CN102252359A - Air discharging cover for range hood - Google Patents
Air discharging cover for range hood Download PDFInfo
- Publication number
- CN102252359A CN102252359A CN2011102244577A CN201110224457A CN102252359A CN 102252359 A CN102252359 A CN 102252359A CN 2011102244577 A CN2011102244577 A CN 2011102244577A CN 201110224457 A CN201110224457 A CN 201110224457A CN 102252359 A CN102252359 A CN 102252359A
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- return
- connecting rod
- check
- blade
- outlet housing
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Abstract
The invention discloses an air discharging cover for a range hood. The air discharging cover comprises a cover body and a check valve plate assembly arranged inside the cover body, wherein a fixing rod is arranged inside the cover body, a fixing hole is arranged in the middle of the fixing rod, the lower surface of the check valve plate assembly is connected with an anti-sticking connecting rod assembly comprising a positioning shaft and double blade connecting rod arms capable of rotating relative to the positioning shaft, and the upper end of the positioning shaft is fixed inside the fixing hole. The air discharging cover disclosed by the invention is not only anti-sticking, but can also prevent smoke from returning, thus guaranteeing normal operation of the range hood.
Description
Technical field
The present invention relates to a kind of outlet housing that is used for lampblack absorber, especially a kind ofly can prevent down cigarette and antiseized lampblack absorber outlet housing.
Background technology
Each kitchen, family mist extractor outlet of building resident all is a discharge flue that is communicated with up/down perforation now, in order to prevent return of smoke and smell, generally all is at the outlet of smoke exhaust check valve to be installed.
Check valve commonly used at present, a kind of is the monolithic valve board structure, another kind is the bivalve plate structure, 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 relies on the gravity of valve plate self to close again.After the long-term use of lampblack absorber, greasy dirt can be bonded on the valve plate, thereby causes valve plate to open difficulty, can't guarantee the lampblack absorber operate as normal.Developed and drive unit is set on valve has guaranteed that valve plate normally opens and closes, yet the drive unit that uses mostly is electronic at present, not only need the extra energy but also owing to be accessory drive independently, cause the work of the switching of valve plate and lampblack absorber asynchronous easily, can not guarantee the lampblack absorber operate as normal.
In addition, above-mentioned two kinds of valve board structures also exist certain problem.The monolithic valve board structure, a hinged monolithic valve plate on the seal of valve seat, monolithic valve plate when lampblack absorber is not worked on the seal is closed, thereby stoped converse oil smoke or smell in the common flue, yet, use this monolithic valve board structure to have following shortcoming: when lampblack absorber work valve plate Unscrew, valve plate can not be opened fully, and air draft causes resistance to lampblack absorber; When flue negative pressure was big, valve plate was closed slowly, fits badly, and influences sealing effectiveness.
The bivalve plate structure, by the common shaft of winding in the middle of outlet housing or different rotating shaft rotations, open or close check (non-return) valve, yet use this bivalve plate structure, two middle connecting portions of valve plate can't be accomplished driving fit completely, and there is the slit in the centre, valve plate particularly commonly used at present generally adopts plastics to make, when distortion was big, the slit was bigger, can't prevent down cigarette effectively.
Summary of the invention
Technical problem to be solved by this invention provides a kind of outlet housing that is used for lampblack absorber, drives the mechanical actuation device that valve block opens and closes by being provided with, thereby guarantees the operate as normal of lampblack absorber.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of outlet housing that is used for lampblack absorber, comprise cover body and be arranged on the interior check (non-return) valve chip module of described cover body, it is characterized in that, be provided with fixed bar in the described cover body, the centre of described fixed bar is provided with fixing hole, described check (non-return) valve chip module lower surface is connected with and is used for antiseized link assembly, described link assembly comprise locating shaft with can relative described locating shaft rotating blades connecting rod both arms, the upper end of described locating shaft is fixed in the described fixing hole.
Described blade connecting rod both arms comprise connecting rod and at the pitman arm at described connecting rod two ends, described pitman arm is connected the lower surface of described check (non-return) valve blade, the two ends of the alignment pin of the alignment pin connecting rod end of fixedlying connected with described connecting rod are located in the locating hole of described locating shaft lower end, described alignment pin is provided with the blade connecting rod, the other end of described blade connecting rod is fixed with blade, described blade and the angled placement of described locating shaft.Can avoid long-term use of lampblack absorber and cause being stained with on the check (non-return) valve blade hidden danger that greasy dirt is opened difficulty, guarantee the operate as normal of lampblack absorber.
Described blade becomes miter angle to place with described locating shaft, so that can be started when inside and outside formation pressure differential.
According to an aspect of the present invention, described check (non-return) valve chip module comprises the non-return valve block of integrated circle, the lower surface of described non-return valve block is arranged with the connection groove thinner than peripheral position, and the madial wall line face of the periphery of described non-return valve block and described cover body is fitted.
The downward bending of the periphery of described non-return valve block forms the edge, and the corresponding position in the upper edge of described madial wall and described edge is provided with a circle chamfering and fits to realize the line face.Thus, periphery that the check (non-return) valve chip module combines with cover body and centre are all realized seamless, can prevent down cigarette effectively.
Described edge is formed by the downward bending triangular in shape of the periphery of described non-return valve block, and described chamfering is formed on the inner surface at described edge and fits with described leg-of-mutton top line face, makes that contact-making surface is minimum and helps non-return valve block and open thereby do like this.
The centre of described non-return valve block is provided with axis hole, fixedly be equipped with fixed axis in the described axis hole, the two ends of described fixed axis are fixed in the installing hole on the described madial wall, and the described relatively axis hole symmetry of described connection groove can realize the stationary positioned of the relative cover body of check (non-return) valve chip module.
In order to make the check (non-return) valve blade very scrape, upset does not influence exhaust when opening, and described non-return valve block is the seamless thin catch that is pasted with rigidity on the check (non-return) valve blade of described connection groove both sides.
According to another aspect of the present invention, described check (non-return) valve chip module comprises the semicircle non-return valve block of two symmetries, is connected with rotating shaft between two described non-return valve blocks, can be so that the check (non-return) valve sheet rotates around this rotating shaft.
The oil resistant adhesive tape is across between two described non-return valve blocks and cover the fixing clearance of described non-return valve block and described rotating shaft, and airtight thus air outlet is to prevent down cigarette and taint of odour.
Compared with prior art, the invention has the advantages that: under the check (non-return) valve blade, link assembly is set, can avoids lampblack absorber to use for a long time and cause being stained with on the check (non-return) valve blade greasy dirt opening difficult hidden danger, guaranteed the operate as normal of lampblack absorber; Non-return valve block is can be integrated, makes simply, and is seamless between two valve blocks, and periphery and cover body also adopt seamless line face to fit, make that not only the sealing of outlet housing is reliable, can prevent down cigarette effectively, also convenient opening of non-return valve block; Because non-return valve block only needs a fixed axis can be fixed in the cover body, it is convenient more to install for two rotating shafts of double valve sheet are fixed.
Description of drawings
Fig. 1 is the perspective view according to an embodiment of outlet housing of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view;
Fig. 3 is the perspective view of the cover body of first embodiment of the invention;
Fig. 4 is the decomposition texture schematic diagram of the check (non-return) valve chip module of first embodiment of the invention;
Fig. 5 is the decomposition texture schematic diagram of the link assembly of first embodiment of the invention.
Fig. 6 is the perspective view according to another embodiment of outlet housing of the present invention;
Fig. 7 is the decomposition texture schematic diagram of the check (non-return) valve chip module of second embodiment of the invention.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one
Referring to Fig. 1, Fig. 2 and Fig. 4, the antiseized lampblack absorber check (non-return) valve of a kind of anti-down cigarette comprises cover body 1, is arranged on the check (non-return) valve chip module 2 in the cover body 1 and is connected the link assembly 3 of check (non-return) valve chip module 2 lower surfaces.
Check (non-return) valve chip module 2 comprises non-return valve block 21 and catch 22, and the circular piece that non-return valve block 21 is formed in one is preferred, adopts rubber to make.The bending downwards of the periphery of non-return valve block 21 forms edge 211, covers in the upper edge of the madial wall 11 of cover body 1, with the complete closed air outlet.This edge 211 can be as shown in Figure 2, and preferably downward bending triangular in shape forms.The position that the upper edge of madial wall 11 contacts with non-return valve block 21 forms a circle chamfering 112, can be formed on inner surface, outer surface or the inside and outside surface at edge 211 all has, preferably as shown in Figure 2, chamfering 112 is formed on the inner surface at edge 211, fit with the apex line face at edge 211, thereby both form minimum contact-making surface and are difficult for adhesion, make non-return valve block 21 be easy to open.
The centre of non-return valve block 21 is provided with axis hole 212, in being located in regularly for fixed axis 4.The two ends of fixed axis 4 are located in the installing hole 111 on the madial wall 11 of cover body 1, thus to check (non-return) valve chip module 2 stationary positioned.The relative axis hole 212 of non-return valve block 21 lower surfaces is provided with symmetrically and connects groove 213, and preferred, connecting groove 213 is U-shaped.Connect groove 213 and make this place form the thin-walled thinner, thereby making the semicircular check (non-return) valve blade 214 on non-return valve block 21 both sides make progress herein to overturn opens or reset than peripheral position.Because non-return valve block 21 is one-body molded, seamless in the middle of two check (non-return) valve blades 214, make that sealing is comparatively reliable.Non-return valve block 21 edges and middle sealing state prevent down cigarette and taint of odour effectively.
Because the check (non-return) valve blade 214 that rubber is made does not have rigidity, very not scraping when digging to influence exhaust, then need be stained with a catch 22 respectively and also still constitute simultaneously seamless state on check (non-return) valve blade 214, and catch 22 is thin sheet metal, preferably, make by iraurite.
Referring to Fig. 3 and Fig. 5, link assembly 3 comprises locating shaft 31 and blade connecting rod both arms 32.Be provided with fixed bar 12 in the cover body 1, the two ends of fixed bar 12 are fixed on the madial wall 11, and the centre is provided with fixing hole 121, and the upper end of locating shaft 31 is fixed in the fixing hole 121, and preferred, fixing hole 121 is square, rotate to prevent locating shaft 31.
Blade connecting rod both arms 32 comprise the pitman arm 322 at connecting rod 321 and connecting rod 321 two ends, and pitman arm 322 is connected check (non-return) valve blade 214 lower surfaces.The centre of connecting rod 321 is connected with alignment pin connecting rod 323, and the end of alignment pin connecting rod 323 and alignment pin 324 is fixing, and be preferred, and connecting rod 321 and alignment pin connecting rod 323, alignment pin connecting rod 323 and alignment pin 324 are vertical, and connecting rod 321 is parallel with alignment pin 324.The two ends of alignment pin 324 are located in the locating hole 325 of locating shaft 31 lower ends rotationally.Alignment pin 324 is provided with blade connecting rod 326, and the other end of blade connecting rod 326 is fixed with blade 327, and blade 327 is preferably placed with 31 one-tenth miter angles of locating shaft, so that can be started when inside and outside formation pressure differential.
Locating shaft 31 and connecting rod both arms 32 are metal and make, and preservative treatment is all done on the surface, and the junction of blade connecting rod both arms 32 is by being welded.
The principle of the present invention and the course of work are as follows:
When lampblack absorber was worked, check (non-return) valve blade 214 was owing to the inside and outside pressure differential of outlet housing is opened; When lampblack absorber quit work, check (non-return) valve blade 214 relied on deadweight and resets, and working method and existing bivalve plate check (non-return) valve are similar.In order to prevent to exist check (non-return) valve chip module 2 to open the hidden danger of difficulty after long-time the use, also can open and reset by link assembly 3 auxiliary check (non-return) valve blades 214 upsets; When lampblack absorber was worked, gas extraction system made the inside and outside pressure differential that produces of check (non-return) valve, and blade 327 is up swing under action of pressure, thus the pitman arm 322 that drives two ends also swing to equidirectional, help check (non-return) valve blade 214 easily to open; When lampblack absorber is closed, can be under the effect of the deadweight of check (non-return) valve blade 214 and blade 327, check (non-return) valve blade 214 resets, and the sealing outlet housing prevents down cigarette and taint of odour.
Embodiment two
Referring to Fig. 6 and Fig. 7, the antiseized lampblack absorber check (non-return) valve of a kind of anti-down cigarette comprises cover body 1 ', is arranged on check (non-return) valve chip module 2 ' and the link assembly (not shown) that is connected check (non-return) valve chip module 2 ' lower surface in the cover body 1 '.The difference of itself and embodiment one is that check (non-return) valve chip module 2 ' comprises the non-return valve block 21 ' of two symmetries, and the pitman arm of link assembly is connected the lower surface of non-return valve block 21 '.Non-return valve block 21 ' semicircular in shape, between be connected with rotating shaft 5, the two ends of rotating shaft 5 are fixed in the cover body 1 '.Junction in two non-return valve blocks 21 ' and rotating shaft 5, be pasted with the adhesive tape 6 of an oil resistant, this oil resistant adhesive tape 6 makes non-return valve block 21 ' to cover air outlet more closely across covering middle space of installing between two non-return valve blocks 21 ' thus, prevents down cigarette and taint of odour.
The above is a preferred implementation of the present invention only, should be pointed out that for the ordinary skill in the art, not breaking away under the principle prerequisite of the present invention, can also make various deformation and improvement, and this also should be considered as protection scope of the present invention.
Claims (10)
1. outlet housing that is used for lampblack absorber, comprise cover body (1,1 ') and be arranged on described cover body (1,1 ') Nei check (non-return) valve chip module (2,2 '), it is characterized in that, described cover body (1,1 ') be provided with fixed bar (12) in, the centre of described fixed bar (12) is provided with fixing hole (121), and described check (non-return) valve chip module (2,2 ') lower surface is connected with and is used for antiseized link assembly (3), described link assembly (3) comprise locating shaft (31) with can relative described locating shaft (31) rotating blades connecting rod both arms (32), the upper end of described locating shaft (31) is fixed in the described fixing hole (121).
2. outlet housing as claimed in claim 1, it is characterized in that, described blade connecting rod both arms (32) comprise connecting rod (321) and at the pitman arm (322) at described connecting rod (321) two ends, described pitman arm (322) is connected the lower surface of described check (non-return) valve blade (214), the two ends of the alignment pin (324) that the alignment pin connecting rod (323) of fixedlying connected with described connecting rod (321) is terminal can be located in the locating hole (325) of described locating shaft (31) lower end rotationally, described alignment pin (324) is provided with blade connecting rod (326), the other end of described blade connecting rod (326) is fixed with blade (327), described blade (327) and the angled placement of described locating shaft (31).
3. outlet housing as claimed in claim 2 is characterized in that, described blade (327) becomes miter angle to place with described locating shaft (31).
4. as each described outlet housing among the claim 1-3, it is characterized in that, described check (non-return) valve chip module (2) comprises the non-return valve block of integrated circle (21), the lower surface of described non-return valve block (21) is arranged with the connection groove (213) thinner than peripheral position, and madial wall (11) the line face of the periphery of described non-return valve block (21) and described cover body (1) is fitted.
5. outlet housing as claimed in claim 4, it is characterized in that, the downward bending of the periphery of described non-return valve block (21) forms edge (211), and the corresponding position in the upper edge of described madial wall (11) and described edge (211) is provided with a circle chamfering (112) and fits to realize the line face.
6. outlet housing as claimed in claim 5, it is characterized in that, described edge (211) is formed by the downward bending triangular in shape of the periphery of described non-return valve block (21), and described chamfering (112) is formed on the inner surface at described edge (211) and fits with described leg-of-mutton top line face.
7. outlet housing as claimed in claim 4, it is characterized in that, the centre of described non-return valve block (21) is provided with axis hole (212), fixedly be equipped with fixed axis (4) in the described axis hole (212), the two ends of described fixed axis (4) are fixed in the installing hole (111) on the described madial wall (11), the described relatively axis hole of described connection groove (213) (212) symmetry.
8. outlet housing as claimed in claim 4 is characterized in that, described non-return valve block (21) is gone up the seamless thin catch (22) that is pasted with rigidity at the check (non-return) valve blade (214) of described connection groove (213) both sides.
9. as each described outlet housing among the claim 1-3, it is characterized in that described check (non-return) valve chip module (2 ') comprises the semicircle non-return valve block (21 ') of two symmetries, be connected with rotating shaft (5) between two described non-return valve blocks (21 ').
10. outlet housing as claimed in claim 9 is characterized in that, oil resistant adhesive tape (6) is across between two described non-return valve blocks (21 ') and cover the fixing clearance of described non-return valve block (21 ') and described rotating shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110224457 CN102252359B (en) | 2011-08-04 | 2011-08-04 | Air discharging cover for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110224457 CN102252359B (en) | 2011-08-04 | 2011-08-04 | Air discharging cover for range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102252359A true CN102252359A (en) | 2011-11-23 |
| CN102252359B CN102252359B (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110224457 Active CN102252359B (en) | 2011-08-04 | 2011-08-04 | Air discharging cover for range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102252359B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927601A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet device for range hoods |
| CN102927600A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet housing of range hood |
| CN107469228A (en) * | 2017-08-11 | 2017-12-15 | 四川大学华西医院 | Safety one-way valve |
| CN109667969A (en) * | 2017-10-17 | 2019-04-23 | 安徽谷王烘干机械有限公司 | Hot-blast stove and its flue gas explosion-protection equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11193947A (en) * | 1997-12-29 | 1999-07-21 | Yamaha Livingtec Corp | Range hood |
| CN2474928Y (en) * | 2001-04-05 | 2002-01-30 | 严博安 | Axial-flow type environmental protection energy saving kitchen fume exhauster |
| CN1391066A (en) * | 2002-07-01 | 2003-01-15 | 宁波方太厨具有限公司 | Air discharging cover for oil soot exhauster |
| CN2704709Y (en) * | 2003-09-11 | 2005-06-15 | 夏志生 | Counter arrested air exhausting joints |
| CN101178186A (en) * | 2006-11-07 | 2008-05-14 | 李宗彦 | Airflow regulating switch |
| CN101881476A (en) * | 2010-06-22 | 2010-11-10 | 宁波方太厨具有限公司 | Air outlet device used for range hood |
| CN202177158U (en) * | 2011-08-04 | 2012-03-28 | 宁波方太厨具有限公司 | Air-out cover for lampblack absorber |
-
2011
- 2011-08-04 CN CN 201110224457 patent/CN102252359B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11193947A (en) * | 1997-12-29 | 1999-07-21 | Yamaha Livingtec Corp | Range hood |
| CN2474928Y (en) * | 2001-04-05 | 2002-01-30 | 严博安 | Axial-flow type environmental protection energy saving kitchen fume exhauster |
| CN1391066A (en) * | 2002-07-01 | 2003-01-15 | 宁波方太厨具有限公司 | Air discharging cover for oil soot exhauster |
| CN2704709Y (en) * | 2003-09-11 | 2005-06-15 | 夏志生 | Counter arrested air exhausting joints |
| CN101178186A (en) * | 2006-11-07 | 2008-05-14 | 李宗彦 | Airflow regulating switch |
| CN101881476A (en) * | 2010-06-22 | 2010-11-10 | 宁波方太厨具有限公司 | Air outlet device used for range hood |
| CN202177158U (en) * | 2011-08-04 | 2012-03-28 | 宁波方太厨具有限公司 | Air-out cover for lampblack absorber |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927601A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet device for range hoods |
| CN102927600A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet housing of range hood |
| 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 |
| CN107469228A (en) * | 2017-08-11 | 2017-12-15 | 四川大学华西医院 | Safety one-way valve |
| CN109667969A (en) * | 2017-10-17 | 2019-04-23 | 安徽谷王烘干机械有限公司 | Hot-blast stove and its flue gas explosion-protection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102252359B (en) | 2013-07-24 |
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