Horizontal bubble assisted quantitative pipette

Abstract

The utility model relates to pipette technical field, concretely discloses horizontal bubble auxiliary quantitative pipette, include: pipette main part, one side of pipette main part is equipped with horizontal bubble, the outside one side fixed mounting of pipette main part has the scale, the outside positioning mechanism of the upper end of pipette main part is provided with, the outside one side fixed mounting of horizontal bubble has the clamping block, and the clamping block is trapezoidal, one side of horizontal bubble is equipped with the clamping shell, and one side of clamping shell is provided with the clamping groove that is matched with clamping block, the utility model does not need to use the operation complicated that bolt fastener brings, alleviates personnel burden, and improves the convenience and efficiency of installation and removal, avoids traditional pipette to rely on artificial visual inspection perpendicularity, and liquid volume error is caused easily because of inclination, and feedback scale fast calibration perpendicularity is passed through, reduces liquid volume error, simple structure, low in cost, promotes practical effect.

Description

Technical Field

[0001] This utility model belongs to the field of pipette technology, specifically relating to a horizontal bubble-assisted quantitative pipette. Background Technology

[0002] In numerous scientific research and experimental fields such as chemistry, biology, and medicine, the pipette is an indispensable glass or plastic instrument for accurately measuring and transferring liquid volumes. With its precise graduations, it enables the accurate measurement of specific volumes of liquid, providing a fundamental guarantee for the accuracy and reliability of experimental results.

[0003] However, when using traditional pipettes, operators often rely on visual inspection to determine if they are vertical. This visual inspection is highly subjective and uncertain; different people have different standards, and even the same person's accuracy varies depending on the time and place. This can easily cause the pipette to tilt, resulting in errors in liquid volume and affecting the accuracy and repeatability of experimental results. While existing technologies include calibration devices such as electronic levels that can accurately detect horizontality and provide intuitive feedback, these are costly. Not only is the equipment expensive to purchase, but its use also requires a power supply, increasing costs. Furthermore, their complex structure and stringent environmental requirements make them unsuitable for routine, large-scale pipetting operations. Therefore, the applicant proposes a bubble-assisted quantitative pipette to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a horizontal bubble-assisted quantitative pipette to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Horizontal bubble-assisted quantitative pipette, including:

[0007] A pipette body, wherein a spirit level is provided on one side of the pipette body, and a scale is fixedly installed on the outer side of the pipette body;

[0008] The upper end of the pipette body is provided with a positioning mechanism. A locking block is fixedly installed on one side of the horizontal bubble, and the locking block is trapezoidal. A locking shell is provided on one side of the horizontal bubble, and a locking groove that matches the locking block is opened on one side of the locking shell.

[0009] The top of the casing is provided with a disassembly mechanism for connecting the casing and the block.

[0010] Preferably, slots are provided on both outer walls of the card block, and insertion holes communicating with the slots are provided on both sides of the card case.

[0011] Preferably, the positioning mechanism includes a leather sleeve fitted on the upper part of the pipette body. Limiting frames are fixedly installed on the top and bottom of the leather sleeve, and the inner ring wall of the limiting frame has two grooves symmetrically opened. The upper part of the pipette body is symmetrically fixedly installed with protrusions that match the two grooves. The outer side of the leather sleeve is fixedly installed on the adjacent side wall of the retainer.

[0012] Preferably, the disassembly mechanism includes a mounting shell disposed on the top of the housing, and the bottom of the mounting shell is fixedly installed to the top of the housing. Two sliding plates are symmetrically arranged inside the mounting shell. A connecting rod is fixedly installed on the side of the two sliding plates that is far away from each other. The connecting rod is U-shaped. A plug block that is inserted into the insertion hole and slot is fixedly installed at the end of the two connecting rods that is far away from the sliding plate. A spring is sleeved on the end of the two connecting rods located inside the mounting shell. The two ends of the two springs are fixedly connected to one side of the sliding plate and the adjacent inner wall of the mounting shell, respectively.

[0013] Preferably, the disassembly mechanism further includes a limiting plate disposed on the top of the skateboard, a push plate fixedly installed on the top of the limiting plate, the top of the limiting plate being fixedly installed to the bottom of the skateboard, and multiple anti-slip patterns being vertically arrayed on one side of the push plate.

[0014] Preferably, two positioning grooves are symmetrically opened on one side of the top surface of the mounting shell, and two support plates are symmetrically fixedly installed on the other side of the top surface of the mounting shell. The top ends of the two support plates are hinged to baffles, and a positioning rod adapted to the positioning grooves is fixedly installed on the bottom side of the baffles.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) The positioning mechanism enables the sleeve to be securely fitted onto the upper part of the pipette body. The limiting frames set at the top and bottom of the sleeve, as well as the grooves opened on the inner ring wall, are adapted to the protrusions on the outside of the pipette body. The sleeve can be fixed by simple rotation, which simplifies the installation process, improves the operating efficiency, ensures a stable connection between the sleeve and the pipette, and provides a solid foundation for the subsequent installation of the horizontal bubble, thereby improving the stability and ease of use of the entire pipette.

[0017] (2) The horizontal bubble is connected to the body of the pipette by the locking block and the locking shell, which enables quick installation and disassembly. The slots on both sides of the locking block are connected to the insertion holes on the locking shell. With the help of the insertion block in the disassembly mechanism, the locking block and the locking shell can be easily fixed and separated. This not only avoids the cumbersome operation caused by using bolts and other fasteners and reduces the burden on personnel, but also improves the convenience and efficiency of installation and disassembly. It avoids the traditional pipette's reliance on manual visual inspection of verticality, which is prone to liquid volume errors due to tilting. In addition, the verticality can be quickly calibrated by the scale feedback, reducing liquid volume errors. The structure is simple, the cost is low, and the practical effect is improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the protrusion structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the card block structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the insert structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the baffle structure of this utility model;

[0023] In the diagram: 1. Positioning mechanism; 101. Sleeve; 102. Groove; 103. Protrusion; 2. Disassembly mechanism; 201. Mounting shell; 202. Connecting rod; 203. Insertion block; 204. Slide plate; 205. Limiting plate; 206. Push plate; 207. Spring; 3. Pipette body; 4. Scale; 5. Bubble spirit; 6. Clamp; 7. Clamping block; 8. Slot; 9. Support plate; 10. Baffle; 11. Positioning rod. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1:

[0028] Please see Figures 1-5 As shown, the bubble-assisted quantitative pipette includes: a pipette body 3, a bubble 5 on one side of the pipette body 3, and a scale 4 fixedly installed on the outer side of the pipette body 3.

[0029] A positioning mechanism 1 is provided on the upper external side of the pipette body 3. A locking block 7 is fixedly installed on one side of the horizontal bubble 5. The locking block 7 is trapezoidal. A locking shell 6 is provided on one side of the horizontal bubble 5. A locking groove that matches the locking block 7 is opened on one side of the locking shell 6.

[0030] The top of the housing 6 is provided with a disassembly mechanism 2 for connecting the housing 6 and the block 7.

[0031] As can be seen from the above, by observing the scale 4, personnel can avoid the reliance on manual visual inspection of verticality in traditional pipettes, which is prone to liquid volume errors due to tilting. Furthermore, the scale 4 allows for quick verticality calibration through visual feedback, reducing liquid volume errors. The positioning mechanism 1 allows the sleeve 101 to be fitted onto the upper part of the pipette body 3, connecting the retainer 6 to the outside of the pipette body 3. By engaging the retaining block 7 on one side of the bubble level 5 with the retaining groove inside the retaining block 6, and then using the disassembly mechanism 2 to position the retaining block 7 and the retaining block 6, the bubble level 5 is installed on the pipette body 3, increasing the convenience of disassembly. The pipette is simple in structure and low in cost, improving its practical effect. The usage of the pipette is as follows: Select a pipette with an appropriate volume, rinse it, insert it vertically into the liquid surface, draw liquid up to above the mark, block the pipette opening with your index finger, rinse the inner wall horizontally, adjust the liquid level until the meniscus is tangent to the mark, and vertically release the liquid into the receiving container. After it flows out naturally, let it stand for a period of time without blowing out any residual liquid. The pipette combines physical principles (such as liquid surface tension and gravity) with operating procedures to achieve high-precision liquid transfer. For the horizontal bubble 5 usage: Place it on a flat surface, observe the bubble position, adjust the height, and center the bubble. Verify by flipping it to ensure it is horizontal, and maintain stability to avoid vibration.

[0032] For details, please refer to Figure 3 As shown, slots 8 are provided on both outer walls of the card block 7, and insertion holes connected to the slots 8 are provided on both sides of the card case 6.

[0033] As can be seen from the above, by setting the slot 8 and the socket, when the card block 7 and the card shell 6 are engaged, the socket and the slot 8 are connected, which makes it easy for the plug 203 of the disassembly mechanism 2 to be inserted into the socket and the slot 8 so that the card block 7 and the card shell 6 are fixed together.

[0034] For details, please refer to Figure 2 As shown, the positioning mechanism 1 includes a sleeve 101 that is fitted onto the upper part of the pipette body 3. Limiting frames are fixedly installed on the top and bottom of the sleeve 101, and the inner ring wall of the limiting frame has two grooves 102 symmetrically opened. The upper part of the pipette body 3 is symmetrically fixedly installed with protrusions 103 that are adapted to the two grooves 102. The outer side of the sleeve 101 is fixedly installed on the adjacent side wall of the housing 6.

[0035] As can be seen from the above, the personnel can fit the inner part of the sleeve 101 onto the upper part of the pipette body 3, and at the same time, make the groove 102 on the inner wall of the top and bottom limiting frame of the sleeve 101 match the protrusion 103 on the outside of the pipette body 3. The personnel then rotate the sleeve 101 so that the two ends of the protrusion 103 abut against the two limiting frames, thereby fixing the sleeve 101 to the upper part of the pipette body 3.

[0036] For details, please refer to Figure 4 As shown, the disassembly mechanism 2 includes a mounting shell 201 located on the top of the housing 6, with the bottom of the mounting shell 201 fixedly installed to the top of the housing 6. Two sliding plates 204 are symmetrically arranged inside the mounting shell 201. A connecting rod 202 is fixedly installed on the side of the two sliding plates 204 that is far away from each other. The connecting rod 202 is U-shaped. A plug block 203 that is inserted into the insertion hole and slot 8 is fixedly installed at the end of the two connecting rods 202 that is far away from the sliding plate 204. A spring 207 is sleeved on the end of the two connecting rods 202 located inside the mounting shell 201. The two ends of the two springs 207 are fixedly connected to one side of the sliding plate 204 and the adjacent inner wall of the mounting shell 201, respectively.

[0037] The disassembly mechanism 2 also includes a limiting plate 205 set on the top of the skateboard 204. A push plate 206 is fixedly installed on the top of the limiting plate 205. The top of the limiting plate 205 is fixedly installed on the bottom of the skateboard 204. Multiple anti-slip patterns are vertically arrayed on one side of the push plate 206.

[0038] As can be seen from the above, the operator engages the locking block 7 outside the horizontal bubble 5 with the locking case 6 outside the sleeve 101. Then, the operator pushes the two push plates 206, which in turn move the limiting plate 205 and the sliding plate 204, and pushes the connecting rod 202. At this time, the movement of the sliding plate 204 will compress the spring 207. When the connecting rod 202 moves, the plug 203 fixed at one end is inserted into the insertion hole and slot 8. Then, the limiting plate 205 is blocked by the baffle 10. When it is necessary to remove it, the baffle 10 is rotated back to its original position. The spring 207 then loses its compressive force and pulls the sliding plate 204 back to its original position. The return of the sliding plate 204 then drives the connecting rod 202 back to its original position, causing the plug 203 to move and separate from the slot 8, releasing the positioning of the locking block 7. This makes it easy for the operator to remove the horizontal bubble 5 without the need for the operator to use bolts or other fasteners to install the horizontal bubble 5, reducing the operator's workload and improving the practicality of the pipette.

[0039] Example 2:

[0040] refer to Figure 5 As shown, two positioning grooves are symmetrically opened on one side of the top surface of the mounting shell 201, and two support plates 9 are symmetrically fixedly installed on the other side of the top surface of the mounting shell 201. The top of the two support plates 9 are hinged to the baffles 10, and the bottom side of the baffles 10 is fixedly installed with positioning rods 11 that are compatible with the positioning grooves.

[0041] As can be seen from the above, by setting the baffle 10 and the positioning rod 11, when the person pushes the push plate 206 so that the connecting rod 202 drives the insert 203 into the slot 8, the baffle 10 can be rotated by the hinge. Then the baffle 10 can drive the positioning rod 11 into the positioning groove, so that the baffle 10 can block the limiting plate 205 and prevent the spring 207 from pushing the slide plate 204 back to its original position, so that the insert 203 can be stably positioned in the slot 8.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A horizontal bubble-assisted quantitative pipette, characterized in that, include: A pipette body (3) is provided with a bubble level (5) on one side of the pipette body (3), and a scale (4) is fixedly installed on the outer side of the pipette body (3). The upper end of the pipette body (3) is provided with a positioning mechanism (1), a locking block (7) is fixedly installed on one side of the horizontal bubble (5), and the locking block (7) is trapezoidal. A locking shell (6) is provided on one side of the horizontal bubble (5), and a locking groove adapted to the locking block (7) is opened on one side of the locking shell (6). The top of the casing (6) is provided with a disassembly mechanism (2) for connecting the casing (6) and the block (7).

2. The horizontal bubble-assisted quantitative pipette according to claim 1, characterized in that: The card block (7) has slots (8) on both sides of its outer wall, and the card case (6) has insertion holes on both sides that communicate with the slots (8).

3. The horizontal bubble-assisted quantitative pipette according to claim 1, characterized in that: The positioning mechanism (1) includes a sleeve (101) fitted on the upper part of the pipette body (3). The top and bottom of the sleeve (101) are fixedly installed with a limiting frame, and the inner ring wall of the limiting frame is symmetrically opened with two grooves (102). The upper part of the pipette body (3) is symmetrically fixedly installed with protrusions (103) that are adapted to the two grooves (102). The outer side of the sleeve (101) is fixedly installed with the adjacent side wall of the retainer (6).

4. The horizontal bubble-assisted quantitative pipette according to claim 2, characterized in that: The disassembly mechanism (2) includes a mounting shell (201) set on the top of the casing (6), and the bottom of the mounting shell (201) is fixedly installed with the top of the casing (6). Two sliding plates (204) are symmetrically arranged inside the mounting shell (201). A connecting rod (202) is fixedly installed on the side of the two sliding plates (204) that is far away from each other. The connecting rod (202) is U-shaped. A plug block (203) that is inserted into the socket and slot (8) is fixedly installed at the end of the two connecting rods (202) that is far away from the sliding plate (204). A spring (207) is sleeved on the end of the two connecting rods (202) located inside the mounting shell (201). The two ends of the two springs (207) are fixedly connected to one side of the sliding plate (204) and the adjacent inner wall of the mounting shell (201), respectively.

5. The horizontal bubble-assisted quantitative pipette according to claim 4, characterized in that: The disassembly mechanism (2) also includes a limiting plate (205) set on the top of the slide plate (204), a push plate (206) is fixedly installed on the top of the limiting plate (205), the top of the limiting plate (205) is fixedly installed with the bottom of the slide plate (204), and multiple anti-slip patterns are vertically arrayed on one side of the push plate (206).

6. The horizontal bubble-assisted quantitative pipette according to claim 4, characterized in that: Two positioning grooves are symmetrically opened on one side of the top surface of the mounting shell (201), and two support plates (9) are symmetrically fixedly installed on the other side of the top surface of the mounting shell (201). The top ends of the two support plates (9) are hinged to baffles (10), and a positioning rod (11) adapted to the positioning groove is fixedly installed on one side of the bottom of the baffle (10).

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