Multifunctional pipettor

Abstract

The utility model discloses a multifunctional pipettor which comprises a pipetting frame, an extraction cavity is arranged in the pipetting frame, a piston block is nested in the extraction cavity in a sliding connection mode, a piston rod is fixedly connected to the piston block, a first fixing block is fixedly connected to the top end of the piston rod and located above the pipetting frame, and a second fixing block is fixedly connected to the top end of the piston rod. A pull ring is arranged at the top of the first fixing block, a connector communicated with the extraction cavity is arranged at the bottom end of the pipetting frame, a liquid extraction head is connected to the connector in an inserted mode, a fixing groove is formed in the pipetting frame, a first screw is rotationally connected into the fixing groove, and a screw block is connected to the first screw in a threaded and sleeved mode. According to the utility model, through the arrangement of the pipetting frame, the piston block, the piston rod, the connector and the liquid taking head, a stable pipettor structure can be formed through combination, and the piston block is driven to move by pushing and pulling the piston rod, so that the liquid is extracted and discharged, and the pipetting operation is realized.

Description

Technical Field

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

[0002] A pipette, also known as a pipette gun, is a measuring tool used to transfer liquid from one container to another within a certain range. It is widely used in fields such as biology and chemistry and is a common tool in laboratories for transferring small or trace amounts of liquid.

[0003] A multifunctional molecular biology pipette with publication number CN210965171U is described. The pipette includes a grip area on its outer shell, with finger rings on the grip area. These finger rings include an index finger ring, a middle finger ring, a ring on the ring finger, and a ring on the little finger. Each of these rings is a semi-circular ring structure and is fixedly connected to the outer shell. The index finger ring, middle finger ring, ring finger ring, and little finger ring are arranged vertically. While the overall structure allows for normal liquid extraction and dispensing, it requires manual pushing to complete the pipetting, which can lead to insufficient stability and affect the accuracy of the extraction or dispensing volume. Overall, it lacks convenience in use. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multifunctional pipette.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multifunctional pipette, comprising a pipette holder, a suction chamber provided inside the pipette holder, a piston block slidably connected inside the suction chamber, a piston rod fixedly connected to the piston block, a fixing block one fixedly connected to the top of the piston rod and above the pipette holder, a pull ring provided at the top of the fixing block one, a connector communicating with the suction chamber provided at the bottom of the pipette holder, a liquid-collecting head inserted into the connector head, a fixing groove provided inside the pipette holder, a screw rod one rotatably connected inside the fixing groove, a screw block threaded onto the screw rod one, a motor having its output end fixedly connected to the screw rod one inside the pipette holder, a connecting rod fixedly connected to the top of the screw block, a fixing block two fixedly connected to the top of the connecting rod and above the pipette holder, a connecting mechanism provided between the fixing block one and the fixing block two, and a handle provided on the outer surface of the pipette holder.

[0006] As a further description of the above technical solution:

[0007] The connecting mechanism includes a storage groove on the second fixed block and a pin groove on the first fixed block. A pin block is nested and slidably connected in the storage groove. A screw rod is rotatably connected in the second fixed block. A threaded groove is provided on the pin block. The screw rod is threadedly connected to the threaded groove. The pin block and the pin groove are nested and fitted together. A rotating wheel is fixedly connected to one end of the screw rod.

[0008] As a further description of the above technical solution:

[0009] The rotating wheel is located on the outer side of the fixed block two, and the outer surface of the rotating wheel is provided with anti-slip texture.

[0010] As a further description of the above technical solution:

[0011] A fixing box is fixedly connected between the top of the handle and the outer surface of the pipette. A battery and a control box are respectively installed in the fixing box. The motor is electrically connected to the battery and the control box.

[0012] As a further description of the above technical solution:

[0013] The top of the fixing box is equipped with a control button that is electrically connected to the control box.

[0014] As a further description of the above technical solution:

[0015] The outer surface of the pipette is provided with a scale corresponding to the extraction chamber.

[0016] This utility model has the following beneficial effects:

[0017] This multifunctional pipette, through the arrangement of a pipette holder, piston block, piston rod, connector, and dispensing head, can form a stable pipette structure. Pushing and pulling the piston rod moves the piston block to achieve liquid extraction and dispensing, thus realizing pipetting operations. The arrangement of a motor, screw, screw block, connector, and fixing block allows the piston rod to move, enabling automatic liquid extraction or dispensing. This facilitates convenient pipetting without the need for laborious manual operation, greatly improving the ease of operation. Automatic pipetting ensures stability during operation, allowing for more precise control of the extraction and dispensing volume, thus improving operational accuracy. The connecting mechanism allows the two fixing blocks to be stably connected, enabling automatic pipetting, while also allowing for easy separation of the two fixing blocks for manual liquid extraction and dispensing, meeting manual operation needs. The structure is simple to operate and flexible to use. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of a multifunctional pipette proposed in this utility model;

[0019] Figure 2 This is a front view of a multifunctional pipette proposed in this utility model;

[0020] Figure 3 This utility model proposes a multifunctional pipette. Figure 2 A magnified view of A in the middle.

[0021] Legend:

[0022] 1. Pipette; 2. Extraction chamber; 3. Piston block; 4. Piston rod; 5. Fixing block one; 6. Pull ring; 7. Connector; 8. Dispensing head; 9. Fixing groove; 10. Screw one; 11. Screw block; 12. Motor; 13. Connecting rod; 14. Fixing block two; 15. Storage groove; 16. Pin block; 17. Screw two; 18. Threaded groove; 19. Pin groove; 20. Rotary wheel; 21. Handle; 22. Fixing box; 23. Battery; 24. Control box; 25. Control button; 26. Scale. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Reference Figure 1-3This utility model provides an embodiment of a multifunctional pipette, including a pipette holder 1, a suction chamber 2 within the pipette holder 1, a piston block 3 nested and slidably connected within the suction chamber 2, a piston rod 4 fixedly connected to the piston block 3, a fixing block 5 fixedly connected to the top of the piston rod 4 above the pipette holder 1, a pull ring 6 at the top of the fixing block 5, pulling the pull ring 6 causes the piston rod 4 to move via the fixing block 5, and the piston rod 4 causes the piston block 3 to move, creating a negative pressure effect within the suction chamber 2, thereby drawing liquid into the suction chamber 2. A connector 7 communicating with the suction chamber 2 is provided at the bottom of the pipette holder 1, and a liquid-collecting head 8 is inserted into the connector 7. A fixing groove 9 is provided within the pipette holder 1, and a screw is rotatably connected within the fixing groove 9. 10. A screw block 11 is threaded onto the screw 10. A motor 12 with its output end fixedly connected to the screw 10 is installed inside the pipette 1. A connecting rod 13 is fixedly connected to the top of the screw block 11. A fixing block 14 is fixedly connected to the top of the connecting rod 13 and above the pipette 1. A connecting mechanism is provided between the fixing block 1 and the fixing block 14. The connecting mechanism allows the two fixing blocks to be connected together. When the motor 12 drives the screw 10 to rotate, it can drive the screw block 11 to rise and fall. The screw block 11 drives the connecting rod 13 to move. The connecting rod 13 drives the fixing block structure to move. The fixing block drives the piston rod 4 to move. In this way, liquid can be extracted and discharged. A handle 21 is provided on the outer surface of the pipette 1. The handle 21 is provided to facilitate hand operation of the entire structure.

[0026] The connecting mechanism includes a receiving groove 15 on the second fixed block 14 and a pin groove 19 on the first fixed block 5. A pin block 16 is nested and slidably connected in the receiving groove 15. A screw rod 17 is rotatably connected in the second fixed block 14. A threaded groove 18 is provided on the pin block 16. The screw rod 17 and the threaded groove 18 are threadedly connected. The pin block 16 and the pin groove 19 are nested together. One end of the screw rod 17 is fixedly connected to a rotating wheel 20, which is located on the outside of the second fixed block 14. The outer surface of the rotating wheel 20 is provided with anti-slip texture. Rotating the rotating wheel 20 causes the screw rod 17 to rotate. The screw rod 17, through its engagement with the threaded groove 18, can drive the pin block 16 to insert into the pin groove 19, thus completing the positioning and installation of the connecting mechanism. This allows the entire structure to automatically perform liquid transfer operations. Similarly, the connecting mechanism can be opened to separate the two fixed blocks, allowing for manual liquid transfer operations. The structure is simple to operate and flexible and convenient to use.

[0027] A mounting box 22 is fixedly connected between the top of the handle 21 and the outer surface of the pipette 1. A battery 23 and a control box 24 are respectively installed inside the mounting box 22. The motor 12 is electrically connected to the battery 23 and the control box 24. A control button 25 electrically connected to the control box 24 is provided on the top of the mounting box 22. The battery 23 can supply power to the motor 12. The control box 24, together with the control button 25, can conveniently control the operation of the motor 12.

[0028] A scale 26 is provided on the outer surface of the pipette 1 at a position corresponding to the extraction chamber 2. The scale 26 can be used to easily observe the liquid level in the extraction chamber 2.

[0029] Working principle: When using the multi-functional pipette, insert the dispensing head 8 into the bottle and start the motor 12. The motor 12 drives the screw 10 to rotate, which in turn drives the screw block 11 to rise. The screw block 11 moves the fixed block structure upward through the connecting rod 13. The fixed block moves the piston rod 4 upward, which in turn moves the piston block 3 upward. When the piston block 3 moves, it creates a negative pressure in the extraction chamber 2, thus automatically extracting the liquid. Similarly, the extracted liquid can be discharged, thereby achieving automatic and convenient pipetting operation. Open the connecting mechanism to separate the fixed block 5 from the fixed block 14. Push or pull the pull ring 6 to perform manual pipetting operation on the same principle.

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

Claims

1. A multifunctional pipette comprising a pipetting stand (1), characterized in that: The pipette stand (1) is provided with a extraction cavity (2), the piston block (3) is slidably connected in the extraction cavity (2), the piston rod (4) is fixedly connected to the piston block (3), the top end of the piston rod (4) is fixedly connected to the fixed block one (5) above the pipette stand (1), the top of the fixed block one (5) is provided with a pull ring (6), the bottom end of the pipette stand (1) is provided with a connecting head (7) in communication with the extraction cavity (2), the connecting head (7) is inserted with a liquid taking head (8), the pipette stand (1) is provided with a fixed groove (9), the screw rod one (10) is rotatably connected in the fixed groove (9), the screw block (11) is threadedly connected to the screw rod one (10), the pipette stand (1) is provided with a motor (12) with the output end fixedly connected to the screw rod one (10), the top of the screw block (11) is fixedly connected with a connecting rod (13), the top end of the connecting rod (13) is fixedly connected to the fixed block two (14) above the pipette stand (1), the fixed block one (5) and the fixed block two (14) are provided with a connecting mechanism, and the outer surface of the pipette stand (1) is provided with a handle (21).

2. A multi-functional pipette according to claim 1, characterized in that: The connecting mechanism comprises a receiving groove (15) provided on the fixed block two (14) and a pin groove (19) provided on the fixed block one (5), the pin block (16) is slidably connected in the receiving groove (15), the screw rod two (17) is rotatably connected in the fixed block two (14), the pin block (16) is provided with a threaded groove (18), the screw rod two (17) is threadedly connected with the threaded groove (18), the pin block (16) and the pin groove (19) are nested and matched, and one end of the screw rod two (17) is fixedly connected with a rotating wheel (20).

3. A multi-functional pipette according to claim 2, characterized in that: The rotating wheel (20) is located outside the fixed block two (14), and the outer surface of the rotating wheel (20) is provided with anti-skid lines.

4. The multi-functional pipette of claim 1, wherein: The top of the handle (21) and the outer surface of the pipette stand (1) are fixedly connected with a fixed box (22), the fixed box (22) is provided with a battery (23) and a control box (24) respectively, and the motor (12), the battery (23) and the control box (24) are electrically connected.

5. A multi-functional pipette according to claim 4, characterized in that: The top of the fixed box (22) is provided with a control button (25) electrically connected with the control box (24).

6. The multi-functional pipette of claim 1, wherein: The outer surface of the pipette stand (1) and the corresponding position of the extraction cavity (2) are provided with a scale table (26).

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