CN215667995U - Water sample toxicity detection equipment and sample supply device thereof - Google Patents
Water sample toxicity detection equipment and sample supply device thereof Download PDFInfo
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- CN215667995U CN215667995U CN202121215943.8U CN202121215943U CN215667995U CN 215667995 U CN215667995 U CN 215667995U CN 202121215943 U CN202121215943 U CN 202121215943U CN 215667995 U CN215667995 U CN 215667995U
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Abstract
The application discloses water sample toxicity detection equipment and a sample supply device thereof, wherein the sample supply device is also provided with at least one sample supply groove and one liquid containing groove which are respectively used for containing water for preparing a water sample to be detected and pure water for containing a contrast water sample, an overflow groove is formed between the sample supply groove and the liquid containing groove, in addition, a circulation groove is respectively formed between the overflow groove and the sample supply groove as well as between the overflow groove and the liquid containing groove, and the depth of the circulation groove is far smaller than that of the sample supply groove and is larger than that of the liquid containing groove.
Description
Technical Field
The utility model relates to a sample supply device, in particular to a water sample toxicity detection device and a sample supply device thereof.
Background
The detection of biotoxicity is applied in many fields, especially in the detection of water samples. Water is essential to human life, and most drinking water sources today are through sewage treatment. A lot of microorganisms exist in sewage, and some sewage has certain toxicity, so that a sewage treatment manufacturer is required to detect the toxicity of toxic and harmful substances in the sewage after the sewage is treated.
When the toxicity of toxic and harmful substances in sewage is detected, a contrast water sample needs to be provided, and a preset amount of microorganisms and purified water need to be added into the contrast water sample. In addition, a water sample to be tested is also required. Because the water sample that awaits measuring among the prior art and contrast water sample carry out the splendid attire through two splendid attire containers usually. Therefore, the whole volume of the equipment is large, and two containers need to be cleaned when the subsequent cleaning is carried out, so that inconvenience is brought to the subsequent cleaning work.
Disclosure of Invention
One advantage of the present invention is to provide a water sample toxicity detecting apparatus and a sample supplying device thereof, wherein the sample supplying device can hold a contrast water sample and a water sample to be detected simultaneously.
Another advantage of the present invention is to provide a water sample toxicity detecting apparatus and a sample supplying device thereof, wherein the sample supplying device has a small overall volume.
Another advantage of the present invention is to provide a water sample toxicity detecting apparatus and a sample supplying device thereof, wherein the sample supplying device can facilitate subsequent cleaning work.
In order to achieve at least one of the above advantages, an advantage of the present invention is to provide a sample supply device, wherein the sample supply device is also provided with at least one sample supply tank and one liquid containing tank, the sample supply tank and the liquid containing tank are respectively used for containing water for preparing the sample to be tested and pure water for containing the sample to be compared, an overflow tank is formed between the sample supply tank and the liquid containing tank, furthermore, a circulation tank is formed between the overflow tank and the sample supply tank, and between the overflow tank and the liquid containing tank, and the depth of the circulation tank is far smaller than the depth of the sample supply tank and larger than the depth of the liquid containing tank.
According to an embodiment of the present invention, a through hole is formed at the bottom of the overflow groove of the sample supplying device.
According to an embodiment of the utility model, the shape of the liquid containing groove in a top view is implemented as an L shape.
According to an embodiment of the present invention, the shape of the top view of the sample well is implemented as a circle.
According to an embodiment of the utility model, the depth of the sample feeding groove can be set to be larger than the depth of the liquid containing groove
In order to achieve at least one of the above advantages, the present invention provides a water sample toxicity detecting apparatus for detecting toxicity of a water sample in a water sample to be detected, wherein the water sample toxicity detecting apparatus includes:
a device body, wherein the device body forms a light-shielding space;
the sample measuring assembly is arranged to detect the intensity of light emitted by the luminescent bacteria in the shading space;
the sampling assembly is arranged in the equipment main body, and one sampling assembly is arranged to automatically convey the water sample to be detected to a test position formed by the sample measuring assembly in the shading space, so that the sample measuring assembly can detect the water sample to be detected; and
the sample supply device as described above, wherein the sample supply device is disposed in the apparatus main body and is used for containing and preparing the sample of water to be tested.
According to an embodiment of the present invention, the sample measuring assembly includes a light intensity testing part, wherein the light intensity testing part is disposed in the light shielding space and is configured to test the luminous intensity of the specific luminescent bacteria mixed in the water sample to be tested and guided to the light shielding space through the sampling assembly.
According to an embodiment of the present invention, the sample measuring assembly includes an analyzing part communicably connected to the light intensity testing part to compare the light emission amount of the luminescent bacteria in the water sample measured by the light intensity testing part with the reference light emission amount of the luminescent bacteria in the clear water mixed in the water sample to be measured in the same amount, so as to determine whether the toxicity of the water sample contained in the water sample to be measured is lower than a predetermined standard.
According to an embodiment of the present invention, the apparatus body forms a carrier, the sampling assembly includes a sample holding member, a sampling arm and a sample guiding member, wherein the sample holding member is made of transparent material, the sample holding member is disposed in the light shielding space and is located on a testing path of the light intensity testing part, wherein the sample holding member forms a sample holding cavity, the sampling arm is movably mounted on the carrier of the apparatus body so as to be movable relative to the carrier, wherein the sampling arm forms a sampling port, wherein the sampling port is disposed to communicate with the sample holding cavity, wherein the sampling arm is configured to be capable of switching between a sampling state of being inserted into a sample holding container for holding the sample to be tested, which is carried on the water sample carrier, and a removal state of being removed from the sample holding container, wherein the sampling arm is in the sampling state, the sample guide component is controlled to guide the water sample to be detected in the sample container to flow to the sample containing cavity.
According to an embodiment of the utility model, the sampling assembly comprises two sampling arms, and the distance between the center line of the sample supply groove and the liquid containing groove is equal to the distance between the sampling ports at the ends of the two sampling arms.
Drawings
Fig. 1 shows a perspective view of the water sample toxicity detection apparatus according to the present invention.
Fig. 2A shows a schematic diagram of the water sample toxicity detection apparatus according to the present invention in a first state.
FIG. 2B is a schematic diagram of the water sample toxicity test apparatus of the present invention in a second state.
Fig. 2C shows a schematic diagram of the water sample toxicity detecting apparatus according to the third embodiment of the present invention.
FIG. 3 shows a side view of the water sample toxicity detection apparatus of the present invention in one state.
Fig. 4 is a block diagram showing a part of the structure of the water sample toxicity detection apparatus according to the present invention.
Fig. 5 shows a block diagram of another part of the structure of the water sample toxicity detection device according to the present invention.
Fig. 6 shows a perspective view of the sample supply apparatus according to the present invention.
Fig. 7 shows a top view of the sample supply apparatus of the present invention.
Detailed Description
The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 1 to 6, a water sample toxicity detecting apparatus according to a preferred embodiment of the present invention will be described in detail below, wherein the water sample toxicity detecting apparatus can automatically detect the toxicity of a water sample to be detected, so as to ensure the safety of the water sample in the water sample to be detected.
Specifically, the water sample toxicity detecting apparatus includes an apparatus body 10, at least one sampling assembly 20 and a sample measuring assembly 30, wherein the apparatus body 10 forms a light shielding space 101. The sample measuring assembly 30 is arranged to detect the intensity of light emitted by the luminescent bacteria in the light-shielding space 101. The sampling assembly 20 is arranged in the device main body 10, and the sampling assembly 20 is arranged to automatically convey a water sample to be tested to a position of a test formed by the sample measuring assembly 30, which is located in the light shielding space 101, so that the sample measuring assembly 30 can detect the water sample to be tested.
It should be noted that the sample measuring assembly 30 is configured to include a light intensity testing part 31, wherein the light intensity testing part 31 is configured in the light shielding space 101 for testing the light intensity of the specific luminescent bacteria mixed in the water sample to be tested and guided to the light shielding space 101 through the sampling assembly 20.
Preferably, the light intensity measuring part 31 is provided to be able to detect the luminous intensity of the vibrio fisheri guided to the light shielding space 101 and mixed in the water sample. It will be understood by those skilled in the art that Vibrio fischeri gradually decreases in luminescence intensity as the toxicity of a water sample increases.
The sample measuring assembly 30 further comprises an analysis component 32. The light intensity testing part 31 is communicably connected to the analyzing part 32 to compare the amount of light emitted from the vibrio fischeri in the water sample measured by the light intensity testing part 31 with the reference amount of light emitted from the vibrio fischeri in the clean water, which is mixed in the water sample to be tested, in the same amount, so that it can be determined whether the toxicity of the water sample contained in the water sample to be tested is lower than a predetermined standard.
It will be appreciated that the predetermined criterion may be implemented as a criterion of drinking water, in such a way that the water sample toxicity detection apparatus can automatically detect the toxicity of the water sample to be tested, thereby preventing a user from drinking non-standard drinking water and the sewage treatment provider from treating the water sample to be tested whose toxicity is not satisfactory.
Further, the sampling assembly 20 includes a sample holding member 21, a sampling arm 22 and a sample guiding member 23. The sample holding member 21 is provided in the light shielding space 101. The sampling arm 22 is movably mounted to the apparatus body 10 so as to be movable relative to the apparatus body 10.
In one embodiment, the sampling arm 22 is rotatably mounted on the apparatus body 10, and the apparatus body 10 forms a carrying platform 11 for carrying the sample container containing the sample to be tested. When the sampling arm 22 is driven to rotate towards the top of the carrier 11, the sampling arm 22 extends into the sample container, wherein the sample container is carried on the carrier 11 at a position corresponding to the sampling arm 22.
The sample guiding member 23 is controlled to automatically guide the water sample to be tested in the sample container to the sample containing member 21 for subsequent testing by the light intensity testing component 31.
In one embodiment, the sample introduction member 23 includes a conduit 231 and an air pressure generating member 232. The two ends of the conduit 231 are respectively communicated with the sampling port at the end of the sampling arm 22 and the sample holding member 21, and the air pressure generating member 232 is communicated with the conduit 231 in a manner that negative pressure can be formed in the sample holding member 21 and the negative pressure can be kept at a predetermined value.
Preferably, the sample holding member 21 is made of a transparent material, and the sample holding member 21 forms a sample holding cavity 2101, wherein the sample holding cavity 2101 is communicated with the sample guiding member 23, specifically, the conduit 231 and the air pressure generating member 232. In this embodiment, the air pressure generating member 232 and the sample holding member 21 form a syringe, and the air pressure generating member 232 is implemented as a piston structure of the syringe, wherein the air pressure generating member 232 is coupled to the sample holding member 21 to slide along the inner wall of the sample holding chamber 2101 formed on the sample holding member 21.
Therefore, as the air pressure generating member 232 moves, a negative pressure with adjustable magnitude is formed in the sample holding chamber 2101. When the air pressure generating member 232 stops moving, the air pressure in the sample holding chamber 2101 can be maintained at a predetermined value, so that a predetermined amount of water sample is held in the sample holding chamber 2101.
In other words, by controlling the air pressure generating member 232, a predetermined amount of the water sample can be held in the sample holding chamber 2101. When negative pressure is formed in the sample containing cavity 2101, the sampling arm 22 can suck fluid, and when the air pressure in the sample containing cavity 2101 is increased, the sucked fluid can flow out from the sampling port of the sampling arm 22.
Preferably, the water sample toxicity detecting apparatus of the present invention comprises at least two sampling assemblies 20, wherein one of the sampling assemblies 20 is used for taking the water sample to be detected, and the other sampling assembly 20 is configured for taking a contrast water sample. The water sample to be detected and the comparison water sample are respectively guided to the shading space 101 through one sampling assembly 20, and then the light intensity testing part 31 can test the water sample to be detected and the comparison water sample which are positioned in the shading space 101, so that the detection error can be reduced.
It is understood that the sample holding members 21 of the two sampling assemblies 20 are both provided in the light shielding space 101 and are arranged side by side on the photometric path of the light intensity testing part 31. By the arrangement mode, the water sample to be detected and the contrast water sample in the two sample containing cavities 2101 can be detected simultaneously by one sample measuring assembly 30.
It will be understood by those skilled in the art that the light intensity testing part 31 of the sample measuring assembly 30 can be correspondingly arranged according to the number of the sample holding members 21, for example, when the water sample toxicity detecting apparatus comprises two sampling assemblies 20, the sample measuring assembly 30 can also comprise two light intensity testing parts 31, and the utility model is not limited in this respect.
It should be noted that the sample guiding members 23 of the sampling assemblies 20 can be synchronously controlled, so that the sample to be tested and the sample to be compared are respectively and correspondingly guided into the sample holding cavities 2101, so that the sample measuring assembly 30 can simultaneously detect the sample to be tested and the sample to be compared. Because the water sample to be tested and the comparison water sample are tested simultaneously, test errors caused by differences in test time in the water sample to be tested and the comparison water sample can be prevented.
Further, the water sample toxicity detecting apparatus further comprises a luminescent bacteria container 40 and a sample preparation member 50, wherein the luminescent bacteria container 40 is supported on the supporting platform 11 for containing cultured luminescent bacteria, such as vibrio fisheri. The sample fitting 50 forms at least one sample fitting groove 501. The sampling arm 22 is slidably disposed on the apparatus main body 10 relative to the carrier 11, the sample fitting 50 and the luminescent bacteria container 40 are disposed under a sliding path of the sampling arm 22, so that when the sampling arm 22 is driven to slide relative to the carrier 11, a sampling port at an end of the sampling arm 22 can be aligned with the sample fitting groove 501 of the sample fitting 50 or the luminescent bacteria container 40, so that the sampling port of the sampling arm 22 can be inserted into the sample fitting groove 501 or the luminescent bacteria container 40 after the sampling arm 22 is driven to rotate close to the carrier 11. Subsequently, by driving the air pressure generating member 232, the water sample prepared in the sample preparation tank 501 or the luminescent bacteria contained in the luminescent bacteria container 40 can be respectively absorbed.
Preferably, the sample preparation member 50 has two sample preparation grooves 501, wherein one of the sample preparation grooves 501 is used for preparing the sample of the water to be tested, and the other one of the sample preparation grooves 501 is used for preparing the sample of the contrast water.
Specifically, the sampling arm 22 of the sampling assembly 20 is configured to slide over the photogenic bacteria receptacle 40 and then be driven to rotate into the photogenic bacteria receptacle 40. As the air pressure generating member 232 is driven to form a negative pressure, a predetermined amount of the luminescent bacteria is sucked. Subsequently, the sampling arm 22 is driven to rotate in a direction away from the carrier 11, and then the luminescent bacteria container 40 is removed. Accordingly, the sampling arm 22 continues to be driven to slide over the sample well 501 of the sample fitting 50. As the air pressure generating member 232 is driven to be pressurized, the suctioned luminescent bacteria are discharged from the sampling port of the sampling arm 22 into the sample preparation tank 501.
It is worth mentioning that a water sample to be detected can be placed in the sample preparation tank 501 in advance, and when the luminescent bacteria are discharged to the water sample to be detected in the sample preparation tank 501, the water sample to be detected is formed.
It is also worth mentioning that, when the water sample toxicity detecting apparatus includes two sampling assemblies 20, the sampling arms 22 of the two sampling assemblies 20 are synchronously driven to simultaneously suck an equal amount of the luminescent bacteria from the luminescent bacteria container 40, and simultaneously discharge the sucked luminescent bacteria to the two sample preparation grooves 501 of the sample preparation member 50. The two sample preparation grooves 501 of the sample preparation 50 are respectively pre-filled with water samples to be detected and pure water used for preparing contrast water samples, so that the luminescent bacteria can be absorbed and discharged to the two sample preparation grooves 501 of the sample preparation 50, and then the two sample preparation grooves 501 are respectively filled with the water samples to be detected and the contrast water samples.
It is worth mentioning that, in one embodiment, the water sample toxicity detecting apparatus does not include the sample preparation member 50, but two different sample containers previously placed on the carrier 11 are used to store the water sample to be detected and the pure water used for preparing the contrast water sample. In this example, the pure water refers to water containing no harmful substances, such as mineral water.
Through the explanation, those skilled in the art can understand that the water sample toxicity detection equipment not only can realize the toxicity detection of the water sample to be detected, but also can automatically prepare the water sample to be detected and the comparison water sample, thereby ensuring the accuracy of the test result.
It should be noted that, because the quantity of the luminescent bacteria added to the water sample to be tested is consistent with that of the luminescent bacteria added to the comparison water sample, and the water sample to be tested and the comparison water sample are allocated and detected simultaneously, errors caused by the difference of the luminescent bacteria in the adding time can be effectively avoided.
In addition, a resting groove 502 is also provided on the fitting 50. After the sampling arm 22 is driven to suck the luminescent bacteria from the luminescent bacteria container 40, the luminescent bacteria are temporarily discharged into the resting tank 502 and left to stand for a predetermined time. After standing for a preset time, the luminescent bacteria in the standing tank 502 are automatically transferred to the two sample preparation tanks 501 by the sampling arm 22, and the water sample to be tested and the comparison water sample are prepared.
More preferably, the two sampling arms 22, the two sample fitting grooves 501 are arranged in a direction perpendicular to the moving direction of the sampling arms 22, and the width of the resting groove 502 in the direction perpendicular to the moving direction of the sampling arms 22 is larger than the interval between the two sampling arms 22.
Further, the water sample toxicity detecting apparatus further comprises a sample supplying device 60, and the sample supplying device 60 is also provided with at least one sample supplying tank 601 and a liquid containing tank 602, which are respectively used for containing the water for preparing the water sample to be detected and the pure water for containing the contrast water sample. It is worth mentioning that the liquid tank 602 for containing the pure water of the contrast sample is connected to a pure water supply device through a pump body to continuously supply the pure water to the liquid tank 602.
The sample supply device 60 is carried on the carrier stage 11, and the sample supply tank 601 and the liquid holding tank 602 of the sample supply device 60 are respectively disposed below the sliding path of the sampling arm 22. Along with the sample arm 22 slide and rotate, and the atmospheric pressure takes place the change that piece 232 formed the negative pressure, sample arm 22 can with the splendid attire in supply appearance groove 601 is used for the splendid attire to prepare the water of the water sample that awaits measuring and the splendid attire the pure water of contrast water sample is transferred respectively to in the sample preparation groove 501 of sample preparation 50, in order to wait to prepare the water sample that awaits measuring with the contrast water sample.
It is worth mentioning that the depth of the sample feeding groove 601 can be set to be larger than the depth of the liquid containing groove 602, an overflow groove 603 is formed between the sample feeding groove 601 and the liquid containing groove 602, and a circulation groove 604 is formed between the overflow groove 603 and the sample feeding groove 601 and between the overflow groove 603 and the liquid containing groove, respectively. It is worth mentioning that the depth of the flow groove 604 is far less than the depth of the sample supply groove 601 and greater than the depth of the liquid containing groove 602, so as to prevent the sample to be tested in the sample supply groove 601 or the contrast water sample in the liquid containing groove 602 from being too much and fusing with each other, thereby avoiding the mutual influence between the sample to be tested and the contrast water sample.
It is also worth mentioning that, since the overflow tank 603 and the circulation tank 604 are provided, it is only necessary to fill a predetermined amount of cleaning water into one of the liquid holding tank 602 or the sample supply tank 601 when cleaning the sample supply device 60.
Further, a through hole 605 is formed at the bottom of the overflow groove 603 of the sample supplying device 60, so that when the sample of the sample to be tested in the sample supplying groove 601 or the contrast sample in the liquid containing groove 602 flows to the overflow groove 603, the liquid in the overflow groove 603 can be discharged in time.
Further, the liquid tank 602 is formed in an L-shape in plan view, and the sample well 601 is formed in a circular shape in plan view. In one embodiment, the sampling assembly 20 includes two sampling arms 22. The distance between the center line of the sample well 601 and the end of the L-shape is equal to the distance between the sampling ports at the ends of the two sampling arms 22.
Further, the water sample toxicity detecting apparatus further comprises at least one beneficial bacteria supplying component 70, wherein the beneficial bacteria supplying component 70 comprises a beneficial bacteria supplying component 71 and a containing component 72. The container 72 defines a container 7201, wherein a plurality of probiotic fluid supplies 71 are provided in communication with the container 72 to enable the flow of probiotic fluid to the container 7201 of the container 72. As the sampling arm 22 slides and rotates and the air pressure generating member 232 generates a negative pressure, the sampling arm 22 can transfer the fluid contained in the containing groove 7201 to the sample preparation groove 501 of the sample preparation member 50.
It is worth mentioning that the fluid in the containing groove 7201 may be implemented as a fluid beneficial for the survival and maintenance of activity of the luminescent bacteria. For example, when the luminescent bacteria is implemented as vibrio fisheri, the fluid may be implemented as a salt solution of a predetermined concentration.
More preferably, the water sample toxicity detecting apparatus further comprises a self-testing member 80, wherein the self-testing member 80 is carried on the carrying platform 11. The self-checking component 80 is provided with a self-checking liquid for killing the luminescent bacteria.
The self-testing component 80 is disposed on the carrier 11 and below the moving path of the sampling arm 22, so that the sampling arm 22 can take the self-testing solution.
After the water sample toxicity detection equipment tests the water sample to be detected and the comparative water sample for a preset number of times, the water sample toxicity detection equipment automatically controls the sampling assembly 20 to take the self-checking liquid instead of the pure water.
For example, when the luminescent bacteria is vibrio fischeri, the self-test solution may be implemented as a zinc sulfate solution, and whether the water sample toxicity detection apparatus can normally perform detection can be determined by adding a specific amount of the zinc sulfate solution to a specific amount of vibrio fischeri solution and detecting the luminescence amount of the luminescent bacteria in the mixed solution a plurality of times.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are given by way of example only and are not limiting of the utility model. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. A sample supply device is characterized in that at least one sample supply groove and one liquid containing groove are also arranged on the sample supply device and are respectively used for containing pure water for preparing a water sample to be detected and pure water for containing a contrast water sample, an overflow groove is formed between the sample supply groove and the liquid containing groove, in addition, a circulation groove is respectively formed between the overflow groove and the sample supply groove as well as between the overflow groove and the liquid containing groove, and the depth of the circulation groove is far smaller than that of the sample supply groove and is larger than that of the liquid containing groove.
2. The sample supply apparatus as claimed in claim 1, wherein the overflow well bottom of the sample supply apparatus is formed with a through hole.
3. The sample supply device according to claim 1 or 2, wherein the shape of the liquid containing tank in plan view is implemented as an L-shape.
4. The sample supply device according to claim 3, wherein the shape of the top view of the sample well is implemented as a circle.
5. The sample-supplying apparatus according to claim 1, wherein the depth of the sample-supplying well is set to be larger than the depth of the liquid-holding well.
6. A water sample toxicity detection apparatus for detecting the toxicity of a water sample in a water sample to be tested, wherein the water sample toxicity detection apparatus comprises:
a device body, wherein the device body forms a light-shielding space;
the sample measuring assembly is arranged to detect the intensity of light emitted by the luminescent bacteria in the shading space;
the sampling assembly is arranged in the equipment main body, and one sampling assembly is arranged to automatically convey the water sample to be detected to a test position formed by the sample measuring assembly in the shading space, so that the sample measuring assembly can detect the water sample to be detected; and
the sample supply device according to any one of claims 1 to 5, wherein the sample supply device is disposed in the main body of the apparatus for containing and preparing the sample of water to be tested.
7. The apparatus for testing toxicity of water sample according to claim 6, wherein the sample testing assembly comprises a light intensity testing member, wherein the light intensity testing member is disposed in the light-shielding space for testing the light intensity of the specific luminescent bacteria mixed in the water sample to be tested and guided to the light-shielding space via the sampling assembly.
8. The apparatus for toxicity detection of water sample according to claim 7, wherein the sample testing module comprises an analysis component communicably connected to the light intensity testing component to compare the amount of luminescence of the luminescent bacteria in the water sample measured by the light intensity testing component with a reference amount of luminescence of the luminescent bacteria in the clear water mixed in the same amount in the water sample to be tested, thereby determining whether the toxicity of the water sample contained in the water sample to be tested is lower than a predetermined standard.
9. The apparatus for toxicity testing of water samples according to claim 8, wherein the apparatus body forms a carrier, the sampling assembly comprises a sample holding member, a sampling arm and a sample guiding member, wherein the sample holding member is made of transparent material, the sample holding member is disposed in the light shielding space and located on the testing path of the light intensity testing part, wherein the sample holding member forms a sample holding chamber, the sampling arm is movably mounted on the carrier of the apparatus body so as to be movable relative to the carrier, wherein the sampling arm forms a sampling port, wherein the sampling port is disposed to communicate with the sample holding chamber, wherein the sampling arm is disposed to be capable of switching between a sampling state in which it is inserted into a sample holding container for holding the water sample to be tested and a removal state in which it is removed from the sample holding container, when the sampling arm is in the sampling state, the sample guide component is controlled to guide the water sample to be detected in the sample container to flow to the sample containing cavity.
10. The water sample toxicity detection apparatus according to claim 9, wherein the sampling assembly comprises two sampling arms, and the distance between the central line of the sample supply tank and the liquid containing tank is equal to the distance between the sampling ports at the ends of the two sampling arms.
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| CN202121215943.8U CN215667995U (en) | 2021-06-02 | 2021-06-02 | Water sample toxicity detection equipment and sample supply device thereof |
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| CN202121215943.8U CN215667995U (en) | 2021-06-02 | 2021-06-02 | Water sample toxicity detection equipment and sample supply device thereof |
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| CN215667995U true CN215667995U (en) | 2022-01-28 |
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