Fuming cupboard with isolated operation

Abstract

The utility model relates to the technical field of fuming cupboards, in particular to an isolation operation fuming cupboard which comprises a fuming cupboard body, an operation window is arranged on the front face of the fuming cupboard body, operation box gloves are arranged on the operation window, an air outlet is formed in the center of the top of the fuming cupboard body, and a filter screen is installed in the air outlet. A filter screen is arranged on the top of the fuming cupboard body, a cleaning assembly is arranged at the top of the filter screen and located on the top of the fuming cupboard body, a control panel and a buzzer are arranged on the left side of the outer portion of the fuming cupboard body, and a test bed is arranged in the fuming cupboard body. The drying agent can be placed in the placing drawer during use, moisture in internal air is adsorbed, the buzzer gives an alarm when the internal moisture exceeds a critical value, and a worker can replace the internal drying agent or turn on the heating pipe and the exhaust fan to heat and dry the internal air.

Description

Technical Field

[0001] This utility model relates to the field of fume hood manufacturing technology, specifically a fume hood for isolated operation. Background Technology

[0002] A fume hood, also known as a smoke hood, is a large piece of equipment in a chemical laboratory. Its purpose is to reduce the contact between experimenters and harmful gases. For complete isolation, a glove box is required. A fume hood is the primary barrier to protect personnel from the hazards of toxic chemical fumes.

[0003] Existing fume hoods have the following shortcomings: they cannot absorb and filter moisture in the air when ventilating the outside, and excessive internal moisture can affect the experimental results. In addition, the filter surface needs to be manually cleaned regularly during external ventilation, which makes the operation cumbersome.

[0004] Therefore, it is particularly important to design a fume hood for isolated operation to overcome the above-mentioned technical defects and improve overall practicality. Utility Model Content

[0005] The purpose of this invention is to provide a fume hood for isolated operation to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fume hood for isolated operation includes a fume hood body, an operation window on the front of the fume hood body, an operation box glove on the operation window, an air outlet at the center of the top of the fume hood, a filter screen installed inside the air outlet, a cleaning component on top of the filter screen and located at the top of the fume hood, a control panel and a buzzer on the left side of the exterior of the fume hood, and a test bench inside the fume hood.

[0008] As a preferred embodiment of this utility model, a ventilation pipe is provided on the inner side of the top of the fume hood and at the bottom of the filter screen. An exhaust fan is installed inside the ventilation pipe. Multiple sets of heating pipes are provided at the bottom of the exhaust fan and inside the ventilation pipe. A drawer is provided at the bottom of the heating pipes and on the inner side of the top of the fume hood.

[0009] As a preferred embodiment of this utility model, the drawer is provided with a handle on the outside and uniform ventilation holes on the inner bottom plate.

[0010] As a preferred embodiment of this utility model, a humidity sensor is installed on the inner side of the fume hood and on the top side wall of the inner side of the test bench, and a ventilation plate is installed on the top inner side of the fume hood and at the bottom of the drawer, with uniform ventilation holes provided on the ventilation plate.

[0011] As a preferred embodiment of this utility model, the cleaning component includes a fixing plate, the bottom of which is fixedly connected to the top of the fume hood, and an electric push rod is fixedly connected to one side. The filter screen is provided with sliding grooves on both sides and at the top of the fume hood body. A push plate is installed at the output end of the electric push rod. The bottom of both sides of the push plate is provided with sliders that are adapted to and slidably connected to the sliding grooves. A cleaning brush is fixedly provided at the bottom of the push plate corresponding to the top position of the filter screen.

[0012] As a preferred embodiment of this utility model, the control panel is electrically connected to the buzzer, exhaust fan, heating element, humidity sensor, and electric push rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, a fume hood designed for isolated operation is used. Utilizing a structure that includes drawers, an exhaust fan, a heating element, a humidity sensor, and a buzzer, the desiccant can be placed in the drawer to absorb moisture from the internal air. When the internal humidity exceeds a preset value, the buzzer sounds an alarm. Operators can then replace the desiccant or turn on the heating element and exhaust fan to heat and dry the internal air, preventing excessive internal humidity from affecting experimental results.

[0015] In this utility model, a fume hood with isolated operation is designed. By utilizing the structure of the cleaning component, the electric push rod is controlled to extend and retract during use, thereby driving the bottom cleaning brush to clean the filter screen. The sliders on both sides of the push plate are slidably connected to the slide groove, thereby improving the stability of the cleaning brush movement, facilitating daily use, improving personnel work efficiency, and avoiding the need for regular cleaning of the filter screen. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the fume hood for isolated operation according to this utility model;

[0017] Figure 2 This is an enlarged structural diagram of point A in the isolation operation of this utility model;

[0018] Figure 3 This is an internal structural diagram of the fume hood for isolated operation according to this utility model;

[0019] Figure 4 This is a structural diagram of the drawer for isolating operations according to this utility model.

[0020] In the diagram: 1. Fume hood body; 11. Ventilation duct; 12. Exhaust fan; 13. Ventilation duct; 14. Drawer; 15. Handle; 16. Humidity sensor; 17. Air distribution panel; 2. Operating window; 3. Operating box glove; 4. Air outlet; 5. Filter screen; 6. Cleaning assembly; 61. Fixing plate; 62. Electric push rod; 63. Slide rail; 64. Push plate; 65. Slider; 66. Cleaning brush; 7. Control panel; 8. Buzzer; 9. Test bench. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0026] A fume hood for isolated operation includes a fume hood body 1, an operation window 2 is provided on the front of the fume hood body 1, and an operation box glove 3 is provided on the operation window 2. The staff can perform isolated experimental operations inside by wearing the operation box glove 3 to avoid direct contact with the experimental materials inside.

[0027] The fume hood 1 has a ventilation duct 11 located inside the top and at the bottom of the filter 5. An exhaust fan 12 is installed inside the ventilation duct 11 to accelerate ventilation. Multiple heating tubes 13 are installed at the bottom of the exhaust fan 12 and inside the ventilation duct 11 to heat and dry the internal air. A drawer 14 is located at the bottom of the heating tubes 13 and inside the top of the fume hood 1 to store desiccant. A handle 15 is provided on the outside of the drawer 14 for easy operation. The inner bottom plate has uniform ventilation holes. A humidity sensor 16 is installed on the inner top side wall of the fume hood 1 and inside the test bench 9 to detect internal humidity. A distribution plate 17 with uniform ventilation holes is installed on the inner top of the fume hood 1 and at the bottom of the drawer 14 to provide ventilation.

[0028] In this embodiment, please refer to Figure 1 and Figure 3 The fume hood 1 has an air outlet 4 at the top center, and a filter screen 5 is installed inside the air outlet 4 to filter dust in the outside air. A cleaning component 6 is installed on top of the filter screen 5 and at the top of the fume hood 1. A control panel 7 and a buzzer 8 are installed on the left side of the outside of the fume hood 1. The control panel 7 is used for overall control, and the buzzer 8 is used for reminders. A test bench 9 is installed inside the fume hood 1 for experimental operations.

[0029] The cleaning component 6 includes a fixing plate 61, the bottom of which is fixedly connected to the top of the fume hood 1, and an electric push rod 62 is fixedly connected to one side. The filter screen 5 is provided with sliding grooves 63 on both sides and at the top of the fume hood body 1. A push plate 64 is installed at the output end of the electric push rod 62. The bottom sides of the push plate 64 are provided with sliders 65 that are adapted to and slidably connected to the sliding grooves 63. A cleaning brush 66 is fixedly provided at the bottom of the push plate 64 corresponding to the top position of the filter screen 5. In actual use, by controlling the electric push rod 62 to extend and retract, the cleaning brush 66 at the bottom of the push plate 64 is driven to clean the surface of the filter screen 5. The sliders 65 at the bottom sides of the push plate 64 slide with the sliding grooves 63, making the cleaning brush 66 more stable when moving.

[0030] The practical workflow is as follows: When using this fume hood for isolated operation, the operator needs to place the desiccant inside the drawer 14. The operator can wear the operating gloves 3 to conduct isolated experimental operations inside, avoiding direct contact with the internal experimental materials. After a period of use, when the internal humidity exceeds the pre-critical value, the humidity sensor 16 detects the information and transmits the signal to the control panel 7. The control panel 7 activates the buzzer 8 to remind the operator. At this time, the operator can replace the internal desiccant or turn on the heating tube 13 and exhaust fan 12 to accelerate the internal and external air circulation and heat and dry the internal air, avoiding excessive internal humidity from affecting the experimental results. During use, when a lot of dust accumulates on the surface of the filter screen 5, the electric push rod 62 can be controlled to extend and retract, thereby driving the cleaning brush 66 at the bottom of the push plate 64 to clean the surface of the filter screen 5. The bottom sliders 65 on both sides of the push plate 64 slide with the slide groove 63, making the cleaning brush 66 more stable when moving, so that the filter screen 5 does not need to be manually cleaned regularly.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fume hood for isolated operation, comprising a fume hood body (1), characterized in that: The fume hood body (1) has an operation window (2) on the front, and an operation box glove (3) is provided on the operation window (2). The fume hood (1) has an air outlet (4) at the top center, and a filter screen (5) is installed inside the air outlet (4). A cleaning component (6) is provided on the top of the filter screen (5) and on the top of the fume hood (1). A control panel (7) and a buzzer (8) are provided on the left side of the outside of the fume hood (1). A test bench (9) is provided inside the fume hood (1).

2. The fume hood for isolated operation according to claim 1, characterized in that: A ventilation pipe (11) is provided on the inner top of the fume hood (1) and at the bottom of the filter screen (5). An exhaust fan (12) is installed inside the ventilation pipe (11). Multiple sets of heating pipes (13) are provided at the bottom of the exhaust fan (12) and inside the ventilation pipe (11). A drawer (14) is provided at the bottom of the heating pipes (13) and on the inner top of the fume hood (1).

3. A fume hood for isolated operation according to claim 2, characterized in that: The drawer (14) is provided with a handle (15) on the outside and with uniform ventilation holes on the inner bottom plate.

4. A fume hood for isolated operation according to claim 1, characterized in that: A humidity sensor (16) is installed on the inner side of the fume hood (1) and on the top side wall of the test bench (9). A ventilation plate (17) is installed on the top inner side of the fume hood (1) and at the bottom of the drawer (14). The ventilation plate (17) has uniform ventilation holes.

5. A fume hood for isolated operation according to claim 1, characterized in that: The cleaning component (6) includes a fixing plate (61), the bottom of which is fixedly connected to the top of the fume hood (1), and an electric push rod (62) is fixedly connected to one side. The filter screen (5) is provided with sliding grooves (63) on both sides and at the top of the fume hood body (1). A push plate (64) is installed at the output end of the electric push rod (62). The bottom sides of the push plate (64) are provided with sliders (65) that are adapted to and slidably connected to the sliding grooves (63). A cleaning brush (66) is fixedly provided at the bottom of the push plate (64) and at the position corresponding to the top of the filter screen (5).

6. A fume hood for isolated operation according to claim 1, characterized in that: The control panel (7) is electrically connected to the buzzer (8), exhaust fan (12), heating tube (13), humidity sensor (16), and electric push rod (62).

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