Biosafety cabinet convenient to observe

Abstract

The utility model discloses a biosafety cabinet convenient to observe, which relates to the technical field of biosafety cabinets and comprises a cabinet body, an exhaust pipe and an air filter are mounted on the cabinet body, activated carbon particles, desiccant particles and a filter screen are mounted in the exhaust pipe, a detection box is arranged on one side of the exhaust pipe, and the air filter is arranged on the other side of the exhaust pipe. A plurality of fixed pipes are fixedly connected between the detection box and the exhaust pipe in a penetrating manner, a sliding plug is slidably connected to the interior of each fixed pipe, and a transmission rod is fixedly connected to one side of each sliding plug; when the air pressure in the fixed pipe is increased, the resistance block moves on the resistance rod, so that the resistance value of the resistance block and the resistance rod is displayed on the display in real time, and whether activated carbon particles, drying agent particles and a filter screen in the exhaust pipe are blocked or not can be judged according to the numerical value change of the display; and the situation that gas in the biosafety cabinet cannot be normally exhausted due to blockage of the exhaust pipe is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of biological safety cabinets, in particular to a biological safety cabinet which is convenient for observation. Background Art

[0002] Biological safety cabinets are designed to protect operators, laboratory environments and experimental materials when operating primary cultures, bacterial strains, diagnostic specimens and infectious experimental materials, so as to avoid exposure to infectious aerosols and splashes that may be generated during the above operations. Biological safety cabinets are widely used in the fields of medical care, disease prevention and control, food hygiene, biopharmaceuticals, environmental monitoring and various biological laboratories, and are an important basis for ensuring biological and environmental safety.

[0003] A Chinese patent discloses a biosafety cabinet (authorization announcement number CN220715891U) that is convenient for observing samples. The patented technology can be used to discharge harmful and toxic gases inside the cabinet by setting a ventilation pipe. By setting a filter mechanism at the air outlet of the ventilation pipe, the activated carbon particles and desiccant particles inside the filter mechanism are conducive to absorbing and purifying the toxins and bacteria inside the gas, preventing the staff from inhaling and causing danger during the experiment. The setting of the activated carbon particles is conducive to absorbing toxins, bacteria and strange smells in the gas, and the setting of the filter cloth is conducive to enhancing the filtering effect. However, after long-term use, the filter mechanism will gradually become clogged due to the accumulation of impurities, and the staff cannot know the use status of the filter element inside the filter device in real time, which easily leads to the phenomenon that the gas inside the biosafety cabinet cannot be discharged normally. Therefore, a biosafety cabinet that is easy to observe is provided to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a biological safety cabinet that is easy to observe, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A biosafety cabinet that is easy to observe, comprises a cabinet body, an exhaust pipe and an air filter are installed on the cabinet body, activated carbon particles, desiccant particles and a filter are installed inside the exhaust pipe, a detection box is arranged on one side of the exhaust pipe, a plurality of fixed tubes are fixedly and through-connected between the detection box and the exhaust pipe, a plurality of fixed tubes are slidably connected inside the plurality of fixed tubes, a transmission rod is fixedly connected to one side of the sliding plug, a plurality of resistance rods are fixedly connected inside the detection box, a resistance block is slidably connected to the resistance rod, the resistance block is fixedly connected to the transmission rod, a plastic spring is fixedly connected between the resistance block and the inner wall of the detection box, a display is arranged on one side of the detection box, and the display is electrically connected to the resistance block and the resistance rod.

[0007] As a further solution of the utility model: wherein, the plurality of fixed tubes are respectively located between the activated carbon particles, the desiccant particles and the filter screen.

[0008] As a further solution of the utility model: wherein, an air inlet is arranged between the cabinet and the air filter.

[0009] As a further solution of the utility model: wherein, a driving motor is installed inside the cabinet, a rotating disk is installed on the driving motor, and a plurality of culture dishes are placed on the rotating disk.

[0010] As a further solution of the utility model: wherein, a microscope is installed on the cabinet, an operating hole is provided on the lower side of the microscope, and the sliding plate is slidably connected to the cabinet.

[0011] As a further solution of the utility model: wherein, a placing table is provided on one side of the driving motor, an observation tray is installed on the placing table, a sealing cover is hinged on one side of the placing table, and a plurality of sterilization lamps are installed on the sealing cover.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The gas inside the cabinet can be discharged through the exhaust pipe, and the activated carbon particles, desiccant particles and filter net inside the exhaust pipe can filter the discharged gas to remove harmful substances in the gas. When the activated carbon particles, desiccant particles and filter net inside the exhaust pipe are blocked, the air pressure inside the fixed pipe will increase. When the air pressure inside the fixed pipe increases, the resistor block will move on the resistor rod, so that the resistance values ​​on the resistor block and the resistor rod are displayed in real time on the display. According to the changes in the value on the display, it can be determined whether the activated carbon particles, desiccant particles and filter net inside the exhaust pipe are blocked, which is convenient for the staff to replace and avoid the gas inside the biological safety cabinet from being unable to be discharged normally due to the blockage of the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the interior of the cabinet structure in the utility model;

[0016] Figure 3 It is a schematic cross-sectional view of the detection box structure in the utility model;

[0017] Figure 4 This is a schematic diagram of the microscope structure in the utility model;

[0018] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0019] 1. Cabinet; 101. Microscope; 103. Sliding plate; 104. Operating hole; 2. Air filter; 3. Exhaust pipe; 301. Activated carbon granules; 302. Desiccant granules; 303. Filter; 4. Detection box; 401. Sliding plug; 402. Transmission rod; 403. Plastic spring; 404. Resistance rod; 405. Resistance block; 406. Display; 407. Fixed tube; 5. Driving motor; 501. Rotating disk; 502. Culture dish; 6. Placement table; 601. Observation tray; 602. Sealing cover; 603. Sterilization lamp. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 : A biological safety cabinet that is easy to observe, comprises a cabinet body 1, an exhaust pipe 3 and an air filter 2 are installed on the cabinet body 1, activated carbon particles 301, desiccant particles 302 and a filter screen 303 are installed inside the exhaust pipe 3, a detection box 4 is arranged on one side of the exhaust pipe 3, a plurality of fixed pipes 407 are fixedly and through-connected between the detection box 4 and the exhaust pipe 3, a sliding plug 401 is slidably connected inside the plurality of fixed pipes 407, a transmission rod 402 is fixedly connected on one side of the sliding plug 401, a plurality of resistance rods 404 are fixedly connected inside the detection box 4, a resistance block 405 is slidably connected on the resistance rod 404, the resistance block 405 is fixedly connected to the transmission rod 402, a plastic spring 403 is fixedly connected to the inner wall of the resistance block 405 and the detection box 4, a display 406 is arranged on one side of the detection box 4, and the display 406 is electrically connected to the resistance block 405 and the resistance rod 404.

[0021] The exhaust pipe 3 is provided to discharge the gas inside the cabinet 1, wherein the activated carbon particles 301, the desiccant particles 302 and the filter 303 inside the exhaust pipe 3 can filter the discharged gas to remove harmful substances in the gas, and when the activated carbon particles 301, the desiccant particles 302 and the filter 303 inside the exhaust pipe 3 are blocked, the air pressure inside the fixed pipe 407 will be increased, such as: when the desiccant particles 302 are blocked, the gas under the desiccant particles 302 cannot be discharged through the desiccant particles 302, so that the gas under the desiccant particles 302 is blocked. The air pressure is greater than the air pressure on the upper side of the desiccant particles 302, which will cause the sliding plug 401 inside the fixed tube 407 on the lower side of the desiccant particles 302 to move toward the plastic spring 403. The movement of the sliding plug 401 drives the resistor block 405 to move on the resistor rod 404, thereby changing the resistance values ​​of the resistor block 405 and the resistor rod 404, so that the resistance values ​​on the resistor block 405 and the resistor rod 404 are displayed in real time on the display 406. According to the changes in the values ​​on the display 406, it can be determined whether the activated carbon particles 301, the desiccant particles 302 and the filter 303 inside the exhaust pipe 3 are blocked.

[0022] Preferably, the plurality of fixed tubes 407 are respectively located between the activated carbon particles 301 , the desiccant particles 302 and the filter screen 303 .

[0023] The activated carbon particles 301 , the desiccant particles 302 and the filter screen 303 can be monitored respectively through a plurality of fixed tubes 407 to observe whether the activated carbon particles 301 , the desiccant particles 302 and the filter screen 303 are blocked.

[0024] Preferably, an air inlet is provided between the cabinet 1 and the air filter 2 .

[0025] The air can enter the cabinet 1 through the air inlet, and the air entering the cabinet 1 can be filtered through the air filter 2.

[0026] Preferably, a driving motor 5 is installed inside the cabinet 1 , a rotating disk 501 is installed on the driving motor 5 , and a plurality of culture dishes 502 are placed on the rotating disk 501 .

[0027] The rotating disk 501 can be driven to rotate by the driving motor 5 to facilitate adjusting the position of the culture dish 502 .

[0028] Preferably, a microscope 101 is installed on the cabinet 1 , an operating hole 104 is provided on the lower side of the microscope 101 , and a sliding plate 103 is slidably connected to the cabinet 1 .

[0029] The biological samples inside the cabinet 1 can be observed through the microscope 101, and the operation hole 104 is convenient for the staff to observe and operate the biological samples inside the cabinet 1 with both hands without opening the cabinet door.

[0030] Preferably, a placement table 6 is provided on one side of the driving motor 5 , an observation tray 601 is installed on the placement table 6 , a sealing cover 602 is hinged on one side of the placement table 6 , and a plurality of sterilization lamps 603 are installed on the sealing cover 602 .

[0031] When observing the biological sample inside the culture dish 502, first place a glass slide on the placement table 6, then drop the biological sample inside the culture dish 502 onto the glass slide through a test tube, and then cover the glass slide with a layer of observation glass, and then observe the biological sample on the placement table 6 through the microscope 101.

[0032] Working principle: The gas inside the cabinet 1 can be discharged through the exhaust pipe 3, and the activated carbon particles 301, desiccant particles 302 and filter 303 inside the exhaust pipe 3 can filter the discharged gas to remove harmful substances in the gas. When the activated carbon particles 301, desiccant particles 302 and filter 303 inside the exhaust pipe 3 are blocked, the air pressure inside the fixed pipe 407 will increase. When the air pressure inside the fixed pipe 407 increases, the resistor block 405 will move on the resistor rod 404, so that the resistance values ​​on the resistor block 405 and the resistor rod 404 are displayed in real time on the display 406. According to the changes in the values ​​of the display 406, it can be determined whether the activated carbon particles 301, desiccant particles 302 and filter 303 inside the exhaust pipe 3 are blocked, which is convenient for the staff to replace and avoid the gas inside the biological safety cabinet from being unable to be discharged normally due to the blockage of the exhaust pipe 3.

[0033] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biosafety cabinet for easy observation, comprising a cabinet body (1), characterized in that: An exhaust pipe (3) and an air filter (2) are mounted on the cabinet (1); activated carbon particles (301), desiccant particles (302) and a filter screen (303) are mounted inside the exhaust pipe (3); a detection box (4) is disposed on one side of the exhaust pipe (3); a plurality of fixed pipes (407) are fixedly connected and through-connected between the detection box (4) and the exhaust pipe (3); a sliding plug (401) is slidably connected inside the plurality of fixed pipes (407); a transmission plug (401) is fixedly connected on one side of the sliding plug (401). The detection box (4) is provided with a plurality of resistance rods (404) fixedly connected inside, a resistance block (405) is slidably connected to the resistance rod (404), the resistance block (405) is fixedly connected to the transmission rod (402), a plastic spring (403) is fixedly connected to the resistance block (405) and the inner wall of the detection box (4), and a display (406) is provided on one side of the detection box (4), and the display (406) is electrically connected to the resistance block (405) and the resistance rod (404).

2. A biological safety cabinet for easy observation according to claim 1, characterized in that: The plurality of fixed tubes (407) are respectively located between the activated carbon particles (301), the desiccant particles (302) and the filter screen (303).

3. A biosafety cabinet for easy observation according to claim 1, characterized in that: An air inlet is provided between the cabinet (1) and the air filter (2).

4. The biosafety cabinet for easy observation according to claim 1, characterized in that: A driving motor (5) is installed inside the cabinet (1), a rotating disk (501) is installed on the driving motor (5), and a plurality of culture dishes (502) are placed on the rotating disk (501).

5. The biosafety cabinet for easy observation according to claim 1, characterized in that: A microscope (101) is installed on the cabinet (1), an operating hole (104) is provided on the lower side of the microscope (101), and a sliding plate (103) is slidably connected to the cabinet (1).

6. A biosafety cabinet for easy observation according to claim 4, characterized in that: A placement table (6) is provided on one side of the driving motor (5), an observation tray (601) is mounted on the placement table (6), a sealing cover (602) is hingedly connected to one side of the placement table (6), and a plurality of sterilization lamps (603) are mounted on the sealing cover (602).

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