KR20210050823A - Metallic blades for damper - Google Patents

Abstract

When a damper is closed, the edges of metallic blades for a damper can block the flow of a fluid while making contact with each other. In this case, contact portions thereof can make surface contact with each other. Therefore, even when a fluid flows strongly, the metallic blades can be operated to be able to accurately block or allow the flow of a fluid while preventing the edges from being easily damaged or deformed. In particular, the blades are manufactured so that the cross sections of the overlapping portions thereof making surface contact with each other have a clamp shape, to have reinforced structural rigidity to be prevented from being easily damaged or deformed due to a strong flow of a fluid, thereby being used for a long time. In addition, an overlap bracket is mounted on the inner surface of a damper housing where the blades are mounted so that the outermost edge of the blade makes surface contact with the overlap bracket when the damper is closed. Therefore, the gap between the inside of the damper and the blade can be removed so that the flow of a fluid can be accurately blocked.

Description

Metal blade for damper {METALLIC BLADES FOR DAMPER}

The present invention relates to a metal blade for a damper, and more particularly, when the damper is closed, both edges of the damper blade are configured to make surface contact with another neighboring damper blade or a damper housing, so even if the fluid flow is made strong The structural rigidity is strengthened while enhancing the flow blocking effect so that the edge of the wing is not bent or damaged, so that it can be used stably for a long time. In particular, since the overlapping portion where surface contact is made as described above is formed by bending it into a bracket shape, it is possible to further increase the fluid blocking effect while preventing it from being easily deformed or damaged even in a fluid flow.

In general, in large buildings, dampers that control fluid flow by using air conditioners, etc. can be divided into volume dampers, smoke dampers, and fire dampers depending on the purpose of use. . Here, the volume damper is used to control the loss of resistance or uniform air volume of the duct device that is the passage of fluid flow, and the smoke damper is a damper to prevent smoke from penetrating into the duct when a fire occurs, and the fire damper is It is a damper used to block flames or smoke when a fire occurs.

When the damper is closed depending on its application, it is necessary that several wings (blades) formed inside the damper are in close contact to completely block the flow of fluid to block flames, smoke, harmful gases, etc. from entering the duct. Where there is a need for outside air, a sufficient amount of outside air can be supplied. Accordingly, the wing is configured to be able to maintain the sealed state in various ways as in (Patent Document 1) to (Patent Document 3) below.

(Patent Document 1) For Korean open rooms No. 20-2008-0006272

A damper provided with a frame, a plurality of blades rotatably installed on the frame, and a driving means for adjusting or blocking the amount of air in the duct by rotating the blade on one side of the frame. In this case, the blade has a pair of packings provided at both ends of the body so as to seal between the body to which the rotation shaft is fitted and the adjacent blade, and the body and the packing are formed as one member by double extrusion. It is possible to reduce the cost through innovative productivity improvement and quality improvement due to the reduction of major parts and work man-hours.

(Patent Document 2) Korean Registered Office No. 20-0473046

It relates to an anti-wing damper having a wing structure with improved airtightness. Therefore, the technical gist of the present invention is to form an intermittent rib and a closing rib at both ends of the wing in the opposite wing damper in which adjacent wings rotate in opposite directions, so that the flow of air can be airtightly blocked when the damper is closed. Of course, it is an object of the present invention to provide an anti-wing damper having a wing structure with improved airtightness that can minimize noise caused by opening and closing of the wing by providing a noise-preventing hole at a portion of the damper wing in contact with each other.

(Patent Document 3) Korean Patent Registration No. 10-1832325

A frame, a plurality of blades rotatably installed on the frame, and a drive means for rotating the blade to adjust the air flow, and the air flow amount arranged so that an extension of one blade overlaps an extension of another adjacent blade A blade used for an adjustment damper, wherein the blade has a predetermined width, extends in a longitudinal direction, and includes a main body to which a rotation shaft is coupled to a central portion; Extensions extending outward from both edges of the body in the width direction; And a packing in which base ends are fixed to both edges in the width direction of the main body and are maintained at free ends inside the extension part, and the tip end extends beyond the ends of the extension parts of the blade.

However, existing dampers have the following problems.

(1) Since packing (or rib) is used on the wing (blade) to prevent the inflow of flame, smoke, or harmful gas into the air conditioning duct, the airtightness effect is enhanced through such packing (or rib) at the beginning of production. However, as time passes, this confidentiality effect decreases.

(2) In particular, the packings or ribs used for airtightness are often made of materials that are vulnerable to heat. When a fire occurs in a building, the packing or ribs may be easily damaged by the heat or flame.

(3) On the other hand, the wing itself is often made of aluminum or metal material to withstand flames, and both edges are made in a semicircular shape so as not to be easily deformed or damaged by the resistance pressure generated when blocking the flowing fluid. This semicircle shape is helpful in strengthening the structural rigidity of the wing, but there is a limit to blocking fluid due to line contact with the adjacent wing.

(4) If the pressure of the flowing fluid is high, the contact part falls and then reattaches to the wing in line contact like this, and it acts as a factor that does not block the fluid flow accurately or generates noise between the wings.

(5) In addition, if the fluid flow cannot be blocked or noise is repeatedly generated, the edge of the wing is easily damaged or deformed, increasing maintenance costs.

Korean Open Office No. 20-2008-0006272 (Published: 2008.12.17) Korea Registration Office No. 20-0473046 (Registration date: 2014.05.30) Korean Patent Registration No. 10-1832325 (Registration Date: 2018.02.20)

The present invention is in consideration of this point, and when the damper is closed, the edges of the blades are in contact with each other to block fluid flow. It is an object of the present invention to provide a metal blade for a damper that is not only not damaged or deformed, but also operates to accurately block or open fluid flow.

In particular, the present invention is a damper metal that can be used for a long time by making a wing so that the cross section of the overlapping portion in contact with the surface is shaped like a bracket, thereby enhancing the structural rigidity of the wing to prevent it from being easily deformed or damaged even in a strong fluid flow. There is a different purpose in providing the wings.

In addition, the present invention is configured such that the outermost edge of the blade contacts the overlapping bracket when the damper is closed by mounting the overlapping bracket on the inner surface of the damper housing to which the blade is mounted, thereby forming a gap between the inside of the damper and the blade. Another object is to provide a metal vane for a damper that can be eliminated to accurately block the flow of fluid.

A metal blade for a damper according to the present invention for achieving this purpose includes a rotating plate 100 mounted to rotate on the damper housing 200 by mounting a shaft S at an intermediate portion of the width; and In the rotating plate 100, the first overlapping portion 110' is formed by bending the width cross section over the entire length at one edge to become a bracket shape, and the width cross section over the entire length is bent at the other edge to form a bracket shape. The second overlapping portion (110") is formed; however, when two adjacent rotating plates are in contact with each other by closing the damper, the first overlapping portion (110') formed on one rotating plate is the second overlapping portion of the rotating plate formed on the other ( 110") and surface contact.

In particular, one of the first overlapping portion 110 ′ and the second overlapping portion 110 ″ is formed to be larger and the other is formed to be smaller to overlap each other to make surface contact.

In addition, the first overlapping portion 110 ′ and the second overlapping portion 110 ″ are formed on the same surface of the rotating plate 100.

Finally, the damper housing 200 is mounted with an overlapping bracket 210 facing each other on the inner edge surface; and, when the damper is closed, the first overlapping of the rotating plate 100 in contact with the inner surface of the damper housing 200 It is characterized in that the portion 110 ′ and the second overlapping portion 110 ″ are configured to be in surface contact with the overlapping bracket 210.

The metal blade for a damper according to the present invention has the following effects.

(1) By making the edge of two adjacent wings and the gap between the blade and the inside of the damper in close contact with each other to block the flow of fluid, not only does the fluid flow accurately, but also prevents unnecessary leakage of fluid to prevent fluid flow. It can be used safely and conveniently by supplying it accurately to the place.

(2) In particular, by forming the overlapping portion where surface contact is made in the shape of a bracket, the structural rigidity of the wing is reinforced to prevent it from being easily bent or damaged even in a strong fluid flow, thereby increasing durability.

(3) In addition, one of the overlapping portions that are formed on both sides of the rotating plate is formed and the other is formed smaller, so that when the two blades overlap each other, the difference in size makes the surface contact even better and flows the fluid. It can increase the supply and cutoff effect.

(4) By making the blades of a metal material, it can be used for a damper used for fire prevention or a damper used for ventilation, so that one damper can be used for general purposes. In addition, since it can be used for ventilation and fire prevention, it is possible to use two functions as a single damper, reducing the number of dampers installed in the building by about half, thereby reducing construction and management costs.

(5) Finally, this reduction in the number of dampers not only reduces the construction load of the device using the damper that much, but also reduces the construction cost and construction period.

1 is a cross-sectional view showing an example of a damper to which a metal blade for a damper according to the present invention is applied.
[Fig. 2] is a side view separated to show the mounting state of a metal wing actually applied to a damper to which a metal wing for a damper according to the invention is applied.
[Fig. 3] is a perspective view showing the overall shape of a metal blade for a damper according to the present invention.
[Fig. 4] is a side view of a metal wing for showing an overlapping portion manufactured in different sizes according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor should appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention according to the principle that it can be.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, and various equivalents that can replace them at the time of the present application And it should be understood that there may be variations.

(Configuration)

The metal blade for a damper according to the present invention includes a rotating plate 100 mounted to the damper housing 200 so as to be rotatable with respect to the axis S, as shown in FIGS. 1 to 4.

In particular, by forming first and second overlapping portions 110 ′ and 110 ″ on both edges of the rotating plate 100 and configured to make surface contact when the edges of two adjacent rotating plates overlap, the damper housing ( 200) even if the fluid flows under a strong pressure, a gap between the rotating plates 100 is prevented and deformation is prevented, so that fluid flow and blockage can be accurately performed.

At this time, the first and second overlapping portions 110 ′ and 110 ″ are formed by bending the edge of the rotating plate 100 so that the width cross section becomes a bracket shape, thereby increasing the surface contact area to increase the airtight effect while increasing the air-tightness effect of the rotating plate 100. The structural rigidity of the rotary plate 100 is prevented from being damaged or deformed even under strong fluid pressure so that it can be used for a long time.

In addition, the first and second overlapping portions 110 ′ and 110 ″ are formed to be large so that when the edges of the metal wings according to the present invention overlap two adjacent to each other, they are well overlapped and surface contact can be made. will be.

Finally, by adding the overlapping bracket 210 to the inner surface of the damper housing 200, the edge of the metal wing installed at the outermost side of the damper housing 200 will face the overlapping bracket 210. It is possible to further increase the flow and blocking effect of the fluid.

Hereinafter, this configuration will be described in more detail with reference to the accompanying drawings.

end. Damper housing

The damper housing 200, as shown in FIG. 1, refers to a housing that serves as a duct so that the fluid can flow when the fluid flows. The damper housing 200 can be manufactured in various shapes, but is generally manufactured in a hexahedral shape to allow fluid to flow.

In addition, two overlapping brackets 210 are mounted on the inner surface of the damper housing 200 as shown in FIG. 1. The overlapping bracket 210 is a bracket that allows the edges of the rotating plate 100 to overlap when a damper is received by rotating the rotating plate 100 to be described later to block the flow of fluid.

In a preferred embodiment of the present invention, the overlapping bracket 210, as shown in [Fig. 1], when the rotating plate 100 rotates and the edge of the overlapping bracket 210 comes into contact, surface contact can be made between them. It is desirable to configure it. In the drawing, as the first and second overlapping portions 100 ′ and 100 ″ are formed at the edges of the rotating plate 100 in a wedge shape, the overlapping bracket 210 is also formed by bending the width cross section into a wedge shape. Show

At this time, the overlapping bracket 210 is manufactured to have a length equal to or similar to the length of the rotating plate 100, so that when the metal wings and the overlapping bracket 210 overlap each other and make surface contact, there is no gap between them. It is desirable to configure the flow to be completely blocked.

I. Turntable

Rotating plate 100, as shown in [Fig. 1] to [Fig. 4], at least one is rotatably mounted in the above-described damper housing 200, and when the damper is closed, between these adjacent rotating plates 100 The edge, the outer edge of the rotating plate, and the above-described overlapping bracket 210 overlap each other so that the fluid flow is completely blocked by surface contact, and at the same time, the structural rigidity of the rotating plate 100 can be reinforced.

Such a rotating plate 100, as shown in [Fig. 2] to [Fig. 4], a fixed portion 120 for supporting and fixing the axis (S) serving as the rotation center, and formed on both edges to provide a fluid through substantially surface contact. It includes a first overlapping portion (110') and a second overlapping portion (110") to make the flow and blocking.

1. Fixed part

The fixing part 120 is a part for fixing the shaft S to be rotatably mounted on the damper housing 200 and rotating together, as shown in FIGS. 1 to 4. Accordingly, the fixing portion 120 may be manufactured in any shape as long as it is a shape that allows the middle portion of the width of the rotating plate 100 to be fixed to the shaft S.

For example, the fixing part 120 may be formed by bent in the shape of a bracket in the middle of the width of the rotating plate 100 as shown in FIG. 2. At this time, the fixing part 120 is made to be in close contact with the shaft (S), and then covered with a finishing cover 121 and integrally fastened and fixed using a fastening means 122 such as a bolt so as not to be separated or removed from the rotating plate 100. . Here, the shaft (S) is inserted into the fixing portion 120 and the closing cover 121 and is forcibly fixed to rotate together with the rotating plate 100 as it is fastened with the fastening means 122.

At this time, the closing cover 121, although not shown in the drawing, is made to have the entire length of the fixing part 120, that is, the same length as the rotating plate 100, and configured to be stably fastened and fixed to the rotating plate 100. desirable.

2. 1st overlap Part and 2nd overlap part

The first overlapping portion 110 ′ and the second overlapping portion 110 ″ are formed on both edges of the rotating plate 100 as shown in FIGS. 1 to 4.

In particular, in a preferred embodiment of the present invention, the first overlapping portion 110' and the second overlapping portion 110" are, as shown in Figs. 2 to 4, each of the edge portions of the rotating plate 100 It is preferable to configure the rotary plate 100 to be bent to form a clamping shape, thereby reinforcing the structural rigidity of the rotary plate 100 as well as preventing the rotary plate 100 from being deformed or damaged even under pressure caused by a strong fluid flow.

In addition, in a preferred embodiment of the present invention, the first overlapping portion 110' and the second overlapping portion 110" are used by mounting a plurality of rotating plates 100, as shown in FIG. 1, at this time By closing the damper, the overlapping portion between the two adjacent rotating plates 100, and the inner surface of the rotating plate 100 and the damper housing 200 are in contact with each other to seal it, thereby enhancing the airtightness effect and ensuring a safe and accurate flow rate. It is desirable to configure it to be able to control.

At this time, the first overlapping portion 110 ′ and the second overlapping portion 110 ″ are made slightly larger than the other one, as shown in FIG. 6, so that when these overlapping portions are overlapped, the airtightness effect is maintained. It is desirable to configure it so as to increase the value of. In the drawing, an example in which the first overlapping portion 110' is slightly larger than the second overlapping portion 110" is shown.

And in a preferred embodiment of the present invention, the first overlapping portion 110' and the second overlapping portion 110" are formed on one side of the rotating plate 100, as shown in Figs. 2 to 4 By doing so, the two adjacent rotating plates 100 rotate in opposite directions to each other so that the opening and closing action is made, and rotational interference is minimized when rotating, so that the rotating plate 100 can rotate quickly and accurately.

As described above, the present invention is configured such that the overlapping portions, which are made to overlap on both edges of the rotating plate, can be in contact with the surface, so that when the damper is closed, the flow of fluid can be accurately blocked or supplied. In addition, the overlapping portion is formed to be bent into a bracket shape, thereby strengthening the structural rigidity of the rotating plate so that it is not easily deformed or damaged even in a strong fluid flow, thereby enhancing the fluid blocking effect and improving durability, so that it can be used for a long time.

100: rotating plate
110', 110": first and second overlapping portions
120: fixed part
200: damper housing
210: overlap bracket

Claims (4)

It includes a rotating plate 100 mounted to rotate on the damper housing 200 by mounting the shaft S in the middle of the width,
In the rotating plate 100,
The first overlapping part 110' is formed by bending the width cross section over the entire length at one edge to become a bracket shape, and the second overlapping part 110" by bending the width cross section to become a bracket shape over the entire length at the other edge. ), but
When two adjacent rotating plates are in contact with each other by closing the damper, the first overlapping portion 110 ′ formed on one of the rotating plates is configured to make surface contact with the second overlapping portion 110 ″ of the rotating plate formed on the other. Metal blades for dampers.
In claim 1,
Among the first overlapping portion 110 ′ and the second overlapping portion 110 ″,
Which one is largely formed,
Metal blades for dampers, characterized in that the other is formed to be small and overlapped with each other to make surface contact.
In claim 1,
The first overlapping portion 110 ′ and the second overlapping portion 110 ″,
Metal blades for dampers, characterized in that formed on the same surface of the rotating plate (100).
In any one of claims 1 to 3,
In the damper housing 200, overlapping brackets 210 are mounted on the inner edge faces to face each other,
When the damper is closed, the first overlapping portion 110 ′ and the second overlapping portion 110 ″ of the rotating plate 100 contacting the inner surface of the damper housing 200 are in surface contact with the overlapping bracket 210. Metal blades for dampers characterized by.

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