exhaust outlet by the valve block.
Description
Technical field
The utility model relates to a kind of fire-preventing check valves.
Background technique
Existing fire-preventing check valve (specific structure can refer to the utility model patent application No. is 201610651149.5)
Including valve seat, driving lever, temperature-sensitive mechanism and torsional spring, temperature-sensitive mechanism includes the first metal plate, the second metal plate and is used to connect first
The meltable solder of metal plate and the second metal plate, driving lever and the second metal plate and valve seat are rotatablely connected, a torque arm of torsional spring with
Valve seat connection, another torque arm of torsional spring connect with driving lever and driving lever are driven to offset with the first metal plate, and valve seat is equipped with limit
Part, when another torque arm of torsional spring is connect with driving lever and driving lever is driven to offset with the first metal plate, and the first metal plate and
Two metal plates by meltable solder connect when, the second metal plate offsets with locating part, with realize temperature-sensitive mechanism be clamped in driving lever and
Between locating part.However, the mounting structure of existing temperature-sensitive mechanism is complicated.
Utility model content
Problem to be solved in the utility model is just to provide a kind of fire-preventing check valve, to simplify the installation knot of temperature-sensitive mechanism
Structure.
To solve the above problems, the utility model provides the following technical solutions: fire-preventing check valve, including with exhaust outlet
Valve body, valve block and bindiny mechanism, the bindiny mechanism connect the valve block and the valve body and for driving the valve block to be closed
The exhaust outlet, the fire-preventing check valve further include retaining mechanism, toggle mechanism, the first elastic element and temperature-sensitive mechanism, described
Retaining mechanism and the toggle mechanism are arranged on the valve body, and the temperature-sensitive mechanism connects the retaining mechanism and stirs with described
Mechanism, after the temperature-sensitive mechanism action, the toggle mechanism drives the relatively described valve body of the bindiny mechanism, so that institute
It states bindiny mechanism and the exhaust outlet is closed by the valve block.
Further, temperature-sensitive mechanism one end is detachably arranged on the retaining mechanism and/or the temperature-sensitive mechanism
The other end is detachably arranged on the toggle mechanism.
Further, temperature-sensitive mechanism one end is arranged on the retaining mechanism, the temperature-sensitive mechanism other end and institute
State toggle mechanism clamping；Or, temperature-sensitive mechanism one end and the retaining mechanism are clamped, the setting of the temperature-sensitive mechanism other end exists
On the toggle mechanism；Or, temperature-sensitive mechanism one end and the retaining mechanism are clamped, the temperature-sensitive mechanism other end with it is described
Toggle mechanism clamping.
Further, the temperature-sensitive mechanism is including the first metal plate, the second metal plate and for connecting first metal
First solder of plate and second metal plate, first metal plate are arranged on the retaining mechanism, second metal
Plate is equipped with rotation prevention portion, and the rotation prevention portion and the toggle mechanism are clamped；Either, the temperature-sensitive mechanism includes for connecting
State the first solder of retaining mechanism Yu the toggle mechanism.
Further, the temperature-sensitive mechanism further includes the second solder being arranged on the retaining mechanism, second pricker
Material is arranged on the outside of the valve body, and first solder is arranged on the inside of the valve body.
Further, the retaining mechanism includes check lock lever, and the valve body includes ring baffle, is set on the ring baffle
There is a pilot hole, after the check lock lever runs through the pilot hole, the second solder setting is in described check lock lever one end, and described first
Metal plate is arranged in the check lock lever other end.
Further, the check lock lever includes screw, and second solder is clamped in the screw head and the annular
Between the outer end wall of baffle, the bar portion of the screw is fixedly connected with first metal plate.
Further, second solder is solder ring of the housing in the screw bar portion.
Further, the fire-preventing check valve further includes the fixed mechanism being movably disposed on the valve body, exhaust
The wall in road can be clamped between the fixed mechanism and the valve body；The fixed mechanism includes torsional spring, and the torsional spring is detachably
It is arranged on the inside of the valve body.
Further, the fire-preventing check valve further includes the second elastic element, and second elastic element is for driving institute
It states bindiny mechanism to rotate relative to the valve body, to keep the bindiny mechanism to close becoming for the exhaust outlet by the valve block
Gesture；The fire-preventing check valve further includes the flexible gaskets being arranged on the inside of the valve body.
The utility model has the beneficial effects that
In the utility model, fire-preventing check valve includes retaining mechanism and temperature-sensitive mechanism, temperature-sensitive mechanism connect retaining mechanism with
Wave mechanism.In the prior art, fire-preventing check valve needs to install temperature-sensitive mechanism by three steps in the fabrication process
On valve seat: step 1, temperature-sensitive mechanism are arranged on valve seat by fastener；Step 2, temperature-sensitive mechanism side and locating part phase
It supports；Step 3, the temperature-sensitive mechanism other side offset with driving lever.And in the present invention, first temperature-sensitive mechanism is arranged in locking machine
On structure, then, then by the setting of temperature-sensitive mechanism on toggle mechanism, by two above step, temperature-sensitive mechanism completes its installation step
Suddenly.It is designed in this way, by changing installation site, the mounting structure of temperature-sensitive mechanism, to realize the installation for simplifying fire-preventing check valve
Step, the production efficiency for improving fire-preventing check valve, the manufacturing cost for reducing fire-preventing check valve.
Detailed description of the invention
Fig. 1 is the perspective view of fire-preventing check valve in the preferred embodiment in the utility model；
Fig. 2 is the bottom view of fire-preventing check valve in the preferred embodiment in the utility model；
Fig. 3 is the cross-sectional view in Fig. 2 at A-A；
Fig. 4 is the cross-sectional view in Fig. 2 at B-B (retaining mechanism is in lock position)；
Fig. 5 is the cross-sectional view in Fig. 2 at B-B (retaining mechanism is in the unlocked position)；
Fig. 6 is the perspective view of retaining mechanism and temperature-sensitive mechanism in the preferred embodiment in the utility model；
Fig. 7 is the cross-sectional view of retaining mechanism and temperature-sensitive mechanism in the preferred embodiment in the utility model；
Fig. 8 is the perspective view of valve body in the preferred embodiment in the utility model；
Fig. 9 is the main view of toggle mechanism in the preferred embodiment in the utility model；
Figure 10 is the perspective view of the second valve seat in the preferred embodiment in the utility model；
Figure 11 is that the perspective view of part fire-preventing check valve in the preferred embodiment in the utility model (omits valve block and connection machine
Structure)；
Figure 12 is the perspective view (omitting toggle mechanism) of part fire-preventing check valve in the preferred embodiment in the utility model；
Figure 13 is the perspective view of bindiny mechanism in the preferred embodiment in the utility model.
Specific embodiment
The technical solution of the utility model embodiment is explained below with reference to the attached drawing of the utility model embodiment and
Illustrate, but following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode,
Those skilled in the art's obtained other embodiments without making creative work, belong to the utility model
Protection scope.
Referring to figs. 2 and 3, fire-preventing check valve, including valve body 1, valve block 2 and bindiny mechanism 3 with exhaust outlet 111, even
Connection mechanism 3 is for connecting valve block 2 and valve body 1 and valve block 2 can be driven to close exhaust outlet 111.
From figure 3, it can be seen that the valve body 1 of the present embodiment has exhaust passage 11, exhaust outlet 111 is arranged in exhaust passage 11
On, when valve block 2 closes exhaust outlet 111, the two sides that exhaust passage 11 is located at exhaust outlet 111 will be unable to realize the flowing of flue gas,
It means that the indoor flue gas of user cannot pass through fire-preventing check valve and enter exhaust duct when valve block 2 closes exhaust outlet 111
Interior, the flue gas in exhaust duct also cannot pass through fire-preventing check valve and enter in user room.Certainly, in the prior art, valve body can be with
Including the ring baffle with exhaust outlet, exhaust passage is not present on such valve body.
Bindiny mechanism 3 on fire-preventing check valve in such a way that valve block 2 closes exhaust outlet 111 there are three types of: 1, such as Fig. 3 institute
Showing, fire-preventing check valve includes the second elastic element 8, and the second elastic element 8 is one of the second torsional spring, tension spring and pressure spring, the
Two elastic elements 8 are for driving bindiny mechanism 3 to rotate with moving valve plate 1 relative to valve body 1, to keep bindiny mechanism 3 to pass through valve block 1
Close the trend of exhaust outlet 111；2, valve block remains turned-off the trend of exhaust outlet under the effect of gravity；3, bindiny mechanism is inclined
Heart setting, to keep valve block to close the trend of exhaust outlet.
Referring to Fig. 1, Fig. 4 and Fig. 6, difference from prior art is: in the present embodiment, fire-preventing check valve further includes lock
Tight mechanism 4, toggle mechanism 6, the first elastic element 7 and temperature-sensitive mechanism 5, retaining mechanism 4 and toggle mechanism 6 are arranged in valve body 1
On, temperature-sensitive mechanism 5 connects retaining mechanism 4 and toggle mechanism 6, and after the movement of temperature-sensitive mechanism 5, toggle mechanism 6 drives bindiny mechanism 3
Opposite valve body 1 moves, so that bindiny mechanism 3 closes exhaust outlet 111 by valve block 2.
In the utility model, 5 one end of temperature-sensitive mechanism is detachably arranged on retaining mechanism 4 and/or temperature-sensitive mechanism 5 is another
End is detachably arranged on toggle mechanism 6, such as: 5 one end of temperature-sensitive mechanism is arranged on retaining mechanism 4, and temperature-sensitive mechanism 5 is another
End is clamped with toggle mechanism 6；Or, 5 one end of temperature-sensitive mechanism and retaining mechanism 4 are clamped, the setting of 5 other end of temperature-sensitive mechanism is being stirred
In mechanism 6；Or, 5 one end of temperature-sensitive mechanism and retaining mechanism 4 are clamped, 5 other end of temperature-sensitive mechanism and toggle mechanism 6 are clamped.So
Design reduces the replacement cost of temperature-sensitive mechanism 5.
In conjunction with Fig. 4 and Fig. 6, it can be concluded that, the temperature-sensitive mechanism 5 of the present embodiment includes the first metal plate 521, the second metal plate
523 and the first solder 522 for connecting the first metal plate 521 and the second metal plate 523, the setting of the first metal plate 521 is being locked
In tight mechanism 4, the second metal plate 523 is equipped with rotation prevention portion 5231, and rotation prevention portion 5231 and toggle mechanism 6 are clamped, and works as retaining mechanism
4 when being located at lock position, and rotation prevention portion 5231 and toggle mechanism 6 are clamped to prevent the first elastic element 7 from driving toggle mechanism 6 opposite
Valve body 1 moves.In the other embodiments of the utility model, temperature-sensitive mechanism includes for connecting retaining mechanism and toggle mechanism
First solder；Either, temperature-sensitive mechanism includes the first memory metal for connecting retaining mechanism and toggle mechanism.
In the present embodiment, the first metal plate 521, the second metal plate 523 and the first solder 522 are arranged in 1 inside of valve body,
Temperature-sensitive mechanism 5 further includes the second solder 51 being arranged on retaining mechanism 4.In the other embodiments of utility model, the first gold medal
Belonging to plate, the second metal plate of part and the first solder can be set on the outside of valve body, at this point, need to only open on the ring baffle of valve body
If one is used to avoid the avoid holes of the second metal plate, to realize that the second metal plate of remainder is located on the inside of valve body.
First metal plate 521, the second metal plate 523 and the first solder 522 form temperature-sensitive unit 52, temperature-sensitive unit 52 and the
Two solders 51 form temperature-sensitive mechanism 5, and the setting of the second solder 51 is in 1 outside of valve body, and when indoor generation fire, the second solder 51 is molten
Change, check lock lever is axially moved from lock position and moves to unlocked position, to realize that valve block 2 closes exhaust outlet 111.Temperature-sensitive unit 51
Setting is in 1 inside of valve body, and when outdoor generation fire, the first solder 522 melts, the first metal plate 521 and the second metal plate 523
Separation, to realize that valve block 2 closes exhaust outlet 111.
In the present embodiment, first solder 52 and second solder 51 can be secret base, indium base, tinbase, cadmium base, zinc
One of solders such as base and lead base are a variety of.
Referring to Fig. 6 and Fig. 8, retaining mechanism 4 includes check lock lever, and valve body 1 includes downtake pipe 101, second exhaust pipe 103
With the ring baffle 102 that can be offseted with valve block 2, downtake pipe 101 is connected with second exhaust pipe 103 by ring baffle 102
It connecing, ring baffle 102 surrounds exhaust outlet 111, and ring baffle 102 is equipped with pilot hole 12, after check lock lever runs through pilot hole 12, the
The setting of two solders 51 is arranged in check lock lever one end, the first metal plate 521 in the check lock lever other end.Certainly, in the utility model
In other embodiments, check lock lever can be welded on the inside of valve body.
In the prior art, when temperature-sensitive mechanism is clamped between driving lever and locating part, driving lever applies the to the first metal plate
One active force, locating part apply the second active force to the second metal plate, and the first active force is identical as the second amount of force, direction
On the contrary, in other words, the trend that the first active force keeps the relatively meltable solder of the first metal plate to move upwards, the second effect is tried hard to keep
Hold the trend that the relatively meltable solder of the second metal plate moves downward, the position to offset due to driving lever and the first metal plate and locating part
The position to offset with the second metal plate mutually staggers, therefore, effect of the meltable solder director phase by twisting resistance.Twisting resistance is long-term
Acting on meltable solder will lead to the first metal plate (or second metal plate) and separates with meltable solder, it means that room temperature
Under environment, temperature-sensitive mechanism can cease to be in force automatically fire-preventing check valve after a period of use.After temperature-sensitive mechanism ceases to be in force automatically, torsional spring is driven
Rotate driving lever opposite valve seat, to realize that driving lever drives valve block to close exhaust outlet by connecting rod.
From fig. 6, it can be seen that check lock lever includes screw, the second solder 51 is clamped in screw head 41 and ring baffle 102
Outer end wall between, the bar portion 42 of screw is fixedly connected with the first metal plate 521.Second solder 51 can effectively improve temperature-sensitive machine
The service life of structure 5.
As shown in figure 4, the second solder 51 is clamped in screw head 41 and ring baffle when screw is located at lock position
Between 102 outer end wall, after the movement of temperature-sensitive mechanism 5, the first elastic element 7 drives screw from locking position by toggle mechanism 6
It sets and moves to unlocked position, as shown in figure 5, valve block 2 closes exhaust outlet 111 when screw is located at unlocked position.
The movement of temperature-sensitive mechanism 5 includes that the fusing of temperature-sensitive mechanism 5 acts.In the other embodiments of the utility model,
The temperature-sensitive mechanism may include the second memory metal, and the second memory metal is clamped between retaining mechanism and valve body, second
Memory metal deform movement (deformed movement include but is not limited to the second memory metal bend under pressure,
Two memory metal thickness change under pressure) after, the first elastic element by toggle mechanism drive retaining mechanism from
Lock position moves to unlocked position, and when retaining mechanism is located at unlocked position, valve block closes exhaust outlet.
Referring to Fig. 7, the second solder 51 is solder ring of the housing in screw bar portion 42, and solder ring 51 has mounting hole 511,
When 42 penetrating mounting holes 511 of bar portion of screw, solder ring 51 is clamped between the head 41 of screw and ring baffle 102.?
In the other embodiments of the utility model, retaining mechanism includes screw bolt and nut, after bolt-through solder ring and the first metal plate
It is fixedly connected with nut.
In addition, temperature-sensitive mechanism may include at least one block of solder plate, solder plate in the other embodiments of the utility model
It is clamped between the head of screw and ring baffle.
In the present embodiment, the height of rotation prevention portion 5231 is H1, and the axial length of solder ring is H3, H1 < H3.It is designed in this way,
After the fusing of solder ring, retaining mechanism 4 is with respect to the range > H1 that valve body 1 is axially moved, it means that working as retaining mechanism 4 from lock
Stop bit is set when moving to unlocked position, and rotation prevention portion 5231 will be separated with toggle mechanism 6.
In the present embodiment, a solder ring is clamped between the head 41 of screw and ring baffle 102, but practical new at this
In the other embodiments of type, the quantity for being clamped in the solder ring between fixed part and ring baffle can carry out according to actual needs
Adjustment.
In the present embodiment, the first metal plate 521 can by being clamped, being spirally connected, the modes such as hinged are detachably arranged in and lock
On the other end of bar, it is preferred that the first metal plate 521 is equipped with fixed section 5211, and fixed section 5211 is equipped with the bar with screw
The matched threaded hole in portion 42, therefore, the bar portion 42 of screw run through threaded hole, to realize the bar portion 42 and the first metal plate of screw
521 are fixedly connected.
Referring to Fig. 3 and Figure 13, bindiny mechanism 3 includes connecting rod 31, and 31 lower end of connecting rod and valve body 1 are rotatablely connected, on connecting rod 31
End is flexibly connected with valve block 2.In addition, connecting rod lower end can be along the sliding rail on valve body in the other embodiments of the utility model
Sliding, to realize that valve block closes exhaust outlet, and the upper end of connecting rod and valve block are rotatablely connected.
In the present embodiment, fire-preventing check valve further includes bolt 91 and nut 92, and bolt 91 sequentially passes through connecting rod 31 and valve block
It is fixedly connected after 2 with nut 92, when being fixedly connected after bolt 91 sequentially passes through connecting rod 31 and valve block 2 with nut 92, bolt head
The thickness of interval gap > valve block 2 between portion and nut 92 and the sum of the thickness of 31 upper plate 301 of connecting rod.
Preferably, the bolt 91 is shoulder bolt, shoulder bolt along it is axial successively include bolt head, step section and
Spiro rod section, valve block 2 are socketed in step section.
In the present embodiment, the bindiny mechanism 3 further includes shaft 10, and connecting rod 31 passes through 10 turns of shaft with the second valve seat 107
Dynamic connection.In the other embodiments of the utility model, one of the connecting rod and second valve seat are equipped with shaft, separately
One is equipped with the axis hole cooperated with shaft.
Referring to Fig. 9 and Figure 11, toggle mechanism 6 includes the driving lever being horizontally installed on valve body 1, and the marginal position of driving lever is equipped with
Switching part, the middle position outwardly convex of driving lever.In the other embodiments of the utility model, toggle mechanism arc panel, rotation
Bar and fastener for connecting arc panel and rotating bar.
Referring to Fig. 9, driving lever is equipped with the accommodating cavity for limiting 5 installation site of temperature-sensing element, specific: the outside of driving lever
Wall is equipped with locating slot 611, and locating slot 611 is the accommodating cavity, when rotation prevention portion 5231 and driving lever clamping, the second metal plate
523 are located in locating slot 611.It is designed in this way, effectively limits the second metal plate 523 and be connected to the position on toggle mechanism 6.At this
In the other embodiments of utility model, driving lever is equipped with location hole, and location hole is the accommodating cavity, and the second metal plate can be inserted into fixed
Position hole.
Preferably, the depth of locating slot 611 is H2, the thickness of the second metal plate of H2 > 523.
From fig. 9, it can be seen that the middle position of driving lever is equipped with the segmental arc 61 for connecting switching part, the outside of segmental arc
Wall is arc-shaped.It is designed in this way, driving lever is avoided to interfere during the motion with valve body 1.
In the present embodiment, switching part include shaft section 62 and clamping section 63, the first elastic element 7 be the first torsional spring, first
Torsional spring is socketed in clamping section 63.Certainly, in the other embodiments of the utility model, switching part can only include shaft section,
First torsional spring is socketed in shaft section；Either, switching part only includes axis hole section, and the first torsional spring is socketed on valve body.
Referring to Figure 12 and Figure 13, connecting rod 31 includes the first side plate 302, the second side plate 303 and is used to connect the first side plate 302
With the bottom plate 301 of the second side plate 303, the first side plate 302, bottom plate 301 and the second side plate 303 surround accommodating cavity 311, the first side
Plate 302 is equipped with the first tilting section 3021, and the second side plate 303 is equipped with the second tilting section 3031, after the movement of temperature-sensitive mechanism 5,
Toggle mechanism 6 is along the first tilting section 3021 and/or the positive sliding of the second tilting section 3031, so that connecting rod 31 is closed by valve block 2
Exhaust outlet 111.It is designed in this way, limits the direction of motion of toggle mechanism 6.
In the present embodiment, the first tilting section 3021 and/or the second tilting section 3031 are equipped at least one and dial for preventing
Protrusion of the bar along its reverse slide.It is designed in this way, effectively valve block 2 is prevented to open exhaust outlet under the action of high temperature gas flow
111。
Preferably, the protrusion is pawl, is designed in this way, driving lever will be unable to reverse slide.In other of the utility model
In embodiment, the protrusion can be boss.
Referring to Fig. 3 and Figure 10, valve body 1 is equipped with the first valve seat 106 and the second valve seat 107, the first valve seat 106 and valve body 1
It is connected by the first fixing screws 20, the second valve seat 107 is connect with valve body 1 by the second fixing screws 30.In the utility model
Other embodiments in, the first valve seat is snapped connection with valve body, and the second valve seat and valve body are linked together by welding.
In the present embodiment, fire-preventing check valve further includes the fixed mechanism being movably disposed on valve body 1, the wall of exhaust duct
It can be clamped between fixed mechanism and valve body 1, it is preferred that fixed mechanism includes torsional spring, and the utility model is convenient for distinguishing it
Referred to as third torsional spring, 1 inside of valve body is detachably arranged in third torsional spring, to realize that the wall of exhaust duct is clamped in the one of third torsional spring
Between torque arm and the inner wall of valve body 1.In the other embodiments of the utility model, fixed mechanism includes operating stick and fixture block,
Operating stick adjusts the spacing distance between fixture block and valve body, with realize the wall of exhaust duct be clamped in fixture block side wall and valve interior wall it
Between.
Preferably, fire-preventing check valve further includes the flexible gaskets that 1 inside of valve body is arranged in, when the wall of exhaust duct is clamped in admittedly
When determining between mechanism and valve body 1, flexible gaskets are squeezed to deform by the wall of valve body and exhaust duct, to realize sealing valve
Gap between body 1 and the wall of exhaust duct.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, those skilled in the art should be understood that the utility model includes but is not limited to attached drawing and specific embodiment above
Described in content.The modification of any function and structure principle without departing from the utility model is intended to be included in claims
In range.
Claims (10)
1. fire-preventing check valve, including valve body, valve block and bindiny mechanism with exhaust outlet, the bindiny mechanism connects the valve block
With the valve body and for driving the valve block to close the exhaust outlet, which is characterized in that the fire-preventing check valve further includes lock
Tight mechanism, toggle mechanism, the first elastic element and temperature-sensitive mechanism, the retaining mechanism and the toggle mechanism are arranged in the valve
On body, the temperature-sensitive mechanism connects the retaining mechanism and the toggle mechanism, described to stir after the temperature-sensitive mechanism action
Mechanism drives the relatively described valve body of the bindiny mechanism, so that the bindiny mechanism closes the exhaust by the valve block
Mouthful.
2. fire-preventing check valve as described in claim 1, which is characterized in that temperature-sensitive mechanism one end is detachably arranged in described
On retaining mechanism and/or the temperature-sensitive mechanism other end is detachably arranged on the toggle mechanism.
3. fire-preventing check valve as claimed in claim 2, which is characterized in that temperature-sensitive mechanism one end is arranged in the locking machine
On structure, the temperature-sensitive mechanism other end and the toggle mechanism are clamped；Or, temperature-sensitive mechanism one end and the retaining mechanism card
It connects, the temperature-sensitive mechanism other end is arranged on the toggle mechanism；Or, temperature-sensitive mechanism one end and the retaining mechanism card
It connects, the temperature-sensitive mechanism other end and the toggle mechanism are clamped.
4. fire-preventing check valve as described in claim 1, which is characterized in that the temperature-sensitive mechanism includes the first metal plate, second
Metal plate and the first solder for connecting first metal plate Yu second metal plate, the first metal plate setting exist
On the retaining mechanism, second metal plate is equipped with rotation prevention portion, and the rotation prevention portion and the toggle mechanism are clamped；Or
It is that the temperature-sensitive mechanism includes the first solder for connecting the retaining mechanism Yu the toggle mechanism.
5. fire-preventing check valve as claimed in claim 4, which is characterized in that the temperature-sensitive mechanism further includes being arranged in the locking
The second solder in mechanism, second solder are arranged on the outside of the valve body, and first solder is arranged in the valve body
Side.
6. fire-preventing check valve as claimed in claim 5, which is characterized in that the retaining mechanism includes check lock lever, the valve body
Including ring baffle, the ring baffle is equipped with pilot hole, after the check lock lever runs through the pilot hole, second solder
Setting is arranged in described check lock lever one end, first metal plate in the check lock lever other end.
7. fire-preventing check valve as claimed in claim 6, which is characterized in that the check lock lever includes screw, second solder
It is clamped between the screw head and the outer end wall of the ring baffle, the bar portion of the screw and first metal plate are solid
Fixed connection.
8. fire-preventing check valve as claimed in claim 7, which is characterized in that second solder is housing in the screw bar portion
On solder ring.
9. fire-preventing check valve as described in claim 1, which is characterized in that the fire-preventing check valve further includes movably being arranged
The wall of fixed mechanism on the valve body, exhaust duct can be clamped between the fixed mechanism and the valve body；The fixation
Mechanism includes torsional spring, and the torsional spring is detachably arranged on the inside of the valve body.
10. fire-preventing check valve as described in claim 1, which is characterized in that the fire-preventing check valve further includes the second elasticity member
Part, second elastic element is for driving the bindiny mechanism to rotate relative to the valve body, to keep the bindiny mechanism logical
Cross the trend that the valve block closes the exhaust outlet；The fire-preventing check valve further includes the flexible pad being arranged on the inside of the valve body
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821336272.9U CN208719469U (en) | 2018-08-19 | 2018-08-19 | Fire-preventing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821336272.9U CN208719469U (en) | 2018-08-19 | 2018-08-19 | Fire-preventing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208719469U true CN208719469U (en) | 2019-04-09 |
Family
ID=65978404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821336272.9U Active CN208719469U (en) | 2018-08-19 | 2018-08-19 | Fire-preventing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208719469U (en) |
-
2018
- 2018-08-19 CN CN201821336272.9U patent/CN208719469U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000381 Denomination of utility model: Fireproof check valve Granted publication date: 20190409 License type: Exclusive License Record date: 20200727 |
|
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