Portable microalgae content detection equipment

Abstract

The invention relates to the technical field of microalgae content detection, in particular to portable microalgae content detection equipment, and solves the problem that the detection efficiency of the equipment is further delayed due to the fact that the detection method is relatively complicated and the pre-preparation step of the detection operation takes relatively long time when large-scale detection operation is carried out. Comprising a handheld cuvette detector body, and a convenient rotary detection mechanism is mounted on the lower end face of the handheld cuvette detector body. According to the invention, a plurality of cuvettes can be sequentially moved to a position between two optical detection assemblies for detection operation through the convenient rotation detection mechanism, the cuvettes can be firstly rotated through the microalgae mixing vortex-eliminating colorimetric detection mechanism to uniformly mix a microalgae-containing to-be-detected liquid, and then the flowing of the microalgae-containing to-be-detected liquid is forcibly cut off, so that the resting speed of the microalgae-containing to-be-detected liquid is accelerated, and the detection efficiency is improved. According to the technical scheme, the steps of detecting a large batch of microalgae-containing liquid to be detected by the equipment are reduced, and meanwhile, the detection efficiency of the equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of microalgae content detection technology, specifically a portable microalgae content detection device. Background Technology

[0002] Microalgae content detection refers to the process of quantitatively analyzing the content of specific target substances in microalgae samples using physical, chemical, or biological methods. Portable microalgae content detection devices are handheld or portable microalgae analysis tools that can quickly complete on-site detection without complicated sample pretreatment. They use principles such as optics, fluorescence, or microscopic imaging to quantitatively analyze parameters such as microalgae concentration, chlorophyll content, and density of specific algae species, such as cyanobacteria, in water or culture media. These portable microalgae content detection devices are mainly divided into cuvette-type microalgae content detectors and immersion optical probe-type microalgae content detectors.

[0003] However, when using a cuvette-type detector to test reagents in multiple cuvettes, each cuvette needs to be installed inside the detector one by one, which is a cumbersome process. Furthermore, before each test, the reagents in the cuvettes need to be manually shaken and mixed, and after mixing, the cuvettes need to be left to settle for a period of time. These preparation steps for cuvette-type detectors are time-consuming, further delaying the equipment's testing efficiency. Therefore, this method does not meet current needs. To address this, we propose a portable microalgae content detection device. Summary of the Invention

[0004] The purpose of this invention is to provide a portable microalgae content detection device to solve the problems mentioned in the background art, such as the need to install each cuvette individually when using a cuvette-type detector to detect reagents in multiple cuvettes, which is a cumbersome detection method; the need to manually shake and mix the reagents in the cuvettes before each detection operation; and the need to let the cuvettes stand still for a period of time after mixing to allow the reagents to settle. The preparation steps of this cuvette-type detector take a long time, which further delays the detection efficiency of the device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a portable microalgae content detection device, comprising a handheld cuvette detector body, wherein a convenient rotating detection mechanism is installed on the lower end face of the handheld cuvette detector body, the convenient rotating detection mechanism comprising multiple cuvettes and a rotating mechanism, the multiple cuvettes being arranged in a ring, each cuvette containing a microalgae-containing test solution, and an optical detection component fixedly installed inside the handheld cuvette detector body on both sides of the microalgae-containing test solution closest to the rear end face of the handheld cuvette detector body; and the rotating mechanism is capable of sequentially moving the ring-arranged cuvettes between two optical detection components. Above the two optical detection components is a microalgae mixing and de-edging colorimetric detection mechanism fixedly installed inside the main body of the handheld colorimetric cup detector. The microalgae mixing and de-edging colorimetric detection mechanism includes multiple square plate sealing caps and a mixing and de-edging transmission mechanism. The multiple square plate sealing caps are respectively installed on the upper end face of multiple colorimetric cups through a threaded structure, and a cross-shaped cut-off plate is provided on the lower side inside each square plate sealing cap. The mixing and de-edging transmission mechanism can drive the colorimetric cup located between the two microalgae-containing test liquids to rotate or drive the cross-shaped cut-off plate to move downward.

[0006] Preferably, the rotating mechanism includes a pentagonal mounting groove, the interior of which is provided with a pentagonal plate. The inner wall of the pentagonal mounting groove has an unequal-sided pentagonal cross-section. The outer surface of the pentagonal plate is in contact with the inner wall of the pentagonal mounting groove, and the pentagonal mounting groove and the pentagonal plate are slidably connected.

[0007] Preferably, an electric rotating ring is installed on the upper surface of the pentagonal plate, and a fixing groove is provided on the upper surface of the electric rotating ring at a position corresponding to the colorimetric cup. A colorimetric cup base is inserted into the fixing groove, and a fixing magnet is provided on the inner side of the colorimetric cup base. A metal inner sleeve fixed to the inner wall of the fixing groove is provided on the outer side of the fixing magnet, and multiple colorimetric cups are respectively movably installed on the upper surface of multiple colorimetric cup bases.

[0008] Preferably, the lower side inside the electric rotating ring is provided with a ring of positioning springs whose position and number correspond to the fixing grooves. The lower end face of the positioning spring is connected to a hemispherical positioning head, and the outer side of the bottom end of the hemispherical positioning head is provided with a hemispherical positioning groove located inside the pentagonal plate.

[0009] Preferably, a circular groove is provided in the middle of the lower end face of the pentagonal plate, a rotating force-bearing handle is provided inside the circular groove, a circular plate is fixed to the upper end face of the rotating force-bearing handle, a threaded fixing head is fixed to the upper end face of the circular plate and connected to the pentagonal plate by a threaded structure, and an internal thread fixing groove is provided on the outer side of the top end of the threaded fixing head, which is located inside the body of the handheld colorimeter.

[0010] Preferably, the mixing and vortex-eliminating transmission mechanism includes two lifting motors, the output shafts of the two lifting motors are connected to a threaded lifting rod through a coupling, a roller bearing ring is installed on the upper side of the outer surface of the two threaded lifting rods through a threaded structure, and a lifting plate is connected to the inner side of the roller bearing ring through a roller bearing.

[0011] Preferably, a metal sleeve is provided on both sides above the lifting plate, and a connecting rod that moves vertically through the lifting plate is provided on the inner side of the metal sleeve. A first spring is sleeved on the outer surface of the connecting rod, and a mounting ring that is fixed to the lower end face of the two first springs is connected to the lower end face of the two connecting rods. A lower toothed ring is fixed on the lower end face of the mounting ring.

[0012] Preferably, each of the square plate sealing caps has a lower toothed ring at a position corresponding to the upper toothed ring on its upper end face, and the top ends of the teeth of both the lower and upper toothed rings are arc-shaped.

[0013] Preferably, a push rod is provided at the middle position of the lower end face of the lifting plate, and a hybrid motor is fixedly installed inside the main body of the handheld colorimeter above the push rod. The output shaft of the hybrid motor is connected to a square rotating shaft through a coupling. A square slot is provided on the outside of the square rotating shaft, located at the middle position of the upper end face of the lifting plate and extending into the push rod. The inner wall of the square slot has a square cross-sectional shape, and the outer surface of the square rotating shaft fits against the inner wall of the square slot. Inside each of the square plate sealing caps, at a position corresponding to the push rod, there is a contact rod fixed to the upper surface of the cross-shaped cut plate. A metal sleeve is fixedly fitted on the upper side of the outer surface of the contact rod, and a second spring fitted on the outer surface of the contact rod is connected to the lower end of the metal sleeve. The cross-sectional shape of the cross-shaped cut plate is cross-shaped.

[0014] Preferably, an intelligent control screen is installed on the upper surface of the handheld colorimeter body, and the handheld colorimeter body and the intelligent control screen are electrically connected.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention uses a convenient rotating detection mechanism to sequentially move multiple colorimetric cups, each containing a microalgae-containing test solution, between two optical detection components. Through the above technical solution, the equipment can sequentially perform detection operations on multiple microalgae-containing test solutions, reducing the number of steps required for detecting large batches of microalgae-containing test solutions while accelerating the detection efficiency. 2. The present invention utilizes a microalgae mixing and de-vortex colorimetric detection mechanism. First, the colorimetric cup is rotated. After the microalgae-containing test solution inside the colorimetric cup is completely mixed, a cross-shaped cut plate with an overall cross-sectional shape is inserted into the inside of the colorimetric cup. This disrupts the fluidity of the microalgae-containing test solution during rotation, forcing it to stop flowing and accelerating its calming speed. This technical solution automatically mixes the microalgae-containing test solution while simultaneously accelerating its calming speed. This structure reduces equipment preparation steps and further improves the detection efficiency of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view of the entire invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 For the present invention Figure 3 Enlarged view of the structure at point D; Figure 5 For the present invention Figure 4 Enlarged view of the structure at point C; Figure 6 For the present invention Figure 4 Enlarged view of the structure at point B.

[0017] In the diagram: 1. Main body of the handheld colorimeter; 2. Convenient rotating testing mechanism; 201. Pentagonal mounting slot; 202. Pentagonal plate; 203. Electric rotating ring; 204. Fixing slot; 205. Colorimeter base; 206. Fixing magnet; 207. Colorimeter; 208. Test solution containing microalgae; 209. Hemispherical positioning slot; 210. Hemispherical positioning head; 211. Positioning spring; 212. Threaded fixing head; 3. Hybrid motor; 4. Square rotating shaft; 5. Lifting plate; 6. Push rod; 7. Square slot; 8. Metal sleeve; 9. Connecting rod; 10. First spring; 11. Mounting ring; 12. Lower toothed ring; 13. Square plate sealing cap; 14. Upper toothed ring; 15. Cross-shaped cut-off plate; 16. Contact rod; 17. Second spring; 18. Metal sleeve; 19. Lifting motor; 20. Threaded lifting rod; 21. Roller bearing ring; 22. Optical detection assembly; 23. Intelligent control panel. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Please see Figures 1 to 6 This invention provides an embodiment of a portable microalgae content detection device, comprising a handheld cuvette detector body 1. A convenient rotating detection mechanism 2 is installed on the lower end face of the handheld cuvette detector body 1. The convenient rotating detection mechanism 2 includes multiple cuvettes 207 and a rotating mechanism. The multiple cuvettes 207 are arranged in a ring, and each cuvette 207 contains a microalgae-containing test solution 208. Optical detection components 22, fixedly installed inside the handheld cuvette detector body 1, are provided on both sides of the microalgae-containing test solution 208 closest to the rear end face of the handheld cuvette detector body 1. The rotating mechanism can sequentially move the ring-arranged cuvettes 207 between two optical detection components 22. An intelligent control screen 23 is installed on the upper end face of the handheld cuvette detector body 1, and the handheld cuvette detector body 1 is electrically connected to the intelligent control screen 23, allowing the device to be controlled via the intelligent control screen 23.

[0020] The rotating mechanism includes a pentagonal mounting groove 201, inside which is a pentagonal plate 202. The inner wall of the pentagonal mounting groove 201 has an irregular pentagonal cross-section. The outer surface of the pentagonal plate 202 fits against the inner wall of the pentagonal mounting groove 201, and the pentagonal mounting groove 201 and the pentagonal plate 202 are slidably connected. An electric rotating ring 203 is mounted on the upper end face of the pentagonal plate 202. A fixing groove 204 is provided on the upper end face of the electric rotating ring 203 at a position corresponding to the colorimetric cup 207. A colorimetric cup base 205 is inserted into the fixing groove 204. A fixing magnet 206 is provided on the inner side of the colorimetric cup base 205, and a metal inner sleeve fixed to the inner wall of the fixing groove 204 is provided on the outer side of the fixing magnet 206. Multiple cuvettes 207 are movably mounted on the upper surfaces of multiple cuvette bases 205. When the equipment is to be used, the water source to be tested and the reagents to be tested are added inside the cuvettes 207 to form a microalgae-containing test solution 208. When multiple batches of testing are required, the microalgae-containing test solution 208 is added to the inside of multiple cuvettes 207. After the microalgae-containing test solution 208 is added, the cuvette base 205 located on the lower surface of the cuvette 207 is inserted into the fixing groove 204 located on the upper surface of the electric rotating ring 203. The cuvette 207 is then adsorbed and fixed in the current position by the fixing magnet 206 located inside the cuvette base 205 and the metal inner sleeve fixed to the inner wall of the fixing groove 204.

[0021] A circular groove is provided in the middle of the lower end face of the pentagonal plate 202. A rotating force-bearing handle is located inside the circular groove. A circular plate is fixed to the upper end face of the rotating force-bearing handle. A threaded fixing head 212, connected to the pentagonal plate 202 via a threaded structure, is fixed to the upper end face of the circular plate. An internal threaded fixing groove located inside the main body 1 of the handheld colorimeter is provided on the outer side of the top end of the threaded fixing head 212. After all the colorimeter cups 207 are installed, the pentagonal plate 202 is aligned with the pentagonal mounting groove 201 and inserted. Then, the pentagonal plate 202 is... When plate 202 is inserted into the pentagonal mounting slot 201, the electric rotating ring 203 installed on the upper surface of the pentagonal plate 202 will also enter the body 1 of the handheld colorimeter. After the pentagonal plate 202 is completely inserted into the pentagonal mounting slot 201, the threaded fixing head 212 is rotated by rotating the force-bearing handle, and the top end of the threaded fixing head 212 is moved into the internal thread fixing slot located inside the body 1 of the handheld colorimeter, thereby completing the fixed installation of the pentagonal plate 202 and the electric rotating ring 203. After the pentagonal mounting slot 201 is fixedly installed, the multiple cuvettes 207 installed on its upper surface are moved sequentially between the two optical detection components 22 by the electric rotating ring 203. The absorbance or transmittance of the microalgae-containing test liquid 208 inside the cuvette 207 is read by the optical detection component 22 and the data is displayed on the intelligent control screen 23. Then, the staff can read the displayed data and record it.

[0022] Inside the electric rotating ring 203, on the lower side, there is a ring of positioning springs 211 whose position and number correspond to the fixing groove 204. The lower end face of the positioning spring 211 is connected to a hemispherical positioning head 210. The outer side of the bottom end of the hemispherical positioning head 210 is provided with a hemispherical positioning groove 209 located inside the pentagonal plate 202. Through the hemispherical positioning head 210 located on the lower end face of the electric rotating ring 203 and itself locked inside the hemispherical positioning groove 209, the relative position between the multiple color cups 207 located on the upper end face of the electric rotating ring 203 and the pentagonal plate 202 can be positioned. Since the inner wall of the pentagonal mounting groove 201 is an irregular pentagon, when the pentagonal plate 202, whose shape corresponds to that of the pentagonal mounting groove 201, is inserted into the pentagonal mounting groove 201, and the installation of the pentagonal plate 202 and the electric rotating ring 203 is completed, no matter how many times it is installed, the multiple colorimetric cups 207 located on the upper surface of the electric rotating ring 203 after installation will always be in the same position. The above technical solution ensures that when multiple cuvettes 207 are installed, they always remain in the same position, thereby improving their installation accuracy.

[0023] Above the two optical detection components 22 is a microalgae mixing and de-edging colorimetric detection mechanism fixedly installed inside the main body 1 of the handheld cuvette detector. The microalgae mixing and de-edging colorimetric detection mechanism includes multiple square plate sealing caps 13 and a mixing and de-edging transmission mechanism. The multiple square plate sealing caps 13 are respectively installed on the upper end face of multiple cuvettes 207 through a threaded structure, and each square plate sealing cap 13 has a cross-shaped cut-off plate 15 on its lower side inside. The mixing and de-edging transmission mechanism can drive the cuvette 207 located between two microalgae-containing test liquids 208 to rotate or drive the cross-shaped cut-off plate 15 to move downward. The mixing and de-edging transmission mechanism includes two lifting motors 19, and the output shafts of the two lifting motors 19 are connected by a coupling. A threaded lifting rod 20 is connected to the shaft. A roller bearing ring 21 is installed on the upper side of the outer surface of the two threaded lifting rods 20 through a threaded structure. A lifting plate 5 is connected to the inner side of the roller bearing ring 21 through a roller bearing. When the colorimetric cup 207 is moved between the two optical detection components 22, before its absorbance value or transmittance is read by the optical detection components 22, the intelligent control screen 23 will automatically start the two lifting motors 19. The lifting motors 19 can drive the threaded lifting rods 20 connected to them to rotate. When the two threaded lifting rods 20 rotate synchronously, the roller bearing rings 21 installed on the upper side of the outer surface of the two threaded lifting rods 20 will move up and down accordingly. At this time, the roller bearing ring 21 moves downward.

[0024] A metal sleeve 8 is provided on both sides above the lifting plate 5. A connecting rod 9 that moves vertically through the lifting plate 5 is provided on the inner side of the metal sleeve 8. A first spring 10 is sleeved on the outer surface of the connecting rod 9. A mounting ring 11 that is fixed to the lower end face of the two first springs 10 is connected to the lower end face of the two connecting rods 9. A lower toothed ring 12 is fixed on the lower end face of the mounting ring 11. When the roller bearing ring 21 moves downward, the lifting plate 5 located inside the roller bearing ring 21 and the mounting ring 11 connected to the lifting plate 5 through the metal sleeve 8, the connecting rod 9 and the first spring 10 will move downward together.

[0025] Each square plate sealing cap 13 has a lower toothed ring 12 at a position corresponding to the lower toothed ring 12 on its upper end face. The top ends of the teeth on both the lower toothed ring 12 and the upper toothed ring 14 are arc-shaped. As the mounting ring 11 descends, the lower toothed ring 12 fixed to the lower end face of the mounting ring 11 will mesh with the upper toothed ring 14 on the upper end face of the square plate sealing cap 13 below it. By designing the bottom ends of the teeth on the lower toothed ring 12 and the upper toothed ring 14 to be arc-shaped, it is possible to prevent the teeth on the square plate sealing cap 13 and the upper toothed ring 14 from colliding directly, thus preventing them from meshing.

[0026] A push rod 6 is located at the middle of the lower end face of the lifting plate 5. Above the push rod 6 is a hybrid motor 3 fixedly installed inside the main body 1 of the handheld colorimeter. The output shaft of the hybrid motor 3 is connected to a square rotating shaft 4 via a coupling. A square slot 7 is located at the middle of the upper end face of the lifting plate 5 and extends into the push rod 6 on the outside of the square rotating shaft 4. The inner wall of the square slot 7 has a square cross-section, and the outer surface of the square rotating shaft 4 fits against the inner wall of the square slot 7. When the square plate sealing cap 13 and the upper toothed ring 14 mesh together, the lifting motor 19 will be turned off, and then the hybrid motor 3 will be automatically started. The hybrid motor 3 can drive the square rotating shaft 4 connected to it to rotate. The square slot 7 on the upper end face of the lifting plate 5 fits into the inner wall. Therefore, when the square rotating shaft 4 rotates, the lifting plate 5 itself and the mounting ring 11 connected to the lifting plate 5 by the metal sleeve 8, connecting rod 9 and first spring 10 will rotate together through the transmission of the square slot 7. When the mounting ring 11 rotates, the square plate sealing cap 13 connected to the mounting ring 11 by the interlocking of the lower toothed ring 12 and the upper toothed ring 14, and the cuvette 207 located between the two optical detection components 22 connected to the square plate sealing cap 13 by the threaded structure will rotate accordingly. After the cuvette 207 starts to rotate, the microalgae-containing test liquid 208 located inside the cuvette 207 can be mixed. After the colorimeter cup 207 has rotated for five seconds, the mixing motor 3 will stop driving the square rotating shaft 4, causing it to stop rotating. At the same time, the lifting motor 19 will drive the lifting plate 5 to move downwards again.

[0027] Inside each square plate sealing cap 13, at a position corresponding to the push rod 6, there is a contact rod 16 fixed to the upper end face of the cross-shaped cut plate 15. A metal sleeve 18 is fixedly sleeved on the upper side of the outer surface of the contact rod 16, and a second spring 17 sleeved on the outer surface of the contact rod 16 is connected to the lower end face of the metal sleeve 18. The cross-shaped section of the cross-shaped cutting plate 15 is cross-shaped; as the lifting plate 5 descends, the push rod 6 fixed to the lower end face of the lifting plate 5 will gradually approach the contact rod 16 located inside the square plate sealing cap 13 and come into contact with it. When the two come into contact with each other, and the push rod 6 continues to move downward, the contact rod 16 itself and the metal sleeve 18 fixed to the upper side of the outer surface of the contact rod 16 will move downward together and squeeze the second spring 17 connected to the lower end face of the metal sleeve 18. As the contact rod 16 moves downward, the cross-shaped cut-off plate 15 fixed to its lower end face will enter the interior of the cuvette 207 located below it, thereby dividing the microalgae-containing test liquid 208 that is constantly flowing due to inertia into four areas, disrupting the fluidity of the microalgae-containing test liquid 208 during rotation, forcing it to stop flowing, and accelerating its calming speed. The above technical solution can accelerate the cooling speed of the microalgae-containing test solution 208 while automatically mixing it. This structure reduces the equipment preparation steps and further improves the equipment's detection efficiency. After the cross-shaped cut-off plate 15 enters the cuvette 207 for ten seconds, the optical detection component 22 can be activated to read the absorbance or transmittance of the microalgae-containing test liquid 208 located between the two optical detection components 22. After the optical detection component 22 finishes reading, the lifting plate 5 and the push rod 6 are moved upward by the lifting motor 19. During the upward movement, the push rod 6 can gradually push the cross-shaped cut plate 15 upward by the reaction force of the squeezed second spring 17, so as to re-store the cross-shaped cut plate 15 into the inside of the square plate sealing cap 13. When the lower toothed ring 12 and the upper toothed ring 14 are engaged with each other, but the lifting plate 5 continues to move downward via the lifting motor 19, the lower end face of the lifting plate 5 will squeeze the first spring 10 sleeved on the outer surface of the connecting rod 9. When the single inspection operation is completed and the lifting plate 5 is moved upward, the squeezed first spring 10 will gradually extend. When the upper end face of the lifting plate 5 is in contact with the lower end face of the metal sleeve 8, and the first spring 10 can no longer extend, as the lifting plate 5 rises, the lower toothed ring 12, which is indirectly connected to it, will move upward together to release the engagement between the lower toothed ring 12 and the upper toothed ring 14.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A portable microalgae content detection device comprising a handheld cuvette detector main body (1), characterized in that: The lower end face of the handheld colorimetric cup detector main body (1) is provided with a convenient rotary detection mechanism (2), the convenient rotary detection mechanism (2) comprises a plurality of colorimetric cups (207) and a rotary mechanism, a plurality of colorimetric cups (207) are arranged in a ring shape, the inside of each colorimetric cup (207) contains microalgae to be detected liquid (208), the two sides of the microalgae to be detected liquid (208) closest to the rear end face of the handheld colorimetric cup detector main body (1) are each provided with an optical detection assembly (22) fixedly installed in the inside of the handheld colorimetric cup detector main body (1), and the rotary mechanism can move the colorimetric cups (207) arranged in a ring shape to between the two optical detection assemblies (22) in turn. Two optical detection assemblies (22) are provided above the microalgae mixing and vortex elimination colorimetric detection mechanism fixedly installed in the inside of the handheld colorimetric cup detector main body (1), the microalgae mixing and vortex elimination colorimetric detection mechanism comprises a plurality of square plate sealing caps (13) and a mixing and vortex elimination transmission mechanism, a plurality of square plate sealing caps (13) are respectively installed on the upper end faces of a plurality of colorimetric cups (207) through threaded structures, and the lower side of the inside of each square plate sealing cap (13) is provided with a cross-shaped cutting plate (15), and the mixing and vortex elimination transmission mechanism can drive the colorimetric cup (207) located between the two microalgae to be detected liquids (208) to rotate or drive the cross-shaped cutting plate (15) to move downward.

2. The portable microalgae content detection device according to claim 1, wherein: The rotary mechanism comprises a pentagonal mounting groove (201), the inside of the pentagonal mounting groove (201) is provided with a pentagonal plate (202), the inner wall cross section shape of the pentagonal mounting groove (201) is an unequal-sided pentagon, the outer surface of the pentagonal plate (202) is fitted with the inner wall of the pentagonal mounting groove (201), and the pentagonal mounting groove (201) and the pentagonal plate (202) are slidably connected.

3. The portable microalgae content detection device of claim 2, wherein: The upper end face of the pentagonal plate (202) is provided with an electric rotating ring (203), the upper end face of the electric rotating ring (203) is provided with a fixed groove (204) corresponding to the position of the colorimetric cup (207), the colorimetric cup base (205) is inserted into the inside of the fixed groove (204), the inside of the colorimetric cup base (205) is provided with a fixed magnet (206), the outside of the fixed magnet (206) is provided with a metal inner sleeve fixed to the inner wall of the fixed groove (204), and a plurality of colorimetric cups (207) are movably installed on the upper end faces of a plurality of colorimetric cup bases (205).

4. The portable microalgae content detection device of claim 3, wherein: The lower side of the inside of the electric rotating ring (203) is provided with a circle of positioning springs (211) corresponding in position and number to the fixed groove (204), the lower end face of the positioning spring (211) is connected with a hemispherical positioning head (210), and the outside of the bottom end of the hemispherical positioning head (210) is provided with a hemispherical positioning groove (209) located in the inside of the pentagonal plate (202).

5. The portable microalgae content detection device of claim 4, wherein: The middle position of the lower end surface of the pentagonal plate (202) is provided with a circular groove, the inside of the circular groove is provided with a rotating force handle, the upper end surface of the rotating force handle is fixed with a circular plate, the upper end surface of the circular plate is fixed with a threaded fixing head (212) connected with the pentagonal plate (202) through a threaded structure, and the outer side of the top end of the threaded fixing head (212) is provided with an internal threaded fixing groove located in the inside of the handheld colorimetric cup detector main body (1).

6. The portable microalgae content detection device of claim 1, wherein: The mixing vortex eliminating transmission mechanism comprises two lifting motors (19), the output shafts of the two lifting motors (19) are both connected with a threaded lifting rod (20) through a shaft coupling, the upper side of the outer surface of the threaded lifting rod (20) is provided with a roller bearing ring (21) through a threaded structure, and the inner side of the roller bearing ring (21) is connected with a lifting plate (5) through a roller bearing.

7. The portable microalgae content detection device of claim 6, wherein: The two sides above the lifting plate (5) are both provided with a metal sleeve (8), the inner side of the metal sleeve (8) is provided with a connecting rod (9) which is vertically movably penetrated through the lifting plate (5), the outer surface of the connecting rod (9) is sleeved with a first spring (10), the lower end surface of the two first springs (10) is connected with a mounting ring (11) which is fixed to the lower end surfaces of the two connecting rods (9), and the lower end surface of the mounting ring (11) is fixed with a lower tooth ring (12).

8. The portable microalgae content detection device of claim 7, wherein: The lower end surface of the lifting plate (5) is provided with a push rod (6) at the middle position, the upper side of the push rod (6) is provided with a mixing motor (3) fixedly installed in the handheld colorimetric cup detector main body (1), the output shaft of the mixing motor (3) is connected with a square shaft (4) through a shaft coupling, the outer side of the square shaft (4) is provided with a square insertion slot (7) located at the middle position of the upper end surface of the lifting plate (5) and extending into the push rod (6), the inner wall of the square insertion slot (7) is square in shape, and the outer surface of the square shaft (4) is fitted with the inner wall of the square insertion slot (7); 9. The portable microalgae content detection device of claim 6, wherein: The inner side of each square plate sealing cap (13) is provided with a contact rod (16) fixed to the upper end surface of the cross-shaped cutting plate (15) at a position corresponding to the push rod (6), the upper side of the outer surface of the contact rod (16) is fixedly sleeved with a metal sleeve (18), and the lower end surface of the metal sleeve (18) is connected with a second spring (17) sleeved on the outer surface of the contact rod (16). The cross-shaped cutting plate (15) is cross-shaped in cross-sectional shape. The upper end surface of the handheld colorimetric cup detector main body (1) is provided with an intelligent control screen (23), and the handheld colorimetric cup detector main body (1) and the intelligent control screen (23) are connected in electrical signal.

10. The portable microalgae content detection device of claim 1, wherein: ​

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