Biosafety cabinet with exhaust device

Abstract

The utility model discloses a biosafety cabinet with an exhaust device, which relates to the technical field of biosafety cabinets, and comprises a biosafety cabinet body, an adjusting component is arranged on one side of the biosafety cabinet body close to an exhaust component, the adjusting component comprises a support plate, an eccentric shaft is arranged at the bottom of the support plate, and the exhaust device is arranged on the eccentric shaft. A connecting shaft is fixed to the eccentric shaft, an arc-shaped rod is connected to the side, away from the eccentric shaft, of the connecting shaft, a fixing ring is arranged on the side, away from the connecting shaft, of the arc-shaped rod, a second clamping base is arranged on the biological safety cabinet body, and a sliding rail is arranged on the biological safety cabinet body and inserted into the second clamping base and the fixing ring. A baffle is slidably connected into the sliding rail, a lantern ring is fixed to the top of the baffle, the bottom of the arc-shaped rod is fixed into the lantern ring, the adjusting assembly is arranged, different experiments may need bolts, different airflow speeds and directions are achieved, and the adjustable exhaust outlet provides higher flexibility and adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of biological safety cabinets, in particular to a biological safety cabinet with an exhaust device. Background Art

[0002] A biological safety cabinet with exhaust is a laboratory equipment used to handle biological materials and pathogens, designed to protect operators, experimental samples and the environment from contamination and danger. This type of biological safety cabinet is usually called a BSC (Biological Safety Cabinet) or a biological safety cabinet.

[0003] The existing Chinese patent (Announcement No.: CN217288443U) proposes an exhaust device for a biological safety cabinet, which relates to the technical field of biological safety cabinets, including a fixed plate, the front surface of which is movably penetrated by bolts, and the front surface of which is fixedly connected to an exhaust pipe. The utility model uses bolts to fix the fixed plate to the outer surface of the safety cabinet, so that the fixed plate and the safety cabinet are easy to operate and install. The card block is pressed to shrink toward the inside of the fixed frame, and the fixed frame is inserted into the bottom of the frame to allow the filter to enter the inside of the frame until the fixed frame is completely retracted into the inside of the frame. The card block is moved out from the inside of the fixed frame and penetrates the frame with the help of the force of the spring shape recovery, the device is powered on and the fan is started, and the safety cabinet is exhausted when the fan is running.

[0004] The above device is equipped with a detachable filter to improve the efficiency of the filter for filtration and purification, and improve the environmental protection measures of the safety cabinet using the device, but the size of the exhaust port cannot be adjusted, and the air flow of the biological safety cabinet will be fixed. It is impossible to flexibly respond to the leakage of harmful gases or particulate matter that may occur in the experiment, which increases the safety risks of experimental operations. Therefore, we propose a biological safety cabinet with an exhaust device. Utility Model Content

[0005] The purpose of the utility model is to provide a biological safety cabinet with an exhaust device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biological safety cabinet with an exhaust device, comprising a biological safety cabinet body, a circular groove is opened on the inner wall of one side of the biological safety cabinet body, an exhaust component is arranged in the circular groove, an adjustment component is arranged on the side of the biological safety cabinet body close to the exhaust component, the adjustment component comprises a support plate, an eccentric shaft is arranged at the bottom of the support plate, a connecting shaft is fixed on the eccentric shaft, an arc rod is connected to the side of the connecting shaft away from the eccentric shaft, a fixing ring is arranged on the side of the arc rod away from the connecting shaft, a second holder is arranged on the biological safety cabinet body, a second pin is inserted in the second holder and the fixing ring, a spring is sleeved on the second pin, a slide rail is arranged on the biological safety cabinet body, a baffle is slidably connected in the slide rail, a collar is fixed on the top of the baffle, and the bottom of the arc rod is fixed in the collar.

[0007] As a preferred embodiment, an air inlet duct is arranged on the top of the biosafety cabinet body, and the exhaust assembly includes a fan, which is arranged in a circular groove, and a filter is arranged on one side of the circular groove close to the fan.

[0008] The above technical solution is adopted: by setting an exhaust component, air is sucked from the working area and discharged after being processed by a filter, so as to ensure the cleanliness and safety of the indoor air.

[0009] As a preferred embodiment, first clamping seats are fixed on both sides of the circular groove close to the filter screen, a buckle is clamped on one side of the first clamping seat close to the circular groove, and a side of the buckle away from the first clamping seat is connected to the filter screen.

[0010] By adopting the above technical solution, the filter can be disassembled and replaced by providing the first holder and the buckle, so as to prevent excessive dust on the filter and affect the exhaust.

[0011] As a preferred embodiment, a slot is provided on an inner wall of the biological safety cabinet body at one side away from the exhaust assembly, a filter assembly is arranged in the slot, the filter assembly includes a filter, and the filter is connected to the slot.

[0012] The above technical solution: By setting up the filter components, the particulate matter, bacteria, viruses and other pollutants in the air can be effectively removed. They can filter the tiny particles in the air, provide a clean experimental environment, prevent the experimental samples from being contaminated and protect the health of the operator.

[0013] As a preferred embodiment, a fixing seat is provided on one side of the inner wall of the biosafety cabinet body close to the filter, and two fixing seats are provided. A first latch is inserted into both fixing seats, and the first latch is in contact with the filter.

[0014] By adopting the above technical solution: by providing a fixing seat and a latch, the filter can be disassembled and replaced for regular cleaning or replacement to ensure air quality and operating environment.

[0015] As a preferred implementation, a control panel is disposed on the biosafety cabinet body, and supporting legs are disposed at the bottom of the biosafety cabinet body, and footboards are fixedly connected to the supporting legs.

[0016] Adopting the above technical solution: by providing a footboard, it is convenient for workers to place their feet.

[0017] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0018] 1. In the present invention, by setting an adjustment component, the exhaust port can be adjusted according to the experimental requirements and sample type to achieve the best air flow and purification effect. Different experiments may require different air flow speeds and directions. The adjustable exhaust port provides greater flexibility and adaptability, solving the problem that the size of the exhaust port cannot be adjusted in the above-mentioned device. By setting an exhaust component, air is sucked from the working area and discharged after being processed by the filter to ensure the cleanliness and safety of the indoor air. By setting a filter component, particulate matter, bacteria, viruses and other pollutants in the air can be effectively removed. They can filter tiny particles in the air, provide a clean experimental environment, prevent experimental samples from being contaminated and protect the health of operators.

[0019] 2. In the utility model, by providing a first holder and a buckle, the filter can be disassembled and replaced to prevent excessive dust on the filter and affect exhaust. By providing a fixed seat and a first latch, the filter can be disassembled and replaced for regular cleaning or replacement to ensure air quality and operating environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the structure of a biological safety cabinet with an exhaust device.

[0021] Figure 2 The present invention is a structural diagram of a regulating component in a biological safety cabinet with an exhaust device.

[0022] Figure 3 The present invention is a structural diagram of an exhaust component in a biological safety cabinet having an exhaust device.

[0023] Figure 4 The present invention is a structural diagram of a filter component in a biological safety cabinet with an exhaust device.

[0024] Figure 5 This is a disassembled diagram of the adjustment components in a biological safety cabinet with an exhaust device.

[0025] Numbers in the figure: 1. Biosafety cabinet body; 2. Support legs; 3. Air inlet duct; 4. Exhaust assembly; 41. Fan; 42. Filter; 43. First holder; 44. Buckle; 5. Adjustment assembly; 51. Support plate; 52. Eccentric shaft; 53. Connecting shaft; 54. Arc rod; 55. Baffle; 56. Slide rail; 57. Ring; 58. Second holder; 59. Fixed ring; 6. Control panel; 7. Footboard; 8. Filter assembly; 81. Filter; 82. Fixed seat; 83. First latch; 9. Circular groove; 10. Limit plate; 11. Slot; 12. Second latch; 13. Spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] like Figure 1-Figure 5 As shown, a biosafety cabinet with an exhaust device includes a biosafety cabinet body 1, a circular groove 9 is opened on the inner wall of one side of the biosafety cabinet body 1, an exhaust component 4 is arranged in the circular groove 9, an adjustment component 5 is arranged on the side of the biosafety cabinet body 1 close to the exhaust component 4, and the adjustment component 5 includes a support plate 51, an eccentric shaft 52 is arranged at the bottom of the support plate 51, a connecting shaft 53 is fixed on the eccentric shaft 52, a side of the connecting shaft 53 away from the eccentric shaft 52 is connected to an arc rod 54, and a side of the arc rod 54 away from the connecting shaft 53 is arranged There is a fixing ring 59, a second card seat 58 is arranged on the biological safety cabinet body 1, a second latch 12 is inserted in the second card seat 58 and the fixing ring 59, a spring 13 is sleeved on the second latch 12, a slide rail 56 is arranged on the biological safety cabinet body 1, a baffle 55 is slidably connected in the slide rail 56, a collar 57 is fixed on the top of the baffle 55, and the bottom of the arc rod 54 is fixed in the collar 57. By setting the adjustment component 5, different experiments may require latches, different air flow speeds and directions, and the adjustable exhaust port provides greater flexibility and adaptability;

[0029] The top of the biosafety cabinet body 1 is provided with an air inlet pipe 3, and the exhaust assembly 4 includes a fan 41, which is arranged in a circular groove 9, and a filter 42 is arranged on one side of the circular groove 9 close to the fan 41. By arranging the exhaust assembly 4, air is sucked from the working area and discharged after being processed by the filter 81, so as to ensure the cleanliness and safety of the indoor air;

[0030] A fixing seat 82 is provided on one side of the inner wall of the biosafety cabinet body 1 near the filter 81. Two fixing seats 82 are provided. A first latch 83 is inserted on each of the two fixing seats 82. The first latch 83 contacts the filter 81. By providing the filter assembly 8, particulate matter, bacteria, viruses and other pollutants in the air can be effectively removed. They can filter tiny particles in the air, provide a clean experimental environment, prevent experimental samples from being contaminated and protect the health of operators.

[0031] Embodiment 2

[0032] like Figure 1-Figure 5 A first clamping seat 43 is fixed on both sides of the circular groove 9 near the filter 42. A buckle 44 is clamped on one side of the first clamping seat 43 near the circular groove 9. The side of the buckle 44 away from the first clamping seat 43 is connected to the filter 42. By setting the first clamping seat 43 and the buckle 44, the filter 42 can be disassembled and replaced to prevent excessive dust on the filter 42 from affecting exhaust.

[0033] A slot 11 is provided on the inner wall of the biological safety cabinet body 1 on one side away from the exhaust assembly 4. A filter assembly 8 is provided in the slot 11. The filter assembly 8 includes a filter 81. The filter 81 is engaged in the slot 11.

[0034] A fixing seat 82 is provided on one side of the inner wall of the biosafety cabinet body 1 close to the filter 81. Two fixing seats 82 are provided. A first latch 83 is inserted into each of the two fixing seats 82. The first latch 83 contacts the filter 81. By providing the fixing seat 82 and the first latch 83, the filter 81 can be disassembled and replaced for regular cleaning or replacement to ensure air quality and operating environment.

[0035] The biosafety cabinet body 1 is provided with a control panel 6, and the bottom of the biosafety cabinet body 1 is provided with a support leg 2, and a footrest 7 is fixedly connected to the support leg 2. The footrest 7 can be provided to facilitate the staff to place their feet.

[0036] Working principle: Figure 1-Figure 5As shown, the external air enters the interior of the safety cabinet from the air inlet pipe 3, and can filter the tiny particles in the air after being processed by the filter 81, providing a clean experimental environment, preventing the experimental samples from being contaminated and protecting the health of the operator. By setting the exhaust assembly 4, the air is sucked from the working area and discharged after being processed by the filter 81 to ensure the cleanliness and safety of the indoor air. The filter 42 can prevent dust from entering the interior of the safety cabinet. The filter 42 can be disassembled by the first clamping seat 43 and the buckle 44 to prevent excessive dust accumulation on the filter 42 and affect the exhaust effect. The baffle 55 can be moved by the eccentric shaft 52 and the arc rod 54 to adjust the size of the exhaust port to achieve the best air flow and purification effect. Different experiments may require different air flow speeds and directions. The adjustable exhaust port provides greater flexibility and adaptability. By setting the fixing seat 82 and the first latch 83, the filter 81 can be disassembled and replaced for regular cleaning or replacement to ensure air quality and operating environment.

[0037] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A biological safety cabinet with an exhaust device, comprising a biological safety cabinet body (1), characterized in that: A circular groove (9) is provided on the inner wall of one side of the biological safety cabinet body (1), an exhaust assembly (4) is arranged in the circular groove (9), an adjustment assembly (5) is arranged on the side of the biological safety cabinet body (1) close to the exhaust assembly (4), the adjustment assembly (5) comprises a support plate (51), an eccentric shaft (52) is arranged at the bottom of the support plate (51), a connecting shaft (53) is fixed on the eccentric shaft (52), a side of the connecting shaft (53) away from the eccentric shaft (52) is connected to an arc rod (54), the arc rod (54) A fixing ring (59) is arranged on the side away from the connecting shaft (53), a second clamping seat (58) is arranged on the biological safety cabinet body (1), a second latch (12) is inserted in the second clamping seat (58) and the fixing ring (59), a spring (13) is sleeved on the second latch (12), a slide rail (56) is arranged on the biological safety cabinet body (1), a baffle (55) is slidably connected in the slide rail (56), a collar (57) is fixed on the top of the baffle (55), and the bottom of the arc rod (54) is fixed in the collar (57).

2. A biological safety cabinet with an exhaust device according to claim 1, characterized in that: An air inlet pipe (3) is arranged on the top of the biological safety cabinet body (1); the exhaust assembly (4) comprises a fan (41); the fan (41) is arranged in a circular groove (9); and a filter screen (42) is arranged on one side of the circular groove (9) close to the fan (41).

3. A biological safety cabinet with an exhaust device according to claim 2, characterized in that: A first clamping seat (43) is fixed on both sides of the circular groove (9) close to the filter screen (42); a buckle (44) is clamped on the side of the first clamping seat (43) close to the circular groove (9); and a side of the buckle (44) away from the first clamping seat (43) is connected to the filter screen (42).

4. A biological safety cabinet with an exhaust device according to claim 1, characterized in that: A slot (11) is provided on an inner wall of a side of the biological safety cabinet body (1) away from the exhaust assembly (4), and a filter assembly (8) is arranged in the slot (11). The filter assembly (8) includes a filter (81), and the filter (81) is snap-connected in the slot (11).

5. A biological safety cabinet with an exhaust device according to claim 4, characterized in that: A fixing seat (82) is provided on one side of the inner wall of the biological safety cabinet body (1) close to the filter (81), and two fixing seats (82) are provided. A first latch (83) is inserted into each of the two fixing seats (82), and the first latch (83) contacts the filter (81).

6. A biological safety cabinet with an exhaust device according to claim 1, characterized in that: The biological safety cabinet body (1) is provided with a control panel (6), the bottom of the biological safety cabinet body (1) is provided with a supporting leg (2), and a footboard (7) is fixedly connected to the supporting leg (2).

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