Biological safety cabinet quality detector

Abstract

The utility model discloses a biological safety cabinet quality detector belongs to biological safety cabinet technical field, is aimed at the weak structural stability and the low operation integration of existing technology, including interference cylinder, atomizer, collector, host computer and shallow, the interference cylinder includes the plug, level, level fixed pipe, connecting pipe, second section inner connecting pipe, support fixed pipe and support plate, the utility model shallow through quick folding support rod and rear fixed support fast pressure knob support plate, realize perpendicular direction double -fixed, avoid the detection process shallow shake, and the slider of collector support and movable slide rail sliding fit can accurate regulation collection height, and fixed and rotary support plate can rotate after movable slide rail fixed, and through press lock catch can fast switching fixed and rotation state, ensure that the collector is stable in the position, angle accurate when detecting, reduce the detection error caused by the part position deviation.

Description

Technical Field

[0001] This utility model belongs to the field of biosafety cabinet technology, specifically relating to a biosafety cabinet quality testing instrument. Background Technology

[0002] As a negative pressure filtration and exhaust device, the biosafety cabinet, based on the principles of high-efficiency filtration and airflow dynamics, can simultaneously achieve dual protection against sample contamination and operator infection by pathogenic microorganisms. Its performance reliability is directly related to the success or failure of experiments and personnel safety. Currently, the quality testing of biosafety cabinets needs to be completed through multiple index tests. Among them, the inflow airflow velocity test and the downflow airflow velocity test use the anemometer method, the high-efficiency filter leak test uses the counting method, and the personnel, product and cross-contamination protection test uses the potassium iodide method.

[0003] The existing technology includes a portable biosafety cabinet quality testing instrument with patent publication number CN215064629U. This patent includes a housing for a first biosafety cabinet quality testing component and a second housing for a second biosafety cabinet quality testing component. The first biosafety cabinet quality testing component includes four sampling ports, an interference cylinder, a pump, five hoses, and an atomizer. The second biosafety cabinet quality testing component includes a power supply and a main unit. The portable biosafety cabinet quality testing instrument also includes a folding bracket and a support frame. This device effectively avoids the shortcomings of existing technologies where biosafety cabinet testing often involves numerous irregularly shaped components, requiring transport in a single box, leading to inconvenience. It is convenient for transportation and installation. However, in practical use, it still has the following shortcomings: Practically speaking, this device relies solely on a single bracket for diagonal bracing, lacking a double-fixing design, making it prone to wobbling. Component adjustment relies on gears, racks, and screws, resulting in cumbersome operation. Furthermore, it lacks angle adjustment, horizontal monitoring, and length extension functions, leading to poor adaptability.

[0004] Therefore, a biosafety cabinet quality testing instrument is needed to solve the problems of weak structural stability and low operational integration in existing technologies. Utility Model Content

[0005] The purpose of this invention is to provide a biosafety cabinet quality testing instrument to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a biosafety cabinet quality testing instrument, comprising an interference cylinder, an atomizer, a collector, a main unit, and a trolley. The interference cylinder includes a plug, a level, a level fixing tube, a connecting tube, a second inner connecting tube, a support fixing tube, and a support plate. The connecting tube, the second inner connecting tube, and the support fixing tube are connected by a pull rope to achieve a telescopic function. The connecting tube and the second inner connecting tube are connected by a thread to adjust the total length.

[0007] The atomizer includes a shell, a pipeline support plate, a connecting support plate, a protective cover, a leakage connector, a motor, and a signal connection port. The signal connection port is connected to the main unit to achieve speed control, and the leakage connector is connected to the main unit to achieve dripping.

[0008] The collector includes a rotating support plate, a cross clamp, a T-shaped connecting tube, a press-lock, a lock fixing plate, a fixed and rotating support plate, a sliding rail, a slider, an atomizer and collector support accessories, a collector support rod, and an interference round tube support block. The slider slides in conjunction with the sliding rail to adjust the height of the collection port. The fixed and rotating support plate can rotate after being fixed to the sliding rail. The fixed and rotating support plate switches between fixed and rotating states through the press-lock and the lock fixing plate.

[0009] The host includes a liquid outlet, a liquid inlet, a data acquisition interface, a culture storage area, an nebulizer signal port, a power supply, a display, and a power switch. The data acquisition interface is connected to the data acquisition device. The host has a built-in fan flow regulation module. The display is used to display the detection data.

[0010] The trolley includes a rear fixed bracket quick-press knob support plate, a power controller, a data collector bracket, a main unit support plate folding bracket, a battery, and a quick-folding support rod. The battery is fixed at the top and bottom by stainless steel parts, and a silicone pad is provided on the top of the battery. The power controller has 24V, 12V and 5V power supply interfaces, and the 5V power supply interface is electrically connected to the main unit.

[0011] It should be noted in the plan that the level is installed inside the level fixing tube of the interference cylinder.

[0012] It is worth noting that the protective cover of the atomizer covers the outside of the motor.

[0013] It should be further noted that the culture storage area of ​​the host is a built-in groove structure.

[0014] In a preferred embodiment, the main support plate folding bracket is foldable.

[0015] In a preferred embodiment, the trolley's quick-folding support rod cooperates with the quick-press knob support plate of the rear fixed bracket to achieve dual vertical fixation.

[0016] In one preferred embodiment, the rotating support plate is adjustable to different angles.

[0017] Compared with the prior art, the biosafety cabinet quality inspection instrument provided by this utility model has at least the following beneficial effects:

[0018] (1) The trolley is double-fixed in the vertical direction by a quick-folding support rod and a quick-press knob support plate of the rear fixed bracket, which avoids the trolley shaking during the test. The slider of the collector bracket and the sliding rail can be precisely adjusted to adjust the height of the collection port. The fixed and rotating support plate can be rotated after being fixed to the sliding rail. The fixed and rotating states can be quickly switched by pressing the lock, ensuring that the collector is stable in position and accurate in angle during the test, reducing the test error caused by the position deviation of the components. The interference cylinder is equipped with a level, which can monitor and ensure its own horizontal status in real time. At the same time, the connecting pipe, the second section inner connecting pipe and the support fixing pipe can be extended and retracted by the pull rope. The connecting pipe and the second section inner connecting pipe are connected by threads to adjust the total length, which can adapt to the needs of different test scenarios, further ensuring that the position of the components meets the standards during the test and ensuring stable and reliable data.

[0019] (2) The main unit support plate of the trolley is a folding bracket, which is convenient for the main unit to be placed and stored. The whole collector bracket is fixed in the aluminum alloy tube by cross clamp and T-shaped connecting tube, which is simple to disassemble and assemble. The trolley is foldable, and the battery is fixed with stainless steel parts at the top and bottom. A silicone soft pad is provided on the top to place the equipment box, which facilitates the overall transportation and storage of the equipment and reduces the time for preparation and storage. The power controller of the trolley provides 24V, 12V and 5V power supply interfaces. The main unit can be directly connected to a 24V DC power supply for power-on testing without the need for an additional power adapter. The nebulizer is connected to the main unit through the signal connection port. The main unit can read and control the speed of the nebulizer. The leakage connector is connected to the main unit to realize the dripping. The main unit also has a built-in fan flow adjustment module. After the collector is connected to the main unit's acquisition interface, the detection data is directly displayed on the main unit's display screen, eliminating the need to operate multiple devices separately, simplifying the operation process and improving the detection efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the interference cylinder of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the atomizer of this utility model;

[0023] Figure 4 This is a schematic diagram of the data collector of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the host computer of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the trolley of this utility model.

[0026] In the diagram: 1. Interference cylinder; 101. Plug; 102. Level; 103. Level fixing tube; 104. Connecting tube; 105. Second section inner connecting tube; 106. Support fixing tube; 107. Support plate; 2. Atomizer; 201. Outer shell; 202. Pipeline support plate; 203. Link support plate; 204. Protective cover; 205. Leakage connection piece; 206. Motor; 207. Signal connection port; 3. Collector; 301. Rotating support plate; 302. Cross clamp; 303. T-shaped connecting tube; 304. Press lock; 305. Lock fixing plate; 306. Fixing and rotating support plate; 307. Moving slide rail; 308. Slider; 309. Nebulizer and collector support accessories; 310. Collector support rod; 311. Composition of interference round support block; 4. Main unit; 401. Liquid outlet; 402. Liquid inlet; 403. Collection interface; 404. Culture storage area; 405. Nebulizer signal port; 406. Power supply; 407. Display; 408. Power switch; 5. Trolley; 501. Rear fixed bracket quick-press knob support plate; 502. Power controller; 503. Collector bracket; 504. Main unit support plate folding bracket; 505. Battery; 506. Quick-folding support rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Please see Figure 1-6 This utility model provides a biosafety cabinet quality testing instrument, including an interference cylinder 1, an atomizer 2, a collector 3, a main unit 4, and a trolley 5. The interference cylinder 1 includes a plug 101, a level 102, a level fixing tube 103, a connecting tube 104, a second-section inner connecting tube 105, a support fixing tube 106, and a support plate 107. The connecting tube 104, the second-section inner connecting tube 105, and the support fixing tube 106 are connected by a pull rope to achieve a telescopic function. The connecting tube 104 and the second-section inner connecting tube 105 are connected by a thread to adjust the total length.

[0029] The atomizer 2 includes a housing 201, a tubing support plate 202, a connecting support plate 203, a protective cover 204, a leaking connector 205, a motor 206, and a signal connection port 207. The signal connection port 207 is connected to the main unit 4 to achieve speed control, and the leaking connector 205 is connected to the main unit 4 to achieve dripping.

[0030] The collector 3 includes a rotating support plate 301, a cross clamp 302, a T-shaped connecting tube 303, a press-lock buckle 304, a buckle fixing plate 305, a fixed and rotating support plate 306, a movable slide rail 307, a slider 308, an atomizer and collector support accessories 309, a collector support rod 310, and an interference round support block 311. The slider 308 slides with the movable slide rail 307 to adjust the height of the collection port. The fixed and rotating support plate 306 can rotate after being fixed with the movable slide rail 307. The fixed and rotating support plate 306 can switch between fixed and rotating by pressing the buckle 304 and the buckle fixing plate 305.

[0031] The main unit 4 includes a liquid outlet 401, a liquid inlet 402, a data acquisition interface 403, a culture storage area 404, an nebulizer signal port 405, a power supply 406, a display 407, and a power switch 408. The data acquisition interface 403 is connected to the data acquisition device 3. The main unit 4 has a built-in fan flow regulation module, and the display 407 is used to display the detection data.

[0032] The trolley 5 includes a rear fixed bracket quick-press knob support plate 501, a power controller 502, a data collector bracket 503, a main unit support plate folding bracket 504, a battery 505, and a quick-folding support rod 506. The battery 505 is fixed at the top and bottom by stainless steel parts, and a silicone pad is provided on the top of the battery 505. The power controller 502 has 24V, 12V and 5V power supply interfaces, and the 24V power supply interface is electrically connected to the main unit 4.

[0033] Further as Figure 2 As shown, it is worth noting that a level 102 is installed inside the level fixing tube 103 of the interference cylinder 1. The level 102 is stably installed on the interference cylinder 1 through the level fixing tube 103, which can monitor the overall horizontal status of the interference cylinder 1 in real time and promptly detect whether the interference cylinder 1 is tilted. Based on the feedback from the level 102, the operator can quickly adjust the interference cylinder 1 to a horizontal position, avoiding the deviation of its relative position with the biosafety cabinet detection area from the standard due to the tilt of the interference cylinder 1. This ensures that the interference cylinder 1 is accurately positioned at the required horizontal reference position for detection, laying the foundation for the smooth implementation of detection items such as inflow airflow velocity and filter leak detection.

[0034] Further as Figure 3 As shown, it is worth noting that the protective cover 204 of the atomizer 2 covers the outside of the motor 206. The protective cover 204 covers the outside of the motor 206, which can effectively prevent dust, droplets, liquids and other impurities that may be generated during the detection process from contacting the motor 206. This prevents impurities from entering the motor 206 and causing component wear, short circuits or malfunctions, thereby ensuring the stable operation of the motor 206 and extending the overall service life of the atomizer 2.

[0035] Further as Figure 5As shown, it is worth noting that the culture storage area 404 of the main unit 4 has a built-in groove structure. The built-in groove structure can physically limit the culture stored therein, preventing the culture from sliding or tipping over when the main unit 4 moves slightly or is bumped by the outside during the detection process. This effectively prevents the culture from spilling, contaminating or being damaged, ensuring the integrity and safety of the test sample, and providing a reliable sample basis for subsequent detection steps. The built-in design integrates the culture storage area 404 with the main unit 4, eliminating the need for an additional independent culture storage device and saving space at the detection site.

[0036] Further as Figure 6 As shown, it is worth noting that the main support plate folding bracket 504 is foldable. When not in use or during transportation, it can be folded up, which greatly reduces the overall space occupied by the trolley 5. This makes it convenient to store the equipment in limited spaces such as laboratory corners and storage rooms, and also facilitates overall transportation in conjunction with other parts of the trolley 5, reducing space costs and handling difficulties during transportation.

[0037] Further as Figure 6 As shown, it is worth noting that the quick-folding support rod 506 of the trolley 5 cooperates with the quick-press knob support plate 501 of the rear fixed bracket to achieve double fixation in the vertical direction. The two work together to form double fixation in the vertical direction, which can effectively offset the shaking of the trolley 5 caused by equipment operation or slight collisions during the testing process, and prevent the displacement of the trolley 5 and the core components such as the host 4 and the data collector 3 installed on it. This provides a stable equipment operating environment for testing items such as airflow velocity testing and filter leak detection, reduces the testing error caused by equipment shaking, and ensures data accuracy.

[0038] Further as Figure 4 As shown, it is worth noting that the rotating support plate 301 can be adjusted to different angles. Biosafety cabinet testing requires adjusting the detection angle of the collector 3 according to different models and specifications of biosafety cabinets. The rotating support plate 301 can be adjusted to different angles, which can drive the collector 3 to flexibly adapt to different detection areas of the biosafety cabinet without the need to replace the support components. This expands the applicability of this biosafety cabinet quality testing instrument and improves the equipment's versatility.

[0039] The solution has the following working process: In actual use, first unfold the quick-folding support rod 506 of the trolley 5, and complete the vertical double fixation by the knob of the quick-press knob support plate 501 of the rear fixed bracket to ensure the stability of the trolley 5. Then unfold the main support plate folding bracket 504, place the main unit 4 on it and connect it to the 24V power supply interface of the power controller 502 of the trolley 5. Press the power switch 408 of the main unit 4 to turn on. Then, install the collector 3 on the collector bracket 503 of the trolley 5. Adjust the height of the collection port by the slider 308 and the moving slide rail 307 of the collector 3. Adjust the angle of the collector 3 by fixing and rotating the support plate 306 and pressing the lock 304. At the same time, connect the interference cylinder 1 to the interference cylinder support block 311 of the collector bracket 3 through the plug 101. Refer to the level 102 in the level fixing tube 103 of the interference cylinder 1 to adjust the interference cylinder 1 to a horizontal state. Adjust its total length by the threaded engagement of the connecting tube 104 and the second section inner connecting tube 105.

[0040] Connect the data collector 3 to the data acquisition interface 403 of the host 4, connect the signal connection port 207 of the atomizer 2 to the atomizer signal port 405 of the host 4, and connect the leakage connector 205 of the atomizer 2 to the liquid inlet 402 of the host 4 to ensure that the signal and liquid passages of each component are unobstructed. Set the detection parameters through the display 407 of the host 4, and the built-in fan flow adjustment module of the host 4 automatically adjusts the airflow of the data collector 3.

[0041] After the detection is started, the host 4 controls the speed of the motor 206 of the nebulizer 2 through the nebulizer signal port 405. The atomized gas generated by the nebulizer 2 is transported to the detection area through the pipeline. The interference cylinder 1 assists in simulating the detection environment. The collector 3 collects the airflow, particles and other detection samples in the biosafety cabinet and transmits them to the host 4 through the collection interface 403. The host 4 processes the data and displays it in real time on the display 407. If it is necessary to temporarily store the culture during the detection process, it can be placed in the culture storage area 404 of the host 4. The waste liquid generated during the detection is discharged through the liquid outlet 401 of the host 4.

[0042] After the test is completed, disconnect all components, turn off the power switch 408 of the main unit 4, fold the adjustment structure of the collector 3 and the interference cylinder 1, loosen the knob of the quick-press knob support plate 501 of the fixed bracket, fold the quick-foldable support rod 506 of the folding cart 5 and the folding bracket 504 of the main unit support plate, arrange all components and place them on the silicone pad above the battery 505 of the cart 5 to complete the storage.

[0043] In summary: the quick-folding support rod 506 of the trolley 5 works in conjunction with the quick-press knob support plate 501 of the rear fixed bracket to achieve double vertical fixation, preventing the trolley 5 and the components above it from shaking during testing; the level 102 installed inside the level fixing tube 103 of the interference cylinder 1 can monitor and adjust the horizontal state of the interference cylinder 1 in real time to prevent it from tilting and causing testing deviation; the rotating support plate 301 of the data collector 3 can be adjusted to different angles, enabling the data collector 3 to accurately align with the testing area. All three work together to reduce the impact of equipment displacement and angular deviation on the testing, ensuring data reliability; the slider 308 of the data collector 3 slides in conjunction with the moving slide rail 307 to adjust the height of the acquisition port; the fixed and rotating support plate 306 can quickly switch between fixed and rotating states by pressing the latch 304; the connecting tube 104 of the interference cylinder 1 and the second section... The internal connecting tube 105 is threaded and its total length is adjustable to adapt to the testing needs of different biosafety cabinets. The main unit support plate folding bracket 504 of the trolley 5 is foldable, saving space when not in use, and stably supporting the main unit 4 when unfolded. The power controller 502 provides 24V, 12V, and 5V interfaces, and the main unit 4 can be directly connected to a 24V power supply to turn on, simplifying the operation process. The protective cover 204 of the nebulizer 2 covers the outside of the motor 206, preventing dust and leakage from contacting the motor 206 and extending the service life of the nebulizer 2. The culture storage area 404 of the main unit 4 has a built-in groove structure, which can limit and fix the culture to prevent it from tipping over and causing contamination, and does not require an additional storage device, optimizing the space utilization of the main unit 4. At the same time, the main unit 4 can control the rotation speed of the nebulizer 2 through the nebulizer signal port 405, integrating control functions and improving testing efficiency.

[0044] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

Claims

1. A biosafety cabinet quality detector, comprising an interference cylinder (1), an atomizer (2), a collector (3), a main machine (4) and a trolley (5), characterized in that: The interference cylinder (1) includes a plug (101), a level (102), a level fixing tube (103), a connecting tube (104), a second-section inner connecting tube (105), a support fixing tube (106), and a support plate (107). The connecting tube (104), the second-section inner connecting tube (105), and the support fixing tube (106) are connected by a pull rope to achieve a telescopic function. The connecting tube (104) and the second-section inner connecting tube (105) are connected by a thread to adjust the total length. The atomizer (2) includes a shell (201), a pipeline support plate (202), a connecting support plate (203), a protective cover (204), a leakage connector (205), a motor (206), and a signal connection port (207). The signal connection port (207) is connected to the host (4) to achieve speed control, and the leakage connector (205) is connected to the host (4) to achieve dripping. The collector (3) includes a rotating support plate (301), a cross clamp (302), a T-shaped connecting tube (303), a press-lock (304), a lock fixing plate (305), a fixed and rotating support plate (306), a moving slide rail (307), a slider (308), an atomizer and collector support accessories (309), a collector support rod (310), and an interference round support block (311). The slider (308) slides with the moving slide rail (307) to adjust the height of the collection port. The fixed and rotating support plate (306) can rotate after being fixed with the moving slide rail (307). The fixed and rotating support plate (306) can switch between fixed and rotating by pressing the lock (304) and the lock fixing plate (305). The host (4) includes a liquid outlet (401), a liquid inlet (402), a data acquisition interface (403), a culture storage area (404), an atomizer signal port (405), a power supply (406), a display (407), and a power switch (408). The data acquisition interface (403) is connected to the data acquisition device (3). The host (4) has a built-in fan flow regulation module. The display (407) is used to display the detection data. The trolley (5) includes a rear fixed bracket quick-press knob support plate (501), a power controller (502), a collector bracket (503), a host support plate folding bracket (504), a battery (505), and a quick-folding support rod (506). The battery (505) is fixed at the top and bottom by stainless steel parts, and a silicone pad is provided on the top of the battery (505). The power controller (502) is provided with 24V, 12V and 5V power supply interfaces. The 24V power supply interface is electrically connected to the host (4).

2. The biological safety cabinet quality detector according to claim 1, wherein: A level (102) is installed inside the level fixing tube (103) of the interference cylinder (1).

3. The biological safety cabinet quality detector of claim 1, wherein: The protective cover (204) of the atomizer (2) covers the outside of the motor (206).

4. The biological safety cabinet quality detector of claim 1, wherein: The culture storage area (404) of the host (4) is a built-in groove structure.

5. The biosafety cabinet quality testing instrument according to claim 1, characterized in that: The main support plate folding bracket (504) is foldable.

6. The biological safety cabinet quality detector of claim 1, wherein: The quick foldable supporting rod (506) of the trolley (5) is matched with the rear fixed support fast-pressing knob supporting plate (501), so that double fixing in the vertical direction is realized.

7. The biological safety cabinet quality detector of claim 1, wherein: The rotating supporting plate (301) can be adjusted at different angles.

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