CN212701990U

CN212701990U - Quantitative liquid transfer device

Info

Publication number: CN212701990U
Application number: CN202021201623.2U
Authority: CN
Inventors: 朱琦; 王佳琦; 杨曼; 李巧玲
Original assignee: Hefei Xingzhi Biotechnology Co Ltd
Current assignee: Hefei Xingzhi Biotechnology Co Ltd
Priority date: 2020-06-27
Filing date: 2020-06-27
Publication date: 2021-03-16
Anticipated expiration: 2030-06-27

Abstract

The utility model discloses a quantitative pipette, which comprises a support plate, a plurality of liquid pipetting parts are fixedly installed in the middle of the upper end of the support plate, and the lower ends of the plurality of liquid pipetting parts penetrate through the middle part of the support plate and extend to the bottom of the support plate. The left part of the upper end of the support plate and the right part of the upper end are fixedly installed with a quantitative device; the upper ends of several of the pipetting parts are fixedly installed with a push plate; Has handle. The quantitative pipette of the utility model adjusts the upper and lower positions of the movable plate by matching the scale value engraved on the scale line with the volume of the inner cavity of several pipetting parts, and uses the tightening knob to fix it. Finally, the pusher is pulled until the push plate is in close contact with the movable plate, which improves the transfer accuracy while realizing quantitative transfer; the push plate can simultaneously drive the push rods on multiple pipetting parts to move upward to realize the quantitative transfer of multiple groups of liquids to be transferred. improve the transfer efficiency.

Description

Quantitative liquid transfer device

Technical Field

The utility model relates to a move liquid technical field, in particular to ration pipettor.

Background

In a laboratory or daily work, quantitative liquid removal is a basic operation, when the quantitative liquid removal is carried out, a liquid transfer device is often needed, and the prior liquid transfer device often has the following problems in liquid transfer: 1. the traditional pipettor cannot accurately control the volume of the sucked liquid, and the quantitative requirement of the transfer liquid is difficult to meet; 2. in addition, in order to meet the requirement of simultaneous performance of multiple groups of experiments in the test process, a liquid is often transferred by using a multiple-time liquid transfer device, so that the transfer efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a ration pipettor can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a ration pipettor, includes the backup pad, backup pad upper end middle part fixed mounting has a plurality of pieces that move, and is a plurality of move a lower extreme and all run through the backup pad middle part and extend to the backup pad below, and is a plurality of equal interval distribution moves between the piece, the common fixed mounting in backup pad upper end left part and upper end right part has a proportioning device, and is a plurality of move the common fixed mounting in liquid piece upper end has the push pedal, push pedal upper end middle part fixed mounting has the spliced pole, the spliced pole upper end runs through the proportioning device middle part, spliced pole upper end fixedly connected with handle.

Preferably, the quantifying device comprises a loop bar and a second loop bar, the loop bar is positioned on the right of the second loop bar, the movable plate is movably sleeved on the outer surfaces of the loop bar and the second loop bar together, and a first through hole is formed in the middle of the movable plate.

Preferably, the fastening knob is installed to the equal screw thread in both ends about the fly leaf, the scale mark has all been carved with to loop bar and No. two loop bar front ends, No. two through-holes have all been opened to loop bar surface and No. two loop bar surfaces, and equidistant distribution between No. two through-holes, the fastening knob all matches with No. two through-holes.

Preferably, the scale interval of carving on the scale mark all matches with the volume of the cavity in a plurality of liquid-transfering pieces, a loop bar lower extreme and No. two loop bar lower extremes respectively with backup pad upper end right part and upper end left part fixed connection.

Preferably, it is a plurality of move the liquid spare and include the liquid reserve pipe, the external screw thread has all been carved with to liquid reserve pipe surface downside, the equal threaded connection of liquid reserve pipe downside has the sharp mouth of imbibition, the sharp mouth inner wall of imbibition has all been carved with internal thread and all matches and threaded connection with the external screw thread, the equal movable mounting in liquid reserve pipe inside has the end cap, the equal fixed mounting in end cap upper end middle part has the push rod, the inside equal fixed mounting in liquid reserve pipe upper end has the rubber circle, the rubber circle middle part all runs through in the push rod upper.

Preferably, the side wall of the plug is hermetically connected with the inner wall of the liquid storage pipe, the upper end of the push rod is fixedly connected with the lower end of the push plate, and the lower end of the liquid storage pipe penetrates through the middle of the support plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discloses in, through the scale interval of being carved with on the scale mark and a plurality of volume phase-match that move the interior cavity of liquid to adjust the fly leaf about the position and utilize the fastening knob to fix, finally stimulate the pushing hands until the push pedal pastes tightly with the fly leaf, realize treating the disposable transfer of transfer liquid, avoid moving the data error that the liquid caused many times, improve the transfer precision when realizing the ration transfer.

(2) In the utility model, the push rods on the plurality of liquid transferring pieces are driven to move upwards through the push plate simultaneously, so that the quantitative transfer of a plurality of groups of liquid to be transferred is realized, the simultaneous performance of a plurality of groups of experiments can be met, and the transfer efficiency is improved; in addition, the liquid suction tip is connected with the liquid storage pipe through threads, so that the liquid suction tip can be replaced conveniently.

Drawings

Fig. 1 is a schematic view of the overall structure of a quantitative pipette of the present invention;

fig. 2 is a schematic structural view of a dosing device of a dosing pipette of the present invention;

fig. 3 is a schematic view of an internal structure of a liquid transfer member of a quantitative liquid transfer device according to the present invention;

fig. 4 is a schematic view of the connection between the liquid transfer member and the push plate of the quantitative liquid transfer device of the present invention.

In the figure: 1. a support plate; 2. connecting columns; 3. a handle; 4. pushing the plate; 5. a pipetting member; 6. a dosing device; 51. a liquid suction tip; 52. a plug; 53. a liquid storage pipe; 54. a push rod; 55. a rubber ring; 56. an external thread; 61. a first loop bar; 62. a second loop bar; 63. a first through hole; 64. a movable plate; 65. a second through hole; 66. scale lines; 67. and (5) fastening a knob.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a ration pipettor, including backup pad 1, 1 upper end middle part fixed mounting of backup pad has a plurality of liquid spare 5 that move, a plurality of liquid spare 5 lower extremes all run through 1 middle part of backup pad and extend to 1 below of backup pad, the impartial interval distribution between a plurality of liquid spare 5 that move, the common fixed mounting in 1 upper end left part of backup pad and upper end right part has proportioning device 6, the common fixed mounting in a plurality of liquid spare 5 upper ends has

push pedal

4, 4 upper end middle parts fixed mounting of push pedal has spliced pole 2, the 6 middle parts of proportioning device are run through to spliced pole 2 upper end, 2 upper ends fixedly connected with handles 3 of.

In order to mount the quantitative device 6, the quantitative device 6 comprises a first loop bar 61 and a second loop bar 62, the first loop bar 61 is positioned at the right side of the second loop bar 62, a movable plate 64 is movably sleeved on the outer surfaces of the first loop bar 61 and the second loop bar 62 together, a first through hole 63 is formed in the middle of the movable plate 64, and the movable plate 64 can limit the movement of the push plate 4; fastening knobs 67 are mounted at the left end and the right end of the movable plate 64 in a threaded mode, scale marks 66 are carved at the front ends of the first loop bar 61 and the second loop bar 62, quantitative pipetting operation can be achieved through the scale marks 66, second through holes 65 are formed in the outer surface of the first loop bar 61 and the outer surface of the second loop bar 62 and are distributed at equal intervals among the second through holes 65, the fastening knobs 67 are matched with the second through holes 65, and the fastening knobs 67 and the second through holes 65 are adjusted and fixed on the movable plate 64; in order to realize the quantitative transfer of the transfer liquid, scale values engraved on the scale lines 66 are matched with the volumes of the cavities in the plurality of liquid-transferring pieces 5, and the lower ends of the first loop bar 61 and the second loop bar 62 are fixedly connected with the right part of the upper end and the left part of the upper end of the support plate 1 respectively; the plurality of liquid transferring pieces 5 comprise liquid storage pipes 53, external threads 56 are respectively carved on the lower sides of the outer surfaces of the liquid storage pipes 53, liquid absorbing tip nozzles 51 are respectively in threaded connection with the lower sides of the liquid storage pipes 53, internal threads are respectively carved on the inner walls of the liquid absorbing tip nozzles 51 and are matched with the external threads 56 and in threaded connection with the internal threads, plugs 52 are respectively movably installed inside the liquid storage pipes 53, push rods 54 are respectively and fixedly installed in the middle parts of the upper ends of the plugs 52, rubber rings 55 are respectively and fixedly installed inside the upper ends of the liquid storage pipes 53, the upper ends of the push rods 54 respectively penetrate through the middle parts of the rubber rings 55, and the liquid absorbing tip; in order to facilitate the smooth moving of the liquid, the side wall of the plug 52 is hermetically connected with the inner wall of the liquid storage tube 53, the smooth moving of the liquid can be guaranteed by the hermetic connection, the upper end of the push rod 54 is fixedly connected with the lower end of the push plate 4, and the lower end of the liquid storage tube 53 penetrates through the middle part of the support plate 1.

It should be noted that, the utility model relates to a quantitative pipette, when the staff need move the liquid, can manually move the fly leaf 64 up and down, confirm the volume of moving the liquid according to moving the liquid needs, then move the fly leaf 64 to the position that waits to move the liquid that scale mark 66 corresponds, and utilize fastening knob 67 on the fly leaf 64 to be connected with No. two through-holes 65, realize the fixed of fly leaf 64, then insert the imbibition nozzle on the pipettor into waiting to transfer the liquid, then the staff manually upwards pulls handle 3, make spliced pole 2 drive push pedal 4 upwards to move, and finally drive push rod 54 and end cap 52 upwards in moving the liquid spare 5, thus make waiting to transfer the liquid and get into in the liquid storage tube 53 through imbibition sharp mouth 51, pull up push pedal 4 and until push pedal 4 butt spliced pole 2, can realize the disposable transfer of waiting to transfer the liquid, avoid moving the data error that the liquid caused many times, the transfer precision is improved while the quantitative transfer is realized; in addition, the arrangement of the plurality of liquid transferring pieces 5 can simultaneously realize quantitative transfer of a plurality of groups of liquid to be transferred, so that the transfer efficiency is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A quantitative pipette, comprising a support plate (1), characterized in that: a number of pipetting parts (5) are fixedly installed in the middle of the upper end of the support plate (1), and the lower ends of some of the pipetting parts (5) are fixedly installed. All of them penetrate through the middle of the support plate (1) and extend to the bottom of the support plate (1), the pipetting parts (5) are evenly spaced apart, and the upper left part of the support plate (1) and the upper right part of the upper end are fixed and installed together There is a quantitative device (6), a push plate (4) is fixedly installed on the upper ends of several of the pipetting parts (5), and a connecting column (2) is fixedly installed in the middle of the upper end of the push plate (4). 2) The upper end runs through the middle of the quantitative device (6), and the upper end of the connecting column (2) is fixedly connected with a handle (3).

2. A quantitative pipette according to claim 1, characterized in that: the quantitative device (6) comprises a No. 1 sleeve rod (61) and a No. 2 sleeve rod (62), the No. 1 sleeve rod (61) is located on the right side of the No. 2 sleeve rod (62), the outer surfaces of the No. 1 sleeve rod (61) and the No. 2 sleeve rod (62) are jointly movably sleeved with a movable plate (64), and the movable plate (64) ) in the middle of a through hole (63).

3. A quantitative pipette according to claim 2, characterized in that: the left and right ends of the movable plate (64) are threadedly mounted with tightening knobs (67), and the No. 1 sleeve rod (61) The front end of the No. 1 sleeve rod (62) and the No. 2 sleeve rod (62) are engraved with a scale line (66), and the No. 2 through hole (65) is opened on the outer surface of the No. 1 sleeve rod (61) and the No. 2 sleeve rod (62). The second through holes (65) are equally spaced, and the tightening knobs (67) are matched with the second through holes (65).

4. A quantitative pipette according to claim 3, characterized in that: the scale value engraved on the scale line (66) matches the volume of the inner cavity of several pipetting parts (5), so The lower end of the No. 1 sleeve rod (61) and the lower end of the No. 2 sleeve rod (62) are respectively fixedly connected with the upper right part and the upper left part of the support plate (1).

5. A quantitative pipette according to claim 1, characterized in that: a plurality of the pipetting parts (5) comprise a liquid storage tube (53), and the lower side of the outer surface of the liquid storage tube (53) is An external thread (56) is engraved, the lower side of the liquid storage pipe (53) is threadedly connected with a liquid suction tip (51), and the inner wall of the liquid suction tip (51) is engraved with an internal thread, and the internal thread is all threaded with the same. The external threads (56) are matched and connected in a threaded connection, a plug (52) is movably installed inside the liquid storage pipe (53), and a push rod (54) is fixedly installed in the middle of the upper end of the plug (52). A rubber ring (55) is fixedly installed inside the upper end of the liquid storage pipe (53), and the upper end of the push rod (54) penetrates the middle of the rubber ring (55).

6. A quantitative pipette according to claim 5, characterized in that: the side wall of the plug (52) is sealed with the inner wall of the liquid storage tube (53), and the upper end of the push rod (54) is It is fixedly connected with the lower end of the push plate (4), and the lower end of the liquid storage pipe (53) penetrates the middle of the support plate (1).