Ventilation cabinet for drug research and development laboratory

Abstract

The utility model discloses a fume hood for a drug research and development laboratory, and relates to the technical field of air flow control, the fume hood comprises a shell, the outer surface of the shell is fixedly connected with an experiment cabinet, the shell is provided with an adjusting mechanism, the shell is provided with a filtering mechanism, the adjusting mechanism comprises a ventilator, and the ventilator is connected with the experiment cabinet. A limiting plate is arranged, a threaded rod is rotated, then the rotation of the threaded rod enables a moving strip to move upwards, at the moment, the moving strip drives a connecting block to move upwards, then the connecting block lifts one end of a moving rod upwards, and the moving rod is driven to move upwards. At the moment, the moving rod gradually pushes the limiting plate, and through the limiting plate capable of rotating on the connecting shaft, the effects that the size of the ventilation groove can be adjusted, so that the intensity of the airflow is controlled, the experiment operation can be helped to be more accurate, the interference of the airflow on the sample is reduced, the effective discharge of the gas is ensured, and the harm of gas accumulation is avoided are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of airflow control technology, and in particular relates to a fume hood for use in pharmaceutical research and development laboratories. Background Technology

[0002] Fume hoods used in pharmaceutical research laboratories are specially designed devices to provide a safe and clean working environment to protect laboratory personnel from harmful gases, vapors, dust, and other substances. Fume hoods effectively remove harmful substances from the experimental area through an exhaust system, while preventing them from spreading to other parts of the laboratory.

[0003] According to the published patent CN216369444U, a fume hood for a pharmaceutical research laboratory is described. The fume hood body has an exhaust fan connected to the top center. Two first transmission frames are symmetrically installed on both sides of the fume hood body. Each of the two first transmission frames has a first sliding seat on its exterior. A second transmission frame is fixedly installed on the exterior of each of the two first sliding seats, and the first and second transmission frames have the same structure. A second sliding seat is provided on the top of each of the two second transmission frames, and the first and second sliding seats have the same structure. This fume hood for a pharmaceutical research laboratory allows for more convenient maintenance, effectively improves the work efficiency of users, and has a better future application prospect. However, it still has the following shortcomings:

[0004] Different drugs release different types and concentrations of gases or vapors during experiments. Therefore, when using a fume hood for ventilation, the size of the air outlet needs to be flexibly adjusted according to the type of drug to ensure effective exhaust of gases and avoid accumulation hazards. Therefore, we propose a fume hood for drug research and development laboratories. Utility Model Content

[0005] The purpose of this invention is to provide a fume hood for a pharmaceutical research and development laboratory. By rotating the threaded rod, the moving bar moves upward, and the movement of the moving bar pushes the limiting plate with the moving rod, thus solving the problem of flexibly adjusting the amount of airflow.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a fume hood for a pharmaceutical research and development laboratory, including a shell, an experimental cabinet fixedly connected to the outer surface of the shell, an adjustment mechanism on the shell, and a filter mechanism on the shell;

[0008] The adjusting mechanism includes a fan, a fixed frame is fixedly connected to the inner wall of the housing, a limiting cylinder is fixedly connected to the inner wall of the housing, a threaded rod is threadedly connected to the inner wall of the limiting cylinder, a moving strip is threadedly connected to the outer surface of the threaded rod, a connecting block is fixedly connected to the outer surface of the moving strip, a moving rod is rotatably connected to the inner wall of the connecting block, a ventilation groove is opened inside the housing, a connecting shaft is fixedly connected to the inner wall of the ventilation groove, and a limiting plate is rotatably connected to the outer surface of the connecting shaft.

[0009] Furthermore, the bottom of the ventilator is slidably connected to the inner wall of the housing, the inner wall of the fixed frame is slidably connected to the outer surface of the ventilator, and the outer surface of the threaded rod is rotatably connected to the inner wall of the housing.

[0010] Furthermore, a total of several connecting blocks and a total of several ventilation slots are provided, and the inner wall of the limiting plate is rotatably connected to the outer surface of the moving rod.

[0011] Furthermore, the filtering mechanism includes a mounting groove formed inside the housing, a mounting frame fixedly connected to the inner wall of the housing, and a connecting strip slidably connected to the top of the mounting frame.

[0012] Furthermore, the outer surface of the connecting strip is slidably connected to the inner wall of the mounting groove, a handle is fixedly connected to the top of the connecting strip, and a filter plate is fixedly connected to the bottom of the connecting strip.

[0013] Furthermore, a slide bar is fixedly connected to the outer surface of the filter plate, the outer surface of the slide bar is slidably connected to the inner wall of the mounting frame, a slot is provided inside the slide bar, and an insert plate is inserted into the inner wall of the slot.

[0014] Furthermore, a limiting body is fixedly connected to the side of the insert plate away from the filter plate, and a fixing strip is slidably connected to the outer surface of the limiting body. The outer surface of the fixing strip is fixedly connected to the outer surface of the mounting frame.

[0015] Furthermore, a spring is fixedly connected to the side of the insert plate near the fixing strip. There are two springs in total. The end of the spring away from the insert plate is fixedly connected to the inner wall of the fixing strip. The inner side of the spring is sleeved with the outer surface of the limiting body.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model incorporates a limiting plate to rotate the threaded rod. The rotation of the threaded rod causes the moving bar to move upward, which in turn moves the connecting block upward. The connecting block then lifts one end of the moving rod upward, gradually pushing the limiting plate. By using a limiting plate that can rotate on the connecting shaft, the size of the ventilation slot can be adjusted, thereby controlling the airflow intensity. This allows for more precise experimental operations, reduces airflow interference with the sample, ensures effective gas discharge, and prevents the harmful effects of gas accumulation.

[0018] 2. This utility model incorporates a limiting body. When the limiting body is pulled towards the direction of the ventilation fan, it causes the insert plate to move, disengaging it from the slot. Simultaneously, the insert plate compresses the spring. Lifting the handle upwards causes the connecting strip to move upwards. By using the limiting body that moves the insert plate, the filter plate can be easily removed from the housing for cleaning. This effectively removes harmful substances, dust, and chemical residues accumulated in the filter plate, ensuring that the air filtration function of the fume hood remains at its optimal state.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the ventilation fan of this utility model;

[0023] Figure 3 This is a schematic diagram of the limiting cylinder structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the motion strip structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the movable rod structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the mounting frame structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the filter plate structure of this utility model;

[0028] Figure 8 This is a schematic diagram of the limiting body structure of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 101. Shell; 102. Experimental cabinet; 2. Adjustment mechanism; 201. Fan; 202. Fixing frame; 203. Limiting cylinder; 204. Threaded rod; 205. Moving bar; 206. Connecting block; 207. Moving rod; 208. Ventilation slot; 209. Connecting shaft; 210. Limiting plate; 3. Filtering mechanism; 301. Mounting slot; 302. Mounting frame; 303. Handle; 304. Connecting bar; 305. Filter plate; 306. Slide bar; 307. Slot; 308. Insert plate; 309. Limiting body; 310. Fixing bar; 311. Spring. Detailed Implementation

[0031] The technical solutions of the present 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 the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-8 As shown, this utility model is a fume hood for a pharmaceutical research and development laboratory, including a shell 101, an experimental cabinet 102 fixedly connected to the outer surface of the shell 101, an adjustment mechanism 2 and a filter mechanism 3 on the shell 101. The shell 101 can be opened by rotating the experimental cabinet 102, and the filter mechanism 3 can be cleaned quickly and easily. The amount of airflow can also be adjusted by adjusting the adjustment mechanism 2.

[0033] The adjustment mechanism 2 includes a fan 201. A fixed frame 202 is fixedly connected to the inner wall of the housing 101. A limiting cylinder 203 is fixedly connected to the inner wall of the housing 101. A threaded rod 204 is threadedly connected to the inner wall of the limiting cylinder 203. The limiting cylinder 203 fixes the position of the threaded rod 204 to prevent it from disengaging from the device due to rotation, ensuring that the device can adjust normally. A moving strip 205 is threadedly connected to the outer surface of the threaded rod 204. A connecting block 206 is fixedly connected to the outer surface of the moving strip 205. A moving rod 207 is rotatably connected to the inner wall of the connecting block 206. A ventilation slot 208 is provided inside the housing 101. The rotation of the threaded rod 204 will cause the moving strip 205 to move upward. Then, the moving strip 205 will drive the connecting block 206 to move, so that the connecting block 206 can drive the moving rod 207 to move, thereby enabling the device to proceed to the next transmission step. The ventilation slot 208... A connecting shaft 209 is fixedly connected to the inner wall of the ventilator 201. A limiting plate 210 is rotatably connected to the outer surface of the connecting shaft 209. The bottom of the ventilator 201 is slidably connected to the inner wall of the housing 101. The inner wall of the fixed frame 202 is slidably connected to the outer surface of the ventilator 201. When the moving rod 207 moves, it pushes the limiting plate 210. At this time, the limiting plate 210 will rotate on the connecting shaft 209, so that the size of the ventilation slot 208 can be adjusted. The outer surface of the threaded rod 204 is rotatably connected to the inner wall of the housing 101. Several connecting blocks 206 and several ventilation slots 208 are provided. The inner wall of the limiting plate 210 is rotatably connected to the outer surface of the moving rod 207. The moving rod 207 can rotate inside the limiting plate 210, so that when the limiting plate 210 rotates on the connecting shaft 209, the moving rod 207 can still push the limiting plate 210, ensuring that the device can be adjusted normally.

[0034] The filter mechanism 3 includes a mounting groove 301 inside the housing 101. A mounting frame 302 is fixedly connected to the inner wall of the housing 101. A connecting strip 304 is slidably connected to the top of the mounting frame 302. The outer surface of the connecting strip 304 is slidably connected to the inner wall of the mounting groove 301, allowing the connecting strip 304 to slide within the mounting groove 301. This enables the parts inside the filter mechanism 3 to be disassembled for easy cleaning. A handle 303 is fixedly connected to the top of the connecting strip 304, and a filter plate 305 is fixedly connected to the bottom of the connecting strip 304. A sliding strip 306 is fixedly connected to the outer surface of the filter plate 305. Lifting the connecting bar 304 upwards by using handle 303 causes the connecting bar 304 to move the slide bar 306 upwards, which in turn moves the filter plate 305, thus removing the filter plate 305 from the housing 101. The outer surface of the slide bar 306 is slidably connected to the inner wall of the mounting frame 302. A slot 307 is provided inside the slide bar 306, and an insert plate 308 is inserted into the inner wall of the slot 307. The insert plate 308 can be tightly inserted into the slot 307 to fix the slide bar 306, thereby fixing the filter plate 305 and preventing the filter plate 305 from shifting during the operation of the device.

[0035] A limiting body 309 is fixedly connected to the side of the insert plate 308 away from the filter plate 305. A fixing strip 310 is slidably connected to the outer surface of the limiting body 309. The outer surface of the fixing strip 310 is fixedly connected to the outer surface of the mounting frame 302. The fixing strip 310 restricts the position of the limiting body 309, so that the limiting body 309 can only move on a predetermined track, ensuring that the limiting body 309 can drive the insert plate 308 to lock the slide bar 306 normally. A spring 311 is fixedly connected to the side of the insert plate 308 near the fixing strip 310. There are two springs 311. The end of the spring 311 away from the insert plate 308 is fixedly connected to the inner wall of the fixing strip 310. The inner side of the spring 311 is sleeved with the outer surface of the limiting body 309. The limiting body 309 restricts the movement of the spring 311 to prevent the spring 311 from tilting or shifting during the movement, ensuring that the filter plate 305 can be disassembled and cleaned normally.

[0036] One specific application of this embodiment is:

[0037] When staff need to use the equipment, they can turn on the ventilator 201 and then rotate the threaded rod 204 as needed. This rotation causes the moving bar 205 to move upwards, which in turn moves the connecting block 206 upwards. The connecting block 206 then lifts one end of the moving rod 207 upwards, gradually pushing the limiting plate 210, causing it to rotate on the connecting shaft 209. This adjusts the opening size of the ventilation slot 208, thereby adjusting the amount of airflow. This allows for adjustment of the size of the ventilation slot 208, controlling the airflow intensity. This helps to make experimental operations more precise, reduces airflow interference with samples, ensures effective gas discharge, and avoids the harmful effects of gas accumulation. During ventilation, the filter plate 305 filters the air. The filter plate 305 needs to be cleaned... During cleaning, the housing 101 can be removed from the experimental cabinet 102, and then the limiting body 309 can be pulled towards the fan 201. At this time, the limiting body 309 will drive the insert plate 308 to move, causing the insert plate 308 to disengage from the slot 307. At the same time, the insert plate 308 will also compress the spring 311. Then, the handle 303 can be lifted upwards, which will drive the connecting strip 304 to move upwards. Then, the connecting strip 304 will drive the slide bar 306 to slide within the mounting frame 302, thereby causing the slide bar 306 to move the filter plate 305, allowing the filter plate 305 to be removed from the housing 101 for cleaning. This makes it easy to remove the filter plate 305 from the housing 101 for cleaning, effectively removing harmful substances, dust, and chemical residues accumulated in the filter plate 305, ensuring that the air filtration function of the fume hood is always in optimal condition.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fume hood for a pharmaceutical development laboratory comprising a housing (101), characterized in that: An experimental cabinet (102) is fixedly connected to the outer surface of the housing (101), an adjustment mechanism (2) is provided on the housing (101), and a filter mechanism (3) is provided on the housing (101). The adjustment mechanism (2) includes a fan (201), a fixed frame (202) is fixedly connected to the inner wall of the housing (101), a limiting cylinder (203) is fixedly connected to the inner wall of the housing (101), a threaded rod (204) is threadedly connected to the inner wall of the limiting cylinder (203), a moving strip (205) is threadedly connected to the outer surface of the threaded rod (204), a connecting block (206) is fixedly connected to the outer surface of the moving strip (205), a moving rod (207) is rotatably connected to the inner wall of the connecting block (206), a ventilation groove (208) is provided inside the housing (101), a connecting shaft (209) is fixedly connected to the inner wall of the ventilation groove (208), and a limiting plate (210) is rotatably connected to the outer surface of the connecting shaft (209).

2. A fume hood for use in a pharmaceutical development laboratory according to claim 1, wherein, The bottom of the ventilator (201) is slidably connected to the inner wall of the housing (101), the inner wall of the fixed frame (202) is slidably connected to the outer surface of the ventilator (201), and the outer surface of the threaded rod (204) is rotatably connected to the inner wall of the housing (101).

3. The fume hood for a pharmaceutical development laboratory according to claim 1, wherein A total of several connecting blocks (206) are provided, a total of several ventilation slots (208) are provided, and the inner wall of the limiting plate (210) is rotatably connected to the outer surface of the moving rod (207).

4. A fume hood for a pharmaceutical research and development laboratory according to claim 1, characterized in that, The filter mechanism (3) includes an installation groove (301) opened inside the housing (101), an installation frame (302) is fixedly connected to the inner wall of the housing (101), and a connecting strip (304) is slidably connected to the top of the installation frame (302).

5. A fume hood for use in a pharmaceutical development laboratory according to claim 4, wherein, The outer surface of the connecting strip (304) is slidably connected to the inner wall of the mounting groove (301), a handle (303) is fixedly connected to the top of the connecting strip (304), and a filter plate (305) is fixedly connected to the bottom of the connecting strip (304).

6. A fume hood for use in a pharmaceutical development laboratory according to claim 5, wherein, A slide bar (306) is fixedly connected to the outer surface of the filter plate (305). The outer surface of the slide bar (306) is slidably connected to the inner wall of the mounting frame (302). A slot (307) is provided inside the slide bar (306). An insert plate (308) is inserted into the inner wall of the slot (307).

7. A fume hood for a pharmaceutical research and development laboratory according to claim 6, characterized in that, The insert plate (308) is fixedly connected to a limiting body (309) on the side away from the filter plate (305). A fixing strip (310) is slidably connected to the outer surface of the limiting body (309). The outer surface of the fixing strip (310) is fixedly connected to the outer surface of the mounting frame (302).

8. A fume hood for use in a pharmaceutical development laboratory according to claim 6, wherein, A spring (311) is fixedly connected to the side of the insert plate (308) near the fixing strip (310). There are two springs (311). The end of the spring (311) away from the insert plate (308) is fixedly connected to the inner wall of the fixing strip (310). The inner side of the spring (311) is sleeved with the outer surface of the limiting body (309).

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