Ventilation cabinet convenient for experiment operation

Abstract

The utility model discloses a fume hood convenient for experiment operation, which comprises a fume hood, an exhaust fan is fixedly mounted in the fume hood, a pull-down storage cabinet is arranged at the lower end of the fume hood, the pull-down storage cabinet is in sliding connection with the fume hood, a thread mechanism is arranged on the outer surface of an acrylic transparent plate, and the outer surface of the acrylic transparent plate is in sliding connection with the pull-down storage cabinet. And through a thread mechanism, the medicament in the ventilation cabinet can be conveniently operated during experimental operation. According to the fume hood convenient for experimental operation, during an experiment, a medicament needs to be put into the fume hood firstly, and then an acrylic transparent plate can be put down, so that the acrylic transparent plate moves along the direction of a sliding chute until the side surface of the acrylic transparent plate is attached to the side surface of the fume hood; the sealing hanging strip is attached to the acrylic transparent plate to prevent poison gas from overflowing, so that the poison gas is exhausted by an exhaust fan in the ventilation cabinet through an air outlet to be treated, and the situation that the poison gas overflows and is absorbed by a human body to cause harm during an experiment is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to a fume hood which is convenient for experimental operation. Background Art

[0002] In the process of conducting experiments in the laboratory, it is inevitable to use a laboratory cabinet to operate some toxic chemical reagents. Although the experimenters can avoid contact with chemical reagents by wearing protective gloves, the toxic gases produced by the reaction of chemical reagents are difficult to remove and dissipate. These toxic gases are inhaled into the human body and will cause irreversible damage to the human body. Therefore, it is usually necessary to arrange a fume hood in the laboratory to collect, filter, purify and discharge the toxic gases in time when conducting toxic chemical experiments;

[0003] The existing patent document with the technical publication number CN217595463U provides a fume hood that is convenient for experimental operation, including a fume hood, characterized in that the fume hood is connected to a first drawer, the first drawer is inserted into a drawer slot, a plurality of drawer slots are provided, the second drawer and the third drawer are both inserted into the drawer slots, the first drawer is provided with a writing board, a motor is provided on the writing board, one end of the output shaft of the motor is connected to a telescopic rod, a page turning rod is installed at the end of the telescopic rod, the page turning rod is perpendicular to the telescopic rod, the other end of the page turning rod is connected to a rubber head, the motor is connected to a first pulley, the first pulley is connected to a transmission belt, the other end of the transmission belt is connected to a second pulley, and the second pulley is connected to a pressure rod;

[0004] With respect to the above-mentioned related technology, the inventors found that the technology has at least the following problems: the fume hood in the above-mentioned patent document does not have any shielding device during operation, which can easily cause people to inhale toxic gases when getting too close during the test. Utility Model Content

[0005] The purpose of the utility model is to provide a fume hood that is convenient for experimental operation, so as to solve the problem in the above background technology that the fume hood cannot completely isolate toxic gases when in use, and the toxic gases that escape during operation can be easily inhaled into the lungs of the operator, causing irreversible damage.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fume hood that is convenient for experimental operations, comprising a fume hood, an exhaust fan is fixedly installed inside the fume hood, and an air outlet is provided on the outer surface of one end of the fume hood, a one-way vent is installed through the side surface of the fume hood, an operating space is provided inside the fume hood, and a one-way vent is provided on one side of the operating space of the fume hood, a pull-down storage cabinet is provided at the lower end of the fume hood, and the pull-down storage cabinet is slidably connected to the fume hood, and an acrylic transparent plate is provided on one side of the fume hood, and a sliding device is provided on the side of the fume hood close to the pull-down storage cabinet, and the toxic gas generated during the experiment is isolated by the sliding device to prevent the toxic gas from escaping from the fume hood.

[0007] Preferably, the sliding device includes: a slide groove, which is fixedly installed on the side surface of the fume hood, and a sealing hanging strip is installed inside the fume hood in a snap-fitting manner, an acrylic transparent plate is slidably installed inside the slide groove, and a fixing frame is fixedly installed on one end of the acrylic transparent plate close to the air outlet, and an elastic pin is slidably installed on the outer surface of the fixing frame, a handle is provided on the outer surface of the acrylic transparent plate, and the side surface of the acrylic transparent plate is in contact with the side surface of the sealing hanging strip.

[0008] By adopting the above technical solution, the acrylic transparent plate can be pulled to slide inside the slide groove through the handle on the outside of the acrylic transparent plate. When the acrylic transparent plate is lifted, the fixed frame will be pushed to move, so that the elastic pin on the outer surface of the fixed frame is disengaged from the side surface of the fume hood, so that the acrylic transparent plate is fixed. At the same time, the gap between the sealing hanging strip and the fume hood can be filled by the sealing hanging strip, so that toxic gases will not escape, and at the same time, operations can be performed through the through holes of the acrylic transparent plate.

[0009] Preferably, a slide rail is fixedly installed on one end of the fume hood away from the one-way vent, and a side cabinet is fixedly installed on the outer surface of the slide rail, and a roller is fixedly installed on the outer surface of the side cabinet, a groove is opened on the side surface of the fume hood close to the side cabinet, and a roller is arranged in the groove of the fume hood, and a small turntable is rotatably installed inside the side cabinet.

[0010] By adopting the above technical solution, the pressure when the side cabinet is pulled out can be shared by the rollers, thereby extending the service life of the slide rails. At the same time, materials can be stored in the side cabinet and the small turntable can be turned out to write and record on the small turntable.

[0011] Preferably, a threaded mechanism is provided on the outer surface of the acrylic transparent plate, which facilitates operation of the medicine in the ventilation fume hood by passing a hand through the acrylic transparent plate during experimental operation.

[0012] By adopting the above technical solution, the inner fixing sleeve can be fixed on the acrylic transparent plate through the compression sleeve, and the gap between the inner fixing sleeve and the acrylic transparent plate can be sealed by the sealing gasket.

[0013] Preferably, the threaded mechanism comprises: an acrylic transparent plate, a through hole is opened on the outer surface of the acrylic transparent plate, and an inner fixing sleeve is snap-fitted and installed in the through hole of the acrylic transparent plate, and a sealing gasket is arranged between the inner fixing sleeve and the acrylic transparent plate, the side surface of the inner fixing sleeve does not protrude from the side surface of the acrylic transparent plate, a compression sleeve is threadedly installed on the outer surface of the inner fixing sleeve, and the side surface of the compression sleeve is in contact with the side surface of the acrylic transparent plate, a rubber glove is snap-fitted and installed on the inner surface of the compression sleeve, and the rubber glove passes through the inner fixing sleeve and the compression sleeve, and the rubber glove passes through the acrylic transparent plate.

[0014] By adopting the above technical solution, the sealing gasket can be put on the inner fixing sleeve, and then the inner fixing sleeve can be inserted into the through hole of the acrylic transparent plate, and then the compression sleeve can be screwed in. By tightening the compression sleeve, the gap between the inner fixing sleeve and the acrylic transparent plate can be filled with the sealing gasket.

[0015] Preferably, the outer surface of the compression sleeve is provided with an elastic buckle mechanism, and the rubber gloves can be easily fixed and sealed by the elastic buckle and the mechanism.

[0016] By adopting the above technical solution, the acrylic transparent plate and the rubber gloves can be completely sealed, so that the poisonous gas during the experimental operation cannot escape.

[0017] Preferably, the elastic buckling mechanism includes: a buckle plate, which is buckled on the side surface of one end of the compression sleeve, and a rubber glove is sandwiched between the compression sleeve and the buckle plate, and a hook is inserted into the end of the buckle plate close to the inner fixed sleeve, the buckle plate and the hook are fixed by screws, and the side surface of the hook is inclined, and the side surface of the hook is in contact with the outer surface of the compression sleeve, the compression sleeve and the buckle plate are concentrically designed, and the buckle plate and the inner fixed sleeve are concentrically designed.

[0018] By adopting the above technical solution, when the rubber gloves need to be replaced, the screws on the side surface of the buckle plate can be loosened, and then the hook can be taken out to disengage the hook from the buckle plate. Then, the buckle plate can be removed and the rubber gloves can be removed from the compression sleeve, so that the rubber gloves can be easily replaced and installed.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the fume hood which is convenient for experimental operation:

[0020] 1. When conducting the experiment, you need to put the reagent into the fume hood first, and then put down the acrylic transparent plate, and move the acrylic transparent plate along the direction of the slide until the side surface of the acrylic transparent plate fits with the side surface of the fume hood, and prevent the poisonous gas from overflowing through the sealing hanging strip and the acrylic transparent plate, so that the poisonous gas is discharged through the air outlet by the exhaust fan in the fume hood for treatment, to prevent the poisonous gas from overflowing or being absorbed by the human body too close to cause harm during the experiment;

[0021] 2. When the experiment is completed, the rubber gloves can be pulled out, and then the acrylic transparent plate can be lifted up through the handle of the acrylic transparent plate, so that the acrylic transparent plate moves upward along the direction of the slide slot, and the fixed frame is pushed upward at the same time. When the elastic bayonet is disengaged from the side surface of the fume hood, the elastic bayonet will pop out, and the acrylic transparent plate can be released at this time. The acrylic transparent plate will be hung on the side surface of the fume hood and remain open, which is convenient for the operator to take out the chemical reagents in the fume hood;

[0022] 3. Place the sealing gasket into the inner fixing sleeve, and then insert the inner fixing sleeve into the groove of the acrylic transparent plate, and then tighten the compression sleeve to make the inner fixing sleeve squeeze the sealing gasket, so as to seal the gap between the inner fixing sleeve and the acrylic transparent plate, and at the same time allow the hand to pass through the acrylic transparent plate for operation;

[0023] 4. The side cabinet can be pulled out from the fume hood, and the documents can be placed inside the side cabinet. The rollers can share the weight of the side cabinet, so that after the side cabinet is pulled out, the slide rail will not bear a higher weight, and at the same time, the service life and life of the slide rail can be increased. When the experiment needs to be recorded, the small turntable can be turned out from the side cabinet and the records can be copied on the top of the small turntable;

[0024] 5. Insert one end of the rubber glove into the inner side of the compression sleeve, then insert the glove into the compression sleeve, then insert the buckle plate into the compression sleeve, so that the hook is engaged with the buckle plate, so that the buckle plate and the compression sleeve press the rubber glove tightly, so that the acrylic transparent plate can be sealed. When the rubber gloves need to be replaced, the screws on the side surface of the buckle plate can be removed, and then the buckle plate can be removed, and the rubber gloves can be taken out, and then new rubber gloves can be put in, and the hook is reinstalled on the buckle plate, and the buckle plate is re-inserted into the compression sleeve, so that the rubber gloves can be easily installed and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the front view structure of the fume hood and the acrylic transparent plate of the utility model;

[0026] Figure 2 This is a schematic diagram of the side cross-sectional structure of the acrylic transparent plate and the buckle plate of the utility model;

[0027] Figure 3This is a schematic diagram of the structure of the fume hood and the side cabinet from a top view of the utility model;

[0028] Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of the fixed frame and the acrylic transparent plate of the utility model;

[0029] Figure 5 This is a schematic diagram of the exploded three-dimensional structure of the buckle plate and the hook of the utility model;

[0030] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the internal fixing sleeve and the compression sleeve of the utility model.

[0031] In the figure: 1. Fume hood; 2. Air outlet; 3. Slide; 4. One-way vent; 5. Side cabinet; 6. Roller; 7. Slide rail; 8. Pull-down storage cabinet; 9. Fixed frame; 10. Acrylic transparent plate; 11. Sealing hanging strip; 12. Elastic bayonet; 13. Rubber gloves; 14. Internal fixing sleeve; 15. Sealing gasket; 16. Compression sleeve; 17. Buckle plate; 18. Hook; 19. Small swivel table. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-6 The utility model provides a technical solution: a fume hood which is convenient for experimental operation.

[0034] Example 1

[0035] The present embodiment discloses: a fume hood 1, an exhaust fan is fixedly installed inside the fume hood 1, and an air outlet 2 is provided on the outer surface of one end of the fume hood 1, a one-way vent 4 is installed through the side surface of the fume hood 1, an operating space is provided inside the fume hood 1, and a one-way vent 4 is provided on one side of the operating space of the fume hood 1, a pull-down storage cabinet 8 is provided at the lower end of the fume hood 1, and the pull-down storage cabinet 8 is slidably connected to the fume hood 1, and an acrylic transparent plate 10 is provided on one side of the fume hood 1, and a sliding device is provided on the side of the fume hood 1 close to the pull-down storage cabinet 8, and the sliding device is used to isolate the poisonous gas generated during the experiment to prevent the poisonous gas from escaping from the fume hood 1.

[0036] When using the device, the reagent can be taken out from the inside of the pull-down storage cabinet 8, and then the reagent used for the test is placed in the fume hood 1, and then the acrylic transparent plate 10 is pulled down and closed, so that the side surface of the acrylic transparent plate 10 fits with the sealing hanging strip 11, and the gap between the fume hood 1 and the acrylic transparent plate 10 is isolated and sealed, and the external wind is sucked into the fume hood 1 through the one-way vent 4 through the exhaust fan in the fume hood 1, and then the hand can be passed through the acrylic transparent plate 10 to operate, so that the fume hood 1 is sealed, and the toxic gas generated during the experiment is sucked away and discharged to the outside through the air outlet 2 for disposal.

[0037] Example 2

[0038] This embodiment is disclosed on the basis of embodiment 1: the sliding device includes: a slide groove 3, the slide groove 3 is fixedly installed on the side surface of the fume hood 1, and the fume hood 1 has a sealing hanging strip 11 installed inside the slide groove 3, an acrylic transparent plate 10 is slidably installed inside the slide groove 3, and a fixing frame 9 is fixedly installed on one end of the acrylic transparent plate 10 close to the air outlet 2, and an elastic latch 12 is slidably installed on the outer surface of the fixing frame 9, a handle is provided on the outer surface of the acrylic transparent plate 10, and the side surface of the acrylic transparent plate 10 is in contact with the side surface of the sealing hanging strip 11.

[0039] By adding the above structure, the rubber gloves 13 can be pulled out after the experiment is completed, and then the acrylic transparent plate 10 can be lifted up through the handle of the acrylic transparent plate 10, so that the acrylic transparent plate 10 moves along the direction of the slide groove 3, so that the fixing frame 9 is pushed upward together, and when the elastic latch 12 is disengaged from the side surface of the fume hood 1, the elastic latch 12 will automatically pop out, and then the acrylic transparent plate 10 can be put down, and the acrylic transparent plate 10 will be hung on the side surface of the fume hood 1, and the reagents that have completed the reaction can be conveniently taken out without being blocked by the acrylic transparent plate 10.

[0040] Example 3

[0041] This embodiment is disclosed on the basis of Embodiment 1 and Embodiment 2: a slide rail 7 is fixedly mounted on one end of the fume hood 1 away from the one-way vent 4, a side cabinet 5 is fixedly mounted on the outer surface of the slide rail 7, and a roller 6 is fixedly mounted on the outer surface of the side cabinet 5, a groove is provided on the side surface of the fume hood 1 close to the side cabinet 5, and a roller 6 is arranged in the groove of the fume hood 1, and a small turntable 19 is rotatably mounted inside the side cabinet 5.

[0042] By adding the above structure, material reports and experimental records can be placed inside the side cabinet 5 to store the material reports. The side cabinet 5 can also be pulled out of the fume hood 1 through the slide rail 7. The weight borne by the side cabinet 5 when it is pulled out is shared by the roller 6, so that the service life of the slide rail 7 can be increased. At the same time, when it is necessary to write records, the small turntable 19 can be turned out of the side cabinet 5 for easy writing.

[0043] Example 4

[0044] The present embodiment discloses, on the basis of the first, second and third embodiments: a threaded mechanism is provided on the outer surface of the acrylic transparent plate 10, and the threaded mechanism facilitates the operation of the medicine in the ventilation fume hood 1 by passing the hand through the acrylic transparent plate 10 during the experimental operation, and the threaded mechanism comprises: an acrylic transparent plate 10, a through hole is provided on the outer surface of the acrylic transparent plate 10, and an inner fixing sleeve 14 is clamped and installed in the through hole of the acrylic transparent plate 10, and a sealing gasket 15 is provided between the inner fixing sleeve 14 and the acrylic transparent plate 10, the side surface of the inner fixing sleeve 14 does not protrude from the side surface of the acrylic transparent plate 10, a compression sleeve 16 is threadedly installed on the outer surface of the inner fixing sleeve 14, and the side surface of the compression sleeve 16 is in contact with the side surface of the acrylic transparent plate 10, a rubber glove 13 is clamped and installed on the inner surface of the compression sleeve 16, and the rubber glove 13 passes through the inner fixing sleeve 14 and the compression sleeve 16, and the rubber glove 13 passes through the acrylic transparent plate 10.

[0045] By adding the above structure, the sealing gasket 15 can be placed in the inner fixing sleeve 14, and then the inner fixing sleeve 14 can be inserted into the groove of the acrylic transparent plate 10, and then the compression sleeve 16 is tightened to make the compression sleeve 16 close to the acrylic transparent plate 10. By tightening the compression sleeve 16, the gap between the inner fixing sleeve 14 and the acrylic transparent plate 10 is clamped and sealed by the sealing gasket 15.

[0046] Example 5

[0047] This embodiment discloses on the basis of Embodiment 1, Embodiment 2, Embodiment 3 and Embodiment 4: the outer surface of the compression sleeve 16 is provided with an elastic buckle mechanism, and the rubber glove 13 is easily fixed and sealed by the elastic buckle and the mechanism, and the elastic buckle mechanism includes: a buckle plate 17, the buckle plate 17 is buckled on the side surface of one end of the compression sleeve 16, and the rubber glove 13 is clamped between the compression sleeve 16 and the buckle plate 17, and a hook 18 is inserted at one end of the buckle plate 17 close to the inner fixed sleeve 14, the buckle plate 17 and the hook 18 are fixed by screws, and the side surface of the hook 18 is inclined, and the side surface of the hook 18 is in contact with the outer surface of the compression sleeve 16, the compression sleeve 16 and the buckle plate 17 are concentrically designed, and the buckle plate 17 and the inner fixed sleeve 14 are concentrically designed.

[0048] By adding the above structure, one end of the rubber glove 13 can be inserted into the interior of the compression sleeve 16, and then the compression plate 17 can be inserted into the compression sleeve 16, so that the hook 18 is pushed open by the side surface of the compression sleeve 16, so that the compression sleeve 16 and the compression plate 17 clamp the rubber glove 13, fix the rubber glove 13 and seal the inner fixed sleeve 14. When the rubber glove 13 needs to be replaced, the screws on the side surface of the compression plate 17 can be removed to disengage the hook 18 from the compression plate 17, and the compression plate 17 can be removed from the compression sleeve 16, and then the rubber glove 13 can be removed, and the new rubber glove 13 can be removed for replacement, so that the rubber glove 13 can be conveniently removed and installed.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fume hood for convenient experimental operation, comprising a fume hood (1), an exhaust fan is fixedly installed inside the fume hood (1), and an air outlet (2) is provided on the outer surface of one end of the fume hood (1), a one-way vent (4) is installed through the side surface of the fume hood (1), an operating space is provided inside the fume hood (1), and a one-way vent (4) is provided on one side of the operating space of the fume hood (1), a pull-down storage cabinet (8) is provided at the lower end of the fume hood (1), and the pull-down storage cabinet (8) is slidably connected to the fume hood (1), and an acrylic transparent plate (10) is provided on one side of the fume hood (1), characterized in that: A sliding device is provided on one side of the fume hood (1) close to the pull-down storage cabinet (8), and the sliding device is used to isolate the poisonous gas generated during the experiment, thereby preventing the poisonous gas from escaping from the fume hood (1).

2. A fume hood for convenient experimental operation according to claim 1, characterized in that: The sliding device comprises: a slide groove (3), the slide groove (3) is fixedly mounted on the side surface of the fume hood (1), and a sealing hanging strip (11) is mounted in the interior of the fume hood (1), an acrylic transparent plate (10) is slidably mounted in the interior of the slide groove (3), and a fixing frame (9) is fixedly mounted on one end of the acrylic transparent plate (10) close to the air outlet (2), and an elastic locking pin (12) is slidably mounted on the outer surface of the fixing frame (9), a handle is arranged on the outer surface of the acrylic transparent plate (10), and the side surface of the acrylic transparent plate (10) is in contact with the side surface of the sealing hanging strip (11).

3. A fume hood for convenient experimental operation according to claim 1, characterized in that: A slide rail (7) is fixedly mounted on one end of the fume hood (1) away from the one-way vent (4), and a side cabinet (5) is fixedly mounted on the outer surface of the slide rail (7), and a roller (6) is fixedly mounted on the outer surface of the side cabinet (5); a groove is formed on the side surface of the fume hood (1) close to the side cabinet (5), and a roller (6) is arranged in the groove of the fume hood (1); and a small rotating table (19) is rotatably mounted inside the side cabinet (5).

4. A fume hood for convenient experimental operation according to claim 1, characterized in that: The outer surface of the acrylic transparent plate (10) is provided with a thread mechanism, and the thread mechanism facilitates the operation of the medicine in the ventilation cabinet (1) by passing a hand through the acrylic transparent plate (10) during experimental operation.

5. A fume hood for convenient experimental operation according to claim 4, characterized in that: The thread mechanism comprises: an acrylic transparent plate (10), the outer surface of the acrylic transparent plate (10) is provided with a through hole, an inner fixing sleeve (14) is snap-fitted and installed in the through hole of the acrylic transparent plate (10), a sealing gasket (15) is arranged between the inner fixing sleeve (14) and the acrylic transparent plate (10), the side surface of the inner fixing sleeve (14) does not protrude from the side surface of the acrylic transparent plate (10), a compression sleeve (16) is threadedly installed on the outer surface of the inner fixing sleeve (14), and the side surface of the compression sleeve (16) is in contact with the side surface of the acrylic transparent plate (10), a rubber glove (13) is snap-fitted and installed on the inner surface of the compression sleeve (16), and the rubber glove (13) passes through the inner fixing sleeve (14) and the compression sleeve (16), and the rubber glove (13) passes through the acrylic transparent plate (10).

6. A fume hood for convenient experimental operation according to claim 5, characterized in that: The outer surface of the compression sleeve (16) is provided with an elastic buckle mechanism, and the rubber glove (13) is easily fixed and sealed by the elastic buckle and the mechanism.

7. A fume hood for convenient experimental operation according to claim 6, characterized in that: The elastic buckling mechanism comprises: a buckle plate (17), the buckle plate (17) is buckled on the side surface of one end of the compression sleeve (16), and a rubber glove (13) is sandwiched between the compression sleeve (16) and the buckle plate (17), and a hook (18) is inserted at one end of the buckle plate (17) close to the inner fixed sleeve (14), the buckle plate (17) and the hook (18) are fixed by screws, and the side surface of the hook (18) is inclined, and the side surface of the hook (18) is in contact with the outer surface of the compression sleeve (16), the compression sleeve (16) and the buckle plate (17) are concentrically designed, and the buckle plate (17) and the inner fixed sleeve (14) are concentrically designed.

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