Titration instrument convenient for adjusting titer

Abstract

The utility model relates to the technical field of laboratory equipment, in particular to a titrimeter convenient to adjust titer, which comprises a base, a vertical column is vertically arranged at the top end of the middle of one side of the base, and a hoop is transversely arranged on the right side of the top end of the vertical column. The adjusting tube, the burette, the movable ring, the clamping head and the clamping groove are matched for use, the burette is jacked from the lower part of the movable ring, and the movable ring compresses the spring II and slides upwards along the outer wall of the adjusting tube until the movable ring is moved away from the outer side end of the clamping head; at the moment, the spring III in a compressed state rebounds the connecting piece and controls the other end of the clamping head to retreat from the clamping groove in the corresponding position, the adjusting tube and the burette are in a movable state, then the internal capacity of the burette can be adjusted by adjusting the position of the burette up and down, the movable ring is loosened after adjustment, and the spring II controls the movable ring to rebound and descend; the end of the clamping head is clamped into the clamping groove in the current position through the movable ring to be locked, and therefore the aim of conveniently and rapidly adjusting the titer is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory equipment, in particular to a titrator which is convenient for adjusting the titration amount. Background Art

[0002] A titrator is a laboratory device used to precisely measure the concentration of a solution. It gradually adds a reagent of known concentration until the reaction in the solution is complete, with an indicator indicating the endpoint. Titrators are commonly used in chemical analysis, environmental monitoring, and biomedical research to ensure accurate and reproducible analytical results.

[0003] For example, the titrator disclosed in the authorization announcement number CN219777594U is convenient for adjusting the titration amount. It includes an experimental stand, a clamping assembly provided on the experimental stand, a mounting seat for mounting and placing experimental test tubes provided on the upper surface of the experimental stand, and a burette clamped on the clamping assembly. The burette includes a reference tube body, a rubber cap provided on one side of the reference tube body, a burette nozzle detachably provided on the side of the reference tube body away from the rubber cap, and a plurality of quantitative tube bodies detachably provided between the reference tube body and the burette nozzle. After adopting the above technical solution, the beneficial effect of the utility model is that during use, the experimenter estimates the amount of liquid required for the experiment and then installs a certain number of quantitative tube bodies between the reference tube body and the burette nozzle, thereby facilitating the experimenter to draw reagents within the required amount range through the burette.

[0004] Although the above patent can install a certain number of quantitative tubes between the reference tube and the dropper, it is cumbersome to add and remove them each time, and a separate storage device is required to store the removed quantitative tubes. Utility Model Content

[0005] The purpose of the present invention is to provide a titrator that is convenient for adjusting the titration amount, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A titrator for facilitating adjustment of titration amount, comprising

[0008] A base, wherein a column is vertically provided at the top of the middle portion of one side of the base, a clamp is horizontally provided on the right side of the top of the column, and an adjusting tube is clamped on the inner side of the end of the clamp;

[0009] A burette is movably installed inside the regulating tube, a balloon is sleeved on the top end of the regulating tube, and a positioning mechanism is provided between the regulating tube and the outer side of the burette.

[0010] Preferably, the positioning mechanism includes a limiting ring which is arranged on the outer side below the burette. An installation ring is arranged above the burette near the limiting ring. A movable ring is movably installed between the outer sides of the limiting ring and the installation ring. A second spring is arranged between the movable ring and the installation ring.

[0011] Preferably, the positioning mechanism further includes a clamping groove which is sequentially arranged on the outer walls on both sides of the burette from top to bottom. Clamping heads are movably installed on the inner walls on both sides above the limiting ring of the adjusting tube. A connecting piece is arranged in the middle of the upper end of the clamping head. The connecting piece is movably connected with the inner wall of the adjusting tube through a third spring.

[0012] Preferably, a guide groove is formed in the middle of the clamp. A dial is movably installed inside the guide groove. A limiting piece is arranged at one end of the dial close to the adjusting tube.

[0013] Preferably, a guide rod is arranged at the end of the dial away from the limiting piece. The other end of the guide rod penetrates through the guide groove and is movably connected with the inside of the clamp. A first spring is arranged between the dial and the guide groove outside the guide rod.

[0014] Preferably, scales are symmetrically arranged at the other two ends of the burette away from the clamping groove.

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

[0016] 1. For this burette which is convenient to adjust the dropping amount, through the cooperation of the adjusting tube, burette, movable ring, clamping head and clamping groove, it jacks up from below the movable ring. The movable ring compresses the second spring and slides upward along the outer wall of the adjusting tube until the movable ring moves away from the outer end of the clamping head. At this time, the compressed third spring rebounds the connecting piece and controls the other end of the clamping head to withdraw from the clamping groove at the corresponding position. At this time, the adjusting tube and the burette are in a movable state. Then, by adjusting the position of the burette up and down, the capacity inside the burette can be adjusted. After the adjustment is completed, release the movable ring. The second spring controls the movable ring to rebound and descend. The end of the clamping head is locked into the clamping groove at the current position through the movable ring, so as to achieve the purpose of conveniently and quickly adjusting the dropping amount.

[0017] 2. For this burette which is convenient to adjust the dropping amount, through the cooperation of the dial, limiting piece and first spring, when installing the adjusting tube, pull the dial back. The dial drives the limiting piece to retreat and compresses the first spring. Then, the adjusting tube is clamped into the inner side of the end of the clamp. Then release the dial. The first spring rebounds to control the limiting piece to reset and be clamped at the protruding position on the outer side of the upper end of the adjusting tube. In this way, the structural stability is higher after installation and it is not easy to fall off during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1Schematic diagram of the overall front view structure of the present utility model;

[0019] Figure 2 Schematic diagram of the burette installation structure of the present utility model;

[0020] Figure 3 Of the present utility model Figure 1 Enlarged schematic diagram at position A;

[0021] Figure 4 Of the present utility model Figure 2 Enlarged schematic diagram at position B.

[0022] In the figure: 1, base; 2, column; 3, clamp; 4, adjusting tube; 5, burette; 6, bulb; 7, limiting ring; 8, mounting ring; 9, movable ring; 10, spring two; 11, card slot; 12, card head; 13, connecting piece; 14, spring three; 15, guide groove; 16, dial; 17, limiting piece; 18, guide rod; 19, spring one; 20, scale. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figures 1-4 shown, a technical solution provided by the present utility model:

[0025] A burette that is convenient to adjust the titration volume, including a base 1. A column 2 is vertically arranged at the top of the middle part on one side of the base 1. A clamp 3 is horizontally arranged on the right side of the top of the column 2. An adjusting tube 4 is clamped inside the end of the clamp 3. A burette 5 is movably installed inside the adjusting tube 4. A bulb 6 is sleeved on the top of the adjusting tube 4. A positioning mechanism is arranged between the outer sides of the adjusting tube 4 and the burette 5. The positioning mechanism includes a limiting ring 7. The limiting ring 7 is arranged on the outer side below the burette 5. An installation ring 8 is arranged above the burette 5 close to the limiting ring 7. A movable ring 9 is movably installed between the outer sides of the limiting ring 7 and the installation ring 8 of the burette 5. A spring two 10 is arranged between the movable ring 9 and the installation ring 8. The positioning mechanism further includes a card slot 11. The card slot 11 is sequentially arranged on the outer walls of both sides of the burette 5 from top to bottom. Card heads 12 are movably installed on both inner walls above the adjusting tube 4 close to the limiting ring 7. A connecting piece 13 is arranged in the middle of the upper end of the card head 12. The connecting piece 13 is movably connected to the inner wall of the adjusting tube 4 through a spring three 14. Scales 20 are symmetrically arranged at the other two ends of the burette 5 away from the card slot 11;

[0026] In this embodiment, during adjustment, it is lifted from below the movable ring 9. The movable ring 9 compresses the second spring 10 and slides upward along the outer wall of the adjusting tube 4 until the movable ring 9 moves away from the outer end of the chuck 12. At this time, the compressed third spring 14 rebounds the connecting member 13 and controls the other end of the chuck 12 to withdraw from the corresponding position of the card slot 11. At this time, the adjusting tube 4 and the burette 5 are in a movable state. Then, by adjusting the position of the burette 5 up and down, the volume inside the burette 5 can be adjusted. After the adjustment is completed, the movable ring 9 is released, and the second spring 10 controls the movable ring 9 to rebound and descend. The end of the chuck 12 is clamped into the card slot 11 at the current position through the movable ring 9 to lock, so as to achieve the purpose of facilitating the quick adjustment of the dropping amount.

[0027] As Figure 1 and Figure 3 shown, a guide groove 15 is provided in the middle of the clamp 3. A dial 16 is movably installed inside the guide groove 15. A limiting member 17 is provided at one end of the dial 16 close to the adjusting tube 4. A guide rod 18 is provided at the other end of the dial 16 away from the limiting member 17. The other end of the guide rod 18 penetrates through the guide groove 15 and is movably connected to the inside of the clamp 3. A first spring 19 is provided between the dial 16 and the guide groove 15 outside the guide rod 18.

[0028] In this embodiment, when installing the adjusting tube 4, pull the dial 16 backward. The dial 16 drives the limiting member 17 to retreat and compresses the first spring 19. Then, the adjusting tube 4 is clamped into the inner side of the end of the clamp 3. Then, release the dial 16, and the first spring 19 rebounds to control the limiting member 17 to reset and be clamped at the protruding position outside the upper end of the adjusting tube 4. In this way, the structural stability after installation is higher, and it is not easy to fall off during use.

[0029] Working principle: When adjusting the dropping amount inside the burette 5, it is lifted from below the movable ring 9. The movable ring 9 compresses the second spring 10 and slides upward along the outer wall of the adjusting tube 4 until the movable ring 9 moves away from the outer end of the chuck 12. At this time, the compressed third spring 14 rebounds the connecting member 13 and controls the other end of the chuck 12 to withdraw from the corresponding position of the card slot 11. At this time, the adjusting tube 4 and the burette 5 are in a movable state. Then, by adjusting the position of the burette 5 up and down, the volume inside the burette 5 can be adjusted. After the adjustment is completed, the movable ring 9 is released, and the second spring 10 controls the movable ring 9 to rebound and descend. The end of the chuck 12 is clamped into the card slot 11 at the current position through the movable ring 9 to lock; when installing the adjusting tube 4, pull the dial 16 backward. The dial 16 drives the limiting member 17 to retreat and compresses the first spring 19. Then, the adjusting tube 4 is clamped into the inner side of the end of the clamp 3. Then, release the dial 16, and the first spring 19 rebounds to control the limiting member 17 to reset and be clamped at the protruding position outside the upper end of the adjusting tube 4.

[0030] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A titrator that is convenient for adjusting the titration volume, characterized in that: including a base (1), a vertical column (2) is vertically arranged at the top of the middle part of one side of the base (1), a clamp (3) is horizontally arranged on the right side of the top of the vertical column (2), and an adjusting pipe (4) is clamped inside the end of the clamp (3); a burette (5) is movably installed inside the adjusting pipe (4), a balloon (6) is sleeved on the top of the adjusting pipe (4), and a positioning mechanism is arranged between the outer sides of the adjusting pipe (4) and the burette (5).

2. The titrator for facilitating the adjustment of the titration amount according to claim 1, characterized in that: The positioning mechanism includes a limiting ring (7), the limiting ring (7) is arranged on the outer side below the burette (5), an installation ring (8) is arranged above the burette (5) close to the limiting ring (7), a movable ring (9) is movably installed between the outer sides of the limiting ring (7) and the installation ring (8) of the burette (5), and a second spring (10) is arranged between the movable ring (9) and the installation ring (8).

3. The titrator for facilitating the adjustment of the titration volume according to claim 2, wherein: The positioning mechanism further includes a card slot (11), the card slot (11) is sequentially arranged on the outer walls of both sides of the burette (5) from top to bottom, clamping heads (12) are movably installed on the inner walls of both sides above the adjusting pipe (4) close to the limiting ring (7), a connecting piece (13) is arranged in the middle of the upper end of the clamping head (12), and the connecting piece (13) is movably connected with the inner wall of the adjusting pipe (4) through a third spring (14).

4. A titrator for facilitating the adjustment of the titration amount according to claim 1, characterized in that: a guide groove (15) is formed in the middle of the clamp (3), a dial (16) is movably installed inside the guide groove (15), and a limiting piece (17) is arranged at one end of the dial (16) close to the adjusting pipe (4).

5. The titrator for facilitating the adjustment of the titration amount according to claim 4, wherein: a guide rod (18) is arranged at the end of the dial (16) away from the limiting piece (17), the other end of the guide rod (18) penetrates through the guide groove (15) and is movably connected with the inside of the clamp (3), and a first spring (19) is arranged between the dial (16) and the guide groove (15) outside the guide rod (18).

6. The titrator for facilitating the adjustment of the titration amount according to claim 3, wherein: scales (20) are symmetrically arranged at the other two ends of the burette (5) away from the card slot (11).

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