Water quality testing equipment

Abstract

The present application discloses a water quality testing device, including: an equipment frame, the equipment frame having a mounting plate; a first mechanical arm; a syringe pump mounted on the first mechanical arm; a second mechanical arm; an electric gripper mounted on the second mechanical arm; a stirrer for stirring a water sample; a dosing, shaking and opening device having a dosing component, a shaking mechanism and an opening mechanism; a digestion instrument mounted on the mounting plate for heating and shaking a test tube; a cuvette for placing a digested sample; a detection mechanism mounted on the equipment frame for detecting the sample of the cuvette; and a cleaning device for cleaning the test tube, the test tube cover and the cuvette. The present application sets two mechanical arms to respectively install the syringe pump and the electric gripper, so that the actions of the syringe pump and the electric gripper are independent of each other, which can improve the detection efficiency.

Description

Technical Field

[0001] The invention relates to the field of detection, and in particular to a water quality detection device. Background Art

[0002] Municipal sewage treatment plants and other places require laboratory technicians to test sewage inlet and outlet samples every day, such as testing COD, BOD, total nitrogen, total phosphorus and other indicators. Manual testing is costly, and the accuracy of test results is poor due to the large number of errors and uncertainties in manual operations.

[0003] In order to solve the above problems, water quality testing equipment can be used for testing. The existing water quality testing equipment drives the integrated clamping jaws and injection pump to move synchronously through a three-coordinate linear guide mechanism. This structural form leads to low movement efficiency. Summary of the invention

[0004] In view of the above problems, the present invention provides a water quality detection device.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A water quality testing device, comprising:

[0007] an equipment rack, the equipment rack having a mounting plate;

[0008] A first robotic arm, mounted on an equipment rack;

[0009] A syringe pump, mounted on the first robotic arm;

[0010] A second robotic arm, mounted on the equipment rack;

[0011] An electric gripper, mounted on the second robotic arm;

[0012] A stirrer, mounted on the mounting plate, for stirring the water sample;

[0013] The drug adding, shaking and uncapping device comprises a drug adding component, a shaking mechanism and an uncapping mechanism, wherein the drug adding component is used to add drugs to the test tube, the shaking mechanism is used to shake the liquid in the test tube, and the uncapping mechanism is used to screw the test tube cover into the test tube and unscrew the test tube cover out of the test tube;

[0014] A digestion instrument, mounted on the mounting plate, for heating the shaken test tube;

[0015] Cuvette, used to place the digested sample;

[0016] A detection mechanism, mounted on the equipment frame, for detecting the sample in the colorimetric dish; and

[0017] A cleaning device, used for cleaning the test tube, the test tube cover and the cuvette;

[0018] The first robotic arm and the second robotic arm both include a vertical lifting module, a first rotating arm and a second rotating arm. The vertical lifting module has a rotating shaft seat that can be lifted up and down. One end of the first rotating arm is rotatably mounted on the rotating shaft seat. A first driving motor for driving the first rotating arm to rotate is installed between the first rotating arm and the rotating shaft seat. The other end of the first rotating arm is rotatably matched with one end of the second rotating arm. A second driving motor for driving the second rotating arm to rotate is installed between the first rotating arm and the second rotating arm. The injection pump is installed on the second rotating arm of the first robotic arm, and the electric gripper is installed on the second rotating arm of the second robotic arm.

[0019] Compared with the existing three-coordinate linear guide mechanism, the robotic arm structure of the present application occupies a smaller installation area, so two can be set up more conveniently; by setting up two robotic arms to respectively install the injection pump and the electric gripper, the actions of the injection pump and the electric gripper are independent of each other, which can improve the detection efficiency.

[0020] In one embodiment of the present invention, a camera is also installed on the second robotic arm of the first robotic arm, and the camera is used to detect the operation status of the water quality detection equipment.

[0021] In one embodiment of the present invention, it also includes a test tube holder, a test tube cover holder and a cuvette holder installed on a mounting plate; a needle cleaning assembly is arranged on the mounting plate, the needle cleaning assembly has a plurality of water tanks, and a water inlet is provided at the bottom of the water tank.

[0022] One of the business processes of the water quality testing equipment of the present application is as follows: the operator puts the water sample to be tested into a beaker, puts the beaker into a stirrer for stirring (preferably a magnetic stirrer), then the first robotic arm moves, driving the injection pump to absorb the water sample in the beaker and inject it into the test tube, the second robotic arm puts the test tube into the shaking mechanism, the dosing component adds the agent into the test tube, the cover opening mechanism screws the test tube cover into the test tube, and the shaking mechanism shakes it, after the shaking is completed, the second robotic arm moves the test tube into the digestion instrument for digestion, after digestion, puts it into the test tube rack for cooling and setting the time, then opens the test tube cover, the injection pump sucks the water sample in the test tube into the cuvette, and the cuvette is put into the testing mechanism for testing, during which the used test tube cover, test tube and cuvette are cleaned by the cleaning device.

[0023] In one embodiment of the present invention, the electric gripper comprises:

[0024] A motor frame is mounted on the second rotating arm of the second mechanical arm;

[0025] A clamping frame, rotatably mounted on the motor frame;

[0026] A clamping jaw motor, used for driving the clamping frame to rotate;

[0027] A guide rod mounted on the clamping frame;

[0028] Two clamping jaws, the sliding sleeves are on the guide rod, and can move along the length direction of the guide rod. The clamping jaws are provided with limiting notches, and the bottom wall of the limiting notches is inclined;

[0029] A top block is embedded in the limiting recesses of the two clamping jaws, and the top block has two driving surfaces respectively contacting and cooperating with the bottom walls of the corresponding limiting recesses, and the top block also has a threaded hole running through it;

[0030] A screw motor is installed on the clamping frame. The output shaft of the screw motor is threadedly matched with the threaded hole of the top block. When the screw motor is working, it can drive the top block to move up and down. When the top block moves down, it drives the two clamping claws to move away from each other; and

[0031] The tension spring has two ends respectively mounted on the two clamping jaws, and is used to make the two clamping jaws have a tendency to move closer to each other.

[0032] In one embodiment of the present invention, the dosing, shaking and lid opening device includes a mounting platform installed on an equipment frame, the dosing component, the shaking mechanism and the lid opening mechanism are installed on the mounting platform, the mounting platform has a table, and the dosing component includes:

[0033] The dosing plate is located above the table, and has a rotating end and a dosing end. The dosing plate has a plurality of dosing holes arranged at intervals at the dosing end, and the dosing holes are used to fix the liquid outlet end of the medicine tube;

[0034] A hollow rotating shaft, fixed to the rotating end of the medicine adding disk, the hollow rotating shaft is used for each medicine tube to pass through; and

[0035] A dosing motor, used for driving the hollow rotating shaft to rotate, and located below the platform; and

[0036] The waste liquid tray is arranged on the table and is located below the dosing end of the dosing tray. The dosing tray has an initial working position. In the initial working position, each dosing hole is located directly above the waste liquid tray.

[0037] In one embodiment of the present invention, the platform further has a strip-shaped avoidance opening, one end of which is adjacent to one end of the waste liquid tray; the shaking mechanism is used to clamp the test tube passing through the strip-shaped avoidance opening and drive the test tube to shake back and forth in the strip-shaped avoidance opening; the shaking mechanism includes:

[0038] Mounting seat;

[0039] A swing frame, rotatably mounted on the mounting seat;

[0040] A swing motor, used for driving the swing frame to swing;

[0041] A limiting base, fixed on the swing frame, is used to limit the bottom of the test tube;

[0042] Two sets of clamping components are movably mounted on the swing frame;

[0043] an elastic element, cooperating with the two groups of clamping assemblies, and used to bring the two groups of clamping assemblies closer to each other and clamp the outer side wall of the test tube; and

[0044] The unlocking component is used to move the two sets of clamping components away from each other so that the test tube is no longer clamped.

[0045] In one embodiment of the present invention, the test tube cover comprises a test tube cover body, the upper end of the test tube cover body is uniformly provided with a plurality of positioning grooves around its own axis direction, and the outer side wall of the test tube cover body also has an annular limiting groove;

[0046] The cover opening mechanism comprises:

[0047] Mounting frame;

[0048] A lifting seat, slidably mounted on the mounting frame;

[0049] A lifting element, used for driving the lifting seat to move up and down;

[0050] A cover opening assembly, mounted on the lifting seat and located above the two sets of clamping assemblies, and used to drive the test tube cover to rotate;

[0051] An anti-dropping member having a snap-in opening for snapping into a limiting groove of a test tube cover; and

[0052] The anti-dropping piece telescopic element is installed on the lifting seat and is used to drive the anti-dropping piece to move horizontally, close to or away from the test tube cover;

[0053] The cover opening assembly comprises:

[0054] A rotating cover capable of rotating about an axis;

[0055] A bayonet, mounted on the rotating cover, the bayonet being used to be inserted into a positioning groove of the test tube cover; and

[0056] The rotary motor is used to drive the rotary cover to rotate.

[0057] In one embodiment of the present invention, the mounting plate has a through hole, the detection mechanism is located in the equipment rack and below the mounting plate, and the detection mechanism includes:

[0058] The housing has an inlet and an outlet at the upper end, and the inlet and the outlet correspond to the through port;

[0059] An ultraviolet spectrophotometer is located in the housing, and has a detection cavity. The ultraviolet spectrophotometer also has a sliding cover that can slide, and the sliding cover is used to close or open the detection cavity;

[0060] An opening and closing structure, used to drive the sliding cover to open or close;

[0061] A detection bracket is slidably mounted in the detection cavity, the detection bracket is used to define the cuvette, and the detection bracket has a material receiving work position that passes out of the detection cavity after moving upward and a detection work position that is located in the detection cavity after moving downward; and

[0062] The detection bracket lifting assembly is used to drive the detection bracket to move up and down.

[0063] In one embodiment of the present invention, the cleaning device includes a cleaning tank, a cuvette cleaning mechanism and a test tube cleaning mechanism; the cuvette cleaning mechanism includes:

[0064] A cuvette cover is placed on the cuvette, and the cuvette cover has a detection opening for exposing the side wall of the cuvette;

[0065] a first rotating element;

[0066] a first cleaning fixture, mounted on the rotating shaft of the first rotating element and driven to rotate by the first rotating element, the first cleaning fixture being used to fix the cuvette sleeve, and the first cleaning fixture being located above the bottom wall of the cleaning tank;

[0067] A cleaning member, located below the first cleaning fixing member, having an air outlet passage, an outlet of the air outlet passage facing the first cleaning fixing member, and the outlet of the air outlet passage being located above the bottom wall of the cleaning tank;

[0068] a fan, wherein an air outlet of the fan is connected to the air outlet channel; and

[0069] A spray pipe is installed in the cleaning member, the upper end of the spray pipe is located at the outlet of the air outlet channel, and the spray pipe is used to spray cleaning liquid toward one side of the first cleaning fixture;

[0070] The test tube cleaning mechanism comprises:

[0071] a second rotating element;

[0072] a second cleaning fixture, mounted on the rotating shaft of the second rotating element and driven to rotate by the second rotating element, the second cleaning fixture being used to fix the test tube, and the second cleaning fixture being located above the bottom wall of the cleaning tank;

[0073] a cleaning tube, located below the second cleaning fixture, and used for spraying cleaning liquid into the test tube; and

[0074] A cleaning tube lifting assembly, used to drive the cleaning tube to move up and down and extend into the test tube;

[0075] The cleaning device also includes a test tube cover cleaning groove, wherein the test tube cover cleaning groove has a plurality of clamping plates distributed around an axis, wherein the clamping plates are used for inserting the test tube cover, wherein the bottom of the test tube cover cleaning groove has at least one cleaning liquid hole, and the bottom or side wall of the test tube cover cleaning groove has at least one air outlet hole, wherein the air outlet hole is used for blowing air toward the test tube cover to dry the test tube cover.

[0076] In one embodiment of the present invention, the outer contour of the cross-section of the cuvette is rectangular, and the cuvette sleeve includes a head and a U-shaped portion located below the head, the head has a rectangular hole adapted to the cuvette, and the U-shaped portion is used to abut against the bottom wall and two opposite side walls of the cuvette.

[0077] The beneficial effects of the present invention are: compared with the existing three-coordinate linear guide mechanism, the robotic arm structure of the present application occupies a smaller installation area and therefore two can be more conveniently set up; by setting up two robotic arms to respectively install the injection pump and the electric gripper, the actions of the injection pump and the electric gripper are independent of each other, which can improve the detection efficiency; all mechanisms of the water quality detection equipment of the present application are independent units and can be installed in combination. The functions of the water quality detection equipment are not limited to the above functions, and different functions can be achieved by replacing the units. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 It is a schematic diagram of the structure of water quality testing equipment;

[0079] Figure 2 This is a structural diagram of the water quality testing equipment from another angle;

[0080] Figure 3 is a schematic diagram of a test tube and a test tube cap;

[0081] Figure 4 is a schematic diagram of a test tube cover;

[0082] Figure 5 is a schematic diagram of an electric gripper;

[0083] Figure 6 It is a top view of the electric gripper;

[0084] Figure 7 yes Figure 6 AA section view;

[0085] Figure 8 It is a partial structural diagram of the electric gripper;

[0086] Fig. 9 It is a schematic diagram of the structure of the cleaning device;

[0087] Fig.10 is a schematic diagram of the test tube cover after it is placed into the test tube cover cleaning groove;

[0088] Fig.11 is a top view of the cleaning device;

[0089] Fig.12 yes Fig.11 BB cross-sectional view;

[0090] Fig.13 is a schematic diagram of the cuvette set after being inserted into the first cleaning fixture;

[0091] Fig.14 is a schematic diagram of a first cleaning fixture;

[0092] Fig.15 is a schematic diagram of a cuvette being loaded into a cuvette sleeve;

[0093] Fig.16 is a schematic diagram of a cuvette and a cuvette sleeve;

[0094] Fig.17 is a schematic diagram of the cleaning pipe;

[0095] Fig.18 It is a schematic diagram of the device for adding medicine, shaking and opening the cover;

[0096] Fig.19 This is a partial exploded view of the device for adding medicine, shaking and opening the cover;

[0097] Fig. 20 It is a structural diagram of the shaking mechanism;

[0098] Fig.21 It is a partial exploded diagram of the shaking mechanism;

[0099] Fig. 22 It is a schematic diagram of the unlocking rod extending out of the two sets of clamping components and opening;

[0100] Fig.23 is a schematic diagram showing the unlocking rod being retracted and the two sets of clamping components being brought together;

[0101] Fig.24 is a top view of the switch mechanism;

[0102] Fig.25 yes Fig.24 CC section view;

[0103] Fig.26 is a schematic diagram of the cover opening mechanism;

[0104] Fig. 27 is a schematic diagram of the cover opening mechanism and the test tube cover;

[0105] Fig.28 yes Fig.26 The enlarged view of point D in the middle;

[0106] Fig.29 yes Fig. 27 Enlarged view of point E in the middle;

[0107] Fig.30 It is a schematic diagram of the structure of the testing organization;

[0108] Fig.31 It is a structural diagram of the detection mechanism from another angle;

[0109] Fig.32 It is an exploded view of the testing mechanism.

[0110] The reference numerals in the figures are:

[0111] 1. Cuvette sleeve; 2. Cuvette; 3. Detection opening; 4. First rotating element; 5. First cleaning fixture; 6. Cleaning part; 7. Air outlet channel; 8. Outlet; 9. Fan; 10. Air outlet; 11. Injection pipe; 12. First connecting channel; 13. Second connecting channel; 14. Water inlet pipe joint; 15. Drain port; 16. Control valve; 17. First limiting groove; 18. First pressing block; 19. Head; 20. U-shaped portion; 21. Rectangular hole; 22. Cleaning tank; 23. First concave area; 24. Second concave area; 25. Third concave area; 26. Drain hole; 27. Second rotating element; 28. Second cleaning fixture; 29. ​​Cleaning tube; 30. Cleaning tube lifting assembly; 31. Closing plate; 32. First spray hole; 33. Second spray hole; 34. Second limiting groove; 35. Second pressing block; 36. Sealing joint; 37. Sealing ring; 38. Cleaning device; 40. Test tube cover cleaning groove; 41. Clamping sheet; 42. Cleaning liquid hole; 43. Air outlet; 44. Equipment rack; 45. Mounting plate; 46. First mechanical arm; 47. Injection pump; 48. Second mechanical arm; 49. Agitator; 50. Adding and shaking device for opening the cover; 51. Digestion instrument; 52. Vertical lifting module; 53. First rotating arm; 54. Second rotating arm; 55. Rotating shaft seat; 56. First driving motor; 57. Second driving motor; 58. Camera; 59. Test tube support; 60. Test tube cover support; 61. Cuvette support; 62. Needle cleaning assembly; 63. Sink; 65. Passing port; 66. Test tube cover body; 67. Positioning groove; 68. Limiting groove; 69. First convex ring; 70. Second convex ring; 71. Opening mechanism; 72. Mounting frame; 73. Lifting seat; 74. Lifting element; 75. Opening assembly; 76. Anti-slip part; 77. Bayonet; 78. Anti-slip telescopic element; 79. Rotating cover; 80. Rotating motor; 81. Switching motor; 82. Bayonet; 83. Elastic member; 84. Pin; 85. Groove; 86. Pin slot; 87. Telescopic rod; 88. Lower limit ring; 89. Upper limit ring; 90. Horizontal part; 91. Vertical part; 92. Shaking mechanism; 93. Swinging frame; 94. Swinging motor; 95. Limiting base; 96. Clamping assembly; 97. Unlocking assembly; 98. Guide sleeve; 99. Curved silicone pad; 100. Test tube; 101. Test tube cover; 102. Mounting seat; 103. Guide rod; 104. Anti-slip part; 105. Unlocking rod; 106. Unlocking element; 107. Conical part; 108. Guide surface; 109. Mounting table; 110. Electric clamp; 111, clamping frame; 112, guide rod; 113, clamping claw; 114, limiting notch; 115, bottom wall of limiting notch; 116, top block; 117, driving surface; 118, threaded hole; 119, screw motor; 120, output shaft of screw motor; 121, motor frame; 122, clamping claw motor; 123, limiting block; 124, sliding part; 125, clamping claw part; 126, working part;127, flip edge; 128, dosing assembly; 129, dosing plate; 130, rotating end; 131, dosing end; 132, dosing hole; 133, hollow rotating shaft; 134, dosing motor; 135, fastening hole; 136, waste liquid tray; 138, table; 139, strip avoidance; 141, detection mechanism; 142, shell; 143, entrance and exit; 144, ultraviolet spectrophotometer; 145, detection cavity; 146, sliding cover; 147, opening and closing structure; 148, detection bracket; 149, detection bracket lifting assembly; 150, slot; 151, block; 152, threaded rod; 153, slide rod; 154, slider; 155, moving seat; 156, opening and closing motor; 157, limit rod; 158, screw rod; 159, ball nut; 160, lifting motor. ; DETAILED DESCRIPTION

[0112] The present invention is described in detail below in conjunction with the accompanying drawings.

[0113] like Figure 1 and 2 As shown, a water quality detection device comprises:

[0114] an equipment rack 44 having a mounting plate 45;

[0115] A first mechanical arm 46 is mounted on the equipment rack 44;

[0116] A syringe pump 47 is mounted on the first mechanical arm 46;

[0117] A second mechanical arm 48 is mounted on the equipment rack 44;

[0118] An electric gripper 110 mounted on the second mechanical arm 48;

[0119] A stirrer 49, mounted on the mounting plate 45, for stirring the water sample;

[0120] The drug adding, shaking and uncapping device 50 comprises a drug adding component 128, a shaking mechanism 92 and an uncapping mechanism 71. The drug adding component 128 is used to add drugs to the test tube 100. The shaking mechanism 92 is used to shake the liquid in the test tube 100. The uncapping mechanism 71 is used to screw the test tube cover 101 into the test tube 100 and unscrew the test tube cover 101 out of the test tube 100.

[0121] A digestion apparatus 51, mounted on the mounting plate 45, for heating the shaken test tube 100;

[0122] Cuvette 2, used to place the digested sample;

[0123] A detection mechanism 141, mounted on the equipment rack 44, for detecting the sample of the colorimetric dish 2; and

[0124] A cleaning device 38, used for cleaning the test tube 100, the test tube cover 101 and the cuvette 2;

[0125] The first robotic arm 46 and the second robotic arm 48 both include a vertical lifting module 52, a first rotating arm 53 and a second rotating arm 54. The vertical lifting module 52 has a rotating shaft seat 55 that can be lifted up and down. One end of the first rotating arm 53 is rotatably mounted on the rotating shaft seat 55. A first driving motor 56 for driving the first rotating arm 53 to rotate is installed between the first rotating arm 53 and the rotating shaft seat 55. The other end of the first rotating arm 53 is rotatably matched with one end of the second rotating arm 54. A second driving motor 57 for driving the second rotating arm to rotate is installed between the first rotating arm 53 and the second rotating arm 54. The injection pump 47 is installed on the second rotating arm 54 of the first robotic arm 46, and the electric clamp 110 is installed on the second rotating arm 54 of the second robotic arm 48.

[0126] Compared with the existing three-coordinate linear guide mechanism, the robot arm structure of the present application occupies a smaller installation area, so two can be set up more conveniently; by setting up two robot arms to respectively install the injection pump 47 and the electric gripper 110, the actions of the injection pump 47 and the electric gripper 110 are independent of each other, which can improve the detection efficiency.

[0127] like Figure 1 As shown, in this embodiment, a camera 58 is also installed on the second robotic arm 48 of the first robotic arm 46, and the camera 58 is used to detect the operation status inside the water quality detection equipment.

[0128] like Figure 1 and 2 As shown, in this embodiment, a test tube support 59 , a test tube cover support 60 and a cuvette support 61 mounted on the mounting plate 45 are also included.

[0129] like Figure 2 A needle cleaning assembly 62 is provided on the mounting plate 45. The needle cleaning assembly 62 has a plurality of water tanks 63. The bottom of the water tank 63 has a water inlet (omitted and not marked in the figure).

[0130] One of the business processes of the water quality testing equipment of the present application is as follows: the operator puts the water sample to be tested into a beaker, puts the beaker into the stirrer 49 for stirring (preferably a magnetic stirrer 49), then the first mechanical arm 46 moves, drives the injection pump 47 to absorb the water sample in the beaker and inject it into the test tube 100, the second mechanical arm 48 puts the test tube 100 into the shaking mechanism 92, the dosing component 128 adds the medicine into the test tube 100, the cover opening mechanism 71 screws the test tube cover 101 into the test tube 100, and the shaking mechanism 92 shakes it, after the shaking is completed, the second mechanical arm 48 moves the test tube 100 into the digestion instrument 51 for digestion, and after digestion, puts the test tube 100 into the rack for cooling down for a set time, and then after the test tube cover 101 is opened, the injection pump 47 The water sample in the test tube 100 is sucked out and put into the cuvette 2 , and the cuvette 2 is put into the detection mechanism 141 for detection. During this period, the used test tube cover 101 , the test tube 100 and the cuvette 2 are cleaned by the cleaning device 38 .

[0131] like Figure 3 and 4 As shown, the test tube cover 101 is threadedly connected to the upper end of the test tube 100, and the test tube cover 101 includes a test tube cover body 66, and the upper end of the test tube cover body 66 is evenly distributed with a plurality of positioning grooves 67 around its own axis direction, and the outer side wall of the test tube cover body 66 also has an annular limiting groove 68. The upper end of the test tube cover body 66 has a first convex ring 69, and the positioning groove 67 is arranged on the first convex ring 69.

[0132] In this embodiment, the positioning groove 67 is an arc-shaped recess located on the outer side wall of the first protruding ring 69 .

[0133] In this embodiment, the side wall of the test tube cover body 66 has a second protruding ring 70 . The second protruding ring 70 is located below the first protruding ring 69 . The first protruding ring 69 and the second protruding ring 70 form a limiting groove 68 .

[0134] like Figure 2 , 5 , 6, 7 and 8, in this embodiment, the electric gripper 110 includes:

[0135] The motor frame 121 is mounted on the second rotating arm 54 of the second mechanical arm 48;

[0136] The clamping frame 111 is rotatably mounted on the motor frame 121;

[0137] The clamping jaw motor 122 is used to drive the clamping frame 111 to rotate;

[0138] A guide rod 112 is mounted on the clamping frame 111;

[0139] Two clamping jaws 113 are slidably sleeved on the guide rod 112 and can move along the length direction of the guide rod 112. The clamping jaws 113 are provided with a limiting notch 114, and the bottom wall 115 of the limiting notch is inclined;

[0140] The top block 116 is embedded in the limiting recesses 114 of the two clamping jaws 113. The top block 116 has two driving surfaces 117 that are respectively in contact with the bottom walls 115 of the corresponding limiting recesses. The top block 116 also has a threaded hole 118 that penetrates therethrough.

[0141] The screw motor 119 is mounted on the clamping frame 111. The output shaft 120 of the screw motor is threadedly matched with the threaded hole 118 of the top block 116. When the screw motor 119 is working, it can drive the top block 116 to move up and down. When the top block 116 moves down, it drives the two clamping claws 113 to move away from each other; and

[0142] The tension spring has two ends respectively mounted on the two clamping jaws 113, so as to make the two clamping jaws 113 have a tendency to move closer to each other.

[0143] The electric clamp 110 is controlled by a screw motor 119, which is easier to arrange than a pneumatic structure; the driving surface 117 of the top block 116 is combined with the bottom wall 115 of the inclined limit notch, so that the up and down movement of the top block 116 can be converted into the horizontal movement of the clamp 113, that is, the opening and closing adjustment of the clamp 113 is achieved through the cooperation of the top block 116 and the tension spring; the rotation of the clamp motor 122 can drive the clamp 113 to rotate. In actual use, the movement spacing of the clamp can be changed to indirectly change the expansion and contraction amount of the spring, so as to achieve the effect of changing the clamping force of the clamp.

[0144] like Figure 7 and 8 As shown, in this embodiment, a limit block 123 fixed on the clamping frame 111 is further included, and the end of the output shaft 120 of the screw motor is inserted into the limit block 123 and rotatably cooperates with the limit block 123 .

[0145] In this embodiment, there are multiple guide rods 112, and the guide rods 112 are circular guide rods 112. The clamping jaw 113 includes a sliding portion 124 that cooperates with the guide rod 112 and a clamping jaw portion 125 that cooperates with the test tube 100 or the test tube cover 101. The clamping jaw portion 125 has an arc-shaped working portion 126, and the lower end of the working portion 126 has a turning edge 127 that turns inward, and the outer side wall of the test tube 100 or the test tube cover 101 has an annular limiting groove 68 for the turning edge 127 to be clamped.

[0146] In order to facilitate replacement and maintenance and improve adaptability, in this embodiment, the clamping claw portion 125 is detachably mounted on the sliding portion 124 .

[0147] like Fig.15and 16 As shown, the cuvette 2 of this embodiment is covered with a cuvette cover 1, which can protect the cuvette 2 and prevent the outer wall of the cuvette 2 from being worn, and the setting of the detection opening 3 will not affect the colorimetric work of the cuvette 2;

[0148] like Fig.15 and 16 As shown, in this embodiment, the outer contour of the cross-section of the cuvette 2 is rectangular, the cuvette sleeve 1 includes a head 19 and a U-shaped portion 20 located below the head 19, the head 19 has a rectangular hole 21 adapted to the cuvette 2, and the U-shaped portion 20 is used to abut against the bottom wall and two opposite side walls of the cuvette 2.

[0149] like Figures 9 to 12 As shown, the cleaning device of this embodiment includes a cleaning tank 22, a cuvette cleaning mechanism and a test tube cleaning mechanism; the cuvette cleaning mechanism includes:

[0150] A cuvette cover 1 is placed on the cuvette 2;

[0151] A first rotating element 4;

[0152] A first cleaning fixture 5 is mounted on the rotating shaft of the first rotating element 4 and is driven to rotate by the first rotating element 4. The first cleaning fixture 5 is used to fix the cuvette sleeve 1. The first cleaning fixture 5 is located above the bottom wall of the cleaning tank 22.

[0153] The cleaning member 6 is located below the first cleaning fixing member 5. The cleaning member 6 has an air outlet channel 7. The outlet 8 of the air outlet channel 7 faces the first cleaning fixing member 5, and the outlet 8 of the air outlet channel 7 is located above the bottom wall of the cleaning tank 22.

[0154] A fan 9, an air outlet 10 of the fan 9 is connected to the air outlet channel 7; and

[0155] A spray pipe 11 is installed in the cleaning member 6, the upper end of the spray pipe 11 is located at the outlet 8 of the air outlet channel 7, and the spray pipe 11 is used to spray the cleaning liquid toward one side of the first cleaning fixture 5;

[0156] The test tube cleaning mechanism includes:

[0157] A second rotating element 27;

[0158] The second cleaning fixture 28 is mounted on the rotating shaft of the second rotating element 27 and is driven to rotate by the second rotating element 27. The second cleaning fixture 28 is used to fix the test tube 100. The second cleaning fixture 28 is located above the bottom wall of the cleaning tank 22.

[0159] A cleaning pipe 29, located below the second cleaning fixture 28, for spraying cleaning liquid into the test tube 100; and

[0160] The cleaning tube lifting assembly 30 is used to drive the cleaning tube 29 to move up and down and extend into the interior of the test tube 100 .

[0161] The cuvette cleaning mechanism and the test tube cleaning mechanism of the present application share a cleaning tank 22, and have a compact structure. The cuvette cleaning mechanism can be used to clean the cuvette 2, and the test tube cleaning mechanism can be used to clean the test tube 100.

[0162] The cleaning liquid can be sprayed onto the cuvette 2 through the spray pipe 11 for cleaning, and the cleaned cuvette 2 can be blown dry through the fan 9 and the air outlet channel 7; the upper end of the spray pipe 11 is located at the outlet 8 of the air outlet channel 7, so the structure is compact.

[0163] In actual use, a working mode of the cuvette cleaning mechanism is as follows: the cuvette cover 1 containing the cuvette 2 is manually or automatically placed in the first cleaning fixture 5 for fixing, the first rotating element 4 is activated to rotate the first cleaning fixture 5 180° so that the opening of the cuvette 2 faces downward, the injection pipe 11 is activated, and the external pump inputs the cleaning liquid into the injection pipe 11 to spray and clean the cuvette 2. After the cleaning is completed, the fan 9 is activated to make the wind flow out from the air outlet channel 7 and spray to the cuvette 2 to dry the cuvette 2.

[0164] The test tube cleaning mechanism of the present application can drive the cleaning tube 29 into the interior of the test tube 100 through the cleaning tube lifting assembly 30, so that the cleaning liquid can be better sprayed into the test tube 100, and the cleaning effect is better.

[0165] In actual use, the test tube cleaning mechanism works in one way: the test tube 100 is placed in the second cleaning fixture 28 manually or by an automatic mechanism, the second rotating element 27 works to rotate the second cleaning fixture 28 180°, the opening of the test tube 100 faces downward, the cleaning tube lifting assembly 30 drives the cleaning tube 29 to move upward, and at the same time, the cleaning liquid is input into the cleaning tube 29 by an external pump to spray and clean the test tube 100.

[0166] In the present application, the cleaning liquid may be water. In actual use, the first rotating element 4 and the second rotating element 27 may be motors. In actual use, the cleaning pipe lifting assembly 30 may adopt various existing lifting structures, such as a screw rod structure, a conveyor belt structure, an electric push rod, a cylinder, etc.

[0167] like Fig. 9 and 10 As shown, in this embodiment, the bottom wall of the cleaning tank 22 includes a first recessed area 23, a second recessed area 24 and a third recessed area 25 which are arranged in sequence and are not connected to each other. A drainage hole 26 is provided at the bottom of each recessed area. The first cleaning fixture 5 and the second cleaning fixture 28 are both located above the second recessed area 24 and are respectively located on both sides of the second recessed area 24.

[0168] Due to the particularity of the application scenario of this application, the waste liquid generated after use does not meet the direct discharge standards and needs to be stored independently and handed over to the relevant departments for processing. The first recessed area and the third recessed area can realize the function of storing acidic waste liquid and alkaline waste liquid respectively, and the second recessed area can realize the function of storing neutral waste liquid separately. Specifically, the waste liquid discharged from the drainage holes of each recessed area flows into different waste liquid storage tanks respectively. In actual operation, the liquid in the test tube and the cuvette can be selectively poured into the first recessed area or the third recessed area by the different rotation directions of the cleaning fixture. During cleaning (the cleaning fixture is set vertically at this time), the neutral waste liquid formed by cleaning will flow into the second recessed area.

[0169] like Fig.12 As shown, in this embodiment, the air outlet channel 7 is vertically arranged, and the cleaning member 6 further has a first connecting channel 12 communicating with the air outlet channel 7, and the air outlet 10 of the fan 9 is aligned with the first connecting channel 12;

[0170] The cleaning component 6 has a second connecting channel 13 , the lower end of the spray pipe 11 is connected to the second connecting channel 13 , and one end of the second connecting channel 13 away from the spray pipe 11 is connected to a water inlet pipe joint 14 .

[0171] This arrangement facilitates the fixed arrangement of the fan 9 .

[0172] like Figure 4 As shown, in this embodiment, the lower end of the cleaning member 6 has a drain port 15 , and a control valve 16 , a liquid discharge port and an air outlet channel 7 are installed on the drain port 15 .

[0173] When the injection pipe 11 is working, some liquid will fall into the air outlet channel 7. The drain port 15 is provided to discharge the liquid (the control valve 16 is normally open); when the fan 9 is working, the control valve 16 is closed, so that the wind can only be ejected from the outlet 8 of the air outlet channel 7.

[0174] like Fig.13 and 14 As shown, in this embodiment, the first cleaning fixture 5 has a first limiting groove 17, and the cuvette sleeve 1 is inserted into the first limiting groove 17; a first clamping block 18 is installed on the side wall of the first limiting groove 17, and the first clamping block 18 contacts the outer side wall of the cuvette sleeve 1, so that the cuvette sleeve 1 is fixed in the first limiting groove 17.

[0175] like Fig.12 As shown, the second cleaning fixture 28 has a second limiting groove 34, and the test tube 100 is inserted into the second limiting groove 34; a second pressing block 35 is installed on the side wall of the second limiting groove 34, and the second pressing block 35 contacts the outer side wall of the test tube 100 to fix the test tube 100 in the second limiting groove 34.

[0176] In this embodiment, the fan 9 is a vortex fan 9. In actual use, a heating element may be installed at the outlet 8 of the fan 9 or at the outlet of the first connecting channel 12. The heating element is provided to heat the air and achieve more efficient drying of the cuvette 2.

[0177] like Fig.12 As shown, the cleaning pipe 29 is slidably sealed with the cleaning tank 22. In this embodiment, a sealing joint 36 is installed on the bottom wall of the cleaning tank 22, and a sealing ring 37 is installed in the sealing joint 36. The cleaning pipe 29 is slidably sealed with the sealing ring 37 of the sealing joint 36.

[0178] In actual use, a three-way control valve 16 can be installed at the lower end of the cleaning pipe 29, the first end of the three-way control valve 16 is connected to the cleaning pipe 29, the second end is connected to a water pipe, and the third end is connected to an air pipe. Through the design of the three-way control valve 16, in addition to spraying cleaning liquid for cleaning, the cleaning pipe 29 can also spray air into the test tube 100 after cleaning is completed to perform an air drying operation.

[0179] In actual use, in order to clean the test tube more efficiently, the cleaning tube 29 can be as follows Fig.17 The upper end surface of the cleaning pipe 29 has a sealing plate 31, and the sealing plate 31 of the cleaning pipe 29 has at least one first injection hole 32. The side wall of the cleaning pipe 29 near the upper end has multiple groups of second injection holes 33, and each group of second injection holes 33 is distributed at intervals around the axis of the cleaning pipe 29.

[0180] The cleaning pipe 29 is arranged in this way so that the cleaning liquid can be sprayed to the bottom and side wall of the test tube 100 at the same time. Combined with the up and down movement of the cleaning pipe 29, efficient cleaning can be achieved and the cleaning is ensured to be clean. In actual use, a nozzle can be installed in the water spray hole. Each group of second water spray holes includes a plurality of second spray holes 33 arranged at intervals up and down.

[0181] In actual use, because the test tube 100 is long and the wet area is large, the efficiency of natural drying or air drying is low. In the operation of this embodiment, the second mechanical arm 48 can put the cleaned test tube 100 into the digestion instrument 51 for rapid drying.

[0182] like Fig. 9 and 10 As shown, in this embodiment, the cleaning device 38 also includes a test tube cover cleaning groove 40, and the test tube cover cleaning groove 40 has a plurality of clamping pieces 41 distributed around an axis, and the clamping pieces 41 are used for the test tube cover 101 to be inserted, and the bottom of the test tube cover cleaning groove 40 has at least one cleaning liquid hole 42, and the bottom or side wall of the test tube cover cleaning groove 40 has at least one air outlet 43, and the air outlet 43 is used to blow air to the test tube cover 101 to dry the test tube cover 101.

[0183] One working mode of the test tube cover cleaning groove 40 is: a manual or automatic mechanism drives the lower part of the test tube cover 101 to be clamped into the space surrounded by the clamping piece 41; then clean water is injected through the cleaning liquid hole 42 to clean the test tube cover 101. After the cleaning is completed, the liquid is discharged through the cleaning liquid hole 42, and finally, air is blown to the test tube cover 101 through the air outlet 43 to air dry. Fig. 9 As shown, in this embodiment, the air outlet 43 is located on the bottom wall of the test tube cover cleaning groove 40 and is located in the middle of the space formed by each clamping piece 41 .

[0184] like Figure 1 , 2 As shown in FIGS. 18 and 19 , in this embodiment, the dosing, shaking and lid opening device 50 includes a mounting platform 109 mounted on the equipment frame 44 , and the dosing component 128 , the shaking mechanism 92 and the lid opening mechanism 71 are mounted on the mounting platform 109 , and the mounting platform 109 has a tabletop 138 .

[0185] like Fig.18 and 19 As shown, the dosing assembly 128 includes:

[0186] The medicine adding plate 129 is located above the table 138. The medicine adding plate 129 has a rotating end 130 and a medicine adding end 131. The medicine adding plate 129 has a plurality of medicine adding holes 132 arranged at intervals at the medicine adding end 131. The medicine adding holes 132 are used to fix the liquid outlet end of the medicine tube;

[0187] A hollow rotating shaft 133 is fixed to the rotating end 130 of the medicine adding plate 129, and the hollow rotating shaft 133 is used for each medicine tube to pass through; and

[0188] A dosing motor 134, used to drive the hollow rotating shaft 133 to rotate, and located below the platform 138; and

[0189] The waste liquid tray 136 is disposed on the table 138 and is located below the dosing end 131 of the dosing tray 129 . The dosing tray 129 has an initial working position. In the initial working position, each dosing hole 132 is located directly above the waste liquid tray 136 .

[0190] The dosing component 128 switches the position of the dosing hole 132 by rotating, which is beneficial to the structural layout compared to the linear movement. In addition, the setting of the hollow rotating shaft 133 can allow each medicine tube to pass through. After the medicine tubes pass through the hollow rotating shaft 133, the liquid outlet ends of the medicine tubes are fixed on the dosing holes 132. This structural form is convenient for wiring, and the wiring is neat and beautiful. After the dosing work is completed, the dosing tray 129 switches to the initial working position. At this time, if the liquid outlet end of the medicine tube drips medicine, it can be caught by the waste liquid tray 136.

[0191] In actual use, the dosing motor 134 drives the hollow rotating shaft 133 to rotate through the transmission structure. In actual use, the transmission structure is a variety of conventional structures such as a transmission belt or a gear set.

[0192] In this embodiment, the side wall of the dosing end 131 has a fastening hole 135 connected to the dosing hole 132. By tightening the screw in the fastening hole 135, the liquid outlet end of the medicine tube can be conveniently and reliably fixed on the dosing hole 132. In this embodiment, the dosing plate 129 is umbrella-shaped.

[0193] like Fig.18 As shown, in this embodiment, the table 138 also has a strip-shaped avoidance opening 139, one end of which is adjacent to one end of the waste liquid tray 136; the shaking mechanism 92 is used to clamp the test tube 100 passing through the strip-shaped avoidance opening 139 and drive the test tube 100 to shake back and forth in the strip-shaped avoidance opening 139.

[0194] This arrangement can achieve a more convenient dosing operation, and a specific dosing operation method is as follows: the shaking assembly clamps the test tube 100 passing through the strip avoidance opening 139, and moves the dosing plate 129 to make the corresponding dosing hole 132 correspond to the upper end opening of the test tube 100 to perform the dosing operation. This structure in the present application allows the rotating plate to rotate at a smaller angle during dosing, and can prevent the medicine from dripping on the outside of the waste liquid plate 136 to the greatest extent.

[0195] like Figures 20-23 As shown, the shaking mechanism 92 includes:

[0196] Mounting seat 102;

[0197] The swing frame 93 is rotatably mounted on the mounting seat 102;

[0198] A swing motor 94 is used to drive the swing frame 93 to swing;

[0199] A limiting base 95 is fixed on the swing frame 93 and is used to limit the bottom of the test tube 100;

[0200] Two sets of clamping assemblies 96 are movably mounted on the swing frame 93;

[0201] An elastic element, cooperating with the two groups of clamping assemblies 96, is used to bring the two groups of clamping assemblies 96 closer to each other and clamp the outer side wall of the test tube 100; and

[0202] The unlocking assembly 97 is used to move the two sets of clamping assemblies 96 away from each other so as to no longer clamp the test tube 100 .

[0203] The structure of the shaking mechanism 92 of the present application is highly reliable. One working mode of the shaking mechanism 92 is: the unlocking component 97 cooperates with the two groups of clamping components 96 to make the two groups of clamping components 96 move away from each other, the test tube 100 is placed into the limiting base 95 by a manual or automatic mechanism, the unlocking component 97 is reset, and under the action of the elastic element, the two groups of clamping components 96 are close to each other to clamp the outer wall of the test tube 100, and the swing motor 94 works to drive the swing frame 93, the limiting base 95, the clamping component 96 and the test tube 100 to swing, so that the liquid in the test tube 100 is shaken evenly.

[0204] In this embodiment, a guide sleeve 98 is also included, which is fixed on the swing frame 93 and is located directly above the limiting base 95. The test tube is prone to deflection when placed, and the guide sleeve can both guide and limit the test tube, and can better limit the position of the test tube by cooperating with the limiting base.

[0205] In this embodiment, the clamping assembly 96 includes an arc-shaped silicone pad 99 in contact with the outer wall of the test tube 100 .

[0206] In this embodiment, a plurality of guide rods 103 are further included, which are mounted on the swing frame 93. The clamping assembly 96 is slidably mounted on the guide rods 103. The ends of the guide rods 103 have anti-detachment portions 104. The anti-detachment portions 104 are used to prevent the clamping assembly 96 from completely detaching from the guide rods 103.

[0207] In this embodiment, the unlocking assembly 97 includes an unlocking rod 105 and an unlocking element 106 driving the unlocking rod 105 to move. The unlocking rod 105 is used to extend between the two clamping assemblies 96 to move the two clamping assemblies 96 away from each other. The unlocking assembly 97 has a simple structure and a reliable and stable unlocking action.

[0208] In this embodiment, the unlocking element 106 has a tapered portion 107, and a guide surface 108 is provided between the two clamping components 96 to cooperate with the tapered portion 107. Through the cooperation between the tapered portion 107 and the guide surface 108, force conversion can be achieved, so that when the unlocking rod 105 moves, the two clamping components 96 can be driven to move away from each other in a direction perpendicular to the movement of the unlocking rod 105.

[0209] In this embodiment, the unlocking element 106 is an electric push rod, and the elastic element is a tension spring.

[0210] like Fig.18 , 19 , 24 to 27, the cover opening mechanism 71 includes:

[0211] Mounting frame 72;

[0212] A lifting seat 73 is slidably mounted on the mounting frame 72;

[0213] The lifting element 74 is used to drive the lifting seat 73 to move up and down;

[0214] The cover opening assembly 75 is mounted on the lifting seat 73 and is located above the two sets of clamping assemblies 96, and is used to drive the test tube cover 101 to rotate;

[0215] The anti-dropping member 76 has a snap-in 77 for snapping into the limiting groove 68 of the test tube cover 101; and

[0216] The anti-dropping member telescopic element 78 is mounted on the lifting seat 73 and is used to drive the anti-dropping member 76 to move horizontally, close to or away from the test tube cover 101;

[0217] The cover opening assembly 75 comprises:

[0218] A rotating cover 79, capable of rotating about an axis;

[0219] A bayonet 82 mounted on the rotating cover 79, the bayonet 82 being used to be inserted into the positioning groove 67 of the test tube cover 101; and

[0220] The rotary motor 80 is used to drive the rotary cover 79 to rotate.

[0221] The opening mechanism 71 operates in a manner that the opening mechanism 71 opens the cover: the test tube 100 with the test tube cover 101 is restrained, the lifting element 74 operates, driving the lifting seat 73 to move downward, so that the opening assembly 75 cooperates with the test tube cover 101, the anti-slipping telescopic element 78 operates, driving the anti-slipping member 76 to approach the test tube cover 101, so that the bayonet 77 is engaged in the side wall of the test tube cover 101, the rotating motor 80 slowly operates at a certain angle, so that the bayonet 82 falls into the positioning groove 67, and then the rotating motor 80 operates normally, driving the rotating cover 79, the bayonet 82 and the test tube cover 101 to rotate, and at the same time, the lifting element 74 rises synchronously to drive the lifting seat 73, the opening assembly 75 and the test tube cover 101 to rise as a whole, and the test tube cover 101 is separated from the test tube 100. Because of the existence of the anti-slipping member 76, the test tube cover 101 that is completely separated from the test tube 100 will not fall down.

[0222] In this embodiment, the cover opening mechanism 71 further includes a frame and a switching motor 81 . The mounting frame 72 is rotatably mounted on the frame. The switching motor 81 cooperates with the mounting frame 72 via a transmission structure to drive the mounting frame 72 to rotate.

[0223] In actual application, the transmission structure can adopt various existing structures, such as transmission belts, gear sets, etc.

[0224] By switching the motor 81, the mounting frame 72 can be driven to rotate, so that more diverse operations can be performed, such as operating the test tube covers 101 at multiple stations, such as placing the unscrewed test tube covers 101 into the corresponding station.

[0225] like Fig.25In this embodiment, the bayonet 82 is an elastic bayonet 82, and the bayonet 82 includes an elastic member 83 and a pin 84. The design of the elastic bayonet 82 makes it unnecessary to accurately position the rotating cover 79 and the test tube cover 101 during operation. Even if the bayonet 82 does not correspond to the positioning groove 67 of the test tube cover 101 at the beginning, the pin 84 can be compressed and contracted due to the presence of the elastic member 83. When the rotating motor 80 drives the rotating cover 79 to rotate a certain angle, the bayonet 82 corresponds to the positioning groove 67, and the elastic member 83 can automatically push the bayonet 82 into the positioning groove 67.

[0226] like Figures 26 to 29 As shown, in this embodiment, the lower end surface of the rotating cover 79 has a groove 85, and the rotating cover 79 also has a pin groove 86 for installing the bayonet 82. The pin groove 86 is located at the periphery of the groove 85, and the lower end of the pin groove 86 extends to the side wall of the groove 85 and the lower end of the pin groove 86 does not penetrate the rotating cover 79;

[0227] The latch pin 82 is installed in the pin slot 86, and the elastic member 83 is used to make the pin 84 have a downward movement tendency;

[0228] The rotating cover 79 is used to be put on the test tube cover 101 , and the portion of the pin 84 exposed from the groove 85 is used to be embedded in the positioning groove 67 of the test tube cover 101 .

[0229] The design of the groove 85 facilitates the reliable cooperation of the rotating cover 79 with the test tube cover 101, and the arrangement of the groove 85 and the pin slot 86 facilitates the reliable force of the latch pin 82.

[0230] In this embodiment, the groove 85 is a circular groove 85 , and there are a plurality of pin grooves 86 that are evenly distributed around the axis of the groove 85 .

[0231] like Fig.25 and 26 As shown, in this embodiment, the lifting element 74 has a telescopic rod 87, and the telescopic rod 87 has a lower limit ring 88 and an upper limit ring 89. The lifting seat 73 is sleeved on the telescopic rod 87, and the lifting seat 73 can slide between the lower limit ring 88 and the upper limit ring 89 relative to the telescopic rod 87. This arrangement can compensate for the mismatch in the rotation speed of the motor of the lifting element 74 and the motor of the cover opening component 75.

[0232] like Fig.25 and 26 As shown, in this embodiment, the lifting seat 73 is L-shaped, and the lifting seat 73 has a horizontal portion 90 and a vertical portion 91. The cover opening assembly 75 is installed on the vertical portion 91, and the anti-slip telescopic element 78 is installed on the horizontal portion 90; the horizontal portion 90 is sleeved on the telescopic rod 87 and is located between the lower limit ring 88 and the upper limit ring 89. The maximum distance that the horizontal portion 90 moves relative to the telescopic rod 87 is 4 to 10 mm.

[0233] In this embodiment, the lifting element 74 and the anti-dropping telescopic element 78 are electric push rods.

[0234] like Figure 2 In this embodiment, the mounting plate 45 has a through hole 65 , and the detection mechanism 141 is located in the equipment rack 44 and below the mounting plate 45 .

[0235] like Fig.30 and 31 As shown, the detection mechanism 141 includes:

[0236] The housing 142 has an inlet and outlet 143 at its upper end, and the inlet and outlet 143 corresponds to the through port 65;

[0237] The ultraviolet spectrophotometer 144 is located in the housing 142. The ultraviolet spectrophotometer 144 has a detection cavity 145. The ultraviolet spectrophotometer 144 also has a sliding cover 146 that can slide. The sliding cover 146 is used to close or open the detection cavity 145.

[0238] The opening and closing structure 147 is used to drive the sliding cover 146 to open or close;

[0239] A detection bracket 148 is slidably mounted in the detection cavity 145. The detection bracket 148 is used to limit the cuvette 2. The detection bracket 148 has a material receiving position that passes through the detection cavity 145 after moving upward and a detection position that is located in the detection cavity 145 after moving downward; and

[0240] The detection bracket lifting assembly 149 is used to drive the detection bracket 148 to move up and down.

[0241] The lifting detection bracket 148 structure enables the detection mechanism 141 to be installed below the mounting plate 45, thereby improving the tabletop utilization rate.

[0242] A working mode of the detection mechanism 141 of the present application: the opening and closing structure 147 drives the sliding cover 146 to move, opens the detection cavity 145, and the detection bracket lifting assembly 149 drives the detection bracket 148 to move up to the material receiving working position. At this time, the second mechanical arm 48 can more conveniently place the colorimetric cell cover 1 into the detection bracket 148, and the detection bracket lifting assembly 149 drives the detection bracket 148 to move down to the detection working position. The opening and closing structure 147 drives the sliding cover 146 to move, closes the detection cavity 145, and finally the ultraviolet spectrophotometer 144 performs the detection work.

[0243] In actual use, the opening and closing structure 147 can be an electric push rod. Fig.32 As shown, in this embodiment, the opening and closing structure 147 includes:

[0244] A threaded rod 152 is rotatably mounted in the housing 142;

[0245] The slide bar 153 is installed in the housing 142 and is arranged parallel to the threaded rod 152;

[0246] The slider 154 is slidably mounted on the slider 153 and fixed to the slider cover 146;

[0247] A movable seat 155, the outer sleeve of which is engaged with the threaded rod 152 and fixed to the sliding cover 146; and

[0248] The opening and closing motor 156 is used to drive the threaded rod 152 to rotate, thereby driving the sliding cover 146 to move.

[0249] like Figure 1 As shown, in this embodiment, the detection bracket 148 has a slot 150 , and the slot 150 has a block 151 , and the block 151 is in contact with the outer wall of the cuvette sleeve 1 .

[0250] In actual use, the detection bracket lifting component 149 can be an electric push rod. In this embodiment, the detection bracket lifting component 149 includes:

[0251] The limiting rod 157 is slidably mounted in the detection chamber 145, and the detection bracket 148 is fixed to the upper end of the limiting rod 157;

[0252] The screw rod 158 is rotatably mounted on the housing 142, and the upper end of the screw rod 158 is rotatably matched with the detection bracket 148;

[0253] A ball nut 159 is sleeved on the screw rod 158 and is threadedly connected to the screw rod 158; and

[0254] The lifting motor 160 is used to drive the ball nut 159 to rotate, thereby driving the screw rod 158 to move up and down.

[0255] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A water quality testing device, characterized in that: include: an equipment rack, the equipment rack having a mounting plate; A first robotic arm, mounted on an equipment rack; A syringe pump, mounted on the first robotic arm; A second robotic arm, mounted on the equipment rack; An electric gripper, mounted on the second robotic arm; A stirrer, mounted on the mounting plate, for stirring the water sample; The drug adding, shaking and uncapping device comprises a drug adding component, a shaking mechanism and an uncapping mechanism, wherein the drug adding component is used to add drugs to the test tube, the shaking mechanism is used to shake the liquid in the test tube, and the uncapping mechanism is used to screw the test tube cover into the test tube and unscrew the test tube cover out of the test tube; A digestion instrument, mounted on the mounting plate, for heating the shaken test tube; Cuvette, used to place the digested sample; A detection mechanism, mounted on the equipment frame, for detecting the sample in the colorimetric dish; and A cleaning device, used for cleaning the test tube, the test tube cover and the cuvette; The first mechanical arm and the second mechanical arm each include a vertical lifting module, a first rotating arm and a second rotating arm, the vertical lifting module has a rotating shaft seat that can be lifted up and down, one end of the first rotating arm is rotatably mounted on the rotating shaft seat, a first driving motor for driving the first rotating arm to rotate is installed between the first rotating arm and the rotating shaft seat, the other end of the first rotating arm is rotatably matched with one end of the second rotating arm, and a second driving motor for driving the second rotating arm to rotate is installed between the first rotating arm and the second rotating arm; the injection pump is installed on the second rotating arm of the first mechanical arm, and the electric gripper is installed on the second rotating arm of the second mechanical arm; The dosing, shaking and opening device comprises a mounting platform mounted on an equipment frame, the dosing component, the shaking mechanism and the opening mechanism are mounted on the mounting platform, the mounting platform has a table, and the dosing component comprises: The medicine adding plate is located above the table. The medicine adding plate is umbrella-shaped and has a rotating end and a medicine adding end. The medicine adding plate has a plurality of medicine adding holes arranged at intervals at the medicine adding end. The medicine adding holes are used to fix the liquid outlet end of the medicine tube. A hollow rotating shaft, fixed to the rotating end of the medicine adding disk, the hollow rotating shaft is used for each medicine tube to pass through; and A dosing motor, used for driving the hollow rotating shaft to rotate, and located below the platform; and A waste liquid tray is arranged on the table and is located below the dosing end of the dosing tray. The dosing tray has an initial working position. When in the initial working position, each dosing hole is located directly above the waste liquid tray. The side wall of the dosing end has a fastening hole connected to the dosing hole; The table is also provided with a strip avoidance opening, one end of which is adjacent to one end of the waste liquid tray; the shaking mechanism is used for clamping the test tube passing through the strip avoidance opening and driving the test tube to shake back and forth in the strip avoidance opening.

2. The water quality testing device according to claim 1, characterized in that: The first robotic arm and the second robotic arm are also equipped with cameras, which are used to detect the operation status of the water quality detection equipment.

3. The water quality testing device according to claim 1, characterized in that: It also includes a test tube support, a test tube cover support and a cuvette support installed on the mounting plate; a needle cleaning assembly is arranged on the mounting plate, the needle cleaning assembly has a plurality of water tanks, and a water inlet is provided at the bottom of the water tank.

4. The water quality testing device according to claim 1, characterized in that: The electric gripper comprises: A motor frame is mounted on the second rotating arm of the second mechanical arm; A clamping frame, rotatably mounted on the motor frame; A clamping jaw motor, used for driving the clamping frame to rotate; A guide rod mounted on the clamping frame; Two clamping jaws, the sliding sleeves are on the guide rod, and can move along the length direction of the guide rod. The clamping jaws are provided with limiting notches, and the bottom wall of the limiting notches is inclined; A top block is embedded in the limiting recesses of the two clamping jaws, and the top block has two driving surfaces respectively contacting and cooperating with the bottom walls of the corresponding limiting recesses, and the top block also has a threaded hole running through it; A screw motor is installed on the clamping frame. The output shaft of the screw motor is threadedly matched with the threaded hole of the top block. When the screw motor is working, it can drive the top block to move up and down. When the top block moves down, it drives the two clamping claws to move away from each other; and The tension spring has two ends respectively mounted on the two clamping jaws, and is used to make the two clamping jaws have a tendency to move closer to each other.

5. The water quality testing device according to claim 1, characterized in that: The shaking mechanism comprises: Mounting seat; A swing frame, rotatably mounted on the mounting seat; A swing motor, used for driving the swing frame to swing; A limiting base, fixed on the swing frame, is used to limit the bottom of the test tube; Two sets of clamping components are movably mounted on the swing frame; an elastic element, cooperating with the two groups of clamping assemblies, and used to bring the two groups of clamping assemblies closer to each other and clamp the outer side wall of the test tube; and The unlocking component is used to move the two sets of clamping components away from each other so that the test tube is no longer clamped.

6. The water quality testing device according to claim 5, characterized in that: The test tube cover comprises a test tube cover body, the upper end of the test tube cover body is evenly distributed with a plurality of positioning grooves around its own axis direction, and the outer side wall of the test tube cover body also has an annular limiting groove; The cover opening mechanism comprises: Mounting frame; A lifting seat, slidably mounted on the mounting frame; A lifting element, used for driving the lifting seat to move up and down; A cover opening assembly, mounted on the lifting seat and located above the two sets of clamping assemblies, and used to drive the test tube cover to rotate; An anti-dropping member having a snap-in opening for snapping into a limiting groove of a test tube cover; and The anti-dropping piece telescopic element is installed on the lifting seat and is used to drive the anti-dropping piece to move horizontally, close to or away from the test tube cover; The cover opening assembly comprises: A rotating cover capable of rotating about an axis; A bayonet, mounted on the rotating cover, the bayonet being used to be inserted into a positioning groove of the test tube cover; and The rotary motor is used to drive the rotary cover to rotate.

7. The water quality testing device according to claim 1, characterized in that: The mounting plate has a through hole, the detection mechanism is located in the equipment rack and below the mounting plate, and the detection mechanism includes: The housing has an inlet and an outlet at the upper end, and the inlet and the outlet correspond to the through port; An ultraviolet spectrophotometer is located in the housing, and has a detection cavity. The ultraviolet spectrophotometer also has a sliding cover that can slide, and the sliding cover is used to close or open the detection cavity; An opening and closing structure, used to drive the sliding cover to open or close; A detection bracket is slidably mounted in the detection cavity, the detection bracket is used to define the cuvette, and the detection bracket has a material receiving work position that passes out of the detection cavity after moving upward and a detection work position that is located in the detection cavity after moving downward; and The detection bracket lifting assembly is used to drive the detection bracket to move up and down.

8. The water quality testing device according to claim 1, characterized in that: The cleaning device comprises a cleaning tank, a cuvette cleaning mechanism and a test tube cleaning mechanism; the cuvette cleaning mechanism comprises: A cuvette cover is placed on the cuvette, and the cuvette cover has a detection opening for exposing the side wall of the cuvette; a first rotating element; a first cleaning fixture, mounted on the rotating shaft of the first rotating element and driven to rotate by the first rotating element, the first cleaning fixture being used to fix the cuvette sleeve, and the first cleaning fixture being located above the bottom wall of the cleaning tank; A cleaning member, located below the first cleaning fixing member, having an air outlet passage, an outlet of the air outlet passage facing the first cleaning fixing member, and the outlet of the air outlet passage being located above the bottom wall of the cleaning tank; a fan, wherein an air outlet of the fan is connected to the air outlet channel; and A spray pipe is installed in the cleaning member, the upper end of the spray pipe is located at the outlet of the air outlet channel, and the spray pipe is used to spray cleaning liquid toward one side of the first cleaning fixture; The test tube cleaning mechanism comprises: a second rotating element; a second cleaning fixture, mounted on the rotating shaft of the second rotating element and driven to rotate by the second rotating element, the second cleaning fixture being used to fix the test tube, and the second cleaning fixture being located above the bottom wall of the cleaning tank; a cleaning tube, located below the second cleaning fixture, and used for spraying cleaning liquid into the test tube; and A cleaning tube lifting assembly, used to drive the cleaning tube to move up and down and extend into the test tube; The cleaning device also includes a test tube cover cleaning groove, wherein the test tube cover cleaning groove has a plurality of clamping plates distributed around an axis, wherein the clamping plates are used for inserting the test tube cover, wherein the bottom of the test tube cover cleaning groove has at least one cleaning liquid hole, and the bottom or side wall of the test tube cover cleaning groove has at least one air outlet hole, wherein the air outlet hole is used for blowing air toward the test tube cover to dry the test tube cover.

9. The water quality testing device according to claim 8, characterized in that: The outer contour of the cross section of the cuvette is rectangular. The cuvette sleeve includes a head and a U-shaped portion below the head. The head has a rectangular hole adapted to the cuvette. The U-shaped portion is used to abut against the bottom wall and two opposite side walls of the cuvette.

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