Liquid dropping measuring cylinder for chemical laboratory

Abstract

The utility model discloses a liquid dropping measuring cylinder for a chemical laboratory, which relates to the technical field of chemical laboratory tools and comprises a cleaning box, the upper portion of the cleaning box is movably connected with a top cover, an auxiliary assembly is arranged in the cleaning box, and two rubber blocks clamp the liquid dropping measuring cylinder in the cleaning box. A limiting rubber ring positions and limits an opening of the liquid dropping measuring cylinder, a cleaning assembly is arranged in the cleaning box, rotation of a second cleaning brush enables a second gear and a first gear to rotate along with the second cleaning brush, and rotation of the second gear and the first gear drives a plurality of first cleaning brushes to rotate at the same time; the cleaning assembly can comprehensively and efficiently clean the interior and the outer side of the liquid dropping measuring cylinder at the same time, it is guaranteed that the area, difficult to touch, in the measuring cylinder can be thoroughly cleaned, residual chemical reagents and stains are removed, the surface of each inch of the outer side of the measuring cylinder is ingeniously covered, and the cleaning effect is good. And the risk of cross contamination caused by neglecting outer side cleaning is avoided.

Description

Technical Field

[0001] This utility model relates to the field of chemical laboratory tools, and in particular to a dropping graduated cylinder for use in chemical laboratories. Background Technology

[0002] Dropping graduated cylinders are widely used in experimental research in chemistry, biology, medicine, and other fields, especially in situations requiring precise control of reactant quantities, solution preparation, or titration analysis. Their use greatly improves the accuracy and reproducibility of experiments, making them an indispensable laboratory tool for researchers and experimental technicians.

[0003] A graduated cylinder, used in chemistry labs, is a precision measuring tool that combines the advantages of both a graduated cylinder and a burette. It is specifically designed for chemical analysis experiments requiring highly accurate control of liquid volume. It features a spacious, transparent cylinder with precise and easy-to-read volume markings, allowing researchers to quickly and accurately read and measure the total volume of liquids.

[0004] Existing dropper cylinders inevitably retain chemical reagents, stains, or microorganisms from previous experiments during use. These residues need to be cleaned promptly to prevent them from affecting measurement accuracy and lifespan in subsequent uses. However, most existing dropper cylinders are cleaned manually by laboratory personnel. This undoubtedly increases the workload of laboratory personnel, especially for laboratories that use them extensively. Furthermore, manual cleaning may result in incomplete cleaning due to insufficient cleaning force, potentially leading to deviations or errors in experimental results. Moreover, improper operation during cleaning can easily cause gloves to tear, resulting in direct contact between laboratory personnel and wastewater, which could compromise their safety. Therefore, a new dropper cylinder for chemical laboratories is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as incomplete cleaning due to insufficient cleaning force or incorrect cleaning methods, and the risk of gloves tearing due to improper operation, leading to direct contact between laboratory personnel and wastewater, thus affecting their safety. The invention proposes a dropping graduated cylinder for use in chemical laboratories.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A graduated cylinder for use in a chemical laboratory includes a cleaning chamber with a top cover movably connected to its upper part. An auxiliary assembly is disposed inside the cleaning chamber, comprising multiple limiting rubber rings fixedly connected inside the cleaning chamber and rubber blocks symmetrically and movably connected inside the cleaning chamber. Two of the rubber blocks clamp the graduated cylinder inside the cleaning chamber, and the limiting rubber rings position and restrict the opening of the graduated cylinder. A cleaning assembly is disposed inside the cleaning chamber, comprising multiple first and second cleaning brushes rotatably connected inside the cleaning chamber, and a second and first gear rotatably connected inside the cleaning chamber. Rotation of the second cleaning brushes causes the second and first gears to rotate accordingly, and the rotation of the second and first gears drives the multiple first cleaning brushes to rotate simultaneously.

[0008] The above technical solution further includes:

[0009] The cleaning tank is fixedly connected to a cleaning tube. Cleaning liquid and clean water are used to clean the outside of the measuring cylinder through the cleaning tube. The cleaning tank is also fixedly connected to multiple support rods, and each of the support rods is fixedly connected to a support ring at its end.

[0010] The support ring is internally fixedly connected with springs. There are two sets of springs symmetrically distributed. The springs are fixedly connected to the rubber blocks, and the springs buffer the clamping of the two rubber blocks on the dripping cylinder.

[0011] The cleaning box is fixedly connected to a first support plate, which is fixedly connected to a limiting rubber ring. The upper part of the first support plate has multiple holes and multiple cleaning nozzles. The holes discharge sewage on the first support plate, and the cleaning liquid and clean water are cleaned inside the dripping measuring cylinder through the cleaning nozzles.

[0012] A cleaning fluid delivery pipe is fixedly connected to the outside of the cleaning box, and a clean water delivery pipe is fixedly connected to the outside of the cleaning box. The cleaning fluid delivery pipe and the clean water delivery pipe are connected to the cleaning pipe through water pipes. The cleaning fluid delivery pipe and the clean water delivery pipe are connected to the cleaning nozzle through water pipes. The cleaning fluid and clean water are used to clean the drip measuring cylinder inside the cleaning box through the connection with the cleaning fluid delivery pipe and the clean water delivery pipe.

[0013] The cleaning box is fixedly connected to a second support plate. The second support plate has multiple sewage outlets on the side near the hole. The outside of the cleaning box is fixedly connected to a sewage pipe. The sewage pipe and the sewage outlets are connected by a water pipe. The sewage outlets on the second support plate discharge the sewage that leaks into the hole.

[0014] The first cleaning brush is rotatably connected to the first support plate and the second support plate, and the second cleaning brush is rotatably connected to the first support plate and the second support plate. A third gear is fixedly connected to the end of the first cleaning brush and the second cleaning brush away from the cleaning tube. The second cleaning brush and multiple first cleaning brushes respectively perform all-round cleaning of the inside and outside of the dripping cylinder.

[0015] A motor is fixedly connected inside the cleaning box. The output shaft end of the motor is fixedly connected to the second cleaning brush. The second cleaning brush is fixedly connected to the second gear and the first gear. The second gear and the first gear mesh with the third gear. The rotation of the second cleaning brush drives the rotation of the second gear and the first gear. The rotation of the second gear and the first gear drives the rotation of multiple first cleaning brushes.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, the rubber block in the auxiliary component clamps the dripping measuring cylinder inside the cleaning box, and the limiting rubber ring positions and restricts the opening of the dripping measuring cylinder, preventing the measuring cylinder from sliding or tipping over during cleaning, which would result in incomplete cleaning.

[0018] 2. In this utility model, the rotation of the second cleaning brush in the cleaning assembly causes the second gear and the first gear to rotate accordingly. The rotation of the second gear and the first gear drives multiple first cleaning brushes to rotate simultaneously, enabling comprehensive and efficient cleaning of both the inside and outside of the measuring cylinder. This not only ensures that hard-to-reach areas inside the measuring cylinder are thoroughly cleaned, removing residual chemical reagents and stains, but also cleverly covers every inch of the outer surface of the measuring cylinder, avoiding the risk of cross-contamination caused by neglecting the cleaning of the outside. This solves the problems of incomplete cleaning due to insufficient cleaning force or incorrect cleaning method in manual cleaning, and the safety risks of manual cleaning due to improper operation that could easily tear gloves and cause direct contact between the experimenter and the wastewater. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a dropping graduated cylinder for use in a chemical laboratory, as proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the top cross-sectional structure of this utility model;

[0021] Figure 3 This is a side sectional view of the structure of this utility model;

[0022] Figure 4 This is a front sectional view of the structure of this utility model;

[0023] Figure 5 This is a schematic cross-sectional view of the front portion of the present invention;

[0024] Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0025] In the diagram: 1. Cleaning tank; 2. Top cover; 3. Cleaning liquid delivery pipe; 4. Clean water delivery pipe; 5. Drain pipe; 6. Support rod; 7. Support ring; 8. Spring; 9. Rubber block; 10. First cleaning brush; 11. Cleaning pipe; 12. First support plate; 13. Limiting rubber ring; 14. Cleaning nozzle; 15. Leak; 16. Second support plate; 17. Motor; 18. First gear; 19. Second gear; 20. Third gear; 21. Second cleaning brush; 22. Drain port. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] like Figures 1-6 As shown, the present invention proposes a dropper cylinder for a chemical laboratory, comprising a cleaning box 1, a top cover 2 movably connected to the upper part of the cleaning box 1, and an auxiliary component inside the cleaning box 1. The auxiliary component includes multiple limiting rubber rings 13 fixedly connected inside the cleaning box 1, and rubber blocks 9 symmetrically and movably connected inside the cleaning box 1. The two rubber blocks 9 clamp the dropper cylinder inside the cleaning box 1, and the limiting rubber rings 13 position and limit the opening of the dropper cylinder. The cleaning component includes a cleaning assembly inside the cleaning box 1, comprising multiple first cleaning brushes 10 and second cleaning brushes 21 rotatably connected inside the cleaning box 1, and a second gear 19 and a first gear 18 rotatably connected inside the cleaning box 1. The rotation of the second cleaning brushes 21 causes the second gears 19 and the first gears 18 to rotate accordingly, and the rotation of the second gears 19 and the first gears 18 drives the multiple first cleaning brushes 10 to rotate simultaneously.

[0029] The cleaning tank 1 is fixedly connected to a cleaning tube 11. Cleaning liquid and clean water are used to clean the outside of the measuring cylinder through the cleaning tube 11. The cleaning tank 1 is fixedly connected to multiple support rods 6, and each of the multiple support rods 6 is fixedly connected to a support ring 7.

[0030] The support ring 7 is internally fixedly connected with springs 8. There are two sets of springs 8, which are symmetrically distributed. The springs 8 are fixedly connected to the rubber blocks 9. The springs 8 buffer the clamping of the two rubber blocks 9 on the dripping cylinder.

[0031] The cleaning box 1 is fixedly connected to a first support plate 12. The first support plate 12 is fixedly connected to a limiting rubber ring 13. The upper part of the first support plate 12 has multiple holes 15 and multiple cleaning nozzles 14. The holes 15 discharge sewage from the first support plate 12, and the cleaning liquid and clean water are cleaned inside the drip measuring cylinder through the cleaning nozzles 14.

[0032] In this embodiment, by opening the top cover 2 on the cleaning box 1, the opening of the dripping graduated cylinder is aligned with the limiting rubber ring 13 on the first support plate 12, and passes through the middle of the two rubber blocks 9, so that the opening of the dripping graduated cylinder is placed inside the limiting rubber ring 13, thereby initially restricting the graduated cylinder. Through the rubber blocks 9 connected by the spring 8, the rubber blocks 9 provide a buffering force for fixing the dripping graduated cylinder, preventing it from being fixed too firmly and causing damage to the dripping graduated cylinder.

[0033] Example 2

[0034] like Figures 1-6 As shown, based on Embodiment 1, a cleaning liquid delivery pipe 3 is fixedly connected to the outside of the cleaning tank 1, and a clean water delivery pipe 4 is fixedly connected to the outside of the cleaning tank 1. The cleaning liquid delivery pipe 3 and the clean water delivery pipe 4 are connected to the cleaning pipe 11 through water pipes, and the cleaning liquid delivery pipe 3 and the clean water delivery pipe 4 are connected to the cleaning nozzle 14 through water pipes. The cleaning liquid and clean water are connected to the cleaning liquid delivery pipe 3 and the clean water delivery pipe 4 to clean the drip measuring cylinder inside the cleaning tank 1.

[0035] The cleaning box 1 is fixedly connected to a second support plate 16. The second support plate 16 has multiple drain ports 22 on the side near the hole 15. The outside of the cleaning box 1 is fixedly connected to a drain pipe 5. The drain pipe 5 is connected to the drain ports 22 by a water pipe. The drain ports 22 on the second support plate 16 discharge the sewage that leaks into the hole 15.

[0036] The first cleaning brush 10 is rotatably connected to the first support plate 12 and the second support plate 16. The second cleaning brush 21 is rotatably connected to the first support plate 12 and the second support plate 16. The ends of the first cleaning brush 10 and the second cleaning brush 21 away from the cleaning tube 11 are both fixedly connected to a third gear 20. The second cleaning brush 21 and the multiple first cleaning brushes 10 respectively perform all-round cleaning of the inside and outside of the dripping graduated cylinder.

[0037] A motor 17 is fixedly connected inside the cleaning box 1. The output shaft end of the motor 17 is fixedly connected to the second cleaning brush 21. The second cleaning brush 21 is fixedly connected to the second gear 19 and the first gear 18. The second gear 19 and the first gear 18 mesh with the third gear 20. The rotation of the second cleaning brush 21 drives the rotation of the second gear 19 and the first gear 18. The rotation of the second gear 19 and the first gear 18 drives the rotation of multiple first cleaning brushes 10.

[0038] In this embodiment, as described in the previous step, the external clean water and cleaning liquid are first connected to the cleaning liquid delivery pipe 3 and the clean water delivery pipe 4, respectively. The cleaning liquid is sprayed into the interior of the cleaning tank 1 beforehand through the cleaning liquid delivery pipe 3. The cleaning liquid is sprayed out through the cleaning pipe 11 and the cleaning nozzle 14 through the cleaning liquid delivery pipe 3, thus spraying the cleaning liquid onto both the outside and inside of the measuring cylinder. At this time, the start of the motor 17 drives the rotation of the second cleaning brush 21. The rotation of the second cleaning brush 21 drives the second gear 19 and the first gear 18 to rotate simultaneously. The rotation of the second gear 19 and the first gear 18, through meshing with the third gear 20, drives... Multiple first cleaning brushes 10 rotate simultaneously, causing multiple first cleaning brushes 10 and second cleaning brushes 21 to rotate while performing all-round cleaning and brushing of the dripping graduated cylinder that has been sprayed with cleaning liquid. When the cleaning is completed, clean water is sprayed out through the clean water delivery pipe 4, the cleaning pipe 11, and the cleaning nozzle 14. At this time, multiple first cleaning brushes 10 and second cleaning brushes 21 clean the dripping graduated cylinder again until the cleaning liquid is cleaned, thus cleaning the dripping graduated cylinder. When the cleaned wastewater flows through the hole 15 on the first support plate 12 to the second support plate 16, the wastewater flows out through the drain outlet 22 on the second support plate 16 and the drain pipe 5.

[0039] 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 graduated cylinder for use in a chemical laboratory, comprising a cleaning chamber (1), characterized in that, The cleaning box (1) is movably connected to a top cover (2). An auxiliary component is provided inside the cleaning box (1). The auxiliary component includes multiple limiting rubber rings (13) fixedly connected inside the cleaning box (1) and rubber blocks (9) symmetrically and movably connected inside the cleaning box (1). The two rubber blocks (9) clamp the dripping cylinder inside the cleaning box (1). The limiting rubber rings (13) position and limit the opening of the dripping cylinder. A cleaning component is provided inside the cleaning box (1). The cleaning component includes multiple first cleaning brushes (10) and second cleaning brushes (21) rotatably connected inside the cleaning box (1), and a second gear (19) and a first gear (18) rotatably connected inside the cleaning box (1). The rotation of the second cleaning brush (21) causes the second gear (19) and the first gear (18) to rotate accordingly. The rotation of the second gear (19) and the first gear (18) drives the multiple first cleaning brushes (10) to rotate simultaneously.

2. A dropping graduated cylinder for a chemical laboratory according to claim 1, characterized in that, The cleaning box (1) is fixedly connected to a cleaning tube (11), and multiple support rods (6) are fixedly connected to the inside of the cleaning box (1). Each of the multiple support rods (6) is fixedly connected to a support ring (7).

3. A dropping graduated cylinder for a chemical laboratory according to claim 2, characterized in that, The support ring (7) is internally fixedly connected with a spring (8), and there are two sets of springs (8) symmetrically distributed. The springs (8) are fixedly connected to the rubber block (9).

4. A dropping graduated cylinder for a chemical laboratory according to claim 1, characterized in that, The cleaning box (1) is fixedly connected to a first support plate (12), which is fixedly connected to a limiting rubber ring (13). The upper part of the first support plate (12) has multiple holes (15) and multiple cleaning nozzles (14).

5. A dropping graduated cylinder for a chemical laboratory according to claim 2, characterized in that, A cleaning liquid delivery pipe (3) is fixedly connected to the outside of the cleaning box (1), and a clean water delivery pipe (4) is fixedly connected to the outside of the cleaning box (1). The cleaning liquid delivery pipe (3) and the clean water delivery pipe (4) are connected to the cleaning pipe (11) through a water pipe. The cleaning liquid delivery pipe (3) and the clean water delivery pipe (4) are connected to the cleaning nozzle (14) through a water pipe.

6. A dropping graduated cylinder for a chemical laboratory according to claim 1, characterized in that, The cleaning box (1) is fixedly connected to a second support plate (16). The second support plate (16) has multiple drain ports (22) on the side near the hole (15). The cleaning box (1) is fixedly connected to a drain pipe (5). The drain pipe (5) and the drain ports (22) are connected by a water pipe.

7. A dropping graduated cylinder for a chemical laboratory according to claim 1, characterized in that, The first cleaning brush (10) is rotatably connected to the first support plate (12) and the second support plate (16), and the second cleaning brush (21) is rotatably connected to the first support plate (12) and the second support plate (16). A third gear (20) is fixedly connected to the end of the first cleaning brush (10) and the second cleaning brush (21) away from the cleaning tube (11).

8. A dropping graduated cylinder for a chemical laboratory according to claim 7, characterized in that, A motor (17) is fixedly connected inside the cleaning box (1). The output shaft end of the motor (17) is fixedly connected to the second cleaning brush (21). The second cleaning brush (21) is fixedly connected to the second gear (19) and the first gear (18). The second gear (19) and the first gear (18) mesh with the third gear (20).

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