A biosafety cabinet detector

Abstract

The application discloses a biosafety cabinet detector and relates to the technical field of biosafety cabinets.The biosafety cabinet detector comprises a biosafety cabinet component, and an emergency protection component, an emergency suction component and a microorganism detection component are arranged in the biosafety cabinet component respectively.When the biosafety cabinet detector is used, the emergency blower sends air into the air inlet cavity, blows the vertical air current downward through the air blowing pipe, quickly forms a gas screen, and prevents the contaminated air from leaking out in the first time.Meanwhile, the alarm is triggered to remind the staff to leave, and then the positive and negative motor drives the arc-shaped protection plate to turn out.The emergency air suction machine sucks the air into the cabinet body through the air suction port, and the exhaust fan sends the gas to the second filter box body for treatment.Then, the multi-stage electric push rod drives the front window to move downward, is closed, forms the vertical air current screen barrier, combines the emergency suction gas, closes the loop to purify the air, and finally physically closes the end, so that the safety is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biological safety cabinets, in particular to a biological safety cabinet detector. BACKGROUND

[0002] A biological safety cabinet is a negative pressure purification equipment widely used in microbiology, biomedical, biopharmaceutical and other fields. Through specific air filtration and airflow control technology, it provides safety protection for operators, experimental samples and the environment to prevent the exposure and spread of harmful biological factors. In biological experiments, some microorganisms are often used, some of which are pathogenic microorganisms. By operating pathogenic microorganisms in a biological safety cabinet, the spread of pathogenic microorganisms to the outside of the laboratory can be prevented, and the harm to external equipment or the environment and cross-contamination can be avoided.

[0003] In the prior art, the safety of a biological safety cabinet depends on a stable operating state. A detector is usually installed in the cabinet to monitor the environmental parameters in the cabinet in real time to ensure that they meet safety standards. When the outflow or exhaust airflow is abnormally reduced, the detector detects the outflow or exhaust airflow, and the experimental personnel are reminded to leave and manually close the window in the first time. However, during the process of closing the window, there is still a situation of microbial leakage, which pollutes the experimental environment, and even the entire laboratory needs to be thoroughly cleaned and disinfected, affecting the normal operation of the laboratory.

[0004] Therefore, we propose a biological safety cabinet detector to solve the problems raised in the background. SUMMARY

[0005] The present application aims to provide a biological safety cabinet detector to solve the problem that when the outflow or exhaust airflow is abnormally reduced, the experimental personnel are reminded to manually close the window, and during the process of closing the window, there is still a situation of microbial leakage, which pollutes the experimental environment, and even the entire laboratory needs to be thoroughly cleaned and disinfected, affecting the normal operation of the laboratory.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a biological safety cabinet detector, comprising a biological safety cabinet assembly, an emergency protection assembly, an emergency suction assembly and a microorganism detection assembly are arranged in the biological safety cabinet assembly, and a rotating assembly is arranged on the top of the emergency suction assembly.

[0007] The biological safety cabinet assembly comprises a cabinet body, an operation cabinet is fixedly installed in the inside of the cabinet body, and an intelligent controller is fixedly installed on the rear surface of the inside of the cabinet body.

[0008] The emergency protection assembly comprises an emergency blower and a front window, an outer surface of the front window is fixedly connected with a sealing ring, a top of the front window is provided with two multi-stage electric push rods, an inside of the front window is provided with an air inlet cavity, a bottom of the front window is fixedly connected with a plurality of air blowing pipes, an output end of the emergency blower is fixedly connected with a first hose, and one end of the first hose is fixedly connected with a fixed air pipe.

[0009] The emergency suction assembly comprises an arc-shaped protection plate and an emergency air suction machine, a plurality of air suction openings are arranged at the top of the outer surface of the arc-shaped protection plate, and a T-shaped pipe is fixedly connected to the input end of the emergency air suction machine.

[0010] Preferably, the outer surface of the T-shaped pipe is fixedly connected with two fixed pipes, one end of each of the two fixed pipes is fixedly connected with a second hose, one end of each of the two second hoses is fixedly connected with an air suction cover, the outer surface of the arc-shaped protection plate is fixedly connected with a lip-shaped sealing sleeve, and the top of the arc-shaped protection plate is fixedly connected with an extrusion type sealing strip.

[0011] Preferably, a partition plate is fixedly installed inside the cabinet body near the first hose, an operating opening is arranged on the front surface of the cabinet body, a window groove is arranged inside the cabinet body near the operating opening, a sealing hole is arranged at the corner of the inner bottom surface of the window groove, a rubber ring is fixedly connected to the inner wall of the sealing hole, an embedded groove is arranged on the top surface inside the window groove, a first gas sensor is arranged on the top surface of one side inside the operating cabinet, a second gas sensor is arranged on the rear surface inside the cabinet body near the intelligent controller, a fixed suction pipe is fixedly connected to the input end of the emergency blower, one end of the fixed suction pipe is fixedly penetrated to the outer surface of the cabinet body, and the bottom of the emergency blower is fixedly installed on one side of the inner bottom surface of the cabinet body.

[0012] Preferably, the outer surface of the sealing ring is movably embedded inside the window groove, the outer surface of the sealing ring is tightly attached to the inner wall of the window groove, the bottom end of each of the two multi-stage electric push rods is fixedly installed with a push rod, the bottom end of each of the two push rods is fixedly penetrated to the inside of the sealing ring, the bottom end of each of the two push rods is fixedly installed on the top of the front window, the top end of each of the two multi-stage electric push rods is fixedly installed on the top surface inside the embedded groove, the bottom end of each of the plurality of air blowing pipes is fixedly penetrated to the inside of the sealing ring, a plurality of mounting holes are arranged on the bottom of the sealing ring, the outer surface of the fixed air pipe is attached to the inner wall of the rubber ring, one end of the fixed air pipe is fixedly penetrated to the inside of the air inlet cavity through the sealing ring and the front window, an arc-shaped hole is arranged inside the cabinet body near the window groove, the air suction cover is fixedly installed on one side of the outer surface of the arc-shaped protection plate, the inside of the arc-shaped protection plate is in communication with the inside of the air suction cover through a circular hole, and the outer surface of the arc-shaped protection plate is movably embedded inside the arc-shaped hole.

[0013] Preferably, the rotating assembly comprises a reversible motor, the output end of the reversible motor is fixedly installed with a rotating rod, the outer surface of the rotating rod is fixedly installed with four fixed rods, the bottom ends of the four fixed rods are fixedly installed on the outer surface of the arc-shaped protective plate, the outer surface of the reversible motor is fixedly installed on one side in the interior of the cabinet body, and one end of the rotating rod is movably embedded on the other side in the interior of the cabinet body.

[0014] Preferably, the microorganism detection assembly comprises a liquid pump and two fixed cylinders, the interiors of the two fixed cylinders are movably embedded with piston rods, one end of each of the two piston rods is fixedly installed with a detection block, the outer surface of one side of the detection block is fixedly installed with a microorganism detection sensor, the outer surfaces of one ends of the two fixed cylinders are fixedly connected with connecting pipes, one end of each of the two connecting pipes is fixedly connected with a spray pipe, the outer surface of each of the two spray pipes is fixedly connected with a plurality of atomizing nozzles, and the outer surfaces of the two connecting pipes are provided with micro electromagnetic valves.

[0015] Preferably, the input end of the liquid pump is fixedly connected with a liquid suction pipe, the output end of the liquid pump is fixedly connected with a three-way pipe, two ends of the three-way pipe are fixedly connected with third hoses, the outer surfaces of the two ends of the three-way pipe are provided with intelligent electromagnetic valves, one end of each of the two third hoses is fixedly connected with a liquid inlet pipe, one end of each of the two liquid inlet pipes is fixedly connected with the outer surface of one end of the two fixed cylinders, one end of each of the two liquid inlet pipes is fixedly penetrated into the interior of the arc-shaped protective plate, the bottom surface of the interior of the cabinet body close to the rear surface wall is fixedly installed with a liquid storage tank, the rear surface of the liquid storage tank is fixedly connected with a filling pipe, one end of the filling pipe is fixedly penetrated through the rear surface of the cabinet body, and one end of the liquid suction pipe is fixedly penetrated through the interior of the liquid storage tank.

[0016] Preferably, the liquid pump is installed on the bottom surface in the interior of the cabinet body through an auxiliary plate, the outer surfaces of the two fixed cylinders are fixedly installed at the corners in the interior of the arc-shaped protective plate, the interior of the detection block is movably embedded with a support rod, the two ends of the support rod are fixedly installed on one side in the interior of the arc-shaped protective plate close to the circular hole, the bottoms of the two spray pipes are fixedly installed on the inner wall of the arc-shaped protective plate, the bottom of the emergency air suction fan is fixedly installed on the top of the liquid storage tank, and the outer surface of the T-shaped pipe is installed on the edge of the top of the liquid storage tank through an auxiliary block.

[0017] Preferably, a temperature and humidity sensor is arranged on one side in the interior of the operation cabinet, an operation panel and an alarm are sequentially arranged on the front surface of the cabinet body, illuminating lamps are arranged at the two corners of the top surface in the interior of the operation cabinet, an ultraviolet lamp is arranged on the rear surface wall in the interior of the operation cabinet, a first filter box body is fixedly installed on the top of the operation cabinet, a first high-efficiency filter is arranged in the interior of the first filter box body, and a supply air fan and an exhaust air fan are fixedly installed on the top of the first filter box body.

[0018] Preferably, the input end of the air supply fan is fixedly connected with an air inlet pipeline, the top end of the air inlet pipeline is fixedly penetrated into the top of the cabinet body, the output end of the air supply fan is fixedly connected with an air supply pipe, one end of the air supply pipe is fixedly connected with the top of the first filter box body, the output end of the air exhaust fan is fixedly connected with an air exhaust pipeline, the top end of the air exhaust pipeline is fixedly connected with a second filter box body, the inside of the second filter box body is provided with a second high-efficiency filter, and the top of the second filter box body is fixedly connected with the top surface of the inside of the cabinet body close to the air outlet.

[0019] Compared with the prior art, the application has the beneficial effects that:

[0020] 1、When the application is used, the emergency air blower sends air into the air inlet cavity, blows out vertical air flow downward through the air blowing pipe, quickly forms a gas screen, and first prevents contaminated air from leaking out through the operation opening.

[0021] 2、When the application is used, the air supply fan and the air exhaust fan are started, the air inlet pipeline sucks external air into the air supply pipe, then sends the air into the inside of the first filter box body, the air is filtered by the first high-efficiency filter, then the clean gas enters the operation cabinet downward through the air holes in the top of the operation cabinet, covers the whole operation table, and forms a "clean operation area".

[0022] 3、The microorganism detection sensor detects the microorganism in the air, when the high pathogenic microorganism is detected in the air, the intelligent controller adjusts the power of the emergency blower and the emergency suction fan, and the contaminated air is sucked away or introduced into the operation cabinet more powerfully, so that the high pathogenic microorganism is prevented from being discharged more effectively. By injecting disinfectant on both sides, the two piston rods move back and forth, driving the microorganism detection sensor to move, detecting the air in different positions, which is helpful to improve the accuracy of microorganism detection. At the same time, the disinfectant is sprayed in the atomized state through the atomizing nozzle, contacts with the contaminated air, and quickly inactivates the local microorganism, and then combines with the filtration and retention, improves the air treatment effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view of the biosafety cabinet detector of the application;

[0024] Figure 2 It is a structure sectional view schematic diagram of the biosafety cabinet assembly in the biosafety cabinet detector of the application;

[0025] Figure 3 It is a structure sectional view schematic diagram of the operation cabinet in the biosafety cabinet detector of the application;

[0026] Figure 4 It is another angle structure sectional view schematic diagram of the operation cabinet in the biosafety cabinet detector of the application;

[0027] Figure 5 It is a structure sectional view schematic diagram of the first filter box in the biosafety cabinet detector of the application;

[0028] Figure 6 It is a structure sectional view schematic diagram of the embedded groove in the biosafety cabinet detector of the application;

[0029] Figure 7 It is a structure expansion schematic diagram of the front window in the biosafety cabinet detector of the application;

[0030] Figure 8 It is a structure sectional view schematic diagram of the sealing hole in the biosafety cabinet detector of the application;

[0031] Figure 9 It is a structure sectional view schematic diagram of the cabinet body in the biosafety cabinet detector of the application;

[0032] Figure 10 It is a structure sectional view schematic diagram of the extrusion type sealing strip in the biosafety cabinet detector of the application;

[0033] Figure 11 It is a structure schematic diagram of the emergency suction assembly in the biosafety cabinet detector of the application;

[0034] Figure 12 It is a structure expansion diagram of the suction hood in the biological safety cabinet detector of the application;

[0035] Figure 13 It is a structure expansion diagram of the suction hood in the biological safety cabinet detector of the application;

[0036] Figure 14 It is a structure expansion diagram of the suction hood in the biological safety cabinet detector of the application;

[0037] Figure 15 It is a structure expansion diagram of the suction hood in the biological safety cabinet detector of the application;

[0038] Figure 16 It is a structure expansion diagram of the suction hood in the biological safety cabinet detector of the application.

[0039] In the figure:

[0040] 1, biological safety cabinet assembly; 101, cabinet body; 102, operation cabinet; 103, temperature and humidity sensor; 104, operation port; 105, operation panel; 106, alarm; 107, intelligent controller; 108, second gas sensor; 109, first filter box; 110, air supply fan; 111, air inlet pipeline; 112, exhaust fan; 113, exhaust pipeline; 114, first high-efficiency filter; 115, lighting lamp; 116, ultraviolet lamp; 117, embedded groove; 118, first gas sensor; 119, second filter box; 120, second high-efficiency filter; 121, air supply pipe; 122, window groove; 123, arc-shaped hole; 124, partition; 125, sealing hole; 126, rubber ring; 2, emergency protection assembly; 201, emergency air blower; 202, first hose; 203, fixed air pipe; 204, fixed suction pipe; 205, front window; 206, sealing ring; 207, multi-stage electric push rod; 208, push rod; 209, air blowing pipe; 210, air inlet cavity; 3, emergency suction assembly; 301, arc-shaped protection plate; 302, air inlet; 303, emergency air blower; 304, T-shaped pipe; 305, fixed pipe; 306, second hose; 307, suction hood; 308, lip-shaped sealing sleeve; 309, extrusion type sealing strip; 4, rotating assembly; 401, forward and reverse motor; 402, rotating rod; 403, fixed rod; 5, microorganism detection assembly; 501, fixed cylinder; 502, piston rod; 503, detection block; 504, microorganism detection sensor; 505, spray pipe; 506, connecting pipe; 507, micro electromagnetic valve; 508, atomizing nozzle; 509, liquid storage tank; 510, injection pipe; 511, liquid pump; 512, three-way pipe; 513, liquid suction pipe; 514, intelligent electromagnetic valve; 515, third hose; 516, liquid inlet pipe; 517, support rod. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0042] Embodiment one: please refer to Figures 1-16As shown, the present application provides a technical scheme: a biological safety cabinet detector, comprising a biological safety cabinet component 1, the inside of the biological safety cabinet component 1 is respectively provided with an emergency protection component 2, an emergency suction component 3 and a microorganism detection component 5, the top of the emergency suction component 3 is provided with a rotating component 4; the biological safety cabinet component 1 comprises a cabinet body 101, the inside of the cabinet body 101 is fixedly installed with an operation cabinet 102, the rear surface of the inside of the cabinet body 101 is fixedly installed with an intelligent controller 107; the emergency protection component 2 comprises an emergency blower 201 and a front window 205, the outer surface of the front window 205 is fixedly connected with a sealing ring 206, the top of the front window 205 is provided with two multi-stage electric push rods 207, the inside of the front window 205 is provided with an air inlet cavity 210, the bottom of the front window 205 is fixedly connected with a plurality of air blowing pipes 209, the output end of the emergency blower 201 is fixedly connected with a first hose 202, one end of the first hose 202 is fixedly connected with a fixed air pipe 203;The emergency suction assembly 3 comprises an arc-shaped protective plate 301 and an emergency air suction fan 303, a plurality of air suction openings 302 are formed at the top of the outer surface of the arc-shaped protective plate 301, a T-shaped pipe 304 is fixedly connected to the input end of the emergency air suction fan 303, two fixed pipes 305 are fixedly connected to the outer surface of the T-shaped pipe 304, two second hoses 306 are fixedly connected to one end of the two fixed pipes 305, an air suction cover 307 is fixedly connected to one end of the two second hoses 306, a lip-shaped sealing sleeve 308 is fixedly connected to the outer surface of the arc-shaped protective plate 301, an extrusion type sealing strip 309 is fixedly connected to the top of the arc-shaped protective plate 301, a partition plate 124 is fixedly installed at the inside of the cabinet body 101 close to the first hose 202, an operation opening 104 is formed on the front surface of the cabinet body 101, a window groove 122 is formed at the inside of the cabinet body 101 close to the operation opening 104, a sealing hole 125 is formed at the corner of the inner bottom surface of the window groove 122, a rubber ring 126 is fixedly connected to the inner wall of the sealing hole 125, an embedded groove 117 is formed at the top of the inside of the window groove 122, a first gas sensor 118 is arranged at the top of one side of the inside of the operation cabinet 102, a second gas sensor 108 is arranged at the rear surface of the inside of the cabinet body 101 close to the intelligent controller 107, a fixed suction pipe 204 is fixedly connected to the input end of the emergency air blowing fan 201, one end of the fixed suction pipe 204 is fixedly penetrated to the outer surface of the cabinet body 101, the bottom of the emergency air blowing fan 201 is fixedly installed at one side of the inner bottom surface of the cabinet body 101, the outer surface of the sealing ring 206 is movably embedded in the inside of the window groove 122, the outer surface of the sealing ring 206 is tightly attached to the inner wall of the window groove 122, the bottom ends of two multi-stage electric push rods 207 are fixedly installed with push rods 208, the bottom ends of the two push rods 208 are fixedly penetrated to the inside of the sealing ring 206, the bottom ends of the two push rods 208 are fixedly installed at the top of the front window 205, the top ends of the two multi-stage electric push rods 207 are fixedly installed at the top surface of the inside of the embedded groove 117, the bottom ends of a plurality of air blowing pipes 209 are fixedly penetrated to the inside of the sealing ring 206, a plurality of mounting holes are formed at the bottom of the sealing ring 206, the outer surface of the fixed air pipe 203 is attached to the inner wall of the rubber ring 126, one end of the fixed air pipe 203 is fixedly penetrated to the inside of the air inlet cavity 210 through the sealing ring 206 and the front window 205, an arc-shaped hole 123 is formed at the inside of the cabinet body 101 close to the window groove 122, the air suction cover 307 is fixedly installed at one side of the outer surface of the arc-shaped protective plate 301, the inside of the arc-shaped protective plate 301 is communicated with the inside of the air suction cover 307 through a circular hole, the outer surface of the arc-shaped protective plate 301 is movably embedded in the inside of the arc-shaped hole 123, the rotating assembly 4 comprises a forward and reverse motor 401, the output end of the forward and reverse motor 401 is fixedly installed with a rotating rod 402, the outer surface of the rotating rod 402 is fixedly installed with four fixed rods 403, the bottom ends of the four fixed rods 403 are fixedly installed at the outer surface of the arc-shaped protective plate 301, the outer surface of the forward and reverse motor 401 is fixedly installed at one side of the inside of the cabinet body 101, one end of the rotating rod 402 is movably embedded at the other side of the inside of the cabinet body 101.

[0043] In this embodiment, when using the biosafety cabinet assembly 1 to conduct a microbial experiment, the first gas sensor 118 and the second gas sensor 108 are started to detect the incoming air and the return air, respectively, and the detected gas flow rate and flow data are transmitted to the intelligent controller 107 in the form of electrical signals for identification and comparison. When the data is normal, the experiment is normally conducted; when the data is abnormal, the intelligent controller 107 triggers the emergency air blower 201 to start at the first time, and at the same time, triggers the alarm 106 to start, reminding the staff to leave at the first time, and then triggers the positive and negative motor 401 and the emergency air suction machine 303 to start. After the emergency air blower 201 starts, the air is sucked into the first hose 202 through the fixed suction pipe 204, enters the air inlet cavity 210 through the fixed air pipe 203, and then blows out the vertical air flow downward through the plurality of air blowing pipes 209, forming a vertical downward air flow at the operation port 104, quickly forming a gas screen, forming a physical isolation, and stopping the contaminated air from leaking out through the operation port 104 at the first time. At the same time, the output end of the positive and negative motor 401 drives the rotating rod 402 to rotate, and the fixed rod 403 drives the arc-shaped protective plate 301 to rotate quickly, so that the arc-shaped protective plate 301 rotates upward in the arc-shaped hole 123 with the rotating rod 402 as the axis, and the extruded sealing strip 309 is pushed out, and the lip-shaped sealing sleeve 308 is also rotated. When the positive and negative motor 401 is automatically turned off, the arc-shaped protective plate 301 stops rotating, the lip-shaped sealing sleeve 308 is clamped into the inside of the bottom of the arc-shaped hole 123, and the arc-shaped hole 123 is sealed again, and the plurality of air suction ports 302 are turned out and face the bottom of the vertical air flow. At this time, at the operation port 104, the vertical air flow forms a gas screen, forcing the contaminated air to flow out, and the arc-shaped protective plate 301 rotates to the bottom of the vertical air flow, forming a backstop, and forcibly guiding part of the contaminated air to flow back to the inside of the operation cabinet 102, and being sucked away through the internal return air port. Part of the air is forced to be sucked into the inside of the arc-shaped protective plate 301 by the emergency air suction machine 303, then enters the air suction cover 307 through the plurality of circular holes on one side, then enters the second hose 306, the fixed pipe 305 and the T-shaped pipe 304, respectively, and finally is discharged into the inside of the cabinet body 101, and the air is sucked into the second filter box 119 by the exhaust fan 112 for treatment. Through the emergency suction assembly 3, a blow-suction closed loop circulation mode is formed to avoid unorganized diffusion of emergency air flow and reduce the influence of the leakage of contaminated air on the experimental environment. Then the multi-stage electric push rod 207 is started to push the front window 205 to move downward, at this time, the front window 205 always maintains the mode of "blowing out vertical air flow screen downward + physical protection + auxiliary suction of air" to move downward, and always prevents the contaminated air from diffusing outward during the closing process, greatly improving the safety and reducing the pollution to the experimental environment.After the bottom of the sealing ring 206 is inserted into the window groove 122, the front window 205 closes and blocks the operation port 104. Then, the emergency blower 201 automatically shuts down, followed by the emergency suction fan 303. The forward and reverse motor 401 drives the arc-shaped protective plate 301 to reverse and reset. With the cooperation of the emergency protection component 2 and the emergency suction component 3, a vertical airflow screen is formed to actively intercept the leakage of polluted air. Combined with the emergency suction gas, the air is purified in a closed loop. Finally, the system is physically sealed to completely cut off the leakage. This upgrades the traditional single "fault alarm" to "dynamic response protection," effectively improving safety. It solves the problem that when the biosafety cabinet detector detects an abnormal decrease in airflow, it will remind the experimenter to manually close the window. However, during the window closing process, there is still a possibility of microbial leakage, which can contaminate the experimental environment and even require thorough cleaning and disinfection of the entire laboratory, affecting the normal operation of the laboratory.

[0044] Example 2: Figures 1-5 As shown, the biosafety cabinet assembly 1 includes a cabinet body 101, an operating cabinet 102 fixedly installed inside the cabinet body 101, an intelligent controller 107 fixedly installed on the rear surface inside the cabinet body 101, a temperature and humidity sensor 103 installed on one side inside the operating cabinet 102, an operating panel 105 and an alarm 106 sequentially installed on the front surface of the cabinet body 101, lighting lamps 115 installed at both corners of the top surface inside the operating cabinet 102, an ultraviolet lamp 116 installed on the rear wall inside the operating cabinet 102, a first filter box 109 fixedly installed on the top of the operating cabinet 102, a first high-efficiency filter 114 installed inside the first filter box 109, and the top of the first filter box 109... A supply fan 110 and an exhaust fan 112 are fixedly installed. The input end of the supply fan 110 is fixedly connected to an air inlet duct 111, and the top end of the air inlet duct 111 is fixedly connected to the top of the cabinet 101. The output end of the supply fan 110 is fixedly connected to an air supply pipe 121, and one end of the air supply pipe 121 is fixedly connected to the top of the first filter box 109. The output end of the exhaust fan 112 is fixedly connected to an exhaust duct 113, and the top end of the exhaust duct 113 is fixedly connected to a second filter box 119. A second high-efficiency filter 120 is installed inside the second filter box 119, and the top of the second filter box 119 is fixedly connected to the top surface of the cabinet 101 near the air outlet.

[0045] In this embodiment, when in use, the outer surface of the fixed air pipe 203 closely adheres to the inner wall of the rubber ring 126, and the sealing performance is good. The bottom of the extrusion sealing strip 309 is extruded and embedded inside the arc-shaped hole 123, sealing the arc-shaped hole 123. By operating the panel 105 to start the multi-stage electric push rod 207 in the emergency protection assembly 2, the front window 205 is pulled up to open, and the experimenter can put the test object into the operation cabinet 102 through the operation port 104 for the next operation. Start the air supply fan 110 and the exhaust fan 112, the air inlet duct 111 sucks the external air into the air supply pipe 121, and then transports it into the first filter box 109, filters the air through the first high-efficiency filter 114, and then the clean gas enters the operation cabinet 102 through the air hole at the top of the operation cabinet 102, forming an air flow barrier covering the entire operation table, forming a "clean operation area", preventing the escape of contaminated air inside the operation cabinet 102. At the same time, the exhaust fan 112 generates suction, and the contaminated air inside the operation cabinet 102 is sucked into the exhaust duct 113 through the air return port on the three sides and the bottom of the operation cabinet 102, and then discharged into the second filter box 119, filtered through the second high-efficiency filter 120, and the filtered clean air is discharged through the air outlet at the top. The temperature and humidity sensor 103 can detect the temperature and humidity of the operation area, turn on the lighting lamp 115 to illuminate, and facilitate the experiment. After closing the front window 205, the operation area can be sterilized by the ultraviolet lamp 116 to improve the cleanliness.

[0046] Embodiment three: as Figures 10-16As shown, the inner part of the biological safety cabinet assembly 1 is respectively provided with an emergency protection assembly 2, an emergency suction assembly 3 and a microorganism detection assembly 5. The microorganism detection assembly 5 includes a liquid pump 511 and two fixed cylinders 501. The inside of each of the two fixed cylinders 501 movably embeds a piston rod 502. One end of each of the two piston rods 502 is fixedly installed with a detection block 503. The outer surface of one side of the detection block 503 is fixedly installed with a microorganism detection sensor 504. The outer surface of one end of each of the two fixed cylinders 501 is fixedly connected with a connecting pipe 506. One end of each of the two connecting pipes 506 is fixedly connected with a spray pipe 505. The outer surface of each of the two spray pipes 505 is fixedly connected with a plurality of atomizing nozzles 508. The outer surface of each of the two connecting pipes 506 is provided with a micro electromagnetic valve 507. The input end of the liquid pump 511 is fixedly connected with a liquid suction pipe 513. The output end of the liquid pump 511 is fixedly connected with a three-way pipe 512. Two ends of the three-way pipe 512 are each fixedly connected with a third flexible pipe 515. The outer surface of each of the two ends of the three-way pipe 512 is provided with an intelligent electromagnetic valve 514. One end of each of the two third flexible pipes 515 is fixedly connected with a liquid inlet pipe 516. One end of each of the two liquid inlet pipes 516 is fixedly connected with the outer surface of one end of each of the two fixed cylinders 501. One end of each of the two liquid inlet pipes 516 is fixedly penetrated into the inside of the arc-shaped protection plate 301. The bottom surface of the inner part of the cabinet body 101 close to the rear surface wall is fixedly installed with a liquid storage tank 509. The rear surface of the liquid storage tank 509 is fixedly connected with a filling pipe 510. One end of the filling pipe 510 is fixedly penetrated through the rear surface of the cabinet body 101. One end of the liquid suction pipe 513 is fixedly penetrated into the inside of the liquid storage tank 509. The liquid pump 511 is installed on the bottom surface of the inside of the cabinet body 101 through an auxiliary plate. The outer surface of each of the two fixed cylinders 501 is fixedly installed at the corner inside the arc-shaped protection plate 301. The inside of the detection block 503 movably embeds a support rod 517. The two ends of the support rod 517 are each fixedly installed on one side of the inside of the arc-shaped protection plate 301 close to the circular hole. The bottom of each of the two spray pipes 505 is fixedly installed on the inner wall of the arc-shaped protection plate 301. The bottom of the emergency air suction fan 303 is fixedly installed on the top of the liquid storage tank 509. The outer surface of the T-shaped pipe 304 is installed on the edge of the top of the liquid storage tank 509 through an auxiliary block. The rear surface of the inside of the cabinet body 101 is fixedly installed with an intelligent controller 107.

[0047] In this embodiment, when in use, the microbial detection sensor 504 is started, the emergency suction assembly 3 sucks air into the arc-shaped protective plate 301, and when the air is discharged through the round hole, it will pass through the detection block 503 and be detected by the microbial detection sensor 504. When high pathogenic microorganisms are detected in the air, a signal is transmitted to the intelligent controller 107, which increases the power of the emergency blower 201 and the emergency suction fan 303, increases the vertical airflow screen wind speed and suction wind speed, and more strongly sucks or guides the contaminated air into the operation cabinet 102, and then enters the return air treatment link, which more effectively prevents the leakage of high pathogenic microorganisms. Then start the liquid pump 511, and start one of the intelligent electromagnetic valves 514 and one of the micro electromagnetic valves 507, as shown in Figure 15 The other fixed cylinder 501 has no disinfectant liquid, and the two piston rods 502 are extended and retracted. The liquid pump 511 pumps the disinfectant liquid in the liquid storage tank 509 into the three-way pipe 512 through the liquid suction pipe 513, enters the corresponding third hose 515 through the opened intelligent electromagnetic valve 514, and then enters the fixed cylinder 501 through the corresponding liquid inlet pipe 516. With the increase of liquid input, the piston rod 502 moves and pushes the detection block 503 and the microbial detection sensor 504 to move, thereby pushing the other piston rod 502 to move and extruding the disinfectant liquid in the other fixed cylinder 501, forcing the disinfectant liquid to enter the spray pipe 505 through the connecting pipe 506, and the disinfectant liquid is sprayed out in an atomized state by the plurality of atomizing nozzles 508, and contacts with the contaminated air inside the arc-shaped protective plate 301, rapidly inactivates the local microorganisms, and then combines with the filtration and retention to improve the air treatment effect. Then one of the intelligent electromagnetic valves 514 and one of the micro electromagnetic valves 507 are closed, and the other intelligent electromagnetic valve 514 and the other micro electromagnetic valve 507 are started. At this time, the disinfectant liquid enters the fixed cylinder 501 which has just discharged the disinfectant liquid, and pushes the piston rod 502 to move, thereby pushing the previous piston rod 502 to move in the opposite direction, and extruding the injected disinfectant liquid again. The disinfectant liquid is sprayed out by the atomizing nozzle 508 on the other side. Through the back and forth movement of the two piston rods 502, the detection block 503 and the microbial detection sensor 504 are moved back and forth, and the air at different positions is detected, which is beneficial to improve the accuracy of microbial detection; and the atomized disinfectant liquid is used for microbial inactivation of the contaminated air, which helps to prolong the service life of the filtration equipment and reduce the circulation pollution of high pathogenic microorganisms in the safety cabinet.

[0048] The effect and working principle of the whole mechanism are as follows: the air supply fan 110 and the air exhaust fan 112 are started, the air inlet pipeline 111 sucks external air into the air supply pipeline 121, and then the air is transported to the inside of the first filter box 109, the air is filtered by the first high-efficiency filter 114, then the clean gas enters the operation cabinet 102 through the air holes at the top of the operation cabinet 102, at the same time, the air exhaust fan 112 generates suction, the contaminated air in the operation cabinet 102 is sucked into the air exhaust pipeline 113 through the air return holes on the three sides and the bottom of the operation cabinet 102, and then is discharged into the second filter box 119, the gas is filtered by the second high-efficiency filter 120, and the pollutants such as microorganisms are intercepted. At the same time, the first gas sensor 118 and the second gas sensor 108 detect the air inlet and the air return respectively, when the data is abnormal, the intelligent controller 107 triggers the emergency air blower 201 to start in the first time, and at the same time, the alarm 106 is started to remind the staff to leave in the first time, and then the forward and reverse motor 401 and the emergency air suction fan 303 are started. After the emergency air blower 201 is started, the air is sucked into the first hose 202 through the fixed suction pipe 204, enters the air inlet cavity 210 through the fixed air pipe 203, and then is blown out downward through the plurality of air blowing pipes 209 to quickly form a gas screen, which prevents the contaminated air from leaking out through the operation port 104 in the first time. At the same time, the forward and reverse motor 401 drives the rotating rod 402 to rotate, the fixed rod 403 drives the arc-shaped protective plate 301 to rotate quickly, the extruded sealing strip 309 is pushed out, and the lip-shaped sealing sleeve 308 is also rotated. When the forward and reverse motor 401 is automatically closed, the lip-shaped sealing sleeve 308 is clamped into the inside of the arc-shaped hole 123 at the bottom, and the plurality of air suction ports 302 are turned out and face the bottom of the vertical air flow. Under the suction of the emergency air suction fan 303, the air is sucked into the arc-shaped protective plate 301 through the air suction port 302, enters the air suction cover 307 through the circular hole, and then enters the second hose 306, the fixed pipe 305 and the T-shaped pipe 304 respectively, and finally is discharged into the cabinet 101, and the air is sucked into the second filter box 119 by the air exhaust fan 112 for treatment. The microorganism detection sensor 504 detects the microorganisms in the air, when the high pathogenic microorganisms are detected in the air, the signal is transmitted to the intelligent controller 107, the intelligent controller 107 increases the power of the emergency air blower 201 and the emergency air suction fan 303, increases the wind speed of the vertical air flow screen and the suction speed, and more strongly sucks away or guides the contaminated air into the operation cabinet 102. Then the liquid pump 511, one of the intelligent electromagnetic valves 514 and one of the micro electromagnetic valves 507 are started.Liquid pump 511 through the liquid pump 513 disinfectant liquid tank 509 in the three-way pipe 512, through the opening of the intelligent electromagnetic valve 514 into the third hose 515, by the liquid inlet pipe 516 into the fixed cylinder 501, push the piston rod 502 movement, and push the detection block 503 and microbial detection sensor 504 movement, and then push another piston rod 502 movement, extrusion disinfectant, forced disinfectant through the connecting pipe 506 into the spray pipe 505, by the atomizing nozzle 508 disinfectant in the atomized state spray, with the arc-shaped protective plate 301 inside the contaminated air contact, rapid inactivation of local microorganisms. Then one of the intelligent electromagnetic valve 514 and one of the miniature electromagnetic valve 507 close, another intelligent electromagnetic valve 514 and another miniature electromagnetic valve 507 start, at this time the disinfectant into another fixed cylinder 501, push the piston rod 502 movement, forced another piston rod 502 extrusion of disinfectant injection before, through the other side of the atomizing nozzle 508 spray atomized disinfectant. Two piston rod 502 back and forth movement, detection block 503 and microbial detection sensor 504 back and forth movement, detection of air in different positions.

[0049] Among them, the temperature and humidity sensor 103, the operation panel 105, the alarm 106, the intelligent controller 107, the second gas sensor 108, the air supply fan 110, the exhaust fan 112, the lighting lamp 115, the ultraviolet lamp 116, the first gas sensor 118, the emergency blower 201, the multi-stage electric push rod 207, the emergency air suction fan 303, the forward and reverse motor 401, the microbial detection sensor 504, the miniature electromagnetic valve 507, the liquid pump 511 and the intelligent electromagnetic valve 514 are all prior art, and their components and use principles are all disclosed technology, which will not be explained here.

[0050] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A biological safety cabinet detector, comprising a biological safety cabinet assembly (1), characterized in that: The biosafety cabinet component (1) is internally provided with an emergency protection component (2), an emergency suction component (3) and a microorganism detection component (5), and the top of the emergency suction component (3) is provided with a rotating component (4); The biosafety cabinet component (1) comprises a cabinet body (101), and the inside of the cabinet body (101) is fixedly installed with an operation cabinet (102); and the rear surface of the inside of the cabinet body (101) is fixedly installed with an intelligent controller (107); The emergency protection component (2) comprises an emergency blower (201) and a front window (205), the outer surface of the front window (205) is fixedly connected with a sealing ring (206), the top of the front window (205) is provided with two multi-stage electric push rods (207), the inside of the front window (205) is provided with an air inlet cavity (210), the bottom of the front window (205) is fixedly connected with a plurality of air blowing pipes (209), the output end of the emergency blower (201) is fixedly connected with a first hose (202), one end of the first hose (202) is fixedly connected with a fixed air pipe (203); The emergency suction component (3) comprises an arc-shaped protection plate (301) and an emergency air suction machine (303), a plurality of air suction openings (302) are formed in the top of the outer surface of the arc-shaped protection plate (301), and the input end of the emergency air suction machine (303) is fixedly connected with a T-shaped pipe (304); The outer surface of the T-shaped pipe (304) is fixedly connected with two fixed pipes (305), one end of each of the two fixed pipes (305) is fixedly connected with a second hose (306), one end of each of the two second hoses (306) is fixedly connected with an air suction cover (307), the outer surface of the arc-shaped protection plate (301) is fixedly connected with a lip-shaped sealing sleeve (308), and the top of the arc-shaped protection plate (301) is fixedly connected with an extrusion type sealing strip (309); The inside of the cabinet body (101) is fixedly installed with a partition plate (124) close to the first hose (202), the front surface of the cabinet body (101) is provided with an operation opening (104), the inside of the cabinet body (101) is provided with a window groove (122) close to the operation opening (104), a sealing hole (125) is formed in the corner of the inner bottom surface of the window groove (122), the inner wall of the sealing hole (125) is fixedly connected with a rubber ring (126), the top surface of the inside of the window groove (122) is provided with an embedded groove (117), the top surface of one side of the inside of the operation cabinet (102) is provided with a first gas sensor (118), the rear surface of the inside of the cabinet body (101) is provided with a second gas sensor (108) close to the intelligent controller (107), the input end of the emergency blower (201) is fixedly connected with a fixed suction pipe (204), one end of the fixed suction pipe (204) is fixedly connected to the outer surface of the cabinet body (101), and the bottom of the emergency blower (201) is fixedly installed on one side of the inner bottom surface of the cabinet body (101). The outer surface of the sealing ring (206) is movably embedded in the window groove (122), the outer surface of the sealing ring (206) is tightly attached to the inner wall of the window groove (122), the bottom end of the two multi-stage electric push rods (207) is fixedly installed with a push rod (208), the bottom end of the two push rods (208) is fixedly penetrated into the inside of the sealing ring (206), the bottom end of the two push rods (208) is fixedly installed on the top of the front window (205), the top end of the two multi-stage electric push rods (207) is fixedly installed on the top surface inside the embedded groove (117), the bottom end of the plurality of air blowing pipes (209) is fixedly penetrated into the inside of the sealing ring (206), a plurality of mounting holes are formed in the bottom of the sealing ring (206), the outer surface of the fixed air pipe (203) is attached to the inner wall of the rubber ring (126), one end of the fixed air pipe (203) is fixedly penetrated into the inside of the air inlet cavity (210) through the sealing ring (206) and the front window (205), the inside of the cabinet (101) is provided with an arc-shaped hole (123) near the window groove (122), the air suction cover (307) is fixedly installed on one side of the outer surface of the arc-shaped protective plate (301), the inside of the arc-shaped protective plate (301) is in communication with the inside of the air suction cover (307) through a circular hole, and the outer surface of the arc-shaped protective plate (301) is movably embedded in the inside of the arc-shaped hole (123).

2. The biological safety cabinet detector of claim 1, wherein: The rotating assembly (4) comprises a forward and reverse motor (401), the output end of the forward and reverse motor (401) is fixedly installed with a rotating rod (402), the outer surface of the rotating rod (402) is fixedly installed with four fixed rods (403), the bottom end of the four fixed rods (403) is fixedly installed on the outer surface of the arc-shaped protective plate (301), the outer surface of the forward and reverse motor (401) is fixedly installed on one side inside the cabinet (101), and one end of the rotating rod (402) is movably embedded on the other side inside the cabinet (101).

3. The biological safety cabinet detector of claim 1, wherein: The microorganism detection assembly (5) comprises a liquid pump (511) and two fixed cylinders (501), the inside of the two fixed cylinders (501) is movably embedded with a piston rod (502), one end of the two piston rods (502) is fixedly installed with a detection block (503), the outer surface of one side of the detection block (503) is fixedly installed with a microorganism detection sensor (504), the outer surface of one end of the two fixed cylinders (501) is fixedly connected with a connecting pipe (506), one end of the two connecting pipes (506) is fixedly connected with a spray pipe (505), the outer surface of the two spray pipes (505) is fixedly connected with a plurality of atomizing nozzles (508), and the outer surface of the two connecting pipes (506) is provided with a micro electromagnetic valve (507).

4. The biological safety cabinet detector of claim 3, wherein: The input end of the liquid pump (511) is fixedly connected with a liquid suction pipe (513), the output end of the liquid pump (511) is fixedly connected with a three-way pipe (512), two ends of the three-way pipe (512) are fixedly connected with third hoses (515), the outer surfaces of the two ends of the three-way pipe (512) are provided with intelligent electromagnetic valves (514), one end of each of the two third hoses (515) is fixedly connected with a liquid inlet pipe (516), one end of each of the two liquid inlet pipes (516) is fixedly connected with the outer surface of one end of the two fixed cylinders (501), one end of each of the two liquid inlet pipes (516) is fixedly penetrated into the inside of the arc-shaped protection plate (301), the inside of the cabinet (101) is fixedly installed with a liquid storage tank (509) close to the bottom surface of the rear wall, the rear surface of the liquid storage tank (509) is fixedly connected with a filling pipe (510), one end of the filling pipe (510) is fixedly penetrated into the rear surface of the cabinet (101), one end of the liquid suction pipe (513) is fixedly penetrated into the inside of the liquid storage tank (509).

5. The biological safety cabinet detector of claim 4, wherein: The liquid pump (511) is installed on the bottom surface of the inside of the cabinet (101) through an auxiliary plate, the outer surfaces of the two fixed cylinders (501) are fixedly installed at the corners of the inside of the arc-shaped protection plate (301), the inside of the detection block (503) is movably embedded with a supporting rod (517), both ends of the supporting rod (517) are fixedly installed on one side of the inside of the arc-shaped protection plate (301) close to the circular hole, the bottoms of the two spray pipes (505) are fixedly installed on the inner wall of the arc-shaped protection plate (301), the bottom of the emergency air suction fan (303) is fixedly installed on the top of the liquid storage tank (509), and the outer surface of the T-shaped pipe (304) is installed on the edge of the top of the liquid storage tank (509) through an auxiliary block.

6. The biological safety cabinet detector of claim 5, wherein: A temperature and humidity sensor (103) is arranged on one side of the inside of the operation cabinet (102), an operation panel (105) and an alarm (106) are sequentially arranged on the front surface of the cabinet (101), illumination lamps (115) are arranged at the two corners of the top surface of the inside of the operation cabinet (102), a ultraviolet lamp (116) is arranged on the rear wall of the inside of the operation cabinet (102), a first filter box body (109) is fixedly installed on the top of the operation cabinet (102), a first high-efficiency filter (114) is arranged in the first filter box body (109), and a supply air fan (110) and an exhaust air fan (112) are fixedly installed on the top of the first filter box body (109).

7. The biological safety cabinet detector of claim 6, wherein: The input end of the air supply fan (110) is fixedly connected with an air inlet pipeline (111), the top end of the air inlet pipeline (111) is fixedly penetrated into the top of the cabinet (101), the output end of the air supply fan (110) is fixedly connected with an air supply pipe (121), one end of the air supply pipe (121) is fixedly connected with the top of the first filter box (109), the output end of the air exhaust fan (112) is fixedly connected with an air exhaust pipeline (113), the top end of the air exhaust pipeline (113) is fixedly connected with a second filter box (119), the inside of the second filter box (119) is provided with a second high-efficiency filter (120), and the top of the second filter box (119) is fixedly connected with the top surface of the inside of the cabinet (101) close to the air outlet.

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