Quantitative titration device for chemical component inspection and analysis

Abstract

The utility model discloses a quantitative titration device for chemical component inspection and analysis, which belongs to the technical field of chemical detection, and comprises a bottom plate and a rotating rod, the left side of the top of the bottom plate is fixedly connected with an L-shaped frame, the right side of the top of the L-shaped frame is fixedly connected with a liquid storage tank, the bottom of the liquid storage tank is communicated with a burette, and the burette is communicated with the rotating rod. A group of vertical plates are arranged at one end of the rotating rod and located in the inner cavity of the burette, and a groove is formed between the two vertical plates. The motor drives the main belt pulley to rotate, the main belt pulley drives the auxiliary belt pulley to synchronously rotate under the cooperation of the synchronous belt, the auxiliary belt pulley drives the rotating rod to rotate, the rotating rod drives the vertical plate and the circular plate to rotate, and in the rotating process, the position containing a solution can be changed; the volume of the groove is fixed, so that the purpose of quantitative titration is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical detection technical field, concretely relates to a quantitative titration device for chemical component inspection and analysis. BACKGROUND

[0002] Chemistry is a natural science that studies the properties, composition, structure, change, use, method of making and the law of matter change, so a large number of experimental activities will be involved in the study of matter, and in the experiment, the related chemical reagents need to be pushed quantitatively and equidistantly to complete the experiment, and the titration device is often used to push the chemical liquid reagent.

[0003] The existing titration device is a burette, which needs to be manually operated during use, and manual operation is difficult to accurately control quantitatively due to the inability to control the force, and the burette is prone to backflow, which causes the titrated liquid to have a large error, affecting the accuracy of subsequent data, therefore, the utility model provides a quantitative titration device for chemical component inspection and analysis. SUMMARY

[0004] The utility model discloses a quantitative titration device for chemical component inspection and analysis, which solves the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a quantitative titration device for chemical component inspection and analysis, including bottom plate and rotation lever, the left side of the top of bottom plate is fixedly connected with L type frame, the right side of the top of L type frame is fixedly connected with liquid storage tank, the bottom of liquid storage tank is connected with burette, one group of vertical boards is arranged in the inner chamber of burette and located at one end of rotation lever, and the recess is formed between the two vertical boards, the both sides of vertical board are fixedly connected with round plate, the left side of rotation lever surface is fixedly connected with auxiliary belt pulley, the top of L type frame and the left side of liquid storage tank are fixedly installed with motor, the output of motor is fixedly connected with main belt pulley, the surface of main belt pulley and auxiliary belt pulley is connected through synchronous belt drive.

[0006] By the above scheme, the main belt pulley is driven to rotate by the motor, the auxiliary belt pulley is driven to rotate synchronously by the main belt pulley under the cooperation of the synchronous belt, the rotation lever is driven to rotate by the auxiliary belt pulley, the vertical board and the round plate are driven to rotate by the rotation lever, the position of the solution is changed during rotation, until the solution is transported to the external container along the burette, and the titration work is completed, the capacity of the recess is fixed, so that the purpose of quantitative titration is achieved.

[0007] As a preferred embodiment of the quantitative titration device for chemical component inspection and analysis, the front surface and the back surface of the bottom plate are fixedly connected with mounting plates on both sides, and the number of mounting plates is four.

[0008] By the arrangement of the mounting plate, the bottom plate can be quickly disassembled at the designated position, and the disassembling efficiency is greatly improved.

[0009] As a preferred embodiment of the quantitative titration device for chemical component inspection and analysis, the bottom of the left side of the L-shaped frame is fixedly connected with a power supply box, and the inner cavity of the power supply box is provided with a storage battery.

[0010] By the arrangement of the storage battery, the power supply equipment is powered, and the normal operation of the power supply equipment is maintained.

[0011] As a preferred embodiment of the quantitative titration device for chemical component inspection and analysis, the left side of the L-shaped frame is fixedly connected with a PLC controller, and the PLC controller and the motor are electrically connected through a connecting line.

[0012] According to the above scheme, because the PLC controller and the motor are electrically connected, the PLC controller sends a series of high and low level PWM signals through the connecting line to adjust the voltage of the motor, so as to change the rotating speed.

[0013] As a preferred embodiment of the quantitative titration device for chemical component inspection and analysis, the other end of the rotating rod is movably connected with a bearing, and one side of the bearing is fixedly connected to the inner side of the L-shaped frame.

[0014] According to the above scheme, by arranging the bearing, the other end of the rotating rod is limited, so as to prevent the other end of the rotating rod from being in a suspended state, and further prevent the shaking.

[0015] As a preferred embodiment of the quantitative titration device for chemical component inspection and analysis, the right side of the top of the bottom plate is fixedly connected with a carrier, and the carrier is provided with a limiting groove.

[0016] According to the above scheme, by arranging the limiting groove, the external container is clamped to prevent the external container from being tilted during titration.

[0017] As a preferred embodiment of the quantitative titration device for chemical component inspection and analysis, the surface of the liquid storage tank is provided with a transparent observation window, and the surface of the liquid storage tank and located on the left side of the transparent observation window is provided with a scale.

[0018] According to the above scheme, by arranging the scale, the output solution amount can be read in real time, and the accuracy of titration amount is further improved.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model discloses a main pulley is driven to carry out rotation through motor, drives the synchronous rotation of auxiliary pulley through the cooperation of main pulley under synchronous belt, drives the rotation of rotating rod through auxiliary pulley, drives the rotation of vertical board and round plate through rotating rod, in the process of rotation, the position of the solution containing will change, until the solution is transported to the external container along burette, completes titration work, because the capacity of the groove is fixed, thereby realizes the purpose of quantitative titration.

[0021] 2. The utility model discloses because the electric connection between PLC controller and motor, the voltage of motor is adjusted through the PWM signal of a series of high and low level that PLC controller sends through connecting wire, thereby changes its rotating speed, under the cooperation of each component, the rotating speed of rotating rod is adjusted, and then the speed of titration is adjusted, improves the efficiency of titration, and guarantees the accuracy of subsequent experimental result. DRAWINGS

[0022] Figure 1 It is the structural schematic diagram of the utility model;

[0023] Figure 2 It is the second perspective partial schematic view of the utility model;

[0024] Figure 3 It is the motor drive structure schematic diagram of the utility model;

[0025] Figure 4 It is the Figure 3 Enlarged view of A place in the utility model.

[0026] In the drawing: 1, bottom plate;2, L-shaped frame;3, liquid storage tank;4, burette;5, rotating rod;6, auxiliary pulley;7, motor;8, main pulley;9, synchronous belt;10, vertical board;11, round plate;12, carrier;13, mounting plate;14, PLC controller. DETAILED DESCRIPTION

[0027] Please refer to Figures 1-4 A quantitative titration device for chemical component inspection and analysis, including bottom plate 1 and rotating rod 5, the left side fixedly connected with L-shaped frame 2 on the top of bottom plate 1, see Figure 1As shown, a PLC controller 14 is fixedly connected to the left side of the L-shaped frame 2. The PLC controller 14 is electrically connected to the motor 7 via a connecting cable. Because the PLC controller 14 and the motor 7 are electrically connected, the PLC controller 14 sends a series of high and low level PWM signals through the connecting cable to adjust the voltage of the motor 7, thereby changing its speed. A liquid storage tank 3 is fixedly connected to the top right side of the L-shaped frame 2. A burette 4 is connected to the bottom of the liquid storage tank 3. A set of vertical plates 10 is set at one end of the rotating rod 5 and inside the burette 4, and a groove is formed between the two vertical plates 10. Circular plates 11 are fixedly connected to both sides of the vertical plates 10. A secondary pulley 6 is fixedly connected to the left side of the rotating rod 5. A motor 7 is fixedly installed at the top of the L-shaped frame 2 and to the left side of the liquid storage tank 3. A main pulley 8 is fixedly connected to the output end of the motor 7. The surfaces of the main pulley 8 and the secondary pulley 6 are connected by a synchronous belt 9. Figure 1 As shown, mounting plates 13 are fixedly connected to both sides of the front and back surfaces of the base plate 1. There are four mounting plates 13. With the installation of mounting plates 13, the base plate 1 can be quickly disassembled and assembled in a designated position, which greatly improves the efficiency of disassembly and assembly. The motor 7 drives the main pulley 8 to rotate. The main pulley 8 drives the auxiliary pulley 6 to rotate synchronously with the synchronous belt 9. The auxiliary pulley 6 drives the rotating rod 5 to rotate. The rotating rod 5 drives the vertical plate 10 and the circular plate 11 to rotate. During the rotation, the position of the solution will change until the solution is transported to the external container along the burette 4, completing one titration operation. Since the capacity of the groove is fixed, the purpose of quantitative titration is achieved.

[0028] See Figure 1 As shown, a power supply box is fixedly connected to the bottom left side of the L-shaped frame 2, and the inner cavity of the power supply box is equipped with a storage battery. The storage battery provides power to the electrical equipment, maintaining its normal operation. Figure 2 As shown, a bearing is movably connected to the other end of the rotating rod 5, and one side of the bearing is fixedly connected to the inner side of the L-shaped frame 2. The bearing limits the movement of the other end of the rotating rod 5, preventing it from being suspended and thus causing vibration. Figure 1 As shown, a carrier 12 is fixedly connected to the top right side of the base plate 1. A limiting groove is provided on the carrier 12 to secure the external container and prevent it from tipping over during titration. Figure 1 As shown, the surface of the liquid storage tank 3 is provided with a transparent observation window, and the surface of the liquid storage tank 3 and the left side of the transparent observation window are provided with a scale. By setting the scale, the output solution volume can be read in real time, which further improves the accuracy of the titration.

[0029] In use, first of all, the bottom plate 1 is placed in the designated position, and is fixed through the mounting plate 13 under the cooperation of external bolts, the purpose of quick installation is achieved, after the installation is completed, the external container is placed on the carrier 12, and is located directly below the burette 4, secondly, the solution to be detected is delivered to the inner cavity of the liquid storage tank 3 through the liquid inlet at the top of the liquid storage tank 3, and the solution flows into the synchronous belt 9 and falls into the groove formed by the two vertical plates 10, the capacity of the groove is fixed, in the subsequent titration process, the motor 7 is started, the electric energy is converted into mechanical energy through the motor 7, and the main pulley 8 is driven to rotate, the auxiliary pulley 6 is driven to rotate synchronously through the main pulley 8 under the cooperation of the synchronous belt 9, the rotating rod 5 is driven to rotate through the auxiliary pulley 6, the vertical plate 10 and the circular plate 11 are driven to rotate through the rotating rod 5, in the rotating process, the position of the solution is changed, until the solution is delivered to the external container along the burette 4, a titration work is completed, because the capacity of the groove is fixed, the purpose of quantitative titration is achieved, and because the rotating speed of the motor 7 can be controlled through the PLC controller 14, the titration speed is adjusted, the titration efficiency is improved, and the accuracy of the subsequent experimental results is ensured.

Claims

1. A quantitative titration device for chemical composition testing analysis, characterized by: The utility model relates to a liquid storage tank with titration tube, including bottom plate (1) and rotating lever (5), the left side fixed connection of bottom plate (1) top has L type frame (2), the right side fixed connection of L type frame (2) top has liquid storage tank (3), the bottom intercommunication of liquid storage tank (3) has titration tube (4), and one end of rotating lever (5) and located in the inner chamber of titration tube (4) is provided with a group of vertical board (10), and the recess is formed between two vertical boards (10), and both sides of vertical board (10) are fixedly connected with round plate (11), the left side fixed connection of rotating lever (5) surface has auxiliary pulley (6), the top of L type frame (2) and located liquid storage tank (3) left side fixed mounting has motor (7), and the output of motor (7) is fixedly connected with main pulley (8), and the surface of main pulley (8) and auxiliary pulley (6) is driven connection through synchronous belt (9).

2. A quantitative titration device for chemical component inspection analysis according to claim 1, characterized in that: The front surface and the back surface of the bottom plate (1) are fixedly connected with mounting plates (13), and the number of the mounting plates (13) is four.

3. A quantitative titration device for chemical component inspection analysis according to claim 1, characterized in that: The bottom of the left side of the L-shaped frame (2) is fixedly connected with a power supply box, and the inner cavity of the power supply box is provided with a storage battery.

4. The quantitative titration device for chemical component inspection analysis according to claim 1, characterized by: The left side of the L-shaped frame (2) is fixedly connected with a PLC controller (14), and the PLC controller (14) and the motor (7) are electrically connected through connecting lines.

5. The quantitative titration device for chemical component inspection analysis according to claim 1, characterized by: The other end of the rotating lever (5) is movably connected with a bearing, and one side of the bearing is fixedly connected to the inner side of the L-shaped frame (2).

6. A quantitative titration device for chemical component inspection analysis according to claim 1, characterized in that: The right side of the top of the bottom plate (1) is fixedly connected with a carrier (12), and the carrier (12) is provided with a limiting groove.

7. A quantitative titration device for chemical component inspection analysis according to claim 1, characterized in that: The surface of the liquid storage tank (3) is provided with a transparent observation window, and the surface of the liquid storage tank (3) and located on the left side of the transparent observation window is provided with a scale.

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