CN213286909U

CN213286909U - Adjustable liquid transfer device

Info

Publication number: CN213286909U
Application number: CN202020988271.3U
Authority: CN
Inventors: 方丽; 张筠; 郑长宣
Original assignee: Tongze Hexin Beijing Pharmaceutical Technology Co ltd
Current assignee: Tongze Hexin Beijing Pharmaceutical Technology Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-05-28
Anticipated expiration: 2030-06-03

Abstract

The utility model is suitable for a pipette auxiliary device field provides an adjustable pipettor, a serial communication port, including main pipette, second pipette, third pipette, fourth pipette, fifth pipette, buckle becket bridle and fixed latch closure, the beneficial effects of the utility model are that: the pipettes of four kinds of different specifications are used in a matched mode, so that large-capacity and small-capacity pipetting operation can be achieved, high-precision numerical value pipetting operation can also be achieved, liquid is not required to be taken from liquid for many times, operation steps are reduced, the working efficiency is improved, and the precision of the liquid is improved.

Description

Adjustable liquid transfer device

Technical Field

The utility model belongs to pipette auxiliary device field especially relates to an adjustable pipettor.

Background

Pipettors are gauges used to accurately remove a volume of solution. A pipette is a type of measurement instrument that is used only to measure the volume of solution it emits. It is a slender glass tube with an expansion part in the middle. The lower end of the tube body is in a sharp mouth shape, and a marked line is carved at the neck of the tube body at the upper end and is a mark for obtaining the accurate volume.

Shaking up the solution to be absorbed, pouring a small part of the solution to be absorbed into a small clean and dry beaker, absorbing water inside and outside the tip of the cleaned pipette by using filter paper, inserting the pipette into the small beaker to absorb the solution, immediately pressing the pipe orifice by using a right index finger when the pipette is absorbed to 1/3 of the capacity of the pipette, taking out the pipette, transversely holding and rotating the pipette to enable the solution to flow over the inner wall of the whole pipe, and discharging the solution into a waste liquid cup from the lower tip. By doing so, the solution can be absorbed after rinsing for 3-4 times.

And inserting the pipette to be subjected to liquid suction and rinsing into a position 1-2 cm below the surface to be subjected to liquid suction, and sucking the solution by using an ear sucking ball according to the operation method (note that the pipette cannot be inserted too deeply into the solution, and needs to be inserted downwards while sucking, so that the depth is always kept). When the liquid level in the pipette rises to a position about 1-2 cm above the marked line, the nozzle of the pipette is quickly blocked by the index finger of the right hand (at the moment, if the solution falls below the standard line, the solution is sucked again), the pipette is lifted out of the surface to be pipetted, the tip of the pipette is made to contact the inner wall of the container to be pipetted for a moment and then lifted, and a small amount of solution adhered to the lower end of the pipette or the pipette is wiped by using filter paper. (the pipette or pipette should be held vertically and not tilted while moving the pipette or pipette). When the prior device is used for transferring liquid with large capacity, the precision of a pipette with large capacity is not enough, the capacity of a pipette with small capacity is not enough, the experimental operation steps are increased, and the precision of the prior pipette is not enough.

SUMMERY OF THE UTILITY MODEL

The utility model provides an adjustable pipettor aims at solving the problem of the troublesome poeration that the current device precision leads to inadequately.

The utility model discloses a realize like this, an adjustable pipettor, its characterized in that, including main pipette, second pipette, third pipette, fourth pipette, fifth pipette, buckle ring and fixed latch closure, main pipette includes main push rod, trunk line and main straw, main push rod installs in the trunk line, main straw installs the lower terminal surface at the trunk line, the second pipette is located the left side of main pipette, the second pipette includes second push rod, second pipeline and second straw, the second push rod installs in the second pipeline, the second straw installs the lower terminal surface at the second pipeline, the third pipette is located the right side of main pipette, the third pipette includes third push rod, third pipeline and third straw, the third push rod installs in the third pipeline, the third suction pipe is arranged on the lower end surface of the third pipeline, the fourth pipette is positioned right in front of the main pipette, the fourth pipette comprises a fourth push rod, a fourth pipeline and a fourth suction pipe, the fourth push rod is arranged in the fourth pipeline, the fourth suction pipe is arranged on the lower end surface of the fourth pipeline, the fifth pipette comprises a fifth push rod, a fifth pipeline and a fifth suction pipe, the fifth push rod is arranged in the fifth pipeline, the fifth suction pipe is arranged on the lower end surface of the fifth pipeline, the main pipette, the second pipette, the third pipette, the fourth pipette and the fifth pipette are fixedly connected by two fixing buckles, the lower ends of the main suction pipe, the second suction pipe, the third suction pipe, the fourth suction pipe and the fifth suction pipe are fixed together through the bayonet ring.

Further, the capacities in the main duct, the second duct, the third duct, the fourth duct and the fifth duct are respectively equal to the minimum scale capacities of the main duct, the second duct, the third duct, the fourth duct and the fifth duct.

Furthermore, the main pipeline, the second pipeline, the third pipeline, the fourth pipeline, the fifth pipeline and the fixing buckles are made of transparent materials.

Further, the main pipe, the second pipe, the third pipe, the fourth pipe, and the fifth pipe are all formed with capacity scales.

Still further, the main pipette capacity is greater than the second pipette capacity, the second pipette capacity is greater than the third pipette capacity, the third pipette capacity is greater than the fourth pipette capacity, and the fourth pipette capacity is greater than the fifth pipette capacity.

Compared with the prior art, the beneficial effects of the utility model are that: the pipettes of four kinds of different specifications are used in a matched mode, so that large-capacity and small-capacity pipetting operation can be achieved, high-precision numerical value pipetting operation can also be achieved, liquid is not required to be taken from liquid for many times, operation steps are reduced, the working efficiency is improved, and the precision of the liquid is improved.

Drawings

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

fig. 2 is a second perspective view provided by the present invention;

fig. 3 is a third perspective view provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2 and 3, an adjustable pipette is characterized by comprising a main pipette 1, a second pipette 2, a third pipette 3, a fourth pipette 4, a fifth pipette 5, a snap ring 6 and a fixing buckle 7, wherein the main pipette 1 comprises a main push rod 101, a main pipe 102 and a main suction pipe 103, the main push rod 101 is installed in the main pipe 102, the main suction pipe 103 is installed on the lower end surface of the main pipe 102, the second pipette 2 is located on the left side of the main pipette 1, the second pipette 2 comprises a second push rod 201, a second pipe 202 and a second suction pipe 203, the second push rod 201 is installed in the second pipe 202, the second suction pipe 203 is installed on the lower end surface of the second pipe 202, the third pipette 3 is located on the right side of the main pipette 1, the third pipette 3 comprises a third push rod 301, a third pipe 302 and a third suction pipe 303, the third push rod 301 is installed in the third pipe 302, the third pipette 303 is installed on the lower end surface of the third pipe 302, the fourth pipette 4 is located right in front of the main pipette 1, the fourth pipette 4 includes a fourth push rod 401, a fourth pipe 402 and a fourth pipette 403, the fourth push rod 401 is installed in the fourth pipe 402, the fourth pipette 403 is installed on the lower end surface of the fourth pipe 402, the fifth pipette 5 includes a fifth push rod 501, a fifth pipe 502 and a fifth pipette 503, the fifth push rod 501 is installed in the fifth pipe 502, the fifth pipette 503 is installed on the lower end surface of the fifth pipe 502, the main pipette 1, the second pipette 2, the third pipette 3, the fourth pipette 4 and the fifth pipette 5 are fixedly connected by two fixing buckles 7, and the lower ends of the main pipette 103, the second pipette 203, the third pipette 303, the fourth pipette 403 and the fifth pipette 503 are fixed together by a clamping buckle 6.

The volume in the main suction pipe 103, the second suction pipe 203, the third suction pipe 303, the fourth suction pipe 403 and the fifth suction pipe 503 is respectively equal to the minimum scale volume of the main pipe 102, the second pipe 202, the third pipe 302, the fourth pipe 402 and the fifth pipe 502, and the scale precision of the volume of the pipette is improved.

The main pipe 102, the second pipe 202, the third pipe 302, the fourth pipe 402, the fifth pipe 502 and the fixing buckles 7 are made of transparent materials, so that the volume of the pipette can be observed conveniently.

The main pipe 102, the second pipe 202, the third pipe 302, the fourth pipe 402 and the fifth pipe 502 are all formed with volume scales, which is convenient for observing the storage liquid volume of the pipette.

The volume of the main pipette 1 is larger than that of the second pipette 2, the volume of the second pipette 2 is larger than that of the third pipette 3, the volume of the third pipette 3 is larger than that of the fourth pipette 4, and the volume of the fourth pipette 4 is larger than that of the fifth pipette 6, so that the selection of minimum volume scales is increased, and the accuracy of liquid selection is improved.

When the liquid transfer operation is needed, the fixing ring buckle 6 and the liquid transfer tube body are grasped, the lower end of the device is placed in the liquid to be processed, and the main push rod 101 is moved upwards to absorb the liquid to perform the liquid transfer operation according to the requirements, such as when the large capacity is needed and the precision is not high; when the liquid-transfering operation of needs high accuracy, carry out the large capacity of main pipette 1 earlier and get liquid, reuse second pipette 2, third pipette 3, fourth pipette 4 and the cooperation of fifth pipette 5 is used and is reached the high accuracy and get liquid again, compare with current device, the beneficial effects of the utility model are that: the pipettes of four kinds of different specifications are used in a matched mode, so that large-capacity and small-capacity pipetting operation can be achieved, high-precision numerical value pipetting operation can also be achieved, liquid is not required to be taken from liquid for many times, operation steps are reduced, the working efficiency is improved, and the precision of the liquid is improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An adjustable pipette, characterized by comprising a main pipette (1), a second pipette (2), a third pipette (3), a fourth pipette (4), a fifth pipette (5), a snap ring (6) and a fixing ring buckle (7), wherein the main pipette (1) comprises a main push rod (101), a main pipe (102) and a main suction pipe (103), the main push rod (101) is installed in the main pipe (102), the main suction pipe (103) is installed on the lower end surface of the main pipe (102), the second pipette (2) is located on the left side of the main pipette (1), the second pipette (2) comprises a second push rod (201), a second pipe (202) and a second suction pipe (203), the second push rod (201) is installed in the second pipe (202), and the second suction pipe (203) is installed on the lower end surface of the second pipe (202), the third pipette (3) is located at the right side of the main pipette (1), the third pipette (3) comprises a third push rod (301), a third pipeline (302) and a third suction pipe (303), the third push rod (301) is installed in the third pipeline (302), the third suction pipe (303) is installed at the lower end face of the third pipeline (302), the fourth pipette (4) is located right in front of the main pipette (1), the fourth pipette (4) comprises a fourth push rod (401), a fourth pipeline (402) and a fourth suction pipe (403), the fourth push rod (401) is installed in the fourth pipeline (402), the fourth suction pipe (403) is installed at the lower end face of the fourth pipeline (402), the fifth pipette (5) comprises a fifth push rod (501), a fifth pipeline (502) and a fifth suction pipe (503), the fifth push rod (501) is installed in the fifth pipeline (502), the fifth suction pipe (503) is installed on the lower end face of the fifth pipeline (502), the main pipette (1), the second pipette (2), the third pipette (3), the fourth pipette (4) and the fifth pipette (5) are fixedly connected through two fixing buckles (7), and the lower ends of the main pipette (103), the second pipette (203), the third pipette (303), the fourth pipette (403) and the fifth pipette (503) are fixed together through the clamping ring (6).

2. The adjustable pipette of claim 1, wherein the volume within the main pipette (103), the second pipette (203), the third pipette (303), the fourth pipette (403), and the fifth pipette (503) is equal to the minimum calibrated volume of the main pipette (102), the second pipette (202), the third pipette (302), the fourth pipette (402), and the fifth pipette (502), respectively.

3. The adjustable pipette according to claim 1, wherein the main tube (102), the second tube (202), the third tube (302), the fourth tube (402), the fifth tube (502) and the retaining ring (7) are made of transparent materials.

4. The adjustable pipette of claim 1, wherein the main tube (102), the second tube (202), the third tube (302), the fourth tube (402), and the fifth tube (502) are each formed with a volume scale.

5. The adjustable pipette of claim 1, wherein the main pipette (1) capacity is greater than the second pipette (2) capacity, the second pipette (2) capacity is greater than the third pipette (3) capacity, the third pipette (3) capacity is greater than the fourth pipette (4) capacity, and the fourth pipette (4) capacity is greater than the fifth pipette (5) capacity.