Automatic loading pipette head structure

Abstract

The utility model relates to a pipette head, in particular to an automatic loading pipette head structure, which belongs to the technical field of pipette head structures and comprises a liquid storage tube, a storage volume adjusting tube is clamped in the liquid storage tube, an annular mounting groove is arranged on the outer side of the lower end of the storage volume adjusting tube, and a sealing damping piston is fixedly mounted in the annular mounting groove. The sealing damping piston and the liquid storage pipe are in mutual damping sliding clamping connection, the storage volume adjusting pipe is provided with a communicating hose, a positioning clamping pipe is designed at the upper end of the liquid storage pipe, a rubber threaded pipe is rotationally installed in the positioning clamping pipe, and a driving dismounting structure is designed on the inner side of the lower end of the rubber threaded pipe. A user can quickly adjust the storage space in the gun head, the pipetting efficiency of the user on different amounts of liquid is improved, the driving disassembly and assembly structure is used, the rubber threaded pipe is pushed to be quickly and tightly disassembled and assembled with the pipetting gun muzzle, and the automation and the loading effect during use of the gun head are improved.

Description

Technical Field

[0001] This utility model relates to an automatic loading pipette tip structure, belonging to the technical field of pipette tip structure. Background Technology

[0002] A pipette, also known as a liquid pipette, is a precision instrument used in laboratories to transfer small or minute amounts of liquid. Its basic principle is that the restoring force of a spring moves the piston to its original position, thereby discharging the liquid from the piston. A pipette mainly consists of a display window, volume adjustment mechanism, piston, O-ring, suction tube, and pipette tip. Pipettes are classified in various ways, including micropipettes, air-cushion pipettes, piston-moving pipettes, multichannel pipettes, electronic pipettes, and dispensers. Among these, the micropipette is the earliest type, with a suction range between 1 and 1000 μl, suitable for routine clinical chemistry laboratory use. Air-cushion pipettes and piston-moving pipettes, on the other hand, have different dispensing principles and specific application ranges.

[0003] The existing pipette tip with application number CN201520043430.1 includes a tubular tip body with a tip opening at the top. A soft rubber layer is provided at the connection point between the tip opening and the pipette, forming a sleeve-like structure around the tip opening. This invention utilizes the elasticity of the added soft rubber layer to achieve a tighter seal with the pipette opening, resulting in a good and reliable seal. Furthermore, only a small amount of force is needed to achieve the required seal between the tip body and the pipette opening, making it easier and more comfortable to install and remove. Additionally, the soft rubber layer and the tip opening are integrated through a two-material injection molding process, resulting in a tighter and more secure bond, further enhancing the sealing effect and reliability.

[0004] The device improves the tightness of the nozzle installation during use. However, like existing nozzles, its internal liquid storage space is fixed when the product leaves the factory. When users need to take different amounts of liquid, they need to keep changing nozzles of different sizes, which reduces work efficiency.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] The purpose of this invention is to provide an automatic loading pipette tip structure to solve the above problems, which improves the installation effect of the tip and allows for flexible adjustment of the internal space of the tip.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: an automatic loading pipette head structure, including a liquid storage tube, a volume adjustment tube slidably connected inside the liquid storage tube, a connecting hose provided on the volume adjustment tube, a positioning clamp tube designed at the upper end of the liquid storage tube, a rubber threaded tube rotatably installed inside the positioning clamp tube, and a drive disassembly and assembly structure designed on the inner side of the lower end of the rubber threaded tube.

[0008] Furthermore, in order to rapidly absorb and store the liquid, the lower end of the liquid storage tube is designed with a conical hollow tube, the lower end of the conical hollow tube is provided with a liquid inlet hole, and the two sides of the liquid storage tube are provided with adjustment sliding holes.

[0009] Furthermore, in order to improve the sealing effect during use, an annular mounting groove is provided on the outer side of the lower end of the storage regulating tube, and a sealing damping piston is fixedly installed inside the annular mounting groove. The sealing damping piston and the liquid storage tube are mutually damped and slidably engaged.

[0010] Furthermore, in order to enhance the connection between the pipette tip and the pipette, push adjustment blocks are fixedly installed on both sides of the upper end of the volume adjustment tube. The push adjustment blocks and the adjustment slide hole are slidably engaged with each other. A gas collection funnel is fixedly attached to the upper surface of the volume adjustment tube.

[0011] Furthermore, in order to improve the liquid storage effect of the liquid storage tube, one end of the connecting hose is fixedly connected to the output end of the gas collecting funnel, a pressure valve is fixedly installed inside the other end of the connecting hose, and a sealing connecting plate is fixedly fitted on the outside of the connecting hose, and the sealing connecting plate is fixedly installed inside the liquid storage tube.

[0012] Furthermore, in order to adjust the rotation state of the rubber threaded tube, a rotating mounting groove is provided on the inner side of the positioning clamp tube, the rubber threaded tube is rotatably clamped into the inside of the rotating mounting groove, and a bidirectional adjustment switch is embedded in one side of the positioning clamp tube.

[0013] Furthermore, in order to drive the rubber threaded tube to rotate, the drive assembly / disassembly structure includes a rotating gear ring, a drive motor, and a power battery. The rotating gear ring is fixedly welded to the lower end of the rubber threaded tube, the drive motor is installed on one side of the sealing connection plate, and the power battery is fixedly installed on the other side of the sealing connection plate.

[0014] Furthermore, in order to drive the rotating gear ring to rotate, a positioning mounting hole is provided on one side of the sealing connecting plate, the drive motor is embedded in the positioning mounting hole, and a power gear is fixedly installed at the output end of the drive motor, the power gear meshing with the rotating gear ring.

[0015] The technical effects and advantages of this utility model are as follows: By forming a double-layer structure with a volume adjustment tube and a liquid storage tube, the user can quickly adjust the internal storage space of the pipette head, thereby improving the user's efficiency in pipetting different volumes of liquid. The use of a drive disassembly and assembly structure allows for rapid and tight disassembly and assembly of the rubber threaded tube with the pipette nozzle, improving the automation and loading effect of the pipette head during use. Attached Figure Description

[0016] Figure 1 This is a side sectional view of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the storage regulating tube part in this utility model;

[0019] Figure 4 This is a schematic diagram of the rubber threaded tube portion of this utility model;

[0020] Figure 5 This is a schematic diagram of the sealing connection plate part in this utility model;

[0021] In the diagram: 1. Liquid storage pipe; 101. Conical empty pipe; 2. Liquid storage regulating pipe; 201. Sealing damping piston; 202. Push regulating block; 203. Gas collecting funnel; 3. Connecting hose; 301. Pressure valve; 302. Sealing connecting plate; 4. Positioning clamp pipe; 401. Bidirectional regulating switch; 5. Rubber threaded pipe; 6. Drive disassembly and assembly structure; 601. Rotating gear ring; 602. Drive motor; 603. Power battery. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5 As shown, an automatic loading pipette tip structure includes a storage tube 1, a volume adjustment tube 2 that is slidably connected inside the storage tube 1, a connecting hose 3 that is provided on the volume adjustment tube 2, a positioning clamp tube 4 that is designed at the upper end of the storage tube 1, a rubber threaded tube 5 that is rotatably installed inside the positioning clamp tube 4, and a drive disassembly structure 6 that is designed on the inner side of the lower end of the rubber threaded tube 5.

[0024] The lower end of the liquid storage tube 1 is designed with a conical hollow tube 101, and the lower end of the conical hollow tube 101 is provided with a liquid inlet hole to facilitate the collection and output of liquid. Adjustment sliding holes are provided on both sides of the liquid storage tube 1 to facilitate the adjustment of the position of the storage regulating tube 2. An annular mounting groove is provided on the outer side of the lower end of the storage regulating tube 2. A sealing damping piston 201 is fixedly installed inside the annular mounting groove. The sealing damping piston 201 and the liquid storage tube 1 are mutually damped and slidably engaged to improve the sealing performance of the connection between the storage regulating tube 2 and the liquid storage tube 1.

[0025] Push adjustment blocks 202 are fixedly installed on both sides of the upper end of the storage adjustment tube 2. The push adjustment blocks 202 slide and engage with the adjustment slide hole, driving the storage adjustment tube 2 to move up and down. A gas collecting funnel 203 is fixedly attached to the upper surface of the storage adjustment tube 2. One end of the connecting hose 3 is fixedly connected to the output end of the gas collecting funnel 203, so that the pipette tip and the pipette are stably connected. A pressure valve 301 is fixedly installed inside the other end of the connecting hose 3. A sealing connecting plate 302 is fixedly fitted on the outside of the connecting hose 3. The sealing connecting plate 302 is fixedly installed inside the liquid storage tube 1 to improve the connection effect between the inside of the pipette tip and the pipette.

[0026] The inner side of the positioning tube 4 is provided with a rotating mounting groove, and the rubber threaded tube 5 is rotatably engaged in the inside of the rotating mounting groove, so that the pipette tip and the pipette are tightly connected to each other. A two-way adjustment switch 401 is embedded in one side of the positioning tube 4 to adjust the rotation direction of the rubber threaded tube 5.

[0027] The drive assembly / disassembly structure 6 includes a rotating gear ring 601, a drive motor 602, and a power battery 603. The rotating gear ring 601 is fixedly welded to the lower end of the rubber threaded tube 5, driving the rotating gear ring 601 to rotate. The drive motor 602 is installed on one side of the sealing connection plate 302, and the power battery 603 is fixedly installed on the other side of the sealing connection plate 302 to provide power for the operation of the device. A positioning mounting hole is opened on one side of the sealing connection plate 302, and the drive motor 602 is embedded in the positioning mounting hole. A power gear is fixedly installed at the output end of the drive motor 602. The power gear meshes with the rotating gear ring 601 to drive the rubber threaded tube 5 to rotate.

[0028] When using this device, the user activates the drive disassembly structure 6 to push the rubber threaded tube 5 to rotate and engage with the pipette. When taking liquids of different concentrations, the user adjusts the position of the volume adjustment tube 2 inside the liquid storage tube 1 by pushing the adjustment block 202, thereby adjusting the size of the space inside the lower end of the pipette head.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic loading pipette tip structure, comprising a liquid storage tube (1), characterized in that: The liquid storage tube (1) is internally slidably clamped with a storage regulating tube (2), and the storage regulating tube (2) is provided with a connecting hose (3). The upper end of the liquid storage tube (1) is provided with a positioning clamping tube (4), and a rubber threaded tube (5) is rotatably mounted inside the positioning clamping tube (4), and a driving disassembly structure (6) is provided on the inner side of the lower end of the rubber threaded tube (5).

2. The automatic loading pipette tip structure according to claim 1, characterized in that: The lower end of the liquid storage tube (1) is designed with a conical hollow tube (101), the lower end of the conical hollow tube (101) is provided with a liquid inlet hole, and both sides of the liquid storage tube (1) are provided with adjustment sliding holes.

3. The automatic loading pipette tip structure according to claim 2, characterized in that: An annular mounting groove is provided on the outer side of the lower end of the storage regulating tube (2), a sealing damping piston (201) is fixedly installed inside the annular mounting groove, and the sealing damping piston (201) and the liquid storage tube (1) are mutually damped and slidably engaged.

4. The automatic loading pipette tip structure according to claim 2, characterized in that: Pushing adjustment blocks (202) are fixedly mounted on both sides of the upper end of the storage regulating tube (2), the pushing adjustment blocks (202) and the adjusting sliding holes are slidably engaged with each other, and a gas collecting funnel (203) is fixedly adhered to the upper surface of the storage regulating tube (2).

5. The automatic loading pipette tip structure according to claim 4, characterized in that: One end of the connecting hose (3) is fixedly connected to the output end of the gas collecting funnel (203), a pressure valve (301) is fixedly installed inside the other end of the connecting hose (3), and a sealing connecting plate (302) is fixedly sleeved on the outside of the connecting hose (3), and the sealing connecting plate (302) is fixedly installed inside the liquid storage tube (1).

6. The automatic loading pipette tip structure according to claim 1, characterized in that: A rotational installation groove is provided on the inner side of the positioning clamping tube (4), and the rubber threaded tube (5) is rotationally clamped inside the rotational installation groove. A two-way adjustment switch (401) is embedded and installed on one side of the positioning clamping tube (4).

7. The automatic loading pipette tip structure according to claim 5, characterized in that: The driving and disassembling structure (6) comprises a rotating gear ring (601), a driving motor (602) and a power storage battery (603); the rotating gear ring (601) is fixedly welded to the lower end of the rubber threaded tube (5); the driving motor (602) is installed on one side of the sealing connection plate (302); and the power storage battery (603) is fixedly installed on the other side of the sealing connection plate (302).

8. The automatic loading pipette tip structure according to claim 7, characterized in that: A positioning installation hole is provided on one side of the sealing connection plate (302), and the driving motor (602) is embedded in the interior of the positioning installation hole. A power gear is fixedly installed at the output end of the driving motor (602), and the power gear and the rotating gear ring (601) are meshed with each other.

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