Blind

Abstract

The utility model discloses a louver, which comprises a sheet metal frame and a plurality of blades. One end of each blade is the head end, and the other end is the tail end. After the head ends and the tail ends of the plurality of blades are overlapped, the interior of the sheet metal frame is completely covered. A fixing hole is formed at the head end of the blade, and the blade is supported in the sheet metal frame through a fixing shaft by means of the fixing hole, and the blade rotates and opens around the fixing shaft; a first bending part is arranged at the head end of the blade, and a 7-shaped second bending part is arranged at the tail end of the blade. The second bending parts of adjacent blades are overlapped above the first bending part to form a bending gap. The louver of the utility model can improve the sealing performance through the structural design of the blades, prevent dust or mosquitoes from entering the interior of the cabinet, and can adjust the blade angle to control the air volume inside and outside the cabinet, thereby adjusting the internal and external temperatures.

Description

Technical Field

[0001] This utility model belongs to the field of louver technology and relates to a louver for server racks. Background Technology

[0002] Servers and network equipment generate a significant amount of heat during operation. Installing louvers on the server rack helps regulate airflow, allowing hot air to escape and cool air to enter, thus maintaining the internal temperature within a reasonable range. However, traditional louvers suffer from problems such as inflexible slat opening and closing control and poor sealing between the slats. When the slats are closed, the large gaps allow dust and insects to easily enter the rack. Dust accumulation can lead to poor heat dissipation, and insects can damage circuitry, both of which can affect the normal operation of the equipment. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to provide a venetian blind that solves the problems of inflexible control of the opening and closing of the slats and poor sealing between the slats in traditional venetian blinds.

[0004] Technical solution: The present invention provides a venetian blind, comprising a sheet metal frame and multiple blades. One end of each blade is a head end and the other end is a tail end. The head and tail ends of the multiple blades overlap to cover the interior of the sheet metal frame. The head end of each blade is provided with a fixing hole, which supports the blade within the sheet metal frame via a fixing shaft. The blade rotates to open about the fixing shaft. The head end of each blade is provided with a first bend, and the tail end of each blade is provided with a 7-shaped second bend. The second bends of adjacent blades overlap above the first bends to form a bend gap.

[0005] Furthermore, in order to improve the flexibility of the opening and closing control of the louver blades, the louver also includes a sheet metal connecting rod, a rotating slide is provided on the side of the sheet metal frame, a rotating groove is provided on the blade, a rotating shaft is engaged in the rotating groove, and the rotating shaft passes through the rotating slide and is fixedly connected to the sheet metal connecting rod.

[0006] Furthermore, there are two sheet metal connecting rods, which are arranged on opposite sides of the sheet metal frame.

[0007] Furthermore, a mechanical rotating handle is provided on the sheet metal connecting rod. By rotating the mechanical rotating handle, the sheet metal connecting rod and the rotating shaft on the sheet metal connecting rod are driven to rotate, thereby driving the blade to rotate.

[0008] Furthermore, the mechanical rotating handle is located in the middle of the sheet metal connecting rod.

[0009] Furthermore, the blade is extruded from an aluminum alloy.

[0010] Furthermore, all edges and corners of the blades are chamfered.

[0011] Beneficial Effects: Compared with existing technologies, this utility model has the following advantages: The louvers of this utility model feature a first bend at the beginning of the slats and a second bend in a "7" shape at the end. The second bends of adjacent slats overlap above the first bend to form a bend gap. This structural design improves sealing and prevents dust or insects from entering the cabinet. Furthermore, the louvers of this utility model allow for manual or mechanical adjustment of the slat angle to control the airflow inside and outside the cabinet, thereby adjusting the internal and external temperatures. It has a simple structure, provides significant temperature adjustment, and offers high sealing performance, making it widely applicable to network cabinets, server cabinets, and other fields. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the blade structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall structure of the louver of this utility model.

[0014] Figure 3 for Figure 2 Cross-sectional view at point AA.

[0015] Figure 4 This is a side view of the louver structure of the present invention.

[0016] Figure 5 for Figure 3 A magnified view of a portion of point A in the middle. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0018] As attached Figure 1-4 As shown, the venetian blinds of this embodiment include a sheet metal frame 1, a sheet metal connecting rod 2, and multiple blades 3. The blades 3 are extruded from aluminum alloy, and each blade 3 has chamfered edges. One end of the blade 3 is the head end, and the other end is the tail end. The head and tail ends of the multiple blades 3 overlap to cover the inside of the sheet metal frame 1. The head end of the blade 3 is provided with a fixing hole 31. The fixing hole 31 is used to install the blade 3 inside the sheet metal frame 1 through a fixing shaft 5, and the blade 3 rotates to open around the fixing shaft 5.

[0019] Combination Figure 1 , Figure 3 and Figure 5 The blade 3 has a first bend 33 at its leading end and a 7-shaped second bend 34 at its trailing end, as shown in the attached figure. Figure 5As shown, the second bend portion 34 of the adjacent blade overlaps above the first bend portion 33 to form a bend gap. In this embodiment, the bending direction of the first bend portion 33 is upward towards the external environment, and the bending direction of the 7-shaped second bend portion 34 is first upward towards the external environment, and then bent towards the extension direction of the tail end of the blade 3 to form a cover. This structural design can improve the sealing performance and prevent dust or insects from entering the cabinet. Figure 3 The clockwise arrow indicates the rotation direction of blade 3, and the arrows on both sides of the louver indicate the airflow direction when blade 3 is open. The external environment referred to here is the side of the air intake direction indicated by the arrow, and the other side of the air outlet direction of the louver is the internal environment.

[0020] In a specific embodiment, the louver also includes a sheet metal connecting rod 2. A rotating slide 7 is provided on the side of the sheet metal frame 1, and a rotating shaft groove 32 is provided on the blade 3. A rotating shaft 6 is engaged within the rotating shaft groove 32, and the rotating shaft 6 passes through the rotating slide 7 and is fixedly connected to the sheet metal connecting rod 2. In a specific embodiment, there are two sheet metal connecting rods 3, located on opposite sides of the sheet metal frame 1. A mechanical rotating handle 4 is provided in the middle of the sheet metal connecting rod 3. Rotating the mechanical rotating handle 4 drives the sheet metal connecting rod 3 and the rotating shaft 6 on the sheet metal connecting rod 3 to rotate, thereby driving the blade 3 to rotate. This structural design allows the louver to be manually adjusted mechanically to control the airflow inside and outside the cabinet, thus effectively adjusting the temperature inside and outside the cabinet.

[0021] The specific usage steps are as follows: (see attached image) Figure 3 As shown, when there is an air intake requirement, turning the mechanical handle 4 clockwise rotates the sheet metal connecting rod 3, which in turn rotates all the aluminum alloy blades 3 clockwise, as shown in the attached diagram. Figure 5 The Q mark is turned upwards and clockwise, allowing air to enter the cabinet from top to bottom.

[0022] When it is necessary to shut off the air intake, the operation is reversed, that is, the mechanical rotating handle 4 is turned counterclockwise, which drives the sheet metal connecting rod 3 to rotate. The sheet metal connecting rod 3 drives all the aluminum alloy blades 3 to rotate counterclockwise until the second bend 34 on the two adjacent blades 3 overlaps the first bend 33, and the adjacent blades 3 are covered tightly.

Claims

1. A type of venetian blind, characterized in that, The device includes a sheet metal frame (1) and multiple blades (3). One end of each blade (3) is the head end and the other end is the tail end. The head and tail ends of the multiple blades (3) overlap to cover the inside of the sheet metal frame (1). The head end of each blade (3) is provided with a fixing hole (31). The fixing hole (31) supports the blade (3) inside the sheet metal frame (1) through a fixing shaft (5). The blade (3) rotates and opens around the fixing shaft (5). The head end of each blade (3) is provided with a first bending part (33), and the tail end of each blade (3) is provided with a 7-shaped second bending part (34). The second bending parts (34) of adjacent blades (3) overlap above the first bending part (33) to form a bending gap.

2. The venetian blind according to claim 1, characterized in that, The louver also includes a sheet metal connecting rod (2), and a rotating slide (7) is provided on the side of the sheet metal frame (1). A rotating groove (32) is provided on the blade (3), and a rotating shaft (6) is engaged in the rotating groove (32). The rotating shaft (6) passes through the rotating slide (7) and is fixedly connected to the sheet metal connecting rod (2).

3. The venetian blind according to claim 2, characterized in that, There are two sheet metal connecting rods (2), and the two sheet metal connecting rods (2) are arranged on opposite sides of the sheet metal frame (1).

4. The venetian blind according to claim 2 or 3, characterized in that, The sheet metal connecting rod (2) is provided with a mechanical rotating handle (4). By rotating the mechanical rotating handle (4), the sheet metal connecting rod (2) and the rotating shaft (6) on the sheet metal connecting rod (2) are driven to rotate, thereby driving the blade (3) to rotate.

5. The venetian blind according to claim 4, characterized in that, The mechanical rotating handle (4) is located in the middle of the sheet metal connecting rod (2).

6. The venetian blind according to claim 1, characterized in that, The blade (3) is extruded from aluminum alloy.

7. The venetian blind according to claim 1, characterized in that, The blades (3) are all chamfered at their corners.

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