An automated aquatic organism monitoring sample pre-treatment device

Abstract

This invention relates to the field of aquatic organism monitoring technology and discloses an automated aquatic organism monitoring sample pretreatment device, including an outer tank body. A treatment tank is installed on the inner wall of the outer tank body. An arc-shaped sleeve is fixedly installed at the bottom of the treatment tank. A lead screw is installed inside the treatment tank. A movable sleeve is threaded onto the outer surface of the lead screw. A connecting ring is fixedly sleeved on the top of the outer surface of the movable sleeve. A connecting rod is fixedly installed on the outer wall of the connecting ring. A cleaning brush is fixedly installed at the bottom of the connecting rod. A locking block is fixedly installed on the bottom of the outer surface of the movable sleeve. A connecting plate is locked onto the outside of the locking block. In this invention, a drive motor drives the lead screw to rotate, causing the movable sleeve to synchronously move the inclined screen up and down. Combined with a ring heating wire, this achieves integrated filtration, separation, and drying. Simultaneously, an ejector rod lifts the connecting plate, the lead screw drives the movable sleeve to rotate, and the cleaning brush automatically cleans the screen and discharges the material.

Description

Technical Field

[0001] This invention relates to the field of aquatic organism monitoring technology, specifically to an automated aquatic organism monitoring sample pretreatment device. Background Technology

[0002] Aquatic organism monitoring sample pretreatment is a key preliminary step in aquatic ecological environment monitoring. It mainly targets water samples, sediment and aquatic organism samples. Through operations such as filtration, centrifugation, extraction, concentration, purification, homogenization and preservation, impurities and interfering substances are removed, target organisms or test components are enriched, and the integrity, stability and homogeneity of the samples are ensured.

[0003] After sampling aquatic organisms, the aquatic organism samples need to be filtered and separated from the water source, and some aquatic organisms need to be dried for subsequent testing. Existing devices require separate processing of filtration and drying, which is not intelligent enough and affects the pretreatment efficiency of aquatic organism samples. Furthermore, separate processing can easily lead to impurities being mixed into the aquatic organisms, affecting the subsequent monitoring results. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automated aquatic organism monitoring sample pretreatment device, which solves the problem that the filtration and drying of aquatic organism samples need to be processed separately and are not intelligent enough.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automated aquatic organism monitoring sample pretreatment device, comprising an outer tank body, a treatment tank installed on the inner wall of the outer tank body, an arc-shaped sleeve fixedly installed at the bottom of the treatment tank, a lead screw installed inside the treatment tank, a movable sleeve threadedly connected to the outer surface of the lead screw, a connecting ring fixedly sleeved at the top of the outer surface of the movable sleeve, a connecting rod fixedly installed on the outer wall of the connecting ring, a cleaning brush fixedly installed at the bottom of the connecting rod, a snap-fit ​​block fixedly installed at the bottom of the outer surface of the movable sleeve, a connecting plate snapped onto the outside of the snap-fit ​​block, an inclined screen fixedly installed on the outer surface of the connecting plate, a separating ring fixedly installed at the top of the connecting plate, a reset component provided on the inner wall of the separating ring, a support frame installed at the bottom of the lead screw, the outer wall of the support frame fixedly installed on the inner wall of the treatment tank, an ejection component installed on the outer surface of the lead screw, and a drive component provided at the top of the lead screw.

[0006] By adopting the above technical solution, the drive motor drives the lead screw to rotate, which in turn drives the moving sleeve to move the inclined screen up and down synchronously. With the help of the annular heating wire, filtration and drying are integrated. At the same time, the ejector rod lifts the connecting plate, the lead screw drives the moving sleeve to rotate, and the cleaning brush automatically cleans the screen and discharges the material. The integrated process of filtration, drying, automatic discharge and inclined screen cleaning solves the problems of separate processing, low intelligence and easy mixing of impurities by manual discharge in existing devices.

[0007] Preferably, the top of the treatment tank is fitted with a closed cover, and the top of the closed cover has a liquid injection port.

[0008] Preferably, the drive assembly includes a fixed rod fixedly installed on the inner wall of the processing tank, an annular flow divider plate fixedly installed on the side of the fixed rod away from the inner wall of the processing tank, a fixed plate fixedly installed on the inner wall of the annular flow divider plate, and a drive motor installed on the top of the fixed plate.

[0009] Preferably, the top of the lead screw extends into the interior of the fixed plate, the output shaft of the drive motor extends into the interior of the fixed plate and into the interior of the lead screw, the annular diverter plate is disposed at the bottom of the injection port, and the bottom of the annular diverter plate is disposed at the top of the inclined screen.

[0010] Preferably, the reset assembly includes a slide frame fixedly installed on the inner wall of the partition ring, a plug sleeve slidably installed inside the slide frame, an elastic element installed at the bottom of the inner wall of the plug sleeve, and a plug post installed at the top of the elastic element.

[0011] Preferably, the top of the plug-in post is fixedly installed on the bottom of the connecting rod, and the bottom of the plug-in post is inserted into the inside of the plug-in sleeve. There are two plug-in posts and two connecting rods, and the two plug-in posts and two connecting rods are symmetrically distributed on the top of the inclined screen.

[0012] Preferably, the ejector assembly includes a limiting ring fixedly sleeved on the outer surface of the lead screw, an ejector rod fixedly installed on the top of the limiting ring, a top outlet opening at the bottom of the connecting plate, and the top of the ejector rod inserted into the interior of the top outlet.

[0013] Preferably, a discharge port is fixedly installed at the bottom of the treatment tank, and a closing sleeve is threadedly connected to the outer surface of the discharge port, with a liquid outlet at the bottom of the closing sleeve.

[0014] Preferably, a plug-in ring is fixedly installed at the bottom of the inner wall of the closed sleeve, the plug-in ring is inserted into the inside of the discharge port, and a collection net is installed inside the plug-in ring.

[0015] Preferably, a mounting bracket is fixedly installed on the inner wall of the outer tank body, and an annular heating wire is installed inside the mounting bracket. The annular heating wire is disposed on the outer wall of the processing tank.

[0016] Working principle: When pre-treating the sampled water source, personnel inject the aquatic organism sample water source to be treated into the liquid injection port at the top of the closed cover. After the water source is evenly distributed by the annular diverter plate, it falls into the top of the inclined screen inside the treatment tank. The inclined screen can intercept the aquatic organism sample. The water source after filtering the aquatic organism passes through the inclined screen and flows into the discharge port at the bottom of the treatment tank. It is discharged through the liquid outlet at the bottom of the closed cover, completing the initial separation of the sample and the water source. The controller starts the drive motor to rotate the lead screw in the forward direction, causing the moving sleeve to move vertically downward along the lead screw. Simultaneously, the connecting rod, cleaning brush, connecting plate, separator ring and inclined screen move downward as a whole. When the inclined screen moves to the position corresponding to the annular heating wire, the drive motor stops running and the annular heating wire is energized. The aquatic biological samples trapped on the inclined screen are dried and pretreated through the heat-conducting outer wall of the treatment tank. After the aquatic organism samples are dried, the drive motor restarts, causing the lead screw to continue rotating. This causes the moving sleeve and the inclined screen to move further down to the top of the limiting ring. The head of the ejector rod inserts into the top outlet and pushes the connecting plate upward, separating the connecting plate from the locking block. The elastic element inside the insert sleeve contracts under pressure, while the limiting ring presses against the bottom of the moving sleeve, allowing it to rotate only on its own axis and drive the cleaning brush to rotate synchronously. At this point, the inclined screen is at the arc-shaped sleeve and no longer adheres to the inner wall of the treatment tank. The rotating cleaning brush can remove the dried aquatic organism samples from the inclined screen, which fall into the discharge port and are intercepted by the collection net. The drive motor is powered on again, causing the lead screw to rotate in the opposite direction. The moving sleeve moves upward along the lead screw to reset, and the elastic element resets, pressing the connecting plate and locking block to re-engage, completing the pretreatment of the aquatic organisms. Personnel can then remove the pretreated aquatic organism samples by unscrewing the closing sleeve.

[0017] This invention provides an automated sample pretreatment device for aquatic organism monitoring. It has the following beneficial effects: 1. In this invention, the drive motor drives the lead screw to rotate, which in turn drives the moving sleeve to move the inclined screen up and down synchronously. With the help of the annular heating wire, filtration and drying are integrated. At the same time, the ejector rod lifts the connecting plate, the lead screw drives the moving sleeve to rotate, and the cleaning brush automatically cleans the screen discharge. The integrated process of filtration, drying, automatic discharge and inclined screen cleaning solves the problems of separate processing, low intelligence and easy mixing of impurities in existing devices.

[0018] 2. In this invention, the water sample is uniformly guided to the inclined screen by the combination of the annular diversion plate and the injection port. The inclined structure of the inclined screen facilitates rapid solid-liquid separation, which is convenient for separating aquatic organisms inside the water sample. This allows the aquatic organisms to be distributed as evenly as possible on the top of the inclined screen, which is convenient for the annular heating wire to dry the aquatic organisms.

[0019] 3. In this invention, biological samples are intercepted by a collection net inside the discharge port, and the filtrate is discharged through the liquid outlet of the closed sleeve. With the detachable structure of the plug ring and the closed sleeve, the sample and filtrate are collected separately and quickly, which solves the problems of inconvenient sample and liquid separation and collection and cumbersome operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the inclined screen of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the movable sleeve of the present invention; Figure 4 This is a schematic cross-sectional view of the limiting plate of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the diagram; Figure 6 This is a three-dimensional structural diagram of the closed sleeve of the present invention.

[0021] The components include: 1. Outer tank body; 11. Processing tank; 101. Arc-shaped sleeve; 102. Lead screw; 103. Moving sleeve; 104. Connecting ring; 105. Connecting rod; 106. Cleaning brush; 107. Clip block; 108. Connecting plate; 109. Inclined screen; 110. Separating ring; 111. Support frame; 2. Closing cover; 21. Liquid injection port; 3. Fixing rod; 31. Annular diverter plate; 32. Fixing plate; 33. Drive motor; 4. Slide frame; 41. Insert sleeve; 42. Elastic element; 43. Insert column; 5. Limiting ring; 51. Top rod; 6. Discharge port; 61. Closing sleeve; 62. Liquid outlet; 7. Insert ring; 71. Collection net; 8. Mounting frame; 81. Annular heating wire. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 6This invention provides an automated aquatic organism monitoring sample pretreatment device, comprising an outer tank body 1, a treatment tank 11 mounted on the inner wall of the outer tank body 1, an arc-shaped sleeve 101 fixedly mounted on the bottom of the treatment tank 11, a lead screw 102 mounted inside the treatment tank 11, a movable sleeve 103 threadedly connected to the outer surface of the lead screw 102, a connecting ring 104 fixedly sleeved on the top of the outer surface of the movable sleeve 103, a connecting rod 105 fixedly mounted on the outer wall of the connecting ring 104, and a cleaning brush 106 fixedly mounted on the bottom of the connecting rod 105. A snap-fit ​​block 107 is fixedly installed on the bottom of the outer surface of the movable sleeve 103. A connecting plate 108 is snapped onto the outside of the snap-fit ​​block 107. An inclined screen 109 is fixedly installed on the outer surface of the connecting plate 108. A partition ring 110 is fixedly installed on the top of the connecting plate 108. A reset component is provided on the inner wall of the partition ring 110. A support frame 111 is installed at the bottom of the lead screw 102. The outer wall of the support frame 111 is fixedly installed on the inner wall of the processing tank 11. An ejection component is installed on the outer surface of the lead screw 102. A drive component is provided on the top of the lead screw 102.

[0024] Specifically, the top end of the lead screw 102 is connected to the drive assembly, allowing the lead screw 102 to be vertically installed inside the treatment tank 11. The bottom end of the lead screw 102 is rotatably inserted into the support frame 111, enabling the drive motor 33 to drive the lead screw 102 to rotate inside the treatment tank 11. The movable sleeve 103 is threaded onto the outer surface of the lead screw 102, allowing the movable sleeve 103 to move up and down along the outer surface of the lead screw 102 when the lead screw 102 rotates. The connecting ring 104 is fixedly sleeved on the top of the outer surface of the movable sleeve 103. An L-shaped connecting rod 105 is fixedly installed on the outer side of the connecting ring 104. The bottom end of the connecting rod 105 is connected to the top of the cleaning brush 106. The connecting rod 105 is fixedly connected to the outer wall of the partition ring 110, and the cleaning brush 106 can be set on the top of the inclined screen 109. The outer wall of the inclined screen 109 is attached to the inner wall of the processing tank 11, and the inclined screen 109 is inclined downward from the connecting plate 108 to the inner wall of the processing tank 11. The connecting plate 108 has a through hole that fits the movable sleeve 103, and the inner wall of the through hole has a snap-fit ​​interface, so that the connecting ring 104 can be sleeved on the outer surface of the movable sleeve 103, and the snap-fit ​​block 107 is snapped into the inside of the snap-fit ​​interface, so that the connecting plate 108 is limited and installed on the outer wall of the movable sleeve 103 by means of the snap-fit ​​block 107. The reset assembly applies a downward squeezing force to the partition ring 110, connecting plate 108, and inclined screen 109, causing the connecting plate 108 to be locked inside the locking block 107. When the lead screw 102 rotates, the moving sleeve 103 drives the connecting rod 105, cleaning brush 106, connecting plate 108, partition ring 110, and inclined screen 109 to move up and down along the outer surface of the lead screw 102. When the moving sleeve 103 and locking block 107 move to the top of the ejection assembly, the ejection assembly pushes the connecting plate 108 upward and squeezes the reset assembly, causing the connecting plate 108 to separate from the locking block 107. At this time, the ejection assembly exerts pressure on the moving sleeve 103. The bottom of the sleeve 103 is stopped by the limit, so that the moving sleeve 103 can only rotate along the outer surface of the screw 102. The connecting ring 104, the connecting rod 105 and the cleaning brush 106 rotate together. The rotation of the cleaning brush 106 can clean the aquatic organism sample on the top of the inclined screen 109. The ejector component and the arc sleeve 101 are at the same horizontal position. When the inclined screen 109 moves to the arc sleeve 101, the inner wall of the inclined screen 109 is no longer in contact with the inner wall of the treatment tank 11. The rotation of the cleaning brush 106 can brush the aquatic organism off the inclined screen, so that the aquatic organism falls along the inner wall of the treatment tank 11 to the discharge port 6 at the bottom of the treatment tank 11. It should be noted that the movable sleeve 103 moves along the lead screw 102 to the ejector assembly and rotates. When the drive assembly drives the lead screw 102 to rotate in the opposite direction, the movable sleeve 103 can move upward along the outer surface of the lead screw 102 to reset. The implementation principle of the lead screw 102 and the movable sleeve 103 is prior art, the internal structure connection is prior art, and its working principle is common knowledge to those skilled in the art, so it will not be described in detail here. The inner wall of the processing tank 11 is provided with a limit rod, which can lock the inclined screen 109 to prevent the movable sleeve 103 and the inclined screen 109 from rotating when moving up and down along the outer surface of the lead screw 102.

[0025] First, regarding the question of how to drive the lead screw 102 to rotate, please refer to the appendix. Figure 1 With appendix Figure 3 The top of the treatment tank 11 is equipped with a closed cover 2, and the top of the closed cover 2 has a liquid injection port 21.

[0026] The drive assembly includes a fixed rod 3 fixedly installed on the inner wall of the processing tank 11. An annular flow divider 31 is fixedly installed on the side of the fixed rod 3 away from the inner wall of the processing tank 11. A fixed plate 32 is fixedly installed on the inner wall of the annular flow divider 31. A drive motor 33 is installed on the top of the fixed plate 32.

[0027] The top of the lead screw 102 extends into the interior of the fixed plate 32, the output shaft of the drive motor 33 extends into the interior of the fixed plate 32 and into the interior of the lead screw 102, the annular diverter plate 31 is located at the bottom of the injection port 21, and the bottom of the annular diverter plate 31 is located at the top of the inclined screen 109.

[0028] Specifically, the closed cover 2 is sealed and installed on the top of the outer tank body 1. An injection port 21 for injecting sampling water is provided on the top of the closed cover 2. The top of the closed cover 2 is also provided with a cable installation port, which allows the cable to be connected to the drive motor 33 through the installation port. The annular diverter plate 31 is installed at the bottom of the closed cover 2 by means of two fixing rods 3 fixedly installed on the outer surface. The two fixing rods 3 are fixedly installed on the inner wall of the treatment tank 11 on the side away from the closed cover 2. The top of the annular diverter plate 31 is provided with a circular dome, and the bottom of the annular diverter plate 31 covers the top of the partition ring 110. When the sampling water is poured in from the injection port 21, the sampling water is diverted and dispersed through the annular diverter plate 31 and flows down into the top of the inclined screen 109. The mesh of the inclined screen 109 is opened according to the size of the aquatic organisms being monitored, which can intercept the aquatic organisms. The water after filtering the aquatic organisms flows down from the inclined screen 109 and flows out into the discharge port 6 at the bottom of the treatment tank 11. The outer wall of the fixed plate 32 is fixedly connected to the inner wall of the annular diverter plate 31 by means of a reinforcing rod, so that the drive motor 33 can be installed on the top of the fixed plate 32. The output shaft of the drive motor 33 is connected to the head end of the lead screw 102 inserted into the fixed plate 32. When the drive motor 33 is powered on and started, it can drive the lead screw 102 to rotate, moving the aquatic organisms trapped on the top of the inclined screen 109 downward for the next drying pretreatment.

[0029] Secondly, regarding the question of how to push the connecting plate 108 upwards, please refer to the appendix. Figure 1 Appendix Figure 4 With appendix Figure 5 The ejector assembly includes a limiting ring 5 fixedly sleeved on the outer surface of the lead screw 102, an ejector rod 51 fixedly installed on the top of the limiting ring 5, and an ejector outlet at the bottom of the connecting plate 108, with the top of the ejector rod 51 inserted into the interior of the ejector outlet.

[0030] Specifically, the limiting ring 5 is fixedly sleeved on the outer surface of the lead screw 102. The limiting ring 5 and the arc-shaped sleeve 101 are at the same horizontal position, and two symmetrically distributed ejector rods 51 are fixedly installed on the top of the limiting ring 5. When the moving sleeve 103 rotates along the lead screw 102 to the limiting ring 5, the bottom of the locking block 107 and the moving sleeve 103 abut against the top of the limiting ring 5. At this time, the top of the ejector rod 51 is inserted into the top outlet opened at the bottom of the connecting plate 108, pushing the connecting plate 108 upward and disengaging it from the locking block 107. The connecting plate 108 rises upward. The compression reset assembly is activated, and the separating ring 110 and the inclined screen 109 move upward together, so that the top of the inclined screen 109 fits against the bottom of the cleaning brush 106. At this time, the screw 102 rotates and the moving sleeve 103 rotates along the outer surface of the screw 102, which can drive the connecting ring 104, the connecting rod 105 and the cleaning brush 106 to rotate together, so that the cleaning brush 106 can clean the aquatic biological sample after drying on the top of the inclined screen 109, so that the aquatic biological sample falls from the arc sleeve 101 and enters the discharge port 6. After the aquatic biological sample is discharged, the drive motor 33 drives the lead screw 102 to rotate in the opposite direction. The moving sleeve 103 moves upward along the lead screw 102 to reset, so that the locking block 107 is re-locked inside the connecting plate 108. The reset component is no longer squeezed and can apply downward squeezing force to the connecting plate 108. Then the moving sleeve 103 and the connecting plate 108 re-engage and can be lifted and reset together.

[0031] Secondly, regarding the issue of how to reset the connecting plate 108 that has disengaged from the latch block 107, please refer to the appendix. Figure 3 With appendix Figure 5 The reset assembly includes a slide frame 4 fixedly installed on the inner wall of the partition ring 110. A plug sleeve 41 is slidably installed inside the slide frame 4. An elastic element 42 is installed at the bottom of the inner wall of the plug sleeve 41, and a plug post 43 is installed at the top of the elastic element 42.

[0032] The top of the plug-in post 43 is fixedly installed at the bottom of the connecting rod 105. The bottom of the plug-in post 43 is inserted into the inside of the plug-in sleeve 41. There are two plug-in posts 43 and two connecting rods 105. The two plug-in posts 43 and two connecting rods 105 are symmetrically distributed at the top of the inclined screen 109.

[0033] Specifically, the annular slide frame 4 is fixedly installed on the inner wall of the partition ring 110. The bottom of the insertion sleeve 41 can be slidably installed inside the slide frame 4. The insertion post 43 can extend and retract inside the insertion sleeve 41 with the help of the elastic element 42. The top of the insertion post 43 is fixedly connected to the bottom of the connecting rod 105. When the ejector assembly ejects the connecting plate 108 upward, the partition ring 110 moves upward together, causing the insertion sleeve 41 to squeeze the elastic element 42. Then, the bottom end of the insertion post 43 is inserted into the insertion sleeve 41. When the lead screw 102 rotates in the opposite direction and the moving sleeve 103 moves upward, the locking block 107 moves upward again and locks onto the bottom of the connecting plate 108, driving the connecting plate 108 to move upward. The ejector assembly no longer applies upward pressure to the connecting plate 108. The elastic element 42 resets and applies downward pressure to the connecting plate 108, so that the connecting plate 108 and the locking block 107 are tightly locked together, preventing the connecting plate 108 from separating from the moving sleeve 103.

[0034] Finally, regarding the issues of how to dry the aquatic organisms and how to discharge the filtered water and aquatic organisms from treatment tank 11, please refer to the appendix. Figure 4 With appendix Figure 6 The bottom of the treatment tank 11 is fixedly installed with a discharge port 6. The outer surface of the discharge port 6 is threaded with a closing sleeve 61, and the bottom of the closing sleeve 61 is provided with a liquid outlet 62.

[0035] A plug-in ring 7 is fixedly installed on the bottom of the inner wall of the closed sleeve 61. The plug-in ring 7 is inserted into the inside of the discharge port 6, and a collection net 71 is installed inside the plug-in ring 7.

[0036] An installation frame 8 is fixedly installed on the inner wall of the outer tank body 1. An annular heating wire 81 is installed inside the installation frame 8. The annular heating wire 81 is located on the outer wall of the processing tank 11.

[0037] Specifically, the annular heating wire 81 is sleeved on the outside of the processing tank 11 by means of the mounting bracket 8 on the inner wall of the outer tank body 1. The part of the outer wall of the processing tank 11 near the annular heating wire 81 is made of heat-conducting metal material, and the outer tank body 1 has a pipe opening on the outside, which can be connected to the cable to energize the annular heating wire 81. When the moving sleeve 103 moves along the screw 102 to the annular heating wire 81, the drive motor 33 stops working, and the annular heating wire 81 is energized and can dry the aquatic biological sample on the top of the inclined screen 109 through the outer wall of the processing tank 11. After drying, the drive motor 33 is energized again to drive the screw 102 to rotate, so that the moving sleeve 103 drives the inclined screen 109 to the arc sleeve 101. The dried aquatic biological sample is swept out by the cleaning brush 106. When the aquatic biological sample falls into the discharge port 6, the collection net 71 can block and collect the aquatic biological sample. Personnel can collect and process the pre-treated aquatic biological sample by unscrewing the closing sleeve 61. When the initial sample water source is poured in from the injection port 21, the filtered water source flows down from the inclined screen 109 into the interior of the discharge port 6. The water source can flow out from the discharge port 62 at the bottom of the closed sleeve 61 through the collection net 71, and personnel can collect and process the water source. It should be noted that both the drive motor 33 and the annular heating wire 81 are connected to the controller. The controller can control the start and stop of the drive motor 33 and the annular heating wire 81. Before drying the intercepted aquatic biological samples, personnel can inject clean water from the outlet 62 to rinse the aquatic biological samples and clean the inside of the treatment tank 11, which facilitates the drying of the aquatic biological samples and the cleaning of the inside of the treatment tank 11.

[0038] Workflow: When pre-treating the sampled water, personnel inject the aquatic organism sample water into the injection port 21 at the top of the closed cover 2. After the water is evenly distributed by the annular diversion plate 31, it falls into the top of the inclined screen 109 inside the treatment tank 11. The inclined screen 109 can intercept the aquatic organism sample. The water after filtering the aquatic organism passes through the inclined screen 109 and flows into the discharge port 6 at the bottom of the treatment tank 11. It is discharged through the liquid outlet 62 at the bottom of the closed sleeve 61, completing the initial separation of the sample and the water. The controller starts the drive motor 33 to drive the lead screw 102 to rotate in the forward direction, so that the moving sleeve 103 moves vertically downward along the lead screw 102, and simultaneously drives the connecting rod 105, cleaning brush 106, connecting plate 108, separating ring 110 and inclined screen 109 to move down as a whole. When the inclined screen 109 moves to the corresponding position of the annular heating wire 81, the drive motor 33 stops running, the annular heating wire 81 is energized and works, and the aquatic biological samples intercepted on the inclined screen 109 are dried and pretreated through the heat-conducting outer wall of the processing tank 11. After the aquatic biological samples are dried, the drive motor 33 restarts, driving the lead screw 102 to continue rotating. This causes the moving sleeve 103 and the inclined screen 109 to continue moving downwards to the top of the limiting ring 5. The head of the ejector rod 51 inserts into the top outlet and pushes the connecting plate 108 upwards, separating the connecting plate 108 from the locking block 107. The elastic element 42 inside the insertion sleeve 41 is compressed and contracts. At the same time, the limiting ring 5 abuts against the bottom of the moving sleeve 103, allowing the moving sleeve 103 to rotate only on its own axis and drive the cleaning brush 106 to rotate synchronously. At this time, the inclined screen 109 is at its moving point. At the arc-shaped sleeve 101, it no longer adheres to the inner wall of the treatment tank 11. The rotating cleaning brush 106 can brush the dried aquatic organism sample off the inclined screen 109 and fall into the discharge port 6, where it is intercepted by the collection net 71. The drive motor 33 is powered on again and drives the lead screw 102 to rotate in the opposite direction. The moving sleeve 103 moves upward along the lead screw 102 to reset. The elastic element 42 resets and squeezes the connecting plate 108 to re-engage with the locking block 107, completing the pretreatment of the aquatic organism. Personnel can remove the pretreated aquatic organism sample by unscrewing the closing sleeve 61.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated aquatic organism monitoring sample pretreatment device, comprising an outer tank body (1), wherein a treatment tank (11) is installed on the inner wall of the outer tank body (1), characterized in that: An arc-shaped sleeve (101) is fixedly installed at the bottom of the treatment tank (11). A lead screw (102) is installed inside the treatment tank (11). A movable sleeve (103) is threaded onto the outer surface of the lead screw (102). A connecting ring (104) is fixedly sleeved onto the top of the outer surface of the movable sleeve (103). A connecting rod (105) is fixedly installed on the outer wall of the connecting ring (104). A cleaning brush (106) is fixedly installed at the bottom of the connecting rod (105). A snap-fit ​​block (107) is fixedly installed at the bottom of the outer surface of the movable sleeve (103). A connecting plate (108) is snapped onto the outside of the connecting block (107). An inclined screen (109) is fixedly installed on the outer surface of the connecting plate (108). A partition ring (110) is fixedly installed on the top of the connecting plate (108). A reset component is provided on the inner wall of the partition ring (110). A support frame (111) is installed at the bottom of the lead screw (102). The outer wall of the support frame (111) is fixedly installed on the inner wall of the processing tank (11). An ejection component is installed on the outer surface of the lead screw (102). A drive component is provided on the top of the lead screw (102).

2. The automated aquatic organism monitoring sample pretreatment device according to claim 1, characterized in that: The top of the treatment tank (11) is fitted with a closed cover (2), and the top of the closed cover (2) is provided with an injection port (21).

3. The automated aquatic organism monitoring sample pretreatment device according to claim 1, characterized in that: The drive assembly includes a fixed rod (3) fixedly installed on the inner wall of the processing tank (11). An annular diverter plate (31) is fixedly installed on the side of the fixed rod (3) away from the inner wall of the processing tank (11). A fixed plate (32) is fixedly installed on the inner wall of the annular diverter plate (31). A drive motor (33) is installed on the top of the fixed plate (32).

4. The automated aquatic organism monitoring sample pretreatment device according to claim 3, characterized in that: The top of the lead screw (102) extends into the interior of the fixed plate (32), the output shaft of the drive motor (33) extends into the interior of the fixed plate (32) and into the interior of the lead screw (102), the annular diverter plate (31) is located at the bottom of the injection port (21), and the bottom of the annular diverter plate (31) is located at the top of the inclined screen (109).

5. The automated aquatic organism monitoring sample pretreatment device according to claim 1, characterized in that: The reset assembly includes a slide frame (4) fixedly installed on the inner wall of the partition ring (110), a plug sleeve (41) is slidably installed inside the slide frame (4), an elastic element (42) is installed at the bottom of the inner wall of the plug sleeve (41), and a plug post (43) is installed at the top of the elastic element (42).

6. The automated aquatic organism monitoring sample pretreatment device according to claim 5, characterized in that: The top of the plug-in post (43) is fixedly installed at the bottom of the connecting rod (105), and the bottom of the plug-in post (43) is inserted into the inside of the plug-in sleeve (41). There are two plug-in posts (43) and two connecting rods (105). The two plug-in posts (43) and two connecting rods (105) are symmetrically distributed at the top of the inclined screen (109).

7. The automated aquatic organism monitoring sample pretreatment device according to claim 1, characterized in that: The ejection assembly includes a limiting ring (5) fixedly sleeved on the outer surface of the lead screw (102), an ejection rod (51) fixedly installed on the top of the limiting ring (5), and a top outlet is opened at the bottom of the connecting plate (108). The top of the ejection rod (51) is inserted into the interior of the top outlet.

8. The automated aquatic organism monitoring sample pretreatment device according to claim 1, characterized in that: The bottom of the treatment tank (11) is fixedly installed with a discharge port (6), and the outer surface of the discharge port (6) is threaded with a closing sleeve (61), and the bottom of the closing sleeve (61) is provided with a liquid outlet (62).

9. The automated aquatic organism monitoring sample pretreatment device according to claim 8, characterized in that: A plug ring (7) is fixedly installed on the bottom of the inner wall of the closed sleeve (61). The plug ring (7) is inserted into the inside of the discharge port (6). A collection net (71) is installed inside the plug ring (7).

10. An automated aquatic organism monitoring sample pretreatment device according to claim 1, characterized in that: An installation frame (8) is fixedly installed on the inner wall of the outer tank body (1), and an annular heating wire (81) is installed inside the installation frame (8). The annular heating wire (81) is located on the outer wall of the processing tank (11).

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