Precision-adjustable pipetting operation device

Abstract

The utility model discloses a precision-adjustable pipetting operation device, and belongs to the technical field of pipetting auxiliary equipment.The precision-adjustable pipetting operation device comprises an adjustable operation mechanism, a mounting block is mounted in a connecting block, and the mounting block is fixedly connected with a mounting ring block through a connecting rod arranged on the side face; pipetals of different sizes and specifications are clamped in a mounting ring block, then a rotating rod is rotated, so that the rotating rod rotates at the top of a fixed base, the pipettes of different sizes and specifications can be selected by a user according to the requirements of the user to perform pipetting operation, a connecting block is pressed, so that the connecting block slides outside the rotating rod, and the pipetting operation is completed. The spring I arranged on the compression side surface of the connecting block can insert the mounting ring block into the test tube, and liquid in the test tube can be sucked into the pipettor by pulling the piston rod, so that the pipettor is prevented from being frequently replaced during pipetting operation, the operation process is simplified, the operation is simple and quick, and the use is convenient.

Description

Technical Field

[0001] This application relates to the technical field of pipetting assistance devices, and specifically to an adjustable-precision pipetting operation device. Background Art

[0002] A pipette is a measuring instrument used to accurately transfer a certain volume of solution. A pipette is a measuring-out instrument that is only used to measure the volume of the solution it discharges. It is a slender glass tube with a bulged part in the middle. Its lower end is in a pointed shape, and there is a calibration line engraved at the neck of the upper end, which is the mark of the accurate volume taken.

[0003] The Chinese utility model patent with the publication number CN213286909U discloses an adjustable pipette, which is characterized by including a main pipette tube, a second pipette tube, a third pipette tube, a fourth pipette tube, a fifth pipette tube, a snap ring, and a fixed ring buckle. The beneficial effects of the present utility model are as follows: By using four different specifications of pipette tubes in combination, pipetting operations with large volumes and small volumes can be achieved, and pipetting operations with high-precision values can also be achieved. There is no need to take the liquid multiple times, reducing the operation steps, improving the work efficiency and the accuracy of liquid taking. However, the above solution has the following defects: Multiple groups of pipette tubes of existing adjustable pipettes are fixed together. During the pipetting operation, multiple groups of pipette tubes need to be taken together and then selected according to the usage requirements. It is inconvenient to operate during the pipetting operation and is not easy to use.

[0004] Therefore, this application provides an adjustable-precision pipetting operation device to solve the above problems. Utility Model Content

[0005] This application provides an adjustable-precision pipetting operation device, aiming to solve the problem that multiple groups of pipette tubes of existing adjustable pipettes are fixed together. During the pipetting operation, multiple groups of pipette tubes need to be taken together and then selected according to the usage requirements. It is inconvenient to operate during the pipetting operation and is not easy to use as mentioned in the background art.

[0006] To achieve the above object, this application provides the following technical solution: An adjustable-precision pipetting operation device, the adjustable-precision pipetting operation device includes an adjustable operation mechanism;

[0007] Preferably, to solve the problem that in existing adjustable pipettes, multiple sets of pipette tubes are fixed together. During pipetting operations, multiple sets of pipette tubes need to be picked up together and then selected according to usage requirements, which is inconvenient to operate during the pipetting process. The adjustable operating mechanism includes a fixed base. A rotating rod is rotatably connected to the top of the fixed base. A connecting block is slidably connected to the outside of the rotating rod. Multiple mounting blocks are arranged inside the connecting block. One side of multiple mounting blocks away from the center of the connecting block is fixedly connected to a connecting rod. One end of the connecting rod away from the mounting block is fixedly connected to a mounting ring block. A pipette is arranged inside the mounting ring block. A piston rod is slidably connected to the inside of the pipette. The mounting blocks are installed inside the connecting block. The mounting blocks are fixedly connected to the mounting ring block through the connecting rods arranged on the sides. Pipettes of different sizes and specifications are clamped inside the mounting ring block. Then, the rotating rod is rotated so that the rotating rod rotates on the top of the fixed base. Different sizes and specifications of pipettes can be selected according to the user's needs for pipetting operations. By pulling the piston rod, the liquid in the test tube can be sucked into the pipette, avoiding frequent replacement of pipettes during pipetting operations, simplifying the operation process, being simple and fast to operate, and convenient to use.

[0008] Preferably, to solve the problem of convenient pipetting operation, a first spring is sleeved on the outside of the rotating rod. The first spring is fixedly connected between the bottom end of the connecting block and the bottom end of the rotating rod. By pressing the connecting block, the connecting block can slide on the outside of the rotating rod, so that the connecting block compresses the first spring arranged at the bottom, thus facilitating pipetting operations. Conversely, under the action of the rebounding force of the first spring, the connecting block is convenient to return to its original state and is convenient to use.

[0009] Preferably, to solve the problem that during pipetting operations, pipettes of different sizes and specifications are needed, so the pipettes need to be frequently installed and disassembled. The adjustable precision pipetting operation device further includes mounting grooves. The mounting grooves are arranged in a circular array. Multiple mounting grooves are adapted to the mounting blocks. The mounting blocks are inserted into the mounting grooves. By inserting the mounting blocks into the mounting grooves, the mounting blocks are fixed inside the mounting grooves, thus facilitating installation and disassembly according to usage requirements, with simple and fast operation and convenient use.

[0010] Preferably, to solve the problem of convenient installation and disassembly, a fixing rod is arranged inside the mounting block. A fixing groove adapted to the fixing rod is opened at the top of the mounting groove. The fixing rod is inserted into the fixing groove. By pressing the fixing rod, the fixing rod can be pressed into the inside of the mounting block. After inserting the mounting block into the mounting groove, the fixing rod is inserted into the fixing groove opened at the top of the mounting block, thus fixing the mounting block inside the mounting groove and facilitating operation.

[0011] Preferably, to solve the problem of the stability of the sliding plate during movement, a sliding plate is arranged inside the mounting block. One end of the fixing rod arranged inside the mounting block is fixedly connected to the sliding plate, and the sliding plate is slidably connected to the mounting block. The fixing rod pushes the sliding plate to slide inside the mounting block, and the stability of the movement of the fixing rod is improved by arranging the sliding plate, which is convenient to use.

[0012] Preferably, to solve the problem of the sliding plate being conveniently restored to its original state, a second spring is arranged inside the two mounting blocks. The second spring is fixedly connected between the mounting block and the bottom of the sliding plate. During the movement of the sliding plate, the second spring arranged on the side is compressed. By arranging the second spring, the sliding plate can be conveniently restored to its original state, which is convenient to use.

[0013] For this adjustable operating mechanism, the mounting block is installed inside the connecting block. The mounting block is fixedly connected to a mounting ring block through a connecting rod arranged on the side. Pipettes of different sizes and specifications are snap-fitted inside the mounting ring block. Then, the rotating rod is rotated so that the rotating rod rotates on the top of the fixed base. Different sizes and specifications of pipettes can be selected according to the needs of the user for pipetting operations. The connecting block is pressed so that the connecting block slides outside the rotating rod, and the connecting block compresses the first spring arranged on the side, and the mounting ring block can be inserted into the test tube. By pulling the piston rod, the liquid in the test tube can be sucked into the pipette, avoiding frequent replacement of the pipette during pipetting operations, simplifying the operation process, being simple and fast in operation, and convenient to use.

[0014] For this adjustable operating mechanism, by pressing the fixing rod, the fixing rod pushes the sliding plate to slide inside the mounting block, and the sliding plate compresses the second spring arranged on the side, and the mounting block can be inserted into the mounting groove. The fixing rod is affected by the rebounding force of the second spring, so that the fixing rod is inserted into the fixing groove, thereby fixing the mounting block inside the mounting groove, which is convenient for installation and disassembly according to the needs of the user and is convenient to use. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an adjustable-precision pipetting operation device;

[0016] Figure 2 It is a three-dimensional dynamic structural schematic diagram of an adjustable-precision pipetting operation device;

[0017] Figure 3 It is a front-view structural schematic diagram of the mounting block of an adjustable-precision pipetting operation device.

[0018] In the figure:

[0019] 1. Adjustable operating mechanism; 11. Fixed base; 12. Rotating rod; 13. Connecting block; 14. First spring; 15. Mounting block; 16. Connecting rod; 17. Mounting ring block; 18. Pipette; 19. Piston rod; 20. Mounting groove; 21. Fixed groove; 22. Fixed rod; 23. Sliding plate; 24. Second spring. Detailed implementation

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0021] Embodiment 1

[0022] This embodiment provides an adjustable-precision pipetting operation device. As Figures 1-3 shown, for the adjustable-precision pipetting operation device, the adjustable-precision pipetting operation device includes an adjustable operating mechanism 1. When in use, through the provided adjustable operating mechanism 1, different size specifications can be selected for pipetting operation according to the needs of the user, simplifying the operation process, being simple and fast in operation, and convenient to use.

[0023] Specifically, the adjustable operating mechanism 1 includes a fixed base 11. A rotating rod 12 is rotatably connected to the top of the fixed base 11. A connecting block 13 is slidably connected to the outside of the rotating rod 12. A plurality of mounting blocks 15 are arranged inside the connecting block 13. One side of the plurality of mounting blocks 15 away from the center of the connecting block 13 is fixedly connected to a connecting rod 16. One end of the connecting rod 16 away from the mounting block 15 is fixedly connected to a mounting ring block 17. A pipette 18 is arranged inside the mounting ring block 17. A piston rod 19 is slidably connected to the inside of the pipette 18;

[0024] When in use, the mounting block 15 is installed inside the connecting block 13. The mounting block 15 is fixedly connected to a mounting ring block 17 through a connecting rod 16 arranged on the side. Pipettes 18 of different size specifications are snap-fitted inside the mounting ring block 17. Then, the rotating rod 12 is rotated so that the rotating rod 12 rotates on the top of the fixed base 11. Different size specifications of pipettes 18 can be selected for pipetting operation according to the needs of the user. By pulling the piston rod 19, the liquid in the test tube can be sucked into the pipette 18, avoiding frequent replacement of the pipette 18 during pipetting operation, simplifying the operation process, being simple and fast in operation, and convenient to use.

[0025] Further, a first spring 14 is sleeved outside the rotating rod 12. The first spring 14 is fixedly connected between the bottom end of the connecting block 13 and the bottom end of the rotating rod 12. By pressing the connecting block 13, the connecting block 13 can slide outside the rotating rod 12, so that the connecting block 13 compresses the first spring 14 arranged at the bottom, facilitating the pipetting operation. Conversely, under the action of the rebounding force of the first spring 14, the connecting block 13 can easily return to its original state, making it convenient to use.

[0026] Embodiment 2

[0027] Different from Embodiment 1, when performing the pipetting operation, pipettes 18 of different sizes and specifications need to be used. Therefore, for the problem of frequent installation and disassembly of the pipettes 18, the adjustable-precision pipetting operation device further includes an installation groove 20. The installation grooves 20 are arranged in an annular array. Multiple groups of installation grooves 20 are adapted to the installation blocks 15. The installation blocks 15 are inserted into the installation grooves 20. By inserting the installation blocks 15 into the installation grooves 20, the installation blocks 15 are fixed inside the installation grooves 20, facilitating installation and disassembly according to the usage requirements. The operation is simple and fast, and it is convenient to use.

[0028] Specifically, a fixing rod 22 is arranged inside the installation block 15. A fixing groove 21 adapted to the fixing rod 22 is opened at the top of the installation groove 20. The fixing rod 22 is inserted into the fixing groove 21. By pressing the fixing rod 22, the fixing rod 22 can be pressed into the installation block 15. After inserting the installation block 15 into the installation groove 20, the fixing rod 22 is inserted into the fixing groove 21 opened at the top of the installation block 15, thereby fixing the installation block 15 inside the installation groove 20 for convenient operation.

[0029] Further, a sliding plate 23 is arranged inside the installation block 15. One end of the installation block 15 and the fixing rod 22 arranged inside the installation block 15 is fixedly connected with the sliding plate 23. The sliding plate 23 is slidably connected with the installation block 15. The fixing rod 22 pushes the sliding plate 23 to slide inside the installation block 15. By arranging the sliding plate 23, the stability of the movement of the fixing rod 22 is improved, making it convenient to use.

[0030] Furthermore, a second spring 24 is arranged inside two groups of installation blocks 15. The second spring 24 is fixedly connected between the installation block 15 and the bottom of the sliding plate 23. The sliding plate 23 compresses the second spring 24 arranged on the side during the movement. By arranging the second spring 24, the sliding plate 23 can easily return to its original state, making it convenient to use.

[0031] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution and its concept of the present application, makes equivalent substitutions or changes, and should be covered by the protection scope of the present application.

Claims

1. An adjustable precision pipetting operation device, characterized in that, The adjustable precision pipetting operation device includes an adjustable operation mechanism (1); The adjustable operation mechanism (1) includes a fixed base (11). A rotating rod (12) is rotatably connected to the top of the fixed base (11). A connecting block (13) is slidably connected to the outside of the rotating rod (12). A plurality of mounting blocks (15) are arranged inside the connecting block (13). One side of the plurality of mounting blocks (15) away from the center of the connecting block (13) is fixedly connected to a connecting rod (16). One end of the connecting rod (16) away from the mounting block (15) is fixedly connected to a mounting ring block (17). A pipette (18) is arranged inside the mounting ring block (17). A piston rod (19) is slidably connected to the inside of the pipette (18).

2. The adjustable-precision pipetting operation device according to claim 1, wherein: A first spring (14) is sleeved on the outside of the rotating rod (12). The first spring (14) is fixedly connected between the bottom end of the connecting block (13) and the bottom end of the rotating rod (12).

3. The adjustable-precision pipetting operation device according to claim 1, wherein: The adjustable precision pipetting operation device further includes mounting grooves (20). The mounting grooves (20) are arranged in a circular array. The plurality of mounting grooves (20) are adapted to the mounting blocks (15). The mounting blocks (15) are inserted into the mounting grooves (20).

4. The adjustable-precision pipetting operation device according to claim 3, wherein: A fixed rod (22) is arranged inside the mounting block (15). A fixed groove (21) adapted to the fixed rod (22) is opened at the top of the mounting groove (20). The fixed rod (22) is inserted into the fixed groove (21).

5. The adjustable-precision pipetting operation device according to claim 1, wherein: A sliding plate (23) is arranged inside the mounting block (15). The mounting block (15) and the end of the fixed rod (22) arranged inside the mounting block (15) are fixedly connected to the sliding plate (23). The sliding plate (23) is slidably connected to the mounting block (15).

6. The adjustable-precision pipetting operation device according to claim 5, wherein: A second spring (24) is arranged inside two of the mounting blocks (15). The second spring (24) is fixedly connected between the mounting block (15) and the bottom of the sliding plate (23).

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