Titration instrument

Abstract

The utility model discloses a titrator, which belongs to the technical field of titrators and comprises a rack, a titration component and an observation component for observing the titration component are arranged in the rack, the observation component comprises a light source, a receiver and a reflector, the titration component comprises a titration table, and the titration table is provided with a light source. The light source and the reflecting mirror are respectively positioned on two sides of the titration table, the light source is opposite to the reflecting mirror, and the receiver is positioned above the reflecting mirror; the light source further comprises an adjusting assembly, the adjusting assembly comprises an adjusting plate and a lifting motor, the lifting motor is used for driving the adjusting plate to move in the vertical direction of the rack, the light source is installed on the adjusting plate, and flexible adjustment of the light source, the reflector and the receiver is achieved through an adjusting mechanism of the adjusting assembly. And the stability and the accuracy of a light path are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to titrator technical field especially relates to a kind of titrator. BACKGROUND

[0002] Automatic potentiometric titrator is a kind of high-precision, automated analytical instrument, is widely used in acid-base titration, oxidation-reduction titration and other chemical analysis.The core principle is to determine the end point of titration reaction by monitoring the change of electrode potential.When titrant is added to solution, potential will change with the change of components in solution, and automatic potentiometric titrator records these changes in real time, and draws potential-titrant amount curve.Through analyzing the change of curve, instrument can automatically determine the end point of titration, greatly improves the accuracy and efficiency of experiment.Automatic potentiometric titrator is mainly composed of electrode system (indicating electrode and reference electrode), automatic titration system, control system and stirring system and other parts.Instrument monitors the change of potential in solution in real time through potential sensor, combines with automatic titrator to accurately control the addition amount of titrant, and simultaneously analyzes titration curve and end point through computer system automatically, so as to complete the whole titration process.This kind of equipment has high precision, automation and real-time data processing and other advantages.

[0003] Prior art such as Chinese patent publication no.

[0004] The existing titrator has deficiency in optical path adjustment, and the above patent cannot adjust light source in real time, which can easily affect the confirmation of titration end point of the titrator to the solution to be measured, resulting in poor accuracy and stability of experimental results. UTILITY MODEL CONTENT

[0005] The utility model provides a kind of titrator, can adjust light source to carry out accurate titration.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A titrator, comprising a rack, a titration assembly and an observation assembly for observing the titration assembly are arranged in the rack, the observation assembly comprises a light source, a receiver and a mirror, the titration assembly comprises a titration table, the light source and the mirror are respectively located on two sides of the titration table, the light source is opposite to the mirror, and the receiver is located above the mirror; the light source further comprises an adjusting assembly, the adjusting assembly comprises an adjusting plate and a lifting motor, the lifting motor is used for driving the adjusting plate to move in the vertical direction of the rack, and the light source is installed on the adjusting plate.

[0008] The preferred technical scheme of the utility model lies in, still include two adjustment handle, two the adjustment handle is installed on the both sides of light source respectively, two the adjustment handle one end all is provided with the clamping block, rotate the adjustment handle for control the clamping block protrude from the backplate of light source or accomodate with the backplate of light source in, the adjusting plate is seted with slide on, make light source slide on the adjusting plate, the adjustment handle is used for adjusting light source moves in the first direction of adjusting plate, and the first direction with the vertical direction is perpendicular to each other, when adjusting is completed, rotates two the adjustment handle will two the clamping block respectively and rest on the both sides of slide.

[0009] The preferred technical scheme of the utility model lies in, the light source includes light source frame, the light source is movably installed in the light source frame, the arc slot is seted with on the light source frame, the fixed bolt is seted with on the light source, one end of the fixed bolt is located on the outside of the arc slot, when the angle of the light source is fixed in the light source frame, the fixed bolt is locked on the arc slot, so that the light source is fixed in the light source frame.

[0010] The preferred technical scheme of the utility model lies in, the mirror still includes reflection frame, the mirror is obliquely installed in the reflection frame, and the mirror is oppositely arranged with the light source.

[0011] The preferred technical scheme of the utility model lies in, the both sides of reflection frame are seted with air supply opening and air outlet respectively, and the air supply opening is provided with an air supply fan.

[0012] The preferred technical scheme of the utility model lies in, the titration assembly comprises a stirring motor and a magnetic stirring rod, the stirring motor is located below the titration table, the magnetic stirring rod is used for being placed in a titration bottle, and the titration bottle is placed on the titration table.

[0013] The preferred technical scheme of the utility model lies in, the rack is further provided with a control assembly, the titration assembly is installed above the titration assembly, and the control assembly comprises a display screen, a power key and a stirring knob.

[0014] The utility model discloses a preferred technical scheme is on the rack still be provided with rotatable opening's door board, the door board is used for opening and closing to take the titration flask.

[0015] The utility model discloses a preferred technical scheme is on the rack still be provided with rotatable opening's door board, the door board is used for opening and closing to take the titration flask.

[0016] The utility model discloses a preferred technical scheme is on the rack still be provided with rotatable opening's door board, the door board is used for opening and closing to take the titration flask.

[0017] The utility model discloses a preferred technical scheme is on the rack still be provided with rotatable opening's door board, the door board is used for opening and closing to take the titration flask.

[0018] (1) through the adjustment mechanism of adjusting component, realized the flexible adjustment of light source, greatly improved the stability and accuracy of light path. Especially in the complex and changeable experimental environment, this design can better meet the diversified needs of users, improves the reliability and efficiency of experiment.

[0019] (2) through the design of increasing adjusting handle and arc slot, realize the double regulation of light source in horizontal direction and angle, further enhance the flexibility and stability of light path. This not only improves the applicability of titration instrument, but also simplifies the operation process to a certain extent, reduces the experimental difficulty, and improves the user experience. DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of titration instrument provided in the embodiment of the utility model;

[0021] Figure 2 It is the whole structure schematic diagram of titration assembly and adjusting component of titration instrument provided in the embodiment of the utility model;

[0022] Figure 3 It is the structure schematic diagram of light source and adjusting plate of titration instrument provided in the embodiment of the utility model;

[0023] Figure 4 It is the structure schematic diagram of the angle adjustment of light source on light source frame of titration instrument provided in the embodiment of the utility model;

[0024] Figure 5 It is the whole structure schematic diagram of titration instrument card block protruding from light source backboard provided in the embodiment of the utility model;

[0025] Figure 6 It is the whole structure schematic diagram of titration instrument card block storage in light source backboard provided in the embodiment of the utility model;

[0026] Fig.:

[0027] 1, rack; 2, light source; 201, heat dissipation hole; 3, receiver; 4, reflector; 5, titration table; 6, adjustment plate; 601, slide; 7, lifting motor; 8, adjustment handle; 9, fixing bolt; 10, reflecting frame; 101, air inlet; 102, air outlet; 11, stirring motor; 12, magnetic stirring rod; 13, display screen; 14, power key; 15, stirring knob; 16, door plate; 17, sliding motor; 18, clamping block; 19, light source frame; 1901, arc-shaped groove; 20, titration bottle. DETAILED DESCRIPTION

[0028] The technical scheme of the present application will be further illustrated below in combination with the drawings and through specific embodiments.

[0029] As Figures 1-6 shown, the titration instrument provided by the present application comprises a rack 1, a titration assembly and an observation assembly for observing the titration assembly. The observation assembly comprises a light source 2, a receiver 3 and a reflector 4, and the titration assembly comprises a titration table 5. The light source 2 and the reflector 4 are respectively located on the two sides of the titration table 5, and the light source 2 is opposite to the reflector 4. The receiver 3 is located above the reflector 4. The light source 2 further comprises an adjustment assembly, which comprises an adjustment plate 6 and a lifting motor 7. The lifting motor 7 is used to drive the adjustment plate 6 to move in the vertical direction of the rack 1. The light source 2 is installed on the adjustment plate 6, and the adjustment plate 6 is used to fix the light source 2. The lifting motor 7 can be a stepping motor or a servo motor.

[0030] The light source 2 can be an LED lamp, which has the characteristics of high brightness and low power consumption, and is suitable for laboratory environment for long-time work. The shell of the light source 2 is made of aluminum alloy material, which is light and has good heat dissipation performance. In order to enhance the heat dissipation effect, a plurality of heat dissipation holes 201 can be opened on the shell of the light source 2. These heat dissipation holes 201 are uniformly distributed, which is helpful for air circulation and reduces the working temperature of the light source 2. The light source 2 can also be equipped with a lens group to focus the light, making it more concentrated.

[0031] The reflector 4 is also included, which is installed on the reflecting frame 10 at an angle. The surface of the reflector 4 is treated with silver plating or other high-reflectivity materials to ensure maximum reflection of light. In order to avoid dust and other impurities affecting the performance of the reflector 4, air inlets 101 and air outlets 102 are respectively opened on the two sides of the reflecting frame 10, and an air blower is arranged on one side of the air inlet 101. It can effectively protect the reflector 4 from pollution and prolong its service life. Secondly, due to the existence of the air blower, a local air circulation can be formed, which can take away the heat around the reflector 4 and reduce the refraction error caused by temperature difference. This is particularly important for titration experiments that need to be run for a long time, because the change of temperature will directly affect the stability of the light path.

[0032] The receiver 3 is installed on the top of the frame 1, which functions to capture the light reflected from the mirror 4 and convert it into an electrical signal. The receiver 3 can be a photodiode or a CCD (Charge-Coupled Device), both of which are commonly used optical sensors with high sensitivity and fast response. In order to improve the flexibility of the receiver 3, a sliding motor 17 is also provided on the receiver 3, which can drive the receiver 3 to move along the second direction of the frame 1, so that the receiver 3 can receive the most suitable light signal at different positions.

[0033] The titration assembly includes a titration table 5, a stirring motor 11, and a magnetic stirring rod 12. The titration table 5 is a flat platform on which the titration flask 20 can be placed. The stirring motor 11 is located below the titration table 5, and the titration table 5 is magnetized to drive the magnetic stirring rod 12 to rotate in the titration flask 20, thereby achieving uniform mixing of the liquid.

[0034] Two adjustment handles 8 are also included, each mounted on the side of the light source 2. One end of each adjustment handle 8 is provided with a clamping block 18. Rotating the adjustment handle 8 controls whether the clamping block 18 protrudes from the back plate of the light source 2 or is stored in the back plate of the light source 2. The adjustment plate 6 has a slide 601, allowing the light source 2 to slide on the adjustment plate 6. The adjustment handle 8 is used to adjust the movement of the light source 2 in the first direction of the adjustment plate 6, which is perpendicular to the vertical direction. After adjustment, rotate the two adjustment handles 8 to make the two clamping blocks 18 rest on the two sides of the slide 601, respectively. By clamping the slide 601 with the clamping block 18, the friction between the light source 2 and the adjustment plate 6 is increased, making them relatively fixed, so that the fixation between the light source 2 and the adjustment plate 6 is more stable.

[0035] The light source 2 is installed in the light source holder 19, which has an arc-shaped slot 1901. The light source 2 is movably arranged on the light source holder 19, allowing it to move within the range of the arc-shaped slot 1901. The light source 2 is provided with a fixing bolt 9, one end of which is located outside the arc-shaped slot 1901. After adjusting the angle of the light source 2 in the light source holder 19, lock the fixing bolt 9 on the arc-shaped slot 1901 to fix the light source 2 in the light source holder 19. This design allows the light source 2 to be freely adjusted within a certain angle range, which is particularly suitable for situations that require adjustment of the light path angle. When the titration flask 20 used in the experiment has a larger diameter, the angle of the light source 2 can be adjusted to better illuminate the area above the liquid surface, thereby obtaining a clearer light spot. In some special cases, such as when background light interference needs to be avoided, the angle of the light source 2 can be adjusted appropriately to make the light avoid unnecessary reflection areas, thereby improving the signal-to-noise ratio.

[0036] The frame 1 also houses the control unit, with the titration assembly mounted above it. The control unit includes a display screen 13, a power button 14, and a stirring knob 15. The display screen 13 shows the current stirring speed, time, and other parameters. Users can set these parameters intuitively and conveniently through the menu options on the screen. Furthermore, the control unit is equipped with a power button 14 for turning the machine on and off, and a stirring knob 15 for manually adjusting the stirring speed.

[0037] The frame 1 is also equipped with a rotatable door panel 16, which is used to open and close the titration bottle 20. The door panel 16 can open to an angle of up to 180 degrees, making it easy for users to put in or take out the titration bottle 20. The edge of the door panel 16 is equipped with a sealing strip, which can provide a certain degree of sound insulation and dust prevention when closed, protecting the delicate components inside the instrument.

[0038] How to use

[0039] When using the device, first open the door panel 16, place the titration bottle 20 to be titrated on the titration stage 5, then adjust the position of the light source 2 by adjusting the components, clean the dust on the surface of the reflector 4 by the blower, close the door panel 16, and use the buttons of the control components and the display screen 13 to control the stirring, thereby performing accurate titration through the titrator of this device.

[0040] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A titrator characterized in that: comprising a rack (1), a titration assembly and an observation assembly for observing the titration assembly are arranged in the rack (1), the observation assembly comprises a light source (2), a receiver (3) and a mirror (4), the titration assembly comprises a titration table (5), the light source (2) and the mirror (4) are respectively located on both sides of the titration table (5), and the light source (2) is opposite to the mirror (4), and the receiver (3) is located above the mirror (4); The light source (2) further comprises an adjusting assembly, the adjusting assembly comprises an adjusting plate (6) and a lifting motor (7), the lifting motor (7) is used to drive the adjusting plate (6) to move in the vertical direction of the rack (1), and the light source (2) is installed on the adjusting plate (6).

2. The titrator according to claim 1, characterized in that: further comprising two adjusting handles (8), two adjusting handles (8) are respectively installed on both sides of the light source (2), one end of two adjusting handles (8) is provided with a clamping block (18), and rotating the adjusting handle (8) is used to control the clamping block (18) to protrude from or be accommodated in the back plate of the light source (2); A sliding groove (602) is formed in the adjusting plate (6), so that the light source (2) slides on the adjusting plate (6), the adjusting handle (8) is used to adjust the light source (2) to move in the first direction of the adjusting plate (6), and the first direction is perpendicular to the vertical direction, and when the adjustment is completed, two clamping blocks (18) are respectively abutted on both sides of the sliding groove (602) by rotating two adjusting handles (8).

3. The titrator according to claim 1, characterized in that: the light source (2) comprises a light source frame (19), the light source (2) is movably installed in the light source frame (19), an arc-shaped groove (1901) is formed in the light source frame (19), a fixing bolt (9) is arranged on the light source (2), one end of the fixing bolt (9) is located outside the arc-shaped groove (1901), and after the angle of the light source (2) in the light source frame (19) is fixed, the fixing bolt (9) is locked in the arc-shaped groove (1901), so that the light source (2) is fixed in the light source frame (19).

4. The titrator according to claim 1, characterized in that: the mirror (4) further comprises a reflection frame (10), the mirror (4) is obliquely installed in the reflection frame (10), and the mirror (4) is arranged opposite to the light source (2).

5. The titrator according to claim 4, characterized in that: air supply openings (101) and air outlet openings (102) are respectively formed in both sides of the reflection frame (10), and one side of the air supply opening (101) is provided with an air supply fan.

6. The titrator according to claim 1, characterized in that: ​ ​ ​ ​ ​ The titration assembly comprises a stirring motor (11) located below the titration table (5) and a magnetic stirring rod (12) for being placed in a titration bottle (20) placed on the titration table (5).

7. The titration apparatus according to claim 1, characterized in that: The rack (1) is further provided with a control assembly, the titration assembly is installed above the titration assembly, and the control assembly comprises a display screen (13), a power key (14) and a stirring knob (15).

8. The titration apparatus according to claim 6, characterized in that: The rack (1) is further provided with a rotatable door plate (16) for opening and closing the titration bottle.

9. The titration apparatus according to claim 2, characterized in that: The receiver (3) is installed on the top of the rack (1), the receiver (3) is used for receiving the light source (2) reflected by the mirror (4), and the receiver (3) is provided with a sliding motor (17) for driving the receiver (3) to move in a second direction of the rack (1), and the second direction, the first direction and the vertical direction are perpendicular to each other.

10. The titration apparatus according to claim 3, characterized in that: The light source frame (19) is further provided with a heat dissipation hole.

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