CN110848780A - Duct type non-return device for preventing backflow of oil smoke - Google Patents
Duct type non-return device for preventing backflow of oil smoke Download PDFInfo
- Publication number
- CN110848780A CN110848780A CN201911267365.XA CN201911267365A CN110848780A CN 110848780 A CN110848780 A CN 110848780A CN 201911267365 A CN201911267365 A CN 201911267365A CN 110848780 A CN110848780 A CN 110848780A
- Authority
- CN
- China
- Prior art keywords
- duct
- oil smoke
- base
- return baffle
- baffle plate
- 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.)
- Pending
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 6
- 238000010030 laminating Methods 0.000 claims 1
- 238000005728 strengthening Methods 0.000 claims 1
- 238000000746 purification Methods 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 239000003517 fume Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J11/00—Devices for conducting smoke or fumes, e.g. flues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a duct type non-return device for preventing oil smoke from flowing backwards, which belongs to the technical field of oil smoke purification equipment, and structurally comprises a base, a duct, a wind channel, a supporting seat and a non-return baffle plate which are connected, wherein the base is fixed on the outer wall of a flue through a bolt, a rotary lug of the non-return baffle plate is connected with a lug nest of the supporting seat, an exhaust pipe of a range hood is connected onto the outer wall of the base, the non-return baffle plate can be effectively prevented from being scratched by airflow in the flue through a duct structure, the non-return baffle plate is provided with a # -shaped reinforcing rib, the deformation of the non-return baffle plate can be effectively prevented, a cover opening end face and the bottom surface of the duct form an inclined included angle, the non-return baffle plate can be tightly attached to a cover opening end face by utilizing the self weight, and the blowing of the non-return baffle plate.
Description
Technical Field
The invention belongs to the technical field of oil fume purification equipment, relates to an oil fume non-return device, and particularly relates to a duct type non-return device for preventing oil fume from flowing backwards.
Background
The flue in the commodity house kitchen all is public flue today, follows a building to the big family of roof and shares a smoke exhaust pipe, and the original intention of this kind of design is to prevent that the resident family from privately punching on the facade in house, seriously influences the security in house and destroys the pleasing to the eye of the facade outside the house, but in the in-service use, awkward and annoying thing also comes thereupon, that is the mixed oil smoke in the public flue pours into the resident family home in, and very many residents are embarrassed, cause the reason of this kind of result to lie in: (1) the airflow in the common flue is disturbed to cause the non-return baffle to move, so that the non-return baffle is not tight in cover, and the oil smoke is poured backwards; (2) the non-return baffle plate is deformed due to the structure and other reasons, so that the non-return baffle plate cover is not tight, and the oil smoke backflow is formed; (3) the reason of the angle of the non-return baffle plate cover causes the non-return baffle plate cover not to be tight, and the oil smoke flows backwards; (4) there is no sealing device between the non-return baffle and the cover opening, so that the non-return baffle is not tight and forms the oil smoke backflow. Therefore, the check device structure in the existing exhaust system of the range hood needs to be improved.
Disclosure of Invention
The invention aims to provide a duct type check device for preventing backflow of oil smoke in an exhaust system of a range hood, aiming at overcoming the defects of the existing check device for the exhaust system of the range hood, which can effectively prevent deformation of a check baffle, increase the sealing performance of the baffle and a cover opening, has simple structure and low cost, and can effectively solve the problem that mixed oil smoke in a public flue flows back into households.
The technical scheme of the invention is as follows: a duct type check device for preventing oil smoke from flowing backwards comprises a base; the method is characterized in that: one side of base is equipped with the duct, the bottom surface of duct is equipped with the wind channel that runs through the base, the wind channel front end is equipped with the lid mouth terminal surface, lid mouth terminal surface protrusion sets up on the bottom surface of duct, the rear end in wind channel is equipped with the connection outer wall, it sets up to connect the outer wall protrusion on the back of base, the lid mouth terminal surface of wind channel front end with the bottom surface of duct forms the slope contained angle, be equipped with the seal groove on the lid mouth terminal surface, be equipped with the sealing washer in the seal groove, be equipped with the supporting seat on the duct bottom surface of wind channel top, be equipped with the ear nest in the supporting seat, be equipped with the non return baffle of taking the commentaries on classics ear in the ear nest, the front of non return baffle with the lid mouth terminal surface forms the contact of.
The left side and the right side of the top of the non-return baffle are respectively provided with a rotary lug, the rotary lugs are inserted into lug sockets, and the non-return baffle rotates through the supporting seat.
The protruding height of the front end of the air duct is lower than the depth of the duct.
The four corners of base are equipped with 4 bolt via holes, and the base passes through bolt via hole and flue outer wall connection fixed.
The cover opening end face and the culvert bottom face form an inclined included angle, and the included angle is 16-20 degrees.
The reinforcing rib is arranged on the front surface of the non-return baffle in a shape like a Chinese character 'jing'.
The duct and the air duct are both circular and are coaxially arranged.
The invention has the beneficial effects that: the invention provides a duct type non-return device for preventing oil smoke from flowing backwards, which structurally comprises a base, a duct, an air duct, a supporting seat and a non-return baffle plate which are connected, wherein the base is fixed on the outer wall of a flue through a bolt, rotating lugs of the non-return baffle plate are connected with lug sockets of the supporting seat, an exhaust pipe of a range hood is connected to the outer wall of the base, the non-return baffle plate can be effectively prevented from being bent by air flow in the flue through a duct structure, the non-return baffle plate is provided with a # -shaped reinforcing rib, the deformation of the non-return baffle plate can be effectively prevented, the end surface of a cover opening and the bottom surface of the duct form an inclined included angle, the non-return baffle plate can be tightly attached to the end surface of a cover opening by utilizing the self weight, and the non-return baffle plate can be favorably blown up.
Drawings
Fig. 1 is a schematic top view of the assembled structure of the present invention.
FIG. 2 is a schematic view of the main sectional structure of the present invention.
FIG. 3 is a schematic top view of the base of the present invention.
Fig. 4 is a schematic cross-sectional view of the base of the present invention.
FIG. 5 is a schematic view of the check damper of the present invention.
In the figure: the anti-blocking device comprises a base 1, a non-return baffle 2, a duct 3, a bolt through hole 4, a reinforcing rib 5, a supporting seat 6, an air duct 7, a connecting outer wall 8, a sealing ring 9, a sealing groove 10, a cover opening end face 11, an ear pit 12 and a rotary ear 13.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-5, a duct-type non-return device for preventing oil smoke from flowing backward, a duct 3 is arranged on one side of a base 1, an air duct 7 penetrating through the base 1 is arranged on the bottom surface of the duct 3, a cover end surface 11 is arranged at the front end of the air duct 7, the cover end surface 11 protrudes out of the bottom surface of the duct 3, a connecting outer wall 8 is arranged at the rear end of the air duct 7, the connecting outer wall 8 protrudes out of the back surface of the base 1, an inclined included angle is formed between the cover end surface 11 at the front end of the air duct 7 and the bottom surface of the duct 3, a sealing groove 10 is arranged on the cover end surface 11, a sealing ring 10 is arranged in the sealing groove 10, a supporting seat 6 is arranged on the bottom surface of the duct 3 above the air duct 7, an ear pit 12 is arranged in the supporting seat 6, a non-return baffle 2 with a rotary lug 13 is arranged in the ear pit.
As shown in fig. 1-5, a duct type check device for preventing oil smoke from flowing backwards, wherein the left side and the right side of the top of a check baffle 2 are respectively provided with a rotating lug 13, the rotating lugs 13 are inserted into lug sockets 12, and the check baffle 2 rotates through a supporting seat 6; the protruding height of the front end of the air duct 7 is lower than the depth of the duct 3; four corners of the base 1 are provided with 4 bolt through holes 4, and the base 1 is fixedly connected with the outer wall of the flue through the bolt through holes 4; the cover opening end surface 11 and the bottom surface of the duct 3 form an inclined included angle, and the included angle is 16-20 degrees; the reinforcing ribs 5 are arranged on the front surface of the non-return baffle 2 in a # -shaped manner; duct 3 and wind channel 7 are circular, and duct 3 sets up with wind channel 7 is coaxial.
As shown in fig. 1-5, the usage principle of the bypass type check device for preventing oil smoke from flowing backwards is as follows: when the device is installed, glue is coated in a cover opening sealing groove 10 in a base 1, a sealing ring is arranged in the sealing groove 10, two rotating lugs 13 of a check baffle plate 2 are arranged in lug holes 12 of a supporting seat, bolts pass through 4 fixing bolt through holes 4 on the base 1, the base 1 is fixed on the outer wall of a flue, and an exhaust pipe of a range hood is connected to a base connecting outer wall 8. due to the adoption of the ducted design, the device can effectively prevent airflow in the flue from disturbing the check baffle plate 2, the check baffle plate 2 is provided with a # -shaped reinforcing rib 5 which can effectively prevent the check baffle plate 2 from deforming, the cover opening 11 is provided with the sealing ring, the problem of non-sealing can be effectively solved, the cover opening 11 and the vertical direction of the axis of an air duct have an included angle of 16-20 degrees, the included angle can ensure that the check baffle plate 2 is tightly attached to the sealing ring on the cover opening by utilizing the self weight and can also ensure that oil, the invention has simple structure, practicality, reliability and low cost, and effectively solves the problem that the mixed oil smoke in the public flue flows back into households.
Claims (7)
1. A duct type check device for preventing oil smoke from flowing backwards comprises a base (1); the method is characterized in that: a duct (3) is arranged on one side of the base (1), an air duct (7) penetrating through the base (1) is arranged on the bottom surface of the duct (3), a cover end surface (11) is arranged at the front end of the air duct (7), the cover end surface (11) is convexly arranged on the bottom surface of the duct (3), a connecting outer wall (8) is arranged at the rear end of the air duct (7), the connecting outer wall (8) is convexly arranged on the back surface of the base (1), the cover end surface (11) at the front end of the air duct (7) and the bottom surface of the duct (3) form an inclined included angle, a sealing groove (10) is arranged on the cover end surface (11), a sealing ring (10) is arranged in the sealing groove (10), a supporting seat (6) is arranged on the bottom surface of the duct (3) above the air duct (7), an ear pit (12) is arranged in the supporting seat (6), and a check baffle (2) with check lugs (13) is arranged in the ear pit (, the front of non return baffle (2) with lid mouth terminal surface (11) form the contact of closely laminating, the back of non return baffle (2) is equipped with strengthening rib (5).
2. The ducted oil smoke backflow prevention check device according to claim 1, characterized in that: the left side and the right side of the top of the non-return baffle (2) are respectively provided with a rotating lug (13), the rotating lugs (13) are inserted into the lug sockets (12), and the non-return baffle (2) forms rotation through the supporting seat (6).
3. The ducted oil smoke backflow prevention check device according to claim 1, characterized in that: the protruding height of the front end of the air duct (7) is lower than the depth of the duct (3).
4. The ducted oil smoke backflow prevention check device according to claim 1, characterized in that: the four corners of base (1) are equipped with 4 bolt via holes (4), and base (1) is connected fixedly through bolt via hole (4) and flue outer wall.
5. The ducted oil smoke backflow prevention check device according to claim 1, characterized in that: the cover opening end surface (11) and the bottom surface of the duct (3) form an inclined included angle, and the included angle is 16-20 degrees.
6. The ducted oil smoke backflow prevention check device according to claim 1, characterized in that: the reinforcing ribs (5) are arranged on the front surface of the non-return baffle (2) in a shape like a Chinese character 'jing'.
7. The ducted oil smoke backflow prevention check device according to claim 1, characterized in that: the duct (3) and the air duct (7) are both circular, and the duct (3) and the air duct (7) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911267365.XA CN110848780A (en) | 2019-12-11 | 2019-12-11 | Duct type non-return device for preventing backflow of oil smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911267365.XA CN110848780A (en) | 2019-12-11 | 2019-12-11 | Duct type non-return device for preventing backflow of oil smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110848780A true CN110848780A (en) | 2020-02-28 |
Family
ID=69608775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911267365.XA Pending CN110848780A (en) | 2019-12-11 | 2019-12-11 | Duct type non-return device for preventing backflow of oil smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110848780A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050916U (en) * | 1989-01-13 | 1990-01-10 | 王光勋 | One-way valve for lampblack exhausting device |
| CN2743743Y (en) * | 2004-10-28 | 2005-11-30 | 张晓伟 | Automatic gas exhausting valve capable of preventing smoke running and returning |
| CN201416673Y (en) * | 2009-05-25 | 2010-03-03 | 陈彬 | Check valve of range hood |
| CN206159589U (en) * | 2016-10-26 | 2017-05-10 | 高建华 | Fire -proof check valve |
| CN206816880U (en) * | 2017-03-20 | 2017-12-29 | 丁华军 | A kind of oil-smoke-exhausting fireproof check valve with magnetic envelope |
| CN211084180U (en) * | 2019-12-11 | 2020-07-24 | 扬州大学 | Duct type non-return device for preventing backflow of oil smoke |
-
2019
- 2019-12-11 CN CN201911267365.XA patent/CN110848780A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050916U (en) * | 1989-01-13 | 1990-01-10 | 王光勋 | One-way valve for lampblack exhausting device |
| CN2743743Y (en) * | 2004-10-28 | 2005-11-30 | 张晓伟 | Automatic gas exhausting valve capable of preventing smoke running and returning |
| CN201416673Y (en) * | 2009-05-25 | 2010-03-03 | 陈彬 | Check valve of range hood |
| CN206159589U (en) * | 2016-10-26 | 2017-05-10 | 高建华 | Fire -proof check valve |
| CN206816880U (en) * | 2017-03-20 | 2017-12-29 | 丁华军 | A kind of oil-smoke-exhausting fireproof check valve with magnetic envelope |
| CN211084180U (en) * | 2019-12-11 | 2020-07-24 | 扬州大学 | Duct type non-return device for preventing backflow of oil smoke |
Non-Patent Citations (1)
| Title |
|---|
| 刘后启等: "水泥厂大气污染物排放控制技术", 31 August 2007, 中国建材工业出版社, pages: 246 - 248 * |
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