CN112014320B

CN112014320B - Automatic water sample detector

Info

Publication number: CN112014320B
Application number: CN202010940506.6A
Authority: CN
Inventors: 邓镭; 吴建康; 黄海艇
Original assignee: Shanghai Yangtai Medical Technology Co ltd
Current assignee: Shanghai Yangtai Medical Technology Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2023-12-01
Anticipated expiration: 2040-09-09
Also published as: CN112014320A

Abstract

The invention relates to an automatic water sample detector which comprises a heating execution assembly, a light splitting detection assembly, a bottle execution assembly, a bottle cap execution assembly, a cap breaking execution mechanism and a manipulator execution assembly, wherein the bottle execution assembly comprises a bottle lifting mechanism, a bottle rotating mechanism and a bottle oscillating mechanism; the bottle cap executing assembly is arranged above the bottle body executing assembly and comprises a cap body swinging mechanism and a cap body overturning mechanism; the broken cover executing mechanism is provided with a thimble with a downward pointed end and a broken cover swinging executing mechanism; the manipulator execution assembly comprises a transverse moving mechanism, a longitudinal moving mechanism and a translation table, wherein a first manipulator for adding a liquid sample into the bottle body in the positioning tube and a second manipulator for clamping the digestion colorimetric tube on the test tube rack and placing the digestion colorimetric tube in the positioning tube are arranged on the translation table. The advantages are that: simple structure, the operation of being convenient for, intelligent degree improves, and is safe, can handle multiunit test tube simultaneously.

Description

Automatic water sample detector

Technical Field

The invention relates to the field of chemical measuring equipment, in particular to an automatic water sample detector for water quality detection.

Background

With the rapid development of socioeconomic performance, the Chemical Oxygen Demand (COD) is an important and faster-to-measure organic pollution parameter in the research of river pollution and industrial wastewater properties and the operation management of wastewater treatment plants, and is defined by taking the amount of oxidant consumed by oxidizing the reducing substances in one liter of water sample as an index under a certain condition, converting the amount into milligrams of oxygen required after all the water sample is oxidized, and taking mg/L as one of comprehensive indexes of the relative organic content, wherein the index reflects the pollution degree of the reducing substances in the water.

The high chemical oxygen demand means that water contains a large amount of reducing substances, mainly organic pollutants. The higher the chemical oxygen demand, the more serious the organic pollution of the river water, and the source of the organic pollution can be pesticides, chemical plants, organic fertilizers and the like. If not treated, many organic pollutants can be adsorbed and deposited by bottom mud at the bottom of the river, and can cause lasting toxic action on aquatic organisms in a plurality of years in the future. After massive death of aquatic organisms, the ecosystem in the river is destroyed. If people feed on organisms in water, a great deal of toxins in the organisms are absorbed and accumulated in the bodies, and the toxins often have the effects of carcinogenesis, deformity and mutation, so that the toxins are extremely dangerous to people. In addition, if the contaminated river water is used for irrigation, plants and crops are affected, growth defects are likely to occur, and people cannot eat the crops.

Along with the implementation of the national environmental pollution discharge total amount control policy, the measurement and calculation of the industrial wastewater COD discharge total amount index become urgent needs. Chemical Oxygen Demand (COD) analysis is typically the determination of the amount of organic contaminants in surface water and wastewater. ISO 15705-2002 Water quality-Determination of the chemical oxygen demand index (ST-COD) -Small-scale sealed-tube METHOD and USEPA METHOD 410.4THE DETERMINATION OF CHEMICAL OXYGEN DEMAND BY SEMI-AUTOMATED COLORIMETRY are the main international standards for COD measurements using the sealed tube METHOD. The corresponding standard of China is the quick digestion spectrophotometry for measuring the chemical oxygen demand of the water quality of HJ/T399-2007.

The measurement of the COD in the sealed tube is to take the sealed tube as a digestion tube, take a small amount of water sample and reagent in the sealed tube, put the water sample and reagent in a small constant-temperature heating digestion device, heat and digest the water sample at constant temperature, and measure the COD value by a spectrophotometry. The advantage of this method is that it uses a pre-prepared sealed tube to minimize handling of toxic and hazardous reagents. A typical seal tube COD analysis process is as follows:

1. opening the reagent vessel lid

2. Removing a certain amount of sample to be measured

3. Injecting the sample into the reagent tube, screwing the cover of the reagent tube, and uniformly mixing the sample

4. Placing the uniformly mixed sample tube in a heating digestion device

5. The sample is heated and reacted at 150-165 ℃ for a prescribed time

6. After the reaction time has arrived, the sample is placed in a cooling rack

7. Sample mixing is carried out in the cooling process

8. After cooling to a prescribed temperature, the COD concentration was measured

The sealing tube has the performances of acid resistance, high temperature resistance and compression and explosion resistance, can be used for digestion, and can also be used as a colorimetric tube for colorimetric measurement, and is called a digestion colorimetric tube.

The small heating digestion device takes an aluminum block as a heating body, heating holes are uniformly distributed, and the set heating temperature is the digestion reaction temperature. Meanwhile, due to the proper size of the sealing tube, the digestion reaction liquid occupies a proper space proportion of the sealing tube. Part of a sealing tube containing digestion reaction liquid is inserted into a heating hole of a heater, and the bottom of the sealing tube is heated at a constant temperature of 165 ℃; the upper part of the sealing pipe is higher than the heating hole and is exposed in the space, and the top of the pipe orifice is cooled to about 85 ℃ under the natural cooling of air; the difference in temperature ensures that the reaction solution in the small sealed tube is in a micro-boiling reflux state at this constant temperature. After digestion reaction by adopting the sealing tube, the sealing colorimetric tube can be directly measured on a special photometer for COD after digestion. The method has the characteristics of small occupied space, small energy consumption, small reagent consumption, minimized waste liquid, simple operation, safety, stability, accuracy, reliability, suitability for mass measurement and the like, and overcomes the defects of the classical standard method.

In general, the above working process is mainly implemented by manual operation, which has the following defects:

(1) The manual operation has low working efficiency, and the water sample treatment is a time-consuming and labor-consuming process. During the treatment process, a considerable portion of the time is spent on reagent addition;

(2) Human errors are very easy to generate in manual operation, the accuracy of distribution and transfer, the control of heating time are poor, and the operation errors are large; particularly, when the sample amount is large, errors are easily generated in long-time manual operation;

(3) The risk of pollution to experimental equipment and operators is easily caused;

(4) The sealed tube is in a high temperature environment in the digestion process, and the injury of operators can be caused.

Therefore, the existing detection method is difficult to realize large-scale and large-batch efficient detection.

Disclosure of Invention

The invention aims at overcoming the defects of the existing manual operation means, and provides an automatic water sample detector which is fully automatic and intelligent in operation, safe and capable of processing a plurality of groups of test tubes at the same time.

In order to achieve the above purpose, the embodiment of the invention provides an automatic water sample detector, which is realized by the following technical scheme:

the utility model provides a water sample automated inspection appearance, relates to a clear up color comparison tube for water sample detects, should clear up the bottle lid of color comparison tube upper and lower end all can with the bottleneck screw thread sealing connection of its bottle, and clear up the one end of bottle lid and have solid solute through the aluminium foil is sealed under the color comparison tube state of leaving the factory, its characterized in that, water sample automated inspection appearance includes:

The water sample test tube station is used for placing and positioning a test tube rack, and the test tube rack is used for containing test tubes filled with water sample liquid;

the digestion colorimetric tube station is used for placing and positioning a digestion colorimetric tube rack containing the digestion colorimetric tubes;

the heating execution assembly is used for placing the digestion colorimetric tube rack and heating the digestion colorimetric tube on the digestion colorimetric tube rack;

the spectrophotometry detection component is used for placing the digestion colorimetric tube and performing spectrophotometry detection on the digestion colorimetric tube;

the bottle body executing assembly comprises a bottle body lifting mechanism and a bottle body rotating mechanism; the bottle lifting mechanism is used for selectively carrying out integral lifting or integral oscillation on the bottle rotating mechanism; the bottle body rotating mechanism comprises a positioning tube for vertically placing the digestion colorimetric tube, a bottle body clamp which is driven by the bottle body clamping executing mechanism to selectively clamp the bottle body of the digestion colorimetric tube in the positioning tube, and a rotating executing mechanism for driving the positioning tube and the bottle body clamp to rotate around the axis of the digestion colorimetric tube in the positioning tube;

the bottle cap executing assembly comprises a cap body swinging mechanism and a cap body overturning mechanism; the cover body swinging mechanism is used for enabling the cover body overturning mechanism to intermittently swing between a first limit position and a second limit position around a vertical axis; the cover body overturning mechanism comprises a cover body clamp which is driven by the cover body clamping executing mechanism to selectively clamp and position the inner digestion cuvette cover in the tube when the cover body overturning mechanism is in a first limit position, and an overturning executing mechanism which is driven by the cover body clamping executing mechanism to intermittently rotate around a horizontal shaft when the cover body overturning mechanism is in a second limit position;

The cap breaking executing mechanism is provided with a thimble with a downward pointed end and a cap breaking swing executing mechanism for driving the thimble to swing to the position right above the positioning tube when the bottle body rotating mechanism descends;

the manipulator executing assembly comprises a translation stage which is driven by the traversing mechanism and the longitudinal moving mechanism to move between a water sample test tube station, a digestion cuvette station, a bottle executing assembly, a heating executing assembly and a light splitting detection assembly; the translation table is provided with a first manipulator, a second manipulator and two manipulator lifting mechanisms which respectively drive the first manipulator and the second manipulator to move up and down relative to the translation table; the second manipulator is used for clamping the digestion colorimetric tube on the digestion colorimetric tube station and placing the digestion colorimetric tube in the positioning tube or the test tube groove, and clamping the digestion colorimetric tube rack on the digestion colorimetric tube station and placing the digestion colorimetric tube rack on the positioning frame; the first manipulator is used for stirring the liquid sample, sucking the liquid sample and adding the liquid sample into the digestion colorimetric tube in the positioning tube;

the controller is in control connection with the bottle lifting mechanism, the bottle clamping executing mechanism, the rotating executing mechanism, the cover swinging mechanism, the cover clamping executing mechanism, the overturning executing mechanism, the cover breaking swinging executing mechanism, the heating executing assembly, the light splitting detecting assembly, the first manipulator, the second manipulator, the manipulator lifting mechanism, the traversing mechanism and the longitudinal moving mechanism.

The heating execution assembly comprises a positioning frame for placing and positioning the digestion colorimetric tube rack and an electric heating block for heating the digestion colorimetric tube in the positioning frame; the positioning frame is rotatably arranged and swings around a horizontal axis under the driving of a positioning frame swinging executing mechanism; the electric heating block is arranged below the positioning frame and driven by a heating block lifting mechanism to intermittently lift.

The heating execution assembly further comprises a cabin body with an opening at the top and a top cover capable of selectively closing the opening at the top of the cabin body; the positioning frame is arranged in the cabin body, and shafts supported by bearings on the side wall of the cabin body are respectively arranged at two ends of the positioning frame; the two opposite side walls of the cabin body are also provided with holes, a cabin door which rises and falls along with the rising and falling of the electric heating block is arranged at the holes, and a fan is arranged at the hole of at least one of the two side walls; the controller is controlled and connected with the heating block lifting mechanism, the fan and the positioning frame swing executing mechanism; the top cover is supported by a sliding rail arranged at the top of the cabin body and driven by a sliding executing mechanism to rotate along the sliding rail, so that an opening at the top of the cabin body can be selectively closed; the sliding actuating mechanism comprises a top cover driving motor and a top cover driving belt wound between a pair of driving wheels and driven wheels; the top cover driving motor is fixedly arranged on the outer side of the cabin body; the driving wheel is arranged on an output shaft of the top cover driving motor, and the driven wheel is rotatably arranged at a driven wheel seat on the cabin body, so that the top cover transmission belt is horizontally arranged along the length direction of the sliding rail; the bottom of the top cover is fixedly provided with a rack along the length direction of the sliding rail, and the driven wheel is coaxially fixed with a gear meshed with the rack; the positioning frame swing actuating mechanism comprises a positioning frame driving motor and a reduction gear set, and an output shaft of the positioning frame driving motor is connected with the heating frame through the reduction gear set and drives the heating frame to swing; a heat insulation layer is arranged at the joint of the shaft of the heating frame and the reduction gear set; the electric heating block is provided with a plurality of through holes and a temperature sensor, and a heating rod is arranged in the through holes in a penetrating way; the heating block lifting mechanism comprises a heating block driving motor, a speed reducer, a screw rod and a nut; the speed reducer is connected with the output shaft of the heating block driving motor and the screw rod, and the nut is sleeved on the screw rod and is fixed with the electric heating block.

The light splitting detection assembly comprises a test tube groove for placing the digestion colorimetric tube, wherein a light source emitter is arranged on one side of the test tube groove, and a light source receiver is arranged on the opposite side of the test tube groove; the test tube groove comprises a tubular fixed support, and windows are formed in two sides of the fixed support, so that light from the light source emitter enters the light source receiver through the test tube groove; the upper end and the lower end of the fixed support are respectively rotatably provided with an upper bracket and a lower bracket through bearings, and the upper bracket is positioned at the upper part of the lower bracket and is coaxial with the lower bracket; the lower bracket is provided with a groove which can just accommodate the bottom of the test tube to be tested; the upper bracket is annular, and is provided with a clamping piece for clamping the digestion colorimetric tube; in addition, the light-splitting detection assembly further comprises a digestion colorimetric tube rotation driving mechanism for driving the upper bracket and the lower bracket to synchronously rotate.

The clamping piece comprises at least three spring pieces which are rotationally symmetrical and arranged on the upper bracket, one end of each spring piece is fixed with the top end of the upper bracket, and the other end of each spring piece is obliquely arranged towards the inside of the upper bracket and is suspended, so that a test tube to be tested, which is inserted into the upper bracket, is clamped; the digestion colorimetric tube rotary driving mechanism comprises a digestion colorimetric tube rotary double-shaft motor, driving wheels are mounted on two output shafts of the digestion colorimetric tube rotary double-shaft motor, driven wheels are arranged on the upper support and the lower support, and two belts are wound between the pair of driving wheels and the driven wheels in a one-to-one correspondence mode and are tensioned.

The bottle body clamp and the bottle cap clamp comprise a gripper bracket, a left gripper and a right gripper which are symmetrically hinged on the gripper bracket, and a connecting rod mechanism for driving the left gripper and the right gripper to be released or gripped; the connecting rod mechanism is connected with a sliding block and moves along with the movement of the sliding block; the bottle clamping executing mechanism comprises a bottle clamping driving motor, and a nut on a screw rod connected with the bottle clamping driving motor is fixedly connected with a sliding block of the bottle clamp, so that the sliding block of the bottle clamp is driven to slide in a corresponding guide rail; two windows are symmetrically formed in the side wall of the positioning tube, and the left and right grippers of the bottle clamp are arranged at the windows; the cover body clamping executing mechanism comprises a cover body clamping driving motor, and a nut on a screw rod connected with the cover body clamping driving motor is fixedly connected with a sliding block of the bottle cap clamp, so that the sliding block of the bottle cap clamp is driven to slide in a corresponding guide rail.

The cover swing mechanism comprises a cover turntable, a cover swing driving motor, a bottom plate, a first vertical plate and a second vertical plate, wherein the cover turntable, the cover swing driving motor, the bottom plate and the first vertical plate and the second vertical plate are rotatably arranged; the overturning executing mechanism comprises a rotary structural member and an overturning driving mechanism for driving the rotary structural member, wherein the bottle cap clamp and the cover body clamping executing mechanism are installed in the rotary structural member, and the left grip and the right grip of the bottle cap clamp are symmetrically arranged on the axis of the rotary structural member.

The first vertical plate and the second vertical plate are respectively provided with a round hole, the round holes are provided with bearings, the two bearings are coaxially arranged, and the inner rings are sleeved on the rotary structural member; the cover body overturning driven wheel is arranged at the part of the rotary structural member between the first vertical plate and the second vertical plate, the overturning driving mechanism comprises a cover body overturning driving motor, a cover body overturning driving wheel is arranged on an output shaft of the cover body overturning driving motor, and a cover body overturning belt is wound between the cover body overturning driving wheel and the cover body overturning driven wheel and is tensioned; the rotary structural member is provided with a central through hole along the rotation axis thereof, and the central through hole forms a guide rail of the upper sliding block of the bottle cap clamp.

The bottle lifting mechanism comprises a plurality of guide posts, connecting rods, a turntable and a turntable driving mechanism for driving the turntable to rotate on a vertical plane, wherein the guide posts, the connecting rods and the turntable are vertically arranged; the bottle body rotating mechanism is movably arranged on the guide post, one end of the connecting rod is hinged with the outer edge of the turntable, and the other end of the connecting rod is hinged with the bottle body rotating mechanism; the rotary executing mechanism comprises a lifting plate, a bottle turntable and a bottle rotary driving motor, wherein the lifting plate is movably arranged on the guide post, and the connecting rod is hinged with the lifting plate; the bottle rotary table is rotatably arranged on the lifting plate, and the bottle rotary driving motor drives the bottle rotary table to rotate through a belt transmission structure; the axis of the bottle turntable is vertically arranged, and the positioning tube is fixedly arranged on the axis of the bottle turntable; the rotary table driving mechanism comprises a bottle lifting driving motor, and the bottle lifting driving motor drives the rotary table to rotate through belt transmission.

The longitudinal moving mechanism comprises a longitudinal moving belt, a longitudinal moving driving motor, a longitudinal moving platform, an end panel and a longitudinal moving guide rail connected between the longitudinal moving platform and the end panel, wherein the longitudinal moving belt is wound between a pair of longitudinal moving belt wheels, the diameters of the pair of belt wheels are the same, one belt wheel of the pair of belt wheels is arranged on an output shaft of the longitudinal moving driving motor, and the other longitudinal moving belt wheel is rotatably arranged on a driven wheel seat so that the longitudinal moving belt is horizontally and longitudinally arranged; the translation table is movably arranged on the guide post and fixed with one side of the longitudinal moving belt, so that the translation table can slide along the longitudinal moving guide rail under the drive of the longitudinal moving belt;

the transverse moving mechanism comprises a transverse moving belt, a transverse moving driving motor, a first transverse moving guide rail and a second transverse moving guide rail; the first transverse moving guide rail and the second transverse moving guide rail are parallel and perpendicular to the longitudinal moving guide rail; the longitudinal moving platform is fixed on the sliding block of the first transverse moving guide rail, and the end panel is movably arranged on the second transverse moving guide rail; the transverse moving belt is wound between a pair of transverse moving belt wheels, the diameters of the pair of transverse moving belt wheels are the same, one transverse moving belt wheel is arranged on the output shaft of the transverse moving driving motor, and the other transverse moving belt wheel is rotatably arranged on a transverse moving driven wheel seat, so that the transverse moving belt is horizontally and transversely arranged; the longitudinal moving mechanism is fixed with one side of the transverse moving belt, so that the longitudinal moving mechanism can slide along the first transverse moving guide rail and the second transverse moving guide rail under the drive of the transverse moving belt;

The two manipulator lifting mechanisms comprise a manipulator lifting motor and a group of guide posts and racks, wherein two ends of the guide posts and the racks are respectively fixed into a whole through connecting seats; the translation platform is provided with four through holes which are vertically arranged, and the guide post and the rack are respectively sleeved in one through hole and can move up and down along the through holes; the manipulator lifting motor is arranged on the longitudinal moving platform, and an output shaft of the manipulator lifting motor is connected with a spline shaft arranged along the length direction of the longitudinal moving guide rail; two ends of the spline shaft are respectively supported by the longitudinal moving platform and the bearings on the end plates; the two spline shafts and the two racks are in direct or indirect meshing transmission.

The invention has the advantages that: simple structure, the operation of being convenient for, intelligent degree improves, and is safe, can handle multiunit test tube simultaneously.

Drawings

The above features and advantages of the present invention will become more apparent and readily appreciated from the following description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of a digestion cuvette used in an embodiment of the present invention;

FIG. 2 is a schematic diagram of the overall structure of an automatic water sample detector according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the bottle body executing assembly, the bottle cap executing assembly and the cap breaking executing mechanism according to the embodiment of the invention;

FIG. 4 is a schematic structural diagram of a cover breaking actuator according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram I of a bottle cap execution assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram II of a bottle cap execution assembly according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a bottle cap actuator assembly according to an embodiment of the present invention;

FIG. 8 is a schematic view of a bottle body executing assembly according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of a bottle body actuating assembly according to an embodiment of the present invention;

FIG. 10 is a schematic diagram I of a manipulator execution assembly according to an embodiment of the present invention;

FIG. 11 is a schematic diagram II of a manipulator execution assembly according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a step of placing a digestion cuvette according to an embodiment of the present invention;

FIG. 13 is a schematic diagram showing a step of puncturing an aluminum film of a bottle cap according to an embodiment of the present invention;

FIG. 14 is a schematic view of a rotational uncapping step according to an embodiment of the present invention;

FIG. 15 is a schematic diagram showing the steps of loading and flipping the bottle cap according to the embodiment of the present invention;

FIG. 16 is a schematic view showing a step of screwing the bottle cap according to the embodiment of the present invention;

FIG. 17 is a schematic diagram I of a heating execution assembly according to an embodiment of the present invention;

FIG. 18 is a schematic diagram II of a heating execution assembly according to an embodiment of the present invention;

FIG. 19 is a schematic view of a heating actuating assembly according to an embodiment of the present invention with side plates removed;

FIG. 20 is a schematic cross-sectional view of a heating actuating assembly according to an embodiment of the present invention;

fig. 21 is a schematic structural view of a heating rack and an electric heater of the heating execution assembly according to the embodiment of the present invention;

FIG. 22 is a schematic diagram of the overall structure of a spectroscopic detection assembly according to an embodiment of the present invention;

FIG. 23 is a schematic view of a spectroscopic assembly according to an embodiment of the present invention with the housing removed;

FIG. 24 is a schematic cross-sectional view I of a spectroscopic detection assembly according to an embodiment of the present invention;

fig. 25 is a schematic cross-sectional view II of a spectroscopic detection device according to an embodiment of the invention.

Detailed Description

Referring to fig. 1 to 25, reference numerals denote:

digestion cuvette 1

Bottle cap 11 and bottle body 12

Body 2

Cabinet 21

Water sample test tube station 211

Test tube rack 212

Handle 2121

Digestion cuvette station 213

Digestion colorimetric tube stand 214

Handle 2141

Manipulator cleaning station 215

Upper frame 22

Frame 23

Top plate 231, bottom plate 232, side plate 233

Bottle body executing component 3

Bottle lifting mechanism 31

Guide post 311, bottle lifting driving motor 312, bottle lifting driving wheel 313, bottle lifting belt 314, connecting rod 315, rotary disk 316 and bottle lifting driven wheel 317

Bottle rotating mechanism 32

Positioning tube 321

Window 3211

Bottle clamp 322

A gripper support 3221, a left gripper 3222, a right gripper 3223, a link mechanism 3224, and a slider 3225

Rotation actuator 323

Lifting plate 3231, bottle body turntable 3232, bottle body rotation driving motor 3233, and belt 3234

Bottle clamping actuator 324

Bottle clamping driving motor 3241, screw rod 3242 and nut 3243

Bottle cap actuating assembly 4

Cover swing mechanism 41

Base plate 411, first vertical plate 412, second vertical plate 413, cover turntable 414, cover swing drive motor 415, and gear transmission mechanism 416

Cover turnover mechanism 42

Bottle clamping actuator 421

Cover clamping driving motor 4211, screw rod 4212 and nut 4213

Bottle cap clamp 422

The gripper bracket 4221, the left gripper 4222, the right gripper 4223, the link mechanism 4224, the slide block 4225 and the turnover executing mechanism 423

Rotation structure 4231, cover turning belt 4232, cover turning drive motor 4233, bearing 4234, bearing 4235, cover turning driven wheel 4236, cover turning driving wheel 4237

Cover breaking actuator 5

Ejector pin 51, ejector pin swing driving motor 52, swing arm 53

Manipulator execution assembly 6

Traversing mechanism 61

Traversing belt 611, traversing drive motor 612, first traversing rail 613, slider 6131, second traversing rail 614, traversing pulley 615

Longitudinal movement mechanism 62

Roller 621, vertical movement belt 622, vertical movement driving motor 623, vertical movement guide rail 624, vertical movement platform 625, and end plate 626

Translation stage 63

First manipulator 631

Guide post 6311, rack 6312, connecting seat 6313, suction pipe 6314, stirring rod 6315, spline shaft 6316, first manipulator lifting motor 6317

Second manipulator 632

Guide post 6321, rack 6322, first manipulator lift motor 6323, spline shaft 6324, cylinder 6325, clamp 6326, and connection base 6327

Heating actuator assembly 7

Cabin body 71

Slide rail 711, fan 712, hatch 713, and hole 714

Top cover 72

Slide actuator 721

Top cover driving motor 7211, driving wheel 7212, top cover driving belt 7213 and driven wheel 7214

Rack 722

Positioning frame 73

Positioning frame swing actuating mechanism 731

Positioning frame driving motor 7311 and reduction gear set 7312

Electric heating block 74

Heating block lifting mechanism 741

Nut 7411, heating block driving motor 7412, decelerator 7413, and screw 7414

Through hole 742

Temperature sensor 743

Light-splitting detection assembly 8

Mounting table 81

Test tube tank 811

Tubular fixed support 8111, window 81111, window 81112, upper support 8112, lower bracket 8113, recess 81131 and spring plate 8114

Light source emitter 812

Light source receiver 813

Test tube rotary driving motor 814

Driving wheel 8141, driven wheel 8142, belt 8143

Bearing 815

Bar code scanner 816

The present invention is described in further detail below with reference to the attached drawings, to facilitate understanding by those skilled in the art:

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The embodiment provides an automatic water sample detector, which relates to a special digestion colorimetric tube, as shown in fig. 1, wherein the upper end and the lower end of a bottle cap 11 of the digestion colorimetric tube 1 can be sealed on a bottle body 12 of the digestion colorimetric tube, the lower end of the bottle cap 11 is in threaded sealing connection on the bottle body 12 in a factory state of the digestion colorimetric tube 1, and the upper end of the digestion colorimetric tube is sealed with solid solute through an aluminum foil.

It should be noted that the water sample automatic detector disclosed by the invention is not only suitable for the special digestion colorimetric tube, but also can realize full-automatic detection of the whole detection program by adopting the special digestion colorimetric tube, and is a scheme with highest efficiency. Other conventional digestion cuvettes are equally suitable for use with the disclosed detector, except that manual or other equipment is required to assist in the reagent addition process.

For reasons of using such digestion cuvettes, the following will describe in detail the structure of the device.

Referring to fig. 2, the automatic water sample detector in this embodiment includes a water sample test tube station, a digestion cuvette station, a heating execution assembly 7, a spectroscopic detection assembly 8, a bottle body execution assembly 3, a bottle cap execution assembly 4, a cap breaking execution mechanism 5, a manipulator execution assembly 6 and a controller.

1. Body 2

The machine body 2 is a main body of the water sample automatic detector, a cabinet 21 is arranged at the lower part, and an upper frame 22 is arranged at the rear side of the cabinet 21 through a stand column.

The cabinet 21 is used for installing a water sample test tube station, a digestion cuvette station, a manipulator cleaning station, a heating execution assembly 7, a light-splitting detection assembly 8, a bottle execution assembly 3, a bottle cap execution assembly 4, a cap breaking execution mechanism 5 and a controller.

The upper frame 22 is used to mount the robot actuating assembly 6.

The water sample test tube station 211 is used for placing and positioning a test tube rack 212, and the test tube rack 212 is used for containing test tubes containing water samples. The center of the test tube rack 212 is provided with a handle 2121 extending upwards for manual loading.

The digestion cuvette station 213 is used for placing and positioning the digestion cuvette rack 214, the digestion cuvette rack 214 is used for accommodating the digestion cuvette, and after manual loading (cuvette), a handle 2141 extends upwards to protrude from the center of the digestion cuvette rack, and is used for moving the whole clamping of the digestion cuvette rack by the manipulator executing assembly 6, for example, the digestion cuvette rack 214 is placed in the heating executing assembly 7.

The manipulator cleaning station 215 is located beside the water sample test tube station 211, and a cavity is arranged below the manipulator cleaning station, and cleaning devices such as a spray head and the like are arranged in the cavity. After the working procedures of sucking the water sample and stirring are carried out by the manipulator, the manipulator is moved into the cavity to clean the manipulator, so that measurement deviation caused by mixing of multiple water samples is avoided.

The frame 23 is disposed inside the machine body 2, and the frame 23 is a rectangular parallelepiped having a top plate 231, a bottom plate 232, and two side plates 233. The frame 23 serves as a mounting platform for the bottle body executing assembly 3, the bottle cap executing assembly 4 and the cap breaking executing mechanism 5.

2. Bottle body executing component 3

Referring to fig. 2, 3 and 8, the bottle executing assembly 3 is used for realizing various action instructions on the bottle 12, and comprises a bottle lifting mechanism 31 and a bottle rotating mechanism 32. The bottle lifting mechanism 31 is used for lifting or oscillating the bottle rotating mechanism 32 as a whole.

2.1 bottle rotating mechanism 32

Referring to fig. 8 and 9, the bottle rotating mechanism 32 includes a positioning tube 321, a bottle clamp 322, a rotation actuator 323, and a bottle clamping actuator 324. Wherein:

the positioning tube 321 is of a hollow tubular structure, the upper end of the positioning tube is open, and the hollow cavity of the positioning tube can be just used for vertically placing the digestion colorimetric tube 1. Two windows 3211 are symmetrically arranged on the side wall of the positioning tube 321, and the left and right handles of the bottle clamp 322 are arranged at the two windows 3211.

The bottle clamp 322 is driven by the bottle clamping actuator 324 to selectively clamp the bottle 12 of the digestion cuvette 1 in the positioning tube 321. The bottle clamp 322 includes a pair of rails composed of a slider 3225 and a rail, a gripper bracket 3221, a left gripper 3222 and a right gripper 3223 symmetrically hinged on the gripper bracket 3221, and a link mechanism 3224 driving the left gripper 3222 and the right gripper 3223 to be released or gripped. Opposite sides of the left and right grips 3222 and 3223 have grooves to fit into the bottle body 12. The link mechanism 3224 is connected to the slider 3225 and moves with the movement of the slider 3225.

The bottle clamping actuator 324 includes a bottle clamping driving motor 3241, a spindle of the bottle clamping driving motor 3241 is connected with a screw rod 3242, a nut 3243 is mounted on the screw rod 3242, and the nut 3243 is connected with a slider 3225 and drives the slider 3225 to slide in a corresponding guide rail. Thus, when the bottle clamping driving motor 3241 is operated, the spindle drives the screw rod 3242 to rotate, and further drives the nut 3243 to vertically move on the screw rod 3242, and the slider 3225 moves along with the screw rod 3242, so that the link mechanism 3224 pulls the left and right handles 3222 and 3223 to be released or gripped.

The rotation executing mechanism 323 is used for driving the positioning tube 321, the bottle clamp 322 and the bottle clamping executing mechanism 324 to rotate around the axis of the digestion cuvette 1 in the positioning tube 321.

The rotation actuator 323 includes a lifting plate 3231, a bottle turn table 3232, and a bottle rotation driving motor 3233. The bottle turntable 3232 is rotatably and vertically arranged on the lifting plate 3231, and the bottle rotation driving motor 3233 drives the turntable 3232 to rotate through the belt 3234, and the belt transmission structure is a common transmission means in the art, so that the description is omitted here. The axis of the bottle turntable 3232 is vertically arranged, and the positioning tube 321 is fixedly arranged on the axis of the bottle turntable 3232.

2.2 bottle lifting mechanism 31

Referring to fig. 3 and 8, the bottle lifting mechanism 31 includes four guide posts 311, a bottle lifting drive motor 312, a link 315, a turntable 316, and a bottle lifting belt 314 wound between a bottle lifting drive wheel 313 and a bottle lifting driven wheel 317.

Four guide posts 311 are vertically established at the bottom plate 232 of the frame 23. The lifting plate 3231 is correspondingly provided with a hole sleeved on the guide post 311, and can be movably arranged on the guide post 311 and move up and down along the guide post 311.

The turntable 316 has a rotation shaft supported by a bearing of a bracket on the base 232 and capable of rotating on a vertical plane, and the turntable 316 is coaxially fixed to the bottle lifting driven wheel 317 and is rotated by the bottle lifting driven wheel 317.

A bottle lifting driving wheel 313 is arranged on the rotating shaft of the bottle lifting driving motor 312, and the rotating disc 316 is driven to rotate by the bottle lifting belt 314. The outer edge of the turntable 316 is hinged with a connecting rod 315, and the other end of the connecting rod 315 is hinged with a lifting plate 3231; thus, the bottle rotating mechanism 32 is driven by the connecting rod 315 to periodically move up and down along the guide post 311 along with the rotation of the turntable 316.

As described above, when the bottle rotating mechanism 32 is required to be lifted at a low speed, the bottle lifting driving motor 312 is controlled to rotate at a low speed. When the bottle rotating mechanism 32 is required to oscillate, the bottle lifting drive motor 312 is controlled to rotate at a high speed.

3. Bottle cap actuating assembly 4

Referring to fig. 5 and 6, the bottle cap executing assembly 4 is disposed above the bottle body executing assembly 3, and is configured to implement various action instructions on the bottle cap 11, and includes a cap body swinging mechanism 41 and a cap body turning mechanism 42. Wherein:

3.1 cover swing mechanism 41

Referring to fig. 5, the cover swing mechanism 41 is configured to intermittently swing the cover tilting mechanism 42 between a first limit position and a second limit position about a vertical axis.

The cover swing mechanism 41 includes a cover turntable 414, a cover swing drive motor 415, a bottom plate 411, and a first standing plate 412 and a second standing plate 413 established on the bottom plate 411.

The cover swing driving motor 415 is mounted on the lower surface of the top plate 231 of the frame 23, and the cover turntable 414 is rotatably disposed on the upper surface of the top plate 231 of the frame 23 and is connected to the output shaft of the cover swing driving motor 415 through a set of gear mechanisms 416, so that the turntable is driven to rotate by the set of gear mechanisms 416 when the cover swing driving motor 415 operates. The axis of the rotation shaft of the cover turntable 414 constitutes the vertical axis around which the cover turning mechanism 42 swings. Since the gear transmission structure is a common transmission means in the art, the description thereof is omitted.

The first vertical plate 412 is established at a section of the bottom plate 411 and combined to form an L shape, and the second vertical plate 413 is disposed parallel to the first vertical plate 412 and established at a middle portion of the bottom plate 411. The base plate 411 is fixed to the cover turntable 414.

3.2 cover turnover mechanism 42

Referring to fig. 5-7, the cap tilting mechanism 42 is mounted on the first riser 412 and the second riser 413, and includes a bottle clamping actuator 421, a bottle cap clamp 422, and a tilting actuator 423.

When the cap tilting mechanism 42 is in the second limit position, the tilting actuator 423 drives the cap holder 422 to rotate intermittently about a horizontal axis. When the cap turning mechanism 42 is at the first limit position, the cap clamp 422 is driven by the cap clamping executing mechanism to selectively clamp the cap 11 of the digestion cuvette 1 in the positioning tube 321.

The flip actuator 423 includes a rotational structure 4231, a cover flip belt 4232, and a cover flip drive motor 4233. The first vertical plate 412 and the second vertical plate 413 are coaxially provided with round holes, the aperture of the first vertical plate 412 hole is larger than that of the second vertical plate 413 hole, the first vertical plate 412 round hole is provided with a bearing 4234 (fixedly connected with the outer ring of the bearing 4234), and the second vertical plate 413 round hole is provided with a bearing 4235 (fixedly connected with the outer ring of the bearing 4235). The bearing 4234 and the inner ring of the bearing 4235 are sleeved on the rotary structural member 4231 and fixedly connected. Thus, the rotation structure 4231 is movably disposed on the first vertical plate 412 and the second vertical plate 413, and rotates around a horizontal axis. The portion of the rotary structure 4231 between the first riser 412 and the second riser 413 is fitted with a cover flip follower 4236. The cover turning driving motor 4233 is fixedly installed on the side surface of the second vertical plate 413, the cover turning driving wheel 4237 is installed on the output shaft of the cover turning driving motor, and the cover turning belt 4232 is wound between the cover turning driving wheel 4237 and the cover turning driven wheel 4236 and is tensioned. Thus, when the cover turning drive motor 4233 is started, the belt transmission drives the rotation structure 4231 to rotate.

The rotary structure 4231 is provided with a central through hole along its axis of rotation, which constitutes a guiding rail.

The bottle cap clamp 422 comprises a sliding block 4225, a grip bracket 4221, a left grip 4222 and a right grip 4223 which are symmetrically hinged on the grip bracket 4221, and a link mechanism 4224 for driving the left grip 4222 and the right grip 4223 to be released or gripped.

The grip bracket 4221 is fixed to the rotation structure 4231, specifically, to an end surface of the rotation structure 4231 located outside the first vertical plate 412. The opposite sides of the left grip 4222 and the right grip 4223 have grooves for the adaptation of the bottle cap 11. The link mechanism 4224 is hinged with the left grip 4222 and the right grip 4223, respectively, and connects the slider 4225 so as to move with the movement of the slider 4225. The slider 4225 is substantially cylindrical, is fitted into the central through hole of the rotary member 4231, and forms a guide rail pair with the central through hole. The left grip 4222 and the right grip 4223 are disposed symmetrically to the rotational structure 4231 axis.

The cover clamping actuator 421 includes a cover clamping driving motor 4211, a spindle of the cover clamping driving motor 4211 is connected with a screw rod 4212, a nut 4213 is mounted on the screw rod 4212, and the nut 4213 is connected with a slide block 4225 and drives the slide block 4225 to slide in a corresponding central through hole. Therefore, when the cover body clamping driving motor 4211 operates, the rotating shaft drives the screw rod 4212 to rotate, and then drives the nut 4213 to horizontally move on the screw rod 4212, and the sliding block 4225 moves along with the screw rod 4212, so that the connecting rod mechanism 4224 pulls the left grip 4222 and the right grip 4223 to be released or gripped.

4. Cover breaking actuator 5

Referring to fig. 4, the cap breaking actuator 5 includes a thimble 51, a swing arm 53, and a cap breaking swing actuator. The cover breaking swing actuating mechanism comprises a thimble swing driving motor 52, the thimble swing driving motor 52 is fixedly arranged on the bottom surface of the top plate 231 of the frame 23, and an output shaft of the thimble swing driving motor extends upwards to the top plate 231. One end of the swing arm 53 is connected with an output shaft of the thimble swing driving motor 52, and the other end is fixed with the thimble 51. The tip of the thimble 51 is downward, and the tip direction of the thimble 51 and the axial direction of the output shaft of the thimble swing driving motor 52 are perpendicular to the length direction of the swing arm 53. Thus, when the bottle body rotating mechanism 32 descends, the swing arm 53 is driven to swing by the ejector pin swing driving motor 52, and the ejector pin 51 can move right above the positioning tube 321. When the bottle body rotating mechanism 32 is lifted again, the bottle cap 11 aluminum film of the digestion colorimetric tube 1 in the positioning tube 321 can be just punctured.

5. Manipulator execution assembly 6

Referring to fig. 10 and 11, the manipulator actuating assembly 6 includes a traversing mechanism 61, a longitudinally traversing mechanism 62, and a translating mechanism 63. The traversing mechanism 61 is used to perform an overall horizontal lateral translation of the translating mechanism 62, while the translating mechanism 62 is used to perform an overall horizontal longitudinal translation of the translating stage 63.

5.1 traversing mechanism 61

The traversing mechanism 61 includes a traversing belt 611, a traversing drive motor 612, a first traversing rail 613, and a second traversing rail 614. The first traversing rail 613 and the second traversing rail 614 are each disposed horizontally and laterally, and the first traversing rail 613 is formed of a plurality of parallel linear rails each having a slider 6131. One end of the longitudinal moving mechanism 62 is fixed on the sliding block 6131, the other end is provided with a roller 621, and the roller 621 is arranged on the second transverse moving guide rail 614 in a rolling way, so that the transverse movement of the longitudinal moving mechanism 62 is realized.

The traverse belt 611 is wound between a pair of traverse pulleys 615, the pair of traverse pulleys 615 having the same diameter, one traverse pulley 615 being mounted on the output shaft of the traverse driving motor 612, and the other traverse pulley being rotatably provided on a driven pulley seat and capable of rotating about its own rotation axis. The traversing belt 611 is horizontally disposed laterally by support of a pair of traversing pulleys 615. The vertical moving mechanism 62 is fixed to one side of the traversing belt 611, and the vertical moving mechanism 62 can slide along the first traversing rail 613 and the second traversing rail 614 under the driving of the traversing belt 611.

5.2 longitudinal movement mechanism 62

The longitudinal moving mechanism 62 comprises a longitudinal moving belt 622, a longitudinal moving driving motor 623, a longitudinal moving guide rail 624, a longitudinal moving platform 625 and an end plate 626, wherein the longitudinal moving platform 625 is fixedly connected with the sliding block 6131, and the roller 621 is rotatably arranged on the end plate 626. The longitudinal moving rail 624 is composed of at least three guide posts, and the guide posts are parallel and connected between the longitudinal moving platform 625 and the end plate 626, so that the longitudinal moving rail 624, the longitudinal moving platform 625 and the end plate 626 are connected into a whole. The translation stage 63 is movably disposed on the guide posts.

The longitudinal belt 622 is wound between a pair of longitudinal belt pulleys having the same diameter, one of which is mounted on the output shaft of a drive motor 623, and the other of which is rotatably provided on a driven pulley seat and is capable of rotating about its own rotation axis. The longitudinally moving belt 622 is horizontally and longitudinally arranged by the support of a pair of longitudinally moving pulleys. The translation stage 63 is fixed to one side of the longitudinal moving belt 622, and thus the translation stage 63 can slide along the guide rail 624 by the driving of the longitudinal moving belt 622.

5.3 translation stage 63

The translation stage 63 is provided with a first robot 631, a second robot 632, a first robot lift motor 6317, and a second robot lift motor 6323.

The first manipulator 631 includes a guide post 6311 and a rack 6312, where the guide post 6311 and the rack 6312 are both generally cylindrical, and the upper and lower ends of the guide post 6311 and the rack 6312 are fixedly connected together through a connecting seat 6313. The translation stage 63 is provided with a plurality of vertically arranged through holes, and the guide post 6311 and the rack 6312 are respectively sleeved in one through hole and can move up and down along the through holes. A suction pipe 6314 and a stirring motor (not shown) are installed on a connecting seat 6313 at the lower end, and an output shaft of the stirring motor extends downwards and is connected with a stirring rod 6315, wherein the stirring rod 6315 is lower than the suction pipe 6314. The suction tube 6314 is connected to a syringe device, and the stirring rod 6315 is used for stirring the liquid sample, sucking the liquid sample and adding the liquid sample into the digestion cuvette bottle body 12 in the positioning tube 321.

The second robot 632 is substantially identical in structure to the first robot 631, and also includes a guide post 6321 and a rack 6322. The guide post 6321 and the rack 6322 are both generally cylindrical, and the upper and lower ends of the guide post 6321 and the rack 6322 are fixedly connected into a whole through a connecting seat 6327. The guide post 6321 and the rack 6322 are respectively sleeved in a through hole and can move up and down along the through hole. A cylinder 6325 is mounted on the connection block 6327 at the lower end. The execution end of the air cylinder 6325 is provided with a clamp 6326, and the air cylinder 6325 drives the clamp 6326 to execute clamping action for clamping the test tube rack, digestion colorimetric tube rack or digestion colorimetric tube rack and placing the test tube rack or digestion colorimetric tube rack into a corresponding position.

The output shaft of the first robot lift motor 6317 is coupled to a spline shaft 6316 disposed along the length of the rail 624, and the output shaft of the second robot lift motor 6323 is coupled to a spline shaft 6324 disposed along the length of the rail 624. Spline shaft 6324 and spline shaft 6316 are supported and rotated at both ends by bearings on longitudinally moving platform 625 and end plates 626. The spline shaft 6316 is engaged with the rack gear 6312, and the spline shaft 6324 and the rack gear 6322 are engaged with each other through gears provided on the spline shaft, so that when the first manipulator lift motor 6317 or the second manipulator lift motor 6323 is operated, the spline shaft is driven to rotate, and the rack gear is further operated up and down, and the first manipulator 631 or the second manipulator 632 is also moved up and down accordingly.

6. Heating actuator assembly 7

Referring to fig. 17, the heating execution assembly 7 mainly includes a positioning frame 73 for placing and positioning the digestion cuvette frame, and an electric heating block 74 for heating the digestion cuvette in the positioning frame 73; the positioning frame 73 is rotatably arranged and swings around a horizontal axis under the driving of a positioning frame swinging executing mechanism; the electric heating block 74 is arranged below the positioning frame 73, and is driven to intermittently lift by a heating block lifting mechanism.

6.1 cabin 71 and roof 72

The heating execution assembly 7 has a cabin 71, the cabin 71 is arranged on the cabinet 21, the structure of the heating execution assembly is a square cabinet, the square cabinet is provided with a hollow cavity for placing a plurality of digestion colorimetric tube racks, and the top of the cabin 71 is provided with an opening. The chamber 71 serves as a main structure of the entire heating execution assembly, and other components are provided thereon or therein.

The top cover 72 is used to selectively close the top opening of the cabin 71. In the present embodiment, sliding rails 711 are disposed on the left and right side end surfaces of the top of the cabin 71, and the top cover 72 is supported by the sliding rails 711 and is driven by a sliding actuator 721 to rotate along the sliding rails 711, so as to selectively close the opening of the top of the cabin 71. Specifically, the slide actuator 721 includes a top cover drive motor 7211 and a top cover drive belt 7213 wound between the drive pulley 7212 and the driven pulley 7214. The top cover driving motor 7211 is fixedly arranged outside the cabin 71; the driving pulley 7212 is mounted on the output shaft of the top cover driving motor 7211, and the driven pulley 7214 is rotatably provided at a driven pulley seat on the cabin 71, so that the top cover driving belt 7213 is horizontally arranged along the length direction of the sliding rail 711. The bottom of the top cover 72 is fixedly provided with a rack 722 arranged along the length direction of a slide rail 711, and the driven wheel 7214 is coaxially fixed with a gear engaged with the rack 722. When the top cover driving motor 7211 rotates, the driving wheel 7212 is driven to rotate, the driven wheel 7214 is driven to rotate through the transmission of the top cover transmission belt 7213, and therefore the gear rotates to roll on the rack 722, and the top cover 72 is driven to translate.

6.2 positioning frame 73 and positioning frame swing actuator 731

Referring to fig. 21, the positioning frame 73 is in a square frame shape, and is used for placing the digestion colorimetric tube stand and driving the digestion colorimetric tube stand to swing. The number of the positioning frames 73 may be plural, and the positioning frames 73 are two in this embodiment, so as to process the plurality of groups of digestion colorimetric tube holders.

The positioning frame 73 is arranged in the cavity of the cabin 71, and two ends of the positioning frame are provided with coaxially arranged rotating shafts. Bearings are correspondingly arranged on the front and rear side walls of the corresponding cabin 71, and in this embodiment, the bearings are sliding bearings with high temperature resistance due to long-term high temperature environment. The rotation shafts of the positioning frame 73 are supported by slide bearings on the front and rear side walls of the cabin 71, respectively, and are driven to swing around shafts by a positioning frame swing actuator 731. The positioning frame swing executing mechanism 731 comprises a positioning frame driving motor 7311 and a reduction gear set 7312, and an output shaft of the positioning frame driving motor 7311 is connected with and drives the two positioning frames 73 to swing through the reduction gear set 7312. Specifically, the output shaft of the positioning frame driving motor 7311 is provided with a pinion, two sides of the pinion are respectively engaged with a middle gear, each middle gear is engaged with a large gear, the rotating shaft of the large gear is coaxially connected with the shaft of the positioning frame 73 to drive, and the gears form a reduction gear set 7312. Also, since a high temperature environment exists in the cabin 71, a thermal insulation layer is provided at the junction of the shaft of the positioning frame 73 and the reduction gear set 7312 (i.e., the shaft of the large gear).

6.3 electric heating Block 4 and heating Block lifting mechanism 41

Referring to fig. 21, an electric heating block 74 is used to heat the test tubes on the rack. An electric heating block 74 is also provided in the cabin 71 and below the positioning frame 73. The electric heating block 74 is provided with 4 through holes 742 and a temperature sensor 743, and heating rods are inserted into the through holes 742.

The electric heating block 74 is intermittently lifted by a heating block lifting mechanism 741. The heating block lifting mechanism 741 is a screw lifter and comprises a heating block driving motor 7412, a decelerator 7413, a screw 7414 and a nut 7411. When the electric heating device works, the heating block driving motor 7412 is used for driving the worm in the speed reducer 7413 to rotate, the worm is meshed with the worm wheel, the worm wheel is meshed with the screw rod 7414, so that the screw rod 7414 is driven to rotate, the nut 7411 is sleeved on the screw rod 7414 and is fixed with the electric heating block 74, and the nut 7411 moves in a straight line, so that the electric heating block 74 can move up and down.

6.4 radiating mechanism

Since the chamber of the cabin 71 is heated and then is at a high temperature, a heat dissipation mechanism is also provided in this embodiment. The front and rear side walls of the cabin 71 with bearings are further provided with two holes 714, which are respectively corresponding to the two positioning frames 73, and one hole (blocked by the fan 712 in the figure) is formed in the middle of the front side wall.

The inner side of the hole 714 is provided with a vertically arranged track, and a cabin door 713 is arranged on the track, and the cabin door 713 moves up and down along the track, so that the cavity of the cabin body 71 can be selectively closed or opened. In addition, a fan 712 is provided at the opening of the front sidewall.

The lifting table 7411 is connected to each of the door 713, and thus the door 713 is lifted by the electric heating block 74 when the lifting table 7411 is lifted, and the cavity of the cabin 71 is closed in a lifted state, thereby improving the heating efficiency. And when the air conditioner descends, the opening is opened, and the fan 712 performs forced air exhaust and heat dissipation.

It should be noted that in the above-described structural arrangement, the rail at the opening is not only the lifting rail of the hatch 713, but also indirectly constitutes the rail when the lifting table 7411 is lifted.

7. Light-splitting detection assembly 8

Referring to fig. 22 to 25, the spectroscopic detection module 8 includes a mounting table 81, and the mounting table 81 has a rectangular parallelepiped shape, on which a plurality of mounting positions are provided, forming a mounting platform for other modules.

The mounting table 81 is provided with a test tube slot 811 for placing a digestion cuvette, one side of the test tube slot 811 is provided with a light source emitter 812, the opposite side is provided with a light source receiver 813, and light from the light source emitter 812 enters the light source receiver 813 through the test tube slot 811, and the structures of the light source emitter 812 and the light source receiver 813 are conventional technical means for those skilled in the art, so that the description is omitted herein. A barcode scanner 816 for reading the barcode on the digestion cuvette in the test tube well 811 is further provided on one side of the test tube well 811.

Unlike the prior art, the cuvette slot 811 includes a circular tubular fixed support 8111, and windows 81111 and 81112 are formed on both sides of the fixed support 8111, the light source emitter 812 faces one side window 81111, and the light source receiver 813 faces the other side window 81112, thereby forming an optical path channel.

The upper bracket 8112 and the lower bracket 8113 are mounted at the upper and lower ends of the fixed support 8111 in sections through bearings 815 to achieve rotatable connection. Wherein the upper bracket 8112 is fixed to the outer ring of one bearing 815, the lower bracket 8113 is fixed to the inner ring of the other bearing 815, and the fixed support 8111 is fixed to the other part of both bearings 815.

The upper support 8112 is located at the upper portion of the lower support 8113 and both are coaxial, i.e. the rotational axes of the upper support 8112 and the lower support 8113 coincide.

The lower bracket 8113 is provided with a groove 81131 which can just accommodate the bottom of the digestion colorimetric tube to be tested.

The upper support 8112 is ring-shaped, and at least three spring plates 8114 are rotationally symmetrically arranged thereon, and in this embodiment, the spring plates are three. One end of the spring piece 8114 is fixed with the top end of the upper bracket 8112, and the other end of the spring piece 8114 is obliquely arranged in the upper bracket 8112 and suspended, so that a horn mouth for inserting a digestion colorimetric tube is enclosed, and when the digestion colorimetric tube to be tested is inserted into the upper bracket 8112, the spring pieces 8114 are extruded to clamp the digestion colorimetric tube.

In addition, a test tube rotation driving motor 814 is further disposed on the mounting table 81, and the test tube rotation driving motor 814 drives the upper bracket 8112 and the lower bracket 8113 to rotate synchronously through a belt transmission structure.

Specifically, the test tube rotary driving motor 814 is a double-shaft motor, two output shafts of the double-shaft motor are respectively provided with a driving wheel 8141, the upper bracket 8112 and the lower bracket 8113 are respectively provided with a driven wheel 8142, and two belts 8143 are correspondingly wound between a pair of the driving wheel 8141 and the driven wheel 8142 one by one and are tensioned. By controlling the diameter ratio of the driving wheel 8141 to the driven wheel 8142, the upper bracket 8112 and the lower bracket 8113 rotate coaxially and at the same rotation speed, so that the digestion colorimetric tube is driven to rotate.

8. Controller for controlling a power supply

The controller is used for controlling and connecting the bottle lifting mechanism, the bottle clamping executing mechanism, the rotary executing mechanism, the cover swinging mechanism, the cover clamping executing mechanism, the overturning executing mechanism, the cover breaking swinging executing mechanism, the heating executing assembly, the light splitting detecting assembly, the first manipulator, the second manipulator, the manipulator lifting mechanism, the transverse moving mechanism and the longitudinal moving mechanism. The controller will be described below in connection with the principle of operation and the logic of operation of the detector. In addition, the controller is also connected with a man-machine interaction module and is used for communicating information between the controller and the outside.

Description of working principles and action logic

With the above device structure, the working principle and specific action steps of the embodiment of the present invention are described in detail below:

1. pretreatment of digestion colorimetric cylinder

A. Digestion colorimetric tube before clamping and processing

The traverse drive motor 612 and the longitudinal drive motor 623 are started, the translation stage 63 is controlled to move, the second manipulator 632 is moved to the digestion cuvette station 213, and the digestion cuvette 1 to be clamped on the digestion cuvette rack 214 is aligned.

And then the second manipulator lifting motor 6323 is started to control the second manipulator 632 to move downwards, and the cylinder is started to drive the upper clamp to clamp the digestion cuvette 1 after the second manipulator is in place.

B. Placing digestion colorimetric tube

At this time, as shown in fig. 12, the bottle body rotating mechanism 32 is in a raised state, the cap tilting mechanism 42 is in a first limit position, and the left hand 4222 and the right hand 4223 of the cap holder 422 are in an opened state.

The second manipulator lift motor 6323 is started to lift the second manipulator 632, and then the traverse drive motor 612 and the vertical movement drive motor 623 are started to control the movement of the translation stage 63, so that the second manipulator 632 is moved to above the corresponding positioning tube 321 via the opening between the left hand 4222 and the right hand 4223.

It should be noted here that in the preferred embodiment the path of the second manipulator 632 before it moves over the positioning tube 321 passes through the flare between the left hand 4222 and the right hand 4223, no matter where the digestion cuvette holder is placed. This is because: on the one hand, although the movement path of the manipulator can be made shorter by swinging the cover tilting mechanism 42 to the second limit position, the swinging action is increased to be not lost. On the other hand, when the cap clamp 422 is opened after the cap screwing operation is completed, the cap 11 is opened without adding any additional operation. The manipulator is thus selected to access the designated location through the opening of the cap holder 422.

And the second manipulator lifting motor 6323 is started, the second manipulator 632 is controlled to move downwards, the cylinder is started after the second manipulator lifting motor is in place to drive the upper clamp to loosen the digestion cuvette 1, the digestion cuvette 1 enters the positioning tube 321, the bottle body clamping driving motor 3241 is started, the left gripper 3222 and the right gripper 3223 are controlled to grip, and the digestion cuvette 1 is fixed in the positioning tube 321.

The second manipulator lifting motor 6323 is started to control the second manipulator 632 to lift, and then the traversing driving motor 612 and the longitudinal-moving driving motor 623 are started to control the translation stage 63 to move to the position of the digestion cuvette to be grasped next and wait for the next round of operation.

C. Puncture bottle cap aluminium film

As shown in fig. 13, the bottle lifting drive motor 312 is started to control the bottle rotating mechanism 32 to descend.

The ejector pin swing driving motor 52 of the cover breaking executing mechanism 5 is started, the swing arm 53 is driven to swing, and the ejector pin 51 moves to the position right above the positioning tube 321.

The bottle lifting driving motor 312 is started to control the bottle rotating mechanism 32 to rise again, so that the bottle cap 11 aluminum film of the digestion cuvette 1 in the positioning tube 321 can be just punctured, and solid solute in the aluminum film is exposed (the solid solute is in a block shape and combined with the inner wall of the bottle cap 11, and cannot be spilled during overturning).

The thimble swing driving motor 52 is started to drive the swing arm 53 to swing back to the original position, and the next round of operation is waited.

D. Rotary cover

As shown in fig. 14, the bottle lifting drive motor 312 is activated to raise the bottle body rotating mechanism 32 until its upper cap 11 is positioned between the left grip 4222 and the right grip 4223.

The cover body clamping driving motor 4211 is started to control the left grip 4222 and the right grip 4223 to grip the bottle cap 12.

The bottle body rotation driving motor 3233 is started, the positioning tube 321 and the bottle body clamp 322 are controlled to rotate, the bottle body 12 is driven to rotate, and meanwhile, the lifting driving motor 312 slowly moves downwards, so that the bottle cap 11 is separated from the bottle cap body 12.

E. Turnover bottle cap

As shown in fig. 15, the cover swing drive motor 415 is activated to drive the cover tilting mechanism 42 to the second limit position.

The cover body overturning driving motor 4233 is started to drive the rotating structural member 4231 to rotate 180 degrees, and the bottle cap 11 gripped by the left hand 4222 and the right hand 4223 also rotates 180 degrees along with the rotation of the bottle cap, so that overturning is completed.

F. Sucking water sample

After the cover body turnover mechanism 42 is removed, the transverse moving driving motor 612 and the longitudinal moving driving motor 623 are started, the translation stage 63 is controlled to move, the first manipulator 631 is moved to the position above the water sample test tube station 211, then the first manipulator lifting motor 6317 is started, the first manipulator 631 is controlled to descend, the suction tube 6314 and the stirring rod 6315 enter the test tube filled with the water sample on the test tube rack 212, the stirring rod 6315 stirs the water sample, the suction tube 6314 sucks the water sample, and stirring is stopped after the water sample is sucked.

G. Injecting water sample and cleaning first manipulator

The transverse movement driving motor 612 and the longitudinal movement driving motor 623 are started, the translation stage 63 is controlled to move, the first manipulator 631 is moved above the positioning tube 321, then the first manipulator lifting motor 6317 is started, the first manipulator 631 is controlled to descend, and after the first manipulator 631 is in place, the suction tube 6314 injects water sample into the bottle body 12 in the positioning tube 321.

The first robot lift motor 6317 is started to control the first robot 631 to lift, then the traversing drive motor 612 and the longitudinal movement drive motor 623 are started to control the translation stage 63 to move, the first robot 631 is moved above the robot cleaning station 215, then the first robot lift motor 6317 is started to control the first robot 631 to descend for cleaning, and then the first robot is lifted again to wait for the next round of work.

H. Screw cap

As shown in fig. 16, the cap swing driving motor 415 is started to drive the cap tilting mechanism 42 to move to the first limit position, and the bottle cap 11 is located above the bottle body 12.

The bottle body rotation driving motor 3233 is started, the positioning tube 321 and the bottle body clamp 322 are controlled to rotate, the bottle body 12 is driven to rotate, and meanwhile, the lifting driving motor 312 slowly moves upwards, so that the bottle cap 11 and the bottle cap body 12 are screwed tightly.

The cover body clamping driving motor 4211 is started to control the left grip 4222 and the right grip 4223 to open and release the bottle cap 12.

I. Oscillation digestion colorimetric tube

The bottle lifting driving motor 312 is started, and the bottle rotating mechanism 32 and the digestion colorimetric tube 1 thereon are driven to periodically oscillate up and down by the turntable 316 and the connecting rod 315. The water sample in the oscillation digestion colorimetric tube 1 contacts with the solute of the bottle cap 12 and is dissolved, and the oscillation is stopped after the dissolution is completed.

J. Digestion colorimetric tube after placement treatment

The bottle lifting drive motor 312 is activated to raise the bottle rotating mechanism 32.

The bottle clamping drive motor 3241 is activated to control the opening of the left and right grips 3222, 3223.

The traverse drive motor 612 and the vertical movement drive motor 623 are started to control the translation stage 63 to move, and the second manipulator 632 is moved to just above the positioning tube 321.

The second manipulator lift motor 6323 is started to lift the second manipulator 632, and then the traversing drive motor 612 and the longitudinal-movement drive motor 623 are started to control the translation stage 63 to move to the digestion cuvette station 213.

The second manipulator lifting motor 6323 is started, the second manipulator 632 is controlled to move downwards, the cylinder is started after the second manipulator lifting motor is in place to drive the upper clamp to loosen the digestion cuvette 1, the digestion cuvette 1 enters the digestion cuvette rack 214, the traversing driving motor 612 and the longitudinal moving driving motor 623 are started, the translation table 63 is controlled to move to the position of the next digestion cuvette to be grasped, and the next round of operation is waited.

2. Digestion treatment

A. Placing digestion colorimetric tube rack

The traverse drive motor 612 and the longitudinal drive motor 623 are activated to control the translation stage 63 to move and move the second manipulator 632 to the digestion cuvette station 213.

The second manipulator lift motor 6323 is started to control the second manipulator 632 to move downwards, and after the second manipulator lift motor is in place, the cylinder is started to drive the upper clamp to clamp the digestion colorimetric tube rack 214.

The second robot lift motor 6323 is started to lift the second robot 632, and then the traversing drive motor 612 and the longitudinal-moving drive motor 623 are started to control the translation stage 63 to move above the thermal actuator 7.

At the same time, the cap drive motor 7211 is activated to control the translation of the cap 72, exposing the underlying positioning frame 73.

The second manipulator lifting motor 6323 is started to control the second manipulator 632 to move downwards, and after the second manipulator lifting motor is in place, the cylinder is started to drive the upper clamp to loosen the digestion colorimetric tube rack 214, and the digestion colorimetric tube rack 214 enters the positioning frame 73 in the heating executing assembly 7.

The traverse drive motor 612 and the vertical movement drive motor 623 are started to control the translation stage 63 to move, waiting for the next round of work.

B. Heating digestion

The heating block drive motor 7412 is activated to drive the electric heating block 74 up, with concomitant lifting of the hatch 714.

At the same time, the top cover driving motor 7211 is started to control the top cover 72 to translate, and the cabin 71 is closed (an optional step).

The electric heating rods in the electric heating blocks 74 heat the digestion colorimetric tube stand 214 in the positioning frame 73 at a constant temperature of 165 ℃.

When the set heating time period is reached, the heating is stopped, the heating block driving motor 7412 is started, the electric heating block 74 is driven to descend, and the hatch 714 is lowered.

The fan 712 is started to exhaust and dissipate heat.

When the digestion colorimetric tube rack 214 is lowered to a specified temperature, the top cover driving motor 7211 is started to control the top cover 72 to translate, so that the positioning frame 73 below the digestion colorimetric tube rack is exposed; the positioning frame driving motor 7311 is started, and the positioning frame 73 is controlled to swing by 90 degrees, so that the digestion colorimetric tube stand 214 and the digestion colorimetric tube 1 swing synchronously. The purpose is that due to the high temperature of the digestion process, substances such as moisture in the digestion colorimetric tube 1 are separated from the liquid level in a boiling or sublimating mode, and then are condensed on the inner wall of the bottle body and the inner wall of the bottle cap of the digestion colorimetric tube 1. The substances can be returned to the water sample again by swinging left and right by 90 degrees, so that the error is reduced.

C. Reset digestion colorimetric tube stand

After the digestion cuvette frame 214 has fallen to a certain temperature.

The second robot lift motor 6323 is started to lift the second robot 632, and then the traversing drive motor 612 and the longitudinal-moving drive motor 623 are started to control the translation stage 63 to move above the heating execution assembly 7.

The second manipulator lift motor 6323 is activated to control the second manipulator 632 to move downward, and after in place, the actuating cylinder drives the upper clamp to unclamp the digestion cuvette frame 214.

3. Spectroscopic detection

A. Placing digestion colorimetric tube

The second manipulator lifting motor 6323 is started, the second manipulator 632 is controlled to move downwards, and after the second manipulator lifting motor is in place, the cylinder is started to drive the upper clamp to clamp the digestion cuvette 1.

The second robot lift motor 6323 is started to lift the second robot 632, and then the traversing drive motor 612 and the longitudinal-moving drive motor 623 are started to control the translation stage 63 to move above the spectroscopic detection unit 8.

The second manipulator lifting motor 6323 is started, the second manipulator 632 is controlled to move downwards, and after the second manipulator lifting motor is in place, the cylinder is started to drive the upper clamp to loosen the digestion cuvette 1, and the digestion cuvette 1 is placed in the test tube groove 811.

B. Spectroscopic detection

The light source emitter 812 and the light source receiver 813 are started to perform spectrophotometry detection on the digestion cuvette 1 in the cuvette tank 811.

After the one-time spectrophotometry is completed, the test tube rotation driving motor 814 drives the digestion cuvette 1 in the test tube housing 811 to rotate by a set angle according to a set degree, and then the spectrophotometry is performed again. And (5) until the set spectroscopic detection times are completed.

The operation steps, the action executing mechanisms and the on-off time nodes of the electronic equipment of the device are completely controlled by the controller.

While the intent and embodiments of the present invention have been described in detail by way of examples, those skilled in the art to which the invention pertains will appreciate that the foregoing examples are merely illustrative of the preferred embodiments of the present invention, and that it is not intended to list all embodiments individually and that any implementation embodying the technical scheme of the present invention is within the scope of the present invention.

Claims

1. The utility model provides a water sample automated inspection appearance, relates to a clear up color comparison tube for water sample detects, should clear up the bottle lid of color comparison tube upper and lower end all can with the bottleneck screw thread sealing connection of its bottle, and clear up the one end of bottle lid and have solid solute through the aluminium foil is sealed under the color comparison tube state of leaving the factory, its characterized in that, water sample automated inspection appearance includes:

2. An automatic water sample detector according to claim 1, wherein: the heating execution assembly comprises a positioning frame for placing and positioning the digestion colorimetric tube rack and an electric heating block for heating the digestion colorimetric tube in the positioning frame; the positioning frame is rotatably arranged and swings around a horizontal axis under the driving of a positioning frame swinging executing mechanism; the electric heating block is arranged below the positioning frame and driven by a heating block lifting mechanism to intermittently lift.

3. An automatic water sample detector according to claim 2, wherein: the heating execution assembly further comprises a cabin body with an opening at the top and a top cover capable of selectively closing the opening at the top of the cabin body; the positioning frame is arranged in the cabin body, and shafts supported by bearings on the side wall of the cabin body are respectively arranged at two ends of the positioning frame; the two opposite side walls of the cabin body are also provided with holes, a cabin door which rises and falls along with the rising and falling of the electric heating block is arranged at the holes, and a fan is arranged at the hole of at least one of the two side walls; the controller is controlled and connected with the heating block lifting mechanism, the fan and the positioning frame swing executing mechanism; the top cover is supported by a sliding rail arranged at the top of the cabin body and driven by a sliding executing mechanism to rotate along the sliding rail, so that an opening at the top of the cabin body can be selectively closed; the sliding actuating mechanism comprises a top cover driving motor and a top cover driving belt wound between a pair of driving wheels and driven wheels; the top cover driving motor is fixedly arranged on the outer side of the cabin body; the driving wheel is arranged on an output shaft of the top cover driving motor, and the driven wheel is rotatably arranged at a driven wheel seat on the cabin body, so that the top cover transmission belt is horizontally arranged along the length direction of the sliding rail; the bottom of the top cover is fixedly provided with a rack along the length direction of the sliding rail, and the driven wheel is coaxially fixed with a gear meshed with the rack; the positioning frame swing actuating mechanism comprises a positioning frame driving motor and a reduction gear set, and an output shaft of the positioning frame driving motor is connected with the heating frame through the reduction gear set and drives the heating frame to swing; a heat insulation layer is arranged at the joint of the shaft of the heating frame and the reduction gear set; the electric heating block is provided with a plurality of through holes and a temperature sensor, and a heating rod is arranged in the through holes in a penetrating way; the heating block lifting mechanism comprises a heating block driving motor, a speed reducer, a screw rod and a nut; the speed reducer is connected with the output shaft of the heating block driving motor and the screw rod, and the nut is sleeved on the screw rod and is fixed with the electric heating block.

4. An automatic water sample detector according to claim 1, wherein: the light splitting detection assembly comprises a test tube groove for placing the digestion colorimetric tube, wherein a light source emitter is arranged on one side of the test tube groove, and a light source receiver is arranged on the opposite side of the test tube groove; the test tube groove comprises a tubular fixed support, and windows are formed in two sides of the fixed support, so that light from the light source emitter enters the light source receiver through the test tube groove; the upper end and the lower end of the fixed support are respectively rotatably provided with an upper bracket and a lower bracket through bearings, and the upper bracket is positioned at the upper part of the lower bracket and is coaxial with the lower bracket; the lower bracket is provided with a groove which can just accommodate the bottom of the test tube to be tested; the upper bracket is annular, and is provided with a clamping piece for clamping the digestion colorimetric tube; in addition, the light-splitting detection assembly further comprises a digestion colorimetric tube rotation driving mechanism for driving the upper bracket and the lower bracket to synchronously rotate.

5. The automatic water sample detector according to claim 4, wherein: the clamping piece comprises at least three spring pieces which are rotationally symmetrical and arranged on the upper bracket, one end of each spring piece is fixed with the top end of the upper bracket, and the other end of each spring piece is obliquely arranged towards the inside of the upper bracket and is suspended, so that a test tube to be tested, which is inserted into the upper bracket, is clamped; the digestion colorimetric tube rotary driving mechanism comprises a digestion colorimetric tube rotary double-shaft motor, driving wheels are mounted on two output shafts of the digestion colorimetric tube rotary double-shaft motor, driven wheels are arranged on the upper support and the lower support, and two belts are wound between the pair of driving wheels and the driven wheels in a one-to-one correspondence mode and are tensioned.

6. An automatic water sample detector according to claim 1, wherein: the bottle body clamp and the bottle cap clamp comprise a gripper bracket, a left gripper and a right gripper which are symmetrically hinged on the gripper bracket, and a connecting rod mechanism for driving the left gripper and the right gripper to be released or gripped; the connecting rod mechanism is connected with a sliding block and moves along with the movement of the sliding block; the bottle clamping executing mechanism comprises a bottle clamping driving motor, and a nut on a screw rod connected with the bottle clamping driving motor is fixedly connected with a sliding block of the bottle clamp, so that the sliding block of the bottle clamp is driven to slide in a corresponding guide rail; two windows are symmetrically formed in the side wall of the positioning tube, and the left and right grippers of the bottle clamp are arranged at the windows; the cover body clamping executing mechanism comprises a cover body clamping driving motor, and a nut on a screw rod connected with the cover body clamping driving motor is fixedly connected with a sliding block of the bottle cap clamp, so that the sliding block of the bottle cap clamp is driven to slide in a corresponding guide rail.

7. The automatic water sample detector according to claim 6, wherein: the cover swing mechanism comprises a cover turntable, a cover swing driving motor, a bottom plate, a first vertical plate and a second vertical plate, wherein the cover turntable, the cover swing driving motor, the bottom plate and the first vertical plate and the second vertical plate are rotatably arranged; the overturning executing mechanism comprises a rotary structural member and an overturning driving mechanism for driving the rotary structural member, wherein the bottle cap clamp and the cover body clamping executing mechanism are installed in the rotary structural member, and the left grip and the right grip of the bottle cap clamp are symmetrically arranged on the axis of the rotary structural member.

8. An automatic water sample detector according to claim 7, wherein: the first vertical plate and the second vertical plate are respectively provided with a round hole, the round holes are provided with bearings, the two bearings are coaxially arranged, and the inner rings are sleeved on the rotary structural member; the cover body overturning driven wheel is arranged at the part of the rotary structural member between the first vertical plate and the second vertical plate, the overturning driving mechanism comprises a cover body overturning driving motor, a cover body overturning driving wheel is arranged on an output shaft of the cover body overturning driving motor, and a cover body overturning belt is wound between the cover body overturning driving wheel and the cover body overturning driven wheel and is tensioned; the rotary structural member is provided with a central through hole along the rotation axis thereof, and the central through hole forms a guide rail of the upper sliding block of the bottle cap clamp.

9. An automatic water sample detector according to claim 1, wherein: the bottle lifting mechanism comprises a plurality of guide posts, connecting rods, a turntable and a turntable driving mechanism for driving the turntable to rotate on a vertical plane, wherein the guide posts, the connecting rods and the turntable are vertically arranged; the bottle body rotating mechanism is movably arranged on the guide post, one end of the connecting rod is hinged with the outer edge of the turntable, and the other end of the connecting rod is hinged with the bottle body rotating mechanism; the rotary executing mechanism comprises a lifting plate, a bottle turntable and a bottle rotary driving motor, wherein the lifting plate is movably arranged on the guide post, and the connecting rod is hinged with the lifting plate; the bottle rotary table is rotatably arranged on the lifting plate, and the bottle rotary driving motor drives the bottle rotary table to rotate through a belt transmission structure; the axis of the bottle turntable is vertically arranged, and the positioning tube is fixedly arranged on the axis of the bottle turntable; the rotary table driving mechanism comprises a bottle lifting driving motor, and the bottle lifting driving motor drives the rotary table to rotate through belt transmission.

10. An automatic water sample detector according to claim 9, wherein: