A COD detection device

Abstract

The utility model relates to COD detection technical field discloses a kind of for COD detection device, including base, the base upper end is equipped with receiving tray, the base upper end one side is equipped with connecting plate, the connecting plate one side is equipped with adjusting assembly, the adjusting assembly includes the motor being equipped in the connecting plate upper end, the motor output end is equipped with carousel. Starting motor can drive carousel rotation, eccentric shaft drives adjusting plate to periodically swing left and right with pivot center as pivot, pivot drives gear periodically clockwise anticlockwise rotation, so that gear drives tooth rod along with sliding sleeve left and right sliding, connecting column drives test tube periodic swing on the upper end of receiving tray, so as to accelerate the mixing of test tube internal sewage and detection reagent, relative to the mixing of mixing rod to test tube, reagent and solution between test tube and test tube do not interfere with each other, so as to avoid to produce error to experimental result, improve the accuracy of detection result.

Description

Technical Field

[0001] This utility model relates to the field of COD detection technology, and in particular to a COD detection device. Background Technology

[0002] COD testing is a common method for wastewater testing. It determines the content of pollutants in water by measuring the amount of oxidant consumed by oxidized substances. Different oxidant concentrations in the test reagents will produce different colors, and the depth of color can be analyzed by the instrument to determine the pollution level of the water.

[0003] CN114199787B, a patented invention, discloses a COD detection device for wastewater treatment, relating to the field of wastewater detection technology. The device includes a detection platform with a support column fixedly connected to its upper end. A detection disk is rotatably connected to the upper end of the support column. The detection disk has six equidistantly distributed mounting openings in a circular pattern, each containing a test tube. A mounting plate is fixedly connected to the upper end of the detection platform, and a burette is fixedly connected to the lower end of the mounting plate. Two compartments and two collection bowls are fixedly connected to the upper end of the detection platform, arranged sequentially around the rotation direction of the detection disk, starting from the mounting plate. A drain pipe connects to the lower end of each test tube. This invention solves the problem of how to replace manual methods for automatically detecting wastewater.

[0004] However, while the stirring shroud in the above device can act as a stirring rod during its movement, stirring the indicator and wastewater in the test tube, solvent will adhere to the stirring shroud after stirring the indicator and wastewater in the test tube. When the stirring shroud stirs other test tubes, the adhered solvent will enter the test tube, affecting the subsequent detection of wastewater in the test tube and thus causing errors. Utility Model Content

[0005] Given that the stirring shroud in the above-mentioned device can act as a stirring rod during its movement, stirring the indicator and wastewater in the test tube, but after stirring the indicator and wastewater in the test tube, solvent will adhere to the stirring shroud. When the stirring shroud stirs other test tubes, the adhered solvent will enter the test tube, affecting the subsequent detection of wastewater in the test tube and causing errors, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A COD detection device includes a base, a receiving plate at the upper end of the base, a connecting plate on one side of the upper end of the base, an adjustment component on one side of the connecting plate, the adjustment component including a motor at the upper end of the connecting plate, a turntable at the output end of the motor, an adjustment plate on the side of the turntable away from the motor, a rotating shaft inserted at the lower end of the adjustment plate, a gear at one end of the rotating shaft, a gear rod at the lower end of the gear, two sets of sliding sleeves fitted on the outer wall of the gear rod, a connecting column fixed at the lower end of the receiving plate, support plates on both sides of the outer wall of the connecting column, an eccentric shaft on the outer wall of the turntable away from the axis, a sliding groove that cooperates with the eccentric shaft at the upper end of the adjustment plate, a burette at the upper end of the base above the receiving plate, and multiple sets of burette tubes connected to the lower end of the burette.

[0007] As a preferred embodiment of the COD detection device of this utility model, the upper end of the receiving plate is provided with multiple sets of fixing components. The fixing components include fixing plates provided on the upper end of the receiving plate. A bidirectional lead screw is rotatably inserted between the fixing plates. One end of the bidirectional lead screw passes through the fixing plate and is fixedly connected to a worm gear. A worm is rotatably connected to one side of the outer wall of the fixing plate. The worm gear and the worm mesh with each other.

[0008] As a preferred embodiment of the COD detection device of this utility model, the outer wall of the bidirectional lead screw is fitted with two sets of symmetrical clamping plates, the clamping plates are provided with threaded holes that cooperate with the bidirectional lead screw, a sliding rod is fixedly provided at one end of the fixed plate opposite to the bidirectional lead screw, the end of the clamping plate away from the bidirectional lead screw is movably fitted on the outer wall of the sliding rod, a test tube is inserted between the two sets of clamping plates, a sealing plug is inserted at the upper end of the test tube, and a placement groove that cooperates with the bottom end of the test tube is provided at the upper end of the receiving plate.

[0009] In a preferred embodiment of the COD detection device of this utility model, the rotating shaft is fixedly inserted at the lower end of the adjusting plate, the end of the rotating shaft away from the gear is rotatably connected to the connecting plate, and the rotating shaft and the middle end of the gear are fixedly connected.

[0010] In a preferred embodiment of the COD detection device of this utility model, the gear and the rack mesh with each other, the outer wall of the sliding sleeve and the connecting plate are fixedly connected, and the two ends of the rack are movably inserted into the middle of the sliding sleeve.

[0011] In a preferred embodiment of the COD detection device of this utility model, the lower end of the support plate is fixedly connected to the base, the front end of the toothed rod is hinged to the lower end of the outer wall of the connecting column, and the outer wall of the connecting column located at the upper end of the toothed rod is rotatably connected to the upper end of the support plate.

[0012] In a preferred embodiment of the COD detection device of this utility model, the eccentric shaft is movably inserted into the slide groove.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects: In this invention, the starting motor drives the turntable to rotate, and the eccentric shaft drives the adjusting plate to swing periodically left and right around the center of the rotating shaft. The rotating shaft drives the gear to rotate periodically clockwise and counterclockwise, thereby the gear drives the rack to slide left and right along the sliding sleeve. The connecting column drives the test tube at the upper end of the receiving plate to swing periodically, thereby accelerating the mixing of sewage and test reagents inside the test tube. Compared with the stirring rod stirring the test tube, the reagents and solutions between the test tubes will not interfere with each other, thereby avoiding errors in the experimental results and improving the accuracy of the test results.

[0014] 2. In this utility model, the wastewater to be tested is placed into test tubes in sequence. Then, the lower end of the test tube is placed into the placement groove opened at the upper end of the receiving plate. Rotating the worm gear can drive the worm wheel to rotate, and the worm wheel drives the double-acting screw to rotate. Two sets of clamping plates slide along the outer wall of the double-acting screw and the slide bar and move closer to each other, fixing and clamping the test tube placed at the upper end of the receiving plate. During the subsequent mixing process of the solution in the test tube, the test tube will not fall off the upper end of the receiving plate, and the setting of the sealing plug prevents the solution inside the test tube from spilling out of the test tube. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the COD detection device of this utility model; Figure 2 This is a three-dimensional structural diagram of the fixing component used in the COD detection device of this utility model; Figure 3 This is a three-dimensional structural diagram of the adjustment component of the present invention used in a COD detection device; Figure 4 This is a three-dimensional structural diagram of the turntable and adjusting plate of the COD detection device of this utility model; Figure 5 This is a three-dimensional structural diagram of the receiving plate used in the COD detection device of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Base; 2. Receiving plate; 3. Fixing assembly; 31. Fixing plate; 32. Two-way lead screw; 33. Clamping plate; 34. Slide rod; 35. Worm gear; 36. Worm; 37. Test tube; 38. Sealing plug; 4. Connecting plate; 5. Adjusting assembly; 501. Motor; 502. Turntable; 503. Adjusting plate; 504. Rotating shaft; 505. Gear; 506. Tooth rack; 507. Sliding sleeve; 508. Connecting column; 509. Support plate; 510. Eccentric shaft; 511. Slide groove; 6. Burette; 7. Burette tube. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0018] Reference Figures 1-5 This is the first embodiment of the present invention, which provides a COD detection device, including a base 1. The base 1 is located on the upper end of a receiving plate 2 and is provided with a burette 6. The lower end of the burette 6 is connected to multiple sets of burette tubes 7. The upper end of the receiving plate 2 is provided with multiple sets of fixing components 3. The fixing components 3 include fixing plates 31 located on the upper end of the receiving plate 2. A bidirectional lead screw 32 is rotatably inserted between the fixing plates 31. One end of the bidirectional lead screw 32 passes through the fixing plate 31 and is fixedly connected to a worm gear 35. A worm 36 is rotatably connected to one side of the outer wall of the fixing plate 31. The worm gear 35 and the worm 36 mesh with each other.

[0019] Two sets of symmetrical clamping plates 33 are fitted on the outer wall of the bidirectional lead screw 32. The clamping plates 33 have threaded holes that mate with the bidirectional lead screw 32. A slide rod 34 is fixed at one end of the fixed plate 31 that is symmetrical with the bidirectional lead screw 32. The end of the clamping plate 33 away from the bidirectional lead screw 32 is movably fitted on the outer wall of the slide rod 34. A test tube 37 is inserted between the two sets of clamping plates 33. A sealing plug 38 is inserted at the upper end of the test tube 37. A placement groove that mates with the bottom end of the test tube 37 is opened at the upper end of the receiving plate 2.

[0020] The wastewater to be tested is placed sequentially into test tube 37. Then, the lower end of test tube 37 is placed into the placement groove on the upper end of the receiving plate 2. Rotating the worm gear 36 drives the worm wheel 35 to rotate, which in turn drives the double-acting screw 32 to rotate. The two sets of clamping plates 33 slide along the outer walls of the double-acting screw 32 and the slide bar 34, bringing them closer together to fix and hold the test tube 37 placed on the upper end of the receiving plate 2. After the test reagent in the burette 6 drips into the wastewater in test tube 37, the sealing plug 38 is inserted into the upper end of test tube 37 to seal the test tube. 37 is sealed. Through the above operation, during the subsequent mixing of the solution in test tube 37, test tube 37 will not fall off the upper end of the receiving plate 2. The sealing plug 38 prevents the solution inside test tube 37 from spilling out. After the test is completed, the worm gear 36 can be rotated in the opposite direction, and the two sets of clamps 33 will move away from each other, releasing the fixation of test tube 37. This makes it easy to disassemble test tube 37, which facilitates subsequent testing experiments. Disassembling test tube 37 also makes it easier to clean and maintain it. Example 2

[0021] Reference Figures 1-5This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that: a connecting plate 4 is provided on one side of the upper end of the base 1, and an adjustment component 5 is provided on one side of the connecting plate 4. The adjustment component 5 includes a motor 501 located on the upper end of the connecting plate 4. A turntable 502 is provided at the output end of the motor 501. An adjustment plate 503 is provided on the side of the turntable 502 away from the motor 501. A rotating shaft 504 is inserted into the lower end of the adjustment plate 503. A gear 505 is provided at one end of the rotating shaft 504. A toothed rod 506 is provided at the lower end of the gear 505. Two sets of sliding sleeves 507 are sleeved on the outer wall of the toothed rod 506. A connecting column 508 is fixedly provided at the lower end of the receiving plate 2. Support plates 509 are provided on both sides of the outer wall of the connecting column 508. An eccentric shaft 510 is provided on the outer wall of the turntable 502 away from the axis. A sliding groove 511 that cooperates with the eccentric shaft 510 is opened at the upper end of the adjustment plate 503.

[0022] The rotating shaft 504 is fixedly inserted at the lower end of the adjusting plate 503. The end of the rotating shaft 504 away from the gear 505 is rotatably connected to the connecting plate 4, and the middle ends of the rotating shaft 504 and the gear 505 are fixedly connected.

[0023] Gear 505 and rack 506 mesh with each other, the outer wall of sliding sleeve 507 is fixedly connected to connecting plate 4, and the two ends of rack 506 are movably inserted into the middle of sliding sleeve 507.

[0024] The lower end of the support plate 509 is fixedly connected to the base 1, the front end of the toothed rod 506 is hinged to the lower end of the outer wall of the connecting column 508, and the outer wall of the connecting column 508 located at the upper end of the toothed rod 506 is rotatably connected to the upper end of the support plate 509.

[0025] The eccentric shaft 510 is movably inserted in the slide groove 511.

[0026] Starting the motor 501 drives the turntable 502 to rotate. The turntable 502 drives the eccentric shaft 510 to rotate around its center. This causes the eccentric shaft 510 to periodically slide along the slide groove 511. During this periodic sliding, the eccentric shaft 510 drives the adjusting plate 503 to periodically oscillate left and right around the center of the rotating shaft 504. This causes the rotating shaft 504 to periodically rotate clockwise and counterclockwise. The rotating shaft 504 then drives the gear 505 to rotate clockwise and counterclockwise periodically. Because the gear 505 and the rack 506 mesh, the rack 506 rotates as the turntable 502 rotates. 506 slides left and right along the sliding sleeve 507. Since the front end of the toothed rod 506 is hinged to the connecting column 508, and the upper outer wall of the connecting column 508 is rotatably connected to the upper end of the support plate 509, the connecting column 508 rotates left and right periodically along the upper end of the support plate 509. As a result, the connecting column 508 drives the test tube 37 at the upper end of the receiving plate 2 to swing periodically, thereby accelerating the mixing of sewage and test reagent inside the test tube 37. This facilitates the acceleration of the reaction speed of sewage and test reagent. Compared with the stirring rod stirring the test tube 37, the reagents and solutions between the test tubes 37 will not interfere with each other, thereby avoiding errors in the experimental results and improving the accuracy of the test results.

[0027] The remaining structure is the same as that in Example 1. It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A COD detection device, comprising a base (1), characterized in that: The base (1) has a receiving plate (2) on its upper end, a connecting plate (4) on one side of the upper end of the base (1), and an adjusting component (5) on one side of the connecting plate (4). The adjusting component (5) includes a motor (501) located on the upper end of the connecting plate (4). A turntable (502) is located at the output end of the motor (501). An adjusting plate (503) is located on the side of the turntable (502) away from the motor (501). A rotating shaft (504) is inserted into the lower end of the adjusting plate (503). A gear (505) is located at one end of the rotating shaft (504). The lower end is provided with a toothed rod (506), and the outer wall of the toothed rod (506) is fitted with two sets of sliding sleeves (507). The lower end of the receiving plate (2) is fixedly provided with a connecting column (508). The outer walls of the connecting column (508) are provided with support plates (509). The outer wall of the turntable (502) away from the axis is provided with an eccentric shaft (510). The upper end of the adjusting plate (503) is provided with a sliding groove (511) that cooperates with the eccentric shaft (510). The base (1) is located at the upper end of the receiving plate (2) and is provided with a burette (6). The lower end of the burette (6) is connected to multiple sets of burette tubes (7).

2. The COD detection device according to claim 1, characterized in that: The upper end of the receiving plate (2) is provided with multiple sets of fixing components (3). The fixing components (3) include a fixing plate (31) located on the upper end of the receiving plate (2). A two-way screw (32) is rotatably inserted between the fixing plates (31). One end of the two-way screw (32) passes through the fixing plate (31) and is fixedly connected to a worm gear (35). A worm (36) is rotatably connected to one side of the outer wall of the fixing plate (31). The worm gear (35) and the worm (36) mesh with each other.

3. The COD detection device according to claim 2, characterized in that: The outer wall of the bidirectional lead screw (32) is fitted with two sets of symmetrical clamping plates (33). The clamping plates (33) have threaded holes that cooperate with the bidirectional lead screw (32). The fixed plate (31) is fixed with a slide rod (34) at one end opposite to the bidirectional lead screw (32). The end of the clamping plate (33) away from the bidirectional lead screw (32) is movably fitted on the outer wall of the slide rod (34). A test tube (37) is inserted between the two sets of clamping plates (33). A sealing plug (38) is inserted at the upper end of the test tube (37). The upper end of the receiving plate (2) has a placement groove that cooperates with the bottom end of the test tube (37).

4. The COD detection device according to claim 1, characterized in that: The rotating shaft (504) is fixedly inserted at the lower end of the adjusting plate (503). The end of the rotating shaft (504) away from the gear (505) is rotatably connected to the connecting plate (4). The rotating shaft (504) and the gear (505) are fixedly connected at the middle.

5. The COD detection device according to claim 1, characterized in that: The gear (505) and the rack (506) mesh with each other, the outer wall of the sliding sleeve (507) and the connecting plate (4) are fixedly connected, and the two ends of the rack (506) are movably inserted into the middle of the sliding sleeve (507).

6. The COD detection device according to claim 1, characterized in that: The lower end of the support plate (509) is fixedly connected to the base (1), the front end of the toothed rod (506) is hinged to the lower end of the outer wall of the connecting column (508), and the outer wall of the connecting column (508) located at the upper end of the toothed rod (506) is rotatably connected to the upper end of the support plate (509).

7. The COD detection device according to claim 1, characterized in that: The eccentric shaft (510) is movably inserted in the slide groove (511).

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