CN220919264U - Quantitative liquid taking device for laboratory solution - Google Patents
Quantitative liquid taking device for laboratory solution Download PDFInfo
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- CN220919264U CN220919264U CN202320090496.0U CN202320090496U CN220919264U CN 220919264 U CN220919264 U CN 220919264U CN 202320090496 U CN202320090496 U CN 202320090496U CN 220919264 U CN220919264 U CN 220919264U
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- liquid taking
- liquid
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- cylinder
- wall
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- 239000007788 liquid Substances 0.000 title claims abstract description 80
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003181 biological factor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model discloses a quantitative liquid taking device for laboratory solutions, which belongs to the technical field of experimental equipment and comprises a liquid taking cylinder, wherein a liquid suction pipe is arranged on the lower surface of the liquid taking cylinder in a threaded manner, a sealing plate is fixedly arranged on the inner wall of the liquid suction pipe, and a leakage-proof assembly is arranged on the outer surface of the liquid taking cylinder; according to the utility model, the anti-leakage assembly is arranged, when the ejector block moves out from the upper surface of the liquid taking barrel, the lifting plate is pushed upwards, the rotating rod drives the driving gear to rotate, the liquid suction pipe rotates on the lower surface of the liquid taking barrel under the action of the driven gear, the sealing plate on the inner wall of the dissolved liquid suction pipe synchronously rotates, and when the ejector block is completely ejected out, the sealing plate is just meshed with the baffle on the lower surface of the liquid taking barrel, so that the liquid taking barrel is sealed, the situation that biological solution drops due to misoperation in the liquid transferring process is effectively avoided, leakage after liquid taking of the liquid taking device is reduced, and the sealing performance of the liquid taking barrel is improved.
Description
Technical Field
The utility model belongs to the technical field of experimental equipment, and particularly relates to a quantitative liquid taking device for laboratory solutions.
Background
The biological laboratory is a place for performing experiments related to biological departments, and can avoid or control the harm of the operated harmful biological factors through protective barriers and management measures, so as to meet the biological safety requirements.
The current liquid extractor for biological laboratories mostly uses a suction force to suck the solution into a liquid extracting tube by pressing a rubber head, and then uses a measuring cup to measure.
Disclosure of utility model
The utility model aims at: in order to solve the above problems, a quantitative laboratory solution taking device is provided.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the quantitative liquid taking device for laboratory solution comprises a liquid taking cylinder, wherein a liquid suction pipe is arranged on the lower surface of the liquid taking cylinder in a threaded manner, a sealing plate is fixedly arranged on the inner wall of the liquid suction pipe, a leakage-proof component is arranged on the outer surface of the liquid taking cylinder, and a quantitative component is arranged on the upper surface of the liquid taking cylinder;
The leakage-proof assembly comprises a fixed sleeve and a driven gear, one end of the fixed sleeve is fixedly connected with the outer surface of the liquid taking cylinder, and an expansion spring is fixedly arranged on the upper surface of the fixed sleeve.
As a further description of the above technical solution:
The lifting plate is fixedly mounted at one end of the telescopic spring, the threaded rod is mounted on the inner wall of the lifting plate in a threaded mode, one end of the threaded rod penetrates through the telescopic spring, and the rotating rod is fixedly mounted at one end of the threaded rod.
As a further description of the above technical solution:
One end of the rotating rod extends out of the lower surface of the fixed sleeve, a driving gear is fixedly arranged on the outer surface of the rotating rod, the driving gear is connected with a driven gear in a meshed mode, and the inner wall of the driven gear is fixedly connected with the outer surface of the liquid suction pipe.
As a further description of the above technical solution:
The quantitative assembly comprises a threaded cylinder and a fixed block, wherein a threaded column is arranged on the inner wall of the threaded cylinder in a threaded manner, one end of the threaded column extends out of the upper surface of the threaded cylinder, and a pressing plate is fixedly arranged at one end of the threaded column.
As a further description of the above technical solution:
The screw thread section of thick bamboo other end fixed mounting has the rotating block, the lower surface of rotating block rotates through spacing ring and the upper surface of fixed block to be connected, the lower surface of rotating block is provided with the recess, fixed mounting has spacing spring on the inner wall of recess, spacing spring's one end fixed mounting has the stopper, the upper surface of fixed block is provided with spacing hole.
As a further description of the above technical solution:
The inner wall of the liquid taking cylinder is slidably provided with a piston plate, the upper surface of the piston plate is fixedly provided with a top block, the upper surface of the top block is fixedly provided with a connecting rod, one end of the connecting rod extends out of the upper surface of the liquid taking cylinder and penetrates through the lifting plate, one end of the connecting rod is fixedly provided with a pressing plate, and the outer surface of the connecting rod is provided with scale marks.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. According to the utility model, the anti-leakage assembly is arranged, when the ejector block moves out from the upper surface of the liquid taking barrel, the lifting plate is pushed upwards, the threaded rod drives the rotating rod to rotate on the inner wall of the fixed sleeve, the rotating rod drives the driving gear to rotate, and the driven gear is meshed with the driving gear, so that the liquid suction pipe rotates on the lower surface of the liquid taking barrel under the action of the driven gear, the sealing plate on the inner wall of the liquid suction pipe can synchronously rotate, and when the ejector block is completely ejected out, the sealing plate is just meshed with the baffle on the lower surface of the liquid taking barrel, so that the liquid taking barrel is sealed, the situation that biological solution drops due to misoperation in the liquid transferring process is effectively avoided, leakage after liquid taking of the liquid taking device is reduced, and the sealing performance of the liquid taking barrel is improved.
2. According to the liquid taking device, the quantitative assembly is arranged, the top plate is driven to move upwards along with the rotation of the threaded cylinder, so that the pressing plate is driven to move upwards synchronously, the rotating block rotates on the upper surface of the fixed block while the threaded cylinder rotates, the limiting block is clamped into the limiting hole on the upper surface of the fixed block under the action of the limiting spring, the threaded cylinder is fixed, the piston plate is driven to move upwards synchronously through the connecting rod while the pressing plate moves upwards, and when the scale mark of the liquid suction volume on the outer surface of the connecting rod is flush with the upper surface of the lifting plate, the threaded cylinder is stopped to be rotated to quantitatively absorb a solution, so that the problem of liquid taking errors of a traditional liquid taking device is solved.
Drawings
Fig. 1 is a schematic perspective view of a quantitative laboratory solution taking device.
Fig. 2 is a schematic diagram of the internal structure of a quantitative laboratory solution taking device.
Fig. 3 is an enlarged schematic view of the laboratory solution quantitative dispenser at a.
Fig. 4 is a schematic diagram showing an exploded structure of a pipette in a laboratory solution quantitative dispenser.
Legend description:
1. A liquid taking cylinder; 2. a pressing plate; 3. a pipette; 4. a dosing assembly; 41. a thread cylinder; 42. a threaded column; 43. a top plate; 44. a rotating block; 45. a limit spring; 46. a limiting block; 47. a fixed block; 5. a leak-proof assembly; 51. a fixed sleeve; 52. a telescopic spring; 53. a lifting plate; 54. a threaded rod; 55. a rotating lever; 56. a drive gear; 57. a driven gear; 6. a connecting rod; 7. a top block; 8. a piston plate; 9. and (5) sealing the plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: the quantitative liquid taking device for laboratory solution comprises a liquid taking cylinder 1, wherein a liquid suction pipe 3 is arranged on the lower surface of the liquid taking cylinder 1 in a threaded manner, a sealing plate 9 is fixedly arranged on the inner wall of the liquid suction pipe 3, a leakage-proof component 5 is arranged on the outer surface of the liquid taking cylinder 1, and a quantitative component 4 is arranged on the upper surface of the liquid taking cylinder 1;
The leak protection subassembly 5 includes fixed cover 51 and driven gear 57, the one end of fixed cover 51 is connected with the surface mounting of getting a liquid section of thick bamboo 1, the last surface mounting of fixed cover 51 has extension spring 52, the one end fixed mounting of extension spring 52 has lifter plate 53, threaded rod 54 is installed to the screw thread on the inner wall of lifter plate 53, the one end of threaded rod 54 runs through in extension spring 52, the one end fixed mounting of threaded rod 54 has dwang 55, the one end of dwang 55 extends to outside the lower surface of fixed cover 51, the surface mounting of dwang 55 has drive gear 56, drive gear 56 and driven gear 57 meshing are connected, the inner wall of driven gear 57 and the surface mounting of pipette 3.
The specific implementation mode is as follows: when the ejector block 7 moves out from the upper surface of the liquid taking barrel 1, the lifting plate 53 is pushed upwards, the threaded rod 54 drives the rotating rod 55 to rotate on the inner wall of the fixed sleeve 51, the rotating rod 55 drives the driving gear 56 to rotate, the driven gear 57 is meshed with the driving gear 56, the liquid suction pipe 3 rotates on the lower surface of the liquid taking barrel 1 under the action of the driven gear 57, the sealing plate 9 on the inner wall of the liquid suction pipe 3 synchronously rotates, when the ejector block 7 is completely ejected, the sealing plate 9 is just meshed with the baffle on the lower surface of the liquid taking barrel 1, so that the liquid taking barrel 1 is sealed, and when the pressing plate 2 drives the piston plate 8 to move downwards, the driven gear 57 drives the liquid suction pipe 3 to restore to the original position, so that the solution in the liquid taking barrel 1 is discharged.
The quantitative assembly 4 comprises a threaded cylinder 41 and a fixed block 47, a threaded column 42 is arranged on the inner wall of the threaded cylinder 41 in a threaded manner, one end of the threaded column 42 extends out of the upper surface of the threaded cylinder 41, a pressing plate 2 is fixedly arranged at one end of the threaded column 42, a rotating block 44 is fixedly arranged at the other end of the threaded cylinder 41, the lower surface of the rotating block 44 is rotationally connected with the upper surface of the fixed block 47 through a limiting ring, a groove is formed in the lower surface of the rotating block 44, a limiting spring 45 is fixedly arranged on the inner wall of the groove, a limiting block 46 is fixedly arranged at one end of the limiting spring 45, and a limiting hole is formed in the upper surface of the fixed block 47.
The specific implementation mode is as follows: the biological solution sucked according to the requirement rotates the threaded cylinder 41, the threaded column 42 in the threaded cylinder 41 can drive the top plate 43 to move upwards along with the rotation of the threaded cylinder 41, so that the pressing plate 2 is driven to move upwards synchronously, the rotating block 44 can rotate on the upper surface of the fixed block 47 while the threaded cylinder 41 rotates, the limiting block 46 can be clamped into the limiting hole on the upper surface of the fixed block 47 under the action of the limiting spring 45 at the moment, the threaded cylinder 41 is fixed, the piston plate 8 can be driven to move upwards synchronously through the connecting rod 6 while the pressing plate 2 moves upwards, and the rotating of the threaded cylinder 41 is stopped when the scale mark of the liquid suction volume on the outer surface of the connecting rod 6 is flush with the upper surface of the lifting plate 53.
The inner wall of the liquid taking cylinder 1 is slidably provided with a piston plate 8, the upper surface of the piston plate 8 is fixedly provided with a top block 7, the upper surface of the top block 7 is fixedly provided with a connecting rod 6, one end of the connecting rod 6 extends out of the upper surface of the liquid taking cylinder 1 and penetrates through the lifting plate 53, one end of the connecting rod 6 is fixedly provided with a pressing plate 2, and the outer surface of the connecting rod 6 is provided with scale marks.
The specific implementation mode is as follows: the pipette 3 is placed into the biological solution, and then the pressing plate 2 is used for driving the piston plate 8 to move upwards through the connecting rod 6, so that the solution is sucked into the liquid taking cylinder 1.
Working principle: according to the biological solution that needs to be absorbed rotates screw tube 41, along with the screw column 42 of the rotation inside of screw tube 41 can drive roof 43 to move up, thereby drive clamp plate 2 and move up synchronously, screw tube 41 pivoted simultaneously the dwang 44 can rotate at the upper surface of fixed block 47, stopper 46 can block into the spacing downthehole of fixed block 47 upper surface under the effect of spacing spring 45 this moment, thereby fix screw tube 41, can drive piston plate 8 synchronous upward movement through connecting rod 6 when clamp plate 2 moves up, stop rotating screw tube 41 when the scale mark of the imbibition volume of connecting rod 6 surface and the upper surface parallel and level of lifter plate 53, put pipette 3 into biological solution, then use clamp plate 2 to drive piston plate 8 through connecting rod 6 upward movement, thereby draw solution into pipette 1, can upwards jack plate 53 when lifter 7 moves out from the upper surface of pipette 1, threaded rod 54 can drive the dwang 55 and rotate on the inner wall of fixed sleeve 51 this moment, the dwang 55 can drive driving gear 56, because driven gear 57 and driving gear 56 are connected, thereby take out of pipette 3 when pipette 1 is in the sealed cylinder 3 with the upper surface of jack plate 1, thereby take out of pipette 1 when pipette 1 is just in place, take out of seal plate 9 when pipette 1 is in the sealed cylinder 3.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a liquid ware is got to laboratory solution ration, is including getting liquid section of thick bamboo (1), lower surface screw thread that gets liquid section of thick bamboo (1) installs pipette (3), fixed mounting has closing plate (9), its characterized in that on the inner wall of pipette (3): the outer surface of the liquid taking cylinder (1) is provided with a leakage-proof component (5), and the upper surface of the liquid taking cylinder (1) is provided with a quantitative component (4);
The leakage-proof assembly (5) comprises a fixed sleeve (51) and a driven gear (57), one end of the fixed sleeve (51) is fixedly connected with the outer surface of the liquid taking cylinder (1), and an expansion spring (52) is fixedly arranged on the upper surface of the fixed sleeve (51).
2. The quantitative liquid taking device for laboratory solutions according to claim 1, wherein one end of the telescopic spring (52) is fixedly provided with a lifting plate (53), the inner wall of the lifting plate (53) is provided with a threaded rod (54) in a threaded manner, one end of the threaded rod (54) penetrates through the telescopic spring (52), and one end of the threaded rod (54) is fixedly provided with a rotating rod (55).
3. A quantitative laboratory solution taking device according to claim 2, wherein one end of the rotating rod (55) extends to the outside of the lower surface of the fixed sleeve (51), a driving gear (56) is fixedly arranged on the outer surface of the rotating rod (55), the driving gear (56) is meshed with a driven gear (57), and the inner wall of the driven gear (57) is fixedly connected with the outer surface of the liquid suction pipe (3).
4. A quantitative liquid taking device for laboratory solutions according to claim 3, wherein the quantitative component (4) comprises a threaded cylinder (41) and a fixed block (47), a threaded column (42) is arranged on the inner wall of the threaded cylinder (41) in a threaded manner, one end of the threaded column (42) extends out of the upper surface of the threaded cylinder (41), and a pressing plate (2) is fixedly arranged at one end of the threaded column (42).
5. The quantitative liquid taking device for laboratory solutions according to claim 4, wherein a rotating block (44) is fixedly arranged at the other end of the threaded cylinder (41), the lower surface of the rotating block (44) is rotationally connected with the upper surface of a fixed block (47) through a limiting ring, a groove is formed in the lower surface of the rotating block (44), a limiting spring (45) is fixedly arranged on the inner wall of the groove, a limiting block (46) is fixedly arranged at one end of the limiting spring (45), and a limiting hole is formed in the upper surface of the fixed block (47).
6. The quantitative liquid taking device for laboratory solutions according to claim 5, wherein a piston plate (8) is slidably mounted on the inner wall of the liquid taking barrel (1), a top block (7) is fixedly mounted on the upper surface of the piston plate (8), a connecting rod (6) is fixedly mounted on the upper surface of the top block (7), one end of the connecting rod (6) extends out of the upper surface of the liquid taking barrel (1) and penetrates through a lifting plate (53), a pressing plate (2) is fixedly mounted at one end of the connecting rod (6), and scale marks are arranged on the outer surface of the connecting rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320090496.0U CN220919264U (en) | 2023-01-31 | 2023-01-31 | Quantitative liquid taking device for laboratory solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320090496.0U CN220919264U (en) | 2023-01-31 | 2023-01-31 | Quantitative liquid taking device for laboratory solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220919264U true CN220919264U (en) | 2024-05-10 |
Family
ID=90935363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320090496.0U Active CN220919264U (en) | 2023-01-31 | 2023-01-31 | Quantitative liquid taking device for laboratory solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220919264U (en) |
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2023
- 2023-01-31 CN CN202320090496.0U patent/CN220919264U/en active Active
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