CN111735979A - Sample cup conveying mechanism of water quality detection device and water quality detection device - Google Patents

Abstract

The application discloses a sample cup conveying mechanism of water quality detection equipment and the water quality detection equipment, wherein the sample cup conveying mechanism comprises a cup pushing element, an input assembly and an output assembly; the input assembly and the output assembly each include: a shelf; the two rollers are rotatably arranged on the frame; the conveying belt is wound on the two rollers, and a plurality of accommodating grooves are formed in the outer surface of the conveying belt; the conveying belt driving motor is used for driving one of the rollers to rotate; the cup pushing element is used for pushing the sample cup of the input assembly into the sampling position and pushing the sample cup of the sampling position into the accommodating groove of the output assembly. The sample cup conveying mechanism can automatically convey and remove sample cups, and can effectively reduce labor capacity compared with manual operation.

Description

Sample cup conveying mechanism of water quality detection device and water quality detection device

Technical Field

The invention relates to the field of water quality detection, in particular to a sample cup conveying mechanism of water quality detection equipment and the water quality detection equipment.

Background

Places such as municipal sewage plants need the laboratory technician to carry out the detection to sewage business turn over water sample daily, for example carry out the detection of indexes such as COD, BOD, total nitrogen, total phosphorus. The sample is generally placed in the sample cup, and during each detection, the sample cup needs to be manually placed in a working position, then the detection equipment sucks the sample through an automatic structure and performs related detection operations, and after the sample in the sample cup is extracted, the sample cup needs to be manually removed, and then the sample cup is placed in a new sample cup which is not detected. The operation is carried out manually, so that the workload is large and the efficiency is lower.

Disclosure of Invention

The invention provides a sample cup conveying mechanism of water quality detection equipment and the water quality detection equipment aiming at the problems.

The technical scheme adopted by the invention is as follows:

a sample cup conveying mechanism of water quality detection equipment comprises a rack, wherein a sampling position for placing a sample cup is arranged on the rack, the sample cup conveying mechanism comprises a cup pushing element, an input assembly and an output assembly, the input assembly and the output assembly are respectively arranged on two sides of the sampling position, and the cup pushing element is positioned on one side, away from the output assembly, of the input assembly;

the input assembly and the output assembly each include:

a shelf;

the two rollers are rotatably arranged on the frame;

the conveying belt is wound on the two rollers, and a plurality of accommodating grooves are formed in the outer surface of the conveying belt and used for accommodating sample cups;

the conveying belt driving motor is used for driving one of the rollers to rotate;

the cup pushing element is used for pushing the sample cup of the input assembly into the sampling position and pushing the sample cup of the sampling position into the accommodating groove of the output assembly.

Can place a plurality of sample cups simultaneously through the input subassembly, can push the sample cup that the input subassembly is close to the appearance grade through pushing away the cup component and push sample position, after the sample cup of sample position is sampled, push away cup component further work, push away the holding tank of output assembly with the sample cup of sample position. The sample cup conveying mechanism can automatically convey and remove sample cups, and can effectively reduce labor capacity compared with manual operation.

In one embodiment of the present invention, the frame has notches on both sides of the sampling position, and the end of the conveyor belt of the input assembly and the end of the conveyor belt of the output assembly are located at the corresponding notches, respectively.

In one embodiment of the present invention, the sample cup is a circular cup, one end of the accommodating groove extends to the edge of the conveying belt, the accommodating groove includes two parallel straight side walls and an arc-shaped side wall connecting the two straight side walls, the lower end of the sample cup is placed in the accommodating groove, and the outer side wall of the sample cup abuts against the arc-shaped side wall.

The holding tank sets up like this and conveniently fixes a position the sample cup, and makes things convenient for shifting out or moving in of sample cup.

In one embodiment of the invention, the sample cup conveying mechanism further comprises an arc-shaped limiting block which is slidably arranged on the frame and a limiting block driving cylinder which drives the arc-shaped limiting block to move up and down, the arc-shaped limiting block is positioned at the sampling position and used for limiting the position of the sample cup after the arc-shaped limiting block moves up, so that the cup pushing element can accurately push the sample cup of the input assembly into the sampling position.

In one embodiment of the present invention, the sample cup has an annular mounting groove, an annular iron sheet is mounted on the annular mounting groove, and a magnet is mounted in the circular arc sidewall.

Through the cooperation of magnet and annular iron sheet, can form magnetic attraction, make the better location of sample cup in the holding tank.

In order to prevent the annular iron piece from interfering with the magnetic rod, it is preferable that the distance between the annular iron piece and the bottom wall of the sample cup is 5mm or more.

In one embodiment of the present invention, the input assembly further includes a positioning rotating member, and the positioning rotating member is engaged with the rack for adjusting an angle of the rack; the position-adjusting rotating piece is a motor or a rotating cylinder.

During the practical application, under the initial condition, put into the sample cup in the holding tank of input subassembly, the lateral wall that can not guarantee all sample cups this moment supports with the arc lateral wall and leans on, before the conveyer belt removes, rotates through positioning rotating member control shelf, makes sample cup to arc lateral wall one side slope, under the dual function of gravity and magnetic force, the sample cup can remove, until paste with the arc lateral wall and lean on.

In one embodiment of the present invention, the cup pushing element is a cylinder or an electric push rod.

In one embodiment of the present invention, an arc-shaped push plate is fixed on the movable member of the cup pushing element, and a flexible pad is disposed on a surface of the arc-shaped push plate, which is matched with the sample cup.

The arc push pedal is convenient with the cooperation of sample cup, sets up the flexible pad and can protect the sample cup.

The application also discloses a water quality testing equipment, includes the above sample cup conveying mechanism.

In one embodiment of the present invention, the apparatus further comprises a movable grasping mechanism, the movable grasping mechanism is capable of extracting the liquid in the sample cup of the sampling site, and the movable grasping mechanism comprises:

a mobile unit;

a mounting bracket mounted on the moving unit;

the first lifting element is arranged on the mounting frame and comprises a first driving piece capable of lifting;

a first gripping element fixed relative to the first drive member, the first gripping element for gripping an item;

the second lifting element is arranged on the mounting frame and comprises a second driving piece capable of lifting;

a syringe assembly mounted on the mounting frame, the syringe assembly capable of withdrawing and releasing a liquid.

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

In one embodiment of the present invention, the moving unit includes a first linear module, a second linear module and a third linear module, the second linear module is installed on a moving part of the first linear module, the third linear module is installed on a moving part of the second linear module, the first linear module is used for driving the second linear module to move along an X-axis direction, the second linear module is used for driving the third linear module to move along a Y-axis direction, the moving part of the third linear module can move along a Z-axis direction, the Z-axis direction is a vertical direction, and the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other two by two; the mounting bracket is fixed with the moving part of the third linear module.

The invention has the beneficial effects that: can place a plurality of sample cups simultaneously through the input subassembly, can push the sample cup that the input subassembly is close to the appearance grade through pushing away the cup component and push sample position, after the sample cup of sample position is sampled, push away cup component further work, push away the holding tank of output assembly with the sample cup of sample position. The sample cup conveying mechanism can automatically convey and remove sample cups, and can effectively reduce labor capacity compared with manual operation.

Description of the drawings:

FIG. 1 is a schematic view of a water quality measuring apparatus according to example 1;

FIG. 2 is a schematic view of a water quality detecting device after the structure of a hidden part is hidden;

FIG. 3 is a schematic structural view of the mobile gripping mechanism;

FIG. 4 is a schematic view of another angle of the moving gripper mechanism;

FIG. 5 is a schematic view of the test tube self-clamping sheath of example 1;

FIG. 6 is a sectional view of the self-clamping sheath of the test tube of example 1;

FIG. 7 is an exploded view of the self-clamping sheath of the test tube of example 1;

FIG. 8 is a schematic view of a shake-up mechanism;

FIG. 9 is a schematic view of a mechanism for inverting waste liquid;

FIG. 10 is a schematic view of a waste pouring mechanism with a drainage funnel;

FIG. 11 is a schematic view of a switch cover mechanism;

FIG. 12 is a schematic view of the internal structure of a water quality detecting section;

FIG. 13 is a schematic view of a dosing mechanism;

FIG. 14 is a schematic view of a purge tank;

FIG. 15 is a schematic view of a cuvette clamping member;

FIG. 16 is a schematic view of the cuvette after it has been gripped by the cuvette gripping member;

FIG. 17 is a schematic view of a shaking heating mechanism of example 2;

FIG. 18 is a schematic view of the test tube self-clamping sheath of example 2;

FIG. 19 is an exploded view of the cuvette assembly according to example 3;

FIG. 20 is a sectional view of the test tube assembly of example 3;

FIG. 21 is a schematic view of a water quality measuring apparatus according to example 4

FIG. 22 is a schematic view of the stirring mechanism and sample cup with the magnetic stirrer omitted

FIG. 23 is a schematic view of the sample cup delivery mechanism, agitation mechanism, and syringe cleaning mechanism on a rack;

FIG. 24 is a schematic view of another angle of the sample cup transport mechanism, agitation mechanism, and syringe cleaning mechanism on the rack

FIG. 25 is a schematic view of the stirring mechanism after omitting the magnetic stirrer

FIG. 26 is a cross-sectional view of the stirring mechanism with the magnetic stirrer omitted;

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

FIG. 28 is a schematic view of the test tube washing mechanism of example 5;

FIG. 29 is a schematic view of the test tube washing mechanism of example 5 from another angle.

The figures are numbered:

1. a frame; 2. a storage rack; 3. moving the grabbing mechanism; 4. a lid opening and closing mechanism; 5. a dosing mechanism; 6. a shaking-up mechanism; 7. a digestion instrument; 8. a detector; 9. a mobile unit; 10. a grasping assembly; 11. a mounting frame; 12. a first lifting element; 14. a first clamping element; 16. a movable rod; 17. mounting blocks; 18. an L-shaped plate; 19. a first guide rail; 20. a vertical portion; 21. a horizontal portion; 22. a first linear module; 23. a second linear module; 24. a third linear module; 25. a second lifting element; 26. a second driving member; 27. a syringe assembly; 28. an installation part; 29. a servo motor; 30. a clamping cylinder; 31. a support; 32. an inductive proximity sensor; 33. a medicament bottle; 34. a medicine discharging frame; 35. mounting holes; 36. a peristaltic pump; 37. a dressing change drive assembly; 38. a driving wheel; 39. a driven wheel; 40. a transmission belt; 41. a moving block; 42. switching the motors; 43. a first rotating member; 44. a second rotating element; 45. the test tube self-clamping sleeve; 46. a test tube body; 47. a body; 48. clamping the elastic sheet; 49. an arc-shaped portion; 50. an inner sleeve body; 51. an outer casing; 52. a through hole; 53. a limiting part; 54. a limiting groove; 55. a limiting step; 56. a waste liquid pouring mechanism; 57. rotating the liquid pouring element; 58. a second clamping element; 59. a draining rack; 60. a drain hole; 61. a switching element; 62. a waste liquid tank; 63. a liquid discharge funnel; 64. a rotation conversion bit element; 65. a cuvette clamping element; 66. a cuvette; 67. a cleaning tank; 68. a cleaning tank; 69. cleaning the spray head; 70. a heating element; 71. a test tube cover; 72. an insertion portion; 73. an outer race section; 74. an annular groove; 75. a first tapered guide surface; 76. a second tapered guide surface; 77. a clamping portion; 78. a track; 79. a sample cup conveying mechanism; 80. a stirring mechanism; 81. an injector cleaning mechanism; 82. a sample cup; 83. sampling bits; 84. an input component; 85. an output component; 86. a cup pushing element; 87. a shelf; 88. a roller; 89. a conveyor belt; 90. accommodating grooves; 91. a conveyor belt driving motor; 92. a recess; 93. a flat side wall; 94. a circular arc-shaped side wall; 95. an arc-shaped limiting block; 96. the limiting block drives the air cylinder; 97. an annular iron sheet; 98. positioning the rotating member; 99. an arc-shaped push plate; 100. a magnetic stirrer; 101. a delivery pipe; 102. a material storage part; 103. a conveying section; 104. a strip-shaped opening; 105. a magnetic rod; 106. a first barrier sheet; 107. the first blocking piece drives the air cylinder; 108. a second barrier sheet; 109. the second barrier plate drives the cylinder; 110. a second barrier sheet lifting cylinder; 111. a delivery tube elevating element; 112. a distance sensor; 113. a conveying pipe rotating element; 114. mounting a plate; 115. a circulation box; 116. a filter layer; 117. an upper layer; 118. a lower layer; 119. a water pump; 120. a detection sensor; 121. a test tube cleaning mechanism; 122. fixing grooves; 123. a rotary drive member; 124. a cleaning frame; 125. a sprinkler head; 126. a first reciprocating element; 127. an air drying rack; 128. a blowing head; 129. a second reciprocating element; 130. a waste liquid box; 131. avoiding the mouth; 132. fencing; 133. and (5) discharging a water pipe.

The specific implementation mode is as follows:

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

Example 1

As shown in fig. 1 to 13, a water quality detection device, which can automatically detect water quality, comprises a frame 1, wherein the frame 1 is provided with a water inlet;

a storage rack 2 for holding test tubes and cuvettes 66;

the movable grabbing mechanism 3 is used for grabbing articles and extracting samples;

an opening and closing cover mechanism 4 for opening or closing the test tube cover 71 of the test tube;

the medicine adding mechanism 5 is used for adding medicines into the test tube body 46;

a shaking mechanism 6 for fully mixing the sample and the medicament;

the digestion instrument 7 is used for heating and digesting the evenly shaken liquid;

and the detector 8 is used for detecting the liquid in the color dish 66.

As shown in fig. 2, 3 and 4, in the present embodiment, the moving gripper mechanism 3 includes:

a mobile unit 9;

a mounting frame 11 mounted on the moving unit 9;

the first lifting element 12 is installed on the mounting frame 11, and the first lifting element 12 comprises a first driving piece capable of lifting;

a first gripping element 14 fixed relative to the first drive member, the first gripping element 14 for gripping an item;

a second lifting member 25 mounted on the mounting frame 11, the second lifting member 25 including a second driving member 26 capable of lifting;

and a syringe assembly 27 mounted on the mounting frame 11, the syringe assembly 27 being capable of withdrawing and releasing liquid.

The mounting frame 11 is provided with a first lifting element 12 and a second lifting element 25, the first lifting element 12 can control the first clamping element 14 to lift, the second lifting element 25 can control the syringe assembly 27 to lift, and only one moving unit 9 is needed to realize the operation of grabbing articles and extracting samples, so that the whole structure is more compact.

In practice, the syringe assembly 27 may be an existing power syringe. Syringe assembly 27 includes a barrel, a needle attached to the lower end of the barrel, a piston slidably disposed within the barrel, and a motor mechanism for driving the piston in a reciprocating motion.

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

In this embodiment, a gravity sensor (not shown) is mounted on the first driving member, and the upper end of the first clamping element 14 is fixed to the gravity sensor. During actual application, the movable grabbing mechanism 3 further comprises a controller and an alarm unit, and the controller is electrically connected with the gravity sensor and the alarm unit. The alarm unit may include a horn, an alarm lamp, and the like.

The gravity sensor can feed back force signals, so that the equipment runs more reliably. The first clamping member 14 has corresponding weight data each time it grips an article such as a test tube, cuvette 66, etc., and feeds back to the controller to be able to determine whether the gripping was successful. If a large error occurs in the weight after the gripping, or a large force is suddenly transmitted from the gravity sensor during the normal operation (for example, the first clamping element 14 collides with an object), the controller can judge that an abnormality occurs and control the alarm unit to operate.

In actual use, the moving unit 9 is a robot. In this embodiment, the moving unit 9 includes a first linear module 22, a second linear module 23, and a third linear module 24, the second linear module 23 is installed on a moving part of the first linear module 22, the third linear module 24 is installed on a moving 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 to drive the third linear module 24 to move along the Y-axis direction, the moving part of the third linear module 24 can move along the Z-axis direction, the Z-axis direction is a vertical direction, and the X-axis direction, the Y-axis direction, and the Z-axis direction are mutually perpendicular; the mounting frame 11 is fixed with the movable member of the third linear module 24.

In practical application, the linear module can be a ball screw pair, a rack and a gear and other existing structures.

In the present embodiment, the first lifting member 12 and the second lifting member 25 are both telescopic cylinders.

In the present embodiment, the first clamping element 14 is a jaw cylinder. The clamping jaw cylinder is also called a pneumatic finger, a pneumatic clamping jaw or a pneumatic clamping finger.

In practice, the first driving member may be a movable rod 16, the movable rod 16 has a mounting block 17 at an end thereof, and the gravity sensor is mounted on the mounting block 17. In this embodiment, the side wall of the first lifting member 12 has a first guide rail 19, the first driving member includes a movable rod 16 and an L-shaped plate 18, a vertical portion 20 of the L-shaped plate 18 is slidably fitted with the first guide rail 19, a horizontal portion 21 of the L-shaped plate 18 is fixed to the movable rod 16, and the gravity sensor is mounted on the horizontal portion 21. Through the cooperation of the first guide rail 19 and the vertical part 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 a gripping assembly 10 for gripping an article.

As shown in fig. 6, the test tube of the present embodiment includes a test tube body 47 and a test tube cover 71, and the test tube body 47 is screwed to the test tube cover 71. As shown in fig. 11 and 12, in the present embodiment, the opening and closing cover mechanism 4 includes:

a mobile unit 9;

the grabbing component 10 is arranged on the moving unit 9 and can clamp the articles and drive the articles to move up and down;

a servo motor 29;

and a clamping cylinder 30 mounted on the rotating shaft of the servo motor 29 for clamping the test tube body 46.

The lid opening and closing mechanism 4 can automatically open the test tube lid 71 or tighten the test tube lid 71. When the test tube cover needs to be opened, the clamping cylinder 30 clamps the test tube body 46, the grabbing assembly 10 clamps the test tube cover 71, the servo motor 29 rotates, and meanwhile the grabbing assembly 10 drives the test tube cover 71 to move upwards; when the test tube cover 71 needs to be screwed tightly, the clamping cylinder 30 clamps the test tube body 46, the grabbing assembly 10 clamps the test tube cover 71, the servo motor 29 rotates reversely, and meanwhile the grabbing assembly 10 drives the test tube cover 71 to move downwards.

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

In practical use, preferably, in order to avoid the problems that the test tube is damaged when the force is large and the test tube cannot be tightened when the force is small, the servo motor 29 works in a torque control mode, the motor outputs constant rotating force, and when the test tube cover 71 is tightened, the torque is larger than the output force of the motor, and the motor stops moving.

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

In actual use, the air pipe of the clamp cylinder 30 is provided with a pressure regulating valve. The pressure can be adjusted to be smaller through the pressure adjusting valve, so that the action of opening or closing the cover is realized in a matched manner.

As shown in fig. 2, 12 and 13, in the present embodiment, the medicine adding mechanism 5 includes:

a multiple medicine bottle 33;

a medicine outlet frame 34 having a plurality of mounting holes 35 arranged at intervals;

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

a plurality of peristaltic pumps 36 mounted on the respective drug tubes;

and the medicine changing driving assembly 37 is used for driving the medicine discharging rack 34 to move or rotate.

Through setting up output medicament that peristaltic pump 36 can be accurate reliable, can drive out the activity of medicine frame 34 through drive assembly 37 that changes dressings to can switch different medicaments as required and drip into test tube body 46.

The peristaltic pump 36 is installed on the corresponding medicine tube, which means that a certain position in the middle of the medicine tube is disconnected, and two ends of the disconnected position are respectively connected with two liquid passing holes of the peristaltic pump 36.

In actual use, the outlet end of the cartridge has an injection nozzle which is fixed to the mounting hole 35.

As shown in fig. 13, in the present embodiment, the medicine changing driving assembly 37 is configured to drive the medicine discharging rack 34 to move linearly, the medicine 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 configured to drive the driving wheel 38 to rotate, and the medicine discharging rack 34 is mounted on the moving block 41.

As shown in fig. 12, in the present embodiment, the dressing change driving assembly 37 further includes a track 78, and the moving block 41 is slidably disposed on the track 78. The provision of the track 78 enables the moving block 41 to reliably and stably move.

During the actual use, add medicine mechanism 5 and can also include the baffle drive element of baffle and drive baffle translation, and baffle drive element can be components such as cylinder, and after adding medicine, baffle drive element drive baffle removes to the below of going out medicine frame 34, prevents that the medicament from dropping down, pollution equipment.

As shown in fig. 8, in the present embodiment, the shaking mechanism 6 includes:

a first rotating member 43;

a second rotating member 44 fixed to the rotating shaft of the first rotating member 43, the rotating shaft axis of the second rotating member 44 being perpendicular to the rotating shaft axis of the first rotating member 43;

and a test tube clamp fixed to the rotational shaft of the second rotating member 44 for automatically clamping the test tube body 46.

Through first rotating element 43 and second rotating element 44, can drive test tube clamping piece at a plurality of dimensions motion, can realize better even operation of shaking.

In actual use, the first rotating element 43 is a rotating cylinder or a motor; the second rotating member 44 is a rotary cylinder or a motor.

In the present embodiment, the rotation axis of the first rotating element 43 is horizontally disposed.

In practice, the first rotating element 43 may perform a reciprocating swinging motion, and the second rotating element 44 may rotate in one direction or rotate in a reciprocating manner.

As shown in fig. 5, 6 and 7, in this embodiment, the test tube clamping member is a test tube self-clamping sleeve 45, the test tube self-clamping sleeve 45 includes a body 47 for inserting the test tube body 46, a clamping elastic sheet 48 is installed in the body 47, and the clamping elastic sheet 48 includes an arc portion 49 protruding to one side of the axis of the body 47.

When test tube body 46 inserted body 47, can compress arc portion 49, the arc portion 49 after being extrusion deformation can apply the effort to test tube body 46's lateral wall to can prevent that test tube body 46 from breaking away from body 47, the test tube of this application can realize from the clamping function to test tube body 46 from pressing from both sides tight cover 45.

As shown in fig. 6 and 7, in the embodiment, the body 47 includes an inner sleeve 50 and an outer sleeve 51, the inner sleeve 50 has a through hole 52, the clamping spring 48 further includes a limiting portion 53, the limiting portion 53 is disposed at least one end of the arc portion 49, the outer sleeve 51 is sleeved on the inner sleeve 50 and fixed with the inner sleeve 50, the limiting portion 53 of the clamping spring 48 is located between the inner sleeve 50 and the outer sleeve 51, and the arc portion 49 of the clamping spring 48 passes through the through hole 52. The design of the inner and outer sleeves 50, 51 makes it easier to mount the clamping spring 48.

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

As shown in fig. 7, in the present embodiment, the outer sidewall of the inner housing 50 further has a limiting groove 54 at two sides of the through hole 52, and two ends of the clamping spring 48 are respectively disposed in the corresponding limiting grooves 54. The two ends of the clamping spring plate 48 are respectively arranged in the corresponding limiting grooves 54, which means that the limiting parts 53 are matched with the limiting grooves 54, and the design not only facilitates the installation of the clamping spring plate 48, but also can reliably limit the clamping spring plate 48.

In actual use, the inner sleeve 50 and the outer sleeve 51 are welded, screwed, snapped or connected by fasteners.

As shown in fig. 6 and 7, in the present embodiment, the lower portion of the inner sheath 50 has a limit step 55, and the lower end of the outer sheath 51 abuts against the limit step 55.

As shown in fig. 5 and 7, in the present embodiment, there are a plurality of clamping resilient pieces 48, which are uniformly arranged around the axis of the body 47.

As shown in fig. 12, the water quality detecting apparatus further includes a waste liquid pouring mechanism 56. As shown in fig. 9 and 10, the waste liquid pouring mechanism 56 includes:

the rotating pouring element 57;

a second gripping member 58 mounted on the rotation shaft of the rotary pouring member 57 for gripping the container;

a drain rack 59 having a plurality of drain holes 60, each drain hole 60 being used for connecting a different drain pipe (not shown in the drawings);

and the switching element 61 is used for driving the drainage rack 59 to move or rotate, so that one of the drainage holes 60 receives the waste liquid.

The second clamping element 58 is used for clamping the container with the waste liquid, the container can be inclined by rotating the liquid pouring element 57, the waste liquid can fall into the liquid discharging holes 60 on the liquid discharging rack 59, the position of each liquid discharging hole 60 can be adjusted by the switching element 61, so that different liquid discharging holes 60 receive the waste liquid, and the separated discharge or separated recovery can be realized according to different waste liquids.

The container of the present application refers to a tube body 46, a cuvette 66, and the like for containing a liquid.

In practical application, the rotating liquid pouring element 57 is a rotating cylinder or a motor, and a rotating shaft of the rotating liquid pouring element 57 is horizontally arranged.

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

In practical use, the switching element 61 is a rotary cylinder or a motor, and the switching element 61 is used for driving the drainage rack 59 to rotate.

In the present embodiment, the switching element 61 is a telescopic cylinder or an electric push rod, and the switching element 61 is used for driving the drainage rack 59 to move.

As shown in fig. 2 and 12, in the present embodiment, the waste liquid pouring mechanism 56 further includes a waste liquid tank 62, and one end of the liquid discharge pipe away from the liquid discharge rack 59 is communicated with the corresponding waste liquid tank 62.

In actual use, the waste liquid pouring mechanism 56 may further include a PH sensor and a sensor expansion member for driving the PH sensor to move up and down. The PH sensor can detect the acid-base degree of the waste liquid, so that the liquid discharge hole 60 to which the liquid is discharged is determined, and the acid liquid and the alkali liquid can be discharged or recovered respectively.

In the present embodiment, there are 2 drain holes 60.

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

In this embodiment, the water quality detecting apparatus further includes a cuvette washing mechanism, as shown in fig. 14, 15 and 16, the cuvette washing mechanism includes:

a rotary shift element 64;

the cuvette 66 clamping element 65 is arranged on the rotating shaft of the rotary conversion position element 64 and used for clamping the cuvette 66, and when the cuvette 66 is clamped by the cuvette 66 clamping element 65, the upper end and the lower end of the cuvette 66 are exposed out of the cuvette 66 clamping element 65;

a cleaning tank 67 having a plurality of cleaning tanks 68, the cuvette 66 being placed upside down in the cleaning tanks 68;

and a cleaning spray head 69 installed at the bottom of the cleaning bath 68 for spraying a cleaning liquid toward the cuvette 66.

Through the cooperation of rotating bit component 64 and cell 66 clamping component 65, can press from both sides tight cell 66 and make the cell 66 switching-over, make the open end of cell 66 down to make things convenient for outside structure of grabbing to snatch cell 66 to the washing tank 68 of cleaning box 67 in, then spray the contrast cell 66 of washing liquid through washing shower nozzle 69 and wash.

The cleaning liquid of the present application may be water or the like that can be used to clean the cuvette 66.

In the present embodiment, the rotary position-changing element 64 is a rotary cylinder or a motor, and the rotating shaft of the rotary position-changing element 64 is disposed horizontally.

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

In practical use, preferably, the cuvette washing mechanism further includes a cover plate rotatably installed at the open end of the washing tank 67 and a cover plate driving member for driving the cover plate to be turned over. The cover plate is arranged to effectively prevent the cleaning liquid from being sputtered out.

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

The water quality testing equipment of this embodiment can divide into the detection step and uncap, take water sample, close little steps such as lid, mixing, clear up, add reagent, washing, color comparison, and operating personnel can detect the difference of index according to oneself, and the complete detection step of arbitrary sequencing combination to reach actual detection's purpose.

Example 2

As shown in fig. 17 and 18, this embodiment is different from embodiment 1 in that the digestion apparatus 7 is eliminated, and a heating element 70 is added to the shaking-up mechanism 6 of embodiment 1 to form a shaking-up heating mechanism. As shown in fig. 17 and 18, the shaking heating mechanism includes:

a first rotating member 43;

a second rotating member 44 fixed to the rotating shaft of the first rotating member 43, the rotating shaft axis of the second rotating member 44 being perpendicular to the rotating shaft axis of the first rotating member 43;

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

Through first rotating element 43 and second rotating element 44, can drive the test tube from the clamping sleeve 45 at a plurality of dimension motion, can realize better shake even operation. And after shaking is completed, the heating operation can be directly performed by the heating element 70 without removing the test tube body 46.

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

In this embodiment, the test tube self-clamping sheath 45 includes a body 47 for inserting the test tube body 46, a clamping spring 48 is mounted on the upper portion of the body 47, a heating element 70 is mounted on the lower portion of the body 47, and the clamping spring 48 includes an arc portion 49 protruding toward one side of the axis of the body 47. When test tube body 46 inserted body 47, can compress arc portion 49, the arc portion 49 after being extrusion deformation can apply the effort to test tube body 46's lateral wall to can prevent that test tube body 46 from breaking away from body 47, the test tube of this application can realize from the clamping function to test tube body 46 from pressing from both sides tight cover 45.

In this embodiment, the body 47 includes an inner sleeve 50 and an outer sleeve 51, the inner sleeve 50 has a through hole 52, the clamping spring 48 further includes a limiting portion 53, the limiting portion 53 is disposed at least at one end of the arc portion 49, the outer sleeve 51 is sleeved on the inner sleeve 50 and fixed with the inner sleeve 50, the limiting portion 53 of the clamping spring 48 is located between the inner sleeve 50 and the outer sleeve 51, and the arc portion 49 of the clamping spring 48 passes through the through hole 52; the heating element 70 is a heating plate which is sleeved on the lower part of the inner sleeve 50 and is positioned between the outer sleeve 51 and the inner sleeve 50. The design of the inner and outer jackets 50, 51 facilitates the mounting of the clamping spring 48 and the heating element 70.

In the present embodiment, the through hole 52 is a strip-shaped hole, and the length direction of the through hole 52 is parallel to the axial direction of the inner sleeve 50; the inner sleeve body 50 and the outer sleeve body 51 are welded, clamped or connected through a fastener; the first rotating element 43 is a rotating cylinder or a motor; the second rotating member 44 is a rotary cylinder or a motor.

In the present embodiment, the rotation axis of the first rotating element 43 is horizontally disposed.

Example 3

The present embodiment differs from embodiment 1 or 2 in that the test tube and the cap opening and closing mechanism 4, as shown in fig. 19 and 20, the test tube assembly of the present embodiment includes a test tube body 46 and a test tube cap 71, the test tube cap 71 is fitted over the test tube body 46, the test tube cap 71 includes an inner insertion portion 72 and an outer sleeve portion 73 coaxially disposed, an annular groove 74 is formed between the inner insertion portion 72 and the outer sleeve portion 73, and the annular groove 74 is used for being clamped at the open end of the test tube body 46; the inner insert part 72 is a cylindrical structure, and the end part of the inner insert part 72 is provided with a first conical guide surface 75; the test tube cover 71 is made of flexible material, the inner insertion portion 72 of the test tube cover 71 is in sealing fit with the inner side wall of the test tube body 46, 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 subassembly of this application can realize double containment, and interpolation portion 72 is sealed with the inside wall of test tube body 46 promptly, and outer sleeve portion 73 is sealed with the lateral wall of test tube body 46, can carry out the guide orientation through first toper spigot surface 75 moreover, makes things convenient for test tube lid 71 reliably to embolia on the test tube body 46.

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

As shown in fig. 19 and 20, in the present embodiment, the end of the inner insertion portion 72 is located outside the outer race portion 73. After setting up like this, when cup jointing, first toper spigot surface 75 can cooperate with test tube body 46 earlier, when test tube lid 71 and test tube body 46 are not aligned, can carry out the automatic guiding location.

As shown in fig. 19 and 20, in the present embodiment, the end of the test tube cover 71 facing away from the insertion portion 72 has a holding portion 77. The provision of the gripping portion 77 facilitates gripping of the test tube cover 71 by other components.

The switch cover mechanism 4 of this embodiment does not need the servo motor 29 and the clamping cylinder 30 integrated in embodiment 1 or embodiment 2, and the switch cover mechanism 4 of this embodiment only needs one clamping cylinder 30 for clamping the test tube body 46. The test tube cover 71 can be driven to move by the moving unit 9 and the grabbing assembly 10, so that the test tube cover 71 is separated from the test tube body 47 or seals the test tube body 47.

Example 4

As shown in fig. 21, the present embodiment discloses a water quality detecting apparatus, which is different from embodiments 1, 2 or 3 in that the present embodiment further includes a sample cup conveying mechanism 79, a stirring mechanism 80 and a syringe cleaning mechanism 81, and the rack 1 of the present embodiment has a sampling position 83 for placing a sample cup 82.

As shown in fig. 21, 23 and 24, the sample cup transfer mechanism 79 includes a cup pushing member 86, and an input member 84 and an output member 85 respectively disposed at both sides of the sampling site 83, the cup pushing member 86 being disposed at a side of the input member 84 away from the output member 85;

the input assembly 84 and the output assembly 85 each include:

a shelf 87;

two rollers 88, both rotatably mounted on the frame 87;

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

a conveyor belt driving motor 91 for driving one of the rollers 88 to rotate;

cup pushing element 86 is used to push sample cup 82 of input assembly 84 into sampling site 83 and to push sample cup 82 of sampling site 83 into receiving slot 90 of output assembly 85.

The input assembly 84 can be used for simultaneously placing a plurality of sample cups 82, the sample cup 82 of the input assembly 84 close to the sample level can be pushed into the sampling position 83 through the cup pushing element 86, and after the sample cup 82 of the sampling position 83 is sampled, the cup pushing element 86 works further to push the sample cup 82 of the sampling position 83 into the accommodating groove 90 of the output assembly 85. The sample cup conveying mechanism 79 of the application can realize automatic sample cup feeding 82 and sample cup removing 82, and compared with manual operation, the labor capacity can be effectively reduced.

As shown in fig. 23 and 24, in the present embodiment, the frame 1 has notches 92 at both sides of the sampling site 83, and the end of the conveyor belt 89 of the input module 84 and the end of the conveyor belt 89 of the output module 85 are respectively located at the corresponding notches 92.

As shown in fig. 23, in the present embodiment, the sample cup 82 is a circular cup, one end of the accommodating groove 90 extends to the edge of the conveying belt 89, the accommodating groove 90 includes two parallel straight side walls 93 and an arc-shaped side wall 94 connecting the two straight side walls 93, 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. Holding channel 90 is configured to facilitate positioning of sample cup 82 and to facilitate removal or insertion of sample cup 82.

As shown in fig. 23 and 24, in this embodiment, the sample cup conveying mechanism 79 further includes an arc-shaped limiting block 95 slidably disposed on the frame 1 and a limiting block driving cylinder 96 for driving the arc-shaped limiting block 95 to move up and down, the arc-shaped limiting block 95 is located at the sampling position 83, and after the arc-shaped limiting block 95 moves up, the arc-shaped limiting block is used for limiting the position of the sample cup 82, so that the cup pushing element 86 accurately pushes the sample cup 82 of the input assembly 84 into the sampling position 83.

As shown in fig. 22 and 23, in the present embodiment, the sample cup 82 has an annular mounting groove (not shown), on which an annular iron sheet 97 is mounted, and a magnet (not shown) is mounted in the circular arc-shaped side wall 94. Through the cooperation of the magnet and the ring-shaped iron sheet 97, magnetic attraction can be formed, so that the sample cup 82 is better positioned in the accommodating groove 90.

In order to prevent the annular iron piece 97 from interfering with the magnetic rod 105, it is preferable that the distance between the annular iron piece 97 and the bottom wall of the sample cup 82 is 5mm or more.

As shown in fig. 23 and 24, in the present embodiment, the input assembly 84 further includes a positioning rotating member 98, and the positioning rotating member 98 is engaged with the rack 87 for adjusting the angle of the rack 87; the positioning rotating member 98 is a motor or a rotary cylinder.

In actual use, in the initial state, the sample cup 82 is placed in the accommodating groove 90 of the input assembly 84, and at this time, it cannot be guaranteed that all the side walls of the sample cup 82 abut against the arc-shaped side wall, before the conveying belt 89 moves, the shelf 87 is controlled to rotate through the positioning rotating piece 98, so that the sample cup 82 inclines towards one side of the arc-shaped side wall, and under the dual effects of gravity and magnetic force, the sample cup 82 can move until the sample cup abuts against the arc-shaped side wall.

In actual use, the cup pushing element 86 is a cylinder or an electric push rod.

As shown in FIG. 23, in the present embodiment, an arc-shaped push plate 99 is fixed on the movable member of the cup pushing member 86, and the arc-shaped push plate 99 is convenient for matching with the sample cup 82. In actual use, the surface of the curved pushing plate 99 which is matched with the sample cup 82 is provided with a flexible pad which can protect the sample cup 82.

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

a magnetic stirrer 100 located below the sampling site 83 (see fig. 24);

the conveying pipe 101 comprises a material storage part 102 positioned on the upper side and a conveying part 103 positioned on the lower side, the lower end of the conveying part 103 is used for extending into or aligning with a beaker of the sampling position 83, and the material storage part 102 is provided with a strip-shaped opening 104 arranged along the length direction of the material storage part;

a plurality of magnetic rods 105 which are sequentially arranged in the material storage part 102 from top to bottom, and the magnetic stirrer 100 is used for controlling the magnetic rods 105 falling into the sample cup 82 at the sampling position 83 to rotate;

a first blocking piece 106 for passing through the strip-shaped port 104 and supporting the magnetic rod 105 at the lowermost part of the stock section 102;

a first barrier rib driving cylinder 107 for driving the first barrier rib 106 to reciprocate;

a second blocking piece 108 for passing through the strip-shaped port 104 and supporting a second magnetic rod 105 at the lowermost part of the stock section 102;

the second blocking piece driving cylinder 109 is used for driving the second blocking piece 108 to reciprocate;

the second barrier sheet lifting cylinder 110 is used for driving the second barrier sheet driving cylinder 109 to move up and down;

and a conveying pipe lifting element 111 for driving the conveying pipe 101, the first barrier sheet driving cylinder 107, the second barrier sheet driving cylinder 109 and the second barrier sheet lifting cylinder 110 to synchronously move up and down.

In the initial state, the first stopper 106 extends into the strip-shaped mouth 104, supports the magnetic rod 105 at the lowest position of the stock section 102, when it is desired to drop one of the magnetic rods 105 to the sample cup 82, the transfer tube elevating member 111 is operated to move the transfer tube 101 downward, the lower end of the transfer portion 103 is used to extend into or align with the beaker of the sampling site 83, then the second blocking piece drives the air cylinder 109 to work, the second blocking piece 108 passes through the strip-shaped opening 104 to support the second magnetic rod 105 at the lowest part of the storing part 102, then the second barrier plate lifting cylinder 110 works to drive the second barrier plate driving cylinder 109 and the second barrier plate 108 to lift, at this time, the magnetic rod 105 at the lowest position is not attracted with other magnetic rods 105, when the first blocking piece driving cylinder 107 drives the first blocking piece 106 to exit the strip-shaped opening 104, the lowermost magnetic rod 105 falls under gravity along the conveyor 103 into the sample cup 82, the magnetic rod 105 in the sample cup 82 is rotated by the magnetic stirrer 100 to perform a stirring operation. Finally, the first blocking piece 106 is reset, the second blocking piece lifting cylinder 110 and the second blocking piece driving cylinder 109 are reset, and the conveying pipe lifting element 111 is reset to wait for next discharging.

The output magnetic rod 105 that the rabbling mechanism 80 of this application can be continuous, every magnetic rod 105 cooperates with a sample cup 82, under magnetic stirrers 100's effect, can carry out stirring operation, does not need to stir at every turn and washs magnetic rod 105 after accomplishing, can detect the completion after, to the unified washing of magnetic rod 105 who uses.

In practice, the magnetic stirrer 100 may be a 85-2B model magnetic stirrer 100 available from Jingsu Jingyi instruments & Tech.

As shown in fig. 26, in the present embodiment, a distance sensor 112 is attached to the lower end of the conveying section 103.

The distance between the conveying part 103 and the liquid in the sample cup 82 can be detected by the distance sensor 112, so that the operation of the conveying pipe lifting element 111 can be controlled, the falling position of the magnetic rod 105 is as close to the liquid level as possible, and the liquid is prevented from being splashed out in a large amount when the magnetic rod 105 falls.

In this embodiment, the conveying pipe 101, the first blocking piece 106 and the second blocking piece 108 are all made of non-metal materials. In practice, the material may be plastic.

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

As shown in fig. 25 and 26, in the present embodiment, a conveying pipe rotating element 113 is further included, and the conveying pipe rotating element 113 is engaged with the conveying pipe lifting element 111 for controlling the conveying pipe lifting element 111 to rotate. Can drive conveyer pipe 101 through conveyer pipe rotating element 113 and rotate to the better sample cup 82 of keeping away from sample position 83 does not influence the operation of other mechanisms to the sample cup.

In actual use, the conveying pipe rotating element 113 is a rotary cylinder or a motor.

As shown in fig. 25 and 26, in the present embodiment, the present invention further includes a mounting plate 114 fixed to the conveying pipe 101, the second blocking plate lifting cylinder 110 is fixed to the mounting plate 114, the first blocking plate driving cylinder 107 is fixed to the mounting plate 114, and the movable member of the conveying pipe lifting element 111 is fixed to the mounting plate 114.

In the present embodiment, the end of second barrier 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 rods 105.

As shown in fig. 21, 23 and 27, the syringe cleaning mechanism 81 of the present embodiment includes:

a circulating box 115 with an opening at the upper end and fixed on the frame 1;

a filter layer 116 fixed to a central region of the circulation tank 115 to divide the circulation tank 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 positioned above the circulating tank 115 and the water outlet direction is inclined downwards;

and a water pump 119 mounted on the water outlet pipe 133 for delivering the water of the lower layer 118 to the upper layer 117.

In use, the syringe assembly is moved over the circulation box 115 with the needle of the syringe assembly 27 in the path of the outlet pipe 133, whereupon the syringe assembly 27 is withdrawn to draw in clean water from the lower layer 118 and the syringe assembly 27 is compressed to spray water onto the upper layer 117, whereupon a cleaning operation is completed.

The syringe wiper mechanism 81 of this application can make water cycle use, effective water economy resource through filter layer 116. In practice, the filter layer 116 may be constructed using known filter layers 116.

As shown in fig. 23 and 27, in the present embodiment, a detection sensor 120 is installed at one end of the water outlet pipe 133 above the circulation box 115, and the detection sensor 120 is used for detecting the needle of the syringe assembly. The detection sensor 120 is located at an upper side of an end of the water outlet pipe 133, and the detection sensor 120 is electrically connected to a controller of the water pump 119. The detection sensor 120 is located at the upper side of the end of the 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 in place by the detection sensor 120.

When in actual use, the device also comprises a water replenishing pipe which is communicated with the lower layer 118.

Example 5

This embodiment discloses a test tube washing mechanism 121, which can be applied to embodiments 1, 2, 3 or 4, that is, the test tube washing mechanism 121 of this embodiment can replace the storage rack of embodiment 1, as shown in fig. 28 and 29, the test tube washing mechanism 121 of this embodiment includes:

the storage rack is rotatably arranged on the rack 1, the upper end face of the storage rack is provided with a plurality of fixing grooves 122, the storage rack is provided with an initial working position and a cleaning working position, and the cleaning working position rotates 180 degrees relative to the initial working position;

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

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

a cleaning rack 124 which is positioned below the storage rack, and a plurality of water spray heads 125 are arranged on the cleaning rack 124;

a first reciprocating element 126 for driving the wash rack 124 to reciprocate so as to spray water toward the test tube held on the test tube self-clamping sleeve 45;

an air drying rack 127 positioned below the storage rack, the air drying rack 127 being provided with a plurality of air blowing heads 128;

a second reciprocating member 129 for driving the air drying rack 127 to reciprocate to blow air to the test tube fixed on the test tube self-gripping sleeve 45;

and a waste liquid box 130 positioned below the storage shelf for receiving waste water.

The application discloses test tube cleaning mechanism 121 can carry out self-cleaning to the test tube, during the use, the test tube is fixed on the test tube from the grip slipper 45, make storage rack rotate 180 through rotary driving piece 123, switch over to the washing work position from initial work position, the opening of test tube is downward this moment, then first reciprocating element 126 and sprinkler bead 125 work, the water jet is in the test tube, wash the test tube, waste water falls into waste liquid box 130 in, wash second reciprocating element 129 and the work of blowing head 128 after accomplishing, dry the test tube, the rotatory reset of storage rack after the dry completion.

As shown in fig. 28, in the present embodiment, the rack 1 has an avoidance port 131, and the storage rack is disposed at the avoidance port 131.

In practice, the rotary driving member 123 is a rotary cylinder or a motor.

As shown in fig. 29, the tube washing mechanism 121 further includes a ring-shaped or rectangular enclosure 132 fixed to the rack 1, the lower end of the storage rack is located in the enclosure 132, and the wash rack 124 and the drying rack are located below the enclosure 132. The provision of the dam 132 prevents water from splashing around.

In actual use, the first reciprocating element 126 is a cylinder or an electric push rod; the second reciprocating element 129 is a cylinder or an electric push rod.

The test tube in this embodiment refers to a test tube with a cap removed.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.

Claims (10)

1. A sample cup conveying mechanism of water quality detection equipment comprises a rack and is characterized in that a sampling position for placing a sample cup is arranged on the rack, the sample cup conveying mechanism comprises a cup pushing element, an input assembly and an output assembly, wherein the input assembly and the output assembly are respectively arranged on two sides of the sampling position, and the cup pushing element is positioned on one side of the input assembly, which is far away from the output assembly;

the input assembly and the output assembly each include:

a shelf;

the two rollers are rotatably arranged on the frame;

the conveying belt is wound on the two rollers, and a plurality of accommodating grooves are formed in the outer surface of the conveying belt and used for accommodating sample cups;

the conveying belt driving motor is used for driving one of the rollers to rotate;

the cup pushing element is used for pushing the sample cup of the input assembly into the sampling position and pushing the sample cup of the sampling position into the accommodating groove of the output assembly.

2. The conveying mechanism for the sample cup of the water quality detecting device according to claim 1, wherein the frame has notches at both sides of the sampling position, and the end of the conveying belt of the input module and the end of the conveying belt of the output module are respectively located at the corresponding notches.

3. The conveying mechanism for the sample cup of the water quality detecting device according to claim 1, wherein the sample cup is a circular cup, one end of the accommodating groove extends to the edge of the conveying belt, the accommodating groove comprises two parallel straight side walls and an arc-shaped side wall connecting the two straight side walls, the lower end of the sample cup is placed in the accommodating groove, and the outer side wall of the sample cup abuts against the arc-shaped side wall.

4. The conveying mechanism for the sample cup of the water quality testing device according to claim 3, further comprising an arc-shaped limiting block slidably disposed on the frame and a limiting block driving cylinder for driving the arc-shaped limiting block to move up and down, wherein the arc-shaped limiting block is located at the sampling position and is used for limiting the position of the sample cup after the arc-shaped limiting block moves up, so that the cup pushing element accurately pushes the sample cup of the input assembly into the sampling position.

5. The conveying mechanism for the sample cup of the water quality detecting device according to claim 4, wherein the sample cup is provided with an annular mounting groove, an annular iron sheet is mounted on the annular mounting groove, and a magnet is mounted in the circular arc-shaped side wall.

6. The conveying mechanism for sample cups of water quality testing equipment according to claim 5, wherein said input assembly further comprises a positioning rotating member, said positioning rotating member is engaged with the rack for adjusting the angle of the rack; the position-adjusting rotating piece is a motor or a rotating cylinder.

7. The conveying mechanism for sample cups of water quality detecting equipment according to claim 1, wherein the cup pushing element is a cylinder or an electric push rod.

8. The conveying mechanism for sample cups of water quality testing equipment according to claim 7, characterized in that an arc-shaped push plate is fixed on the movable piece of the cup pushing element, and the surface of the arc-shaped push plate, which is matched with the sample cups, is provided with a flexible pad.

9. A water quality testing apparatus comprising the sample cup transport mechanism according to any one of claims 1 to 8.

10. The water quality testing apparatus of claim 9, further comprising a mobile grasping mechanism capable of extracting liquid in a sample cup of a sampling site, the mobile grasping mechanism comprising:

a mobile unit;

a mounting bracket mounted on the moving unit;

the first lifting element is arranged on the mounting frame and comprises a first driving piece capable of lifting;

a first gripping element fixed relative to the first drive member, the first gripping element for gripping an item;

the second lifting element is arranged on the mounting frame and comprises a second driving piece capable of lifting;

a syringe assembly mounted on the mounting frame, the syringe assembly capable of withdrawing and releasing a liquid.

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