CN203422382U - Sample injector capable of removing suction tip automatically - Google Patents
Sample injector capable of removing suction tip automatically Download PDFInfo
- Publication number
- CN203422382U CN203422382U CN201320416034.XU CN201320416034U CN203422382U CN 203422382 U CN203422382 U CN 203422382U CN 201320416034 U CN201320416034 U CN 201320416034U CN 203422382 U CN203422382 U CN 203422382U
- Authority
- CN
- China
- Prior art keywords
- slide block
- suction nozzle
- sliding block
- drive motor
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a sample injector capable of removing a suction tip automatically. The sample injector comprises a drive motor, a support, a plunger, an air cylinder, a gun head, a first sliding block, a guide rod, a second sliding block, a pull rod and a suction tip spacer sleeve, wherein the drive motor is fixedly installed on the support, the pull rod is sleeved with the first sliding block in a sliding manner, a baffle for limiting the first sliding block is arranged at the upper end of the pull rod, one end of the first sliding block is fixed on the plunger, the other end of the first sliding block is connected to a power output shaft of the drive motor, the guide rod is fixed on the support and provided with a spring outside, the guide rod is sleeved with the second sliding block in a sliding manner, the second sliding block is fixedly connected with the pull rod and the air cylinder, the lower end of the spring abuts against the second sliding block, the suction tip spacer sleeve is fixed on the support, and the gun head fixedly connected with the air cylinder is located in the suction tip spacer sleeve and capable of sliding up and down relative to the suction tip spacer sleeve. The sample injector is simple in structure, easy to operate, low in cost and capable of removing the suction tip rapidly and effectively, so that the sampling efficiency is improved.
Description
Technical field
The utility model relates to the micro updating liquid rotating being applicable on blood analyser and diverts from one use to another sample adding device, specifically belongs to a kind of sample injector of automatic removal disposable tip of gas displacement type.
Background technology
In various biological or chemical analytical equipments, when carrying out the dilution of sample or reagent, when distributing and the operation such as mixing, all need to be by sample injector (or sample loading gun).Common sample adding device is mainly divided into liquid displacement formula and gas displacement type both at home and abroad at present, wherein liquid displacement formula sample injector needs pipe system and the probe rinse-system of relative complex, it has complex structure, cost is expensive, there is the defect of cross pollution, and although gas displacement type sample injector is simple in structure, cost is low, there is not the risk of cross pollution, but in use need the intermediate that adopts disposable tip to shift as liquid, therefore for gas displacement type sample injector, how to change rapidly and accurately disposable tip and become the key issue that improves application of sample work efficiency.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of sample injector of automatic removal suction nozzle, can automatically rapidly disposable tip be removed from the rifle head of sample injector.
For solving the problems of the technologies described above, the sample injector of the automatic removal suction nozzle that the utility model provides, comprises drive motor, support, plunger, cylinder, rifle head, the first slide block, guide pole, the second slide block, pull bar and suction nozzle interstage sleeve,
Described drive motor is fixedly mounted on support;
Described the first slide block is set on pull bar slidably, and the upper end of pull bar has the baffle plate of restriction first slide block, and one end of the first slide block is fixed on plunger, and the other end is connected in the power output shaft of drive motor;
Described guide pole is fixed on support, its outer spring that is provided with;
Described the second slide block is set on guide pole slidably, and is all fixedly connected with cylinder with pull bar, and the lower end of described spring is pressed on the second slide block;
Described suction nozzle interstage sleeve is fixed on support, and the rifle head being fixedly connected with cylinder is positioned at suction nozzle interstage sleeve and relative suction nozzle interstage sleeve slides up and down.
Wherein, spring is in compressive state, and the minimum spring force that the second slide block is subject to is greater than the friction force of plunger and cylinder.
Further, described drive motor is linear electric motors, and its power output shaft is leading screw.
The utility model drives the first slide block and the plunger of integrative-structure formula to move upward by drive motor, at this process medi-spring, makes the second slide block, pull bar and the cylinder of integrative-structure formula keep static, realizes well liquid sampling; Drive motor drives the first slide block to move up to behind the baffle position place at pull bar top, the second slide block Compress Spring under the effect of motor driving force, the first slide block, plunger, pull bar, the second slide block, cylinder are done as a wholely to move upward together, and rifle head moves up until disposable tip is destroyed by suction nozzle interstage sleeve thereupon in suction nozzle interstage sleeve.The utility model is simple in structure, and easy operating is with low cost and can effectively improve sampling efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is partial sectional view of the present utility model;
Accompanying drawing 2 is front views of the present utility model.
Wherein description of reference numerals is as follows:
1 is drive motor; 2 is support; 3 is the first slide block; 4 is spring; 5 is guide pole; 6 is plunger; 7 is the second slide block; 8 is cylinder; 9 is rifle head; 10 is suction nozzle interstage sleeve; 11 is disposable tip; 12 is pull bar.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
The sample injector of the automatic removal suction nozzle that the utility model provides, as shown in Figure 1, comprises drive motor 1, support 2, plunger 6, cylinder 8, rifle head 9, the first slide block 3, guide pole 5, the second slide block 7, pull bar 12 and suction nozzle interstage sleeve 10, wherein,
Drive motor 1 is fixedly mounted on support 2, linear electric motors preferably, and its power output shaft is leading screw;
The first slide block 3 is set on pull bar 12 slidably, and as shown in Figure 2, the upper end of this pull bar 12 has the baffle plate of restriction the first slide block 3, and one end of the first slide block 3 is fixed on plunger 6, and the other end is connected on leading screw;
Guide pole 5 is fixed on support 2, its outer spring 4 that is provided with;
The second slide block 7 is set on guide pole 5 slidably, and is all fixedly connected with cylinder 8 with pull bar 12, and the lower end of described spring 4 is pressed on the second slide block 7;
Suction nozzle interstage sleeve 10 is fixed on support 2, and the rifle head 9 being fixedly connected with cylinder 8 is positioned at suction nozzle interstage sleeve 10 and relative suction nozzle interstage sleeve 10 slides up and down.
Spring 4 is in compressive state, and the minimum spring force that the second slide block 7 is subject to is greater than the friction force of plunger 6 and cylinder 8.
When using this sampler to carry out liquid sampling, disposable tip 11 is put into liquid to be sampled, the leading screw of drive motor 1 drives the first slide block 3 to move upward on pull bar 12, under the elastic force effect of spring 4, the second slide block 7 is static, and the relative cylinder 8 of plunger 6 moves upward, now, the interior generation negative pressure of disposable tip 11, sampled liquid enters disposable tip 11 under the effect of air pressure.Liquid sample enters after disposable tip 11 completely, and the leading screw of drive motor 1 drives the first slide block 3 to move downward, and the relative cylinder 8 of plunger 6 moves downward, and the pressure of disposable tip 11 inside is greater than atmospheric pressure, and sampling liquid is extruded disposable tip 11.
After having sampled, the leading screw of drive motor 1 drives the first slide block 3 again to move upward on pull bar 12, do not arrive the baffle plate place of pull bar 12 upper ends at the first slide block 3 before, the second slide block 7 is static, the relative cylinder 8 of plunger 6 moves upward, when the first slide block 3 is blocked by the baffle plate on pull bar 12, the first slide block 3, plunger 6, pull bar 12, the second slide block 7 is as a whole with 8 one-tenth, cylinder, now under the effect of motor driving force, the second slide block 7 moves up and Compress Spring 4 on guide pole 5, under the drive of cylinder 8, rifle head 9 moves upward in suction nozzle interstage sleeve 10, disposable tip 11 makes progress near suction nozzle interstage sleeve 10 gradually until finally depart from rifle head 9 under the effect of suction nozzle interstage sleeve 10.
By specific embodiment, the utility model is had been described in detail above, this embodiment is only preferred embodiment of the present utility model, and it not limits the utility model.In the situation that not departing from the utility model principle, equivalent replacement and improvement that those skilled in the art makes each ingredient etc., in the technology category that all should be considered as protecting at the utility model.
Claims (3)
1. a sample injector of automatically removing suction nozzle, it is characterized in that, comprise drive motor (1), support (2), plunger (6), cylinder (8), rifle head (9), the first slide block (3), guide pole (5), the second slide block (7), pull bar (12) and suction nozzle interstage sleeve (10)
Described drive motor (1) is fixedly mounted on support (2);
Described the first slide block (3) is set on pull bar (12) slidably, and the upper end of pull bar (12) has the baffle plate of restriction first slide block (3), it is upper that one end of the first slide block (3) is fixed on plunger (6), and the other end is connected in the power output shaft of drive motor (1);
It is upper that described guide pole (5) is fixed on support (2), its outer spring (4) that is provided with;
It is upper that described the second slide block (7) is set in guide pole (5) slidably, and be all fixedly connected with cylinder (8) with pull bar (12), and the lower end of described spring (4) is pressed on the second slide block (7);
It is upper that described suction nozzle interstage sleeve (10) is fixed on support (2), and the rifle head (9) being fixedly connected with cylinder (8) is positioned at suction nozzle interstage sleeve (10) and relative suction nozzle interstage sleeve (10) slides up and down.
2. the sample injector of automatic removal suction nozzle according to claim 1, is characterized in that, described spring (4) is in compressive state, and the minimum spring force that the second slide block (7) is subject to is greater than the friction force of plunger (6) and cylinder (8).
3. the sample injector of automatic removal suction nozzle according to claim 1, is characterized in that, described drive motor (1) is linear electric motors, and its power output shaft is leading screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416034.XU CN203422382U (en) | 2013-07-12 | 2013-07-12 | Sample injector capable of removing suction tip automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416034.XU CN203422382U (en) | 2013-07-12 | 2013-07-12 | Sample injector capable of removing suction tip automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203422382U true CN203422382U (en) | 2014-02-05 |
Family
ID=50021477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320416034.XU Expired - Lifetime CN203422382U (en) | 2013-07-12 | 2013-07-12 | Sample injector capable of removing suction tip automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203422382U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051602A (en) * | 2017-06-01 | 2017-08-18 | 深圳市港科深研生物科技有限公司 | Preposition suction gun |
| CN111530517A (en) * | 2019-02-07 | 2020-08-14 | 赛多利斯百得液体处理公司 | Pipette tip removal in automatic pipette modules |
| WO2021170038A1 (en) * | 2020-02-28 | 2021-09-02 | 马良 | Solid moving device |
-
2013
- 2013-07-12 CN CN201320416034.XU patent/CN203422382U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051602A (en) * | 2017-06-01 | 2017-08-18 | 深圳市港科深研生物科技有限公司 | Preposition suction gun |
| CN111530517A (en) * | 2019-02-07 | 2020-08-14 | 赛多利斯百得液体处理公司 | Pipette tip removal in automatic pipette modules |
| US11471880B2 (en) | 2019-02-07 | 2022-10-18 | Sartorius Biohit Liquid Handling Oy | Tip removal in automated pipette module |
| CN111530517B (en) * | 2019-02-07 | 2023-02-21 | 赛多利斯百得液体处理公司 | Pipette tip removal in automatic pipette modules |
| WO2021170038A1 (en) * | 2020-02-28 | 2021-09-02 | 马良 | Solid moving device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021088428A1 (en) | Pipetting device | |
| CN203422382U (en) | Sample injector capable of removing suction tip automatically | |
| CN201974433U (en) | Automation device used for sample adding and reaction tube loading | |
| CN202229942U (en) | Vacuum oil collecting device of transformer | |
| CN204165804U (en) | Portable manual negative pressure gas sampler | |
| CN202182888U (en) | Liquid pumping and drainage driving mechanism of automatic sample-adding gun | |
| CN104263633A (en) | Magnetic-separation-based high-flux biological sample treatment device | |
| CN203011729U (en) | Novel soil sampling device | |
| CN109355283A (en) | A kind of nucleic acid automatic extracting device suitable for space | |
| CN219369287U (en) | Explosion-proof type atmosphere sampling instrument for environmental monitoring | |
| CN201940963U (en) | Special disassembling tool for bearing | |
| CN203390800U (en) | Clamp for assembling umbrella handle | |
| CN202975850U (en) | Micro-scale sample introduction control system | |
| CN205699589U (en) | A kind of for Graphene, the device of graphene oxide back extraction | |
| CN205103267U (en) | Automatic sampling device | |
| CN204154540U (en) | Hybrid power type negative pressure gas sampler | |
| CN103868764A (en) | Simple air sampler | |
| CN202219172U (en) | Fast-assembly and fast-disassembly sucking-head-withdrawing device for high-precision electric pipetting device | |
| CN207263764U (en) | Syringe pump system | |
| CN204165798U (en) | Portable gas sampling thief | |
| CN202415555U (en) | Novel sputum microbial sampler | |
| CN203636750U (en) | Assembling device for chain board and pin shafts | |
| CN203350094U (en) | Apparatus for testing smear | |
| CN203299210U (en) | Rail-mounted double-arm sampling mechanism | |
| CN220618935U (en) | Microorganism sampler for environment detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |
|
| CX01 | Expiry of patent term |