CN114289089B - Portable pipettor device - Google Patents
Portable pipettor device Download PDFInfo
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- CN114289089B CN114289089B CN202111505727.1A CN202111505727A CN114289089B CN 114289089 B CN114289089 B CN 114289089B CN 202111505727 A CN202111505727 A CN 202111505727A CN 114289089 B CN114289089 B CN 114289089B
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- Prior art keywords
- plunger assembly
- shell
- upper cover
- portable
- liquid
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- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000741 silica gel Substances 0.000 claims abstract description 23
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 23
- 238000000465 moulding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012863 analytical testing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Devices For Use In Laboratory Experiments (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application discloses a portable pipette device. The portable pipette device includes: upper cover, spring, plunger subassembly, silica gel sealing washer and shell. The silica gel sealing ring is fixedly connected to the plunger, so that the plunger assembly is sleeved into the connecting shell, the upper cover is buckled with the connecting shell, and the spring is arranged between the upper cover and the plunger assembly. The portable liquid transfer device is placed in the container, the upper cover is pressed, the container is made to jack up the plunger assembly upwards, the silica gel sealing ring on the plunger assembly moves at the bottom of the shell, after liquid suction is completed, the plunger assembly reaches a designated position, and the plunger assembly is fixedly connected with the shell in a buckling manner, so that the technical effect of automatically and quantitatively sucking fluid is achieved. The upper cover of the liquid transfer device is extruded into the liquid transfer device, and the spring below the upper cover acts on the plunger assembly to enable the plunger assembly to move downwards, so that the process of releasing the fluid from the cavity is completed. The portable liquid transfer device is simple in structure and convenient to operate, and can achieve the technical effect of reducing the production cost of the liquid transfer device.
Description
Technical Field
The application relates to the field of pipettors, in particular to a portable pipettor device.
Background
A pipette, also called a pipette gun, is an instrument for quantitatively transferring liquid. In conducting studies in analytical testing, pipettes are typically used to aspirate small or minute amounts of liquid for transfer of the liquid. In the prior art, the pipettors are generally divided into a gas piston type pipettor and an external piston type pipettor, the structure of the existing pipettor is complex, the cost required in the process of producing the pipettor on a large scale is high, and the requirements of people cannot be well met.
Therefore, the pipettor in the prior art has the technical problems of complex structure and high production cost.
Disclosure of Invention
In view of the above, it is a primary object of the present application to provide a portable pipette device which can be simply structured and can be mass-produced to reduce the production cost of the pipette.
In order to achieve the above purpose, the technical scheme of the application is realized as follows:
this portable pipettor device, characterized by includes: the device comprises an upper cover, a spring, a plunger assembly, a silica gel sealing ring and a shell;
the silica gel sealing ring is fixedly connected to the plunger assembly, the plunger assembly is sleeved and connected inside the shell, the upper cover is connected with the shell in a buckling mode, and the spring is arranged between the upper cover and the plunger assembly.
In one embodiment, the upper cover includes: the integrated cover comprises a cover body, a fixed buckle, a connecting part and a control buckle, wherein the cover body, the fixed buckle, the connecting part and the control buckle are integrally formed and connected, the fixed buckle is symmetrically arranged on the side surface of the cover body, and the control buckle is symmetrically arranged on the side surface of the cover body through the connecting part;
an inlet and outlet hole is formed in the axis of the cover body, and the upper part of the plunger assembly penetrates through the inlet and outlet.
In one embodiment, the plunger assembly comprises: the plunger assembly comprises a plunger assembly body and elastic protrusions, wherein the plunger assembly body is connected with the elastic protrusions in an integrated forming mode, and the elastic protrusions are symmetrically arranged on the side face of the plunger assembly.
In one embodiment, the lower end of the plunger assembly is provided with a circular groove, and the silica gel sealing ring is sleeved on the circular groove.
In one embodiment, a plunger assembly interface is formed in the side face of the shell, and when the liquid sucking is completed, the plunger assembly is in snap connection with the shell through the elastic protrusion and the plunger assembly interface.
In one embodiment, the housing comprises: the shell body and the suction nozzle are integrally connected. In one embodiment, a chute is also provided in the housing, the chute being provided above the plunger assembly interface.
The portable liquid dispenser device has the following beneficial effects:
the portable pipette device includes: upper cover, spring, plunger, silica gel sealing washer and shell. The silica gel sealing ring is fixedly connected to the plunger, the plunger is sleeved into the connecting shell, the upper cover is buckled with the connecting shell, and the spring is arranged between the upper cover and the plunger.
When the portable liquid dispenser is used for sucking liquid, the liquid dispenser is placed into a container filled with liquid, the upper cover is pressed, the plunger assembly is jacked up upwards by the container, the silica gel sealing ring on the plunger assembly moves at the bottom of the shell, after the liquid sucking is completed, the plunger assembly reaches a designated position, and the buckling structures on the two sides of the liquid dispenser are locked with the liquid dispenser shell, so that the function of automatically and quantitatively sucking the liquid is achieved.
The upper cover of the pipette is extruded into the pipette to break the buckling connection between the plunger assembly and the shell, so that the plunger assembly can slide in the shell. The spring below the upper cover acts on the plunger to enable the plunger assembly to move downwards, so that the process of releasing the fluid from the cavity is completed.
The portable liquid dispenser device is simple in structure and convenient to operate, and can achieve the technical effect of reducing the production cost of the liquid dispenser.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a portable pipette device of the present application;
FIG. 2 is a front view of a portable pipette device of the present application without drawing liquid;
FIG. 3 is a left side view of a portable pipette device of the present application when not aspirating liquid;
FIG. 4 is a cross-sectional view of a portable pipette device of the present application taken along line A-A;
FIG. 5 is a left side view of a portable pipette device of the present application after pipetting is complete;
FIG. 6 is a left side view of a portable pipette device of the present application after pipetting is complete;
fig. 7 is a cross-sectional view of a portable pipette device of the present application taken along line B-B.
[ Main reference numerals Specification ]
1. An upper cover; 11. a cover body; 12. a fixing buckle; 13. a connection part; 14. controlling the buckle; 2. a spring; 3. a plunger assembly; 31. a plunger assembly body; 32. an elastic protrusion; 4. a silica gel sealing ring; 5. a housing; 51. a housing body; 52. a suction nozzle; 6. a housing interface.
Detailed Description
A portable pipette device of the present application will be described in further detail below with reference to the drawings and embodiments of the present application.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 7, the portable pipette device includes: upper cover 1, spring 2, plunger subassembly 3, silica gel sealing washer 4 and shell 5. The silica gel sealing ring 4 is fixedly connected to the plunger assembly 3, the plunger assembly 3 is sleeved into the connecting shell 5, the upper cover 1 is buckled with the connecting shell 5, and the spring 2 is arranged between the upper cover 1 and the plunger assembly 3.
When the portable liquid dispenser is used for sucking liquid, the liquid dispenser is placed into a container filled with liquid, the upper cover is pressed, the plunger assembly is jacked up upwards by the container, the silica gel sealing ring on the plunger assembly moves at the bottom of the shell, after the liquid sucking is completed, the plunger assembly reaches a designated position, and the buckling structures on the two sides of the liquid dispenser are locked with the liquid dispenser shell, so that the function of automatically and quantitatively sucking the liquid is achieved.
When the portable liquid dispenser is used for releasing liquid, the upper cover of the liquid dispenser is pressed towards the inner direction of the liquid dispenser, and the buckling connection between the plunger assembly and the shell is broken, so that the plunger assembly can slide in the shell. The spring below the upper cover acts on the plunger assembly to enable the plunger assembly to move downwards, and the process of releasing the fluid from the cavity is completed.
In order to facilitate control of the connection state of the plunger assembly with the housing, the upper cover includes: lid, fixed buckle, connecting portion and control buckle are connected lid, fixed buckle, connecting portion and control buckle integrated into one piece. The fixing buckles are symmetrically arranged on the side face of the cover body, and the cover body can be fixedly connected with the shell through the fixing buckles; the control buckle is symmetrically arranged on the side surface of the cover body through the connecting part, so that the control protrusion can reach the position where the plunger assembly is connected with the shell buckle, and the technical effect of controlling the connection state of the plunger assembly and the shell is achieved.
In order to enable the plunger assembly to move in the shell, an inlet and outlet hole is formed in the axis of the cover body, and the upper side of the plunger assembly passes through the inlet and outlet. Further, the completion state of the liquid sucking or releasing of the portable liquid dispenser can be judged by the length of the distance of the plunger assembly penetrating through the inlet and the outlet.
To achieve the function that the portable pipettor can maintain sucking up liquid to temporarily store liquid, the plunger assembly includes: the plunger assembly comprises a plunger assembly body, a tray and an elastic protrusion. The plunger assembly body is fixedly connected with the tray, so that the action of sucking or releasing the plunger assembly in the inner cavity of the shell can be completed by controlling the movement of the tray; the tray and the elastic protrusion are integrally formed and connected, so that the processing and manufacturing processes of the plunger are facilitated; the elastic protrusions are symmetrically arranged at the bottom of the side face of the tray, when liquid is sucked or released, the tray moves inside the shell, the elastic protrusions move along the inner wall of the shell, after the liquid is sucked, the elastic protrusions reach the clamping grooves of the shell, and the plunger assembly is connected with the shell in a buckling mode, so that the technical effect of maintaining the stored liquid is achieved.
In order to realize fixed connection between the silica gel sealing ring and the plunger assembly, the lower end of the plunger assembly is provided with a circular groove, so that the silica gel sealing ring is sleeved on the circular groove, and the fixation between the silica gel sealing ring and the plunger assembly is realized through the elastic action of the silica gel sealing ring and the limiting action of the circular groove. Meanwhile, as the plunger component is sleeved into the connecting shell, the silica gel sealing ring can play a sealing role, and when the plunger component moves in the shell, a negative pressure state is formed in the cavity at the bottom of the shell, so that liquid suction is completed.
Further, a plunger assembly interface is formed in the side face of the shell, when liquid suction is completed, the elastic protrusion on the plunger assembly reaches the plunger assembly interface, so that the plunger assembly is fixedly connected with the shell through the elastic protrusion and the plunger assembly interface, and the effect of maintaining the liquid storage effect of the portable liquid dispenser is achieved.
In order to facilitate the sucking and discharging of the liquid, the housing includes: the suction nozzle, the plunger assembly body moving part and the tray moving part; the suction nozzle, the movable part of the plunger assembly body and the tray are integrally formed and connected, so that the processing and manufacturing of the shell can be facilitated, and the production cost of the shell is effectively reduced. The clearance between the movable part of the plunger assembly body and the plunger assembly is 1.5-2.5mm, so that the plunger assembly can be sleeved into the connecting shell, meanwhile, a cavity is formed among the plunger assembly, the silica gel sealing ring and the shell, and the cavity inside the plunger assembly and the shell forms a negative pressure state when the plunger assembly moves due to the sealing effect of the silica gel sealing ring, so that the function of absorbing liquid of the portable liquid dispenser is realized.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application.
Claims (7)
1. A portable pipette device, comprising: the device comprises an upper cover (1), a spring (2), a plunger assembly (3), a silica gel sealing ring (4) and a shell (5);
the silica gel sealing ring (4) is fixedly connected to the plunger assembly (3), the plunger assembly (3) is sleeved in the shell (5), the upper cover (1) is in buckling connection with the shell (5), the spring (2) is arranged between the upper cover (1) and the plunger assembly (3), and when the plunger assembly (3) moves in the shell (5), a negative pressure state is formed in a cavity at the bottom of the shell (5);
the upper cover (1) includes: the novel anti-theft device comprises a cover body (11), a fixing buckle (12), a connecting part (13) and a control buckle (14), wherein the fixing buckle (12) is symmetrically arranged on the side surface of the cover body (11), and the control buckle (14) is symmetrically arranged on the side surface of the cover body (11) through the connecting part (13); an access hole is formed in the axis of the cover body (11), and the upper part of the plunger assembly (3) passes through the access hole;
the plunger assembly (3) comprises: the plunger assembly comprises a plunger assembly body (31), a tray and elastic protrusions (32), wherein the elastic protrusions (32) are symmetrically arranged on the side face of the plunger assembly body (31);
when the liquid is sucked, the liquid-transfering device is placed in a container filled with the liquid, and the upper cover (1) is pressed to enable the container to jack up the plunger assembly (3) until the plunger assembly reaches a designated position and then is locked with the shell (5).
2. A portable pipette device according to claim 1, characterized in that the cover (11), the fixing catch (12), the connecting part (13) and the control catch (14) are integrally connected.
3. A portable pipette device according to claim 1, characterized in that the plunger assembly body (31) and the elastic projection (32) are integrally connected.
4. The portable pipette device according to claim 1, wherein the lower end of the plunger assembly (3) is provided with a circular groove, and the silica gel sealing ring (4) is sleeved on the circular groove.
5. The portable pipette device according to claim 1, wherein a plunger assembly interface (6) is provided on the side of the housing (5), and the plunger assembly (3) is snap-connected with the housing (5) through an elastic protrusion (32) and the plunger assembly (3) interface when the liquid sucking is completed.
6. A portable pipette device according to claim 5, characterized in that the housing (5) comprises: the shell body (51) and the suction nozzle (52) are integrally connected with each other through molding.
7. A portable pipette device according to claim 5, characterized in that a chute is also provided in the housing (5), which chute is provided above the plunger assembly interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111505727.1A CN114289089B (en) | 2021-12-10 | 2021-12-10 | Portable pipettor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111505727.1A CN114289089B (en) | 2021-12-10 | 2021-12-10 | Portable pipettor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114289089A CN114289089A (en) | 2022-04-08 |
| CN114289089B true CN114289089B (en) | 2023-11-21 |
Family
ID=80967721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111505727.1A Active CN114289089B (en) | 2021-12-10 | 2021-12-10 | Portable pipettor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114289089B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4601212A (en) * | 1985-07-26 | 1986-07-22 | Shapiro Justin J | Precision micropipettor |
| CN103418447A (en) * | 2012-05-17 | 2013-12-04 | 四川逢春制药有限公司 | Adjustable quantitative pipette |
| CN204952932U (en) * | 2015-08-12 | 2016-01-13 | 程梅 | Portable pipettor for inspection |
| CN208679184U (en) * | 2018-06-01 | 2019-04-02 | 曾灏 | A kind of Novel pipettor |
| CN211190238U (en) * | 2019-09-30 | 2020-08-07 | 江苏意诺飞生物科技有限公司 | Portable quantitative pipettor |
| CN212549609U (en) * | 2020-06-01 | 2021-02-19 | 成都凯威计量技术有限公司 | Quantitative pipettor for liquid detection |
-
2021
- 2021-12-10 CN CN202111505727.1A patent/CN114289089B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4601212A (en) * | 1985-07-26 | 1986-07-22 | Shapiro Justin J | Precision micropipettor |
| CN103418447A (en) * | 2012-05-17 | 2013-12-04 | 四川逢春制药有限公司 | Adjustable quantitative pipette |
| CN204952932U (en) * | 2015-08-12 | 2016-01-13 | 程梅 | Portable pipettor for inspection |
| CN208679184U (en) * | 2018-06-01 | 2019-04-02 | 曾灏 | A kind of Novel pipettor |
| CN211190238U (en) * | 2019-09-30 | 2020-08-07 | 江苏意诺飞生物科技有限公司 | Portable quantitative pipettor |
| CN212549609U (en) * | 2020-06-01 | 2021-02-19 | 成都凯威计量技术有限公司 | Quantitative pipettor for liquid detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114289089A (en) | 2022-04-08 |
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