A multifunctional laboratory fume hood
By introducing protective and spill-proof components into the multifunctional laboratory fume hood, the problem of the fume hood's inability to seal was solved, achieving effective sealing and liquid collection, improving the equipment's airtightness and safety, and extending its service life.
Patent Information
- Application Number
- CN202522266679.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-10-27
AI Technical Summary
Existing multi-functional laboratory fume hoods cannot form an effective physical seal when not in use, allowing dust or impurities from the outside air to enter the interior of the hood through the area below the sliding door, affecting the sealing performance and the lifespan of the internal equipment.
The system employs protective components, including telescopic components, lifting components, guide components, limiting components, magnetic components, and sealing components. The telescopic components drive the lifting components to move the sealing components vertically, forming an effective physical sealing barrier. Simultaneously, the spill prevention components collect any chemical liquids that may accidentally spill during the experiment through guide components and collection components.
It achieves effective sealing of the fume hood when not in use, preventing dust and impurities from entering, extending equipment life, and effectively collecting spilled chemical liquids to avoid safety accidents and improve the user experience.
Smart Images
Figure CN224938779U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of laboratory equipment technology, and in particular relates to a multifunctional laboratory fume hood. Background Technology
[0002] Laboratory fume hoods occupy a vital position in many fields such as biochemical laboratories, research institutes, medical institutions, and industrial R&D. They provide a safe operating environment with local negative pressure, effectively capturing and removing harmful gases, chemical vapors, and dust, ensuring the health and safety of laboratory personnel and the accuracy of experimental results. However, in practical applications, laboratory personnel face more complex and diverse operational needs. A multifunctional laboratory fume hood is now adopted to meet these needs.
[0003] However, existing multi-functional laboratory fume hoods have certain defects. They cannot ensure that the fume hood can form an effective physical sealing barrier when not in use. Because the fume hood cannot be tightly closed when not in use, dust or impurities in the outside air can enter the interior of the hood through the area below the sliding door. This not only affects the sealing performance and internal cleanliness of the fume hood, but also affects the service life of internal equipment such as fans and filters, thus seriously affecting the user experience of the equipment. Utility Model Content
[0004] This utility model addresses the shortcomings of existing multifunctional laboratory fume hoods, which cannot guarantee an effective physical seal when not in use. Because the fume hood cannot be tightly closed when not in use, dust or impurities from the outside air enter the hood through the area below the sliding door. This not only affects the fume hood's sealing performance and internal cleanliness but also shortens the lifespan of internal equipment such as fans and filters, severely impacting the user experience. The following technical solution is proposed: A multi-functional laboratory fume hood includes: Cabinet body, used for multi-functional laboratory fume hoods; The control panel is located within the cabinet. A sliding door, movably mounted on the cabinet body; The protective assembly includes a telescopic component, a lifting component, a guide component, a limiting component, a magnetic component, and a sealing component. The telescopic component is disposed on the cabinet body, and its movable end is drivenly connected to the lifting component. The guide component is connected to the lifting component and is movably disposed on the cabinet body. The limiting component is connected to the lifting component and is movably disposed on the cabinet body. The magnetic component is disposed on the lifting component. The sealing component is adhered to the magnetic component and remains in contact with the sliding door. The telescopic component drives the sealing component to move in the vertical direction via the lifting component.
[0005] Preferably, it also includes the spill prevention component, which includes a collection component, a first guide component, a second guide component, and a handle. The collection component is movably disposed on the cabinet body. The first guide component is connected to the collection component and is movably disposed on the cabinet body. The second guide component is connected to the collection component and is movably disposed on the cabinet body. The handle is connected to the collection component and drives the collection component to move in a vertical direction.
[0006] Preferably, the cabinet body is provided with a slide groove, and the limiting member is movably disposed in the slide groove.
[0007] Preferably, two guide members are provided on the lifting member, and the two guide members are respectively located at both ends of the lifting member, with the telescopic member sandwiched between the two guide members.
[0008] Preferably, the first guide and the second guide are located on opposite sides of the collecting member, and the first guide and the second guide are arranged in a one-to-one correspondence.
[0009] Preferably, two handles are provided on the collecting component, with the two handles located at both ends of the collecting component, and the handles are clamped between the first guide and the second guide.
[0010] The beneficial effects of this utility model are as follows: (1) It can ensure that when the fume hood is not in use, it forms an effective physical sealing barrier, effectively preventing dust or impurities in the outside air from entering the interior of the hood through the area below the sliding door. This not only improves the sealing performance and internal cleanliness of the fume hood, but also extends the service life of internal equipment such as fans and filters, thereby significantly improving the user experience of the equipment.
[0011] (2) It can effectively collect chemical liquids that are accidentally spilled during the experiment, and effectively prevent harmful or corrosive liquids from flowing from the workbench to the outside of the cabinet, thereby avoiding safety accidents such as personnel slipping or environmental pollution, and thus significantly improving the user experience of the equipment. Attached Figure Description
[0012] Figure 1 The diagram shown is a structural schematic of a multifunctional laboratory fume hood; Figure 2 The diagram shows the installation structure of a sliding door; Figure 3 What is shown is Figure 2 Schematic diagram of the installation structure in area A; Figure 4 The diagram shows the installation structure of the seal. Figure 5 The diagram shown is a schematic of the installation structure of the collection component; In the diagram: 1. Cabinet body; 2. Control panel; 3. Sliding door; 4. Telescopic component; 5. Lifting component; 6. Guide component; 7. Limiting component; 8. Magnetic component; 9. Sealing component; 10. Collection component; 11. Guide component one; 12. Guide component two; 13. Handle; 14. Slide rail. Detailed Implementation
[0013] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0014] Example 1 This utility model provides a multifunctional laboratory fume hood, such as Figures 1 to 5 As shown, the system includes: a cabinet body 1, a control panel 2, a sliding door 3, and protective components. Cabinet body 1 is a multi-functional laboratory fume hood. Inside cabinet body 1 are exhaust ducts, a fan, an air filter, a face velocity monitor, and an alarm device. Control panel 2 is located within cabinet body 1. Sliding door 3 is movably mounted within cabinet body 1 and consists of a high-strength transparent glass top and an iron baffle bottom. Protective components include a telescopic component 4, a lifting component 5, a guide component 6, a limiting component 7, a magnetic component 8, and a sealing component 9. Telescopic component 4 is located within cabinet body 1 and can be an electrically operated telescopic rod. The electrically operated telescopic rod is formed by the movable insertion and connection of two rod-shaped objects, filled with hydraulic oil. The extension and retraction of the two rod-shaped objects are achieved by the pressure and extraction of the hydraulic oil. This is existing technology and will not be described in detail here. The movable end of telescopic component 4 is driven to the lifting component 5. Component 5 can be a lifting plate. Guide component 6 is connected to lifting component 5. Guide component 6 consists of two parts: a guide rod and a limiting post. Guide component 6 is movably set in cabinet body 1. Limit component 7 is connected to lifting component 5. Limit component 7 can be a limiting block. Limit component 7 is movably set in cabinet body 1. Magnetic component 8 is set in lifting component 5. Magnetic component 8 can be a magnet. Sealing component 9 is bonded to magnetic component 8. Sealing component 9 can be a silicone sheet. The top of sealing component 9 is arc-shaped to ensure that sealing component 9 fits tightly against the bottom of sliding door 3. Sealing component 9 remains in contact with sliding door 3. Telescopic component 4 drives sealing component 9 to move vertically through lifting component 5. Cabinet body 1 is provided with slide groove 14. Limit component 7 is movably set in slide groove 14. There are two guide components 6 on lifting component 5. The two guide components 6 are located at both ends of lifting component 5. Telescopic component 4 is sandwiched between the two guide components 6.
[0015] With the help of protective components, an effective physical sealing barrier can be formed when the fume hood is not in use, effectively preventing dust or impurities in the outside air from entering the interior of the hood 1 through the area below the sliding door 3. This not only improves the airtightness and internal cleanliness of the fume hood, but also extends the service life of internal equipment such as fans and filters, thereby significantly improving the user experience of the equipment.
[0016] When in use, once the experiment is complete and the fume hood is no longer needed, first pull the sliding door 3 down to the bottom, then activate the telescopic component 4, causing its movable end to extend, thereby driving the lifting component 5 to move vertically upwards. The movement of the lifting component 5 causes the guide component 6 and the limiting component 7 to move synchronously. The guide component 6 and the limiting component 7 (moving along the slide groove 14) at both ends of the lifting component 5 work together to ensure that the lifting component 5 moves vertically upwards smoothly and evenly without deviation or jamming. Since the lifting component 5 drives the sealing component 9 to move synchronously through the magnetic component 8, as the lifting component 5 moves, the sealing component 9 will contact the iron baffle at the bottom of the sliding door 3. Under the magnetic force of the magnetic component 8, and with the top of the sealing component 9 being an arc shape that matches the iron baffle, the arc surface of the sealing component 9 tightly fits against the bottom iron baffle of the sliding door 3, forming an effective physical sealing barrier that isolates the interior of the cabinet 1 from the external environment.
[0017] Specifically, a control panel 2 is fixedly installed at one end of the cabinet body 1, a sliding door 3 is movably connected inside the cabinet body 1, a telescopic component 4 is fixedly installed below the sliding door 3 inside the cabinet body 1, a lifting component 5 is fixedly connected to the movable end of the telescopic component 4, the outer surface of the lifting component 5 is movably connected to the inside of the cabinet body 1, guide components 6 are fixedly connected to the bottom of both ends of the lifting component 5, the outer surface of the guide components 6 is movably connected to the inside of the cabinet body 1, limit components 7 are fixedly connected to both ends of the lifting component 5, a sliding groove 14 is opened on the outer surface of the limit component 7 inside the cabinet body 1, the outer surface of the limit component 7 is movably connected to the inside of the sliding groove 14, a magnetic component 8 is fixedly connected to the top of the lifting component 5, and a sealing component 9 is adhered to the top of the magnetic component 8.
[0018] In order to collect chemical liquids that were accidentally spilled during the experiment, such as Figures 1 to 5 As shown, it also includes an anti-overflow component, which includes a collection component 10, a first guide component 11, a second guide component 12, and a handle 13. The collection component 10 is movably mounted on the cabinet body 1 and can be a collection trough. The first guide component 11 is connected to the collection component 10 and is movably mounted on the cabinet body 1. The second guide component 12 is connected to the collection component 10 and is movably mounted on the cabinet body 1. Both the first and second guide components 12 can be guide plates. The first guide component 11 gradually recesses from left to right, and the second guide component 12 gradually recesses from right to left. Guide component 11 and guide component 2 12 work together to form a guiding channel to prevent liquid from flowing out of the cabinet 1 during the experiment. Handle 13 is connected to the collection component 10. Handle 13 drives the collection component 10 to move in the vertical direction. Guide component 11 and guide component 2 12 are located on both sides of the collection component 10. Guide component 11 and guide component 2 12 are set in a one-to-one correspondence. There are two handles 13 on the collection component 10. The two handles 13 are located at both ends of the collection component 10. The handles 13 are clamped between guide component 11 and guide component 2 12.
[0019] With the help of spill prevention components, chemical liquids that are accidentally spilled during the experiment can be effectively collected, preventing harmful or corrosive liquids from flowing from the work surface to the outside of the cabinet 1, thereby avoiding safety accidents such as slipping or environmental pollution, and significantly improving the user experience of the equipment.
[0020] During use, if a chemical liquid is accidentally splashed or spilled on the work surface of cabinet 1 during an experiment and flows along the work surface, the spill prevention component will immediately take effect. The spilled liquid will flow onto guide 11 or guide 12 above the sliding door 3. Since guide 11 is designed to gradually concave from left to right and guide 12 is designed to gradually concave from right to left, the two work together to form a "V"-shaped guide channel that is low in the middle and high on both sides. This channel can collect and guide the overflow liquid from different directions into the collection container 10. When the inside of the collection container 10 needs to be cleaned, the operator can pull the handles 13 at both ends of the collection container 10 to remove the collection container 10, guide 11 and guide 12 together from the inside of cabinet 1, making it convenient to clean and empty the collection container 10. After maintenance, it can be put back.
[0021] Specifically, inside the cabinet body 1, a collection component 10 is movably connected to the inside of the sealing component 9. A guide component 11 is fixedly connected to the top of one side of the collection component 10, and a guide component 2 12 is fixedly connected to the top of the other side of the collection component 10. Handles 13 are fixedly connected to the top of both ends of the collection component 10.
[0022] Working Principle: In actual use, when the fume hood is no longer needed after the experiment, first pull the sliding door 3 down to the bottom. Then, activate the telescopic component 4, extending its movable end. This drives the lifting component 5 to move vertically upwards. The movement of the lifting component 5 causes the guide component 6 and the limiting component 7 to move synchronously. The guide component 6 and the limiting component 7 (moving along the slide groove 14) at both ends of the lifting component 5 work together to ensure that the lifting component 5 moves vertically upwards smoothly and evenly without deviation or jamming. Since the lifting component 5 drives the sealing component 9 to move synchronously through the magnetic component 8, the sealing component 9 will contact the sliding door as the lifting component 5 moves. The bottom iron baffle of the sliding door 3, under the magnetic force of the magnetic component 8, and with the top of the sealing component 9 being an arc shape that matches the iron baffle, allows the arc surface of the sealing component 9 to fit tightly against the bottom iron baffle of the sliding door 3, forming an effective physical sealing barrier that isolates the inside of the cabinet 1 from the external environment. This ensures that when the fume hood is not in use, an effective physical sealing barrier is formed, effectively preventing dust or impurities in the outside air from entering the interior of the cabinet 1 through the area below the sliding door 3. This not only improves the airtightness and internal cleanliness of the fume hood, but also extends the service life of internal equipment such as fans and filters, thereby significantly improving the user experience of the equipment. Then, during the experiment, if a chemical liquid accidentally splashes or overflows on the work surface of cabinet 1 and flows along the work surface, the spill prevention component will immediately activate. The overflowing liquid will flow onto guide 11 or guide 12 above the sliding door 3. Since guide 11 is designed to gradually concave from left to right, and guide 12 is designed to gradually concave from right to left, the two together form a "V"-shaped guide channel that is low in the middle and high on both sides. This channel can collect and guide the overflowing liquid from different directions to its collection component 1. Inside the cabinet 1, when the inside of the collection component 10 needs cleaning, the operator can pull the handles 13 at both ends of the collection component 10 to remove the collection component 10, guide component 11, and guide component 2 12 together from inside the cabinet 1. This makes it convenient to clean and empty the collection component 10. After maintenance, it can be put back in. This can effectively collect chemical liquids that are accidentally spilled during the experiment and effectively prevent harmful or corrosive liquids from flowing from the work surface to the outside of the cabinet 1, thereby avoiding safety accidents such as personnel slipping or environmental pollution, and thus significantly improving the user experience of the equipment. The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A multifunctional laboratory fume hood, characterized in that, include: Cabinet body (1), used for multi-functional laboratory fume hood; Control panel (2) is located in the cabinet (1); A movable door (3) is set in the cabinet body (1); The protective component includes a telescopic component (4), a lifting component (5), a guide component (6), a limiting component (7), a magnetic component (8), and a sealing component (9). The telescopic component (4) is disposed on the cabinet body (1), and the movable end of the telescopic component (4) is drivenly connected to the lifting component (5). The guide component (6) is connected to the lifting component (5) and is movably disposed on the cabinet body (1). The limiting component (7) is connected to the lifting component (5) and is movably disposed on the cabinet body (1). The magnetic component (8) is disposed on the lifting component (5). The sealing component (9) is adhered to the magnetic component (8) and remains in contact with the movable door (3). The telescopic component (4) drives the sealing component (9) to move in the vertical direction through the lifting component (5).
2. The multifunctional laboratory fume hood according to claim 1, characterized in that: It also includes an anti-overflow component, which includes a collection component (10), a first guide component (11), a second guide component (12), and a handle (13). The collection component (10) is movably disposed on the cabinet body (1). The first guide component (11) is connected to the collection component (10) and is movably disposed on the cabinet body (1). The second guide component (12) is connected to the collection component (10) and is movably disposed on the cabinet body (1). The handle (13) is connected to the collection component (10) and drives the collection component (10) to move in the vertical direction.
3. A multifunctional laboratory fume hood according to claim 1, characterized in that: The cabinet body (1) is provided with a slide groove (14), and the limiting member (7) is movably disposed in the slide groove (14).
4. A multifunctional laboratory fume hood according to claim 1, characterized in that: Two guide members (6) are provided on the lifting member (5), and the two guide members (6) are located at the two ends of the lifting member (5), and the telescopic member (4) is sandwiched between the two guide members (6).
5. A multifunctional laboratory fume hood according to claim 2, characterized in that: The first guide (11) and the second guide (12) are located on both sides of the collecting component (10), and the first guide (11) and the second guide (12) are arranged in a one-to-one correspondence.
6. A multifunctional laboratory fume hood according to claim 2, characterized in that: Two handles (13) are provided on the collection member (10). The two handles (13) are located at both ends of the collection member (10) respectively. The handles (13) are sandwiched between the first guide (11) and the second guide (12).