A dynamic water quality analysis device and method

Abstract

The present invention relates to the technical field of water quality detection devices, and specifically relates to a dynamic water quality analysis device and method, which includes a box body, a test rod, a fixing frame, a moving component and a loading and unloading component. The moving component includes a fixing ring and a gear. The fixing ring is directly below the detection rod. The fixing ring is movably arranged inside the box body along the vertical direction. The fixing ring is coaxially and fixedly sleeved on a test tube. The gear can drive the fixing ring to rotate. The axis of the gear is parallel to the diameter direction of the fixing ring, and the axis of the gear is parallel to the length direction of the fixing frame. The loading and unloading component is fixedly arranged inside the box body. When there is no water quality in the test tube, the loading and unloading component causes the gear to rotate forward when moving downward along the vertical direction. When there is water quality in the test tube, the loading and unloading component causes the gear to rotate in the reverse direction when moving downward vertically. The present invention enables the test tube to intermittently complete the water quality detection work in the flowing water, thereby ensuring the integrity and accuracy of the detection data.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection devices, and specifically relates to a dynamic water quality analysis device and method. Background Art

[0002] Water quality analysis is also known as water chemical analysis. That is, chemical and physical methods are used to determine the content of various chemical components in water. With the development of social economy, scientific progress, and the improvement of people's living standards, various types of pollution also exist along with these advancements. Among them, the pollution of water quality is mainly closely related to people's lives. Existing technologies all judge the pollution degree of water quality by sampling the water quality and then detecting the water quality with a test rod.

[0003] Chinese Patent CN209992490U provides a water quality analysis device. By arranging a plurality of storage grooves inside the box body to store test tubes for collecting different water qualities, then detecting and recording data for these test tubes in sequence, the detection data of multiple water qualities can be obtained, improving the accuracy of the data. At the same time, by opening water diversion holes on the test tubes, the water quality with a volume exceeding the water diversion holes flows to the outside of the test tubes, ensuring that the water quality volume in each test tube is the same. However, this solution requires manual collection of water quality before detection during use, and the water quality components at different moments of flowing water may not be the same. At this time, the data obtained after collecting and detecting the water quality may not be sufficient. Summary of the Invention

[0004] In view of the above problems, a dynamic water quality analysis device is provided. Through a moving component, the test tube can move intermittently in the vertical direction. Through a loading and unloading component, test tubes in two states, one with water quality inside and the other without water quality inside, rotate in different directions when moving vertically downward.

[0005] To solve the problems of the existing technology, the technical solution adopted by the present invention is as follows:

[0006] A dynamic water quality analysis device is provided, including a box body and a test rod. The analysis device further includes a fixing frame, a moving component, and a loading and unloading component. The fixing frame is integrally in the shape of a rectangular frame, horizontally arranged, and the length direction of the fixing frame is perpendicular to the flowing direction of the water flow. The test rod is fixedly arranged at the center inside the box body. The moving component includes a fixing ring and a gear. The fixing ring is directly below the detection rod and is movably arranged inside the box body along the vertical direction. The fixing ring is coaxially and fixedly sleeved on the test tube. The gear can drive the fixing ring to rotate. The axis of the gear is parallel to the diameter direction of the fixing ring and parallel to the length direction of the fixing frame. The loading and unloading component is fixedly arranged inside the box body. When there is no water quality in the test tube, the loading and unloading component causes the gear to rotate forward when moving vertically downward. When there is water quality in the test tube, the loading and unloading component causes the gear to rotate reversely when moving vertically downward.

[0007] Preferably, the loading and unloading components include a first rack and a second rack, the length directions of the first rack and the second rack are parallel to the sliding direction of the fixed ring, the first rack and the second rack are both slidably connected to the box body, and the sliding directions of the first rack and the second rack are parallel to the length direction of the fixed frame. When there is no water in the test tube, the first rack slides toward the center of the box body and engages with the gear. When there is water in the test tube, the second rack slides toward the center of the box body and engages with the gear.

[0008] Preferably, the moving component also includes a first sliding frame and a first sliding bar, the first sliding frame can be arranged inside the box body to move in a vertical direction, the first sliding bar is slidably arranged inside the first sliding frame, the sliding direction of the first sliding bar is parallel to the sliding direction of the first sliding frame, a first connecting rod that can rotatably connect the first sliding bar is fixedly arranged on the fixing ring, and fixing protrusions are respectively fixedly arranged at the upper and lower ends of the first sliding bar, and a first wedge block and a second wedge block that cooperate with the fixing protrusion are elastically connected to the first sliding frame, the first wedge block is above the first sliding bar, the first wedge block slides along the axial direction of the first connecting rod, the first wedge block is magnetically matched with the first rack, the second wedge block is below the first sliding bar, the second wedge block slides along the axial direction of the first connecting rod, and the second wedge block is magnetically matched with the second rack.

[0009] Preferably, the moving component also includes a first spring, a second sliding frame and a second sliding bar. The second sliding frame and the first sliding frame are mirror-imaged at both ends of the fixed ring. The second sliding bar is slidably arranged inside the second sliding frame. The sliding direction of the second sliding bar is parallel to the sliding direction of the first sliding bar. A second connecting rod rotatably connected to the second sliding bar is fixedly arranged on the fixed ring. One end of the first spring is fixedly connected to the second sliding frame, and the other end of the first spring is fixedly connected to the second sliding bar.

[0010] Preferably, the loading and unloading assembly further comprises a second spring, the second spring is fixedly arranged between the first rack and the box body, and the second spring is fixedly arranged between the second rack and the box body.

[0011] Preferably, the moving component also includes a torsion spring, the gear is coaxially fixedly connected to the end of the first connecting rod, one end of the torsion spring is fixedly connected to the gear, the other end of the torsion spring is fixedly connected to the first slide bar, and the axis of the torsion spring is coaxial with the axis of the gear.

[0012] Preferably, the moving component also includes a servo motor, the output shaft of the servo motor is connected to a threaded rod for transmission, the axis of the threaded rod is parallel to the height direction of the box, the threaded rod is threadedly connected to the second sliding frame, the threaded rod is slidably connected to the second sliding bar, and a guide frame slidably connected to the first sliding frame is fixedly provided on the box.

[0013] Preferably, the fixing frame includes a fixing frame body, connecting frames, and a fixing plate. The number of connecting frames is several. Fixing holes for fixing the box body are provided on both the fixing frame body and the connecting frames. The fixing plate is used to fixedly connect the fixing frame to the ground.

[0014] Preferably, the number of box bodies is at least one. Fixing strips that can be inserted into the fixing holes are elastically connected to the box bodies. The fixing strips are parallel to the flow direction of the water flow.

[0015] A dynamic water quality analysis method using the described dynamic water quality analysis device includes the following steps:

[0016] S1. Horizontally fix the fixing frame on the ground, with the box body on the fixing frame in the flowing water flow. The length direction of the fixing frame is perpendicular to the flow direction of the water flow.

[0017] S2. Start the moving component so that the test tube without water quality inside follows the fixing ring and moves vertically downward to leave the box body.

[0018] S3. The loading and unloading component makes the gear drive the test tube to rotate, with the tube orifice of the test tube facing the starting direction of the water flow, for the water quality loading work.

[0019] S4. The moving component drives the test tube filled with water quality up into the box body. The test tube rotates to the initial angle and cooperates with the test rod for water quality detection.

[0020] S5. After the water quality detection is completed, start the moving component so that the test tube with water quality inside follows the fixing ring and moves vertically downward to leave the box body.

[0021] S6. The loading and unloading component makes the gear drive the test tube to rotate, with the tube orifice of the test tube facing away from the starting direction of the water flow, for the water quality unloading work.

[0022] The beneficial effects of the present invention compared with the prior art are:

[0023] The present invention realizes the function that the test tube can move intermittently in the vertical direction through the moving component, and realizes the function that the test tubes in two states of being filled with water quality and not filled with water quality rotate in different directions when moving vertically downward through the loading and unloading component, so that the test tube can intermittently complete the water quality detection work in the flowing water flow, thus ensuring the integrity and accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional schematic diagram of a dynamic water quality analysis device Figure 1 ;

[0025] Figure 2 is a three-dimensional schematic diagram of a dynamic water quality analysis device Figure 2 ;

[0026] Figure 3 is a three-dimensional schematic diagram of a box body in a dynamic water quality analysis device;

[0027] Figure 4 is a three-dimensional sectional schematic diagram of a box body in a dynamic water quality analysis device;

[0028] Figure 5 is Figure 4 a partial enlarged schematic diagram of A in;

[0029] Figure 6 is a three-dimensional schematic diagram when a test tube is loaded in a dynamic water quality analysis device;

[0030] Figure 7 is a three-dimensional schematic diagram when a test tube is unloaded in a dynamic water quality analysis device;

[0031] Figure 8 is a three-dimensional schematic diagram of a moving component in a dynamic water quality analysis device;

[0032] Figure 9 is a three-dimensional exploded schematic diagram of a moving component in a dynamic water quality analysis device;

[0033] Figure 10 is Figure 9 a partial enlarged schematic diagram of B in.

[0034] The reference numerals in the figure are:

[0035] 1 - box body;

[0036] 11 - guide frame;

[0037] 12 - fixing strip;

[0038] 2 - detection rod;

[0039] 3 - fixing bracket;

[0040] 31 - fixing frame; 311 - fixing hole;

[0041] 32 - connecting frame;

[0042] 33 - fixing plate;

[0043] 4 - moving component;

[0044] 41 - fixing ring; 411 - first connecting rod; 412 - second connecting rod;

[0045] 42 - gear;

[0046] 43 - first sliding frame; 431 - first wedge block; 432 - second wedge block;

[0047] 44 - First slider; 441 - Fixed protrusion;

[0048] 45 - First spring;

[0049] 46 - Second sliding frame;

[0050] 47 - Second slider;

[0051] 48 - Torsion spring;

[0052] 49 - Servo motor; 491 - Threaded rod;

[0053] 5 - Loading and unloading assembly;

[0054] 51 - First rack;

[0055] 52 - Second rack;

[0056] 53 - Second spring. Detailed implementation mode

[0057] In order to further understand the features, technical means, and specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation modes.

[0058] See Figures 1 to 4 As shown, a dynamic water quality analysis device includes a box body 1 and a detection rod 2. The analysis device further includes a fixing frame 3, a moving component 4, and a loading and unloading component 5. The fixing frame 3 is integrally in the shape of a rectangular frame, the fixing frame 3 is horizontally arranged, the length direction of the fixing frame 3 is perpendicular to the flowing direction of the water flow, the detection rod 2 is fixedly arranged at the center inside the box body 1, the moving component 4 includes a fixing ring 41 and a gear 42. The fixing ring 41 is located directly below the detection rod 2, the fixing ring 41 is movably arranged inside the box body 1 along the vertical direction, the fixing ring 41 is coaxially fixedly sleeved on a test tube, the gear 42 can drive the fixing ring 41 to rotate, the axis of the gear 42 is parallel to the diameter direction of the fixing ring 41, the axis of the gear 42 is parallel to the length direction of the fixing frame 3, the loading and unloading component 5 is fixedly arranged inside the box body 1. When there is no water quality in the test tube, the loading and unloading component 5 causes the gear 42 to rotate forward when moving downward along the vertical direction. When there is water quality in the test tube, the loading and unloading component 5 causes the gear 42 to rotate reversely when moving downward in the vertical direction.

[0059] Place the test tube on the fixing ring 41 and fix it. Then, horizontally fix the fixing frame 3 on the ground. The box body 1 on the fixing frame 3 is in the flowing water. The length direction of the fixing frame 3 is perpendicular to the flowing direction of the water. At this time, an upper half space inside the box body 1 forms a cavity. The detection rod 2 is in the cavity without contacting the water quality. Start the moving component 4. The test tube without water quality follows the fixing ring 41 and moves downward vertically to leave the box body 1. The feeding and discharging component 5 works to make the gear 42 drive the test tube without water quality to rotate forward. The tube orifice of the test tube faces the starting direction of the water flow. The flowing water quality enters the test tube to complete the feeding work. Then, the moving component 4 drives the test tube filled with water quality to move upward into the box body 1. At this time, the test tube rotates to the initial angle under the work of the feeding and discharging component 5 and cooperates with the detection rod 2 to detect the water quality. After the water quality detection is completed, start the moving component 4 to make the test tube filled with water quality follow the fixing ring 41 and move downward vertically to leave the box body 1. At this time, the feeding and discharging component 5 works to make the gear 42 drive the test tube filled with water quality to rotate in the reverse direction. The tube orifice of the test tube deviates from the starting direction of the water flow. The detected water quality flows out of the test tube. Then, the moving component 4 drives the test tube without water quality inside to move upward into the box body 1. The test tube rotates back to the initial angle. Compared with the prior art, the moving component 4 of the present invention enables the test tube to move vertically intermittently. Through the feeding and discharging component 5, the test tubes in two states of being filled with water quality and not filled with water quality inside rotate in different directions when moving vertically downward, so that the test tube can intermittently complete the water quality detection work in the flowing water, thus ensuring the integrity and accuracy of the detection data.

[0060] See Figures 3 to 5 As shown: The feeding and discharging component 5 includes a first rack 51 and a second rack 52. The length directions of the first rack 51 and the second rack 52 are both parallel to the sliding direction of the fixing ring 41. The first rack 51 and the second rack 52 are both slidably connected to the box body 1. The sliding directions of the first rack 51 and the second rack 52 are parallel to the length direction of the fixing frame 3. When there is no water quality in the test tube, the first rack 51 slides towards the center of the box body 1 and meshes with the gear 42. When there is water quality in the test tube, the second rack 52 slides towards the center of the box body 1 and meshes with the gear 42.

[0061] When the test tube without water quality inside moves downward vertically, the first rack 51 moves towards the test tube. At this time, the first rack 51 contacts and meshes with the gear 42, and the second rack 52 does not contact the gear 42. The gear 42 rotates forward under the cooperation of the first rack 51. The mouth of the test tube faces the starting direction of the water flow, and the flowing water quality enters the test tube to complete the feeding work. When the test tube with water quality inside moves downward vertically, the second rack 52 moves towards the test tube. At this time, the second rack 52 contacts and meshes with the gear 42, and the first rack 51 does not contact the gear 42. The gear 42 rotates reversely under the cooperation of the second rack 52. The mouth of the test tube faces away from the starting direction of the water flow, and the tested water quality leaves the test tube to complete the discharging work. Compared with the prior art, the first rack 51 and the second rack 52 of the present invention mesh with the gear 42 respectively when the test tube is in different states, so that when the test tube in different states moves downward, the gear 42 drives the test tube to rotate in two directions.

[0062] See Figure 3 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown in: The moving assembly 4 further includes a first sliding frame 43 and a first sliding bar 44. The first sliding frame 43 is arranged inside the box body 1 so as to be able to move vertically. The first sliding bar 44 is slidably arranged inside the first sliding frame 43. The sliding direction of the first sliding bar 44 is parallel to the sliding direction of the first sliding frame 43. A rotatable first connecting rod 411 connected to the first sliding bar 44 is fixedly arranged on the fixed ring 41. Fixed protrusions 441 are fixedly arranged at the upper and lower ends of the first sliding bar 44 respectively. A first wedge block 431 and a second wedge block 432 that cooperate with the fixed protrusions 441 are elastically connected to the first sliding frame 43. The first wedge block 431 is above the first sliding bar 44. The first wedge block 431 slides along the axis direction of the first connecting rod 411. The first wedge block 431 is magnetically matched with the first rack 51. The second wedge block 432 is below the first sliding bar 44. The second wedge block 432 slides along the axis direction of the first connecting rod 411. The second wedge block 432 is magnetically matched with the second rack 52.

[0063] When the fixed protrusion 441 presses against the inclined surface of the first wedge block 431, the first wedge block 431 moves closer to the first rack 51 along the axis of the gear 42. The first wedge block 431 and the first rack 51 cooperate through magnetic force to make the first rack 51 move closer to the gear 42 along the axis of the gear 42 for meshing. When the second fixed protrusion 441 presses against the inclined surface of the second wedge block 432, the second wedge block 432 moves closer to the second rack 52 along the axis of the gear 42. The second wedge block 432 and the second rack 52 cooperate through magnetic force to make the second rack 52 move closer to the gear 42 along the axis of the gear 42 for meshing. Compared with the prior art, the first wedge block 431 and the second wedge block 432 of the present invention control the movement of the first rack 51 and the second rack 52, so that only one rack meshes with the gear 42 at the same time.

[0064] See Figure 3 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown in: The moving assembly 4 further includes a first spring 45, a second sliding frame 46 and a second sliding bar 47. The second sliding frame 46 and the first sliding frame 43 are arranged in a mirror image at both ends of the fixed ring 41. The second sliding bar 47 is slidably arranged inside the second sliding frame 46. The sliding direction of the second sliding bar 47 is parallel to the sliding direction of the first sliding bar 44. A second connecting rod 412 that can rotate and is connected to the second sliding bar 47 is fixedly arranged on the fixed ring 41. One end of the first spring 45 is fixedly connected to the second sliding frame 46, and the other end of the first spring 45 is fixedly connected to the second sliding bar 47.

[0065] When there is no water quality inside the test tube, the first spring 45 is in a normal state. The second sliding bar 47 and the first sliding bar 44 are at the uppermost position in the second sliding frame 46, and the fixed protrusion 441 cooperates with the first wedge block 431. When there is water quality inside the test tube, the first spring 45 is compressed. The second sliding bar 47 and the first sliding bar 44 are at the lowermost position in the second sliding frame 46, and the fixed protrusion 441 cooperates with the second wedge block 432. Compared with the prior art, the cooperation of the first spring 45, the second sliding frame 46 and the second sliding bar 47 of the present invention enables the movement of the first sliding bar 44 to be controlled by the test tube, so as to ensure that the first rack 51 and the second rack 52 can move respectively for test tubes in different states.

[0066] See Figures 3 to 5 As shown in: The loading and unloading assembly 5 further includes a second spring 53. A second spring 53 is fixedly arranged between the first rack 51 and the box body 1, and a second spring 53 is fixedly arranged between the second rack 52 and the box body 1.

[0067] When the first rack 51 is engaged with the gear 42, the second spring 53 is compressed. When the fixed protrusion 441 no longer contacts the first wedge block 431, the magnetic cooperation between the first wedge block 431 and the first rack 51 is released, and the second spring 53 is released from the compressed state to push the first rack 51 away from the gear 42. The same is true for the second rack 52. Compared with the prior art, the second spring 53 of the present invention limits the initial position of the first rack 51 or the second rack 52, thereby preventing the first rack 51 or the second rack 52 from engaging with the gear 42 when the first wedge block 431 or the second wedge block 432 is not working.

[0068] See also Figure 3 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown: the moving component 4 also includes a torsion spring 48, the gear 42 is coaxially fixedly connected to the end of the first connecting rod 411, one end of the torsion spring 48 is fixedly connected to the gear 42, the other end of the torsion spring 48 is fixedly connected to the first slide bar 44, and the axis of the torsion spring 48 is coaxial with the axis of the gear 42.

[0069] During the downward movement, the torsion spring 48 fixedly connected to the gear 42 is continuously compressed. When the gear 42 moves to the lowest point, the torsion spring 48 is compressed to the maximum extent. At this time, the gear 42 is not engaged with the first rack 51 or the second rack 52, and the torsion spring 48 is released from the compressed state. The test tube that completes the loading or unloading work returns to the initial state. Compared with the prior art, the torsion spring 48 of the present invention ensures that the test tube returns to the initial state after the loading and unloading is completed, thereby facilitating the test tube to work with the detection rod 2 after moving up.

[0070] See also Figure 3 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown: the moving component 4 also includes a servo motor 49, the output shaft of the servo motor 49 is transmission-connected to a threaded rod 491, the axis of the threaded rod 491 is parallel to the height direction of the box body 1, the threaded rod 491 is threadedly connected to the second sliding frame 46, the threaded rod 491 is slidably connected to the second sliding bar 47, and a guide frame 11 slidably connected to the first sliding frame 43 is fixedly provided on the box body 1.

[0071] The servo motor 49 rotates the threaded rod 491. The rotation of the threaded rod 491 causes the second sliding frame 46 to move vertically, thereby driving the first slide bar 44, the second slide bar 47, and the fixed ring 41 to move vertically. Compared with the prior art, the servo motor 49 and the threaded rod 491 of the present invention enable the moving speeds of the test tubes in various states to be consistent, thereby avoiding insufficient water quality or mixing inside the test tubes due to insufficient loading and unloading time.

[0072] See Figures 1 to 3 As shown in the figure: The fixing frame 3 includes a fixing frame 31, a connecting frame 32, and a fixing plate 33. The number of connecting frames 32 is set to be several. Fixing holes 311 for fixing the box body 1 are provided on both the fixing frame 31 and the connecting frame 32. The fixing plate 33 is used to fixedly connect the fixing frame 3 to the ground.

[0073] By connecting different numbers of connecting frames 32, the overall length of the fixing frame 3 is changed, so that the box body 1 fixed in the fixing frame 3 can be moved to any position on the flowing water. Compared with the prior art, the connecting frame 32 and the fixing frame 31 of the present invention cooperate to change the length of the fixing frame 3, thereby being able to change the sampling position.

[0074] See Figures 1 to 3 As shown in the figure: The number of box bodies 1 is at least one. A fixing strip 12 that can be inserted into the fixing hole 311 is elastically connected to the box body 1. The fixing strip 12 is parallel to the flowing direction of the water flow.

[0075] Multiple box bodies 1 are provided for intermittent sampling. Compared with the prior art, the test tubes in the multiple box bodies 1 of the present invention are in different states at the same time, thereby ensuring a relatively long continuity of the water quality data collected and detected and improving the accuracy of the data.

[0076] See Figures 1 to 10 As shown in the figure: A dynamic water quality analysis method, using the described dynamic water quality analysis device, includes the following steps:

[0077] S1. Horizontally fix the fixing frame 3 on the ground. The box body 1 on the fixing frame 3 is in the flowing water, and the length direction of the fixing frame 3 is perpendicular to the flowing direction of the water flow;

[0078] S2. Start the moving component 4 to make the test tube without water quality move vertically downward along with the fixed ring 41 until it leaves the box body 1;

[0079] S3. The loading and unloading component 5 makes the gear 42 drive the test tube to rotate, and the tube orifice of the test tube faces the starting direction of the water flow to perform the water quality loading work;

[0080] S4. The moving component 4 drives the test tube filled with water quality to move upward into the box body 1, and the test tube rotates to the initial angle and cooperates with the detection rod 2 to perform water quality detection;

[0081] S5. After the water quality detection is completed, start the moving component 4 so that the test tube with water quality inside moves vertically downward along with the fixed ring 41 until it leaves the box body 1;

[0082] S6. The loading and unloading component 5 enables the gear 42 to drive the test tube to rotate, and the tube orifice of the test tube faces away from the starting direction of the water flow to perform the unloading work of the water quality.

[0083] Compared with the prior art, the moving component 4 enables the test tube to move intermittently in the vertical direction. Through the loading and unloading component 5, the test tubes in two states, namely with water quality inside and without water quality inside, rotate in different directions when moving vertically downward, so that the test tube can intermittently complete the water quality detection work in the flowing water, thus ensuring the integrity and accuracy of the detection data.

[0084] The above embodiments only represent one or several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A dynamic water quality analysis device, comprising a box body (1) and a test rod, characterized in that, The analysis device further includes a fixing frame (3), a moving component (4) and a loading and unloading component (5); The fixing frame (3) is integrally rectangular frame-shaped, the fixing frame (3) is horizontally arranged, the length direction of the fixing frame (3) is perpendicular to the flowing direction of the water flow, and the test rod is fixedly arranged at the center inside the box body (1); The moving component (4) includes a fixing ring (41) and a gear (42), the fixing ring (41) is directly below the detection rod (2), the fixing ring (41) is arranged inside the box body (1) so as to be movable in the vertical direction, the fixing ring (41) is coaxially fixedly sleeved on the test tube, the gear (42) can drive the fixing ring (41) to rotate, the axis of the gear (42) is parallel to the diameter direction of the fixing ring (41), and the axis of the gear (42) is parallel to the length direction of the fixing frame (3); The loading and unloading component (5) is fixedly arranged inside the box body (1). When there is no water quality in the test tube, the loading and unloading component (5) causes the gear (42) to rotate forward when moving downward in the vertical direction. When there is water quality in the test tube, the loading and unloading component (5) causes the gear (42) to rotate reversely when moving downward in the vertical direction; The loading and unloading component (5) includes a first rack (51) and a second rack (52); The length directions of the first rack (51) and the second rack (52) are both parallel to the sliding direction of the fixing ring (41). The first rack (51) and the second rack (52) are both slidably connected to the box body (1), and the sliding directions of the first rack (51) and the second rack (52) are parallel to the length direction of the fixing frame (3). When there is no water quality in the test tube, the first rack (51) slides towards the center of the box body (1) to engage with the gear (42). When there is water quality in the test tube, the second rack (52) slides towards the center of the box body (1) to engage with the gear (42).

2. The dynamic water quality analysis device according to claim 1, wherein The moving component (4) further includes a first sliding frame (43) and a first sliding bar (44); The first sliding frame (43) is arranged inside the box body (1) so as to be movable in the vertical direction. The first sliding bar (44) is slidably arranged inside the first sliding frame (43), and the sliding direction of the first sliding bar (44) is parallel to the sliding direction of the first sliding frame (43). A first connecting rod (411) which can rotate and is connected to the first sliding bar (44) is fixedly arranged on the fixing ring (41). Fixing protrusions (441) are respectively fixedly arranged at the upper and lower ends of the first sliding bar (44). A first wedge-shaped block (431) and a second wedge-shaped block (432) which cooperate with the fixing protrusions (441) are elastically connected to the first sliding frame (43). The first wedge-shaped block (431) is above the first sliding bar (44), the first wedge-shaped block (431) slides along the axis direction of the first connecting rod (411), and the first wedge-shaped block (431) is magnetically matched with the first rack (51). The second wedge-shaped block (432) is below the first sliding bar (44), the second wedge-shaped block (432) slides along the axis direction of the first connecting rod (411), and the second wedge-shaped block (432) is magnetically matched with the second rack (52).

3. The dynamic water quality analysis device according to claim 2, characterized in that The moving component (4) further includes a first spring (45), a second sliding frame (46) and a second sliding bar (47); The second sliding frame (46) and the first sliding frame (43) are mirror - set at both ends of the fixed ring (41). The second sliding bar (47) is slidably arranged inside the second sliding frame (46). The sliding direction of the second sliding bar (47) is parallel to the sliding direction of the first sliding bar (44). A rotatable second connecting rod (412) connected to the second sliding bar (47) is fixedly arranged on the fixed ring (41). One end of the first spring (45) is fixedly connected to the second sliding frame (46), and the other end of the first spring (45) is fixedly connected to the second sliding bar (47).

4. The dynamic water quality analysis device according to claim 3, characterized in that The loading and unloading component (5) further includes a second spring (53); A second spring (53) is fixedly arranged between the first rack (51) and the box body (1), and a second spring (53) is fixedly arranged between the second rack (52) and the box body (1).

5. The dynamic water quality analysis device according to claim 4, characterized in that The moving component (4) further includes a torsion spring (48); The gear (42) is coaxially and fixedly connected to the end of the first connecting rod (411). One end of the torsion spring (48) is fixedly connected to the gear (42), and the other end of the torsion spring (48) is fixedly connected to the first sliding bar (44). The axis of the torsion spring (48) is coaxial with the axis of the gear (42).

6. The dynamic water quality analysis device according to claim 5, characterized in that, The moving component (4) further includes a servo - motor (49); A threaded rod (491) is drivingly connected to the output shaft of the servo - motor (49). The axis of the threaded rod (491) is parallel to the height direction of the box body (1). The threaded rod (491) is threadedly connected to the second sliding frame (46) and slidably connected to the second sliding bar (47). A guiding frame (11) slidably connected to the first sliding frame (43) is fixedly arranged on the box body (1).

7. The dynamic water quality analysis device according to claim 6, characterized in that, The fixing frame (3) includes a fixing frame (31), a connecting frame (32) and a fixing plate (33); The number of the connecting frames (32) is several. Fixing holes (311) for fixing the box body (1) are provided on both the fixing frame (31) and the connecting frame (32). The fixing plate (33) is used to fixedly connect the fixing frame (3) to the ground.

8. A dynamic water quality analysis device according to claim 7, characterized in that, The number of the box bodies (1) is at least one. A fixing strip (12) which can be inserted into the fixing hole (311) is elastically connected to the box body (1). The fixing strip (12) is parallel to the flowing direction of the water flow.

9. A dynamic water quality analysis method, which uses a dynamic water quality analysis device according to any one of claims 1-8, characterized in that It includes the following steps: S1. Horizontally fix the fixing frame (3) on the ground. The box body (1) on the fixing frame (3) is in the flowing water flow. The length direction of the fixing frame (3) is perpendicular to the flowing direction of the water flow; S2. Start the moving component (4) so that the test tube without water quality inside moves down vertically along with the fixed ring (41) until it leaves the box body (1); S3. The loading and unloading component (5) enables the gear (42) to drive the test tube to rotate, and the tube orifice of the test tube faces the starting direction of the water flow to perform the water quality loading work; S4. The moving component (4) drives the test tube filled with water quality to move up into the box body (1). The test tube rotates to the initial angle and cooperates with the test rod to perform water quality detection; S5. After the water quality detection is completed, start the moving component (4) so that the test tube with water quality inside moves down vertically along with the fixed ring (41) to leave the box body (1); S6. The loading and unloading component (5) enables the gear (42) to drive the test tube to rotate, and the tube orifice of the test tube faces away from the starting direction of the water flow to carry out the water quality unloading work.

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