CN218236191U - Air valve blade and air valve - Google Patents

Abstract

The embodiment of the utility model provides an air valve blade and air valve belongs to flow control valve technical field. The blade comprises a blade body, a first rotating piece and a second rotating piece. Be provided with first mounting groove and second mounting groove relatively on the blade body, the lateral wall of blade body is all run through to first mounting groove and second mounting groove. The first rotating part is provided with a first clamping portion, the first rotating part is partially installed in the first installation groove, and the first clamping portion is clamped on the blade body. The second rotates the piece and is provided with second joint portion, and the second rotates the piece part and installs in the second mounting groove, and just passes through second joint portion joint in the blade body. The first rotating member and the second rotating member are used to rotatably mount the vane body to the valve body. Which can facilitate the assembly of the blade.

Description

Air valve blade and air valve

Technical Field

The utility model relates to a flow valve technical field particularly, relates to an air valve blade and air valve.

Background

The air regulating valve is also called as air valve, is an indispensable central air-conditioning end fitting in ventilation, air-conditioning and air purification engineering of industrial factory buildings and civil buildings, is generally used in air-conditioners and ventilation system pipelines, is used for regulating the air quantity of branch pipes, and can also be used for mixed regulation of fresh air and return air.

The existing blade body and the valve rod are generally connected through a fastener, and are inconvenient to assemble in a narrow space of the valve body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air valve blade and air valve, its assembly that can be convenient for the blade.

The embodiment of the utility model is realized like this:

in a first aspect, the present invention provides an air valve blade, which includes a blade body, a first rotating member and a second rotating member;

the blade body is oppositely provided with a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are rectangular grooves, and one end of each rectangular groove penetrates through the side wall of the blade body;

the first rotating piece is provided with a first clamping portion, the first rotating piece is partially installed in the first installation groove, and the first rotating piece is clamped on the blade body through the first clamping portion;

the second rotating part is provided with a second clamping part, and the second rotating part is partially arranged in the second mounting groove and is clamped on the blade body through the second clamping part;

the first rotating member and the second rotating member are used for rotatably mounting the blade body to a valve body of an air valve.

This application is through setting up first mounting groove on the blade body, and set up first joint portion on first rotation piece, can peg graft at the blade body through first mounting groove with first rotation piece, and the first joint portion of accessible and blade body joint, thereby with the convenient installation on the blade body of first rotation piece, and set up the second mounting groove on the blade body, and set up second joint portion on the second rotation piece, can peg graft the second rotation piece in the second mounting groove, and through second joint portion and blade body joint, thereby can rotate the convenient installation on the blade body with the second, it is fixed to have avoided adopting the fastener, it is more convenient to assemble, and can avoid breaking away from.

In an optional implementation manner, at least part of the first clamping portion is disposed at the end of the first rotating member, two opposite sides of the first clamping portion penetrate through the side wall of the first rotating member, and the first rotating member is mounted at the end of the first mounting groove and clamped at two sides of the blade body in the thickness direction through the first clamping portion.

This application can utilize first mounting groove and first joint portion butt to fix a position the tip that first joint portion set up at first rotation piece when grafting first rotation piece, can be convenient for simultaneously install and reach better sealed.

In an optional embodiment, the first clamping portion is at least partially disposed on a side wall of the first rotating member along a length direction of the first rotating member, one end of the first mounting groove penetrates through an end portion of the first rotating member, and a portion of the first rotating member mounted in the first mounting groove is clamped to two sides of the blade body in a thickness direction through the first clamping portion.

This application can be convenient for the installation and reach better sealed with first joint portion setting at the length direction's of first rotation piece lateral wall.

In an optional embodiment, the first mounting groove includes a first side wall, a second side wall and a third side wall connected in sequence, and the first side wall and the third side wall are arranged oppositely;

the first clamping portion comprises a first clamping groove, a second clamping groove and a third clamping groove which are sequentially communicated, the first clamping groove and the third clamping groove are oppositely arranged on the side wall of the first rotating part, the second clamping groove is arranged at the end part of the first rotating part, and the second clamping groove penetrates through two opposite sides of the first rotating part;

first joint groove joint in the both sides that the first lateral wall is relative, second joint groove joint in the both sides that the second lateral wall is relative, third joint groove joint in the both sides that the third lateral wall is relative.

This embodiment is through setting up first joint portion to the first joint groove, second joint groove and the third joint groove that connect gradually to can joint first lateral wall, second lateral wall and the third lateral wall at first mounting groove one-to-one, thereby can improve the sealing performance between first rotating member and the blade body, and relatively fixed is more stable, also is convenient for install.

In an optional embodiment, the second joint portion is at least partially arranged at the end portion of the second rotating member, the two opposite sides of the second joint portion penetrate through the side wall of the second rotating member, and the second rotating member is arranged at the end portion of the second mounting groove and is connected with the two sides of the blade body in the thickness direction in a clamping mode through the second joint portion.

This application can utilize the butt between second mounting groove and the second joint portion to fix a position the tip that the second rotated the piece with second joint portion setting when the second rotated the piece in the grafting, can be convenient for simultaneously install and reach better sealed.

In an optional embodiment, the second joint portion at least partially along the second rotates the direction of length set up in the second rotates the lateral wall of piece, just the one end of second mounting groove runs through the tip that the second rotated the piece, the second rotate the piece install in the part of second mounting groove pass through second joint portion joint in the both sides of blade body thickness direction.

This application can be convenient for the installation and reach better sealed with second joint portion setting at the length direction's of second rotation piece lateral wall.

In an optional embodiment, the second mounting groove includes a fourth side wall, a fifth side wall and a sixth side wall, which are connected in sequence, and the fourth side wall and the sixth side wall are arranged oppositely;

the second clamping portion comprises a fourth clamping groove and a sixth clamping groove, and the fourth clamping groove and the sixth clamping groove are oppositely arranged on the side wall of the second rotating part;

the fourth joint slot joint in the both sides that the fourth lateral wall is relative, the second rotate the tip with the butt of fifth lateral wall, sixth joint slot joint in the both sides that the sixth lateral wall is relative.

This application is through setting up second joint portion into relative fourth joint groove and sixth joint groove to can joint fourth lateral wall and the sixth lateral wall at the second mounting groove one-to-one, thereby can improve the second and rotate the sealing performance between piece and the blade body, and can make the second rotate the relatively fixed between piece and the blade body more stable, also be convenient for install.

In an optional implementation mode, the air valve blade further comprises a valve rod, an insertion groove is formed in the end portion of the valve rod, the first rotating member is far away from one end of the second clamping groove, a mounting groove is formed in the end portion of the first rotating member, the mounting groove is communicated with the second clamping groove, the valve rod is arranged, one end of the insertion groove is inserted into the mounting groove, and the blade body extends into the mounting groove through the second clamping groove of the first clamping portion and is inserted into the insertion groove.

This application can be when the mounting groove is pegged graft to the valve rod through the tip at the valve rod set up the inserting groove, and restriction valve rod first rotating member relatively rotates.

In an alternative embodiment, the air valve blade further comprises a sealing strip, the periphery of the blade body is provided with a through hole, and the sealing strip is formed on the outer periphery of the blade body and is partially located in the through hole.

This application sets up the through-hole through the blade body periphery, thereby can prevent that the sealing strip from droing with the sealing strip shaping at the periphery of blade body again.

In a second aspect, the present invention provides an air valve comprising a valve body and a vane as described in any one of the preceding embodiments, the valve body having a passage, the vane body passing through the first rotating member and the second rotating member rotatably mounted in the passage, the vane body rotating to open or close the passage.

The first joint portion second joint portion of the first joint portion of blast gate that this application provided includes above-mentioned arbitrary embodiment blast gate blade. Therefore, there is also a corresponding effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a valve provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of a blade according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a blade body of a blade according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first rotating member of a blade according to an embodiment of the present invention;

fig. 5 is a schematic axial sectional structural view of a first rotating member of a vane provided in an embodiment of the present invention;

fig. 6 is a schematic structural view of a second rotating member of a vane according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a valve stem of a vane provided in an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a damper blade along the length direction of the first rotating member according to an embodiment of the present invention.

The figure is 100-blast gate blade; 110-a blade body; 111-a first mounting groove; 113-a second mounting groove; 115-a first sidewall; 117-second side wall; 119-a third side wall; 121-a fourth sidewall; 123-a fifth side wall; 125-sixth side wall; 127-a through hole; 130-a first rotating member; 131-a first clamping part; 133-a first snap groove; 135-a second snap groove; 137-a third snap groove; 139-mounting groove; 150-a second rotating member; 151-second snap-in part; 153-fourth snap groove; 157-sixth snap groove; 170-sealing strip; 190-a valve stem; 191-a plug groove; 300-air valve; 310-a valve body; 311-channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "first", "second", "third", "fourth", "fifth", "sixth", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present invention provides an air valve 300. The air valve 300 comprises a valve body 310 and air valve blades 100, wherein the valve body 310 is provided with a passage 311, the air valve blades 100 are rotatably arranged on the passage 311, and the air valve blades 100 can open or close the passage 311 by rotating.

Referring to fig. 2, 3, 4, 5 and 6, in the present embodiment, the air valve blade 100 includes a blade body 110, a first rotating member 130 and a second rotating member 150. The blade body 110 is provided with a first mounting groove 111 and a second mounting groove 113, which are opposite to each other. The first and second mounting grooves 111 and 113 are all rectangular grooves, and one end thereof penetrates through the side wall of the blade body 110. The first rotating member 130 is provided with a first engaging portion 131. The first rotating member 130 is partially installed in the first installation groove 111 and is fastened to the blade body 110 by a first fastening portion 131. The second rotating member 150 is provided with a second clamping portion 151, and the second rotating member 150 is partially installed in the second installation groove 113 and clamped to the blade body 110 through the second clamping portion 151. The first rotating member 130 and the second rotating member 150 are each rotatably mounted to the valve body 310.

In the embodiment, the first mounting groove 111 is formed in the blade body 110, the first clamping portion 131 is formed in the first rotating member 130, the first rotating member 130 can be inserted into the blade body 110 through the first mounting groove 111, and can be clamped with the blade body 110 through the first clamping portion 131, so that the first rotating member 130 can be conveniently mounted on the blade body 110, the second mounting groove 113 is formed in the blade body 110, the second clamping portion 151 is formed in the second rotating member 150, the second rotating member 150 can be inserted into the second mounting groove 113, and is clamped with the blade body 110 through the second clamping portion 151, so that the second rotating member 150 can be conveniently mounted on the air flap 100, fixing by using a fastening member is avoided, assembling is more convenient, and separation can be avoided.

Referring to fig. 2, 3, 4, 5 and 6, in the present embodiment, the first mounting groove 111 includes a first sidewall 115, a second sidewall 117 and a third sidewall 119 which are connected in sequence. The first sidewall 115 and the third sidewall 119 are oppositely disposed. The first rotating member 130 is cylindrical, and the first engaging portion 131 includes a first engaging groove 133, a second engaging groove 135, and a third engaging groove 137, which are sequentially connected. The first engaging groove 133 and the third engaging groove 137 are disposed opposite to the side wall of the first rotating member 130. The second engaging groove 135 is disposed at an end of the first rotating member 130, and the second engaging groove 135 penetrates through two opposite sides of the first rotating member 130. The first engaging grooves 133 are engaged with opposite sides of the first sidewall 115, the second engaging grooves 135 are engaged with opposite sides of the second sidewall 117, and the third engaging grooves 137 are engaged with opposite sides of the third sidewall 119.

The first clamping portion 131 is sequentially connected to the first clamping groove 133, the second clamping groove 135 and the third clamping groove 137, so that the first side wall 115, the second side wall 117 and the third side wall 119 of the first mounting groove 111 can be clamped in a one-to-one correspondence manner, the sealing performance between the first rotating member 130 and the blade body 110 can be improved, the first rotating member is relatively fixed, and the blade body is relatively stable and convenient to mount.

Of course, in some embodiments of the present application, the first clamping portion 131 is at least partially disposed at the end portion of the first rotating member 130, two opposite sides of the first clamping portion 131 penetrate through the side wall of the first rotating member 130, and the end portion of the first rotating member 130, which is mounted in the first mounting groove 111, is clamped at two sides of the blade body 110 in the thickness direction by the first clamping portion 131. The end portion of the first clamping portion 131 arranged on the first rotating member 130 in the embodiment can be abutted to the first mounting groove 111 and the first clamping portion 131 to be positioned when the first rotating member 130 is inserted, and meanwhile, the installation and the better sealing can be achieved conveniently.

In other embodiments of the present application, the first clamping portion 131 is disposed on the side wall of the first rotating member 130 at least partially along the length direction of the first rotating member 130, one end of the first mounting groove 111 penetrates through the end of the first rotating member 130, and the portion of the first rotating member 130 mounted in the first mounting groove 111 is clamped on two sides of the blade body 110 in the thickness direction by the first clamping portion 131. The embodiment of the invention has the advantage that the first clamping portion 131 is arranged on the side wall of the first rotating member 130 in the length direction, so that the installation is convenient and the better sealing is achieved.

Referring to fig. 2, 3, 4, 5 and 6, in the present embodiment, the first engaging groove 133, the second engaging groove 135 and the third engaging groove 137 are rectangular grooves, and the first rotating member 130 is mounted in the first mounting groove 111, and the first engaging groove 133, the second engaging groove 135 and the third engaging groove 137 are respectively abutted against the first side wall 115, the second side wall 117 and the third side wall 119, so that the assembling accuracy can be improved and the sealing performance can be improved.

Referring to fig. 3 and 6, in the present embodiment, the second mounting groove 113 includes a fourth side wall 121, a fifth side wall 123 and a sixth side wall 125 connected in sequence. The fourth sidewall 121 and the sixth sidewall 125 are oppositely disposed. The second rotating member 150 has a cylindrical shape. The second clamping portion 151 includes a fourth clamping groove 153 and a sixth clamping groove 157 which are oppositely arranged, the fourth clamping groove 153 and the sixth clamping groove 157 are oppositely arranged on the side wall of the second rotating member 150, the fourth clamping groove 153 is clamped on two opposite sides of the fourth side wall 121, the end portion of the second rotating member 150 is abutted against the fifth side wall 123, and the sixth clamping groove 157 is clamped on two opposite sides of the sixth side wall 125.

In this embodiment, the second clamping portion 151 is configured as the fourth clamping groove 153 and the sixth clamping groove 157, and the fourth side wall 121 and the sixth side wall 125 of the second mounting groove 113 can be clamped in a one-to-one correspondence, so that the sealing performance between the second rotating member 150 and the blade body 110 can be improved, and the relative fixation between the blade body 110 and the second rotating member 150 can be more stable, and the installation is also convenient.

Of course, in some embodiments of the present application, the end of the second rotating member 150 may also be provided with a clamping groove, so that the clamping groove is also clamped at two sides of the fifth side wall 123.

In some embodiments of the present application, the second clamping portion 151 is at least partially disposed at an end of the second rotating member 150, two opposite sides of the second clamping portion 151 penetrate through a sidewall of the second rotating member 150, and the second rotating member 150 is mounted at an end of the second mounting groove 113 and clamped at two sides of the blade body 110 in the thickness direction through the second clamping portion 151. This embodiment sets up second joint portion 151 at the second and rotates the tip of piece 150 and can utilize the butt between two second mounting grooves 113 and the second joint portion 151 to fix a position when the grafting second rotates piece 150, can be convenient for simultaneously the installation and reach better sealed.

In other embodiments of the present application, the second clamping portion 151 is disposed on the side wall of the second rotating member 150 at least partially along the length direction of the second rotating member 150, one end of the second mounting groove 113 penetrates through the end of the second rotating member 150, and the portion of the second rotating member 150 mounted in the second mounting groove 113 is clamped on two sides of the blade body 110 in the thickness direction by the second clamping portion 151. The second clamping portion 151 is disposed on the side wall of the second rotating member 150 in the length direction, so that the second rotating member is convenient to mount and achieves better sealing.

Referring to fig. 2, 4, 5, 7 and 8, in the present embodiment, the air valve blade 100 further includes a valve rod 190, an insertion groove 191 is disposed at an end of the valve rod 190, an installation groove 139 is concavely disposed at an end of the first rotating member 130 away from the second clamping groove 135, the installation groove 139 is communicated with the second clamping groove 135, an end of the valve rod 190, which is provided with the insertion groove 191, is inserted into the installation groove 139, and the blade body 110 extends into the installation groove 139 through the second clamping groove 135 and is inserted into the insertion groove 191. In the embodiment, the valve rod 190 can be limited to rotate relative to the first rotating member 130 when the valve rod 190 is inserted into the installation groove 139 by providing the insertion groove 191 at the end of the valve rod 190.

Referring to fig. 2, in the present embodiment, the damper blade 100 further includes a sealing strip 170, a through hole 127 is formed on a periphery of the blade body 110, and the sealing strip 170 is formed on the periphery of the blade body 110 and is partially located in the through hole 127. In the present embodiment, the through hole 127 is provided at the periphery of the blade body 110, and the seal strip 170 is molded at the periphery of the blade body 110, so that the seal strip 170 can be prevented from falling off.

The sealing strip 170 is formed on the outer periphery of the blade body 110, that is, the sealing strip 170 is directly injection-molded on the blade body 110 by injection molding after the first rotating member 130 and the second rotating member 150 are both mounted on the blade body 110, and at this time, when the sealing strip 170 is formed, a part of raw materials flows into the through hole 127, so that the sealing strip 170 and the blade body 110 can be more stably connected.

In summary, the air valve 300 and the air valve blade 100 provided by the embodiment are configured by the first mounting groove 111 on the blade body 110, and the first engaging portion 131 is disposed on the first rotating member 130, the first rotating member 130 can be inserted into the blade body 110 through the first mounting groove 111, and can be engaged with the blade body 110 through the first engaging portion 131, so that the first rotating member 130 can be conveniently mounted on the blade body 110, the second mounting groove 113 is disposed on the blade body 110, and the second engaging portion 151 is disposed on the second rotating member 150, the second rotating member 150 can be inserted into the second mounting groove 113, and can be engaged with the blade body 110 through the second engaging portion 151, so that the second rotating member 150 can be conveniently mounted on the air valve blade 100, thereby avoiding the use of fastening members for fixing, the assembly is more convenient, and the separation can be avoided.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A damper blade, characterized in that the damper blade (100) comprises a blade body (110), a first rotational member (130) and a second rotational member (150);

a first mounting groove (111) and a second mounting groove (113) are oppositely arranged on the blade body (110), and both the first mounting groove (111) and the second mounting groove (113) penetrate through the side wall of the blade body (110);

the first rotating piece (130) is provided with a first clamping portion (131), the first rotating piece (130) is partially installed in the first installation groove (111), and the first clamping portion (131) is clamped on the blade body (110);

the second rotating part (150) is provided with a second clamping part (151), the second rotating part (150) is partially installed in the second installation groove (113), and is clamped on the blade body (110) through the second clamping part (151);

the first rotating member (130) and the second rotating member (150) are used for rotatably mounting the blade body (110) to a valve body of an air valve.

2. The air valve blade according to claim 1, wherein the first clamping portion (131) is at least partially disposed at an end portion of the first rotating member (130), two opposite sides of the first clamping portion (131) penetrate through a side wall of the first rotating member (130), and the first rotating member (130) is mounted at an end portion of the first mounting groove (111) and clamped to two sides of the blade body (110) in a thickness direction by the first clamping portion (131).

3. The air damper blade according to claim 1 or 2, wherein the first clamping portion (131) is at least partially disposed on a side wall of the first rotating member (130) along a length direction of the first rotating member (130), one end of the first mounting groove (111) penetrates through an end portion of the first rotating member (130), and a portion of the first rotating member (130) mounted in the first mounting groove (111) is clamped on two sides of the blade body (110) in a thickness direction by the first clamping portion (131).

4. The air damper blade according to claim 1, wherein the first mounting groove (111) comprises a first side wall (115), a second side wall (117) and a third side wall (119) which are connected in sequence, and the first side wall (115) and the third side wall (119) are oppositely arranged;

the first clamping portion (131) comprises a first clamping groove (133), a second clamping groove (135) and a third clamping groove (137) which are sequentially communicated, the first clamping groove (133) and the third clamping groove (137) are oppositely arranged on the side wall of the first rotating member (130), the second clamping groove (135) is arranged at the end portion of the first rotating member (130), and the second clamping groove (135) penetrates through two opposite sides of the first rotating member (130);

first joint groove (133) joint in the both sides that first lateral wall (115) is relative, second joint groove (135) joint in the both sides that second lateral wall (117) is relative, third joint groove (137) joint in the both sides that third lateral wall (119) is relative.

5. The air valve blade according to claim 1, wherein the second clamping portion (151) is at least partially disposed at an end of the second rotating member (150), two opposite sides of the second clamping portion (151) penetrate through a side wall of the second rotating member (150), and the second rotating member (150) is mounted at an end of the second mounting groove (113) and clamped at two sides of the blade body (110) in a thickness direction through the second clamping portion (151).

6. The air damper blade according to claim 1 or 5, wherein the second locking portion (151) is disposed at least partially on a side wall of the second rotating member (150) along a length direction of the second rotating member (150), one end of the second mounting groove (113) penetrates through an end portion of the second rotating member (150), and a portion of the second rotating member (150) mounted in the second mounting groove (113) is locked to both sides of the blade body (110) in a thickness direction by the second locking portion (151).

7. The air valve blade according to claim 1, wherein the second mounting groove (113) comprises a fourth side wall (121), a fifth side wall (123) and a sixth side wall (125) which are connected in sequence, and the fourth side wall (121) and the sixth side wall (125) are oppositely arranged;

the second clamping portion (151) comprises a fourth clamping groove (153) and a sixth clamping groove (157), and the fourth clamping groove (153) and the sixth clamping groove (157) are oppositely arranged on the side wall of the second rotating member (150);

the fourth clamping groove (153) is clamped on two opposite sides of the fourth side wall (121), the end part of the second rotating part (150) is abutted to the fifth side wall (123), and the sixth clamping groove (157) is clamped on two opposite sides of the sixth side wall (125).

8. The air valve blade according to claim 4, characterized in that the blade further comprises a valve rod (190), an insertion groove (191) is formed in an end portion of the valve rod (190), a mounting groove (139) is formed in one end, far away from the second clamping groove (135), of the first rotating member (130), the mounting groove (139) is communicated with the second clamping groove (135), one end, provided with the insertion groove (191), of the valve rod (190) is inserted into the mounting groove (139), and the blade body (110) extends into the mounting groove (139) through the first clamping portion of the second clamping groove (135) and is inserted into the insertion groove (191).

9. The air damper blade according to claim 1, wherein the air damper blade (100) further comprises a sealing strip (170), the periphery of the blade body (110) is provided with a through hole (127), and the sealing strip (170) is formed on the outer periphery of the blade body (110) and is partially located in the through hole (127).

10. A damper comprising a valve body (310) and a vane of any one of claims 1 to 9, the valve body (310) having a passage (311), the vane body (110) being rotatably mounted to the passage (311) by the first rotating member (130) and the second rotating member (150), the vane body (110) being rotatable to open or close the passage (311).

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