A fume hood with adjustable deflector plate
By designing an adjustable deflector in the fume hood to adjust the internal space of the cabinet, the harmful gas leakage caused by too little negative pressure in the existing fume hood is solved, and higher negative pressure and lower energy consumption and noise are achieved.
Patent Information
- Application Number
- CN202421206542.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The existing fume hood has a large internal space, which leads to too small negative pressure, which increases the risk of harmful gas leakage, which in turn causes problems such as increased energy consumption and increased noise.
A deflector adjustable fume hood is designed to adjust the size of the internal space of the cabinet body through the rotation of the deflector, thereby increasing negative pressure, reducing air exhaust, preventing harmful gases from overflowing, and reducing energy consumption and noise.
By adjusting the angle of the deflector, the internal space of the fume hood is adjusted, which achieves higher negative pressure, reduces air exhaust, reduces energy consumption and noise, and effectively prevents the overflow of harmful gases.
Smart Images
Figure CN222710427U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fume hoods, in particular to a fume hood with an adjustable guide plate. Background Art
[0002] In the existing fume hood design, there is usually a large internal space to meet the personalized space requirements of various users. However, due to the large size of the space, the negative pressure generated inside the cabinet will be small when the air is discharged. This condition of too low negative pressure will increase the risk of harmful gas leakage indoors. In order to ensure that the negative pressure inside the cabinet is maintained at a safe level and prevent the leakage of harmful gases, the fume hood needs to have a strong exhaust capacity, which may cause a series of problems, such as increased energy consumption and increased noise. Utility Model Content
[0003] The utility model aims to overcome the shortcomings of the prior art and proposes to design a fume hood with an adjustable guide plate, which can adjust the size of the internal space of the cabinet, prevent harmful gases from overflowing, and reduce energy consumption and noise.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A fume hood with adjustable guide plate, comprising a hood body; and further comprising:
[0006] The guide plate is arranged in the cabinet, one end of which is connected to the inner lining plate of the cabinet through a rotating shaft, and the other end of which is connected to the inner lining plate of the cabinet through a guide plate wheel shaft;
[0007] The synchronous pulley is fixedly mounted on the deflector wheel shaft;
[0008] A motor is fixed on the cabinet, and an output end of the motor is connected to a motor wheel;
[0009] The synchronous belt is installed on the synchronous pulley and the motor pulley.
[0010] The above technical solution can drive the motor wheel to rotate through the motor, and the motor wheel drives the guide plate wheel shaft to rotate, thereby driving the guide plate to rotate, and the size of the internal space of the fume hood can be adjusted by changing the angle of the guide plate. By reducing the internal space of the cabinet, the negative pressure can be increased, the exhaust volume can be reduced, and the overflow of harmful gases can be avoided, while also reducing energy consumption and noise.
[0011] Furthermore, the guide plate axle is connected to the inner lining plate of the cabinet through a bearing.
[0012] Furthermore, an air outlet is arranged on the top of the cabinet, and the guide plate is located below the air outlet.
[0013] Furthermore, the guide plate is connected to the strip block above or below via a fixing seat, one end of the strip block is connected to the inner lining plate of the cabinet via a rotating shaft, and the other end is connected to the guide plate axle.
[0014] Furthermore, the guide plates are provided in more than one group, such as two groups, three groups, etc.
[0015] Technical effects of the utility model:
[0016] Compared with the prior art, the utility model provides a fume hood with an adjustable guide plate, which adjusts the size of the internal space of the cabinet by adjusting the guide plate. By reducing the internal space, the smaller the internal space is, the higher the negative pressure is, which is more conducive to preventing the overflow of harmful gases. Under the same negative pressure conditions, the smaller the space is, the smaller the exhaust volume is, the lower the energy consumption is, and the lower the noise is. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a fume hood with adjustable guide plates according to the utility model;
[0018] Figure 2 For this utility model Figure 1 A magnified view of the structure of part A;
[0019] Figure 3 This is a structural schematic diagram of another angle of the utility model of the fume hood with adjustable guide plate;
[0020] Figure 4 It is a schematic diagram of the structure of the guide plate, fixing seat and strip block of the utility model.
[0021] In the figure, 1. cabinet; 2. guide plate; 3. guide plate axle; 4. synchronous pulley; 5. motor; 6. motor wheel; 7. synchronous belt; 8. exhaust port; 9. fixing seat; 10. strip block. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is clearly and completely described below in conjunction with the accompanying drawings of the specification. Example
[0023] like Figure 1-3 As shown, the present embodiment involves a fume hood with an adjustable deflector plate, comprising a cabinet body 1, a deflector plate 2, a deflector plate shaft 3, a synchronous pulley 4, a motor 5, a motor wheel 6 and a synchronous belt 7.
[0024] An air outlet 8 is disposed on the top of the cabinet 1 , and a guide plate 2 is disposed below the air outlet 8 .
[0025] The deflector 2 is arranged in the cabinet 1, one end of which is connected to the inner lining of the cabinet 1 through a rotating shaft, and the other end is connected to the deflector axle 3. The deflector axle 3 is connected to the inner lining of the cabinet 1 through a bearing, and a synchronous pulley 4 is fixed on the deflector axle 3.
[0026] The motor 5 is fixed on the cabinet 1 , a motor wheel 6 is fixed to the output end of the motor 5 , and the synchronous belt 7 is installed on the synchronous belt wheel 4 and the motor wheel 6 .
[0027] like Figure 1 As shown, the guide plates 2 of this embodiment are provided in two groups, and each group of guide plates 2 is driven by a corresponding motor 5 and controlled independently. Figure 4 As shown, the guide plate 2 of this embodiment is connected to the strip block 10 through a fixing seat 9 at the top, one end of the strip block 10 is connected to the inner lining plate of the cabinet 1 through a rotating shaft, and the other end is connected to the guide plate axle 3.
[0028] Working principle: When using a fume hood, the operator can adjust the size of the internal space of the cabinet according to actual usage. When adjusting the internal space, the motor 5 is powered on, and the motor wheel 6 drives the synchronous belt 7 and then drives the guide plate wheel shaft 3 on the guide plate 2 to rotate, and then drives the guide plate 2 to rotate, and changes the angle of the guide plate 2 to adjust the size of the internal space of the fume hood. In practical applications, the internal space of the cabinet can be appropriately reduced according to actual usage. Under the same exhaust volume conditions, the smaller the internal space, the higher the negative pressure, which is more conducive to preventing harmful gases from overflowing. Under the same negative pressure conditions, the smaller the space, the smaller the exhaust volume, the lower the energy consumption, and the lower the noise.
[0029] The above-mentioned specific implementation methods are only specific cases of the present utility model. The patent protection scope of the present utility model includes but is not limited to the above-mentioned specific implementation methods. Any appropriate changes or modifications made to them by ordinary technicians in the relevant technical field in accordance with the claims of the present utility model shall fall within the patent protection scope of the present utility model.
Claims
1. A fume hood with an adjustable deflector plate, comprising a hood body (1); characterized in that: Also includes: A guide plate (2) is arranged in the cabinet (1), one end of which is connected to the inner lining plate of the cabinet (1) via a rotating shaft, and the other end of which is connected to the inner lining plate of the cabinet (1) via a guide plate wheel shaft (3); A synchronous pulley (4) fixedly mounted on the deflector wheel shaft (3); A motor (5) is fixed on the cabinet (1), and an output end of the motor (5) is connected to a motor wheel (6); A synchronous belt (7) is mounted on the synchronous belt pulley (4) and the motor pulley (6).
2. The fume hood with adjustable deflector plate according to claim 1, characterized in that: The deflector wheel shaft (3) is connected to the inner lining plate of the cabinet (1) via a bearing.
3. The fume hood with adjustable deflector plate according to claim 1, characterized in that: An air outlet (8) is provided on the top of the cabinet (1), and the guide plate (2) is located below the air outlet (8).
4. The fume hood with adjustable deflector plate according to claim 1, characterized in that: The guide plate (2) is connected to the strip block (10) via a fixing seat (9) at the top or bottom; one end of the strip block (10) is connected to the inner lining plate of the cabinet (1) via a rotating shaft, and the other end is connected to the guide plate wheel shaft (3).
5. The fume hood with adjustable deflector plate according to any one of claims 1 to 4, characterized in that: The guide plates (2) are provided in two groups.