Metal plate air distribution box

Abstract

The utility model relates to the technical field of fan coils, and provides a metal plate air distribution box which comprises an air distribution box body, a mounting plate arranged on the air distribution box body, an air outlet formed in one side of the air distribution box body and a connecting assembly arranged on the other side of the air distribution box body, the connecting assembly comprises a fixing frame fixed to one side of the air distribution box body. Through the arrangement of the connecting assembly, communication between the duct type air conditioner and the air distribution box is achieved, and through the arrangement of the sealing cavity, when the connecting pipe compresses the sealing gasket, the sealing gasket can wrap the connecting pipe, so that the sealing effect is improved, the thickness of the sealing gasket at the assembly gap is increased, and the sealing effect is improved. The shock resistance is improved, the sealing effect is further improved, noise generated by leaked airflow is absorbed through the arrangement of the sound absorption cotton, and the noise is prevented from affecting indoor personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of fan coil units, in particular to a sheet metal air distribution box. Background Art

[0002] At present, most air duct machines can only handle the temperature of one room. Sometimes, an oversized selection will cause energy waste. The air distribution box used in conjunction with the air duct machine can reduce the dynamic pressure in the fresh air system and increase the static pressure, so that the wind can blow farther. In this way, both the air supply distance and range of the fresh air system can be improved, enabling the fresh air to better cover all areas of the room. After the connecting pipe of the existing air duct machine is connected to the air distribution box, it is necessary to seal the joint with rubber and plastic cotton to achieve the sealing effect. However, since the rubber and plastic cotton is stuffed later, it cannot completely block the joint, resulting in relatively weak sealing at the edge of the rubber and plastic cotton at the joint. After being impacted by the air flow for a long time, it is easy to have gaps, causing air leakage and affecting the ventilation effect. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the defect that the sealing effect at the connection between the existing air distribution box and the air duct machine is not good and it is easy to cause air leakage, and to propose a sheet metal air distribution box.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A sheet metal air distribution box includes an air distribution box body and a mounting plate arranged on the air distribution box body. An air outlet is arranged on one side of the air distribution box body, and a connection component which is connected to the air duct machine and can prevent air leakage is arranged on the other side of the air distribution box body;

[0006] The connection component includes a fixed frame fixed on one side of the air distribution box body. One end of the fixed frame is sleeved with a sealing gasket which is in close fit with the connecting pipe of the air duct machine, and the contact end of the sealing gasket with the connecting pipe is set as a smooth arc surface. A sealing cavity is arranged below the smooth arc surface. An externally arranged sliding pressing plate which is slidably connected with the air distribution box body is arranged on the fixed frame, and threaded holes for installation are arranged on both the fixed frame and the sliding pressing plate.

[0007] Preferably, a sound-absorbing cotton is sleeved outside the fixed frame.

[0008] Preferably, the cross-section of the air distribution box body is trapezoidal, and the cross-section of the air outlet is rectangular.

[0009] Preferably, a guide plate is inclined in the air outlet.

[0010] Preferably, the lengths of the guide plates increase in sequence from inside to outside.

[0011] Preferably, an adjusting component for adjusting the inclination of the guiding plate is provided on the air outlet. The adjusting component includes an adjusting cavity arranged inside the air outlet. A driving roller coaxially fixed with the guiding plate is rotatably installed in the adjusting cavity. A synchronous belt is sleeved on the outside of the driving roller in a transmission manner. A guiding groove is formed on one side of the driving roller. A guiding block is slidably installed inside the guiding groove. One side of the guiding block is coaxially fixed with an adjusting screw rod threadedly connected to the air outlet. One end of the adjusting screw rod penetrates through the adjusting cavity and is provided with an indicating block. A circular scale cooperating with the indicating block is provided on one side of the air outlet.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the setting of the connecting component, the connection between the air duct machine and the air distribution box is realized. Through the setting of the sealing cavity, when the connecting pipe compresses the sealing gasket, the sealing gasket will wrap around the outside of the connecting pipe. This not only improves the sealing effect, but also thickens the thickness of the sealing gasket at the assembly gap, improving its impact resistance performance and further enhancing the sealing effect. Through the setting of the sound-absorbing cotton, the noise generated by the leaked air flow is absorbed to avoid affecting the indoor personnel.

[0014] 2. Through the setting of the guiding plate, the flowing space of the air flow at the air outlet is compressed, increasing the air flow speed, thus expanding the air flow sending distance. Moreover, the compression of the air flow flowing area will make the air flow more concentrated, thereby enhancing the air flow effect in the local area. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a front view sectional view of the present utility model;

[0017] Figure 3 is Figure 2 an enlarged structural schematic diagram of area A in

[0018] Figure 4 is another three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 5 is another enlarged structural schematic diagram of the present utility model.

[0020] In the figure: 1, air distribution box body; 2, mounting plate; 3, air outlet; 4, guiding plate; 5, connecting component; 51, fixed frame; 52, sealing gasket; 521, sealing cavity; 53, sound-absorbing cotton; 54, sliding pressing plate; 6, adjusting component; 61, adjusting cavity; 62, driving roller; 63, synchronous belt; 64, guiding groove; 65, adjusting screw rod; 66, guiding block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The air distribution box plays multiple roles in the fresh air system, such as stabilizing pressure, reducing noise, improving system performance, and air volume distribution. It is an important component to ensure the efficient and stable operation of the fresh air system. During the installation process, the rubber and plastic cotton stuffed at the connection between the air duct machine connecting pipe and the air distribution box cannot completely block the assembly gap, and the air flow generated by the air duct machine is likely to rush out from the weak part, affecting the ventilation performance of the air duct machine.

[0023] Embodiment 1

[0024] The sealing effect at the connection between the existing air distribution box and the air duct machine is not good, which is likely to cause air leakage. Referring to Figures 1 - 5 , this embodiment proposes a sheet metal air distribution box. When the connecting pipe compresses the sealing gasket 52, the sealing gasket 52 will cover the outside of the connecting pipe. This not only improves the sealing effect but also thickens the thickness of the sealing gasket 52 at the assembly gap, improving its impact resistance. It mainly consists of an air distribution box body 1 and a mounting plate 2 provided on the air distribution box body 1, an air outlet 3 on one side of the air distribution box body 1, and a connecting component 5 provided on the other side of the air distribution box body 1, which is connected to the air duct machine and can prevent air leakage. During installation, the air distribution box body 1 can be first installed indoors through the mounting plate 2, then the air distribution box body 1 and the air duct machine are connected together by using the connecting component 5, and finally the air flow is guided to other rooms through the air outlet 3 in cooperation with the EPP pipeline.

[0025] To solve the problem of poor sealing effect at the connection, in this embodiment, through the setting of the connecting component 5, when the connecting pipe compresses the sealing gasket 52, the sealing gasket 52 will cover the outside of the connecting pipe, thereby improving the sealing effect, as shown in Figure 2As shown in the figure, the connecting component 5 includes a fixing frame 51 fixed on one side of the air distribution box body 1. One end of the fixing frame 51 is sleeved with a sealing gasket 52 that fits tightly with the connecting pipe of the air duct machine. The contact end of the sealing gasket 52 with the connecting pipe is set as a smooth arc surface. Below the smooth arc surface, there is a sealing cavity 521. Outside the fixing frame 51, there is a sliding pressing plate 54 slidably connected to the air distribution box body 1. Both the fixing frame 51 and the sliding pressing plate 54 are provided with threaded holes for installation. When installing the connecting pipe of the air duct machine, first sleeve it onto the fixing frame 51, and then tighten the installation bolt. By pressing the connecting pipe of the air duct machine with the sliding pressing plate 54, since there is a sealing cavity 521 on the sealing gasket 52, the pressing of the sliding pressing plate 54 will cause the sealing gasket 52 to be deformed by compression, so as to better fit on the connecting pipe of the air duct machine. At the same time, the thickness of the compressed sealing gasket 52 at the assembly gap will increase to a certain extent, thereby improving the impact resistance performance and increasing the sealing effect here. In addition, since the contact end of the sealing gasket 52 with the connecting pipe is set as a smooth arc surface, compared with other shapes, this setting increases the contact area between the sealing gasket 52 and the connecting pipe, further improving the sealing effect of the connecting component 5.

[0026] If there is a slight leakage, the air flow for leakage treatment may not affect the performance of the air distribution box body 1, but the noise generated when the air flow flows will affect the people living indoors. In this embodiment, by sleeving a sound-absorbing cotton 53 outside the fixing frame 51, the noise generated when the air flow flows can be absorbed to ensure a comfortable life for indoor personnel.

[0027] The cross-section of the air distribution box body 1 is trapezoidal. The trapezoidal design of the air distribution box body 1 is a kind of gradual change design, which enables the air flow entering the air distribution box body 1 to gradually adapt to the change of the space when passing through, reducing the situation of sudden expansion or contraction. This kind of gradual flow channel design helps to maintain the stability of the air flow, reduce the eddy current and turbulence generated due to the sudden change of the flow channel. Moreover, in this embodiment, the air flow moves from the wider end to the narrower end of the air distribution box body 1, and the air flow will be slowly compressed, so as to be more evenly distributed to each air outlet 3.

[0028] The cross-section of the air outlet 3 is rectangular. Due to the characteristics of its shape, the rectangular air outlet 3 can more flexibly adapt to various building structures and space layouts. Moreover, the structure of the rectangular air outlet 3 is relatively simple, making it easier to clean and maintain. Compared with the circular air outlet 3, the rectangular air outlet 3 has no complex curves and corners, making the cleaning work more convenient and fast, reducing the difficulty and cost of maintenance.

[0029] Embodiment 2

[0030] Based on the first embodiment, the technical solution proposed in the first embodiment is used to solve the drawback that the sealing effect at the connection between the existing air distribution box and the air duct machine is not good, which easily causes air leakage. However, the air flow distance sent out by the rectangular air outlet 3 is lower than that of the circular air outlet 3, and the fresh air cannot better cover each area.

[0031] Referring to Figures 1 - 5 , a guide plate 4 is inclined in the air outlet 3. In this embodiment, through the setting of the guide plate 4, the air flow entering the air outlet 3 is guided to move upward along the inclination angle of the guide plate 4, thereby compressing the space for the air flow to flow, increasing the pressure of the air flow itself, and then extending the air supply distance of the fresh air and improving the air supply effect of the air distribution box body 1.

[0032] The lengths of the guide plates 4 increase in sequence from inside to outside. The guide plates 4 with lengths increasing in sequence improve the guiding effect on the air flow, further compress the air flow space, make the air flow more concentrated, and enhance the air flow effect in the local area.

[0033] Too concentrated air flow can increase the air delivery distance, but it will also increase the noise generated during air flow, affecting the rest of indoor personnel. Therefore, in this embodiment, an adjustment component 6 for adjusting the inclination of the guide plate 4 is provided at each air outlet 3, so that the air flow velocity in each room can be adjusted according to needs, reflecting the practicality of the device. The adjustment component 6 includes an adjustment cavity 61 provided in the air outlet 3. A transmission roller 62 coaxially fixed with the guide plate 4 is rotatably installed in the adjustment cavity 61. A synchronous belt 63 is externally sleeved on the transmission roller 62. A guide groove 64 is opened on one side of the transmission roller 62. A guide block 66 is slidably installed inside the guide groove 64. One side of the guide block 66 is coaxially fixed with an adjustment screw rod 65 threadedly connected to the air outlet 3. One end of the adjustment screw rod 65 penetrates through the adjustment cavity 61 and is provided with an indicating block. A circular scale cooperating with the indicating block is provided on one side of the air outlet 3. During adjustment, the adjustment screw rod 65 can be driven to rotate by rotating the guide block 66. When the adjustment screw rod 65 rotates, the transmission roller 62 will be driven to rotate through the cooperation of the guide block 66 and the guide groove 64. Since the transmission roller 62 is coaxially fixed with the guide plate 4, the transmission roller 62 can drive the guide plate 4 to rotate. At the same time, since the synchronous belt 63 is externally sleeved on the transmission roller 62, the guide plates 4 in the same air outlet 3 can be driven to rotate synchronously. Moreover, the screw self-locking between the adjustment screw rod 65 and the air outlet 3 can improve the stability of the adjustment of the inclination of the guide plate 4, and through the cooperation of the indicating block and the circular scale, the adjustment effect of the adjustment component 6 can be more intuitively displayed.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sheet metal air distribution box, comprising an air distribution box body (1), and a mounting plate (2) arranged on the air distribution box body (1), wherein an air outlet (3) on one side of the air distribution box body (1) is characterized in that: The other side of the air distribution box (1) is provided with a connection component (5) which is connected to the air duct machine and can prevent air flow from overflowing; The connection assembly (5) comprises a fixing frame (51) fixed on one side of the air distribution box body (1); a sealing gasket (52) which is tightly fitted with the air duct connection pipe is sleeved on one end of the fixing frame (51); the contact end of the sealing gasket (52) and the connection pipe is arranged as a smooth arc surface; a sealing cavity (521) is arranged below the smooth arc surface; a sliding pressure plate (54) which is slidably connected with the air distribution box body (1) is arranged outside the fixing frame (51); and threaded holes for installation are arranged on both the fixing frame (51) and the sliding pressure plate (54).

2. The sheet metal air box according to claim 1, characterized in that: The fixing frame (51) is externally sleeved with sound-absorbing cotton (53).

3. The sheet metal air box according to claim 1, characterized in that: The cross section of the air distribution box body (1) is trapezoidal, and the cross section of the air outlet (3) is rectangular.

4. The sheet metal air box according to claim 1, characterized in that: A guide plate (4) is obliquely arranged in the air outlet (3).

5. The sheet metal air box according to claim 4, characterized in that: The lengths of the guide plates (4) increase in sequence from the inside to the outside.

6. The sheet metal air box according to claim 5, characterized in that: The air outlet (3) is provided with an adjustment component (6) for adjusting the inclination of the guide plate (4), the adjustment component (6) comprising an adjustment cavity (61) arranged in the air outlet (3), a transmission roller (62) coaxially fixed with the guide plate (4) being rotatably installed in the adjustment cavity (61), a transmission sleeve outside the transmission roller (62) being provided with a synchronous belt (63), a guide groove (64) being provided on one side of the transmission roller (62), a guide block (66) being slidably installed inside the guide groove (64), an adjustment screw rod (65) threadedly connected with the air outlet (3) being coaxially fixed on one side of the guide block (66), one end of the adjustment screw rod (65) passing through the adjustment cavity (61) being provided with an indicator block, and a ring scale cooperating with the indicator block being provided on one side of the air outlet (3).

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