Biological reagent pipetting device

Abstract

The utility model discloses a biological reagent pipetting device, which relates to the technical field of biological reagents and comprises a pipetting device body, a moving component is arranged in an inner cavity of the pipetting device body, and threaded rods are jointly rotatably connected to the front sides of the bottom and the top of the inner cavity of the pipetting device body. A first motor is installed on the front side of the bottom of an inner cavity of the pipetting device body, two belt wheels are arranged on the surface of an output shaft of the first motor and the surface of a threaded rod in a sleeving mode correspondingly, and the two belt wheels are in transmission connection through a belt. Therefore, the inconvenience that a user needs to stretch into an arm or bend down to look for and take out the reagent bottle is avoided. The operation difficulty and the fatigue feeling of a user are remarkably reduced, the overall working efficiency is improved, the needed biological reagent bottle is automatically moved to the position in front of the user through the moving assembly, and the user does not need to go deep into the equipment manually.

Description

TECHNICAL FIELD

[0001] The utility model belongs to biological reagent technical field especially relates to a biological reagent pipetting device. BACKGROUND

[0002] In tumor research, a pipetting workstation (also known as an automated liquid handling workstation or automated pipetting system) is a highly specialized laboratory instrument used to perform various liquid handling tasks. These tasks include, but are not limited to, gradient dilution, pipetting, liquid merging, sample dispensing, solution preparation, etc. In oncology research, such equipment is typically used to process and analyze biological samples, such as nucleic acids and proteins in blood, tissue extracts, or cell cultures.

[0003] The existing biological reagent pipetting device faces some challenges when the user takes out different types of biological reagents, especially when the internal depth of the device is inconsistent. The user needs to spend extra time and effort to find and take out the reagent bottle located in the deeper place. This design not only reduces work efficiency, but also increases the difficulty of operation, especially in long-term experiments, which can easily lead to fatigue. The process of manually finding and taking out different types of reagent bottles each time is time-consuming, especially for experimental procedures that require frequent changes of different reagents. This inefficient operation method greatly slows down the overall experimental progress, which is inconvenient to use. SUMMARY

[0004] The utility model aims at providing a biological reagent pipetting device to solve the inconvenience of taking out reagent bottles from the deep place in the prior art, especially when the internal depth of the device is inconsistent. The user needs to stretch in or bend down to find and take out the reagent bottle, which increases the difficulty of operation and fatigue, reduces the work efficiency, and is inconvenient to use.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a biological reagent pipetting device, comprising a pipetting device body, a moving assembly is arranged in the inner cavity of the pipetting device body, a threaded rod is rotatably connected to the front side of the bottom and top of the inner cavity of the pipetting device body, a first motor is installed on the front side of the bottom of the inner cavity of the pipetting device body, two belt pulleys are respectively sleeved on the output shaft of the first motor and the surface of the threaded rod, and the two belt pulleys are connected by a belt, and the surface of the threaded rod is threadedly connected with two first moving plates and second moving plates arranged symmetrically above and below.

[0006] Preferably, the top of the first moving plate is fixedly connected with a first top plate, the front and rear sides of the inner cavity bottom of the pipette device body are connected with guide rods, and one side of the first moving plate and the second moving plate is movably connected with the surface of the guide rod.

[0007] Preferably, the top of the first moving plate and the second moving plate is connected with a first placing box and a second placing box respectively, the bottom of the first placing box and the bottom of the inner cavity of the pipette device body are fixedly connected with a fixed plate respectively, and the second placing box is located on the front side of the first placing box.

[0008] Preferably, one side of the fixed plate is provided with a plurality of running plates, and the plurality of running plates are rotatably connected with each other through pivots.

[0009] Preferably, the bottom of the first placing box is provided with a second top plate, the left and right sides of the second top plate are fixedly connected with the surface of the first top plate, the bottom of the inner cavity of the pipette device body and the second top plate are fixedly connected with a limiting frame respectively, and the surface of the limiting frame is slidably connected with one side of the running plate.

[0010] Preferably, the inner cavities of the first placing box and the second placing box are respectively provided with a second motor, the inner cavities of the first placing box and the second placing box are rotatably connected with rotating rods respectively, and the output shafts of the second motors and the top ends of the rotating rods are fixedly connected with sprockets respectively.

[0011] Preferably, the surfaces of the plurality of sprockets are drivingly connected with chains, and the surface of the chain is connected with a placing block.

[0012] Preferably, the left and right sides of the inner cavity of the pipette device body are slidably connected with first electric guide rails, the bottom of the first electric guide rail is provided with a displacement sensor, the surface of the first electric guide rail is connected with the surface of the first placing box, the surface of the first electric guide rail is fixedly connected with an L-shaped plate, the side, away from the first electric guide rail, of the L-shaped plate is fixedly connected with the surface of the first top plate, the front and rear sides of the top of the inner cavity of the pipette device body are provided with second electric guide rails, the surface of the second electric guide rail is movably connected with a third electric guide rail, the surface of the third electric guide rail is movably connected with a pipette pump, and the output end of the pipette pump is provided with a pipette head.

[0013] Preferably, the front side of the inner cavity of the pipette device body is fixedly connected with a welding plate, and the inner side of the welding plate is connected with the surface of the first motor.

[0014] Preferably, the left side of the pipette device body is provided with a power distribution cabinet, and the left side of the pipette device body is provided with a louver.

[0015] The biological reagent pipette device has the following advantages:

[0016] The biological reagent pipetting device is convenient to take out the biological reagent bottle placed at different depths, so that the user does not need to stretch the arm or bend the body to find and take out the reagent bottle, the operation difficulty and the fatigue of the user are significantly reduced, the overall work efficiency is improved, the biological reagent bottle required is automatically moved to the front of the user by the moving assembly, the user does not need to manually enter the inside of the equipment, all the reagent bottles can be easily moved to the position convenient to take, the action of frequently bending the body and stretching the hand is avoided, the physical fatigue and discomfort of the user are reduced, the time for finding and taking out the reagent bottle each time is saved, especially in the experiment of frequently changing the reagent, the overall experiment progress is greatly improved, and the biological reagent pipetting device is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and other related drawings can be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0018] Figure 1 It is an overall structure of the present application and a three-dimensional schematic diagram.

[0019] Figure 2 It is an overall structure of the present application and a front side cross-sectional schematic diagram.

[0020] Figure 3 It is a moving assembly structure of the present application and a three-dimensional schematic diagram of the overall state.

[0021] Figure 4 It is a second placing box structure of the present application and a side view cross-sectional three-dimensional schematic diagram.

[0022] Figure 5 It is a first placing box structure of the present application and a three-dimensional schematic diagram of the split state.

[0023] Figure 6 It is a running plate structure of the present application and a three-dimensional schematic diagram.

[0024] Figure 7 It is a second moving plate structure of the present application and a three-dimensional schematic diagram. Figure 6 It is an enlarged structure schematic diagram of the middle A of the present application.

[0025] Figure 8 It is a second moving plate structure of the present application and a three-dimensional schematic diagram.

[0026] Marked description: 1, pipette device body; 2, moving assembly; 21, threaded rod; 22, first motor; 23, belt pulley; 24, first moving plate; 25, second moving plate; 26, guide rod; 27, first placing box; 28, fixed plate; 29, limiting frame; 210, running plate; 212, second placing box; 213, second motor; 214, rotating rod; 215, chain wheel; 216, chain; 217, placing block; 218, first electric guide rail; 219, first top plate; 220, second top plate; 221, L-shaped plate; 222, displacement sensor; 223, second electric guide rail; 224, pipette pump; 225, pipette head; 226, third electric guide rail. DETAILED DESCRIPTION

[0027] Hereinafter, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0028] In the description of the embodiments of the present application, it is understood that the terms "length", "vertical", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0029] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0030] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0031] The disclosure below provides many different embodiments or examples for implementing various aspects of the present embodiments. In the interest of simplifying the disclosure, the following description will be directed with specific examples pertaining to particular embodiments. It is to be understood, however, that they are just examples and are not intended to limit the present embodiments. Furthermore, the present embodiments can repeat reference numerals and / or letters in various examples and / or throughout the specification. This repetition is for the purpose of simplicity and clarity and is not intended to indicate a specific function or relationship between the various embodiments and / or settings discussed.

[0032] In order to better understand the purpose, structure and function of the present application, the present application will be further described in detail below.

[0033] As Figures 1-8 shown, the biological reagent pipetting device of the present application comprises a pipetting device body 1, and a moving assembly 2 is arranged in the inner cavity of the pipetting device body 1. The pipetting device body 1 is a pipetting workstation, which is a high-efficiency and reliable experimental tool. Its main function is to perform liquid moving, separation and drug screening operations in the fields of biochemistry, medicine, pharmacy and the like. A threaded rod 21 is rotatably connected to the front side of the bottom and top of the inner cavity of the pipetting device body 1. The outer surface of the threaded rod 21 is provided with two opposite external threads. A first motor 22 is mounted on the front side of the bottom of the inner cavity of the pipetting device body 1. The output shaft of the first motor 22 and the surface of the threaded rod 21 are respectively provided with two belt pulleys 23, and the two belt pulleys 23 are connected by a belt. The surface of the threaded rod 21 is threadedly connected with two first moving plates 24 and second moving plates 25 arranged in an upper-lower symmetrical manner. The first moving plate 24 and the second moving plate 25 are respectively provided with an inner thread at the position where they are connected to the threaded rod 21. The top of the first moving plate 24 is fixedly connected with a first top plate 219. The front and rear sides of the bottom of the inner cavity of the pipetting device body 1 are respectively connected with guide rods 26. One side of the first moving plate 24 and the second moving plate 25 is respectively movably connected to the surface of the guide rod 26. The top of the first moving plate 24 and the second moving plate 25 is respectively connected with a first placing box 27 and a second placing box 212. The first moving plate 24 is in contact with the bottom of the first placing box 27, so as to facilitate the lifting movement of the first placing box 27. The second moving plate 25 is fixedly connected with the second placing box 212. The bottom of the first placing box 27 and the bottom of the inner cavity of the pipetting device body 1 are respectively fixedly connected with a fixed plate 28. The second placing box 212 is located on the front side of the first placing box 27. Figure 2 and Figure 3As shown, the second placement box 212 is installed in the front side of the inner cavity of the pipette device body 1, and also in the front side of the first placement box 27. One side of the fixed plate 28 is provided with a plurality of running plates 210 which are connected by rotating shafts. The bottom of the first placement box 27 is provided with a second top plate 220 which is in contact with the bottom of the first placement box 27, so as to support the first placement box 27 when the second top plate 220 is lifted;

[0034] As shown in Figures 2-8 , the left and right sides of the second top plate 220 are fixedly connected with the surface of the first top plate 219. The bottom of the inner cavity of the pipette device body 1 and the second top plate 220 are respectively fixedly connected with a limiting frame 29. The surface of the limiting frame 29 is slidingly connected with one side of the running plate 210. As shown in Figure 5 and Figure 6 , the running plate 210 is slidingly connected with the limiting frame 29 at a round rod which is connected with the running plate 210. When the first placement box 27 is moved upward by the threaded rod 21, the round rod and the running plate 210 can be pulled upward to expand, and the running plate 210 can provide support force during the upward movement of the first placement box 27. The inner cavities of the first placement box 27 and the second placement box 212 are respectively provided with a second motor 213. The inner cavities of the first placement box 27 and the second placement box 212 are respectively connected with a rotating rod 214. The output shaft of the second motor 213 and the top end of the rotating rod 214 are respectively fixedly connected with a chain wheel 215. The surfaces of a plurality of chain wheels 215 are drivingly connected with a chain 216. The surface of the chain 216 is connected with a placement block 217 which is composed of a short round rod and a connecting block. The inner cavity of the short round rod is provided with a placement groove for placing a biological reagent bottle, so as to store the biological reagent bottle. The left and right sides of the inner cavity of the pipette device body 1 are slidingly connected with a first electric guide rail 218. The surface of the first electric guide rail 218 is connected with the surface of the first placement box 27, as shown in Figure 3 , Figure 4 and Figure 5The first electric guide rail 218 is connected with the first placing box 27, so as to facilitate the movement of the first placing box 27 and the first electric guide rail 218 to the front side of the pipette device body 1 after lifting. The front and rear sides of the inner cavity of the pipette device body 1 are provided with adjusting cavities for lifting the first placing box 27 and the second placing box 212. The bottom of the first electric guide rail 218 is provided with a displacement sensor 222. The surface of the first electric guide rail 218 is connected with the surface of the first placing box 27. The surface of the first electric guide rail 218 is fixedly connected with an L-shaped plate 221. The side of the L-shaped plate 221 away from the first electric guide rail 218 is fixedly connected with the surface of the first top plate 219, so as to facilitate the jacking of the first electric guide rail 218. The front side of the inner cavity of the pipette device body 1 is fixedly connected with a welding plate. The inner side of the welding plate is connected with the surface of the first motor 22. The front and rear sides of the top of the inner cavity of the pipette device body 1 are provided with second electric guide rails 223. The surface of the second electric guide rail 223 is movably connected with a third electric guide rail 226. The surface of the third electric guide rail 226 is movably connected with a pipette pump 224. The output end of the pipette pump 224 is provided with a pipette head 225. As shown in Figure 2 The inlet end of the pipette pump 224 is communicated with a hose. The top end of the hose penetrates into the top of the pipette device body 1 and is communicated with the outlet of the external liquid storage device, so as to facilitate the entry of the liquid into the pipette pump 224. The left side of the pipette device body 1 is provided with a power distribution cabinet. The left side of the pipette device body 1 is provided with a louver.

[0035] Specifically, when the user needs to take out different types of biological reagent bottles, the second motor 213 is started. The output shaft drives the sprocket 215 to rotate. The sprocket 215 drives the placing block 217 to move through the chain 216, so that the biological reagent bottle moves in front of the user, facilitating manual removal. If the biological reagent bottle in the deep place needs to be taken out, the first motor 22 is started. The output shaft drives the pulley 23 to rotate. The pulley 23 drives the threaded rod 21 to rotate. Based on the screw transmission principle, the second moving plate 25 moves downward, and the first moving plate 24 moves upward at the same time. The first moving plate 24 drives the first top plate 219 to push the first placing box 27 upward. Then the first top plate 219 moves to drive the first electric guide rail 218 to move synchronously, so as to move the first electric guide rail 218 upward. Then the limiting frame 29 and the fixed plate 28 move upward synchronously, pulling the running plate 210 to expand. When the first placing box 27 is higher than the second placing box 212, the height can be confirmed by the displacement sensor 222. The first electric guide rail 218 is started. The first placing box 27 moves forward, so as to be closer to the user, facilitating the taking out of the biological reagent bottle in the deep place.

[0036] The working principle of the biological reagent pipetting device is as follows: firstly, the user starts the pipetting pump 224 to perform drop storage on the reagent bottle stored in the placing block 217, then during the drop process, the second electric guide rail 223 is started to control the left and right positions of the pipetting pump 224, and when the pipetting pump 224 is moved to the appropriate position, the third electric guide rail 226 is started to control the height position of the pipetting pump 224, finally, the reagent bottle is dripped and stored by the cooperation of the pipetting pump 224 and the pipetting head 225, the user can start the moving assembly 2 to move the biological reagent on the front side of the pipetting device body 1 to the front for taking out, for the biological reagent in the deep place, the moving assembly 2 can be started to move the biological reagent in the deep place to the front of the user for taking out, which is convenient to use, so that the user can conveniently take out the biological reagents with different depths, and the working time for taking out the biological reagent is saved, the working efficiency is improved, and the use is convenient.

[0037] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model.In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model.Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A biological reagent pipetting device characterized by: The application relates to a pipetting device, which comprises a pipetting device body (1), the inner cavity of the pipetting device body (1) is provided with a moving assembly (2), the front sides of the bottom and the top of the inner cavity of the pipetting device body (1) are rotationally connected with a threaded rod (21), the front side of the bottom of the inner cavity of the pipetting device body (1) is provided with a first motor (22), the output shaft of the first motor (22) and the surface of the threaded rod (21) are respectively sleeved with two belt pulleys (23), the two belt pulleys (23) are drivingly connected through a belt, and the surface of the threaded rod (21) is threadedly connected with two first moving plates (24) and second moving plates (25) which are symmetrically arranged in an up-down mode.

2. The biological reagent pipetting device according to claim 1, wherein: The top of the first moving plate (24) is fixedly connected with a first top plate (219), the front and back sides of the bottom of the inner cavity of the pipetting device body (1) are both connected with guide rods (26), and one side of the first moving plate (24) and the second moving plate (25) is movably connected with the surface of the guide rod (26).

3. A biological reagent pipetting device according to claim 2, wherein: The top of the first moving plate (24) and the second moving plate (25) is respectively connected with a first placing box (27) and a second placing box (212), the bottom of the first placing box (27) and the bottom of the inner cavity of the pipetting device body (1) are respectively fixedly connected with fixed plates (28), and the second placing box (212) is located on the front side of the first placing box (27).

4. A biological reagent pipetting device according to claim 3, wherein: One side of the fixed plate (28) is provided with a plurality of running plates (210), and the plurality of running plates (210) are rotationally connected with each other through rotating shafts.

5. A biological reagent pipetting device according to claim 4, wherein: The bottom of the first placing box (27) is provided with a second top plate (220), the left and right sides of the second top plate (220) are fixedly connected with the surface of the first top plate (219), the bottom of the inner cavity of the pipetting device body (1) and the second top plate (220) are respectively fixedly connected with limiting frames (29), and the surface of the limiting frame (29) is slidably connected with one side of the running plate (210).

6. A biological reagent pipetting device according to claim 5, wherein: The inner cavities of the first placing box (27) and the second placing box (212) are respectively provided with second motors (213), and the inner cavities of the first placing box (27) and the second placing box (212) are respectively rotationally connected with rotating rods (214), and the output shaft of the second motor (213) and the top end of the rotating rod (214) are respectively fixedly connected with sprockets (215).

7. A biological reagent pipetting device according to claim 6, wherein: The surfaces of the plurality of sprockets (215) are drivingly connected with chains (216), and the surface of the chain (216) is connected with a placing block (217).

8. A biological reagent pipetting device according to claim 7, wherein: Both left and right sides of the inner cavity of the pipette device body (1) are slidably connected with first electric guide rails (218), the bottom of the first electric guide rail (218) is provided with a displacement sensor (222), the surface of the first electric guide rail (218) is connected with the surface of the first placing box (27), the surface of the first electric guide rail (218) is fixedly connected with an L-shaped plate (221), the side, away from the first electric guide rail (218), of the L-shaped plate (221) is fixedly connected with the surface of the first top plate (219), the front and back sides of the top of the inner cavity of the pipette device body (1) are provided with second electric guide rails (223), the surface of the second electric guide rail (223) is movably connected with a third electric guide rail (226), the surface of the third electric guide rail (226) is movably connected with a pipette pump (224), and the output end of the pipette pump (224) is provided with a pipette head (225).

9. The biological reagent pipetting device according to claim 1, wherein: The front side of the inner cavity of the pipette device body (1) is fixedly connected with a welding plate, and the inner side of the welding plate is connected with the surface of the first motor (22).

10. The biological reagent pipetting device according to claim 1, wherein: The left side of the pipette device body (1) is provided with a power distribution cabinet, and the left side of the pipette device body (1) is provided with a louver.

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