CN111804690A - Test tube cleaning mechanism for water quality testing equipment and water quality testing equipment - Google Patents

Abstract

The present application discloses a test tube cleaning mechanism for water quality testing equipment and water quality testing equipment, wherein the test tube cleaning mechanism includes: a storage rack, which is rotatably mounted on the rack, and the upper end surface of the storage rack has a plurality of fixing grooves; the test tube self-clamping sleeve, It is fixedly installed in the fixing groove; the rotary driving part is used to drive the storage rack to rotate; the cleaning rack is located under the storage rack, and a plurality of water spray heads are installed on the cleaning rack; the first reciprocating element is used to drive the cleaning rack to move back and forth , so that the water is sprayed to the test tube fixed on the self-clamping sleeve of the test tube; the air drying rack is located under the storage rack, and a plurality of hair dryers are installed on the air drying rack; the second reciprocating element is used to drive the air drying rack to move back and forth, so that the air Spray to the test tube fixed on the self-clamping sleeve of the test tube; the waste liquid box, located under the storage rack, is used to receive the waste water. The test tube cleaning mechanism of the present application can automatically clean the test tube.

Description

Test tube cleaning mechanism for water quality testing equipment and water quality testing equipment

technical field

The invention relates to the field of water quality detection, in particular to a test tube cleaning mechanism of water quality detection equipment and water quality detection equipment.

Background technique

In municipal sewage plants and other places, laboratory technicians are required to test the incoming and outgoing water samples of sewage, such as COD, BOD, total nitrogen, total phosphorus and other indicators. There are many uncertainties, and the accuracy of the detection results is not good.

In order to solve the above problems, automated equipment can be used to assist the detection. The automated equipment usually includes a test tube rack, and the test tubes on the test tube rack need to be manually removed for cleaning after use, which is cumbersome.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention proposes a test tube cleaning mechanism and a water quality detection device for water quality detection equipment.

The technical scheme adopted by the present invention is as follows:

A test tube cleaning mechanism for water quality testing equipment, the water quality testing equipment includes a rack, and the test tube cleaning mechanism includes:

The storage rack is rotatably mounted on the rack, the upper end surface of the storage rack has a plurality of fixing grooves, the storage rack has an initial working position and a cleaning working position, and the cleaning working position is rotated 180° relative to the initial working position;

The test tube self-clamping sleeve is fixedly installed in the fixed groove;

a rotary drive member for driving the storage rack to rotate;

The cleaning rack is located below the storage rack, and a plurality of water spray heads are installed on the cleaning rack;

The first reciprocating element is used to drive the cleaning rack to reciprocate, so that water is sprayed to the test tube fixed on the self-clamping sleeve of the test tube;

an air drying rack, located under the storage rack, and a plurality of hair dryers are installed on the air drying rack;

The second reciprocating element is used to drive the air drying rack to reciprocate, so that the air is sprayed to the test tube fixed on the self-clamping sleeve of the test tube;

Waste box, located under the storage rack, to receive waste water.

The test tube cleaning mechanism of the present application can automatically clean the test tube. When in use, the test tube is fixed on the test tube self-clamping sleeve, and the storage rack is rotated by 180° through the rotating driving member, and the test tube is switched from the initial working position to the cleaning working position. At this time, the test tube Then the first reciprocating element and the water spray head work, the water is sprayed in the test tube, the test tube is cleaned, and the waste water falls into the waste liquid box. After drying, the storage rack is rotated and reset.

In one embodiment of the present invention, the rack has an escape opening, and the storage rack is disposed at the escape opening.

In one embodiment of the present invention, the rotary driving member is a rotary cylinder or a motor.

In one embodiment of the present invention, the test tube cleaning mechanism further includes an annular or rectangular enclosure fixed to the rack, the lower end of the storage rack is located in the enclosure, and the cleaning rack and the drying rack are located below the enclosure. .

Set up a fence to prevent water from splashing around.

In one embodiment of the present invention, the first reciprocating element is an air cylinder or an electric push rod; the second reciprocating element is an air cylinder or an electric push rod.

In one embodiment of the present invention, the test tube self-clamping sleeve includes a body into which the test tube body is inserted, a clamping elastic sheet is installed in the main body, and the clamping elastic sheet includes an arc protruding toward the axis of the body. shape;

The body includes an inner sleeve body and an outer sleeve, the inner sleeve body has a through hole, the clamping elastic piece further includes a limit portion, the limit portion is arranged at at least one end of the arc portion, and the outer sleeve The outer sleeve is on and fixed with the inner sleeve body, the limiting portion of the clamping elastic sheet is located between the inner sleeve body and the outer sleeve body, and the arc portion of the clamping elastic sheet passes through the through hole.

When the test tube body is inserted into the body, the arc-shaped portion can be compressed, and the arc-shaped portion after being squeezed and deformed can exert a force on the outer wall of the test tube body, thereby preventing the test tube body from being separated from the body. The test tube self-clamping The sleeve can realize the self-clamping function of the test tube body. The design of the inner sleeve body and the outer sleeve body makes it more convenient to install and clamp the elastic pieces.

The present application also discloses a water quality testing device, including the test tube cleaning mechanism described above.

In one embodiment of the present invention, it further includes a mobile grabbing mechanism, and the mobile grabbing mechanism includes:

a mobile unit;

Mounting frame, mounted on the mobile unit;

a first lifting element mounted on the mounting frame, the first lifting element comprising a first driving member capable of lifting;

a first clamping element, which is relatively fixed with the first driving member, and the first clamping element is used for clamping objects;

a second lifting element, mounted on the mounting frame, the second lifting element comprising a second driving member capable of lifting;

A syringe assembly is mounted on the mounting bracket, the syringe assembly is capable of drawing and releasing liquids.

In one embodiment of the present invention, the moving unit is a manipulator.

In one embodiment of the present invention, the moving unit includes a first linear module, a second linear module and a third linear module, and the second linear module is installed on the movable side of the first linear module. The third linear module is installed on the movable part of the second linear module, the first linear module is used to drive the second linear module to move along the X-axis direction, the The second linear module is used to drive the third linear module to move along the Y-axis direction, the movable part of the third linear module can move along the Z-axis direction, the Z-axis direction is the vertical direction, the X-axis The direction, the Y-axis direction and the Z-axis direction are perpendicular to each other; the mounting frame is fixed to the movable part of the third linear module.

The beneficial effects of the present invention are: the test tube cleaning mechanism of the present application can automatically clean the test tube. When in use, the test tube is fixed on the test tube self-clamping sleeve, and the storage rack is rotated 180° by the rotating drive member, and is switched from the initial working position to the test tube self-clamping sleeve. Cleaning the working position, at this time the opening of the test tube is downward, and then the first reciprocating element and the water spray head work, water is sprayed in the test tube, the test tube is cleaned, and the waste water falls into the waste liquid box. After the cleaning is completed, the second reciprocating element and The hair dryer works to dry the test tube, and the storage rack rotates and resets after drying.

Description of drawings:

Fig. 1 is the schematic diagram of embodiment 1 water quality testing equipment;

Fig. 2 is the schematic diagram of the hidden part of the structure of the water quality testing equipment;

Fig. 3 is the structural representation of mobile grabbing mechanism;

4 is a schematic structural diagram of another angle of the mobile grabbing mechanism;

Fig. 5 is the schematic diagram of embodiment 1 test tube self-clamping sleeve;

Fig. 6 is the sectional view of embodiment 1 test tube self-clamping sleeve;

Fig. 7 is the exploded view of embodiment 1 test tube self-clamping sleeve;

Fig. 8 is the schematic diagram of shaking mechanism;

Fig. 9 is the schematic diagram of pouring waste liquid mechanism;

Figure 10 is a schematic diagram of a waste liquid pouring mechanism with a drain funnel;

Fig. 11 is the schematic diagram of opening and closing cover mechanism;

Figure 12 is a schematic diagram of the internal structure of the water quality detection part;

Figure 13 is a schematic diagram of a dosing mechanism;

Figure 14 is a schematic view of a cleaning tank;

Figure 15 is a schematic view of a cuvette clamping element;

Fig. 16 is the schematic diagram after the cuvette clamping element clamps the cuvette;

Fig. 17 is the schematic diagram of embodiment 2 shaking and heating mechanism;

Fig. 18 is the schematic diagram of embodiment 2 test tube self-clamping sleeve;

Figure 19 is an exploded view of the test tube assembly of Example 3;

Figure 20 is a cross-sectional view of the test tube assembly of Example 3;

Figure 21 is a schematic diagram of the water quality testing equipment in Example 4

Figure 22 is a schematic diagram of the stirring mechanism and the sample cup after omitting the magnetic stirrer

Figure 23 is a schematic diagram of the sample cup conveying mechanism, the stirring mechanism and the syringe cleaning mechanism on the rack;

Figure 24 is a schematic diagram of another angle of the sample cup conveying mechanism, stirring mechanism and syringe cleaning mechanism on the frame

Figure 25 is a schematic diagram of the stirring mechanism after omitting the magnetic stirrer

Figure 26 is a cross-sectional view of the stirring mechanism after the magnetic stirrer is omitted;

Figure 27 is a cross-sectional view of the syringe cleaning mechanism;

Figure 28 is a schematic diagram of the test tube cleaning mechanism in Example 5;

FIG. 29 is a schematic diagram of another angle of the test tube cleaning mechanism in Example 5. FIG.

The reference numbers in the figure are:

1. Rack; 2. Storage rack; 3. Mobile grabbing mechanism; 4. Opening and closing cover mechanism; 5. Dosing mechanism; 6. Shaking mechanism; 7. Digestion apparatus; 8. Detector; 9. Mobile unit; 10. Grab assembly; 11. Mounting frame; 12. First lifting element; 14. First clamping element; 16. Active rod; 17. Mounting block; 18. L-shaped plate; 19. First rail; 20, vertical part; 21, horizontal part; 22, first linear module; 23, second linear module; 24, third linear module; 25, second lifting element; 26, second driving part; 27, Syringe assembly; 28, mounting part; 29, servo motor; 30, clamping cylinder; 31, bracket; 32, inductive proximity sensor; 33, medicine bottle; 34, medicine dispensing rack; 35, mounting hole; 36, peristaltic pump ; 37, dressing change drive assembly; 38, driving wheel; 39, driven wheel; 40, transmission belt; 41, moving block; 42, switching motor; 43, first rotating element; 44, second rotating element; 45, test tube self Clamping sleeve; 46, test tube body; 47, body; 48, clamping shrapnel; 49, arc part; 50, inner sleeve body; 51, outer sleeve; 52, through hole; 53, limit part; 54, Limit groove; 55, Limit step; 56, Waste liquid pouring mechanism; 57, Rotary liquid pouring element; 58, Second clamping element; 59, Drain rack; 60, Drain hole; 61, Switch element; 62 , waste liquid tank; 63, drain funnel; 64, rotary transposition element; 65, cuvette clamping element; 66, cuvette; 67, cleaning box; 68, cleaning tank; 69, cleaning nozzle; 70, Heating element; 71, test tube cover; 72, inner part; 73, outer part; 74, annular groove; 75, first tapered guide surface; 76, second tapered guide surface; 77, clamping part; 78, track; 79, sample cup conveying mechanism; 80, stirring mechanism; 81, syringe cleaning mechanism; 82, sample cup; 83, sampling position; 84, input assembly; 85, output assembly; 86, push cup element; 87, shelf; 88, roller; 89, conveyor belt; 90, accommodating groove; 91, conveyor belt drive motor; 92, notch; 93, straight side wall; 94, arc-shaped side wall; 95, arc limit block; 96 , Limit block driving cylinder; 97, Ring iron plate; 98, Adjustment rotating part; 99, Arc push plate; 100, Magnetic stirrer; 101, Conveying pipe; 102, Material storage part; 103, Conveying part; 104 105, magnetic rod; 106, the first blocking piece; 107, the first blocking piece driving cylinder; 108, the second blocking piece; 109, the second blocking piece driving cylinder; 110, the second blocking piece lifting cylinder ; 111, conveying pipe lifting element; 112, distance sensor; 113, conveying pipe rotating element; 114, mounting plate; 115, circulation box; 116, filter layer; 117, upper layer; 118, lower layer; 119, water pump; sensor; 121, test tube cleaning mechanism; 122, fixed groove; 123, rotation 124, cleaning rack; 125, water spray head; 126, first reciprocating element; 127, air drying rack; 128, blowing head; 129, second reciprocating element; 130, waste liquid box; 131, escape port; 132 , enclosure; 133, outlet pipe.

Detailed ways:

The present invention will be described in detail below with reference to the accompanying drawings.

Example 1

As shown in Figures 1 to 13, a water quality testing equipment, capable of automatically testing water quality, includes a rack 1, and the rack 1 is installed with;

Storage rack 2 for placing test tubes and cuvettes 66;

Move the grabbing mechanism 3 for grabbing items and taking samples;

The opening and closing cover mechanism 4 is used to open or close the test tube cover 71 of the test tube;

The dosing mechanism 5 is used to add medicament to the test tube body 46;

Shaking mechanism 6, for fully mixing the sample and the medicament;

Digestion apparatus 7, used to heat and digest the shaken liquid;

The detector 8 is used to detect the liquid in the contrast dish 66 .

As shown in Figures 2, 3 and 4, in this embodiment, the mobile grabbing mechanism 3 includes:

a mobile unit 9;

The mounting frame 11 is mounted on the mobile unit 9;

The first lifting element 12 is installed on the mounting frame 11, and the first lifting element 12 includes a first driving member capable of lifting;

The first clamping element 14 is relatively fixed with the first driving member, and the first clamping element 14 is used for clamping the article;

The second lifting element 25 is mounted on the mounting frame 11, and the second lifting element 25 includes a second driving member 26 that can be lifted and lowered;

A syringe assembly 27, mounted on the mount 11, is capable of drawing and releasing liquids.

The first lifting member 12 and the second lifting member 25 are installed on the mounting frame 11, and the first lifting member 12 can control the lifting and lowering of the first clamping member 14, and the second lifting member 25 can control the lifting and lowering of the syringe assembly 27, and only one movement is required. The unit 9 can realize the operations of grasping objects and taking samples, and the whole structure is more compact.

In practical use, the injector assembly 27 can use an existing electric injector. The syringe assembly 27 includes a syringe, a needle connected to the lower end of the syringe, a piston slidably arranged in the syringe, and an electric mechanism for driving the piston to move back and forth.

In this embodiment, the mounting frame 11 includes two mutually perpendicular mounting portions 28 , and the first lifting element 12 and the second lifting element 25 are respectively mounted on the two mounting portions 28 . The design of the installation parts 28 that are perpendicular to each other facilitates the installation of the first lifting element 12 and the second lifting element 25 .

In this embodiment, a gravity sensor (not shown in the figure) is installed on the first driving member, and the upper end of the first clamping element 14 is fixed to the gravity sensor. In practice, the mobile grabbing mechanism 3 further includes a controller and an alarm unit, and the controller is electrically connected to the gravity sensor and the alarm unit. The alarm unit may include structures such as a horn, an alarm lamp, and the like.

The force signal can be fed back through the gravity sensor, which makes the equipment operate more reliably. Each time the first clamping element 14 clamps a test tube, a cuvette 66 and other items, there is corresponding weight data, which is fed back to the controller to determine whether the clamping is successful. If there is a large error in the weight after clamping, or a large force is suddenly transmitted from the gravity sensor during normal operation (for example, the first clamping element 14 hits the object), the controller can determine the abnormality and control the The alarm unit works.

In actual use, the moving unit 9 is a manipulator. In this embodiment, the moving unit 9 includes a first linear module 22 , a second linear module 23 and a third linear module 24 , and the second linear module 23 is installed on the movable part of the first linear module 22 . , the third linear module 24 is installed on the movable part of the second linear module 23, the first linear module 22 is used to drive the second linear module 23 to move along the X-axis direction, the second linear module 23 is used for In order to drive the third linear module 24 to move along the Y-axis direction, the movable part of the third linear module 24 can move along the Z-axis direction, the Z-axis direction is the vertical direction, and the X-axis direction, the Y-axis direction and the Z-axis direction are two. The two are perpendicular to each other; the mounting frame 11 is fixed to the movable part of the third linear module 24 .

In practical application, the linear module can be an existing structure such as a ball screw pair, a rack and pinion, etc.

In this embodiment, the first lifting element 12 and the second lifting element 25 are both telescopic cylinders.

In this embodiment, the first clamping element 14 is a clamping jaw cylinder. Gripper cylinder is also called pneumatic finger, pneumatic gripper or pneumatic gripper.

In practice, the first driving member may be a movable rod 16 , the end of the movable rod 16 has a mounting block 17 , and the gravity sensor is mounted on the mounting block 17 . In this embodiment, the side wall of the first lifting element 12 has a first guide rail 19 , the first driving member includes a movable rod 16 and an L-shaped plate 18 , and the vertical portion 20 of the L-shaped plate 18 is slidably matched with the first guide rail 19 . , the horizontal part 21 of the L-shaped plate 18 is fixed with the movable rod 16 , and the gravity sensor is installed on the horizontal part 21 . Through the cooperation of the first guide rail 19 and the vertical portion 20, when the movable rod 16 moves, the L-shaped plate 18 can be reliably driven to move, and the movement structure is safe and reliable.

In this embodiment, the mounting frame 11 , the first lifting element 12 , the gravity sensor and the first clamping element 14 can form the grabbing assembly 10 for grabbing the article.

As shown in FIG. 6 , the test tube of this embodiment includes a test tube body 47 and a test tube cover 71 , and the test tube body 47 and the test tube cover 71 are threadedly connected. As shown in Figures 11 and 12, in this embodiment, the opening and closing cover mechanism 4 includes:

mobile unit 9;

The grabbing assembly 10 is installed on the moving unit 9, which can clamp the item and drive the item to move up and down;

Servo motor 29;

The clamping cylinder 30 is installed on the rotating shaft of the servo motor 29 for clamping the test tube body 46 .

The opening and closing mechanism 4 can automatically open the test tube cover 71 or screw the test tube cover 71 . When the cover needs to be opened, the clamping cylinder 30 clamps the test tube body 46, the grab assembly 10 clamps the test tube cover 71, the servo motor 29 rotates, and the grab assembly 10 drives the test tube cover 71 to move upward; when it is necessary to tighten the test tube cover At 71:00, the clamping cylinder 30 clamps the test tube body 46, the grab assembly 10 clamps the test tube cover 71, the servo motor 29 rotates in the opposite direction, and the grab assembly 10 drives the test tube cover 71 to move downward.

In this embodiment, the moving grab mechanism 3 and the opening and closing cover mechanism 4 share the moving unit 9 and grab assembly 10 .

In practical application, it is preferred that, in order to avoid the problem of damaging the test tube when the force is large and the problem that the force cannot be tightened when the force is small, the servo motor 29 works in a torque control mode, and the motor outputs a constant rotational force. When the test tube cover 71 is tightened, When the torque is greater than the output force of the motor, the motor stops moving.

As shown in FIG. 11 , in this embodiment, the servo motor 29 includes a bracket 31 , and an inductive proximity sensor 32 is mounted on the bracket 31 . The inductive proximity sensor 32 is aligned with the clamping cylinder 30 for detecting the Gripper position.

In actual use, a pressure regulating valve is installed on the gas pipe of the clamping cylinder 30 . The pressure regulating valve can be adjusted to a smaller pressure to cooperate with the action of opening or closing the cover.

As shown in Figures 2, 12 and 13, in this embodiment, the dosing mechanism 5 includes:

Various medicine bottles 33;

The medicine dispensing rack 34 has a plurality of installation holes 35 arranged at intervals;

The medicine tube (not shown in the figure), the outlet end is connected with the mounting hole 35, and the inlet end is connected with the medicine bottle 33;

A plurality of peristaltic pumps 36 are installed on the corresponding medicine tubes;

The medicine changing drive assembly 37 is used to drive the medicine discharging rack 34 to move or rotate.

By setting the peristaltic pump 36, the medicine can be output accurately and reliably, and the medicine rack 34 can be driven to move by the medicine changing drive assembly 37, so that different medicines can be dropped into the test tube body 46 as required.

In this application, the peristaltic pump 36 is installed on the corresponding medicine tube, which means that the medicine tube is disconnected somewhere in the middle, and the two ends of the disconnected part are respectively connected to the two liquid passage holes of the peristaltic pump 36 .

In actual use, the outlet end of the medicine tube has an injection nozzle, and the injection nozzle is fixed on the installation hole 35 .

As shown in FIG. 13 , in this embodiment, the dressing-changing drive assembly 37 is used to drive the medicine-discharging rack 34 to move linearly, and the dressing-changing driving assembly 37 includes a driving wheel 38 , a driven wheel 39 , a transmission belt 40 , a moving block 41 and a switching motor 42 , the transmission belt 40 is wound around the driving wheel 38 and the driven wheel 39 , the switching motor 42 is used to drive the driving wheel 38 to rotate, and the medicine discharge rack 34 is installed on the moving block 41 .

As shown in FIG. 12 , in this embodiment, the dressing driving assembly 37 further includes a rail 78 , and the moving block 41 is slidably arranged on the rail 78 . The provision of the rails 78 enables the moving block 41 to move reliably and stably.

In actual use, the dosing mechanism 5 may also include a baffle plate and a baffle plate driving element that drives the baffle plate to translate. The baffle plate driving element can be a cylinder and other components. Below the medicine rack 34, the medicine is prevented from falling and contaminating the equipment.

As shown in FIG. 8, in this embodiment, the shaking mechanism 6 includes:

the first rotating element 43;

The second rotation element 44 is fixed to the rotation axis of the first rotation element 43, and the rotation axis axis of the second rotation element 44 is perpendicular to the rotation axis axis of the first rotation element 43;

The test tube clamping piece is fixed with the rotating shaft of the second rotating element 44 , and the test tube clamping piece is used for automatically clamping the test tube body 46 .

Through the first rotating element 43 and the second rotating element 44 , the test tube clamp can be driven to move in multiple dimensions, and a better shaking operation can be achieved.

In practice, the first rotating element 43 is a rotating cylinder or a motor; the second rotating element 44 is a rotating cylinder or a motor.

In this embodiment, the rotation axis of the first rotating element 43 is arranged horizontally.

In actual use, the first rotating element 43 can perform a reciprocating rocking motion, and the second rotating element 44 can rotate in one direction, or rotate back and forth.

As shown in Figures 5, 6 and 7, in this embodiment, the test tube clamping member is a test tube self-clamping sleeve 45, and the test tube self-clamping sleeve 45 includes a main body 47 into which the test tube body 46 is inserted. The clamping elastic piece 48 includes an arc-shaped portion 49 protruding toward one side of the axis of the body 47 .

When the test tube body 46 is inserted into the body 47, the arc-shaped portion 49 can be compressed, and the arc-shaped portion 49 after being squeezed and deformed can exert a force on the outer wall of the test tube body 46, thereby preventing the test tube body 46 from detaching from the main body 47. The test tube self-clamping sleeve 45 of the present application can realize the self-clamping function for the test tube body 46 .

As shown in FIGS. 6 and 7 , in this embodiment, the main body 47 includes an inner sleeve body 50 and an outer sleeve body 51 , the inner sleeve body 50 has a through hole 52 , and the clamping elastic piece 48 further includes a limiting portion 53 . 53 is arranged on at least one end of the arc-shaped portion 49, the outer casing 51 is overlaid on the inner casing 50 and fixed with the inner casing 50, and the limit portion 53 of the clamping elastic sheet 48 is located between the inner casing 50 and the outer casing 51, The arc portion 49 of the clamping elastic piece 48 passes through the through hole 52 . The design of the inner sleeve body 50 and the outer sleeve body 51 makes it easier to install the clamping elastic piece 48 .

In this embodiment, the through hole 52 is a bar-shaped hole, and the length direction of the through hole 52 is parallel to the axial direction of the inner sleeve body 50 .

As shown in FIG. 7 , in this embodiment, the outer side wall of the inner sleeve body 50 further has limit grooves 54 on both sides of the through hole 52 , and the two ends of the clamping elastic pieces 48 are respectively set in the corresponding limit grooves 54 middle. The two ends of the clamping elastic pieces 48 are respectively arranged in the corresponding limiting grooves 54, which means that the limiting portion 53 cooperates with the limiting grooves 54. This design not only facilitates the installation of the clamping elastic pieces 48, but also can reliably limit the clamping Shrapnel 48.

In practice, the inner casing 50 and the outer casing 51 are welded, screwed, clamped or connected by fasteners.

As shown in FIGS. 6 and 7 , in this embodiment, the lower part of the inner sleeve body 50 has a limiting step 55 , and the lower end of the outer casing 51 abuts against the limiting step 55 .

As shown in FIGS. 5 and 7 , in this embodiment, there are a plurality of clamping elastic pieces 48 , which are evenly arranged around the axis of the body 47 .

As shown in FIG. 12 , the water quality testing apparatus further includes a waste liquid pouring mechanism 56 . As shown in Figures 9 and 10, the waste liquid removal mechanism 56 includes:

Rotate the pouring element 57;

The second clamping element 58, mounted on the rotating shaft of the rotating liquid pouring element 57, is used for clamping the container;

The drainage rack 59 has a plurality of drainage holes 60, and each drainage hole 60 is used to connect different drainage pipes (not shown in the figure);

The switching element 61 is used to drive the liquid discharge rack 59 to move or rotate, so that one of the liquid discharge holes 60 receives the waste liquid.

The second clamping element 58 is used to clamp the container with waste liquid, and the container can be tilted by rotating the pouring element 57, so that the waste liquid falls into the liquid discharge hole 60 on the liquid discharge rack 59, which can be adjusted by the switching element 61 The position of each liquid discharge hole 60 enables different liquid discharge holes 60 to receive waste liquid, that is, separate discharge or separate recovery can be realized according to the difference of waste liquid.

The container in the present application refers to items such as the test tube body 46, the cuvette 66 and the like for containing liquid.

In practice, the rotating liquid pouring element 57 is a rotating cylinder or a motor, and the rotating shaft of the rotating liquid pouring element 57 is set horizontally.

In this embodiment, the second clamping element 58 is a clamping jaw cylinder.

In practice, the switching element 61 is a rotary cylinder or a motor, and the switching element 61 is used to drive the liquid discharge rack 59 to rotate.

In this embodiment, the switching element 61 is a telescopic cylinder or an electric push rod, and the switching element 61 is used to drive the liquid discharge rack 59 to move.

As shown in FIGS. 2 and 12 , in this embodiment, the waste liquid pouring mechanism 56 further includes a waste liquid tank 62 , and one end of the drain pipe away from the drain rack 59 communicates with the corresponding waste liquid tank 62 .

In actual use, the waste liquid pouring mechanism 56 may also be provided with a pH sensor and a sensor telescopic element for driving the pH sensor to move up and down. The pH sensor can detect the acidity and alkalinity of the waste liquid, so as to determine which liquid discharge hole 60 to discharge to, that is, the acid liquid and the alkali liquid can be discharged or recovered respectively.

In this embodiment, there are two drain holes 60 .

As shown in FIG. 10 , in order to prevent the waste liquid from spilling out, the waste liquid pouring mechanism 56 further includes a drain funnel 63, and the drain hole 60 is located below the drain funnel 63, and the waste liquid passes through the drain funnel 63 and falls into the corresponding drain. Liquid hole 60.

In this embodiment, the water quality testing equipment further includes a cuvette cleaning mechanism, as shown in Figures 14, 15 and 16, the cuvette cleaning mechanism includes:

Rotate the transposition element 64;

The cuvette 66 clamping element 65 is installed on the rotating shaft of the rotary transposition element 64 for clamping the cuvette 66, and when the cuvette 66 clamping element 65 clamps the cuvette 66, the cuvette 66 is clamped. The upper and lower ends of the 66 are exposed to the cuvette 66 and the clamping element 65;

The cleaning box 67 has a plurality of cleaning tanks 68, and the cuvette 66 is used to be placed in the cleaning tank 68 upside down;

The cleaning spray head 69 is installed at the bottom of the cleaning tank 68 and is used for spraying cleaning liquid to the cuvette 66 .

The cuvette 66 can be clamped and reversed by the cooperation of the rotating and changing element 64 and the clamping element 65 of the cuvette 66, so that the open end of the cuvette 66 faces downward, so as to facilitate external gripping The cuvette 66 is grabbed into the cleaning tank 68 of the cleaning box 67 by taking the structure, and then the cuvette 66 is cleaned by spraying the cleaning liquid through the cleaning nozzle 69 .

The cleaning liquid of the present application may be a liquid that can be used to clean the cuvette 66, such as water.

In this embodiment, the rotary transposition element 64 is a rotary cylinder or a motor, and the rotating shaft of the rotary transposition element 64 is arranged horizontally.

In this embodiment, the bottom of the cleaning tank 67 has a liquid outlet (not shown in the figure).

In practice, preferably, the cuvette cleaning mechanism further includes a cover plate rotatably installed on the open end of the cleaning box 67 and a cover plate driving element for driving the cover plate to turn over. Setting a cover plate can effectively prevent the cleaning liquid from splashing out.

In practice, preferably, the cuvette cleaning mechanism further includes an air-drying nozzle, and the air-drying nozzle is located at the bottom of the cleaning tank 68 . After the cleaning is completed, the color dish 66 can be blown dry by the air drying nozzle.

The water quality testing equipment of this embodiment can divide the testing steps into small steps, such as opening the lid, taking water samples, closing the lid, mixing, digestion, adding reagents, cleaning, and colorimetric. Sort and combine the complete detection steps to achieve the purpose of actual detection.

Example 2

As shown in FIGS. 17 and 18 , the difference between this embodiment and Embodiment 1 is that the digestion apparatus 7 is removed in this embodiment, and a heating element 70 is added on the basis of the shaking mechanism 6 of Embodiment 1 to form a shaking heating mechanism. As shown in Figures 17 and 18, the shake heating mechanism includes:

the first rotating element 43;

The second rotation element 44 is fixed to the rotation axis of the first rotation element 43, and the rotation axis axis of the second rotation element 44 is perpendicular to the rotation axis axis of the first rotation element 43;

The test tube self-clamping sleeve 45 is fixed to the rotating shaft of the second rotating element 44 for automatically clamping the test tube body 46 , and a heating element 70 is installed on the test tube self-clamping sleeve 45 .

Through the first rotating element 43 and the second rotating element 44, the test tube can be driven to move in multiple dimensions from the clamping sleeve 45, and better shaking operation can be achieved. And after the shaking is completed, the test tube body 46 does not need to be removed, and the heating operation can be directly performed by the heating element 70 .

In practice, the heating element 70 is a heating wire or a heating plate.

In this embodiment, the test tube self-clamping sleeve 45 includes a main body 47 into which the test tube body 46 is inserted. The upper part of the main body 47 is provided with a clamping elastic piece 48, and the lower part of the main body 47 is installed with a heating element 70. The clamping elastic piece 48 includes a An arc-shaped portion 49 protruding on one side of the axis of the body 47 . When the test tube body 46 is inserted into the body 47, the arc-shaped portion 49 can be compressed, and the arc-shaped portion 49 after being squeezed and deformed can exert a force on the outer wall of the test tube body 46, thereby preventing the test tube body 46 from detaching from the main body 47. The test tube self-clamping sleeve 45 of the present application can realize the self-clamping function for the test tube body 46 .

In the present embodiment, the main body 47 includes an inner sleeve body 50 and an outer sleeve body 51 , the inner sleeve body 50 has a through hole 52 , and the clamping elastic piece 48 further includes a limiting portion 53 , and the limiting portion 53 is provided on the arc portion 49 . At least one end, the outer casing 51 is overlaid on the inner casing 50 and fixed with the inner casing 50 , the limiting portion 53 of the clamping elastic sheet 48 is located between the inner casing 50 and the outer casing 51 , and the arc portion of the clamping elastic sheet 48 is located between the inner casing 50 and the outer casing 51 . 49 passes through the through hole 52; the heating element 70 is a heating disk, and the heating disk covers the lower part of the inner casing 50 and is located between the outer casing 51 and the inner casing 50. This design of the inner sleeve body 50 and the outer sleeve body 51 makes it easier to install the clamping elastic piece 48 and the heating element 70 .

In this embodiment, the through hole 52 is a bar-shaped hole, and the length direction of the through hole 52 is parallel to the axial direction of the inner sleeve body 50; the inner sleeve body 50 and the outer sleeve body 51 are welded, clamped or connected by fasteners; A rotating element 43 is a rotating cylinder or a motor; the second rotating element 44 is a rotating cylinder or a motor.

In this embodiment, the rotation axis of the first rotating element 43 is arranged horizontally.

Example 3

The difference between this embodiment and Embodiment 1 or 2 is that the test tube and the opening and closing cover mechanism 4 are different. As shown in FIGS. 19 and 20 , the test tube assembly of this embodiment includes a test tube body 46 and a test tube cover 71 , and the test tube cover 71 is connected to the test tube tube. The test tube cover 71 includes an inner insertion portion 72 and an outer outer portion 73 arranged coaxially, an annular groove 74 is formed between the inner insertion portion 72 and the outer outer portion 73, and the annular groove 74 is used to be clamped on the test tube body 46. The open end of the test tube cover 72 is a cylindrical structure, and the end of the insert section 72 has a first tapered guide surface 75; The inner side wall is in sealing fit, and the outer sleeve portion 73 of the test tube cover 71 is in sealing fit with the outer side wall of the test tube body 46 .

The test tube assembly of the present application can achieve double sealing, that is, the inner insert portion 72 is sealed with the inner side wall of the test tube body 46 , the outer portion 73 is sealed with the outer side wall of the test tube body 46 , and can be guided by the first tapered guide surface 75 The positioning is convenient for the test tube cover 71 to be reliably sleeved on the test tube body 46 .

As shown in FIGS. 19 and 20 , in this embodiment, the end portion of the inner side wall of the outer casing portion 73 has a second tapered guide surface 76 .

As shown in FIGS. 19 and 20 , in the present embodiment, the end portion of the insertion portion 72 is located outside the outer portion 73 . After this arrangement, the first tapered guide surface 75 can first cooperate with the test tube body 46 during the socket connection, and can be automatically guided and positioned when the test tube cover 71 is not aligned with the test tube body 46 .

As shown in FIGS. 19 and 20 , in this embodiment, the end of the test tube cover 71 facing away from the inserting portion 72 has a clamping portion 77 . The clamping portion 77 is provided to facilitate other components to clamp the test tube cover 71 .

The opening and closing cover mechanism 4 of this embodiment does not require the servo motor 29 and the clamping cylinder 30 integrated in the first or second embodiment, and the opening and closing cover mechanism 4 of this embodiment only needs one clamping cylinder 30 for clamping the test tube. Body 46 is sufficient. The test tube cover 71 can be driven to move by the moving unit 9 and the grab assembly 10 , so that the test tube cover 71 is separated from the test tube body 47 or the test tube body 47 is sealed.

Example 4

As shown in FIG. 21 , this embodiment discloses a water quality detection device. The difference from Embodiment 1, 2 or 3 is that this embodiment further includes a sample cup conveying mechanism 79 , a stirring mechanism 80 and a syringe cleaning mechanism 81 . The rack 1 of the embodiment has a sampling position 83 on which the sample cup 82 is placed.

As shown in FIGS. 21 , 23 and 24 , the sample cup conveying mechanism 79 includes a push cup element 86 and an input assembly 84 and an output assembly 85 respectively disposed on both sides of the sampling position 83 , and the push cup element 86 is located at the input assembly 84 away from the output assembly 85 . side;

Both input assembly 84 and output assembly 85 include:

shelf 87;

The two rollers 88 are rotatably mounted on the shelf 87;

The conveyor belt 89 is wound around the two rollers 88, and the outer surface of the conveyor belt 89 is provided with a plurality of accommodating grooves 90, and the accommodating grooves 90 are used for placing the sample cups 82;

The conveyor belt drive motor 91 is used to drive one of the rollers 88 to rotate;

The push cup element 86 is used for pushing the sample cup 82 of the input assembly 84 into the sampling position 83 and for pushing the sample cup 82 of the sampling position 83 into the receiving groove 90 of the output assembly 85 .

A plurality of sample cups 82 can be placed at the same time through the input assembly 84, and the sample cups 82 of the input assembly 84 close to the sample position can be pushed into the sampling position 83 through the cup push element 86. When the sample cups 82 in the sampling position 83 are sampled, the cups are pushed The element 86 works further, pushing the sample cup 82 of the sampling position 83 into the receiving groove 90 of the output assembly 85 . The sample cup conveying mechanism 79 of the present application can realize the automatic delivery of the sample cup 82 and the removal of the sample cup 82, which can effectively reduce the labor amount compared with manual operation.

As shown in FIGS. 23 and 24 , in this embodiment, the frame 1 has notches 92 on both sides of the sampling position 83 , the end of the conveyor belt 89 of the input assembly 84 and the end of the conveyor belt 89 of the output assembly 85 The parts are respectively located at the corresponding notches 92 .

As shown in FIG. 23 , in this embodiment, the sample cup 82 is a circular cup, one end of the accommodating groove 90 extends to the edge of the conveyor belt 89 , and the accommodating groove 90 includes two parallel straight side walls 93 and connecting two The lower end of the sample cup 82 is placed in the accommodating groove 90 , and the outer side wall of the sample cup 82 abuts against the arc-shaped side wall 94 . The accommodating groove 90 is arranged in this way to facilitate the positioning of the sample cup 82 and facilitate the removal or removal of the sample cup 82 .

As shown in FIGS. 23 and 24 , in this embodiment, the sample cup conveying mechanism 79 further includes an arc-shaped limit block 95 slidably arranged on the frame 1 and a limit block drive for driving the arc-shaped limit block 95 to move up and down The air cylinder 96, the arc-shaped limit block 95 is located at the sampling position 83, when the arc-shaped limit block 95 moves upward, it is used to limit the position of the sample cup 82, so that the cup push element 86 can accurately push the sample cup 82 of the input assembly 84 Input sample bit 83.

As shown in FIGS. 22 and 23 , in this embodiment, the sample cup 82 has an annular installation groove (not shown in the figure), an annular iron sheet 97 is installed on the annular installation groove, and an arc-shaped side wall 94 is installed with a Magnet (not shown). Through the cooperation of the magnet and the ring-shaped iron piece 97 , a magnetic attraction force can be formed, so that the sample cup 82 can be better positioned in the accommodating groove 90 .

In order to prevent the annular iron sheet 97 from interfering with the magnetic rod 105, preferably, the distance between the annular iron sheet 97 and the bottom wall of the sample cup 82 is greater than or equal to 5 mm.

As shown in FIGS. 23 and 24 , in this embodiment, the input assembly 84 further includes a position-adjusting rotary member 98 , which cooperates with the frame 87 to adjust the angle of the frame 87 ; the position-adjusting rotary member 98 is a motor Or rotate the cylinder.

In actual use, in the initial state, the sample cups 82 are placed in the accommodating grooves 90 of the input assembly 84. At this time, it is not guaranteed that the side walls of all the sample cups 82 are in contact with the arc-shaped side walls. Before the conveyor belt 89 moves , the rotation of the shelf 87 is controlled by the adjusting rotary member 98, so that the sample cup 82 is inclined to the side of the arc side wall. Under the dual action of gravity and magnetic force, the sample cup 82 can move until it abuts against the arc side wall.

In practice, the cup push element 86 is an air cylinder or an electric push rod.

As shown in FIG. 23 , in this embodiment, an arc-shaped push plate 99 is fixed on the movable part of the push-cup element 86 , and the arc-shaped push plate 99 is convenient to cooperate with the sample cup 82 . In actual use, the surface of the curved push plate 99 that matches the sample cup 82 has a flexible pad, and the flexible pad can protect the sample cup 82 .

As shown in Figures 21, 22, 23, 24, 25 and 26, the stirring mechanism 80 includes:

Magnetic stirrer 100, located below sampling position 83 (see Figure 24);

The conveying pipe 101 includes a storage part 102 located on the upper side and a conveying part 103 located on the lower side. The lower end of the conveying part 103 is used to extend into or align with the beaker of the sampling position 83, and the storage part 102 has a lengthwise direction. The bar mouth 104;

A plurality of magnetic rods 105 are placed in the material storage part 102 up and down sequentially, and the magnetic stirrer 100 is used to control the rotation of the magnetic rods 105 falling into the sample cup 82 at the sampling position 83;

The first blocking piece 106 is used to pass through the bar-shaped opening 104 and support the magnetic rod 105 at the bottom of the storage part 102;

The first blocking piece drives the cylinder 107 to drive the first blocking piece 106 to reciprocate;

The second blocking piece 108 is used to pass through the bar-shaped opening 104 and support the second magnetic rod 105 at the bottom of the storage part 102;

The second blocking sheet driving cylinder 109 is used to drive the second blocking sheet 108 to reciprocate;

The second blocking sheet lifting cylinder 110 is used to drive the second blocking sheet driving cylinder 109 to move up and down;

The conveying pipe lifting element 111 is used to drive the conveying pipe 101 , the first blocking sheet driving cylinder 107 , the second blocking sheet driving cylinder 109 and the second blocking sheet lifting cylinder 110 to move up and down synchronously.

In the initial state, the first blocking piece 106 extends into the bar-shaped opening 104 to support the magnetic rod 105 at the bottom of the storage part 102 . When a magnetic rod 105 needs to be dropped to the sample cup 82 , the lifting element 111 of the conveying pipe works. , the conveying pipe 101 is moved down, the lower end of the conveying part 103 is used to extend into or align with the beaker of the sampling position 83, and then the second blocking sheet drives the cylinder 109 to work, so that the second blocking sheet 108 passes through the bar-shaped opening 104 to support the storage The second magnetic rod 105 at the bottom of the material portion 102, and then the second blocking sheet lifting cylinder 110 works, driving the second blocking sheet to drive the cylinder 109 and the second blocking sheet 108 to rise, and the bottom magnetic rod 105 is no longer connected to other The magnetic bar 105 is sucked, and when the first blocking piece drives the cylinder 107 to drive the first blocking piece 106 to exit the bar-shaped opening 104, the lowermost magnetic rod 105 falls into the sample cup 82 along the conveying part 103 under the action of gravity, Under the action of the magnetic stirrer 100, the magnetic rod 105 in the sample cup 82 rotates to perform the stirring operation. Finally, the first blocking sheet 106 is reset, the second blocking sheet lifting cylinder 110 and the second blocking sheet driving cylinder 109 are reset, and the conveying pipe lifting element 111 is reset, waiting for the next discharge.

The stirring mechanism 80 of the present application can continuously output the magnetic rods 105, and each magnetic rod 105 cooperates with a sample cup 82. Under the action of the magnetic stirrer 100, the stirring operation can be performed, and there is no need to clean the magnetic rods after each stirring. 105. After the detection is completed, the used magnetic rods 105 can be cleaned uniformly.

In practical application, the magnetic stirrer 100 can be the magnetic stirrer 100 of Jiangsu Jinyi Instrument Technology Co., Ltd. model 85-2B.

As shown in FIG. 26 , in this embodiment, a distance sensor 112 is installed at the lower end of the conveying part 103 .

The distance sensor 112 can detect the distance between the conveying part 103 and the liquid in the sample cup 82, so that the operation of the conveying pipe lifting element 111 can be controlled, so that the drop position of the magnetic rod 105 is as close to the liquid level as possible, so as to prevent the magnetic rod 105 from falling. Liquid was spilled in large quantities.

In this embodiment, the conveying pipe 101 , the first blocking sheet 106 and the second blocking sheet 108 are all made of non-metallic materials. In practical use, it can be plastic.

In practice, the lifting element 111 of the conveying pipe is an air cylinder or an electric push rod.

As shown in FIGS. 25 and 26 , in this embodiment, a conveying pipe rotating element 113 is further included, and the conveying pipe rotating element 113 cooperates with the conveying pipe lifting element 111 to control the rotation of the conveying pipe lifting element 111 . The conveying tube 101 can be driven to rotate by the conveying tube rotating element 113, so as to be farther away from the sample cup 82 of the sampling position 83, without affecting the operation of the sampling cup by other mechanisms.

In practice, the conveying pipe rotating element 113 is a rotating cylinder or a motor.

As shown in FIGS. 25 and 26 , in this embodiment, a mounting plate 114 fixed to the conveying pipe 101 is further included, the second blocking sheet lifting cylinder 110 is fixed on the mounting plate 114 , and the first blocking sheet driving cylinder 107 is fixed on the mounting plate 114 . On the plate 114 , the movable part of the conveying pipe lifting element 111 is fixed with the mounting plate 114 .

In this embodiment, the end of the second blocking piece 108 has a sharp corner. The sharp corners are provided to facilitate the insertion of the second blocking piece 108 between the two lowermost magnetic bars 105 .

As shown in Figures 21, 23 and 27, the syringe cleaning mechanism 81 of this embodiment includes:

The circulation box 115, the upper end is open, is fixed on the rack 1;

The filter layer 116 is fixed in the middle area of the circulation box 115, and divides the circulation box 115 into an upper layer 117 and a lower layer 118;

One end of the water outlet pipe 133 is communicated with the lower layer 118, and the other end is located above the circulation box 115 and the water outlet direction is inclined downward;

The water pump 119 is installed on the water outlet pipe 133 and is used to transport the water of the lower layer 118 to the upper layer 117 .

When in use, the syringe assembly is moved to the top of the circulation box 115, and the needle of the syringe assembly 27 is located on the water outlet path of the water outlet pipe 133. At this time, after the syringe assembly 27 is pulled, it can inhale clean water from the lower layer 118, and the syringe assembly 27 is compressed, Water is sprayed to the upper layer 117, at which point a wash is completed.

The syringe cleaning mechanism 81 of the present application can circulate water through the filter layer 116, thereby effectively saving water resources. In practical application, the filter layer 116 can adopt the existing structure of the filter layer 116 .

As shown in Figures 23 and 27, in this embodiment, a detection sensor 120 is installed at the end of the water outlet pipe 133 above the circulation box 115, and the detection sensor 120 is used to detect the needle of the syringe assembly. The detection sensor 120 is located on the upper side of the end of the water outlet pipe 133 , and the detection sensor 120 is electrically connected to the controller of the water pump 119 . The detection sensor 120 is located on the upper side of the end of the water outlet pipe 133 so that the detection sensor 120 is not easily splashed with water, and the water pump 119 can be operated after the syringe assembly is moved to the position by the detection sensor 120 .

In actual use, the water supply pipe is also included, and the water supply pipe is communicated with the lower layer 118 .

Example 5

This embodiment discloses a test tube cleaning mechanism 121, which can be used in Embodiments 1, 2, 3 or 4, that is, the test tube cleaning mechanism 121 in this embodiment can replace the storage rack in Embodiment 1, as shown in FIGS. 28 and 29 . As shown, the test tube cleaning mechanism 121 in this embodiment includes:

The storage rack is rotatably installed on the rack 1, the upper end surface of the storage rack has a plurality of fixing grooves 122, the storage rack has an initial working position and a cleaning working position, and the cleaning working position is rotated 180° relative to the initial working position;

The test tube self-clamping sleeve 45 is fixedly installed in the fixing groove 122;

a rotary drive member 123 for driving the storage rack to rotate;

The cleaning rack 124 is located below the storage rack, and a plurality of water spray heads 125 are installed on the cleaning rack 124;

The first reciprocating element 126 is used to drive the cleaning rack 124 to reciprocate, so that water is sprayed to the test tube fixed on the test tube self-clamping sleeve 45;

an air-drying rack 127, located below the storage rack, and a plurality of blowing heads 128 are installed on the air-drying rack 127;

The second reciprocating element 129 is used to drive the air drying rack 127 to reciprocate, so that the air is sprayed to the test tube fixed on the test tube self-clamping sleeve 45;

The waste liquid box 130, located below the storage rack, is used for receiving waste water.

The test tube cleaning mechanism 121 of the present application can automatically clean the test tube. When in use, the test tube is fixed on the test tube self-clamping sleeve 45, and the storage rack is rotated 180° by the rotary drive member 123, and is switched from the initial working position to the cleaning working position. At this time, the opening of the test tube is downward, and then the first reciprocating element 126 and the water spray head 125 work, water is sprayed in the test tube, the test tube is cleaned, and the waste water falls into the waste liquid box 130. After the cleaning is completed, the second reciprocating element 129 and The blowing head 128 works to dry the test tube, and after the drying is completed, the storage rack is rotated and reset.

As shown in FIG. 28 , in this embodiment, the rack 1 has an escape opening 131 , and the storage rack is arranged at the escape opening 131 .

In actual use, the rotary drive member 123 is a rotary cylinder or a motor.

As shown in FIG. 29 , the test tube cleaning mechanism 121 further includes an annular or rectangular enclosure 132 fixed to the rack 1 , the lower end of the storage rack is located in the enclosure 132 , and the cleaning rack 124 and the drying rack are located below the enclosure 132 . The provision of the enclosure 132 can prevent water from splashing around.

In practice, the first reciprocating element 126 is an air cylinder or an electric push rod; the second reciprocating element 129 is an air cylinder or an electric push rod.

The test tube mentioned in this embodiment refers to the test tube with the cover removed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of patent protection of the present invention. Any equivalent structural transformation made by using the contents of the description and accompanying drawings of the present invention can be directly or indirectly used in other related technical fields. All are similarly included in the protection scope of the present invention.

Claims (10)

1. a test tube cleaning mechanism of water quality testing equipment, the water quality testing equipment comprises a rack, it is characterized in that, described test tube cleaning mechanism comprises: The storage rack is rotatably mounted on the rack, the upper end surface of the storage rack has a plurality of fixing grooves, the storage rack has an initial working position and a cleaning working position, and the cleaning working position is rotated 180° relative to the initial working position; The test tube self-clamping sleeve is fixedly installed in the fixed groove; a rotary drive member for driving the storage rack to rotate; The cleaning rack is located below the storage rack, and a plurality of water spray heads are installed on the cleaning rack; The first reciprocating element is used to drive the cleaning rack to reciprocate, so that water is sprayed to the test tube fixed on the self-clamping sleeve of the test tube; an air drying rack, located under the storage rack, and a plurality of hair dryers are installed on the air drying rack; The second reciprocating element is used to drive the air drying rack to reciprocate, so that the air is sprayed to the test tube fixed on the self-clamping sleeve of the test tube; Waste box, located under the storage rack, to receive waste water. 2 . The test tube cleaning mechanism of water quality testing equipment according to claim 1 , wherein the rack has an escape opening, and the storage rack is arranged at the escape opening. 3 . 3 . The test tube cleaning mechanism of water quality testing equipment according to claim 1 , wherein the rotary driving member is a rotary cylinder or a motor. 4 . 4. The test tube cleaning mechanism of water quality testing equipment according to claim 1, characterized in that, the test tube cleaning mechanism further comprises an annular or rectangular enclosure fixed to the rack, and the lower end of the storage rack is located in the enclosure, so The cleaning rack and the drying rack are located below the enclosure. 5 . The test tube cleaning mechanism of water quality testing equipment according to claim 1 , wherein the first reciprocating element is an air cylinder or an electric push rod; the second reciprocating element is an air cylinder or an electric push rod. 6 . 6 . The test tube cleaning mechanism of water quality testing equipment according to claim 1 , wherein the test tube self-clamping sleeve comprises a body into which the test tube body is inserted, and a clamping elastic sheet is installed in the body, and the clamp The tight elastic piece includes an arc-shaped portion protruding toward one side of the axis of the body; The body includes an inner sleeve body and an outer sleeve, the inner sleeve body has a through hole, the clamping elastic piece further includes a limit portion, the limit portion is arranged at at least one end of the arc portion, and the outer sleeve The outer sleeve is on and fixed with the inner sleeve body, the limiting portion of the clamping elastic sheet is located between the inner sleeve body and the outer sleeve body, and the arc portion of the clamping elastic sheet passes through the through hole. 7 . A water quality testing device, characterized in that it comprises the test tube cleaning mechanism according to any one of claims 1 to 6 . 8 . 8. The water quality testing device of claim 7, further comprising a mobile grabbing mechanism, the mobile grabbing mechanism comprising: a mobile unit; Mounting frame, mounted on the mobile unit; a first lifting element, mounted on the mounting frame, the first lifting element comprising a first driving member capable of lifting; a first clamping element, which is relatively fixed with the first driving member, and the first clamping element is used for clamping objects; a second lifting element, mounted on the mounting frame, the second lifting element includes a second driving member capable of lifting; A syringe assembly is mounted on the mounting bracket, the syringe assembly is capable of drawing and releasing liquids. 9. The water quality testing device according to claim 8, wherein the moving unit is a manipulator. 10. The water quality testing device according to claim 8, wherein the moving unit comprises a first linear module, a second linear module and a third linear module, and the second linear module is installed on the On the movable part of the first linear module, the third linear module is mounted on the movable part of the second linear module, and the first linear module is used to drive the second linear module Move along the X-axis direction, the second linear module is used to drive the third linear module to move along the Y-axis direction, the movable part of the third linear module can move along the Z-axis direction, and the Z-axis direction is: In the vertical direction, the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other; the mounting frame is fixed to the movable part of the third linear module.

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