CN211099118U

CN211099118U - Quantitative liquid transfer device

Info

Publication number: CN211099118U
Application number: CN201921913634.0U
Authority: CN
Inventors: 郭陆军
Original assignee: Henan Taifu Medical Laboratory Center Co ltd
Current assignee: Henan Taifu Medical Laboratory Center Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-07-28
Anticipated expiration: 2029-11-07

Abstract

The utility model belongs to the technical field of quantitative pipettors, in particular to a quantitative pipettor, which comprises a quantitative cylinder, wherein the outer surface of the quantitative cylinder is in threaded connection with a rotating ring, the bottom of the rotating ring is fixedly connected with a connecting frame, the bottom of the connecting frame is fixedly connected with a gun point, the gun point is in threaded connection with the quantitative cylinder, the inner wall of the gun point is provided with a limiting block and a filter element, the bottom of the quantitative cylinder is in lap joint with the top of the limiting block, and the top of the quantitative cylinder is provided with a through hole; the utility model discloses, through the setting of swivel becket, link and rifle point, swivel becket, link and rifle point fixed connection become integrative, just can realize swivel becket and a quantitative section of thick bamboo through rotatory swivel becket, separation between a rifle point and a quantitative section of thick bamboo to through the setting of rotating the groove, made things convenient for the rotation of swivel becket, make its operation more convenient, also avoid the hand to contact the raffinate on the rifle point, saved the time of wearing gloves waste.

Description

Quantitative liquid transfer device

Technical Field

The utility model belongs to the technical field of the ration pipettor, concretely relates to ration pipettor.

Background

Background artbackground quantitative pipettes, which adjust a measurement volume by adjusting a state in which a spring or a piston rod is stretched to form different pressures, are widely used in molecular biology tests and microbiology tests. The pipettors with various measuring range ranges can accurately and conveniently measure liquid with preset volume, and lay a foundation for the stability and repeatability of a test system.

In order to avoid pollution, when a quantitative pipettor is used, a gun tip is sleeved on a suction port, a solution to be measured is sucked through the gun tip, after the suction is finished, the gun tip is taken down and replaced by other gun tips, the gun tip can be withdrawn from a pipette tube only by contacting the gun tip with hands during the taking down, so that residual liquid on the gun tip can be inevitably contacted, and the time consumed by the test can be increased if the quantitative pipettor is used with gloves.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a quantitative pipettor, has the characteristics of conveniently replacing the rifle point.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a quantitative pipettor, includes a quantification section of thick bamboo, the surface threaded connection of a quantification section of thick bamboo has the swivel becket, the bottom fixedly connected with link of swivel becket, the bottom fixedly connected with rifle point of link, rifle point and a quantification section of thick bamboo threaded connection, the inner wall of rifle point is provided with stopper and filter core, the bottom of a quantification section of thick bamboo and the top overlap joint of stopper, the through-hole has been seted up at the top of a quantification section of thick bamboo, swing joint has the piston in the quantification section of thick bamboo, the top fixedly connected with piston rod of piston, the surface of a quantification section of thick bamboo is provided with.

Preferably, the top end of the piston rod penetrates through the through hole and is fixedly connected with a connecting plate.

Preferably, the outer surface of the quantitative cylinder is provided with an external thread, the inner wall of the rotating ring is provided with an internal thread, and the quantitative cylinder is in threaded connection with the rotating ring through the internal thread and the external thread.

Preferably, the inner wall of the top end of the gun point is provided with an internal thread, the outer surface of the bottom end of the quantifying cylinder is provided with an external thread, and the quantifying cylinder is in threaded connection with the gun point through the internal thread and the external thread.

Preferably, the outer surface of the rotating ring is provided with a rotating groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, through the setting of swivel becket, link and rifle point, swivel becket, link and rifle point fixed connection become integrative, just can realize swivel becket and a quantitative section of thick bamboo through rotatory swivel becket, separation between a rifle point and a quantitative section of thick bamboo to through the setting of rotating the groove, made things convenient for the rotation of swivel becket, make its operation more convenient, also avoid the hand to contact the raffinate on the rifle point, saved the time of wearing gloves waste.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the middle scale of the present invention;

FIG. 3 is an enlarged schematic structural view of the position A of the present invention;

in the figure: 1. a connecting plate; 2. a piston rod; 3. a through hole; 4. a dosing cylinder; 5. a piston; 6. a rotating ring; 7. a rotating groove; 8. a connecting frame; 9. a gun tip; 10. calibration; 11. a limiting block; 12. and (3) a filter element.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a quantitative pipettor comprises a quantitative barrel 4, wherein a rotating ring 6 is in threaded connection with the outer surface of the quantitative barrel 4, a connecting frame 8 is fixedly connected to the bottom of the rotating ring 6, a gunpoint 9 is fixedly connected to the bottom end of the connecting frame 8, the gunpoint 9 is in threaded connection with the quantitative barrel 4, a limiting block 11 and a filter element 12 are arranged on the inner wall of the gunpoint 9, the bottom end of the quantitative barrel 4 is in lap joint with the top of the limiting block 11, the rotating ring 6, the connecting frame 8 and the gunpoint 9 are fixedly connected into a whole through the arrangement of the rotating ring 6, the connecting frame 8 and the gunpoint 9, the rotating ring 6 and the quantitative barrel 4 can be separated from each other through the rotating ring 6, the rotating ring 6 can be conveniently rotated through a rotating groove 7, the quantitative pipettor can be operated more conveniently, the hand is prevented from contacting with residual liquid on the gunpoint 9, and the time wasted in gloves is saved, the top of the quantitative cylinder 4 is provided with a through hole 3, a piston 5 is movably connected in the quantitative cylinder 4, the top end of the piston 5 is fixedly connected with a piston rod 2, and the outer surface of the quantitative cylinder 4 is provided with scales 10.

Specifically, the top end of the piston rod 2 penetrates through the through hole 3 and is fixedly connected with the connecting plate 1, and the piston rod 2 and the piston 5 are convenient to move through the arrangement of the connecting plate 1.

Specifically, the outer surface of the quantitative cylinder 4 is provided with external threads, the inner wall of the rotating ring 6 is provided with internal threads, and the quantitative cylinder 4 is in threaded connection with the rotating ring 6 through the internal threads and the external threads.

Specifically, the top inner wall of rifle point 9 is provided with the internal thread, the bottom surface of a quantification section of thick bamboo 4 is provided with the external screw thread, a quantification section of thick bamboo 4 passes through internal thread and external screw thread threaded connection with rifle point 9.

Specifically, the outer surface of the rotating ring 6 is provided with a rotating groove 7, and the rotating ring 6 is convenient to rotate through the arrangement of the rotating groove 7.

The utility model discloses a theory of operation and use flow: the utility model discloses, when finishing using and dismantling rifle point 9, the finger is used on rotating groove 7, then rotatory swivel ring 6 makes swivel ring 6 and quantitative section of thick bamboo 4, separation between rifle point 9 and the quantitative section of thick bamboo 4 to realized the separation between rifle point 9 and the quantitative section of thick bamboo 4, also can replace filter core 12 simultaneously.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dosing pipette comprising a dosing cylinder (4), characterized in that: the surface threaded connection of a ration section of thick bamboo (4) has rotating ring (6), the bottom fixedly connected with link (8) of rotating ring (6), the bottom fixedly connected with rifle point (9) of link (8), rifle point (9) and a ration section of thick bamboo (4) threaded connection, the inner wall of rifle point (9) is provided with stopper (11) and filter core (12), the bottom of a ration section of thick bamboo (4) and the top overlap joint of stopper (11), through-hole (3) have been seted up at the top of a ration section of thick bamboo (4), swing joint has piston (5) in a ration section of thick bamboo (4), top fixedly connected with piston rod (2) of piston (5), the surface of a ration section of thick bamboo (4) is provided with scale (10).

2. A dosing pipette as claimed in claim 1, characterised in that: the top end of the piston rod (2) penetrates through the through hole (3) and is fixedly connected with the connecting plate (1).

3. A dosing pipette as claimed in claim 1, characterised in that: the outer surface of the quantifying cylinder (4) is provided with an external thread, the inner wall of the rotating ring (6) is provided with an internal thread, and the quantifying cylinder (4) is in threaded connection with the rotating ring (6) through the internal thread and the external thread.

4. A dosing pipette as claimed in claim 1, characterised in that: the inner wall of the top end of the gun point (9) is provided with an internal thread, the outer surface of the bottom end of the quantifying cylinder (4) is provided with an external thread, and the quantifying cylinder (4) is in threaded connection with the gun point (9) through the internal thread and the external thread.

5. A dosing pipette as claimed in claim 1, characterised in that: the outer surface of the rotating ring (6) is provided with a rotating groove (7).