Air outlet device

Abstract

The utility model discloses an air outlet device, which relates to the technical field of air exhaust, and comprises a shell, a first rectifying plate and a second rectifying plate, the first rectifying plate and the second rectifying plate are both arranged in the shell, and the internal space of the shell is divided into a first rectifying cavity, a second rectifying cavity and a third rectifying cavity by the first rectifying plate and the second rectifying plate; an air inlet communicated with the first rectifying cavity is formed in the shell, and a plurality of air outlet holes communicated with the third rectifying cavity are further formed in the shell; the first rectifying cavity is provided with at least two flow guide parts, the at least two flow guide parts are arranged on the two sides of the air inlet correspondingly, and the flow guide parts are used for guiding air entering from the air inlet to other positions of the first rectifying cavity; a plurality of first air inlet through holes are formed in the first rectifying plate, so that the first rectifying cavity communicates with the second rectifying cavity; a plurality of second air inlet through holes are formed in the second rectifying plate so that the second rectifying cavity can communicate with the third rectifying cavity. According to the utility model, airflow input from the air inlet can be uniformly and stably output.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, specifically to an air outlet device. Background Technology

[0002] Laboratories are typically equipped with equipment such as fume hoods and exhaust hoods to remove harmful gases in a timely manner and ensure personnel safety. However, these devices often suffer from reduced efficiency due to airflow interference from the fresh air system, and may even lead to the leakage of harmful gases. Utility Model Content

[0003] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, this utility model provides an air outlet device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an air outlet device, comprising a housing, a first rectifier plate and a second rectifier plate, wherein the first rectifier plate and the second rectifier plate are both disposed within the housing, and the internal space of the housing is divided into a first rectifier cavity, a second rectifier cavity and a third rectifier cavity;

[0005] The housing is provided with an air inlet communicating with the first rectifier cavity, and the housing is also provided with a plurality of air outlets communicating with the third rectifier cavity;

[0006] The first rectifier cavity is provided with at least two flow guides, and the at least two flow guides are respectively arranged on both sides of the air inlet. The flow guides are used to guide the gas entering at the air inlet to other positions in the first rectifier cavity.

[0007] The first rectifier plate is provided with a plurality of first air inlet holes to connect the first rectifier cavity with the second rectifier cavity;

[0008] The second rectifier plate is provided with a plurality of second air inlet holes to connect the second rectifier cavity with the third rectifier cavity.

[0009] The application of this utility model has the following beneficial effects: This device uses a guide section, a first rectifier plate, a second rectifier plate and multiple air outlets to rectify the gas input from the air inlet, which can make the airflow input from the air inlet uniformly and stably output to the laboratory space, and avoid the airflow of the fresh air system in the laboratory from interfering with the exhaust system.

[0010] Optionally, the flow guide is disposed on the inner wall of the first rectifier cavity on the side where the air inlet is located, and a flow guide channel is formed between the flow guide and the inner wall of the first rectifier cavity. One end of the flow guide channel is connected to the air inlet, and the other end of the flow guide channel is open. The channel wall of the flow guide channel is provided with a plurality of third air inlet holes to connect the flow guide channel with the first rectifier cavity. There is a gap between the ends of the flow guide channels of at least two of the flow guides facing the air inlet to allow some of the gas entering through the air inlet to pass through.

[0011] Optionally, the flow guiding section includes a flow guiding surface and a flow rectifying surface connected to each other. The flow guiding surface faces the air inlet, and the flow rectifying surface faces the first rectifier plate. The flow guiding surface forms an angle with the axial section of the air inlet, and the flow rectifying surface is perpendicular to the axial section of the air inlet. The third air inlet through hole is formed on the flow rectifying surface. Side plates are provided on both sides of the flow rectifying surface along the width direction of the flow guiding channel, and the side plates are connected to the inner wall of the first rectifier cavity.

[0012] Optionally, the first rectifier plate is perpendicular to the axis of the air inlet, and the first rectifier plate is divided into a first region and a second region surrounding the first region. The first region corresponds to the air inlet, and the diameter of the first air inlet hole in the first region is smaller than the diameter of the first air inlet hole in the second region.

[0013] Optionally, the distribution density of the first air inlet holes in the first region is greater than the distribution density of the first air inlet holes in the second region.

[0014] Optionally, the second rectifier plate is perpendicular to the axis of the air inlet, and the second rectifier plate is divided into a third region and two fourth regions located on both sides of the third region. The surface of the third region facing the air inlet is recessed to form a groove extending along the length direction of the second rectifier plate.

[0015] Optionally, the trench has a V-shaped cross-section, and the included angle between the two sidewalls of the trench is an obtuse angle.

[0016] Optionally, the housing includes a top plate and a bottom plate disposed opposite to each other, and a frame connecting the top plate and the bottom plate. The space between the top plate and the first rectifier plate is the first rectifier cavity, the space between the first rectifier plate and the second rectifier plate is the second rectifier cavity, and the space between the second rectifier plate and the bottom plate is the third rectifier cavity. The air inlet is formed on the top plate, and the air outlet is formed on the bottom plate. The top plate is provided with a hanging ring structure for fixed connection with a wall, and the frame is provided with a hanging ear structure for fixed connection with a wall.

[0017] Optionally, the inner sidewall of the frame is provided with a first overlapping edge and a second overlapping edge surrounding the inner side of the frame. The first overlapping edge overlaps with the first rectifier plate, and the second overlapping edge overlaps with the second rectifier plate. Both the first overlapping edge and the second overlapping edge are provided with multiple through holes.

[0018] Optionally, it also includes a light strip, which is disposed in the third rectifier cavity and surrounds the inner wall of the frame; the base plate is made of a light-transmitting material.

[0019] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0022] Figure 2 This is an exploded view of the present invention.

[0023] Figure 3 This is a perspective view of the present invention.

[0024] Figure 4 This is an assembly diagram of the frame, the first overlapping edge, and the second overlapping edge of this utility model.

[0025] Figure 5 This is a structural schematic diagram of the top plate of this utility model at one angle.

[0026] Figure 6 This is a structural schematic diagram of the top plate of this utility model from another angle.

[0027] Figure 7 This is a front view of the first rectifier plate of this utility model.

[0028] Among them, 10 is the top plate; 101 is the air inlet; 11 is the bottom plate; 111 is the air outlet; 12 is the frame; 20 is the first rectifier plate; 201 is the first air inlet hole; 21 is the first overlapping edge; 30 is the second rectifier plate; 301 is the second air inlet hole; 302 is the groove; 31 is the second overlapping edge; 40 is the guide section; 401 is the third air inlet hole; 41 is the rectifier surface; 42 is the guide surface; 43 is the side plate; 44 is the guide channel; 60 is the hanging ring structure; 70 is the hanging ear structure; and 80 is the light strip. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0030] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this patent. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0031] like Figure 1-7 As shown, an embodiment of the present invention provides an air outlet device, including a housing, a first rectifier plate 20 and a second rectifier plate 30. The first rectifier plate 20 and the second rectifier plate 30 are both disposed in the housing, and the internal space of the housing is divided into a first rectifier cavity, a second rectifier cavity and a third rectifier cavity.

[0032] The housing is provided with an air inlet 101 communicating with the first rectifier cavity. The air inlet 101 is used to connect with the fresh air duct to input gas into the first diversion cavity. The housing is also provided with a plurality of air outlets 111 communicating with the third rectifier cavity. The air outlets are used to uniformly output the gas from the third diversion cavity.

[0033] The first rectifier cavity is provided with two flow guides 40, and the two flow guides 40 are respectively located on both sides of the air inlet 101. The flow guides 40 are used to guide the gas entering at the air inlet 101 to other positions in the first rectifier cavity.

[0034] The first rectifier plate 20 is provided with a plurality of evenly distributed first air inlet holes 201 to connect the first rectifier cavity with the second rectifier cavity;

[0035] The second rectifier plate 30 is provided with a plurality of evenly distributed second air inlet holes 301 to connect the second rectifier cavity with the third rectifier cavity.

[0036] In some embodiments, the guide portion 40 is disposed on the inner wall of the first rectifier cavity on the side where the air inlet 101 is disposed. A guide channel 44 is formed between the guide portion 40 and the inner wall of the first rectifier cavity. One end of the guide channel 44 is connected to the air inlet 101, and the other end of the guide channel 44 extends along the length direction of the first rectifier plate 20 and is open. A plurality of third air inlet holes 401 are provided on the bottom channel wall of the guide channel 44 to connect the guide channel 44 with the first rectifier cavity. The guide portion 40 can guide the gas entering through the air inlet to both sides for the first step of dispersion. There is a gap between the ends of the guide channels 44 of the two guide portions 40 facing the air inlet 101 to allow some of the gas entering through the air inlet 101 to pass through.

[0037] Specifically, the flow guiding section 40 includes a flow guiding surface 42 and a flow rectifying surface 41 connected to each other. The flow guiding surface 42 faces the air inlet 101, and the flow rectifying surface 41 faces the first rectifier plate 20. The flow guiding surface 42 forms an angle with the axial section of the air inlet 101, and the flow rectifying surface 41 is perpendicular to the axial section of the air inlet 101. The third air inlet through hole 401 is formed on the flow rectifying surface 41. Side plates 43 are provided on both sides of the flow guiding channel 44 along the width direction, and the side plates 43 are connected to the inner wall of the first rectifier cavity.

[0038] In some embodiments, the first rectifier plate 20 is perpendicular to the axis of the air inlet 101. The first rectifier plate 20 is divided into a first region 22 and a second region 23 surrounding the first region 22. The first region 22 corresponds to the air inlet 101. The diameter of the first air inlet holes 201 in the first region 22 is smaller than the diameter of the first air inlet holes 201 in the second region 23. The distribution density of the first air inlet holes 201 in the first region 22 is greater than the distribution density of the first air inlet holes 201 in the second region 23. The first region 22 of the first rectifier plate 20 has small and densely packed first air inlet holes, while the second region 23 has larger first air inlet holes. The first region allows gas input from the air inlet that has not passed through the guide section to be further dispersed in all directions.

[0039] In some embodiments, the second rectifier plate 30 is perpendicular to the axis of the air inlet 101. The second rectifier plate 30 is divided into a third region and two fourth regions located on either side of the third region. A groove 302 extending along the length of the second rectifier plate 30 is recessed on the surface of the third region facing the air inlet 101. The groove 302 has a V-shaped cross-section, and the included angle between the two sidewalls of the groove 302 is an obtuse angle. The groove formed on the second rectifier plate not only further disperses the gas but also reflects the light from the lamp strip disposed in the third rectifier cavity, making the light more uniform.

[0040] The diameter of the third air inlet is larger than the diameter of the first air inlet in the second region, the diameter of the first air inlet in the second region is larger than the diameter of the second air inlet, and the diameter of the first air inlet in the second region is larger than the diameter of the air outlet.

[0041] In some embodiments, the housing includes a top plate and a bottom plate disposed opposite to each other, and a frame connecting the top plate and the bottom plate. The space between the top plate and the first rectifier plate 20 is the first rectifier cavity, the space between the first rectifier plate 20 and the second rectifier plate 30 is the second rectifier cavity, and the space between the second rectifier plate 30 and the bottom plate is the third rectifier cavity. The air inlet 101 is formed on the top plate, and the air outlet 111 is formed on the bottom plate, and the air outlet 111 is evenly distributed on the bottom plate. The top plate is provided with a hanging ring structure 60 for fixed connection with a wall, and the frame is provided with a hanging ear structure 70 for fixed connection with a wall. The embodiments of this utility model do not have special limitations on the hanging ring structure 60 and the hanging ear structure 70; any structure known to those skilled in the art that can be fixedly connected to a wall is acceptable.

[0042] In some embodiments, the inner sidewall of the frame is provided with a first overlapping edge 21 and a second overlapping edge 31 surrounding the inner side of the frame. The first overlapping edge 21 overlaps with the first rectifier plate 20, and the second overlapping edge 31 overlaps with the second rectifier plate 30. Both the first overlapping edge 21 and the second overlapping edge 31 are provided with multiple through holes.

[0043] In some embodiments, the air outlet device further includes a light strip 80, which is disposed in the third rectifier cavity and surrounds the inner wall of the frame; the base plate is made of a light-transmitting material, integrating the airflow rectification device with the lighting fixture design, thus combining airflow regulation and lighting functions.

[0044] In this invention, the guide section directs the gas entering through the air inlet to both sides for initial dispersion. The first region of the first rectifier plate has small and densely packed first air inlet holes, while the second region has larger first air inlet holes. The first region allows gas that has not passed through the guide section to disperse in all directions. The second rectifier plate has grooves that not only further disperse the gas but also reflect the light from the LED strip in the third rectifier cavity, making the lighting more uniform. The base plate is made of high-transmittance PP board with multiple evenly distributed air outlet holes, ensuring uniform gas output. This design is suitable for corrosive laboratory environments and also makes the lighting more uniform and softer.

[0045] This device employs a multi-layered rectification structure design, ensuring that the airflow from the fresh air duct enters the laboratory space evenly and stably, avoiding interference with the exhaust system. Simultaneously, it innovatively integrates the airflow rectification device with lighting fixtures, combining airflow regulation and lighting functions, significantly reducing ceiling space occupation and improving laboratory space utilization and overall aesthetics.

[0046] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. An air outlet device, characterized in that, It includes a housing, a first rectifier plate (20) and a second rectifier plate (30), both of which are disposed inside the housing, and divide the internal space of the housing into a first rectifier cavity, a second rectifier cavity and a third rectifier cavity; The housing is provided with an air inlet (101) communicating with the first rectifier cavity, and the housing is also provided with a plurality of air outlets (111) communicating with the third rectifier cavity. The first rectifier cavity is provided with at least two flow guides (40), and the at least two flow guides (40) are respectively provided on both sides of the air inlet (101). The flow guides (40) are used to guide the gas entering at the air inlet (101) to the first rectifier cavity. The first rectifier plate (20) is provided with a plurality of first air inlet holes (201) to connect the first rectifier cavity with the second rectifier cavity; The second rectifier plate (30) is provided with a plurality of second air inlet holes (301) to connect the second rectifier cavity with the third rectifier cavity.

2. The air outlet device according to claim 1, characterized in that, The flow guide (40) is disposed on the inner wall of the first rectifier cavity on the side where the air inlet (101) is disposed. A flow guide channel (44) is formed between the flow guide (40) and the inner wall of the first rectifier cavity. One end of the flow guide channel (44) is connected to the air inlet (101), and the other end of the flow guide channel (44) is open. A plurality of third air inlet holes (401) are provided on the channel wall of the flow guide channel (44) to connect the flow guide channel (44) with the first rectifier cavity. There is a gap between the flow guide channels (44) of at least two of the flow guides (40) facing the air inlet (101) so that some of the gas entering through the air inlet (101) can pass through.

3. The air outlet device according to claim 2, characterized in that, The flow guide (40) includes a flow guide surface (42) and a flow rectifying surface (41) connected to each other. The flow guide surface (42) faces the air inlet (101), and the flow rectifying surface (41) faces the first flow rectifying plate (20). The flow guide surface (42) forms an angle with the axial section of the air inlet (101), and the flow rectifying surface (41) is perpendicular to the axial section of the air inlet (101). The third air inlet through hole (401) is formed on the flow rectifying surface (41). The flow rectifying surface (41) has side plates (43) on both sides along the width direction of the flow guide channel (44), and the side plates (43) are connected to the inner wall of the first flow rectifying cavity.

4. The air outlet device according to claim 2, characterized in that, The first rectifier plate (20) is perpendicular to the axis of the air inlet (101). The first rectifier plate (20) is divided into a first region (22) and a second region (23) surrounding the first region (22). The first region (22) corresponds to the air inlet (101). The diameter of the first air inlet hole (201) in the first region (22) is smaller than the diameter of the first air inlet hole (201) in the second region (23).

5. The air outlet device according to claim 4, characterized in that, The distribution density of the first air inlet hole (201) in the first region (22) is greater than that of the first air inlet hole (201) in the second region (23).

6. The air outlet device according to claim 4, characterized in that, The second rectifier plate (30) is perpendicular to the axis of the air inlet (101). The second rectifier plate (30) is divided into a third region and two fourth regions located on both sides of the third region. A groove (302) extending along the length direction of the second rectifier plate (30) is recessed on the surface of the third region facing the air inlet (101).

7. The air outlet device according to claim 6, characterized in that, The groove (302) has a V-shaped cross-section, and the included angle between the two sidewalls of the groove (302) is an obtuse angle.

8. The air outlet device according to any one of claims 1-7, characterized in that, The housing includes a top plate and a bottom plate disposed opposite to each other, and a frame connecting the top plate and the bottom plate. The space between the top plate and the first rectifier plate (20) is the first rectifier cavity, the space between the first rectifier plate (20) and the second rectifier plate (30) is the second rectifier cavity, and the space between the second rectifier plate (30) and the bottom plate is the third rectifier cavity. The air inlet (101) is formed on the top plate, and the air outlet (111) is formed on the bottom plate. The top plate is provided with a hanging ring structure (60) for fixed connection with the wall, and the frame is provided with a hanging ear structure (70) for fixed connection with the wall.

9. The air outlet device according to claim 8, characterized in that, The inner sidewall of the frame is provided with a first overlapping edge (21) and a second overlapping edge (31) surrounding the inner side of the frame. The first overlapping edge (21) overlaps with the first rectifier plate (20), and the second overlapping edge (31) overlaps with the second rectifier plate (30). Both the first overlapping edge (21) and the second overlapping edge (31) are provided with multiple through holes.

10. The air outlet device according to claim 8, characterized in that, It also includes a light strip (80), which is disposed in the third rectifier cavity and surrounds the inner wall of the frame; the base plate is made of a light-transmitting material.

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