New pollutant biological toxicology detection device and method

Abstract

The invention relates to the technical field of air detection, in particular to a new pollutant biological toxicology detection device and method.The new pollutant biological toxicology detection device comprises a detection box and a lifting placement assembly, a detection cavity and a mounting cavity are formed in the detection box, a sensor is arranged in the detection cavity, a first valve control exhaust part is arranged outside the detection box, and the lifting placement assembly comprises a sealing pipe and a lifting supporting vessel; a hemispherical opening and closing cover is arranged at the upper end of the sealing pipe, the opening and closing cover comprises two symmetrical curved surface covers, a rotary driving mechanism is arranged on the sealing pipe, the rotary driving mechanism comprises a lifting cylinder, a taking and placing opening is formed in the sealing pipe, and a second valve control exhaust part is arranged at the lower end of the sealing pipe. The volume of the sealing pipe is smaller than that of the detection cavity, and the temperature in the sealing pipe is lower than that in the detection cavity, so that the temperature of pollutants falling into the sealing pipe can be rapidly reduced, the time for waiting for cooling of the pollutants is shortened, and poison gas in the sealing pipe can be rapidly discharged and recycled in the process of waiting for cooling of the pollutants.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air detection, in particular to a new pollutant biological toxicology detection device and method. BACKGROUND

[0002] Biological toxicology detection is a scientific means to evaluate the toxic effects of toxic substances on organisms and their action mechanisms, aiming to reveal the degree of harm, action target and potential risk of toxic substances. For some new pollutants with volatile toxic gases such as perfluorinated compounds, polychlorinated biphenyls and dioxins, they will volatilize and diffuse toxic gases under high temperature or normal temperature conditions. Therefore, in order to better reduce the pollution of new pollutants to the environment and the harm to the human body, it is necessary to conduct toxicology detection on new pollutants. The existing patent with the publication number CN110927053B discloses a volatile detection equipment for toxic substances of environmental protection materials, but the above-mentioned patent still has the following defects: Firstly, during the toxicology detection process, the pollutants need to be placed in the container, and the pollutants in the container need to be taken out after detection. The above-mentioned patent needs to first disassemble the barrel cover, and then take and place the pollutants. Since the barrel cover is sealed and connected with the barrel body in order to prevent toxic gas from escaping from the barrel body, the frequent disassembly and assembly of the barrel cover will cause the sealing element between the barrel cover and the barrel body to loosen, and finally cause the pollutants to escape into the detection environment. Secondly, since some pollutants have volatility under high temperature environment, the pollutants need to be cooled when taken out, and the toxic gas in the detection device needs to be accelerated to be discharged and recycled. The barrel body of the above-mentioned patent has a certain volume. When the toxic gas escapes into the barrel body, the toxic gas cannot be accelerated to be discharged and recycled. Therefore, when the pollutants are taken out, part of the toxic gas will definitely escape into the detection environment, finally causing harm to the detection personnel.

[0003] Therefore, it is necessary to provide a new pollutant biological toxicology detection device and method to solve the above-mentioned problems. SUMMARY

[0004] Therefore, it is necessary to provide a new pollutant biological toxicology detection device and method to solve the above-mentioned problems.

[0005] In order to solve the prior art problems, the technical scheme that the application adopts is as follows: a new pollutant biological toxicology detection device, which comprises a detection box and a lifting placement assembly, a sealed detection cavity and an installation cavity communicating with the outside are arranged in the detection box, the detection cavity and the installation cavity are arranged in an upper and lower distribution mode, a horizontal partition plate is arranged between the detection cavity and the installation cavity, a sensor is arranged in the detection cavity, a first valve control exhaust part leading to the detection cavity is arranged outside the detection box, the lifting placement assembly comprises a sealing pipe and a lifting tray, the sealing pipe is vertically arranged in the installation cavity, the upper end of the sealing pipe penetrates through the partition plate upwards and extends into the detection cavity, the upper end of the sealing pipe is of an open structure and is provided with a hemispherical opening and closing cover, the opening and closing cover comprises two symmetrical curved covers, each curved cover is hingedly connected with the sealing pipe, a rotary driving mechanism is arranged on the sealing pipe, the rotary driving mechanism comprises a lifting cylinder for pulling the two curved covers to be combined towards each other by descending, a taking and placing opening capable of being opened and closed is arranged on the sealing pipe in the installation cavity, and a second valve control exhaust part is arranged at the lower end of the sealing pipe.

[0006] Further, two groups of connecting pieces corresponding to the curved covers are fixedly arranged on the outer wall of the upper end of the sealing pipe, each group of connecting pieces comprises two symmetrical lugs, a horizontal rotating pin is rotatably arranged between the two lugs, and a curved connecting rod is formed on the outer wall of each curved cover, one end of the curved connecting rod is fixedly connected with the rotating pin.

[0007] Further, the rotary driving mechanism further comprises two groups of symmetrical transmission pieces, the lifting cylinder is coaxially arranged in the upper end of the sealing pipe, two symmetrical limiting strips are formed on the outer wall of the lifting cylinder, each limiting strip is vertical, two limiting grooves matched with the limiting strips are formed on the outer wall of the upper end of the sealing pipe, each group of transmission pieces comprises a gear rack and a gear, the gear rack is vertically and fixedly connected with the limiting strip, the gear is coaxially and fixedly connected with the rotating pin, and the gear is engaged with the gear rack.

[0008] Further, a lifting mechanism is arranged in the sealing pipe, the lifting mechanism comprises a lifting seat and a gas cylinder, the lifting seat comprises a columnar seat and a rotating cylinder, the rotating cylinder is coaxially arranged in the sealing pipe, the columnar seat is coaxially and fixedly arranged at the top of the rotating cylinder, the gas cylinder is vertically fixedly arranged in the lower end of the sealing pipe, the output end of the gas cylinder is vertically and rotatably connected with the rotating cylinder, and the lifting tray is fixedly arranged on the top of the columnar seat by magnetic attraction.

[0009] Further, the rotating cylinder is located below the lifting cylinder, the columnar seat is located in the lifting cylinder, a plurality of circumferential arrayed stop blocks are formed on the inner wall of the lifting cylinder and close to the bottom of the lifting cylinder, the outer diameter of the columnar seat is consistent with the inner diameter of the lifting cylinder, and a plurality of avoiding straight grooves for the stop blocks to pass through are formed on the outer wall of the columnar seat.

[0010] Further, the outer wall of the rotating cylinder is provided with a plurality of special-shaped sliding grooves arranged in a circle, each special-shaped sliding groove is composed of an arc-shaped groove, a first straight groove and a second straight groove, one end of the arc-shaped groove is high and the other end is low, the lower end of the first straight groove is communicated with the high end of the arc-shaped groove, the upper end of the first straight groove penetrates the top of the rotating cylinder, the upper end of the second straight groove is communicated with the low end of the arc-shaped groove, and the lower end of the second straight groove penetrates the bottom of the rotating cylinder, the outer wall of the sealing pipe is fixedly provided with two limiting pins, and one end of each limiting pin penetrates into the sealing pipe and is inserted into the corresponding special-shaped sliding groove.

[0011] Further, the first valve-controlled exhaust member includes a first exhaust pipe and a first electromagnetic valve, the first exhaust pipe is horizontally fixed to the detection box and is communicated with the detection cavity, and the first electromagnetic valve is arranged on the first exhaust pipe.

[0012] Further, the second valve-controlled exhaust member includes a second exhaust pipe and a second electromagnetic valve, the second exhaust pipe is fixed to the sealing pipe, one end of the second exhaust pipe is communicated with the inner cavity of the sealing pipe, the other end of the second exhaust pipe penetrates out of the detection box, and the second electromagnetic valve is arranged on the second exhaust pipe.

[0013] Further, the sealing pipe is provided with an arc-shaped cover plate covering the taking and placing opening, and one end of the arc-shaped cover plate is hingedly connected to the outer wall of the sealing pipe.

[0014] A new pollutant biological toxicity detection method, the detection method comprises the following steps: S1, the pollutant to be detected is placed into the lifting tray through the taking and placing opening, and the taking and placing opening is closed; S2, the lifting tray rises, and the lifting cylinder rises to drive the two curved covers to rotate reversely to open the upper end of the sealing pipe; S3, the lifting tray extends into the detection cavity from the upper end of the sealing pipe, and the volatile toxic gas is detected through the sensor; S4, after detection, the lifting tray starts to descend, and the lifting cylinder descends to drive the two curved covers to rotate towards each other to block the upper end of the sealing pipe.

[0015] Compared with the prior art, the present application has the following beneficial effects: Firstly, the device is used for detecting the volatile toxic gas in the new pollutant to prevent the new pollutant from polluting the air, the taking and placing opening can be opened and closed to realize taking and placing the pollutant in the lifting tray, the taking and placing process is simple, and the toxic gas in the sealing pipe is discharged in advance when taking and placing, so that the toxic gas can be effectively prevented from escaping into the detection environment to harm the detection personnel. Secondly, when the toxicological detection is carried out, the lifting tray will be lifted into the detection cavity, the toxic gas emitted by the pollutants in the lifting tray will diffuse into the detection cavity, when the detection is completed, the lifting tray will be lowered into the sealed tube, and at this time, the two curved covers will be combined to form the opening and closing cover for sealing the upper end of the sealed tube, since the volume of the sealed tube is smaller than that of the detection cavity, and the temperature in the sealed tube is lower than that in the detection cavity, the pollutants lowered into the sealed tube can quickly reduce the temperature, not only shortening the waiting time for the pollutants to cool down, but also in the process of waiting for the pollutants to cool down, the toxic gas in the sealed tube can be quickly discharged for recycling, so that when the taking and placing opening is opened, the toxic gas can be effectively prevented from diffusing into the detection environment to cause harm to the detection personnel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the three-dimensional structure of the present application Figure 1 ; Figure 2 is a schematic view of the three-dimensional structure of the present application Figure 2 ; Figure 3 is a schematic view of the three-dimensional structure of the present application Figure 4 is Figure 3 the partial enlarged view indicated by A1 in FIG. 1; Figure 5 is a schematic view of the three-dimensional structure of the present application Figure 6 is Figure 5 the partial enlarged view indicated by A2 in FIG. 1; Figure 7 is a schematic view of the three-dimensional structure of the present application Figure 8 is a schematic view of the three-dimensional structure of the present application Figure 9 is a schematic view of the three-dimensional structure of the present application Figure 10 is a schematic view of the three-dimensional structure of the present application Figure 11 is Figure 10 the partial enlarged view indicated by A3 in FIG. 1; Figure 12 is a schematic view of the three-dimensional structure of the present application Figure 13 is a schematic view of the three-dimensional structure of the present application

[0017] The figure marks are: 1, detection box; 2, detection cavity; 3, installation cavity; 4, partition; 5, sensor; 6, sealing tube; 7, lifting tray; 8, open-close cover; 9, curved cover; 10, lifting cylinder; 11, taking and placing opening; 12, lug; 13, rotating pin; 14, curved connecting rod; 15, limiting strip; 16, limiting groove; 17, rack; 18, gear; 19, lifting seat; 20, air cylinder; 21, columnar seat; 22, rotating cylinder; 23, stop block; 24, avoiding straight groove; 25, arc-shaped groove; 26, first straight groove; 27, second straight groove; 28, limiting pin; 29, first exhaust pipe; 31, first electromagnetic valve; 32, second exhaust pipe; 33, second electromagnetic valve; 34, arc-shaped cover plate; 35, control panel; 36, display screen; 37, rubber strip; 38, circular baffle. DETAILED DESCRIPTION

[0018] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application will be described in further detail below in combination with the drawings and specific embodiments.

[0019] Reference Figures 1 to 13 The figure marks are: 1, detection box; 2, detection cavity; 3, installation cavity; 4, partition; 5, sensor; 6, sealing tube; 7, lifting tray; 8, open-close cover; 9, curved cover; 10, lifting cylinder; 11, taking and placing opening; 12, lug; 13, rotating pin; 14, curved connecting rod; 15, limiting strip; 16, limiting groove; 17, rack; 18, gear; 19, lifting seat; 20, air cylinder; 21, columnar seat; 22, rotating cylinder; 23, stop block; 24, avoiding straight groove; 25, arc-shaped groove; 26, first straight groove; 27, second straight groove; 28, limiting pin; 29, first exhaust pipe; 31, first electromagnetic valve; 32, second exhaust pipe; 33, second electromagnetic valve; 34, arc-shaped cover plate; 35, control panel; 36, display screen; 37, rubber strip; 38, circular baffle.

[0020] Before detection, the lifting tray 7 is lowered to the taking and placing opening 11, at this time the taking and placing opening 11 is opened, and the pollutants are placed on the lifting tray 7, when the pollutants are placed on the lifting tray 7, the lifting tray 7 is lifted and gradually approaches the opening and closing cover 8, in this process, the lifting cylinder 10 is lifted and synchronously drives the two curved covers 9 to rotate reversely, so as to open the upper end of the sealing tube 6, when the upper end of the sealing tube 6 is opened, the lifting tray 7 will pass out from the upper end of the sealing tube 6 and extend into the detection cavity 2, in the actual use process, the detection cavity 2 is provided with an electric heating device (not shown in the figure), the detection box 1 is provided with an analysis system (not shown in the figure), the detection box 1 is provided with a control panel 35 and a display screen 36, the electric heating device is used to improve the temperature in the detection cavity 2, so as to accelerate the volatilization of toxic gas in the pollutants, when the toxic gas diffuses into the detection cavity 2, the sensor 5 arranged in the detection cavity 2 will detect the toxic gas, the sensor 5 will transmit the detected data to the analysis system for analysis (the number of the sensor 5 of the device is several, including but not limited to electrochemical sensor, semiconductor gas sensor and infrared gas sensor), the analyzed data will be displayed through the display screen 36, so as to judge which toxic volatile gas the pollutants contain, when the detection is completed, the lifting tray 7 will be lowered into the sealing tube 6, when the lifting tray 7 is lowered into the sealing tube 6, the lifting cylinder 10 is lowered to drive the two curved covers 9 to approach and combine to form the opening and closing cover 8 for blocking the upper end of the sealing tube 6, after that, the first valve control exhaust member is started to exhaust the toxic gas in the detection cavity 2 to the outside of the detection box 1 for recycling, at the same time, the second valve control exhaust member is started to exhaust the toxic gas in the sealing tube 6 and the toxic gas volatilized from the pollutants to the outside of the detection box 1 for recycling, in this process, since the volume of the sealing tube 6 is smaller than that of the detection cavity 2, and the temperature in the sealing tube 6 is lower than that in the detection cavity 2, the pollutants lowered into the sealing tube 6 can quickly reduce the temperature, not only shortening the waiting time for the pollutants to cool down, but also in the process of waiting for the pollutants to cool down, the toxic gas in the sealing tube 6 is quickly exhausted for recycling, so that when the taking and placing opening 11 is opened, the toxic gas can be effectively prevented from diffusing into the detection environment to harm the detection personnel.

[0021] In order to show how the curved cover 9 is connected with the sealing tube 6, the following features are provided: The outer wall of the upper end of the sealing tube 6 is fixedly provided with two groups of connecting pieces corresponding to the curved cover 9, each group of connecting pieces includes two symmetrical lugs 12, a horizontal rotating pin 13 is rotatably arranged between the two lugs 12, and the outer wall of each curved cover 9 is formed with a curved connecting rod 14, one end of the curved connecting rod 14 is fixedly connected with the rotating pin 13.

[0022] Each curved cover 9 is connected with corresponding rotating pin 13 through curved connecting rod 14, so that two curved covers 9 can rotate towards each other and reverse direction through the action of rotating pin 13, when two curved covers 9 rotate towards each other, two curved covers 9 will merge to form open-close cover 8 which seals the upper end of sealed tube 6, when two curved covers 9 rotate in reverse direction, two curved covers 9 will separate to open the upper end of sealed tube 6.

[0023] In order to show the specific structure of the rotating drive mechanism, the following features are provided: The rotating drive mechanism also includes two sets of transmission members in a symmetrical state, lifting cylinder 10 is coaxially arranged in the upper end of sealed tube 6, two limiting strips 15 in a symmetrical state are formed on the outer wall of lifting cylinder 10, each limiting strip 15 is vertical, two limiting grooves 16 matched with limiting strips 15 are arranged on the outer wall of the upper end of sealed tube 6, each set of transmission members includes rack 17 and gear 18, rack 17 is vertically and fixedly connected with limiting strip 15, gear 18 is coaxially and fixedly connected with rotating pin 13, and gear 18 is engaged with rack 17.

[0024] When lifting cylinder 10 rises in sealed tube 6, lifting cylinder 10 will drive curved cover 9 to rotate outward through the cooperation of rack 17 and gear 18, so that two curved covers 9 will rotate in reverse direction to open the upper end of sealed tube 6, when lifting cylinder 10 descends in sealed tube 6, lifting cylinder 10 will drive curved cover 9 to rotate inward through the cooperation of rack 17 and gear 18, so that two curved covers 9 will rotate towards each other to merge into open-close cover 8 which seals the upper end of sealed tube 6, in actual use, each curved cover 9 is provided with vertical downward rubber strip 37, when two curved covers 9 merge towards each other to form open-close cover 8, each rubber strip 37 will cover corresponding limiting groove 16, so as to prevent toxic gas in detection cavity 2 from flowing into sealed tube 6 through limiting groove 16.

[0025] In order to show how lifting tray 7 rises and falls, the following features are provided: Lifting mechanism is arranged in sealed tube 6, the lifting mechanism includes lifting seat 19 and air cylinder 20, lifting seat 19 includes columnar seat 21 and rotating cylinder 22, rotating cylinder 22 is coaxially arranged in sealed tube 6, columnar seat 21 is coaxially fixed on the top of rotating cylinder 22, air cylinder 20 is vertically fixed in the lower end of sealed tube 6, the output end of air cylinder 20 is vertically and upwardly connected with rotating cylinder 22, lifting tray 7 is fixed on the top of columnar seat 21 through magnetic attraction.

[0026] When the lifting tray 7 is installed on the columnar seat 21, the bottom of the lifting tray 7 and the top of the columnar seat 21 are provided with magnets, so that the lifting tray 7 can be fixed on the top of the columnar seat 21 by magnetic attraction. When the cylinder 20 is started, the cylinder 20 drives the lifting tray 7 to ascend and descend in the sealed pipe 6 through the columnar seat 21. When the two curved covers 9 are reversely rotated to open the upper end of the sealed pipe 6, the lifting tray 7 is driven by the columnar seat 21 to pass out of the upper end of the sealed pipe 6, and finally the lifting tray 7 extends into the detection cavity 2. When the sealed pipe 6 is processed, the circular baffle 38 is coaxially and fixedly connected in the sealed pipe 6 between the cylinder 20 and the rotating cylinder 22, and the inner cavity of the sealed pipe 6 is blocked by the circular baffle 38, so as to avoid the downward diffusion of the toxic gas in the sealed pipe 6, and to accelerate the discharge of the toxic gas in the sealed pipe 6.

[0027] In order to show how the lifting cylinder 10 ascends and descends, the following features are provided: The rotating cylinder 22 is located below the lifting cylinder 10, the columnar seat 21 is located in the lifting cylinder 10, a plurality of circumferentially arranged blocking blocks 23 are formed on the inner wall of the lifting cylinder 10, and each blocking block 23 is close to the bottom of the lifting cylinder 10. The outer diameter of the columnar seat 21 is consistent with the inner diameter of the lifting cylinder 10, and a plurality of avoiding straight grooves 24 are formed on the outer wall of the columnar seat 21 for the blocking blocks 23 to pass through.

[0028] When the output end of the cylinder 20 extends upward, the rotating cylinder 22 will upwardly abut against the lower end of the lifting cylinder 10. Thereafter, with the continuous output of the cylinder 20, the lifting cylinder 10 will ascend and drive the two curved covers 9 to reversely rotate to open the upper end of the sealed pipe 6. When the upper end of the sealed pipe 6 is opened, the lifting tray 7 will pass out of the sealed pipe 6 and extend into the detection cavity 2. After detection is completed, the output end of the cylinder 20 is retracted and drives the lifting tray 7 to descend. During this process, the columnar seat 21 will descend in the lifting cylinder 10. When the bottom of the columnar seat 21 is placed on the plurality of blocking blocks 23, the lifting cylinder 10 will descend together with the columnar seat 21. At the same time, the two curved covers 9 will be driven by the lifting cylinder 10 to merge towards each other to gradually block the upper end of the sealed pipe 6. During the merging process of the two curved covers 9, the rotating seat starts to rotate. At this time, the columnar seat 21 will rotate together with the rotating seat. When the avoiding straight grooves 24 on the columnar seat 21 correspond to the blocking blocks 23 on the inner wall of the lifting cylinder 10, each blocking block 23 will pass through the corresponding avoiding straight groove 24. In this way, the columnar seat 21 will pass out of the lifting cylinder 10 downward. Finally, the cylinder 20 will drive the lifting tray 7 on the columnar seat 21 to descend to the taking and placing opening 11. After the pollutants in the lifting tray 7 are taken and placed, the taking and placing opening 11 is closed, the cylinder 20 drives the columnar seat 21 to pass into the lifting cylinder 10 upward. During this process, the rotating cylinder 22 rotates, and finally the avoiding straight grooves 24 on the columnar seat 21 intersect with the blocking blocks 23 in the lifting cylinder 10.

[0029] In order to show how the rotating seat rotates, the following features are set: The outer wall of the rotating cylinder 22 is provided with a plurality of special-shaped sliding grooves arranged in a circle, each special-shaped sliding groove is composed of an arc-shaped groove 25, a first straight groove 26 and a second straight groove 27, one end of the arc-shaped groove 25 is high and the other end is low, the lower end of the first straight groove 26 is connected with the high end of the arc-shaped groove 25, the upper end of the first straight groove 26 penetrates the top of the rotating cylinder 22, the upper end of the second straight groove 27 is connected with the low end of the arc-shaped groove 25, and the lower end of the second straight groove 27 penetrates the bottom of the rotating cylinder 22. The outer wall of the sealing tube 6 is fixedly provided with two limiting pins 28, one end of each limiting pin 28 penetrates into the sealing tube 6 horizontally and is inserted into the corresponding special-shaped sliding groove.

[0030] When the lifting tray 7 located at the taking and placing opening 11 rises, the avoiding straight groove 24 on the columnar seat 21 corresponds to the stop block 23 on the inner wall of the lifting cylinder 10, and then the columnar seat 21 directly penetrates into the lifting cylinder 10. During this process, the limiting pin 28 slides downward into the first straight groove 26. When the columnar seat 21 passes the stop block 23 upward, the limiting pin 28 slides from the upper end of the first straight groove 26 into the lower end of the first straight groove 26. Then, with the continuous upward movement of the columnar seat 21, the limiting pin 28 slides in the arc-shaped groove 25. During this process, the columnar seat 21 is driven to rotate by the limiting pin 28, so that the avoiding straight groove 24 on the columnar seat 21 intersects with the stop block 23. When the columnar seat 21 drives the lifting tray 7 to extend into the detection cavity 2, the limiting pin 28 slides from the arc-shaped groove 25 into the second straight groove 27. After the detection is completed, the contaminants in the lifting tray 7 need to be taken out. At this time, the columnar seat 21 begins to descend. When the columnar seat 21 descends, the columnar seat 21 drives the lifting cylinder 10 to descend through the stop block 23. During this process, the limiting pin 28 slides from the second straight groove 27 into the arc-shaped groove 25. In this way, the rotating cylinder 22 rotates so that the avoiding straight groove 24 on the columnar seat 21 corresponds to the stop block 23 on the inner wall of the lifting cylinder 10. Finally, the columnar seat 21 penetrates out of the lifting cylinder 10. During the processing of the sealing tube 6, a plurality of vertical guide sliding strips (not shown in the figure) can be processed on the inner wall of the sealing tube 6. A plurality of insertion grooves (not shown in the figure) for the guide sliding strips are formed on the outer wall of the rotating cylinder 22. When the columnar seat 21 penetrates out of the lifting cylinder 10 downward, the guide sliding strips immediately insert into the corresponding insertion grooves. In this way, the insertion grooves and the guide sliding strips cooperate to prevent the rotating cylinder 22 from rotating by itself.

[0031] In order to show the specific structure of the first valve-controlled exhaust member, the following features are set: The first valve-controlled exhaust member includes a first exhaust pipe 29 and a first electromagnetic valve 31. The first exhaust pipe 29 is horizontally fixed to the detection box 1 and is connected with the detection cavity 2. The first electromagnetic valve 31 is arranged on the first exhaust pipe 29.

[0032] When the toxic gas is detected, the first electromagnetic valve 31 closes the first exhaust pipe 29, and when the detection of the toxic gas is completed, the first electromagnetic valve 31 opens the second exhaust pipe 32, so that the toxic gas in the detection chamber 2 is discharged. In actual use, the first exhaust pipe 29 is connected with a toxic gas recovery tank (not shown in the figure), and the toxic gas discharged from the detection chamber 2 flows into the toxic gas recovery tank for recovery.

[0033] In order to show the specific structure of the second valve-controlled exhaust member, the following features are provided: The second valve-controlled exhaust member includes a second exhaust pipe 32 and a second electromagnetic valve 33. The second exhaust pipe 32 is fixedly connected with the sealing pipe 6, one end of the second exhaust pipe 32 is connected with the inner cavity of the sealing pipe 6, and the other end of the second exhaust pipe 32 extends out of the detection box 1. The second electromagnetic valve 33 is arranged on the second exhaust pipe 32.

[0034] When the toxic gas is detected, the second electromagnetic valve 33 closes the second exhaust pipe 32, and when the two curved covers 9 are combined to block the upper end of the sealing pipe 6, the second electromagnetic valve 33 opens the second exhaust pipe 32, so that the toxic gas in the sealing pipe 6 is discharged. In actual use, the second exhaust pipe 32 is connected with a toxic gas recovery tank (not shown in the figure), and the toxic gas discharged from the sealing pipe 6 flows into the toxic gas recovery tank for recovery.

[0035] In order to show how the access opening 11 is opened and closed, the following features are provided: The sealing pipe 6 is provided with an arc-shaped cover plate 34 covering the access opening 11, and one end of the arc-shaped cover plate 34 is hingedly connected with the outer wall of the sealing pipe 6.

[0036] When it is necessary to take out the pollutants in the lifting tray 7, the arc-shaped cover plate 34 is turned outward, so that the pollutants in the lifting tray 7 can be taken out through the access opening 11.

[0037] A new method for detecting the biological toxicity of pollutants, which comprises the following steps: S1, the pollutants to be detected are placed in the lifting tray 7 through the access opening 11, and the access opening 11 is closed; Before detection, the lifting tray 7 is lowered to the access opening 11, at this time the access opening 11 is opened, and the pollutants are placed on the lifting tray 7.

[0038] S2, the lifting tray 7 is raised, and the lifting cylinder 10 is raised to drive the two curved covers 9 to rotate in opposite directions to open the upper end of the sealing pipe 6; When the output end of the cylinder 20 extends upward, the rotating cylinder 22 will abut against the lower end of the lifting cylinder 10, and then the lifting cylinder 10 will drive the curved cover 9 to rotate outward through the cooperation of the rack 17 and the gear 18 as the cylinder 20 continues to output, so that the two curved covers 9 will rotate reversely to open the upper end of the sealed pipe 6, and finally the lifting tray 7 will extend into the detection cavity 2 from the upper end of the sealed pipe 6.

[0039] S3, the lifting tray 7 extends into the detection cavity 2 from the upper end of the sealed pipe 6, and the volatile toxic gas is detected by the sensor 5. In actual use, the detection cavity 2 is provided with an electric heating device (not shown in the figure), the detection box 1 is provided with an analysis system (not shown in the figure), the detection box 1 is provided with a control panel 35 and a display screen 36, the electric heating device is used to improve the temperature in the detection cavity 2, so as to accelerate the volatilization of the toxic gas in the pollutant, when the toxic gas diffuses into the detection cavity 2, the sensor 5 arranged in the detection cavity 2 detects the toxic gas, and the sensor 5 transmits the detected data to the analysis system for analysis (the number of the sensor 5 of the device is several, including but not limited to electrochemical sensor, semiconductor gas sensor and infrared gas sensor), and the analyzed data is displayed on the display screen 36, so as to determine which toxic volatile gas is contained in the pollutant.

[0040] S4, after the detection is completed, the lifting tray 7 starts to descend, and the lifting cylinder 10 drives the two curved covers 9 to rotate towards each other to block the upper end of the sealed pipe 6.

[0041] After the detection is completed, the output end of the cylinder 20 is retracted and drives the lifting tray 7 to descend, in this process, the cylindrical seat 21 will descend in the lifting cylinder 10, when the bottom of the cylindrical seat 21 is arranged on the plurality of stop blocks 23, the lifting cylinder 10 will descend together with the cylindrical seat 21, at the same time, the two curved covers 9 will be driven by the lifting cylinder 10 to merge towards each other to gradually block the upper end of the sealed pipe 6, in the process of the two curved covers 9 merging towards each other, the limiting pin 28 will slide from the second straight slot 27 into the arc-shaped slot 25, so that the rotating cylinder 22 will rotate to make the avoiding straight slot 24 on the cylindrical seat 21 correspond to the stop block 23 on the inner wall of the lifting cylinder 10, and finally the lifting tray 7 on the cylindrical seat 21 will pass out of the lifting cylinder 10 and descend to the taking and placing opening 11.

[0042] The above embodiment only expresses one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A new pollutant biotoxicology detection device, characterized in that: The invention comprises a detection box (1) and a lifting and placing assembly, wherein the detection box (1) is provided with a sealed detection chamber (2) and a mounting chamber (3) communicating with the outside, the detection chamber (2) and the mounting chamber (3) are distributed up and down, and a horizontal partition (4) is provided between the two, a sensor (5) is provided in the detection chamber (2), and a valve-controlled exhaust component leading to the detection chamber (2) is provided outside the detection box (1), and the lifting and placing assembly comprises a sealing tube (6) and a lifting tray (7), the sealing tube (6) is vertically provided in the mounting chamber (3), and the upper end of the sealing tube (6) passes through the partition (4) upward. The sealing tube (6) extends into the detection cavity (2). The upper end of the sealing tube (6) is an open structure and is provided with a hemispherical opening and closing cover (8). The opening and closing cover (8) includes two symmetrical curved covers (9). Each curved cover (9) is hingedly connected to the sealing tube (6). The sealing tube (6) is provided with a rotation drive mechanism. The rotation drive mechanism includes a lifting cylinder (10) that pulls the two curved covers (9) toward each other by descending. The sealing tube (6) is provided with a take-out port (11) that is located in the installation cavity (3) and can be opened and closed. The lower end of the sealing tube (6) is provided with a No. 2 valve-controlled exhaust component.

2. A new pollutant biotoxicology detection device according to claim 1, characterized in that: Two groups of connecting pieces corresponding to the curved cover (9) are fixedly provided on the outer wall of the upper end of the sealing tube (6), and each group of connecting pieces includes two symmetrical lugs (12). A horizontal rotating pin (13) is rotatably provided between the two lugs (12). A curved connecting rod (14) is formed on the outer wall of each curved cover (9), and one end of the curved connecting rod (14) is fixedly connected to the rotating pin (13).

3. A new pollutant biotoxicology detection device according to claim 2, characterized in that: The rotary drive mechanism also includes two groups of symmetrical transmission parts. The lifting cylinder (10) is coaxially arranged in the upper end of the sealing tube (6). Two symmetrical limit bars (15) are formed on the outer wall of the lifting cylinder (10). Each limit bar (15) is vertical. The outer wall of the upper end of the sealing tube (6) is provided with two limit grooves (16) that match the limit bars (15). Each group of transmission parts includes a rack (17) and a gear (18). The rack (17) is vertically fixedly connected to the limit bar (15). The gear (18) is coaxially fixedly connected to the rotating pin (13), and the gear (18) is meshed with the rack (17).

4. A new pollutant biotoxicology detection device according to claim 1, characterized in that: A lifting mechanism is provided in the sealing tube (6), the lifting mechanism comprising a lifting seat (19) and a cylinder (20), the lifting seat (19) comprising a columnar seat (21) and a rotating cylinder (22), the rotating cylinder (22) being coaxially provided in the sealing tube (6), the columnar seat (21) being coaxially fixed to the top of the rotating cylinder (22), the cylinder (20) being vertically fixed in the lower end of the sealing tube (6), the output end of the cylinder (20) being vertically upward and rotatably connected to the rotating cylinder (22), and the lifting tray (7) being fixed to the top of the columnar seat (21) by magnetic attraction.

5. A new pollutant biotoxicology detection device according to claim 4, characterized in that: The rotating cylinder (22) is located below the lifting cylinder (10), and the columnar seat (21) is located inside the lifting cylinder (10). A plurality of stoppers (23) are formed on the inner wall of the lifting cylinder (10) in a circular array, and each stopper (23) is close to the bottom of the lifting cylinder (10). The outer diameter of the columnar seat (21) is consistent with the inner diameter of the lifting cylinder (10), and a plurality of avoidance straight grooves (24) are opened on the outer wall of the columnar seat (21) for the stoppers (23) to pass through.

6. A new pollutant biotoxicology detection device according to claim 4, characterized in that: The outer wall of the rotating cylinder (22) is provided with a plurality of special-shaped chute grooves in a circumferential array, each special-shaped chute is composed of an arc groove (25), a No. 1 straight groove (26) and a No. 2 straight groove (27), one end of the arc groove (25) is high and the other end is low, the lower end of the No. 1 straight groove (26) is connected to the high end of the arc groove (25), the upper end of the No. 1 straight groove (26) penetrates the top of the rotating cylinder (22), the upper end of the No. 2 straight groove (27) is connected to the low end of the arc groove (25), and the lower end of the No. 2 straight groove (27) penetrates the bottom of the rotating cylinder (22), and two limit pins (28) are fixed on the outer wall of the sealing tube (6), and one end of each limit pin (28) is inserted into the corresponding special-shaped chute after being horizontally penetrated into the sealing tube (6).

7. A new pollutant biotoxicology detection device according to claim 1, characterized in that: The No. 1 valve-controlled exhaust component comprises a No. 1 exhaust pipe (29) and a No. 1 solenoid valve (31). The No. 1 exhaust pipe (29) is horizontally fixedly connected to the detection box (1), and the No. 1 exhaust pipe (29) is connected to the detection chamber (2). The No. 1 solenoid valve (31) is arranged on the No. 1 exhaust pipe (29).

8. The new pollutant biotoxicology detection device according to claim 1, characterized in that: The No. 2 valve-controlled exhaust component includes a No. 2 exhaust pipe (32) and a No. 2 solenoid valve (33). The No. 2 exhaust pipe (32) is fixedly connected to the sealing pipe (6). One end of the No. 2 exhaust pipe (32) is connected to the inner cavity of the sealing pipe (6). The other end of the No. 2 exhaust pipe (32) passes through the detection box (1). The No. 2 solenoid valve (33) is arranged on the No. 2 exhaust pipe (32).

9. The new pollutant biotoxicology detection device according to claim 1, characterized in that: The sealing tube (6) is provided with an arc-shaped cover plate (34) covering the access opening (11), and one end of the arc-shaped cover plate (34) is hingedly connected to the outer wall of the sealing tube (6).

10. A new pollutant biotoxicology detection method, based on the new pollutant biotoxicology detection device according to claim 1, characterized in that: The detection method comprises the following steps: S1, placing the pollutant to be detected into the lifting tray (7) through the access opening (11), and closing the access opening (11); S2, the lifting tray (7) rises, and at the same time the lifting cylinder (10) rises, driving the two curved covers (9) to rotate in opposite directions to open the upper end of the sealing tube (6); S3, the lifting tray (7) extends from the upper end of the sealing tube (6) into the detection chamber (2), and the volatile poisonous gas is detected by the sensor (5); S4, after the inspection is completed, the lifting tray (7) begins to descend, and at the same time, the lifting cylinder (10) descends to drive the two curved covers (9) to rotate toward each other to seal the upper end of the sealing tube (6).

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