CN102353083A - Range hood air outlet pipe capable of preventing smoke from returning - Google Patents
Range hood air outlet pipe capable of preventing smoke from returning Download PDFInfo
- Publication number
- CN102353083A CN102353083A CN2011102365726A CN201110236572A CN102353083A CN 102353083 A CN102353083 A CN 102353083A CN 2011102365726 A CN2011102365726 A CN 2011102365726A CN 201110236572 A CN201110236572 A CN 201110236572A CN 102353083 A CN102353083 A CN 102353083A
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- valve block
- edge
- valve plate
- wind pipe
- lampblack absorber
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Abstract
The invention relates to a range hood air outlet pipe capable of preventing smoke from returning, which comprises an air outlet pipeline (1) and a valve plate (2), wherein the valve plate (2) is rotatably arranged in the air outlet pipeline; and an outlet of the air outlet pipeline can be sheltered or opened by overturning the valve plate. The range hood air outlet pipe is characterized in that: the edge of the valve plate (2) has electromagnetism; an electromagnet (4) which corresponds to the electromagnetic part at the edge of the valve plate (2) is arranged on the inner wall of the air outlet pipeline (1); and the end of the electromagnet (4), which faces to the edge of the valve plate, can generate a magnetic pole which has same polarity with the magnetic pole of the electromagnetic part at the edge of the valve plate (2); and thus magnetic forces which are mutually repulsive are generated between the electromagnet and the edge of the valve plate. According to the invention, the valve plate can be assisted to be opened or closed through mutual repulsion or attraction between the electromagnet and the electromagnetic part at the edge of the valve plate, and the valve plate can be easily opened under the electromagnetic force even if the valve plate is adhered in the pipeline by greasy dirt; and therefore the situation that the valve plate cannot be normally opened when a range hood works is effectively avoided.
Description
Technical field
The present invention relates to a kind of lampblack absorber discharge pipe of anti-down cigarette.
Background technology
In order to prevent return of smoke and smell, generally all be check valve to be installed at the discharge pipe place of smoke exhaust.Check valve commonly used at present has two kinds; A kind of is the check valve of monolithic valve board structure, is the lampblack absorber discharge pipe of a kind of anti-down cigarette the Chinese utility model patent " anti-backflow smoke soft cap valve for fume exhauster for kitchen " of ZL200920008945.2 (notification number is CN201391923Y) has disclosed like a patent No.; Another kind is the check valve of bivalve plate structure, is the lampblack absorber discharge pipe of a kind of anti-down cigarette of structure the Chinese utility model patent " novel anti down flow of smoke device " of ZL200420032141.3 (notification number is CN2715006Y) has disclosed like a patent No..
Yet the structure of these two kinds of check valves, the inside and outside pressure differential of valve is opened when only relying on lampblack absorber work mostly, when lampblack absorber quits work; Only rely on the gravity of valve plate self to close again; Valve plate periphery and discharge pipe can not be close to, and cause poor sealing, and flue gas and cold air are prone to pour in down a chimney.In addition when lampblack absorber is long-term use after, greasy dirt can be bonded on valve plate and the discharge pipe, thus it is difficult to cause valve plate to open, and can't guarantee that lampblack absorber normally discharges fume.
Summary of the invention
Technical problem to be solved by this invention is the lampblack absorber discharge pipe that a kind of anti-down cigarette is provided to above-mentioned prior art present situation, and this discharge pipe can prevent effectively that the situation that valve plate can not normally be opened when lampblack absorber is worked from taking place.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of lampblack absorber discharge pipe of anti-down cigarette, and include wind pipe, and rotate the valve block that is arranged in the wind pipe, the upset of this valve block can be covered the outlet of wind pipe or open; It is characterized in that: the edge of said valve block has magnetic; Said wind pipe inwall is provided with the corresponding electromagnet of magnetic part with said valve block edge; And this electromagnet can produce the magnetic pole with the magnetic pole same sex of the magnetic part at valve block edge in the face of that end at said valve block edge, thereby makes the magnetic force that produces mutual repulsion between the edge of electromagnet and valve block.
The magnetic at above-mentioned valve block edge is produced by the permanent magnet on the lower surface at the edge that is fixed on said valve block.Certainly also valve block adopt weak magnetic material to process, make the edge of valve block itself just be magnetic.
Above-mentioned valve block has two, and the middle part in the said wind pipe is fixed with the connecting axle that is disposed radially, and the inside edge of said two valve blocks all is connected on the said connecting axle and can overturns.Adopt two valve blocks to make that the weight of each valve block is lighter, valve block more is prone to be unlocked, and it is a kind of version that valve block adopted, and valve block also can have only a slice certainly.
Middle part in the above-mentioned wind pipe removably is fixed with the crossbeam that is disposed radially, and said connecting axle is installed on this crossbeam.This structure is opened earlier valve block to be rotated and is installed on the crossbeam, and then crossbeam is fixed in the wind pipe, avoids valve block will directly be installed in wind pipe, so this structure ease of assembly.
The two ends of above-mentioned crossbeam have to the elasticity card base that extends below, and said wind pipe inwall has two protuberances, have the hole clipping that vertically runs through on each protuberance, and said elasticity card base is buckled in the said hole clipping.It is a kind of crossbeam and the wind pipe mode that directly removably connects; Only need in the time of fixedly the elasticity card base is aimed at hole clipping; Pressing down crossbeam then just opens crossbeam is fixed in the wind pipe; Inwardly only need during dismounting extruding elasticity card base carry on then crossbeam just can, so this syndeton is convenient to dismantle crossbeam.
The inside edge of above-mentioned each valve block has three insert edges that extend back and be provided with at interval; Each insert edge sidepiece has the lug of upwards digging; Have perforation on the lug, said connecting axle passes the perforation on each valve block successively, and simultaneously the insert edge on the valve block is on another valve block between adjacent two insert edges.Two valve blocks are crossed the cooperation that is in contact with one another of insert edge, prevent that effectively two valve blocks from relatively moving, and the connecting axle activity is plugged in the perforation, guarantee that valve block rotates relative to connecting axle flexibly.
Above-mentioned wind pipe inwall has the retaining wall of convex, and under the state that valve block covers the outlet of wind pipe, the periphery of said valve block bottom surface and said retaining wall are fitted.Periphery and said retaining wall through the valve block bottom surface are fitted, and the outlet of the better airtight wind pipe of valve block ability is more effectively to prevent down cigarette and taint of odour.
The inwall of above-mentioned wind pipe also is provided with cavity, and said electromagnet is installed in this cavity.This cavity is that electromagnet provides an installation position, and electromagnet is had position-limiting action, and electromagnet also can directly be fixed on the wind pipe inwall certainly.
The upper surface of above-mentioned retaining wall by outer from downward-sloping.Because the upper surface of retaining wall is the inclined-plane, thus the easy landing of retaining wall upper track greasy dirt, be difficult for gathering greasy dirt on the retaining wall, can prevent to a certain extent that valve block is bonded.
Compared with prior art; The invention has the advantages that: have magnetic on the lower surface at the edge of valve block; The wind pipe inwall is provided with and the corresponding electromagnet of permanent magnetism face; Mutual repulsion of magnetic part generation or attraction by electromagnet and valve block edge assist valve block to open or close; Promptly when valve block is bonded on the pipeline because of greasy dirt; Can be because of electromagnet and the mutual magnetic force that repels of valve block edge generation; And auxiliary valve block is opened; Prevent that effectively the situation that valve plate can not normally be opened when lampblack absorber is worked from taking place; Simultaneously also make valve block can cover the genuine outlet of discharge pipe better, return of smoke and smell when preventing effectively that lampblack absorber from quitting work.
Description of drawings
Fig. 1 is the perspective view (valve block closed condition) of the embodiment of the invention;
Fig. 2 is the structure cutaway view (valve block closed condition) of the embodiment of the invention;
Fig. 3 is the perspective view (valve block opening) of the embodiment of the invention;
Fig. 4 is the structure cutaway view (valve block opening) of the embodiment of the invention;
Fig. 5 is the perspective view of wind pipe in the embodiment of the invention;
The installation perspective view that Fig. 6 installs for embodiment of the invention middle valve plate;
Fig. 7 is the perspective view of embodiment of the invention middle valve plate.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Shown in Fig. 1～7, be the preferred embodiment in road of the present invention.
A kind of lampblack absorber discharge pipe of anti-down cigarette includes wind pipe 1, and rotates the valve block 2 that is arranged in the wind pipe 1, and the upset of this valve block 2 can be covered the outlet of wind pipe 1 or open.Wind pipe 1 inwall has the retaining wall 8 of convex, the upper surface 81 of retaining wall 8 by outer from downward-sloping, under the state that valve block 2 covers the outlet of wind pipe 1, the periphery of valve block 2 bottom surfaces and retaining wall 8 applyings.
Valve block 2 has two and semicircular in shape; Middle part in the wind pipe 1 is fixed with the connecting axle 5 that is disposed radially; Middle part in the wind pipe 1 removably is fixed with the crossbeam 6 that is disposed radially; Connecting axle 5 is installed on this crossbeam 6, and the inside edge of two valve blocks 2 all is connected on the connecting axle 5 and can overturns.
Crossbeam 6 adopts following structure to be connected with wind pipe 1: the two ends of crossbeam 6 have to the elasticity card base 61 that extends below, and wind pipe 1 inwall has two protuberances 7, have the hole clipping 71 that vertically runs through on each protuberance 7, and elasticity card base 61 is buckled in the hole clipping 71.
Adopt following structure to connect between valve block 2 and the connecting axle 5: the inside edge of each valve block 2 has three insert edges 21 that extend back and be provided with at interval; Each insert edge 21 sidepiece has the lug of upwards digging 22; Have perforation 23 on the lug 22; Connecting axle 5 passes the perforation 23 on each valve block 2 successively, and simultaneously the insert edge 21 on the valve block 2 is on another valve block 2 between adjacent two insert edges 21.
Be fixed with permanent magnet 3 on the lower surface at the edge of each valve block 2; Wind pipe 1 inwall is provided with and permanent magnet 3 corresponding electromagnet 4, and electromagnet 4 is the sucked type electromagnet, on market, can directly buy; The inwall of wind pipe 1 also is provided with cavity 9, and electromagnet 4 is installed in this cavity 9; When wind pipe 1 beginning air draft, the coil of electromagnet 4 leads to forward current, and makes the identical and mutual repulsion of the magnetic pole of permanent magnet 3 and electromagnet 4 respective face, thus assisting in opening valve block 2; When wind pipe 1 stops air draft; The coil of electromagnet 4 can also lead to reversing the current; Permanent magnet 3 is attracted each other with the magnetic pole of electromagnet 4 respective face mutually on the contrary, thereby valve block 2 is closed better, the situation that is not closed completely that possibly exist when avoiding valve block to only depend on gravity to close.
Energising opportunity and control mode as for electromagnet 4 can have the multiple choices mode.Such as the special formula of pressing button is set,, be deenergization and unclamp putting energized on time.Also can adopt control mode with the lampblack absorber interlock; As: when lampblack absorber is started shooting; By the programme-control drive circuit in the control chip; Export to the forward current of the coil certain hour of electromagnet 4; Electromagnet 4 and permanent magnet 3 is because relative generation repulsion at the same level; To assist valve block 2 to push open, and, under the effect of electromagnetic force, also can easily open even valve block 2 is bonded in the wind pipe 1 because of greasy dirt; After wait is closed after lampblack absorber is closed or pressed delay switch; By control chip internal program control drive circuit; The coil of exporting to electromagnet 4 is a reversing the current; Electromagnet 4 and permanent magnet 3 is because the relative generation suction of different level; To assist non-return valve block 2 closures, valve block 2 can be better with the port closing of wind pipe 1.
Claims (9)
1. the lampblack absorber discharge pipe of an anti-down cigarette includes wind pipe (1), and rotates the valve block (2) that is arranged in the wind pipe (1), and the upset of this valve block (2) can be covered the outlet of wind pipe (1) or open; It is characterized in that: the edge of said valve block (2) has magnetic; Said wind pipe (1) inwall is provided with the corresponding electromagnet of magnetic part (4) with said valve block (2) edge; And this electromagnet (4) can produce the magnetic pole with the magnetic pole same sex of the magnetic part at valve block (2) edge in the face of that end at said valve block edge, thereby makes the magnetic force of the mutual repulsion of generation between the edge of electromagnet (4) and valve block (2).
2. the lampblack absorber discharge pipe of anti-down cigarette according to claim 1, it is characterized in that: the magnetic at said valve block edge is produced by the permanent magnet (3) on the lower surface that is fixed on said valve block (2) edge.
3. the lampblack absorber discharge pipe of anti-down cigarette according to claim 2; It is characterized in that: said valve block (2) has two; Middle part in the said wind pipe (1) is fixed with the connecting axle (5) that is disposed radially, and the inside edge of said two valve blocks (2) all is connected said connecting axle (5) and goes up also and can overturn.
4. the lampblack absorber discharge pipe of anti-down cigarette according to claim 3 is characterized in that: the middle part in the said wind pipe (1) removably is fixed with the crossbeam (6) that is disposed radially, and said connecting axle (5) is installed on this crossbeam (6).
5. the lampblack absorber discharge pipe of anti-down cigarette according to claim 4; It is characterized in that: the two ends of said crossbeam (6) have to the elasticity card base (61) that extends below; Said wind pipe (1) inwall has two protuberances (7); Have the hole clipping (71) that vertically runs through on each protuberance (7), said elasticity card base (61) is buckled in the said hole clipping (71).
6. the lampblack absorber discharge pipe of anti-down cigarette according to claim 3; It is characterized in that: the inside edge of said each valve block (2) has three insert edges (21) that extend back and be provided with at interval; Each insert edge (21) sidepiece has the lug of upwards digging (22); Have perforation (23) on the lug (22); Said connecting axle (5) passes the perforation (23) on each valve block (2) successively, and the insert edge (21) on the valve block (2) is positioned between last adjacent two insert edges of another valve block (2) (21) simultaneously.
7. according to the lampblack absorber discharge pipe of the described anti-down cigarette of arbitrary claim in the claim 1～6; It is characterized in that: said wind pipe (1) inwall has the retaining wall (8) of convex; Under the state that valve block (2) covers the outlet of wind pipe (1), the periphery of said valve block (2) bottom surface and said retaining wall (8) are fitted.
8. the lampblack absorber discharge pipe of anti-down cigarette according to claim 7, it is characterized in that: the inwall of said wind pipe (1) also is provided with cavity (9), and said electromagnet (4) is installed in this cavity (9).
9. the lampblack absorber discharge pipe of anti-down cigarette according to claim 7 is characterized in that: the upper surface (81) of said retaining wall (8) by outer from downward-sloping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102365726A CN102353083A (en) | 2011-08-15 | 2011-08-15 | Range hood air outlet pipe capable of preventing smoke from returning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102365726A CN102353083A (en) | 2011-08-15 | 2011-08-15 | Range hood air outlet pipe capable of preventing smoke from returning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102353083A true CN102353083A (en) | 2012-02-15 |
Family
ID=45576706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102365726A Pending CN102353083A (en) | 2011-08-15 | 2011-08-15 | Range hood air outlet pipe capable of preventing smoke from returning |
Country Status (1)
| Country | Link |
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| CN (1) | CN102353083A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927600A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet housing of range hood |
| CN102927601A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet device for range hoods |
| CN103574722A (en) * | 2013-11-05 | 2014-02-12 | 中山市超人电器有限公司 | Electromagnetic-sucking sealed type smoke-inversion-preventing extractor hood |
| CN105200373A (en) * | 2015-09-14 | 2015-12-30 | 京东方科技集团股份有限公司 | Filling device and filling method for evaporation system of organic light emitting diode (OLED) |
| CN105673892A (en) * | 2016-01-28 | 2016-06-15 | 顾钰锋 | Oily fume self-cleaning check valve |
| CN109519988A (en) * | 2017-09-18 | 2019-03-26 | 宁波方太厨具有限公司 | A kind of automatically cleaning range hood and its control method |
| CN111322647A (en) * | 2018-12-17 | 2020-06-23 | 宁波方太厨具有限公司 | Flue smoke exhaust system and control method thereof |
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| ES2024749A6 (en) * | 1990-03-07 | 1992-03-01 | Corral Guerrero Manuel | Improvements to systems for extracting smoke (fumes) in domestic and industrial hoods |
| US5246032A (en) * | 1992-02-10 | 1993-09-21 | Muddiman Robert W | Fluid check valve |
| CN1259641A (en) * | 1998-11-05 | 2000-07-12 | 富士工业株式会社 | Joint of exhaust pipe of cooking fume remover |
| DE10245403B3 (en) * | 2002-09-28 | 2004-04-22 | Miele & Cie. Kg | Back draught flap for arranging in an exhaust duct, especially of an extractor hood, comprises a flap part rotating about an axis and a damping device designed as a spring device |
| CN200975524Y (en) * | 2006-11-16 | 2007-11-14 | 苏州纽威阀门有限公司 | Double piece opposite clamping back valve |
| CN201363461Y (en) * | 2009-03-23 | 2009-12-16 | 何岱东 | Electromagnetic flue check valve |
| CN202253863U (en) * | 2011-08-15 | 2012-05-30 | 宁波方太厨具有限公司 | Returning-smoke resisting air exhausting pipe of range hood |
| CN102644953A (en) * | 2011-02-22 | 2012-08-22 | 浙江帅康电气股份有限公司 | Taste-return prevention range hood |
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2011
- 2011-08-15 CN CN2011102365726A patent/CN102353083A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2024749A6 (en) * | 1990-03-07 | 1992-03-01 | Corral Guerrero Manuel | Improvements to systems for extracting smoke (fumes) in domestic and industrial hoods |
| US5246032A (en) * | 1992-02-10 | 1993-09-21 | Muddiman Robert W | Fluid check valve |
| CN1259641A (en) * | 1998-11-05 | 2000-07-12 | 富士工业株式会社 | Joint of exhaust pipe of cooking fume remover |
| DE10245403B3 (en) * | 2002-09-28 | 2004-04-22 | Miele & Cie. Kg | Back draught flap for arranging in an exhaust duct, especially of an extractor hood, comprises a flap part rotating about an axis and a damping device designed as a spring device |
| CN200975524Y (en) * | 2006-11-16 | 2007-11-14 | 苏州纽威阀门有限公司 | Double piece opposite clamping back valve |
| CN201363461Y (en) * | 2009-03-23 | 2009-12-16 | 何岱东 | Electromagnetic flue check valve |
| CN102644953A (en) * | 2011-02-22 | 2012-08-22 | 浙江帅康电气股份有限公司 | Taste-return prevention range hood |
| CN202253863U (en) * | 2011-08-15 | 2012-05-30 | 宁波方太厨具有限公司 | Returning-smoke resisting air exhausting pipe of range hood |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927600A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet housing of range hood |
| CN102927601A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet device for range hoods |
| CN102927601B (en) * | 2012-10-30 | 2015-03-11 | 宁波方太厨具有限公司 | Air outlet device for range hoods |
| CN102927600B (en) * | 2012-10-30 | 2015-04-15 | 宁波方太厨具有限公司 | Air outlet housing of range hood |
| CN103574722A (en) * | 2013-11-05 | 2014-02-12 | 中山市超人电器有限公司 | Electromagnetic-sucking sealed type smoke-inversion-preventing extractor hood |
| CN105200373A (en) * | 2015-09-14 | 2015-12-30 | 京东方科技集团股份有限公司 | Filling device and filling method for evaporation system of organic light emitting diode (OLED) |
| US10276835B2 (en) | 2015-09-14 | 2019-04-30 | Boe Technology Group Co., Ltd. | Filling apparatus used in an evaporator system and filling method |
| CN105673892A (en) * | 2016-01-28 | 2016-06-15 | 顾钰锋 | Oily fume self-cleaning check valve |
| CN105673892B (en) * | 2016-01-28 | 2018-01-09 | 沈阳鲁博厨业有限公司 | Oil smoke self-cleaning check-valves |
| CN109519988A (en) * | 2017-09-18 | 2019-03-26 | 宁波方太厨具有限公司 | A kind of automatically cleaning range hood and its control method |
| CN111322647A (en) * | 2018-12-17 | 2020-06-23 | 宁波方太厨具有限公司 | Flue smoke exhaust system and control method thereof |
| CN111322647B (en) * | 2018-12-17 | 2022-03-18 | 宁波方太厨具有限公司 | Flue smoke exhaust system and control method thereof |
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Application publication date: 20120215 |