CN216816534U - Intelligent heavy metal detector - Google Patents

Abstract

The utility model discloses an intelligent heavy metal detector which comprises a central control module, a sample adding and weighing mechanism, a vibration rotating mechanism, a lifting detection head mechanism, a detection disc mechanism and a pumping mechanism, wherein the central control module is connected with the sample adding and weighing mechanism; the sample adding and weighing mechanism is used for adding a to-be-tested agent into the reagent container and weighing the reagent container after sample adding is finished; the oscillation rotating mechanism is internally provided with a plurality of reagent containers and is used for enabling the reagent containers to rotate to the positions corresponding to the sample adding and weighing mechanism in sequence so as to finish the respective sample adding of the reagent containers; the oscillation rotating mechanism is also used for oscillating and standing the reagents in the plurality of reagent containers after sample adding is finished; the pumping mechanism is used for pumping the processed reagent in the reagent container to the detection disc mechanism; the lifting detection head mechanism is matched with the detection disc mechanism and is used for finishing heavy metal detection of the reagent and outputting a detection result through the central control module; the pumping mechanism is also used to draw out the reagent after the test is completed.

Description

Intelligent heavy metal detector

Technical Field

The utility model relates to the field of heavy metal detection, in particular to an intelligent heavy metal detector.

Background

When the heavy metal detector works, the electrode tip of the collecting part needs to extend into the analysis pool so as to detect the reagent in the analysis pool. At present, the degree of automation of heavy metal detector is low, needs a large amount of manual operation, and the operation is more troublesome, and is inefficient, and the maloperation appears easily during manual operation, leads to detecting failure or detects the precision inadequately.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an intelligent heavy metal detector which comprises a shell, a central control module, a sample adding and weighing mechanism, a vibration rotating mechanism, a lifting detection head mechanism, a detection disc mechanism and a pumping mechanism, wherein the central control module, the sample adding and weighing mechanism, the vibration rotating mechanism, the lifting detection head mechanism, the detection disc mechanism and the pumping mechanism are arranged in the shell;

the central control module is used for controlling the intelligent work of the intelligent heavy metal detector;

the shell is provided with a feeding port, the feeding port corresponds to an opening at the upper end of the sample adding and weighing mechanism, the sample adding and weighing mechanism is used for adding a to-be-tested agent into a reagent container in the shell and weighing the reagent container after sample adding is finished;

the oscillation rotating mechanism is used for enabling the plurality of reagent containers to rotate to positions corresponding to the sample adding weighing mechanism in sequence so as to finish respective sample adding of the plurality of reagent containers;

the oscillation rotating mechanism is also used for oscillating and standing the reagents in the multiple reagent containers after sample adding is finished;

the pumping mechanism is used for pumping the processed reagent in the reagent container to the detection disc mechanism;

the lifting detection head mechanism is matched with the detection disc mechanism and is used for finishing heavy metal detection of the reagent and outputting a detection result through the central control module;

the pumping mechanism is also used for pumping out the reagent after the detection is finished.

In some embodiments, the sample-adding and weighing mechanism comprises a vertical frame, a linear module, a weighing sensor, a connecting plate, a container positioning part and a material-adding bin;

the vertical frame is fixed on the bottom plate of the shell;

the straight line module is arranged on the side surface of the vertical frame, the connecting plate is arranged on the straight line module, and the connecting plate can move up and down under the control of the straight line module;

the weighing sensor is fixedly arranged on the connecting plate, and the container positioning piece is arranged above the weighing sensor;

the feeding bin is arranged at the top end of the vertical frame and is of a funnel-shaped structure, the upper end opening of the feeding bin is positioned at the feeding port on the shell, and the lower end opening of the feeding bin faces the container positioning piece;

the container positioning part is used for enabling the sample container to be placed on the container positioning part and limiting the position of the sample container, and the container positioning part can move up and down along with the connecting plate.

In some embodiments, the sample adding and weighing mechanism further comprises a push-pull plate and an electromagnetic push-pull valve, the push-pull plate is arranged beside the feeding bin and used for opening or closing the feeding port of the outer shell under the control of the electromagnetic push-pull valve; and the inner side of the container positioning piece is also provided with a spacer.

In some embodiments, the oscillating and rotating mechanism includes an oscillating module and a rotating module;

the oscillation module comprises a first motor, a first rotating shaft, a plurality of eccentric shafts, a base, a fixed connecting body and a movable connecting plate;

the base is fixed on the bottom plate of the shell;

the rotating module comprises a second motor, a second rotating shaft and a rotating tray, the second motor is used for controlling the rotating tray to rotate through the second rotating shaft, and the rotating module is integrally positioned above the movable connecting plate;

the first motor is used for controlling a first rotating shaft to rotate, and the first rotating shaft is fixedly connected with the movable connecting plate;

the fixed connecting body is fixedly connected with the base, the fixed connecting body and the base are both of hollow structures, and a formed hollow area is used for allowing the integral structure of the first motor, the first rotating shaft and the movable connecting plate to penetrate through and providing a certain movement space;

the upper end and the lower end of the eccentric shafts are respectively fixedly connected with the movable connecting plate and the fixed connecting body, and the eccentric shafts are used for converting the rotation of the first rotating shaft into rotary oscillating motion, so that the movable connecting plate and the rotating module above the movable connecting plate are driven to integrally do the rotary oscillating motion.

In some embodiments, the rotating module further comprises a mounting bracket, a rotating partition plate, a tray support, and a limit switch;

the bottom end of the mounting frame is fixed on the movable connecting plate, the second motor is fixed on the mounting frame, the second rotating shaft is fixedly connected with the rotary dividing plate, the tray supporting piece is fixed above the rotary dividing plate and fixedly connected with the rotary tray, and the limit switch is arranged on the mounting frame and positioned beside the rotary dividing plate;

a plurality of container accommodating parts are arranged on the rotary tray along the circumferential direction and used for accommodating reagent containers; the rotating partition plate is provided with a plurality of triggering parts along the circumferential direction and used for triggering the limit switches, so that when the rotating partition plate rotates for a certain angle and triggers the limit switches, the second motor stops working, and the rotating angle of the rotating tray is controlled.

In some embodiments, the rotating module further comprises a container support plate, the container support plate is a hollow structure, the hollow area of the container support plate is used for arranging the mounting rack and related structures, the container support plate is located below the rotating tray, and the container support plate does not rotate along with the rotating tray;

the container supporting plate is provided with a through hole, the size of the through hole enables the reagent containers in the container accommodating part to pass through, and each reagent container can reach the through hole through the rotation of the rotating tray;

the through hole is positioned between the lower port of the feeding bin and the container positioning part, so that the reagent container reaching the through hole can be matched with the sample feeding and weighing mechanism to finish sample feeding and weighing.

In some embodiments, the test tray mechanism includes a plurality of analysis cells therein;

the lifting detection head mechanism comprises a lifting module and a detection head module;

the lifting module comprises a straight frame, a cross beam, a first stepping motor, a lifting gear and a rack;

the straight frame is fixed on the bottom plate of the shell;

a sliding rail structure is formed on the straight frame, and a sliding structure matched with the sliding rail structure is formed at one end of the cross beam;

the first stepping motor and the lifting gear are fixed at the end part of the cross beam, the rack is longitudinally fixed on the straight frame, the lifting gear is meshed with the rack, and the first stepping motor is used for controlling the rotation of the lifting gear so as to drive the whole cross beam to slide up and down relative to the straight frame;

the detection head module is fixedly arranged on the beam and can move up and down along with the beam;

the detection head module comprises a plurality of electrode tips, the detection head module is positioned above the detection disc mechanism, and the electrode tips can stretch into the analysis pool to complete detection.

In some embodiments, the detection disc mechanism further comprises a detection disc, a rotation table, and a lifting sampling member;

the bottom support of the rotating table is fixed on the bottom plate of the shell, the detection disc is arranged above the rotating table, and the rotating table is used for controlling the integral rotation of the detection disc;

a plurality of analysis cells are arranged on the upper surface of the detection disc;

the lifting sampling piece and the detection head module are respectively positioned on different sides above the detection disc;

the lifting sampling piece is communicated with the pumping mechanism and used for extending into or leaving from the analysis pool through automatic lifting, and a reagent to be detected is pumped into the analysis pool or the detected reagent is pumped out under the control of the pumping mechanism.

In some embodiments, the pumping mechanism includes a plurality of plunger pumps for controlling liquid feeding and discharging, and a plurality of multi-channel solenoid valves for switching working channels of the corresponding plunger pumps to switch functions of the plunger pumps.

In some embodiments, the device further comprises a first auxiliary liquid adding device and a second auxiliary liquid adding device; the liquid inlet ends of the first auxiliary liquid adding device and the second auxiliary liquid adding device are communicated with the pumping mechanism; the liquid outlet end of the first auxiliary liquid adding device is positioned above the oscillating and rotating mechanism and is used for adding a first auxiliary liquid into a reagent container of the oscillating and rotating mechanism; and the liquid outlet end of the second auxiliary liquid adding device is positioned above the detection disc mechanism and is used for adding second auxiliary liquid into an analysis pool of the detection disc mechanism.

The utility model has the beneficial effects that: the intelligent heavy metal detector provided by the utility model can automatically realize most of operations in the heavy metal detection process, is very convenient, greatly reduces the workload of workers, and improves the detection efficiency and the detection precision; and the integration degree is high, and the space is saved.

Drawings

FIG. 1 is a top view of the interior of the intelligent heavy metal detector provided by the present invention;

FIG. 2 is a front view of the interior of the intelligent heavy metal detector of the present invention;

FIG. 3 is a left side view of the interior of the intelligent heavy metal detector provided by the present invention;

FIG. 4 is a schematic perspective view of a sample-loading weighing mechanism;

fig. 5 is an exploded view of the oscillating rotary mechanism;

fig. 6 is a schematic perspective view of the oscillating and rotating mechanism;

fig. 7 is a front sectional view of the oscillating rotary mechanism;

FIG. 8 is a partially exploded view of the lift detection head mechanism;

fig. 9 is a perspective view of the lift detection head mechanism.

Description of reference numerals:

1. a sample adding and weighing mechanism; 2. a vibration rotating mechanism; 3. a lifting detection head mechanism; 4. a detection tray mechanism; 5. a pumping mechanism; 6. a first auxiliary liquid adding device; 7. a second auxiliary liquid adding device; 8. a base plate; 11. an electromagnetic push-pull valve; 12. a linear module; 13. a feeding bin; 14. a feeding bin; 15. a container positioning member; 16. a weighing sensor; 17. erecting a frame; 18. a connecting plate; 21. a first motor; 22. an eccentric shaft; 23. a driven wheel; 24. a limit switch; 25. an optocoupler switch; 26. a driving wheel; 27. a second motor; 28. rotating the tray; 29. a shock-absorbing rubber pad; 210. a base; 211. a movable connecting plate; 212. rotating the dividing plate; 213. a second fixing plate; 214. a first rotating shaft; 215. a cam weight plate; 216. a first fixing plate; 217. connecting columns; 218. a container support plate; 219. a through hole; 220. a mounting frame; 221. a second rotating shaft; 222. a tray support; 31. a straight frame; 32. a cross beam; 33. a first step motor; 34. a lifting gear; 35. a rack; 36. a second stepping motor; 37. collecting a plate; 38. a driving gear; 39. a driven gear; 310. a slip ring; 311. a housing; 312. a lifting limit switch; 313. an electrode tip; 314. an electrode receptacle; 41. detecting a disc; 42. an analysis cell; 43. a rotating table; 44. and lifting the sampling piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.

Referring to fig. 1-3, an intelligent heavy metal detector comprises a housing (not shown in the figures), a central control module, a sample-adding weighing mechanism 1, a vibration rotating mechanism 2, a lifting detection head mechanism 3, a detection plate mechanism 4 and a pumping mechanism 5, wherein the central control module, the sample-adding weighing mechanism 1, the vibration rotating mechanism 2, the lifting detection head mechanism 3, the detection plate mechanism 4 and the pumping mechanism 5 are arranged in the housing; the central control module is used for controlling the intelligent work of the intelligent heavy metal detector; the shell is provided with a feeding port, the feeding port corresponds to an opening at the upper end of the sample adding and weighing mechanism 1, the sample adding and weighing mechanism 1 is used for adding a to-be-tested agent into a reagent container in the shell and weighing the reagent container after sample adding is finished; a plurality of reagent containers are arranged in the oscillation rotating mechanism 2, and the oscillation rotating mechanism 2 is used for enabling the plurality of reagent containers to rotate to the positions corresponding to the sample adding weighing mechanism 1 in sequence so as to finish the respective sample adding of the plurality of reagent containers; the oscillation rotating mechanism 2 is also used for oscillating and standing the reagents in the plurality of reagent containers after sample adding is finished; the pumping mechanism 5 is used for pumping the processed reagent in the reagent container to the detection disc mechanism 4; the lifting detection head mechanism 3 is matched with the detection disc mechanism 4 and is used for finishing heavy metal detection of the reagent and outputting a detection result through the central control module; the pumping mechanism 5 is also used to draw out the reagent after the completion of the test.

With further reference to fig. 4, in one embodiment, the sample-adding and weighing mechanism 1 includes a vertical frame 17, a linear module 12, a weighing sensor 16, a connecting plate 18, a container positioning member 15, and a material-adding bin 14; the stand 17 is fixed on the bottom plate 8 of the shell; the linear module 12 is arranged on the side surface of the vertical frame 17, the connecting plate 18 is arranged on the linear module 12, and the connecting plate 18 can move up and down under the control of the linear module 12; the weighing sensor 16 is fixedly arranged on the connecting plate 18, and the container positioning piece 15 is arranged above the weighing sensor 16; the feeding bin 14 is arranged at the top end of the stand 17, the feeding bin 14 is of a funnel-shaped structure, the upper port of the feeding bin 14 is positioned at the feeding port on the shell, and the lower port of the feeding bin 14 faces the container positioning piece 15; the container positioner 15 is used to enable a sample container to be placed thereon and to define the position of the sample container, and the container positioner 15 is able to move up and down with the connecting plate 18. The sample container may be a test tube, and the container positioning member 15 may be a test tube holder corresponding to the size of the test tube.

Preferably, the sample-adding weighing mechanism 1 further comprises a push-pull plate 13 and an electromagnetic push-pull valve 11, which are installed beside the feeding bin 14, wherein the push-pull plate 13 is used for opening or closing the feeding port of the outer shell under the control of the electromagnetic push-pull valve 11; the inside of the container positioner 15 is also provided with a spacer to avoid damage to the sample container.

It is understood that the linear module 12 can be implemented by using the existing structure, such as a linear module including a stepping motor, a screw rod, etc., or by using other types of linear modules, as long as the weighing sensor 16, the connecting plate 18 and the container positioning member 15 can be controlled to move up and down integrally.

With further reference to fig. 5-7, in one embodiment, the oscillating rotating mechanism 2 includes an oscillating module and a rotating module; the oscillation module comprises a first motor 21, a first rotating shaft 214, a plurality of eccentric shafts 22, a base 210, a fixed connecting body and a movable connecting plate 211; the base 210 is fixed on the bottom plate 8 of the shell; the rotating module comprises a second motor 27, a second rotating shaft 221 and a rotating tray 28, the second motor 27 is used for controlling the rotating tray 28 to rotate through the second rotating shaft 221, and the rotating module is integrally positioned above the movable connecting plate 211; the first motor 21 is used for controlling the rotation of a first rotating shaft 214, and the first rotating shaft 214 is fixedly connected with the movable connecting plate 211; the fixed connecting body is fixedly connected with the base 210, the fixed connecting body and the base 210 are both hollow structures, and the formed hollow area is used for allowing the integral structure of the first motor 21, the first rotating shaft 214 and the movable connecting plate 211 to penetrate through and providing a certain movement space; the upper and lower ends of the eccentric shafts 22 are respectively fixedly connected with the movable connecting plate 211 and the fixed connecting body, and the eccentric shafts 22 are used for converting the rotation of the first rotating shaft 214 into rotary oscillating motion, so as to drive the movable connecting plate 211 and the rotating module above the movable connecting plate to integrally perform the rotary oscillating motion.

Preferably, the number of the eccentric shafts 22 is four, and the four eccentric shafts 22 are uniformly distributed outside the first rotating shaft 214; the magnitude of the eccentricity of each eccentric shaft 22 can be adjusted to vary the amplitude of the gyratory oscillation. It is understood that the various shafts described in the present invention (including the eccentric shaft 22) may be connected to other structures by using existing bearing structures, and the present invention is not limited thereto.

In the illustrated embodiment, the fixed connection body includes a first fixed plate 216 and a second fixed plate 213, the first fixed plate 216 and the second fixed plate 213 are both hollow structures, the first fixed plate 216 is located above the second fixed plate 213, the first fixed plate 216 and the second fixed plate 213 are fixedly connected through a plurality of connection structures coated with shock-absorbing rubber pads 29, the first fixed plate 216 is fixedly connected with the base 210 through a plurality of connection posts 217, and the lower ends of the plurality of eccentric shafts 22 are fixedly connected with the second fixed plate 213. In addition, a cam counterweight plate 215 can be additionally arranged at the position of a bearing for connecting the first rotating shaft 214 and the movable connecting plate 211, so that the cam counterweight plate and the shock-absorbing rubber pad 29 can reduce the negative influence caused by oscillation and improve the balance performance during rotary oscillation.

Preferably, the second fixing plate 213 is provided with an optical coupler switch 25, and the optical coupler switch 25 is used for detecting the position of the first motor 21 during the rotation oscillation, so that the first motor 21 returns to the initial position when the rotation oscillation is finished.

Preferably, the rotating module further comprises a mounting frame 220, a rotating partition plate 212, a tray support 222 and a limit switch 24; the bottom end of the mounting frame 220 is fixed on the movable connecting plate 211, the second motor 27 is fixed on the mounting frame 220, the second rotating shaft 221 is fixedly connected with the rotary dividing plate 212, the tray supporting piece 222 is fixed above the rotary dividing plate 212, the tray supporting piece 222 is fixedly connected with the rotary tray 28, and the limit switch 24 is arranged on the mounting frame 220 and positioned beside the rotary dividing plate 212; a plurality of container accommodating portions are arranged on the rotary tray 28 along the circumferential direction and used for accommodating reagent containers; the rotating partition plate 212 is provided with a plurality of triggering portions in a circumferential direction for triggering the limit switches 24 so that the second motor 27 stops operating every time the rotating partition plate 212 rotates by a certain angle and triggers the limit switches 24, thereby controlling the rotation angle of the rotating tray 28.

Preferably, the rotating module further comprises a container support plate 218, the container support plate 218 is a hollow structure, and the hollow area of the container support plate 218 is used for arranging the mounting rack 220 and the related structure, the container support plate 218 is located below the rotating tray 28, and the container support plate 218 does not rotate along with the rotating tray 28; the container support plate 218 is provided with a through hole 219, the size of the through hole 219 being such that the reagent container in the container accommodating section can pass therethrough, and each reagent container can reach the through hole 219 by the rotation of the rotary tray 28; the through hole 219 is located between the lower port of the loading bin 14 and the container positioning member 15, so that the reagent container reaching the through hole 219 can be matched with the loading and weighing mechanism 1 to complete loading and weighing.

Through the turned angle of control rotation tray 28, can conveniently cooperate with application of sample weighing mechanism 1, make every reagent container rotate feed inlet department in proper order, thereby accomplish all reagent container's reinforced, and make the reagent container after reinforced reach container setting element 15 through-hole 219, straight line module 12 control container setting element 15 drives the reagent container and descends afterwards, in order to accomplish weighing through weighing sensor 16, after weighing, straight line module 12 control container setting element 15 drives the reagent container and rises, make test tube container with rotate tray 28 butt joint, rotate tray 28 rotation afterwards, make next test tube container reach reinforced and the position of weighing.

In the illustrated embodiment, the rotary module further comprises a drive pulley 26, a timing belt and a driven pulley 23; the second motor 27 and the driving wheel 26 are fixed on the side surface of the mounting frame 220, and the driven wheel 23 is fixed in the middle of the mounting frame 220; an output shaft of the second motor 27 is fixedly connected with the driving wheel 26, the driving wheel 26 and the driven wheel 23 realize synchronous rotation through a synchronous belt, and the lower end of the second rotating shaft 221 is fixedly connected with the driven wheel 23. Through the arrangement, the structural distribution of the rotating module is more reasonable, and the space utilization rate is improved.

Preferably, the rotating tray 28 is a double-layer structure, the double-layer structure of the rotating tray 28 is fixedly connected to each other, a plurality of container receiving holes are formed in the peripheries of the first layer and the second layer of the rotating tray 28, and the positions of the container receiving holes in the first layer and the second layer are in one-to-one correspondence, so as to form a plurality of container receiving portions. The rotating tray 28 has a two-layer structure, and can improve stability of accommodating reagent containers, and is particularly suitable for accommodating test tubes as shown in the drawings.

With further reference to fig. 8 and 9, in one embodiment, the lift detection head mechanism 3 includes a lift module and a detection head module; the lifting module comprises a straight frame 31, a cross beam 32, a first stepping motor 33, a lifting gear 34 and a rack 35; the straight frame 31 is fixed on the bottom plate 8 of the shell; a slide rail structure is formed on the straight frame 31, and a sliding structure matched with the slide rail structure is formed at one end of the cross beam 32; moreover, the first stepping motor 33 and the lifting gear 34 are fixed at the end of the beam 32, the rack 35 is longitudinally fixed on the straight frame 31, the lifting gear 34 is meshed with the rack 35, and the first stepping motor 33 is used for controlling the rotation of the lifting gear 34, so that the beam 32 is driven to integrally slide up and down relative to the straight frame 31; the detection head module is fixedly arranged on the beam 32 so as to move up and down along with the beam 32; the detection head module comprises a plurality of electrode heads 313, the detection head module is positioned above the detection disc mechanism 4, the detection disc mechanism 4 comprises a plurality of analysis cells 42, and the electrode heads 313 can extend into the analysis cells 42 to complete detection.

Preferably, the lifting module further includes two lifting limit switches 312 installed on the straight frame 31, and the first stepping motor 33 is automatically stopped when any one of the lifting limit switches 312 is activated. The lifting limit switch 312 can adopt a structure that a photoelectric switch is matched with the light screen, and can also adopt other types of limit switches; the two lifting limit switches 312 are used for limiting the lowest point and the highest point of the movement of the detection head module respectively.

In the illustrated embodiment, the detection head module includes a housing, a second stepper motor 36, a drive gear 38, and a plurality of acquisition assemblies; the shell comprises an outer cover 311 and a plurality of connecting structures, is used for realizing the connection and fixation of all parts in the detection head module, and is fixedly connected with the cross beam 32; the second stepping motor 36 is used for controlling the rotation of the driving gear 38; each collecting assembly comprises an electrode socket 314, an electrode head 313, a driven gear 39, a collecting plate 37 and a slip ring 310; in each acquisition assembly, the driven gear 39 is meshed with the driving gear 38 or meshed with other driven gears 39, so that each driven gear 39 can rotate along with the rotation of the driving gear 38; the collecting plate 37 is mounted on the upper end of the driven gear 39, the electrode socket 314 is mounted on the lower end of the driven gear 39, and the electrode tap 313 is detachably mounted on the electrode socket 314; the electrode head 313 penetrates through the bottom of the shell and extends to the lower end for acquiring an acquisition signal; the slip ring 310 is located above the collection plate 37, the lower section lead of the slip ring 310 is electrically connected with the corresponding collection plate 37, and the upper section lead is electrically connected with the circuit main board of the heavy metal detector.

In the illustrated embodiment, the detection head module includes four acquisition assemblies, and the selection device may be a single channel, a dual channel, a triple channel, or more channels according to actual needs.

In one embodiment, the detection plate mechanism 4 further comprises a detection plate 41, a rotation table 43 and a lifting sampling member 44; the bottom support of the rotating platform 43 is fixed on the bottom plate 8 of the shell, the detection disc 41 is arranged above the rotating platform 43, and the rotating platform 43 is used for controlling the integral rotation of the detection disc 41; a plurality of analysis cells 42 are each provided on the upper surface of the detection tray 41; the lifting sampling piece 44 and the detection head module are respectively positioned on different sides above the detection disc 41; the lifting sampling piece 44 is further communicated with the pumping mechanism 5, and the lifting sampling piece 44 is used for extending into or leaving the analysis pool 42 through automatic lifting, and pumping a reagent to be detected into the analysis pool 42 or pumping out the detected reagent under the control of the pumping mechanism 5.

Preferably, the pumping mechanism 5 includes a plurality of plunger pumps and a plurality of multi-channel solenoid valves, the plunger pumps are used for controlling liquid feeding and liquid discharging, and the multi-channel solenoid valves are used for switching working channels of the corresponding plunger pumps to switch functions of the plunger pumps. It will be appreciated that in addition to the pumping mechanism 5 being used to pump the relevant reagents, the multi-channel solenoid valve may also switch the corresponding plunger pump to the clear water channel to effect the purge function.

Preferably, the intelligent heavy metal detector further comprises a first auxiliary liquid adding device 6 and a second auxiliary liquid adding device 7; the liquid inlet ends of the first auxiliary liquid adding device 6 and the second auxiliary liquid adding device 7 are communicated with the pumping mechanism 5; moreover, the liquid outlet end of the first auxiliary liquid adding device 6 is positioned above the oscillating and rotating mechanism 2 and is used for adding the first auxiliary liquid into the reagent container of the oscillating and rotating mechanism 2; the liquid outlet end of the second auxiliary liquid adding device 7 is positioned above the detection disc mechanism 4 and is used for adding the second auxiliary liquid into the analysis cell 42 of the detection disc mechanism 4. The first auxiliary liquid can be used for diluting the reagent; the second auxiliary liquid can be used for activating the reagent so as to improve the detection effect.

In a specific embodiment, the working process of the intelligent heavy metal detector provided by the utility model is as follows: through operating a switch on the shell, resetting each internal mechanism, rotating the tray 28 to enable a reagent container to rotate to a container positioning part 15, then automatically opening the electromagnetic push-pull valve 11 to enable the push-pull plate 13 to retract backwards to open a feeding port, simultaneously lighting an indicator light to prompt a worker to add a quantitative sample into the storage bin 14, after the worker confirms that one-time feeding is completed through operating a key, the linear module 12 drives the container positioning part 15 to move downwards to start weighing, and after weighing, the linear module 12 drives the container positioning part 15 to move upwards to enable the weighed reagent container to be in butt joint with the rotating tray 28; thereafter, the second motor 27 operates to drive the rotating tray 28 to rotate, so that the next reagent container reaches the position for feeding and weighing, the next reagent container is lighted again to prompt feeding again, and the operations are repeated until the staff confirms that the feeding and weighing of all the required reagent containers are completed by operating the keys; next, the plunger pump of the pumping mechanism 5 controls the first auxiliary liquid adding device 6 to automatically add the first auxiliary liquid into the reagent containers located below, and the rotation of the rotating tray 28 realizes the addition of the first auxiliary liquid to all the reagent containers as required; then, the first motor 21 works to start rotary oscillation, so that the reagent to be tested is fully mixed with the first auxiliary liquid, and the mixture automatically stands for a certain time after oscillation; next, the multi-way reversing valve of the pumping mechanism 5 starts to switch channels, the plunger pump works to extract the sample liquid to be kept standing, the sample liquid is added into the analysis cell 42 of the detection tray 41 through the lifting sampling piece 44, and each time the sample liquid in one test tube container is extracted, the multi-way reversing valve needs to switch a clear water circuit to automatically clean the system and recover the cleaned water; after the four channels are added, the rotating platform 43 rotates, the analysis pool 42 with the four channels of the sample liquid is rotated to the position for adding the second auxiliary liquid, the plunger pump controls the second auxiliary liquid adding device 7 to add the second auxiliary liquid into the analysis pool 42 for activation, and then the analysis pool is rotated to the position below the detection head module; the lifting detection head mechanism 3 works, the first stepping motor 33 works to control the lifting gear 34 to rotate, the lifting gear 34 and the cross beam 32 integrally move downwards relative to the straight frame 31 and the rack 35 due to the mutual engagement of the lifting gear 34 and the rack 35, the detection head module is driven to move downwards, the four electrode tips 313 respectively extend into the four-channel analysis tanks 42 for activation detection, and during detection, the second stepping motor 36 controls the driving gear 38 to rotate and drives the driven gear 39 to rotate, so that each electrode tip 313 rotates along with the rotation, the slip ring 310 does not select along with the rotation, and detection information is transmitted to a circuit main board of the heavy metal detector; after the detection is finished, the detection head module rises to a certain position, the detection result is obtained, a report is printed, the electrode tip 313 is replaced by a new electrode tip 313 after the electrode tip 313 is pulled out, the rotating platform 43 rotates, the liquid in the test tube container which is not detected is extracted into the analysis pool 42, and the actions are repeated until all the detection samples are finished.

In conclusion, the intelligent heavy metal detector provided by the utility model can automatically realize most of operations in the heavy metal detection process, is very convenient, greatly reduces the workload of workers, and improves the detection efficiency and the detection precision; and the integration degree is high, and the space is saved.

Finally, the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. An intelligent heavy metal detector is characterized by comprising a shell, a central control module, a sample adding and weighing mechanism (1), a vibration rotating mechanism (2), a lifting detection head mechanism (3), a detection disc mechanism (4) and a pumping mechanism (5), wherein the central control module, the sample adding and weighing mechanism, the vibration rotating mechanism, the lifting detection head mechanism and the detection disc mechanism are arranged in the shell;

the central control module is used for controlling the intelligent work of the intelligent heavy metal detector;

the shell is provided with a feeding port, the feeding port corresponds to an opening at the upper end of the sample adding and weighing mechanism (1), the sample adding and weighing mechanism (1) is used for adding a to-be-tested agent into a reagent container in the shell and weighing the reagent container after sample adding is finished;

a plurality of reagent containers are arranged in the oscillation rotating mechanism (2), and the oscillation rotating mechanism (2) is used for enabling the plurality of reagent containers to rotate to the positions corresponding to the sample adding weighing mechanism (1) in sequence so as to finish the respective sample adding of the plurality of reagent containers;

the oscillation rotating mechanism (2) is also used for oscillating and standing the reagents in the multiple reagent containers after sample adding is finished;

the pumping mechanism (5) is used for pumping the processed reagent in the reagent container to the detection disc mechanism (4);

the lifting detection head mechanism (3) is matched with the detection disc mechanism (4) and is used for finishing the heavy metal detection of the reagent and outputting a detection result through the central control module;

the pumping mechanism (5) is also used for pumping out the reagent after the detection is finished.

2. The intelligent heavy metal detector according to claim 1, wherein the sample loading and weighing mechanism (1) comprises a vertical frame (17), a linear module (12), a weighing sensor (16), a connecting plate (18), a container positioning member (15) and a loading bin (14);

the stand (17) is fixed on the bottom plate (8) of the shell;

the straight line module (12) is arranged on the side surface of the stand (17), the connecting plate (18) is arranged on the straight line module (12), and the connecting plate (18) can move up and down under the control of the straight line module (12);

the weighing sensor (16) is fixedly arranged on the connecting plate (18), and the container positioning piece (15) is arranged above the weighing sensor (16);

the feeding bin (14) is mounted at the top end of the vertical frame (17), the feeding bin (14) is of a funnel-shaped structure, the upper end opening of the feeding bin (14) is located at the feeding opening on the shell, and the lower end opening of the feeding bin (14) faces the container positioning piece (15);

the container positioning part (15) is used for enabling a sample container to be placed on the container positioning part and limiting the position of the sample container, and the container positioning part (15) can move up and down along with the connecting plate (18).

3. The intelligent heavy metal detector according to claim 2, wherein the sample loading and weighing mechanism (1) further comprises a push-pull plate (13) and an electromagnetic push-pull valve (11) which are arranged beside the loading bin (14), and the push-pull plate (13) is used for opening or closing the loading port of the outer shell under the control of the electromagnetic push-pull valve (11); and a spacer is also arranged on the inner side of the container positioning piece (15).

4. The intelligent heavy metal detector according to claim 2, wherein the oscillating and rotating mechanism (2) comprises an oscillating module and a rotating module;

the oscillation module comprises a first motor (21), a first rotating shaft (214), a plurality of eccentric shafts (22), a base (210), a fixed connecting body and a movable connecting plate (211);

the base (210) is fixed on a bottom plate (8) of the shell;

the rotating module comprises a second motor (27), a second rotating shaft (221) and a rotating tray (28), the second motor (27) is used for controlling the rotating tray (28) to rotate through the second rotating shaft (221), and the rotating module is integrally positioned above the movable connecting plate (211);

the first motor (21) is used for controlling a first rotating shaft (214) to rotate, and the first rotating shaft (214) is fixedly connected with the movable connecting plate (211);

the fixed connecting body is fixedly connected with the base (210), the fixed connecting body and the base (210) are both hollow structures, and the formed hollow area is used for enabling the integral structure of the first motor (21), the first rotating shaft (214) and the movable connecting plate (211) to penetrate through and providing a certain movement space;

the upper end and the lower end of each eccentric shaft (22) are respectively fixedly connected with the movable connecting plate (211) and the fixed connecting body, and the eccentric shafts (22) are used for converting the rotation of the first rotating shaft (214) into rotary oscillating motion, so that the movable connecting plate (211) and the rotary module above the movable connecting plate are driven to integrally do rotary oscillating motion.

5. The intelligent heavy metal detector of claim 4, wherein the rotating module further comprises a mounting bracket (220), a rotating partition plate (212), a tray support (222), and a limit switch (24);

the bottom end of the mounting frame (220) is fixed on the movable connecting plate (211), the second motor (27) is fixed on the mounting frame (220), the second rotating shaft (221) is fixedly connected with the rotary dividing plate (212), the tray supporting piece (222) is fixed above the rotary dividing plate (212), the tray supporting piece (222) is fixedly connected with the rotary tray (28), and the limit switch (24) is arranged on the mounting frame (220) and located beside the rotary dividing plate (212);

a plurality of container accommodating parts are arranged on the rotating tray (28) along the circumferential direction and used for accommodating reagent containers; the rotating dividing plate (212) is provided with a plurality of triggering parts along the circumferential direction and is used for triggering the limit switches (24), so that when the rotating dividing plate (212) rotates for a certain angle and triggers the limit switches (24), the second motor (27) stops working, and the rotating angle of the rotating tray (28) is controlled.

6. The intelligent heavy metal detector of claim 5, wherein the rotating module further comprises a container support plate (218), the container support plate (218) is a hollow structure, a hollow area of the container support plate (218) is used for arranging the mounting rack (220), the container support plate (218) is located below the rotating tray (28), and the container support plate (218) does not rotate along with the rotating tray (28);

the container support plate (218) is provided with a through hole (219), the size of the through hole (219) enables the reagent container in the container accommodating part to pass through, and each reagent container can reach the through hole (219) through the rotation of the rotating tray (28);

the through hole (219) is positioned between the lower port of the feeding bin (14) and the container positioning part (15), so that the reagent container reaching the through hole (219) can be matched with the feeding and weighing mechanism (1) to finish feeding and weighing.

7. The intelligent heavy metal detector of claim 1, wherein the detection tray mechanism (4) includes a plurality of analysis cells (42);

the lifting detection head mechanism (3) comprises a lifting module and a detection head module;

the lifting module comprises a straight frame (31), a cross beam (32), a first stepping motor (33), a lifting gear (34) and a rack (35);

the straight frame (31) is fixed on the bottom plate (8) of the shell;

a sliding rail structure is formed on the straight frame (31), and a sliding structure matched with the sliding rail structure is formed at one end of the cross beam (32);

the first stepping motor (33) and the lifting gear (34) are fixed at the end part of the cross beam (32), the rack (35) is fixed on the straight frame (31) along the longitudinal direction, the lifting gear (34) is meshed with the rack (35), and the first stepping motor (33) is used for controlling the rotation of the lifting gear (34) so as to drive the cross beam (32) to integrally slide up and down relative to the straight frame (31);

the detection head module is fixedly arranged on the beam (32) so as to move up and down along with the beam (32);

the detection head module comprises a plurality of electrode tips (313), the detection head module is positioned above the detection disc mechanism (4), and the electrode tips (313) can extend into the analysis cell (42) to complete detection.

8. The intelligent heavy metal detector according to claim 7, wherein the detection disc mechanism (4) further comprises a detection disc (41), a rotating table (43) and a lifting sampling piece (44);

the bottom support of the rotating platform (43) is fixed on a bottom plate (8) of the shell, the detection disk (41) is arranged above the rotating platform (43), and the rotating platform (43) is used for controlling the integral rotation of the detection disk (41);

a plurality of analysis cells (42) are arranged on the upper surface of the detection plate (41);

the lifting sampling piece (44) and the detection head module are respectively arranged on different sides above the detection disc (41);

the lifting sampling piece (44) is also communicated with the pumping mechanism (5), and the lifting sampling piece (44) is used for extending into or leaving the analysis pool (42) through automatic lifting and is used for pumping a reagent to be detected into the analysis pool (42) or pumping out the detected reagent under the control of the pumping mechanism (5).

9. The intelligent heavy metal detector of claim 1, wherein the pumping mechanism (5) comprises a plurality of plunger pumps and a plurality of multi-channel solenoid valves, the plunger pumps are used for controlling liquid feeding and liquid discharging, and the multi-channel solenoid valves are used for switching working channels of the corresponding plunger pumps so as to switch functions of the plunger pumps.

10. The intelligent heavy metal detector of claim 1, further comprising a first auxiliary liquid adding device (6) and a second auxiliary liquid adding device (7); the liquid inlet ends of the first auxiliary liquid adding device (6) and the second auxiliary liquid adding device (7) are communicated with the pumping mechanism (5); the liquid outlet end of the first auxiliary liquid adding device (6) is positioned above the oscillating and rotating mechanism (2) and is used for adding a first auxiliary liquid into a reagent container of the oscillating and rotating mechanism (2); the liquid outlet end of the second auxiliary liquid adding device (7) is positioned above the detection disc mechanism (4) and is used for adding second auxiliary liquid into an analysis pool (42) of the detection disc mechanism (4).

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