Volume-adjustable anti-overflow anti-volatilization sample adding device

Abstract

The utility model provides an anti-overflow and anti-volatilization sample adding device with adjustable volume. The anti-overflow and anti-volatilization sample adding device comprises a sample adding groove and a transparent sealing cover, an opening is formed in the top of the sample adding groove and is used for containing a sample reagent; a partition plate is arranged in the sample adding groove; the partition plate is detachably connected with the sample adding groove, and the shape of the partition plate is matched with the shape of the cross section of the sample adding groove, so that an inner cavity of the sample adding groove is divided into a sample adding cavity and an adjusting cavity; an olecranon-shaped pouring opening is formed in a groove opening of the sample adding groove; the transparent sealing cover is used for being in sealed connection with a sample adding groove; a sample adding opening is formed in the transparent sealing cover; a baffle plate is arranged above the sample adding opening; the baffle is in sliding connection with the transparent sealing cover. According to the sample adding device disclosed by the utility model, the volume of the sample adding groove can be flexibly adjusted through the innovative design, and a reagent can be effectively prevented from volatilizing during sample adding and overflowing during dumping by arranging a sealing structure and an anti-overflow mechanism, so that the safety and the accuracy of an experiment are improved.

Description

Technical Field

[0001] This utility model relates to the field of clinical mass spectrometry, specifically to an adjustable-volume anti-overflow and anti-volatilization sample dispensing device. Background Technology

[0002] A sample transfer container is a commonly used auxiliary tool in clinical laboratory testing. It is mainly used to hold liquid reagents so that the same liquid can be repeatedly transferred during pipetting operations, simplifying the operation process and improving work efficiency. However, the sample dispensing tanks currently on the market still have some limitations, such as the inability to adjust the volume, lack of anti-overflow and anti-volatility functions, etc. Specifically: (1) The volume of traditional sample dispensing tanks is fixed and cannot be flexibly adjusted according to experimental needs, which means that different models of sample dispensing tanks need to be replaced when processing different volumes of reagents, increasing the complexity and cost of operation; moreover, when adding small volumes of samples or when the amount of reagent is not sufficient, the volume of the sample dispensing tank is too large, which can easily cause reagent loss; (2) Traditional sample dispensing tanks lack the function of preventing overflow when pouring. During the pouring of the remaining reagents, because the reagents are fluid, if the experimenter operates improperly, the reagents can easily overflow, which not only wastes the reagents but may also contaminate the experimental table and affect the safety of the experimental environment; (3) Traditional sample dispensing tanks are open at the top. Since they do not have a sealing design, if the reagents are volatile, they are easy to volatilize during the sample dispensing process, which will affect the accuracy of the experimental results. If the reagents are toxic, they may also harm the health of the experimenter. Utility Model Content

[0003] To address the aforementioned issues, this invention provides an adjustable-volume, spill-proof, and anti-volatile sample dispensing device. This device achieves flexible volume adjustment of the dispensing tank volume by incorporating a detachable partition inside the tank, thus accommodating different sample dispensing requirements. Secondly, the design of an eagle-beak-shaped pouring spout at the tank opening effectively prevents leakage during reagent recovery. Furthermore, the inclusion of a transparent sealing cap allows for the covering of the tank opening when handling volatile samples, effectively reducing sample evaporation during dispensing and avoiding the risk of potential contamination from prolonged exposure, thereby improving experimental safety and accuracy.

[0004] The technical solution of this application is as follows:

[0005] An adjustable-volume, leak-proof, and volatile-proof sample dispensing device includes a sample dispensing trough and a transparent sealing cap. The sample dispensing trough has an opening at the top for holding sample reagents. A partition is provided inside the sample dispensing trough. The partition is detachably connected to the sample dispensing trough, and its shape is adapted to the cross-sectional shape of the sample dispensing trough, thereby dividing the internal cavity of the sample dispensing trough into a sample dispensing cavity and an adjustment cavity. An eagle-beak-shaped pouring spout is provided at the opening of the sample dispensing trough. The transparent sealing cap is used for a sealed connection with the sample dispensing trough. A sample dispensing port is provided on the transparent sealing cap. A baffle is provided above the sample dispensing port. The baffle is slidably connected to the transparent sealing cap.

[0006] Compared with existing technologies, the adjustable-volume, leak-proof, and volatile-proof sample dispensing device of this application includes a sample dispensing trough and a transparent sealing cover. The sample dispensing trough has a detachable partition that divides the internal cavity into a sample dispensing cavity and an adjustment cavity. During use, the volume of the sample dispensing trough can be flexibly adjusted by moving the partition, thus matching different sample dispensing needs without the need to change different sample dispensing troughs. This improves the flexibility and efficiency of experiments, especially when dispensing small volumes or when reagent quantities are limited, preventing sample and reagent loss due to an excessively large sample dispensing trough volume. Secondly, when using a sample dispensing trough, excessive reagent is often introduced to meet the dispensing requirements. This application addresses this by designing an eagle-beak-shaped [feature] at the opening of the sample dispensing trough. The pouring spout effectively prevents reagent spillage and waste, reducing experimental costs when excess reagents are poured out and recycled. Furthermore, mass spectrometry laboratory sample preparation often uses highly volatile organic reagents. This application incorporates a transparent, leak-proof sealing cap with a pipette insertion port and a baffle to block the port. When handling volatile reagents, the transparent sealing cap can be placed over the sample loading tank opening for loading, and the baffle can then block the port after loading. This effectively reduces reagent evaporation during loading, avoids the risk of potential contamination from prolonged exposure, reduces health hazards to laboratory personnel, and improves experimental safety and accuracy.

[0007] As an optimization, in the aforementioned adjustable-volume anti-overflow and anti-evaporation sample dispensing device, the bottom of the dispensing tank is an angle formed by two intersecting inclined planes extending downward from the opening of the dispensing tank. This specific structural design makes it easier for the solution to collect at the bottom of the dispensing tank. When the solution in the dispensing tank is almost used up, compared to a flat-bottomed dispensing tank, the angled bottom allows the same volume of solution to have a higher height, making it easier for the pipette to draw the solution up.

[0008] As an optimization, in the aforementioned adjustable-volume anti-overflow and anti-evaporation sample dispensing device, the pouring port is located at the apex corner of the sample dispensing tank. In this case, when the sample dispensing tank is tilted, the solution in the tank will more easily converge at the pouring port, and leakage will be less likely.

[0009] Furthermore, there are two pouring ports, which are arranged symmetrically at the center. This allows the experimenter to easily pick up the pouring tank with their right hand and pour the liquid, regardless of whether the sample container is placed upright or in the opposite direction.

[0010] As an optimization, in the aforementioned adjustable-volume anti-overflow and anti-volatilization sample dispensing device, the partition is provided with buckles on both sides, which are engaged and fixed to the wall of the sample dispensing tank. This makes assembly and disassembly more convenient and reduces implementation difficulty.

[0011] As an optimization, in the aforementioned adjustable-volume anti-overflow and anti-volatilization sample dispensing device, scale lines are provided on both sides of the inner wall of the dispensing groove. This allows for the positioning of different volume positions based on the scale lines. In actual use, the partition is inserted into the dispensing groove according to the position of the scale line to meet the required sample volume, resulting in high dispensing accuracy.

[0012] As an optimization, in the aforementioned adjustable-volume anti-overflow and anti-volatile sample dispensing device, the transparent sealing cover has an internal groove; the baffle is located within the groove, with both ends of the baffle extending from the ends of the groove and equipped with adjustment buttons. In use, the baffle can be moved by simply turning the adjustment buttons, making operation very simple. Furthermore, the adjustment buttons are fitted onto the end of the baffle, with an interference fit. This results in a simple connection structure and convenient assembly and disassembly.

[0013] As an improvement, in the aforementioned adjustable-volume anti-overflow and anti-volatile sample dispensing device, the bottom of the outer edge of the transparent sealing cap is provided with an annular protective edge; in use, the annular protective edge is fitted over the sample dispensing slot. This provides better sealing performance and makes assembly more convenient.

[0014] As an optimization, in the aforementioned adjustable-volume anti-overflow and anti-evaporation sample dispensing device, the bottom of the sample dispensing tank is provided with a pad to prevent liquid from flowing directly onto the workbench. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the adjustable-volume anti-overflow and anti-volatilization sample dispensing device in the embodiments of this application (the sample dispensing trough and the transparent sealing cap are not assembled).

[0016] Figure 2 This is a schematic diagram of the sample addition tank in the embodiments of this application;

[0017] Figure 3 This is a schematic diagram of the structure of the transparent sealing cap in the embodiments of this application;

[0018] Figure 4 This is a schematic diagram of the assembly of the sample dispensing groove and the transparent sealing cap in an embodiment of this application;

[0019] Figure 5 yes Figure 4A schematic diagram of the assembly after the baffle is removed.

[0020] The markings in the attached diagram are as follows: 1-base plate, 101-sample filling cavity, 102-adjustment cavity, 103-pour port, 11-gradient line; 2-transparent sealing cap, 201-sample filling port, 202-slide groove, 21-ring guard; 3-partition, 31-buckle; 4-baffle, 41-adjustment button; 5-pad. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings, but it should not be construed as a basis for limiting this utility model.

[0022] To overcome the problems of existing sample loading vessels, such as the inability to adjust volume and the lack of spill-proof and anti-volatilization functions, the applicant proposes an adjustable-volume, spill-proof, and anti-volatilization sample loading device. Through innovative design, this device allows for flexible adjustment of the sample loading vessel volume. By incorporating a sealing structure and spill-proof mechanism, it effectively prevents reagent volatilization during loading and spillage during pouring, thus improving the safety and accuracy of the experiment. The specific structure of the sample loading device is as follows.

[0023] Example:

[0024] See Figures 1 to 3 The adjustable-volume, leak-proof, and volatile-resistant sample dispensing device in this embodiment includes a sample dispensing tank 1 and a transparent sealing cap 2. The sample dispensing tank 1 has an opening at the top for holding sample reagents. A partition 3 is provided inside the sample dispensing tank 1. The partition 3 is detachably connected to the sample dispensing tank 1, and the shape of the partition 3 is adapted to the cross-sectional shape of the sample dispensing tank 1, thereby dividing the internal cavity of the sample dispensing tank 1 into a sample dispensing cavity 101 and an adjustment cavity 102. A beak-shaped pouring spout 103 is provided at the opening of the sample dispensing tank 1. The transparent sealing cap 2 is used for a sealed connection with the sample dispensing tank 1 (when handling volatile reagents, the transparent sealing cap 2 is placed over the opening of the sample dispensing tank 1). A sample dispensing port 201 is provided on the transparent sealing cap 2. A baffle 4 is provided above the sample dispensing port 201. The baffle 4 is slidably connected to the transparent sealing cap 2.

[0025] In this embodiment, the bottom of the sample loading tank 1 is an angle formed by two intersecting inclined planes extending downward from the opening of the sample loading tank 1. This specific structural design makes it easier for the solution to accumulate at the bottom of the sample loading tank 1. When the solution in the sample loading tank 1 is almost used up, compared to a flat-bottomed sample loading tank, the angled bottom allows the same volume of solution to have a higher height, making it easier for the pipette to draw the solution up.

[0026] In this embodiment, the pouring spout 103 is located at the apex corner of the sample loading tank 1. When the sample loading tank 1 is tilted, the solution within it more easily converges at the pouring spout 103, and leakage is less likely. Furthermore, there are two pouring spouts 103, arranged symmetrically at the center. Therefore, regardless of whether the sample loading tank 1 is placed upright or inverted, it is convenient for the experimenter to directly pick up the sample loading tank 1 with their right hand and pour the liquid.

[0027] In this embodiment, the partition 3 is provided with buckles 31 on both sides, and the buckles 31 are engaged and fixed with the wall of the sample loading groove 1. This results in a simple connection structure, convenient assembly and disassembly, and low implementation difficulty. A receiving groove for placing the buckles 31 is provided on the outer surface of the sample loading groove 1 wall, so that the outer surface of the buckles 31 is flush with the outer surface of the sample loading groove 1, thereby preventing interference between the transparent sealing cap 2 and the buckles 31 when the transparent sealing cap 2 is placed on the sample loading groove 1.

[0028] In this embodiment, the inner wall of the sample dispensing tank 1 is provided with graduation lines 11 on both sides. This allows for the positioning of different volume positions based on the graduation lines 11. In actual use, the partition 3 is inserted into the sample dispensing tank 1 according to the position of the graduation lines 11 to meet the required sample volume, resulting in high accuracy. Specifically, the sample dispensing tank 1 in this embodiment has a volume of 50ml, and four graduation lines 11 are provided on each side of the inner wall of the sample dispensing tank 1, respectively positioning volume positions of 10ml, 20ml, 30ml, and 40ml.

[0029] In this embodiment, the sample application port 201 is elongated and located in the middle of the transparent sealing cover 2; the transparent sealing cover 2 has a sliding groove 202 inside; the baffle 4 is located in the sliding groove 202, and both ends of the baffle 4 extend from both ends of the sliding groove 202, and an adjustment button 41 is provided. In use, by moving the adjustment button 41, the baffle 4 can slide along the short side of the transparent sealing cover 2; the operation is very simple. See also... Figure 4 This refers to the state when baffle 4 covers the sample inlet 201. See [reference needed]. Figure 5 This refers to the state when the baffle 4 is removed and does not cover the sample inlet 201. Furthermore, the adjustment button 41 is sleeved on the end of the baffle 4 and is interference-fitted with it. In this case, the connection structure is simple and easy to assemble and disassemble.

[0030] In this embodiment, the bottom of the outer edge of the transparent sealing cap 2 is provided with an annular guard 21; in use, the annular guard 21 is fitted over the sample dispensing tank 1. At this time, the sealing performance is good and the assembly is relatively convenient. The bottom of the sample dispensing tank 1 is provided with a pad 5 to prevent liquid from flowing directly onto the workbench surface.

[0031] The foregoing general description of the utility model and its specific embodiments should not be construed as limiting the technical solution of the utility model. Those skilled in the art, based on the disclosure of this application, can add, reduce, or combine the disclosed technical features in the foregoing general description and / or specific embodiments (including examples) without departing from the constituent elements of the utility model, to form other technical solutions within the protection scope of this utility model.

Claims

1. An adjustable-volume, leak-proof, and anti-volatile sample dispensing device, characterized in that: The sample dispensing tank (1) and a transparent sealing cap (2) are included. The top of the sample dispensing tank (1) is open for holding sample reagents. A partition (3) is provided inside the sample dispensing tank (1). The partition (3) is detachably connected to the sample dispensing tank (1), and the shape of the partition (3) is adapted to the shape of the cross-section of the sample dispensing tank (1), thereby dividing the internal cavity of the sample dispensing tank (1) into a sample dispensing cavity (101) and an adjustment cavity (102). A beak-shaped pouring spout (103) is provided at the opening of the sample dispensing tank (1). The transparent sealing cap (2) is used for sealing connection with the sample dispensing tank (1). A sample dispensing port (201) is provided on the transparent sealing cap (2). A baffle (4) is provided above the sample dispensing port (201). The baffle (4) is slidably connected to the transparent sealing cap (2).

2. The adjustable-volume anti-overflow and anti-volatilization sample dispensing device according to claim 1, characterized in that: The bottom of the sample loading groove (1) is an angle formed by two intersecting inclined planes extending downward from the opening of the sample loading groove (1).

3. The adjustable-volume anti-overflow and anti-volatilization sample dispensing device according to claim 2, characterized in that: The pouring port (103) is located at the top corner of the sample loading tank (1).

4. The adjustable-volume anti-overflow and anti-volatilization sample dispensing device according to claim 3, characterized in that: The number of the pouring ports (103) is two, and the two pouring ports (103) are arranged in a centrally symmetrical manner.

5. The adjustable-volume anti-overflow and anti-volatilization sample dispensing device according to claim 2, characterized in that: The partition (3) is provided with buckles (31) on both sides, and the buckles (31) are engaged and fixed with the wall of the sample loading groove (1).

6. The adjustable-volume anti-overflow and anti-volatilization sample dispensing device according to claim 2, characterized in that: The inner wall of the sample loading tank (1) is provided with scale lines (11) on both sides.

7. The adjustable-volume anti-overflow and anti-volatilization sample dispensing device according to claim 2, characterized in that: The transparent sealing cover (2) has a groove (202) inside; the baffle (4) is located in the groove (202), and the two ends of the baffle (4) extend from the two ends of the groove (202) respectively, and are provided with adjustment buttons (41).

8. The adjustable-volume anti-overflow and anti-volatilization sample dispensing device according to claim 7, characterized in that: The adjustment button (41) is sleeved on the end of the baffle (4) and is interference-fitted with the baffle (4).

9. The adjustable-volume anti-overflow and anti-volatilization sample dispensing device according to claim 2, characterized in that: The bottom of the outer edge of the transparent sealing cap (2) is provided with an annular guard (21); when in use, the annular guard (21) is fitted over the sample loading groove (1).

10. The adjustable-volume anti-overflow and anti-volatilization sample dispensing device according to claim 2, characterized in that: The bottom of the sample addition tank (1) is provided with a pad (5).

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