Gas-collecting hood convenient to adjust

Abstract

The utility model discloses a gas-collecting hood convenient to adjust, which comprises a shell I, a shell II arranged at the top of the shell I, an adjusting assembly arranged in the shell II, the adjusting assembly comprises a mounting rack, the mounting rack is arranged in the shell II, a bearing seat is arranged at the top of the mounting rack, a bevel gear II is rotationally arranged on the bearing seat, and a bevel gear II is arranged on the bevel gear II. A rotating hole is formed in one side of the second shell, a first bevel gear is rotationally installed in the hole and meshed with the second bevel gear, a servo motor is installed on the outer side of the second shell through a support, and the output end of the servo motor is connected with the first bevel gear. The servo motor is driven by the control module, the sector plate is rotated, air inlet holes can be selected, the air inlet speed can be conveniently adjusted, and the air inlet speed can be automatically adjusted without being manually adjusted.

Description

Technical Field

[0001] This utility model relates to the field of gas collection hood technology, and in particular to a gas collection hood that is easy to adjust. Background Technology

[0002] A fume hood is a device used in industrial production to control and collect harmful gases or dust. It effectively isolates pollutants at their source and guides them to the appropriate treatment system. The design and installation of fume hoods are crucial for improving waste gas treatment efficiency, protecting worker health, and meeting environmental regulations. Current fume hoods are inconvenient for replacing filters and cannot adjust the air intake speed. To address this, a more adjustable fume hood is proposed, which allows for adjustment of the air intake speed and uses multiple filter components to absorb and filter waste gas. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an easily adjustable gas collection hood.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An easily adjustable gas collection hood includes an outer shell, a second outer shell mounted on the top of the first outer shell, and an adjustment assembly installed in the second outer shell. The adjustment assembly includes a mounting bracket installed in the second outer shell, a bearing seat mounted on the top of the mounting bracket, a bevel gear two rotatably mounted on the bearing seat, a rotating hole provided on one side of the second outer shell, and a bevel gear one rotatably mounted in the hole, the bevel gear one meshing with the bevel gear two. A servo motor is mounted on the outside of the second outer shell via a bracket, the output end of the servo motor being connected to the bevel gear one. The gas collection hood also includes a control module, and the servo motor is electrically connected to the control module.

[0006] As a further improvement of this utility model: the adjustment component also includes a sector plate, which is mounted on the top of the bevel gear two via a rotating shaft, and the sector plate is provided with a number of symmetrical sector holes.

[0007] As a further improvement of this utility model: the adjustment component also includes an air intake plate, which is installed inside the outer casing and positioned on top of the fan-shaped plate. Several sets of air intake holes of different sizes are provided on the air intake plate, and the air intake holes of the same size are symmetrically distributed.

[0008] As a further embodiment of this utility model: the gas collection hood further includes a first filter assembly, the first filter assembly includes a filter plate, a third outer shell is installed on the top of the second outer shell, an opening is provided on one side of the third outer shell, the filter plate is installed in the opening, and a plurality of filter holes are provided on the filter plate.

[0009] As a further embodiment of this utility model: the first filter assembly includes a handle, which is installed on the outer surface of the filter plate, a buckle is provided on the surface of the outer shell, and a slot is provided on the top of the filter plate below the buckle.

[0010] As a further embodiment of this utility model: the gas collection hood also includes a fourth outer shell, which is installed on top of the third outer shell. An annular cylinder is provided at the bottom of the fourth outer shell, and a window is provided on the side of the fourth outer shell. A second filter assembly is provided at the bottom of the fourth outer shell. The second filter assembly includes an arc-shaped support base, and several arc-shaped support bases are provided. The arc-shaped support bases are installed inside the annular cylinder at the bottom of the fourth outer shell. A conical piece is installed on the top of the arc-shaped support base, and several filter elements are provided at the bottom of the fourth outer shell.

[0011] As a further improvement of this utility model, the gas collection hood also includes a ventilation fan, which is installed on the top inner side of the outer casing four by a bracket, and the ventilation fan is electrically connected to the control module.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. By driving the servo motor through the control module to rotate the sector plate, the air intake hole can be selected, making it easy to adjust the air intake speed. The adjustment can be automated, eliminating the need for manual adjustment of the air intake speed.

[0014] 2. By making the filter plate detachable, it is easy to replace the filter plate later. The replacement method is simple and quick, saving maintenance time.

[0015] 3. The control module drives the ventilation fan to create a negative pressure inside the outer casing, drawing the exhaust gas into the outer casing. During the intake process, the exhaust gas is filtered by the filter before being discharged, reducing air pollution. The conical part allows the exhaust gas to pass through the filter, making it easier for large particles to accumulate at the bottom of the outer casing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an easily adjustable gas collection hood proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the adjustment component proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the air intake plate installation structure proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the first filter component proposed in this utility model;

[0020] Figure 5This is a schematic diagram of the cross-sectional structure of an easily adjustable gas collection hood proposed in this utility model.

[0021] In the diagram: 1-Outer shell one, 2-Outer shell two, 3-Outer shell four, 4-Servo motor, 5-Bevel gear one, 6-Mounting bracket, 7-Bearing seat, 8-Bevel gear two, 9-Sector plate, 10-Inlet plate, 11-Outer shell three, 12-Filter plate, 13-Handle, 14-Snap fastener, 15-Exhaust fan, 16-Arc-shaped support base, 17-Conical component, 18-Filter component. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0023] 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 below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] Example 1

[0025] An easily adjustable gas collection hood, such as Figure 1 As shown, the device includes a first outer shell 1, a second outer shell 2 mounted on the top of the first outer shell 1, and an adjustment assembly installed in the second outer shell 2. The adjustment assembly includes a mounting bracket 6, which is installed in the second outer shell 2. A bearing seat 7 is mounted on the top of the mounting bracket 6, and a bevel gear 8 is rotatably mounted on the bearing seat 7. A rotating hole is provided on one side of the second outer shell 2, and a bevel gear 5 is rotatably mounted in the hole. The bevel gear 5 meshes with the bevel gear 8. A servo motor 4 is mounted on the outside of the second outer shell 2 via a bracket. The output end of the servo motor 4 is connected to the bevel gear 5. The gas collection hood also includes a control module, and the servo motor 4 is electrically connected to the control module.

[0026] This device is further configured as follows: Figure 2 As shown, the adjustment assembly also includes a sector plate 9, which is mounted on the top of the bevel gear 8 via a rotating shaft. The sector plate 9 has a number of symmetrical sector holes.

[0027] This device is further configured as follows: Figure 3 As shown, the adjustment assembly also includes an air intake plate 10, which is installed inside the outer casing 2 and located on top of the fan-shaped plate 9. The air intake plate 10 has several sets of air intake holes of different sizes, and the air intake holes of the same size are symmetrically distributed.

[0028] The servo motor 4 is driven by the control module to rotate the fan-shaped plate 9, which allows the selection of the air intake hole and facilitates the adjustment of the air intake speed. The air intake speed can be adjusted automatically without manual adjustment.

[0029] This device is further configured as follows: Figure 4 As shown, the gas collection hood also includes a first filter assembly, which includes a filter plate 12. A third outer shell 11 is installed on the top of the second outer shell 2. An opening is provided on one side of the third outer shell 11. The filter plate 12 is installed in the opening and has a plurality of filter holes.

[0030] This device is further configured as follows: Figure 4 As shown, the first filter assembly includes a handle 13, which is mounted on the outer surface of the filter plate 12. A buckle 14 is provided on the surface of the outer casing 11, and a slot is provided on the top of the filter plate 12 below the buckle 14.

[0031] By making the filter plate 12 a detachable structure, it is easy to replace the filter plate 12 later. The replacement method is simple and quick, saving maintenance time.

[0032] This device is further configured as follows: Figure 1 , 5 As shown, the gas collection hood also includes a fourth outer shell 3, which is installed on top of the third outer shell 11. An annular cylinder is provided at the bottom of the fourth outer shell 3, and a window is provided on the side of the fourth outer shell 3. A second filter assembly is provided at the bottom of the fourth outer shell 3. The second filter assembly includes an arc-shaped support 16, and several arc-shaped support 16s are provided. The arc-shaped support 16s are installed inside the annular cylinder at the bottom of the fourth outer shell 3. A conical piece 17 is installed on the top of the arc-shaped support 16, and several filter elements 18 are provided at the bottom of the fourth outer shell 3.

[0033] This device is further configured as follows: Figure 5 As shown, the air collection hood also includes a ventilation fan 15, which is mounted on the top inner side of the outer casing 3 via a bracket, and is electrically connected to the control module.

[0034] The control module drives the ventilation fan 15 to create a negative pressure inside the outer casing 3, drawing exhaust gas into the outer casing 3. During the intake process, the exhaust gas is filtered by the filter element 18 before being discharged, reducing air pollution. By setting the conical element 17, the exhaust gas can pass through the filter element 18, which facilitates the accumulation of large particles at the bottom of the outer casing 3.

[0035] Working principle: After the gas collection hood is installed, the control module drives the ventilation fan 15 to draw the exhaust gas into the device. The exhaust gas is filtered by the first filter component and the second filter component to reduce the dust in the exhaust gas. The intake speed can be adjusted by using the adjustment component. If the filter plate 12 needs to be replaced, the buckle 14 can be opened to remove the filter plate 12. The filter element 18 can be replaced by opening the window on the outer casing 3.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An easily adjustable gas collecting hood, characterized in that: The invention comprises a housing (1), a housing (2) is mounted on the top of the housing (1), an adjustment component is mounted in the housing (2), the adjustment component comprises a mounting frame (6), the mounting frame (6) is mounted in the housing (2), a bearing seat (7) is mounted on the top of the mounting frame (6), a bevel gear (8) is rotatably mounted on the bearing seat (7), a rotation hole is provided on one side of the housing (2), a bevel gear (5) is rotatably mounted in the hole, the bevel gear (5) is meshed with the bevel gear (8), a servo motor (4) is mounted on the outer side of the housing (2) through a bracket, the output end of the servo motor (4) is connected to the bevel gear (5), and the air collecting hood also comprises a control module, the servo motor (4) is electrically connected to the control module.

2. The easily adjustable gas collecting hood according to claim 1, characterized in that: The adjustment assembly further comprises a sector plate (9), which is mounted on the top of the second bevel gear (8) via a rotating shaft, and a plurality of symmetrical sector holes are arranged on the sector plate (9).

3. The easily adjustable gas collecting hood according to claim 2, characterized in that: The regulating assembly also includes an air intake plate (10), which is installed inside the second housing (2) and arranged on the top of the fan-shaped plate (9). A plurality of groups of air intake holes of different sizes are arranged on the air intake plate (10), and the air intake holes of the same size are symmetrically distributed.

4. The easily adjustable gas collecting hood according to claim 3, characterized in that: The gas collecting hood also includes a first filter assembly, which includes a filter plate (12). The outer shell three (11) is installed on the top of the outer shell two (2), an opening is provided on one side of the outer shell three (11), the filter plate (12) is installed in the opening, and a plurality of filter holes are provided on the filter plate (12).

5. The easily adjustable gas collecting hood according to claim 4, characterized in that: The first filter assembly comprises a handle (13), the handle (13) being mounted on the outer surface of the filter plate (12), a buckle (14) being arranged on the surface of the outer shell (11), and a slot being arranged at the top of the filter plate (12) below the buckle (14).

6. The easily adjustable gas collecting hood according to claim 5, characterized in that: The air collecting hood also includes a shell four (3), the shell four (3) is installed on the top of the shell three (11), an annular cylinder is arranged at the bottom of the shell four (3), a window is arranged on the side of the shell four (3), and a second filter component is arranged at the bottom of the shell four (3), the second filter component includes an arc-shaped support seat (16), and the arc-shaped support seat (16) is provided with a plurality of arc-shaped support seats (16), which are installed inside the annular cylinder at the bottom of the shell four (3), a conical member (17) is installed on the top of the arc-shaped support seat (16), and a plurality of filter members (18) are arranged at the bottom of the shell four (3).

7. The easily adjustable gas collecting hood according to claim 6, characterized in that: The air collecting hood further comprises a ventilation fan (15), which is mounted on the inner side of the top of the outer shell four (3) through a bracket, and the ventilation fan (15) is electrically connected to the control module.

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