A portable electric pipette

Abstract

This utility model discloses a portable electric pipette, relating to the field of electric pipette technology. It includes a pipette body with rotating shafts fixedly connected to its outer circumference. Each of the two rotating shafts has a vertical plate at one end. A base plate for protecting the bottom of the pipette body is fixedly connected to the bottom of each vertical plate. A pipetting switch is located at the top of the pipette body. A locking component for rotation positioning is located on one side of one vertical plate; a limiting component for blocking rotation is located on one side of the other vertical plate; and a lifting component is located on one side of each vertical plate. This utility model combines portability and bottom protection through a rotating storage structure to extend its service life. Its multi-structural design ensures accurate and stable operation, improving pipetting reliability. Furthermore, its adjustable length and flexible lifting mechanism allow it to be used in various scenarios.

Description

Technical Field

[0001] This utility model relates to the field of electric pipette technology, and in particular to a portable electric pipette. Background Technology

[0002] An electric pipette, also called a pipette gun, is a measuring tool used to transfer liquid from one container to another within a certain volume range. It is widely used in fields such as biology and chemistry.

[0003] Currently, existing electric pipettes are of fixed length. However, when sampling from deeper reagent bottles, the pipettes are often too short to retrieve the liquid. Furthermore, increasing the length of the electric pipette would make it inconvenient to carry in daily use. Therefore, there is an urgent need for a portable electric pipette to solve these problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a portable electric pipette. Its advantages include: a rotating storage structure that balances portability and bottom protection to extend service life; a multi-layered structural design that ensures precise and stable operation to improve pipetting reliability; and adjustable length and flexible height for adaptability to various usage scenarios.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A portable electric pipette includes a pipette body, a rotating shaft fixedly connected to the outer circumference of the pipette body, a vertical plate provided at one end of each of the two rotating shafts, a bottom plate fixedly connected to the bottom of the vertical plate for protecting the bottom of the pipette body, and a pipetting switch provided at the top of the pipette body.

[0007] A locking assembly for rotation positioning is provided on one side of a vertical plate;

[0008] One side of the other vertical plate is provided with a limiting component to prevent rotation;

[0009] A lifting assembly is installed on one side of the vertical plate.

[0010] The above technical solutions can meet the needs of pipetting operations in different scenarios. The locking component can fix the rotation position of the pipette body, while the limiting component can prevent it from rotating excessively. The overall structure takes into account both portability and practicality.

[0011] Preferably, one end of one rotating shaft is rotatably connected to the vertical plate, and one end of the other rotating shaft is fixedly connected to a screw, which is rotatably connected to another vertical plate.

[0012] The above technical solutions provide a foundation for the subsequent locking components, and the screw can be used to lock the rotation position of the shaft, ensuring that the pipette body can stably maintain the required angle during use and avoiding pipetting errors caused by unstable connection.

[0013] Preferably, the locking assembly includes a fixing nut threadedly connected to the outer circumference of the screw, a limiting disc fixedly connected to one end of the screw to prevent the fixing nut from being screwed out, and a limiting ring plate fixedly connected to the outer circumference of the rotating shaft to ensure stable rotation of the vertical plate.

[0014] The above technical solutions ensure that the vertical plate remains stable during rotation, reducing the impact of shaking on pipetting accuracy.

[0015] Preferably, the lifting assembly includes a connecting plate fixedly connected to the outer wall of one side of the vertical plate, a threaded screw rotatably connected to one side of the connecting plate, a threaded sleeve threadedly connected to the outer circumference of the threaded screw, and a pressure plate fixedly connected to the outer circumference of the threaded sleeve.

[0016] Through the above technical solution: when the pressure plate rises, the pipetting switch on the top of the pipette body can be pressed to trigger the pipetting action. By controlling the rotation amplitude of the screw, the pressing force of the pressure plate and the triggering degree of the pipetting switch can be precisely adjusted to ensure the accuracy of the pipetting volume.

[0017] Preferably, a guide post is fixedly connected to the top outer wall of another connecting plate, a guide cylinder is sleeved on the circumferential outer wall of the guide post, an arc-shaped post is fixedly connected to the circumferential outer wall of the guide cylinder, and the other end of the arc-shaped post is fixedly connected to the threaded sleeve.

[0018] The above technical solution uses an arc-shaped column to pull the threaded sleeve, which prevents the threaded sleeve from rotating or shifting during movement, ensuring that the pressure plate always maintains a stable lifting trajectory. This further improves the accuracy of pressing the pipette switch and avoids pipetting errors caused by component misalignment.

[0019] Preferably, the limiting component includes a connecting rod fixedly connected to the outer wall of the circumference of the rotating shaft, and a baffle for limiting the rotation of the connecting rod is fixedly connected to one side of the outer wall of the vertical plate. The number of the baffles is two, and the two baffles are symmetrically distributed.

[0020] Through the above technical solution, two symmetrically distributed baffles can respectively limit the position of the pipette body when it is unfolded and when it is stored, ensuring that it can fit tightly with the base plate when stored and maintain a suitable working angle when unfolded.

[0021] Preferably, a handle is fixedly connected to one side of the outer wall of the base plate, and a rotating block is fixedly connected to one end of the threaded rod that passes through one side of the base plate.

[0022] Through the above technical solutions: operators can easily transfer the equipment via the handle, improving portability; the rotating block increases the gripping area at the end of the threaded screw, making it easier for operators to rotate the threaded screw to control the lifting components.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. A portable electric pipette, which achieves portability through a rotatable storage structure. When not in use, the pipette body can be rotated and stored so that the base plate is completely in contact with the bottom of the pipette body. With the handle on one side of the base plate, it is convenient for operators to carry and transfer. At the same time, the base plate can effectively protect the bottom of the pipette body, avoiding damage to the bottom due to collision and friction during transportation or storage. This solves the contradiction of traditional fixed-length pipettes, which are "inconvenient to carry if too long and have limited functionality if too short", and extends the overall service life of the device while ensuring portability.

[0025] 2. A portable electric pipette, which ensures operational accuracy through multiple structural designs. On the one hand, the limiting ring plate on the outer wall of the rotating shaft ensures stability and prevents wobbling when the vertical plate rotates. The fixing nut in the locking assembly can accurately lock the position of the rotating shaft, and the limiting plate prevents the nut from falling off, thus avoiding displacement of the device during pipetting. On the other hand, the symmetrical baffles of the limiting assembly can limit the unfolding angle of the pipette body, ensuring that it is in a vertical state after unfolding. The cooperation between the guide column and the guide cylinder in the lifting assembly can prevent the threaded sleeve from deviating, ensuring that the pressure plate applies pressure to the pipetting switch smoothly, reducing human operation error, and improving the reliability and accuracy of the pipetting process.

[0026] 3. A portable electric pipette, whose overall length can be adjusted by rotating the unfolding structure to meet the sampling needs of deeper reagent bottles; the cooperation between the threaded screw and the threaded sleeve in the lifting assembly can drive the pressure plate to flexibly lift and lower to start the pipetting switch, adapting to different heights and different types of sampling scenarios, and can complete a variety of pipetting operations without changing the equipment, solving the problem of difficult liquid retrieval in special scenarios of traditional pipettes, improving the functional adaptability and usage flexibility of the equipment, and suitable for diverse experimental needs in biological, chemical and other fields. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a portable electric pipette after it has been stored, as proposed in this utility model.

[0028] Figure 2 This is a schematic diagram of the overall left-side unfolded structure of a portable electric pipette proposed in this utility model;

[0029] Figure 3 This utility model proposes a portable electric pipette. Figure 2 Enlarged structural diagram at point A;

[0030] Figure 4 This is a schematic diagram of the overall right side structure of a portable electric pipette proposed in this utility model.

[0031] In the diagram: 1. Pipette body; 2. Vertical plate; 3. Base plate; 4. Threaded screw; 5. Pipette switch; 6. Threaded sleeve; 7. Guide tube; 8. Pressure plate; 9. Screw; 10. Limiting plate; 11. Fixing nut; 12. Rotating shaft; 13. Connecting plate; 14. Guide column; 15. Rotating block; 16. Handle; 17. Baffle; 18. Connecting rod; 19. Limiting ring plate. Detailed Implementation

[0032] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0033] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0034] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0035] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0036] Reference Figures 1-4 A portable electric pipette includes a pipette body 1, a rotating shaft 12 fixedly connected to the outer circumference of the pipette body 1, a vertical plate 2 provided at one end of each of the two rotating shafts 12, a bottom plate 3 for protecting the bottom of the pipette body 1 fixedly connected to the bottom of the vertical plate 2, and a pipetting switch 5 provided at the top of the pipette body 1.

[0037] A locking assembly for rotation positioning is provided on one side of a vertical plate 2;

[0038] One side of the other vertical plate 2 is provided with a limiting component to prevent rotation;

[0039] A lifting component is provided on one side of the vertical plate 2 to meet the needs of pipetting operations in different scenarios. The locking component can fix the rotation position of the pipette body 1, while the limiting component can prevent it from rotating excessively. The overall structure takes into account both portability and practicality.

[0040] Furthermore, one end of one rotating shaft 12 is rotatably connected to the vertical plate 2, and one end of the other rotating shaft 12 is fixedly connected to a screw 9. The screw 9 is rotatably connected to the other vertical plate 2, so that the two rotating shafts 12 are connected to the vertical plate 2 in different ways. One end is directly rotatably connected to ensure the basic rotation function, and the other end is rotatably connected through the screw 9 to provide an installation base for the subsequent locking assembly. The screw 9 can be used to lock the rotation position of the rotating shaft 12, ensuring that the pipette body 1 can stably maintain the required angle during use and avoid pipetting errors caused by unstable connection.

[0041] Furthermore, the locking assembly includes a fixing nut 11 threaded onto the outer circumference of the screw 9, a limiting plate 10 fixedly connected to one end of the screw 9 to prevent the fixing nut 11 from being screwed out, and a limiting ring plate 19 fixedly connected to the outer circumference of the rotating shaft 12 to ensure the stable rotation of the vertical plate 2. When the pipette body 1 is adjusted to a suitable angle, tightening the fixing nut 11 on the screw 9 can fix the relative position of the screw 9 and the vertical plate 2, thereby locking the rotating shaft 12 and achieving the positioning of the pipette body 1. At the same time, the limiting plate 10 can prevent the fixing nut 11 from falling off from one end of the screw 9, avoiding component failure, while the limiting ring plate 19 can restrict the axial movement of the vertical plate 2 on the rotating shaft 12, ensuring that the vertical plate 2 is always in a stable state when rotating, reducing the impact of shaking on pipetting accuracy.

[0042] Furthermore, the lifting assembly includes a connecting plate 13 fixedly connected to the outer wall of one side of the vertical plate 2. A threaded screw 4 is rotatably connected to one side of the connecting plate 13. A threaded sleeve 6 is threadedly connected to the outer circumference of the threaded screw 4. A pressure plate 8 is fixedly connected to the outer circumference of the threaded sleeve 6. The connecting plate 13 provides stable installation support for the threaded screw 4. When the threaded screw 4 is rotated, the threaded sleeve 6 on its outer circumference will move along the screw axis, thereby driving the pressure plate 8 to rise and fall. When the pressure plate 8 rises, it can press the pipetting switch 5 on the top of the pipette body 1 to trigger the pipetting action. By controlling the rotation amplitude of the threaded screw 4, the pressing force of the pressure plate 8 and the triggering degree of the pipetting switch 5 can be precisely adjusted to ensure the accuracy of the pipetting volume.

[0043] Furthermore, a guide post 14 is fixedly connected to the top outer wall of another connecting plate 13. A guide cylinder 7 is sleeved on the outer circumference of the guide post 14. An arc-shaped column is fixedly connected to the outer circumference of the guide cylinder 7. The other end of the arc-shaped column is fixedly connected to the threaded sleeve 6. The cooperation between the guide post 14 and the guide cylinder 7 forms a guiding structure. When the threaded sleeve 6 moves with the threaded screw 4, the guide cylinder 7 will slide synchronously along the guide post 14. Through the traction of the arc-shaped column on the threaded sleeve 6, the threaded sleeve 6 can be prevented from rotating or deviating during the movement, ensuring that the pressure plate 8 always maintains a stable lifting trajectory, further improving the accuracy of pressing the pipetting switch 5 and avoiding pipetting operation errors caused by component deviation.

[0044] Furthermore, the limiting component includes a connecting rod 18 fixedly connected to the outer wall of the circumference of the rotating shaft 12. A baffle 17 for limiting the rotation of the connecting rod 18 is fixedly connected to the outer wall of one side of the vertical plate 2. There are two baffles 17, which are symmetrically distributed. When the rotating shaft 12 drives the pipette body 1 to rotate, the connecting rod 18 on the rotating shaft 12 will rotate synchronously with it. When the connecting rod 18 rotates to contact one of the baffles 17, the baffle 17 will block the connecting rod 18 from continuing to rotate, thereby limiting the maximum rotation angle of the pipette body 1 and preventing it from rotating excessively and damaging the components. The two symmetrically distributed baffles 17 can respectively limit the position of the pipette body 1 when it is unfolded for use and when it is stored, ensuring that it can fit tightly with the base plate 3 when stored and maintain a suitable working angle when unfolded.

[0045] Furthermore, a handle 16 is fixedly connected to one side of the outer wall of the base plate 3, and a rotating block 15 is fixedly connected to one end of the threaded rod 4 that passes through one side of the base plate 3. The handle 16 provides a convenient gripping and carrying structure for the pipette, and the operator can easily transfer the equipment through the handle 16, improving portability. The rotating block 15 increases the gripping area at the end of the threaded rod 4, making it convenient for the operator to rotate the threaded rod 4 to control the lifting component.

[0046] Working principle: When this portable electric pipette is in operation, it first connects to the vertical plate 2 via the rotating shaft 12 on the outer circumference of the pipette body 1. One rotating shaft 12 is directly rotatably connected to the vertical plate 2, while the other rotating shaft 12 is fixedly connected to the screw 9 and then rotates with the vertical plate 2. During rotation, the limiting ring plate 19 on the outer circumference of the rotating shaft 12 ensures the stable rotation of the vertical plate 2, effectively preventing shaking from affecting operational accuracy and improving stability. When the pipette body 1 rotates to the rated angle and is fixed, the fixing nut 11 on the outer circumference of the screw 9 is tightened with the help of the locking assembly. The position of the rotating shaft 12 can be locked, and the limiting plate 10 at one end of the screw 9 can prevent the fixing nut 11 from being screwed out, ensuring a reliable locking state. At the same time, the connecting rod 18 on the outer circumference of the rotating shaft 12 in the limiting assembly will rotate between two symmetrical baffles 17 on one side of the outer wall of the vertical plate 2, which can effectively ensure that the vertical plate 2 can be located on the same vertical plane as the entire pipette body 1 after unfolding, ensuring that the entire pipette is at its maximum height after unfolding. Meanwhile, the other baffle 17 can ensure that the bottom plate 3 can be completely attached to the bottom of the pipette body 1 when the pipette body 1 is not in use and is stored.

[0047] Furthermore, during the pipetting operation, the entire pipette can be inserted into the sampling area, and by rotating the threaded screw 4 through the rotating block 15 at one end of the base plate 3, the threaded screw 4 can be rotated on the connecting plate 13 on one side of the vertical plate 2, thereby causing the threaded sleeve 6 on the outer circumference of the threaded screw 4 to move up and down. At this time, the guide cylinder 7 on the guide post 14 on the top outer wall of the other connecting plate 13 will move synchronously with the threaded sleeve 6 through the arc-shaped post, playing a precise guiding role, preventing the threaded sleeve 6 from deviating, and ensuring that the pressure plate 8 can smoothly lift and lower to apply pressure to start the pipetting switch 5, ensuring operational accuracy and meeting the pipetting needs in different scenarios. After use, the device can be easily carried through the handle 16 on the outer wall of one side of the base plate 3, improving portability. The base plate 3 can also effectively protect the bottom of the pipette body 1, avoiding damage to the bottom during transportation or storage, and extending the service life of the device. During the overall operation, all components work together to balance the convenience and accuracy of operation, and achieve effective protection of the device, fully meeting the needs of portable use.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable electric pipette comprising a pipette body (1), characterized in that, The pipette body (1) has a rotating shaft (12) fixedly connected to its outer circumference. One end of each of the two rotating shafts (12) is provided with a vertical plate (2). The bottom end of the vertical plate (2) is fixedly connected with a bottom plate (3) for protecting the bottom of the pipette body (1). The top of the pipette body (1) is provided with a pipetting switch (5). A locking assembly for rotation positioning is provided on one side of a vertical plate (2); One side of the other vertical plate (2) is provided with a limiting component to prevent rotation; A lifting assembly is provided on one side of the vertical plate (2).

2. A portable electric pipette according to claim 1, characterized in that One end of a rotating shaft (12) is rotatably connected to the vertical plate (2), and one end of another rotating shaft (12) is fixedly connected to a screw (9), which is rotatably connected to the other vertical plate (2).

3. A portable electric pipette according to claim 2, characterized in that The locking assembly includes a fixing nut (11) threaded to the outer circumference of the screw (9), a limiting disc (10) fixedly connected to one end of the screw (9) to prevent the fixing nut (11) from being screwed out, and a limiting ring plate (19) fixedly connected to the outer circumference of the rotating shaft (12) to ensure the stable rotation of the vertical plate (2).

4. A portable electric pipette according to claim 3, characterized in that The lifting assembly includes a connecting plate (13) fixedly connected to the outer wall of one side of the vertical plate (2), a threaded screw (4) rotatably connected to one side of the connecting plate (13), a threaded sleeve (6) threadedly connected to the outer circumference of the threaded screw (4), and a pressure plate (8) fixedly connected to the outer circumference of the threaded sleeve (6).

5. A portable electric pipette according to claim 4, characterized in that Another connecting plate (13) has a guide post (14) fixedly connected to the top outer wall. The guide post (14) has a guide cylinder (7) sleeved on its circumferential outer wall. The guide cylinder (7) has an arc-shaped column fixedly connected to its circumferential outer wall. The other end of the arc-shaped column is fixedly connected to the threaded sleeve (6).

6. A portable electric pipette according to claim 5, characterized in that The limiting component includes a connecting rod (18) fixedly connected to the outer wall of the circumference of the rotating shaft (12). A baffle (17) for limiting the rotation of the connecting rod (18) is fixedly connected to one side of the outer wall of the vertical plate (2). There are two baffles (17), and the two baffles (17) are symmetrically distributed.

7. A portable electric pipette according to claim 6, characterized in that A handle (16) is fixedly connected to one side of the outer wall of the base plate (3), and a rotating block (15) is fixedly connected to one end of the threaded rod (4) that passes through one side of the base plate (3).

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