CN209354667U - Ventilating system and its wind valve structure - Google Patents

Abstract

The utility model provides a kind of ventilating system and its wind valve structure.The wind valve structure includes air valve blades；The air valve blades include: two vane plates, and the vane plate includes mounting plate and the alice and lapping plate for being set to the mounting plate two sides；And shaft, for installing two vane plates, described two vane plates are symmetrical about the spindle central, enclose the alice and the lapping plate and are set as overlap joint chamber, and the alice is directed away from the direction tilting of the lapping plate.The overlap joint chamber of air valve blades can guarantee sealing effect when overlap joint, seal without using sealing element, reduce the leakage rate of ventilating system, to reduce loss, save cost.

Description

Ventilating system and its wind valve structure

Technical field

The utility model relates to ventilation equipment technical fields, more particularly to a kind of ventilation equipment and its wind valve structure.

Background technique

Currently, the sealing of subway ventilating system and all types of industries, civilian air valve blades is all made of silicone rubber seal or not The steel diaphragm seal that becomes rusty seals, and diaphragm seal is easy aging deformation and loses sealing effect, causes sealing effect bad, the amount of leakage of air-valve Greatly.

In general, realizing the sealing of air-valve using air valve blades bridging arrangement, usually installs additional and seal at air valve blades edge Part, such as metal sealing item or rubber weather strip.Blade position adjacent after closing can simply overlap, and lean on sealing element To realize sealing function.But the sealing element on above-mentioned air valve blades bridging arrangement there are it is easily-deformable, damage etc. cause it is durable Spend it is low, to influence the sealing effect of valve body.

Utility model content

Based on this, it is necessary to for the sealing element on current air valve blades bridging arrangement there are it is easily-deformable, damage cause it is close The problem for sealing effect difference provides a kind of ventilating system and its wind valve structure that can guarantee sealing effect without using sealing element.

Above-mentioned purpose is achieved through the following technical solutions:

A kind of wind valve structure, including air valve blades；The air valve blades include:

Two vane plates, the vane plate include mounting plate and the alice and overlap joint for being set to the mounting plate two sides Plate；And

Shaft, for installing two vane plates, described two vane plates are symmetrical about the spindle central, make described Alice and the lapping plate, which enclose, is set as overlap joint chamber, and the alice is directed away from the direction tilting of the lapping plate.

The wind valve structure including an air valve blades and is located at the wind valve structure two in one of the embodiments, Two L-type baffles of side, when the air valve blades are closed, the L-type baffle protrudes into the overlap joint chamber of the air valve blades, And it is abutted with the lapping plate.

The wind valve structure includes at least two air valve blades for mutually overlapping connection, phase in one of the embodiments, When two adjacent air valve blades overlap, the lapping plate of one of them air valve blades can protrude into another air-valve The overlap joint chamber of blade, and abutted with the lapping plate of another air valve blades.

The junction of the mounting plate and the shaft is arranged in bending in one of the embodiments, and the peace The bending place of loading board is directed away from the direction protrusion of the shaft.

The mounting plate of two bendings encloses the installation chamber for being set as diamond shape, the shaft in one of the embodiments, It is abutted with the inner wall of the installation chamber.

In one of the embodiments, in each air valve blades, the quantity of the shaft is two, is turned described in two There are spacing in the axial ends of the vane plate, and between two shafts for axle position.

The shaft includes cylindrical section and the diamond that connect with the cylindrical section in one of the embodiments, described Cylindrical section is installed on the installation chamber, and the diamond exposes the air valve blades, for turning with the air valve blades are driven Dynamic transmission mechanism and actuator connection.

The mounting plate, the alice and the lapping plate are structure as a whole in one of the embodiments,.

The edge of the alice is less than the edge of the lapping plate to the distance of the shaft in one of the embodiments, To the distance of the shaft；

Angular range between the alice and the lapping plate is 20 °~60 °；

The length that the alice is projected on the lapping plate is the 1/3~3/4 of the lapping plate length；

The lapping plate is arranged in tabular；

Alternatively, the lapping plate bending is arranged at least once.

A kind of ventilating system, including the wind valve structure as described in any of the above-described technical characteristic.

After adopting the above technical scheme, the utility model at least has the following technical effect that

The ventilating system and its wind valve structure of the utility model, two vane plates are installed on shaft in a manner of central symmetry Afterwards, alice and lapping plate is made to form the overlap joint chamber for sealing, and the air-valve chamber of air valve blades two sides is about spindle central Symmetrically.When two adjacent air valve blades overlap connection, the lapping plate of one of air valve blades can protrude into another air-valve leaf In the overlap joint chamber that the lapping plate and alice of piece are formed, also, the lapping plate of one of air valve blades and another air valve blades Lapping plate abut, so that two lapping plates is fitted.In this way, the overlap joint junction of two air valve blades forms mazy sealing Structure.There are easily-deformable, damages to lead to poor sealing effect for sealing element on the current air valve blades bridging arrangement of effective solution Problem.Since the wind valve structure of the utility model is guaranteed by the labyrinth seal structure of adjacent Liang Ge air valve blades lap-joint Sealing effect when overlap joint seals without using sealing element, reduces the leakage rate of ventilating system, to reduce loss, saves cost.

Detailed description of the invention

Fig. 1 is the side view of the wind valve structure apoplexy valve blade of an embodiment of the present invention；

Fig. 2 is the top view of air valve blades shown in FIG. 1；

Fig. 3 is the decomposition diagram of two vane plates in air valve blades shown in FIG. 1；

Fig. 4 is structural schematic diagram when air valve blades shown in FIG. 1 overlap；

Fig. 5 is the partial enlarged view at A shown in Fig. 4.

Wherein:

100- wind valve structure；

110- air valve blades；

111- vane plate；

1111- mounting plate；

1112- lapping plate；

1113- alice；

112- shaft；

113- overlaps chamber.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, by the following examples, it and ties Attached drawing is closed, the ventilating system and its wind valve structure of the utility model are further elaborated.It should be appreciated that this place is retouched The specific embodiment stated only to explain the utility model, is not used to limit the utility model.

It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object, Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and It is indirectly connected with (connection).In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", The orientation or position of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise " Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, and It is not that the device of indication or suggestion meaning or element 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 the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down " It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

Referring to Fig. 1 to Fig. 5, the utility model provides a kind of wind valve structure 100.The wind valve structure 100 is applied to ventilation In system.It should be understood that the ventilating system can be subway ventilating system, or the ventilation of industry, civil plant etc. System.Realize that the air-supply passage of ventilating system is on and off by wind valve structure 100, to realize ventilation function.This reality It can guarantee sealing effect when overlap joint with novel wind valve structure 100, be sealed without using sealing element, reduce ventilating system Leakage rate saves cost to reduce loss.

In one embodiment, wind valve structure 100 includes at least two air valve blades 110 for mutually overlapping connection.Adjacent When two overlap joint connections of air valve blades 110, wind valve structure 100 is in close state.At this point, air valve blades 110 stop air-flow, gas Stream can not be sent out.Adjacent two 110 phases of air valve blades separation, wind valve structure 100 are in the open state.At this point, air-flow can be with It is sent out by the channel between two neighboring air valve blades 110.It should be understood that the number of 100 apoplexy valve blade 110 of wind valve structure Amount can be configured according to the actual size of the air-supply passage of ventilating system.

In addition, wind valve structure 100 further includes the structures such as mounting base, transmission mechanism and actuator, air valve blades 110 be can be rotated Ground is installed in mounting base, and is connect with transmission mechanism and actuator.Transmission mechanism and actuator can drive air-valve leaf when acting Piece 110 rotates, so that air valve blades 110 are in the open state or closed state.It should be understood that wind valve structure 100 removes air-valve Other structures outside blade 110 are the prior art, be will not repeat them here.

Specifically, air valve blades 110 include two vane plates 111 and shaft 112.Vane plate 111 includes mounting plate 1111 and it is set to the alice 1113 and lapping plate 1112 of 1111 two sides of mounting plate.Shaft 112 is for installing two blades Plate 111, two vane plates 111 enclose alice 1113 and lapping plate 1112 and are set as overlap joint chamber about 112 central symmetry of shaft 113, and alice 1113 is directed away from the direction tilting of lapping plate 1112.When two adjacent air valve blades 110 overlap, wherein one The lapping plate 1112 of a air valve blades 110 can protrude into the overlap joint chamber 113 of another air valve blades 110, and with another air valve blades 110 lapping plate 1112 abuts.

The shape of two vane plates 111 is identical.Each vane plate 111 all includes at least mounting plate 1111, alice 1113 and lapping plate 1112.One end of mounting plate 1111 is connect with alice 1113, the other end and lapping plate of mounting plate 1111 1112 connections.Also, the free end of one end, that is, alice 1113 of the alice 1113 far from mounting plate 1111 is relative to mounting plate 1111 It tilts.Further, using the surface where lapping plate 1112 as benchmark face, the free end of alice 1113 is directed away from datum level Direction extends.

Moreover, two vane plates 111 are installed in shaft 112 in a manner of central symmetry.That is, two vane plates 111 be the setting that is centrosymmetric about shaft 112.After two vane plates 111 form air valve blades 110, air valve blades 110 The structure of two sides is identical, and about 112 central symmetry of shaft.Specifically, after two 111 pairing of vane plate installations, two blades The mounting plate 1111 of plate 111, which encloses, is set as installation chamber, and the installation chamber is for installing shaft 112.Also, one of vane plate The lapping plate 1112 of the corresponding another vane plate 111 of 111 alice 1113, the lapping plate 1112 of one of vane plate 111 are corresponding The alice 1113 of another vane plate 111.

As shown in Figure 1 and Figure 5, after the alice 1113 of two vane plates 111 in the same side is tilted relative to lapping plate 1112, shape At similar to Y-shaped structure.That is, the cavity of Y-shaped structure is overlap joint chamber 113.The overlap joint chamber 113 be used for it is another The overlap joint chamber 113 of one air valve blades 110 matches, and forms sealing labyrinth formula structure.Specifically, when wind valve structure 100 is closed, Two adjacent air valve blades 110 overlap connection.Specifically, the lapping plate 1112 of vane plate 111 is inserted into adjacent air valve blades In 110 overlap joint chamber 113, and fit with the lapping plate 1112 of adjacent air valve blades 110.At this point, two be bonded to each other The two sides of lapping plate 1112 all have alice 1113.

If the top in direction shown in Fig. 4 is the front of air valve blades 110, wind stream is born in the front of air valve blades 110. After adjacent two air valve blades 110 overlap joint, if air-flow is needed from forward direction across lap-joint, air-flow needs to be introduced into top Overlap joint chamber 113 between alice 1113 and lapping plate 1112, then turn into the gap between two lapping plates 1112, then The overlap joint chamber 113 that the alice 1113 and lapping plate 1112 for entering back into lower section are formed, outflow of finally turning again.It can be seen that taking Meeting place has the similar mazy sealing structure of multiple tortuous formation, to guarantee sealing effect.

When air valve blades 110 are in close state, at this point, wind stream can flow to respectively air-valve by mounting plate 1111 The lap-joint of 110 two sides of blade.When fraction on mounting plate 1111 flows to the left, air-flow can be imported into the overlap joint of lap-joint In chamber 113.Air-flow is when by overlapping labyrinth gap tortuous at chamber 113, extension and lap cavity due to runner The abrupt turn designed in room 113, air-flow and flow path wall, air-flow internal friction increase, and laminar flow stability is destroyed, air-flow flowing Resistance increases, to generate throttle effect, reduces amount of leakage accordingly.

The fraction of mounting plate 1111 moves right, after air-flow moves to alice 1113 along mounting plate 1111, air-flow Turbulent flow can be formed at the edge tip of alice 1113.After air-flow forms turbulent flow, the inside particle movement direction of air-flow is from system One becomes dissipating, to generate air-flow internal energy loss, airflow kinetic energy is caused to reduce, and is presented as flow velocity reduction, and to by phase The air-flow that adjacent 110 water conservancy diversion of air valve blades comes forms resistance.

In this way, dispersed in nearly 110 region of air valve blades and the air-flow of reduction of speed can generate a kind of air film effect, from And the air-flow for blowing to air valve blades 110 is caused further to influence, reducing air-flow enters lap-joint, to guarantee sealing effect Fruit.

The air valve blades 110 of the utility model form overlap joint chamber 113 using alice 1113 and lapping plate 1112, when adjacent Two air valve blades 110 overlap connection when, the lapping plate 1112 of one of air valve blades 110 can protrude into another air valve blades In the overlap joint chamber 113 that 110 lapping plate 1112 and alice 1113 is formed, also, the lapping plate of one of air valve blades 110 1112 abut with the lapping plate 1112 of another air valve blades 110, and two lapping plates 1112 is made to fit.In this way, two air-valve leaves The overlap joint junction of piece 110 forms mazy sealing structure.Sealing on the current air valve blades bridging arrangement of effective solution Part has that easily-deformable, damage leads to poor sealing effect.Since the wind valve structure 100 of the utility model passes through adjacent two The labyrinth seal structure of a 110 lap-joint of air valve blades guarantees sealing effect when overlap joint, seals, subtracts without using sealing element The leakage rate of few ventilating system.Moreover, air-valve knot can be reduced by forming overlap joint chamber 113 using alice 1113 and lapping plate 1112 Structure 100 whole cost and complexity, reduce use and maintenance difficulty, at the same also reduce the comprehensive use of user at This.

Certainly, in another embodiment of the utility model, wind valve structure 100 can also only include an air valve blades 110.At this point, wind valve structure 100 further includes the L-type baffle positioned at 110 two sides of air valve blades.When air valve blades 110 are closed, L-type Baffle can protrude into the overlap joint chamber 113 of air valve blades 110, and abut with lapping plate 1112.In this way, due to L-type baffle with take The abutting of fishplate bar 1112 is bonded, and alice 1113 can also stop air-flow, guarantees sealing effect.

It should be understood that when carrying out shiplap joint sealed type, the air valve blades of marginal position using at least two air valve blades 110 1110 are sealed also by L-type baffle.

In one embodiment, the central region of mounting plate 1111 has the first mounting hole, and the edge of mounting plate 1111 has Second mounting hole, wind valve structure 100 include the first installation part and the second installation part.First installation part wears mounting plate 1111 First mounting hole is connect with shaft 112, and the second installation part wears second mounting hole of two mounting plates 1111, to fix two peaces Loading board 1111.Illustratively, the first installation part and the second installation part can be screw element or be that other realize fixed structure. After mounting plate 1111 is installed on shaft 112 by the first installation part, it is ensured that shaft 112 drives two vane plates 111 synchronous Rotation guarantees the reliability of torsion transmitting when air valve blades 110 rotate.And two mounting plates 1111 are connected by the second installation part Fixation is connect, reliability when guaranteeing that air valve blades 110 work avoids influencing air-flow flowing.

In one embodiment, the junction of mounting plate 1111 and shaft 112 is arranged in bending, and mounting plate 1111 is curved The direction protrusion of shaft 112 is directed away from folding.That is, mounting plate 1111 is arranged in blunt form.In this way, mounting plate Air-flow at 110 front of air valve blades can be divided into two-way flowing by 1111 bending place, and air-flow is allowed to be divided into two-way. Moreover, the mounting plate 1111 of bending can drive mounting plate 1111 to move in order to shaft 112.In this way, shaft 112 and mounting plate 1111 inner wall abuts, and shaft 112 can drive mounting plate 1111 to move synchronously when rotating, and avoids shaft 112 and mounting plate 1111 Between occur relative motion, guarantee that torsion transmitting is accurate.

Referring to Fig. 5, further, the mounting plate 1111 of two bendings encloses the installation chamber for being set as diamond shape, shaft 112 and peace Behave affectedly room inner wall abut.It should be understood that mounting plate 1111 is arranged in class V-shape.When two 1111 pairings of mounting plate are installed Afterwards, the space after the bending of two mounting plates 1111 forms the installation chamber of diamond shape.After shaft 112 to installation chamber, shaft 112 Outer wall with installation chamber inner wall abuts, in this way, shaft 112 can drive mounting plate 1111 synchronous rotation, avoid shaft 112 Occur to skid and generate relative motion between mounting plate 1111, guarantees that torsion transmitting is accurate.

Specifically, the positive air-flow of air valve blades 110 can be divided into two parts by the mounting plate 1111 of diamond shape installation chamber, A part of air-flow enters overlap joint chamber 113 with the diamond shape slope of vane plate 111 to the left, and another part air-flow is with vane plate 111 diamond shape slope flow to alice 1113.

Optionally, the setting cylindrical of shaft 112.After shaft 112 is installed to installation chamber, air valve blades 110 and shaft 112 constitute square-outside and round-inside structure.It can be convenient the assembling of air valve blades 110 in this way, debugged convenient for leakproofness, simultaneously, additionally it is possible to Guarantee the reliability of torsion transmitting when air valve blades 110 rotate.

Certainly, in another embodiment of the utility model, shaft 112 includes cylindrical section and the diamond shape connecting with cylindrical section Section, cylindrical section are installed on installation chamber, and diamond exposes air valve blades 110, the transmission for rotating with driving air valve blades 110 Mechanism and actuator connection.In this way, cylindrical section can closely cooperate with installation chamber, guarantee to turn round when air valve blades 110 rotate The reliability of power transmitting.

In one embodiment, in each air valve blades 110, the quantity of shaft 112 is two, and two shafts 112 are located at leaf The axial ends of sheet 111, and there are spacing between two shafts 112.That is, air valve blades 110 are turned by both ends Axis 112 supports two vane plates 111, and two vane plates 111 is driven to rotate.Replacing a long axis using two shafts 112 can To save material cost, while the weight of air valve blades 110 can also be mitigated, be controlled convenient for the rotation of air valve blades 110.And And be hollow installation chamber between two shafts 112, the overall stiffness and anti-twisting property of air valve blades 110 can be enhanced, keep away Exempt from deformation when air valve blades 110 work.

In one embodiment, mounting plate 1111, alice 1113 and lapping plate 1112 are structure as a whole.Illustratively, pacify Loading board 1111, alice 1113 and lapping plate 1112 are integrally formed by galvanized sheet roll-in.In this way, it is possible to reduce the number of part Amount, without assembling between lapping plate 1112, alice 1113 and mounting plate 1111, production is efficient, so that air valve blades 110 install letter Just, meanwhile, mounting plate 1111, alice 1113 and lapping plate 1112 are integrally formed the intensity that can also guarantee vane plate 111, improve The reliability that vane plate 111 works.

Referring to Fig. 1 and Fig. 4, in one embodiment, the distance of edge to the shaft 112 of alice 1113 is less than lapping plate 1112 Edge to shaft 112 distance.It should be understood that air valve blades 110 are positive when air valve blades 110 are in close state The vertical bearing area in both sides of diamond shape protrusion boundary is different.As shown in figure 4, front has the compression area of 1112 side of lapping plate big There is the overlapping area of 1113 side of alice in front, that is to say, that the compression area S1 of 110 left part of air valve blades is greater than wind The compression area S2 of 110 right part of valve blade.In this way, air valve blades 110 closure bear perpendicular to wind pressure when, for single Air valve blades 110 for, the both sides discontinuity equalization that air valve blades 110 are demarcated in diamond shape protrusion, there is lapping plate 1112 in front On one side receiving pressure be greater than while there are alice 1113 in front and receiving pressure, so that air valve blades 110 is generated one with shaft 112 For axle center, the tangential twisting resistance downward perpendicular to positive side lapping plate 1112.But since air valve blades 110 are center symmetrical junction Structure is in the lapping plate 1112 of air valve blades 110 with adjacent air valve blades 110 when overlapping with adjacent air valve blades 110 Lapping plate 1112 at reverse side fits closely together.The lapping plate 1112 of the more big two neighboring air valve blades 110 of wind pressure is bonded It is tighter, sealing effect is better.It should be understood that the torque that air valve blades 110 are closed is greater than the torque opened, to overcome air-flow Impact force.

In one embodiment, the angular range between alice 1113 and lapping plate 1112 is 20 °~60 °.In this way, alice 1113 can stop the air-flow flowing in overlap joint chamber 113, while forming turbulent flow to change airflow direction.Moreover, alice 1113 length for being projected on lapping plate 1112 are 1/3~3~the 4 of 1112 length of lapping plate.In this manner it is ensured that air valve blades 110 lapping plate 1112 is accurately extend into the overlap joint chamber 113 of adjacent air valve blades 110, avoid lapping plate 1112 with It is interfered between adjacent alice 1113, guarantees sealed reliable.At the same time it can also be ensured that alice 1113 makees the blocking of air-flow With.

In the present embodiment, lapping plate 1112 is arranged in tabular.In the present embodiment, two adjacent air valve blades 110 are taken When connecing, two lapping plates 1112 are bonded in parallel, guarantee sealing performance.Certainly, it in the other embodiments of the utility model, takes The bending of fishplate bar 1112 is arranged at least once.Such as lapping plate 1112 is in V-shape, arc convex etc..Wind two neighboring in this way When valve blade 110 overlaps, the bending place of two lapping plates 1112 is overlapped, and can increase the length of airflow path in this way, into One step guarantees sealing performance.

The utility model also provides a kind of ventilating system, including the wind valve structure 100 in above-described embodiment.Ventilating system is adopted After above-mentioned wind valve structure 100, it is ensured that the sealing effect after the closing of wind valve structure 100, while can also reduce cost.And And ventilating system, in addition to wind valve structure 100 further includes air regenerating device etc., these belong to the prior art, will not repeat them here.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, it is all considered to be the record scope of this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of wind valve structure, which is characterized in that including air valve blades；The air valve blades include:

Two vane plates, the vane plate include mounting plate and the alice and lapping plate for being set to the mounting plate two sides； And

Shaft, for installing two vane plates, described two vane plates are symmetrical about the spindle central, make the alice It is enclosed with the lapping plate and is set as overlap joint chamber, and the alice is directed away from the direction tilting of the lapping plate.

2. wind valve structure according to claim 1, which is characterized in that the wind valve structure include an air valve blades and Two L-type baffles positioned at the wind valve structure two sides, when the air valve blades are closed, the L-type baffle protrudes into the air-valve The overlap joint chamber of blade, and abutted with the lapping plate.

3. wind valve structure according to claim 1, which is characterized in that the wind valve structure includes at least two mutual overlap joints The air valve blades of connection, when two adjacent air valve blades overlap, the lapping plate of one of them air valve blades The overlap joint chamber of another air valve blades can be protruded into, and is abutted with the lapping plate of another air valve blades.

4. wind valve structure according to any one of claims 1 to 3, which is characterized in that the mounting plate and the shaft Junction is arranged in bending, and the bending place of the mounting plate is directed away from the direction protrusion of the shaft.

5. wind valve structure according to claim 4, which is characterized in that the mounting plate of two bendings, which encloses, is set as diamond shape Chamber is installed, the shaft is abutted with the inner wall of the installation chamber.

6. wind valve structure according to claim 5, which is characterized in that in each air valve blades, the number of the shaft Amount is two, and two shafts are located at the axial ends of the vane plate, and there are spacing between two shafts.

7. wind valve structure according to claim 6, which is characterized in that the shaft include cylindrical section and with the cylindrical section The diamond of connection, the cylindrical section are installed on the installation chamber, and the diamond exposes the air valve blades, are used for and drive Move transmission mechanism and the actuator connection of the air valve blades rotation.

8. wind valve structure according to any one of claims 1 to 3, which is characterized in that the mounting plate, the alice and The lapping plate is structure as a whole.

9. wind valve structure according to any one of claims 1 to 3, which is characterized in that the edge of the alice turns to described The distance of axis is less than the edge of the lapping plate to the distance of the shaft；

Angular range between the alice and the lapping plate is 20 °~60 °；

The length that the alice is projected on the lapping plate is the 1/3~3/4 of the lapping plate length；

The lapping plate is arranged in tabular；

Alternatively, the lapping plate bending is arranged at least once.

10. a kind of ventilating system, which is characterized in that including wind valve structure as described in any one of claim 1 to 9.