CN113970649A - Lifting device is prevented in sample cell pushing down - Google Patents
Lifting device is prevented in sample cell pushing down Download PDFInfo
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- CN113970649A CN113970649A CN202011362451.1A CN202011362451A CN113970649A CN 113970649 A CN113970649 A CN 113970649A CN 202011362451 A CN202011362451 A CN 202011362451A CN 113970649 A CN113970649 A CN 113970649A
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- China
- Prior art keywords
- sample
- pressing block
- lifting device
- lifting
- sample tube
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
- G01N2035/0401—Sample carriers, cuvettes or reaction vessels
- G01N2035/0429—Sample carriers adapted for special purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
- G01N2035/0474—Details of actuating means for conveyors or pipettes
- G01N2035/0491—Position sensing, encoding; closed-loop control
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a sample tube downward-pressing anti-lifting device, which solves the technical problem that a sample needle is prevented from being lifted and carried when being pulled out in the process of sample tube puncture sampling, and comprises a downward-pressing block which is positioned above a sample rack and can stop the sample tube from moving upwards, wherein the downward-pressing block is connected with a lifting device for moving the downward-pressing block upwards and downwards; when the lifting device is lifted, the lower pressing block is lifted away from the sample rack, and when the lifting device is reset, the lower pressing block is contacted with the sample rack and prevents the sample rack from being lifted away; the technical scheme that the lower pressing block is provided with a through space for the sampling of the sample needle is adopted, so that the problem is solved well, and the lower pressing block can be used for sampling of a sample tube.
Description
Technical Field
The invention relates to the field of automation devices, in particular to a sample tube pressing and lifting prevention device.
Background
The puncture sampling function is often used in many automated analysis equipment and laboratory equipment, and the sample test tube that carries the sample frame is punctured the sample after transmission mechanism sends to the sample site. The sample needle needs to be lifted and pulled out after penetrating into the rubber tube cap to suck the sample, but the inherent friction force of the rubber cap and the puncture needle can lift and bring the sample tube together, so the technical problem exists.
The invention provides a sample tube pressing anti-lifting device based on the fact that a pressing device is needed to limit lifting of a sample tube to enable the sample tube to be stably kept in a relevant hole position of a sample frame. The action of pressing and lifting is completed by adopting a simple and reliable action mechanism, and the function of binding the sample tube is effectively completed.
Disclosure of Invention
The invention aims to solve the technical problem that a sample needle is lifted and carried when being pulled out in the process of puncturing and sampling the sample tube in the prior art. The utility model provides a new sample cell pushes down and prevents lifting device, this sample cell pushes down and prevents lifting device has adopted simple reliable actuating mechanism to accomplish the action of pushing down, lifting, the effectual characteristics of accomplishing the constraint function to the sample cell.
In order to solve the technical problems, the technical scheme is as follows:
a sample tube downward-pressing anti-lifting device is characterized in that a sample tube is placed on a sample frame, the sample tube is sampled through a sample needle, the sample tube downward-pressing anti-lifting device comprises a lower pressing block which is positioned above the sample frame and can stop the sample tube from moving upwards, and the lower pressing block is connected with a lifting device used for moving the lower pressing block upwards and downwards; when the lifting device is lifted, the lower pressing block is lifted away from the sample rack, and when the lifting device is reset, the lower pressing block is contacted with the sample rack and prevents the sample rack from being lifted away; the lower pressing block is provided with a passing space for sampling by the sample needle.
In the above scheme, for optimization, further, the lifting device comprises a lifting rod connected with the lower pressing block, and the lifting rod is symmetrically arranged with the vertical center line of the lower pressing block; the lifting rod penetrates through the mechanism supporting block and then is connected to the lifting roller; a pressing spring is arranged between the mechanism supporting block and the lifting roller; the lifting roller is connected with the transmission shaft through an eccentric wheel; the transmission shaft is connected with a speed reducing motor through a coupler; the sample tube pressing anti-lifting device is further provided with a pressing spring which is connected and arranged between the mechanism supporting block and the transmission shaft.
Furthermore, the space for the sample needle to pass through for sampling is smaller than the sampling hole of the sample tube.
In the invention, the pressing block is pressed: the sample tube lifting device is mainly used for contacting the sample tube and applying a downward pressure to prevent the sample tube from being lifted. A speed reducing motor: is a driving component for completing the lifting action. Lifting rods: is a supporting component for finishing the transmission of the lower pressing block and the action. Pressing down the spring: is the primary component that applies pressure. Eccentric wheel: is a core component for finishing the lifting action. A transmission shaft: is the main part for keeping the synchronous action of the two ends and the torque transmission.
According to the invention, the transmission shaft is driven by the speed reducing motor to enable the eccentric wheels at two ends to rotate and enable the two lifting idler wheels to synchronously move upwards, and at the moment, the lifting rods at two ends overcome the pressure of the pressing spring and are lifted together; when the high point of the eccentric wheel is tangent to the lifting roller wheel, the lower pressing block is lifted to the highest point, and the sample rack can freely enter and exit, namely the reset state of the lower pressing mechanism. When the speed reducing motor is continuously rotated, the eccentric wheel rotates to the lowest point from the highest point through 180 degrees, and meanwhile, the lifting roller, the lifting rod and the sample tube are synchronously descended under the pressure of the pressing spring, so that the sample tube is pressed by the pressing block. At this time, the sample needle can be pulled out after puncture sampling is carried out, and the lower pressing block prevents the sample tube from being lifted.
The invention has the beneficial effects that: the invention completes the actions of pressing and lifting through a simple structure and effectively completes the function of restraining the sample tube. When having realized sample needle sample, the sample cell can not be taken away the effect.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of a sample tube pressing and lifting prevention device in an embodiment.
Fig. 2 is a schematic diagram of a second apparatus for preventing the sample tube from being pressed downward in the embodiment.
Fig. 3 is a schematic diagram of the sample tube lifting prevention device in the embodiment.
FIG. 4 is a schematic view of the sample tube pressing-down and lifting-prevention device in the embodiment.
In the figure, 1, press block; 2. a sample tube; 3. a sample holder; 4. a mechanism support block; 5. a reduction motor; 6. a coupling; 7. a lifting rod; 8. pressing down the spring; 9. lifting rollers; 10. an eccentric wheel; 11. a drive shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment provides a sample tube downward-pressing anti-lifting device, as shown in fig. 1, a sample tube 2 is placed on a sample rack 3, the sample tube 2 is sampled through a sample needle, the sample tube downward-pressing anti-lifting device comprises a lower pressing block 1 which is positioned above the sample rack 3 and can stop the upward movement of the sample tube 2, and the lower pressing block 1 is connected with a lifting device which is used for moving the lower pressing block 1 up and down; when the lifting device is lifted up, the lower pressing block 1 is lifted away from the sample rack 3, when the lifting device is reset, the lower pressing block 1 is contacted with the sample rack 3, and the lower pressing block 1 prevents the sample rack 3 and the sample tube 2 from being lifted away; the lower pressing block 1 is provided with a passing space for sampling by a sample needle.
Specifically, the lifting device comprises a lifting rod 7 connected with the lower pressing block 1, and the lifting rod 7 is symmetrically arranged with the vertical center line of the lower pressing block 1; the lifting rod 7 penetrates through the mechanism supporting block 4 and then is connected to the lifting roller 9; a pressing spring 8 is arranged between the mechanism supporting block 4 and the lifting roller 9; the lifting roller 9 is connected with a transmission shaft 11 through an eccentric wheel 10; the transmission shaft 11 is connected with a speed reducing motor 5 through a coupler 6; the pressing spring 8 is connected and arranged between the mechanism supporting block 4 and the transmission shaft 11.
Specifically, the passage space for the sampling needle to sample is smaller than the sampling hole of the sample tube 2.
As shown in fig. 3, the transmission shaft 11 is driven by the speed reducing motor 5 to rotate the eccentric wheels 10 at the two ends and move the two lifting rollers 9 upwards synchronously, and the lifting rods 7 at the two ends are lifted together against the pressure of the pressing spring 8; when the high point of the eccentric wheel 10 is tangent to the lifting roller 9, the lower pressing block 1 is lifted to the highest point, and the sample rack 3 can freely enter and exit, namely, the reset state of the lower pressing mechanism. When the speed reducing motor 5 continues to rotate, the eccentric wheel 10 rotates from the highest point to the lowest point through 180 degrees as shown in fig. 4, and meanwhile, the lifting roller 9, the lifting rod 7 and the pressure of the pressing spring 8 synchronously descend, so that the pressing block 1 presses the sample tube 2. At this time, the sample needle can be pulled out after the puncture sampling is carried out, and the lower pressing block 1 prevents the sample tube 2 from being lifted.
The embodiment is applied to the functions of pushing down the sample tube during the sampling and puncturing process of the sample tube of an automatic analyzer and laboratory equipment so that the sample tube is not lifted by the sample needle, and the constraint on the sample tube and the sample rack and the posture stability of the sample tube and the sample rack are kept when the equipment is used for sampling.
Although the illustrative embodiments of the present invention have been described above to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is apparent to those skilled in the art that all the inventive concepts using the present invention are protected as long as they can be changed within the spirit and scope of the present invention as defined and defined by the appended claims.
Claims (3)
1. The utility model provides a hoisting device is prevented to sample cell pushing down, the sample cell is placed on the sample frame, and the sample cell takes a sample through the sample needle, its characterized in that: the sample tube downward-pressing anti-lifting device comprises a downward-pressing block which is positioned above the sample frame and can stop the upward movement of the sample tube, and the downward-pressing block is connected with a lifting device used for moving the downward-pressing block up and down; when the lifting device is lifted, the lower pressing block is lifted away from the sample rack, and when the lifting device is reset, the lower pressing block is contacted with the sample rack and prevents the sample rack from being lifted away; the lower pressing block is provided with a passing space for sampling by the sample needle.
2. The sample tube push-down anti-lifting device of claim 1, wherein: the lifting device comprises a lifting rod connected with the lower pressing block, and the lifting rod is symmetrically arranged with the vertical center line of the lower pressing block; the lifting rod penetrates through the mechanism supporting block and then is connected to the lifting roller; a pressing spring is arranged between the mechanism supporting block and the lifting roller; the lifting roller is connected with the transmission shaft through an eccentric wheel; the transmission shaft is connected with a speed reducing motor through a coupler; the sample tube pressing anti-lifting device is further provided with a pressing spring which is connected and arranged between the mechanism supporting block and the transmission shaft.
3. The sample tube push-down anti-lifting device of claim 1, wherein: the space for the sample needle to pass through for sampling is smaller than the sampling hole of the sample tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011362451.1A CN113970649A (en) | 2020-11-28 | 2020-11-28 | Lifting device is prevented in sample cell pushing down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011362451.1A CN113970649A (en) | 2020-11-28 | 2020-11-28 | Lifting device is prevented in sample cell pushing down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113970649A true CN113970649A (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011362451.1A Pending CN113970649A (en) | 2020-11-28 | 2020-11-28 | Lifting device is prevented in sample cell pushing down |
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| CN (1) | CN113970649A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH063360A (en) * | 1992-06-22 | 1994-01-11 | Syst Sutatsuku:Kk | Method and device for unplugging specimen container |
| CN106489076A (en) * | 2014-07-18 | 2017-03-08 | 株式会社日立高新技术 | Automatic analysing apparatus |
| CN208653857U (en) * | 2018-08-24 | 2019-03-26 | 山东艾科达生物科技有限公司 | A kind of complex samples system puncturing function with nut cap |
| CN214622689U (en) * | 2020-11-28 | 2021-11-05 | 北京众驰伟业科技发展有限公司 | Lifting device is prevented in sample cell pushing down |
-
2020
- 2020-11-28 CN CN202011362451.1A patent/CN113970649A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH063360A (en) * | 1992-06-22 | 1994-01-11 | Syst Sutatsuku:Kk | Method and device for unplugging specimen container |
| CN106489076A (en) * | 2014-07-18 | 2017-03-08 | 株式会社日立高新技术 | Automatic analysing apparatus |
| CN208653857U (en) * | 2018-08-24 | 2019-03-26 | 山东艾科达生物科技有限公司 | A kind of complex samples system puncturing function with nut cap |
| CN214622689U (en) * | 2020-11-28 | 2021-11-05 | 北京众驰伟业科技发展有限公司 | Lifting device is prevented in sample cell pushing down |
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