Movable ventilation equipment for medicine laboratory

Abstract

The utility model relates to the technical field of laboratory equipment, in particular to movable ventilation equipment for a medicine laboratory. According to the ventilation cabinet, the first air outlet adjusting assembly and the second air outlet adjusting assembly are arranged in the ventilation cabinet, the problem that the inclination angle of an air curtain cannot be adjusted through an existing ventilation device can be effectively solved, and the first air outlet in the first air outlet adjusting assembly is in linkage with the baffle through the connecting plate and the connecting rod; the inclination angle of the first air outlet can be adjusted by moving the baffle to form an obliquely downward air curtain, and in addition, the angle of the second air outlet can be adjusted by rotating the knob to form an obliquely upward air curtain, so that an experimenter can freely adjust the inclination angle of the first air outlet and the inclination angle of the second air outlet according to own needs; and the intersection of the air curtains is always located on the front side of the experiment position, so that an experimenter can perform experiment operation at different positions of the experiment cavity, and the safety of the experimenter can be better protected.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment technology, specifically to a mobile ventilation device for a pharmaceutical laboratory. Background Technology

[0002] In drug experiments, many drugs are highly volatile and harmful to the human body. Prolonged exposure to such drugs can cause significant damage to the health of laboratory personnel. Therefore, to enhance the safety of drug experiments and further protect the safety of laboratory personnel, protective measures are often implemented in the experimental environment. This has led to the development of fume hoods, which effectively remove harmful gases generated during experiments, thereby reducing the harm to the human body and protecting the safety of laboratory personnel.

[0003] Chinese patent CN201921321107.0, published on September 8, 2020, discloses a laboratory fume hood, comprising a cabinet body, a first glass plate, and a second glass plate. An experimental chamber is formed on one surface of the cabinet body, and a first ventilation chamber and a second ventilation chamber are formed on the inner wall of the experimental chamber. A connecting channel exists between the first and second ventilation chambers. This patent utilizes a first blower to discharge outside air along a first exhaust duct, forming a downward-sloping air curtain, and a second blower to discharge outside air along a second exhaust duct, forming an upward-sloping air curtain. The two air curtains work together to prevent harmful gases from escaping from the experimental chamber. Furthermore, the airflow within the experimental chamber is more easily drawn into the first and second ventilation chambers and discharged under the pressure of the airflow. Additionally, the conical hood features spiral blades, causing the airflow entering the hood to vortex, further facilitating the discharge of gases from the experimental chamber.

[0004] However, the tilt angles of the first and second air ducts in this patent are fixed, which means that the tilt angle of the air curtain is also fixed and cannot be adjusted as needed. However, due to individual differences among experimenters, different experimenters will perform experiments at different positions in the experimental chamber. If the intersection of the air curtains is located behind the experimental position, it will not provide a good protective effect. Utility Model Content

[0005] (a) Technical problem: The purpose of this utility model is to provide a mobile ventilation device for pharmaceutical laboratories, which solves the problem that the existing ventilation settings cannot adjust the tilt angle of the air curtain.

[0006] (II) Technical Solution: To achieve the above objectives, this utility model provides the following technical solution:

[0007] A portable ventilation system for a pharmaceutical laboratory includes a fume hood, a first air outlet regulating component, and a second air outlet regulating component. Both the first and second air outlet regulating components are movably disposed within the fume hood. The first air outlet regulating component includes a baffle, a first corrugated pipe, a first air outlet, a connecting plate, a connecting rod, a first rotating shaft, a second corrugated pipe, a first duct, and a first blower. One end of the first corrugated pipe is fixedly connected to the rear end of the baffle, and the other end of the first corrugated pipe is fixedly connected to the connecting plate. The first air outlet is located on the connecting plate, and the first corrugated pipe communicates with the first air outlet. One end of the connecting rod is fixedly connected to the side end of the connecting plate, and the other end of the connecting rod is fixedly sleeved on the first rotating shaft. One end of the second corrugated pipe is connected to the... The upper end of the baffle is fixedly connected, the other end of the second corrugated pipe is perpendicularly connected to the first air duct, the end of the first air duct away from the second corrugated pipe is fixedly connected to the first blower, and an air duct connecting the second corrugated pipe and the first corrugated pipe is provided inside the baffle. The second air outlet adjustment component includes a second air duct, a second air outlet, a second rotating shaft, a knob, a third air duct, and a second blower. The second air outlet is located on the second air duct. One end of the second rotating shaft is fixedly connected to one end of the second air duct, and the other end of the second rotating shaft is fixedly connected to the knob. One end of the third air duct is movably sleeved inside the end of the second air duct away from the second rotating shaft. The second air duct and the third air duct are connected. The other end of the third air duct is fixedly connected to the second blower.

[0008] Specifically, the fume hood is provided with an experimental chamber, a baffle placement chamber and a sliding groove. The baffle placement chamber is located above the front side of the experimental chamber. The baffle and the second corrugated pipe are both movably disposed in the baffle placement chamber. The first air duct is disposed in the upper side wall of the baffle placement chamber.

[0009] Specifically, the sliding groove is located on the left side wall of the experimental chamber, the end of the first rotating shaft away from the connecting rod is movably disposed in the sliding groove, and the first bellows, the first air outlet, the connecting plate and the connecting rod are all movably disposed in the experimental chamber.

[0010] Specifically, the second air duct and the second air outlet are both movably disposed within the experimental chamber, the second rotating shaft is movably disposed within the right side wall of the experimental chamber, and the third air duct is disposed within the left side wall of the experimental chamber.

[0011] Specifically, both the first blower and the second blower are fixedly installed on the left side of the fume hood.

[0012] Specifically, the fume hood is also equipped with an exhaust fan, an exhaust fan placement slot, a fourth air duct, a control panel, and casters. The exhaust fan placement slot is located at the rear end of the experimental chamber, and the exhaust fan is fixedly installed in the exhaust fan placement slot.

[0013] Specifically, the fourth air duct is located at the rear end of the fume hood, and the fourth air duct is connected to the experimental chamber through the exhaust fan placement slot.

[0014] Specifically, the control panel is located on the right side of the fume hood, and the control panel is electrically connected to the exhaust fan, the first blower, and the second blower.

[0015] Specifically, the casters are fixedly mounted at the bottom of the fume hood.

[0016] (III) Beneficial Effects: This utility model effectively solves the problem that existing ventilation systems cannot adjust the tilt angle of the air curtain by setting a first air outlet adjustment component and a second air outlet adjustment component in the fume hood. The first air outlet in the first air outlet adjustment component is linked with the baffle through a connecting plate and a connecting rod. The tilt angle of the first air outlet can be adjusted by moving the baffle to form a downward tilted air curtain. Moreover, as the baffle moves upward, the downward tilt angle of the first air outlet gradually increases. In addition, the angle of the second air outlet can be adjusted by turning the knob to form an upward tilted air curtain. Therefore, the experimenters can freely adjust the tilt angle of the first and second air outlets according to their own needs, so that the intersection of the air curtains is always in front of the experimental position. This not only allows the experimenters to perform experimental operations in different positions in the experimental chamber, but also better protects the safety of the experimenters. Attached Figure Description

[0017] The technical solution and beneficial effects of this utility model will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of a portable ventilation device for a pharmaceutical laboratory according to the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of a portable ventilation device for a pharmaceutical laboratory according to the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the first air outlet regulating component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the second air outlet regulating component of this utility model;

[0022] Figure 5This is a cross-sectional view of the fume hood of this utility model.

[0023] In the diagram: 10. Fume hood; 11. Experimental chamber; 12. Baffle placement chamber; 13. Sliding groove; 14. Exhaust fan; 15. Exhaust fan placement groove; 17. Fourth duct; 18. Control panel; 19. Casters; 20. First air outlet adjustment assembly; 21. Baffle; 22. First corrugated pipe; 23. First air outlet; 24. Connecting plate; 25. Connecting rod; 26. First rotating shaft; 27. Second corrugated pipe; 28. First duct; 29. ​​First blower; 30. Second air outlet adjustment assembly; 31. Second duct; 32. Second air outlet; 33. Second rotating shaft; 34. Knob; 35. Third duct; 36. Second blower. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] like Figure 1 — Figure 5 As shown, the present invention describes a portable ventilation device for a pharmaceutical laboratory, including a fume hood 10, a first air outlet adjustment component 20, and a second air outlet adjustment component 30. Both the first air outlet adjustment component 20 and the second air outlet adjustment component 30 are movably disposed within the fume hood 10. The first air outlet adjustment component 20 and the second air outlet adjustment component 30 are used to adjust the tilt angle of the formed air curtain, thereby better protecting the safety of laboratory personnel.

[0026] The first air outlet regulating component 20 includes a baffle 21, a first corrugated pipe 22, a first air outlet 23, a connecting plate 24, a connecting rod 25, a first rotating shaft 26, a second corrugated pipe 27, a first air duct 28, and a first blower 29. The baffle 21 is made of transparent glass to facilitate observation of the experiments inside the fume hood 10 by the experimenters. One end of the first corrugated pipe 22 is fixedly connected to the rear end of the baffle 21, and the other end of the first corrugated pipe 22 is fixedly connected to the connecting plate 24. The first air outlet 23 is located on the connecting plate 24, and the first corrugated pipe 22 communicates with the first air outlet 23. One end of the connecting rod 25... The connecting rod 25 is fixedly connected to the side end of the connecting plate 24, and the other end of the connecting rod 25 is fixedly sleeved on the first rotating shaft 26. The first rotating shaft 26 is used to restrict the movement direction of the connecting rod 25, so that the end of the connecting rod 25 connected to the first rotating shaft 26 can only move in the same horizontal plane. One end of the second corrugated pipe 27 is fixedly connected to the upper end of the baffle 21, and the other end of the second corrugated pipe 27 is perpendicularly connected to the first air duct 28. The end of the first air duct 28 away from the second corrugated pipe 27 is fixedly connected to the first blower 29. The baffle 21 is provided with an air duct (not shown in the figure) that connects the second corrugated pipe 27 and the first corrugated pipe 22.

[0027] When the baffle 21 moves upward, the second corrugated pipe 27 is compressed. The baffle 21 drives the connecting plate 24 to move upward through the first corrugated pipe 22. The connecting plate 24 drives the connecting rod 25 to move upward at the end connected to it. Due to the restriction of the first rotating shaft 26, the tilt angle of the connecting rod 25 changes. The connecting rod 25 drives the tilt angle of the connecting plate 24 to change, thereby causing the first air outlet 23 to deflect downward. The connecting plate 24 also drives the first corrugated pipe 22 to bend. Moreover, as the baffle 21 continues to move upward, the angle of the first air outlet 23 deflecting downward gradually increases, and the angle of the first corrugated pipe 22 bending also gradually increases.

[0028] When the first blower 29 is started, outside air enters the first air duct 28 through the first blower 29, then enters the baffle 21 through the second corrugated pipe 27, then enters the first corrugated pipe 22, and is discharged through the first air outlet 23, forming a downward-sloping air curtain.

[0029] The second air outlet regulating component 30 includes a second air duct 31, a second air outlet 32, a second rotating shaft 33, a knob 34, a third air duct 35, and a second blower 36. The second air outlet 32 ​​is located on the second air duct 31. One end of the second rotating shaft 33 is fixedly connected to one end of the second air duct 31, and the other end of the second rotating shaft 33 is fixedly connected to the knob 34. One end of the third air duct 35 is movably sleeved inside the end of the second air duct 31 away from the second rotating shaft 33. This arrangement ensures that the rotation of the second air duct 31 will not drive the rotation of the third air duct 35. The second air duct 31 and the third air duct 35 are connected, and the other end of the third air duct 35 is fixedly connected to the second blower 36.

[0030] Rotate knob 34, which drives second air duct 31 to rotate via second shaft 33, thereby adjusting the angle of second air outlet 32 ​​and starting second blower 36. Outside air enters third air duct 35 through second blower 36, then enters second air duct 31, and is discharged through second air outlet 32, forming an upward-sloping air curtain.

[0031] The fume hood 10 is equipped with an experimental chamber 11, a baffle placement chamber 12, and a sliding groove 13. The experimental chamber 12 is used as an experimental site. The baffle placement chamber 12 is located above the front side of the experimental chamber 11. The baffle 21 and the second corrugated pipe 27 are both movably disposed in the baffle placement chamber 12. The contact end between the baffle 21 and the baffle placement chamber 12 is provided with a damping pad, so that the baffle 21 can be moved up and down and stop at a designated position by human pushing. The first air duct 28 is disposed in the upper side wall of the baffle placement chamber 12.

[0032] Furthermore, the sliding groove 13 is located on the left side wall of the experimental chamber 11, and the end of the first rotating shaft 26 away from the connecting rod 25 is movably disposed in the sliding groove 13. The sliding groove 13 is used to restrict the movement direction of the first rotating shaft 26, so that the first rotating shaft 26 can only move horizontally. The first bellows 22, the first air outlet 23, the connecting plate 24 and the connecting rod 25 are all movably disposed in the experimental chamber 11.

[0033] Furthermore, the second air duct 31 and the second air outlet 32 ​​are both movably disposed within the experimental chamber 11, the second rotating shaft 33 is movably disposed within the right side wall of the experimental chamber 11, and the shaft of the second rotating shaft 33 is provided with a damping pad, so that the second rotating shaft 33 can be rotated and stopped at a designated position by human intervention, and the third air duct 35 is disposed within the left side wall of the experimental chamber 11.

[0034] Furthermore, both the first blower 29 and the second blower 36 are fixedly installed on the left side of the fume hood 10.

[0035] The fume hood 10 is also equipped with an exhaust fan 14, an exhaust fan placement slot 15, a fourth air duct 17, a control panel 18, and casters 19. The exhaust fan placement slot 15 is located at the rear end of the experimental chamber 11, and the exhaust fan 14 is fixedly installed in the exhaust fan placement slot 15.

[0036] Furthermore, the fourth air duct 17 is located at the rear end of the fume hood 10. The fourth air duct 17 is connected to the exhaust gas treatment device, and the fourth air duct 17 is connected to the experimental chamber 11 through the exhaust fan placement slot 15. When the exhaust fan 14 is started, the exhaust fan 14 can draw the air out of the experimental chamber 11, so that the gas in the experimental chamber 11 enters the exhaust fan placement slot 15, and finally is discharged into the exhaust gas treatment device for treatment along the fourth air duct 17.

[0037] Furthermore, the control panel 18 is located on the right side of the fume hood 10. The control panel 18 is electrically connected to the exhaust fan 14, the first blower 29, and the second blower 36. The control panel 18 is used to control the opening and closing of the exhaust fan 14, the first blower 29, and the second blower 36.

[0038] Furthermore, the casters 19 are fixedly installed at the bottom of the fume hood 10, which facilitates the movement of the fume hood 10. The casters 19 are equipped with brake fixing devices.

[0039] In use, when the baffle 21 is moved upward, the second bellows 27 is compressed. The baffle 21 drives the connecting plate 24 to move upward through the first bellows 22. The connecting plate 24 drives the end of the connecting rod 25 connected to it to move upward. The connecting rod 25 causes the tilt angle of the connecting plate 24 to change until the first air outlet 23 is tilted downward to a suitable angle. Then, the knob 34 is turned. The knob 34 drives the second air duct 31 to rotate through the second rotating shaft 33 until the second air outlet 32 ​​is adjusted to a suitable angle. Then, the exhaust fan 14, the first blower 29, and the second blower 36 are started through the control panel 18. Outside air is drawn by the first blower 29. 9 enters the first air duct 28, then enters the baffle 21 through the second corrugated pipe 27, then enters the first corrugated pipe 22, and is discharged through the first air outlet 23, forming a downward-sloping air curtain. Outside air also enters the third air duct 35 through the second blower 36, then enters the second air duct 31, and is discharged through the second air outlet 32, forming an upward-sloping air curtain. At the same time, the exhaust fan 14 can draw the air out of the experimental chamber 11, so that the gas in the experimental chamber 11 enters the exhaust fan placement slot 15, and finally is discharged into the waste gas treatment device along the fourth air duct 17 for treatment. Then, the experimenters conduct drug experiments in the experimental chamber 11.

[0040] This invention effectively solves the problem that existing ventilation systems cannot adjust the tilt angle of the air curtain by setting a first air outlet adjustment component and a second air outlet adjustment component inside the fume hood. The first air outlet in the first air outlet adjustment component is linked to a baffle through a connecting plate and a connecting rod. By moving the baffle, the tilt angle of the first air outlet can be adjusted to form a downward-sloping air curtain. Moreover, as the baffle moves upward, the downward tilt angle of the first air outlet gradually increases. In addition, the angle of the second air outlet can be adjusted by rotating a knob to form an upward-sloping air curtain. Therefore, the experimenter can freely adjust the tilt angle of the first and second air outlets according to their own needs, so that the intersection of the air curtains is always in front of the experimental position. This not only allows the experimenter to perform experimental operations in different positions in the experimental chamber, but also better protects the safety of the experimenter.

[0041] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A portable ventilation system for a pharmaceutical laboratory, characterized in that, The system includes a fume hood, a first air outlet regulating component, and a second air outlet regulating component. Both components are movably disposed within the fume hood. The first air outlet regulating component includes a baffle, a first corrugated pipe, a first air outlet, a connecting plate, a connecting rod, a first rotating shaft, a second corrugated pipe, a first air duct, and a first blower. One end of the first corrugated pipe is fixedly connected to the rear end of the baffle, and the other end is fixedly connected to the connecting plate. The first air outlet is located on the connecting plate, and the first corrugated pipe communicates with the first air outlet. One end of the connecting rod is fixedly connected to the side end of the connecting plate, and the other end is fixedly sleeved on the first rotating shaft. One end of the second corrugated pipe is fixedly connected to the upper end of the baffle, and the other end is perpendicularly connected to the first air duct. The end of the first air duct away from the second corrugated pipe is fixedly connected to the first blower. An air duct communicating with the second corrugated pipe and the first corrugated pipe is provided within the baffle. The second air outlet regulating assembly includes a second air duct, a second air outlet, a second rotating shaft, a knob, a third air duct, and a second blower. The second air outlet is located on the second air duct. One end of the second rotating shaft is fixedly connected to one end of the second air duct, and the other end of the second rotating shaft is fixedly connected to the knob. One end of the third air duct is movably sleeved inside the end of the second air duct away from the second rotating shaft. The second air duct and the third air duct are in communication. The other end of the third air duct is fixedly connected to the second blower.

2. The portable ventilation equipment for a pharmaceutical laboratory as described in claim 1, characterized in that, The fume hood is provided with an experimental chamber, a baffle placement chamber and a sliding groove. The baffle placement chamber is located above the front side of the experimental chamber. The baffle and the second corrugated pipe are both movably disposed in the baffle placement chamber. The first air duct is disposed in the upper side wall of the baffle placement chamber.

3. The active ventilation equipment for a pharmaceutical laboratory as described in claim 2, characterized in that, The sliding groove is located on the left side wall of the experimental chamber. The end of the first rotating shaft away from the connecting rod is movably disposed in the sliding groove. The first corrugated pipe, the first air outlet, the connecting plate, and the connecting rod are all movably disposed in the experimental chamber.

4. The active ventilation equipment for a pharmaceutical laboratory as described in claim 2, characterized in that, The second air duct and the second air outlet are both movably disposed within the experimental chamber, the second rotating shaft is movably disposed within the right side wall of the experimental chamber, and the third air duct is disposed within the left side wall of the experimental chamber.

5. The portable ventilation equipment for a pharmaceutical laboratory as described in claim 4, characterized in that, Both the first blower and the second blower are fixedly installed on the left side of the fume hood.

6. The active ventilation equipment for a pharmaceutical laboratory as described in claim 2, characterized in that, The fume hood is also equipped with an exhaust fan, an exhaust fan placement slot, a fourth air duct, a control panel, and casters. The exhaust fan placement slot is located at the rear end of the experimental chamber, and the exhaust fan is fixedly installed in the exhaust fan placement slot.

7. The portable ventilation system for a pharmaceutical laboratory as described in claim 6, characterized in that, The fourth air duct is located at the rear end of the fume hood, and the fourth air duct is connected to the experimental chamber through the exhaust fan placement slot.

8. The active ventilation equipment for a pharmaceutical laboratory as described in claim 7, characterized in that, The control panel is located on the right side of the fume hood, and is electrically connected to the exhaust fan, the first blower, and the second blower.

9. The portable ventilation equipment for a pharmaceutical laboratory as described in claim 8, characterized in that, The casters are fixedly installed at the bottom of the fume hood.

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