Distillation device for chemical experiment

Abstract

The utility model relates to the technical field of distillation devices, and discloses a distillation device for chemical experiments, which comprises a base, a cavity is arranged in the middle of the top of the base, a heating plate is fixedly connected onto the inner wall of the cavity, a distillation flask is inserted into the cavity, and a fixing mechanism is arranged between the distillation flask and the base. The fixing mechanism comprises an outer ring fixed to the outer side of the distillation flask, the bottom of the outer ring is fixedly connected with a rubber ring, the rubber ring is attached to the top of the base, the top of the base is symmetrically and fixedly connected with two positioning columns, and the outer ring movably sleeves the outer sides of the two positioning columns; through cooperation of the lifting plate, the guide rod, the L-shaped block, the support, the U-shaped rod and the limiting plate, when the lifting plate descends, an outer ring can be clamped and limited, installation of a distillation flask is facilitated, through cooperation of a rubber ring, a positioning column and a rubber pad, vibration generated by the distillation flask can be buffered, and the distillation flask can be conveniently installed. Therefore, the stability of the distillation flask is conveniently ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of distillation apparatus, specifically a distillation apparatus for chemical experiments. Background Technology

[0002] Distillation is a thermodynamic separation process that utilizes the different boiling points of different components in a mixed liquid or liquid-solid system to evaporate the lower boiling point component and then condense it to separate the entire component. It is a unit operation process that combines evaporation and condensation. Compared with other separation methods such as extraction and adsorption, its advantage is that it does not require the use of other solvents outside the system components, thus ensuring that no new impurities are introduced.

[0003] According to the patent document with authorization announcement number CN214636530U and titled "An Organic Distillation Apparatus for Chemical Experiments," it includes a base, a heating plate fixedly connected to the left side inside the base, a support rod fixedly connected to the left side of the top of the base, a stabilizing frame movably connected to the upper part of the support rod, a distillation flask inserted into the top of the base, graduation lines on the front surface of the distillation flask, a water outlet on the right side wall of the distillation flask, a water inlet on the left side wall of the distillation flask, a temperature measuring device fixedly connected to the top of the distillation flask, a connecting tube movably inserted into the right side wall of the distillation flask, a collecting bottle movably connected to the right side of the top of the base, a cork movably connected to the upper part of the collecting bottle, an vent pipe fixedly connected to the upper part of the left side wall of the collecting bottle, and the right side of the connecting pipe penetrating and inserting into the body of the cork; however, the following defects still exist:

[0004] Although the stabilizer secures the distillation flask with a circular groove and a rubber shock-absorbing ring, relying solely on bolts to adjust the position of the stabilizer to fit the distillation flask means that if the liquid inside the flask boils violently during distillation, it may generate significant vibrations. With only the buffering provided by the rubber shock-absorbing ring, the distillation flask still risks shaking or even shifting over long-term use, affecting the stability of the distillation process. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a distillation apparatus for chemical experiments, which effectively solves the problem of poor stability of current distillation flasks.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a distillation apparatus for chemical experiments, comprising a base, a cavity in the middle of the top of the base, a heating plate fixedly connected to the inner wall of the cavity, a distillation flask inserted inside the cavity, and a fixing mechanism between the distillation flask and the base;

[0007] The fixing mechanism includes an outer ring fixed to the outside of the distillation flask, a rubber ring fixedly connected to the bottom of the outer ring, the rubber ring fitting against the top of the base, two positioning posts symmetrically fixedly connected to the top of the base, the outer ring movably sleeved on the outside of the two positioning posts, two limiting plates symmetrically provided above the outer ring, and rubber pads fixedly connected to the bottom of the two limiting plates, the two rubber pads fitting against the top of the outer ring.

[0008] Preferably, the top of the base is symmetrically rotatably connected to two supports, and the top of each support is fixedly connected to a U-shaped rod. Two limiting plates are respectively movably sleeved on the outside of the two U-shaped rods.

[0009] Preferably, the top of the base is symmetrically and fixedly connected with two guide rods, and two limiting plates are respectively movably sleeved on the outside of the two guide rods.

[0010] Preferably, a lifting plate is movably sleeved between the two guide rods, and the lifting plate is located below the two limiting plates.

[0011] Preferably, the top of the lifting plate is symmetrically fixedly connected with two L-shaped blocks, which are respectively sleeved on the outside of the two guide rods and respectively abut against the top of the two limiting plates.

[0012] Preferably, a lead screw is rotatably connected to the top of the base, a handwheel is fixedly connected to the top of the lead screw, a sleeve block is threaded onto the outer side of the lead screw, and a lifting plate is fixed to the outer side of the sleeve block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the cooperation between the lifting plate, guide rod, L-shaped block, support, U-shaped rod and limiting plate, can clamp and limit the outer ring when the lifting plate descends, which is convenient for the installation of the distillation flask. Through the cooperation between the rubber ring, positioning column and rubber pad, the vibration generated by the distillation flask can be buffered, thereby ensuring the stability of the distillation flask.

[0015] 2. The handwheel, lead screw, and connecting block work together to facilitate the sliding of the lifting plate downwards along the two guide rods. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the distillation apparatus for chemical experiments according to this utility model;

[0019] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the support structure of this utility model.

[0022] In the diagram: 1. Base; 2. Fixing mechanism; 201. Outer ring; 202. Rubber ring; 203. Support; 204. Lifting plate; 205. Positioning column; 206. Screw; 207. Handwheel; 208. Connecting block; 209. U-shaped rod; 2010. Limiting plate; 2011. Rubber pad; 2012. L-shaped block; 2013. Guide rod; 3. Distillation flask; 4. Cavity; 5. Heating plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example 1, by Figures 1-4 The present invention relates to a distillation apparatus for chemical experiments, comprising a base 1, a cavity 4 provided in the middle of the top of the base 1, a heating plate 5 fixedly connected to the inner wall of the cavity 4, a distillation flask 3 inserted inside the cavity 4, the heating plate 5 being used to heat the distillation flask 3, and a fixing mechanism 2 being provided between the distillation flask 3 and the base 1.

[0025] Specifically, the fixing mechanism 2 includes an outer ring 201 fixed to the outside of the distillation flask 3. A rubber ring 202 is fixedly connected to the bottom of the outer ring 201. The rubber ring 202 fits against the top of the base 1 and ensures the seal between the outer ring 201 and the base 1, thus providing insulation. Two positioning posts 205 are symmetrically fixedly connected to the top of the base 1. The outer ring 201 is movably fitted onto the outside of the two positioning posts 205, which are used to position the outer ring 201. Two limiting plates 2010 are symmetrically arranged above the outer ring 201. A rubber pad 2011 is fixedly connected to the bottom of each limiting plate 2010 and fits against the top of the outer ring 201. The limiting plates 2010 limit the outer ring 201. The rubber ring 202, the positioning posts 205, and the rubber pads 2011 work together to buffer the distillation flask 3. To prevent the distillation flask 3 from shaking or even shifting, two supports 203 are symmetrically rotatably connected to the top of the base 1. A U-shaped rod 209 is fixedly connected to the top of each support 203. Two limiting plates 2010 are movably sleeved on the outside of the two U-shaped rods 209. Two guide rods 2013 are symmetrically fixedly connected to the top of the base 1. The two limiting plates 2010 are movably sleeved on the outside of the two guide rods 2013. A lifting plate 204 is movably sleeved between the two guide rods 2013. The lifting plate 204 is located below the two limiting plates 2010. Two L-shaped blocks 2012 are symmetrically fixedly connected to the top of the lifting plate 204. The two L-shaped blocks 2012 are respectively sleeved on the outside of the two guide rods 2013, and the two L-shaped blocks 2012 abut against the top of the two limiting plates 2010. The L-shaped blocks 2012 are used to limit the position of the limiting plates 2010.

[0026] Place the outer ring 201 on top of the base 1, so that both limiting plates 2010 move and rotate until both rubber pads 2011 abut against the top of the outer ring 201. Then push the lifting plate 204 down to limit the two limiting plates 2010, thus completing the installation of the distillation flask 3.

[0027] Specifically, a lead screw 206 is rotatably connected to the top of the base 1, a handwheel 207 is fixedly connected to the top of the lead screw 206, a sleeve block 208 is threaded onto the outer side of the lead screw 206, and a lifting plate 204 is fixed to the outer side of the sleeve block 208.

[0028] When the handwheel 207 is rotated, the lifting plate 204 can slide downward along the two guide rods 2013.

[0029] Working principle:

[0030] First, place the outer ring 201 on the outside of the two positioning posts 205 until the rubber ring 202 is in contact with the base 1. At the same time, insert the distillation flask 3 into the cavity 4. Then, slide the two limiting plates 2010 upward along the two U-shaped rods 209 and rotate them at the same time. Then, place the two limiting plates 2010 on the outside of the two guide rods 2013 until the two rubber pads 2011 are in contact with the top of the outer ring 201.

[0031] Then, rotate the handwheel 207 to drive the lead screw 206 to rotate. Through the sleeve block 208, the lifting plate 204 slides downward along the two guide rods 2013. At the same time, the two L-shaped blocks 2012 descend and respectively fit onto the outside of the two guide rods 2013 until the two L-shaped blocks 2012 abut against the top of the two limiting plates 2010, thereby limiting the two limiting plates 2010 and clamping the outer ring 201. Finally, the distillation flask 3 is installed and fixed.

Claims

1. A distillation apparatus for chemical experiments comprising a base (1), characterised in that: The base (1) has a cavity (4) in the middle of its top. A heating plate (5) is fixedly connected to the inner wall of the cavity (4). A distillation flask (3) is inserted into the cavity (4). A fixing mechanism (2) is provided between the distillation flask (3) and the base (1). The fixing mechanism (2) includes an outer ring (201) fixed to the outside of the distillation flask (3). A rubber ring (202) is fixedly connected to the bottom of the outer ring (201). The rubber ring (202) is attached to the top of the base (1). Two positioning posts (205) are symmetrically fixedly connected to the top of the base (1). The outer ring (201) is movably sleeved on the outside of the two positioning posts (205). Two limiting plates (2010) are symmetrically provided above the outer ring (201). A rubber pad (2011) is fixedly connected to the bottom of each of the two limiting plates (2010). Both rubber pads (2011) are attached to the top of the outer ring (201).

2. The distillation apparatus for chemical experiments according to claim 1, characterized in that: The top of the base (1) is symmetrically rotatably connected to two supports (203), and the top of each support (203) is fixedly connected to a U-shaped rod (209). Two limiting plates (2010) are respectively movably sleeved on the outside of the two U-shaped rods (209).

3. The distillation apparatus for chemical experiments according to claim 1, characterized in that: The top of the base (1) is symmetrically fixedly connected to two guide rods (2013), and two limiting plates (2010) are respectively movably sleeved on the outside of the two guide rods (2013).

4. The distillation apparatus for chemical experiments according to claim 3, characterized in that: A lifting plate (204) is movably connected between the two guide rods (2013), and the lifting plate (204) is located below the two limit plates (2010).

5. The distillation apparatus for chemical experiments according to claim 4, characterized in that: The top of the lifting plate (204) is symmetrically fixedly connected to two L-shaped blocks (2012). The two L-shaped blocks (2012) are respectively sleeved on the outside of the two guide rods (2013), and the two L-shaped blocks (2012) respectively abut against the top of the two limiting plates (2010).

6. The distillation apparatus for chemical experiments according to claim 1, characterized in that: The top of the base (1) is rotatably connected to a lead screw (206), the top of the lead screw (206) is fixedly connected to a handwheel (207), the outer side of the lead screw (206) is threaded with a sleeve block (208), and the lifting plate (204) is fixed to the outer side of the sleeve block (208).

Images