Electric pipettor capable of quantitatively taking liquid

Abstract

The utility model relates to the technical field of electric pipettors, and discloses an electric pipettor capable of quantitatively taking liquid, which comprises a pipettor body I. A replacement component is arranged at the lower part of the pipettor body I. Two through holes are formed in the bottom of the pipettor body I. A pipettor body II is connected to the inner circumference of the bottom of the pipettor body I in a sliding manner, and the pipettor body II is connected to the bottom of the pipettor body II in a sliding manner. Two inserting rods are slidably connected to the inner side of the upper portion of the second pipettor body, two telescopic springs are fixedly connected to the opposite sides of the two inserting rods, an electric push rod is fixedly connected to the top of the first pipettor body, and a piston is fixedly connected to the driving end of the electric push rod. According to the utility model, through the dismounting mechanism, the pipette can be dismounted, the interior of the pipette can be regularly maintained and cleaned, and through the replacing mechanism, the pipette can be replaced, so that the bacteria breeding can be reduced, and the pipette dismounting device is suitable for different types of pipettes.

Description

Technical Field

[0001] The utility model relates to the technical field of electric liquid transfer instruments, in particular to an electric liquid transfer instrument capable of quantitatively taking liquid. Background Art

[0002] The pipette is a measuring instrument. The amount of liquid transferred is determined by the distance a well-matched piston moves in the clear plug sleeve. The basic structure of the pipette is mainly composed of a display window, a capacity adjustment component, a piston, an O-ring, a suction tube and a liquid introduction nozzle (commonly known as a gun head).

[0003] Long-term use can cause the internal spring to deform, which can lead to errors. In addition, due to its reliance on air displacement, pipettes will change with changes in the environment. Different temperatures, altitudes, and operations can cause pipetting errors. Pipettes must be regularly maintained and calibrated to ensure accuracy and repeatability. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an electric pipette that can take quantitative liquids, aiming to improve the existing technology that the pipette can be disassembled for regular maintenance and cleaning of the interior, thereby extending the service life, and the pipette can be replaced to reduce bacterial growth and adapt to different types of pipettes.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electric pipette that can quantitatively take liquids, including a pipette body one, a replacement component is arranged at the lower part of the pipette body, two through holes are opened at the bottom of the pipette body one, a pipette body two is slidably connected to the inner periphery of the bottom of the pipette body one, two plug rods are slidably connected to the inner side of the upper part of the pipette body two, two telescopic springs are fixedly connected to the opposite sides of the two plug rods, an electric push rod is fixedly connected to the top of the pipette body one, and a piston is fixedly connected to the driving end of the electric push rod.

[0006] Furthermore, the replacement component includes a fixing seat, which is fixedly connected to the bottom of the second pipette body, and a plurality of evenly distributed side panels are fixedly connected to the bottom of the fixing seat, and a fixed joint is fixedly connected to the bottom of the fixing seat.

[0007] Furthermore, the outer peripheries of the side plates are slidably connected with connecting tubes.

[0008] Furthermore, a pipette is fixedly connected to the bottom of the connecting tube.

[0009] Furthermore, a handle is fixedly connected to the right side of an upper portion of the pipette body.

[0010] Furthermore, a suction button is slidably connected to the bottom of the handle.

[0011] Furthermore, a return button is slidably connected to the bottom of the handle.

[0012] Furthermore, a charging socket is provided at the end of the handle.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, when the pipette body 1 and the pipette body 2 need to be separated, the two insertion rods are pressed to make them detach from the two through holes through the telescopic force of the telescopic spring, thereby separating the pipette body 1 and the pipette body 2. When installing, the two insertion rods are pressed again to make them return to the two through holes through the telescopic force of the telescopic spring, thereby realizing that the pipette can be disassembled and the interior can be regularly maintained and cleaned.

[0015] 2. In the utility model, when replacing the pipette, the connecting tube is inserted into the fixed joint, so that the side plate on the fixed seat squeezes the inside of the connecting tube to fix it, thereby replacing it. The pipette can be replaced to reduce bacterial growth and adapt to different types of pipettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of an electric pipette capable of quantitatively taking liquids proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a replacement component of an electric pipette capable of quantitatively taking liquids proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a telescopic spring of an electric pipette capable of quantitatively taking liquids proposed by the utility model;

[0019] Figure 4 The utility model discloses a schematic diagram of the structure of a side plate of an electric liquid transfer instrument capable of quantitatively taking liquid.

[0020] Legend:

[0021] 1. Pipette body 1; 2. Suction button; 21. Replacement assembly; 211. Fixing seat; 212. Fixing joint; 213. Side panel; 3. Return button; 4. Handle; 5. Charging socket; 6. Insert rod; 7. Pipette body 2; 8. Connecting tube; 9. Pipette; 10. Electric push rod; 11. Piston; 12. Perforation; 13. Telescopic spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-3 The utility model provides an embodiment: an electric pipette capable of quantitatively taking liquid, comprising a pipette body 1, a replacement assembly 21 is arranged at the lower part of the pipette body 1, two through holes 12 are provided at the bottom of the pipette body 1, a pipette body 2 7 is slidably connected to the inner periphery of the bottom of the pipette body 1, two insertion rods 6 are slidably connected to the inner side of the upper part of the pipette body 2 7, two telescopic springs 13 are fixedly connected to the opposite sides of the two insertion rods 6, an electric push rod 10 is fixedly connected to the top of the pipette body 1, a piston 11 is fixedly connected to the driving end of the electric push rod 10, and a connecting tube 8 is slidably connected to the outer periphery of the side plate 213.

[0024] Specifically, when it is necessary to separate the pipette body 1 and the pipette body 2 7, press the two insertion rods 6 so that they are disengaged from the two through holes 12 by the telescopic force of the telescopic spring 13, thereby separating the pipette body 1 and the pipette body 2 7. When installing, press the two insertion rods 6 again so that they are returned to the two through holes 12 by the telescopic force of the telescopic spring 13, and the connecting tube 8 can be inserted into the outer periphery of the side plate 213.

[0025] Reference Figure 2 and Figure 4 The replacement component 21 includes a fixed seat 211, which is fixedly connected to the bottom of the pipette body 7, a plurality of evenly distributed side panels 213 are fixedly connected to the bottom of the fixed seat 211, a fixed joint 212 is fixedly connected to the bottom of the fixed seat 211, a pipette 9 is fixedly connected to the bottom of the connecting tube 8, and a handle 4 is fixedly connected to the upper right side of the pipette body 1.

[0026] Specifically, when replacing the pipette 9, the connecting tube 8 is inserted into the fixed joint 212, so that the side plate 213 on the fixing seat 211 squeezes the inside of the connecting tube 8 to fix it, thereby replacing it, and holding the handle 4 to quantitatively take liquid.

[0027] Reference Figure 1 The bottom of the handle 4 is slidably connected to a suction button 2, the bottom of the handle 4 is slidably connected to a return button 3, and the end of the handle 4 is provided with a charging socket 5.

[0028] Specifically, holding the handle 4 and pressing the suction button 2 can allow the electric push rod 10 to drive the piston 11 to move on the inner wall of the pipette body 1 to generate suction, and the liquid can be sucked into the pipette 9. Pressing the return button 3 can allow the sucked liquid to be withdrawn, and the charging socket 5 can allow the pipette to be charged.

[0029] Working principle: holding the handle 4 and pressing the suction button 2 allows the electric push rod 10 to drive the piston 11 to move on the inner wall of the pipette body 1 to generate suction, and the liquid is sucked into the pipette 9. Pressing the return button 3 allows the sucked liquid to be withdrawn. When replacing the pipette 9, insert the connecting tube 8 into the fixed joint 212, so that the side plate 213 on the fixing seat 211 squeezes the inside of the connecting tube 8 to fix it, so as to replace it. When it is necessary to separate the pipette body 1 and the pipette body 2 7, press the two insertion rods 6 so that they are separated from the two through holes 12 by the telescopic force of the telescopic spring 13, thereby separating the pipette body 1 and the pipette body 2 7. When installing, press the two insertion rods 6 again so that they are returned to the two through holes 12 by the telescopic force of the telescopic spring 13.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric pipette capable of quantitatively taking liquid, comprising a pipette body (1), characterized in that: A replacement component (21) is arranged at the lower part of the pipette body (1), two through holes (12) are arranged at the bottom of the pipette body (1), the inner circumference of the bottom of the pipette body (1) is slidably connected to the pipette body (7), the inner side of the upper part of the pipette body (7) is slidably connected to two insertion rods (6), two telescopic springs (13) are fixedly connected to the opposite sides of the two insertion rods (6), the top of the pipette body (1) is fixedly connected to an electric push rod (10), and the driving end of the electric push rod (10) is fixedly connected to a piston (11).

2. An electric pipette capable of quantitatively taking liquid according to claim 1, characterized in that: The replacement assembly (21) comprises a fixing seat (211), the fixing seat (211) being fixedly connected to the bottom of the second pipette body (7), the bottom of the fixing seat (211) being fixedly connected to a plurality of evenly distributed side panels (213), and the bottom of the fixing seat (211) being fixedly connected to a fixing joint (212).

3. The electric pipette capable of quantitatively taking liquid according to claim 2, characterized in that: The outer circumference of the side plate (213) is slidably connected with a connecting tube (8).

4. The electric pipette capable of quantitatively taking liquid according to claim 3, characterized in that: The bottom of the connecting tube (8) is fixedly connected with a pipette (9).

5. The electric pipette capable of quantitatively taking liquid according to claim 1, characterized in that: A handle (4) is fixedly connected to the right side of the upper part of the pipette body (1).

6. The electric pipette capable of quantitatively taking liquid according to claim 5, characterized in that: The bottom of the handle (4) is slidably connected with a suction button (2).

7. The electric pipette capable of quantitatively taking liquid according to claim 5, characterized in that: The bottom of the handle (4) is slidably connected with a return button (3).

8. The electric pipette capable of quantitatively taking liquid according to claim 5, characterized in that: A charging socket (5) is provided at the end of the handle (4).

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