Ventilation cabinet with dust filtering function

Abstract

The utility model discloses a fume hood with a dust filtering function, which is characterized in that a hood body is arranged on the upper surface of a base, an inner partition plate is arranged in the hood body, an inner cavity of the hood body is divided into a lower inner cavity and an upper inner cavity by the inner partition plate, the inner partition plate consists of a transverse plate and a second inclined plate, and a filter screen plate is mounted in the upper inner cavity through bolts; dust can be separated and blocked through the filter screen part of the filter screen plate before passing through the cabinet body and being discharged from the air outlet, filter screen filtering equipment does not need to be independently prepared additionally, cost is greatly reduced, space is saved, the upper baffle is arranged on the upper portion of the cabinet body so that the filter screen plate can be conveniently replaced, and meanwhile the back plate is installed on the rear side face of the cabinet body through bolts so that the dust can be conveniently filtered. And the back plate is of a detachable structure, so that dust accumulated and remained in the cabinet body can be conveniently cleaned.

Description

Technical Field

[0001] This utility model relates to the field of fume hood technology, specifically a fume hood with dust filtration function. Background Technology

[0002] Cabinet-type exhaust hoods, commonly known as fume hoods, are similar to enclosed hoods. Small parts spray painting cabinets and chemical laboratory fume hoods are typical examples of cabinet-type exhaust hood structures. Large chamber-type fume hoods have one side completely open, allowing operators to work inside; they are mainly used for painting large parts and bagging powder materials.

[0003] Currently, when used for bagging powder, the dust is drawn out of the fume hood along with the airflow and then enters a separate dust filter device, which increases costs. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a fume hood with a dust filtration function. Before dust passes through the cabinet and is discharged from the air outlet, it can be separated by the filter screen of the filter plate, eliminating the need for a separate filter screen device, greatly reducing costs and saving space, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fume hood with dust filtration function, comprising a base, a cabinet body, a back panel, an exhaust baffle, an inner partition, and a filter screen. The cabinet body is disposed on the upper surface of the base. The front side of the cabinet body is open, and the back panel is disposed on the rear side of the cabinet body. An exhaust baffle is disposed inside the cabinet body, dividing the cabinet body into an extraction chamber and an inner chamber by the exhaust baffle. An inner partition is disposed inside the cabinet body and at the upper part of the inner chamber. A gap is left at the end of the inner partition away from the front side of the cabinet body. The inner chamber is connected by the inner partition. The cabinet is divided into a lower inner cavity and an upper inner cavity, which are connected to each other through a gap. A first lower fixing plate is provided on the upper surface of the inner partition plate, and a first upper fixing plate is provided at the top of the cabinet body. The first upper fixing plate and the first lower fixing plate correspond to each other. The filter screen is connected to the first upper fixing plate and the first lower fixing plate by bolts. An air outlet is provided on the upper surface of the cabinet body. A through groove is opened on the upper part of the front side of the cabinet body, and an upper baffle is provided at the through groove by bolts. The air outlet is located between the upper baffle and the filter screen.

[0006] The exhaust baffle includes a vertical plate and a first inclined plate. The top of the vertical plate is connected to the first inclined plate. Side fixing plates are provided on both sides inside the cabinet. The two sides of the vertical plate are connected to the side fixing plates by bolts. An inner folding plate is provided inside the cabinet and at the top of the opening. The end of the first inclined plate away from the vertical plate is connected to the inner folding plate by bolts. The vertical plate is densely covered with exhaust holes. The first inclined plate is evenly provided with exhaust channels.

[0007] The inner partition includes a horizontal plate and a second inclined plate, the horizontal plate is connected to the second inclined plate, and the first lower fixing plate is disposed on the upper surface of the second inclined plate.

[0008] Preferably, the present invention provides a fume hood with dust filtration function, wherein the lower surface of the base is provided with several supporting legs, the interior of the base is a hollow structure, and the front and side of the base are provided with several small doors.

[0009] Preferably, the present invention provides a fume hood with dust filtration function, wherein the upper part of the cabinet body at the opening is provided with a second upper fixing plate and a second lower fixing plate, and the second upper fixing plate and the second lower fixing plate are respectively bolted to frame glass.

[0010] Preferably, the present invention provides a fume hood with dust filtration function, wherein the back panel is connected to the cabinet body by bolts.

[0011] Preferably, the present invention provides a fume hood with dust filtration function, wherein the filter plate includes a rectangular frame and a filter screen, the filter screen is installed inside the rectangular frame, and the rectangular frame is connected to a first upper fixed plate and a first lower fixed plate.

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

[0013] The cabinet is equipped with an internal partition, which divides the interior into a lower cavity and an upper cavity. The internal partition consists of a horizontal plate and a second inclined plate. The filter screen is bolted to the upper cavity. Dust passing through the filter screen before being discharged from the air outlet can be blocked, eliminating the need for a separate filter, greatly reducing costs and saving space. The upper part of the cabinet is equipped with a baffle for easy replacement of the filter screen. At the same time, a back panel is bolted to the rear side of the cabinet. The back panel is a removable structure, making it easy to clean the dust accumulated inside the cabinet. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention;

[0015] Figure 2 This is a side view cross-sectional structural diagram of the present invention;

[0016] Figure 3 For the appendix Figure 2 Enlarged structural diagram of point A in the middle.

[0017] In the diagram: 1. Base; 2. Cabinet; 3. Back panel; 4. Filter screen; 5. Extraction chamber; 6. Gap; 7. Lower inner cavity; 8. Upper inner cavity; 9. First lower fixing plate; 10. First upper fixing plate; 11. Air outlet; 12. Upper baffle; 13. Vertical plate; 14. First inclined plate; 15. Side fixing plate; 16. Inner folding plate; 17. Exhaust hole; 18. Exhaust duct; 19. Horizontal plate; 20. Second inclined plate; 21. Support leg; 22. Small door; 23. Second upper fixing plate; 24. Second lower fixing plate; 25. Frame glass; 401. Rectangular frame; 402. Filter screen. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Please see Figure 1-3This utility model provides a technical solution: a fume hood with dust filtration function, including a base 1, a cabinet 2, a back panel 3, an exhaust baffle, an inner partition, and a filter screen 4. The cabinet 2 is provided on the upper surface of the base 1. The front and side of the cabinet 2 are open. A second upper fixing plate 23 and a second lower fixing plate 24 are provided on the upper part of the cabinet 2 at the open. Frame glass 25 is installed on the second upper fixing plate 23 and the second lower fixing plate 24 respectively by bolts. By installing frame glass 25 on the upper part of the open of the cabinet 2, it is convenient to observe the exhaust situation at the exhaust channel 18 of the first inclined plate 14. A back panel 3 is provided on the rear side of the cabinet 2. The back panel 3 is connected to the cabinet 2 by bolts to ensure that the back panel can be disassembled, thereby facilitating the cleaning of dust in the lower inner cavity 7 of the cabinet 1. An exhaust baffle is provided inside the cabinet 2, dividing the cabinet 2 into an extraction chamber 5 and an inner cavity. An inner partition is provided on the upper part of the inner cavity inside the cabinet 2. The inner partition has a gap 6 at one end away from the front side of the cabinet 2. The inner cavity is divided into a lower inner cavity 7 and an upper inner cavity 8 by the inner partition. The lower inner cavity 7 and the upper inner cavity 8 are connected to each other through the gap 6. A first lower fixing plate 9 is provided on the upper surface of the inner partition. A first upper fixing plate 10 is provided at the top of the inside of the cabinet 2. The first upper fixing plate 10 and the first lower fixing plate 9 correspond to each other. The filter screen 4 is connected to the first upper fixing plate 10 and the first lower fixing plate 9 by bolts. An air outlet 11 is provided on the upper surface of the cabinet 2. A through groove is opened on the upper part of the front side of the cabinet 2 and an upper baffle 12 is provided at the through groove by bolts. The air outlet 11 is located between the upper baffle 12 and the filter screen 4. Several support legs 21 are provided on the lower surface of the base 1. The support legs 21 are used to raise and support the whole. The interior of the base 1 is hollow. Several small doors 22 are provided on the front side of the base 1. The small doors 22 are used to cover the interior of the base 1.

[0021] The exhaust baffle includes a vertical plate 13 and a first inclined plate 14. The top of the vertical plate 13 is connected to the first inclined plate 14. Side fixing plates 15 are provided on both sides inside the cabinet 2. The two sides of the vertical plate 13 are connected to the side fixing plates 15 by bolts. An inner folding plate 16 is provided inside the cabinet 2 and at the top of the opening. The end of the first inclined plate 14 away from the vertical plate 13 is connected to the inner folding plate 16 by bolts. The vertical plate 13 is densely covered with exhaust holes 17. The first inclined plate 14 is evenly provided with exhaust channels 18.

[0022] The inner partition includes a horizontal plate 19 and a second inclined plate 20. The horizontal plate 19 is connected to the second inclined plate 20, and a first lower fixing plate 9 is disposed on the upper surface of the second inclined plate 20.

[0023] like Figure 3As shown, the filter plate 4 includes a rectangular frame 401 and a filter 402. The filter 402 is installed inside the rectangular frame 401. The rectangular frame 401 is connected to the first upper fixed plate 10 and the first lower fixed plate 9. The filter plate 4 with this structure can be connected and disassembled with the first upper fixed plate 10 and the first lower fixed plate 9.

[0024] Installation method and operating principle: Connect the cabinet 2 to the base 1, then fix the vertical plate 13 of the exhaust baffle to the side, and connect the first inclined plate 14 to the inner folding plate 16 to complete the installation of the exhaust baffle. Next, install the inner partition in the inner cavity of the cabinet 2, and connect the filter plate 4 to the first and second fixed plates respectively with bolts. Finally, install the back plate 3 to the rear side of the cabinet 2 with bolts, and then install the frame glass 25 at the opening of the cabinet 2 and connect it to the second upper fixed plate 23 and the second lower fixed plate 24 to complete the installation. Before use, connect the pipe to the air outlet 11. During use, through negative pressure, dust is drawn into the lower inner cavity 7 through the exhaust holes 17 and exhaust channels 18 of the exhaust baffle, and then enters the upper inner cavity 8 and is blocked by the filter screen 402 of the filter plate 4. This utility model has a reasonable structure. The cabinet 2 is equipped with an internal partition, which divides the inner cavity of the cabinet 2 into a lower inner cavity 7 and an upper inner cavity 8. The internal partition is composed of a horizontal plate 19 and a second inclined plate 20. The filter screen 4 is installed in the upper inner cavity 8 by bolts. Before dust passes through the cabinet 2 and is discharged from the air outlet 11, it can be partially blocked by the filter screen 402 of the filter screen 4. There is no need to prepare a separate filter screen filtration device, which greatly reduces the cost and saves space. In addition, the upper part of the cabinet 2 is equipped with an upper baffle 12 to facilitate the replacement of the filter screen 4. At the same time, a back plate 3 is installed on the rear side of the cabinet 2 by bolts. The back plate 3 is a detachable structure, which makes it easy to clean the dust accumulated inside the cabinet 2.

[0025] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0026] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fume hood with dust filtration function, characterized in that: Includes a base (1), a cabinet (2), a back panel (3), an exhaust baffle, an inner partition, and a filter screen (4). The cabinet (2) is mounted on the upper surface of the base (1). The front side of the cabinet (2) is open. The back panel (3) is mounted on the rear side of the cabinet (2). An exhaust baffle is mounted inside the cabinet (2). The cabinet (2) is divided into an exhaust chamber (5) and an inner cavity by the exhaust baffle. An inner partition is mounted inside the cabinet (2) and located at the upper part of the inner cavity. A gap (6) is left at the end of the inner partition away from the front side of the cabinet (2). The inner cavity is divided into a lower inner cavity (7) and an upper inner cavity (8) by the inner partition. The lower inner cavity (7) and the upper inner cavity (8) are... The inner cavity (8) is interconnected through gap (6). The upper surface of the inner partition is provided with a first lower fixing plate (9). The top of the cabinet (2) is provided with a first upper fixing plate (10). The first upper fixing plate (10) and the first lower fixing plate (9) correspond to each other. The filter screen (4) is connected to the first upper fixing plate (10) and the first lower fixing plate (9) respectively by bolts. The upper surface of the cabinet (2) is provided with an air outlet (11). The upper part of the front side of the cabinet (2) is provided with a through groove and an upper baffle (12) is provided at the through groove by bolts. The air outlet (11) is located between the upper baffle (12) and the filter screen (4). The exhaust baffle includes a vertical plate (13) and a first inclined plate (14). The top of the vertical plate (13) is connected to the first inclined plate (14). Side fixing plates (15) are provided on both sides inside the cabinet (2). The two sides of the vertical plate (13) are connected to the side fixing plates (15) by bolts. An inner folding plate (16) is provided inside the cabinet (2) and at the top of the opening. The end of the first inclined plate (14) away from the vertical plate (13) is connected to the inner folding plate (16) by bolts. The vertical plate (13) is densely covered with exhaust holes (17). The first inclined plate (14) is evenly provided with exhaust channels (18). The inner partition includes a horizontal plate (19) and a second inclined plate (20). The horizontal plate (19) is connected to the second inclined plate (20), and the first lower fixing plate (9) is disposed on the upper surface of the second inclined plate (20).

2. A fume hood with dust filtration function according to claim 1, characterized in that: The base (1) has several supporting legs (21) on its lower surface. The base (1) has a hollow structure inside. The base (1) has several small doors (22) on its front and side sides.

3. A fume hood with dust filtration function according to claim 1, characterized in that: The cabinet (2) is provided with a second upper fixing plate (23) and a second lower fixing plate (24) at the upper part of the opening. The second upper fixing plate (23) and the second lower fixing plate (24) are respectively fitted with frame glass (25) by bolts.

4. A fume hood with dust filtration function according to claim 1, characterized in that: The back panel (3) is connected to the cabinet (2) by bolts.

5. A fume hood with dust filtration function according to claim 1, characterized in that: The filter plate (4) includes a rectangular frame (401) and a filter (402). The filter (402) is installed inside the rectangular frame (401). The rectangular frame (401) is connected to the first upper fixing plate (10) and the first lower fixing plate (9).

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