Potentiometric titrator with burette monitoring device

Abstract

The utility model relates to the technical field of potentiometric titration instruments, in particular to a potentiometric titration instrument with a burette monitoring device, which comprises a titration instrument body, a titration table is arranged at the upper end of one side of the titration instrument body, a placement groove is arranged in the middle of the right side of the titration table, and a clamping mechanism is arranged between the placement groove and the titration table; the sleeve is movably mounted in the middle of the left side of the titration table. During use, as the two sides of the first rack are meshed with the driving gear and the driven gear respectively, the driven gear is driven to rotate and controls the second rack on the other side to move in the opposite direction, the push rod is pushed through the connecting pieces on the two sides, and the push rod controls the first clamping plate to tighten the spiral spring; after being compressed, the spiral spring drives the second clamping plate to adaptively clamp the titration container, so that the titration container can be quickly clamped, and after an experiment is completed, the sleeve is reversed to reset the spiral spring, so that the second clamping plate can be loosened, and the operation is convenient during use.

Description

Technical Field

[0001] The utility model relates to the technical field of potentiometric titrators, in particular to a potentiometric titrator with a burette monitoring device. Background Art

[0002] A potentiometric titrator is an instrument used to accurately determine the concentration of chemical substances in a solution. It performs titration analysis by monitoring changes in potential (voltage) to determine the endpoint of a reaction. Its main principle is based on the change in electrode potential during a chemical reaction. It is typically used in conjunction with a standard electrode and an indicator electrode to perform the measurement.

[0003] At present, some titration solutions are easily decomposed by light, such as silver nitrate solution, which needs to be stored away from light. Usually, a brown burette and titration container are needed for titration operation. At this time, the staff cannot observe the titration situation in the titration container, which is not only easy to cause titration errors, but also affect the judgment of the titration result data. Utility Model Content

[0004] The purpose of the utility model is to provide a potentiometric titrator with a burette monitoring device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A potentiometric titrator with a burette monitoring device, comprising

[0007] A titrator body, wherein a titration platform is provided at an upper end of one side of the titration platform, a placement groove is provided in the middle of the right side of the titration platform, and a clamping mechanism is provided between the placement groove and the titration platform;

[0008] A sleeve, the sleeve being movably mounted on the left middle portion of the titration table, a movable sleeve being movably mounted on the upper end of the sleeve, and an adjustment mechanism being provided between the sleeve and the movable sleeve;

[0009] The mounting frame is fixedly mounted on the right side of the top end of the movable sleeve, a hanger is provided in the middle of the mounting frame, and a camera is fixedly mounted on the bottom end of the hanger.

[0010] Preferably, the clamping mechanism includes a push rod, which is movably mounted on both sides of the placement slot, and a first clamping plate is provided at one end of each of the two push rods close to the placement slot, and a second clamping plate is movably mounted on the middle part of the front of the first clamping plate via a coil spring;

[0011] Preferably, the clamping mechanism further comprises a driven gear, the driven gear being movably mounted on the inner middle portion of the titration table, the two sides of the driven gear being respectively meshed with a rack 1 and a rack 2, and the outer ends of the rack 1 and the rack 2 are both provided with a connecting piece fixedly connected to the push rod;

[0012] Preferably, guide rods are provided at both ends of the interior of the titration platform, and the middle portion of the connecting piece is movably connected to the guide rods;

[0013] Preferably, the bottom end of the sleeve passes through the titration table and is fixedly connected to a driving gear, and the end of the rack away from the driven gear is meshed with the driving gear;

[0014] Preferably, the adjustment mechanism includes a positioning hole, which is arranged on the outer wall of one side of the movable sleeve from top to bottom, and a spring pull rod is movably installed on the outer upper end of one side of the sleeve close to the positioning hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. A potentiometric titrator with a burette monitoring device. When in use, since the two sides of the rack 1 are respectively engaged with the driving gear and the driven gear, the driven gear is driven to rotate, and the driven gear controls the rack 2 on the other side to move toward each other, and then pushes the push rod through the connecting parts on both sides. The push rod controls the clamping plate 1 to tighten the coil spring. After the coil spring is compressed, it drives the clamping plate 2 to adapt and clamp the titration container, which facilitates rapid clamping of the titration container. When the experiment is completed, the sleeve is reversed to reset the coil spring, thereby loosening the clamping plate 2. This facilitates operation during use.

[0017] 2. This potentiometric titrator with a burette monitoring device, when the height needs to be adjusted, pull the spring rod outward, the end of the spring rod withdraws from the positioning hole at the current position, then move the movable sleeve up and down to the appropriate height and stop, then release the spring rod, the end of the spring rod rebounds and gets locked into the positioning hole at the current position, thereby achieving the purpose of facilitating height adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a top view of the structure of the titration platform of the present invention;

[0020] Figure 3 For the utility model Figure 1 A in the middle is an enlarged schematic diagram;

[0021] Figure 4 For the utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0022] In the figure: 1. Titrator body; 2. Titration table; 3. Placement slot; 4. Sleeve; 5. Movable sleeve; 6. Mounting bracket; 7. Hanger; 8. Camera; 9. Push rod; 10. Clamp 1; 11. Coil spring; 12. Clamp 2; 13. Driven gear; 14. Rack 1; 15. Rack 2; 16. Connector; 17. Guide rod; 18. Driving gear; 19. Positioning hole; 20. Spring pull rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1-4 As shown, the utility model provides a technical solution:

[0025] A potentiometric titrator with a burette monitoring device, comprising a titrator body 1, a titration platform 2 is provided at the upper end of one side of the titrator body 1, a placement slot 3 is provided in the middle of the right side of the titration platform 2, a clamping mechanism is provided between the placement slot 3 and the titration platform 2, the clamping mechanism comprises a push rod 9, the push rod 9 is movably mounted on both sides of the placement slot 3, the two push rods 9 are each provided with a clamping plate 10 at one end close to the placement slot 3, the front middle part of the clamping plate 10 is movably mounted with a clamping plate 2 12 via a coil spring 11, and the clamping mechanism also comprises a driven gear Wheel 13, driven gear 13 is movably mounted on the inner middle part of the titration platform 2, and rack 14 and rack 2 15 are respectively engaged on both sides of the driven gear 13, and the outer ends of rack 14 and rack 2 15 are provided with connecting pieces 16 fixedly connected to the push rod 9. Guide rods 17 are provided at both ends of the interior of the titration platform 2, and the middle part of the connecting piece 16 is movably connected to the guide rod 17. The bottom end of the sleeve 4 passes through the titration platform 2 and is fixedly connected to the driving gear 18. The end of the rack 14 away from the driven gear 13 is engaged with the driving gear 18;

[0026] When the cylinder 12 is in the upright position, the spring 20 is pushed and the spring 20 is released, and the cylinder 4 is automatically adjusted to the center position of the cylinder 12. When the cylinder 12 is in the upright position, the spring 20 is pushed and the spring 20 is released, and the cylinder 4 is automatically adjusted to the center position of the cylinder 12. When the cylinder 12 is in the upright position, the spring 20 is pushed and the spring 20 is released, and the cylinder 4 is automatically adjusted to the center position of the cylinder 12. When the cylinder 12 is in the upright position, the spring 20 is pushed and the spring 20 is released, and the cylinder 4 is automatically adjusted to the center position of the cylinder 12. When the cylinder 12 is in the upright position, the spring 20 is pushed and the spring 20 is released, and the cylinder 4 is automatically adjusted to the center position of the cylinder 12.

[0027] like Figure 3 As shown, the sleeve 4 is movably mounted on the middle left side of the titration table 2, and a movable sleeve 5 is movably mounted on the upper end of the sleeve 4. An adjustment mechanism is provided between the sleeve 4 and the movable sleeve 5, and the adjustment mechanism includes a positioning hole 19, which is provided on the outer wall of one side of the movable sleeve 5 from top to bottom. A spring pull rod 20 is movably mounted on the upper end of the outer side of the sleeve 4 near the positioning hole 19, and a mounting frame 6 is fixedly mounted on the right side of the top of the movable sleeve 5. A hanger 7 is provided in the middle of the mounting frame 6, and a camera 8 is fixedly mounted on the bottom end of the hanger 7.

[0028] In this embodiment, the device is provided with a mounting bracket 6 at the top of the movable sleeve 5, the mounting bracket 6 is used to support the burette, and a camera 8 is installed in the middle of the mounting bracket 6 through a hanger 7, and the camera 8 is used to monitor the titration process. When the height needs to be adjusted, the spring pull rod 20 is pulled outward, and the end of the spring pull rod 20 withdraws from the positioning hole 19 at the current position, and then the movable sleeve 5 is moved up and down to the appropriate height and then stopped, and then the spring pull rod 20 is released, and the end of the spring pull rod 20 rebounds and is locked in the positioning hole 19 at the current position, thereby achieving the purpose of facilitating height adjustment.

[0029] Working principle: When in use, the titration container is placed in the placement slot 3. After the titration container opens the two splints 2 12, it is automatically centered and adjusted to the center position of the placement slot 3, and then the spring pull rod 20 is pushed. The spring pull rod 20 controls the sleeve 4 to rotate 90°. When the sleeve 4 rotates, the driving gear 18 at the bottom is driven to rotate synchronously. The driving gear 18 drives the rack 14 to move horizontally. Since the two sides of the rack 14 are respectively engaged with the driving gear 18 and the driven gear 13, the driven gear 13 is driven to rotate, and the driven gear 13 controls the rack 2 15 on the other side to move toward each other, and then pushes the push rod 9 through the connecting pieces 16 on both sides. The push rod 9 controls the splint 10 to tighten the coil spring 11. After the coil spring 11 is compressed, it drives the splint 2 12 to adapt and clamp the titration container. When the experiment is completed, the sleeve 4 is reversed to reset the coil spring 11, so that the splint 2 12 can be released.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A potentiometric titrator with a burette monitoring device, characterized in that: include A titrator body (1), wherein a titration platform (2) is provided at an upper end of one side of the titration platform (1), a placement groove (3) is provided in the middle of the right side of the titration platform (2), and a clamping mechanism is provided between the placement groove (3) and the titration platform (2); A sleeve (4), the sleeve (4) is movably mounted on the left middle portion of the titration platform (2), a movable sleeve (5) is movably mounted on the upper end of the sleeve (4), and an adjustment mechanism is provided between the sleeve (4) and the movable sleeve (5); A mounting frame (6) is fixedly mounted on the right side of the top end of the movable sleeve (5); a hanger (7) is provided in the middle of the mounting frame (6); a camera (8) is fixedly mounted at the bottom end of the hanger (7).

2. A potentiometric titrator with a burette monitoring device according to claim 1, characterized in that: The clamping mechanism includes a push rod (9), which is movably installed on both sides of the placement groove (3). One end of the two push rods (9) close to the placement groove (3) is provided with a clamping plate (10), and the middle part of the front of the clamping plate (10) is movably installed with a clamping plate (12) through a coil spring (11).

3. A potentiometric titrator with a burette monitoring device according to claim 2, characterized in that: The clamping mechanism also includes a driven gear (13), which is movably mounted on the inner middle portion of the titration platform (2), and two racks (14) and (15) are respectively engaged on both sides of the driven gear (13), and a connecting piece (16) fixedly connected to the push rod (9) is provided at one end of the outer side of the rack (14) and the rack (15).

4. A potentiometric titrator with a burette monitoring device according to claim 3, characterized in that: Guide rods (17) are provided at both ends of the interior of the titration platform (2), and the middle portion of the connecting member (16) is movably connected to the guide rods (17).

5. The potentiometric titrator with a burette monitoring device according to claim 3, characterized in that: The bottom end of the sleeve (4) passes through the titration platform (2) and is fixedly connected to a driving gear (18), and the end of the rack (14) away from the driven gear (13) is meshed with the driving gear (18).

6. The potentiometric titrator with a burette monitoring device according to claim 1, characterized in that: The adjustment mechanism includes a positioning hole (19), which is arranged on the outer wall of one side of the movable sleeve (5) from top to bottom. A spring pull rod (20) is movably installed on the outer upper end of one side of the sleeve (4) close to the positioning hole (19).

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