Pipettor shell, pipettor and pipettor set

Abstract

The utility model relates to the technical field of laboratory equipment, and particularly discloses a pipettor shell, a pipettor and a pipettor set. The pipettor shell comprises a main shell, a rear cover and a fixing sleeve piece, a mounting opening is formed in the main shell, and the rear cover can cover the mounting opening; the main shell comprises a mounting cavity, and the rear cover is matched with the mounting cavity to restrain the capacity adjusting and calibrating suite; a clamping block is arranged at one end of the rear cover and used for being clamped with the inner wall of the main shell to form limiting, and a first limiting part is arranged on the inner wall of the rear cover and used for being clamped with a second limiting part on the adjusting kit to fix the state of the capacity adjusting and calibrating kit; the fixing sleeve piece is arranged at the other end, away from the clamping block, of the rear cover and controls the fixing state between the rear cover and the main shell. According to the pipettor shell disclosed by the utility model, a user can verify the maintenance condition of the pipettor in a false assembly state, so that the repeated complicated disassembly and assembly of the pipettor are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory equipment, in particular to a pipette housing, a pipette and a pipette set thereof. Background Art

[0002] A pipette is a laboratory instrument used to precisely transfer small volumes of liquid. It is widely used in fields such as biochemistry, molecular biology, medical research, and clinical diagnostics. Some major experimental projects require precise handling of liquids such as pharmaceuticals using a pipette. Therefore, high accuracy and precision are essential.

[0003] The patent with application number 202210757750.8 provides a pipetting device, which has a displacement device with a displacement device and a displacement shell, and an adjustment device for changing the stroke of the displacement device. The stroke of the displacement device can be adjusted and the corresponding adjustment value can be displayed with the aid of an adjustment display. In the use state, the adjustment device is coupled to the volume display with the aid of a coupling device and decoupled from the adjustment display, while in the adjustment state, the adjustment device is coupled to the adjustment display and decoupled from the volume display. In addition, the pipetting device involved in this patent has an adjustment display for displaying the adjustment value of the stroke of the displacement device. The adjustment display can be adjusted in the adjustment state, and it is fixed in the use state.

[0004] The pipetting device provided in the above patent is a pipette, which can be calibrated more conveniently during daily use. However, during the long-term use of the pipette, in addition to calibration, it needs to participate in maintenance work after disassembly, and even needs to be disassembled for repair work in case of damage. After completing the repair and maintenance, on the one hand, it is necessary to check whether the pipette has been repaired and can be used normally, and on the other hand, it is necessary to calibrate the disassembled pipette to ensure that its accuracy meets the requirements.

[0005] With existing pipette structures, all parts must be assembled before the pipette can be verified for proper operation. If the pipette fails to trigger properly, it must be disassembled for repair. Furthermore, the addition of small parts like springs complicates the assembly process, making subsequent repairs and maintenance more difficult. Utility Model Content

[0006] The present invention provides a pipette housing that, when used, can maintain the entire pipette in a dummy state during verification after maintenance. That is, the housing is not in a completely securely assembled state, but can restrict internal components to their normal working positions, ensuring that the pipette can be used normally for verification within a short period of time. Furthermore, in the dummy state, the housing can be easily reopened for repairs, etc., until the maintenance work is completed.

[0007] The utility model is realized through the following technical solutions:

[0008] A pipette housing is capable of accommodating and installing a capacity adjustment calibration kit. The capacity adjustment calibration kit is switched between an adjustment state and a calibration state by relative movement between the adjustment kit and the capacity adjustment cylinder. The pipette housing includes a main housing, a rear cover, and a fixing kit. The main housing is provided with an installation opening. When the rear cover is fixedly installed on the main housing, it covers the installation opening. The main housing includes an installation chamber for installing the capacity adjustment calibration kit. When the rear cover is fixedly installed on the main housing, it cooperates with the installation chamber to complete the adjustment of the capacity adjustment calibration kit. Installation limit, wherein a margin space is provided in the installation chamber to conform to the displacement of the adjustment kit; a locking block is provided at one end of the back cover for locking with the inner wall of the main shell to form a limit, and a first limiting portion is provided on the inner wall of the back cover for locking with the second limiting portion on the adjustment kit to fix the state of the capacity adjustment calibration kit; the fixing kit controls the fixing state between the back cover and the main shell at the other end of the back cover away from the locking block, so that the fixing kit and the locking block jointly control the back cover to be fixedly installed on the main shell.

[0009] As a further improvement of the present invention, a limiting portion is provided on the installation opening for engaging with the rear cover so that the rear cover is fixedly covered on the installation opening.

[0010] As a further improvement of the present invention, the fixing kit includes a fixing through hole provided on the back cover, a fixing hole provided on the main shell, and a fixing member. When the back cover is fixedly installed on the main shell, the fixing member is installed in the fixing hole after passing through the fixing through hole.

[0011] As a further improvement of the present invention, a limiting concave surface is provided on the rear cover, and the limiting concave surface conforms to the fingers of the user when the pipette is held, and the fixing hole is provided on the limiting concave surface.

[0012] In a second aspect, the present invention provides a pipette comprising any one of the above-mentioned pipette housings and the volume adjustment calibration kit, wherein the top of the adjustment kit is connected to the adjustment knob.

[0013] As a further improvement of the present invention, it also includes a digital display kit placed in the main shell, the digital display kit includes a driving gear and a digital display module, the driving gear is transmission-connected to the capacity adjustment calibration kit, and is used to drive the digital display module to display different capacity data.

[0014] As a further improvement of the present invention, the capacity adjustment cylinder includes a cylinder body and a first external tooth arranged on the top of the cylinder body; the adjustment kit includes a sleeve, a first internal tooth arranged on the top of the sleeve and a second external tooth arranged on the bottom of the sleeve; the sleeve is sleeved outside the capacity adjustment cylinder so that the first external tooth is engaged with the first internal tooth, and the second external tooth is engaged with the drive gear, wherein the height of the first internal tooth is less than or equal to the displacement of the adjustment kit when the capacity adjustment calibration kit switches state.

[0015] As a further improvement of the present invention, a drive kit is also included, which includes a pressing sleeve and a warning sleeve sleeved on the top of the pressing sleeve, and a warning gap is formed between the outer wall of the pressing sleeve and the outer wall of the warning sleeve.

[0016] As a further improvement of the present invention, the bottom of the pipette also includes a mounting connection portion for mounting a pipette tip kit.

[0017] In a third aspect, the present invention provides a pipette set comprising any one of the above-mentioned pipettes and a pipette tip.

[0018] When using a pipette, the user first grasps the housing with four fingers, excluding the thumb, and then uses the thumb to press down on the actuator assembly on the top to perform operations such as aspiration. When verifying the pipette's repair status, the above steps must be repeated to verify that the repaired pipette is functioning properly.

[0019] The beneficial effect of the present invention is that, under the housing structure of the present invention, the back cover can be preliminarily fixed to the main housing by the snap-fit ​​block, so that the back cover is not easy to slide relative to the main housing. In the pipette maintenance verification stage, after the user holds the pipette, external force will drive the back cover to no longer move away from the main housing and fall off. Therefore, in the above-mentioned usage scenario, although the other end of the back cover has not yet been fixed to the main housing using the fixing kit, the back cover has already achieved a temporary combination effect with the main housing under the cooperation of external force and the snap-fit ​​block, that is, a pseudo-group state has been formed. During this period, the various parts in the housing are restricted by the main housing and the back cover and are installed and fixed in the normal position, such as the capacity adjustment calibration kit is placed in the installation chamber, so that the pipette can be used normally. That is, after using the pipette housing in the present invention, the verification work of the pipette usage can be carried out in the pseudo-group state.

[0020] If the pipette is subsequently found to be out of repair and unable to function properly, the fixing kit has not yet been installed. Once the external grip is lost, the user can still easily remove the back cover to adjust the internal parts and perform further repairs.

[0021] At the same time, in the present invention, the first limiter inside the rear cover can engage with the adjustment kit to fix the volume adjustment calibration kit in the adjustment state or calibration state. Therefore, after the pipette maintenance verification phase is completed, the rear cover can be directly opened, the volume adjustment calibration kit can be adjusted to the calibration state, and then the housing can be returned to the pre-assembled state and the pipette calibration work can be carried out. After the calibration work is also completed, the rear cover can be opened to adjust the volume adjustment calibration kit back to the adjustment state, and finally the housing can be fixed and assembled using the fixing kit.

[0022] Therefore, after using the pipette housing of the present invention, the relevant steps in the later stage of pipette repair and maintenance work can be greatly optimized, and repeated complicated disassembly and assembly of the pipette can be avoided, thereby reducing the overall workload of the repair and maintenance verification work link and the calibration link, and reducing the occurrence of parts damage caused by multiple disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following drawings are provided for use in conjunction with preferred embodiments of the present invention to help understand the purpose and advantages of the present invention, wherein:

[0024] Figure 1 The front view of the pipette structure when the volume adjustment calibration kit is in the adjustment state;

[0025] Figure 2 for Figure 1 Structural cross-section at X-X';

[0026] Figure 3 The front view of the pipette structure when the volume adjustment calibration kit is in the calibration state;

[0027] Figure 4 for Figure 3 Structural cross-section at YY in the middle;

[0028] Figure 5 A schematic diagram of the structural relationship between the components in the main shell;

[0029] Figure 6 This is a schematic diagram of the structural relationship between the various components in the main shell when the back cover is removed.

[0030] in, Figure 5 In order to clearly show the matching and connection relationship between the various components, the main shell structure is hidden. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below based on the accompanying drawings and implementation examples.

[0032] In this specification, directional terms such as up, down, left, right, front, back, front, back, top, and bottom, which are mentioned or may be mentioned, are defined relative to the configurations shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may vary depending on the location and usage of the component. Therefore, these or other directional terms should not be construed as restrictive. Example 1

[0033] This embodiment provides a pipette, which includes a volume adjustment calibration kit A01. The volume adjustment calibration kit A01 includes an adjustment kit A01-1 and a volume adjustment cylinder A01-2. The adjustment kit A01-1 can move relative to the volume adjustment cylinder A01-2 to enable the volume adjustment calibration kit A01 to switch between an adjustment state and a calibration state. In this embodiment, as shown in FIG. Figures 1 to 4 As shown, the top of the capacity adjustment calibration kit A01 is connected to the adjustment knob A02, so the user can complete the adjustment and calibration of the pipette capacity by turning the adjustment knob A02.

[0034] The pipette housing contains and constrains the fixed volume adjustment calibration kit A01 and other components. The pipette housing mainly includes a back cover 2, a main housing 1 and a fixing kit 3. Figures 5 and 6As shown, the main housing 1 houses the remaining components of the pipette, including the volume adjustment and calibration kit A01. It has a mounting opening 101 to facilitate access and installation of internal components. The rear cover 2 covers and closes the mounting opening 101, securing the volume adjustment and calibration kit A01 and other components within the pipette housing.

[0035] In this embodiment, a snap-fit ​​block 201 is provided at the bottom end of the rear cover 2. When the rear cover 2 is mounted on the main housing 1, the snap-fit ​​block 201 contacts and engages with the inner wall of the main housing 1, thereby enabling a preliminary relative position fixation between the rear cover 2 and the main housing 1. Figure 3 For example, when the rear cover 2 is initially fixed to cover the mounting opening 101 by the engaging block 201, it is not easy to slide up and down relative to the main housing 1. At this time, the pipette housing can be in a pre-assembled state, that is, the pipette housing has not yet been fully assembled, but with the assistance of external forces such as the user's grip, the pipette housing can limit and restrain the internal components, ensuring that the pipette can perform some normal functions in the pre-assembled state, such as aspiration.

[0036] In this embodiment, the fixing kit 3 is arranged at the top of the back cover 2, which can realize the relative fixation between the back cover 2 and the main shell 1, that is, it can cooperate with the snap block 201 to realize the complete installation and fixation between the back cover 2 and the main shell 1.

[0037] Inside the main housing 1, there is an installation chamber for installing the capacity adjustment calibration kit A01, such as Figure 2 and 4 As shown, when the back cover 2 is fixedly mounted on the main housing 1, the mounting chamber and the back cover 2 cooperate with each other to form an enclosure for the capacity adjustment calibration kit A01, so that the capacity adjustment calibration kit A01 is installed and limited in the housing. But at the same time, a margin space needs to be provided in the mounting chamber to accommodate the displacement of the adjustment kit A01-1. In this embodiment, an opening is formed on the top of the mounting cavity to accommodate the upward sliding extension of the adjustment kit A01-1. Therefore, in order to ensure that the position of the capacity adjustment calibration kit A01 in the pipette housing will not shift when it is in the adjustment state, a first limiting portion 202 is provided on the inner wall of the back cover 2. As shown Figure 2 As shown, the first limiting portion 202 can form a snap-fit ​​fixation with the second limiting portion A01-1a on the adjustment kit A01-1, so as to cooperate with the installation chamber and the inner wall of the back cover 2 to limit the position of the capacity adjustment calibration kit A01 when the capacity adjustment calibration kit A01 is in the adjustment state.

[0038] After the pipette has been repaired or maintained on its internal parts, it is necessary to first verify its repair and maintenance status, that is, to check whether the pipette can perform normal liquid aspiration, etc. If it can perform normal liquid aspiration, the calibration of the liquid aspiration volume can be performed. Under the pipette structure of this embodiment, when performing the maintenance verification work, first, it is necessary to keep the installation opening 101 of the main housing 1 facing upward, and the back cover 2 is preliminarily fixed to the main housing 1 through the locking block 201 to complete the covering of the installation opening 101. The user can then hold the pipette housing according to the conventional pipette usage method. At this time, since the back cover 2 has been preliminarily fixed and is in a pseudo-assembly state, the pressure generated during the grip will make the back cover 2 always fit and fix on the main housing 1 without the two separating. Accordingly, at this time, the back cover 2 and the main housing 1 can form a limit and constraint on the internal capacity adjustment calibration kit A01 and other parts, so that the parts are in the normal operating position. Therefore, the pipette can be used normally for a short time to verify the repair and maintenance effect.

[0039] If it is found during the verification process that the pipette cannot perform normal operations such as aspiration, you can stop holding it and keep the installation opening 101 facing upwards, then first lift the end of the rear cover 2 away from the locking block 201, and then remove the rear cover 2 to further repair the parts inside the pipette housing.

[0040] If, during the verification process, it is found that the pipette can perform normal aspiration and other operations, the rear cover 2 can be removed with the mounting opening 101 facing upwards. The adjustment kit A01-1 can then be moved to switch the volume adjustment calibration kit A01 to the calibration state. The rear cover 2 and the main housing 1 can then be reassembled to form a pseudo-assembly state using the locking block 201 to perform calibration. In the two states of the volume adjustment calibration kit A01, the first stopper 202 on the rear cover 2 and the second stopper A01-1a on the adjustment kit A01-1 will form different locking relationships. Figure 2 As shown in FIG, when the capacity adjustment calibration kit A01 is in the adjustment state, the first limit portion 202 will limit the adjustment kit A01-1 from sliding upward; and as shown in FIG. Figure 4 As shown in FIG, when the capacity adjustment calibration kit A01 is in the calibration state, the first limit portion 202 will limit the adjustment kit A01-1 so that it does not fall and returns to the adjustment state.

[0041] After the pipette's maintenance verification and calibration are complete and no further adjustments are required to the pipette's internal structure, the user can open the rear cover 2 and return the volume adjustment calibration kit A01 to its adjusted state. The user can then preliminarily install the rear cover 2 and secure the rear cover 2 to the main housing 1 using the securing kit 3. At this point, the engaging block 201 and the securing kit 3 will jointly prevent the rear cover 2 from being detached from the main housing 1, thereby completing the formal assembly of the pipette housing. The securing kit 3 can be any component or kit, such as a latch kit or a lock kit, that can achieve relative fixation between the rear cover 2 and the main housing 1 only when in a fixed or locked state.

[0042] Preferably, if Figure 6 As shown, a limiting portion 102 is provided on the mounting opening 101 so that the back cover 2 can be fixedly covered on the mounting opening 101. This structure ensures that when in the pseudo-assembly state, it cooperates with the locking block 201 so that the back cover 2 will no longer slide relative to the main shell 1. In the pseudo-assembly state of this structure, the back cover 2 may only fall away from the main shell 1, and the external force brought by the grip will drive the back cover 2 to be tightly attached to the main shell 1, so this structure can further ensure the stability of the pseudo-assembly state. The limiting portion 102 can be a structure such as a protrusion or a groove provided around the mounting opening 101. At this time, a corresponding groove or protrusion will be provided inside the back cover 2 for engaging with the limiting portion 102 to achieve a fixing effect. The limiting portion 102 can also adopt a limiting block structure arranged in the installation opening 101, so that the back cover 2 can be embedded in the installation opening 101 until it conflicts with such a limiting block. At this time, the wall surface of the main shell 1 near the installation opening 101 will conflict with the back cover 2 and limit its sliding displacement.

[0043] Preferably, if Figure 4 As shown, the fixing kit 3 includes a fixing through-hole 301 provided on the rear cover 2, a fixing hole 302 provided on the main housing 1, and a fixing member 303. Only when the rear cover 2 is fully secured to the main housing 1 will the fixing member 303 pass through the fixing through-hole 301 and then install in the fixing hole 302, completing the formal assembly. Therefore, in the pre-assembly state, the user can choose not to insert the fixing member 303, thereby disabling the fixing kit 3's fixing effect. The fixing member 303 can be secured in the fixing hole 302 by threaded fastening, expansion fastening, or other methods.

[0044] Preferably, if Figure 4As shown, the rear cover 2 is provided with a limiting concave surface 203, which conforms to the user's fingers when the pipette is held, and the fixing hole 302 is provided at the limiting concave surface 203. With this structure, the point where the fixing member 3 actually secures the rear cover 2 partially coincides with the point where the user applies force when holding the pipette. This ensures that the force exerted by the user's fingers when holding the pipette can replace the fixing member 3's securing effect on the rear cover 2 and the main housing 1, ensuring that the rear cover 2 and the main housing 1 can cooperate together in the pre-assembled state to achieve the effect of restraining and limiting the internal components.

[0045] Preferably, if Figure 5 As shown, the pipette includes a digital display assembly A03 disposed within the main housing 1. The digital display assembly A03 includes a drive gear A03-1 and a digital display module A03-2. The drive gear A03-1 is in transmission connection with the digital display module A03-2, so that when the user rotates the adjustment knob A02, the drive gear A03-1 is driven, thereby causing the volume data displayed on the digital display module A03-2 to change.

[0046] Preferably, if Figure 2 、 Figure 4 and Figure 5 As shown, the capacity adjustment cylinder A01-2 includes a cylinder body A01-2a and a first outer tooth A01-2b provided at the top of the cylinder body A01-2a; the adjustment kit A01-1 includes a sleeve A01-1b, a first inner tooth A01-1c provided at the top of the sleeve A01-1b, and a second outer tooth A01-1d provided at the bottom of the sleeve A01-1b. Figure 2 As shown in , when the capacity adjustment calibration kit A01 is in the adjustment state, the sleeve A01-1b is mounted on the outside of the capacity adjustment cylinder A01-2, and the first outer tooth A01-2b is engaged with the first tooth, and the second outer tooth A01-1d is engaged with the drive gear A03-1. At this time, if the user turns the adjustment knob A02, the cylinder A01-2a and the drive gear A03-1 can be driven to rotate at the same time, that is, the actual amount of liquid aspirated by the pipette and the digitally displayed amount of liquid aspirated are changed synchronously. In this embodiment, the height of the first inner tooth A01-1c in the adjustment kit A01-1 is less than or equal to the displacement of the adjustment kit A01-1 relative to the capacity adjustment cylinder A01-2 in the installation chamber, so as shown in FIG. Figure 4 As shown, when the adjustment assembly A01-1 is moved to the calibration state, the first inner teeth A01-1c separate from the first outer teeth A01-2b. This allows the user to rotate the adjustment knob A02 only to drive the drive gear A03-1. Therefore, when performing calibration, the actual aspirated volume of the pipette should be measured first. Then, in the calibration state, the digitally displayed aspirated volume should be adjusted until the two values ​​match to achieve the desired calibration result.

[0047] Preferably, if Figures 1 and 2 As shown, the pipette also includes a drive kit A04, which includes a pressing sleeve A04-1 and a warning sleeve A04-2 sleeved on the top of the pressing sleeve A04-1. A prompt gap A04-3 is formed between the outer wall of the pressing sleeve A04-1 and the outer wall of the warning sleeve A04-2 to remind the user of the degree of pressure and the discharge situation. Usually, there are two sections of the downward pressure stroke during the use of the pipette. At the end of the first section, the absorbed liquid is basically discharged, and continuing to press can enter the second section of the stroke to ensure that the absorbed liquid is emptied. Therefore, when the prompt gap A04-3 moves down until it is level with the top of the adjustment knob A02, the user is reminded through a visual effect that the first section of the stroke has been completed. The user can choose whether to continue pressing down to trigger the second section of the stroke as needed. When transferring viscous liquids, the second section of the stroke can be promoted to drain the liquid as much as possible. Example 2

[0048] A pipette is provided in this embodiment, and a mounting connection portion is provided at the bottom of the pipette to enable installation of a corresponding model of a tip kit. That is, the pipette provided in this embodiment has a split structure, and when the tip kit is damaged, the tip kit can be disassembled and replaced. Example 3

[0049] This embodiment provides a pipette set, which includes a pipette and a pipette tip in Example 1. In this embodiment, the pipette tip is a disposable plastic pipette tip that can be movably mounted on the bottom of the pipette.

[0050] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation cases of the present invention.

Claims

1. A pipette housing capable of accommodating and installing a volume adjustment calibration kit (A01), wherein the volume adjustment calibration kit (A01) switches between an adjustment state and a calibration state by relative movement between an adjustment kit (A01-1) and a volume adjustment cylinder (A01-2), the pipette housing being characterized in that it comprises a main housing (1), a rear cover (2), and a fixing kit (3); The main shell (1) is provided with a mounting opening (101), and when the rear cover (2) is fixedly mounted on the main shell (1), the mounting opening (101) is covered; the main shell (1) includes a mounting chamber for mounting the capacity adjustment calibration kit (A01), and when the rear cover (2) is fixedly mounted on the main shell (1), it cooperates with the mounting chamber to complete the installation limit of the capacity adjustment calibration kit (A01), wherein a margin space is provided in the mounting chamber to conform to the displacement of the adjustment kit (A01-1); One end of the rear cover (2) is provided with a locking block (201) for locking with the inner wall of the main shell (1) to form a limit, and the inner wall of the rear cover (2) is provided with a first limit portion (202) for locking with the second limit portion (A01-1a) on the adjustment kit (A01-1) to fix the state of the capacity adjustment calibration kit (A01); The fixing kit (3) is located on the other end of the rear cover (2) away from the engaging block (201) to control the fixing state between the rear cover (2) and the main shell (1), so that the fixing kit (3) and the engaging block (201) jointly control the rear cover (2) to be fixedly mounted on the main shell (1).

2. A pipette housing according to claim 1, characterized in that: A limiting portion (102) is provided on the installation opening (101) for engaging with the rear cover (2) so that the rear cover (2) is fixedly covered on the installation opening (101).

3. A pipette housing according to claim 1, characterized in that: The fixing kit (3) comprises a fixing through hole (301) provided on the rear cover (2), a fixing hole (302) provided on the main shell (1), and a fixing member (303). When the rear cover (2) is fixedly mounted on the main shell (1), the fixing member (303) passes through the fixing through hole (301) and is then mounted in the fixing hole (302).

4. A pipette housing according to claim 3, characterized in that: A limiting concave surface (203) is provided on the rear cover (2), and the limiting concave surface (203) conforms to the fingers of a user when the pipette is held, and the fixing hole (302) is provided at the limiting concave surface (203).

5. A pipette, characterized in that The invention comprises a pipette housing according to any one of claims 1 to 4 and the volume adjustment calibration kit (A01), wherein the top of the adjustment kit (A01-1) is connected to the adjustment knob (A02).

6. A pipette according to claim 5, characterized in that: The invention also includes a digital display kit (A03) disposed in the main housing (1), wherein the digital display kit (A03) includes a driving gear (A03-1) and a digital display module (A03-2), wherein the driving gear (A03-1) is in driving connection with the capacity adjustment calibration kit (A01) and is used to drive the digital display module (A03-2) to display different capacity data.

7. A pipette according to claim 6, characterized in that: The capacity adjustment cylinder (A01-2) includes a cylinder body (A01-2a) and a first outer tooth (A01-2b) arranged at the top of the cylinder body (A01-2a); the adjustment kit (A01-1) includes a sleeve (A01-1b), a first inner tooth (A01-1c) arranged at the top of the sleeve (A01-1b), and a second outer tooth (A01-1d) arranged at the bottom of the sleeve (A01-1b); the sleeve (A01-1b) is sleeved on the outside of the capacity adjustment cylinder (A01-2) so that the first outer tooth (A01-2b) is engaged with the first inner tooth (A01-1c), and the second outer tooth (A01-1d) is engaged with the driving gear (A03-1), wherein the height of the first inner tooth (A01-1c) is less than or equal to the displacement of the adjustment kit (A01-1) when the capacity adjustment calibration kit (A01) switches states.

8. A pipette according to claim 5, characterized in that: The invention also includes a drive kit (A04), wherein the drive kit (A04) includes a pressing sleeve (A04-1) and a warning sleeve (A04-2) sleeved on the top of the pressing sleeve (A04-1), and a warning gap (A04-3) is formed between the outer wall of the pressing sleeve (A04-1) and the outer wall of the warning sleeve (A04-2).

9. A pipette according to any one of claims 5 to 8, characterized in that: The bottom of the pipette also includes a mounting connection portion for mounting a pipette tip kit.

10. A pipette set, characterized in that: The invention comprises a pipette and a pipette tip according to any one of claims 5 to 9.

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