CN209791586U - liquid suction device for pipette - Google Patents
liquid suction device for pipette Download PDFInfo
- Publication number
- CN209791586U CN209791586U CN201920315410.3U CN201920315410U CN209791586U CN 209791586 U CN209791586 U CN 209791586U CN 201920315410 U CN201920315410 U CN 201920315410U CN 209791586 U CN209791586 U CN 209791586U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- pipette
- sliding sleeve
- liquid suction
- core rod
- 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.)
- Active
Links
Landscapes
- Devices For Use In Laboratory Experiments (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a liquid suction device for pipette, belongs to medical instrument technical field, and convenient operation, the accurate technical problem of imbibition liquid volume when solving and using the pipette to get liquid, move the liquid process, the solution is: the bottom of the sleeve is provided with a liquid suction tube cavity, the sliding sleeve is arranged above the liquid suction tube cavity in an inverted mode, and the side wall of the sliding sleeve slides in the cylindrical hole in a reciprocating mode in the vertical direction; the upper end part of the core rod is detachably arranged at the core part of the top surface of the sliding sleeve, the lower end part of the core rod penetrates through the upper surface of the liquid suction pipe cavity and extends into the liquid suction pipe cavity, and the plug body is fixedly connected with the lower end surface of the core rod; the interface is arranged on the lower end face of the sleeve, the connecting sleeve is arranged outside the interface, the lower end face of the connecting sleeve is arranged to be a bell mouth, and a clamping ring used for being connected with a pipette is arranged on the inner wall of the bell mouth-shaped connecting sleeve. The utility model discloses can make the imbibition device well assemble with the pipette, the leakproofness is good, the interface can cooperate with the pipette of multiple bore, but the volume of the reagent of accurate adjustment suction pipette.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to is a liquid suction device for pipette.
Background
Almost all clinical experiments need to take liquid, transfer liquid, take liquid and transfer liquid, a device frequently used in the process is that an aurilave is matched with a transfer liquid pipe, although the structure is simple, the aurilave is unstable to assemble with the mouth of the transfer liquid pipe, air is easy to suck in during liquid taking, the liquid transfer efficiency is not high, and the operation process is inconvenient; secondly, the reagent is required to be quickly used for treating eyes after being sucked, and the required amount is manually adjusted, so that time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough among the prior art, solve get liquid inefficiency, move liquid inconvenient technical problem when using the pipette, the utility model provides a liquid suction device for pipette
The utility model discloses a following technical scheme realizes.
A pipetting device for pipettors comprising a sleeve, a plug and a core rod, wherein:
the sleeve is in a needle cylinder shape, the bottom of the sleeve is provided with a liquid suction tube cavity, a cylindrical hole is formed between the outer side wall of the liquid suction tube cavity and the inner side wall of the sleeve, the bottom of the cylindrical hole is provided with a limiting block, the sliding sleeve is arranged above the liquid suction tube cavity in an inverted mode, the upper portion of the sliding sleeve extends to the outside of the sleeve, and the side wall of the sliding sleeve slides in the cylindrical hole in a reciprocating mode in the vertical direction;
The upper end part of the core rod is detachably arranged at the core part of the top surface of the sliding sleeve, the lower end part of the core rod penetrates through the upper surface of the liquid suction tube cavity and extends into the liquid suction tube cavity, the plug body is fixedly connected with the lower end surface of the core rod, and the reset spring is arranged between the sliding sleeve and the liquid suction tube cavity and sleeved on the core rod;
Be provided with annular hand rest on the telescopic up end, be provided with the interface with imbibition lumen intercommunication on the telescopic lower terminal surface, the middle part of interface lateral wall is provided with the annular spacing groove to the inside sunken of interface, the externally mounted of interface has adapter sleeve, the middle part of adapter sleeve inner wall is provided with the spacing arch of annular with spacing groove matched with, adapter sleeve's lower terminal surface sets up to the horn mouth shape, is provided with the snap ring that is used for being connected with the pipette on the adapter sleeve's of horn mouth shape inner wall.
furthermore, scales are arranged on the side wall of the sliding sleeve outside the sleeve, and the numerical value of the scales is increased from small to large from top to bottom.
furthermore, the upper end of the core rod is in threaded connection with the core of the top surface of the sliding sleeve, so that the sliding sleeve is convenient to disassemble and replace the return spring.
further, adapter sleeve's material is rubber, the material of the spacing arch of annular and snap ring is hard rubber, makes things convenient for the accurate liquid-transfering pipe mouth of different bores of card.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a pair of imbibition device for pipette, imbibition device and pipette assemble well, and the leakproofness is good, and the interface can cooperate with the pipette of multiple bore, but the volume of the reagent of accurate adjustment suction pipette, easy operation, save time.
Drawings
Fig. 1 is a schematic view of the front view cross-sectional structure of the utility model in the initial state (or the final state) of liquid taking.
fig. 2 is the schematic view of the sectional structure of the liquid taking process of the present invention.
Fig. 3 is a schematic sectional view of the main view of the utility model when the liquid is sucked most.
In the figure, 1 is the sleeve, 2 is the stopper, 3 is imbibition lumen, 4 is the cock body, 5 is the core bar, 6 is the sliding sleeve, 7 is reset spring, 8 is the hand rest, 9 is the interface, 10 is adapter sleeve, 11 is the snap ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
A pipette tip assembly as shown in fig. 1 to 3, comprising a sleeve 1, a plug 4 and a core rod 5, wherein:
The sleeve 1 is in a needle cylinder shape, the bottom of the sleeve 1 is provided with a liquid suction tube cavity 3, a cylindrical hole is formed between the outer side wall of the liquid suction tube cavity 3 and the inner side wall of the sleeve 1, the bottom of the cylindrical hole is provided with a limiting block 2, the sliding sleeve 6 is arranged upside down above the liquid suction tube cavity 3, the upper part of the sliding sleeve 6 extends to the outside of the sleeve 1, and the side wall of the sliding sleeve 6 slides in the cylindrical hole in a reciprocating mode in the vertical direction;
The upper end part of the core rod 5 is detachably arranged at the core part of the top surface of the sliding sleeve 6, the lower end part of the core rod 5 penetrates through the upper surface of the imbibing tube cavity 3 and extends into the imbibing tube cavity 3, the plug body 4 is fixedly connected with the lower end surface of the core rod 5, and the reset spring 7 is arranged between the sliding sleeve 6 and the imbibing tube cavity 3 and is sleeved on the core rod 5;
Be provided with annular hand rest 8 on sleeve 1's the up end, be provided with the interface 9 with imbibition lumen 3 intercommunication on sleeve 1's the lower terminal surface, the middle part of interface 9 lateral wall is provided with the annular spacing groove to the inside sunken of interface 9, interface 9's externally mounted has connecting sleeve 10, the middle part of connecting sleeve 10 inner wall is provided with the annular spacing arch with spacing groove matched with, connecting sleeve 10's lower terminal surface sets up to the horn mouth shape, be provided with on the connecting sleeve 10's of horn mouth shape the inner wall be used for the snap ring 11 be connected with pipette 12, snap ring 11 is the barb shape with connecting sleeve 10's inner wall.
Further, a scale is provided on the side wall of the sliding sleeve 6 outside the sleeve 1.
Furthermore, the upper end of the core rod 5 is in threaded connection with the core of the top surface of the sliding sleeve 6, so that the sliding sleeve is convenient to disassemble and replace the return spring.
Further, adapter sleeve 10's material is rubber, the material of annular spacing arch and snap ring 11 is hard rubber, makes things convenient for the accurate liquid-transfering pipe mouth of different bores of card.
The use process of the device is as follows:
S1, as shown in fig. 1, installing the connection sleeve 10 on the interface 9, making the limit protrusion on the connection sleeve 10 clamped in the limit groove on the interface 9, then, fixedly connecting the lower end of the core rod 5 with the plug 4, fixedly connecting the upper end of the core rod 5 with the top surface of the sliding sleeve 6, and making the sliding sleeve 6 flip-chip mounted in the sleeve 1, at this time, the return spring 7 is in a compressed state, the plug 4 is at the uppermost end in the liquid suction lumen 3, and the zero scale line on the side wall of the sliding sleeve 6 is just flush with the hand rest 8;
S2, as shown in figure 2, the pipette 12 is installed in the snap ring 11, the sliding sleeve 6 is pressed according to the volume of liquid to be taken, the sliding sleeve 6 pushes the plug body 4 to move downwards in the liquid suction tube cavity 3 through the core rod 5, the return spring 7 is in a further compressed state, and the plug body 4 discharges the gas in the liquid suction tube cavity 3, the volume of which is the same as the volume of the liquid to be taken, out of the liquid suction tube cavity 3;
S3, the pipette 12 is moved to the liquid needing to be taken, the pressing of the sliding sleeve 6 is released, the return spring 7 is recovered to a certain state, the return spring 7 pushes the plug body 4 to move upwards in the liquid suction tube cavity 3 through the core rod 5, the air pressure in the liquid suction tube cavity 3 is reduced, the liquid needing to be taken is pushed by the external air pressure to enter the pipette 12, the rebound length of the sliding sleeve 6 can be controlled to control the amount of the liquid to be taken in the liquid taking process, and the liquid taking process is completed.
the above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides a pipetting device for pipette, it includes sleeve (1), cock body (4) and core bar (5), its characterized in that:
The sleeve (1) is in a needle cylinder shape, a liquid suction tube cavity (3) is arranged at the bottom of the sleeve (1), a cylindrical hole is formed between the outer side wall of the liquid suction tube cavity (3) and the inner side wall of the sleeve (1), a limiting block (2) is arranged at the bottom of the cylindrical hole, the sliding sleeve (6) is arranged above the liquid suction tube cavity (3) in an inverted mode, the upper portion of the sliding sleeve (6) extends to the outside of the sleeve (1), and the side wall of the sliding sleeve (6) slides in the cylindrical hole in a reciprocating mode in the vertical direction;
The upper end part of the core rod (5) is detachably arranged at the core part of the top surface of the sliding sleeve (6), the lower end part of the core rod (5) penetrates through the upper surface of the imbibition tube cavity (3) and extends into the imbibition tube cavity (3), the plug body (4) is fixedly connected with the lower end surface of the core rod (5), and the reset spring (7) is arranged between the sliding sleeve (6) and the imbibition tube cavity (3) and sleeved on the core rod (5);
Be provided with annular hand rest (8) on the up end of sleeve (1), be provided with interface (9) with imbibition lumen (3) intercommunication on the lower terminal surface of sleeve (1), the middle part of interface (9) lateral wall is provided with the annular spacing groove to interface (9) inside sunken, the externally mounted of interface (9) has connecting sleeve (10), the middle part of connecting sleeve (10) inner wall is provided with the spacing arch of annular with spacing groove matched with, the lower terminal surface of connecting sleeve (10) sets up to the horn mouth shape, be provided with snap ring (11) that are used for being connected with pipette (12) on the inner wall of connecting sleeve (10) of horn mouth shape.
2. a pipetting device as recited in claim 1 wherein: scales are arranged on the side wall of the sliding sleeve (6) outside the sleeve (1).
3. A pipetting device as recited in claim 1 wherein: the upper end part of the core rod (5) is in threaded connection with the core part of the top surface of the sliding sleeve (6).
4. a pipetting device as recited in claim 1 wherein: the connecting sleeve (10) is made of rubber, and the annular limiting protrusion and the snap ring (11) are made of hard rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315410.3U CN209791586U (en) | 2019-03-13 | 2019-03-13 | liquid suction device for pipette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315410.3U CN209791586U (en) | 2019-03-13 | 2019-03-13 | liquid suction device for pipette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209791586U true CN209791586U (en) | 2019-12-17 |
Family
ID=68824598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920315410.3U Active CN209791586U (en) | 2019-03-13 | 2019-03-13 | liquid suction device for pipette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209791586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505201A (en) * | 2020-04-24 | 2020-08-07 | 李莉 | Potentiometric titrator structure capable of automatically cleaning and discharging waste |
-
2019
- 2019-03-13 CN CN201920315410.3U patent/CN209791586U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505201A (en) * | 2020-04-24 | 2020-08-07 | 李莉 | Potentiometric titrator structure capable of automatically cleaning and discharging waste |
| CN111505201B (en) * | 2020-04-24 | 2022-12-16 | 士业电子科技徐州有限公司 | Potentiometric titrator structure capable of automatically cleaning and discharging waste |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209791586U (en) | liquid suction device for pipette | |
| CN208574657U (en) | A kind of liquid-transfering gun with waterproof ventilated membrane | |
| CN203075974U (en) | Syringe type transfer pipette | |
| CN209173956U (en) | Micro liquid transfer device | |
| CN206996635U (en) | High flux pipettor | |
| CN206659888U (en) | Look for ovum, embryo transfer and wash smart device | |
| CN214346553U (en) | Accurate reagent feeding device | |
| CN213644193U (en) | Liquid transfer rack | |
| CN207951485U (en) | A kind of pipette absorption-asssisting equipment | |
| CN208725734U (en) | Dual-purpose minim pipette | |
| CN205235996U (en) | Easy operation moves liquid buret | |
| CN208407036U (en) | Fluid aspirator for pipette | |
| CN213376701U (en) | Plasma is injector for amylase | |
| CN213886237U (en) | Length-adjustable micropipettor | |
| CN103920549A (en) | Improved micro volumetric pipette | |
| CN218742066U (en) | Medical pipettor with space expansion function | |
| CN216630895U (en) | Multi-range pipettor for experiments | |
| CN216172436U (en) | Extraction device of tissue stem cells | |
| CN215541007U (en) | Pen-holding type liquid-transfering gun | |
| CN213759804U (en) | Negative pressure suction device for operation | |
| CN220531653U (en) | High-applicability pipette tip | |
| CN218979771U (en) | Multi-range accurate liquid suction injector | |
| CN215611667U (en) | Pipette suction head | |
| CN216856760U (en) | Pipettor for clinical examination | |
| CN213943192U (en) | Stem cell micro-adjustable liquid transfer device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |