CN214041296U - Chemical titration test device - Google Patents

Abstract

The utility model discloses a chemical titration test device, including mounting bracket, magnetic stirring device, experimental container and buret, wherein the mounting bracket includes base, first support and a plurality of second support, and first support is rotatable to be set up on the base. The utility model realizes the titration of various liquids by arranging a plurality of second supports and a plurality of burettes on the second supports, and the second supports are rotatably arranged on the base, so that the burettes containing different liquids can be conveniently moved to the upper part of the test container; the test container is placed on the magnetic driver, and the liquid in the test container can be assisted to be stirred by matching with the magnetic stirring piece, so that the purpose of stirring is achieved, the test container does not need to be shaken manually, the solution is prevented from splashing, and the safety of the test is ensured. The utility model discloses simple structure can titrate multiple liquid simultaneously, has improved and has titrated efficiency.

Description

Chemical titration test device

Technical Field

The utility model relates to a test device technical field for chemical analysis especially indicates a chemical titration test device.

Background

The burette is divided into a basic burette and an acid burette, wherein the basic burette is used for measuring a liquid reagent which has an erosion effect on the glass tube; the latter is used to measure the liquid which has an erosive effect on the eraser. The lower end of the acid burette is a glass piston, the lower end of the basic burette is connected with a small glass tube with a sharp mouth by a rubber tube, the burette is a slender tubular container, one end of the burette is provided with a stopcock switch, and the burette is provided with scale indication measurement. Generally the scale reading on the top is smaller and the reading towards the bottom is larger.

Titration is a chemical experimental procedure and also a means of quantitative analysis. It determines the content of a certain solute by quantitative reaction of two solutions. Currently, the general laboratory titration analysis uses an artificial titration method, which indicates the titration endpoint according to the color change of an indicator, then visually measures the consumption volume of a standard solution, and calculates the analysis result. In the titration process, the left hand holds the burette, the right hand holds the erlenmeyer flask, and the erlenmeyer flask is shaken while the solution is dripped. When the time required by the titration experiment is long, the right hand feels fatigue and numbness, the solution can be splashed out carelessly, and accidents caused by the fact that the bottle mouth of the conical bottle collides with the pipe orifice of the burette are easy to happen. The existing auxiliary titration device can only titrate one liquid at one time, and the efficiency is very low.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to above-mentioned prior art, provides a chemistry titration test device, has solved and can only titrate a liquid once among the prior art, and the problem of the easy spill of solution when manual rock test container has improved titration efficiency.

The technical scheme of the utility model is realized like this:

the utility model provides a chemical titration test device, include:

the mounting rack comprises a base, a first support and a plurality of second supports; the first supports are rotatably arranged on the base, and one ends of the second supports are fixed on the outer side wall of the first support;

the magnetic stirring device comprises a magnetic driver and a magnetic stirring piece; the magnetic driver is arranged on the base; the magnetic stirring piece is positioned in the magnetic field of the magnetic driver;

a test receptacle placed on the magnetic drive;

at least one burette, wherein the burette is detachably arranged on the second bracket;

furthermore, a pipe clamp is further arranged on the second support, and the burette is detachably arranged on the second support through the pipe clamp.

Further, the burette is an acid burette and/or a basic burette.

Furthermore, an electric rotating device is further arranged inside the base and connected with the bottom of the second support to drive the second support to rotate.

Further, the electric rotating device comprises a motor, a rotating block and a rotating column which are sequentially connected, the rotating column and the rotating block are connected into a whole through screws, a through hole for the motor to be connected is formed in the middle of the rotating block, and the motor drives the rotating block to rotate.

Adopt above-mentioned technical scheme, the utility model provides a pair of chemical titration test device, its beneficial effect lies in: the plurality of second supports can fix a plurality of burettes, different burettes can contain different liquids, and the burettes containing different liquids can be moved to the upper part of a test container by rotating the second supports in a single titration test; simultaneously, the test container is placed on magnetic actuator, and the cooperation magnetic stirring spare can assist the liquid in the stirring test container, reaches the purpose of stirring, does not need the manual work to rock the test container, avoids the solution spill, has guaranteed experimental security. The utility model discloses simple structure can titrate multiple liquid simultaneously, has improved and has titrated efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic plan view of an embodiment of the present invention;

FIG. 2 is a top view of the mount shown in FIG. 1;

fig. 3 is a schematic structural diagram of a rotating device according to an embodiment of the present invention.

In the figure, 10-mounting rack, 11-base, 12-first support, 13-second support, 20-magnetic stirring device, 21-magnetic driver, 22-magnetic stirring piece, 30-test container, 40-burette, 50-pipe clamp, 60-electric rotating device, 61-rotating block, 62-rotating column, 63-screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 is a schematic plan view of an embodiment of the present invention; FIG. 2 is a top view of the mounting bracket 10 shown in FIG. 1; fig. 3 is a schematic structural diagram of a rotating device according to an embodiment of the present invention. Referring to fig. 1 to 3, in an embodiment of the present invention, a chemical titration test apparatus includes:

the mounting frame 10 comprises a base 11, a first support 12 and a plurality of second supports 13; the first brackets 12 are rotatably arranged on the base 11, and one ends of the second brackets 13 are fixed on the outer side wall of the first brackets 12;

the magnetic stirring device 20, the magnetic stirring device 20 includes magnetic driver 21 and magnetic stirring piece 22; the magnetic driver 21 is arranged on the base 11; the magnetic stirrer 22 is located in the magnetic field of the magnetic drive 21. The magnetic stirring device 20 is based on the principle that like poles repel and opposite poles attract magnetic fields, and uses the magnetic field to drive the magnetic stirring member placed in the container to perform circumferential operation, so as to achieve the purpose of stirring liquid.

A test container 30, the test container 30 being placed on the magnetic driver 21; the magnetic stirring piece 22 is placed on the test container 30 positioned on the magnetic driver 21, liquid in the test container 30 can perform circular motion around the magnetic stirring piece 22, the purpose of stirring is achieved, the test container 30 does not need to be shaken manually, and solution splashing is avoided.

At least one burette 40, the burette 40 is detachably arranged on the second bracket 13; the plurality of burettes 40 may contain different types of liquids therein.

Specifically, the second holder 13 is further provided with a tube clamp 50, and the burette 40 is detachably arranged on the second holder 13 through the tube clamp 50. The pipe clamp 50 can assist in the installation of the burette 40, improve the clamping efficiency of the burette 40, and reduce the time for holding by hands of a tester.

Specifically, the burette 40 is an acid burette and/or a base burette. The burette 40 is divided into a basic burette and an acid burette, wherein the basic burette is used for measuring a liquid reagent which has an erosion effect on the glass tube; the latter is used to measure the liquid which has an erosive effect on the eraser. In the actual use process, the acid burette 40 and the alkali burette 40 can be respectively arranged on the second support 13 according to the requirements or the combination of the acid burette 40 and the alkali burette 40 is adopted, so that the problem that the common titration device can only titrate one liquid at a time and then perform the next operation after the titration is finished is solved, and the efficiency of the titration test is improved.

Specifically, an electric rotating device 60 is further disposed inside the base 11, and the electric rotating device 60 is connected to the bottom of the second support 13 to drive the second support 13 to rotate. The second holder 13 is automatically rotated by the electric rotating device 60, so that the liquid in the burette 40 can be prevented from shaking out due to inertia caused by the artificial over-speed rotation.

Specifically, the electric rotating device 60 comprises a motor, a rotating block 61 and a rotating column 62 which are sequentially connected, the rotating column 62 and the rotating block 61 are connected into a whole through a screw 63, a through hole for connecting the motor is formed in the middle of the rotating block 61, and the motor drives the rotating block 61 to rotate. In addition, a button for controlling the on/off of the electric rotating apparatus 60 may be provided according to the actual use requirement.

Understandably, in the chemical titration test device, a plurality of second supports 13 can fix a plurality of burettes 40, different burettes 40 can contain different liquids, and the burettes 40 containing different liquids can be moved to the upper part of a test container 30 by rotating the second supports 13 in a single titration test; meanwhile, the test container 30 is placed on the magnetic driver 21 and matched with the magnetic stirring piece 22, so that the liquid in the test container 30 can be stirred in an auxiliary mode, the purpose of stirring is achieved, the test container 30 does not need to be shaken manually, the solution is prevented from splashing, and the safety of the test is guaranteed. The utility model discloses simple structure can titrate multiple liquid simultaneously, has improved and has titrated efficiency.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A chemical titration test device, comprising:

the mounting frame (10), the mounting frame (10) comprises a base (11), a first support (12) and a plurality of second supports (13); the first brackets (12) are rotatably arranged on the base (11), and one ends of the second brackets (13) are fixed on the outer side wall of the first brackets (12);

a magnetic stirring device (20), wherein the magnetic stirring device (20) comprises a magnetic driver (21) and a magnetic stirring piece (22); the magnetic driver (21) is arranged on the base (11); the magnetic stirring piece (22) is positioned in the magnetic field of the magnetic driver (21);

a test receptacle (30), the test receptacle (30) being placed on the magnetic drive (21);

at least one burette (40), the burette (40) is detachably arranged on the second support (13).

2. The chemical titration test device according to claim 1, wherein: the second support (13) is further provided with a pipe clamp (50), and the burette (40) is detachably arranged on the second support (13) through the pipe clamp (50).

3. The chemical titration test device according to claim 1, wherein: the burette (40) is an acid burette and/or a basic burette.

4. The chemical titration test device according to claim 1, wherein: an electric rotating device (60) is further arranged inside the base (11), and the electric rotating device (60) is connected with the bottom of the second support (13) and drives the second support (13) to rotate.

5. The chemical titration test device according to claim 4, wherein: the electric rotating device (60) comprises a motor, a rotating block (61) and a rotating column (62) which are sequentially connected, the rotating column (62) is connected with the rotating block (61) into a whole through a screw (63), a through hole for connecting the motor is formed in the middle of the rotating block (61), and the motor drives the rotating block (61) to rotate.

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