Level gauge auxiliary device for reducing visual error of transfer pipette

Abstract

The invention relates to the field of transfer pipettes, in particular to a gradienter auxiliary device for reducing visual errors of a transfer pipet.The gradienter auxiliary device comprises a clamping sleeve part and a gradienter device, the clamping sleeve part is of a C-shaped structural design, the clamping sleeve part and the gradienter device are fixedly connected, a rubber pad is arranged on the inner side of the clamping sleeve part, and fin parts are arranged at the two ends of the clamping sleeve part; locking rods are mounted on the fin parts, anti-falling clamping plates are arranged on the two sides of the surface of the clamping sleeve part, and clamping bases are arranged at the upper ends of the anti-falling clamping plates; the clamping sleeve piece is clamped and mounted on the surface of the transfer pipette, the fin part is located on the outer side of the transfer pipette, so that the locking rod is rotated to enter the limiting clamping groove, the nut is attached to the surface of the fin part by rotating the nut, the stability of the gradienter device can be ensured, and when a worker reads scales, the staff can conveniently read the scales, and the working efficiency is improved. The levelness of the transfer pipette is confirmed through the gradienter device, so that the visual error during the use of the transfer pipette is reduced to a great extent, the experiment accuracy is ensured, and the operation speed is improved.

Description

Technical Field

[0001] The invention relates to the field of pipettes, and in particular to a level auxiliary device for reducing visual errors of pipettes. Background Art

[0002] A pipette is a measuring instrument used to accurately transfer a certain volume of solution. A straight glass tube with a scale is usually called a pipette. The volume of solution transferred by a pipette and a pipette can usually be accurate to 0.01mL. Generally, in pipette operation, the liquid is sucked and transferred through the ear bulb. In order to achieve a higher accuracy of the pipette volume, the personnel need to read the scale value as accurately as possible;

[0003] However, in daily teaching and life applications, pipettes are mostly clamped manually. The instability and differences in human operation can easily cause errors in readings, which are difficult to detect and affect the accuracy of the experiment.

[0004] Generally, in the daily use of pipettes, in order to ensure the accuracy of the read values, it is necessary to be very careful and serious in the operation. However, manual clamping can easily cause the pipette to be poorly level, resulting in difficulty in reading, affecting the accuracy of the experiment and the efficiency of operation. Summary of the invention

[0005] In order to overcome the problem that existing pipettes are mostly manually clamped, the instability and differences in human operation easily lead to errors in readings.

[0006] The technical solution of the present invention is: a level auxiliary device for reducing the visual error of a pipette, comprising a card kit and a level device, the card kit having a C-shaped structural design, the card kit and the level device being fixedly connected, a rubber pad being arranged on the inner side of the card kit, fin portions being arranged at both ends of the card kit, locking rods being installed on the fin portions, anti-dropout clamping plates being arranged on both sides of the surface of the card kit, and a snap-fit ​​seat being arranged at the upper end of the anti-dropout clamping plate.

[0007] Preferably, the card kit can be installed on the surface of the pipette by snapping, which is convenient for disassembly and can be used immediately after disassembly. The overall structure is compact, so that during the pipetting operation, the level of the pipette can be confirmed by the level device, ensuring the accuracy of the numerical reading, greatly improving work efficiency, and increasing the accuracy and precision of the experiment.

[0008] Preferably, the card set is made of polyethylene plastic, and the card set and the fin portion are integrally injection molded, and have good ductility.

[0009] Preferably, the level device is a circular level device, and a scale is provided on the surface of the level device to facilitate confirmation of levelness.

[0010] Preferably, the rubber pad is designed to be an arc-shaped structure, and the arc-shaped surface of the rubber pad is adapted to the surface inside the card set.

[0011] Preferably, surfaces of the two fin parts are respectively provided with a movable connection groove and a limit slot, and a movable block is rotatably installed in the movable connection groove.

[0012] Preferably, one end of the locking rod is fixedly connected to the movable block, the other end of the locking rod is movably connected to the limiting slot, and a nut is threadedly installed on the surface of the other end of the locking rod, and the outer diameter of the nut is larger than the inner diameter of the limiting slot.

[0013] Preferably, the anti-dropping card plate is designed in an L-shaped structure, the two anti-dropping card plates are symmetrically distributed, the lower end of the anti-dropping card plate and the surface of the card set are rotatably connected through a hinge seat, and the inner side of the anti-dropping card plate and the upper end of the card set are movably connected through a spring.

[0014] Preferably, one end of the engaging seat is rotatably connected to the anti-dropping clamping plate, and the other end of the engaging seat is provided with an arc-shaped fitting seat, and a silicone pad is provided on the surface of the arc-shaped fitting seat.

[0015] Beneficial effects of the present invention:

[0016] The level auxiliary device for reducing the visual error of the pipette has the card set snap-fitted and installed on the surface of the pipette, and the fin part is located on the outside of the pipette, so that the locking rod is rotated to make the locking rod enter the limiting slot, and the nut is rotated to make the surface of the nut and the fin part fit together to achieve limiting, and make the two fin parts come close together, the card set of the C-shaped structure fits tightly on the pipette, and the stability of the snap-fit ​​is increased. At the same time, the snap-fit ​​seats on both sides fit on the surface of the pipette, and under the elasticity of the spring, a clamp is formed above the card set to prevent the card set from sliding, thereby increasing stability and ensuring the stability of the level device. When reading the scale, the personnel confirm the horizontality of the pipette through the level device, which greatly reduces the visual error when the pipette is used, ensures the accuracy of the experiment, and improves the operation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the structure of a level auxiliary device card kit for reducing the visual error of a pipette according to the present invention;

[0018] Figure 2 Shown is a schematic diagram of the overall structure of a level auxiliary device for reducing the visual error of a pipette according to the present invention;

[0019] Figure 3 Shown is a schematic diagram of a locking rod structure of a level auxiliary device for reducing visual errors of a pipette according to the present invention;

[0020] Figure 4Shown is a schematic diagram of an anti-dropping card plate structure of a level auxiliary device for reducing visual errors of a pipette according to the present invention;

[0021] Figure 5 Shown is a schematic diagram of the liquid taking operation of a level auxiliary device for reducing the visual error of a pipette according to the present invention;

[0022] Figure 6 Shown is a schematic diagram of the liquid release operation of a level auxiliary device for reducing the visual error of a pipette according to the present invention.

[0023] Explanation of the reference numerals: 1. Card set; 2. Level device; 3. Rubber pad; 4. Fin portion; 41. Movable connection groove; 42. Limit card slot; 43. Movable block; 5. Locking rod; 51. Nut; 6. Anti-drop card plate; 7. Card seat. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 6 The present invention provides an embodiment: a level auxiliary device for reducing the visual error of a pipette, comprising a card kit 1 and a level device 2. The card kit 1 is designed in a C-shaped structure. The card kit 1 and the level device 2 are fixedly connected. A rubber pad 3 is arranged on the inner side of the card kit 1. Fin portions 4 are arranged at both ends of the card kit 1. Locking rods 5 are installed on the fin portions 4. Anti-slipping clamping plates 6 are arranged on both sides of the surface of the card kit 1. A snap-fit ​​seat 7 is arranged on the upper end of the anti-slipping clamping plate 6. The card kit 1 can be installed on the surface of the pipette by snapping, which is convenient for disassembly and can be used at any time. The overall structure is compact, so that during the pipetting operation, the horizontality of the pipette can be confirmed by the level device 2, which ensures the accuracy of the numerical reading, greatly improves the work efficiency, and increases the accuracy and precision of the experiment.

[0027] See also Figure 1 and Figure 2 The card set 1 is made of polyethylene plastic, and the card set 1 and the fin part 4 are integrally injection molded.

[0028] See also Figure 1 and Figure 2 The level device 2 is a circular level device, and a scale is provided on the surface of the level device 2.

[0029] See also Figure 1 and Figure 3 The rubber pad 3 is designed to be an arc-shaped structure, and the arc-shaped surface of the rubber pad 3 is adapted to the surface of the inner side of the card set 1.

[0030] In this embodiment, the card set 1 is made of plastic material, has good ductility, and a C-shaped structure, forming a card set structure, which is convenient for clamping on the outside of the pipette, and fits the pipette through the rubber pad 3 to increase the limiting effect, and the level device 2 is moved to the outside to facilitate personnel to check and confirm the horizontality of the pipette during the pipetting operation, thereby increasing the accuracy and precision of the experiment.

[0031] Embodiment 2

[0032] See also Figure 1 and Figure 3 The surfaces of the two fin parts 4 are respectively provided with a movable connection groove 41 and a limit groove 42 , and a movable block 43 is rotatably installed in the movable connection groove 41 .

[0033] See also Figure 3 and Figure 4 One end of the locking rod 5 is fixedly connected to the movable block 43, and the other end of the locking rod 5 is movably connected to the limiting slot 42, and a nut 51 is threadedly installed on the surface of the other end of the locking rod 5, and the outer diameter of the nut 51 is larger than the inner diameter of the limiting slot 42.

[0034] In this embodiment, when the card set 1 is engaged to the outside of the pipette, the locking rod 5 can be rotated so that the locking rod 5 enters the limiting slot 42, and then the nut 51 is rotated so that the nut 51 and the fin part 4 fit together. By adjusting the position of the nut 51, the two fin parts 4 are brought close to limit the card set 1 and increase the stability of the installation.

[0035] Embodiment 3

[0036] See also Figure 1 and Figure 3 , Figure 4 The anti-dropping card plate 6 is designed in an L-shaped structure, and the two anti-dropping card plates 6 are symmetrically distributed. The lower end of the anti-dropping card plate 6 and the surface of the card set 1 are rotatably connected through a hinge seat, and the inner side of the anti-dropping card plate 6 and the upper end of the card set 1 are movably connected through a spring.

[0037] See also Figure 3 and Figure 4 One end of the engaging seat 7 is rotatably connected to the anti-dropping clamping plate 6, and the other end of the engaging seat 7 is provided with an arc-shaped fitting seat, and a silicone pad is provided on the surface of the arc-shaped fitting seat.

[0038] In this embodiment, the movable connection of the anti-dropping clamping plates 6 on both sides can be opened, and under the elastic operation of the spring, the snap-fit ​​seats 7 on both sides are clamped on the surface of the pipette, and the silicone pad has a certain adsorption property, thereby positioning the card set 1 to prevent it from dropping out, avoiding the card set 1 from sliding, and ensuring the stability of the level device 2.

[0039] During operation, the card kit 1 is made of plastic and has good ductility, so that the card kit 1 can be opened through the fin part 4 and the card kit 1 can be engaged on the pipette, and the level device 2 is moved to the outside for convenience of personnel to check and confirm the horizontality of the pipette during the pipette operation, thereby increasing the accuracy and precision of the experiment. At the same time, when the card kit 1 is engaged to the outside of the pipette, the locking rod 5 can be rotated to make the locking rod 5 enter the limiting slot 42, and then the nut 51 can be rotated to make the nut 51 and the fin part 4 fit together, and by adjusting the position of the nut 51, the two fin parts 4 are brought close to limit the card kit 1, increase the stability of the installation, and open the anti-slip clamping plates 6 on both sides. Under the elastic operation of the spring, the engaging seats 7 on both sides are clamped on the surface of the pipette, and the silicone pad has a certain adsorption capacity, thereby positioning the card kit 1, achieving anti-slip, avoiding the card kit 1 from sliding, and ensuring the stability of the level device 2.

[0040] Through the above steps, the card kit 1 can be installed on the surface of the pipette by snapping, which is convenient for disassembly and can be used immediately after disassembly, and the overall structure is compact. Therefore, during the pipetting operation, the level of the pipette can be confirmed by the level device 2, thereby ensuring the accuracy of the numerical reading, greatly improving work efficiency, and increasing the accuracy and precision of the experiment, so as to solve the problem that the existing pipettes are mostly used for manual clamping, and their instability and differences in human operation can easily cause errors in the readings.

Claims

1. A level auxiliary device for reducing visual error of a pipette, comprising a card set (1), characterized in that: The invention comprises a level device (2), a card set (1) having a C-shaped structure, the card set (1) and the level device (2) being fixedly connected, a rubber pad (3) being arranged on the inner side of the card set (1), fin parts (4) being arranged at both ends of the card set (1), a locking rod (5) being installed on the fin part (4), anti-dropping card plates (6) being arranged on both sides of the surface of the card set (1), and a snap-fit ​​seat (7) being arranged at the upper end of the anti-dropping card plate (6).

2. A level auxiliary device for reducing visual error of a pipette according to claim 1, characterized in that: The card set (1) is made of polyethylene plastic material, and the card set (1) and the fin part (4) are integrally injection molded.

3. A level auxiliary device for reducing visual error of a pipette according to claim 1, characterized in that: The level device (2) is a circular level device, and a scale is arranged on the surface of the level device (2).

4. A level auxiliary device for reducing visual error of a pipette according to claim 1, characterized in that: The rubber pad (3) is designed to be an arc-shaped structure, and the arc-shaped surface of the rubber pad (3) is adapted to the inner surface of the card set (1).

5. A level auxiliary device for reducing pipette visual error according to claim 1, characterized in that: The surfaces of the two fin parts (4) are respectively provided with a movable connection groove (41) and a limit clamping groove (42), and a movable block (43) is rotatably installed in the movable connection groove (41).

6. A level auxiliary device for reducing visual error of a pipette according to claim 5, characterized in that: One end of the locking rod (5) is fixedly connected to the movable block (43), and the other end of the locking rod (5) is movably connected to the limiting slot (42). A nut (51) is threadedly mounted on the surface of the other end of the locking rod (5), and the outer diameter of the nut (51) is larger than the inner diameter of the limiting slot (42).

7. A level auxiliary device for reducing visual error of a pipette according to claim 1, characterized in that: The anti-drop-off card plate (6) is designed in an L-shaped structure, and the two anti-drop-off card plates (6) are symmetrically distributed. The lower end of the anti-drop-off card plate (6) and the surface of the card set (1) are rotatably connected via a hinge seat, and the inner side of the anti-drop-off card plate (6) and the upper end of the card set (1) are movably connected via a spring.

8. A level auxiliary device for reducing visual error of a pipette according to claim 1, characterized in that: One end of the engaging seat (7) is rotatably connected to the anti-dropping clamping plate (6), and the other end of the engaging seat (7) is provided with an arc-shaped fitting seat, and a silicone pad is provided on the surface of the arc-shaped fitting seat.

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