Fume hood with split pull-out cabinet

Abstract

The utility model relates to a ventilation cabinet technical field, concretely is a kind of ventilation cabinet with split type pull-out cabinet, it urgently needs to develop a new type of ventilation cabinet technology capable of intuitive display ventilation effect, to improve laboratory safety protection level, including wind cabinet body, the wind cabinet body includes suction chamber, the opening of the suction chamber is equipped with baffle cover, the baffle cover is used to open, close the opening of suction chamber, the inside of the suction chamber is provided with observation box, the inside of the observation box is provided with two ends as the flow passage of opening and storage cavity, a plurality of through holes are arranged between the storage cavity and flow passage, the inside of the storage cavity is filled with floating object, and floating object is displaced in storage cavity under the influence of airflow;When using, the floating object in storage cavity can be observed from the outside of the observation box, the air inlet opening of the flow passage is provided with the baffle plate fixed on the outer wall of observation box, the bottom of the wind cabinet body is provided with installation cavity.

Description

Technical Field

[0001] This utility model relates to the field of fume hood technology, specifically a fume hood with a split pull-out design. Background Technology

[0002] Fume hoods, as crucial safety equipment in laboratories, are primarily used to effectively remove toxic and harmful gases, fumes, dust, and other pollutants generated during experiments. They also prevent these pollutants from spreading into the laboratory environment, protecting the health of laboratory personnel and ensuring air quality. In various scientific research and experimental scenarios, such as chemical experiments, biological testing, and materials development, fume hoods, through continuous airflow, promptly remove harmful substances from the experimental area, providing a relatively safe operating space and serving as a key facility to ensure the safe and smooth conduct of experiments.

[0003] However, existing fume hoods have significant technical shortcomings. Their ventilation effect is difficult to observe visually; users typically rely solely on tactile sensation of airflow to roughly judge the ventilation status. This method is extremely limited when smokeless, odorless gases are generated during experiments, as these gases do not provide clear visual indicators like smoke. If a fume hood malfunctions or its ventilation is ineffective, and the experimenters fail to detect it in time, toxic and harmful gases could accumulate in the laboratory, potentially leading to safety accidents and posing a serious threat to the health and lives of laboratory personnel and the safety of the laboratory environment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a fume hood with a split pull-out cabinet. There is an urgent need to develop a new fume hood technology that can intuitively demonstrate the ventilation effect in order to improve the safety protection level of the laboratory.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fume hood with a split pull-out design, comprising a fume hood body, the fume hood body including an air extraction chamber, a cover installed at the opening of the air extraction chamber, the cover being used to open and close the opening of the air extraction chamber, an observation box being provided inside the air extraction chamber, the observation box having an opening at both ends of a flow channel and a storage cavity inside, a plurality of through holes being provided between the storage cavity and the flow channel, the storage cavity being filled with floating objects, the floating objects being able to move within the storage cavity due to the airflow; in use, the floating objects inside the storage cavity can be observed from the outside of the observation box.

[0008] Furthermore, a baffle plate fixed to the outer wall of the observation box is provided at the air inlet of the flow channel.

[0009] Furthermore, an installation cavity is provided at the bottom of the air handling unit body, and a cabinet is separately installed in the installation cavity.

[0010] Furthermore, the cabinet is equipped with doors and several drawers.

[0011] Furthermore, the bottom of the cabinet is equipped with casters.

[0012] Furthermore, an operating table is provided inside the air extraction chamber.

[0013] Furthermore, the bottom of the blower body is provided with support feet, and the cover is provided with a handle.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a fume hood with a split pull-out cabinet, which has the following advantages:

[0016] This fume hood features a split-type pull-out cabinet. Through the setting of the observation box, its internal storage cavity is connected to the flow channel and through holes. When the fume hood is working, the gas flows through the flow channel, causing floating objects to undergo dynamic changes such as displacement, floating, and circulation under the disturbance of the airflow. This structure allows the experimenter to clearly and intuitively judge the airflow direction, velocity, and distribution inside the fume hood by observing the movement of floating objects, even when dealing with smokeless and odorless experimental gases, without the need for visible media such as smoke. This enables precise control of the ventilation effect. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention, in which the cabinet can be removed from the mounting cavity;

[0019] Figure 3 This is a three-dimensional structural diagram of the observation box of this utility model;

[0020] Figure 4 This is a cross-sectional view of the observation box of this utility model.

[0021] In the diagram: 1. Air handling unit body; 2. Control panel; 3. Exhaust chamber; 4. Mounting chamber; 5. Cover; 6. Handle; 7. Support leg; 8. Cabinet body; 9. Door; 10. Drawer; 11. Roller; 12. Observation box; 13. Flow channel; 14. Storage chamber; 15. Through hole; 16. Floating element; 17. Baffle plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model discloses a fume hood with a split-type pull-out cabinet, comprising a fume hood body 1, with supporting feet 7 at the bottom of the fume hood body 1, an exhaust chamber 3, an operating table 2 inside the exhaust chamber 3, a cover 5 installed at the opening of the exhaust chamber 3, and a handle 6 on the cover 5 for opening and closing the opening of the exhaust chamber 3, an observation box 12 inside the exhaust chamber 3, and an airflow channel 13 with openings at both ends and a storage cavity 14 inside the observation box 12, with several through holes 15 between the storage cavity 14 and the airflow channel 13, and the storage cavity 14 filled with floating materials 16, which can be feathers, foam debris, ribbons, etc., and the floating materials 16 can be displaced within the storage cavity 14 due to airflow. Figure 4 The direction of the middle arrow indicates the airflow direction; during use, the floating animals in the storage cavity 14 can be observed from the outside of the observation box 12. A baffle plate 17 fixed to the outer wall of the observation box 12 is provided at the air inlet of the flow channel 13 to increase the air intake area.

[0024] The bottom of the blower body 1 is provided with an installation cavity 4, and a cabinet 8 is separately installed in the installation cavity 4. The cabinet 8 is provided with a door 9, a number of drawers 10, and a roller 11 at the bottom of the cabinet 8.

[0025] In summary, when using this fume hood with a split-type pull-out cabinet, first turn on the power and fan switch of the fume hood to put it into working condition. Then, observe the state of the floating animals 16 in the storage cavity 14 through the transparent outer wall of the observation box 12. If the floating animals 16 move, drift, or circulate, it indicates that the airflow in the fume hood is normal. Otherwise, it is necessary to check whether there is a malfunction in the ventilation system. After confirming that the airflow is normal, the experiment can be carried out. The state of the floating animals 16 can be observed at any time during the experiment to ensure stable ventilation and timely detection of abnormalities. After the experiment, turn off the fume hood fan and power, and observe again that the floating animals 16 have returned to a stationary state, thus completing the usage process.

[0026] 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 with a split-type pull-out cabinet, comprising a fume hood body (1), the fume hood body (1) including an exhaust chamber (3), a cover (5) installed at the opening of the exhaust chamber (3), the cover (5) being used to open and close the opening of the exhaust chamber (3), characterized in that: An observation box (12) is provided inside the air extraction chamber (3). The observation box (12) has a flow channel (13) with openings at both ends and a storage chamber (14). Several through holes (15) are provided between the storage chamber (14) and the flow channel (13). The storage chamber (14) is filled with floating objects (16). The floating objects (16) can be displaced in the storage chamber (14) due to the airflow. When in use, the floating objects (16) in the storage chamber (14) can be observed from the outside of the observation box (12).

2. A fume hood with a split-type pull-out cabinet as described in claim 1, characterized in that: A baffle plate (17) fixed to the outer wall of the observation box (12) is provided at the air inlet of the flow channel (13).

3. A fume hood with a split-type pull-out cabinet according to claim 2, characterized in that: The bottom of the air handling unit body (1) is provided with an installation cavity (4), and a cabinet (8) is separately installed in the installation cavity (4).

4. A fume hood with a split-type pull-out cabinet as described in claim 3, characterized in that: The cabinet (8) is provided with a door (9) and a number of drawers (10).

5. A fume hood with a split-type pull-out cabinet according to claim 4, characterized in that: The bottom of the cabinet (8) is provided with casters (11).

6. A fume hood with a split-type pull-out cabinet according to claim 1, characterized in that: An operating table (2) is provided inside the air extraction chamber (3).

7. A fume hood with a split-type pull-out cabinet according to claim 1, characterized in that: The bottom of the blower body (1) is provided with a support foot (7), and the cover (5) is provided with a handle (6).

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