CN102172910B - Device for fetching and releasing magnetic sleeve - Google Patents
Device for fetching and releasing magnetic sleeve Download PDFInfo
- Publication number
- CN102172910B CN102172910B CN201110028085A CN201110028085A CN102172910B CN 102172910 B CN102172910 B CN 102172910B CN 201110028085 A CN201110028085 A CN 201110028085A CN 201110028085 A CN201110028085 A CN 201110028085A CN 102172910 B CN102172910 B CN 102172910B
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- magnetosheath
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- nut
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- 230000005540 biological transmission Effects 0.000 claims abstract description 11
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- 230000008901 benefit Effects 0.000 abstract description 2
- 239000011324 bead Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000007399 DNA isolation Methods 0.000 description 1
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Abstract
The invention discloses a device for fetching and releasing a magnetic sleeve. The positive rotation and the negative rotation of a stepping motor and the transmission of a nut, a screw mechanism, a connecting rod mechanism, a left rotation rod and a right rotation rod which are successively connected are utilized to drive hooklets fixed on the left rotation rod and the right rods to inwards fold and outwards open so as to achieve the purpose of fetching and releasing the magnetic sleeve. A nut block in the transmission mechanism in the device is linearly spaced by a linear sliding rail; and in addition, a mechanism composed of a catch and a photoelectric sensor is adopted for vertically spacing, so that the action of the hooklets on releasing and fetching in the structure of the device is more accurate. The device has the advantages of simple structure and principle and low cost, and equipment parts are easy to machine.
Description
Technical field
The present invention relates to carry out sample treatment and checkout equipment field, particularly relate to a kind of device that is used to grasp and discharge magnetosheath by magnetic bead.
Background technology
In the last few years, magnetic bead was in clinical and biomedical research, and the animal doctor diagnoses; Pharmacogenomics, the quality-monitoring of food, beverage and water, medical jurisprudence; The quality testing of Plants and Seeds (transgenosis), the discovery of biomarker, Application in Proteomics is more and more widely; In the full-automatic extraction of DNA isolation/RNA, albumen, cell and virus and enrichment (concentrating), outstanding behaviours arranged also.
Normally utilize the magneto bar magnet to carry out the absorption and the release of magnetic bead.Utilizing the magneto bar magnet to carry out to be applied to this equipment of magnetosheath in the equipment of absorption and release of magnetic bead.Utilize magnetosheath to isolate, avoid cross pollution bar magnet and sample; The magnetic bead that is adsorbed is broken away from from bar magnet; Can also carry out stirring and evenly mixing to reagent.
In some existing extractings with discharge in the magnetosheath equipment, two motor-driven of the usefulness that has grasp and discharge magnetosheath through the transmission of intermediate link devices such as decelerator, but this mode cost are higher; Motor-driven of the usefulness that has through the transmission of intermediate link, finally realized the extracting and the release of magnetosheath by rack-and-pinion, but this mode structure is complicated, and cost is high, and rack-and-pinion processing is very loaded down with trivial details.
Summary of the invention
Technical problem to be solved by this invention is to be difficult for and the higher shortcoming of cost to device structure complicacy, the processing of prior art, and the device that is used to grasp and discharge magnetosheath that a kind of structural principle of invention is simple, cost is lower and part is convenient to process.
The technical problem that the present invention requires to solve can realize through following technical scheme:
A kind of device that is used to grasp and discharge magnetosheath comprises a stepper motor, and one is used to transmit the transmission mechanism of stepper motor power, and one is used to grasp and discharge the grasping mechanism of magnetosheath, and one is used to drive the linkage that grasping mechanism moves and is connected with transmission mechanism; Said transmission mechanism is a screw-and-nut mechanism, and the lower end of said screw rod links to each other with the axle of stepper motor, and the upper end is inserted in the hole, and said nut is a nut block, is enclosed within on the screw rod.
Said stepper motor is fixed on the installing plate; Said installing plate is fixed on the base plate lower end that is positioned at a side, and said screw rod is connected with stepper motor through shaft coupling, and the upper end is inserted in the hole of a contiguous block; Said nut also is fixed on the slide block of linear slide rail, and linear slide rail is fixed in the groove on the base plate.
Said linkage comprises first bearing pin, second bearing pin, first group of fork, second group of fork; Said first bearing pin is fixed on the nut block; Said first group of fork has two; Be symmetrically arranged, an end of two forks is connected on first bearing pin, and said second group of fork also is two; Be symmetrically arranged, the other end of said first group of fork connects through the end of second bearing pin respectively at second group of fork.
Said grasping mechanism comprises left and right bull stick, little hook; Said left and right bull stick all passes the hole that is positioned at magnetosheath fixed mount two parallel frames, and is positioned at the magnetosheath both sides, and the end of left and right bull stick is separately fixed on two second group of forks; Said little hook is fixed on the left and right bull stick, and has at least four little hooks to be positioned on four angles of magnetosheath.
The said device that is used to grasp and discharges magnetosheath also has the nut block position-limit mechanism, and said nut block position-limit mechanism comprises the catch that is fixed on the nut block, photoelectric sensor, optocoupler mount pad; Said photoelectric sensor and optocoupler mount pad are fixed on the side of base plate, said catch one Edge Bend, and dogleg section puts in the groove on the photoelectric sensor.
Based on design philosophy of the present invention, can extend to all and undertaken in the equipment of sample treatment and detection by magnetic bead.
The present invention compared with prior art has following characteristics: structural principle of the present invention is simple, cost is lower, part is easy to processing.
Description of drawings
Fig. 1 is a structural front view of the present invention.
Fig. 2 is a structure vertical view of the present invention.
Fig. 3 is a structure left view of the present invention.
Among the figure, 1-base plate, 2-installing plate, 3-shaft coupling, 4-screw rod, 5-nut block, 6-first bearing pin, 7-second bearing pin, first group of fork of 8-, second group of fork of 9-, 10-magnetosheath fixed mount, 11-contiguous block, 12-light idol mount pad, 13-catch, 14-left-hand rotation bar, 15 right-hand rotation bars, the little hook of 16-, 17-axle sleeve, 18-stepper motor, 19-linear slide rail, 20-photoelectric sensor, 21-magnetosheath.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
Like Fig. 1, Fig. 2, shown in Figure 3, stepper motor 18 is fixed on the installing plate 2, and installing plate 2 is fixed on the lower end of base plate 1; The lower end of screw rod 4 is connected with the axle of shaft coupling 3 and stepper motor 18, and the upper end is being overlapped in the hole that axle sleeve 17 is inserted in contiguous block 11; Be fixed on the slide block of linear slide rail 19 with screw rod 4 nut engaged pieces 5, linear slide rail 19 is fixed in the groove on the base plate 1; Fixedly catch 13, first bearing pin 6 and two first group of forks 8 respectively on the nut block 5; First group of fork 8 is connected through second bearing pin 7 with second group of fork 9; Left-hand rotation bar 14 is inserted in the hole on magnetosheath fixed mount 10 both sides with right-hand rotation bar 15, and their rear end is separately fixed in the hole of fork 29, and four little hooks 16 are adorned above that respectively in twos, and four little hooks 16 lay respectively on four angles of magnetosheath 21; When little hook 16 was in seized condition, magnetosheath 21 just was fitted in magnetosheath fixed mount 10 bottoms; Photoelectric sensor 20 is fixed on the side of base plate 1 together with light idol mount pad 12, and catch 13 parts are inserted in the groove on the photoelectric sensor 20.
The device original state is as shown in Figure 1, and catch 13 rests on the lowest positions of groove on the photoelectric sensor 20.When stepper motor 18 reverses, after the transmission through shaft coupling 3 and screw rod 4, drive nut block 5 and move up, nut block 5 has the spacing of linear slide rail 19, can only upper and lowerly move, and can not produce the motion of other directions, guarantees the accurate of grasping mechanism running; Nut block 5 moves up, and the linkage that drives first group of fork 8 and second group of fork 9 composition makes progress, outwards motion, and then drives left- hand rotation bar 14 and 15 rotations of right-hand rotation bar; Thereby driving little hook 16 opens to both sides; When catch 13 reached the position, the top of groove on the photoelectric sensor 20, little hook 16 discharged magnetosheath 21 fully, simultaneously; Photoelectric sensor sends instruction, stops stepper motor and rotates.If will grasp magnetosheath 21, under the open state in both sides, stepper motor 18 is just changeing and is getting final product at little hook 16; When catch 13 reached the lowest positions of groove on the photoelectric sensor 20, little hook 16 grasped magnetosheath 21 fully, simultaneously; Photoelectric sensor sends instruction, stops stepper motor and rotates.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. device that is used to grasp and discharge magnetosheath; Comprise a stepper motor; One is used to transmit the transmission mechanism of stepper motor power, and one is used to grasp and discharge the grasping mechanism of magnetosheath, and one is used to drive the linkage that grasping mechanism moves and is connected with transmission mechanism; It is characterized in that said transmission mechanism is a screw-and-nut mechanism, the lower end of said screw rod links to each other with the axle of stepper motor; The upper end is inserted in the hole, and said nut is a nut block, is enclosed within on the screw rod; Said stepper motor is fixed on the installing plate, and said installing plate is fixed on the base plate lower end that is positioned at a side, and said screw rod is connected with stepper motor through shaft coupling; The upper end is inserted in the hole of a contiguous block, and said nut also is fixed on the slide block of linear slide rail, and linear slide rail is fixed in the groove on the base plate; Said linkage comprises first bearing pin, second bearing pin, first group of fork, second group of fork; Said first bearing pin is fixed on the nut block; Said first group of fork has two; Be symmetrically arranged, an end of two forks is connected on first bearing pin, and said second group of fork also is two; Be symmetrically arranged, the other end of said first group of fork connects through the end of second bearing pin respectively at second group of fork; Said grasping mechanism comprises left and right bull stick, little hook; Said left and right bull stick all passes the hole that is positioned at magnetosheath fixed mount two parallel frames, and is positioned at the magnetosheath both sides, and the end of left and right bull stick is separately fixed on two second group of forks; Said little hook is separately fixed on the left and right bull stick, and has at least four little hooks to be positioned at four angles of magnetosheath.
2. a kind of device that is used to grasp and discharge magnetosheath as claimed in claim 1 is characterized in that, also has the nut block position-limit mechanism on the said device, and said nut block position-limit mechanism comprises the catch that is fixed on the nut block, photoelectric sensor, optocoupler mount pad; Said photoelectric sensor and optocoupler mount pad are fixed on the side of base plate, said catch one Edge Bend, and dogleg section puts in the groove on the photoelectric sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028085A CN102172910B (en) | 2011-01-26 | 2011-01-26 | Device for fetching and releasing magnetic sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028085A CN102172910B (en) | 2011-01-26 | 2011-01-26 | Device for fetching and releasing magnetic sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102172910A CN102172910A (en) | 2011-09-07 |
| CN102172910B true CN102172910B (en) | 2012-10-17 |
Family
ID=44516253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110028085A Active CN102172910B (en) | 2011-01-26 | 2011-01-26 | Device for fetching and releasing magnetic sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102172910B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805498B (en) * | 2013-08-23 | 2015-11-25 | 常州金麦格生物技术有限公司 | Grabbing device and there is the instrument of extraction biologically active substance of this grabbing device |
| CN103849549B (en) * | 2014-03-19 | 2016-07-06 | 常州金麦格生物技术有限公司 | For extracting grabbing device and the instrument thereof of the instrument of bioactive substance |
| CN108772358A (en) * | 2018-04-27 | 2018-11-09 | 泰州泽成生物技术有限公司 | A kind of new automatic more reagent strip cleaning magnetic beads mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1609648A1 (en) * | 1988-07-12 | 1990-11-30 | Предприятие П/Я А-7690 | Adjustable gripper |
| CN1506198A (en) * | 2002-12-09 | 2004-06-23 | 上海凌声科技有限公司 | Screw fixture for manipulator |
| CN1800865A (en) * | 2004-12-04 | 2006-07-12 | 飞而康公司 | Cantalever board conveying equipment |
| CN201136149Y (en) * | 2007-12-28 | 2008-10-22 | 吕筱军 | Mechanical arm of liquid-auto-dropping machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01210285A (en) * | 1988-02-19 | 1989-08-23 | Fuji Electric Co Ltd | Robot hand with gripping force detection function |
-
2011
- 2011-01-26 CN CN201110028085A patent/CN102172910B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1609648A1 (en) * | 1988-07-12 | 1990-11-30 | Предприятие П/Я А-7690 | Adjustable gripper |
| CN1506198A (en) * | 2002-12-09 | 2004-06-23 | 上海凌声科技有限公司 | Screw fixture for manipulator |
| CN1800865A (en) * | 2004-12-04 | 2006-07-12 | 飞而康公司 | Cantalever board conveying equipment |
| CN201136149Y (en) * | 2007-12-28 | 2008-10-22 | 吕筱军 | Mechanical arm of liquid-auto-dropping machine |
Non-Patent Citations (1)
| Title |
|---|
| JP平1-210285A 1989.08.23 |
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| Publication number | Publication date |
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| CN102172910A (en) | 2011-09-07 |
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Effective date of registration: 20201012 Address after: No. 699, Huifeng North Road, Fengxian District, Shanghai, 201403 Patentee after: Shanghai Changrun Biotechnology Co., Ltd Address before: 201403 No. 699, Huifeng North Road, Fengxian District modern agriculture park, Shanghai Patentee before: SHANGHAI HEALTHDIGIT BIOCHIP Co.,Ltd. |