CN207864701U - Check valve for flue - Google Patents
Check valve for flue Download PDFInfo
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- CN207864701U CN207864701U CN201721706516.3U CN201721706516U CN207864701U CN 207864701 U CN207864701 U CN 207864701U CN 201721706516 U CN201721706516 U CN 201721706516U CN 207864701 U CN207864701 U CN 207864701U
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Abstract
The utility model provides a kind of check valve for flue, solves the technical issues of single valve piece check (non-return) valve is poorly sealed, and flue collector oil smoke is easy to ooze check (non-return) valve, oil smoke is made to pour in down a chimney when being covered in air outlet.The device includes valve body, and the valve body is provided with oil smoke channel, and the oil smoke channel perforation is provided with air intake vent and air outlet, valve block is provided at the air outlet, the valve block can cover the air outlet；The valve block is connect with the valve body by drive rod, and spring is provided between the drive rod and the valve body, sealing ring is provided between the valve block and the air outlet.The utility model is connect using single valve piece with valve body single-point, and valve block is provided with sealing ring with valve body contact face, and valve block is made to form complete seal with valve body, and the oil smoke in flue collector will not enter valve body from the gap of valve block and valve body contact.
Description
Technical field
The utility model is related to oil smoke check (non-return) valve design fields, more particularly, to a kind of Domestic flue check (non-return) valve.
Background technology
Check valve for flue refers to the check (non-return) valve mounted on floss hole, and presently, there are twayblade, single blades two for check valve for flue
Type is respectively mainly characterized in that：
Twayblade：The shaft of blade is generally located on the center position of sealed section, and blade is broken generally into arranged on left and right sides half
The two panels of ellipse, shaft be among oil smoke channel, and because of the needs that its own is rotated, at shaft will produce flue gas lets out
Leakage, it is advantageous that will not pull open blade due to the air-flow steeply risen in flue.
Single blade：Blade rotor may be provided at the outside or inside of ventilating duct, and blade is generally complete round or ellipse
Circle, air outlet are extend into public gas flue, are provided with the valve block that can be opened at the air outlet of oil smoke channel, valve block passes through level
The valve block shaft of setting is rotatably installed on the inner wall in oil smoke channel.When without using kitchen ventilator, valve block due to its own gravity at
In closed position, valve block is covered in outlet air oral area；When using kitchen ventilator, valve block is in an open position, and valve block is far from air outlet.Its
Advantage is that sealing surface is single, complete monoblock type, and the gap of itself is less, alters the probability of cigarette, permeability also therefore compared with twayblade
It is low, its integral sealing effect is often better than twayblade pattern under normal circumstances.
Existing single blade formula check (non-return) valve is general to realize beating for blade air outlet using spring is arranged at blade rotor
The closing opened, but if the setting of spring-return power is inappropriate, for skyscraper, the air-flow formed in flue collector may make blade
Inside and outside formation pressure difference, makes blade open, and causes the oil smoke in flue collector to enter kitchen, and spring uses also be easy out for a long time
The case where existing restoring force becomes smaller, blade cannot be replied effectively.
Applicants have discovered that at least there is following technical problem in the prior art：In single blade formula check (non-return) valve, it is used only in drive
The mode of lever setting spring forms the restoring force of blade, after blade is placed at air outlet, holds under the airflow function of flue collector
It easily opens, is detached from air outlet, so that the oil smoke in flue collector is poured in down a chimney into kitchen, generate peculiar smell.
Utility model content
The purpose of this utility model is to provide check valve for flue, to solve single valve piece check (non-return) valve existing in the prior art
It is poorly sealed, the technical issues of flue collector oil smoke is easy to ooze check (non-return) valve, oil smoke is made to pour in down a chimney when being covered in air outlet.This practicality is new
(valve block screen resilience is stronger, has for many technique effects that optimal technical scheme in many technical solutions that type provides can be generated
There is auxillary flue to prevent oil smoke from pouring in down a chimney) elaboration as detailed below.
To achieve the above object, the utility model provides following technical scheme：
Check valve for flue provided by the utility model, including valve body, the valve body are provided with oil smoke channel, and the oil smoke is logical
Road perforation is provided with air intake vent and air outlet, valve block is provided at the air outlet, the valve block can cover the air outlet；
The valve block is connect with the valve body by drive rod, and spring, the valve block are provided between the drive rod and the valve body
It is provided with sealing ring between the air outlet.
Preferably, the sealing ring is set to the valve block outer, and the air outlet edge is provided with the extension of transition successively
The first extension, the second extension and third extension, the valve block at least covers first extension, the sealing ring
It is covered in the third extension.
Preferably, the sealing ring includes the first sealing, the second sealing and third sealing, first sealing
Extend respectively to the air outlet direction with second sealing, is respectively used to and first extension and the second extension
Fitting, the third sealing are bonded with the third extension.
Preferably, section is " K " shape to the sealing ring in an axial direction, and first sealing is set as " K " shape right lower quadrant；Institute
It states the second sealing and is set as " K " shape upper right quarter, the third sealing is set as " K " shape left part.
Preferably, it is provided with clamp device between the valve block and air outlet, for reinforcing the valve block and the outlet air
Connection between mouthful.
Preferably, the clamp device is the magnet being set on the valve block and/or on the air outlet.
Preferably, it is provided with auxillary flue on the outside of the air outlet.
Preferably, it is provided with ladder-like clamping ring at the air intake vent.
Preferably, the sealing ring is silica gel ring.
Preferably, the drive rod is arranged along the valve block diametric(al).
The check valve for flue of the utility model is connect using single valve piece with valve body single-point, and valve block is arranged with valve body contact face
Have sealing ring, valve block and valve body made to form complete seal, the oil smoke in flue collector will not from the gap of valve block and valve body contact into
Enter valve body, and the air-flow in flue collector will not make valve block be detached from valve body easily,
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the check valve for flue dimensional structure diagram of the utility model；
Fig. 2 is the utility model check valve for flue side view；
Fig. 3 is the utility model check valve for flue sealing ring diametrically cross-sectional detail figure；
Fig. 4 is the air outlet structure schematic diagram of the utility model check valve for flue.
1, mounting portion in figure；11, air intake vent；12, clamping ring；2, function part；21, air outlet；214, the first extension；
215, the second extension；216, third extension；22, valve block；23, sealing ring；231, the first sealing；232, the second sealing
Portion；233, third sealing；24, drive rod；25, bearing；26, auxillary flue；27, axis；29, reversing bar；210, metallic rod；211、
Spring；212, oil smoke channel；
Specific implementation mode
It, below will be to the technology of the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
The utility model provides a kind of kitchen ventilator check (non-return) valve, including valve body, and valve body is provided centrally with oil smoke channel 212；
Valve body includes mounting portion 1 and function part 2, and mounting portion 1 is connect with function part 2；Wherein, the mounting portion 1 has air intake vent 11, work(
Energy portion 2 has air outlet 21, valve block 22 is provided at air outlet 21, for opening or being closed oil smoke channel；The valve block 22
It is connect by drive rod 24 with valve body, drive rod 34 can rotate with moving valve plate 22, open or close oil smoke channel
212；It is provided with spring 211 at drive rod 24, realizes the unlatching and reset of valve block 22；It is provided at valve block 22 and air outlet 21 close
Seal 23, the sealing ring 23 mainly plays sealing, while ensuring that oil smoke will not be flow backwards and getting in.Below in conjunction with attached
Figure is described in detail the utility model.
Specifically, as shown in Fig. 1~2, valve body includes mounting portion 1 and function part 2.The mounting portion 1 is wear-resisting, quality
Gently, the product that hardness height, on-deformable material are processed into, such as ABS plastic.The mounting portion 1 includes with certain thickness
Assembly side, the quadrangle of the assembly side open up fluted, and through-hole is equipped in groove, the through-hole for being fixedly connected with wall,
The cross sectional shape of the assembly side is preferably square.
Further include along the oil smoke channel 212 that assembly side central axis extends, the oil smoke channel 212 is used for inhaling kitchen ventilator
The oil smoke entered is sent into flue collector.11 periphery of air intake vent is provided with the stair-stepping clamping ring 12 that diameter is sequentially increased, the connection
The diameter of circle is set between 15cm-20cm, and the clamping ring of triple different-diameters can be arranged, and is used for and various sizes of smoke evacuation
Pipe connects.
Correspondingly, function part 2 is provided with for carrying out the pedestal that screw connects, the top in oil smoke channel 212 with mounting portion 1
Portion is provided with air outlet 21, the sealing for having valve block 22 and seal positioned at the two junction with air outlet cooperation
Circle 23.The sealing ring is made of the preferable material of soft and elastic, the material selection silica gel of sealing ring in the utility model.
In order to make sealing effect more preferably, the sealing ring 23 of the utility model uses triple seal, as shown in Fig. 3~4,
21 edge of air outlet is provided with the first extension 214, the second extension 215, third extension 216, wherein the first extension
214 axially extend from air outlet 21, the second extension 215 radially extends on the basis of the first extension 214, and third extends
Portion 216 continues to extend both axially and radially on the basis of the second extension 215, and third extension 216 is made to be formed to axially expanding
It is horn-like.
Wherein, valve block 22 covers the first extension 214 just, and sealing ring 23 is set to 22 edge of valve block, when valve block 22 is good
When being covered in the first extension 214, sealing ring 23 is covered on the second extension 215 and third extension 216 just.Sealing
Circle 23 is provided with the first sealing 231, the second sealing 232, third sealing 233, the first sealing towards 21 side of air outlet
Portion 231, the second sealing 232, third sealing 233 are constituted on the axial section of sealing ring is similar to " K " shape.
Specifically, the first sealing 231 is set as the upper right quarter of " K ", it is set as protruding from the ring-type of 23 plane of sealing ring
Structure, section in an axial direction are the triangle with an acute angle, and the acute angle of the triangle is directed toward air outlet 21 and sealing ring
The conjunction direction of central axis, when sealing ring is covered in air outlet 21, the first sealing 231 closely connects with the first extension 214
It touches, forms the first resealing；
Second sealing 232 is set as the right lower quadrant of " K ", is also configured as protruding from the cyclic structure of 23 plane of sealing ring,
Its section in an axial direction is the triangle with an acute angle, and the acute angle of the triangle is directed toward air outlet 21 and far from sealing ring
The conjunction direction of heart axis direction, when sealing ring 23 is covered in air outlet 21, the second sealing 232 and the second extension 215 are tight
Contiguity is touched and is deformed upon, and so that the second sealing 232 is constituted annular surface with the second extension 215 and is contacted, it is close to form the second weight
Envelope；
Third sealing 233 is set to the left part of " K ", and upwardly extends, when sealing ring 23 is covered in air outlet 21,
Third sealing 233 is in close contact with third extension 216, forms third resealing.
It is arranged by the above triple seal, forms closely sealing between valve block 22 and air outlet 21, can play very
Good sealing effect.
One end of drive rod 24 is diametrically fixedly mounted on valve block 22.Drive rod 24 is fixedly connected with axis 27, institute
The top edge that axis 27 is fixedly installed in 212 outer surface of oil smoke channel through bearing 25 is stated, while axis can make rotation fortune on bearing
It is dynamic.The other end of drive rod 24 is connect by pin with reversing bar 29, and reversing bar 29 can impart power to drive rod 24, together
When, linear motion is converted into the rotary motion that drive rod 24 is opened or closed with moving valve plate 22.The reversing bar passes through pin
It is connect with metallic rod 210, the periphery of metallic rod 210 is provided with spring 211.In use, kitchen ventilator conveying flue gas gaseous mixture into
Enter oil smoke channel 21, so that valve block 22 is pushed and be detached from air outlet 21,210 compressed spring of metallic rod moves downward；Kitchen ventilator stops
After work, metallic rod 210 pushes valve block 22 to be covered on air outlet 21 in the case where spring 211 replys force effect.
In order to further enhance the smoke-backflow-proof effect of the utility model kitchen ventilator check (non-return) valve, it is additionally provided on function part 2
Auxillary flue 26, the auxillary flue 26 have the flue face with 21 place level-crossing of air outlet, diameter are provided on the flue face
It is slightly less than the ventilation hole of valve block 22.It flue face can be in angle of 45 degrees with 21 place plane of air outlet.The setting of auxillary flue 26 can
It is opened with effectively preventing the negative pressure in flue collector from attracting valve block 22, prevents the phenomenon that falling cigarette from occurring.
Further, can clamp device be set between valve block 22 and air outlet 21, for reinforcing valve block 22 and going out
The connection in air port 21.The clamp device can be edge of the inner surface far from drive rod 24 of valve block 22 be arranged one or
The multiple magnet of person, correspondingly, oil smoke channel 212 upper inner edge close to the magnet position be arranged one or
Multiple iron plates.When valve block 22 is covered in air outlet 21, one end of the iron plate is fixedly connected on the inner surface in oil smoke channel,
The other end is together with magnet adsorption.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (10)
1. a kind of check valve for flue, which is characterized in that including valve body, the valve body is provided with oil smoke channel, the oil smoke channel
Perforation is provided with air intake vent and air outlet, valve block is provided at the air outlet, the valve block can cover the air outlet；Institute
State valve block to connect by drive rod with the valve body, be provided with spring between the drive rod and the valve body, the valve block with
It is provided with sealing ring between the air outlet.
2. check valve for flue according to claim 1, which is characterized in that the sealing ring is set to the valve block outer,
The air outlet edge is provided with the first extension, the second extension and the third extension of the extension of transition successively, the valve block
First extension is at least covered, the sealing ring is covered in the third extension.
3. check valve for flue according to claim 2, which is characterized in that the sealing ring includes the first sealing, second
Sealing and third sealing, first sealing extend to the air outlet direction respectively with second sealing, point
It Yong Yu not be bonded with first extension and the second extension, the third sealing is bonded with the third extension.
4. check valve for flue according to claim 3, which is characterized in that section is " K " shape, institute to the sealing ring in an axial direction
It states the first sealing and is set as " K " shape right lower quadrant；Second sealing is set as " K " shape upper right quarter, the third sealing
It is set as " K " shape left part.
5. check valve for flue according to claim 3, which is characterized in that be provided with fastening between the valve block and air outlet
Device, for reinforcing the connection between the valve block and the air outlet.
6. check valve for flue according to claim 5, which is characterized in that the clamp device is to be set on the valve block
And/or the magnet on the air outlet.
7. check valve for flue according to claim 1, which is characterized in that be provided with auxillary flue on the outside of the air outlet.
8. check valve for flue according to claim 1, which is characterized in that be provided with ladder-like connection at the air intake vent
Circle.
9. check valve for flue according to claim 1, which is characterized in that the sealing ring is silica gel ring.
10. check valve for flue according to claim 1, which is characterized in that the drive rod is along the valve block diametric(al)
Setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721706516.3U CN207864701U (en) | 2017-12-08 | 2017-12-08 | Check valve for flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721706516.3U CN207864701U (en) | 2017-12-08 | 2017-12-08 | Check valve for flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864701U true CN207864701U (en) | 2018-09-14 |
Family
ID=63468507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721706516.3U Active CN207864701U (en) | 2017-12-08 | 2017-12-08 | Check valve for flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111578340A (en) * | 2020-06-19 | 2020-08-25 | 杭州老板电器股份有限公司 | range hood |
-
2017
- 2017-12-08 CN CN201721706516.3U patent/CN207864701U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111578340A (en) * | 2020-06-19 | 2020-08-25 | 杭州老板电器股份有限公司 | range hood |
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| GR01 | Patent grant |