CN213824876U - Pipettor convenient to adjust feed liquor volume - Google Patents
Pipettor convenient to adjust feed liquor volume Download PDFInfo
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- CN213824876U CN213824876U CN202022010330.2U CN202022010330U CN213824876U CN 213824876 U CN213824876 U CN 213824876U CN 202022010330 U CN202022010330 U CN 202022010330U CN 213824876 U CN213824876 U CN 213824876U
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- liquid
- threaded rod
- pressing rod
- pipette
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Abstract
The utility model relates to a chemistry ration moves gets technical field, especially relates to a pipettor convenient to adjust feed liquor volume, include: a liquid accommodating cavity is arranged in the shell, and through holes are arranged at two ends of the shell; the transparent area of the shell is provided with scale marks; the liquid inlet pipe is communicated with a through hole at one end of the shell; the pressing rod penetrates through the through hole at the other end of the shell and moves along the axial direction of the pressing rod; one end of the pressing rod is provided with a piston which is connected with the shell in a sliding way; threaded rod and casing threaded connection, the spacing ring is installed to the one end of threaded rod, runs through the spacing ring according to the pressure lever, and the axis of rotation of threaded rod, the axis of spacing ring all with the axial coincidence according to the pressure lever. The utility model provides a problem that the feed liquor volume of current pipettor can not adjust in real time. A liquid accommodating cavity is arranged in the shell of the liquid transferring device and is used for accommodating liquid; the transparent area of casing is provided with the scale mark, and the scale mark is used with pressing down pole and threaded rod collocation to realize the function of ration feed liquor, real-time regulation.
Description
Technical Field
The utility model relates to a chemistry ration moves gets technical field, especially relates to a pipettor convenient to adjust feed liquor volume.
Background
A pipette, also known as a pipette gun, is a device for transferring liquid quantitatively. In conducting analytical testing studies, small or minute amounts of liquid are typically removed using a pipette (pipette).
The liquid transfer device generally pre-adjusts the liquid inlet quantity, and when the measuring range is adjusted, if the liquid is adjusted from a large volume to a small volume, the knob is rotated anticlockwise according to a normal adjusting method; however, if the volume is adjusted from a small volume to a large volume, the scale knob can be rotated clockwise to the scale exceeding the measuring range, and then the scale knob is adjusted back to the set volume, so that the highest accuracy of the measurement can be ensured. In this process, tens of millions of buttons need not be unscrewed out of range, otherwise internal mechanical devices can be stuck and the pipette gun can be damaged.
In prior art, the feed liquor volume adjustment process of pipettor is comparatively troublesome to can not adjust the feed liquor volume at the feed liquor in-process, can not accomplish to adjust the feed liquor volume in real time.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims at providing a pipettor convenient to adjust feed liquor volume for solve the problem that the feed liquor volume of pipettor can not adjust in real time among the prior art. A liquid accommodating cavity is arranged in the shell of the liquid transferring device and is used for accommodating liquid; the transparent area of casing is provided with the scale mark, and the scale mark is used with pressing down pole and threaded rod collocation to realize the function of ration feed liquor, real-time regulation.
In order to achieve the above objects and other related objects, the present invention provides a liquid transfer device convenient for adjusting liquid feeding amount, the liquid transfer device includes:
the liquid container comprises a shell, a liquid storage cavity and a liquid outlet, wherein through holes are formed in two ends of the shell; the transparent area of the shell is provided with scale marks;
the liquid inlet pipe is communicated with the through hole at one end of the shell and is connected with the shell;
the pressing rod penetrates through the through hole at the other end of the shell and moves along the axial direction of the pressing rod; a piston is arranged at one end of the pressing rod and is in sliding connection with the shell;
the threaded rod is in threaded connection with the shell, a limiting ring is mounted at one end of the threaded rod, the pressing rod penetrates through the limiting ring, and the rotation axis of the threaded rod is axially overlapped with that of the pressing rod;
wherein, the press rod and the threaded rod are arranged at the same end of the shell.
A liquid accommodating cavity is arranged in the shell of the liquid transferring device and is used for accommodating liquid; the transparent area of casing is provided with the scale mark, and the scale mark is used with pressing down pole and threaded rod collocation to realize the function of ration feed liquor, real-time regulation. The piston is pushed by the pressing rod and is in sliding connection with the shell, so that liquid inlet and liquid outlet are realized. The threaded rod is in threaded connection with the shell, the limiting ring is driven to move up and down by rotating the threaded rod, and the position of the limiting ring limits the motion track of the piston, so that the function of adjusting the sampling volume is realized. The height of the limiting ring can be adjusted through the threaded rod in the liquid inlet process, so that the function of adjusting the liquid inlet amount in real time is realized.
The rotation axis of above-mentioned threaded rod, the rotation axis of spacing ring all with press the axial coincidence of depression bar for threaded rod and spacing ring can not take place the circumstances such as screens with pressing the depression bar at the pivoted in-process, improve the structural stability of whole pipettor.
In an embodiment of the present invention, the casing includes a transparent inner casing and an outer casing, the two ends of the transparent inner casing are provided with through holes, and the transparent region of the outer casing is provided with scale marks. Through setting up transparent inner shell and shell for the overall structure of casing is more firm, and mechanical strength is higher, and is difficult for the damage.
In an embodiment of the present invention, the liquid inlet pipe and the housing are connected as a whole. The feed liquor pipe is connected as an organic whole with the casing, avoids the feed liquor pipe scheduling problem that drops.
In an embodiment of the present invention, the liquid inlet pipe is detachably connected to the suction head. The suction head is generally a disposable suction head.
In an embodiment of the present invention, the other end of the pressing rod is provided with a plastic pad. The plastic pad is arranged at the top end of the pressing rod and has certain elasticity, so that the hands of an operator can be protected.
In an embodiment of the present invention, a sealing ring is disposed between the piston and the transparent inner shell, and the sealing ring is installed on a side surface of the piston. Through setting up the sealing ring and make the activity separate the formation from the leakproofness between two cavitys better, also can improve the precision of pipettor.
In an embodiment of the present invention, the other end of the threaded rod is provided with a rotating handle. Through setting up the rotation handle, thereby be convenient for rotate the height of threaded rod adjustment spacing ring.
As above, the utility model discloses a pipettor convenient to adjust feed liquor volume has following beneficial effect: a liquid accommodating cavity is arranged in the shell of the liquid transferring device and is used for accommodating liquid; the transparent area of casing is provided with the scale mark, and the scale mark is used with pressing down pole and threaded rod collocation to realize the function of ration feed liquor, real-time regulation. The piston is pushed by the pressing rod and is in sliding connection with the shell, so that liquid inlet and liquid outlet are realized. The threaded rod is in threaded connection with the shell, the limiting ring is driven to move up and down by rotating the threaded rod, and the position of the limiting ring limits the motion track of the piston, so that the function of adjusting the sampling volume is realized. The height of the limiting ring can be adjusted through the threaded rod in the liquid inlet process, so that the function of adjusting the liquid inlet amount in real time is realized.
Drawings
Fig. 1 is a schematic overall view of a pipette convenient for adjusting liquid feeding amount according to an embodiment of the present invention.
Fig. 2 is a schematic diagram showing an internal view of a pipette (with a tip installed) for conveniently adjusting the liquid inlet amount according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an inside of a pipette (where no pipette tip is installed) for conveniently adjusting the liquid inlet amount according to an embodiment of the present invention.
Fig. 4 is a schematic view illustrating a connection between a position-limiting ring and a pressing rod of a pipette convenient for adjusting liquid inlet amount according to an embodiment of the present invention.
Fig. 5 is a schematic view illustrating a connection between a piston and a pressing rod of a pipette convenient for adjusting liquid inlet amount according to an embodiment of the present invention.
Fig. 6 is a schematic view illustrating a connection between a limit ring and a threaded rod of a pipette convenient for adjusting liquid inlet amount according to an embodiment of the present invention.
Description of the element reference numerals
1-shell, 101-transparent inner shell, 102-outer shell; 2-graduation line; 3-a liquid inlet pipe; 4-a suction head; 5-pressing the lever; 6-a piston; 7-a sealing ring; 8-plastic cushion; 9-a threaded rod; 10-a spacing ring; 11-turning the handle.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 to 6. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Referring to fig. 1, the present invention provides a liquid transfer device convenient for adjusting liquid feeding amount, the liquid transfer device includes:
referring to fig. 2, a housing 1, wherein a liquid accommodating chamber is arranged in the housing 1; the shell 1 comprises a transparent inner shell 101 and an outer shell 102, through holes are formed in two ends of the transparent inner shell 101, and scale marks 2 are arranged in a transparent area of the outer shell 102;
referring to fig. 2 and 3, a liquid inlet pipe 3, wherein the liquid inlet pipe 3 is communicated with a through hole at one end of the transparent inner casing 101, and the liquid inlet pipe 3 is integrally connected with the transparent inner casing 101; the liquid inlet pipe 3 is detachably connected with the suction head 4;
referring to fig. 4 and 5, a pressing rod 5, where the pressing rod 5 penetrates through a through hole at the other end of the transparent inner shell 101, and the pressing rod 5 moves along an axial direction of the pressing rod 5; a piston 6 is installed at one end of the pressing rod 5, and the piston 6 is connected with the transparent inner shell 101 in a sliding manner; a sealing ring 7 is arranged between the piston 6 and the transparent inner shell 101, and the sealing ring 7 is installed on the side surface of the piston 6; the other end of the pressing rod 5 is provided with a plastic pad 8;
referring to fig. 4 and 6, a threaded rod 9, the threaded rod 9 being in threaded connection with the housing 1, a limit ring 10 being installed at one end of the threaded rod 9, the pressing rod 5 penetrating the limit ring 10, and a rotation axis of the threaded rod 9 coinciding with an axial direction of the pressing rod 5; the other end of the threaded rod 9 is provided with a rotating handle 11;
wherein, the pressing rod 5 and the threaded rod 9 are arranged at the same end of the shell 1.
Liquid inlet amount adjusting process: the threaded rod 9 is rotated by rotating the handle 11, the threaded rod 9 drives the limiting ring 10 to gradually move downwards or upwards, and the adjusting end point is determined according to the scale marks 2. During adjustment, if the threaded rod 9 is moved downwards, the stop ring 10 pushes the piston 6 downwards.
Liquid inlet process: after the liquid inlet amount is adjusted, the suction head 4 is installed, the pressing rod 5 is pushed to enable the piston 6 to move downwards and enable all gas in the liquid containing cavity to be discharged, the suction head 4 is stretched into the liquid level to suck liquid, the pressing rod 5 is released, the pressing rod 5 is enabled to move upwards gradually under the action of pressure difference, and finally the piston 6 is in close contact with the limiting ring 10.
To sum up, the shell 1 of the liquid transfer device of the utility model is provided with a liquid containing cavity for containing liquid; the transparent area of casing 1 is provided with scale mark 2, and scale mark 2 is used with pressing rod 5 and threaded rod 9 collocation to realize the function of ration feed liquor, real-time regulation. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A pipette that facilitates adjustment of a liquid intake, the pipette comprising:
the liquid storage device comprises a shell (1), wherein a liquid containing cavity is arranged in the shell (1), and through holes are formed in two ends of the shell (1); the transparent area of the shell (1) is provided with scale marks (2);
the liquid inlet pipe (3) is communicated with a through hole at one end of the shell (1), and the liquid inlet pipe (3) is connected with the shell (1);
the pressing rod (5) penetrates through a through hole in the other end of the shell (1), and the pressing rod (5) moves along the axial direction of the pressing rod (5); a piston (6) is installed at one end of the pressing rod (5), and the piston (6) is connected with the shell (1) in a sliding mode;
the threaded rod (9) is in threaded connection with the shell (1), a limiting ring (10) is mounted at one end of the threaded rod (9), the pressing rod (5) penetrates through the limiting ring (10), and the rotation axis of the threaded rod (9) is overlapped with the axial direction of the pressing rod (5);
wherein, the pressing rod (5) and the threaded rod (9) are arranged at the same end of the shell (1).
2. A pipette for facilitating the adjustment of intake as claimed in claim 1, wherein: the shell (1) comprises a transparent inner shell (101) and an outer shell (102), through holes are formed in two ends of the transparent inner shell (101), and scale marks (2) are arranged in a transparent area of the outer shell (102).
3. A pipette facilitating the adjustment of a liquid intake according to claim 1 or 2, characterized in that: the liquid inlet pipe (3) and the shell (1) are connected into a whole.
4. A pipette for facilitating the adjustment of intake as claimed in claim 3, wherein: the liquid inlet pipe (3) is detachably connected with the suction head (4).
5. A pipette for facilitating the adjustment of intake as claimed in claim 1, wherein: the other end of the pressing rod (5) is provided with a plastic pad (8).
6. A pipette for facilitating the adjustment of intake as claimed in claim 2, wherein: and a sealing ring (7) is arranged between the piston (6) and the transparent inner shell (101), and the sealing ring (7) is arranged on the side surface of the piston (6).
7. A pipette for facilitating the adjustment of intake as claimed in claim 1, wherein: the other end of the threaded rod (9) is provided with a rotating handle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022010330.2U CN213824876U (en) | 2020-09-14 | 2020-09-14 | Pipettor convenient to adjust feed liquor volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022010330.2U CN213824876U (en) | 2020-09-14 | 2020-09-14 | Pipettor convenient to adjust feed liquor volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213824876U true CN213824876U (en) | 2021-07-30 |
Family
ID=77006402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022010330.2U Active CN213824876U (en) | 2020-09-14 | 2020-09-14 | Pipettor convenient to adjust feed liquor volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213824876U (en) |
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2020
- 2020-09-14 CN CN202022010330.2U patent/CN213824876U/en active Active
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