A waste gas treatment device of a laboratory fume hood

Abstract

The utility model discloses a laboratory fume hood's waste gas treatment device, including installation frame, flip, filter and handle, the flip is hinged on the installation frame, the filter is installed in the installation frame, and the filter can dismantle, and the handle is fixedly connected to the filter top, still include waste gas treatment subassembly and locking assembly, waste gas treatment subassembly is used for when the waste gas enters the inside of installation frame to the harmful substance in the waste gas and handles, and locking assembly is used for locking the flip. The utility model discloses innovative "double limiting piece and torsional spring reset " linkage locking mechanism, when the flip closes can form the sealing structure of rigorous stable, can effectively avoid the waste gas leakage risk of accidental opening in the equipment operation process, provides reliable guarantee for laboratory environment safety.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a waste gas treatment device for a laboratory fume hood. Background Technology

[0002] In the daily operation of a laboratory, chemical experiments and sample analysis inevitably generate waste gases containing organic pollutants and particulate matter. If these waste gases are discharged directly without treatment, they will not only pollute the external environment but may also pose a serious threat to the health of laboratory personnel. Therefore, achieving compliant emissions through the coordinated operation of fume hoods and waste gas treatment devices has become a crucial aspect of laboratory environmental management.

[0003] The waste gas treatment devices widely used in laboratories today have revealed numerous problems in both structural design and practical application. Regarding sealing performance, some devices rely solely on a single locking structure to secure the flip cover, resulting in insufficient sealing reliability. During operation, strong vibrations or human error can easily cause the flip cover to open accidentally, leading to the leakage of untreated waste gas and severely compromising laboratory environmental safety. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a waste gas treatment device for laboratory fume hoods. This utility model adopts an innovative "double limiting component and torsion spring reset" linkage locking mechanism. When the flip cover is closed, it can form a tight and stable sealing structure, which can effectively avoid the risk of waste gas leakage caused by accidental opening during equipment operation and provide reliable protection for laboratory environmental safety.

[0005] The technical solution provided by this utility model to solve the above problems is as follows: a waste gas treatment device for a laboratory fume hood, including a mounting frame, a flip cover, a filter, and a handle. The flip cover is hinged to the mounting frame, the filter is installed inside the mounting frame, the filter is detachable, and the handle is fixed to the top of the filter. It also includes a waste gas treatment component and a locking component. The waste gas treatment component is used to treat harmful substances in the waste gas when the waste gas enters the interior of the mounting frame, and the locking component is used to lock the flip cover.

[0006] Preferably, the flip cover includes a first sealing strip and a plurality of second sealing strips, the first sealing strip being adhered to the inner wall of the flip cover, and the plurality of second sealing strips being symmetrically adhered to the inner wall of the flip cover.

[0007] Preferably, the exhaust gas treatment component includes several base plates, several photolysis lamps, and several baffles. The flip cover has several mounting channels. Several base plates are respectively connected to the mounting channels of the flip cover by bolts. Several photolysis lamps are inserted into the corresponding base plates. Several baffles are respectively fixed to the inside of the mounting frame and the inner wall of the flip cover.

[0008] Preferably, the baffles are arranged in an alternating pattern.

[0009] Preferably, the locking assembly includes a first limiting member, a plurality of torsion springs and a plurality of second limiting members. The first limiting member is rotatably connected to the mounting frame, the plurality of torsion springs are respectively connected between the first limiting member and the mounting frame, and the plurality of second limiting members are symmetrically rotatably connected to the mounting frame.

[0010] Preferably, both the first limiting member and the second limiting member are in contact with the flip cover to lock and limit the flip cover.

[0011] Compared with the prior art, the advantages of this utility model are: 1. This utility model adopts an innovative "double limiting component and torsion spring reset" linkage locking mechanism, which can form a tight and stable sealing structure after the flip cover is closed, effectively avoiding the risk of exhaust gas leakage caused by accidental opening during equipment operation, and providing reliable protection for laboratory environmental safety.

[0012] 2. Construct a three-stage treatment architecture of "preliminary filtration and impurity removal, staggered baffle guidance, and deep photolysis decomposition". By optimizing the residence time of exhaust gas in the reaction chamber, ensure that pollutants are fully exposed to photolysis radiation, thereby significantly improving the exhaust gas purification efficiency.

[0013] 3. The modular component design supports reverse disassembly, and component replacement can be completed by following the standardized assembly process, which greatly shortens the equipment maintenance cycle, reduces the difficulty of manual operation and maintenance costs, and achieves an organic balance between efficient operation and economic cost. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0015] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention in its first state.

[0016] Figure 2 This is a schematic diagram of the second three-dimensional structure of the first state of this utility model.

[0017] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the first state of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the second state of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of part of this utility model.

[0020] Attached diagram labels: 1. Mounting frame; 2. Flip cover; 21. First sealing strip; 22. Second sealing strip; 3. Base plate; 4. Photolysis lamp; 5. Baffle; 6. First limiting component; 7. Torsion spring; 8. Second limiting component; 9. Filter; 10. Handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. The term "comprising" and any variations thereof in the specification, claims, and accompanying drawings of the present utility model are intended to cover non-exclusive inclusion.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Furthermore, it should be understood in the description of this utility model that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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.

[0024] Example: As shown in the attached figure, a laboratory fume hood exhaust gas treatment device includes a mounting frame 1, a flip cover 2, a filter 9, and a handle 10. The flip cover 2 is hinged to the rear side of the mounting frame 1. The filter 9 is installed inside the mounting frame 1 on the right side and is detachable. The handle 10 is fixed to the top of the filter 9. The device also includes an exhaust gas treatment component and a locking component. The exhaust gas treatment component is used to treat harmful substances in the exhaust gas when it enters the interior of the mounting frame 1. The locking component is used to lock the flip cover 2.

[0025] The flip cover 2 includes a first sealing strip 21 and two second sealing strips 22. The first sealing strip 21 is adhered to the front side of the inner wall of the flip cover 2, and the two second sealing strips 22 are symmetrically adhered to the inner wall of the flip cover 2.

[0026] In this embodiment, specifically, the exhaust gas treatment component includes three base plates 3, three photolysis lamps 4, and seven baffles 5. The flip cover 2 has three mounting channels. The three base plates 3 are respectively bolted to the mounting channels of the flip cover 2. The three photolysis lamps 4 are inserted into the corresponding base plates 3. The seven baffles 5 are respectively fixed to the inside of the mounting frame 1 and the inner wall of the flip cover 2. The baffles 5 are staggered. The locking component includes a first limiting member 6, two torsion springs 7, and two second limiting members 8. The first limiting member 6 is rotatably connected to the front side of the mounting frame 1. The two torsion springs 7 are respectively connected between the first limiting member 6 and the mounting frame 1. The two second limiting members 8 are symmetrically rotatably connected to the mounting frame 1. The first limiting member 6 and the second limiting member 8 are both in contact with the flip cover 2 and are used to lock and limit the flip cover 2.

[0027] In the above technical solution, the filter 9 is first precisely installed into the mounting frame 1 using the handle 10, completing the initial deployment of the filter assembly. Then, the photolysis lamp 4 is inserted into the preset interface on the base plate 3, and the base plate 3 with the photolysis lamp 4 is firmly fixed in the mounting channel of the flip cover 2 using bolts, ensuring the stable installation of the photolysis assembly. Next, the second limiting member 8 is rotated to avoid the rotation path of the flip cover 2. Then, the flip cover 2 is rotated while the first limiting member 6 is pulled outward. At this time, the torsion spring 7 deforms, helping the flip cover 2 to close smoothly. It should be noted that the inner baffles 5 of the flip cover 2 are arranged in an alternating structure at this time. After the first limiting member 6 is released, the torsion spring 7 returns to its original position under the action of elasticity, causing the first limiting member 6 to rotate automatically, achieving the initial locking of the flip cover 2. Finally, the second limiting member 8 is rotated again to form a secondary limiting. Through the double locking design, the flip cover 2 can be effectively prevented from opening accidentally during the operation of the device, avoiding direct leakage of untreated waste gas and ensuring the sealing of the treatment process. Once assembled, the mounting frame 1 is fixed in the designated position within the laboratory fume hood, allowing exhaust gas to enter. It first flows through the previously installed filter 9 for initial impurity filtration. Subsequently, the staggered baffles 5 guide the exhaust gas, extending its residence time within the mounting frame 1. This increases the irradiation time of the photolysis lamp 4, significantly improving the decomposition efficiency of pollutants such as organic waste gas. Finally, the thoroughly treated clean gas is discharged through the exhaust vent of the mounting frame 1. When the filter 9 becomes clogged or the photolysis lamp 4 reaches the end of its lifespan and needs replacement, the assembly steps can be reversed: unlock the limiting components, open the flip cover 2, and remove the base plate 3 and filter 9. This easily completes the component replacement, ensuring long-term stable exhaust gas treatment while greatly reducing maintenance difficulty and time costs.

[0028] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A waste gas treatment device for a laboratory fume hood, comprising a mounting frame (1), a flip cover (2), a filter (9), and a handle (10), wherein the flip cover (2) is hinged to the mounting frame (1), the filter (9) is installed inside the mounting frame (1), the filter (9) is detachable, and the handle (10) is fixed to the top of the filter (9), characterized in that, It also includes an exhaust gas treatment component and a locking component. The exhaust gas treatment component is used to treat harmful substances in the exhaust gas when the exhaust gas enters the mounting frame (1), and the locking component is used to lock the flip cover (2).

2. The exhaust gas treatment device for a laboratory fume hood according to claim 1, characterized in that, The flip cover (2) includes a first sealing strip (21) and several second sealing strips (22). The first sealing strip (21) is adhered to the inner wall of the flip cover (2), and several second sealing strips (22) are symmetrically adhered to the inner wall of the flip cover (2).

3. The exhaust gas treatment device for a laboratory fume hood according to claim 1, characterized in that, The exhaust gas treatment component includes several base plates (3), several photolysis lamps (4) and several baffles (5). The flip cover (2) has several mounting channels. Several base plates (3) are respectively connected to the mounting channels of the flip cover (2) by bolts. Several photolysis lamps (4) are inserted into the corresponding base plates (3). Several baffles (5) are respectively fixed to the inside of the mounting frame (1) and the inner wall of the flip cover (2).

4. The exhaust gas treatment device for a laboratory fume hood according to claim 3, characterized in that, The baffles (5) are staggered.

5. The exhaust gas treatment device for a laboratory fume hood according to claim 1, characterized in that, The locking assembly includes a first limiting member (6), several torsion springs (7) and several second limiting members (8). The first limiting member (6) is rotatably connected to the mounting frame (1), the several torsion springs (7) are respectively connected between the first limiting member (6) and the mounting frame (1), and the several second limiting members (8) are symmetrically rotatably connected to the mounting frame (1).

6. The exhaust gas treatment device for a laboratory fume hood according to claim 5, characterized in that, Both the first limiting member (6) and the second limiting member (8) are in contact with the flip cover (2) and are used to lock and limit the flip cover (2).

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