CN216555444U - Rotary flashboard capable of accurately adjusting air volume of air duct - Google Patents
Rotary flashboard capable of accurately adjusting air volume of air duct Download PDFInfo
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- CN216555444U CN216555444U CN202122628528.1U CN202122628528U CN216555444U CN 216555444 U CN216555444 U CN 216555444U CN 202122628528 U CN202122628528 U CN 202122628528U CN 216555444 U CN216555444 U CN 216555444U
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- flashboard
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- seat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model discloses a rotary flashboard for accurately adjusting air volume of an air duct, and belongs to the technical field of air duct flashboards. The flashboard seat is of a cylindrical pipe body structure, the adjusting cover plate is arranged in the flashboard seat, and the central axis of the adjusting cover plate is superposed with the central axis of the flashboard seat; a shielding plate assembly is fixedly connected in the flashboard seat and is parallel to the adjusting cover plate; when the rotary flashboard is closed, the pressing cylinder drives the adjusting cover plate to rotate by taking the central shaft of the adjusting cover plate as a rotating shaft and move towards the direction close to the shielding plate assembly, and the adjusting cover plate and the shielding plate assembly cover the flashboard seat together; when the rotary flashboard is opened, the pressing cylinder drives the adjusting cover plate to rotate by taking the self central shaft as a rotating shaft and move towards the direction far away from the shielding plate assembly, and the adjusting cover plate and the shielding plate assembly are partially or completely overlapped. The utility model solves the problems that the air tightness of the flashboard is difficult to ensure by the existing structure, and the air leakage phenomenon exists, so that the accuracy of adjusting the air quantity is influenced.
Description
Technical Field
The utility model relates to the technical field of air duct flashboards, in particular to a rotary flashboard for accurately adjusting air volume of an air duct.
Background
The air duct flashboard is arranged in the air duct and used for adjusting the air quantity of the air duct or opening and closing the air duct. The existing air duct flashboard is generally a direct insertion type flashboard, the air duct flashboard is perpendicular to an air duct, the air duct flashboard is perpendicular to the air duct, the air duct flashboard moves in the length direction, when the air duct flashboard is pulled away from the direction inside the air duct, the air duct flashboard is opened, when the air duct flashboard is inserted into the air duct, the air duct flashboard is closed, but the air duct flashboard of the structure is insufficient in sealing performance, even if the air duct flashboard is closed, a gap is reserved between a movable cover plate of the air duct flashboard and guide rails on two sides, the air tightness of the flashboard is difficult to guarantee, the phenomenon of air leakage can exist, and the accuracy of adjusting the air quantity is influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects, the utility model aims to provide a rotary flashboard for accurately adjusting air volume of an air duct, and solves the problems that the air tightness of the flashboard is difficult to ensure and air leakage occurs in the conventional structure, so that the accuracy of adjusting the air volume is influenced.
In order to achieve the purpose, the utility model adopts the following technical scheme: a rotary flashboard for accurately adjusting air volume of an air duct comprises an adjusting cover plate, a flashboard seat and a pressing air cylinder;
the gate plate seat is of a cylindrical pipe body structure, the adjusting cover plate is arranged in the gate plate seat, and the central axis of the adjusting cover plate is superposed with the central axis of the gate plate seat;
a shielding plate assembly is fixedly connected in the flashboard seat and is parallel to the adjusting cover plate, and the sum of the areas of the shielding plate assembly and the adjusting cover plate is larger than or equal to the cross sectional area of the flashboard seat;
the adjusting cover plate is provided with a first connecting hole, a central shaft of the adjusting cover plate penetrates through the first connecting hole, and a connecting shaft of the pressing cylinder is fixed to the first connecting hole; when the rotary flashboard is closed, the pressing air cylinder drives the adjusting cover plate to rotate by taking the central shaft of the adjusting cover plate as a rotating shaft and move towards the direction close to the shielding plate assembly, and the adjusting cover plate and the shielding plate assembly cover the flashboard seat together; when the rotary flashboard is opened, the pressing cylinder drives the adjusting cover plate to rotate by taking the self central shaft as a rotating shaft and move in the direction far away from the shielding plate assembly, and the adjusting cover plate and the shielding plate assembly are partially or completely overlapped.
It is worth to say that, the regulation apron has seted up first opening, shutter plate subassembly has seted up the second opening, when rotatory flashboard was opened completely, first opening aim at the second opening.
Optionally, the first opening divides the adjusting cover plate into a first connecting portion, a plurality of fan-shaped rotating portions and a plurality of first circular arc connecting sections, all the vertex sides of the fan-shaped rotating portions are connected through the first connecting portion, two adjacent circular arc sides of the fan-shaped rotating portions are connected through the first circular arc connecting sections, the first connecting portion is arranged on the central axis of the flashboard base, and the first connecting hole is arranged in the first connecting portion.
Specifically, the shielding plate assembly is provided with a plurality of second openings, the second openings divide the shielding plate assembly into a second connecting part, a plurality of fan-shaped shielding parts and a plurality of second arc connecting sections, the arc sides of the fan-shaped shielding parts are fixedly connected with the inner wall of the flashboard seat, the vertex sides of all the fan-shaped shielding parts are connected through the second connecting part, the arc sides of two adjacent fan-shaped shielding parts are connected through the second arc connecting section, and the second arc connecting section is fixedly connected with the inner wall of the flashboard seat;
the second connecting portion set up in the axis of flashboard seat, the second connecting portion are equipped with the second connecting hole, the connecting axle that compresses tightly the cylinder passes the second connecting hole and in the second connecting hole internal rotation.
Preferably, the sector-shaped rotating parts are arranged in the flashboard seat at intervals, the sector-shaped shielding parts are arranged in the flashboard seat at intervals, and the number of the sector-shaped rotating parts is equal to that of the sector-shaped shielding parts;
when the rotary flashboard is closed, the sector-shaped rotary parts and the sector-shaped shielding parts are distributed in a staggered mode.
It is worth to say that, the adjusting cover plate includes two fan-shaped rotating portions, and the two fan-shaped rotating portions are oppositely disposed on two sides of the first connecting portion;
the shielding plate assembly comprises two fan-shaped shielding parts, the two fan-shaped shielding parts are oppositely arranged on two sides of the second connecting part, and the angle radian of each fan-shaped shielding part is 90 degrees.
Optionally, the adjusting cover plate is arranged on one side of the air inlet of the flashboard seat, and the shielding plate assembly is arranged on one side of the air outlet of the flashboard seat.
Specifically, the edge of the second opening is provided with a sealing strip.
Preferably, the flashboard seat is provided with a protective net, and the area of the protective net is equal to the cross-sectional area of the flashboard seat.
It is worth to say that the second connecting hole is provided with a linear bearing, and the connecting shaft of the pressing cylinder penetrates through the linear bearing and is in sliding connection with the linear bearing.
One of the above technical solutions has the following beneficial effects: in the rotatory flashboard of accurate regulation wind channel amount of wind adjust the apron rotation and make when rotatory flashboard closes, adjust the apron can be to being close to the direction motion of shutter plate subassembly, work as rotatory flashboard closes the back completely, because it is close to adjust the apron shutter plate subassembly moves, has avoided adjust the apron in there is the clearance between the shutter plate subassembly, has improved the gas tightness of rotatory flashboard, thereby has improved the precision of rotatory flashboard regulation amount of wind.
Drawings
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of one embodiment of the present invention;
FIG. 3 is a front view of the rotary shutter fully open in one embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a front view of a rotary shutter fully closed in one embodiment of the present invention;
FIG. 6 is a sectional view taken along line B-B of FIG. 5;
FIG. 7 is a front view of the rotary shutter half open in one embodiment of the present invention;
FIG. 8 is an exploded view of one embodiment of the present invention;
FIG. 9 is a schematic structural diagram of another embodiment of the present invention;
wherein: 1, adjusting a cover plate; 11 a sector-shaped rotating portion; 12 a first connection portion; 13 a first connection hole; 14 a first arc connecting section; 15 a first opening; 2, a flashboard seat; 21 a shutter member; 211 a sector-shaped shielding part; 212 a second connection portion; 213 second connection hole; 214 a second arc connecting section; 215 a second opening; 22 a sealing strip; 23, a protective net; 3, pressing the cylinder; 31 connecting the shafts; 4 linear bearings.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes a rotary shutter for accurately adjusting air volume of an air duct according to an embodiment of the present invention with reference to fig. 1 to 9, including an adjusting cover plate 1, a shutter base 2, and a pressing cylinder 3; the gate plate seat 2 is of a cylindrical pipe body structure, the adjusting cover plate 1 is arranged in the gate plate seat 2, and the central axis of the adjusting cover plate 1 is superposed with the central axis of the gate plate seat 2; therefore, the damper plate can rotate in the damper plate seat 2 by taking the central axis of the damper plate seat 2 as a rotating shaft, and cannot collide with the inner wall of the damper plate seat 2. A shielding plate assembly 21 is fixedly connected in the flashboard seat 2, the shielding plate assembly 21 is parallel to the adjusting cover plate 1, and the sum of the areas of the shielding plate assembly 21 and the adjusting cover plate 1 is larger than or equal to the cross sectional area of the flashboard seat 2; for example, the shutter assembly 21 has a semicircular structure, and the adjustment cover plate 1 also has a semicircular structure. As another example, the shielding plate assembly 21 has a fan-shaped structure of 120 °, and the adjusting cover plate 1 has a fan-shaped structure of more than 240 °. For another example, as shown in fig. 9, the shielding plate assembly 21 is a U-shaped structure, one side of an arc of the U-shaped structure is fixed to one side of the shutter seat 2, the other side of the U-shaped structure is suspended away from a central axis of the shutter seat 2, and the adjusting cover plate 1 is a structure complementary to the shielding plate assembly 21. When the shielding plate assembly 21 and the adjusting cover plate 1 are staggered, the shielding plate assembly 21 and the adjusting cover plate 1 can cover the whole cross section area of the flashboard seat 2, so that the purpose of closing the rotary flashboard is achieved. The adjusting cover plate 1 is provided with a first connecting hole 13, the central shaft of the adjusting cover plate 1 penetrates through the first connecting hole 13, and the connecting shaft 31 of the pressing cylinder 3 is fixed to the first connecting hole 13; when the rotary flashboard is closed, the pressing cylinder 3 drives the adjusting cover plate 1 to rotate by taking the central shaft of the adjusting cover plate 1 as a rotating shaft and move towards the direction close to the shielding plate component 21, and the adjusting cover plate 1 and the shielding plate component 21 cover the flashboard seat 2 together; when the rotary flashboard is opened, the pressing cylinder 3 drives the adjusting cover plate 1 to rotate by taking the self central shaft as a rotating shaft and move towards the direction far away from the shielding plate component 21, and the adjusting cover plate 1 and the shielding plate component 21 are partially or completely overlapped. Specifically, the opening degree of the rotary flashboard can be adjusted by adjusting the rotation angle of the adjusting cover plate 1, so that the aim of controlling the air volume is fulfilled.
The compressing cylinder 3 is an existing commonly-used cylinder, also called a rotary clamping cylinder, and the compressing cylinder 3 can do telescopic motion and rotary motion at the same time when working. In the rotatory flashboard of accurate regulation wind channel amount of wind adjust apron 1 rotation and make rotatory flashboard is closed the time, adjust apron 1 can be to being close to the direction motion of shutter assembly 21 works as the back is closed completely to rotatory flashboard, because adjust apron 1 and be close to shutter assembly 21 moves, has avoided adjust apron 1 in there is the clearance between the shutter assembly 21, has improved the gas tightness of rotatory flashboard, thereby has improved the precision of the rotatory flashboard regulation amount of wind. In addition, the rotary flashboard adopts a rotary opening and closing structural form, so that the occupied space is saved compared with a direct-insertion type flashboard, and the application flexibility of the rotary flashboard is improved.
In some embodiments, the adjusting cover plate 1 defines a first opening 15, the shutter assembly 21 defines a second opening 215, and the first opening 15 is aligned with the second opening 215 when the rotary shutter is fully opened. As shown in fig. 8, the first opening 15 and the second opening 215 function as wind guide, and when the adjusting cover plate 1 is rotated to align the first opening 15 with the second opening 215, the first opening 15 communicates with the second opening 215, so that wind can pass through the rotary shutter plate. The first opening 15 and the second opening 215 can be machined in different shapes, such as rectangular, circular, triangular or fan-shaped.
It should be noted that the first opening 15 divides the adjusting cover plate 1 into a first connecting portion 12, a plurality of fan-shaped rotating portions 11 and a plurality of first arc connecting sections 14, vertex sides of all the fan-shaped rotating portions 11 are connected by the first connecting portion 12, arc sides of two adjacent fan-shaped rotating portions 11 are connected by the first arc connecting section 14, the first connecting portion 12 is disposed on a central axis of the shutter base 2, and the first connecting hole 13 is disposed on the first connecting portion 12. As shown in fig. 2 to 8, the connecting shaft 31 of the pressing cylinder 3 drives the first connecting portion 12 to rotate and drives the first connecting portion 12 to perform a front-back telescopic motion, so that the first connecting portion 12 drives all the sector-shaped rotating portions 11 to perform the same rotation and the same telescopic motion. Because fan-shaped rotating part 11 is fan-shaped structure, when rotating and doing concertina movement, circular arc one side of fan-shaped rotating part 11 all the time with cylindrical pipe body structure the shape fit of the inner wall of flashboard seat 2 and can not touch the inner wall of flashboard seat 2 has guaranteed smooth degree when adjusting 1 rotation of apron. The first arc connecting section 14 has the function of reinforcing the adjusting cover plate 1, so that one arc side of each of the fan-shaped shielding parts 211 is connected, the firmness is improved, and the fan-shaped shielding parts are not easily damaged when strong wind is applied.
Optionally, the shielding plate assembly 21 is provided with a plurality of second openings 215, the second openings 215 divide the shielding plate assembly 21 into a second connecting portion 212, a plurality of fan-shaped shielding portions 211 and a plurality of second circular arc connecting sections 214, circular arc sides of the fan-shaped shielding portions 211 are fixedly connected with the inner wall of the shutter seat 2, vertex sides of all the fan-shaped shielding portions 211 are connected by the second connecting portion 212, circular arc sides of two adjacent fan-shaped shielding portions 211 are connected by the second circular arc connecting section 214, and the second circular arc connecting section 214 is fixedly connected with the inner wall of the shutter seat 2; the second connecting portion 212 is disposed on the central axis of the damper seat 2, the second connecting portion 212 is provided with a second connecting hole 213, and the connecting shaft 31 of the pressing cylinder 3 passes through the second connecting hole 213 and rotates in the second connecting hole 213.
As shown in fig. 5, since the fan-shaped shielding portion 211 has a fan-shaped structure, the arc side of the fan-shaped shielding portion 211 can be matched with the inner wall of the shutter base 2, and the wind shielding effect of the second arc connecting section 214 is combined, so that the wind leakage after the rotary shutter is closed can be avoided. In addition, since the vertex sides of all the fan-shaped shielding portions 211 are connected by the second connecting portion 212, the shielding plate assembly 21 can be stably fixed to the inner wall of the shutter base 2, and is not easily detached from the shutter base 2 even if strong wind is applied. The second connecting portion 212 also plays a role in supporting the pressing cylinder 3, and the pressing cylinder 3 is fixed to the flashboard base 2 through the second connecting portion 212, so that the connecting shaft 31 of the pressing cylinder is rotated relative to the flashboard base 2, and the adjusting cover plate 1 is driven to rotate. In this embodiment, when the shutter assembly 21 and the adjustment cover plate 1 are shifted from each other to close the rotary shutter, the combined surface of the sector-shaped rotating portion 11, the first connecting portion 12, the sector-shaped shielding portion 211, and the second connecting portion 212 can cover the entire cross-sectional area of the shutter base 2, thereby achieving the purpose of closing the rotary shutter.
Specifically, the sector-shaped rotating portions 11 are arranged in the shutter base 2 at intervals, the sector-shaped shielding portions 211 are arranged in the shutter base 2 at intervals, and the number of the sector-shaped rotating portions 11 is equal to the number of the sector-shaped shielding portions 211; when the rotary shutter is closed, the sector-shaped rotary portions 11 and the sector-shaped shielding portions 211 are alternately distributed. As shown in fig. 2, the front side is an air inlet and the rear side is an air outlet. The greater the number of the sector-shaped rotation portions 11 and/or the number of the sector-shaped shielding portions 211 is, the smaller the angle by which the sector-shaped rotation portions 11 need to be rotated when the rotary shutter is opened and closed is, and the higher the accuracy of the rotation is required. The structure of the sector-shaped rotating portion 11 and the sector-shaped shielding portion 211 which are distributed in a staggered manner after the rotary shutter is closed enables the sector-shaped rotating portion 11 and the sector-shaped shielding portion 211 to be overlapped when the rotary shutter is opened, so that the first opening 15 is aligned with the second opening 215, and wind energy can uniformly pass through the air outlet of the turnover shutter.
Preferably, the adjusting cover plate 1 includes two fan-shaped rotating portions 11, and the two fan-shaped rotating portions 11 are oppositely disposed at two sides of the first connecting portion 12; the shielding plate assembly 21 includes two fan-shaped shielding portions 211, the two fan-shaped shielding portions 211 are oppositely disposed at two sides of the second connecting portion 212, and an angular arc of the fan-shaped shielding portion 211 is 90 °. When the angular arc of the fan-shaped shielding part 211 is greater than 90 degrees, the maximum value of the angular arc of a single air inlet is smaller than 90 degrees, so that the area of the air inlet is too small to facilitate the flow of strong wind; when the angular arc of the fan-shaped shielding part 211 is smaller than 90 degrees, the maximum value of the angular arc of a single air inlet is larger than 90 degrees, the arc length of the air inlet is too long, and the angle of the adjusting cover plate 1 which needs to rotate is too large, so that the quick opening and closing of the rotary flashboard are not facilitated; when the arc of the sector shielding part 211 is 90 °, the fan-shaped shielding part is not only beneficial to the strong wind to flow through, but also beneficial to the rapid opening and closing of the rotary flashboard.
In some embodiments, the adjusting cover plate 1 is disposed on one side of the inlet air of the flashboard seat 2, and the shielding plate assembly 21 is disposed on one side of the outlet air of the flashboard seat 2. As shown in fig. 1, 2, 4 and 6, the front side is the side for air intake, and the rear side is the side for air outtake. So, after the rotatory flashboard is closed completely, the strong wind blows adjust the apron 1 the surface thereby will adjust the apron 1 compress tightly in shutter subassembly 21 further improves the leakproofness, avoids leaking out.
It is noted that the edge of the second opening 215 is provided with a sealing strip 22. As shown in fig. 2, 7 and 8, the sealing strips 22 are provided to further ensure the air tightness of the rotary shutter, and air is not easy to leak after the rotary shutter is completely closed.
Optionally, the damper seat 2 is provided with a protective net 23, and the area of the protective net 23 is equal to the cross-sectional area of the damper seat 2. As shown in fig. 1, the protective net 23 can effectively isolate large articles floating in the wind channel, so as to prevent the floating large articles from damaging equipment in the wind channel.
Specifically, the second connection hole 213 is provided with a linear bearing 4, and the connection shaft 31 of the pressing cylinder 3 passes through the linear bearing 4 and is slidably connected with the linear bearing 4. As shown in fig. 1 and 4, the linear bearing 4 is used to guide the connecting shaft 31 of the pressing cylinder 3 to perform a telescopic motion in the front-rear direction.
Other configurations and operations of a rotary shutter for precisely adjusting air volume of an air duct according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a rotatory flashboard of accurate regulation wind channel amount of wind, is including adjusting apron, flashboard seat and compressing tightly the cylinder, its characterized in that:
the gate plate seat is of a cylindrical pipe body structure, the adjusting cover plate is arranged in the gate plate seat, and the central axis of the adjusting cover plate is superposed with the central axis of the gate plate seat;
a shielding plate assembly is fixedly connected in the flashboard seat and is parallel to the adjusting cover plate, and the sum of the areas of the shielding plate assembly and the adjusting cover plate is larger than or equal to the cross sectional area of the flashboard seat;
the adjusting cover plate is provided with a first connecting hole, a central shaft of the adjusting cover plate penetrates through the first connecting hole, and a connecting shaft of the pressing cylinder is fixed to the first connecting hole; when the rotary flashboard is closed, the pressing cylinder drives the adjusting cover plate to rotate by taking the central shaft of the adjusting cover plate as a rotating shaft and move towards the direction close to the shielding plate assembly, and the adjusting cover plate and the shielding plate assembly cover the flashboard seat together; when the rotary flashboard is opened, the pressing cylinder drives the adjusting cover plate to rotate by taking the self central shaft as a rotating shaft and move in the direction far away from the shielding plate assembly, and the adjusting cover plate and the shielding plate assembly are partially or completely overlapped.
2. The rotary damper for accurately adjusting the air volume of the air duct according to claim 1, wherein: the adjusting cover plate is provided with a first opening, the shielding plate assembly is provided with a second opening, and when the rotary flashboard is completely opened, the first opening is aligned to the second opening.
3. The rotary damper for accurately adjusting the air volume of the air duct according to claim 2, characterized in that: the first opening will adjust the apron and divide into first connecting portion, a plurality of fan-shaped rotating part and a plurality of first circular arc linkage segment, all the summit side of fan-shaped rotating part is passed through first connecting portion are connected, adjacent two the circular arc side of fan-shaped rotating part passes through first circular arc linkage segment is connected, first connecting portion set up in the axis of flashboard seat, first connecting hole set up in first connecting portion.
4. The rotary damper for accurately adjusting the air volume of the air duct according to claim 3, wherein: the shielding plate assembly is provided with a plurality of second openings, the shielding plate assembly is divided into a second connecting part, a plurality of fan-shaped shielding parts and a plurality of second arc connecting sections by the second openings, the arc sides of the fan-shaped shielding parts are fixedly connected with the inner wall of the flashboard seat, the vertex sides of all the fan-shaped shielding parts are connected through the second connecting part, the arc sides of two adjacent fan-shaped shielding parts are connected through the second arc connecting section, and the second arc connecting section is fixedly connected with the inner wall of the flashboard seat;
the second connecting portion set up in the axis of flashboard seat, the second connecting portion are equipped with the second connecting hole, the connecting axle that compresses tightly the cylinder passes the second connecting hole and in the second connecting hole internal rotation.
5. The rotary damper for accurately adjusting the air volume of the air duct according to claim 4, wherein: the sector rotating parts are arranged in the flashboard seat at intervals, the sector shielding parts are arranged in the flashboard seat at intervals, and the number of the sector rotating parts is equal to that of the sector shielding parts;
when the rotary flashboard is closed, the sector-shaped rotary parts and the sector-shaped shielding parts are distributed in a staggered mode.
6. The rotary damper for accurately adjusting the air volume of the air duct according to claim 5, wherein: the adjusting cover plate comprises two fan-shaped rotating parts, and the two fan-shaped rotating parts are oppositely arranged on two sides of the first connecting part;
the shielding plate assembly comprises two fan-shaped shielding parts, the two fan-shaped shielding parts are oppositely arranged on two sides of the second connecting part, and the angle radian of each fan-shaped shielding part is 90 degrees.
7. The rotary damper for accurately adjusting the air volume of the air duct according to claim 1, wherein: the adjusting cover plate is arranged on one side of air inlet of the flashboard seat, and the shielding plate assembly is arranged on one side of air outlet of the flashboard seat.
8. The rotary damper for accurately adjusting the air volume of the air duct according to claim 4, wherein: and a sealing strip is arranged at the edge of the second opening.
9. The rotary damper for accurately adjusting the air volume of the air duct according to claim 1, wherein: the flashboard seat is provided with a protective net, and the area of the protective net is equal to the cross sectional area of the flashboard seat.
10. The rotary damper for accurately adjusting the air volume of the air duct according to claim 4, wherein: the second connecting hole is provided with a linear bearing, and the connecting shaft of the pressing cylinder penetrates through the linear bearing and is in sliding connection with the linear bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122628528.1U CN216555444U (en) | 2021-10-29 | 2021-10-29 | Rotary flashboard capable of accurately adjusting air volume of air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122628528.1U CN216555444U (en) | 2021-10-29 | 2021-10-29 | Rotary flashboard capable of accurately adjusting air volume of air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216555444U true CN216555444U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122628528.1U Active CN216555444U (en) | 2021-10-29 | 2021-10-29 | Rotary flashboard capable of accurately adjusting air volume of air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216555444U (en) |
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2021
- 2021-10-29 CN CN202122628528.1U patent/CN216555444U/en active Active
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