CN208107241U - Flute check valve and flue system with it - Google Patents

Abstract

The utility model discloses a kind of flute check valve and with its flue system, the flute check valve includes：Valve body, the valve body is with exhaust gases passes and the exhaust gases passes have gas inlet and exhanst gas outlet；Non-return structure, the non-return structure are set to the valve body and only allow the fluid in the exhaust gases passes along from the gas inlet to the direction one-way flow of the exhanst gas outlet；Distributing fin, the distributing fin are rotatably installed on the valve body to adjust the angle that fluid is flowed out from the exhanst gas outlet.Reverse-filling and fire-proof function can not only be had both according to the flute check valve of the utility model embodiment, and can be distributed according to the smoke evacuation pressure drag of floor, smoke evacuation angle is adjusted, to reduce influencing each other for different floor smoke evacuations, improves smoke exhaust efficiency.

Description

Flute check valve and flue system with it

Technical field

The utility model relates to technical fields of discharging fume, and in particular to a kind of flute check valve and have the flue The flue system of check-valves.

Background technique

Public vertical smoke evacuation system is a kind of current house kitchen commonly vented exhaust mode, and resident cooks the oil generated Cigarette is arranged through range hood to common flue.

Specific flue system 1 ' as shown in Figure 1, the range hood 10 ' in kitchen pass through indoor discharge flue 20 ' with it is public Flue 40 ' is connected to altogether, and oil smoke flows backward in order to prevent, and flue usually is arranged between common flue 40 ' and indoor discharge flue 20 ' Check-valves 30 ', flute check valve 30 ' have non-return structure.When range hood 10 ' works, the air-flow with oil smoke is through interior Discharge flue 20 ' pushes non-return structure open, and oil smoke is arranged to common flue 40 '；When range hood 10 ' stops working, non-return knot Structure is sealed by self-weight reset, prevents the oil smoke of common flue 40 ' from flowing backward into house kitchen.From there through non-return structure, make Flute check valve 30 ' has reverse-filling and fire-proof function.

However, as shown in Figure 1, the non-return structure of flute check valve 30 ' is opened, and oil smoke is arranged when range hood 10 ' works It puts to common flue 40 ', since oil smoke is fluid, is spread around under unconfined state, for example, having part oil smoke flow To the lower section of common flue 40 ', upper-layer user is increased to the smoke evacuation resistance of underlying User, leads to the smoke evacuation resistance of different floors It is unevenly distributed, influences smoke exhaust efficiency.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions A kind of flute check valve out, the flute check valve can not only have both reverse-filling and fire-proof function, and can be according to floor Pressure drag of discharging fume is distributed, and adjusts smoke evacuation angle, to reduce influencing each other for different floors smoke evacuations, improves smoke exhaust efficiency.

The utility model also proposes a kind of flue system with above-mentioned flute check valve.

The embodiment of first aspect according to the present utility model proposes a kind of flute check valve, the flute check valve packet It includes：Valve body, the valve body is with exhaust gases passes and the exhaust gases passes have gas inlet and exhanst gas outlet；Non-return structure, institute Non-return structure is stated set on the valve body and only allows the fluid in the exhaust gases passes along from the gas inlet to the flue gas The direction one-way flow of outlet；Distributing fin, the distributing fin are rotatably installed on the valve body to adjust fluid from institute State the angle of exhanst gas outlet outflow.

Reverse-filling and fire-proof function can not only be had both according to the flute check valve of the utility model embodiment, and can It is distributed according to the smoke evacuation pressure drag of floor, adjusts smoke evacuation angle, to reduce influencing each other for different floor smoke evacuations, improve smoke evacuation effect Rate.

Some specific embodiments according to the present utility model, the non-return structure is set in the exhaust gases passes and neighbouring institute Gas inlet setting is stated, the distributing fin is set to the outer and neighbouring exhanst gas outlet of the exhaust gases passes and is arranged.

Some specific embodiments according to the present utility model, the pivot center of the distributing fin it is horizontally extending and Perpendicular to the axial direction of the exhanst gas outlet.

Further, the angle between the distributing fin and horizontal direction is α, wherein 0 °≤α≤90 °.

Some specific examples according to the present utility model, one in the distributing fin and the valve body is equipped with and pivots Axis and another be equipped with pivoting hole, the pivotal axis is pivotably engages with the pivoting hole.

Some specific examples according to the present utility model, the cross section of the distributing fin are arc or linear.

Some specific embodiments according to the present utility model, the flute check valve further include：Driver, the driver It is sequentially connected set on the valve body and with the distributing fin to drive the distributing fin to rotate.

Further, the flute check valve further includes：Oil smoke sensor, the driver and the oil smoke sensor are logical It interrogates and the distributing fin is controlled according to the testing result of the oil smoke sensor.

Some specific embodiments according to the present utility model, the distributing fin is multiple and interval is set along the vertical direction It sets.

Further, the flute check valve further includes：Connecting rod, the connecting rod can turn with multiple distributing fins respectively It is connected dynamicly so that multiple distributing fins rotate synchronously.

Further, multiple distributing fins spaced set in the up-down direction.

Further, the spacing of multiple distributing fins is gradually increased or is gradually reduced along direction from top to bottom.

Further, the width of multiple distributing fins is equal to each other.

Further, the width of multiple distributing fins is gradually increased or is gradually reduced along direction from top to bottom.

Further, axial direction of the edge of the neighbouring gas inlet of multiple distributing fins in the exhanst gas outlet Upper concordant setting.

Some specific embodiments according to the present utility model, the flute check valve further include：Rectify fin, the rectification Fin is set in the exhaust gases passes and between the non-return structure and the distributing fin, and the rectification fin is parallel to The axial direction of the exhanst gas outlet.

Further, the rectification fin is multiple and interval setting along the vertical direction.

Further, multiple rectification fins spaced set in the up-down direction.

Further, the spacing of multiple rectification fins is gradually increased or is gradually reduced along direction from top to bottom.

Further, axial direction of the edge of the neighbouring gas inlet of multiple rectification fins in the exhanst gas outlet The edge of upper concordant setting, the neighbouring exhanst gas outlet of multiple rectification fins is concordant in the axial direction of the exhanst gas outlet Setting.

Some specific embodiments according to the present utility model, the valve body include：First valve body, the exhaust gases passes and institute It states gas inlet and is formed in first valve body, the non-return structure is set to first valve body；Fixed plate portion, the fixed plate Portion is set to the first valve body and the exhanst gas outlet is formed in the fixed plate portion；Second valve body, second valve body are set to described Fixed plate portion and around the exhanst gas outlet be arranged, the distributing fin be set to the fixed plate portion and/or second valve body.

Further, second valve body along the exhanst gas outlet circumferentially extending and second valve body along its length The midpoint in direction is located at the lowest part of the exhanst gas outlet.

The embodiment of second aspect according to the present utility model proposes that a kind of flue system, the flue system include：Room Interior discharge flue；Common flue；Flute check valve described in the embodiment of first aspect according to the present utility model, the valve body It is connected between the indoor discharge flue and the common flue, the exhaust gases passes pass through the gas inlet and the room Interior discharge flue is connected to and is connected to by the exhanst gas outlet with the common flue.

According to the flue system of the utility model embodiment, pass through the implementation using first aspect according to the present utility model Flute check valve described in example, has many advantages, such as that smoke exhaust efficiency is high.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and is readily appreciated that, wherein：

Fig. 1 is the structural schematic diagram of existing flue system.

Fig. 2 is the left view cross-sectional view according to the flute check valve of the utility model embodiment.

Fig. 3 is the main view according to the flute check valve of the utility model embodiment.

Fig. 4 is the part-structure sectional view according to the flute check valve of the utility model embodiment.

Fig. 5 is the enlarged drawing of a-quadrant in Fig. 4.

Fig. 6 is the part-structure exploded view according to the flute check valve of the utility model embodiment.

Fig. 7 is the perspective view according to the non-return structure of the flute check valve of the utility model embodiment.

Fig. 8 is the side view left view cross-sectional view according to the non-return structure of the flute check valve of the utility model embodiment.

Fig. 9 is the perspective view according to the non-return structure of the flute check valve of the utility model another embodiment.

Figure 10 is the side view left view section view according to the non-return structure of the flute check valve of the utility model another embodiment Figure.

Figure 11 is the perspective view according to the non-return structure of the flute check valve of the utility model further embodiment.

Figure 12 is the side view left view section view according to the non-return structure of the flute check valve of the utility model further embodiment Figure.

Figure 13 is the perspective view according to the flue system of the utility model embodiment.

Figure 14 is the structural schematic diagram according to the flue system of the utility model embodiment.

Appended drawing reference：

The prior art：

Flue system 1 ', range hood 10 ', indoor discharge flue 20 ', flute check valve 30 ', common flue 40 '；

The utility model：

Flue system 1,

Range hood 10, indoor discharge flue 20, flute check valve 30, common flue 40,

Valve body 100, exhaust gases passes 110, gas inlet 120, exhanst gas outlet 130, the first valve body 140, fixed plate portion 150, Second valve body 160, intermediate incline 170, fixed plate 180, connection ring 190,

Non-return structure 200, shaft 210, valve block 220, stop part 230, the first valve block 240, the second valve block 250,

Distributing fin 310, pivotal axis 311, pivoting hole 312, rectification fin 320, connecting rod 330, connecting shaft 331, link slot 332, gap 333,

Driver 400.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " center ", " length ", " width ", "upper", "lower", The side of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axial direction ", " circumferential direction " Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description the utility model and simplification is retouched It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, Therefore it should not be understood as limiting the present invention.In addition, defining " first ", the feature of " second " can be expressed or hidden It include one or more of the features containing ground.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is Two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

Below with reference to the accompanying drawings flute check valve 30 according to the utility model embodiment is described, which can be with For common air flue check valve, i.e. the flute check valve 30 is installed on common flue, is used for indoor flue gas emission to public cigarette Road.

It include valve body 100, non-return structure according to the flute check valve 30 of the utility model embodiment as shown in Fig. 2-Figure 14 200 and distributing fin 310.

Valve body 100 has exhaust gases passes 110, and exhaust gases passes 110 have gas inlet 120 and exhanst gas outlet 130.For example, The exhaust gases passes 110 extended along the longitudinal direction are defined in valve body 100, gas inlet 120 is located at the front end of exhaust gases passes 110, Exhanst gas outlet 130 is located at the rear end of exhaust gases passes 110, such as flue gas fluid can enter exhaust gases passes by gas inlet 120 110, and be discharged along exhaust gases passes 110 from exhanst gas outlet 130.

Non-return structure 200 be set to valve body 100, non-return structure 200 only allows the fluid in exhaust gases passes 110 edge from flue gas into Mouthfuls 120 to exhanst gas outlet 130 direction one-way flow.In other words, such as flue gas fluid can enter cigarette from gas inlet 120 Gas channel 110, and be discharged by non-return structure 200 from exhanst gas outlet 130, but the stream for entering from exhanst gas outlet 130 Body, non-return structure 200 can play the role of blocking, i.e. the fluids such as flue gas can not enter exhaust gases passes 110 from exhanst gas outlet 130 And be discharged from gas inlet 120, non-return structure 200 plays reverse-filling and fireproof function as a result,.

Distributing fin 310 is rotatably installed on valve body 100.Specifically, when there is the fluids such as flue gas from gas inlet 120 When into exhaust gases passes 110, non-return structure 200 is opened, and flue gas is discharged by distributing fin 310 from exhanst gas outlet 130, and works as cigarette When gas passes through distributing fin 310, distributing fin 310 can adjust the channeling direction to air-flow by the rotation of itself, thus Make to flow from the flue gas that exhanst gas outlet 130 flows out to any direction, such as flows upwards.

It can not only be had both anti-according to the flute check valve 30 of the utility model embodiment by the way that non-return structure 200 is arranged Reverse irrigation and fire-proof function, and it is further integrated with rotatable distributing fin 310, to realize diversion function and water conservancy diversion direction It is adjustable, it is possible thereby to be distributed according to the smoke evacuation pressure drag of floor, the angle of distributing fin 310 is adjusted, is weakened between different floors Smoke evacuation influences, and weakens impact loss of the flue gas to common flue, such as flows up the flue gas into common flue, avoids cigarette Gas is spread downwards, and common flue is smoothly discharged in guidance flue gas, and reduces upper-layer user to the smoke evacuation resistance of underlying User, to mention The smoke exhaust efficiency of high common flue entirety.

Therefore, according to the flute check valve of the utility model embodiment 30, while reverse-filling, fire prevention and water conservancy diversion being integrated with Function, water conservancy diversion direction is adjustable.

Below with reference to the accompanying drawings flute check valve 30 according to the utility model specific embodiment is described.

It include valve body 100, non-return structure according to the flute check valve 30 of the utility model embodiment as shown in Fig. 2-Figure 14 200 and distributing fin 310.

Wherein, as shown in figure 3, non-return structure 200 is set in exhaust gases passes 110 and neighbouring gas inlet 120 is arranged, water conservancy diversion Fin 310 is set to the outer and neighbouring exhanst gas outlet 130 of exhaust gases passes 110 and is arranged.I.e. non-return structure 200 is set to exhaust gases passes 110 Front, distributing fin 310 is set to the rear portion of exhaust gases passes 110, so as to improve distributing fin 310 to the diversion effect of flue gas, and Convenient for the rotation of distributing fin 310.

Those skilled in the art is it will be understood that distributing fin 310 refers to water conservancy diversion wing outside exhaust gases passes 110 The most of main structure of piece 310 is set to outside exhaust gases passes 110, and is not excluded for the partial structurtes of distributing fin 310 or in rotation Part-structure protrude into exhaust gases passes 110.

In some specific embodiments of the utility model, as shown in Figure 2 and Figure 4, the pivot center edge of distributing fin 310 Horizontal direction extends and perpendicular to the axial direction of gas inlet 120, i.e. the pivot center of distributing fin 310 extends in left-right direction, So that distributing fin 310 can be spun upside down, angle in the up-down direction after flue gas flows out is adjusted.As shown in Fig. 4, water conservancy diversion The tilt angle relative to horizontal direction of fin 310 be α, 0 °≤α≤90 °, it is preferable that 30 °≤α≤60 °.Water conservancy diversion wing as a result, Piece 310 can rotate around it axis and arbitrarily adjust, and smoke evacuation angle of the flue gas in common flue can be changed in the angle of distributing fin 310 Degree realizes the maximization of common flue smoke exhaust efficiency.

It is to be understood that can be by the planform of setting distributing fin 310, with complete using distributing fin 310 Exhanst gas outlet 130, i.e. α=90 ° are closed, to further prevent oil smoke to flow backward.

Specifically, as shown in fig. 6, one in distributing fin 310 and valve body 100 is equipped with pivotal axis 311, and water conservancy diversion Another in fin 310 and valve body 100 is equipped with pivoting hole 312, and pivotal axis 311 is pivotably engages with pivoting hole 312.

For example, the both ends on the length direction of each distributing fin 310 are respectively equipped with pivotal axis 311, the correspondence of valve body 100 Pivoting hole 312 is arranged in position, so that distributing fin 310 is rotatably fixed to valve body 100, and guarantees 310 turns of distributing fin Stationarity when dynamic.

Optionally, the cross section of distributing fin 310 is arc, the neighbouring common flue of the cross section of distributing fin 310 The tangent line of one end (i.e. rear end), tilt angle relative to horizontal direction are α.

Certainly, the utility model is not limited to this, and the cross section of distributing fin 310 may be linear, i.e. water conservancy diversion wing Piece 310 is plate assembling structure.

In some specific embodiments of the utility model, as shown in Figure 3 and Figure 6, flute check valve 30 further includes driving Device 400 and oil smoke sensor.Driver 400 can be motor, and driver 400 is set to valve body 100, and oil smoke sensor is for detecting Oil smoke amount size, driver 400 and oil smoke sensor communication and is sequentially connected with distributing fin 310, for example, driver 400 with The pivotal axis 311 of distributing fin 310 is sequentially connected, and driver 400 controls distributing fin according to the detection structure of oil smoke sensor 310 rotations.Oil smoke sensor is utilized as a result, distributing fin 310 can be matched according to oil smoke size in actual use Different angle drives distributing fin 310 to rotate, realizes the stepless automatic adjustment of 310 angle of distributing fin by driver 400, To realize the maximization of common flue smoke exhaust efficiency.

For example, when user's cooking oil smoke is larger, oil smoke sensor detects that oil smoke amount is larger, to driver 400 issue the regulating command for reducing angle, and the angle α between distributing fin 310 and horizontal direction becomes smaller, and reduce range hood Smoke evacuation resistance, promoted smoking effect.And when user's cooking oil smoke is smaller, oil smoke sensor detects that oil smoke amount is smaller, The regulating command for increasing angle is issued to driver 400, the angle α between distributing fin 310 and horizontal direction increases, oil smoke row The resistance of underlying User is reduced when entering common flue, improves the smoke exhaust efficiency of entire common flue.

Certainly, the rotation of the flute check valve 30 of the utility model, distributing fin 310 can also manually adjust, this It is within the protection scope of the utility model.

In some specific examples of the utility model, as shown in figs 2-4, distributing fin 310 is multiple and vertically The setting of direction interval.Specifically, each distributing fin 310 extends in left-right direction, i.e. the length direction edge of distributing fin 310 Left and right directions orientation, multiple distributing fins 310 are spaced setting along the vertical direction.Multiple distributing fins 310 are utilized as a result, are improved To the guidance amount and boot efficiency of the fluids such as flue gas.

Further, flute check valve 30 further includes connecting rod 330.Connecting rod 330 can be rotated with multiple distributing fins 310 respectively Ground is connected, so that multiple distributing fins 310 rotate synchronously.In this way, on the one hand can guarantee the rotation of multiple distributing fins 310 Angle is identical, guarantees the consistency in water conservancy diversion direction, on the other hand can drive in order to driver 400, i.e., driver 400 only needs to drive A distributing fin 310 is moved, the synchronous driving to multiple distributing fins 310 can be realized.

For example, as shown in fig. 6, the both ends of distributing fin 310 are respectively equipped with connecting shaft 331, it is noted here that ground It is that, since the length of multiple distributing fins 310 may be different, the connecting shaft 331 on some distributing fins 310 can be simultaneously It is not located at end, such as longest distributing fin 310 shown in Fig. 6, is provided with gap 333, connecting shaft 331 is located at should In gap 333.Connecting rod 330 is two and is distributed in the both ends of distributing fin 310, is provided with link slot 332 on connecting rod 330, should Link slot 332 can be configured to major arc structure, can guarantee the reliability of connection, connecting shaft 331 while in order to install again It is accordingly matched with link slot 332, to realize being rotatably connected for distributing fin 310 and connecting rod 330, and can be guaranteed more Stability of a distributing fin 310 when rotating synchronously.

In some specific examples of the utility model, as shown in figs 2-4, multiple distributing fins 310 are in above-below direction Upper spaced set, i.e. the distance between adjacent guide fin 310 are equal, and multiple distributing fins 310 are uniform in the up-down direction Distribution.Certainly, the spacing of multiple distributing fins 310 can also be gradually increased or be gradually reduced along direction from top to bottom.

Preferably, multiple distributing fins 310 are uniformly distributed in the up-down direction, to improve the uniformity of water conservancy diversion.

Optionally, the width of multiple distributing fins 310 is equal to each other, and the width of distributing fin 310 is substantially along front and back Direction and the size extended with the shape of the cross section of distributing fin 310.Certainly, the width of multiple distributing fins 310 can also be with It is gradually increased or is gradually reduced along direction from top to bottom.

Preferably, the width of multiple distributing fins 310 is gradually increased along direction from top to bottom, with the row of further preventing to The flue gas of common flue is spread downwards.

Along the embodiment that the direction of the width edge of multiple distributing fins 310 from top to bottom is gradually increased or is gradually reduced, The edge of the neighbouring gas inlet 120 of multiple distributing fins 310 is concordantly arranged in the axial direction of exhanst gas outlet 130.It is i.e. multiple to lead The front end for flowing the cross section of fin 310 is concordantly arranged in the longitudinal direction.

In some specific examples of the utility model, as shown in Fig. 2-Fig. 4 and Fig. 6, flute check valve 30 further includes whole Flow fin 320.It rectifies fin 320 to be set in exhaust gases passes 110, and is located axially at non-return structure 200 in exhaust gases passes 110 Between distributing fin 310, rectification fin 320 is parallel to the axial direction of exhanst gas outlet 130.In this way, the oil smoke in exhaust gases passes 110 Rectification fin 320 is first passed around, is rectified by rectification fin 320, reduces the vortex in soot gas, then by distributing fin 310 Import common flue.

Wherein, the front side of fin 320 is rectified along can be configured to substantially taper, to reduce windage, such as rectification fin 320 It can be configured to streamlined.Certain angle can also be had with the axial direction of exhanst gas outlet 130 by rectifying fin 320.Rectify fin 320 It can be integrally formed with valve body 100, can also be separately formed and be assembled again.

Further, in order to further increase rectification effect, rectification fin 320 is multiple and interval is set along the vertical direction It sets.

In some specific examples of the utility model, as shown in Fig. 2-Fig. 4 and Fig. 6, multiple rectification fins 320 are upper and lower Spaced set on direction, i.e., the distance between adjacent rectification fin 320 is equal, and multiple rectification fins 320 are in the up-down direction It is uniformly distributed.Certainly, the spacing of multiple rectification fins 320 can also be gradually increased or be gradually reduced along direction from top to bottom.

Preferably, multiple rectification fins 320 are uniformly distributed in the up-down direction, to improve the uniformity of water conservancy diversion.

Wherein, in order to further increase rectification effect, the edge of the neighbouring gas inlet 120 of multiple rectification fins 320 exists Concordantly it is arranged in the axial direction of exhanst gas outlet 120, the edge of the neighbouring exhanst gas outlet 130 of multiple rectification fins 320 is in exhanst gas outlet Concordantly it is arranged in 130 axial direction.

In some specific embodiments of the utility model, as shown in Fig. 2-Fig. 6, valve body 100 include the first valve body 140, Fixed plate portion 150 and the second valve body 160.

For first valve body 140 for discharge flue in junction chamber, exhaust gases passes 110 and gas inlet 120 are formed in the first valve Body 140, non-return structure 200 are set to the first valve body 140.Fixed plate portion 150 is set to the first valve body 140, and is suitable for being fixed on wall On, exhanst gas outlet 130 is formed in fixed plate portion 150.Second valve body 160 is set to fixed plate portion 150, connects for connecting common flue Mouthful, the second valve body 160 is arranged around exhanst gas outlet 130, and distributing fin 310 is set to fixed plate portion 150 and/or the second valve body 160, For example, distributing fin 310 can be set to the second valve body 160.Valve body 100 is as a result, convenient for connection discharge flue and public indoors It between flue, and can be formed, be produced more convenient with piecemeal.

Specifically, as shown in Figures 2 and 3, the first valve body 140 is configured to the tubular of both ends open, the first valve body 140 one end forms gas inlet 120, and fixed plate portion 150 is set to the other end of the first valve body 140.For example, gas inlet 120 It is formed in the front end of the first valve body 140, fixed plate portion 150 is set to the rear end of the first valve body 140, and the second valve body 160, which is set to, to be fixed The side back to the first valve body 140 in plate portion 150, i.e. fixed plate portion 150 are located at the first valve body 140 and second in the longitudinal direction Between valve body 160.

More specifically, as shown in figure 4, fixed plate portion 150 includes fixed plate 180 and connection ring 190.

Fixed plate 180 is suitable for being fixed on wall.Connection ring 190 is set to fixed plate 180, such as before fixed plate 180 Surface, connection ring 190 are connected with the other end (rear end) of the first valve body 140.Rectification fin 320 is set to connection ring 190 Inner peripheral surface, driver 400 is set to the rear surface of fixed plate 180.

Wherein, fixed plate 180 can be integrally formed with the second valve body 160, to improve structural strength, simplify assembly technology, It can be detachably connected between first valve body 140 and fixed plate portion 150, to pass through the first valve body 140 of disassembly and fixed plate Portion 150, so that non-return structure 200 and distributing fin 310 separate, and then easy to repair and cleaning.

In some specific examples of the utility model, as shown in Figure 4 and Figure 5, since common flue interface is usually less than Indoor exit flue, therefore, the interior diameter of the second valve body 160 are less than the interior diameter in fixed plate portion 150, are connect with adapting to common flue Mouthful and indoor exit flue difference in internal diameters, guarantee the leakproofness that valve body 100 connects, also, the inner peripheral surface of the second valve body 160 with Intermediate incline 170 is configured between the inner peripheral surface in fixed plate portion 150, so that the air-flow smooth transition flowed through, reduces the resistance of air-flow Power.

Specifically, as shown in Figure 2 and Figure 4, circumferentially extending of second valve body 160 along exhanst gas outlet 130, the second valve body The midpoint of 160 length direction along the second valve body 160 is located at the lowest part of exhanst gas outlet 130.That is, the second valve body 160 since the lowest part of exhanst gas outlet 130, and circumferential direction of the both ends respectively along exhanst gas outlet 130 upwardly extends, distributing fin 310 Both ends be rotationally connected with the second valve body 160 respectively.Second valve body 160 play the role of connect common flue interface it is same When, it can also play the role of preventing flue gas from spreading downwards, and the structural strength of distributing fin 310 can be reinforced.

Optionally, as shown in figure 4, maximum width of second valve body 160 in the axial direction (front-rear direction) of exhanst gas outlet 130 For b, 0mm < b < 100mm.It can not only guarantee the reliability connecting with common flue interface as a result, but also can guarantee to air-flow Guidance and to the protecting effect of distributing fin 310.

In some specific embodiments of the utility model, as shown in Fig. 7-Figure 12, non-return structure 200 include shaft 210, Valve block 220 and stop part 230.

Shaft 210 is set in exhaust gases passes 110, such as is installed on the first valve body 140.Valve block 220 is connected to shaft 210, valve block 220 is rotatably arranged in exhaust gases passes 110 by shaft 210.Stop part 230 is set in exhaust gases passes 110, only 230 backstop of block piece is in the side towards gas inlet 120 of valve block 220.Valve block 220 is configured to by flowing from gas inlet 120 It opens to the fluid of exhanst gas outlet 130 and is closed by self gravity.

Specifically, air-flow can push valve block open after having the fluids such as flue gas to enter exhaust gases passes 110 from gas inlet 120 220, so that valve block 220 is opened exhaust gases passes 110, flue gas drains into common flue by exhanst gas outlet 130.When do not have the fluids such as flue gas from When gas inlet 120 enters exhaust gases passes 110, valve block 220 resets under the effect of gravity, to close exhaust gases passes 110, And the backstop due to valve block 220 by stop part 230 at this time, even if the flue gas in common flue enters cigarette from exhanst gas outlet 130 Gas channel 110 can not also push valve block 220 open, to play reverse-filling and fireproof function.

In some specific examples of the utility model, as shown in Figure 7 and Figure 8, shaft 210 is horizontally extending and position In the top of exhaust gases passes 110, i.e. the top that is located at the midpoint of 110 up and down direction of exhaust gases passes of shaft 210, valve block 220 is one The shape adaptation of the cross section of a entirety and shape and exhaust gases passes 110, it is for example, round, thus constitute the non-return knot of single valve piece Structure.

In other specific examples of the utility model, as shown in Fig. 9-Figure 12, shaft 210 is vertically extended, The shape adaptation of the cross section of the shape and exhaust gases passes 110 of valve block 220, valve block 220 are split type, including the first valve block 240 With the second valve block 250, for example, the first valve block 240 and the second valve block 250 are respectively semicircle, the first valve block 240 and the second valve Piece 250 is rotatably arranged in exhaust gases passes 110 by shared shaft 210 respectively, and circular piece is formed when the two is closed with altogether With exhaust gases passes 110 are closed, double valve sheet non-return structure is thus constituted.

Optionally, as shown in Figure 9 and Figure 10, the first valve block 240 and the second valve block 250 are tabular, when air-flow passes through Resistance it is smaller, and be evenly distributed.

Preferably, as is illustrated by figs. 11 and 12, the first valve block 240 and the second valve block 250 are respectively to gas inlet 120 Side is protruded spherical, i.e. the first valve block 240 and the second valve block 250 are respectively configured to streamlined, when 240 He of the first valve block When second valve block 250 is opened, the two is engaged and is integrally formed the structure of outer surface streamlining, and not only distribution is equal when air-flow passes through It is even, resistance is smaller, and can reduce when air-flow passes through generate fluid separation, in addition, by the first valve block 240 and the second valve The air-flow of piece 250 is more favorable for the guidance of distributing fin 310, to further increase diversion effect.

Below with reference to the accompanying drawings flue system 1 according to the utility model embodiment is described.

It as shown in Figure 13 and Figure 14, include indoor discharge flue 20 according to the flue system of the utility model embodiment 1, public Flue 40 and flute check valve 30 altogether.

Indoor discharge flue 20 is set to interior, such as in kitchen.Common flue 40 can vertically extend.Flue stops The valve body 100 for returning valve 30 is connected between indoor discharge flue 20 and common flue 40, and exhaust gases passes 110 pass through gas inlet 120 are connected to indoor discharge flue 20, and exhaust gases passes 110 are connected to by exhanst gas outlet 130 with common flue 40.

In some specific examples of the utility model, indoor discharge flue 20 is suitable for being connected with range hood 10, valve body 100 are installed on the wall between indoor discharge flue 20 and common flue 40, to fix flute check valve 30.

According to the flue system 1 of the utility model embodiment, by utilizing the cigarette according to the utility model above-described embodiment Road check-valves 30 not only has both flue gas reverse irrigation and fire-proof function, but also can reduce smoke evacuation of the upper-layer user to underlying User Resistance, to have many advantages, such as that smoke exhaust efficiency is high.

According to other of the flute check valve 30 of the utility model embodiment and flue system 1 constitute and operate etc. for All be for those of ordinary skill in the art it is known, be not detailed herein.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that： These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims (23)

1. a kind of flute check valve, which is characterized in that including：

Valve body, the valve body is with exhaust gases passes and the exhaust gases passes have gas inlet and exhanst gas outlet；

Non-return structure, the non-return structure are set to the valve body and only allow fluid in the exhaust gases passes along from the flue gas Import to the exhanst gas outlet direction one-way flow；

Distributing fin, the distributing fin are rotatably installed on what the valve body was flowed out to adjust fluid from the exhanst gas outlet Angle.

2. flute check valve according to claim 1, which is characterized in that the non-return structure is set in the exhaust gases passes And the neighbouring gas inlet is arranged, the distributing fin is set to the outer and neighbouring exhanst gas outlet of the exhaust gases passes and is arranged.

3. flute check valve according to claim 1, which is characterized in that the pivot center of the distributing fin is along level side To extension and perpendicular to the axial direction of the exhanst gas outlet.

4. flute check valve according to claim 3, which is characterized in that the folder between the distributing fin and horizontal direction Angle is α, wherein 0 °≤α≤90 °.

5. flute check valve according to claim 1, which is characterized in that one in the distributing fin and the valve body It is equipped with pivotal axis and another is equipped with pivoting hole, the pivotal axis is pivotably engages with the pivoting hole.

6. flute check valve according to claim 1, which is characterized in that the cross section of the distributing fin is for arc or directly It is linear.

7. flute check valve according to claim 1, which is characterized in that further include：

Driver, the driver are set to the valve body and are sequentially connected with the distributing fin to drive the distributing fin to turn It is dynamic.

8. flute check valve according to claim 7, which is characterized in that further include：

Oil smoke sensor, the driver is with the oil smoke sensor communication and according to the testing result control of the oil smoke sensor Make the distributing fin.

9. flute check valve according to claim 1, which is characterized in that the distributing fin is multiple and along the vertical direction Interval setting.

10. flute check valve according to claim 9, which is characterized in that further include：

Connecting rod, the connecting rod are rotationally connected respectively so that synchronous turn of multiple distributing fins with multiple distributing fins It is dynamic.

11. flute check valve according to claim 9, which is characterized in that multiple distributing fins are in the up-down direction Spaced set.

12. flute check valve according to claim 9, which is characterized in that the spacing of multiple distributing fins is along from upper Direction under is gradually increased or is gradually reduced.

13. flute check valve according to claim 9, which is characterized in that the width of multiple distributing fins phase each other Deng.

14. flute check valve according to claim 9, which is characterized in that the width of multiple distributing fins is along from upper Direction under is gradually increased or is gradually reduced.

15. flute check valve according to claim 14, which is characterized in that the neighbouring cigarette of multiple distributing fins The edge of gas import is concordantly arranged in the axial direction of the exhanst gas outlet.

16. flute check valve according to claim 1, which is characterized in that further include：

Rectify fin, the rectification fin be set in the exhaust gases passes and positioned at the non-return structure and the distributing fin it Between, the rectification fin is parallel to the axial direction of the exhanst gas outlet.

17. flute check valve according to claim 16, which is characterized in that the rectification fin is multiple and vertically square It is arranged to interval.

18. flute check valve according to claim 17, which is characterized in that multiple rectification fins are in the up-down direction Spaced set.

19. flute check valve according to claim 17, which is characterized in that the spacing of multiple rectification fins are along from upper Direction under is gradually increased or is gradually reduced.

20. flute check valve according to claim 17, which is characterized in that the neighbouring cigarette of multiple rectification fins The edge of gas import is concordantly arranged in the axial direction of the exhanst gas outlet, the neighbouring exhanst gas outlet of multiple rectification fins Edge be concordantly arranged in the axial direction of the exhanst gas outlet.

21. flute check valve described in any one of -20 according to claim 1, which is characterized in that the valve body includes：

First valve body, the exhaust gases passes and the gas inlet are formed in first valve body, and the non-return structure is set to institute State the first valve body；

Fixed plate portion, the fixed plate portion is set to the first valve body and the exhanst gas outlet is formed in the fixed plate portion；

Second valve body, second valve body are set to the fixed plate portion and are arranged around the exhanst gas outlet, and the distributing fin is set In the fixed plate portion and/or second valve body.

22. flute check valve according to claim 21, which is characterized in that second valve body is along the exhanst gas outlet The midpoint along its length of circumferentially extending and second valve body is located at the lowest part of the exhanst gas outlet.

23. a kind of flue system, which is characterized in that including：

Indoor discharge flue；

Common flue；

Flute check valve described in any one of -22 according to claim 1, the valve body be connected to the indoor discharge flue and Between the common flue, the exhaust gases passes are connected to and with the indoor discharge flue by described by the gas inlet Exhanst gas outlet is connected to the common flue.