Special leakage-proof titration equipment for chemical laboratory

Abstract

The utility model relates to the field of chemical method measurement, and discloses special leak-proof titration equipment for a chemical laboratory, which comprises a titrator, a dropper is mounted outside the titrator, a connecting ring is fixedly connected outside the dropper, a first spring is sleeved outside the connecting ring, a sliding ring is slidably connected outside the connecting ring, and a second spring is sleeved outside the sliding ring. A plurality of notches are formed in the inner wall of the connecting ring, movable balls are movably connected to the inner walls of the notches, a pushing shaft is slidably connected to the inner wall of the connecting ring, and a channel is formed in the outer portion of the pushing shaft. According to the utility model, the spring I is subjected to elastic potential energy for compression, accumulation and resetting, and the spring I resets to push the sliding ring to be in close contact with the plurality of movable balls, so that the rubber plug can be ensured to be tightly attached to the tail end of the dropper, liquid is effectively prevented from leaking in a non-use state, and the safety and cleanness of an experimental environment are kept.

Description

Technical Field

[0001] This utility model relates to the field of chemical method measurement, and in particular to a leak-proof titration device for chemical laboratories. Background Technology

[0002] A burette titration system for chemical laboratories is a high-precision laboratory instrument primarily used for accurately measuring the volume and concentration of solutions. This equipment employs a specially designed burette and valve system, typically equipped with precise graduations down to the microliter level, making it suitable for chemical experiments requiring rigorous quantitative analysis.

[0003] Leak-proof titration equipment for chemical laboratories is typically designed with precision to ensure the accuracy and safety of experiments. These devices are generally equipped with high-precision burettes with clear graduations down to the microliter level to meet the needs of rigorous quantitative analysis.

[0004] In the prior art, the titrator prevents leakage by attaching a rubber stopper to the end of the dropper when not in use and connecting one end of the rubber stopper to the titration equipment. However, the rubber stopper is prone to leakage due to external traction or improper plugging during operation. Therefore, a leak-proof titration device specifically for chemical laboratories is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a leak-proof titration device for chemical laboratories, aiming to improve the existing technology where a rubber stopper is installed to prevent leakage when the titrator is not in use, but the rubber stopper is easily affected by external factors or improper operation, resulting in poor leak-proof effect.

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

[0007] A leak-proof titration device for chemical laboratories includes a titrator, a dropper mounted externally on the titrator, a connecting ring fixedly connected to the outside of the dropper, a spring sleeved on the outside of the connecting ring, a sliding ring slidably connected to the outside of the connecting ring, multiple slots on the inner wall of the connecting ring, movable balls movably connected to the inner walls of each slot, a push shaft slidably connected to the inner wall of the connecting ring, a channel on the outside of the push shaft, and a movable component detachably connected to the outside of the titrator for quantitative transfer of the titrant.

[0008] As a further description of the above technical solution:

[0009] The moving component includes a collection box, a lid fixedly connected to the top of the collection box, a rotating shaft rotatably connected to the top of the lid, a handle fixedly connected to the other end of the rotating shaft, a fixing block fixedly connected to the outside of the titrator, and the outside of the collection box slidably connected to the inner wall of the fixing block.

[0010] As a further description of the above technical solution:

[0011] A sliding box is fixedly connected to the outside of the rotating shaft, and a linkage box is slidably connected to the outside of the sliding box.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the sliding box is fixedly connected to a plurality of springs, and the other end of the plurality of springs is fixedly connected to the inner wall of the linkage box.

[0014] As a further description of the above technical solution:

[0015] The bottom of the linkage box is slidably connected to the inner wall of the cover, and a connecting groove is provided inside the sliding box, with the other end of the connecting groove located inside the linkage box.

[0016] As a further description of the above technical solution:

[0017] A rubber stopper is fixedly connected to the other end of the push shaft, and a traction rope is fixedly connected to the other end of the rubber stopper. The other end of the traction rope is installed on the outside of the titrator.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the channel is in contact with the outside of the plurality of movable balls, and the channel is annular.

[0020] As a further description of the above technical solution:

[0021] The outer part of the spring is slidably connected to the inner wall of the sliding ring, and the outer part of the movable ball is in contact with the inner wall of the sliding ring.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the position change of the sliding ring can compress the first spring. The first spring is compressed and accumulates elastic potential energy for reset. The reset of the first spring pushes the sliding ring to make close contact with multiple movable balls, which can ensure that the rubber stopper fits tightly against the end of the dropper, effectively preventing liquid from dripping when not in use, thereby maintaining the safety and cleanliness of the experimental environment.

[0024] 2. In this utility model, under the action of multiple springs, there is a counteracting force on both the sliding box and the linkage box, which makes the sliding box, linkage box and lid contact more tightly, thereby protecting the liquid inside the collection box. The liquid to be taken is quantitatively stored and sealed, and its performance remains stable during the transfer process. Attached Figure Description

[0025] Figure 1 This is a perspective view of the leak-proof titration device for chemical laboratories proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the locking component of the leak-proof titration device for chemical laboratories proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the sealing assembly of the leak-proof titration device for chemical laboratories proposed in this utility model;

[0028] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0030] Legend:

[0031] 1. Titrator; 2. Dropper; 3. Spring 1; 4. Sliding ring; 5. Connecting ring; 6. Moving ball; 7. Push shaft; 8. Rubber stopper; 9. Traction rope; 10. Collection box; 11. Lid; 12. Handle; 13. Sliding box; 14. Linkage box; 15. Spring 2; 16. Connecting groove; 17. Fixing block; 18. Rotating shaft. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a leak-proof titration device for chemical laboratories, comprising a titrator 1, with a dropper 2 mounted externally on the titrator 1, the titrator 1 supporting and fixing the position of the dropper 2. A connecting ring 5 is fixedly connected externally to the dropper 2, fixing the position of the dropper 2 relative to the connecting ring 5. A spring 3 is sleeved externally on the connecting ring 5, fixing the position of the connecting ring 5 relative to the spring 3. A sliding ring 4 is slidably connected externally to the connecting ring 5, fixing the sliding position of the connecting ring 5 relative to the sliding ring 4. The spring 3 is slidably connected externally to the inner wall of the sliding ring 4, fixing the sliding position of the sliding ring 4 relative to the spring 3; changes in the position of the spring 3 can cause changes in the position of the sliding ring 4. Multiple slots are formed on the inner wall of the connecting ring 5, providing opening positions for the multiple slots.

[0034] Multiple slots have movable balls 6 movably connected to their inner walls (as shown in the attached image). Figure 2 The groove serves to fix the movable ball 6 in its fixed position. When squeezed or pushed, the movable ball 6 can move up and down along the inner wall of the groove, sometimes rolling and sometimes sliding. The outer surface of the movable ball 6 is in contact with the inner wall of the sliding ring 4, and multiple movable balls 6 limit the position of the sliding ring 4. A push shaft 7 is slidably connected to the inner wall of the connecting ring 5, and the connecting ring 5 fixes the sliding position of the push shaft 7. A channel is formed on the outer surface of the push shaft 7, providing a space for the push shaft 7 to form the channel.

[0035] The inner wall of the channel contacts the outer surface of multiple movable balls 6, and the channel engages with the multiple movable balls 6, thus limiting their position. The channel is annular, allowing the multiple movable balls 6 to be neatly arranged along the inner wall of the channel. A rubber stopper 8 is fixedly connected to the other end of the push shaft 7, and the position of the push shaft 7 fixes the position of the rubber stopper 8. A traction rope 9 is fixedly connected to the other end of the rubber stopper 8, and the traction rope 9 fixes the position of the rubber stopper 8. The other end of the traction rope 9 is installed on the outside of the titrator 1 (as shown in the attached diagram). Figure 1 The titrator 1 serves to fix one end of the traction rope 9 in place. The external sliding connection of the collection box 10 to the inner wall of the fixing block 17 (as shown in the attached figure) Figure 1 The fixing block 17 is made of tough rubber and serves to fix the position of the collection box 10.

[0036] Reference Figure 3 and Figure 5The titrator 1 has a detachable external connection to a moving assembly for quantitatively transferring the titrant liquid, and the titrator 1 is positioned relative to the moving assembly. The moving assembly includes a collection box 10, with a lid 11 fixedly connected to its top, thus fixing the collection box 10 in place. A rotating shaft 18 is rotatably connected to the top of the lid 11, fixing the rotational position of the lid 11 relative to the rotating shaft 18. A handle 12 is fixedly connected to the other end of the rotating shaft 18. Rotating the handle 12 (as shown in the attached diagram)... Figure 3 The rotation of handle 12 causes the rotating shaft 18 to rotate. A fixing block 17 is fixedly connected to the outside of the titrator 1, which supports and fixes the position of the titrator 1. A sliding box 13 is fixedly connected to the outside of the rotating shaft 18, and the rotation of the rotating shaft 18 causes the sliding box 13 to rotate.

[0037] A linkage box 14 is slidably connected to the outside of the sliding box 13. Rotation of the sliding box 13 causes the linkage box 14 to rotate. Multiple springs 15 are fixedly connected to the inner wall of the sliding box 13, and the sliding box 13 maintains the position of the springs 15. The other ends of the springs 15 are fixedly connected to the inner wall of the linkage box 14 (as shown in the attached figure). Figure 5 The linkage box 14 serves to fix the other end of multiple springs 15. The bottom of the linkage box 14 is slidably connected to the inner wall of the cover 11, and the cover 11 serves to fix the sliding position of the linkage box 14. The sliding box 13 has a connecting groove 16 inside, which provides a space for the sliding box 13 to open. The other end of the connecting groove 16 is opened inside the linkage box 14, which provides a space for the connecting groove 16 to open.

[0038] Working principle: Pushing the rubber stopper 8 causes the position of the push shaft 7 to change, allowing the push shaft 7 to squeeze multiple movable balls 6 out of the inner wall of the connecting ring 5. This allows the multiple movable balls 6 to engage between the sliding ring 4 and the connecting ring 5. The multiple movable balls 6 push the sliding ring 4 towards the dropper 2, and the position change of the sliding ring 4 compresses the spring 3. The spring 3, under compression, accumulates elastic potential energy for reset. The reset spring 3 pushes the sliding ring 4 into close contact with the multiple movable balls 6, ensuring that the rubber stopper 8 fits tightly against the end of the dropper. This effectively prevents liquid from leaking when not in use, thus maintaining the safety and cleanliness of the experimental environment. The locking structure also reduces the displacement or detachment of the rubber stopper 8 due to external traction or improper operation, improving the stability and reliability of the titration equipment.

[0039] Rotating handle 12 causes rotating shaft 18 to rotate, which in turn causes sliding box 13 to rotate, and vice versa. When connecting groove 16 connects with the slot inside collection box 10, liquid can be fed into or removed from collection box 10. Otherwise, the action of multiple springs 15 creates opposing forces on sliding box 13 and connecting box 14, making them more tightly connected to cover 11, thus protecting the liquid inside collection box 10. The liquid to be used is stored quantitatively and sealed, maintaining its performance stability during transfer. Quantitative storage ensures accurate liquid quantity for each use, and sealing effectively prevents contact between the liquid and the external environment, avoiding contamination, evaporation, or deterioration, and maintaining liquid performance stability during transfer.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leak-proof titration device for chemical laboratories, comprising a titrator (1), characterized in that: The titrator (1) is equipped with a dropper (2) on its outside. A connecting ring (5) is fixedly connected to the outside of the dropper (2). A spring (3) is sleeved on the outside of the connecting ring (5). A sliding ring (4) is slidably connected to the outside of the connecting ring (5). Multiple slots are opened on the inner wall of the connecting ring (5). Movable balls (6) are movably connected to the inner wall of each of the multiple slots. A push shaft (7) is slidably connected to the inner wall of the connecting ring (5). A channel is opened on the outside of the push shaft (7). A movable component for quantitatively transferring the titrated liquid is detachably connected to the outside of the titrator (1).

2. The leak-proof titration equipment for chemical laboratories according to claim 1, characterized in that: The moving component includes a collection box (10), a lid (11) is fixedly connected to the top of the collection box (10), a rotating shaft (18) is rotatably connected to the top of the lid (11), a handle (12) is fixedly connected to the other end of the rotating shaft (18), a fixing block (17) is fixedly connected to the outside of the titrator (1), and the outside of the collection box (10) is slidably connected to the inner wall of the fixing block (17).

3. The leak-proof titration equipment for chemical laboratories according to claim 2, characterized in that: The rotating shaft (18) is fixedly connected to a sliding box (13), and the sliding box (13) is slidably connected to a linkage box (14).

4. The leak-proof titration equipment for chemical laboratories according to claim 3, characterized in that: The inner wall of the sliding box (13) is fixedly connected with a plurality of springs (15), and the other end of the plurality of springs (15) is fixedly connected to the inner wall of the linkage box (14).

5. The leak-proof titration equipment for chemical laboratories according to claim 4, characterized in that: The bottom of the linkage box (14) is slidably connected to the inner wall of the cover (11), and the interior of the sliding box (13) is provided with a connecting groove (16), the other end of which is located inside the linkage box (14).

6. The leak-proof titration equipment for chemical laboratories according to claim 1, characterized in that: A rubber plug (8) is fixedly connected to the other end of the push shaft (7), and a traction rope (9) is fixedly connected to the other end of the rubber plug (8). The other end of the traction rope (9) is installed outside the titrator (1).

7. The leak-proof titration equipment for chemical laboratories according to claim 1, characterized in that: The inner wall of the channel is in contact with the outside of the plurality of movable balls (6), and the channel is annular.

8. The leak-proof titration equipment for chemical laboratories according to claim 1, characterized in that: The outer side of the spring (3) is slidably connected to the inner wall of the sliding ring (4), and the outer side of the movable ball (6) is in contact with the inner wall of the sliding ring (4).

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