Multi-caliber pipetting head

Abstract

The utility model discloses a multi-caliber pipetting head. The multi-caliber pipetting head comprises a pipetting head body, the pipetting head body comprises a connecting sleeve, a connecting pipe, a pipette and a suction head, a sealing lantern ring is installed at the end of the pipette, the sealing lantern ring is made of an elastic silica gel material, a plurality of sets of cavities with different calibers are formed in the connecting pipe, and the connecting pipe is connected with the suction head. The pipettes can be matched with the sealing lantern rings installed at the ends to be installed in the multiple sets of cavities with different calibers of the connecting pipe, and through the arrangement of the connecting pipe, the pipettes and the suction heads, when various kinds of liquid with different properties need to be treated in a laboratory, the cavities with different calibers are formed in the connecting pipe to be matched with the pipettes for use, so that the liquid with different properties can be treated conveniently. The pipette can adapt to liquids with different viscosities and surface tensions through the design of the cavity and the use of the sealing ring, and meanwhile, residues of the liquids in the pipetting process can be reduced, so that the pipetting accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of pipette tip components, and in particular to a multi-diameter pipette tip. Background Technology

[0002] A pipette tip is a precision tool used for liquid handling in the laboratory. It is specifically designed to work with pipettes to achieve accurate and repeatable liquid movement or transfer. Also known as a pipette tip, it is one of the most commonly used consumables in the laboratory. The design and manufacture of this tool take into full consideration compatibility with specific brands and models of pipettes, ensuring sealing and fit, which is crucial for ensuring the accuracy and repeatability of experiments.

[0003] Existing technology discloses a pipette tip, which sequentially connects a pipette connector, a cylindrical reservoir, and a frustum-shaped tip. The pipette connector, reservoir, and tip share a common central axis, and the tip's opening edge forms a first arc shape in a cross-section passing through this central axis. The pipette tip of this application, due to the arc-shaped cross-section of the tip's opening edge, is smooth and burr-free, reducing shear forces during use and damage caused by collisions between delicate tissue structures and the pipette tip.

[0004] However, this pipette tip has certain drawbacks. It only has one diameter, and a single-diameter pipette tip may not be able to adapt to liquids with large differences in viscosity and surface tension, which limits its application under complex experimental conditions.

[0005] Therefore, it is necessary to provide a multi-diameter pipette to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, this utility model provides a multi-diameter pipette head that can adapt to liquids with large differences in viscosity and surface tension.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A multi-diameter pipette includes: a pipette body, which comprises a connecting sleeve, a connecting tube, a pipette, and a pipette tip. A sealing ring is installed at the end of the pipette, and the sealing ring is made of elastic silicone. The connecting tube has multiple cavities of different diameters. The pipette can be installed in the multiple cavities of different diameters of the connecting tube in conjunction with the sealing ring installed at the end.

[0009] Preferably, the lower end of the pipette is provided with a thread, and the upper end of the pipette tip is equipped with a corresponding threaded ring, so that the pipette tip can be screw-fixed inside the lower end of the pipette.

[0010] Preferably, the connecting pipe has multiple cavities of different diameters inside, and the upper surface of each cavity is equipped with a sealing ring.

[0011] Preferably, the upper periphery of the connecting pipe is provided with connecting threads, and the connecting pipe can be spirally fixed to the lower port of the connecting sleeve through the use of the connecting threads.

[0012] Preferably, the inner cavity of the connecting sleeve is provided with multiple sets of connecting cavities of different diameters, and the surfaces of the multiple sets of connecting cavities are surrounded by positioning threads.

[0013] Preferably, the connecting sleeve has multiple sets of weight-reducing cavities on its periphery, and the multiple sets of weight-reducing cavities are symmetrically distributed along the central axis of the connecting sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) This utility model, through the setting of connecting tube, pipette and pipette tip, when it is necessary to process a variety of liquids with different properties in the laboratory, the pipette is used in conjunction with the cavity with different diameter in the connecting tube, so that the pipette can adapt to liquids with different viscosities and surface tensions. At the same time, through the optimized cavity design and the use of sealing ring, the liquid residue in the pipetting process can be reduced, thereby improving the accuracy of pipetting.

[0016] (2) This utility model provides a thread in the lower cavity of the pipette and a threaded ring at the upper end of the pipette tip, so that the pipette tip can be spirally assembled in the lower cavity of the pipette. The spiral design can provide better airtightness, prevent liquid leakage and gas entry, and thus ensure the integrity of the liquid extraction. At the same time, the spiral installation makes it convenient for staff to disassemble and clean the pipette tip and pipette in the future.

[0017] (3) This utility model provides sealing rings on the upper surface of multiple cavities of different diameters in the inner cavity of the connecting tube. In actual installation, the pipette is inserted into the connecting tube, and the sealing ring at the end of the pipette is made of elastic rubber. The experimenter can squeeze the sealing ring into the required cavity according to the actual pipetting needs, and then cooperate with the sealing ring on the upper surface of the cavity. This can significantly improve the sealing performance and adaptability of the pipetting system, thereby ensuring the accuracy and convenience of the experiment. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the multi-diameter pipette provided by this utility model;

[0019] Figure 2 A schematic diagram of the disassembled structure of the connecting sleeve and connecting tube provided by this utility model;

[0020] Figure 3This is a schematic diagram of the pipette installation structure provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the pipette and pipette tip installation structure provided by this utility model.

[0022] The corresponding names of the reference numerals in the attached drawings are as follows: 100, pipette head body; 101, connecting sleeve; 102, connecting tube; 103, pipette tube; 104, pipette tip; 105, connecting cavity; 106, weight reduction cavity; 107, connecting thread; 108, cavity; 109, sealing ring; 110, threaded ring; 200, sealing collar. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0024] First embodiment:

[0025] like Figure 1-4 As shown, this utility model provides a multi-diameter pipette, comprising: a pipette body 100, which includes a connecting sleeve 101, a connecting tube 102, a pipette 103, and a pipette tip 104. A sealing ring 200 is installed at the end of the pipette 103. The sealing ring 200 is made of elastic silicone. The connecting tube 102 has multiple cavities 108 with different diameters. The pipette 103 can be installed in the multiple cavities 108 with different diameters in conjunction with the sealing ring 200 installed at its end. In actual installation, the pipette 103 is inserted into the connecting tube 102. Through the sealing ring 200 at the end of the pipette 103, which is made of elastic rubber, the experimenter can squeeze the sealing ring 200 into the required cavity 108 according to the actual pipetting needs.

[0026] With the connection tube 102, pipette 103, and pipette tip 104, when it is necessary to process various liquids with different properties in the laboratory, the connection tube 102 is equipped with cavities 108 of different diameters to cooperate with the use of the pipette 103, so that the pipette 103 can adapt to liquids with different viscosities and surface tensions.

[0027] Second embodiment:

[0028] like Figure 2-4 As shown, the lower end of the pipette 103 is threaded, and the upper end of the pipette tip 104 is equipped with a corresponding threaded ring 110. The pipette tip 104 can be screwed and fixedly installed inside the lower end of the pipette 103.

[0029] By providing a thread in the lower cavity of the pipette 103, and in conjunction with the threaded ring 110 on the upper end of the pipette tip 104, the pipette tip 104 can be screwed onto the lower cavity of the pipette 103. The screw design provides better airtightness, preventing liquid leakage and gas ingress, thereby ensuring the integrity of the liquid extraction. At the same time, the screw installation facilitates the subsequent disassembly and cleaning of the pipette tip 104 and the pipette 103 by the staff.

[0030] Third embodiment:

[0031] like Figure 2-3 As shown, the connecting pipe 102 has multiple cavities 108 of different diameters inside, and the upper surface of each cavity 108 is equipped with a sealing ring 109.

[0032] In actual installation, the pipette 103 is inserted into the connecting tube 102. The sealing ring 200 at the end of the pipette 103 is made of elastic rubber. The experimenter can squeeze the sealing ring 200 into the required cavity 108 according to the actual pipetting needs. Then, with the sealing ring 109 on the upper surface of the cavity 108, the sealing performance and adaptability of the pipetting system can be significantly improved, thereby ensuring the accuracy and convenience of the experiment.

[0033] Fourth embodiment:

[0034] like Figure 2-3 As shown, the upper periphery of the connecting pipe 102 is provided with a connecting thread 107. Through the cooperation of the connecting thread 107, the connecting pipe 102 can be spirally fixed to the lower port of the connecting sleeve 101. The spiral installation method of the connecting pipe 102 and the connecting sleeve 101 facilitates the subsequent disassembly and cleaning of the whole.

[0035] Fifth embodiment:

[0036] like Figure 2 As shown, the inner cavity of the connecting sleeve 101 is provided with multiple sets of connecting cavities 105 of different diameters. The surfaces of the multiple sets of connecting cavities 105 are surrounded by positioning threads. By providing multiple sets of connecting cavities 105 of different diameters in the connecting sleeve 101, it can be used for pipettes of different diameters, thereby increasing the applicability of the pipette head body 100.

[0037] Sixth embodiment:

[0038] like Figure 1-2 As shown, multiple sets of weight-reducing cavities 106 are provided around the connecting sleeve 101, and the multiple sets of weight-reducing cavities 106 are symmetrically distributed along the central axis of the connecting sleeve 101.

[0039] Working principle: In actual installation, the pipette 103 is inserted into the connecting tube 102. The sealing ring 200 at the end of the pipette 103 is made of elastic rubber. The experimenter can squeeze the sealing ring 200 into the required cavity 108 according to the actual pipetting needs. Then, the connecting sleeve 101 is provided with multiple sets of connecting cavities 105 of different diameters. The appropriate pipette can be selected for spiral connection.

[0040] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A multi-diameter pipette tip, characterized in that, include: The pipette head body (100) comprises a connecting sleeve (101), a connecting tube (102), a pipette (103), and a pipette tip (104). A sealing collar (200) is installed at the end of the pipette (103). The sealing collar (200) is made of elastic silicone. The connecting tube (102) is provided with multiple cavities (108) of different diameters. The pipette (103) can be installed in the multiple cavities (108) of different diameters of the connecting tube (102) in conjunction with the sealing collar (200) installed at the end.

2. The multi-diameter pipette head according to claim 1, characterized in that, The lower port of the pipette (103) is provided with a thread, and the upper end of the pipette tip (104) is equipped with a corresponding threaded ring (110). The pipette tip (104) can be screwed and fixedly installed in the lower port of the pipette (103).

3. The multi-diameter pipette head according to claim 1, characterized in that, The connecting pipe (102) has multiple cavities (108) with different diameters inside, and the upper surface of each cavity (108) is equipped with a sealing ring (109).

4. A multi-diameter pipette tip according to claim 3, characterized in that, The upper periphery of the connecting tube (102) is provided with a connecting thread (107). Through the use of the connecting thread (107), the connecting tube (102) can be spirally fixed to the lower port of the connecting sleeve (101).

5. A multi-diameter pipette according to claim 4, characterized in that, The inner cavity of the connecting sleeve (101) is provided with multiple sets of connecting cavities (105) of different diameters, and the surfaces of the multiple sets of connecting cavities (105) are surrounded by positioning threads.

6. A multi-diameter pipette according to claim 5, characterized in that, The connecting sleeve (101) has multiple sets of weight-reducing cavities (106) on its periphery, and the multiple sets of weight-reducing cavities (106) are symmetrically distributed along the central axis of the connecting sleeve (101).

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