Novel ventilation cabinet for laboratory

Abstract

The utility model discloses a novel ventilation cabinet for a laboratory, which belongs to the technical field of ventilation cabinets for laboratories, and is characterized by comprising a filtering ventilation mechanism, a release purification mechanism, a communication assembly, an experiment box, a storage box, an air exhaust box, a first box door, a second box door and a third box door, the ventilation assembly can connect and fix the filtering assembly, meanwhile, the ventilation assembly can ventilate the interior of the storage box, and the filtering assembly can filter dust and impurities in the outside air, so that the outside dust can be prevented from entering the storage box, and meanwhile, the situation that chemical substances in the storage box are diffused out of the air and the impurities in the air are diffused out can be prevented; the releasing and purifying mechanism can be connected with the purifying assembly, meanwhile, gas emitted by the chemical lock in the storage box can be conveyed into the purifying assembly, and the communicating assembly can enable poisonous gas in the experiment box to enter the releasing assembly through the communicating assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods for laboratories, in particular to a new fume hood for laboratories. Background Art

[0002] Fume hoods are an indispensable component of laboratory ventilation design. In order to prevent laboratory workers from inhaling or swallowing some toxic, pathogenic or unknown toxic chemicals and organisms, the laboratory should have good ventilation. To prevent the absorption of some vapors, gases and particles, pollutants must be removed using fume hoods, ventilation hoods or local ventilation methods.

[0003] At present, a Chinese utility model with announcement number: CN217595459U discloses a new type of fume hood for laboratory use, which relates to the field of fume hoods, including a cabinet body and an experimental board, as well as an air suction mechanism, a heating mechanism and a closing mechanism. A transversely arranged ventilation plate is fixedly connected to the lower part of the interior of the cabinet body, and a plurality of evenly distributed ventilation holes are provided on both sides of the upper end of the ventilation plate. The cabinet body is divided into a heating chamber and an experimental chamber by the ventilation plate. The heating mechanism is arranged in the heating chamber, and an air inlet is provided on the left side of the heating chamber. The experimental board is horizontally arranged in the experimental chamber and fixed on the ventilation plate through a plurality of fixing rods. The air suction mechanism is arranged on the upper side of the experimental chamber, and the front side of the experimental chamber is open. The closing mechanism is arranged on the front side of the experimental chamber. This utility model can shield and close the front side of the experimental chamber during a chemical reaction experiment to prevent harmful gases from overflowing, and change the internal temperature of the experimental chamber to meet different temperature requirements required during the experiment.

[0004] In order to prevent workers from inhaling or swallowing some toxic, pathogenic or unknown toxic chemicals and organisms during laboratory experiments, new laboratory fume hoods are needed to remove some toxic, pathogenic or unknown toxic chemicals and organisms. Most of the existing laboratory fume hoods directly discharge toxic gases and then collect and treat them to protect the workers in the laboratory. However, with the discharge of some toxic, pathogenic or unknown toxic chemicals and organisms, it is impossible to purify the toxic gases in the first time, so that toxic gases and other substances may leak during the discharge process, causing damage to the surrounding environment and personnel. Utility Model Content

[0005] The utility model provides a new fume hood for laboratory, aiming to solve the problem that most of the existing fume hoods for laboratory directly discharge the toxic gas and then collect and process it, so as to protect the staff in the laboratory. However, with the discharge of some toxic, pathogenic or unknown toxic chemicals and organisms, it is impossible to purify the toxic gas in the first time, so that the toxic gas and other substances may leak during the discharge process, thereby causing damage to the surrounding environment and personnel.

[0006] The utility model is implemented as follows: a new fume hood for a laboratory comprises a filtering and ventilation mechanism, a releasing and purifying mechanism, a connecting component, an experimental box, a storage box, an exhaust box, a first box door, a second box door and a third box door, wherein the filtering and ventilation mechanism is arranged on both sides of the storage box, the releasing and purifying mechanism is arranged on the top of the exhaust box, the connecting component is arranged inside the storage box, the storage box is fixedly connected to the top of the experimental box, the exhaust box is fixedly connected to the top of the storage box, the first box door is rotatably connected to the front side of the experimental box, the second box door is rotatably connected to the front side of the storage box, and the third box door is rotatably connected to the front side of the exhaust box;

[0007] The filter ventilation mechanism comprises a ventilation assembly and a filter assembly. The ventilation assembly is arranged on both sides of the storage box, and the filter assembly is arranged inside the ventilation assembly.

[0008] In order to enable the ventilation component to achieve the effect of connecting and fixing the filter component, and at the same time the ventilation component can achieve the effect of ventilating the inside of the storage box, as a preferred new type of laboratory fume hood of the utility model, the ventilation component includes a first card slot, a second card slot, a connecting frame and a vent, the first card slot and the second card slot are both opened inside the connecting frame, the connecting frame is fixedly connected to both sides of the storage box, and the vent is opened on both sides of the storage box.

[0009] In order to enable the filter component to filter dust and impurities in the outside air, thereby preventing outside dust from entering the storage box, and at the same time preventing impurities in the gas emitted by chemicals in the storage box from escaping, the filter component preferably includes a first pull plate, a filter plate, a first clip, a second pull plate, a second clip and a dust removal plate, the first pull plate is fixedly connected to the top of the filter plate, the filter plate is clipped to the inner wall of the first clip groove, the first clip strip is fixedly connected to the front and rear sides of the filter plate, the second pull plate is fixedly connected to the top of the dust removal plate, the second clip strip is fixedly connected to the front and rear sides of the dust removal plate, and the dust removal plate is clipped to the inner wall of the second clip groove.

[0010] In order to enable the release and purification mechanism to achieve the effect of purifying the discharged toxic gases, a new type of laboratory fume hood is preferably used in the utility model. The release and purification mechanism includes a release component and a purification component. The release component is arranged on the top of the vacuum box, and the purification component is arranged on the right side of the release component.

[0011] In order to enable the release component to achieve the effect of connecting to the purification component, the gas emitted by the chemical lock in the storage box can be transported to the purification component at the same time. As a preferred new type of laboratory fume hood of the utility model, the release component includes an exhaust fan, a release pipe and an extraction pipe. The exhaust fan is fixedly connected to the top of the exhaust box, the release pipe is fixedly connected to the right side of the exhaust fan, and the extraction pipe is fixedly connected to the bottom of the exhaust fan.

[0012] In order to enable the purification component to achieve the effect of purifying toxic gases and then discharging them, a new type of fume hood for laboratory use is preferably used in the utility model. The purification component includes a discharge pipe, a purification box, a purification block and a cover plate. The discharge pipe is fixedly connected to the right side of the purification box, the bottom of the purification box is fixedly connected to the top of the vacuum box, the purification block is movably connected to the inside of the purification box, and the cover plate is clamped on the front side of the purification box.

[0013] In order to enable the connecting component to connect the storage box, and thereby enable the toxic gas in the experimental box to enter the release component through the connecting component, a new type of laboratory fume hood is preferably used in the present invention. The connecting component includes a placement plate, a connecting square tube, a support plate and an embedded groove. The placement plate is clamped on the top of the support plate, the connecting square tube is fixedly connected to the inner wall of the embedded groove, the support plate is fixedly connected to the bottom of the storage box, and the embedded groove is opened on both sides of the support plate.

[0014] In order to enable the connection hole to achieve the effect of connecting and fixing the extraction tube, as a preferred new type of laboratory fume hood of the utility model, a connection hole is opened at the bottom of the exhaust box, and the inner wall of the connection hole is fixedly connected to the surface of the extraction tube.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The new fume hood for the laboratory is provided with a filtering and ventilation mechanism, which includes a ventilation component and a filtering component. Through the provision of the ventilation component, the ventilation component can achieve the effect of connecting and fixing the filtering component, and at the same time, the ventilation component can achieve the effect of ventilating the inside of the storage box. Through the provision of the filtering component, the filtering component can achieve the effect of filtering dust and impurities in the outside air, thereby preventing outside dust from entering the storage box, and at the same time preventing impurities in the gas emitted by chemicals in the storage box from escaping. Through the provision of the release and purification mechanism, the release and purification mechanism can achieve the effect of connecting the purification component, and at the same time, the gas emitted by the chemical lock in the storage box can be transported to the purification component. Through the provision of the connecting component, the connecting component can achieve the effect of connecting the storage box, thereby allowing the toxic gas in the experimental box to enter the release component through the connecting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structural diagram of the new laboratory fume hood of the utility model;

[0018] Figure 2 It is a connection diagram of the filtering and ventilation mechanism, the releasing and purifying mechanism and the connecting components in the utility model;

[0019] Figure 3 This is a schematic diagram of the connection between the ventilation component and the filter component in the utility model;

[0020] Figure 4 It is a connection diagram of the connecting components in the utility model;

[0021] Figure 5 It is a connection diagram of the release component and the purification component in the utility model.

[0022] In the figure, 1, filter ventilation mechanism; 101, ventilation assembly; 1011, first card slot; 1012, second card slot; 1013, connecting frame; 1014, vent; 102, filter assembly; 1021, first pull plate; 1022, filter plate; 1023, first card strip; 1024, second pull plate; 1025, second card strip; 1026, dust removal plate; 2, release purification mechanism; 201, release assembly; 2011, extraction Gas machine; 2012, release pipe; 2013, extraction pipe; 202, purification component; 2021, discharge pipe; 2022, purification box; 2023, purification block; 2024, cover plate; 3, connecting component; 301, placement plate; 302, connecting square tube; 303, support plate; 304, embedded groove; 4, experimental box; 5, storage box; 6, vacuum box; 7, first box door; 8, second box door; 9, third box door; 10, connecting hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] See also Figure 1-5 The utility model provides a technical solution: a new fume hood for laboratory use, comprising a filtering and ventilation mechanism 1, a releasing and purifying mechanism 2, a connecting component 3, an experimental box 4, a storage box 5, an exhaust box 6, a first box door 7, a second box door 8 and a third box door 9, the filtering and ventilation mechanism 1 is arranged on both sides of the storage box 5, the releasing and purifying mechanism 2 is arranged on the top of the exhaust box 6, the connecting component 3 is arranged inside the storage box 5, the storage box 5 is fixedly connected to the top of the experimental box 4, the exhaust box 6 is fixedly connected to the top of the storage box 5, the first box door 7 is rotatably connected to the front side of the experimental box 4, the second box door 8 is rotatably connected to the front side of the storage box 5, and the third box door 9 is rotatably connected to the front side of the exhaust box 6;

[0026] The filter-ventilation mechanism 1 comprises a ventilation component 101 and a filter component 102 . The ventilation component 101 is arranged on both sides of the storage box 5 , and the filter component 102 is arranged inside the ventilation component 101 .

[0027] In this embodiment: through the setting of the filtering and ventilation mechanism 1, the filtering and ventilation mechanism 1 includes a ventilation component 101 and a filtering component 102. Through the setting of the ventilation component 101, the ventilation component 101 can achieve the effect of connecting and fixing the filtering component 102, and at the same time, the ventilation component 101 can achieve the effect of ventilating the inside of the storage box 5. Through the setting of the filtering component 102, the filtering component 102 can achieve the effect of filtering dust and impurities in the external air, thereby preventing external dust from entering the storage box 5, and at the same time preventing impurities in the gas emitted by the chemicals in the storage box 5 from escaping. Through the setting of the releasing and purifying mechanism 2, the releasing and purifying mechanism 2 can achieve the effect of connecting the purification component 202, and at the same time, the gas emitted by the chemical lock in the storage box 5 can be transported to the purification component 202. Through the setting of the connecting component 3, the connecting component 3 can achieve the effect of connecting the storage box 5, and then the toxic gas in the experimental box 4 can enter the releasing component 201 through the connecting component 3.

[0028] As a technical optimization solution of the utility model, the ventilation component 101 includes a first card slot 1011, a second card slot 1012, a connecting frame 1013 and a vent 1014, the first card slot 1011 and the second card slot 1012 are both opened inside the connecting frame 1013, the connecting frame 1013 is fixedly connected to both sides of the storage box 5, and the vent 1014 is opened on both sides of the storage box 5.

[0029] In this embodiment: through the setting of the first card slot 1011, the first card slot 1011 can achieve the effect of clamping the first card strip 1023; through the setting of the second card slot 1012, the second card slot 1012 can achieve the effect of clamping the second card strip 1025; through the setting of the connecting frame 1013, the connecting frame 1013 can achieve the effect of connecting and fixing the filter plate 1022 and the dust removal plate 1026; through the setting of the vent 1014, the vent 1014 can achieve the effect of ventilating the storage box 5.

[0030] As a technical optimization solution of the utility model, the filter assembly 102 includes a first pull plate 1021, a filter plate 1022, a first clamping strip 1023, a second pull plate 1024, a second clamping strip 1025 and a dust removal plate 1026. The first pull plate 1021 is fixedly connected to the top of the filter plate 1022, the filter plate 1022 is clamped on the inner wall of the first clamping slot 1011, the first clamping strip 1023 is fixedly connected to the front and rear sides of the filter plate 1022, the second pull plate 1024 is fixedly connected to the top of the dust removal plate 1026, the second clamping strip 1025 is fixedly connected to the front and rear sides of the dust removal plate 1026, and the dust removal plate 1026 is clamped on the inner wall of the second clamping slot 1012.

[0031] In this embodiment: through the setting of the first pull plate 1021, the first pull plate 1021 can achieve the effect of connecting and supporting the filter plate 1022; through the setting of the first clamping strip 1023, the first clamping strip 1023 is used in conjunction with the first clamping slot 1011 to achieve the effect of providing connection conditions for the filter plate 1022 and the connecting frame 1013; through the setting of the filter plate 1022, the filter plate 1022 is made of the existing gas mask material, which contains activated carbon with comprehensive medicine added, and can effectively filter and treat toxic gases; through the setting of the second pull plate 1024, the second pull plate 1024 can achieve the effect of connecting and supporting the dust removal box; through the setting of the second clamping strip 1025, the second clamping strip 1025 is used in conjunction with the second clamping slot 1012 to achieve the effect of providing connection conditions for the dust removal plate 1026 and the connecting frame 1013.

[0032] As a technical optimization solution of the present invention, the release purification mechanism 2 includes a release component 201 and a purification component 202 . The release component 201 is arranged on the top of the vacuum box 6 , and the purification component 202 is arranged on the right side of the release component 201 .

[0033] In this embodiment: through the setting of the release component 201, the release component 201 can achieve the effect of connecting to the purification component 202, and at the same time, the gas emitted by the chemical lock in the storage box 5 can be transported to the purification component 202. Through the setting of the purification component 202, the purification component 202 can achieve the effect of purifying the toxic gas and then discharging it.

[0034] As a technical optimization solution of the utility model, the release component 201 includes a vacuum fan 2011, a release pipe 2012 and an extraction pipe 2013. The vacuum fan 2011 is fixedly connected to the top of the vacuum box 6, the release pipe 2012 is fixedly connected to the right side of the vacuum fan 2011, and the extraction pipe 2013 is fixedly connected to the bottom of the vacuum fan 2011.

[0035] In this embodiment: through the setting of the vacuum fan 2011, the vacuum fan 2011 is an existing fan, and through the setting of the release pipe 2012, the release pipe 2012 can provide a connection condition for the vacuum fan 2011 and the purification box 2022. Through the setting of the extraction pipe 2013, the extraction pipe 2013 can achieve the effect of connecting the storage box 5.

[0036] As a technical optimization solution of the utility model, the purification component 202 includes an exhaust pipe 2021, a purification box 2022, a purification block 2023 and a cover plate 2024. The exhaust pipe 2021 is fixedly connected to the right side of the purification box 2022, the bottom of the purification box 2022 is fixedly connected to the top of the vacuum box 6, the purification block 2023 is movably connected to the inside of the purification box 2022, and the cover plate 2024 is clamped on the front side of the purification box 2022.

[0037] In this embodiment: through the setting of the discharge pipe 2021, the discharge pipe 2021 can achieve the effect of discharging the purified gas, through the setting of the purification box 2022, the purification box 2022 can achieve the effect of connecting to the purification block 2023, through the setting of the purification block 2023, the material of the purification block 2023 is the same as the filter plate 1022, and through the setting of the cover plate 2024, the cover plate 2024 can achieve the effect of sealing the purification box 2022.

[0038] As a technical optimization solution of the utility model, the connecting component 3 includes a placement plate 301, a connecting square tube 302, a support plate 303 and an embedded groove 304. The placement plate 301 is clamped on the top of the support plate 303, the connecting square tube 302 is fixedly connected to the inner wall of the embedded groove 304, the support plate 303 is fixedly connected to the bottom inside the storage box 5, and the embedded groove 304 is opened on both sides of the support plate 303.

[0039] In this embodiment: by setting the placement plate 301, the placement plate 301 can achieve the effect of providing placement conditions for chemicals, and the shape of the placement plate 301 can be replaced as needed. By setting the connecting square tube 302, the connecting square tube 302 can achieve the effect of providing connection conditions for the storage box 5 and the experimental box 4. By setting the support plate 303, the support plate 303 can achieve the effect of connecting and supporting the placement plate 301. By setting the embedded groove 304, the embedded groove 304 can achieve the effect of connecting and fixing the connecting square tube 302.

[0040] As a technical optimization solution of the utility model, a connecting hole 10 is opened at the bottom of the vacuum box 6, and the inner wall of the connecting hole 10 is fixedly connected to the surface of the extraction pipe 2013.

[0041] In this embodiment, by providing the connection hole 10 , the connection hole 10 can achieve the effect of connecting and fixing the extraction tube 2013 .

[0042] Working principle: First, if it is necessary to carry out experimental operations in the experimental box 4, open the first box door 7, and then open the vacuum fan 2011, so that the vacuum fan 2011 exerts suction on the extraction pipe 2013, so that the extraction pipe 2013 exerts suction on the storage box 5 through the connecting hole 10, and then transmits the suction to the experimental box 4 through the connecting square tube 302. Then, the toxic gas generated during the experiment will be guided by the suction, enter the vacuum fan 2011 from the connecting square tube 302, the connecting hole 10 and the extraction pipe 2013, and then be transmitted from the release pipe 2012 to the purification box 2022. After being purified by the purification block 2023 therein, it is discharged from the exhaust pipe 2021 to the device for collecting the experimental gas for treatment. The purified gas will not cause much impact on the surrounding environment and personnel even if a small amount of leakage occurs during the transmission process. At the same time, the toxic gas extracted in the extraction pipe 2013 When the gas is sucked, the suction force will also be transmitted from the vent 1014 to the outside, so that the outside air enters it through the dust removal plate 1026 and the filter plate 1022, thereby diluting the toxic gas, thereby reducing the toxicity of the toxic gas again. Then, when the substances generated during the experiment in the experimental box 4 need to be stored, the second box door 8 can be opened, and they can be placed on the placement plate 301 in the storage box 5, and then the second box door 8 can be closed. Then, when the filter plate 1022 and the dust removal plate 1026 need to be replaced, they can be taken out and replaced through the first pull plate 1021 and the second pull plate 1024, and then inserted into the first card slot 1011 and the second card slot 1012 through the first card strip 1023 and the second card strip 1025. Then, when replacing the purification block 2023, the cover plate 2024 is opened, and the purification block 2023 in the purification box 2022 is taken out and replaced through isolation gloves or devices.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new fume hood for laboratory use, comprising a filtering and ventilation mechanism (1), a release and purification mechanism (2), a connecting component (3), an experimental box (4), a storage box (5), an exhaust box (6), a first box door (7), a second box door (8) and a third box door (9), characterized in that: The filtering and ventilation mechanism (1) is arranged on both sides of the storage box (5), the releasing and purifying mechanism (2) is arranged on the top of the exhaust box (6), the connecting component (3) is arranged inside the storage box (5), the storage box (5) is fixedly connected to the top of the experimental box (4), the exhaust box (6) is fixedly connected to the top of the storage box (5), the first box door (7) is rotatably connected to the front side of the experimental box (4), the second box door (8) is rotatably connected to the front side of the storage box (5), and the third box door (9) is rotatably connected to the front side of the exhaust box (6); The filtering and ventilation mechanism (1) comprises a ventilation component (101) and a filtering component (102); the ventilation component (101) is arranged on both sides of the storage box (5); and the filtering component (102) is arranged inside the ventilation component (101).

2. A new type of laboratory fume hood according to claim 1, characterized in that: The ventilation assembly (101) comprises a first card slot (1011), a second card slot (1012), a connecting frame (1013) and a vent (1014); the first card slot (1011) and the second card slot (1012) are both provided inside the connecting frame (1013); the connecting frame (1013) is fixedly connected to two sides of the storage box (5); and the vent (1014) is provided on two sides of the storage box (5).

3. A new type of laboratory fume hood according to claim 1, characterized in that: The filter assembly (102) comprises a first pull plate (1021), a filter plate (1022), a first clamping strip (1023), a second pull plate (1024), a second clamping strip (1025) and a dust removal plate (1026); the first pull plate (1021) is fixedly connected to the top of the filter plate (1022); the filter plate (1022) is clamped to the inner wall of the first clamping slot (1011); the first clamping strip (1023) is fixedly connected to the front and rear sides of the filter plate (1022); the second pull plate (1024) is fixedly connected to the top of the dust removal plate (1026); the second clamping strip (1025) is fixedly connected to the front and rear sides of the dust removal plate (1026); and the dust removal plate (1026) is clamped to the inner wall of the second clamping slot (1012).

4. A new type of laboratory fume hood according to claim 1, characterized in that: The release and purification mechanism (2) comprises a release component (201) and a purification component (202), wherein the release component (201) is arranged on the top of the vacuum box (6), and the purification component (202) is arranged on the right side of the release component (201).

5. A new type of laboratory fume hood according to claim 4, characterized in that: The release assembly (201) comprises an air pump (2011), a release pipe (2012) and an extraction pipe (2013); the air pump (2011) is fixedly connected to the top of the air pump box (6); the release pipe (2012) is fixedly connected to the right side of the air pump (2011); and the extraction pipe (2013) is fixedly connected to the bottom of the air pump (2011).

6. A new type of laboratory fume hood according to claim 4, characterized in that: The purification assembly (202) comprises a discharge pipe (2021), a purification box (2022), a purification block (2023) and a cover plate (2024); the discharge pipe (2021) is fixedly connected to the right side of the purification box (2022); the bottom of the purification box (2022) is fixedly connected to the top of the vacuum box (6); the purification block (2023) is movably connected to the inside of the purification box (2022); and the cover plate (2024) is snap-connected to the front side of the purification box (2022).

7. A new type of laboratory fume hood according to claim 1, characterized in that: The connecting component (3) comprises a placement plate (301), a connecting square tube (302), a support plate (303) and an embedded groove (304); the placement plate (301) is clamped on the top of the support plate (303); the connecting square tube (302) is fixedly connected to the inner wall of the embedded groove (304); the support plate (303) is fixedly connected to the bottom of the storage box (5); and the embedded groove (304) is provided on both sides of the support plate (303).

8. A new type of laboratory fume hood according to claim 5, characterized in that: A connecting hole (10) is provided at the bottom of the vacuum box (6), and the inner wall of the connecting hole (10) is fixedly connected to the surface of the extraction pipe (2013).

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