CN201475442U - Gravity type wind check-valve - Google Patents
Gravity type wind check-valve Download PDFInfo
- Publication number
- CN201475442U CN201475442U CN2009202090774U CN200920209077U CN201475442U CN 201475442 U CN201475442 U CN 201475442U CN 2009202090774 U CN2009202090774 U CN 2009202090774U CN 200920209077 U CN200920209077 U CN 200920209077U CN 201475442 U CN201475442 U CN 201475442U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve block
- valve plates
- gravity type
- return air
- 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 - Lifetime
Links
Images
Landscapes
- Air-Flow Control Members (AREA)
Abstract
The utility model relates to a gravity type wind check-valve arranged horizontally or almost horizontally, which comprises a casing and a plurality of sheet type valve plates; the plurality of sheet type valve plates are arranged with same interval along the same direction; both ends of each valve plate are connected with the casing shaft while capable of rotating around the shaft; and are moved synchronously by the connecting rods cross the valve plates. When the valve plates are in closed state, no seam exists between valve plates; wherein, the bottom of each valve plate is fixed with a connection piece which is connected with the casing by pivot; the top edge of each valve plate is connected with a connecting rod by pivot. When the valve plates are in opened state, all the valve plates are pushed up from the casing integrally; and are valve plates are closed by the self weight of the valve plates and the connecting rods. The valve of the utility model is suitable for vertical air supply occasion, such as the roof air supply; is generally mounted in airduct or roof flushing structure; also can be used for indoor ventilation together with other equipments to prevent air flow returning. The valve is opened and closed by the self weight of valve plates; and achieves the advantages of safety, low cost, easy installation, durability, easy maintenance and wide application range.
Description
Technical field
The utility model relates to a kind of gravity type non-return air-valve, is applicable to vertical ventilation, and as roof air-supply occasion etc., for example roof of large scale industry factory building air-supply also can be used for the abutment wall air-supply, prevents that air-flow from pouring in down a chimney.
Background technique
With current technical situation, when using the indoor air-supply of roof ventilator, multiselect electrodynamic type non-return air-valve, and this type of air-valve still has deficiency aspect cost performance, comprise: electrodynamic type non-return air-valve need be equipped with additional electric actuator, has increased cost greatly; Need absolute the maintenance and the blower fan interlock, then can cause Fan Equipment to be damaged if break down; During high wind speed, can't adjust automatically, easily tremble, influence working life because of the valve opening fixed angle; The electric actuator fault point is high and install comparatively complicated.
Gravity type non-return air-valve can because of circuit or the final controlling element problem cause the air-valve fault not open, blower fan is impaired, system is improper stops etc., also can not close by switch because of the stuck air-valve that causes of single valve block.Therefore, the use for electrodynamic type non-return air-valve exists technical defective in some aspects on the market.
In view of this, claimant of the present utility model discloses a kind of " heavy hammer type non-return air-valve " among state's utility model patent ZL200820060205.9 therein, by connect equilibrium block at least one valve block, by this weight structure air-valve cuts out automatically.
Summary of the invention
It is a kind of simple in structure that the technical problem of the required solution of the utility model is to provide, employing wind-force is opened, the gravity type non-return air-valve that gravity is closed, overcome the defective that conventional electrodynamic type non-return air-valve cost height, fault are many, the life-span is short, solve the single valve block of conventional blinds and open and close problems such as closing job failure is many, environmental inadequacies voluntarily.
The utility model solves the problems of the technologies described above the technological scheme of being taked: a kind of gravity type non-return air-valve, be horizontally disposed with or the level of approximation setting, comprise shell and the board-like valve block of most piece, most piece valve blocks are arranged and the installation direction unanimity with same intervals, each valve block two ends all is connected with enclosure axis and can overturns around axle, and pass through across the synchronous start of the connecting rod of each valve block, when valve block is closed state, seamless between valve block, wherein, the bottom of described each valve block is fixed with connecting sheet, and connecting sheet is pivoted with shell and is connected; The upper edge of each valve block is pivoted with connecting rod and is connected, and when valve block was opened, each valve block integral body was upwards boosted from shell, closes valve block by the weight of valve block and connecting rod self.
Because the board-like valve block of gravity type non-return air-valve adopts whole linkage structure, open simultaneously, thereby have the ability enough air quantity, blast are provided, satisfied normal service condition.
Design principle of the present utility model is: under outage state, gravity type non-return air-valve realizes cutting out of valve block by the interlock of valve block self gravitation; In when operation, the air-flow in the system is strengthened under the effect of blower fan gradually, when wind-force reaches when being enough to overcome the deadweight of valve block and connecting rod, each valve block that is connected with connecting rod is opened simultaneously, valve block is to tilt or plumbness with the wind-force size, promptly is opening state, and air-flow is unimpeded.
The utility model is different from technology " heavy hammer type non-return air-valve " formerly, has cancelled the setting of equilibrium block, and by connecting sheet valve block being pivoted with shell is connected, and when the non-return air-valve was opened, each valve block integral body was upwards boosted from shell.Owing to connecting sheet is set in the valve block bottom, a position that is pivoted is moved down, only depend on the weight of valve block and connecting rod self can play the effect of closing the non-return air-valve.
On the such scheme basis, described valve block is an aluminum material, adopts the board-like valve block of aluminum material, and is in light weight, easily opens.
On the such scheme basis, in order to increase the sealability of gravity type non-return air-valve, described valve block edge along its length is provided with the tongue and groove structure, when valve block is closed, and the mutual lap seal of the tongue and groove of adjacent two valve blocks.
On the such scheme basis, on the described shell flange is installed, fixedlys connected with airduct, roof flashing by fastening piece.Gravity type non-return air-valve can level be installed in the inboard or the bottom of flashing.
Described shell is connected with connecting rod by valve block, to realize valve block opening angle mechanical fixation and mechanical interlocking.
The beneficial effects of the utility model are:
Gravity type non-return air-valve of the present utility model generally is installed in airduct or the roof flashing, also can be used for the indoor wind that changes with other Fan Equipment, it is closed to adopt the deadweight of board-like valve block to open, and has Security, low, the easy installation of cost, serviceability, easy-maintaining, characteristics such as applied widely.
Description of drawings
Fig. 1 is a plan structure schematic representation of the present utility model.
Fig. 2 is a main TV structure schematic representation of the present utility model.
Fig. 3 is the structural representation A that model utility and flashing are installed.
Fig. 4 is the structural representation B that model utility and flashing are installed.
Label declaration in the accompanying drawing
1-shell 2-valve block 3-connecting rod
4-pivot 5-connecting sheet 6-flange
7-flashing 8-fastening piece
Embodiment
Seeing also Fig. 2 is that main TV structure schematic representation of the present utility model and Fig. 1 are plan structure schematic representation of the present utility model, a kind of gravity type non-return air-valve, be horizontally disposed with or the level of approximation setting, comprise the board-like valve block 2 of shell 1 and most piece, most piece valve blocks 2 are arranged and the installation direction unanimity with same intervals, each valve block 2 two ends all is connected with 1 on shell and can overturns around axle, and by connecting rod 3 synchronous starts across each valve block, when valve block 2 is closed state, 2 of valve blocks are seamless, wherein, the bottom of described each valve block 2 is fixed with connecting sheet 5, and connecting sheet 5 is established with shell 1 pivot (not shown) and is connected; The upper edge of each valve block 2 is connected with connecting rod 3 pivots 4, and when valve block 2 was opened, each valve block 2 integral body was upwards boosted from shell 1, closes valve block by the weight of valve block 2 and connecting rod 3 self.Described valve block 2 is an aluminum material.
Edge along its length, valve block 2 surfaces can be provided with the tongue and groove structure, when valve block 2 closures, and the mutual lap seal of the tongue and groove of adjacent two valve blocks 2.
See also structural representation A that Fig. 3 installs for model utility and flashing and Fig. 4 for shown in the structural representation B of model utility and flashing installation, the left and right sides all is equipped with flange 6 and passes through fastening piece 8 and fixedly connected with roof flashing 7 bottoms on the shell 1 of described gravity type non-return air-valve.
Claims (5)
1. gravity type non-return air-valve, be horizontally disposed with or the level of approximation setting, comprise shell and the board-like valve block of most piece, most piece valve blocks are arranged and the installation direction unanimity with same intervals, and each valve block two ends all is connected with enclosure axis and can overturns around axle, and pass through across the synchronous start of the connecting rod of each valve block, when valve block is closed state, seamless between valve block, it is characterized in that: the bottom of described each valve block is fixed with connecting sheet, and connecting sheet is pivoted with shell and is connected; The upper edge of each valve block is pivoted with connecting rod and is connected, and when valve block was opened, each valve block integral body was upwards boosted from shell, closes valve block by the weight of valve block and connecting rod self.
2. gravity type non-return air-valve according to claim 1 is characterized in that: described valve block is an aluminum material.
3. gravity type non-return air-valve according to claim 1 and 2 is characterized in that: described valve block edge along its length is provided with the tongue and groove structure, when valve block is closed, and the mutual lap seal of the tongue and groove of adjacent two valve blocks.
4. according to claims 1 described gravity type non-return air-valve, it is characterized in that: on the described shell flange is installed, fixedlys connected with airduct, roof flashing by fastening piece.
5. according to claims 1 or 4 described gravity type non-return air-valves, it is characterized in that: described shell is connected with connecting rod by valve block, to realize valve block opening angle mechanical fixation and mechanical interlocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090774U CN201475442U (en) | 2009-09-03 | 2009-09-03 | Gravity type wind check-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090774U CN201475442U (en) | 2009-09-03 | 2009-09-03 | Gravity type wind check-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475442U true CN201475442U (en) | 2010-05-19 |
Family
ID=42411691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202090774U Expired - Lifetime CN201475442U (en) | 2009-09-03 | 2009-09-03 | Gravity type wind check-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442049A (en) * | 2018-11-12 | 2019-03-08 | 江苏中科睿赛污染控制工程有限公司 | A kind of Electric air valve with gear |
| CN111267605A (en) * | 2020-03-31 | 2020-06-12 | 重庆长安汽车股份有限公司 | Engine compartment drainage structure |
-
2009
- 2009-09-03 CN CN2009202090774U patent/CN201475442U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442049A (en) * | 2018-11-12 | 2019-03-08 | 江苏中科睿赛污染控制工程有限公司 | A kind of Electric air valve with gear |
| CN111267605A (en) * | 2020-03-31 | 2020-06-12 | 重庆长安汽车股份有限公司 | Engine compartment drainage structure |
| CN111267605B (en) * | 2020-03-31 | 2023-03-28 | 重庆长安汽车股份有限公司 | Engine compartment drainage structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201221626Y (en) | Weight dropper type non-return wind valve | |
| WO2016152296A1 (en) | Intake/exhaust unit and double skin system using same | |
| CN102297490B (en) | Roof wind-sheltering adjustable lighting ventilator | |
| CN109930680A (en) | A kind of wind-force dredged roof anti-blocking floor drain | |
| US20170097171A1 (en) | Airfoil damper | |
| CN201475442U (en) | Gravity type wind check-valve | |
| CN202170804U (en) | Three-way air duct of a double fan ventilation system | |
| CN201774771U (en) | Rack-mounted standard cabinet with internal circulating air duct | |
| EP2580532B1 (en) | Ventilation arrangements | |
| CN206909016U (en) | A kind of rack automatic throttle device | |
| CN103015599B (en) | Thin roof daylighting ventilator | |
| CN209447433U (en) | A kind of architectural engineering anti-wind warning plate | |
| CN204597300U (en) | Multipurpose height protection power distribution cabinet shell | |
| CN101749048A (en) | Subway siding partition door | |
| CN202188175U (en) | Eccentric check valve | |
| CN201907525U (en) | Locomotive air passage port | |
| CN207185052U (en) | A kind of heat abstractor for the Car license recognition switch board that stops | |
| CN102808975B (en) | Eccentric check valve | |
| CN101986049A (en) | Parallel air duct type natural ventilator | |
| CN207379025U (en) | Wind outlet panel and the air conditioner indoor unit with wind outlet panel | |
| CN206131365U (en) | Positive -pressure air supply opening | |
| CN114809464B (en) | Automatically controlled circular arc delivery track in openable fire prevention skylight | |
| CN203022195U (en) | Roof thin lighting ventilator | |
| CN207999510U (en) | A kind of fire-fighting benefit air-valve | |
| CN1218148C (en) | Natural ventilator using wind pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
|
| CX01 | Expiry of patent term |