CN204142550U - A kind of New Magnetic Field Controlled separating mechanism - Google Patents
A kind of New Magnetic Field Controlled separating mechanism Download PDFInfo
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- CN204142550U CN204142550U CN201420555863.0U CN201420555863U CN204142550U CN 204142550 U CN204142550 U CN 204142550U CN 201420555863 U CN201420555863 U CN 201420555863U CN 204142550 U CN204142550 U CN 204142550U
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Abstract
The utility model discloses a kind of New Magnetic Field Controlled separating mechanism, comprise coding rotary disk mechanism, magnet open-and-close mechanism and wiper mechanism; Described magnet open-and-close mechanism is arranged in coding rotary disk mechanism, and described wiper mechanism is distributed in the surrounding of coding rotary disk mechanism; Be placed on the nanometer magnetic bead in the liquid in the reaction cup in coding rotary disk mechanism by the absorption of magnet open-and-close mechanism controlling magnet, by wiper mechanism, the liquid in reaction cup cleaned, complete nanometer magnetic bead and be separated; This utility model achieves multistation separating, washing and is provided with mixing station in same mechanism; when carrying out the motion flow of a certain station; the motion flow of other stations can be carried out; not be used in mechanism's peripheral hardware magnetic particle mixing mechanism; by the rotary motion of code-wheel mechanism; the application principle of camming movement and the mixing of eccentric rotary principle realize above motion flow, and structure is simple and the separating, washing efficiency of equipment is improved.
Description
Technical field
The utility model relates to a kind of New Magnetic Field Controlled separating mechanism.
Background technology
Along with the development of magnetic particle technology, chemiluminescence immunoassay technology obtains applying more and more widely in medical industry.Automatic chemiluminescence immunoassay equipment, in test process, needs to use nanometer magnetic bead and antibody, antigen combine, and nanometer magnetic bead and antibody, antigen need the remaining liquid in cleaning reaction cup after combining.At present, in Full-automatic chemiluminescence apparatus device, most of Magneto separate wiper mechanism processes multiple sample simultaneously to realize or reduces the single sample separation washing stand-by period, the multiple same unit of linear distribution; In order to can carry out secondary or repeatedly hatch, mechanism's peripheral hardware magnetic particle mixing mechanism, makes chemiluminescence immune assay flow process lengthen; Magneto separate mechanism is complicated, and size is comparatively large, and installation and maintenance is neither convenient.If can multistation separating, washing be realized and be provided with mixing station in same mechanism, when carrying out the motion flow of a certain station, the motion flow of other stations can be carried out simultaneously, equipment travelling speed so just can be made faster, process multiple sample simultaneously, make analysis process more terse, improve analysis efficiency.
Utility model content
Technical problem to be solved in the utility model cannot realize multistation separating, washing in same mechanism and be provided with mixing station; when carrying out the motion flow of a certain station; the motion flow of other stations cannot be carried out simultaneously; need the problem at mechanism's peripheral hardware magnetic particle mixing mechanism; utilize a kind of New Magnetic Field Controlled separating mechanism proposed to solve the problems referred to above, and structure is simple and make the separating, washing efficiency of the equipment that improves.
A kind of New Magnetic Field Controlled separating mechanism, comprises coding rotary disk mechanism, magnet open-and-close mechanism and wiper mechanism; Described magnet open-and-close mechanism is arranged in coding rotary disk mechanism, and described wiper mechanism is distributed in the surrounding of coding rotary disk mechanism; Be placed on the nanometer magnetic bead in the liquid in the reaction cup in coding rotary disk mechanism by the absorption of magnet open-and-close mechanism controlling magnet, successively the liquid in reaction cup cleaned by wiper mechanism, complete nanometer magnetic bead and be separated;
Described coding rotary disk mechanism comprises rotating disk 11, shaft collar 12, support nail 13, the bearing seat 14 that bearing is housed, turntable rotation axle 15, first Timing Belt engaged wheel 16, first Timing Belt driving wheel 17, first Timing Belt 18, first stepper motor 19, installing plate 21, fixing support rack 22, first null pick-up 23, first zero-bit sensing chip 24 and the first null pick-up holder 25;
Described installing plate 21 is fixed on the top of fixing support rack 22 in horizontal direction, and shaft collar 12 is fixed on installing plate 21 by least two support nails 13; The bearing seat 14 that bearing is housed is arranged on installing plate 21;
Described rotating disk is fixed on the upper end of described turntable rotation axle; Described turntable rotation axle 15 is connected with described bearing fit and the lower end of turntable rotation axle is passed installing plate and is connected with described first Timing Belt engaged wheel 16; Described first Timing Belt driving wheel 17 is connected with the first Timing Belt engaged wheel 16 transmission by the first Timing Belt 18; Described first stepper motor is arranged on fixing support rack sidepiece; Finally turntable rotation is driven by the first Timing Belt driving wheel, the first Timing Belt, the first Timing Belt engaged wheel and turntable rotation axle by the first stepper motor;
Described first null pick-up holder 25 is arranged on the bottom of installing plate 21, and described first null pick-up 23 is arranged on described first null pick-up holder 25, and the first zero-bit sensing chip 24 is arranged on described first Timing Belt engaged wheel 16;
Described first zero-bit sensing chip is circular, annulus offers breach 9, driven by motor dial rotation, when first Timing Belt engaged wheel 16 follows electric machine rotation, first zero-bit sensing chip shelters from the light path of the first null pick-up 23, and when breach forwards the first null pick-up to, the light path of the first null pick-up is not blocked, now, rotating disk finds initial point.
Described rotating disk 11 is evenly provided with the reaction cup aperture for placing response cup 1, and offers the gathering sill 2 for placing magnet slide block 31 below reaction cup aperture;
The cam path 5 that described magnet open-and-close mechanism comprises described magnet slide block 31, permanent magnet 32, roller 33, first bearing pin 34 and is opened on shaft collar; Described permanent magnet 32 setting-in enters in magnet slide block 31, and one end of described first bearing pin 34 is connected with roller 33, and other end close-fitting is arranged in magnet slide block 31; Magnet slide block 31 is pressed permanent magnet 32 and is loaded outwardly in the gathering sill 2 of rotating disk 11, and the roller 33 on described magnet slide block 31 is arranged in the cam path 5 of shaft collar 12; Along with the rotation of rotating disk 11, the roller 33 of magnet slide block rolls along cam path, and magnet slide block carries out radial motion on gathering sill, adsorption reaction cup;
At magnet slide block 31, the gradient design gradient of permanent magnet 32 side according to the outer cup face of reaction cup is housed, namely the outer draft of reaction cup is 1 °, the end face match machined of magnet slide block 31 becomes 1 ° with level, and permanent magnet 32 is mounted thereto can press close to reaction cup outside surface better.On magnet slide block 31, design technology hole 3 facilitates the dismounting of permanent magnet 32.The adsorption plane lowest order of permanent magnet 32, higher than the sphere of reaction cup inside bottom, ensure that magnetic bead adsorbs abundant, reduces magnetic bead and causes loss because cleaning.
Described cam path for design according to demand, by the Design of length of isometrical section, the time that controlling magnet slide block and reaction cup are adsorbed.
Described wiper mechanism comprises the axis of guide 41, angle sheave 42, cleaning sliding shoe 43, cleaning needle 44, second driven pulley 45, second Timing Belt 46, second synchronous pulley 47, Hall element 48, second stepper motor 51, second stepping motor fixing plate 52 and cleaning fixed base plate 53;
Described second driven pulley is formed dress by 2 flange bearing small ends.
Described second stepping motor fixing plate 52 is vertical to be contained on cleaning fixed base plate 53, described second stepper motor 51 is fixed on the lower end of the second stepping motor fixing plate 52, second synchronous pulley 47 described in described second driving stepper motor, is in transmission connection by the second Timing Belt 46 and is arranged on the second driven pulley 45 of the second stepping motor fixing plate 52 upper end; Described cleaning sliding shoe is provided with cleaning needle 44, and cleaning sliding shoe is fixedly connected with the second Timing Belt, moves up and down with the second Timing Belt; The top of described second stepping motor fixing plate 52 is provided with the second null pick-up, and described second driven pulley is provided with the second zero-bit sensing chip.
During wiper mechanism work, first must reset and namely look for initial point: the second stepper motor 51 rotates clockwise, by the second toothed belt transmission, drive cleaning sliding shoe 43 and cleaning needle 44 mounted thereto, when the second null pick-up 48 touches the second zero-bit sensing chip, namely complete homing action.
Liquid feeding action: the second stepper motor 51 rotates counterclockwise, by the second toothed belt transmission, drive cleaning sliding shoe 43 and cleaning needle 44 mounted thereto move downward the position of specifying in reaction cup, start toward liquid feeding in reaction cup, in liquid feeding process, the second stepper motor 51 rotates clockwise, cleaning needle 44 moves upward, until reset, need the liquid controlled added by guarantee not to be stained with the outer pin outer wall of cleaning needle in this process, namely the speed of liquid level rising is slower than the speed of cleaning needle lifting.
Drawing liquid action: when having liquid to need to extract in reaction cup, second stepper motor 51 rotates counterclockwise, by the second toothed belt transmission, cleaning sliding shoe 43 and cleaning needle 44 mounted thereto is driven to move downward, now cleaning needle has drawing liquid absorption affinity, ensures to start drawing liquid in reaction cup, in drawing liquid process once contact liquid level, the liquid that need control added by ensureing is not stained with the outer pin outer wall of cleaning needle, i.e. the speed that the speed of cleaning needle lifting declines than liquid level is slow.
Also comprise the angle sheave 42 being arranged on cleaning sliding shoe both sides and the axis of guide 41 being arranged on the second stepping motor fixing plate 52 both sides in described wiper mechanism, the inner side of angle sheave contacts with the axis of guide.
Second stepper motor rotates, and drives Timing Belt motion, cleans sliding shoe 43 with Timing Belt by angle sheave 42 and the axis of guide 41 relative sliding, angle sheave and guiding shaft design, makes moving up and down of cleaning slide block more stable and accurate.
Cleaning needle in described wiper mechanism is two-tube cleaning needle, and outer tube is liquid feeding pin, and interior pipe is liquid pumping needle.
At least comprise a set of wiper mechanism.
Overlap wiper mechanism more, form multistage synchronous cleaning, save scavenging period, strengthen cleaning dynamics.
Also comprise the magnetic particle mixing mechanism be arranged in coding rotary disk mechanism, described magnetic particle mixing mechanism comprises brshless DC motor 71, motor cabinet 72, the excentric shaft 73 of band bearing, mixing turning axle 75 and mixing 77;
Described motor cabinet 72 is fixed on installing plate 21, described brshless DC motor 71 is arranged on described motor cabinet 72, the rotating shaft of brshless DC motor 71 is connected through the excentric shaft 73 of motor cabinet 72 with band bearing, the excentric shaft 73 of described band bearing, mixing turning axle 75 and mixing 77 is connected successively, mixing head rest is lived reaction cup and is rotated, and realizes mixing.
When reaction cup moves to mixing position, the mixing head be positioned at below reaction cup carries out eccentric rotary, thus makes reaction cup carry out eccentric rotary thus the material in reaction cup is mixed;
Also comprise and to be arranged on shaft collar 12 and through the climbing lifting mechanism of reaction cup movement locus, described climbing lifting mechanism comprises low order climbing block 61 and high-order climbing block 62;
Be arranged on the mixing 77 of mixing station between described low order climbing block and described high-order climbing block;
The peak of described low order climbing block and the minimum point of high-order climbing block all with mix parallel;
Reaction cup with in dial movement process along low order climbing block climb rise to mixing station mixing head on, climb to rise to get a glass station along high-order climbing block.
The rotary motion of climbing block and rotating disk forms climbing lifting mechanism 60, without the need to other lifting mechanism lifting reaction cup.
The surface of described climbing lifting mechanism and the bottom arc surface of reaction cup tangent.
Along with the rotational response cup arc surface of rotating disk is along climbing block surface sliding, along with the face with climbing block raises, progressively lifting.
Described magnetic particle mixing mechanism is provided with mixing seat 76, and mixing seat is fixed on motor cabinet 72; Described mixing turning axle, through mixing seat, between mixing seat and mixing turning axle, mixing turning axle is set with Compress Spring 74.
Described magnetic particle mixing mechanism is also provided with elastic pressuring plate external member 80, and described elastic pressuring plate external member 80 comprises elastic pressuring plate mount pad 81, extension spring 82, blind rivet 83, compressing tablet 84, second bearing pin 85 and set screw 86;
Described elastic pressuring plate mount pad 81 is fixed on the installing plate 21 of coding rotary disk mechanism 10, described compressing tablet 84 is connected with elastic pressuring plate mount pad 81 by the second bearing pin 85, described set screw 86 screws in elastic pressuring plate mount pad 81 by described compressing tablet 84 jack-up, extension spring 82 one end is hooked on compressing tablet 84, and the other end hooks the blind rivet 83 be fixed on elastic pressuring plate mount pad 81;
Described compressing tablet offers adjustment hole 4, change the height of set screw through adjustment hole 4; The diameter of described adjustment hole 4 is larger than the internal diameter of set screw 86, and less than the external diameter of set screw;
Described set screw is holding screw.
Allen key is utilized to pass adjustment hole 4 turn set screw, change the screw-in depth of set screw in elastic pressuring plate mount pad, thus change the angle of compressing tablet and surface level, namely the pivot angle of compressing tablet 84 is regulated, reaction cup is made to arrive mixing position smoothly along compressing tablet direction, in blending process, compressing tablet blocks reaction cup, prevents reaction cup in blending process from ejecting from putting hole.
Adopt stepper motor and toothed belt transmission to drive turntable rotation to go forward one by one, reaction cup, with turntable rotation, rotating disk has position, 8 holes, and often go forward one by one and once rotate position, a hole, the time interval of at every turn going forward one by one is fixed, rotation 45 ° of namely at every turn going forward one by one.Four independently liquid feeding, drawing liquid wiper mechanisms, can realize automatic liquid-feeding, drawing liquid mode and automatically select drawing liquid, liquid feeding number of times neatly, and liquid feeding pin can clean liquid pumping needle automatically, avoids the cross pollution between different test item; The climbing lifting mechanism of design, can make reaction cup segmentation lifting, first arrives mixing height, then is lifted to and gets cup height, getting the convenient pickup in cup position, without the need to other lifting mechanism lifting reaction cup.Simultaneously this Magneto separate mechanism also can controlling magnet pickup time neatly, and mechanism structure is compact, takes up room minimum, and each moving component is reproducible, and the nanometer magnetic bead achieved on chemiluminescence immune assay equipment is separated and automatic cleaning function.
Beneficial effect
A kind of New Magnetic Field Controlled separating mechanism that the utility model proposes, comprises coding rotary disk mechanism, magnet open-and-close mechanism and wiper mechanism; Described magnet open-and-close mechanism is arranged in coding rotary disk mechanism, and described wiper mechanism is distributed in the surrounding of coding rotary disk mechanism; Be placed on the nanometer magnetic bead in the liquid in the reaction cup in coding rotary disk mechanism by the absorption of magnet open-and-close mechanism controlling magnet, by wiper mechanism, the liquid in reaction cup cleaned, complete nanometer magnetic bead and be separated;
The magnetic particle separation mixing mechanism be arranged in coding rotary disk mechanism is utilized to carry out automatic mixing to the liquid in reaction cup, without the need to peripheral hardware mixing structure;
This Magneto separate mechanism is integrated with rotation, automatic liquid-feeding, drawing liquid, automatic pick, open magnet and the automatic several functions such as lifting reaction cup, automatic mixing reaction liquid: adopt stepper motor motor and toothed belt transmission to drive cleaning disc to rotate and go forward one by one, cleaning disc and reaction cup automatic rotation, cleaning disc there is position, 8 holes, often go forward one by one and once rotate position, a hole, the time interval of at every turn going forward one by one is fixed, rotation 45 ° of namely at every turn going forward one by one.Four independently liquid feeding, drawing liquid wiper mechanisms, can realize automatic liquid-feeding, drawing liquid mode and automatically select drawing liquid, liquid feeding number of times neatly, and liquid feeding pin can clean liquid pumping needle automatically, avoids the cross pollution between different test item; The lifting climbing block of ingehious design, can reaction cup segmentation lifting, first arrives mixing height, then is lifted to and gets cup height, getting the convenient pickup in cup position, without the need to other lifting mechanism lifting reaction cup.The magnet slide block of design and cam path make this Magneto separate mechanism can controlling magnet pickup time neatly, mechanism structure is compact, take up room minimum, each moving component is reproducible, and the nanometer magnetic bead achieved on chemiluminescence immune assay equipment is separated and automatic cleaning function.
Achieve multistation separating, washing in same mechanism and be provided with mixing station; when carrying out the motion flow of a certain station; the motion flow of other stations can be carried out simultaneously; not be used in mechanism's peripheral hardware magnetic particle mixing mechanism; do not adopt the multiple same unit of linear distribution; by the rotary motion of code-wheel mechanism, the application principle of camming movement and the mixing of eccentric rotary principle realize above motion flow, and structure is simple and the separating, washing efficiency of equipment is improved.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model;
Fig. 2 is overall diagrammatic cross-section of the present utility model;
Fig. 3 is each working position schematic diagram of cleaning disc of the present utility model;
Fig. 4 is that mechanism structure schematic diagram is washed in cleaning of the present utility model;
Fig. 5 (a), Fig. 5 (b) they are magnet slide block structural representation of the present utility model, wherein, and the front view that Fig. 5 (a) is magnet slide block, the rear view of Fig. 5 (b) magnet slide block;
Fig. 6 is the utility model convexity race structural representation;
Fig. 7 is guide groove structure schematic diagram in the utility model;
Fig. 8 is climbing block close-up schematic view of the present utility model;
Fig. 9 (a), Fig. 9 (b) are the magnetic particle mixing mechanism schematic diagram except elastic pressuring plate external member of the present utility model, and wherein, Fig. 9 (a) is stereographic map, and Fig. 9 (b) is sectional view;
Figure 10 (a), Figure 10 (b) are elastic pressuring plate external member schematic diagram of the present utility model, and wherein, Figure 10 (a) is stereographic map, and Figure 10 (b) is sectional view;
Figure 11 is the scheme of installation of the first zero-bit sensing chip;
Label declaration:
1-reaction cup, 2-gathering sill, 3-fabrication hole, 5-cam path, 9-breach, 11-rotating disk, 12-shaft collar, 13-support nail, 14-is equipped with the bearing seat of bearing, 15-turntable rotation axle, 16-first Timing Belt engaged wheel, 17-first Timing Belt driving wheel, 18-first Timing Belt, 19-first stepper motor, 21-installing plate, 22-fixing support rack, 23-first null pick-up, 24-first zero-bit sensing chip, 25-first null pick-up holder, 31-magnet slide block, 32-permanent magnet, 33-roller, 34-first bearing pin, the 41-axis of guide, 42-angle sheave, 43-cleans slide block, 44-cleaning needle, 45-second driven pulley, 46-second Timing Belt, 47-second synchronous pulley, 48-second null pick-up, 51-second stepper motor, 52-second stepping motor fixing plate, 53-cleans fixed base plate, 61-low order climbing block, 62-high-order climbing block, 70-magnetic particle mixing mechanism, 71-brshless DC motor, 72-motor cabinet, 73-is with the excentric shaft of bearing, 75-mixes turning axle, 77-mixes head, 76-mixes seat, 72-motor cabinet, 74-Compress Spring, 80-elastic pressuring plate external member, 81-elastic pressuring plate mount pad, 82-extension spring, 83-blind rivet, 84-compressing tablet, 85-second bearing pin, 86-set screw.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
As depicted in figs. 1 and 2, a kind of New Magnetic Field Controlled separating mechanism, comprises coding rotary disk mechanism, magnet open-and-close mechanism and wiper mechanism; Described magnet open-and-close mechanism is arranged in coding rotary disk mechanism, and described wiper mechanism is distributed in the surrounding of coding rotary disk mechanism; Be placed on the nanometer magnetic bead in the liquid in the reaction cup in coding rotary disk mechanism by the absorption of magnet open-and-close mechanism controlling magnet, successively the liquid in reaction cup cleaned by wiper mechanism, complete nanometer magnetic bead and be separated;
Described coding rotary disk mechanism comprises rotating disk 11, shaft collar 12, support nail 13, the bearing seat 14 that bearing is housed, turntable rotation axle 15, first Timing Belt engaged wheel 16, first Timing Belt driving wheel 17, first Timing Belt 18, first stepper motor 19, installing plate 21, fixing support rack 22, first null pick-up 23, first zero-bit sensing chip 24 and the first null pick-up holder 25;
Described installing plate 21 is fixed on the top of fixing support rack 22 in horizontal direction, and shaft collar 12 is fixed on installing plate 21 by least two support nails 13; The bearing seat 14 that bearing is housed is arranged on installing plate 21;
Described rotating disk is fixed on the upper end of described turntable rotation axle; Described turntable rotation axle 15 is connected with described bearing fit and the lower end of turntable rotation axle is passed installing plate and is connected with described first Timing Belt engaged wheel 16; Described first Timing Belt driving wheel 17 is connected with the first Timing Belt engaged wheel 16 transmission by the first Timing Belt 18; Described first stepper motor is arranged on fixing support rack sidepiece; Finally turntable rotation is driven by the first Timing Belt driving wheel, the first Timing Belt, the first Timing Belt engaged wheel and turntable rotation axle by the first stepper motor;
Described first null pick-up holder 25 is arranged on the bottom of installing plate 21, and described first null pick-up 23 is arranged on described first null pick-up holder 25, and the first zero-bit sensing chip 24 is arranged on described first Timing Belt engaged wheel 16;
As shown in figure 11, described first zero-bit sensing chip is circular, annulus offers breach 9, driven by motor dial rotation, when the first Timing Belt engaged wheel 16 follows electric machine rotation, the first zero-bit sensing chip shelters from the light path of the first null pick-up 23, when breach forwards the first null pick-up to, the light path of the first null pick-up is not blocked, and now, rotating disk finds initial point.
As shown in Figure 3, rotating disk is provided with eight reaction cup aperture positions, and be respectively and put cup position, get cup position, mixing position and four cleaning positions, each cleaning position has all needed imbibition and liquid feeding.
As shown in Fig. 5 (a), Fig. 5 (b), Fig. 6 and Fig. 7, described rotating disk 11 is evenly provided with the reaction cup aperture for placing response cup 1, and offers the gathering sill 2 for placing magnet slide block 31 below reaction cup aperture;
The cam path 5 that described magnet open-and-close mechanism comprises described magnet slide block 31, permanent magnet 32, roller 33, first bearing pin 34 and is opened on shaft collar; Described permanent magnet 32 setting-in enters in magnet slide block 31, and one end of described first bearing pin 34 is connected with roller 33, and other end close-fitting is arranged in magnet slide block 31; Magnet slide block 31 is pressed permanent magnet 32 and is loaded outwardly in the gathering sill 2 of rotating disk 11, and the roller 33 on described magnet slide block 31 is arranged in the cam path 5 of shaft collar 12; Along with the rotation of rotating disk 11, the roller 33 of magnet slide block rolls along cam path, and magnet slide block carries out radial motion on gathering sill, adsorption reaction cup;
[described cam path for design according to demand, by the Design of length of isometrical section, the time that controlling magnet slide block and reaction cup are adsorbed.】
At magnet slide block 31, the gradient design gradient of permanent magnet 32 side according to the outer cup face of reaction cup is housed, namely the outer draft of reaction cup is 1 °, the end face match machined of magnet slide block 31 becomes 1 ° with level, and permanent magnet 32 is mounted thereto can press close to reaction cup outside surface better.
Described magnetic particle mixing mechanism 70 comprises brshless DC motor 71, motor cabinet 72, the excentric shaft 73 of band bearing, mixing turning axle 75 and mixing 77;
Described motor cabinet 72 is fixed on installing plate 21, described brshless DC motor 71 is arranged on described motor cabinet 72, the rotating shaft of brshless DC motor 71 is connected through the excentric shaft 73 of motor cabinet 72 with band bearing, the excentric shaft 73 of described band bearing, mixing turning axle 75 and mixing 77 is connected successively, mixing head rest is lived reaction cup and is rotated, and realizes mixing;
[when reaction cup moves to mixing position, the mixing head be positioned at below reaction cup carries out eccentric rotary, thus makes reaction cup carry out eccentric rotary thus the material in reaction cup is mixed; ]
As shown in Figure 4, described wiper mechanism comprises the axis of guide 41, angle sheave 42, cleaning sliding shoe 43, cleaning needle 44, second driven pulley 45, second Timing Belt 46, second synchronous pulley 47, Hall element 48, second stepper motor 51, second stepping motor fixing plate 52 and cleaning fixed base plate 53;
[described second driven pulley is formed dress by 2 flange bearing small ends.】
Described second stepping motor fixing plate 52 is vertical to be contained on cleaning fixed base plate 53, described second stepper motor 51 is fixed on the lower end of the second stepping motor fixing plate 52, second synchronous pulley 47 described in described second driving stepper motor, is in transmission connection by the second Timing Belt 46 and is arranged on the second driven pulley 45 of the second stepping motor fixing plate 52 upper end; Described cleaning sliding shoe is provided with cleaning needle 44, and cleaning sliding shoe is fixedly connected with the second Timing Belt, moves up and down with the second Timing Belt; The top of described second stepping motor fixing plate 52 is provided with the second null pick-up, and described second driven pulley is provided with the second zero-bit sensing chip.
[during wiper mechanism work, first must reset and namely look for initial point: the second stepper motor 51 rotates clockwise, by the second toothed belt transmission, drive cleaning sliding shoe 43 and cleaning needle 44 mounted thereto, when the second null pick-up 48 touches the second zero-bit sensing chip, namely complete homing action.
Liquid feeding action: the second stepper motor 51 rotates counterclockwise, by the second toothed belt transmission, drive cleaning sliding shoe 43 and cleaning needle 44 mounted thereto move downward the position of specifying in reaction cup, start toward liquid feeding in reaction cup, in liquid feeding process, the second stepper motor 51 rotates clockwise, cleaning needle 44 moves upward, until reset, need the liquid controlled added by guarantee not to be stained with the outer pin outer wall of cleaning needle in this process, namely the speed of liquid level rising is slower than the speed of cleaning needle lifting.
Drawing liquid action: when having liquid to need to extract in reaction cup, second stepper motor 51 rotates counterclockwise, by the second toothed belt transmission, cleaning sliding shoe 43 and cleaning needle 44 mounted thereto is driven to move downward, now cleaning needle has drawing liquid absorption affinity, ensures to start drawing liquid in reaction cup, in drawing liquid process once contact liquid level, the liquid that need control added by ensureing is not stained with the outer pin outer wall of cleaning needle, i.e. the speed that the speed of cleaning needle lifting declines than liquid level is slow.】
Use cleaning needle to be two-tube cleaning needle, outer tube is liquid feeding pin, and interior pipe is aspirating needle.
As shown in Figure 8, also comprise and to be arranged on shaft collar 12 and through the climbing lifting mechanism of reaction cup movement locus, described climbing lifting mechanism comprises low order climbing block 61 and high-order climbing block 62;
Described climbing block makes for adopting Teflon material;
Be arranged on the mixing 77 of mixing station between described low order climbing block and described high-order climbing block;
The peak of described low order climbing block and the minimum point of high-order climbing block all with mix parallel;
Reaction cup with in dial movement process along low order climbing block climb rise to mixing station mixing head on, climb to rise to get a glass station along high-order climbing block.
[rotary motion of climbing block and rotating disk forms climbing lifting mechanism 60, without the need to other lifting mechanism lifting reaction cup.】
The surface of described climbing lifting mechanism and the bottom arc surface of reaction cup tangent.
Reaction cup has gap in rotating disk putting hole, can to swing and up and down, the bottom arc surface of climbing blocks design and reaction cup is tangent, therefore dial rotation provides rotation to reaction cup, along with rotational response cup arc surface is along climbing block surface sliding, along with the face with climbing block raises, progressively lifting.
As shown in Fig. 9 (a), Fig. 9 (b) He Figure 10 (a), Figure 10 (b), described magnetic particle mixing mechanism is provided with mixing seat 76, and mixing seat is fixed on motor cabinet 72; Described mixing turning axle, through mixing seat, between mixing seat and mixing turning axle, mixing turning axle is set with Compress Spring 74.
Described magnetic particle mixing mechanism is also provided with elastic pressuring plate external member 80, and described elastic pressuring plate external member 80 comprises elastic pressuring plate mount pad 81, extension spring 82, blind rivet 83, compressing tablet 84, second bearing pin 85 and set screw 86;
Described elastic pressuring plate mount pad 81 is fixed on the installing plate 21 of coding rotary disk mechanism 10, described compressing tablet 84 is connected with elastic pressuring plate mount pad 81 by the second bearing pin 85, described set screw 86 screws in elastic pressuring plate mount pad 81 by described compressing tablet 84 jack-up, extension spring 82 one end is hooked on compressing tablet 84, and the other end hooks the blind rivet 83 be fixed on elastic pressuring plate mount pad 81;
Described compressing tablet offers adjustment hole 4, change the height of set screw through adjustment hole 4; The diameter of described adjustment hole 4 is larger than the internal diameter of set screw 86, and less than the external diameter of set screw;
Described set screw is holding screw.
[allen key is utilized to pass adjustment hole 4 turn set screw, change the screw-in depth of set screw in elastic pressuring plate mount pad, thus change the angle of compressing tablet and surface level, namely the pivot angle of compressing tablet 84 is regulated, reaction cup is made to arrive mixing position smoothly along compressing tablet direction, in blending process, compressing tablet blocks reaction cup, prevents reaction cup in blending process from ejecting from putting hole.】
Cleaning needle in described wiper mechanism is two-tube cleaning needle, and outer tube is liquid feeding pin, and interior pipe is liquid pumping needle.
Also comprise the angle sheave 42 being arranged on cleaning sliding shoe both sides and the axis of guide 41 being arranged on the second stepping motor fixing plate 52 both sides in described wiper mechanism, the inner side of angle sheave contacts with the axis of guide.
[the second stepper motor rotates, and drives Timing Belt motion, cleans sliding shoe 43 with Timing Belt by angle sheave 42 and the axis of guide 41 relative sliding, angle sheave and guiding shaft design, makes moving up and down of cleaning slide block more stable and accurate.】
At least comprise a set of wiper mechanism.
[overlap wiper mechanism more, form multistage synchronous cleaning, save scavenging period, strengthen cleaning dynamics.】
[adopt stepper motor and toothed belt transmission to drive turntable rotation to go forward one by one, reaction cup, with turntable rotation, rotating disk has position, 8 holes, and often go forward one by one and once rotate position, a hole, the time interval of at every turn going forward one by one is fixed, rotation 45 ° of namely at every turn going forward one by one.Four independently liquid feeding, drawing liquid wiper mechanisms, can realize automatic liquid-feeding, drawing liquid mode and automatically select drawing liquid, liquid feeding number of times neatly, and liquid feeding pin can clean liquid pumping needle automatically, avoids the cross pollution between different test item; The climbing lifting mechanism of design, can make reaction cup segmentation lifting, first arrives mixing height, then is lifted to and gets cup height, getting the convenient pickup in cup position, without the need to other lifting mechanism lifting reaction cup.Simultaneously this Magneto separate mechanism also can controlling magnet pickup time neatly, and mechanism structure is compact, takes up room minimum, and each moving component is reproducible, and the nanometer magnetic bead achieved on chemiluminescence immune assay equipment is separated and automatic cleaning function.】
Be understandable that; for the person of ordinary skill of the art; can make other various corresponding change and distortion according to the technical solution of the utility model and technical conceive, and all these change and be out of shape the protection domain that all should belong to the accompanying claim of the utility model.
Claims (9)
1. a New Magnetic Field Controlled separating mechanism, is characterized in that, comprises coding rotary disk mechanism, magnet open-and-close mechanism and wiper mechanism; Described magnet open-and-close mechanism is arranged in coding rotary disk mechanism, and described wiper mechanism is distributed in the surrounding of coding rotary disk mechanism; Be placed on the nanometer magnetic bead in the liquid in the reaction cup in coding rotary disk mechanism by the absorption of magnet open-and-close mechanism controlling magnet, successively the liquid in reaction cup cleaned by wiper mechanism, complete nanometer magnetic bead and be separated;
Described coding rotary disk mechanism comprises rotating disk (11), shaft collar (12), support nail (13), the bearing seat (14) of bearing is housed, turntable rotation axle (15), first Timing Belt engaged wheel (16), first Timing Belt driving wheel (17), first Timing Belt (18), first stepper motor (19), installing plate (21), fixing support rack (22), first null pick-up (23), first zero-bit sensing chip (24) and the first null pick-up holder (25),
Described installing plate (21) is fixed on the top of fixing support rack (22) in horizontal direction, and shaft collar (12) is fixed on installing plate (21) by least two support nails (13); The bearing seat (14) that bearing is housed is arranged on installing plate (21);
Described rotating disk is fixed on the upper end of described turntable rotation axle; Described turntable rotation axle (15) is connected with described bearing fit and the lower end of turntable rotation axle is passed installing plate and is connected with described first Timing Belt engaged wheel (16); Described first Timing Belt driving wheel (17) is connected with the first Timing Belt engaged wheel (16) transmission by the first Timing Belt (18); Described first stepper motor is arranged on fixing support rack sidepiece; Finally turntable rotation is driven by the first Timing Belt driving wheel, the first Timing Belt, the first Timing Belt engaged wheel and turntable rotation axle by the first stepper motor;
Described first null pick-up holder (25) is arranged on the bottom of installing plate (21), described first null pick-up (23) is arranged on described first null pick-up holder (25), and the first zero-bit sensing chip (24) is arranged on described first Timing Belt engaged wheel (16);
Described rotating disk (11) is evenly provided with the reaction cup aperture for placing response cup (1), and offers the gathering sill (2) for placing magnet slide block (31) below reaction cup aperture;
The cam path (5) that described magnet open-and-close mechanism comprises described magnet slide block (31), permanent magnet (32), roller (33), the first bearing pin (34) and is opened on shaft collar; Described permanent magnet (32) setting-in enters in magnet slide block (31), and one end of described first bearing pin (34) is connected with roller (33), and other end close-fitting is arranged in magnet slide block (31); Magnet slide block (31) loads in the gathering sill (2) of rotating disk (11) outwardly by permanent magnet (32), and the roller (33) on described magnet slide block (31) is arranged in the cam path (5) of shaft collar (12); Along with the rotation of rotating disk (11), the roller (33) of magnet slide block rolls along cam path, and magnet slide block carries out radial motion on gathering sill, adsorption reaction cup;
Described wiper mechanism comprises the axis of guide (41), angle sheave (42), cleaning sliding shoe (43), cleaning needle (44), the second driven pulley (45), the second Timing Belt (46), the second synchronous pulley (47), Hall element (48), the second stepper motor (51), the second stepping motor fixing plate (52) and cleaning fixed base plate (53);
Described second stepping motor fixing plate (52) is vertical to be contained in cleaning fixed base plate (53), described second stepper motor (51) is fixed on the lower end of the second stepping motor fixing plate (52), second synchronous pulley (47) described in described second driving stepper motor, is in transmission connection by the second Timing Belt (46) and is arranged on second driven pulley (45) of the second stepping motor fixing plate (52) upper end; Described cleaning sliding shoe is provided with cleaning needle (44), and cleaning sliding shoe is fixedly connected with the second Timing Belt, moves up and down with the second Timing Belt; The top of described second stepping motor fixing plate (52) is provided with the second null pick-up, and described second driven pulley is provided with the second zero-bit sensing chip.
2. New Magnetic Field Controlled separating mechanism according to claim 1, it is characterized in that, also comprise the angle sheave (42) being arranged on cleaning sliding shoe both sides and the axis of guide (41) being arranged on the second stepping motor fixing plate (52) both sides in described wiper mechanism, the inner side of angle sheave contacts with the axis of guide.
3. New Magnetic Field Controlled separating mechanism according to claim 2, is characterized in that, the cleaning needle in described wiper mechanism is two-tube cleaning needle, and outer tube is liquid feeding pin, and interior pipe is liquid pumping needle.
4. New Magnetic Field Controlled separating mechanism according to claim 3, is characterized in that, at least comprises a set of wiper mechanism.
5. New Magnetic Field Controlled separating mechanism according to claim 1, it is characterized in that, also comprise the magnetic particle mixing mechanism be arranged in coding rotary disk mechanism, described magnetic particle mixing mechanism comprises brshless DC motor (71), motor cabinet (72), the excentric shaft (73) being with bearing, mixing turning axle (75) and mixing head (77);
Described motor cabinet (72) is fixed on installing plate (21), described brshless DC motor (71) is arranged on described motor cabinet (72), the rotating shaft of brshless DC motor (71) is connected through the excentric shaft (73) of motor cabinet (72) with band bearing, the excentric shaft (73) of described band bearing, mixing turning axle (75) and mixing head (77) are connected successively, mixing head rest is lived reaction cup and is rotated, and realizes mixing.
6. New Magnetic Field Controlled separating mechanism according to claim 5, it is characterized in that, also comprise that to be arranged on shaft collar (12) upper and through the climbing lifting mechanism of reaction cup movement locus, described climbing lifting mechanism comprises low order climbing block (61) and high-order and to climb block (62);
Be arranged on the mixing head (77) of mixing station between described low order climbing block and described high-order climbing block;
The peak of described low order climbing block and the minimum point of high-order climbing block all with mix parallel;
Reaction cup with in dial movement process along low order climbing block climb rise to mixing station mixing head on, climb to rise to get a glass station along high-order climbing block.
7. New Magnetic Field Controlled separating mechanism according to claim 6, is characterized in that, the surface of described climbing lifting mechanism and the bottom arc surface of reaction cup tangent.
8. New Magnetic Field Controlled separating mechanism according to claim 5, is characterized in that, described magnetic particle mixing mechanism is provided with mixing seat (76), and mixing seat is fixed on motor cabinet (72); Described mixing turning axle, through mixing seat, between mixing seat and mixing turning axle, mixing turning axle is set with Compress Spring (74).
9. New Magnetic Field Controlled separating mechanism according to claim 5, it is characterized in that, described magnetic particle mixing mechanism is also provided with elastic pressuring plate external member (80), and described elastic pressuring plate external member (80) comprises elastic pressuring plate mount pad (81), extension spring (82), blind rivet (83), compressing tablet (84), the second bearing pin (85) and set screw (86);
Described elastic pressuring plate mount pad (81) is fixed on the installing plate (21) of coding rotary disk mechanism (10), described compressing tablet (84) is connected with elastic pressuring plate mount pad (81) by the second bearing pin (85), described set screw (86) screws in elastic pressuring plate mount pad (81) by described compressing tablet (84) jack-up, extension spring (82) one end is hooked on compressing tablet (84), and the other end hooks the blind rivet (83) be fixed on elastic pressuring plate mount pad (81);
Described compressing tablet offers adjustment hole (4), change the height of set screw through adjustment hole (4); The diameter of described adjustment hole (4) is larger than the internal diameter of set screw (86), and less than the external diameter of set screw;
Described set screw is holding screw.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420555863.0U CN204142550U (en) | 2014-09-25 | 2014-09-25 | A kind of New Magnetic Field Controlled separating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420555863.0U CN204142550U (en) | 2014-09-25 | 2014-09-25 | A kind of New Magnetic Field Controlled separating mechanism |
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| CN204142550U true CN204142550U (en) | 2015-02-04 |
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| CN201420555863.0U Active CN204142550U (en) | 2014-09-25 | 2014-09-25 | A kind of New Magnetic Field Controlled separating mechanism |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297039A (en) * | 2014-09-25 | 2015-01-21 | 深圳市奥特库贝科技有限公司 | Novel magnetic separation mechanism |
| CN110076155A (en) * | 2018-01-25 | 2019-08-02 | 深圳市新产业生物医学工程股份有限公司 | Cleaning assembly, wiper mechanism and chemiluminescence detector |
| WO2021007853A1 (en) * | 2019-07-18 | 2021-01-21 | 烟台艾德康生物科技有限公司 | Fully-automatic magnetic bead cleaning device |
| CN114643128A (en) * | 2022-03-25 | 2022-06-21 | 北京唯公医疗技术有限公司 | Test tube magnetic separation and belt cleaning device |
| CN114965280A (en) * | 2022-07-28 | 2022-08-30 | 南京仁迈生物科技有限公司 | Reaction cup magnetic bead separation module of chemiluminescence detector |
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2014
- 2014-09-25 CN CN201420555863.0U patent/CN204142550U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297039A (en) * | 2014-09-25 | 2015-01-21 | 深圳市奥特库贝科技有限公司 | Novel magnetic separation mechanism |
| CN104297039B (en) * | 2014-09-25 | 2017-01-11 | 深圳市奥特库贝科技有限公司 | Novel magnetic separation mechanism |
| CN110076155A (en) * | 2018-01-25 | 2019-08-02 | 深圳市新产业生物医学工程股份有限公司 | Cleaning assembly, wiper mechanism and chemiluminescence detector |
| CN110076155B (en) * | 2018-01-25 | 2024-04-26 | 深圳市新产业生物医学工程股份有限公司 | Cleaning assembly, cleaning mechanism and chemiluminescent detector |
| WO2021007853A1 (en) * | 2019-07-18 | 2021-01-21 | 烟台艾德康生物科技有限公司 | Fully-automatic magnetic bead cleaning device |
| CN112567250A (en) * | 2019-07-18 | 2021-03-26 | 烟台艾德康生物科技有限公司 | Full-automatic magnetic bead belt cleaning device |
| CN114643128A (en) * | 2022-03-25 | 2022-06-21 | 北京唯公医疗技术有限公司 | Test tube magnetic separation and belt cleaning device |
| CN114965280A (en) * | 2022-07-28 | 2022-08-30 | 南京仁迈生物科技有限公司 | Reaction cup magnetic bead separation module of chemiluminescence detector |
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