Sterilization device for impact sampler

Abstract

The present invention relates to the field of microbial technology, and in particular to an impact sampler high-efficiency sterilization device, comprising a box body, the box body is composed of a sterilization chamber and a configuration chamber, a sterilization cylinder is vertically arranged in the box body, a top cover is arranged at the upper end of the sterilization cylinder, a sterilization unit and a refrigeration system are arranged in the sterilization cylinder, and the configuration chamber is hollow inside, and an ozone generation system and an exhaust gas treatment system are arranged in the box body. The impact sampler sterilization device described in the present invention uses a low-temperature ultraviolet-ozone combined method to disinfect and sterilize the sampler, has a fast disinfection and sterilization speed, and significantly improves the disinfection and sterilization effect compared with traditional disinfection and sterilization methods, and will not cause the sampling hole of the sampler to be blocked.

Description

Technical Field

[0001] The invention relates to the field of microbial technology, in particular to a sterilizing device for an impact sampler. Background Art

[0002] In the process of air microbial experimental research, a large number of experimental samples are often collected. The sampler used to collect microorganisms is an important part of the experimental process. During the sampling process, due to the repeatability of sampling, the sampler needs to be disinfected and sterilized many times to improve the accuracy and reliability of the experiment.

[0003] The impact sampler is a common type of air microbial sampler. According to the sampling requirements, the sampler is often divided into single-stage, six-stage, and eight-stage. The corresponding sampling plates with different apertures can collect microorganisms of different particle sizes. It has been widely recognized and applied in air microbial research. At present, in the routine operation process, the operator needs to disinfect each sampling plate with alcohol when completing a single sampling. During the disinfection process, it is still under external air conditions and is susceptible to contamination by other microorganisms in the surrounding medium. In addition, alcohol can be wiped and disinfected on the outer surface of the sampling plate, but the disinfection effect on the densely distributed sampling holes on the sampling plate is not good, and even excessive alcohol remains in the sampling holes, causing blockage, which greatly affects the sampling effect. Therefore, there is an urgent need for a sterilization device that can sterilize the impact sampler. Summary of the invention

[0004] In view of this, the present invention provides a sterilization device for an impact sampler.

[0005] The present invention provides a sterilization device for an impact sampler, comprising a box body, which consists of a sterilization chamber and a configuration chamber. A first notch is provided at the upper end of the sterilization chamber, in which a sterilization cylinder is vertically arranged. The upper end of the sterilization cylinder passes through the first notch and is flush with the upper end of the sterilization chamber. The sterilization cylinder is used to place a sampler. A top cover is provided at the upper end of the sterilization cylinder, and the top cover is used to open or close the upper end of the sterilization cylinder. A sterilization unit and a refrigeration system are arranged in the sterilization cylinder. The sterilization unit is used to sterilize the sterilization cylinder, and the refrigeration system is used to cool the sterilization cylinder. The configuration chamber is hollow inside, and an ozone generation system and a waste gas treatment system are arranged therein. A first air inlet and an air outlet are provided in the sterilization cylinder. The ozone generation system is connected to the first air inlet to input ozone into the sterilization cylinder. The waste gas treatment system is connected to the third air inlet and the air outlet to collect waste gas in the sterilization cylinder.

[0006] Furthermore, it also includes a control system, which includes a controller, an ozone concentration detection unit, an air pressure detection unit, a temperature detection unit, an ultraviolet illuminometer and a control panel, the ozone concentration detection unit is used to detect the ozone concentration in the sterilization cylinder, the air pressure detection unit is used to detect the air pressure value in the sterilization cylinder, the temperature detection unit is used to detect the temperature value in the sterilization cylinder, the ultraviolet illuminometer is used to detect the ultraviolet radiation intensity in the sterilization cylinder, and the control panel is arranged on the box body, and the ozone concentration detection unit, the air pressure detection unit, the temperature detection unit, the ultraviolet illuminometer, the control panel, the refrigeration system, the sterilization unit, the ozone generation system and the exhaust gas treatment system are electrically connected.

[0007] Furthermore, a driving unit is provided in the sterilization chamber, and a rotating shaft is vertically provided in the sterilization cylinder. The lower end of the rotating shaft passes through the bottom of the sterilization cylinder and is transmission-connected to the driving unit. The driving unit drives the rotating shaft to rotate. A plurality of clamping assemblies are provided on the rotating shaft, and the plurality of clamping assemblies are respectively arranged at intervals up and down along the axial direction of the rotating shaft. The clamping assemblies are detachably connected to the rotating shaft, and the clamping assemblies are used to clamp the sampler. The driving unit is electrically connected to the controller.

[0008] Furthermore, the ozone generating system includes an ozone generator and an ozone storage tank, the ozone generator and the first air inlet are both connected to the ozone storage tank, the ozone generator is used to prepare ozone, the ozone storage tank is used to store the ozone prepared by the ozone generator and transport the ozone to the first air inlet, a second solenoid valve is provided at the air outlet end of the ozone storage tank, and the ozone generator and the second solenoid valve are electrically connected to the controller.

[0009] Furthermore, the waste gas treatment system includes an air filter and an air collecting tank, the configuration chamber is provided with a second air inlet connected to the interior thereof, the air inlet end of the air filter is connected to the second air inlet, and the air outlet end thereof is connected to the third air inlet, the air filter is used to transport clean gas into the sterilization cylinder, the air inlet end of the air collecting tank is provided with an exhaust unit and a first solenoid valve connected to the air outlet, the exhaust unit is used to exhaust the waste gas in the sterilization cylinder into the air collecting tank, and the air filter, the exhaust unit and the first solenoid valve are all electrically connected to the controller.

[0010] Furthermore, the sterilization cylinder is composed of an inner cylinder and an outer cylinder, both of which are cylindrical structures with hollow interiors and open upper ends, the outer cylinder is vertically arranged in the sterilization chamber, the inner cylinder is coaxially arranged in the outer cylinder, and its upper end is flush with and fixed to the upper end of the outer cylinder, a first cavity is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder, the sterilization unit includes a plurality of ultraviolet lamps, and the plurality of ultraviolet lamps are evenly spaced in the first cavity along the circumference of the inner cylinder, a first sub-air inlet and a first sub-air outlet are provided on the inner cylinder, and a second sub-air inlet and a second sub-air outlet are provided on the outer cylinder, the first sub-air inlet and the second sub-air inlet are connected to form the first air inlet, and the first air outlet is connected to the second air outlet to form the air outlet, and the rotating shaft is vertically arranged in the inner cylinder, and its lower end passes through the bottom of the inner cylinder and the outer cylinder respectively and is transmission-connected to the driving unit.

[0011] Furthermore, the clamping assembly includes a plurality of clamping seats, and the outer circumference of the rotating shaft is provided with fixed seats corresponding to the plurality of clamping assemblies, and each of the fixed seats is horizontally provided with connecting rods corresponding to the plurality of clamping seats, and the plurality of connecting rods are evenly spaced along the circumference of the rotating shaft, and one end of the connecting rods is fixedly connected to the corresponding fixed seat, and the clamping seat is detachably installed on the other end of the corresponding connecting rod, and the clamping seat is used to clamp the sampler.

[0012] The beneficial effects brought about by the technical solution provided by the present invention are: the impact sampler sterilization device described in the present invention uses a low-temperature ultraviolet-ozone combined method to disinfect and sterilize the sampler, which has a fast disinfection and sterilization speed, and compared with the traditional disinfection and sterilization method, the disinfection and sterilization effect is significantly improved, and the sampling hole of the sampler will not be blocked. Secondly, the device has a strong airtightness and waste gas treatment system, which can effectively recycle and treat the waste gas after disinfection and sterilization, and the sterilization process is safe and environmentally friendly; in addition, the sterilization process of the device is fully automatic and intelligent, not only can the sterilization process be observed and understood at any time, but also a variety of sterilization conditions can be set to meet the needs of various sterilization intensities of the sampler, and it also has the advantage of simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an impact sampler sterilization device according to the present invention;

[0014] Figure 2 It is a structural schematic diagram of an impact sampler sterilization device (without a clamping seat) according to the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of an impact sampler sterilization device according to the present invention. DETAILED DESCRIPTION

[0016] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0017] Please refer to Figure 1-3 The embodiment of the present invention provides a sterilization device for an impact sampler, comprising a housing 10, the housing 10 being composed of a sterilization chamber 11 and a configuration chamber 12, the upper end of the sterilization chamber 11 being provided with a first notch (not shown in the figure), a sterilization cylinder being vertically provided therein, the sterilization cylinder being a cylindrical structure with a hollow interior and an open upper end, the upper end of which passes through the first notch and is flush with the upper end of the sterilization chamber 11, the upper end of the sterilization cylinder being provided with a top cover 21, the top cover 21 being used to open or close the upper end of the sterilization cylinder, and the upper end of the sterilization cylinder An electromagnetic lock (not shown in the figure) is provided, and the electromagnetic lock is used to realize the closing and opening of the top cover 21. A driving unit 22 is provided in the sterilization chamber 11, which is specifically arranged at the lower end of the sterilization cylinder. A rotating shaft 23 is vertically provided in the sterilization cylinder. The lower end of the rotating shaft 23 passes through the bottom of the sterilization cylinder and is transmission-connected with the driving unit 22. The driving unit 22 drives the rotating shaft 23 to rotate. A plurality of clamping assemblies are provided on the rotating shaft 23, and the plurality of clamping assemblies are respectively arranged at intervals up and down along the axial direction of the rotating shaft 23. The clamping assembly is continuously connected to the rotating shaft 23, and the clamping assembly is used to clamp the sampler 100. In the present invention, the sampler 100 is an Andersen FA-1 type biological particle sampler. A sterilization unit 40 and a refrigeration system 41 are provided in the sterilization cylinder. The sterilization unit 40 is used to sterilize the sterilization cylinder, and the refrigeration system 41 is used to cool the sterilization cylinder. The configuration chamber 12 is hollow inside, and an ozone generation system, an exhaust gas treatment system and a power supply system (not shown in the figure) are provided therein. The power supply system provides the power required for the operation of the entire device. The configuration chamber 12 is also provided with a charging socket 51, which is electrically connected to the power supply system for an external power supply or charging the power supply system. The sterilization cylinder is provided with a first air inlet 24, a third air inlet 241 and an air outlet 25. The ozone generating system is connected to the first air inlet 24 to input ozone into the sterilization cylinder. The exhaust gas treatment system is connected to the third air inlet 241 and the air outlet 25 to collect the exhaust gas in the sterilization cylinder.

[0018] In the above embodiment, a control system is also included, which includes a controller, an ozone concentration detection unit 30, an air pressure detection unit 31, a temperature detection unit 32, an ultraviolet detection unit 33 and a control panel 34. The ozone concentration detection unit 30 is used to detect the ozone concentration in the sterilization cylinder, the air pressure detection unit 31 is used to detect the air pressure value in the sterilization cylinder, the temperature detection unit 32 is used to detect the temperature value in the sterilization cylinder, the ultraviolet detection unit 33 is used to detect the ultraviolet radiation intensity in the sterilization cylinder, and the control panel 34 is arranged on the box body 10. The ozone concentration detection unit 30, the air pressure detection unit 31, the temperature detection unit 32, the ultraviolet detection unit 33, the control panel 34, the refrigeration system 41, the sterilization unit 40, the drive unit 22, the ozone generation system, the exhaust gas treatment system and the electromagnetic lock are electrically connected.

[0019] In the present invention, the ozone concentration detection unit 30 is an ozone concentration sensor, whose model is MQ-131, the air pressure detection unit 31 is an air pressure sensor, whose model is SPL06-001, the temperature detection unit 32 is a temperature sensor, whose model is WZPK-336, and the ultraviolet detection unit 33 is an ultraviolet amplitude illuminometer. The present invention does not limit the installation positions of the ozone concentration detection unit 30, the air pressure detection unit 31, the temperature detection unit 32 and the ultraviolet detection unit 33, and they can be installed at any position in the sterilization cylinder. Specifically, the air pressure detection unit 31, the temperature detection unit 32 and the ultraviolet detection unit 33 are installed on the top cover 21, and the ozone concentration detection unit 30 is installed in the sterilization cylinder. The control panel 34 is provided with buttons for setting the ozone concentration, ultraviolet intensity and temperature respectively, as well as a "set speed" button for setting the speed of the drive unit, a "waste gas treatment" button for starting the exhaust gas treatment system, a "start sterilization" button, a "prepare ozone" button, and an "open top cover" button. The controller model is an STM32F series single-chip microcomputer. The controller is used to receive the detection information sent by the ozone concentration detection unit 30, the air pressure detection unit 31, the temperature detection unit 32 and the ultraviolet detection unit 33, and send it to the control panel 34 for display. In addition, the controller can also control the speed of the drive unit, and control the electromagnetic lock, the refrigeration system 41, the sterilization unit 40, the ozone generation system and the exhaust gas treatment system to work automatically. Similarly, the inventor does not limit the installation position of the control panel 34. Specifically, it is installed at the top of the configuration room 12.

[0020] In the above embodiment, the sterilization cylinder is composed of an inner cylinder 26 and an outer cylinder 27, and both the inner cylinder 26 and the outer cylinder 27 are cylindrical structures with hollow interiors and open upper ends. The outer cylinder 27 is vertically arranged in the sterilization chamber 11, and the inner cylinder 26 is coaxially arranged in the outer cylinder 27, and its upper end is flush with the upper end of the outer cylinder 27, and is connected and fixed to the upper end of the outer cylinder 27 through a fixing ring. A first cavity is formed between the outer wall of the inner cylinder 26 and the inner wall of the outer cylinder 27, and the sterilization unit 40 includes a plurality of ultraviolet lamps, and the plurality of ultraviolet lamps are evenly spaced in the first cavity along the circumference of the inner cylinder 26. The inner cylinder 26 is provided with a first sub-air inlet (not shown in the figure), a first sub-air outlet (not shown in the figure) and a first sub-air outlet (not shown in the figure). There are three sub-air inlets (not shown in the figure), and the outer cylinder 27 is provided with a second sub-air inlet (not shown in the figure), a second sub-air outlet (not shown in the figure) and a fourth sub-air inlet (not shown in the figure). The first sub-air inlet is connected to the second sub-air inlet to form the first air inlet 24, the third sub-air inlet is connected to the fourth sub-air inlet to form the third air inlet 241, the first sub-air outlet is connected to the second sub-air outlet to form the air outlet 25, the rotating shaft 23 is vertically arranged in the inner cylinder 26, and its lower end passes through the bottom of the inner cylinder 26 and the outer cylinder 27 respectively, and the connection between the rotating shaft 23 and the inner cylinder 26 and the outer cylinder 27 is provided with a silicone rubber sealing ring 28 to prevent ozone leakage.

[0021] In the present invention, the outer cylinder 27 is made of stainless steel to avoid oxidation by ozone and prolong the service life; the inner cylinder 26 is made of quartz glass, which can transmit ultraviolet light and is easy to clean. The ozone concentration detection unit 30 is installed on the inner wall of the inner cylinder 26.

[0022] In the above embodiment, the clamping assembly includes four clamping seats 29, and the outer periphery of the rotating shaft 23 is provided with a fixed seat 291 corresponding to the multiple clamping assemblies. The fixed seat 291 is horizontally provided with a connecting rod 292 corresponding to the four clamping seats 29, and the multiple connecting rods 292 are evenly spaced along the circumference of the rotating shaft 23, one end of which is fixedly connected to the corresponding fixed seat 291, and the clamping seat 29 is detachably installed on the other end of the corresponding connecting rod 292, and the clamping seat 29 is used to clamp the sampler 100.

[0023] In the present invention, the shape of the fixing seat 291 is not limited, and it can be a cylindrical structure, a cubic structure or a rectangular parallelepiped structure. The structure of the clamping seat 29 is also not limited. Any clamping seat 29 that can realize the clamping function of the sampler 100 in the prior art can be used as a specific embodiment of the clamping seat 29 in the present invention. Specifically, the clamping seat 29 in the present invention is a clamping seat 29 of a clamp structure. The clamping seat 29 of the clamp structure can realize a stable clamping of the sampler 100, prevent the sampler 100 from being separated from the clamping seat 29, and reduce the failure rate of the device. In order to increase the friction between the sampler 100 and the clamping seat 29, the inner walls of the upper and lower clamping rings of the clamping seat 29 are provided with anti-slip pads. The detachable connection between the clamping seat 29 and the corresponding connecting rod 292 is a threaded connection, and the threaded connection structure has the advantages of easy operation and low implementation cost.

[0024] In the above embodiment, the ozone generating system includes an ozone generator 50 and an ozone storage tank 51. The ozone generator 50 and the first air inlet 24 are both connected to the ozone storage tank 51 through a pipeline. The ozone generator 50 is used to prepare ozone. The ozone storage tank 51 is used to store the ozone prepared by the ozone generator 50 and transport the ozone to the first air inlet 24. A second solenoid valve (not shown in the figure) is provided at the air outlet end of the ozone storage tank 51. The ozone generator 50 and the second solenoid valve are electrically connected to the controller.

[0025] In the present invention, a pressure sensor node (not shown in the figure) is provided on the inner wall of the ozone storage tank 51, and the pressure sensor node is wirelessly connected to the controller, which is used to detect the pressure value of the gas in the ozone storage tank 51 and send the signal to the controller. After being processed by the controller, the ozone reserve in the ozone storage tank 51 is displayed on the control panel 34. This is a prior art, and the principle of how to detect the reserve of the ozone storage tank 51 by the pressure sensor is not repeated in this application. Before sterilization, by observing the ozone reserve on the control panel 34, when the ozone reserve is less than 30%, press the "prepare ozone" button on the control panel 34, and the controller controls the ozone generator 50 to prepare ozone until the ozone reserve display on the control panel 34 reaches 100%, and the controller controls the ozone generator 50 to turn off. During sterilization, after setting the ozone concentration required for sterilization on the control panel 34, the controller controls the second solenoid valve to open, and the ozone in the ozone storage tank 51 is transported to the sterilization cylinder through the corresponding pipeline. The ozone concentration detection unit 30 monitors the ozone concentration in the sterilization cylinder in real time and transmits it to the controller. When the controller detects that the ozone concentration in the sterilization cylinder reaches the preset value, it controls the second solenoid valve to close.

[0026] In the above embodiment, the waste gas treatment system includes an air filter 60 and an air collecting tank 61. The configuration chamber 12 is provided with a second air inlet 62 connected to the interior thereof. The air inlet end of the air filter 60 is connected to the second air inlet 62 through a pipeline, and the air outlet end thereof is connected to the third air inlet 241 through a pipeline. The air collecting tank 61 is connected to the air outlet 25 through a pipeline, and there is also an exhaust unit and a first solenoid valve on the pipeline connected to the air outlet 25. The exhaust unit is used to extract the waste gas in the sterilization cylinder into the air collecting tank 61 through a pipeline. The air filter 60, the exhaust unit and the first solenoid valve are electrically connected to the controller.

[0027] In the present invention, the air extraction unit is an air extractor, and the air filter 60 is connected to the third air inlet 241 and the second air inlet 62 through a pipeline, which is the prior art. The present invention will not repeat its connection structure. Similarly, the connection structure of the gas collecting tank 61, the air extraction unit and the air outlet 25 is also the prior art. In addition, the configuration chamber 12 is also provided with an exhaust hole 611 connected to the interior thereof, and the outlet end of the gas collecting tank 61 is connected to the exhaust hole 611 through a pipeline, and the ozone gas decomposed by the gas collecting tank 61 is discharged through the exhaust hole 611. When sterilization is completed, press "waste gas treatment" on the control panel 34, the controller controls the air filter 60 to prepare and deliver clean air and open the first solenoid valve, and deliver it to the sterilization cylinder through the ozone storage tank 51. The ozone concentration detection unit 30 monitors the ozone concentration in the sterilization cylinder in real time and transmits it to the controller. When the controller detects that the ozone concentration in the sterilization cylinder drops to 0, the controller controls the air filter 60 to close and starts the exhaust unit to extract the waste gas in the sterilization cylinder into the gas collecting tank 61. At this time, the air pressure detection unit 31 monitors the air pressure in the sterilization cylinder in real time. When the controller detects that the air pressure value in the sterilization cylinder drops to 0, the controller closes the first solenoid valve and opens the electromagnetic lock.

[0028] In the present invention, in order to avoid mutual influence between the ozone generator 50, the ozone storage tank 51, the air filter 60, the gas collecting tank 61 and the power system during operation, the configuration chamber 12 is divided into independent chambers by a plurality of partitions 121, and the ozone generator 50, the ozone storage tank 51, the air filter 60, the gas collecting tank 61 and the power system are independently arranged in the corresponding chambers.

[0029] In the present invention, the function of the refrigeration system 41 is to lower the temperature in the sterilization cylinder and provide low temperature conditions for ozone disinfection and sterilization. The present invention does not limit the structure of the refrigeration system 41. Any refrigeration device that can reduce the temperature of the sterilization cylinder in the prior art can be used as a specific embodiment of the refrigeration system 41 in the present invention. Specifically, the refrigeration system 41 in the present invention is a semiconductor refrigeration sheet, which is arranged in the first chamber.

[0030] In the present invention, before sterilization, after the preset temperature is input through the control panel 34, the controller controls the refrigeration system 41 to start to cool the sterilization cylinder. The temperature detection unit 32 monitors the temperature in the sterilization cylinder in real time and transmits it to the controller. When the controller detects that the temperature in the sterilization cylinder reaches the preset value, the controller controls the refrigeration system 41 to shut down.

[0031] The working principle of the impact sampler sterilization device described in the present invention is as follows: before sterilizing the sampler 100 to be sterilized, turn on the device, observe the ozone reserve displayed on the control panel 34, judge whether ozone needs to be prepared for storage, understand whether the device is in normal working condition, and make preparations before sterilization.

[0032] Open the top cover 21, fix the sampler 100 to be sterilized in the clamping seat 29, close the top cover 21, and set the sterilization conditions through the control panel 34: such as the ozone concentration in the sterilization chamber 11, the ultraviolet light intensity, the rotation speed of the drive unit, the freezing temperature and the sterilization time. After the setting is completed, press "Start Sterilization", the controller starts the electromagnetic lock to close the top cover 21, and enter the sterilization stage at the same time. During the sterilization stage, the ozone concentration value, air pressure value, ultraviolet radiation intensity and temperature value in the sterilization cylinder can be viewed in real time through the control panel 34. When the various parameter values ​​in the sterilization cylinder appear, they can be reset or stopped at any time.

[0033] After sterilization, press "waste gas treatment", the controller controls the air filter 60, the first solenoid valve and the exhaust unit to automatically open, the air filter 60 starts to work and delivers clean air to the sterilization cylinder, and then the exhaust unit delivers the waste gas remaining in the sterilization cylinder to the gas collecting tank 61 through the air outlet 25. The remaining ozone will be completely decomposed by oxygen after a period of time and then discharged from the exhaust port 611.

[0034] When the air pressure value displayed on the control panel 34 is 0, press "Open Top Cover", the controller automatically closes the sterilization unit and the electromagnetic lock, and the top cover 21 can be opened to take out the sterilized sampler 100, thereby completing the sterilization.

[0035] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0036] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sterilization device for an impact sampler, characterized in that: The invention comprises a box (10) and a sampler (100), wherein the box (10) is composed of a sterilization chamber (11) and a configuration chamber (12), wherein a first notch is provided at the upper end of the sterilization chamber (11), and a sterilization cylinder is vertically provided therein, wherein the upper end of the sterilization cylinder passes through the first notch and is flush with the upper end of the sterilization chamber (11), wherein the sterilization cylinder is used to place the sampler (100), wherein a top cover (21) is provided at the upper end of the sterilization cylinder, wherein the top cover (21) is used to open or close the upper end of the sterilization cylinder, wherein a sterilization unit (40) and a refrigeration system (41) are provided in the sterilization cylinder, wherein the sterilization The unit (40) is used to sterilize the sterilization cylinder, the refrigeration system (41) is used to cool the sterilization cylinder, the interior of the configuration chamber (12) is hollow, and an ozone generation system and a waste gas treatment system are arranged therein, the sterilization cylinder is provided with a first air inlet (24), a third air inlet (241) and an air outlet (25), the ozone generation system is connected to the first air inlet (24) to input ozone into the sterilization cylinder, and the waste gas treatment system is connected to the third air inlet (241) and the air outlet (25) to collect the waste gas in the sterilization cylinder; A driving unit (22) is provided in the sterilization chamber (11), a rotating shaft (23) is vertically provided in the sterilization cylinder, the lower end of the rotating shaft (23) passes through the bottom of the sterilization cylinder and is in transmission connection with the driving unit (22), the driving unit (22) drives the rotating shaft (23) to rotate, a plurality of clamping assemblies are provided on the rotating shaft (23), the plurality of clamping assemblies are respectively arranged at intervals up and down along the axial direction of the rotating shaft (23), the clamping assemblies are detachably connected to the rotating shaft (23), and the clamping assemblies are used to clamp the sampler (100); The sterilizing cylinder is composed of an inner cylinder (26) and an outer cylinder (27), and the inner cylinder (26) and the outer cylinder (27) are both cylindrical structures with a hollow interior and an open upper end. The outer cylinder (27) is vertically arranged in the sterilizing chamber (11), and the inner cylinder (26) is coaxially arranged in the outer cylinder (27), and its upper end is flush with and fixed to the upper end of the outer cylinder (27). A first cavity is formed between the outer wall of the inner cylinder (26) and the inner wall of the outer cylinder (27), and the sterilizing unit (40) includes a plurality of ultraviolet lamps, and the plurality of ultraviolet lamps are evenly spaced and arranged in the first cavity along the circumference of the inner cylinder (26); The clamping assembly comprises a plurality of clamping seats (29), the outer circumference of the rotating shaft (23) is provided with a fixing seat (291) corresponding to the plurality of clamping assemblies, each of the fixing seats (291) is horizontally provided with a connecting rod (292) corresponding to the plurality of clamping seats (29), and the plurality of connecting rods (292) are evenly spaced along the circumference of the rotating shaft (23), one end of each connecting rod is fixedly connected to the corresponding fixing seat (291), the clamping seat (29) is detachably mounted on the other end of the corresponding connecting rod (292), the clamping seat (29) is used to clamp the sampler (100), and the clamping seat (29) is a clamp structure; Silicon rubber sealing rings (28) are provided at the connection points between the rotating shaft (23) and the inner cylinder (26) and the outer cylinder (27).

2. The impact sampler sterilization device according to claim 1, characterized in that: The invention also comprises a control system, the control system comprising a controller, an ozone concentration detection unit (30), an air pressure detection unit (31), a temperature detection unit (32), an ultraviolet detection unit (33) and a control panel (34); the ozone concentration detection unit (30) is used to detect the ozone concentration in the sterilizing cylinder; the air pressure detection unit (31) is used to detect the air pressure value in the sterilizing cylinder; the temperature detection unit (32) is used to detect the temperature value in the sterilizing cylinder; the ultraviolet detection unit (33) is used to detect the ultraviolet radiation intensity in the sterilizing cylinder; the control panel (34) is arranged on the box body (10); the ozone concentration detection unit (30), the air pressure detection unit (31), the temperature detection unit (32), the ultraviolet detection unit (33), the control panel (34), the refrigeration system (41), the sterilization unit (40), the ozone generation system and the waste gas treatment system are electrically connected.

3. The impact sampler sterilization device according to claim 2, characterized in that: The driving unit (22) is electrically connected to the controller.

4. The impact sampler sterilization device according to claim 2, characterized in that: The ozone generating system comprises an ozone generator (50) and an ozone storage tank (51); the ozone generator (50) and the first air inlet (24) are both connected to the ozone storage tank (51); the ozone generator (50) is used to prepare ozone; the ozone storage tank (51) is used to store the ozone prepared by the ozone generator (50) and transport the ozone to the first air inlet (24); a second solenoid valve is provided at the air outlet end of the ozone storage tank (51); and the ozone generator (50) and the second solenoid valve are electrically connected to the controller.

5. The impact sampler sterilization device according to claim 2, characterized in that: The waste gas treatment system comprises an air filter (60) and an air collecting tank (61); the configuration chamber (12) is provided with a second air inlet (62) connected to the interior thereof; the air inlet end of the air filter (60) is connected to the second air inlet (62), and the air outlet end thereof is connected to the third air inlet (241); the air filter (60) is used to transport clean gas into the sterilization cylinder; the air inlet end of the air collecting tank (61) is provided with an exhaust unit and a first solenoid valve, which are connected to the air outlet (25); the exhaust unit is used to exhaust the waste gas in the sterilization cylinder into the air collecting tank (61); the air filter (60), the exhaust unit and the first solenoid valve are all electrically connected to the controller.

6. The impact sampler sterilization device according to claim 3, characterized in that: The inner cylinder (26) is provided with a first sub-air inlet, a first sub-air outlet and a third sub-air inlet, and the outer cylinder (27) is provided with a second sub-air inlet, a second sub-air outlet and a fourth sub-air inlet. The first sub-air inlet is connected to the second sub-air inlet to form the first air inlet (24), the third sub-air inlet is connected to the fourth sub-air inlet to form the third air inlet (241), and the first sub-air outlet is connected to the second sub-air outlet to form the air outlet (25). The rotating shaft (23) is vertically arranged in the inner cylinder (26), and its lower end passes through the bottom of the inner cylinder (26) and the bottom of the outer cylinder (27) to be drivingly connected to the driving unit (22).

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