CN220861505U - Pipette for nucleic acid amplification experiment - Google Patents
Pipette for nucleic acid amplification experiment Download PDFInfo
- Publication number
- CN220861505U CN220861505U CN202322646071.6U CN202322646071U CN220861505U CN 220861505 U CN220861505 U CN 220861505U CN 202322646071 U CN202322646071 U CN 202322646071U CN 220861505 U CN220861505 U CN 220861505U
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- positioning
- pipette
- groove
- suction head
- nucleic acid
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- 150000007523 nucleic acids Chemical class 0.000 title claims abstract description 33
- 102000039446 nucleic acids Human genes 0.000 title claims abstract description 33
- 108020004707 nucleic acids Proteins 0.000 title claims abstract description 33
- 230000003321 amplification Effects 0.000 title claims abstract description 24
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 24
- 238000002474 experimental method Methods 0.000 title abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000008093 supporting effect Effects 0.000 claims description 25
- 238000003556 assay Methods 0.000 claims description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000007257 malfunction Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000012546 transfer Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000001821 nucleic acid purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model belongs to the technical field of pipette devices, in particular to a pipette used in a nucleic acid amplification experiment, which comprises: a pipette body, wherein a suction head communicated with the inside of the pipette body is arranged at the bottom end of the pipette body, and a suction nozzle is sleeved outside the suction head; the positioning assembly is used for positioning and mounting the suction head and the suction nozzle, the positioning assembly comprises two positioning rings sleeved outside the suction head, a positioning cavity for the suction nozzle to insert is formed between the two positioning rings, and a mounting assembly for stably mounting the two positioning rings is arranged outside the suction head; according to the utility model, through the arrangement of the positioning component, the positioning function on the suction nozzle and the suction head can be realized, so that stable installation between the suction nozzle and the suction head is realized, the normal use of the pipette body can be ensured, the service life of the pipette body is prolonged, the laboratory pollution problem caused by the malfunction of the pipette device is avoided, and the cost of a nucleic acid amplification experiment is saved.
Description
Technical Field
The utility model belongs to the technical field of pipettor equipment, and particularly relates to a pipettor used in a nucleic acid amplification experiment.
Background
The pipette is also called a pipette gun, is a metering tool for taking liquid from an original container into another container in a certain range, and generally needs to suck and transfer nucleic acid into a suction head through a suction tube in the pipette in the nucleic acid detection process, so that the nucleic acid is conveniently subjected to an amplification test to realize further detection, and the stable performance of the pipette is beneficial to the accuracy of nucleic acid detection data.
In the Chinese patent with publication number CN215087249U, a micro-adjustable pipettor for purifying nucleic acid is disclosed, an isolation cylinder is sleeved on the outer side of a suction nozzle, and then the isolation cylinder is sealed by a sealing plate, so that dust or impurities are prevented from falling on the surface of the suction nozzle when a pipettor body is idle, and the situation that the dust on the suction nozzle pollutes a solution is prevented; although the above-mentioned pipettor has solved the pollution of suction nozzle, above-mentioned pipettor is at in-service use, the detection personnel is pegged graft the installation between suction nozzle and the suction nozzle, however the suction nozzle lacks locating component, thereby when the detection personnel pegged graft the suction nozzle on the suction nozzle repeatedly, lead to the repetition striking between suction nozzle and the suction nozzle easily, long-time use causes the pipettor internals to become flexible easily, influence the normal use of pipettor, shortened the life of pipettor, the equipment trouble of pipettor can lead to the weeping phenomenon in the experimental operation simultaneously, probably cause result anomaly or laboratory pollution.
In order to solve the above problems, the present application proposes a pipette used in a nucleic acid amplification experiment.
Disclosure of utility model
To solve the problems set forth in the background art. The utility model provides a pipette used in a nucleic acid amplification experiment, which has the characteristic of being convenient for positioning and mounting a suction head and a suction nozzle.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
A pipette for use in a nucleic acid amplification assay, comprising:
A pipette body, wherein a suction head communicated with the inside of the pipette body is arranged at the bottom end of the pipette body, and a suction nozzle is sleeved outside the suction head;
The positioning assembly is used for positioning and installing the suction head and the suction nozzle, the positioning assembly comprises two positioning rings sleeved outside the suction head, a positioning cavity for the suction nozzle to be inserted is formed between the two positioning rings, an installation assembly for stably installing the two positioning rings is arranged outside the suction head, and the suction nozzle can be vertically inserted into the positioning cavity through the arrangement of the positioning cavity, so that the suction nozzle and the suction head can be accurately inserted.
As the pipette used in the nucleic acid amplification experiment, the mounting assembly comprises the mounting ring sleeved outside the suction head and the vertical plate connected outside the positioning ring, the top end of the vertical plate is hinged with the hinge seat, one end of the hinge seat is fixed outside the mounting ring, the two positioning rings are stably mounted outside the suction head through the arrangement of the mounting assembly, the vertical distance between the two positioning rings and the suction head can be adjusted, the situation that the positioning rings interfere the suction head during mounting is prevented, and the friction ring is further mounted in the mounting ring and used for enhancing the contact surface with the outside of the suction head and improving the stability between the mounting ring and the suction head.
As a preferred pipette for the nucleic acid amplification experiment, a moving component is arranged between the vertical plate and the positioning ring;
The movable assembly comprises a chute arranged at the bottom end of the vertical plate and a sliding block fixed at the top of the positioning ring, the sliding block is connected with the chute in a sliding manner, the vertical plate is provided with a locking assembly for fixing the sliding block along the chute in a manner that the distance between the two positioning rings and the suction head is convenient to adjust, and therefore the suction nozzle positioning and mounting device is suitable for suction nozzles with various thicknesses.
As the preferred pipettor used in the nucleic acid amplification experiment, the locking component comprises a through groove formed in one side of the vertical plate and a plurality of clamping grooves formed in one side of the sliding block, a moving groove is formed in the through groove, a supporting plate is connected in the moving groove in a sliding mode, one end of the supporting plate is fixedly provided with a clamping block, one end of the clamping block extends to the outside of the moving groove and is clamped and fixed with the clamping groove, and a pressing component for driving the supporting plate is arranged in the through groove.
As the preferred pipettor used in the nucleic acid amplification experiment, the pressing component comprises a second telescopic column and a connecting ring, wherein the second telescopic column is connected in a through groove in a sliding mode, the connecting ring is fixed on one side of the supporting plate, the connecting ring is fixedly connected with the second telescopic column, a ring piece is fixed at one end of the second telescopic column, a reset spring is fixed between the ring piece and the connecting ring, the reset spring is sleeved outside the second telescopic column, and one end of the ring piece extends to the outside of the through groove and is fixedly provided with a pressing cap.
As the preferred pipettor for the nucleic acid amplification experiment, one side of the supporting plate is also fixedly provided with the first telescopic column, one end of the first telescopic column opposite to the supporting plate is fixed on the inner wall of the moving groove, and the first telescopic column has elasticity and is used for achieving the effect of elastic support between the supporting plate and the moving groove by the arrangement of the first telescopic column, so that the moving stability of the supporting plate along the moving groove is enhanced.
Compared with the prior art, the utility model has the beneficial effects that:
1. Through the setting of locating component, can realize playing the effect of location to suction nozzle and suction head when the installation to realize stable installation between suction nozzle and the suction head, solved the inspector and pegged graft the suction nozzle on the suction head repeatedly, lead to striking repeatedly between suction nozzle and the suction head easily, use for a long time and cause the problem that the inside part of pipettor main part is not hard up easily, can be favorable to guaranteeing the normal use of pipettor main part, great extension the life of pipettor main part, improved the practicality of pipettor, avoided the laboratory pollution problem because of pipettor equipment trouble leads to simultaneously, saved the cost of nucleic acid amplification experiment.
2. Through the setting of moving the subassembly, can realize adjusting the location chamber distance between holding ring and the suction head to be favorable to adapting to the location installation of multiple different thickness suction nozzles, further promoted the flexibility of pipettor main part when using, made things convenient for the use of nucleic acid amplification experiment.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the positioning ring of FIG. 1 in an adjusted configuration according to the present utility model;
FIG. 3 is a schematic view of the mounting ring of FIG. 2 according to the present utility model;
FIG. 4 is a schematic view of the locking assembly of the present utility model;
FIG. 5 is a schematic view of the return spring of FIG. 4 after removal in accordance with the present utility model;
In the figure: 1. a pipette body; 11. a suction head; 12. a suction nozzle; 2. a positioning assembly; 21. a positioning ring; 22. a mounting ring; 23. a hinge base; 24. a vertical plate; 3. a moving assembly; 31. a chute; 32. a slide block; 4. a locking assembly; 41. a through groove; 42. a moving groove; 43. a support plate; 44. a clamping block; 45. a first telescoping column; 46. a clamping groove; 47. a ring piece; 48. a second telescoping column; 49. and a return spring.
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.
The present utility model provides a pipette for use in a nucleic acid amplification experiment as shown in FIG. 1, comprising:
The pipette body 1, the bottom end of the pipette body 1 is provided with a suction head 11 communicated with the inside of the pipette body 1, the outside of the suction head 11 is sleeved with a suction nozzle 12, the structure of the pipette body 1 and the liquid suction principle thereof are all of the prior art, reference can be made to a comparison document (publication number is CN215087249U, patent name is a micro-adjustable pipette for nucleic acid purification), and the details are not repeated here;
It can be seen from the above that, in use, the user inserts and installs the suction nozzle 12 and the suction nozzle 11, then after the installation between the suction nozzle 12 and the suction nozzle 11 is completed, the detector slowly inserts one end of the suction nozzle 12 into the container containing nucleic acid, and presses the pipette body 1, so that the suction nozzle 11 sucks the nucleic acid into the suction nozzle 12 to perform suction transfer, and the nucleic acid is used for performing amplification test, so as to realize further detection, and facilitate the accuracy of nucleic acid detection data.
Referring to fig. 1-3, a positioning assembly 2 for positioning and mounting a suction nozzle 11 and a suction nozzle 12, wherein the positioning assembly 2 comprises two positioning rings 21 sleeved outside the suction nozzle 11, a positioning cavity for inserting the suction nozzle 12 is formed between the two positioning rings 21, and a mounting assembly for stably mounting the two positioning rings 21 is arranged outside the suction nozzle 11; the installation assembly comprises a mounting ring 22 sleeved outside the suction head 11 and a vertical plate 24 connected outside the positioning ring 21, wherein the top end of the vertical plate 24 is hinged with a hinge seat 23, and one end of the hinge seat 23 is fixed outside the mounting ring 22.
Through the technical scheme:
During the use, through cup jointing collar 22 in the outside of suction head 11, make stable connection between collar 22 and the suction head 11, promote riser 24 this moment, make the angle between riser 24 and the articulated seat 23 adjust, be used for slowly being close to the outside of suction head 11 with one side of two holding rings 21, when closing between two holding rings 21, the location chamber diameter between two holding rings 21 and the suction head 11 is the minimization, and the outside of suction head 11 is located half in the location chamber, and the inspector holds suction nozzle 12 when being close to in the location chamber, the location chamber is used for playing the effect of direction to suction nozzle 12, avoid suction nozzle 12 to take place the slope when the installation, make between suction nozzle 12 and the suction head 11 keep the vertical state, be used for with the location installation between suction nozzle 12 and the suction head 11, the problem that the inspection personnel repeatedly pegged graft suction nozzle 12 on suction head 11, result in the repeated striking between suction nozzle 12 and the suction head 11, cause the inside part of liquid transfer ware main part loose for a long time, the normal use of liquid transfer ware main part 1 has been favorable to guaranteeing, the life of liquid transfer ware main part 1 has been prolonged, the practicality of this device has increased.
In addition, referring to fig. 1-5, a moving assembly 3 is disposed between the vertical plate 24 and the positioning ring 21, the moving assembly 3 includes a sliding groove 31 formed at the bottom end of the vertical plate 24 and a sliding block 32 fixed at the top of the positioning ring 21, the sliding block 32 is slidably connected with the sliding groove 31, and a locking assembly 4 for fixing the sliding block 32 along the sliding groove 31 is disposed on the vertical plate 24;
The locking assembly 4 comprises a through groove 41 formed on one side of the vertical plate 24 and a plurality of clamping grooves 46 formed on one side of the sliding block 32, a moving groove 42 is formed in the through groove 41, a supporting plate 43 is connected in a sliding manner in the moving groove 42, a clamping block 44 is fixed at one end of the supporting plate 43, one end of the clamping block 44 extends to the outside of the moving groove 42 and is clamped and fixed with the clamping groove 46, and a pressing assembly for driving the supporting plate 43 is arranged in the through groove 41; the pressing component comprises a second telescopic column 48 which is slidably connected in the through groove 41 and a connecting ring which is fixed on one side of the supporting plate 43, the connecting ring is fixedly connected with the second telescopic column 48, a ring piece 47 is fixed at one end of the second telescopic column 48, a reset spring 49 is fixed between the ring piece 47 and the connecting ring, the reset spring 49 is sleeved outside the second telescopic column 48, and one end of the ring piece 47 extends to the outside of the through groove 41 and is fixedly provided with a pressing cap.
Through the technical scheme:
When the nucleic acid liquid suction device is used, when nucleic acid is sucked, the pressing cap is pressed, the pressing cap pushes the ring piece 47 to move along the through groove 41, the restoring spring 49 is extruded while the ring piece 47 moves, the restoring spring 49 is forced to push the connecting ring to move along the through groove 41, the second telescopic column 48 is used for limiting the restoring spring 49, the stress deformation of the restoring spring 49 is prevented when the restoring spring 49 is extruded, the stability of the movement of the restoring spring 49 is improved, the restoring spring 49 is compressed in the through groove 41, the supporting plate 43 is driven to synchronously move in the moving process of the connecting ring, the supporting plate 43 is moved along the moving groove 42, the clamping block 44 is positioned in one of the clamping grooves 46 to be outwards separated, however, the clamping block 44 and the clamping groove 46 are separated, so that the interference effect between the sliding block 32 and the sliding groove 31 is lost, and one end of the sliding block 32 is pulled, the sliding block 32 moves along the sliding groove 31 during pulling, so that the distance between the positioning ring 21 and the suction head 11 is finely adjusted, the pressing cap is loosened after adjustment is completed, the elastic force of the return spring 49 stretches out and draws back and the return thrust force is used for resetting the ring piece 47 along the through groove 41, so that the clamping block 44 and the other clamping groove 46 are in interference again, the positioning cavity distance between the positioning ring 21 and the suction head 11 can be adjusted, positioning installation of the suction nozzles 12 with various different thicknesses is facilitated, and the flexibility of the liquid transfer device main body 1 during use is further improved.
Further, a first telescopic column 45 is fixed on one side of the supporting plate 43, and one end of the first telescopic column 45 opposite to the supporting plate 43 is fixed on the inner wall of the moving groove 42; based on this, by the arrangement of the first telescopic column 45, the first telescopic column 45 has elasticity, which is used for playing an elastic supporting effect between the supporting plate 43 and the moving groove 42, and enhancing the stability of the supporting plate 43 moving along the moving groove 42.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. A pipette for use in a nucleic acid amplification assay comprising:
A pipette body (1), wherein a suction head (11) communicated with the inside of the pipette body (1) is arranged at the bottom end of the pipette body, and a suction nozzle (12) is sleeved outside the suction head (11);
The positioning assembly (2) is used for positioning and installing the suction head (11) and the suction nozzle (12), the positioning assembly (2) comprises two positioning rings (21) sleeved outside the suction head (11), a positioning cavity for the suction nozzle (12) to be inserted is formed between the two positioning rings (21), and an installation assembly for stably installing the two positioning rings (21) is arranged outside the suction head (11).
2. The pipette for use in a nucleic acid amplification assay according to claim 1, wherein: the mounting assembly comprises a mounting ring (22) sleeved outside the suction head (11) and a vertical plate (24) connected outside the positioning ring (21), wherein the top end of the vertical plate (24) is hinged with a hinge seat (23), and one end of the hinge seat (23) is fixed outside the mounting ring (22).
3. The pipette for use in a nucleic acid amplification assay according to claim 2, wherein: a moving assembly (3) is arranged between the vertical plate (24) and the positioning ring (21);
The movable assembly (3) comprises a sliding groove (31) formed in the bottom end of the vertical plate (24) and a sliding block (32) fixed at the top of the positioning ring (21), the sliding block (32) is connected with the sliding groove (31) in a sliding mode, and the vertical plate (24) is provided with a locking assembly (4) for fixing the sliding block (32) along the sliding groove (31) in an internal mode.
4. A pipette for use in a nucleic acid amplification assay according to claim 3, wherein: the locking assembly (4) comprises a through groove (41) formed in one side of the vertical plate (24) and a plurality of clamping grooves (46) formed in one side of the sliding block (32), a moving groove (42) is formed in the through groove (41), a supporting plate (43) is connected in the moving groove (42) in a sliding mode, a clamping block (44) is fixed at one end of the supporting plate (43), one end of the clamping block (44) extends to the outside of the moving groove (42) and is fixedly clamped with the clamping groove (46), and a pressing assembly for driving the supporting plate (43) is arranged in the through groove (41).
5. The pipette for use in a nucleic acid amplification assay according to claim 4, wherein: the pressing assembly comprises a second telescopic column (48) which is slidably connected in the through groove (41) and a connecting ring which is fixed on one side of the supporting plate (43), the connecting ring is fixedly connected with the second telescopic column (48), a ring piece (47) is fixed at one end of the second telescopic column (48), a reset spring (49) is fixed between the ring piece (47) and the connecting ring, the reset spring (49) is sleeved outside the second telescopic column (48), and one end of the ring piece (47) extends to the outside of the through groove (41) and is fixedly provided with a pressing cap.
6. The pipette for use in a nucleic acid amplification assay according to claim 4, wherein: one side of the supporting plate (43) is also fixed with a first telescopic column (45), and one end of the first telescopic column (45) opposite to the supporting plate (43) is fixed on the inner wall of the moving groove (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322646071.6U CN220861505U (en) | 2023-09-28 | 2023-09-28 | Pipette for nucleic acid amplification experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322646071.6U CN220861505U (en) | 2023-09-28 | 2023-09-28 | Pipette for nucleic acid amplification experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220861505U true CN220861505U (en) | 2024-04-30 |
Family
ID=90814393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322646071.6U Active CN220861505U (en) | 2023-09-28 | 2023-09-28 | Pipette for nucleic acid amplification experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220861505U (en) |
-
2023
- 2023-09-28 CN CN202322646071.6U patent/CN220861505U/en active Active
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