CN2264318Y - Air valve - Google Patents
Air valve Download PDFInfo
- Publication number
- CN2264318Y CN2264318Y CN 94247842 CN94247842U CN2264318Y CN 2264318 Y CN2264318 Y CN 2264318Y CN 94247842 CN94247842 CN 94247842 CN 94247842 U CN94247842 U CN 94247842U CN 2264318 Y CN2264318 Y CN 2264318Y
- Authority
- CN
- China
- Prior art keywords
- valve
- stay cord
- exhaust
- door
- force
- 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.)
- Expired - Fee Related
Links
- 239000000779 smoke Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000013013 elastic material Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Air-Flow Control Members (AREA)
Abstract
A valve for the outlet of an exhaust device, in particular for the outlet of a range hood or exhaust fan. The exhaust valve is provided with an air valve (3) protruding towards the exhaust direction, two equal force arms (4) and (6) are arranged on the exhaust valve, the two force arms are connected with a porous sheet (8) through pull ropes (2) and (7), and the rope is tensioned through a pulley (1). The air valve (3) is connected with the air valve seat (9) through the hinge (5), and can carry out limiting, positioning and returning according to the requirements of users and natural conditions, thereby expanding the application range, having small exhaust resistance, strong weather-proof capability, good natural ventilation effect, simpler structure and thoroughly solving the problem of opening the air passing door.
Description
The utility model is a kind of exhaust apparatus outlet that is used for, especially for the valve of smoke exhaust, exhaust fan outlet.
Shutter and double leaf valve, its shortcoming are arranged is that leaf baffle causes resistance greatly, easily to be stained with oil in exhaust duct when opening to common this door on the market; Blade gaps many more, and sealing is poor; Can not control, promptly can not carry out gravity-flow ventilation, not have the ability that prevents reverse pressure; The scope of application is single.Solved above-mentioned subproblem though the patent No. is 93206668.2 windproof exhausting window, but such shortcoming is arranged: valve can not standard-sized sheet at calm no gas, has resistance, increases the area of becalming there being wind weather not adjust aperture with situation; Can not the regulated at will aperture regulate air quantity during gravity-flow ventilation, and can not control automatically, the problem that wind is moved into one's husband's household upon marriage out does not also thoroughly solve; The structure relative complex.
The purpose of this utility model provides a kind of improved valve, it can position according to the needs of user and natural conditions, spacing, return, its range of application is big, exhaust resistance is little, the weather proof ability is strong, effect of natural ventilation good, structure is simpler thereby make, and the problem that wind is moved into one's husband's household upon marriage out is solved.
The utility model is achieved in that to have a valve that protrudes to discharge directions, the one edge is connected by hinge with valve seating one edge, hinge axes is established the arm of force that opens the door on one side, its end points connects a stay cord, the hinge axes another side is established the arm of force of closing the door, its end points connects another stay cord, by two stay cords being handled spacing, location, the return can realize valve.
The other end at two stay cords is connected with the two ends of a porous chips respectively.With selecting hole on the porous chips to hang over the position that method on the tingle is adjusted valve.To close the door the arm of force and the arm of force Design of length of opening the door greatly to equating, can make two arm of force stay cords by the pulley realization interlock that is connected.The stay cord that is connected with porous chips is strained by pulley, with unidirectional move or fixedly the mode of porous chips realize two-way control to valve.The shape of door is that the shape according to air exit or valve seating decides, and promptly can be a spoonful shape, also can be arc grade and protrude to discharge directions.For windproof, the rainproof ability that improves valve also can make the valve projected area greater than the valve seating bore.
The advantage that has adopted said structure to have is: the first, and desirable the fixing spacing of door of cooling down.Reach more than 90 degree at calm weather sending down abnormally ascending door, reach the air exit non-resistance, and having wind weather valve can be limited in below 60 degree,, improve the ability that prevents reverse pressure with the increase area of becalming; The second, valve can be fixed on the optional position and carry out gravity-flow ventilation, thereby because the aperture difference makes the different regulating actions that reach of ventilation; The 3rd, when valve is fixed on the closed position, be equal to the pinning valve, can thoroughly solve the difficult problem that wind is moved into one's husband's household upon marriage out, thereby can cancel and fasten device, not only simplify the structure, reduce cost, also improved the sealing of valve.The solution of the wind problem of moving into one's husband's household upon marriage out provides condition greater than the valve bore for the valve projected area, therefore also can effectively prevent to have the normal exhaust that large-area deep bead guarantees strong wind weather when windproof again in the rainwater inlet chamber when valve is opened; The 4th, the function with return can realize that any direction of valve installs, and has enlarged its scope of application, straight-line return structure can make hinge below the valve installed realize that adding spring carries out return; The 5th, after opening valve, the frictional force of objects such as stay cord and pulley can not close by own wt, and therefore make valve length open the maintenance gravity-flow ventilation, and when wind weather is arranged, valve overcome friction under the blast effect is closed automatically and has been kept sealing process.This frictional force can also make slow the opening of valve delay the pass, causes sound when avoiding wind-force with valve-closing, solves the difficult problem that wind is moved into one's husband's household upon marriage out from another angle; The 6th, be equal to a reclinate bend pipe during this opening, the valve that has sealing process when closing also can be installed in ventilation for residences mouth place.
Accompanying drawing 1 is to be spoonful shape is protruded schematic diagram from valve to discharge directions.
Accompanying drawing 2 is to be the arc schematic diagram that protrudes valve to discharge directions.
Protrude to discharge directions with reference to attached Fig. 1 and 2 valve [3], the one edge is connected by hinge [5] with valve seating [9] one edges, on one side hinge axes is established the arm of force that opens the door [6], its end points connects stay cord [7], the hinge axes another side is established the arm of force of closing the door [4], and its end points connects stay cord [2].The end points of stay cord [2] and stay cord [7] is connected with the two ends of porous chips [8] respectively.When the arm of force [4] and the arm of force [6] when length setting equates, stay cord [2] is connected by pulley [1] with stay cord [7], or the stay cord that will be connected with porous chips [8] is close to pulley [1] by pulley [1] tension in order to make rope, can between rope, hang an elastic material, also direct tension pulley [1].
Be a spoonful shape with reference to accompanying drawing 1 valve [3] and protrude to discharge directions, this valve generally is installed in the lampblack absorber exhaust outlet, and this is a kind of valve (gas and artificial) of dual control.When this valve is installed in dwelling house exhaust duct inlet, valve [3] hinge below, stay cord [2] draws upward, its stay cord an elastic material or elastic material string at stay cord [2] end, its effect can be closed valve [3] automatically, also can alter course towards drop-down by a pulley or the little material of frictional force, purpose is to manipulate directly.Stay cord [2] can be connected with porous chips [8] two ends with stay cord [7], but also each independent use.At this moment the effect of stay cord [7] is gravity-flow ventilation or anxious opening and the special circumstances downward swing door.
Be arc with reference to accompanying drawing 2 valves [3] and protrude to discharge directions, the both sides sealing forms a flat seal face.The switch arm of force is located at the side.When the valve quality is big, can on valve seating [9], establish pulley [13], [14] changed course of will restricting.This valve generally is used for the exhaust fan outlet, is a kind of manually operated valve.If continue to use the former power switch [10] of exhaust fan, can establish the arm of force [12] that opens the door in the valve another side again, stay cord [11] two ends are connected with power switch [10] end points with the arm of force [12] end points respectively.When pulling power switch when [10], valve [3] is opened simultaneously with the exhaust fan motor and is started, and valve at this moment [3] aperture is at 60 degree following (windproof position), as thinks that sending down abnormally ascending door aperture increases, and can spur porous chips [8] and valve is opened big back locate.As need carry out gravity-flow ventilation at ordinary times, fasten etc. also is to finish by stay cord [2], stay cord [7], porous chips [8], this system of pulley [1].
The projected area of valve there are three kinds greater than the mode of valve seating bore: the first, flange is established at valve [3] edge, just in time be buckled in during valve-closing on the set boss of valve seating [9] and improve sealing; The second, on one side increasing area by hinge, make valve [3] when opening, improve the weather proof ability with join bend of formation and awning of valve seating [9] fully; The 3rd, beyond valve [3] sealing surface, all increase the ability that respective area strengthens preventing reverse pressure.Above method also can adopt simultaneously.
Valve hinge axis and cooperating of hole being added the corresponding magnitude of interference, valve [3] can not be closed by own wt, is to keep valve length to open, have wind to close the gentle slow other method of closing of opening automatically.
Claims (7)
1, a kind of exhaust apparatus that is used for exports, valve especially for smoke exhaust and exhaust fan outlet, has a valve [3] that protrudes to discharge directions, the one edge is connected by hinge [5] with valve seating [9] one edges, hinge axes is established the arm of force that opens the door [6] on one side, its end points connects stay cord [7], and it is characterized in that: the hinge axes another side is established the arm of force of closing the door [4], and its end points connects stay cord [2].
2, a kind of valve according to claim 1 is characterized in that stay cord [2] is connected with porous chips [8] two ends respectively with stay cord [7] other end.
3, a kind of valve according to claim 1, the arm of force [6] that it is characterized in that opening the door is big to equating that stay cord [2] is connected by pulley [1] with stay cord [7] with the arm of force of closing the door [4] length.
4, a kind of valve according to claim 1 is characterized in that stay cord [2] and stay cord [7] are connected the back by pulley [1] tension with porous chips [8] two ends.
5, a kind of valve according to claim 1 is characterized in that valve [3] is a spoonful shape and protrudes to discharge directions.
6, a kind of valve according to claim 1 is characterized in that valve [3] is arc and protrudes to discharge directions.
7, a kind of valve according to claim 1 is characterized in that valve [3] projected area is greater than valve seating [9] bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94247842 CN2264318Y (en) | 1994-12-15 | 1994-12-15 | Air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94247842 CN2264318Y (en) | 1994-12-15 | 1994-12-15 | Air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2264318Y true CN2264318Y (en) | 1997-10-08 |
Family
ID=33852950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94247842 Expired - Fee Related CN2264318Y (en) | 1994-12-15 | 1994-12-15 | Air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2264318Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374317A (en) * | 2010-08-17 | 2012-03-14 | 刘玉建 | Check valve for range hood |
-
1994
- 1994-12-15 CN CN 94247842 patent/CN2264318Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374317A (en) * | 2010-08-17 | 2012-03-14 | 刘玉建 | Check valve for range hood |
| CN102374317B (en) * | 2010-08-17 | 2015-09-09 | 刘玉建 | Kitchen ventilator safety check |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |