A kind of intelligent electric check (non-return) valve and its installation method
Technical field
The present invention relates to check (non-return) valve field, in particular to a kind of intelligent electric check (non-return) valve and its installation method.
Background technology
Range hood is one of electric appliance of current family's indispensability, and check (non-return) valve is one of common accessory of range hood.
At present, the check (non-return) valve of range hood enters the registered permanent residence installed in common flue, can be gone out using check (non-return) valve after a period of time
, there is the phenomenon that oil smoke pours in down a chimney in the phenomenon being now not closed completely, and not smooth with discharging fume, and has to tear open in maintenance maintenance check (non-return) valve
The renovated furred ceiling in kitchen is opened to carry out maintenance, considerably increases maintenance cost, family kitchen if Integral ceiling or
Plaster tablet suspended ceiling, if substantially repairing or replace check (non-return) valve, resident family there is no fear of receiving to destroy existing furred ceiling substantially
Replace a check (non-return) valve, the oil smoke occurred which results in resident family, which pours in down a chimney problem, to be solved, and ultimately result in resident family be unwilling to
The reason for replacement is that this maintenance cost is too high.
The content of the invention
The present invention provides a kind of intelligent electric check (non-return) valve and its installation method, it is intended to solves check (non-return) valve in the prior art and deposits
The above problem.
What the present invention was realized in:
A kind of intelligent electric check (non-return) valve, applied to kitchen ventilator, including valve body, valve block, and makes when more than preset temperature
The temperature control fire prevention unit that the valve block is closed;The valve body is variable-diameter structure, and its one end includes at least one layer of connect
Circle, the clamping ring are coaxially disposed and coaxial with the valve body;
The temperature control fire prevention unit includes temperature sensor and controller, and the temperature sensor connects the controller,
The controller connects driving unit, and the driving unit includes driving motor, and the driving motor connects the valve block.
Further, the valve block both ends are rotatablely connected with the valve body, and the valve body madial wall is equipped with the first stop part
And second stop part;
First stop part and the second stop part are located at the valve block over and under respectively, and described first stops
Portion and the second stop part are located at the left side and right side of the valve block respectively.
Further, first stop part is semi-circular, it is fixedly connected on the valve body madial wall.
Further, second stop part is semi-circular, it is integrally formed with the valve body.
Further, the intelligent electric check (non-return) valve further includes the open and close controlling unit for controlling the valve block opening and closing;
The open and close controlling unit includes microswitch, and the microswitch includes elastic piece, the microswitch connection
The controller;The driving motor connection adapter piece, the adaptor connect the elastic piece.
Further, the controller connects the control system of the kitchen ventilator;The kitchen ventilator exhaust blower work when institute
State the controller control driving motor work and open the valve block.
Further, the valve block includes drive shaft, and motor is driven described in the driving axis connection;The adaptor is arranged
Outside the drive shaft and the two can be rotated synchronously;
The adaptor includes sliding block, and the driving outside motor is equipped with control box, and the control box is slided equipped with arc
Groove, the sliding block are located in the arc chute.
Further, the drive shaft side face includes the first planar portions, and the adaptor includes connecting hole, the connecting hole
Inner wall forms the second planar portions, and first planar portions fit with second planar portions;
The adaptor side wall stretches out two pieces of extensions, the sliding block and one of detachable phase of extension
Even.
Further, the valve body-side includes connection component;The connection component includes connecting pole, contiguous block and external
Block;The connecting pole includes threaded hole, and the contiguous block includes and the matched external thread section of the threaded hole;The contiguous block is also
Including arranged on the first inclined-plane of its sidepiece;Described external piece has symmetrical two pieces, and the external piece of outside is arc structure, described
External piece of inner side includes and matched second inclined-plane in first inclined-plane;The external piece of outside is equipped with deep gouge, and two described outer
Connect block by elastic ring to be connected, the elastic ring is arranged in the deep gouge;
The contiguous block towards or away from the connecting pole move when, can drive two pieces external piece it is mutually remote or mutually lean on
Closely.
A kind of intelligent electric check (non-return) valve installation method, it is non-return using above-mentioned intelligent electric check (non-return) valve, the intelligent electric
Valve is installed at the kitchen ventilator air outlet;The valve body includes first end and second end, and the clamping ring is arranged on described first
End, the first end and air hose are sealed and are detachably connected, and the air outlet of the second end and the kitchen ventilator seals and removable
Unload connection.
The beneficial effects of the invention are as follows:The intelligent electric check (non-return) valve valve block that the present invention is obtained by above-mentioned design can pass through
Motor control is opened, and has fire protecting performance, it can be ensured that indoor clean and safety;
Intelligent electric check (non-return) valve installation method provided by the invention, kitchen ventilator air outlet is installed on by intelligent electric check (non-return) valve
Place, need not remove furred ceiling when repairing check (non-return) valve, significantly reduces maintenance cost, improve the maintenance meaning of user
It is willing to.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the axonometric schematic diagram for the intelligent electric check (non-return) valve that embodiment of the present invention provides;
Fig. 2 is the schematic front view for the intelligent electric check (non-return) valve that embodiment of the present invention provides;
Fig. 3 is the axonometric schematic diagram in the intelligent electric check (non-return) valve control box that embodiment of the present invention provides;
Fig. 4 is that the interior removal of intelligent electric check (non-return) valve control box that embodiment of the present invention provides drives first after motor to regard
Angle schematic diagram;
Fig. 5 is that the interior removal of intelligent electric check (non-return) valve control box that embodiment of the present invention provides drives second after motor to regard
Angle schematic diagram;
Fig. 6 is that the interior removal of intelligent electric check (non-return) valve control box that embodiment of the present invention provides drives the after motor the 3rd to regard
Angle schematic diagram;
Fig. 7 is that the intelligent electric check (non-return) valve drive shaft that embodiment of the present invention provides and the first visual angle that adaptor is connected show
It is intended to;
Fig. 8 is that the intelligent electric check (non-return) valve drive shaft that embodiment of the present invention provides and the second visual angle that adaptor is connected show
It is intended to;
Fig. 9 is the schematic cross-sectional view for the intelligent electric check (non-return) valve connection component that embodiment of the present invention provides;
Figure 10 is the schematic diagram of temperature control fire prevention unit in the intelligent electric check (non-return) valve that embodiment of the present invention provides;
Figure 11 is the schematic diagram of open and close controlling unit in the intelligent electric check (non-return) valve that embodiment of the present invention provides.
Scheming acceptance of the bid note is respectively:
Intelligent electric check (non-return) valve 100;
Valve body 110;
First stop part 111;
Second stop part 112;
Clamping ring 113;
Connection component 114;
Connecting pole 115;
Contiguous block 116;
External thread section 1161;
First inclined-plane 1162;
External piece 117;
Second inclined-plane 1171;
Deep gouge 1172;
Elastic ring 118;
Valve block 120;
Drive shaft 121;
First planar portions 1211;
Temperature control fire prevention unit 130;
Temperature sensor 131;
Controller 132;
Driving unit 133;
Drive motor 134;
Adaptor 135;
Sliding block 1351;
Connecting hole 1352;
Second planar portions 1353;
Extension 1354;
Control box 136;
Arc chute 1361;
Open and close controlling unit 140;
Microswitch 141
Elastic piece 142.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
Attached drawing in mode, is clearly and completely described the technical solution in embodiment of the present invention, it is clear that described reality
The mode of applying is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The scope of protection.Therefore, below the detailed description of the embodiments of the present invention to providing in the accompanying drawings be not intended to limit will
The scope of the present invention of protection is sought, but is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained without creative efforts, belongs to this
Invent the scope of protection.
In the description of the present invention, it is to be understood that the term of indicating position or position relationship is based on shown in attached drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified equipment
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be that machinery connects
Connect or be electrically connected;It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with or below second feature
Directly contacted including the first and second features, can also include the first and second features not be direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above to include fisrt feature special second
Directly over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
Embodiment 1.
Study and find through inventor, the not smooth reason of existing majority kitchen ventilator smoke evacuation has following:
Reason one:For newly-built building when handing over room, kitchen chimney flue mouth can all install common Smoke prevention check (non-return) valve, and such resident family exists
When moving in finishing, the installation site of oil smoke outlet i.e. Smoke prevention check (non-return) valve will be covered by the way of furred ceiling, and furred ceiling
There is removable aluminum blockage furred ceiling, also have non-disconnectable Integral ceiling and plaster tablet suspended ceiling, due to stopping on range hood
Inverse valve and the structure that the Smoke prevention check (non-return) valve independently sold mostly is opened using range hood wind-force, valve block dead weight is closed, fraction
Spring is installed additional on valve block to help valve to close.In order to ensure that range hood wind-force can blow check (non-return) valve, valve block weight or bullet open
Spring force cannot be excessive, so valve closing forces are smaller, valve block is easily by grease adhesion.After valve block adhesion check (non-return) valve open and close less than
Position, it is that air draft is not smooth to open consequence not in place, and it is that substantial amounts of oil smoke occurs to pour in down a chimney that consequence not in place is closed in air quantity decay, if will
Carrying out maintenance, removable maintenance cost and process are all easier, and if non-disconnectable Integral ceiling or plasterboard is hung
Top is not just replaced substantially, because such furred ceiling is substantially completely enclosed within Smoke prevention check (non-return) valve above furred ceiling, can not grasped
Make space, if to repair, furred ceiling must just be removed, and because such maintenance cost is too high, cause resident family to be unwilling
Spend big price to carry out maintenance, prefer to endure the pain that oil smoke pours in down a chimney, this is that the defects of existing check (non-return) valve installation fixing position is put causes
Not maintenanceability;Even if resident family is ready to remove the check (non-return) valve that renovated furred ceiling goes more to renew, but new check (non-return) valve uses
Still the problem of same occurs after a period of time, such resident family goes to remove renovated Integral ceiling again or plasterboard is hung
The similar unreducible furred ceilings such as top understand the maintenance consciousness for cutting down resident family significantly, because maintenance procedures are too to repair check (non-return) valve
Complicated and too high while traditional cost anti-fire check valve is all to monitor the fire in flue by mechanical metal thermal sensitive piece
The condition of a disaster condition, in the event of fire, mechanical sensing response can cause slowly fire spread come in and also fire decorporate after check (non-return) valve
Maintenance procedures are big.
Reason two:The mode that the existing mostly used valve block of common check (non-return) valve opens and closes all is to lean on lampblack absorber wind
What power was blown open, the intelligent electric check (non-return) valve that the functional reliable motor transmission of any is opened, all service life can occurs not
The problem of long, be stained with oil stain and be not closed completely and cause oil smoke to fall or the check (non-return) valve blown open by kitchen ventilator wind-force is essentially all valve block
Or fill, sticked to blow and do not convinced cause oneself oil smoke row by patient analysis and do not go out.
Reason three:At present although the intelligent electric check (non-return) valve than more recent has driving motor as transmission, but controls driving
The main story for the driving motor that the transmission of motor uniquely relies on simple circuit or stroke type switch to control and reversion, lack itself
Detection function, strong and weak electricity isolation features, anti-interference function and fault alarm function, these defects are all to the safety belt of user
Carry out hidden danger.
The reason for installation and inconvenient maintenance is exactly because check (non-return) valve can be only installed at flue entrance and resident family kitchen
Caused by fitting structure.
The reason for smoke evacuation is not smooth:The grease accumulated on check (non-return) valve makes the increase of valve block weight, stops after installing spring on valve block additional
Inverse valve opens resistance increase, and range hood will consume part air quantity to overcome these resistances;It is particularly wall-mounted on common flue mouth
Check (non-return) valve be bottom-open type, valve block cannot be opened and reduce ventilation section in place, these will cause exhaust air rate to be decayed, row
Cigarette is not smooth.Or there is valve block and cling the air draft of kitchen ventilator blowing not open so that the oil smoke row of own home does not go out.
A kind of intelligent electric check (non-return) valve 100 is present embodiments provided, applied to kitchen ventilator, above-mentioned condition can be improved.Please
Refering to Fig. 1 and Fig. 2, this intelligent electric check (non-return) valve 100 includes valve body 110, valve block 120, and makes when more than preset temperature
The temperature control fire prevention unit 130 that the valve block 120 is closed;
As shown in Figure 1 or 2, the valve body 110 is variable-diameter structure, and its one end includes at least one layer of clamping ring 113, described
Clamping ring 113 is coaxially disposed and coaxial with the valve body 110;The structure that variable-diameter structure, that is, diameter changes, the valve of variable-diameter structure
Body 110 can coordinate with the kitchen ventilator of a variety of different sizes.
The temperature control fire prevention unit 130 includes temperature sensor 131 and controller 132, and the temperature sensor 131 connects
The controller 132, the controller 132 connect driving unit 133, and the driving unit 133 includes driving motor 134, institute
State driving motor 134 and connect the valve block 120.
The connection driving motor 134 of valve block 120, is driven by driving motor 134, and motor 134 is driven in smoke evacuation with moving valve plate
120 open, and will not open because of the adhesion of greasy dirt;Motor 134 is driven to be closed with moving valve plate 120 when that need not discharge fume, no
Meeting Guan Bushang because of transient cause, plays the role of preventing oil smoke from pouring in down a chimney.
Temperature control fire prevention unit 130 can play the role of fireproof, and in the event of a fire, the intensity of a fire passes through public passage
Into smoke exhaust pipe, the temperature at intelligent electric check (non-return) valve 100 is set drastically to raise.
As shown in Figure 10, preset temperature is set in controller 132, is somebody's turn to do when temperature sensor 131 senses that temperature is higher than
During preset temperature, feedback signal drives driving unit 133 to work, controls driving motor 134 to controller 132, controller 132
Valve block 120 is closed.Ensure that the intensity of a fire will not be got in by check (non-return) valve, it is ensured that indoor safety.
As shown in Figure 1,120 both ends of valve block are rotatablely connected with the valve body 110,110 madial wall of valve body is equipped with
First stop part 111 and the second stop part 112;First stop part, 111 and second stop part 112 is located at the valve block respectively
120 over and under, and first stop part, 111 and second stop part 112 respectively positioned at the valve block 120 left side and
Right side.
First stop part 111 and the second stop part 112 are used to play barrier effect to valve block 120, when valve block 120 is in
During closed mode, two positions of valve block 120 are bonded with the first stop part 111 and the second stop part 112 respectively, the first stop part
111 and second stop part 112 limit valve block 120 move, it is ensured that valve block 120 is closed.
In the present embodiment, first stop part 111 is semi-circular, and second stop part 112 is semi-circular, first
111 and second stop part 112 of stop part is integrally formed with the valve body 110.
Semiorbicular first stop part, 111 and second stop part 112 can have larger fitting area with valve block 120,
Make its blocking effect more preferable.It is higher strong that integrally formed processing method has the first stop part 111 and the second stop part 112
Degree, and will not come off with valve body 110.
It should be appreciated that the first stop part 111 and the second stop part 112 are not limited to said structure, can be block or its
His shape, the first stop part 111 and the second stop part 112 are also not necessarily limited to above-mentioned connection mode with valve body 110, can be split type
's.
As shown in figure 11, the intelligent electric check (non-return) valve 100 further includes the opening and closing control for controlling the valve block 120 to be opened and closed
Unit 140 processed;The open and close controlling unit 140 includes microswitch 141, and the microswitch 141 includes elastic piece 142, institute
State microswitch 141 and connect the controller 132;Driving 134 connection adapter piece 135 of motor, the adaptor 135 connect
The elastic piece 142.When installing intelligent electric check (non-return) valve 100, controller 132 is set to connect the control system of the kitchen ventilator;
The controller 132 controls the driving motor 134 to work and opens the valve block 120 during the kitchen ventilator exhaust blower work.
In the present embodiment, controller 132 is realized using microcontroller.Microcontroller on controller 132 can detect automatically
The unlatching of range hood is exhaust blower or headlamp, and corresponding feedback, and handle are made according to the received signal of microcontroller
Signal transmission realizes corresponding action to each control chip.
During the working status of the monolithic machine testing range hood on controller 132, if detecting the air draft of range hood
Machine works, and microcontroller can feed back to the signal detected the driving chip and microswitch 141 of driving motor 134, fine motion
Switch 141 and driving chip receive the signal of singlechip feedbsck, and driving chip can export corresponding signal and give driving motor
134, driving motor 134 can drive the opening and closing of the valve block 120 of intelligent electric check (non-return) valve:
When microcontroller detects the signal that the exhaust blower of range hood is stopped, microcontroller can feed back to signal drive
Signal is fed back to driving motor 134 by the driving chip of dynamic motor 134, driving chip, and driving motor 134 is closed with moving valve plate 120
Close, by driving chip with working while microswitch 141, solve tradition and showing for stall occur with driving motor 134
As and the defects of poor reliability.
When kitchen ventilator is in running order, and fire occurs inside flue suddenly, temperature sensor 131 instantaneously senses temperature
Signal, is fed back to controller 132 by the mutation of degree in time, and controller 132 immediately drives driving motor 134 to work so that valve block
120 close, and prevent the sprawling of fire;Simultaneity factor can issue fire signal the buzzer on controller 132, and buzzer carries out
Alarm to avoid hidden danger to remind user to be handled in time.
As shown in figure 3, the valve block 120 includes drive shaft 121, the drive shaft 121 connects the driving motor 134;
The adaptor 135 is sheathed on the outside of drive shaft 121 and the two and can rotate synchronously;The adaptor 135 includes sliding block
1351,134 outside of driving motor is equipped with control box 136, and the control box 136 is equipped with arc chute 1361, the cunning
Block 1351 is located in the arc chute 1361.
As Figure 4-Figure 6, driving motor 134 is connected with drive shaft 121, the two synchronous rotation, by drive shaft 121 with turning
The connection relation of fitting 135, makes the rotation of drive shaft 121 drive adaptor 135 to rotate.Elastic piece 142 has elasticity, works as valve block
After 120 open, elastic deformation occurs for elastic piece 142, and elastic piece 142 is constantly in deformation when the valve block 120 is in open mode
State, valve block 120 can be closed quickly in closing process by elastic acting force, when valve block 120 is closed, valve block
120 more difficult are washed open by flue gas, it is ensured that indoor clean and safety.
As shown in fig. 7,121 side of drive shaft includes the first planar portions 1121, the adaptor 135 includes connecting hole
1352,1352 inner wall of connecting hole forms the second planar portions 1353, first planar portions 1121 and second planar portions
1353 fit;135 side wall of adaptor stretches out two pieces of extensions 1354, the sliding block 1351 with it is one of described
Extension 1354 is detachably connected.
Drive shaft 121 and adaptor 135 have two planar portions to fit, the two is rotated synchronously, and the two
Between be not present gap, stability of rotation, control is accurate, can synchronous drive drive end and switching when driving 134 rotating of motor
Part 135 moves, and there is no error.
Adaptor 135 is symmetrical structure, and sliding block 1351 is detachably connected with extension 1354, makes the adaptor 135 can be with
Used with two kinds of different states.For example, Fig. 4 shows a kind of state, needed on the kitchen ventilator of different model with another kind
State is mounted on another extension 1354 in use, need to only pull down sliding block 1351.
As shown in figure 9,110 sidepiece of valve body includes connection component 114;The connection component 114 includes connecting pole
115th, contiguous block 116 and external piece 117;The connecting pole 115 includes threaded hole, and the contiguous block 116 includes and the screw thread
The matched external thread section 1161 in hole;The contiguous block 116 is further included arranged on the first inclined-plane 1162 of its sidepiece;Described external piece
117 have symmetrical two pieces, and external piece 117 outside be arc structure, external piece 117 inner side including with it is described first oblique
Matched second inclined-plane 1171 in face 1162;External piece 117 outside is equipped with deep gouge 1172, and two described external piece 117 passes through
Elastic ring 118 is connected, and the elastic ring 118 is arranged in the deep gouge 1172;The contiguous block 116 is towards or away from the connection
When column 115 moves, can drive two pieces external piece it is 117 mutually remote or mutually close.
Connection component 114 is also variable-diameter structure.Connecting pole 115 is threadedly coupled with contiguous block 116, and contiguous block 116 can turn
It is dynamic;External piece 117 is two pieces, is movably arranged on the outside of connecting pole 115 and contiguous block 116, the deep gouge 1172 outside external piece 117
Elastic ring 118 is inside clamped, external piece 117 is fastened on outside connecting pole 115 by elastic ring 118.As shown in figure 9, external piece 117
And contiguous block 116 is coordinated by the first inclined-plane 1162 and the second inclined-plane 1171, contiguous block 116 was run in opposite connecting pole 115
External piece 117 can be driven to open or shrink in journey by the effect on inclined-plane, so as to change the outside diameter of whole connection component 114.
Pass through this structure setting so that the both ends of intelligent electric check (non-return) valve 100 can be with the kitchen ventilator phase of different model
Matching, expands its application range.
Embodiment 2.
A kind of 100 installation method of intelligent electric check (non-return) valve, using above-mentioned intelligent electric check (non-return) valve 100, the intelligence electricity
Dynamic check (non-return) valve 100 is installed at the kitchen ventilator air outlet;Valve body 110 includes first end and second end, and clamping ring 113 is arranged on the
One end, first end are sealed and are detachably connected with air hose, and the air outlet of second end and kitchen ventilator is sealed and is detachably connected.
Intelligent electric check (non-return) valve 100 is installed at the air outlet of kitchen ventilator rather than at the mouth of mounting base common flue,
It can be carried out maintenance so that intelligent electric check (non-return) valve 100 need not dismantle furred ceiling in maintenance.
Slot is formed between two neighboring clamping ring 113, is also formed and inserted between the clamping ring 113 and valve body 110 of outmost turns
Groove.The air hose of different bores can be plugged at the slot of diverse location so that the intelligent electric check (non-return) valve 100 can be with difference
Air hose and the kitchen ventilator matching of model, can rapidly realize installation in assembling process.
This intelligent electric check (non-return) valve 100 and its installation method at least have the following advantages that:
First, the intelligent electric check (non-return) valve by varying valve body 110 structure, using the structure and valve body 110 of valve body 110
Built-in temperature sensor 131, not only with the mode of 110 two of valve body all reducing docking so that intelligent electric check (non-return) valve can
It is installed on simplicity at existing any kitchen ventilator air outlet, without using traditional mounting means, first removes resident family kitchen
The mode that the furred ceiling in room is this cumbersome and subsequent maintenance is of high cost installs check (non-return) valve, and when kitchen ventilator is in work shape
State, when fire occurs suddenly for flue the inside, temperature sensor 131 instantaneously senses the mutation of temperature, and signal is fed back in time
Controller 132, the immediately drive motor work of controller 132 so that valve block 120 is closed, and prevents the sprawling of fire;Simultaneity factor
Fire signal can be issued the buzzer on controller 132, buzzer is alarmed to remind user to be handled in time, in order to avoid
Generation hidden danger.
2nd, the intelligent electric check (non-return) valve not only breaks through the control mode of traditional check (non-return) valve, and the service life of product increases
Add, allow the control of product more accurately to work, and the intelligent electric check (non-return) valve is broken through existing check (non-return) valve and be can be only installed at
Limitation and the intelligent electric check (non-return) valve at flue entrance are designed to the structure of reducing docking by the structural change of itself,
Not only can be with check (non-return) valve of the abutting joint at flue entrance, the advantages of bigger is that the kitchen ventilator that may be mounted at any model goes out
At air port, simplicity extremely thus is brought to the installation of whole valve and the maintenance of product, while can also thoroughly prevent
Oil smoke returns string to oneself, and traditional check (non-return) valve and the stronger intelligent electric check (non-return) valve of existing feature can all not pacify
At kitchen ventilator air outlet.
The characteristics of intelligent electric check (non-return) valve not only may be mounted at flue entrance, but also most prominent is exactly to break through tradition
Fixed installation mode, may be mounted at completely at the kitchen ventilator air outlet of any model, that breaks through existing check (non-return) valve can only
The defects of at flue entrance, and it is maximum at the flue entrance the defects of be exactly product installation procedure it is complicated and
Maintenance cost is very high and cannot get the wish of resident family to repair, thus causes whole kitchen the phenomenon that oil smoke returns string persistently occur,
And intelligent electric check (non-return) valve break through existing switching regulator sensing control mode caused by service life it is short the defects of, using sensing skill
Art is strong, the microswitch 141 of service life length is so that the feature and reliability of product substantially exceed all non-return of in the market
Valve, and most prominent is that the intelligent electric check (non-return) valve may be mounted at kitchen ventilator air outlet so that whole product installation and
Safeguard easier.
The foregoing is merely the preferred embodiment of the present invention, is not intended to limit the invention, for this area
For technical staff, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.