A multifunctional beaker holder device

Abstract

The invention relates to a chemical experiment device and particularly relates to a multifunctional beaker bracket device. The bracket device comprises beaker brackets, a heating tank cover plate and beaker covers, wherein each beaker bracket comprises an upper annular wafer, a lower annular wafer and a connecting rod for connecting the upper annular wafer with the lower annular wafer; the inner diameter of each upper annular wafer is equal to the outer diameter of the lower annular wafer; round holes are formed in the heating tank cover plate, the inner diameters of the round holes are equal to the outer diameters of the lower annular wafers and a pressing sheet is arranged at the edge of each round hole; the beaker brackets are embedded into the round holes in the heating tank cover plate; the upper part of each beaker bracket is provided with one beaker cover matched with the beaker bracket. The bracket device is capable of not only meeting all technological requirements in experiments and monitoring the technology in real time, but also ensuring that the beakers in an experiment process are heated stably and the arrangement of a test piece conforms to requirements; the bracket device is convenient and safe to use.

Description

technical field [0001] The invention relates to a chemical experiment device, in particular to a multifunctional beaker bracket device, especially a bracket device suitable for stably placing containers such as beakers in a heating tank. Background technique [0002] At present, the tank heat used in chemical experiments is a cuboid rectangular tank with an external dimension of 300×300×500mm, an internal size of the tank body of 250×250×250mm, and an open top. The heating plate of the heating tank is located on both sides of the tank body, and the height of the heating plate is 150mm. When working, in order to avoid dry burning, the minimum water level in the heating tank should not be less than two-thirds of the tank depth, that is, the liquid level height must be greater than 170mm. The specifications of beakers commonly used in laboratories are 100mL, 150mL, 250mL, and 500mL, and their heights are 70mm, 80mm, 100mm, and 120mm, respectively. [0003] When conducting che...

AI Technical Summary

Problems solved by technology

During the experiment, the following problems often occur: 1. Since the top of the heating tank is open, part of the water in the heating tank will evaporate with the increase of water temperature, causing the liquid level to drop, and there is a risk of dry burning

2. Since there is no bracket for fixing the beaker in the heating tank, and the height of the liquid level in the tank must be greater than 170mm, even if a beaker with a specification of 500mL (height is 120mm) is placed in the heating tank, it is easy to cause the beaker to be damaged due to the buoyancy. floating, skewed

3. Since the limited water level in the heating tank is far greater than the height of the beaker, beakers of different specifications (especially small beakers) cannot be placed stably and conveniently in the tank, and the operation is inconvenient

4. When the heating tank starts the ultrasonic oscillation function, due to the high-frequency ultrasonic vibration, the beaker floating in the heating tank is more likely to shake, collide or even overturn

5. It is inconvenient to measure the temperature of the solution in the beaker

If the pointer of the setting knob points to 80°C, due to the error, the water temperature in the tank is not necessarily 80°C, resulting in a greater error in the temperature of the solution in the beaker. Generally, it is extremely inconvenient to measure the temperature of the solution in the beaker by the operator holding a thermometer.

6. It is inconvenient to measure the pH value of the solution in the beaker

Track the real-time change of pH value during the experiment, which cannot be realized in the existing device

7. During the experiment, the process requires that the test piece must be placed vertically, but the existing device is difficult to achieve this. The existing common practice is to use tweezers to place the test piece at the bottom of the beaker against the wall. Due to the ultrasonic vibration, The test piece often lies flat on the bottom of the beaker, which affects the experimental effect

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