Automatic elutriation device for detecting two insects

Abstract

The utility model provides an automatic elutriation device for detecting two insects, which belongs to the technical field of water quality detection devices, and comprises a machine body, an elutriation liquid bottle, a pressure pump and a vibrator, and a sample bin is respectively connected with the elutriation liquid bottle and the pressure pump; the sample bin comprises a sample bin body and a sample bin cover, internal threads are arranged on an inner cavity of the sample bin body, a filter bag is mounted in the sample bin body, and the vibrator is arranged on the sample bin body; an external thread is arranged outside the sample bin cover, a liquid inlet connector is arranged at the top of the sample bin cover, the sample bin cover rotates in the sample bin body, and different bin body spaces are formed according to different rotation depths to adapt to different types of filter bags. According to the invention, the technical problems of increased detection cost and low detection efficiency caused by non-universality of elutriation devices of two kinds of two-worm detection methods in the prior art are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water quality detection devices, and particularly relates to an automatic washing device for two-worm detection. Background Art

[0002] China's "Hygienic Standard for Drinking Water" (GB 5749-2006) has been implemented since July 1, 2007, and the detection of Giardia lamblia and Cryptosporidium (two worms) has been added. Currently, GB5749-2022 has been released, and the detection of two worms still has important significance in water quality detection. Giardia lamblia, also known as Giardia lamblia, Giardia, parasitizes the human small intestine and gallbladder, mainly in the duodenum, and can cause symptoms such as abdominal pain, diarrhea, and malabsorption, resulting in giardiasis. The incidence of this disease is relatively high among tourists, so it is also called traveler's diarrhea. Cryptosporidium is a tiny coccidian parasite that widely exists in various vertebrates. The main one that parasitizes humans and most mammals is Cryptosporidium parvum. The disease caused by Cryptosporidium parvum is called cryptosporidiosis, which is a zoonotic protozoal disease mainly manifested by diarrhea.

[0003] Currently, the relatively mature method for detecting two worms in water is the immunomagnetic separation method. The immunomagnetic separation method is mainly divided into the Filta-Max Xpress method and the Envirochek method. Although the detection processes of the two methods are the same, the washing devices of the two methods are not universal. Among them, the Filta-Max Xpress method uses a pressure filter bag with a low height and directly punches the pressure filter bag through the pressure of a pressure pump for washing, while the Envirochek method uses a vibration filter bag with a high height and realizes the washing of the vibration filter bag through the vibration of a vibrator. Therefore, when laboratories use different methods for detection, they need to purchase additional washing devices that match the methods, increasing the detection cost. At the same time, all the automatic washing devices on the market are single-channel, and only one sample can be washed each time. After the washing is completed, the sample is manually replaced, and after manually balancing the sample, it is placed in a centrifuge by the tester for centrifugation operation. Summary of the Utility Model

[0004] The details of one or more embodiments of the present utility model are presented in the following drawings and description to make other features, purposes, and advantages of the present application more concise and understandable.

[0005] The present utility model provides an automatic washing device for two-worm detection, which solves the technical problem that the existing two two-worm detection methods cannot share the same washing device for detection, and has the characteristics of strong universality, low detection cost, and high detection efficiency.

[0006] The utility model discloses an automatic elution device for two-insect detection, which comprises a machine body, an elution liquid bottle, a pressure pump and a vibrator. A sample bin is installed inside the machine body; the elution liquid bottle is used to provide elution liquid into the sample bin; the pressure pump is used to provide pressure to the sample bin; the vibrator is used to provide power to the sample bin; the sample bin is respectively connected to the elution liquid bottle and the pressure pump; the sample bin includes a sample bin body and a sample bin cover. An internal thread is provided on the inner cavity of the sample bin body, a filter bag is installed inside the sample bin body, and the vibrator is provided on the sample bin body; an external thread is provided on the outside of the sample bin cover, a liquid inlet joint is provided on the top of the sample bin cover, and the sample bin cover rotates inside the sample bin body, forming different bin body spaces according to different rotation depths to adapt to different types of filter bags.

[0007] In some embodiments, the liquid inlet joint is connected to the elution liquid bottle through a liquid inlet pipe. A liquid inlet is provided on the sample bin cover. One end of the liquid inlet is connected to the liquid inlet joint, the other end of the liquid inlet is connected to the filter bag, a liquid outlet is provided at the bottom of the sample bin body, one end of the liquid outlet is communicated with the filter bag, and the other end of the liquid outlet is connected with a liquid outlet pipe.

[0008] In some embodiments, a plurality of sample bins are provided. The liquid inlet pipe includes a main pipe and a plurality of branch pipes. The number of the branch pipes is the same as the number of the sample bins. One end of the branch pipe is connected to the main pipe, and the other end of the branch pipe is connected to the sample bin.

[0009] In some embodiments, it further includes a centrifuge bottle base, which is provided at the bottom of the sample bin. A centrifuge bottle slot is provided on the centrifuge bottle base for placing a centrifuge bottle, and the centrifuge bottle corresponds to the liquid outlet pipe.

[0010] In some embodiments, a plurality of centrifuge bottle slots are provided, and the number of the centrifuge bottle slots is the same as the number of the sample bins.

[0011] In some embodiments, it further includes a lifting assembly, which includes: a lifting base; a lifting rod, one end of the lifting rod is connected to the centrifuge bottle base, and the other end of the lifting rod is installed inside the lifting base.

[0012] In some embodiments, it further includes a control device, which is electrically connected to the vibrator and the pressure pump to control the start and stop, vibration times, vibration time of the vibrator and to control the pressure of the pressure pump.

[0013] In some embodiments, a quick interface is provided on the branch pipe.

[0014] In some of these embodiments, a flow controller is provided on the main pipeline.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. Through the rotational cooperation between the sample chamber body and the sample chamber cover, the present utility model forms different chamber spaces according to different rotational depths, adapting to different types of filter bags. Thus, the same elutriation device can be used for the two detection methods of Filta-Max Xpress method and Envirochek method in the prior art, without the need to purchase an additional elutriation device matching the method. The tester can select a suitable filter bag according to different detection methods, and then rotate the sample chamber cover to form a chamber space suitable for the filter bag, so as to fix the suitable filter bag in the sample chamber body. It has the characteristics of strong versatility, low detection cost, and high detection efficiency. In the present utility model, a vibrator is provided on the sample chamber body. In order to meet the requirement when using the Envirochek method, the vibrator is started, and the sample in the suitable filter bag is elutriated by vibration. In the present utility model, by designing a pressure pump, on the one hand, the pressure pump provides pressure to make the elutriation liquid enter the sample chamber body through the liquid inlet pipe. On the other hand, when using the Filta-Max Xpress method for elutriation, the pressure pump further provides necessary pressure for the sample chamber body to ensure that the elutriation liquid can effectively penetrate the sample, improving the thoroughness of elutriation.

[0017] 2. By providing multiple sample chambers, the present utility model can simultaneously elutriate multiple filter bags in multiple sample chambers, shortening the processing time of multiple samples, reducing experimental operations at the same time, and greatly improving the detection efficiency.

[0018] 3. Through the design of the liquid inlet pipe, including the main pipeline and multiple branch pipelines, the present utility model enables the elutriation liquid to be evenly distributed into each sample chamber, ensuring that the filter bags in each sample chamber can be fully elutriated. The design of the liquid inlet and outlet of the sample chamber cover and the sample chamber body, in cooperation with the liquid outlet pipe and the centrifuge bottle base, realizes the effective discharge and collection of the elutriation liquid; it can not only greatly improve the elutriation efficiency, but also effectively avoid the leakage of the elutriation liquid and sample loss.

[0019] 4. By providing a lifting assembly, the present utility model can not only effectively adapt to centrifuge bottles of different sizes, but also be freely adjusted between different heights, enabling the centrifuge bottle to effectively cooperate with the liquid outlet pipe, preventing phenomena such as leakage when collecting the elutriation liquid.

[0020] 5. By providing a control device, the utility model can not only effectively control the start and stop of the vibrator, the number of vibrations, the vibration time, and the pressure of the pressure pump, but also control the selection of two detection methods, namely the Filta-Max Xpress method and the Envirochek method, the number of elution times, the amount of eluent used, etc., making the entire elution process more intelligent and automated, and further improving the elution efficiency and accuracy.

[0021] 6. In the utility model, by providing a flow controller on the main pipeline, the flow rate of the eluent can be accurately controlled to ensure the balance of the eluent amount in each sample chamber, avoiding detection errors caused by uneven flow rates. By providing quick connectors on the branch pipelines, it is convenient for the installation and maintenance of the device, reduces the downtime, improves the work efficiency, and can also quickly switch between different filter bags in the two detection methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the utility model and form a part of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0023] Figure 1 is a schematic structural diagram of the automatic elution device for two-worm detection provided by the embodiment of the utility model;

[0024] Figure 2 is a partial cross-sectional view when the vibration filter bag used in the Envirochek method is installed in the sample chamber body provided by the embodiment of the utility model;

[0025] Figure 3 is a partial cross-sectional view when the pressure filter bag used in the Filta-Max Xpress method is installed in the sample chamber body provided by the embodiment of the utility model;

[0026] Figure 4 is a schematic structural diagram of the centrifuge bottle base and the lifting assembly provided by the embodiment of the utility model;

[0027] In the above figures: 1 - body; 2 - sample chamber; 201 - sample chamber body; 2011 - liquid outlet; 202 - sample chamber cover; 2021 - liquid inlet; 203 - liquid inlet joint; 3 - liquid inlet pipe; 301 - main pipeline; 302 - branch pipeline; 303 - quick connector; 4 - liquid outlet pipe; 5 - eluent bottle; 6 - pressure pump; 7 - vibrator; 8 - centrifuge bottle base; 801 - centrifuge bottle slot hole; 9 - lifting assembly; 901 - lifting base; 902 - lifting rod; 10 - centrifuge bottle; 11 - vibration filter bag; 12 - pressure filter bag; 13 - flow controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Based on the embodiments provided by the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0029] The purpose of the present utility model is to provide an automatic elutriation device for two-insect detection with strong versatility, low detection cost, high detection efficiency, etc., aiming at the defects and deficiencies of the prior art.

[0030] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] An embodiment of the present utility model provides an automatic elutriation device for two-insect detection, referring to Figures 1-4As shown, the device at least includes a body 1, a washing solution bottle 5, a pressure pump 6 and a vibrator 7. Inside the body 1, a sample chamber 2 is installed. The sample chamber 2 is respectively connected to the washing solution bottle 5 and the pressure pump 6. The sample chamber 2 includes a sample chamber body 201 and a sample chamber cover 202. The inner cavity of the sample chamber body 201 is provided with internal threads, and a filter bag is installed inside. The vibrator 7 is provided on the sample chamber body 201. The outside of the sample chamber cover 202 is provided with external threads, and a liquid inlet joint 203 is provided at its top. The sample chamber cover 202 rotates inside the sample chamber body 201, and different chamber spaces are formed according to different rotation depths, adapting to different types of filter bags. This design enables the pressure filter bag 12 in the Filta-Max Xpress method and the vibrating filter bag 11 in the Envirochek method to share the same sample chamber 2 and can be used in the same washing device, reducing the time for equipment replacement and adjustment and improving work efficiency. At the same time, by rotating the sample chamber cover 202 inside the sample chamber body 201, different chamber spaces can be formed with different rotation depths, which is easy to operate, improving the applicability and convenience of the device. The washing solution bottle 5 provides the washing solution to the sample chamber 2 through the liquid inlet pipe 3. The pressure pump 6 can not only transport the washing solution into the sample chamber 2 through pressurization, enhancing the fluidity and washing effect of the washing solution, enabling the sample to come into contact with the washing solution more fully, improving the washing efficiency and effect, but also the pressure pump 6 can increase the pressure for washing when using the Filta-Max Xpress method for washing. The vibrator 7 is designed to be started only when using the Envirochek method for washing. The start and stop of the vibrator can be controlled through the control device. When using the Envirochek method for washing, the vibrator 7 is started to provide power to the sample chamber 2, increasing the washing effect through vibration, making it easier to separate and detect the two parasites in the sample.

[0032] In the present utility model, by providing a control device (not shown in the figure), not only can the two methods (Envirochek method, Filta-Max Xpress method) be arbitrarily switched, but also parameters such as the number of washing times, the amount of washing solution used, the oscillation time, and the speed can be set. When the experimenter needs to use the Envirochek method for washing, as Figure 2 shown, Figure 2Shown is the position when the sample chamber cover 202 is adapted to the vibrating filter bag 11. The specific operation steps are as follows: After removing the sample chamber 2 through the quick interface 303, rotate and open the sample chamber cover 202, fix the vibrating filter bag 11 inside the sample chamber body 201, rotate the sample chamber cover 202. After the sample chamber cover 202 is fastened to the vibrating filter bag 11, connect the liquid inlet joint 203 on the sample chamber 2 to the liquid inlet pipe 3, start the automatic elutriation device and select the Envirochek method for elutriation through the control device. After the elutriation is completed, perform the shutdown operation; When the experimenter needs to use the Filta-Max Xpress method for elutriation, as Figure 3 shown, Figure 3 Shown is the position when the sample chamber cover 202 is adapted to the pressure filter bag 12. The specific operation steps are as follows: After removing the sample chamber 2 through the quick interface 303, rotate and open the sample chamber cover 202, fix the pressure filter bag 12 inside the sample chamber body 201, rotate the sample chamber cover 202. After the sample chamber cover 202 is fastened to the pressure filter bag 12, connect the liquid inlet joint 203 on the sample chamber 2 to the liquid inlet pipe 3, start the automatic elutriation device and select the Filta-Max Xpress method for elutriation through the control device. After the elutriation is completed, perform the shutdown operation, and finally realize the switching between the Filta-Max Xpress method and the Envirochek method.

[0033] In some embodiments, the number of sample chambers 1 can be designed according to actual needs. The design of the sample chamber cover 202 can be achieved by adding a sealing ring to further improve the sealing performance of the sample chamber 1 and prevent the elutriation liquid from leaking.

[0034] Furthermore, the liquid inlet joint 203 is connected to the elutriation liquid bottle 5 through the liquid inlet pipe 3. There is a liquid inlet 2021 on the sample chamber cover 202. One end of the liquid inlet 2021 is connected to the liquid inlet joint 203, and the other end of the liquid inlet 2021 is connected to the filter bag. There is a liquid outlet 2011 at the bottom of the sample chamber body 201. One end of the liquid outlet 2011 is connected to communicate with the filter bag, and the other end of the liquid outlet 2011 is connected with a liquid outlet pipe 4. By designing the liquid inlet 2021 on the sample chamber cover 202 and the liquid outlet 2011 at the bottom of the sample chamber body 201, the up-and-down flow of the elutriation liquid is realized, ensuring that the elutriation liquid can fully pass through the filter bag for elutriation, improving the elutriation efficiency and effect. The design of the liquid outlet pipe 4 facilitates the discharge and collection of the elutriation liquid, further improving the convenience of operation. Through the connection of the pipeline system of the whole device, not only the automatic flow of the elutriation liquid and the liquid discharge after sample elutriation are realized, but also the structure is simple, the operation is convenient, and the elutriation efficiency and effect of the sample are improved.

[0035] In some embodiments, the liquid inlet 2021 and the liquid outlet 2011 can have different diameters and shapes to meet the requirements of different flow rates and pressures; the materials of the liquid inlet pipe 3 and the liquid outlet pipe 4 can be selected according to the use environment, such as high-temperature resistant or corrosion-resistant materials.

[0036] Furthermore, there are multiple sample chambers 2, the liquid inlet pipe 3 includes a main pipe 301 and multiple branch pipes 302, the number of the branch pipes 302 is the same as that of the sample chambers 2, one end of the branch pipe 302 is connected to the main pipe 301, and the other end of the branch pipe 302 is connected to the sample chamber 2. By designing the main pipe 301 and multiple branch pipes 302, the present utility model realizes the supply of eluent to multiple sample chambers 2 simultaneously. The main pipe 301 is connected to the eluent bottle 5, and the branch pipes 302 are respectively connected to each sample chamber 2 to ensure that each sample chamber 2 can obtain a uniform supply of eluent, so as to perform synchronous detection; this design realizes the synchronous elution of multiple samples, improves the detection efficiency, and is suitable for the rapid detection of large-scale samples. The design of the branch pipe 302 ensures that each sample chamber 2 can independently perform the operation of eluent inlet and outlet, ensuring that the filter bag in each sample chamber 2 can be fully eluted.

[0037] In some embodiments, as Figure 1 shown, four sample chambers 2 evenly distributed in the body 1 along the circumferential direction are shown, so there are also four branch pipes 302 correspondingly. When eluting, the four sample chambers 2 can be started simultaneously for elution, greatly improving the elution efficiency.

[0038] In some embodiments, the number and arrangement of the branch pipes 302 can be adjusted according to actual needs, such as increasing or decreasing the number of the branch pipes 302, or changing the arrangement order of the pipes. The materials of the main pipe 301 and the branch pipes 302 can be selected from different pressure-resistant or corrosion-resistant materials to adapt to different use environments. The connection method can adopt a quick interface 303 or other types of connectors for easy maintenance and replacement.

[0039] Furthermore, the automatic elutriation device for two-insect detection further includes a centrifuge bottle base 8. The centrifuge bottle base 8 is provided at the bottom of the sample chamber 2. There is a centrifuge bottle slot 801 on the centrifuge bottle base 8 for holding the centrifuge bottle 10, and the centrifuge bottle 10 corresponds to the liquid outlet pipe 4. The liquid outlet 2011 at the bottom of the sample chamber 2 corresponds to the centrifuge bottle 10 through the liquid outlet pipe 4, so that the eluate after elutriation can directly flow into the centrifuge bottle 10 for collection and centrifugation. The design of the centrifuge bottle base 8 ensures the stable placement of the centrifuge bottle 10 and convenient operation. This design realizes the direct collection and treatment of the eluate through the centrifuge bottle base 8 and the centrifuge bottle slot 801, simplifies the operation process, and improves work efficiency. The use of the centrifuge bottle 10 enables the collected eluate to be conveniently subjected to subsequent centrifugation and analysis, ensuring the accuracy and reliability of the detection results.

[0040] Furthermore, there are multiple centrifuge bottle slots 801, and the number of centrifuge bottle slots 801 is the same as the number of sample chambers 2. The multiple centrifuge bottle slots 801 correspond to the multiple sample chambers 2 to ensure that the liquid after elutriation in each sample chamber 2 can enter the corresponding centrifuge bottle 10. Through this design, synchronous elutriation of the filter bags in multiple sample chambers 2 is achieved, improving the overall detection efficiency.

[0041] In some embodiments, the arrangement and number of the centrifuge bottle slots 801 can be adjusted according to actual needs, such as increasing or decreasing the number of slots 801, or changing the arrangement order of the slots 801. Figure 4 Only four centrifuge bottle slots 801 are shown, and the centrifuge bottle base 8 is circular. The four centrifuge bottle slots 801 are evenly distributed along the circumferential direction of the centrifuge bottle base 8, as Figure 1 shown. Four centrifuge bottles 10 are respectively placed in the four centrifuge bottle slots 801 and respectively correspond to the four sample chambers 2.

[0042] In some embodiments, the design of the centrifuge bottle base 8 and the centrifuge bottle slots 801 can be adjusted according to centrifuge bottles 10 of different specifications to meet different detection requirements.

[0043] Furthermore, the automatic elutriation device for two-insect detection further includes a lifting assembly 9. The lifting assembly 9 includes a lifting base 901 and a lifting rod 902. One end of the lifting rod 902 is connected to the centrifuge bottle base 8, and the other end of the lifting rod 902 is installed in the lifting base 901. Through the setting of the lifting assembly 9 in the present utility model, the lifting adjustment of the centrifuge bottle base 8 is realized, which facilitates the placement and removal of the centrifuge bottle 10. The lifting assembly 9 has a simple structure and convenient operation, improving the flexibility and applicability of the overall device. The lifting rod 902 can move up and down to drive the centrifuge bottle base 8 to perform lifting operations. It can not only effectively adapt to centrifuge bottles of different sizes but also be freely adjusted between different heights, enabling the centrifuge bottle 10 to cooperate effectively with the liquid outlet pipe 4 to prevent leakage and other phenomena during the collection of elutriated liquid.

[0044] In some embodiments, the lifting assembly 8 can be equipped with an electric lifting device or a hydraulic lifting device to improve the automation level and precision of the operation. The length and diameter of the lifting rod 802 can be adjusted according to specific requirements to meet the requirements of different heights and loads.

[0045] Furthermore, the automatic elutriation device for two-insect detection further includes a control device, which is electrically connected to the vibrator 7 and the pressure pump 6 to control the start and stop, vibration times, and vibration time of the vibrator 7 and to control the pressure of the pressure pump 6. Through the use of the control device in the present utility model, not only the precise control of the vibrator 7 and the pressure pump 6 is realized, but also the automation level and operation convenience of the elutriation process are improved. By setting different vibration and pressure parameters, it can adapt to the detection requirements of different detection methods (Envirochek method, Filta-Max Xpress method), improving the detection efficiency and accuracy.

[0046] Furthermore, a quick connector 303 is provided on the branch pipe 302. Through the setting of the quick connector 303 on the branch pipe in the present utility model, the quick connection and disassembly of the branch pipe 302 and the sample chamber 2 can be realized, facilitating the maintenance and replacement of the equipment. At the same time, the maintenance efficiency and operation convenience are improved. The design of the quick connector 303 makes the pipe connection simpler and faster, reducing the downtime and maintenance cost of the equipment. At the same time, the switching between the vibration filter bag 11 and the pressure filter bag 12 can be quickly realized.

[0047] In some embodiments, the quick connector 303 can adopt different types and specifications, such as plug-in quick connectors, rotary quick connectors, or snap-in quick connectors, to adapt to different pipe and connection requirements.

[0048] Further, a flow controller 13 is provided on the main pipeline 301. The flow controller 13 is installed on the main pipeline 301 and is used to control the flow rate of the elutriation liquid. The design of the flow controller 13 realizes the precise control of the flow rate, ensures the stability and controllability of the elutriation liquid transportation, avoids the problems of too large or too small flow rate of the elutriation liquid, and reduces the uncertainty and risk in the operation process.

[0049] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0050] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An automatic elutriation device for two-insect detection, characterized in that, Comprising: A body, inside which a sample chamber is installed; A washing liquid bottle for supplying washing liquid into the sample chamber; A pressure pump for providing pressure to the sample chamber; A vibrator for providing power to the sample chamber; The sample chamber is respectively connected to the washing liquid bottle and the pressure pump. The sample chamber includes: A sample chamber body, on the inner cavity of which an internal thread is provided. A filter bag is installed inside the sample chamber body, and the vibrator is provided on the sample chamber body; A sample chamber cover, on the outside of which an external thread is provided. A liquid inlet joint is provided at the top of the sample chamber cover. The sample chamber cover rotates inside the sample chamber body, and different chamber spaces are formed according to different rotation depths to adapt to different types of filter bags.

2. The automatic elutriation device for two-insect detection according to claim 1, characterized in that, The liquid inlet joint is connected to the washing liquid bottle through a liquid inlet pipe. A liquid inlet is provided on the sample chamber cover. One end of the liquid inlet is connected to the liquid inlet joint, and the other end of the liquid inlet is connected to the filter bag. An outlet is provided at the bottom of the sample chamber body. One end of the outlet is communicated with the filter bag, and the other end of the outlet is connected with an outlet pipe.

3. The automatic elutriation device for two-insect detection according to claim 2, characterized in that, A plurality of the sample chambers are provided. The liquid inlet pipe includes: A main pipeline; A plurality of branch pipelines. The number of the branch pipelines is the same as the number of the sample chambers. One end of the branch pipeline is connected to the main pipeline, and the other end of the branch pipeline is connected to the sample chamber.

4. The automatic elutriation device for two-insect detection according to claim 2, wherein It further includes a centrifuge bottle base, which is arranged at the bottom of the sample chamber. A centrifuge bottle slot is provided on the centrifuge bottle base for placing a centrifuge bottle, and the centrifuge bottle corresponds to the outlet pipe.

5. The automatic elutriation device for two-insect detection according to claim 4, characterized in that, A plurality of the centrifuge bottle slots are provided, and the number of the centrifuge bottle slots is the same as the number of the sample chambers.

6. The automatic elutriation device for two-insect detection according to claim 4, characterized in that, It further includes a lifting assembly, and the lifting assembly includes: A lifting base; A lifting rod, one end of which is connected to the centrifuge bottle base, and the other end of which is installed inside the lifting base.

7. The automatic elutriation device for two-insect detection according to claim 1, wherein, It further includes a control device, which is electrically connected to the vibrator and the pressure pump for controlling the start and stop, vibration times, vibration time of the vibrator and the pressure of the pressure pump.

8. The automatic elutriation device for two-insect detection according to claim 3, characterized in that, Quick connectors are provided on the branch pipelines.

9. The automatic elutriation device for two-insect detection according to claim 3, wherein A flow controller is provided on the main pipeline.

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