A new water algae analyzer

Abstract

The present invention discloses a novel water algae analyzer, comprising a measuring cylinder fixed on an outer shell, an outer ring plate with an annular structure is provided inside the measuring cylinder along its inner wall, an inner plate is rotatably installed on the inner side of the outer ring plate, and the outer ring plate and the inner plate are kept relatively sealed; an independently rotatable mounting plate is also provided on the top of the inner plate inside the measuring cylinder, and a plurality of stirring blades are evenly distributed in an annular pattern around the mounting plate. During the cleaning process of the measuring cylinder, the mounting plate is fitted on the top of the inner plate and rotates synchronously with it, while the outer ring plate, the inner plate and the mounting plate can synchronously slide upward along the inner wall of the measuring cylinder, so that the cleaning liquid gradually contacts the inner wall of the measuring cylinder. The present invention can achieve comprehensive cleaning of the inner wall of the measuring cylinder with a small amount of cleaning liquid, avoiding excessive waste of resources, and also realizes automatic opening and closing of the cylinder cover, avoiding manual opening of the cylinder cover or handheld detection probe for detection.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a novel water algae analyzer. Background Art

[0002] With social and economic development, pollution caused by human activities has accelerated the process of eutrophication. The most important step in the eutrophication process is the change in the composition, structure, and abundance of algae. This is the evolution of dominant algae species into species adapted to grow and compete in eutrophic waters, leading to a significant increase in algae abundance and biomass. This can ultimately lead to the collapse of the aquatic ecosystem structure and the complete loss of functions such as water supply and aquaculture. Therefore, the detection of algae in water bodies has become particularly important in recent years. A large number of algae detection and analyzers have emerged on the market. Chinese Patent Application No. 202123417042.X, entitled "A Water Algae Analyzer," describes a water algae analyzer comprising a power pump, a measuring cell, and a fluorescence intensity probe. The power pump pumps a sample solution into the measuring cell, and the fluorescence intensity probe is used to detect algae. After the detection is complete, a cleaning solution and an algaecide are pumped into the measuring cell by the power pump to thoroughly clean it. Residual sample solution in the measuring cell can affect the next measurement result.

[0003] However, during the cleaning process of the above-mentioned instrument, the amount of both the cleaning liquid and the algaecide needs to be consistent with the sample liquid. Only in this way can the liquid levels of the cleaning liquid and the algaecide inside the measuring cell be kept level with the sample liquid, and the sample liquid attached to the inner wall of the measuring cell be thoroughly cleaned. However, this cleaning method will result in a waste of cleaning resources. If a small amount of cleaning liquid and algaecide can be used to thoroughly clean the measuring cylinder, the cleaning and maintenance costs of the entire instrument will be reduced. In view of this, the present invention is proposed. Summary of the Invention

[0004] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a new water algae analyzer.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a novel water algae analyzer, comprising a measuring cylinder fixed on an outer shell, an outer ring plate with an annular structure being fitted along the inner wall of the measuring cylinder, an inner plate being rotatably mounted on the inner side of the outer ring plate, and the outer ring plate and the inner plate being relatively sealed; an independently rotatable mounting plate is also provided on the top of the inner plate inside the measuring cylinder, and a plurality of stirring blades are evenly distributed in an annular pattern on the circumference of the mounting plate; during the cleaning process of the measuring cylinder, the mounting plate is fitted on the top of the inner plate and rotates synchronously with it, while the outer ring plate, the inner plate and the mounting plate can synchronously slide upward along the inner wall of the measuring cylinder so that the cleaning liquid gradually contacts the inner wall of the measuring cylinder.

[0006] Preferably, two sprockets are rotatably mounted inside the outer shell, a chain is sleeved between the two sprockets, one of the sprockets is concentrically arranged with the mounting plate, a driving rod is provided through the sprocket concentrically arranged with the mounting plate, and a limiting rib is integrally formed on the circumferential surface of the driving rod along its axial direction;

[0007] The inner side of the outer shell is located on the periphery of the two sprockets and is fixedly connected to the second fixing frame and the first fixing frame respectively, wherein a cylinder is installed at the bottom of the second fixing frame, and the piston rod of the cylinder passes through the second fixing frame and is sleeved with a bearing, the bottom of the driving rod is fixedly sleeved on the bearing, and the top extends upward and passes through the outer shell, the measuring cylinder, and the inner plate in sequence and is fixedly connected to the mounting plate; a motor is fixed inside the first fixing frame, and the motor shaft of the motor extends upward and is fixedly sleeved with another sprocket; the mounting plate is driven to rotate while rotating inside the measuring cylinder through the cooperation of the motor and the cylinder.

[0008] Preferably, the end of each stirring blade is fixedly connected to an insertion rod, and a stopper is hingedly connected to the upper end surface of the mounting plate at a position corresponding to each insertion rod, and a slot adapted to the stopper is provided on the side of the stopper facing the insertion rod;

[0009] A torsion spring is provided at the hinge of each stopper, and in the initial state, each stopper remains upright under the action of the torsion spring, and each stopper can only rotate to a horizontal position along the side facing the insertion rod.

[0010] Preferably, the diameter of the through hole of the outer shell is larger than that of the driving rod, the bottom of the measuring cylinder is rotatably connected relative to its side wall, and the through hole of the measuring cylinder and the inner plate is adapted to the cross section of the driving rod.

[0011] Preferably, a sealing cover is provided at the opening on the top of the measuring cylinder, a cylinder cover is formed with a sample liquid inlet, a detection probe is installed in the middle of the cylinder cover along the vertical direction, and the detection probe is connected to the industrial computer installed on the top of the outer shell through a signal line.

[0012] Preferably, a plurality of push rods are distributed in a ring shape along the vertical direction at the top edge of the outer ring plate, and the outer ring plate drives the cylinder cover to separate from the measuring cylinder through the push rods during the upward movement of the outer ring plate inside the measuring cylinder.

[0013] Preferably, a transition cylinder is installed on the periphery of the measuring cylinder. The transition cylinder is in an annular cavity structure as a whole, and the transition cylinder is connected to the opening of the measuring cylinder through a guide platform.

[0014] Preferably, the top of the outer ring plate is configured as an inclined surface, which extends from one end of the inner plate toward the air guide platform and gradually decreases.

[0015] Preferably, a telescopic rod is installed on the outer wall of the transition cylinder in the vertical direction, and the movable end of the telescopic rod is connected to a connecting plate in the horizontal direction. Each connecting plate extends toward the top of the cylinder cover and is connected to it by bolts. A spring is also provided between the connecting plate and the fixed end of the telescopic rod. The spring is sleeved on the movable end of the telescopic rod to drive the connecting plate and the telescopic rod closer to each other.

[0016] Compared with the existing technology, the present invention provides a new water algae analyzer with the following beneficial effects:

[0017] (1) The present invention arranges an outer ring plate and an inner plate inside the measuring cylinder, and the two form a whole and can slide up and down along the inner wall of the measuring cylinder. After the measuring cylinder completes the analysis and detection of the water body, the cleaning liquid is injected into the inside of the measuring cylinder, and then slides upward inside the measuring cylinder through the outer ring plate and the inner plate. In the sliding process, the stirring blades on the side of the mounting plate rotate at high speed to stir the cleaning liquid. The cleaning liquid is continuously in contact with the inner wall of the measuring cylinder under the action of the centrifugal force of the stirring blades. Therefore, a small amount of cleaning liquid can be used to achieve comprehensive cleaning of the inner wall of the measuring cylinder, thereby achieving the purpose of saving resources.

[0018] (2) The mounting plate in the present invention can also be independently raised and lowered inside the measuring cylinder. Before the sample liquid is injected into the measuring cylinder for analysis and detection, the sample liquid can be stirred by the stirring blades driven by the rotation of the mounting plate, so that the algae sunk to the bottom are dispersed. In addition, the mounting plate can be raised and lowered while stirring, and all levels of the sample liquid can be stirred, so that the sample liquid is evenly dispersed, thereby ensuring the accuracy of algae detection and analysis.

[0019] (3) The present invention fixes the detection probe on the cylinder cover in the vertical direction, and the cylinder cover and the outer wall of the transition cylinder are connected by a telescopic rod. When cleaning, the outer ring plate gradually slides upward inside the measuring cylinder. During the sliding process, the cylinder cover will be lifted up and separated from the measuring cylinder by the push rod to avoid collision between the stirring blade and the detection probe. After the outer ring plate returns to its initial position, the cylinder cover will be sealed again on the measuring cylinder under the action of the spring, thereby realizing automatic opening and closing of the cylinder cover, avoiding manual opening of the cylinder cover or holding the detection probe for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic structural diagram of the entire novel water algae analyzer proposed in an embodiment of the present invention from a first angle;

[0022] Figure 2This is a schematic structural diagram from a second angle of the entire novel water algae analyzer proposed in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of the measuring cylinder proposed in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the measuring cylinder proposed in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the outer ring plate and inner plate according to an embodiment of the present invention moving to the top of the measuring cylinder;

[0026] Figure 6 A schematic diagram of the internal structure of the outer shell according to an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of a power structure for driving the mounting plate to rotate according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the connection between the piston rod and the inner plate according to an embodiment of the present invention;

[0029] Figure 9 A schematic diagram of the assembly of the inner plate and the outer ring plate according to an embodiment of the invention;

[0030] Figure 10 yes Figure 9 Schematic diagram of the locally enlarged structure at point A in the middle.

[0031] In the figure: 1. Outer shell; 2. Measuring tube; 3. Industrial computer; 4. Signal line; 5. Transition tube; 6. Sample liquid collecting tube; 7. Cleaning liquid collecting tube; 8. Tube cover; 9. Detection probe; 10. Sample liquid inlet; 12. Cleaning liquid outlet; 13. Sample liquid outlet; 14. Connecting plate; 15. Telescopic rod; 16. Spring; 17. Guide platform; 18. Outer ring plate; 19. Inner plate; 20. Push rod; 21. First fixed frame; 22. Motor; 23. Second fixed frame; 24. Cylinder; 25. Bearing; 27. Drive rod; 28. Sprocket; 29. ​​Chain; 30. Rotating body; 31. Mounting plate; 32. Stirring blade; 33. Stop plate; 34. Insert rod; 35. Slot. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0033] This embodiment proposes a novel water algae analyzer, as shown in the outer shell 1 to the sample liquid inlet 10 in the figure. It includes a measuring cylinder 2 fixed to the outer shell 1 and an industrial computer 3. The top sealing cover of the measuring cylinder 2 is provided with a cylinder cover 8. A detection probe 9 is vertically mounted at the center of the cylinder cover 8. A signal line 4 establishes a signal connection between the top of the detection probe 9 and the industrial computer 3, while the bottom of the detection probe 9 extends downward through the cylinder cover 8 and into the interior of the measuring cylinder 2. A sample liquid inlet 10 is also formed at the top of the cylinder cover 8. The sample liquid is pumped into the measuring cylinder 2 by an external pump unit, and the algae are then detected with the help of the industrial computer 3. It should be noted that the detection probe 9 in the present invention is conventional technology and includes a multi-wavelength excitation light generating device and a fluorescence intensity value detection device. The industrial computer 3 stores the fluorescence intensity value of each unit concentration of algae excited by light of different wavelengths. Before measurement, the instrument collects and stores the fluorescence intensity values ​​of each algae unit concentration under each wavelength of light, i.e., the fluorescence characteristic values ​​of each algae at each wavelength. The chlorophyll a concentration of each algae unit concentration can be obtained through laboratory measurement methods. Each algae has a different fluorescence characteristic value, which is utilized to achieve algae discrimination and measurement. During measurement, the industrial computer 3 controls the detection probe 9 to sequentially emit various excitation lights and collect the fluorescence intensity values ​​excited by each wavelength. The chlorophyll a concentration of each algae is calculated using the least squares method. There is a corresponding relationship between the chlorophyll a concentration of each algae and the algae density. Software can be used to convert the chlorophyll a concentration of the algae to the algae density, thereby obtaining the required data.

[0034] In addition, the sample liquid after extraction is usually contained in an ordinary horizontal container. After standing, the algae in the water sample will be stratified, and most of the algae will sink to the bottom of the bottle, which will affect the accuracy of the test results. Therefore, it is best to stir the sample liquid before testing so that the algae can be evenly distributed in the sample liquid. To this end, the present invention has a mounting plate 31 rotatably installed at the bottom of the measuring cylinder 2, and a plurality of stirring blades 32 are distributed in an annular manner on the circumferential surface of the mounting plate 31. The rotation of the mounting plate 31 drives the plurality of stirring blades 32 to stir the sample liquid, and the rotation of the mounting plate 31 can be driven by a motor in the prior art.

[0035] After completing the measurement, the first thing to do is to discharge the sample liquid inside the measuring cylinder 2. The present invention forms a sample liquid discharge port 13 on the outer wall of the bottom of the measuring cylinder 2, and a sample liquid collecting cylinder 6 is fixed on the side wall of the outer shell 1. The pipe connected to the sample liquid discharge port 13 extends to the interior of the sample liquid collecting cylinder 6, and a valve is installed on the pipe near the position of the measuring cylinder 2. After opening the valve, the sample liquid inside the measuring cylinder 2 can flow into the interior of the sample liquid collecting cylinder 6 to complete the collection.

[0036] Although the sample liquid inside the measuring cylinder 2 can be recovered, some sample liquid will remain on the inner wall and bottom of the measuring cylinder 2. A large amount of algae will also be present in this residual liquid. If this residual liquid is not processed, it will affect the next sample liquid detection result. Therefore, it is necessary to clean the inside of the measuring cylinder 2. In the prior art, when cleaning the inside of the measuring cylinder 2, a cleaning liquid or an algaecide is injected into the measuring cylinder 2. In order to ensure that the inner wall of the measuring cylinder 2 is thoroughly cleaned, the volume of the injected cleaning liquid or algaecide is usually made consistent with that of the sample liquid. Then, the cleaning liquid or algaecide is stirred to ensure that the algae and the cleaning liquid are fully in contact and the cleaning is completed. However, this cleaning method will result in a waste of resources.

[0037] The present invention, however, can clean the inner wall of the measuring cylinder 2 using only a small amount of cleaning fluid. Specifically, the configuration is as follows: an outer ring plate 18 is disposed on the inner side of the measuring cylinder 2, in close contact with its inner wall. An inner plate 19 is concentrically disposed on the inner side of the outer ring plate 18, and a plurality of rotating bodies 30 are evenly distributed on the circumferential surface of the inner plate 19. The inner plate 19 is embedded in the inner side of the outer ring plate 18 via the rotating bodies 30 and maintains a sliding fit therewith. The outer ring plate 18 and the inner wall of the measuring cylinder 2 remain in close contact, and the seal between the outer ring plate 18 and the inner plate 19 is also maintained well, preventing the cleaning fluid from leaking from between the outer ring plate 18 and the measuring cylinder 2, and between the outer ring plate 18 and the inner plate 19, to the bottom of the measuring cylinder 2. The mounting plate 31 is located at the center of the top of the inner plate 19. After the sample liquid inside the measuring cylinder 2 is discharged into the sample liquid collecting cylinder 6 through the sample liquid discharge port 13, a small amount of cleaning liquid is injected into the measuring cylinder 2 through the sample liquid inlet 10, and then the outer ring plate 18 is moved upward inside the measuring cylinder 2. During the upward movement of the outer ring plate 18, the mounting plate 31 and the inner plate 19 keep rotating synchronously. Then, the cleaning liquid continuously contacts the inner wall of the measuring cylinder 2 under the action of the centrifugal force of the stirring blade 32, thereby achieving comprehensive cleaning. This method can save a lot of cleaning liquid.

[0038] In the above scheme, the specific configuration for driving the mounting plate 31 to rotate and lift is as follows: two sprockets 28 are rotatably installed inside the outer shell 1, one of the sprockets 28 is concentrically arranged with the mounting plate 31, and a chain 29 is sleeved between the two sprockets 28. The sprocket 28 concentrically arranged with the mounting plate 31 is penetrated by a driving rod 27, and the circumferential surface of the driving rod 27 is integrally formed along its axial direction to form a limiting rib. Under the action of the limiting rib, the driving rod 27 and the sprocket 28 can maintain synchronous rotation and slide relative to each other in the vertical direction. The inner side of the outer shell 1 is located on the outer side of the two sprockets 28, and the second fixing frame 23 and the first fixing frame 21 are fixedly connected respectively. The bottom of the second fixing frame 23 is installed with a cylinder 24, and the piston rod of the cylinder 24 passes through the second fixing frame 23 and is sleeved with a bearing 25. The bottom of the driving rod 27 is fixedly sleeved on the bearing 25, and the top extends upward and passes through the outer shell 1, the measuring cylinder 2, and the inner plate 19 in sequence and is fixedly connected to the mounting plate 31.

[0039] It should be noted that, due to the limited ribs formed on the drive rod 27, the diameter of the through-hole of the outer shell 1 must be slightly larger than the diameter of the drive rod 27 to enable smooth rotation. The bottom of the measuring cylinder 2 can rotate relative to its side wall, and the through-hole of the measuring cylinder 2 and the inner plate 19 is adapted to the cross-section of the drive rod 27. This is done to ensure the seal between the measuring cylinder 2, the inner plate 19, and the bottom wall of the drive rod 27. A motor 22 is fixed inside the first fixing frame 21, and the motor shaft of the motor 22 extends upward and is fixedly connected to another sprocket 28. The operation of the motor 22 can drive the two sprockets 28 to rotate, and the rotation of the sprocket 28 can drive the driving rod 27 to rotate synchronously with it, so that the stirring blade 32 on the mounting plate 31 can rotate to stir the sample liquid or cleaning liquid, and the cylinder 24 can drive the driving rod 27 to rise and fall in the vertical direction, and then drive the outer ring plate 18 to move linearly in the vertical direction inside the measuring tube 2, so that the limited cleaning liquid can fully contact the inner wall of the measuring tube 2.

[0040] With the above-described structure, in the initial state, outer ring plate 18 is located at the inner bottom of measuring cylinder 2. When the sample liquid is injected into measuring cylinder 2, motor 22 is first activated to rotate mounting plate 31 and stirring paddle 32 to stir the bottom of the sample liquid. Cylinder 24 is then activated to drive mounting plate 31 upward, allowing stirring paddle 32 to fully stir the middle and upper portions of the sample liquid. Note that the upward movement height of mounting plate 31 must not exceed that of detection probe 9 to avoid collision between the two. Once stirring of the sample liquid is complete, detection probe 9 begins to detect it. After the test is completed, the sample liquid flows into the sample liquid collecting cylinder 6 through the sample liquid discharge port 13. At this time, the inside of the measuring cylinder 2 begins to be cleaned. After the cleaning liquid is injected into the measuring cylinder 2, since the lower end surface of the mounting plate 31 will also come into contact with the sample liquid during the upward movement of the mounting plate 31 during the stirring of the sample liquid, when cleaning the inside of the measuring cylinder 2, the lower end surface of the mounting plate 31 is cleaned first. The cylinder 24 can be started first to drive the driving rod 27 to move upward for a distance so that the cleaning liquid and the bottom of the mounting plate 31 are fully in contact. The cleaning is completed, and then the mounting plate 31 is reset; then the motor 22 and the cylinder 24 are started again to drive the driving rod 27 to rotate and move upward. At this time, in order to make the outer ring plate 18 and the inner plate 19 able to keep rising synchronously with the mounting plate 31, the present invention fixes the end of each stirring blade 32 with a plug rod 34, and the upper end surface of the mounting plate 31 is elastically hinged with a stopper 33 at the position corresponding to each plug rod 34, and the stopper 33 is provided with a slot 35 adapted thereto on the side facing the plug rod 34. For ease of understanding, the following is provided. Figure 9Taking the example for detailed description, each stopper 33 is hinged on the mounting plate 31, and a torsion spring is provided at the hinge. The torsion spring enables each stopper 33 to remain upright in the initial state, and each stopper 33 can only rotate to a horizontal position along the side facing the insertion rod 34, that is, all the stoppers 33 can rotate at an angle of 0 to 90 degrees, and can only rotate toward the stirring blade 32. When the inside of the measuring cylinder 2 is cleaned, the motor 22 drives the mounting plate 31 to rotate counterclockwise so that the insertion rod 34 on each stirring blade 32 is inserted into the slot 35 on the stopper 33. At this time, the driving rod 27 will drive the outer ring plate 18 and the inner plate 19 to move upward synchronously during the upward movement, and the stirring blade 32 is also always in a rotating state to stir the cleaning liquid. When all the cleaning liquid inside the measuring cylinder 2 is discharged into the transition cylinder 5, the motor 22 continues to drive the mounting plate 31 to rotate counterclockwise, and the cylinder 24 drives the driving rod 27 to move downward, so that the mounting plate 31, the outer ring plate 18 and the inner plate 19 are reset.

[0041] Since a stopper 33 is added to the mounting plate 31, when stirring the sample liquid, the motor 22 is required to drive the mounting plate 31 to rotate clockwise. It is best to start the motor 22 first to drive the mounting plate 31 to move upward for a distance to avoid the stirring blade 32 from colliding with the stopper 33 during the clockwise rotation. Of course, it is also possible not to take the above measures, because the stirring blade 32 will drive the stopper 33 to rotate during the clockwise rotation, but the stopper 33 will automatically reset under the action of the torsion spring, and the stirring blade 32 can also ensure smooth rotation.

[0042] When the outer ring plate 18 moves upward inside the measuring tube 2, the presence of the tube cover 8 and the detection probe 9 will interfere with it. Therefore, the present invention has several push rods 20 distributed in a vertical ring shape at the edge of the outer ring plate 18. When the outer ring plate 18 moves upward to a certain height inside the measuring tube 2, the top of the push rod 20 first contacts the tube cover 8. As the outer ring plate 18 continues to move upward, the push rod 20 will push the tube cover 8 upward to avoid contact between the mounting plate 31 and the detection probe 9. The present invention also installs a transition cylinder 5 on the periphery of the measuring cylinder 2. The transition cylinder 5 has an annular cavity structure as a whole, which is mainly used to collect the cleaning liquid inside the measuring cylinder 2, and the transition cylinder 5 is connected to the opening of the measuring cylinder 2 through a guide platform 17. When the liquid level of the cleaning liquid carried on the outer ring plate 18 is close to the top opening of the measuring cylinder 2, the cleaning liquid will flow into the transition cylinder 5 under the guidance of the guide platform 17. As the outer ring plate 18 moves further upward, the cleaning liquid continues to flow into the transition cylinder 5. When the outer ring plate 18 moves upward to be flush with the opening of the measuring cylinder 2, it stops moving. At this time, the mounting plate 31 is still in a rotating state, and the cleaning liquid remaining on the outer ring plate 18 and the inner plate 19 will all flow into the interior of the transition cylinder 5 under the action of centrifugal force, and the top of the outer ring plate 18 is set to an inclined surface, the end close to the inner plate 19 is higher, and the end close to the guide platform 17 is lower, which can better promote the cleaning liquid to flow into the interior of the transition cylinder 5.

[0043] A cleaning liquid discharge port 12 is formed at the bottom of the side wall of the transition cylinder 5. The cleaning liquid discharge port 12 is connected to the cleaning liquid collecting cylinder 7 fixed on the outer wall of the outer shell 1 through a pipeline, and a valve is installed at a position of the pipeline close to the transition cylinder 5. When all the cleaning liquid inside the measuring cylinder 2 flows into the interior of the transition cylinder 5, the valve can be opened to collect the cleaning liquid inside the transition cylinder 5.

[0044] When the above scheme is implemented, the outer ring plate 18 will push up the cylinder cover 8 during the upward movement of the measuring cylinder 2. In order to prevent the cylinder cover 8 from falling, the present invention has a telescopic rod 15 installed in the outer wall of the transition cylinder 5 in the vertical direction, and the movable end of the telescopic rod 15 is connected to a connecting plate 14 in the horizontal direction. Each connecting plate 14 extends toward the top of the cylinder cover 8 and is connected thereto by bolts. A spring 16 is also provided between the connecting plate 14 and the fixed end of the telescopic rod 15. The spring 16 is sleeved on the movable end of the telescopic rod 15. When the outer ring plate 18 moves upward to push the cylinder cover 8, the entire cylinder cover 8 moves upward under the action of the two telescopic rods 15. At this time, the spring 16 is continuously stretched. When the outer ring plate 18 returns to its initial position, the cylinder cover 8 returns to its initial position under the action of the spring 16 to seal the measuring cylinder 2, waiting for the next detection. In this way, the automatic operation of the cylinder cover 8 can be realized, avoiding manual opening of the cylinder cover 8 or handheld detection probe 9 for detection.

[0045] In the description of the present invention, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0046] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A novel water algae analyzer, comprising a measuring tube (2) fixed to an outer shell (1), characterized in that: An outer ring plate (18) having an annular structure is provided inside the measuring cylinder (2) along its inner wall, and an inner plate (19) is rotatably installed on the inner side of the outer ring plate (18), and the outer ring plate (18) and the inner plate (19) are kept relatively sealed; an independently rotatable mounting plate (31) is also provided inside the measuring cylinder (2) at the top of the inner plate (19), and a plurality of stirring blades (32) are evenly distributed in an annular pattern on the circumference of the mounting plate (31); during the process of cleaning the measuring cylinder (2), the mounting plate (31) is fitted on the top of the inner plate (19) and rotates synchronously with it, and the outer ring plate (18), the inner plate (19) and the mounting plate (31) can synchronously slide upward along the inner wall of the measuring cylinder (2), so that the cleaning liquid gradually contacts the inner wall of the measuring cylinder (2); Two sprockets (28) are rotatably mounted inside the outer shell (1), a chain (29) is sleeved between the two sprockets (28), one of the sprockets (28) is concentrically arranged with the mounting plate (31), a driving rod (27) is provided through the sprocket (28) concentrically arranged with the mounting plate (31), and a circumferential surface of the driving rod (27) is integrally formed along its axial direction to form a limiting rib; The inner side of the outer shell (1) is located at the periphery of the two sprockets (28) and is fixedly connected to a second fixing frame (23) and a first fixing frame (21), wherein a cylinder (24) is installed at the bottom of the second fixing frame (23), and a piston rod of the cylinder (24) passes through the second fixing frame (23) and is sleeved with a bearing (25), the bottom of the driving rod (27) is fixedly sleeved on the bearing (25), and the top extends upward and passes through the outer shell (1), the measuring cylinder (2), and the inner plate (19) in sequence and is fixedly connected to the mounting plate (31); a motor (22) is fixed inside the first fixing frame (21), and the motor shaft of the motor (22) extends upward and is fixedly sleeved with another sprocket (28); the mounting plate (31) is driven to rotate while rotating inside the measuring cylinder (2) through the cooperation of the motor (22) and the cylinder (24).

2. A novel water algae analyzer according to claim 1, characterized in that: The end of each stirring blade (32) is fixedly connected to an insertion rod (34), and a stopper (33) is hingedly connected to the upper end surface of the mounting plate (31) at a position corresponding to each insertion rod (34), and a slot (35) adapted to the stopper (33) is provided on one side of the stopper (33) facing the insertion rod (34); A torsion spring is provided at the hinge of each stopper (33), and in the initial state, each stopper (33) remains upright under the action of the torsion spring, and each stopper (33) can only rotate to a horizontal position along the side facing the insertion rod (34).

3. A novel water algae analyzer according to claim 1 or 2, characterized in that: The diameter of the through hole of the outer shell (1) is larger than that of the driving rod (27), the bottom of the measuring cylinder (2) is rotatably connected relative to its side wall, and the through hole of the measuring cylinder (2) and the inner plate (19) is adapted to the cross section of the driving rod (27).

4. A novel water algae analyzer according to any one of claims 1 to 3, characterized in that: A sealing cover is provided at the opening of the top of the measuring cylinder (2). A sample liquid inlet (10) is formed through the cylinder cover (8). A detection probe (9) is installed in the middle of the cylinder cover (8) in a vertical direction. The detection probe (9) is connected to an industrial control computer (3) installed on the top of the outer shell (1) through a signal line (4).

5. The novel water algae analyzer according to claim 4, characterized in that: A plurality of push rods (20) are distributed in a vertical ring shape at the top edge of the outer ring plate (18). When the outer ring plate (18) moves upward inside the measuring cylinder (2), the push rods (20) drive the cylinder cover (8) to separate from the measuring cylinder (2).

6. The novel water algae analyzer according to claim 5, characterized in that: A transition cylinder (5) is installed on the periphery of the measuring cylinder (2). The transition cylinder (5) is in an annular cavity structure as a whole, and the transition cylinder (5) is connected to the opening of the measuring cylinder (2) via a flow guide platform (17).

7. The novel water algae analyzer according to claim 6, characterized in that: The top of the outer ring plate (18) is set as an inclined surface, which extends from one end of the inner plate (19) toward the air guide platform (17) and gradually decreases.

8. The novel water algae analyzer according to claim 6, characterized in that: A telescopic rod (15) is installed on the outer wall of the transition cylinder (5) in the vertical direction. The movable end of the telescopic rod (15) is connected to a connecting plate (14) in the horizontal direction. Each connecting plate (14) extends toward the top of the cylinder cover (8) and is connected thereto by bolts. A spring (16) is further provided between the connecting plate (14) and the fixed end of the telescopic rod (15). The spring (16) is sleeved on the movable end of the telescopic rod (15) and is used to drive the connecting plate (14) and the telescopic rod (15) to approach each other.

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