Intelligent laboratory fume hood

Abstract

This utility model discloses an intelligent laboratory fume hood, specifically relating to the field of laboratory equipment technology. It includes a cabinet structure and filter blocks. The cabinet structure comprises a cabinet compartment and a top cover. The top cover houses a holding mechanism and a pull-out mechanism, with the filter blocks located inside the pull-out mechanism. Through the coordinated action of the holding and pull-out mechanisms, this utility model allows the receiving plate to move to the right and block the through-hole during filter block replacement, effectively isolating the inside and outside of the top cover and preventing dust from falling into the fume hood. Simultaneously, a spring-loaded spring lifts the filter blocks, and the pull-out mechanism and bag quickly complete the sealing process, allowing replacement without opening the top cover. This simplifies the operation process, prevents particle diffusion, reduces cleaning needs, lowers maintenance costs, and ensures a safe experimental environment.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment technology, and in particular to an intelligent laboratory fume hood. Background Technology

[0002] A smart laboratory fume hood is a modern laboratory device that combines advanced sensing technology, automated control, and IoT functionality to improve safety, energy efficiency, and ease of operation. Its core functionality involves real-time monitoring of air quality inside the hood (such as harmful gas concentrations, temperature, and humidity) using built-in sensors, and dynamically adjusting the exhaust volume using an automatic variable air volume (VAV) system to ensure timely removal of harmful gases while reducing energy consumption.

[0003] The inventors have discovered at least the following problems in the prior art:

[0004] Existing smart laboratory fume hoods require filter replacement after a certain period of use. However, since the filter plates are usually installed on the top of the fume hood, the top cover needs to be removed for replacement, which is very inconvenient.

[0005] In addition, during replacement, the filter plate is installed inside the placement frame, and the placement frame has holes at its bottom to facilitate airflow. In addition, there are a large number of particles inside the filter plate at this time. Therefore, when replacing the filter plate, the particles inside the filter plate will fall directly into the fume hood through the holes of the placement frame. As a result, the fume hood must be cleaned after replacement, which further increases the workload after replacement and limits work efficiency.

[0006] Therefore, this solution provides an intelligent laboratory fume hood to address the aforementioned problems. Utility Model Content

[0007] The purpose of this invention is to provide an intelligent laboratory fume hood to solve the problems existing in the prior art.

[0008] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:

[0009] A smart laboratory fume hood includes a cabinet structure and a filter block. The cabinet structure includes a cabinet compartment and a top cover. The top cover has a holding mechanism and a pull-out mechanism inside, and the filter block is located inside the pull-out mechanism. The holding mechanism includes a placement frame and a support plate that slides left and right inside the placement frame. The support plate has evenly distributed lifting components above it. The lifting components include a top plate and a spring piece fixedly connected below the top plate. The placement frame has two rectangular slots. The pull-out mechanism includes a pull-out plate and four connecting crossbars fixedly connected to one side. The other end of the connecting crossbars is fixedly connected to a docking frame. A hook is fixedly connected to one side of the docking frame. A pressing plate is slidably connected to one side of the pull-out plate.

[0010] Preferably, the placement frame and the receiving plate are respectively provided with through holes one and two evenly distributed, and the receiving plate is provided with embedding grooves evenly distributed, and the top plate is slidably connected to the inside of the embedding grooves.

[0011] Preferably, the inner sidewall of the placement frame is provided with a storage groove, a limiting plate is fixedly connected to the inner wall of the placement frame, and uniformly distributed cut-faced blocks are fixedly connected above the limiting plate, with the cut-faced blocks located inside the rectangular groove.

[0012] Preferably, the limiting plate and the cut-face abutment are both inserted into the inside of the receiving plate, and a docking hole is provided at the top of one end of the receiving plate.

[0013] Preferably, the inside of the docking frame is slidably connected with a plug rod, the top of the plug rod is fixedly connected with a tension spring, and the bottom of the plug rod fits into the docking hole.

[0014] Preferably, a linkage rod is inserted into the two connecting crossbars at the bottom. One end of the linkage rod is fixedly connected to a pressing plate, and the other end of the linkage rod is fixedly connected to a linkage stop block. The linkage stop block cooperates with the inserted rod. A spring piece 2 is fixedly connected to one side of the pressing plate.

[0015] Preferably, a cover is attached to the outside of the hook, the cover is located inside the docking frame, and part of the cover is located inside the storage groove.

[0016] The beneficial effects of this utility model are:

[0017] I. This utility model, through the cooperation of the holding mechanism and the pull-out mechanism, during the filter block replacement process, drives the linkage mechanism by pressing the pressing plate, causing the receiving plate to move to the right and block the through hole one, effectively isolating the inside of the top cover from the outside world, preventing dust or particulate matter from falling into the fume hood, reducing cleaning needs and maintenance workload.

[0018] Second, this utility model, through the cooperation of the holding mechanism and the pull-out mechanism, uses the spring sheet to elastically lift the filter block. With the help of the pull-out mechanism and the bag, the filter block can be quickly bagged and sealed, so that the top cover does not need to be opened for replacement. This not only simplifies the replacement process, but also prevents particle diffusion and ensures the safety of the experimental environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of the cabinet mechanism according to Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the holding mechanism according to Embodiment 1 of this utility model;

[0021] Figure 3This is an embodiment of the present utility model. Figure 2 A schematic diagram of the middle section;

[0022] Figure 4 This is a schematic diagram of the lifting assembly according to Embodiment 1 of this utility model;

[0023] Figure 5 This is a schematic diagram of the pull-out mechanism according to Embodiment 1 of this utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the docking frame and connecting crossbar in Embodiment 1 of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Cabinet structure; 11. Cabinet compartment; 12. Top cover; 13. Through channel; 14. Exhaust port; 2. Filter block;

[0027] 3. Holding mechanism; 31. Placement frame; 32. Through hole one; 33. Storage slot; 34. Support plate; 341. Butt joint hole; 35. Through hole two; 36. Embedding slot; 37. Limiting plate; 38. Cut-faced abutment block;

[0028] 39. Lifting assembly; 391. Top plate; 392. Rectangular groove; 393. Spring clip one;

[0029] 4. Pull-out mechanism; 41. Pull-out plate; 42. Connecting crossbar; 43. Connecting frame; 44. Hook; 45. Bag cover; 46. Pressing plate; 461. Spring piece 2; 47. Linkage rod; 48. Linkage stop block; 49. Insert rod; 491. Tension spring. Detailed Implementation

[0030] Please refer to the following. Figures 1 to 6 As shown, the technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] It should be noted that, in the embodiments of this utility model, the directions shown in the accompanying drawings shall prevail, such as front and back. Figure 1 For the sake of accuracy, the specific details should be as follows: Figure 1 The left side is the front. Figure 1 The right side is the rear; at the same time, as Figure 2 As shown, the horizontal direction is roughly defined as left and right, and the vertical direction is defined as up and down. If a specific orientation changes, the directional indication will also change accordingly.

[0032] This utility model provides an intelligent laboratory fume hood, including a cabinet mechanism 1 and a filter block 2. The cabinet mechanism 1 includes a cabinet compartment 11 and a top cover 12. The top cover 12 is provided with a holding mechanism 3 and a pull-out mechanism 4. The filter block 2 is located inside the pull-out mechanism 4.

[0033] The holding mechanism 3 includes a placement frame 31 and a support plate 34 that slides left and right inside the placement frame 31. The support plate 34 is provided with evenly distributed lifting components 39. The lifting components 39 include a top plate 391 and a spring piece 393 fixedly connected below the top plate 391. The placement frame 31 has two rectangular slots 392.

[0034] The pull-out mechanism 4 includes a pull-out plate 41 and four connecting crossbars 42 fixedly connected to one side. The other end of the connecting crossbars 42 is fixedly connected to a docking frame 43. A hook 44 is fixedly connected to one side of the docking frame 43. A pressing plate 46 is slidably connected to one side of the pull-out plate 41.

[0035] The cabinet mechanism 1 is an intelligent fume hood in the prior art. A through groove 13 is opened on one side of the top cover 12. There is a door at the through groove 13. An exhaust port 14 is set at the top of the through groove 13. A fan is installed inside the exhaust port 14 to guide airflow. The top of the exhaust port 14 is connected to the exhaust pipe. The filter block 2 is the filter plate of the fume hood, which is below the fan.

[0036] In a further embodiment, the placement frame 31 and the receiving plate 34 are respectively provided with through holes 32 and 35 that are evenly distributed. The receiving plate 34 is provided with embedded grooves 36 that are evenly distributed. The top plate 391 is slidably connected to the inside of the embedded grooves 36.

[0037] In this embodiment, through hole 32 and through hole 35 are aligned when the fume hood is in use. However, when replacing them, the pressing plate 46 causes the receiving plate 34 to move a certain distance along with the pull-out mechanism 4, thereby blocking the through hole 32.

[0038] In a further embodiment, the inner sidewall of the placement frame 31 is provided with a storage groove 33, and a limiting plate 37 is fixedly connected to the inner wall of the placement frame 31. A uniformly distributed slit block 38 is fixedly connected above the limiting plate 37, and part of the slit block 38 is located inside the rectangular groove 392.

[0039] In this embodiment, the cut-face block 38 is initially located inside the rectangular groove 392, so that the top plate 391 is always inside the embedded groove 36. When the receiving plate 34 is displaced, the cut-face block 38 will no longer be able to restrict the top plate 391, so that the top plate 391 can temporarily lift the filter block 2, making it convenient for the bottom of the docking frame 43 to pass through the bottom of the filter block 2, thereby allowing the bag 45 to cover the filter block 2.

[0040] In a further embodiment, both the limiting plate 37 and the cut-face abutment block 38 are inserted into the inside of the receiving plate 34, and a docking hole 341 is provided on the upper part of one end of the receiving plate 34.

[0041] In this embodiment, the cross-section of the top plate 391 is an isosceles triangle, so the top plate 391 can be pressed down during the sliding process of the docking frame 43.

[0042] In a further embodiment, a rod 49 is slidably connected up and down inside the docking frame 43, a tension spring 491 is fixedly connected above the rod 49, and the bottom of the rod 49 fits into the docking hole 341.

[0043] In this embodiment, the docking frame 43 is square, and a hook 44 is installed on one side of its side post, so as to support the port of the bag 45.

[0044] In a further embodiment, a linkage rod 47 is inserted into the two connecting crossbars 42 at the bottom. One end of the linkage rod 47 is fixedly connected to the pressing plate 46, and the other end of the linkage rod 47 is fixedly connected to the linkage stop block 48. The linkage stop block 48 cooperates with the insert rod 49. A spring piece 461 is fixedly connected to one side of the pressing plate 46.

[0045] In this embodiment, the insertion rod 49 is provided with a through groove, which can cooperate with the linkage block 48. After the linkage block 48 is inserted into the through groove, the insertion rod 49 will be forced to move down and thus insert into the interior of the docking hole 341, forcing the receiving plate 34 to move a certain distance along with the pull-out mechanism 4.

[0046] In a further embodiment, a bag 45 is hung on the periphery of the hook 44, the bag 45 is located inside the docking frame 43, and part of the bag 45 is located inside the storage groove 33.

[0047] In this embodiment, the bag 45 is a disposable plastic bag with a drawstring at the end, so that it can be hung on the outside of the hook 44 and tied after covering the filter block 2, which facilitates the replacement of the filter block 2 and prevents the particles inside the filter block 2 from falling out during replacement.

[0048] The working principle of this utility model is as follows:

[0049] When filter block 2 needs to be replaced, the door panel at the through slot 13 can be opened directly, and the pressing plate 46 can be pressed down to displace the linkage rod 47 and the linkage block 48, allowing the insertion rod 49 to move downward and insert into the docking hole 341. At this time, the pull plate 41 can be pulled, which will allow the receiving plate 34 to move to the right. However, since one end of the limiting plate 37 is fixed to the inner wall of the placement frame 31, the cut block 38 will be pulled out from the inside of the rectangular slot 392. At this time, the top plate 391 will lift the filter block 2 under the rebound action of the spring piece 393, and the through hole 35 and the through hole 32 will no longer be connected, thus allowing the receiving plate 34 to seal the through hole 32, preventing dust from falling into the top cover 12 of the fume hood, thereby preventing dust from entering the fume hood when replacing filter block 2. This eliminates the need for additional cleaning, reduces workload, and improves work efficiency.

[0050] After the through hole 32 is blocked, the pressing plate 46 can be released. At this time, the insertion rod 49 is pulled back into the docking frame 43 by the tension spring 491. Then, continue to pull the pull plate 41. At this time, the bottom of the docking frame 43 will continuously press down the tension spring 491, so that the bag 45 can be slowly put on the outside of the filter block 2 until the bag 45 completely covers the filter block 2. Then, take the end of the bag 45 out of the hook 44 and tie it tightly. Then replace the new hook 44 and the filter block 2. This not only prevents the particles on the filter block 2 from falling off again and prevents diffusion, but also makes it easier to take out the filter block 2.

[0051] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A smart laboratory fume hood, comprising a cabinet structure (1) and a filter block (2), characterized in that, The cabinet mechanism (1) includes a cabinet compartment (11) and a top cover (12). The top cover (12) is equipped with a holding mechanism (3) and a pull-out mechanism (4). The filter block (2) is located inside the pull-out mechanism (4). The holding mechanism (3) includes a placement frame (31) and a support plate (34) that is slidably connected to the inside of the placement frame (31). The support plate (34) is provided with evenly distributed lifting components (39). The lifting components (39) include a top plate (391) and a spring piece (393) fixedly connected below the top plate (391). The placement frame (31) has two rectangular slots (392). The pull-out mechanism (4) includes a pull-out plate (41) and four connecting crossbars (42) fixedly connected to one side. The other end of the connecting crossbars (42) is fixedly connected to a docking frame (43). A hook (44) is fixedly connected to one side of the docking frame (43). A pressing plate (46) is slidably connected to one side of the pull-out plate (41).

2. The intelligent laboratory fume hood according to claim 1, characterized in that: The placement frame (31) and the receiving plate (34) are respectively provided with a uniformly arranged through hole one (32) and a through hole two (35). The receiving plate (34) is provided with a uniformly arranged embedding groove (36) on its upper part. The top plate (391) is slidably connected to the inside of the embedding groove (36).

3. The intelligent laboratory fume hood according to claim 1, characterized in that: The inner sidewall of the placement frame (31) is provided with a storage groove (33), and a limiting plate (37) is fixedly connected to the inner wall of the placement frame (31). A uniformly distributed cut surface block (38) is fixedly connected above the limiting plate (37), and part of the cut surface block (38) is located inside the rectangular groove (392).

4. The intelligent laboratory fume hood according to claim 3, characterized in that: The limiting plate (37) and the cut-face abutment block (38) are both inserted into the inside of the receiving plate (34), and a docking hole (341) is provided on the upper part of one end of the receiving plate (34).

5. The intelligent laboratory fume hood according to claim 1, characterized in that: The docking frame (43) is internally connected to a sliding rod (49), and a tension spring (491) is fixedly connected above the rod (49). The bottom of the rod (49) fits into the docking hole (341).

6. The intelligent laboratory fume hood according to claim 1, characterized in that: The two connecting crossbars (42) at the bottom are internally connected to a linkage rod (47). One end of the linkage rod (47) is fixedly connected to a pressing plate (46), and the other end of the linkage rod (47) is fixedly connected to a linkage stop (48). The linkage stop (48) cooperates with the insert rod (49). A second spring piece (461) is fixedly connected to one side of the pressing plate (46).

7. The intelligent laboratory fume hood according to claim 1, characterized in that: A cover (45) is hung on the outside of the hook (44). The cover (45) is located inside the docking frame (43), and part of the cover (45) is located inside the storage groove (33).

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