Pipetting adapters and pipetting equipment

Abstract

This invention provides a pipetting adapter and a pipetting device. The first end of the pipetting adapter is connected to a pipetting element, and the second end is connected to a suction element. The pipetting element is used to drive the suction element through the pipetting adapter to complete the pipetting operation. The second end of the pipetting adapter includes a first fitting portion and a second fitting portion. The first fitting portion is connected to a suction element with a first size, and the second fitting portion is connected to a suction element with a second size, where the first size is larger than the second size. The first fitting portion has a first sealing portion and a first guiding portion arranged sequentially along the connection direction with the suction element, and the second fitting portion has a second sealing portion and a second guiding portion arranged sequentially along the connection direction with the suction element. Thus, the pipetting adapter can simultaneously accommodate two different sizes of suction elements, effectively improving its practicality, flexibility, and efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of biological sample collection equipment, specifically to a pipetting adapter and a pipetting device. Background Technology

[0002] In molecular biology research and experiments, it is often necessary to isolate and purify plasmid DNA from bacteria to obtain high-purity, structurally intact plasmid DNA for subsequent research and experiments. During the isolation and purification of plasmid DNA, pipette tips of different capacities are used to aspirate and transfer liquids to precisely control the amount of each liquid added.

[0003] However, different capacities of aspirators require corresponding pipetting devices to drive the aspirator to draw and transfer liquid. This not only causes inconvenience to researchers and limits the flexibility and efficiency of molecular biology research and experiments, but also increases the size of experimental equipment, as well as the manufacturing and maintenance costs of the equipment. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a pipetting adapter is provided.

[0005] The first end of the pipetting adapter is connected to the pipetting element, and the second end of the pipetting adapter is connected to the aspirator. The pipetting element is used to drive the aspirator through the pipetting adapter to complete the pipetting operation. The second end of the pipetting adapter includes a first adapter portion and a second adapter portion. The first adapter portion is connected to the aspirator having a first size, and the second adapter portion is connected to the aspirator having a second size. The first size is larger than the second size. The first adapter portion has a first sealing portion and a first guiding portion arranged sequentially along the connection direction with the aspirator, and the second adapter portion has a second sealing portion and a second guiding portion arranged sequentially along the connection direction with the aspirator.

[0006] This utility model discloses a pipetting adapter. The first end of the pipetting adapter can be connected to a pipette, and the second end can include a first adapter portion and a second adapter portion. The first adapter portion can be connected to a pipette of a first size, and the second adapter portion can be connected to a pipette of a second size. Thus, the pipetting adapter can simultaneously adapt to two different sizes of pipettes, effectively improving its practicality, flexibility, and efficiency. When the pipetting adapter is applied in molecular biology research and experiments, one pipetting adapter can be connected to pipettes of different sizes, avoiding the need for multiple pipettes adapted to different sizes, effectively reducing the size of experimental equipment, as well as manufacturing and maintenance costs. Furthermore, the first sealing portion ensures the sealing and firmness of the connection between the first adapter portion and the pipette, and the first guiding portion ensures the convenience and stability of the connection. Similarly, the second sealing portion and the second guiding portion also possess the aforementioned beneficial effects, which will not be elaborated further here.

[0007] For example, the first adapter and the second adapter are arranged sequentially along the direction of connection with the liquid suction member.

[0008] For example, the second adapter is disposed at the end of the first adapter, and the axis of the first adapter and the axis of the second adapter are misaligned.

[0009] For example, the radial dimension of the first sealing portion is greater than the radial dimension of the first guide portion, and / or the radial dimension of the second sealing portion is greater than the radial dimension of the second guide portion.

[0010] For example, a first guide portion is formed at the end of the first adapter portion away from the first end, and a second guide portion is formed at the end of the second adapter portion away from the first end.

[0011] For example, a first limiting part is provided between the first sealing part and the first guiding part, and the first limiting part is used to limit the displacement of the pipetting adapter in the direction of the pipetting element.

[0012] For example, the second adapter further includes a transition section located between the second sealing portion and the second guide portion, the transition section having at least one abutting surface for abutting against the inner wall surface of the liquid suction member to limit the relative rotation of the second adapter with respect to the liquid suction member.

[0013] For example, there are multiple first sealing portions, which are spaced apart along the axial direction of the first adapter; and / or, there are multiple second sealing portions, which are spaced apart along the axial direction of the second adapter.

[0014] According to another aspect of the present invention, a pipetting device is also provided, including a pipetting element, a suction element, and a pipetting adapter as described above, wherein the pipetting element is used to connect with the pipetting adapter so as to drive the suction element to move through the pipetting adapter.

[0015] For example, the pipetting device includes a driving component and a transmission component. The pipetting adapter is connected to the driving component through the transmission component, and the driving component is used to drive the pipetting adapter to move linearly through the transmission component.

[0016] For example, the pipette also includes a mounting plate, a drive member is disposed on the mounting plate, the mounting plate is provided with a groove, and the drive member is provided with a slider adapted to the groove.

[0017] For example, there are multiple pipetting adapters, and the second adapter portions of two adjacent pipetting adapters are set at a preset distance.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0019] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0020] Figure 1 A perspective view of a pipetting adapter according to an exemplary embodiment of the present invention is shown;

[0021] Figure 2 A cross-sectional view showing a pipetting adapter connected to a suction element according to an exemplary embodiment of the present invention is shown;

[0022] Figure 3 A perspective view of a pipetting apparatus according to an exemplary embodiment of the present invention is shown.

[0023] The components indicated by the reference numerals in the figures are as follows:

[0024] 1. Pipette adapter; 11. First end; 12. Second end; 121. First adapter part; 1211. First sealing part; 1212. First guide part; 1213. First limiting part; 122. Second adapter part; 1221. Second sealing part; 1222. Second guide part; 1223. Transition section; 13. Vent chamber; 2. Pipette; 21. Driving component; 22. Transmission component; 221. Lead screw; 222. Nut; 223. Connecting plate; 23. Mounting plate; 24. Slider; 3. Suction component; 31. First suction component; 32. Second suction component. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model more apparent, exemplary embodiments according to this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, and not all embodiments of this utility model. It should be understood that this utility model is not limited to the exemplary embodiments described herein. Based on the embodiments of this utility model described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of this utility model.

[0026] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0027] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0028] One embodiment of this utility model provides a pipetting adapter 1, which can be connected to pipettes 3 of different sizes, avoiding the need to set up multiple pipettes 2 adapted to pipettes 3 of different sizes. The pipetting adapter 1 according to an embodiment of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 2As shown, the first end 11 of the pipetting adapter 1 is connected to the pipetting member 2, and the second end 12 of the pipetting adapter 1 is connected to the aspirator 3. The pipetting member 2 is used to drive the aspirator 3 to complete the pipetting operation through the pipetting adapter 1. The second end 12 of the pipetting adapter 1 includes a first adapter portion 121 and a second adapter portion 122. The first adapter portion 121 is connected to the aspirator 3 having a first size, and the second adapter portion 122 is connected to the aspirator 3 having a second size. The first size is larger than the second size. The first adapter portion 121 has a first sealing portion 1211 and a first guiding portion 1212 arranged sequentially along the connection direction with the aspirator 3. The second adapter portion 122 has a second sealing portion 1221 and a second guiding portion 1222 arranged sequentially along the connection direction with the aspirator 3.

[0030] The first end 11 of the aforementioned pipetting adapter 1 can be connected to the pipetting member 2. The pipetting member 2 can drive the pipetting adapter 1 to move closer to the aspiration member 3, and the second end 12 of the pipetting adapter 1 is connected to the aspiration member 3. The pipetting member 2 and the pipetting adapter 1 can be connected by a plug-in connection or a threaded connection, etc., and this application does not make a specific limitation in this regard. A plug-in connection is preferred. Through the interference fit between the pipetting member 2 and the pipetting adapter 1, not only can the firmness of the connection between the two be guaranteed, but the connection steps are also simplified and the convenience of connection is improved.

[0031] The aforementioned pipette 2 can also draw liquid through the pipette adapter 1 and the aspirator 3. Specifically, the aspirator 3 can be a pipette tip, and the pipette adapter 1 can have a through-hole vent 13 formed along its length. One end of the vent 13 can be connected to the pipette 2, and the other end can be connected to the aspirator tip. The pipette 2 can draw air out of the aspirator tip through the vent 13, thereby reducing the air pressure inside the aspirator tip and allowing the liquid in the container to enter the aspirator tip under atmospheric pressure.

[0032] The first and second dimensions mentioned above can be represented as the radial dimensions of different suction components 3. It can be understood that when the length of the suction components 3 is the same, the larger the radial dimension of the suction component 3, the larger the capacity of the suction head.

[0033] The first adapter 121 of the aforementioned pipetting adapter 1 can be used to connect with a first aspirator 31 having a first size, and the second adapter 122 can be used to connect with a second aspirator 32 having a second size. Thus, the pipetting adapter 1 is compatible with aspirators 3 having both first and second sizes, significantly improving its practicality. In the following text, for simplicity, the aspirator 3 having the first size will be referred to as the first aspirator 31, and the aspirator 3 having the second size will be referred to as the second aspirator 32.

[0034] The first adapter 121 can be inserted into the first suction member 31. The first guide portion 1212 of the first adapter 121 can be closer to the first suction member 31 than the first sealing portion 1211. When the pipetting adapter 1 is inserted into the first suction member 31, the first guide portion 1212 can lead the first adapter 121 into the first suction member 31.

[0035] The first adapter 121 can protrude radially to form a first sealing part 1211. After the first guide 1212 is inserted into the first liquid-absorbing member 31 and continues to move a certain distance, the first sealing part 1211 can abut against the inner wall surface of the first liquid-absorbing member 31 and undergo elastic deformation, thereby sealing the gap between the first sealing part 1211 and the inner wall surface of the first liquid-absorbing member 31. In this way, not only can the connection between the first adapter 121 and the first liquid-absorbing member 31 be firmly guaranteed, but also the airtightness of the first liquid-absorbing member 31 can be guaranteed when air is drawn into the first liquid-absorbing member 31 through the venting chamber 13, preventing outside air from seeping into the first liquid-absorbing member 31 through the aforementioned gap, thereby disrupting the air pressure balance formed during the air intake process. Exemplarily, the first sealing part 1211 can be made of an elastic material, such as rubber or silicone, etc., and this application does not specifically limit it. It is understandable that since the structure of the second adapter 122 is the same as that of the first adapter 121, the second adapter 122 also has the above-mentioned beneficial effects, which will not be elaborated further here.

[0036] The present invention discloses a pipetting adapter 1. The first end 11 of the pipetting adapter 1 can be connected to a pipette 2. The second end 12 of the pipetting adapter 1 may include a first adapter portion 121 and a second adapter portion 122. The first adapter portion 121 can be connected to a first aspirator 31 of a first size, and the second adapter portion 122 can be connected to a second aspirator 32 of a second size. Thus, the pipetting adapter 1 can simultaneously adapt to two different sizes of aspirators 3, effectively improving its practicality, flexibility, and efficiency. When the pipetting adapter 1 is applied in molecular biology research and experiments, one pipetting adapter 1 can be connected to aspirators 3 of different sizes, avoiding the need for multiple pipettes 2 adapted to different sizes of aspirators 3. This effectively reduces the size of experimental equipment, as well as its manufacturing and maintenance costs. In addition, the first sealing part 1211 can ensure the sealing and firmness when the first adapter part 121 is connected to the first liquid suction member 31, and the first guide part 1212 can ensure the convenience and stability when the first adapter part 121 is connected to the first liquid suction member 31. Similarly, the second sealing part 1221 and the second guide part 1222 also have the above-mentioned beneficial effects, which will not be elaborated on here.

[0037] In some embodiments, such as Figure 1As shown, the first adapter 121 and the second adapter 122 are arranged sequentially along the direction of connection with the liquid suction member 3.

[0038] Specifically, the second adapter 122 can be connected below the first adapter 121, and the venting cavity 13 can sequentially pass through the first adapter 121 and the second adapter 122 along the connection direction with the suction member 3. It is understood that in practical applications, the pipetting adapter 1 can selectively connect to either the first suction member 31 or the second suction member 32, and cannot simultaneously connect to both suction members 3 of different sizes. It should be noted that... Figure 2 The illustration showing the pipetting adapter 1 connected to both types of suction components 3 is only for visual demonstration of the assembly state when the pipetting adapter 1 is connected to suction components 3 of different sizes, and does not represent the actual assembly state during use.

[0039] In the above embodiments, the first adapter 121 and the second adapter 122 can be arranged sequentially along the direction of connection with the aspirator 3. This ensures that the pipetting adapter 1 can be compatible with aspirators 3 of different sizes, while also simplifying the structure of the pipetting adapter 1 and effectively reducing the radial dimension of the pipetting adapter 1.

[0040] In some embodiments, such as Figure 1 As shown, the second adapter 122 is disposed at the end of the first adapter 121, and the axis of the first adapter 121 and the axis of the second adapter 122 are misaligned.

[0041] like Figure 2 As shown in the figure, the two pipetting adapters 1 can be arranged side by side to aspirate liquid in batches. Since the axes of the first adapter portion 121 and the second adapter portion 122 in a single pipetting adapter 1 can be misaligned, the distance between the two parallel second adapter portions 122 can be reduced when the two pipetting adapters 1 are arranged side by side. Therefore, when the distance between two containers holding liquid is small, the second adapter portions 122 of the two pipetting adapters 1 can be used to aspirate the liquid from the corresponding containers.

[0042] In the above embodiments, when it is necessary to use two pipetting adapters 1 for batch pipetting operations, the axis of the first adapter 121 can be misaligned with the axis of the second adapter 122, thereby reducing the distance between the two second adapters 122. This allows the two pipetting adapters 1 to be adapted to two containers containing liquid that are close together, avoiding the situation where the distance between the two second adapters 122 is too large and they cannot be inserted into the containers that are close together at the same time, effectively improving the practicality of the pipetting adapters 1.

[0043] In some embodiments, the radial dimension of the first sealing portion 1211 is greater than the radial dimension of the first guide portion 1212, and / or the radial dimension of the second sealing portion 1221 is greater than the radial dimension of the second guide portion 1222.

[0044] In the above embodiments, the first guide portion 1212 can have a relatively small radial dimension so that it can guide the first adapter portion 121 into the first liquid-absorbing member 31. The radial dimension of the first sealing portion 1211 can be larger than that of the first guide portion 1212. Thus, after the first adapter portion 121 and the first liquid-absorbing member 31 are assembled, the first sealing portion 1211 can form a tight interference fit with the inner wall surface of the first liquid-absorbing member 31, thereby preventing external air from seeping into the first liquid-absorbing member 31, ensuring the stability of the air pressure inside the first liquid-absorbing member 31, and ensuring the normal functioning of the liquid absorption and drainage functions of the first liquid-absorbing member 31. Similarly, the second sealing portion 1221 and the second guide portion 1222 can have the same beneficial effects as described above, and will not be elaborated further here.

[0045] In some embodiments, such as Figure 1 As shown, the first guide portion 1212 is formed at the end of the first adapter portion 121 away from the first end 11, and the second guide portion 1222 is formed at the end of the second adapter portion 122 away from the first end 11.

[0046] In the above embodiment, the first guide portion 1212 can be formed at the end of the first adapter portion 121 away from the first end 11. Thus, when the first adapter portion 121 is connected to the first liquid-absorbing member 31, the first guide portion 1212 can be inserted into the interior of the first liquid-absorbing member 31 first, thereby playing a positioning and guiding role. Even if there is a slight alignment deviation between the first adapter portion 121 and the first liquid-absorbing member 31, the first guide portion 1212 can quickly adjust the deviation, guiding the first sealing portion 1211 to accurately enter the first liquid-absorbing member 31, effectively improving the smoothness of the connection between the first adapter portion 121 and the first liquid-absorbing member 31. Similarly, the second sealing portion 1221 can have the same beneficial effects as described above, and will not be elaborated further here.

[0047] In some embodiments, such as Figure 1 As shown, a first limiting part 1213 is provided between the first sealing part 1211 and the first guiding part 1212. The first limiting part 1213 is used to limit the displacement of the pipetting adapter 1 in the direction of the pipetting member 2.

[0048] The radial dimension of the first limiting part 1213 can be greater than the radial dimension of the first guide part 1212 and smaller than the radial dimension of the first sealing part 1211. A step portion can be formed on the inner sidewall of the first liquid suction member 31. When the first adapter part 121 is inserted into the first liquid suction member 31, the first limiting part 1213 can abut against the step portion to prevent the first adapter part 121 from continuing to move in the direction connected to the first liquid suction member 31.

[0049] In an embodiment not shown, a second limiting part may also be provided between the second sealing part 1221 and the second guide part 1222, which can limit the displacement of the second adapter part 122 moving in the direction of the second pipette 2.

[0050] In the above embodiments, the first limiting part 1213 can precisely limit the depth of the first adapter part 121 inserted into the first suction member 31, ensuring that the preset position is reached every time the connection is made, effectively improving the consistency of the connection. Specifically, on the one hand, it can avoid the first sealing part 1211 not being tightly fitted to the inner wall surface of the first suction member 31 due to the insertion depth being too shallow, thereby affecting the suction effect of the pipette 2. On the other hand, it can also avoid the situation where the first suction member 31 is squeezed due to the insertion depth being too deep, or even the first suction member 31 is damaged.

[0051] In some embodiments, such as Figure 1 As shown, the second adapter 122 further includes a transition section 1223 located between the second sealing section 1221 and the second guide section 1222. The transition section 1223 has at least one abutting surface (not shown in the figure) for abutting against the inner wall surface of the liquid suction member 3 to limit the relative rotation of the second adapter 122 and the liquid suction member 3.

[0052] When the inner wall surface of the second liquid-absorbing member 32 is a non-circular structure (e.g., square, polygonal, irregularly shaped surface with protrusions, etc.), when one of the second adapter 122 and the second liquid-absorbing member 32 is subjected to rotational force, the contact surface can abut against the inner wall surface of the second liquid-absorbing member 32, thereby preventing the second adapter 122 or the second liquid-absorbing member 32 from rotating in the circumferential direction.

[0053] The number of the aforementioned contact surfaces can be multiple. Taking two contact surfaces as an example, the two contact surfaces can be formed alternately on the opposite side walls of the transition section 1223. In this way, the second adapter 122 can be inserted into the second liquid suction member 32 by clamping the contact surfaces, which effectively improves the convenience of assembly.

[0054] It is understood that the first sealing part 1211 and the first guide part 1212 of the first adapter part 121 may also have a transition section 1223 and an abutting surface on the transition section 1223, and this application does not specifically limit this.

[0055] In the above embodiment, the contact surface on the transition section 1223 can be tightly fitted with the inner wall surface of the second liquid suction member 32 to form a circumferential limit. This can accurately fix the circumferential position of the second adapter 122 in the second liquid suction member 32, preventing the second liquid suction member 32 from rotating due to vibration or external force, which would lead to poor sealing between the second sealing part 1221 and the second liquid suction member 32, and thus cause problems such as liquid leakage and inaccurate liquid suction. This effectively improves the reliability of the connection between the second adapter 122 and the second liquid suction member 32.

[0056] In some embodiments, there are multiple first sealing portions 1211, which are spaced apart along the axial direction of the first adapter portion 121; and / or, there are multiple second sealing portions 1221, which are spaced apart along the axial direction of the second adapter portion 122.

[0057] Specifically, in the direction connected to the first liquid suction member 31, the radial dimensions of the plurality of first sealing parts 1211 can be the same, so that the plurality of first sealing parts 1211 can form a uniform interference fit with the inner wall surface of the first liquid suction member 31, ensuring that the sealing effect of each first sealing member is stable and consistent, and greatly reducing the risk of sealing failure.

[0058] Specifically, along the direction connected to the first liquid-absorbing member 31, the radial dimensions of the plurality of first sealing portions 1211 can gradually decrease. In this way, when the first fitting portion 121 is inserted into the first liquid-absorbing member 31, the first sealing portion 1211 with a smaller radial dimension can enter the first liquid-absorbing member 31 first, thereby playing a guiding role. Subsequently, the first sealing portion 1211 with a slightly larger dimension can gradually fit into the inner wall surface of the first liquid-absorbing member 31, avoiding the situation where the first liquid-absorbing member 31 is damaged due to multiple first sealing portions 1211 with the same radial dimension simultaneously squeezing the inner wall surface of the first liquid-absorbing member 31.

[0059] In the above embodiments, a plurality of first sealing portions 1211 are spaced apart along the axial direction of the first adapter portion 121, thus forming a multi-layer sealing structure between the first adapter portion 121 and the first liquid-absorbing member 31. Even if a gap appears between one of the first sealing portions 1211 and the first liquid-absorbing member 31 due to wear, impurity jamming, or slight deformation, the remaining first sealing portions 1211 can still prevent the infiltration of external air, effectively reducing the risk of seal failure and significantly improving the reliability of the first adapter portion 121. Similarly, a plurality of second sealing portions 1221 spaced apart along the axial direction of the second adapter portion 122 can also have the same beneficial effects as described above, and will not be elaborated further here.

[0060] According to another aspect of this utility model, such as Figure 3 As shown, a pipetting device is also provided, including a pipetting element 2, a suction element 3, and a pipetting adapter 1 as described above. The pipetting element 2 is used to connect with the pipetting adapter 1 so that the suction element 3 can be moved by the pipetting adapter 1.

[0061] The pipetting device of this utility model includes the pipetting adapter 1 as described above. Since the pipetting adapter 1 has the beneficial effects described above, the pipetting device including the pipetting adapter 1 as described above will also necessarily have the beneficial effects described above.

[0062] In some embodiments, such as Figure 3 As shown, the pipette 2 includes a drive component 21 and a transmission component 22. The pipette adapter 1 is connected to the drive component 21 through the transmission component 22. The drive component 21 is used to drive the pipette adapter 1 to move linearly through the transmission component 22.

[0063] Specifically, the aforementioned transmission component 22 may include a lead screw 221 and a nut 222. The lead screw 221 can be connected to the driving end of the driving component 21, and the nut 222 can be connected to the pipetting adapter 1. The nut 222 can be sleeved on the lead screw 221 so that the pipetting adapter 1 can be connected to the driving component 21. Thus, when the driving component 21 drives the lead screw 221 to rotate, the nut 222 can move linearly along the length of the lead screw 221.

[0064] The drive unit 21 may be any type of drive component known in the art or that may appear in the future, including but not limited to motor drive unit 21, cylinder drive unit 21 or electric cylinder drive unit 21, and this application does not make any specific limitation in this regard.

[0065] In the above embodiments, the driving component 21 can drive the pipetting adapter 1 to move linearly through the transmission component 22, so that the aspirator 3 connected to the pipetting adapter 1 can be moved above the container containing liquid to perform pipetting operations. This not only greatly shortens the time cost of a single pipetting operation, but also enables the pipetting adapter 1 to have the ability to operate continuously, thus adapting to automated production or experimental processes in a production line, effectively improving the automation level and efficiency of pipetting operations.

[0066] In some embodiments, such as Figure 3 As shown, the pipette 2 also includes a mounting plate 23, a drive component 21 is disposed on the mounting plate 23, the mounting plate 23 is provided with a sliding groove (not shown in the figure due to angle issues), and the transmission component 22 is provided with a slider 24 adapted to the sliding groove.

[0067] The aforementioned transmission component 22 may also include a connecting plate 223, which may be mounted on the lead screw 221 and connected to the nut 222. When the driving component 21 drives the lead screw 221 to rotate, the nut 222 may drive the connecting plate 223 to move linearly along the length of the lead screw 221. The connecting plate 223 may be provided with a slider 24 that is compatible with the slide groove.

[0068] In the above embodiment, the driving component 21 can be fixedly mounted on the mounting plate 23, and the pipetting adapter 1 can be movably mounted on the mounting plate 23 via the transmission component 22. Thus, the mounting plate 23 can serve as a carrier, linking the movement relationship between the driving component 21 and the pipetting adapter 1. Furthermore, the sliding connection between the groove and the slider 24 ensures smooth movement of the pipetting adapter 1, effectively guaranteeing the stability and smoothness of its movement.

[0069] In some embodiments, such as Figure 3 As shown, there are multiple pipetting adapters 1, and the second adapter parts 122 of two adjacent pipetting adapters 1 are arranged at a preset interval.

[0070] Taking two pipetting adapters 1 as an example, one pipetting adapter 1 can be fixedly installed, while the other can move linearly under the drive of the pipetting element 2, thereby allowing a preset distance between the second adapter portions 122 of the two pipetting adapters 1. Alternatively, the two pipetting adapters 1 can be connected to corresponding pipetting elements 2 respectively, so that they can move towards each other under the drive of the pipetting element 2, thereby allowing a preset distance between the second adapter portions 122 of the two pipetting adapters 1.

[0071] The preset spacing can be greater than or equal to 9 millimeters (mm), for example, 9mm, 10mm, 12mm, 14mm, 15mm, etc.

[0072] In the above embodiments, the second adapters 122 of two adjacent pipetting adapters 1 can be set at a preset distance. In this way, when performing batch pipetting operations, the preset distance can match the distance of most standard containers on the market, eliminating the need to frequently adjust the position of the pipetting adapters 1 and effectively improving the compatibility and efficiency of the pipetting equipment.

[0073] Although exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above exemplary embodiments are merely illustrative and are not intended to limit the scope of the invention. Various changes and modifications can be made therein by those skilled in the art without departing from the scope and spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as claimed in the appended claims.

[0074] For ease of description, the term "connection" may be used herein to describe the relationship between one or more elements or features shown in the figure and other elements or features. It should be understood that "connection" may include direct connections or indirect connections via other elements or features, and this document is intended to encompass all such cases.

[0075] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0076] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0077] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipetting adapter, characterized in that, The first end of the pipetting adapter is connected to the pipetting element, and the second end of the pipetting adapter is connected to the aspirator. The pipetting element is used to drive the aspirator to complete the pipetting operation through the pipetting adapter. The second end of the pipetting adapter includes a first adapter portion and a second adapter portion. The first adapter portion is connected to the aspirator having a first size, and the second adapter portion is connected to the aspirator having a second size. The first size is larger than the second size. The first adapter has a first sealing part and a first guiding part arranged sequentially along the connection direction with the liquid suction member, and the second adapter has a second sealing part and a second guiding part arranged sequentially along the connection direction with the liquid suction member.

2. The pipetting adapter according to claim 1, characterized in that, The first adapter and the second adapter are arranged sequentially along the direction of connection with the liquid suction member.

3. The pipetting adapter according to claim 2, characterized in that, The second adapter is disposed at the end of the first adapter, and the axis of the first adapter and the axis of the second adapter are misaligned.

4. The pipetting adapter according to claim 1, characterized in that, The radial dimension of the first sealing part is greater than the radial dimension of the first guide part, and / or the radial dimension of the second sealing part is greater than the radial dimension of the second guide part.

5. The pipetting adapter according to claim 1, characterized in that, The first guide portion is formed at the end of the first adapter portion away from the first end, and the second guide portion is formed at the end of the second adapter portion away from the first end.

6. The pipetting adapter according to claim 1, characterized in that, A first limiting part is provided between the first sealing part and the first guiding part, and the first limiting part is used to limit the displacement of the pipetting adapter in the direction of the pipetting element.

7. The pipetting adapter according to claim 1, characterized in that, The second adapter further includes a transition section located between the second sealing portion and the second guide portion, the transition section having at least one abutting surface for abutting against the inner wall surface of the liquid suction member to limit the relative rotation of the second adapter and the liquid suction member.

8. The pipetting adapter according to claim 1, characterized in that, The first sealing part is a plurality of such parts, which are spaced apart along the axial direction of the first adapter; and / or, the second sealing part is a plurality of such parts, which are spaced apart along the axial direction of the second adapter.

9. A pipetting device, characterized in that, It includes a pipetting element, a suction element, and a pipetting adapter as described in any one of claims 1 to 8, wherein the pipetting element is used to connect with the pipetting adapter to drive the suction element to move via the pipetting adapter.

10. The pipetting apparatus according to claim 9, characterized in that, The pipetting device includes a driving component and a transmission component. The pipetting adapter is connected to the driving component through the transmission component. The driving component is used to drive the pipetting adapter to move linearly through the transmission component.

11. The pipetting apparatus according to claim 10, characterized in that, The pipetting device also includes a mounting plate, the driving component is disposed on the mounting plate, the mounting plate is provided with a sliding groove, and the transmission component is provided with a slider adapted to the sliding groove.

12. The pipetting apparatus according to claim 10, characterized in that, There are multiple pipetting adapters, and the second adapter portions of two adjacent pipetting adapters are set at a preset distance.

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